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Floating Aquatic Vegetation Control Program Water Hyacinth, Spongeplant and Water Primrose

2016 Annual Monitoring Report

California Department of Parks and Recreation

Division of Boating and Waterways

January 31, 2017

Floating Aquatic Vegetation Control Program Annual Monitoring Report – 2016 Water Hyacinth, Spongeplant and Water Primrose Control Projects

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TABLE OF CONTENTS

LIST OF TABLES ................................................................................................... - 2 - LIST OF FIGURES ................................................................................................ - 2 - ACRONYMS AND ABBREVIATIONS .................................................................... - 4 - EXECUTIVE SUMMARY ....................................................................................... - 6 - 1 INTRODUCTION ............................................................................................. - 9 -

1.1 Extent of Infestation ............................................................................... - 9 - 1.2 Setting .................................................................................................... - 9 -

2 SENATE BILL 1344 & ASSEMBLY BILLS 1540 AND 763 ............................ - 11 - 2.1 Section 64 of the Harbors and Navigation Code .................................. - 11 - 2.2 Risk Assessment Status ...................................................................... - 13 -

3 ENVIRONMENTAL COMPLIANCE ............................................................... - 14 - 3.1 Summary of Regulatory Compliance Requirements .............................. - 14 - 3.1.1 Reporting Requirements ..................................................................... - 14 - 3.1.2 Statewide General NPDES Permit ...................................................... - 15 - 3.1.3 USFWS Biological Opinions for FAV .................................................. - 16 - 3.1.4 NMFS Letter of Concurrence for FAV ................................................. - 18 -

4 PERSONNEL, MATERIALS AND METHODS ................................................ - 15 - 4.1 FAV Personnel ....................................................................................... - 15 - 4.1.1 Application Crews ............................................................................... - 15 - 4.1.2 Monitoring Personnel .......................................................................... - 16 - 4.2 Materials and Methods ........................................................................... - 16 - 4.2.1 Herbicide Application .......................................................................... - 16 - 4.2.2 Environmental Monitoring ................................................................... - 19 - 4.2.3 Contract Laboratory Standard Operating Procedures ......................... - 22 -

5 MONITORING RESULTS AND DISCUSSION .............................................. - 23 - 5.1 Threatened and Endangered Species ................................................... - 23 - 5.2 Infestation and Herbicide Application ..................................................... - 23 - 5.2.1 Summary of Herbicide Use ................................................................. - 23 - 5.3 Monitoring Data and Laboratory Results ................................................ - 27 - 5.3.1 Dissolved Oxygen, Turbidity and pH ................................................... - 27 - 5.3.2 Herbicide Residue Concentrations ...................................................... - 28 - 5.3.3 Aquatic Pesticide Application Plan Effectiveness................................ - 29 - 5.4 Alternative Control Methods and Special Studies .................................. - 29 - 5.4.1 Non-Chemical Control ......................................................................... - 29 - 5.4.2 Toxicological Fishery Impact Study ..................................................... - 32 - 5.4.3 Delta Regional Areawide Aquatic Weed Project ................................. - 32 -

6 ACKNOWLEDGEMENTS .............................................................................. - 34 - 7 LITERATURE CITED ..................................................................................... - 35 - APPENDIX A ....................................................................................................... - 36 - APPENDIX B ....................................................................................................... - 57 - APPENDIX C ....................................................................................................... - 85 -


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APPENDIX D ....................................................................................................... - 87 - APPENDIX E ..................................................................................................... - 104 - APPENDIX F ..................................................................................................... - 110 - Cover: Above: site 85, Old River on July 31, 2015; Below: site 85, Old River on

December 12, 2016; Photo credit – Michael Palm

LIST OF TABLES

Table 1. Specific Dissolved Oxygen Water Quality Objectives ............................ - 16 - Table 2. FAV Treatment Sites, Herbicides and Timing ........................................ - 17 - Table 3. 2016 FAV Monitoring Sites .................................................................... - 21 - Table 4. 2016 FAV Monitoring Sites and Habitat Quality ..................................... - 21 - Table 5. 2016 FAV Herbicide Use and Acreage Treated by Month ..................... - 25 - Table 6. Receiving Water Limits for FAV Herbicides ........................................... - 29 - Table 7. 2016 FAV Sites Controlled by Mechanical Harvesting ........................... - 31 -

Table B- 1. March 2016 Herbicide and Adjuvant Use .......................................... - 58 - Table B- 2. April 2016 Herbicide and Adjuvant Use ............................................. - 59 - Table B- 3. May 2016 Herbicide and Adjuvant Use ............................................. - 61 - Table B- 4. June 2016 Herbicide and Adjuvant Use ............................................ - 63 - Table B- 5. July 2016 Herbicide and Adjuvant Use .............................................. - 66 - Table B- 6. August 2016 Herbicide and Adjuvant Use ......................................... - 70 - Table B- 7. September 2016 Herbicide and Adjuvant Use ................................... - 75 - Table B- 8. October 2016 Herbicide and Adjuvant Use ....................................... - 79 - Table B- 9. November 2016 Herbicide and Adjuvant Use .................................... - 82 -

LIST OF FIGURES

Figure 1. 2016 FAV Herbicide Use ...................................................................... - 25 - Figure 2. 2016 FAV Acreage Treated Per Herbicide............................................ - 26 - Figure 3. Herbicide Use by Year 2010 to 2016 .................................................... - 26 - Figure 4.Total FAV Acres Chemically Treated by Year, 1990-2016..................... - 27 - Figure 5. Cubic Yards of FAV Removed by Month .............................................. - 31 -

Figure A- 1. 2016 FAV Project Area and Monitoring Sites ................................... - 37 - Figure A- 2. FAV Northern Sites and USFWS Areas ........................................... - 39 - Figure A- 3. FAV Southern Sites and USFWS Areas ........................................... - 41 - Figure A- 4. 2016 FAV Northern Treated Sites .................................................... - 43 - Figure A- 5. 2016 FAV Southern Treatment Sites................................................ - 45 -


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Figure A- 6. 2016 Treatment Count, Northern Sites ............................................. - 47 - Figure A- 7. 2016 Treatment Count, Southern Sites ............................................ - 49 - Figure A- 8. 2016 Herbicide Use, Northern Sites ................................................. - 51 - Figure A- 9. 2016 Herbicide Use, Southern Sites ................................................ - 53 - Figure A- 10. 2016 FAV Mechanical Harvesting Sites ......................................... - 55 -

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ACRONYMS AND ABBREVIATIONS

1. 2,4-D – 2,4-dichlorophenoxyacetic acid 2. AHP – Aquatic Health Program 3. ANOVA –Analysis of Variance 4. APAP – Aquatic Pesticide Application Plan 5. BMP – Best Management Practices 6. BO or BiOp – Biological Opinion 7. CDEC – California Data Exchange Center 8. CDFA-CAC – California Department of Food and Agriculture – Center for Analytical

Chemistry 9. CDFW – California Department of Fish and Wildlife 10. CDPR – California Department of Pesticide Regulation 11. CF – Condition Factor 12. COLD – Cold Freshwater Habitat (Basin Plan beneficial use) 13. CVRWQB – Central Valley Regional Water Quality Control Board 14. DBW – Division of Boating and Waterways 15. Delta – Sacramento-San Joaquin Delta 16. DO – Dissolved Oxygen (measured in mg/l or ppm) 17. DPF – Days Post Fertilization 18. DPH – Days Post Hatch 19. DPS – Distinct Population Segment 20. DRAAWP – Delta Regional Areawide Aquatic Weed Project 21. DWR – California Department of Water Resources 22. EFH – Essential Fish Habitat 23. EPA – United States Environmental Protection Agency 24. ESA – Endangered Species Act (federal) 25. FAO – Food and Agriculture Organization of the United Nations 26. FAV – Floating Aquatic Vegetation 27. GC/MS – Gas Chromatography/Mass Spectrometry 28. GGS – Giant Garter Snake 29. HDPE – High Density Polyethylene 30. HPLC – High Performance Liquid Chromatography 31. IEP – Interagency Ecology Program 32. LOQ – Limit of Quantitation 33. NASA – National Aeronautics and Space Administration 34. NMFS – National Marine Fisheries Service 35. NOAA – National Oceanic and Atmospheric Administration 36. NOI – Notice of Intent 37. NPDES – National Pollution Discharge Elimination System 38. NTU – Nephelometric Turbidity Units 39. OGA – Oil Globule Area 40. OMP – Operations Management Plan 41. PCR – Pest Control Recommendation 42. PME – Precision Measurement Engineering, Inc. 43. ppb – Parts per Billion (μg/l) 44. QAC – Qualified Applicator Certificate 45. QAPP – Quality Assurance Project Plan 46. SAV – Submersed Aquatic Vegetation 47. SCA – Specific Cooperative Agreement 48. SCP – Spongeplant Control Program


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49. SDWC – Stockton Deep Water Channel 50. SPWN – Spawning, Reproduction, and/or Early Development (Basin Plan beneficial

use) 51. SWRCB – State Water Resources Control Board 52. UCD – University of California, Davis 53. USBR – United States Bureau of Reclamation 54. USDA-ARS – United States Department of Agriculture – Agricultural Research

Service 55. USFWS – United States Fish and Wildlife Service 56. UTC – Coordinated Universal Time 57. UTM – Universal Transverse Mercator 58. VELB – Valley Elderberry Longhorn Beetle 59. WARM – Warm Freshwater Habitat (Basin Plan beneficial use) 60. WHCP – Water Hyacinth Control Program


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EXECUTIVE SUMMARY

Water hyacinth (Eichhornia crassipes), South American spongeplant (Limnobium laevigatum) and Uruguay water primrose (Ludwigia hexapetala) are non-native, floating, invasive aquatic plants. They grow in wetlands, marshes, shallow water bodies, slow moving waterways, lakes, reservoirs, and rivers. Water hyacinth, spongeplant and water primrose can have negative navigational, agricultural, public safety, environmental, industrial or economic impacts. These plants can de-stabilize dissolved oxygen cycles, crowd out native plants, shade out important shallow water fish habitat, obstruct waterways and navigational channels, and block agricultural and municipal water intakes. In 1982, Senate Bill 1344 (Garamendi and Nielsen), Chapter 2, Article 2, Section 64 amended the statutes of the California Harbors and Navigation Code to designate the California Department of Parks and Recreation Division of Boating and Waterways (DBW) as the lead agency for controlling water hyacinth in the Sacramento-San Joaquin Delta (Delta), its tributaries, and the Suisun Marsh. As a result, the Water Hyacinth Control Program (WHCP) was established in 1983. In 2012, Assembly Bill 1540 (Buchanan) was passed to add spongeplant control to DBW’s jurisdiction. Thus the Spongeplant Control Program (SCP) was established. In 2013, Assembly Bill 763 (Buchanan) was passed to address the need for a holistic approach to manage aquatic weeds in the Delta. This bill changed the overall strategic approach towards invasive aquatic plant management for the Division of Boating and Waterways. It mandated greater coordination among local, state, federal and private boating interests in the Delta to identify new plant species through a risk assessment based process to manage invasive aquatic plants. In 2016, the California Department of Fish and Wildlife (CDFW) completed a risk assessment for Uruguay water primrose and concluded that “Uruguay water primrose should be considered an invasive aquatic plant that causes or is likely to cause economic or environmental harm or harm to human health in California.” Accordingly, DBW added water primrose to the existing control program and began treatments in September 2016. With the addition of water primrose to the program, the WHCP and SCP have been renamed to the Floating Aquatic Vegetation (FAV) Control Program. This program operates under the regulations imposed by the National Pollutant Discharge Elimination System (NPDES) Statewide General Permit (CAG990005), issued by the State Water Resources Control Board (SWRCB); the U.S. Fish and Wildlife Service (USFWS) Biological Opinions (81410-2013-F-0005 and 08FBDT00-2014-F-0029); the National Oceanic and Atmospheric Administration, National Marine Fisheries Service (NMFS) Letters of Concurrence (2013/9443 and 2014-394) pursuant to Section 7 of the Endangered Species Act (ESA); and the CDFW Streambed Alteration Agreement (1600-2015-0132-R3). Federal consultations were conducted with the U.S. Department of Agriculture – Agricultural Research Service (USDA-ARS) as DBW’s federal nexus. As part of these regulations a monitoring program was developed to evaluate impacts of the FAV Control Program (water hyacinth, spongeplant and water primrose) on water quality and federally listed threatened and endangered species. All FAV water quality monitoring followed the NPDES Annual Monitoring Protocol as outlined in the Aquatic Pesticide Application Plan (APAP), which was approved in 2014 by the SWRCB. Monitoring activities include recording FAV impacts on beneficial waters of the United States, observations of federally listed threatened or endangered species, and associated listed species habitats. DBW monitored 16 sites within the legal Delta, San Joaquin River and Merced River. Herbicide residues were analyzed in receiving waters and


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water quality parameters such as dissolved oxygen, temperature, conductivity, salinity, pH, and turbidity were measured at representative locations. During 2016, water samples and water quality measurements were collected per the NPDES monitoring requirements. There were several occurrences where dissolved oxygen levels, turbidity and pH exceeded limits in the Water Quality Control Plan (Basin Plan) for the Sacramento and San Joaquin River Basins established by the Central Valley Regional Water Quality Control Board (CVRWQCB). There was no field evidence to suggest a correlation of these exceedances with DBW’s FAV Control Program operations. These occurrences were expected to be temporary given the diurnal tidal movements of the Delta, varying hydrodynamics, and periodic mixing of the water column. In addition, there were no observations of injured or impacted species of concern during follow up site surveys. No incidental take of threatened or endangered species occurred during the 2016 season. All herbicide (and adjuvant) residue concentrations at receiving water locations were either not detected or were below receiving water limits as specified in the NPDES permit. For all glyphosate, imazamox, and penoxsulam water samples, herbicide residues were not detected. Residue concentrations from 2,4-D water samples were either not detected or ranged between 0.103 ppb to 1.78 ppb. In 2016, the DBW applied 3,101.31 gallons of glyphosate, 929.30 gallons of 2,4-D, 3.71 gallons of imazamox, 0.22 gallons of penoxsulam and 1,995.99 gallons of Agridex for FAV control. Herbicide treatments of the 2016 season began on March 10, 2016 and continued through November 30, 2016. DBW successfully treated a total of 4,296.31 acres of water hyacinth, spongeplant, and/or water primrose in the Delta and its tributaries. NASA Landsat imagery showed that the “total acreage of FAV detected in Delta waterways on November 2 [2016] decreased by about 35% compared to the acreage detected by Landsat imagery in mid-September 2016.” The USFWS Biological Opinion for the Water Hyacinth Control Program (WHCP) states, “From years 2014 to 2017 DBW may treat up to 3,500 acres of water hyacinth within the 350 treatment sites.” In November, DBW expected to exceed the 3,500 acre limit for water hyacinth and submitted a request in partnership with the USDA-ARS, to the USFWS and NMFS for a change in action for the WHCP. The change in action requested “to treat up to 500 additional acres of water hyacinth from November 16 to November 30, 2016, for a maximum of 4,000 treament acres in the Delta and its tributaries in 2016”. The USFWS reviewed the request and approved the addition of up to 500 acres to the total treated acres under the Biological Opinion. NMFS reviewed the request and concurred that “the requested change in action is not likely to expose listed species, their designated critical habitat and Essential Fish Habitat to glyphosate levels that may affect the species and their habitat beyond those that were previously considered in the informal consultation that was conducted for the WHCP.” By combining the 1,000 acres allowed annually for the SCP, the FAV Control Program essentially had a total of 5,000 acres alloted for herbicide treatment in 2016. Primarily due to the loss of one month for herbicide applications (weather such as lightning and wind), DBW was not able to treat the entire 5,000 acres designated for 2016 treatments. DBW also continued work with a mechanical harvesting firm, under a multi-year contract (October 2015 to May 2019) to mechanically harvest FAV from waterways of the Delta that were identified as being a nursery site or having high infestations of water hyacinth, spongeplant and/or water primrose. Through consultations with USFWS and NMFS, DBW proposed to utilize a calendar-based schedule for FAV activities from 2013 to 2017 which


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included the use of mechanical removal of FAV from July to April except May and June. Severe infestations of FAV in the Stockton Waterfront during late-April warranted mechanical control of FAV to immediately clear the waterway. As a result, the USDA-ARS in partnership with DBW requested a one-time change in action to mechanically control water hyacinth only in McLeod Lake of the Stockton Waterfront during May and June 2016. NMFS concluded that “the requested change in action is not likely to expose listed species and their designated critical habitats, and EFH to effects beyond those that were previously considered in the informal consultation”. NMFS and USFWS approved mechanical harvesting during May and June in Stockton provided that biological monitors were onboard every harvesting vessel to identify if listed species were present. DBW was able to conduct mechanical harvesting almost continuously throughout the year in various locations of the Delta. These locations included a section of the Stockton Deep Water Channel from Weber Point to Buckley Cove, Stockton Waterfront, Calaveras River, Whiskey Slough, a section of Old River in the South Delta, Snodgrass Slough, Sycamore Slough and Seven Mile Slough. The contractor used a combination of harvesting equipment, excavators, and dump trucks to harvest and remove FAV from the water and take plants to an approved spoils site for drying and decay. Approximately 89,227 cubic yards or roughly 55 acres of FAV were controlled by mechanical means between January 4, 2016 and December 30, 2016. DBW has reached out to the local Reclamations Districts to seek guidance, assistance and cooperation on mechanical control for water hyacinth. The Division is also actively seeking cooperation and collaboration with landowners to provide spoil locations for mechanically removed floating aquatic vegetation.


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1 INTRODUCTION

1.1 Extent of Infestation The California Department of Parks and Recreation Division of Boating and Waterways (DBW) is the designated lead state department for controlling water hyacinth (Eichhornia crassipes), South American spongeplant (Limnobium laevigatum) and Uruguay water primrose (Ludwigia hexapetala), which are non-native, invasive, floating, aquatic weeds (Appendix F) that can potentially grow in approximately 67,779 water surface acres of the Sacramento-San Joaquin Delta and its tributaries (San Joaquin River, Tuolumne River and Merced River). Water hyacinth coverage estimates in the Delta since 1981 have ranged from less than 500 acres, up to approximately 2,500 acres (DBW 2012). This wide range of annual water hyacinth acreage in the Delta is dependent upon many factors including acreage treated, timing of treatments, seasonal air and water temperatures, water flows, water levels, and rainfall. In 2007, South American spongeplant was identified in the Delta near Antioch and found again in following years, spreading to several other locations within the Delta. Based on DBW’s observations, spongeplant distributions continued to expand increasingly throughout the Delta between 2013 and 2016. In 2016, spongeplant was observed in many sites of the Delta that contained either small amounts of individual plants or larger infestations. Specifically, Seven Mile Slough in Sacramento County contained a large infestation of spongeplant that covered a significant portion of the waterway. This location was considered a nursery site for spongeplant. Uruguay water primrose can be found throughout the Delta, often observed in competition with water hyacinth and native floating pennywort (Hydrocotyle ranunculoides). It has been observed that water primrose coverage has expanded significantly in the Delta in recent years (pers. comm). In 2016, field observations and public reports indicated high infestations of water primrose in waterways surrounding Bethel Island (Taylor Slough and Sandmound Slough), that were problematic for vessel navigation between June and August. Determining the annual extent of infestation of invasive FAV in the Delta and its tributaries can be difficult because both individual plants and large mats can move with river currents, diurnal tidal movement and winds. Historically, pre- and post-season infestations have been assessed through visual estimates conducted by DBW field staff. However, through a partnership with National Aeronautics and Space Administration (NASA) as a part of the US Department of Agriculture – Agricultural Research Service (USDA-ARS) Delta Regional Areawide Aquatic Weed Project (DRAAWP), NASA has provided DBW map imagery from Landsat satellite data that depicts live water hyacinth and water primrose acreage of areas that have high probability of experiencing > 50% coverage of FAV in Delta waterways. Imagery was provided on a monthly basis to DBW, weather permitting since cloud cover can impact the satellite image. With this remote sensing tool, DBW and partners have been able to better track FAV distributions.

1.2 Setting The FAV Control Program includes portions of eleven counties that encompass the Delta and its upland tributaries. The eleven counties include Alameda, Contra Costa, Fresno,


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Madera, Merced, Sacramento, San Joaquin, Solano, Stanislaus, Tuolumne, and Yolo. General boundaries for the treatment area in the Delta and its tributaries are as follows:

West up to and including Sherman Island, at the confluence of the Sacramento and San Joaquin Rivers

West up to the Sacramento Northern Railroad to include water bodies north of the southern confluence of the Sacramento River and Sacramento River Deep Water Ship Channel

North to the northern confluence of the Sacramento River and Sacramento River Deep Water Ship Channel, plus waters within Lake Natoma

South from Clifton Court along Old River to Mossdale, and continuing along the San Joaquin River to Mendota, just east of Fresno

East along the San Joaquin River to the City of Stockton, continuing east along the San Joaquin River to Friant Dam on Millerton Lake

East along the Tuolumne River to La Grange Reservoir below Don Pedro Reservoir East along the Merced River to Merced Falls, below Lake McClure

Within the 2016 FAV project area, there are 418 possible treatment sites. These sites vary in size (between 5 and 1,700 acres) and may be between one and three miles in length. See Figures A-1, A-2 and A-3 in Appendix A for maps of the FAV project area and monitoring sites sampled in 2016.


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2 SENATE BILL 1344 & ASSEMBLY BILLS 1540 AND 763

2.1 Section 64 of the Harbors and Navigation Code Section 64 of the Harbors and Navigation Code is amended to read as follows: “(a) The Legislature hereby finds and declares that the growth of water hyacinth (Eichhornia crassipes), Brazilian elodea (Egeria densa), and South American spongeplant (Limnobium laevigatum) in the Sacramento-San Joaquin Delta, its tributaries, and the Suisun Marsh has occurred at an unprecedented level and that the resulting accumulations of water hyacinth, Egeria densa, and South American spongeplant obstruct navigation, impair other recreational uses of waterways, have the potential for damaging manmade facilities, and may threaten the health and stability of fisheries and other ecosystems within the delta and marsh. Accordingly, it is necessary that the state, in cooperation with agencies of the United States, undertake an aggressive program for the effective control of water hyacinth, Egeria densa, and South American spongeplant in the delta, its tributaries, and the marsh.” “(b) The Division is designated as the lead agency of the state for the purpose of cooperating with agencies of the United States and other public agencies in controlling water hyacinth, Egeria densa, and South American spongeplant in the delta, its tributaries, and the marsh.” AB 763 (Passed in 2013) “This bill would additionally designate the Division as the lead agency of the state for the purpose of cooperating with other state, local, and federal agencies in identifying, detecting, controlling, and administering programs to manage invasive aquatic plants, as defined, in the Sacramento-San Joaquin Delta, its tributaries, and the Suisun Marsh.” Section 64.5 of the Harbors and Navigation Code is amended to read as follows: “(a) The Division is designated as the lead agency of the state for the purpose of

cooperating with other state, local, and federal agencies in identifying, detecting, controlling, and administering programs to manage invasive aquatic plants in the Sacramento-San Joaquin Delta, its tributaries, and the Suisun Marsh. The Division, in consultation with appropriate state, local, and federal agencies, may take such action it determines is necessary, upon concurrence from the Department of Fish and Wildlife following the completion of the risk assessment described in subdivision (c), to implement control and, when feasible, eradication measures for invasive aquatic plants. Any actions taken to control invasive aquatic plants shall be in compliance with all applicable laws and regulations and conducted in an environmentally sound manner.” “(b) The Division shall regularly consult with the United States Department of Agriculture, the United States Fish and Wildlife Service, the National Oceanic and Atmospheric Administration, the University of California, and other members of the scientific and research communities, as well as other state agencies with authority over the control of invasive aquatic plants to determine which species of those plants should be given the highest priority for management and determine the best control and, when feasible, eradication measures.”


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“(c) (1) After consulting with the various entities as required in subdivision (b), if the Division identifies a species of aquatic plant that may be invasive and need to be controlled or eradicated, the division shall notify the Department of Fish and Wildlife of the potential threat from that aquatic plant species. After receipt of that notice, the Department of Fish and Wildlife, in consultation with other appropriate local, state, and federal agencies, including, but not limited to, the Department of Food and Agriculture, the Department of Water Resources, the State Water Resources Control Board, the Department of Pesticide Regulation, and the Office of Environmental Health Hazard Assessment, shall conduct a risk assessment of the aquatic plant species identified by the Division to determine whether the plant species is invasive and presents a threat to the environment, economy, or human health. In making that determination, the Department of Fish and Wildlife shall take prompt action to minimize detrimental impacts and costs of management, and shall consider all of the following: (A) Whether the aquatic plant species may obstruct navigation and recreational uses of waterways. (B) Whether the aquatic plant species may cause environmental damage, including threats to the health and stability of fisheries, impairment to birds’ access to waterways and nesting, roosting, and foraging areas, deterioration of water quality resulting from plant decay, and harm to native plants. (C) Whether the aquatic plant species may cause harm to the state’s economy, infrastructure, or manmade facilities such as state water storage facilities and pumping operations, by increasing flood risk, threatening water supplies by blocking pumps, canals, and dams necessitating early control efforts. (2) Based on factors specified in subparagraphs (A), (B), and (C) of paragraph (1) and any other environmental, economic, or human health impacts, the risk assessment shall specify whether the plant species under consideration has been determined to be an invasive aquatic plant. Findings from the risk assessment shall be documented in a way that clearly describes the severity and types of impacts caused by a plant species determined to be an invasive aquatic plant. (3) Within 60 days after completing the risk assessment required by paragraph (1), the Department of Fish and Wildlife shall report its findings to the division so that the division may take any necessary action to control and, when feasible, eradicate an invasive aquatic plant, as authorized under subdivision (a). (d) For purposes of this section, “invasive aquatic plant” means an aquatic plant or algae species, including its seeds, fragments, and other biological materials capable of propagating that species, whose proliferation or dominant colonization of an area causes or is likely to cause economic or environmental harm or harm to human health. (e) Aquatic plants shall be determined to be invasive through the risk assessment required to be completed by the Department of Fish and Wildlife in consultation with the division and other state, local, and federal agencies pursuant to subdivision (c).”


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2.2 Risk Assessment Status

In August 2014, DBW requested a risk assessment from CDFW for water primrose to determine if the species is invasive and presents a threat to the environment, economy or human health. In 2016, CDFW completed the risk assessment for Uruguay water primrose and concluded that “Uruguay water primrose should be considered an invasive aquatic plant that causes or is likely to cause economic or environmental harm or harm to human health in California.” Accordingly, DBW added water primrose to the existing FAV Control Program and began herbicide treatments in September 2016. In July 2016, DBW requested a risk assessment from CDFW for floating pennywort (Hydrocotyle ranunculoides). Although floating pennywort is a native species, there are concerns it may become a nuisance. The risk assessment is currently being conducted by CDFW. At this time, there are no other pending risk assessments for additional species of FAV.


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3 ENVIRONMENTAL COMPLIANCE

3.1 Summary of Regulatory Compliance Requirements

The following constitutes a summary of the environmental compliance documents required to implement the FAV Control Program. Each document has requirements designed to ensure avoidance or minimization of significant impacts to beneficial uses of waters of the U.S., federally threatened and endangered species, or state threatened and endangered species protected by the Endangered Species Act (ESA). DBW partners with the USDA-ARS as a federal nexus to obtain required approvals to operate the FAV Control Program from two federal agencies: U.S. Fish and Wildlife Service (USFWS) and the National Oceanic and Atmospheric Administration, National Marine Fisheries Service (NMFS). DBW obtained multi-year (2013-2017) authorizations from USFWS and NMFS to operate the FAV Control Program pursuant to Section 7 of the Endangered Species Act (ESA).

USFWS Biological Opinion (81410-2013-F-0005), effective March 13, 2013

USFWS Biological Opinion (08FBDT00-2014-F-0029), effective August 11, 2014

NMFS Letter of Concurrence (2013/9443), effective February 27, 2013

NMFS Letter of Concurrence (2014-394), effective May 28, 2014 DBW is currently in consultations with USFWS and NMFS for a new BO and Letter of Concurrence beyond 2017. A National Pollutant Discharge Elimination System (NPDES) permit is required by the State Water Resources Control Board (SWRCB). It is referenced as the Statewide General NPDES Permit for the Discharge of Aquatic Pesticides for Aquatic Weed Control in Waters of the United States (Permit No.CAG990005, Water Quality Order 2013-0002-DWQ). Coverage under this permit was obtained in January 2014 and expires on November 30, 2018. In addition, a Streambed Alteration Agreement (or Routine Maintenance Agreement) was entered into between DBW and CDFW for the mechanical removal/harvesting of FAV (Notification No. 1600-2015-0132-R3). The Agreement became effective October 23, 2015 and shall expire on December 31, 2019.

3.1.1 Reporting Requirements The NPDES Statewide General Permit for Aquatic Pesticide Use requires DBW to submit an annual report March 1 following the FAV application season. Reporting per NPDES guidelines must include the following: 1) an executive summary discussing permit compliance or violation of permit terms and conditions to beneficial waters of the U.S.; 2) the effectiveness of the Aquatic Pesticide Application Plan (APAP); 3) the discharge of pollutants associated with aquatic pesticide applications; 4) a summary of monitoring data, including changes to water quality, and violations of compliance with water quality objectives as outlined in the Water Quality Control Plan (Basin Plan) for the Sacramento River and San Joaquin River Basins issued by the Central Valley Regional Water Quality Control Board (CVRWQCB); 5) identification of Best Management Practices (BMPs) and their effectiveness in meeting permit requirements; 6) a discussion of modifications or management corrections for any violations that occurred; 7) maps showing application area,


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acreage and sampling locations, types and amounts of aquatic pesticides used during each application event, information on surface area, volume and rate of application, and 8) sampling results for all required monitoring. Both the USFWS Biological Opinions (BO) and the National Oceanic and Atmospheric Administration (NOAA), National Marine Fisheries Service (NMFS) Letters of Concurrence require annual reports to be submitted on January 31st, following the application season. These reports summarize compliance with the terms and conditions which include species and habitat protection, water quality monitoring, and any additional monitoring and studies. Additional reporting requirements are on a case-by-case basis in the event an incidental take should occur with any of the species discussed in the USFWS BOs. Take is defined as “to harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect, or to attempt to engage in any such conduct.” Reporting of take begins with immediate notification to the USFWS biologist (based on jurisdiction) in charge of administering the BO and requires documentation of information, such as location of take, number of species, water quality conditions, chain of custody, and prescriptive action for preventing future occurrences.

3.1.2 Statewide General NPDES Permit

RECEIVING WATERS

There are clear definitions in the NPDES Permit (No. CAG990005, Water Quality Order 2013-0002-DWQ) regarding application area, treatment area, and receiving waters. In the NPDES Permit, an application area is defined as the area in which aquatic pesticides are directly applied. The treatment area is the area treated with an aquatic herbicide to control aquatic weeds. It is the responsibility of the discharger to define the treatment area for each location that it discharges to. The FAV Control Program sprays herbicide directly onto water hyacinth, spongeplant and/or water primrose and does not inject herbicides into the water column to treat submerged plants. Therefore, considering the NPDES definitions, the application and treatment areas are essentially the same geographic place in relation to the FAV Program. Receiving waters are defined in two manners: 1) waters directly down flow of the treatment area, and 2) waters within the treatment area after completion of the treatment event when herbicide residue levels fall below minimum effective concentrations. Herbicides applied to aquatic plants are not considered a pollutant until residues reach receiving waters. This is because an herbicide designed to treat aquatic plants and approved by the U.S. Environmental Protection Agency (EPA) cannot also be a pollutant under the Clean Water Act when the herbicide is doing what it was designed and approved to do under federal pesticide use regulations.

NUMERIC LIMITS

Dissolved Oxygen

Dissolved oxygen (DO) limits are outlined in the Sacramento River and San Joaquin River Basin Plan issued by the CVRWQCB and subsequently required under the NPDES permit. Within the legal boundaries of the Delta, the DO concentration shall not be reduced below:

7.0 mg/l in the Sacramento River (below the I Street Bridge) and in all Delta waters west of the Antioch Bridge


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6.0 mg/l in the San Joaquin River (between Turner Cut and Stockton, 1 September through 30 November)

5.0 mg/l in all other Delta waters

For surface water bodies outside the legal boundaries of the Delta, the monthly median of the mean daily DO concentration shall not fall below 85 percent of saturation in the main water mass, and the 95 percentile concentration shall not fall below 75 percent of saturation. To protect beneficial uses of water, the dissolved oxygen concentrations shall not be reduced below the following minimum levels at any time:

5.0 mg/l for waters designated as warm freshwater habitat (WARM) 7.0 mg/l for waters designated as cold freshwater habitat (COLD) 7.0 mg/l for waters designated for spawning, reproduction, and development (SPWN)

In the locations listed in Table 1, dissolved oxygen concentrations shall not be reduced below the amount indicated during the stated time period.

Table 1. Specific Dissolved Oxygen Water Quality Objectives

Location DO concentration Time Period

Merced River from Cressy to New Exchequer Dam

8.0 mg/l All year

Tuolumne River from Waterford to La Grange

8.0 mg/l 15 October to 15 June

pH and Turbidity

In addition to DO limits, basin limits for pH and turbidity are also described in the Basin Plan and required under the NPDES permit. The discharge shall not cause the ambient pH to fall below 6.5 or exceed 8.5, and/or cause turbidity to increase as follows:

More than 1 Nephelometric Turbidity Units (NTU) where natural turbidity is between 0 and 5 NTUs

More than 20 percent where natural turbidity is between 5 and 50 NTUs More than 10 NTUs where natural turbidity is between 50 and 100 NTUs More than 10 percent where natural turbidity is over 100 NTUs

The Basin Plan also outlines general turbidity objectives for Delta waters: except for periods of storm runoff, the turbidity of Delta waters shall not exceed 50 NTUs in the waters of the Central Delta and 150 NTUs in other Delta waters.

3.1.3 USFWS Biological Opinions for FAV

The USFWS issued biological opinions (BO) (Service file No. 81410-2013-F-0005 and 08FBDT00-2014-F-0029) on the effects of DBW’s FAV Program on delta smelt (Hypomesus transpacificus) and its critical habitat, giant garter snake (Thamnophis gigas) and the valley elderberry longhorn beetle (Desmocerus californicus dimorphus). The FAV Program complies with the USFWS BO terms and conditions which include implementation of


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conservation measures identified in the FAV Program description. Below is a summary of the terms and conditions required under the BO.

DELTA SMELT The USFWS BO outlines specific mitigation measures to minimize impact to H. transpacificus (delta smelt) and associated habitats. Interagency Ecological Program (IEP) fish monitoring data is used to determine the presence or absence of delta smelt within or near herbicide application areas. The timing and location requirements that are specified in the USFWS BO aim to reduce the potential for negative impacts on delta smelt. The FAV Program area is divided into four USFWS Areas (Figures A-2 and A-3 in Appendix A): Area 1 (primary delta smelt habitat), Area 2 (secondary delta smelt habitat), Area 3 (tertiary delta smelt habitat) and Area 4 (non-delta smelt habitat). Herbicide applications in Areas 2, 3 and 4 may begin on March 1 and continue through November 30. Herbicide applications in Area 1 may begin June 1 and continue until November 30. For all treatments conducted between March 1 and June 30, the ability to treat FAV depends on the presence of listed fish species, which is determined by a review of available fish monitoring data and by species surveys on the day of the planned treatment. Herbicide applications will be suspended in the immediate treatment area in the event that delta smelt are identified, harmed or killed in the action area. An additional mitigation measure described in the USFWS BO is to develop and implement a toxicological study plan relating to the effects of new program herbicides, imazamox and penoxsulam, on delta smelt, larvae and eggs. The study will be approved by USFWS and completed prior to the utilization of these herbicides in Areas 1 and 2. Details of this study are described in Section 5.4.2 (page 32). The USFWS BO requires that personnel involved with the FAV Control Program receive USFWS-approved worker environmental awareness training. Under this training program, personnel are informed about the presence of delta smelt and its associated habitat. Training includes 1) species identification, 2) the life history of delta smelt, 3) the importance of Delta migratory routes, and 4) all terms and conditions of the USFWS BO for protection, avoidance and minimization of impacts to protected species under ESA.

VALLEY ELDERBERRY LONGHORN BEETLE The USFWS BO outlines specific mitigation measures to minimize impact to Desmocerus californicus dimorphus, the valley elderberry longhorn beetle (VELB), and associated elderberry shrub (Sambucus sp.) habitat. DBW was directed by USFWS to avoid impact to VELB by surveying for Sambucus spp. (elderberry shrub), and maintain a 100-foot buffer between treatment sites and shoreline elderberry shrubs. In areas where treatment cannot occur away from VELB habitat, and where a 100-foot buffer would preclude DBW’s ability to treat water hyacinth, DBW will use a 50-foot buffer when winds are less than 3 mph. In addition, wind speed and direction are also factors as to whether or not a treatment could occur in these areas. Herbicide applications occur away from and downwind of elderberry shrubs. The USFWS BO requires that personnel involved with the FAV Control Program receive worker environmental awareness training taught by a USFWS-approved biologist. Under this training program, personnel are informed about the presence of VELB and its habitat. Training includes 1) species identification, 2) the life history of VELB, 3) the importance of


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elderberry shrubs as habitat, and 4) all terms and conditions of the USFWS BO for protection, avoidance and minimization of impacts to protected species under ESA.

GIANT GARTER SNAKE The USFWS BO outlines specific mitigation measures to minimize impact to Thamnophis gigas (giant garter snake, GGS). Restrictions regarding GGS in the USFWS BO apply to any land based operations, which occur on Delta banks other than existing roads or boat ramps, and to mechanical removal of FAV in sensitive GGS habitat. Disturbance of upland GGS habitat will be conducted between May 1 and October 1 to lessen direct effects during the active season, because GGS are actively moving and avoiding danger. Mechanical harvesters will maintain a speed of 2 to 2.5 knots in areas outside of sensitive GGS, or areas where GGS has been sighted in the past, making it likely for any present GGS to move out of the area. Additionally, the mechanical harvester will stop and/or reverse the harvester if a snake is seen within FAV during removal. Disposal of FAV following handpicking or mechanical removal outside of the active season (May 1 – October 1) will be disposed of at an approved spoils area with low to no value GGS habitat to ensure no hibernating GGS are buried under piles of collected FAV. The entire FAV project area has been evaluated for GGS habitat. This evaluation has been incorporated into the GIS technology utilized by application crews. The application crews were also provided with a set of maps of previously surveyed and sensitive areas for GGS to minimize impact where GGS are most likely to be found.

The USFWS BO requires that personnel involved with the FAV Control Program receive USFWS approved worker environmental awareness training. Under this training program, personnel are informed about the presence of GGS (T. gigas) and habitat associated with the species. Training includes: 1) species identification, 2) the life history of the GGS, 3) the importance of irrigation canals, marshes/wetlands, and seasonally flooded areas as habitat, and 4) all terms and conditions of the USFWS BO for protection, avoidance and minimization of impacts to protected species under ESA.

3.1.4 NMFS Letter of Concurrence for FAV NMFS issued Letters of Concurrence (2013/9443 and 2014-394) in response to USDA-ARS and DBW’s request for ESA Section 7 consultation. Based on the FAV project descriptions and supplemental material provided, and the best available scientific data, NMFS concurs with USDA-ARS and DBW’s determination that the proposed use of herbicide products, adjuvants, physical removal, or mechanical methods is not likely to adversely affect federally listed Sacramento River winter-run Chinook salmon (Oncorhynchus tschawytscha), Central Valley spring-run Chinook salmon (O. tschawytscha), Central Valley steelhead trout (O. mykiss), or the Southern distinct population segment (DPS) of North American green sturgeon (Acipenser medirostris) or any of their designated critical habitats.

The FAV project description outlines specific mitigation measures and avoidance guidelines to minimize impact to Sacramento River winter-run Chinook salmon, Central Valley spring-run Chinook salmon, Central Valley steelhead trout, and green sturgeon. Dependent upon the type of water-year and in-stream flows, juvenile Chinook salmon and steelhead may be present in the Delta through June. The DBW proposed to begin herbicide applications as


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early as March 1 in sites where listed fish species are not likely to be present. The remainder of the action area may be treated provided that the available fish monitoring data indicates that salmonids are not likely present or that the pulse of juvenile Chinook salmon has migrated through the Delta. To minimize potential negative effects to chinook salmon and steelhead, DBW and USDA-ARS included specific timing for 2,4-D applications as a part of the proposed project. The proposed time frame for 2,4-D applications is consistent with the 2011 NMFS Biological Opinion for EPA registration of 2,4-D (for Pacific Salmonids). This biological opinion limits 2,4-D applications from June 15 through September 15 within the legal Delta and from July 15 through August 15 in the San Joaquin River (southern sites).

Specific guidelines were proposed by DBW and USDA-ARS, and thus concurred upon by NMFS to ensure fish are not impacted by FAV applications. The following practices are incorporated into the FAV protocols to avoid oxygen depletion due to decaying vegetation and ensure fish passage: In slow-moving and back-end sloughs infested with water hyacinth, applicators may only treat up to 30% of the water hyacinth mat at one time. In Delta tidal waters, applicators may only treat up to 50% of the water hyacinth mat at one time. Mats will be treated up to 3-acre strips, leaving at least 100 foot buffer strips between treated areas. Applicators must maintain buffer zones, treat at specific dissolved oxygen levels, and never block escape routes. Each FAV crew received a copy of the protocol and refresher training on Fish Passage Protocol prior to the 2016 treatment season. DBW continues to require herbicide applicators to be informed about the presence of Chinook salmon, steelhead, and green sturgeon and their associated habitat. Training includes: 1) species identification, 2) salmonid and sturgeon life history, 3) importance of migratory routes and identification of associated habitat, 4) impact avoidance guidelines and 5) the terms and conditions of the NMFS concurrence letter.


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4 PERSONNEL, MATERIALS AND METHODS

4.1 FAV Personnel

4.1.1 Application Crews

During 2016, the FAV Control Program had 5-10 full-time crews, with each crew consisting of an Aquatic Pest Control Specialist and an Aquatic Pest Control Technician. Crew availability depended on whether there were concurrent treatments for the Submersed Aquatic Vegetation (SAV) Control Program. DBW also had an interagency contract with the California Conservation Corps for additional personnel to assist the application crews. Each crew contains a minimum of one member possessing a Qualified Applicators Certificate (QAC), category “F” (aquatics), administered by the California Department of Pesticide Regulation (CDPR). Under contract with DBW, Merced County and Fresno County Departments of Agriculture also had staff assigned to conduct surveys and herbicide treatments or manual removal for FAV in the southern tributaries as needed.

APPLICATION PERSONNEL EDUCATION AND TRAINING

Qualified Applicator Certificate

Application crews receive continuing education credits in pesticide training to keep their QACs current. Continuing education covers pesticide laws and regulations which may include topics such as federal and state pesticide regulations, pesticide and worker safety, surface and ground water protection, pesticide labeling and label interpretation, and pesticide effects on the environment. Category F QACs are renewed every two years upon completion of the continued education credit requirements.

Environmental Awareness Training

Environmental awareness training was conducted in February 2016. This training included the following items:

Species identification and impact avoidance guidelines on all threatened and endangered species associated with the FAV Program.

Identification and protection of elderberry shrubs and protocol for monitoring species during an application season.

Identification and protection of the giant garter snake, including life history; importance of irrigation canals, marshes, wetlands, and seasonally flooded areas as habitat.

Identification and protection of Delta smelt, longfin smelt, Chinook salmon, steelhead, green sturgeon, and associated protected habitats, fishery closure dates, and other regulatory agency requirements.

Terms and conditions of the USFWS biological opinions and NMFS letters of concurrence for the FAV Program for protection, avoidance and minimization of adverse effects to protected species under the ESA.

Avoidance and minimization measures for species of concern that are outlined in the Routine Maintenance Agreement for mechanical removal/harvesting of water hyacinth Protocol for “take,” including reviewing the “Incidental Take Statement,” collection and handling of dead species, completion of chains of custody, and notification to USFWS.


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Equipment Training

Refresher training on the use and calibration of the dissolved oxygen meters and use of Motion F5t Tablet PC and ArcPad application also took place in February 2016.

4.1.2 Monitoring Personnel

Environmental monitoring activities are overseen by a Senior Environmental Scientist and conducted by qualified personnel, which may include a Senior Environmental Scientist, Environmental Scientist and/or Student Assistants. All water sampling events are carried out in accordance with the Quality Assurance Project Plan (QAPP) and the FAV Environmental Monitoring Protocol as approved by the State Water Resources Control Board, NMFS, and USFWS. Environmental scientists are responsible for understanding and adhering to the regulatory permits and biological opinion terms and conditions. They are also responsible for training other monitoring crew members on monitoring protocols, biological surveys, water sampling techniques, and the calibration and use of field equipment necessary to collect accurate data. Environmental Scientists conducted monitoring training for all monitoring personnel during 2016 on environmental monitoring and field equipment protocols.

4.2 Materials and Methods

4.2.1 Herbicide Application

FAV OPERATIONS MANAGEMENT PLAN

The FAV Operations Management Plan (OMP) details general requirements, the scope of program activities, a pre-application planning protocol, application/monitoring coordination protocol, herbicide application protocol; Best Management Practices (BMP) for herbicide handling, spray equipment maintenance and calibration, spill avoidance and contingency plan, listed species avoidance and habitat evaluation; dissolved oxygen/temperature measurement, fish passage protocol, and agricultural and water intake coordination.

HERBICIDES AND ADJUVANTS The herbicides and adjuvants used in 2016 by the FAV Control Program include the following:

Herbicides

Glyphosate (Roundup CustomTM), EPA Reg. No. 524-343-ZG 2,4-D (Weedar® 64), EPA Reg. No. 71368-1-ZB Imazamox (Clearcast®), EPA Reg. No. 241-437-AA-67690 Penoxsulam (Galleon SC®), EPA Reg. No. 67690-47-AA

Adjuvant

Agridex® (paraffin base petroleum oil and polyoxyethylate polyol fatty acid esters), CA Reg. No. 5905-50017-AA

DBW acquired restricted materials permits from the County Agricultural Commissioners for utilizing 2,4-D within the authorized time frame from June 15 to September 15 (Table 2). Galleon SC (penoxsulam a.i.) was field tested with the FAV Program in 2014 and 2016 for potential future use in the program. The supplier, SePro, assisted in the field test efforts to determine where the product could fit within the program.


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Table 2. FAV Treatment Sites, Herbicides and Timing

a DBW may not treat in any site if DO is between 3 ppm and Basin Plan limits (5 ppm to 8 ppm, by location). DBW may not treat if winds are >10 mph (or >7 mph in Contra Costa County).

b DBW will implement a survey-based approach to conducting treatments that allows for treatments from March through June in areas with re-growing water hyacinth when listed fish species are not present, as reported to NMFS and USFWS.

c DBW environmental scientists will continue to monitor fish surveys and avoid treating in sites where listed fish species are present; however, formal weekly reporting to NMFS and USFWS is not required after July 1.

d The 2,4-D time and location restrictions are specified in the NMFS BO for the Environmental Protection Agency registration of pesticides in order to protect listed salmonid species.

e DBW will monitor the efficacy of the new herbicides penoxsulam and imazamox (time to symptoms, plant death, and regrowth).

Delta smelt (DS) Habitat

Level

USFWS Area

Delta Boundary Area

Treatment Site Numbers

Fish Survey Reporting Required

b,c

Glyphosate 2,4-Dd Penoxsulam

e Imazamox

e Agridex Competitor

Primary DS Habitat

1 Legal Delta North of Hwy 12

200- 290 June 1 to

June 30

June 1 to

Nov. 30

No No No June 1 to

Nov. 30

No

Legal Delta South of Hwy 12

16-24b, 39-44, 69, 98a-176

June 1 to

June 30

June 1 to

Nov. 30

June 15 to

Sept. 15

No No June 1 to

Nov. 30

No

Secondary DS Habitat

2 Legal Delta South of Hwy 12

11-15, 33, 49-68, 78, 79, 83a-97

March 1 to

June 30

Mar. 1 to

Nov. 30

June 15 to

Sept. 15

No No Mar. 1 to

Nov. 30

No

Tertiary DS Habitat


1-10, 25-38, 45-48, 70-77,

80-82, 291

March 1 to

June 30

Mar. 1 to

Nov. 30

June 15 to

Sept. 15

Mar. 1 to

Nov. 30

Mar. 1 to

Nov. 30

Mar. 1 to

Nov. 30

Mar. 1 to

Nov. 30

Non-DS Habitat


300-309 March 1 to

June 30

Mar. 1 to

Nov. 30

June 15 to

Sept. 15

Mar. 1 to

Nov. 30

Mar. 1 to

Nov. 30

Mar. 1 to

Nov. 30

Mar. 1 to

Nov. 30

Non-Legal

Delta

310 and above March 1 to

June 30

Mar. 1 to

Nov. 30

July 15 to

Aug. 15

Mar. 1 to

Nov. 30

Mar. 1 to

Nov. 30

Mar. 1 to

Nov. 30

Mar. 1 to

Nov. 30


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BEST MANAGEMENT PRACTICES The DBW developed a series of BMPs that outline methods or techniques that have been found to be the most effective and a practical means of achieving a particular objective and/or to comply with FAV Program requirements.

Herbicide Handling Requirements – All personnel will be trained in herbicide handling in accordance with Food and Agriculture Code and Title 3 Code of Regulations pertaining to Pesticides and Pest Control Operations.

Spray Equipment Calibration – Herbicide application equipment used for the FAV Program is to be calibrated on at least a monthly basis during the treatment season.

Spill Avoidance and Contingency Plan – All herbicide spills are treated as emergencies and need to be remediated immediately. DBW applies preventative measures to reduce the potential for a serious spill.

Annual Environmental Awareness Training – All personnel involved in the aquatic weed control program received required Annual Environmental Awareness training.

Endangered Species Avoidance Measures – Implement avoidance measures to reduce or eliminate potential impacts of the programs on endangered species.

Agricultural and Water Intake Coordination – Specific measures are implemented to ensure herbicide treatments do not negatively impact water intakes. All herbicide label requirements are followed as they related to use of treated water for irrigation or drinking purposes. DBW also coordinates with county, water districts, State Water Project (SWP) or Central Valley Project (CVP) regarding water quality impacts.

APPLICATION EQUIPMENT Herbicide applications in 2016 were conducted with hand held spray wands operated from 16 to 21-foot airboats, outboard aluminum boats, or a ground spray rig. The boats are equipped for direct metering of herbicide, adjuvant and water into the pump system of the spraying unit. Each application crew utilized a Hach® HQ-30 Dissolved Oxygen Meter and a Motion F5t Tablet PC to record pre-spray and post-spray temperature, dissolved oxygen, wind speed, beginning and ending UTM coordinates of spray area, amount of herbicide used, and the date and time of treatment.

Spray equipment was calibrated on at least a weekly basis, after changing injection pumps or whenever problems with the equipment occurred. Injection systems were cleaned daily and hoses were cleaned as needed. Pump oil was changed every 50 hours. Boat maintenance was also conducted on a regular basis.

SITE SELECTION AND PRIORITIZATION Prior to the start of the 2016 treatment season, field crew visually surveyed all sites in their application region and estimated the amount of acres infested with FAV. Herbicide applications were prioritized such that nursery areas with high amount of growth and areas that are critical to public, agricultural, municipal, industrial, recreational or navigational use were treated first. DBW prioritized treatment sites based on results of pre-season field surveys, combined with the staff’s experience and knowledge of FAV growth patterns and distribution. Each site was ranked on several factors including: (1) whether or not the site was a nursery area, (2) current infestation levels, (3) potential for infestation, and (4) whether the site is important for navigation, public safety, recreation, and/or commercial use. Initial plans indicated the general priority for site


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treatment, and treatment plans were modified during the season due to weather conditions, growth and movement of water hyacinth, and environmental considerations. Logistics such as number of application crews available, travel time to sites, herbicide label restrictions, environmental mitigations measures, and daily tidal conditions are also factored into daily site selections for treatment. Following the terms and conditions specified in the NPDES permit, biological opinions, and concurrence letters, a number of sites were available for treatment starting in March, with the remainder of sites open for treatment after June 1. During the March to June time period when delta smelt, winter-run Chinook, spring-run Chinook, and/or steelhead juveniles were entering and/or present in the Delta, site selection depended on available Interagency Ecological Program (IEP) monitoring data showing the absence of special status fish species in treatment sites. Between March 1 and June 30, weekly fish survey and planned treatment site summaries were reported to USFWS and NMFS. The 2016 herbicide application season began on March 10, 2016 in sites within USFWS Areas 2, 3 and 4, where protected fish species were not likely to be present. At the start of the season, initial site prioritization focused FAV treatments in sections of Old and Middle Rivers in the South Delta, San Joaquin River upstream of Mossdale, Tuolumne River, French Camp Slough and Fourteen Mile Slough. After June 1, sites in USFWS Area 1, such as Snodgrass Slough, Lost Slough, and Sycamore Slough, became open for herbicide treatment. Throughout the season, fish monitoring data were continuously reviewed to avoid treating in sites where listed fish species were likely to be present. Sites selected for treatment were based on levels of FAV infestation, level of impacts to navigation, public safety, recreation and/or commercial use, threats to agricultural water pumping facilities. During 2016, the site selection process also considered information and concerns regarding FAV received via email and phone from the public.

4.2.2 Environmental Monitoring

FAV NPDES ANNUAL MONITORING PROTOCOL All water quality monitoring follows the NPDES Annual Monitoring Protocol as outlined in the Aquatic Pesticide Application Plan (APAP), which was approved in January 2014 by the State Water Resources Control Board. Quality control and quality analysis measures are outlined in the Quality Assurance Project Plan (QAPP). Monitoring activities include recording FAV impacts on beneficial waters of the United States, federally listed threatened and endangered species, and their habitats. DBW is required to document herbicide residues in receiving waters and monitor water quality parameters such as dissolved oxygen, temperature, conductivity, pH, turbidity, and waterway appearance at representative monitoring locations.

MONITORING EQUIPMENT A 19-21 foot aluminum air boat or a 22 foot outboard motorboat was used for monitoring activities. Water samples were collected at a depth of 3 feet using the MasterFlex® E/S® Portable Sampler fitted with 7-10 feet of tubing. Water samples were stored on ice in 1000 mL amber glass bottles. Water quality parameters were measured with a Hydrolab® Model MS5 mini datasonde. Water quality parameters included water temperature, electrical conductivity, salinity, dissolved oxygen, pH and turbidity. Parameters measured by the Hydrolab® were geographically referenced with GPS coordinates with a Motion F5t Tablet PC and ArcPad application. Data were captured electronically using Hydroplus® software specifically modified


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for the FAV Control Program. In the event of datasonde malfunction, a Hach® HQ-30 Dissolved Oxygen Meter was used as a backup to measure temperature and dissolved oxygen within monitoring sites. In addition, all data was hand written on datasheets as a backup copy. These datasheets were subsequently used for data quality control purposes. A digital camera was used to provide visual records of sampling locations and other notable factors that may affect water quality, species of concern, or the condition of the surrounding environment. Several monitoring sites were marked with flagging tape for quick identification for follow-up visits.

To avoid water sample contamination, boats used for environmental monitoring were never used for herbicide applications. Monitoring boats were also periodically washed. To ensure that water quality data is reliable, Hydrolabs® and Hach® DO meters were calibrated on a regular basis based on the manufacturer’s requirements.

MONITORING SITE SELECTION Environmental monitoring sites were selected based on requirements listed under the NPDES permit and Biological Opinions. The SWRCB Statewide General NPDES Permit requires that dischargers monitor a certain proportion of sites based on the total number of treated sites. DBW monitors a minimum of six application events for each active ingredient in each environmental setting (flowing water and non-flowing water) per year. Since DBW does not conduct herbicide applications in non-flowing water and tidal and riverine water body types are considered flowing water, all monitoring took place only in the “flowing water” environmental setting category. In 2016, a total of 16 sites within the Delta, San Joaquin River and Merced River were designated as monitoring sites (Table 3). Locations of the sites monitored in 2016 are mapped in Appendix A, Figure A-1. Representative monitoring occurred in sites with varying degrees of habitat for the following species (Table 4): giant garter snake (T. gigas), delta smelt (H. transpacificus), and valley elderberry longhorn beetle (VELB) (D. californicus dimorphus). Giant garter snake habitat has been rated as low, medium or high, while VELB and Delta smelt habitat are classified as being absent or present based on the known distribution of Delta smelt and the known locations of valley elderberry shrubs in the project area.

RESIDUE SAMPLING Water sampling occurs on the same day of herbicide application, in addition to follow-up sampling at the same locations within a week after treatment. All sampling stations at representative locations are identified as “A”, “B”, and “C”. Sampling station “A” represents the treatment area where FAV species were treated. Sampling station “B” represents receiving water that is downstream from the treatment area. Sampling station “C” represents a control site that is sampled before herbicide treatment, typically upstream of the treatment area. Sampling times are identified as “1”, “2”, and “3”. Sampling time “1” indicates pre-treatment. Sampling time “2” indicates immediately post-treatment. Sampling time “3” indicates within seven days after treatment. Thus, sample 1A is taken before a treatment, within the treatment area. Likewise, sample 3C is taken within one week after treatment, upstream of the treatment area (i.e. control site). All water quality monitoring followed the NDPES Annual Monitoring Protocol as outlined in the APAP.


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Table 3. 2016 FAV Monitoring Sites

Site # Location Water Body Type Herbicide and Adjuvant

6 French Camp Slough Tidal Imazamox/Agridex

9 Burns Cutoff Tidal Penoxsulam/Agridex

17b San Joaquin River Tidal 2,4-D/Agridex

19b San Joaquin River Tidal 2,4-D/Agridex

26 Fourteen Mile Slough Tidal Penoxsulam/Agridex

28 Fourteen Mile Slough Tidal Imazamox/Agridex

28 Fourteen Mile Slough Tidal Penoxsulam/Agridex

33 Disappointment Slough Tidal Glyphosate/Agridex

42 Connection Slough Tidal 2,4-D/Agridex

68 Middle River Tidal Glyphosate/Agridex

99b Old River Tidal 2,4-D/Agridex

103a Old River Tidal 2,4-D/Agridex

104b Old River Tidal 2,4-D/Agridex

311 San Joaquin River Riverine Imazamox/Agridex

313 San Joaquin River

Riverine Imazamox/Agridex

519 Merced River (Gallo Pond) Riverine Imazamox/Agridex

Table 4. 2016 FAV Monitoring Sites and Habitat Quality

Site # Location GGS Habitat Quality Smelt Habitat VELB Habitat

6 French Camp Slough Low-Moderate to Moderate-High

Absent Present

9 Burns Cutoff Moderate-High Absent Present

17b San Joaquin River Low to Moderate-High Present Absent

19b San Joaquin River Low to High Present Absent

26 Fourteen Mile Slough Low to Low-Moderate Absent Absent

28 Fourteen Mile Slough High Absent Present

28 Fourteen Mile Slough High Absent Present

33 Disappointment Slough Low to Moderate-High Absent Absent

42 Connection Slough Low Present Absent

68 Middle River No-habitat to Moderate-

High Present Absent

99b Old River Low-Moderate to Moderate-High

Present Absent

103a Old River Low to Low-Moderate Present Absent

104b Old River Moderate Present Absent

311 San Joaquin River Low-Moderate Absent Absent

313 San Joaquin River

Low-Moderate Absent Absent

519 Merced River (Gallo Pond) Low to Low-Moderate Absent Present


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4.2.3 Contract Laboratory Standard Operating Procedures

The analytical methods used by contract laboratories are published in the EPA Test Methods for Evaluating Solid Waste Physical/Chemical SW 846 or EPA Method for Chemical Analysis of Water and Waste. Analysis of water samples was conducted by the California Department of Food and Agriculture, Center for Analytical Chemistry (CDFA-CAC). The method used to analyze 2,4-D in surface water is gas chromatography/mass spectrometry (GC/MS). Analysis of glyphosate in surface water was done by high performance liquid chromatography (HPLC). Analysis of imazamox and penoxsulam was done by HPLC-MS. For the 2,4-D GC/MS analysis, a linear calibration with options of using an average response factor or a linear regression is specified. An initial five-point calibration curve is completed, where the low-level standard concentration is less than or equal to the analyte quanitation limits. The limit of quantitation (LOQ) for this analysis is 0.1 parts per billion (ppb). Glyphosate samples undergo liquid chromatographic analysis with a standard 5 point calibration curve. The LOQ for glyphosate analysis is 20 ppb. The Agridex and Competitor analysis is run with a standard 3 point calibration curve with an LOQ of 100 ppb. Imazamox and penoxsulam analyses were run with a 4 point calibration curve with an LOQ of 10 ppb. The 2,4-D results are also compared to percent recovery of the surrogate chemical 3,4-D to ensure accuracy of results. There are no comparable surrogates for glyphosate, Agridex, imazamox or penoxsulam at this time.

ANALYTICAL TESTING VALIDATION DBW used several methods to validate results found by contracting laboratories. These methods include collecting split (duplicate) water samples, field blanks and equipment blanks. An equipment blank sample (de-ionized water collected using the sampling device) was collected at every sampling event to detect potential contamination from sampling equipment.


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5 MONITORING RESULTS AND DISCUSSION

5.1 Threatened and Endangered Species The USFWS have established incidental take for ESA listed species and outlined terms and conditions necessary to minimize the impact of incidental take on threatened and endangered species. No incidental take of threatened or endangered species occurred in the 2016 season. Since NMFS concurs with USDA-ARS and DBW’s determination that the proposed FAV Control Program is not likely to adversely affect federally listed salmonids or green sturgeon, or their habitat, there is no incidental take provided by NMFS in implementing the FAV Control Program.

5.2 Infestation and Herbicide Application In 2016, the FAV Control Program conducted a total of 1,220 herbicide applications within 224 sites of the project area (Figures A-4 to Figure A-9 in Appendix A, and Appendix C). The treated sites encompassed most of the Delta, in addition to the San Joaquin River, Tuolumne River, Merced River and Salt Slough. There were several locations in the Delta and tributaries that were identified to having high FAV infestations and were considered high priority areas. These sites included the Tuolumne River, reaches of the San Joaquin River upstream of Mossdale, Stockton area waterways (Fourteen Mile Slough and the Deep Water Ship Channel), Disappointment Slough, Snodgrass Slough, Lost Slough, Sycamore Slough, Sandmound Slough and reaches Old and Middle Rivers in the South Delta. Herbicide treatments were effective in stopping growth and killing FAV. Observations of herbicide symptoms such as wilting, yellowing and browning were observed from all treatments. It appeared that FAV was better controlled in 2016 as there were observed decreases in the amount of FAV biomass present in Delta waterways. Although there were some reported problems with water primrose in waterways surrounding Bethel Island (Sandmound Slough and Taylor Slough), reports (emails and phone calls) regarding impacts of FAV to navigation and/or water operations were down this year compared to 2015. NASA Landsat imagery showed that the “total acreage of FAV detected in Delta waterways on November 2 [2016] decreased by about 35% compared to the acreage detected by Landsat imagery in mid-September 2016 mainly due to lower biomass density detected on Sherman Lake, the Old River, San Joaquin River, Big Break, and Middle River sections” (Chris Potter, pers. comm). Starting FAV herbicide treatments early in the season, increased staffing by DBW, better inter-agency coordination (local, state and federal) and natural influences of temperatures and increased flow from rains are all possible factors as to why FAV conditions improved in 2016.

5.2.1 Summary of Herbicide Use Each crew completed a daily treatment log to record herbicide treatment activities. The 2016 FAV daily log information can be found in Appendix B, Tables B-1 to B-9. Herbicide applications were made only when dissolved oxygen (DO) levels were either above the Basin Plan limit adopted by the Central Valley Regional Water Quality Control Board or below 3.0 mg/L. No applications were made if DO concentrations were between 3.0 mg/L and the Basin Plan limits (5 mg/L to 8 mg/L, by location). The herbicide treatment season began on March 10, 2016 and continued to November 30, 2016. Herbicide applications utilized glyphosate, 2,4-D, imazamox, and penoxsulam with the adjuvant Agridex. To minimize potential negative effects to salmon and steelhead, DBW and


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USDA-ARS included specific timing for 2,4-D applications as a part of the proposed project. The proposed time frame for 2,4-D applications is consistent with the 2011 NMFS Biological Opinion for EPA registration of 2,4-D (for Pacific Salmonids), which limits 2,4-D applications from June 15 through September 15 within the legal Delta, and from July 15 through August 15 in the San Joaquin River (southern sites). The time to symptom development in FAV treated with glyphosate, imazamox or penoxsulam ranged from 1 to 3 weeks. Visible effects were gradual wilting and yellowing of the plants which eventually advanced to complete browning. For FAV treated with 2,4-D, the time to symptom development was faster, with wilting and chlorosis of the plants being observed as early as two days after treatment. Observations of herbicide symptoms such as wilting, yellowing and browning were observed from all treatments. However, as temperatures decreased during the fall months, herbicide symptoms were slower to appear due to decreased plant growth rates, which caused a decrease in herbicide uptake and translocation rates. In some cases, treated plants remained floating for a significant amount of time, but most decomposing plants eventually sank in to the water column. In 2016, the FAV Control Program used 3,101.31 gallons of glyphosate, 929.30 gallons of 2,4-D, 3.71 gallons of imazamox, 0.22 gallons of penoxsulam, and 1,995.99 gallons of Agridex to effectively treat a total of 4,296.31 acres of FAV in the Delta and its tributaries (Table 5, Figures 1 –3, and Appendix A, Figures A-8 and A-9). The USFWS Biological Opinion for the Water Hyacinth Control Program (WHCP) states, “From years 2014 to 2017 DBW may treat up to 3,500 acres of water hyacinth within the 350 treatment sites.” In November, DBW expected to exceed the 3,500 acre limit for water hyacinth and submitted a request in partnership with USDA-ARS, to the USFWS and NMFS for a change in action for the WHCP. The change in action requested “to treat up to 500 additional acres of water hyacinth from November 16 to November 30, 2016, for a maximum of 4,000 treament acres in the Delta and its tributaries in 2016”. The USFWS reviewed the request and approved the addition of up to 500 acres to the total treated acres under the Biological Opinion. NMFS reviewed the request and concurred that “the requested change in action is not likely to expose listed species, their designated critical habitat and Essential Fish Habitat to glyphosate levels that may affect the species and their habitat beyond those that were previously considered in the informal consultation that was conducted for the WHCP.” By combining the 1,000 acres allowed annually for the SCP, the FAV Control Program essentially had a total of 5,000 acres alloted for herbicide treatment in 2016. Primarily due to the loss of one month for herbicide applications (weather such as lightning and wind), DBW was not able to treat the entire 5,000 acres designated for 2016 treatments. The total acreage of FAV each year between 1990 and 2016 (Figure 4) varies since the number of acres treated in a given year can reflect the magnitude of infestation; however, other factors can also affect the amount of treatment that occurs (treatment start dates, regulatory restrictions, local water conditions, weather, staff levels, etc.). Water hyacinth was not treated in 2000 as the control program was not implemented in response to legal action from Delta Keepers, where they claimed that DBW should obtain an NPDES permit under the 9th Circuit Court’s Headwaters Inc. v. Talent Irrigation District decision. Other noteworthy events include the additions of South American Spongeplant in 2013 and Uruguay water primrose in 2016 to the FAV Control Program.


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Table 5. 2016 FAV Herbicide Use and Acreage Treated by Month

Month 2,4-D Glyphosate Imazamox Penoxsulam Agridex Competitor

gallons acres gallons acres ounces acres ounces acres gallons gallons

MARCH 0 0 123.50 142.00 0 0 0 0 66.25 0

APRIL 0 0 163.55 181.00 0 0 0 0 78.65 0

MAY 0 0 233.54 260.65 2.40 9.60 0 0 117.60 0

JUNE 62.75 62.75 382.21 408.41 0 0 0 0 216.83 0

JULY 284.05 284.05 301.05 322.67 0 0 0 0 297.91 0

AUGUST 368.25 368.25 425.96 458.81 0 0 0.22 4.96 398.59 0

SEPTEMBER 214.25 214.25 468.59 502.45 0.50 2.00 0 0 329.76 0

OCTOBER 0 0 434.35 464.00 0.81 3.25 0 0 209.42 0

NOVEMBER 0 0 568.56 607.21 0 0 0 0 280.98 0

Total 929.30 929.30 3101.31 3347.20 3.71 14.85 0.22 4.96 1995.99 0

Figure 1. 2016 FAV Herbicide Use


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Figure 2. 2016 FAV Acreage Treated Per Herbicide

Figure 3. Herbicide Use by Year 2010 to 2016


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Figure 4.Total FAV Acres Chemically Treated by Year, 1990-2016

5.3 Monitoring Data and Laboratory Results

In 2016, a total of 16 sites within the Delta, San Joaquin River and Merced River were selected as monitoring sites (Table 3 and Figure A-1, Appendix A). For site selection criteria please refer to “Monitoring Site Selection” on page 20. Field monitoring data and lab results collected in compliance with the NPDES permit and BOs are summarized in Appendix D. Figures and tables found within Appendix D document the sample locations, chemical residues and water quality data for these 16 monitoring sites. Maps of monitoring sites have points and polygons color coded by the type of herbicide used: red = 2,4D, yellow = glyphosate, green = imazamox, orange = penoxsulam. The NPDES permit (General Permit No. CAG990005, Water Quality Order No. 2013-0002-DWQ), that became effective on December 1, 2013, contains sampling requirements that are materially less than what has been historically measured, in terms of frequency of measurement. To ensure that the FAV Control Program maintains environmental quality measures and meet federal Endangered Species Act requirements, and that monitoring provides independent statistical validity, DBW aims to maintain a more thorough monitoring plan as resources will allow.

5.3.1 Dissolved Oxygen, Turbidity and pH When conducting water quality monitoring in site 519 (Merced River, Gallo Pond) on May 18 there were occurrences where the DO concentrations were below the basin plan limit of 8 mg/L.


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Prior to herbicide treatment, the DO was 4.11 mg/L upstream of the treatment area and 4.63 mg/L within the treatment area. Immediately after treatment, the DO was 4.51 mg/L downflow of the treatment area. DO measurements taken at one week post-treatment in the monitoring site on May 23 indicated that DO levels increased in all three sample locations. DO concentrations upstream of the treatment area returned to a level above the basin plan limit (8.82 mg/L). However, the DO within and downstream of the treatment area remained below the basin plan limit at 6.81 mg/L and 6.07 and mg/L, respectively. All fish passage protocols were followed and there were no observations of injured or impacted wildlife during follow-up visits. All other DO levels measured during NPDES monitoring and sampling efforts in 2016 were between 5.00 mg/L and 12.68 mg/L.

As per Basin Plan standards for turbidity, waters shall be free of changes in turbidity that cause nuisance or adversely affect beneficial uses. Increases in turbidity attributable to controllable water quality factors shall not exceed the following limits listed in Section 3.1.2. The average of the turbidity measurements taken at “A” and “C” locations on the sampling day in question will constitute an average natural turbidity against which the receiving water (“B” location) measurements will be compared. There were 15 occasions in 12 sites, where turbidity levels exceeded Basin Plan limits (i.e. increased greater than 20%). Eight of these exceedances occurred on the day of herbicide application. Five of these cases the turbidity levels were again within the basin limits during follow up sampling within 7 days after the herbicide treatment. Seven of the turbidity exceedances were measured during post-treatment sampling within 7 days after the treatment. Increased turbidity may have been caused by natural waterway characteristics or propeller wash from the sampling boat. If the FAV Program was responsible for the turbidity increases, the effects were expected to be temporary due to the tidal nature of the Delta, varying hydrodynamics and periodic mixing of the water column. There were no injured or impacted species of concern observed during post-treatment follow-up monitoring. For all monitoring sites within the Delta, turbidity readings were between 0.3 and 133 NTUs. Turbidity in monitoring sites in the upper San Joaquin River (Stanislaus County) and in the Merced River ranged from 0.5 to 19.4 NTUs.

The Basin Plan Limit for pH shall not cause the ambient pH in the receiving water to fall below 6.5 or exceed 8.5. During 2016, there were two treatment sites which had pH levels that exceeded the basin plan limit of 8.5. In site 28, the pre-treatment pH, located upflow of the treatment area, was 8.67 and the pH inside the treatment area was 8.51. The pH downstream of the treatment area after a penoxsulam treatment was 8.51. Prior to treatment in site 68 (Middle River) the pH was 8.62 at upflow of the treatment area. When pH was measured one week post-treatment, the pH was above the 8.5 limit upflow of the treatment area (8.71 mg/L), within the treatment area (9.18 mg/L), and downflow of the treatment area (9.01 mg/L). Since the pre-treatment pH measured in the control sampling location (100 feet upflow) for both site 28 and 68 was also greater than 8.5, it suggests that raised pH levels already existed in the surrounding area prior to herbicide applications. Elevated pH levels were likely a result from other environmental factors and not necessarily a result of herbicide application activity. All other pH levels in receiving waters of the other monitoring sites complied with basin plan limits and ranged between 6.90 and 8.48.

5.3.2 Herbicide Residue Concentrations Maximum residue limits are based on EPA municipal drinking water standards. Herbicide residue shall not exceed the following concentrations in receiving waters (Table 6). The NPDES General Permit does not have receiving water limitations for imazamox or penoxsulam.


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However, it requires data collection for receiving water monitoring, which will provide information on whether the use of imazamox and penoxsulam has water quality impacts.

Table 6. Receiving Water Limits for FAV Herbicides

Herbicide Active Ingredient Maximum Concentration

2,4-D 70 ppb

Glyphosate 700 ppb

Imazamox No receiving water limit

Penoxsulam No receiving water limit

During 2016, all herbicide (and adjuvant) residue concentrations at receiving water locations were either not detected or were below receiving water limits as specified in the NPDES permit (Appendix D). For all glyphosate, imazamox, penoxsulam water samples, herbicide residues were not detected. Additionally, there were no Agridex residues detected in receiving waters. Residue concentrations for 2,4-D water samples were either not detected or ranged between 0.103 ppb to 1.78 ppb.

5.3.3 Aquatic Pesticide Application Plan Effectiveness

The Aquatic Pesticide Application Plan (APAP) describes aquatic pesticides, adjuvants and application methods used for the FAV Control Program. The selected herbicide and adjuvants were effective on water hyacinth and spongeplant as described in Section 5.2 above. Herbicide application methods and BMPs were effective in maintaining herbicide residues in receiving water below the maximum concentration limits. In addition, all reporting requirements described in the APAP such as providing a Pest Control Recommendation (PCR), Notice of Intent (NOI) and public notification, were met. NOI’s were provided to County Agricultural Commissioner’s at least 24 hours before herbicide applications were made. The NOI included descriptions of treatment locations and application rates for restricted use materials such as 2,4-D, in addition to all other herbicides used by the FAV Program. To improve public notifications, DBW developed a new outreach tool in the form of a weekly email notification, available to anyone who subscribes to the distribution list. Updates provided information on planned treatment areas, facts, and figures on the 2016 treatments.

5.4 Alternative Control Methods and Special Studies

5.4.1 Non-Chemical Control

Handpicking

Manual removal (handpicking) methods were implemented as part of the FAV integrated pest management approach. Handpicking of water hyacinth occurred in and around Willow Park Marina in January 2016. Water hyacinth was successfully cleared from the docks and boat slips allowing boat access for berthers and courtesy dock patrons. The Fresno County Department of Agriculture surveyed for water hyacinth in the San Joaquin River (sites 900-929) and found that chemical control was not warranted. Instead, the small amounts of water hyacinth were controlled my handpicking. In July, a landlocked pond alongside the Kings River (Whispering Waters) in Minkler, CA was surveyed and found to have


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10 hyacinth plants which were hand pulled. In a half mile stretch in sites 927 and 928, they removed 200 pounds of water hyacinth and in a two mile stretch in sites 925 and 926, 50 pounds of water hyacinth were removed. In August, the San Joaquin River was surveyed again and 50 pounds of scattered water hyacinth were hand removed in sites 927 and 928 from Lost Lake to Fort Washington. FAV surveys were discontinued in September due to staffing and low water levels.

Mechanical Removal Through consultations with USFWS and NMFS, DBW proposed to utilize a calendar-based schedule for FAV activities from 2013 to 2017 which included the use of mechanical removal of FAV from July to April except May and June. Severe infestations of FAV in the Stockton Waterfront during late-April warranted mechanical control of FAV to immediately clear the waterway. As a result, the USDA-ARS in partnership with DBW requested a one-time change in action to mechanically control water hyacinth only in McLeod Lake of the Stockton Waterfront during May and June 2016. NMFS concluded that “the requested change in action is not likely to expose listed species and their designated critical habitats, and EFH to effects beyond those that were previously considered in the informal consultation”. NMFS and USFWS approved mechanical harvesting during May and June in Stockton, provided that biological monitors were onboard every monitoring vessel to identify if listed species were present. Mechanical control of FAV was also conducted under a Streambed Alteration Agreement (or Routine Maintenance Agreement, RMA) between DBW and CDFW (Notification No. 1600-2015-0132-R3). The Agreement became effective October 23, 2015 and is valid through December 31, 2019 and pertains only to the physical and mechanical removal of FAV. The RMA contains avoidance and minimization measures for fish and wildlife species of concern. Examples of these species include giant garter snake, delta smelt, longfin smelt, Swainson’s hawk, burrowing owl and western pond turtle. Before any work can commence, Environmental Scientists conduct biological surveys in the project area to make sure that there are no species of concern. In addition to biological surveys, a biological monitor must be on site to assure that no species of concern are being or will be affected by the FAV removal operation. Also, DBW provides environmental awareness training to project crews. Under a 4-year contract with the firm, Aquatic Environments, Inc. and their subcontractors, Clean Lakes, Inc. and Waterworks Industries, Inc., DBW conducted mechanical harvesting of FAV in several locations in the Delta that were identified as being a nursery site or having high infestations of water hyacinth, spongeplant and/or water primrose. This year’s projects focused on the Stockton Deep Water Channel from Weber Point to Buckley Cove, Stockton Waterfront, Calaveras River, Whiskey Slough, a section of Old River in the South Delta, Snodgrass Slough, Sycamore Slough and Seven Mile Slough (Table 7 and Figure A-10, Appendix A). Mechanical removal utilized a combination of harvesters, transport barges, excavators, and dump trucks. DBW was able to conduct mechanical harvesting almost continuously throughout the year (Figure 5). Approximately 89,227 cubic yards or roughly 55 acres of FAV were removed by mechanical means in the aforementioned sites between January 4, 2016 and December 30, 2016.


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Table 7. 2016 FAV Sites Controlled by Mechanical Harvesting

Site(s) Location Harvesting Date(s) FAV CYs Removed

FAV Acres Removed

8 and 10 Stockton Deep Water Channel, Port and Waterfront, Calaveras

River

Jan 4 - Feb 10, Mar 25 - Apr 30, June 1- 13

17,805 11.04

20 Seven Mile Slough Sept 16 - Dec 30 33,125 20.53

61 and 62 Whiskey Slough Jan 24 – Jan 29 5,700 3.53

77 Old River, West Side Irrigation

District Feb 10 - Mar 29 13,722 8.51

203 Sycamore Slough July 25 - Aug 23 12,800 7.93

216 Snodgrass Slough Apr 6 – Apr 29 6,075 3.77

Figure 5. Cubic Yards of FAV Removed by Month

For each harvesting project, the collected FAV was temporarily stockpiled on the water side of the banks or levees before being further removed by an excavator. To prevent possible disturbance to the levee bank and minimize erosion from water runoff from FAV loads, plastic liners, straw wattles, and/or plywood were placed on the bank and levee where the harvester and/or excavator stockpiled water hyacinth. The loads of FAV were also allowed to drain before moving the material onshore. Once excess water was drained, plant material was removed with an excavator and moved to a dump truck or into a dumpster, and taken to an approved spoils site. DBW coordinated and collaborated with various land owners/managers to secure right-of-entry for harvesting operations and use of land as a spoils area. These parties included The Port of Stockton, City of Stockton, Whiskey Slough Marina, West Side Irrigation District, the Gold Fields District of CA State Parks, The Nature Conservancy, and Reclamation District 1601.


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Herding In past years, DBW crews used boats to herd (push) large mats of water hyacinth out of a site or towards an awaiting excavator or conveyor for removal. This year, DBW crews did not conduct herding of FAV.

5.4.2 Toxicological Fishery Impact Study To meet the terms and conditions of the USFWS Biological Opinions, DBW contracted with the University of California, Davis (UCD) to conduct a multi-year toxicological study, using delta smelt (Hypomesus transpacificus), for herbicides and adjuvants used in the FAV and Submersed Aquatic Vegetation (SAV) control programs (WHCP, SCP, and Egeria densa Control Program). Program herbicides and adjuvants for toxicity evaluation included fluridone, 2,4-D, glyphosate, penoxsulam, imazamox, Agridex, and Competitor. To ensure that delta smelt in the San Francisco Estuary and Sacramento-San Joaquin Delta are not directly affected by program herbicides and adjuvants the USFWS has requested that DBW assess their effects through a series of acute (96 hour survival) and chronic (growth and reproduction) toxicity tests on early life stages of delta smelt (eggs and newly hatched larvae). Additionally, both an endocrine disruption and a food web investigation were conducted in which the objective was to evaluate toxic (lethal and sublethal) effects of program herbicides and adjuvants on one copepod species (Eurytemora affinis) and one diatom species (Thalassiosira pseudonana). In 2014, UCD completed toxicity testing with early life-stage delta smelt (embryos and larvae) for imazamox, penoxsulam, and their mixture with Agridex. Toxicity testing included range finder exposures, definitive LC50 tests, and mixture-interaction analyses. Survival, hatching success, and sublethal responses (i.e. weight, condition factor, oil globule area, yolk + oil globule area, and yolk perimeter) of delta smelt embryos and larvae were evaluated. Initial findings indicate that the environmental risks of imazamox and penoxsulam to delta smelt are very low, several magnitudes below the concentration used by the FAV and SAV control programs. In 2016, UCD completed further herbicide toxicity comparisons to evaluate effects of glyphosate, 2,4-D, fluridone and a mixture of imazamox + Competitor on delta smelt embryos and early stage larvae. In addition, UCD conducted further studies to evaluate the toxicity of penoxsulam, imazamox, Agridex and their mixtures, via 96-hr assays to the calanoid copepod (E. affinis) survival as a part of the food web investigation. Complete results of all contracted work tasks will be presented in a final report which is expected in summer of 2017.

5.4.3 Delta Regional Areawide Aquatic Weed Project

The USDA-ARS Delta Regional Areawide Aquatic Weed Project (DRAAWP) was initiated in 2014 to increase development and implementation of invasive aquatic plant assessment, management, and decision support tools to improve Delta-wide integrated management of multiple aquatic and riparian weeds and associated pests (i.e. mosquitos) of non-crop areas. The Project’s purpose is to bring local, state and federal agencies together for a common mission to achieve aquatic and riparian weed control that minimizes inputs and impacts while maximizing ecological and economic benefits. One of the goals of the Area-Wide Project is to demonstrate how to reduce aquatic weed populations to low levels by combining strategic herbicide applications with biological control agent releases. Other objectives include: 1) development of weed growth models, 2) integration of remote sensing and modeling tools to track weed distributions, 3) assessment of control efficacy, and 4) assessment of target and


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non-target effects of control operations on aquatic weeds, mosquitos, and other organisms. DBW’s role and objectives for the Area-Wide Project includes researching enhanced weed control methods, assessment of aquatic weed abundance, diversity and concentration, and enhanced nutrient and pesticide monitoring. Refer to Appendix E (page 104) for DBW’s 2016 Progress Report.


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6 ACKNOWLEDGEMENTS The California State Parks Division of Boating and Waterways would like to thank the following entities for their cooperation and collaboration on invasive aquatic weed management in the Sacramento-San Joaquin Delta:

California Department of Fish and Wildlife California Department of Food and Agriculture California Department of Food and Agriculture – Center for Analytical Chemistry California Department of Water Resources City of Stockton Contra Costa Water District County Agricultural Commissioners County Sheriffs County Vector Control Districts Delta Conservancy Delta Protection Commission Delta Stewardship Council National Aeronautics and Space Administration National Oceanic and Atmospheric Administration – National Marine Fisheries Service Paradise Point Marina Port of Stockton State Water Resources Control Board Sugar Barge Marina Turlock Irrigation District United States Bureau of Reclamation United States Department of Agriculture – Agricultural Research Service United States Fish and Wildlife Service University of California, Davis

The California State Parks Division of Boating and Waterways would especially like to thank:

Various Chambers of Commerce Stakeholders and Members of the Public Numerous Legislative Offices


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7 LITERATURE CITED

California Department of Parks and Recreation Division of Boating and Waterways. 2012. Water Hyacinth Control Program Biological Assessment. California Department of Parks and Recreation, Division of Boating and Waterways, Sacramento, CA. California Department of Parks and Recreation Division of Boating and Waterways. 2014. Spongeplant Control Program Biological Assessment. California Department of Parks and Recreation, Division of Boating and Waterways, Sacramento, CA. California Regional Water Quality Control Board. 1998. Fourth Edition of the Water Quality Control Plan (Basin Plan) for the Sacramento River and San Joaquin River Basins. California Regional Water Quality Control Board, Central Valley Region, Sacramento, CA.


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APPENDIX A

FAV Maps


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Figure A- 1. 2016 FAV Project Area and Monitoring Sites


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Figure A- 2. FAV Northern Sites

and USFWS Areas


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Figure A- 3. FAV Southern Sites

and USFWS Areas


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Figure A- 4. 2016 FAV Northern Treated Sites


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Figure A- 5. 2016 FAV Southern Treatment Sites


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Figure A- 6. 2016 Treatment Count

Northern Sites


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Figure A- 7. 2016 Treatment Count

Southern Sites


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Figure A- 8. 2016 Herbicide Use

Northern Sites


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Figure A- 9. 2016 Herbicide Use

Southern Sites


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Figure A- 10. 2016 FAV Mechanical

Harvesting Sites

Mechanical harvesters in Sycamore Slough


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APPENDIX B

2016 Herbicide Application Daily Logs

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Table B- 1. March 2016 Herbicide and Adjuvant Use

Date

Vessel

Identification Site ID County

Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

3/10/2016 3420 6 San Joaquin 13.80 14.20 800 1400 7.20 7.00 0.00 3.50 0.00 0.00 1.75 0.00 96 0.00 4.67 0.00 0.00 0-2

3/10/2016 8939 76 San Joaquin 15.90 15.90 800 1330 6.80 6.80 0.00 4.75 0.00 0.00 3.00 0.00 96 0.00 6.33 0.00 0.00 2-4

3/10/2016 9339 97 Contra Costa 14.90 15.30 930 1130 8.54 8.58 0.00 1.75 0.00 0.00 1.25 0.00 120 0.00 1.87 0.00 0.00 4-6

3/10/2016 9606 300 San Joaquin 15.30 16.10 750 1400 8.40 7.60 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

3/10/2016 9980 300 San Joaquin 15.10 15.80 830 1330 8.64 8.07 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

3/14/2016 3420 28 San Joaquin 13.80 14.20 800 1400 7.50 9.50 0.00 4.00 0.00 0.00 2.00 0.00 96 0.00 5.33 0.00 0.00 2-4

3/14/2016 8929 70 San Joaquin 14.00 14.60 900 1330 8.20 8.10 0.00 2.75 0.00 0.00 1.25 0.00 96 0.00 3.67 0.00 0.00 6-8

3/14/2016 9339 97 Contra Costa 14.90 15.30 930 1130 8.54 8.58 0.00 1.25 0.00 0.00 0.75 0.00 120 0.00 1.33 0.00 0.00 4-6

3/14/2016 9606 708 Stanislaus 15.70 16.50 830 1410 10.20 7.80 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 0-2

3/14/2016 9980 708 Stanislaus 13.60 14.80 900 1100 9.15 9.64 0.00 2.25 0.00 0.00 0.75 0.00 120 0.00 2.40 0.00 0.00 2-4

3/14/2016 9980 709 Stanislaus 14.80 16.10 1100 1300 9.64 9.87 0.00 2.75 0.00 0.00 1.25 0.00 120 0.00 2.93 0.00 0.00 2-4

3/14/2016 9980 710 Stanislaus 16.10 16.50 1300 1430 9.87 9.91 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 4-6

3/15/2016 3420 28 San Joaquin 13.80 13.90 800 1400 7.10 8.20 0.00 3.50 0.00 0.00 1.75 0.00 96 0.00 4.67 0.00 0.00 0-2

3/15/2016 8929 72 San Joaquin 14.10 16.30 900 1500 7.78 6.70 0.00 4.00 0.00 0.00 2.50 0.00 96 0.00 5.33 0.00 0.00 4-6

3/15/2016 9339 57 San Joaquin 14.00 15.40 945 1345 9.13 8.85 0.00 4.50 0.00 0.00 2.75 0.00 120 0.00 4.80 0.00 0.00 6-8

3/15/2016 9606 709 Stanislaus 13.70 14.50 830 1410 8.60 9.60 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 0-2

3/16/2016 9606 710 Stanislaus 14.10 14.70 820 1400 9.70 8.30 0.00 6.00 0.00 0.00 2.00 0.00 120 0.00 6.40 0.00 0.00 0-2

3/17/2016 3420 26 San Joaquin 14.20 14.50 800 1500 7.80 9.60 0.00 5.50 0.00 0.00 2.75 0.00 96 0.00 7.33 0.00 0.00 0-2

3/17/2016 9606 708 Stanislaus 14.70 14.90 830 1430 9.30 8.20 0.00 5.00 0.00 0.00 2.00 0.00 120 0.00 5.33 0.00 0.00 0-2

3/17/2016 9980 707 Stanislaus 15.00 15.80 1000 1230 9.50 9.22 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

3/17/2016 9980 708 Stanislaus 15.80 16.20 1230 1400 9.22 9.89 0.00 1.75 0.00 0.00 1.00 0.00 120 0.00 1.87 0.00 0.00 2-4

3/18/2016 9606 322 Stanislaus 14.60 16.10 800 1400 7.60 9.70 0.00 6.50 0.00 0.00 3.00 0.00 120 0.00 6.93 0.00 0.00 0-2

3/18/2016 9980 316 Stanislaus 16.00 15.70 930 1130 8.53 8.24 0.00 1.25 0.00 0.00 2.00 0.00 120 0.00 1.33 0.00 0.00 2-4

3/18/2016 9980 317 Stanislaus 15.70 16.30 1130 1230 8.24 8.43 0.00 0.50 0.00 0.00 2.25 0.00 120 0.00 0.53 0.00 0.00 4-6

3/18/2016 9980 318 Stanislaus 16.30 16.40 1230 1400 8.43 8.19 0.00 0.50 0.00 0.00 1.25 0.00 120 0.00 0.53 0.00 0.00 4-6

3/21/2016 9339 52 San Joaquin 16.30 16.70 945 1230 8.23 8.90 0.00 3.00 0.00 0.00 2.00 0.00 120 0.00 3.20 0.00 0.00 4-6

3/21/2016 9980 304 San Joaquin 17.00 17.20 800 1400 8.59 8.80 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 2-4

3/22/2016 3420 9 San Joaquin 14.80 15.20 900 1400 8.80 7.50 0.00 3.50 0.00 0.00 1.75 0.00 96 0.00 4.67 0.00 0.00 0-2

3/22/2016 9609 300 San Joaquin 17.50 17.90 1205 1400 8.70 9.10 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 2-4

3/22/2016 9609 301 San Joaquin 15.80 17.50 900 1200 7.60 8.70 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

3/22/2016 9980 303 San Joaquin 15.80 16.30 930 1400 7.87 7.44 0.00 5.75 0.00 0.00 3.25 0.00 120 0.00 6.13 0.00 0.00 4-6

3/23/2016 3420 10 San Joaquin 14.30 14.60 900 1000 10.10 9.50 0.00 0.50 0.00 0.00 0.25 0.00 96 0.00 0.67 0.00 0.00 4-6

3/23/2016 8835 74 San Joaquin 16.00 16.30 930 1230 5.90 6.10 0.00 3.00 0.00 0.00 1.50 0.00 96 0.00 4.00 0.00 0.00 4-6

3/24/2016 3420 36 San Joaquin 15.40 15.50 900 1400 8.50 7.20 0.00 3.50 0.00 0.00 1.75 0.00 96 0.00 4.67 0.00 0.00 0-2

3/24/2016 9980 313 Stanislaus 16.70 17.70 800 1400 8.13 8.35 0.00 5.75 0.00 0.00 2.25 0.00 120 0.00 6.13 0.00 0.00 2-4

0.00 123.50 0.00 0.00 66.25 0.00 0.00 142.00 0.00 0.00

- 59 -

Table B- 2. April 2016 Herbicide and Adjuvant Use

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

4/4/2016 3420 26 San Joaquin 18.20 18.70 900 1330 8.20 7.50 0.00 0.50 0.00 0.00 0.25 0.00 120 0.00 0.53 0.00 0.00 4-6

4/4/2016 9339 53 San Joaquin 19.10 19.80 930 1200 8.40 12.00 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 4-6

4/4/2016 9980 709 Stanislaus 17.50 19.60 900 1330 9.67 9.61 0.00 4.50 0.00 0.00 3.00 0.00 120 0.00 4.80 0.00 0.00 4-6

4/5/2016 3420 8 San Joaquin 18.10 18.40 845 1230 9.20 9.40 0.00 0.50 0.00 0.00 0.25 0.00 120 0.00 0.53 0.00 0.00 0-2

4/6/2016 3420 30 San Joaquin 18.50 18.80 830 1400 9.80 7.50 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 0-2

4/6/2016 9122 709 Stanislaus 19.60 19.80 920 1400 9.70 9.30 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 0-2

4/6/2016 9123 56 San Joaquin 18.30 18.90 930 1100 8.52 8.67 0.00 0.25 0.00 0.00 0.13 0.00 120 0.00 0.27 0.00 0.00 0-2

4/6/2016 9980 710 Stanislaus 17.80 21.90 900 1400 9.33 9.80 0.00 5.25 0.00 0.00 2.75 0.00 120 0.00 5.60 0.00 0.00 2-4

4/7/2016 3420 32 San Joaquin 18.30 18.40 700 1200 10.10 9.50 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

4/7/2016 8835 47 San Joaquin 19.50 19.60 1030 1300 6.50 7.20 0.00 2.50 0.00 0.00 1.75 0.00 96 0.00 3.33 0.00 0.00 6-8

4/7/2016 8835 49 San Joaquin 18.60 19.00 800 1000 6.05 7.50 0.00 1.50 0.00 0.00 1.00 0.00 96 0.00 2.00 0.00 0.00 2-4

4/7/2016 9122 48 San Joaquin 18.90 17.80 800 1300 7.30 9.10 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 0-2

4/7/2016 9980 303 San Joaquin 19.80 21.70 830 1430 11.60 10.85 0.00 6.75 0.00 0.00 2.75 0.00 120 0.00 7.20 0.00 0.00 2-4

4/11/2016 8929 74 San Joaquin 17.60 18.00 800 1330 6.40 7.10 0.00 9.00 0.00 0.00 5.00 0.00 96 0.00 12.00 0.00 0.00 0-2

4/11/2016 9122 74 San Joaquin 17.60 18.30 800 1315 6.30 7.10 0.00 6.50 0.00 0.00 3.50 0.00 120 0.00 6.93 0.00 0.00 0-2

4/11/2016 9123 66 San Joaquin 18.10 19.20 930 1330 7.99 8.32 0.00 4.50 0.00 0.00 1.75 0.00 120 0.00 4.80 0.00 0.00 0-2

4/12/2016 3420 36 San Joaquin 18.60 18.80 1000 1430 8.30 7.60 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

4/12/2016 9122 46 San Joaquin 17.60 18.20 730 1200 7.60 8.10 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

4/12/2016 9122 47 San Joaquin 18.10 18.30 1210 1420 8.20 8.30 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 4-6

4/12/2016 9123 12 San Joaquin 18.80 18.80 1245 1300 8.71 8.71 0.00 0.10 0.00 0.00 0.04 0.00 120 0.00 0.11 0.00 0.00 8-10

4/12/2016 9123 60 San Joaquin 18.30 18.80 1000 1245 8.32 8.71 0.00 2.40 0.00 0.00 0.96 0.00 120 0.00 2.56 0.00 0.00 6-8

4/13/2016 9122 6 San Joaquin 18.10 18.50 900 1430 7.60 9.70 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

4/13/2016 9980 300 San Joaquin 16.30 16.40 800 1000 9.38 9.36 0.00 2.25 0.00 0.00 1.00 0.00 120 0.00 2.40 0.00 0.00 4-6

4/13/2016 Merced 528 Merced 13.30 17.80 1100 1400 8.10 8.27 0.00 0.13 0.00 0.00 0.06 0.00 96 0.00 0.17 0.00 0.00 4-6

4/18/2016 3420 29 San Joaquin 18.20 18.50 800 1500 7.20 8.60 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 0-2

4/18/2016 8929 291 San Joaquin 20.00 20.20 830 1400 5.40 6.00 0.00 6.00 0.00 0.00 3.00 0.00 96 0.00 8.00 0.00 0.00 0-2

4/18/2016 9122 73 San Joaquin 19.90 20.20 1010 1400 7.50 8.40 0.00 3.00 0.00 0.00 1.00 0.00 120 0.00 3.20 0.00 0.00 0-2

4/18/2016 9122 74 San Joaquin 19.80 19.90 825 1000 7.40 7.50 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 0-2

4/18/2016 Merced 412 Merced 20.70 25.70 1130 1410 6.92 7.65 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 2-4

4/18/2016 Merced 413 Merced 20.10 20.70 840 1130 5.31 6.92 0.00 0.14 0.00 0.00 0.07 0.00 96 0.00 0.19 0.00 0.00 0-2

4/19/2016 3420 8 San Joaquin 18.30 18.60 800 1500 8.50 7.60 0.00 4.50 0.00 0.00 2.25 0.00 120 0.00 4.80 0.00 0.00 0-2

4/19/2016 8929 73 San Joaquin 21.50 20.30 1030 1330 7.50 6.80 0.00 2.50 0.00 0.00 1.50 0.00 120 0.00 2.67 0.00 0.00 0-2

4/19/2016 8929 79 Contra Costa 18.80 20.00 800 1000 8.37 7.00 0.00 3.00 0.00 0.00 2.00 0.00 120 0.00 3.20 0.00 0.00 0-2

4/19/2016 9122 77 San Joaquin 19.50 20.00 800 1400 9.30 7.40 0.00 6.00 0.00 0.00 2.00 0.00 120 0.00 6.40 0.00 0.00 0-2

4/19/2016 9123 67 San Joaquin 18.70 22.20 930 1400 8.33 8.11 0.00 5.00 0.00 0.00 1.25 0.00 120 0.00 5.33 0.00 0.00 0-2

4/19/2016 9980 300 San Joaquin 18.50 25.00 845 1230 9.67 13.16 0.00 5.00 0.00 0.00 2.75 0.00 120 0.00 5.33 0.00 0.00 0-2

4/19/2016 9980 302 San Joaquin 24.90 25.20 1245 1445 12.40 10.57 0.00 3.00 0.00 0.00 1.75 0.00 120 0.00 3.20 0.00 0.00 2-4

4/20/2016 3420 31 San Joaquin 18.50 18.70 830 1400 9.10 8.20 0.00 2.50 0.00 0.00 1.00 0.00 120 0.00 2.67 0.00 0.00 0-2

4/20/2016 8929 72 San Joaquin 19.30 20.70 800 1230 8.10 6.90 0.00 4.50 0.00 0.00 2.00 0.00 96 0.00 6.00 0.00 0.00 0-2

4/20/2016 9122 77 San Joaquin 18.70 19.10 800 1400 7.60 8.10 0.00 5.00 0.00 0.00 2.00 0.00 120 0.00 5.33 0.00 0.00 0-2

4/20/2016 9123 67 San Joaquin 19.50 23.10 930 1400 8.18 8.74 0.00 5.00 0.00 0.00 2.25 0.00 120 0.00 5.33 0.00 0.00 2-4

4/20/2016 9980 304 San Joaquin 20.20 24.70 830 1245 10.37 9.88 0.00 4.25 0.00 0.00 2.00 0.00 120 0.00 4.53 0.00 0.00 2-4

4/20/2016 Merced 410 Merced 20.60 24.20 1040 1420 5.55 5.88 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 2-4

4/20/2016 Merced 412 Merced 20.00 20.60 845 1040 5.93 5.55 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 2-4

4/21/2016 3420 31 San Joaquin 21.30 22.30 830 1530 8.70 7.20 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 0-2

4/21/2016 9123 65 San Joaquin 19.30 20.00 915 1100 8.71 8.55 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 2-4

4/21/2016 9980 304 San Joaquin 17.10 18.80 830 1115 10.31 9.86 0.00 2.75 0.00 0.00 1.25 0.00 120 0.00 2.93 0.00 0.00 2-4

4/21/2016 9980 306 San Joaquin 19.10 20.30 1130 1300 9.33 9.75 0.00 3.00 0.00 0.00 1.75 0.00 120 0.00 3.20 0.00 0.00 2-4

4/21/2016 9980 307 San Joaquin 20.30 22.20 1300 1445 9.75 9.48 0.00 1.75 0.00 0.00 0.75 0.00 120 0.00 1.87 0.00 0.00 2-4

- 60 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

4/21/2016 Merced 408 Merced 22.70 23.20 1320 1400 5.27 5.96 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 4-6

4/21/2016 Merced 409 Merced 19.80 22.70 900 1320 5.55 5.27 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 2-4

4/22/2016 Merced 408 Merced 19.90 20.40 825 1035 5.94 5.77 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 6-8

4/25/2016 Merced 528 Merced 12.90 18.80 920 1400 10.07 8.72 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 6-8

4/26/2016 Merced 404 Merced 19.00 19.40 1300 1400 8.68 9.90 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 6-8

4/26/2016 Merced 405 Merced 17.20 19.00 1050 1300 7.35 8.68 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 6-8

4/26/2016 Merced 407 Merced 16.06 17.20 940 1050 6.90 7.35 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 2-4

4/26/2016 Merced 408 Merced 16.30 16.60 900 940 6.61 6.90 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 2-4

4/27/2016 9980 710 Stanislaus 14.70 15.20 930 1245 9.71 9.83 0.00 3.00 0.00 0.00 1.25 0.00 120 0.00 3.20 0.00 0.00 2-4

4/27/2016 Merced 402 Merced 18.70 19.60 1100 1200 9.08 9.74 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 2-4

4/27/2016 Merced 403 Merced 17.20 18.70 800 1100 6.60 9.08 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 0-2

4/28/2016 9122 301 San Joaquin 19.50 19.80 1000 1330 7.40 8.10 0.00 3.00 0.00 0.00 1.00 0.00 120 0.00 3.20 0.00 0.00 2-4

4/28/2016 9980 303 San Joaquin 17.40 17.70 1000 1330 7.41 9.64 0.00 3.25 0.00 0.00 1.25 0.00 120 0.00 3.47 0.00 0.00 6-8

4/28/2016 Merced 500 Merced 17.40 18.50 1030 1200 7.80 8.84 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 8-10

4/28/2016 Merced 501 Merced 17.60 17.40 850 1030 8.12 7.80 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 4-6

4/29/2016 Merced 519 Merced 23.80 22.90 1230 1330 13.80 11.30 0.00 0.04 0.00 0.00 0.02 0.00 96 0.00 0.05 0.00 0.00 2-4

4/29/2016 Merced 526 Merced 14.60 16.10 830 1100 8.58 9.18 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 0-2

0.00 163.55 0.00 0.00 78.65 0.00 0.00 181.00 0.00 0.00

- 61 -

Table B- 3. May 2016 Herbicide and Adjuvant Use

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

5/2/2016 3420 8 San Joaquin 22.50 23.70 800 1430 9.20 7.90 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 2-4

5/2/2016 9123 92 Contra Costa 19.70 22.30 930 1230 8.36 8.77 0.00 3.00 0.00 0.00 1.75 0.00 120 0.00 3.20 0.00 0.00 0-2

5/2/2016 Merced 410 Merced 21.50 22.60 1200 1400 7.21 7.92 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 4-6

5/2/2016 Merced 411 Merced 18.50 21.50 910 1200 5.91 7.21 0.00 0.13 0.00 0.00 0.06 0.00 96 0.00 0.17 0.00 0.00 2-4

5/3/2016 9123 92 San Joaquin 19.30 20.80 930 1400 8.39 7.80 0.00 3.50 0.00 0.00 1.75 0.00 120 0.00 3.73 0.00 0.00 4-6

5/3/2016 9606 46 San Joaquin 18.50 18.90 830 1300 7.10 7.30 0.00 6.00 0.00 0.00 2.00 0.00 120 0.00 6.40 0.00 0.00 0-2

5/3/2016 Merced 412 Merced 23.40 23.00 1300 1405 6.48 7.06 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 2-4

5/3/2016 Merced 413 Merced 20.50 23.40 900 1300 5.59 6.48 0.00 0.13 0.00 0.00 0.06 0.00 96 0.00 0.17 0.00 0.00 0-2

5/4/2016 3420 37 San Joaquin 23.40 23.70 830 1130 8.60 7.20 0.00 0.50 0.00 0.00 0.25 0.00 120 0.00 0.53 0.00 0.00 6-8

5/4/2016 9123 54 San Joaquin 21.10 21.90 1030 1300 8.01 8.19 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 2-4

5/4/2016 9606 46 San Joaquin 17.90 18.60 800 1400 7.60 8.10 0.00 7.50 0.00 0.00 2.50 0.00 120 0.00 8.00 0.00 0.00 0-2

5/4/2016 9980 313 Stanislaus 20.90 22.40 930 1345 9.15 9.37 0.00 3.50 0.00 0.00 1.75 0.00 120 0.00 3.73 0.00 0.00 0-2

5/4/2016 Merced 501 Merced 21.60 23.10 1045 1330 7.04 8.44 0.00 0.13 0.00 0.00 0.07 0.00 96 0.00 0.17 0.00 0.00 2-4

5/4/2016 Merced 502 Merced 20.80 21.60 830 1000 7.37 7.04 0.00 0.11 0.00 0.00 0.05 0.00 96 0.00 0.15 0.00 0.00 2-4

5/5/2016 3420 8 San Joaquin 22.80 23.10 830 1200 8.00 8.60 0.00 3.25 0.00 0.00 1.50 0.00 120 0.00 3.47 0.00 0.00 4-6

5/5/2016 8835 49 San Joaquin 19.30 19.70 900 1200 2.75 2.89 0.00 3.00 0.00 0.00 1.50 0.00 96 0.00 4.00 0.00 0.00 4-6

5/5/2016 Merced 400 Merced 20.40 21.00 900 1200 8.61 9.66 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 0-2

5/5/2016 Merced 401 Merced 21.00 22.70 1200 1400 9.66 11.40 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 2-4

5/9/2016 3420 6 San Joaquin 23.50 23.90 800 1400 8.10 8.60 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 0-2

5/9/2016 8929 80 San Joaquin 20.20 20.70 1030 1430 8.70 6.30 0.00 7.00 0.00 0.00 4.00 0.00 96 0.00 9.33 0.00 0.00 6-8

5/9/2016 8929 83 San Joaquin 20.10 20.00 830 1030 7.80 6.90 0.00 3.00 0.00 0.00 2.00 0.00 96 0.00 4.00 0.00 0.00 6-8

5/9/2016 9123 33 San Joaquin 19.30 20.40 1100 1200 7.79 7.55 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 2-4

5/9/2016 9123 68 San Joaquin 18.30 19.20 900 1030 9.76 9.23 0.00 1.75 0.00 0.00 0.75 0.00 120 0.00 1.87 0.00 0.00 0-2

5/9/2016 9606 706 Stanislaus 18.70 18.90 900 1310 7.32 8.10 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 0-2

5/9/2016 9980 706 Stanislaus 18.70 19.10 900 1130 7.52 8.43 0.00 2.25 0.00 0.00 1.00 0.00 120 0.00 2.40 0.00 0.00 2-4

5/9/2016 9980 707 Stanislaus 19.10 18.80 1130 1400 8.93 9.21 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 2-4

5/9/2016 Merced 522 Merced 18.60 21.50 1200 1410 10.30 10.64 0.00 0.16 0.00 0.00 0.08 0.00 96 0.00 0.21 0.00 0.00 2-4

5/9/2016 Merced 523 Merced 15.80 18.60 900 1200 9.04 10.30 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 4-6

5/9/2016 Merced 524 Merced 16.10 15.80 815 900 8.50 9.04 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 4-6

5/10/2016 8929 80 San Joaquin 19.90 20.20 930 1500 8.08 7.77 0.00 10.00 0.00 0.00 4.25 0.00 96 0.00 13.33 0.00 0.00 2-4

5/10/2016 9123 68 San Joaquin 19.20 21.20 930 1230 10.20 9.97 0.00 3.75 0.00 0.00 1.25 0.00 120 0.00 4.00 0.00 0.00 4-6

5/10/2016 9606 47 San Joaquin 19.40 20.10 900 1315 7.30 8.70 0.00 4.50 0.00 0.00 1.50 0.00 120 0.00 4.80 0.00 0.00 4-6

5/10/2016 9980 708 Stanislaus 17.20 18.10 930 1245 10.34 10.19 0.00 3.75 0.00 0.00 1.75 0.00 120 0.00 4.00 0.00 0.00 2-4

5/10/2016 9980 709 Stanislaus 18.70 18.40 1245 1400 10.19 10.46 0.00 2.00 0.00 0.00 0.75 0.00 120 0.00 2.13 0.00 0.00 2-4

5/10/2016 Merced 520 Merced 19.30 21.40 1140 1400 8.79 10.40 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 4-6

5/10/2016 Merced 521 Merced 16.80 19.30 850 1140 8.38 8.79 0.00 0.14 0.00 0.00 0.07 0.00 96 0.00 0.19 0.00 0.00 2-4

5/11/2016 3420 13 San Joaquin 23.90 24.40 830 1230 9.60 8.40 0.00 4.75 0.00 0.00 2.25 0.00 120 0.00 5.07 0.00 0.00 4-6

5/11/2016 8929 80 San Joaquin 19.30 19.80 900 1230 8.10 7.80 0.00 3.50 0.00 0.00 2.00 0.00 96 0.00 4.67 0.00 0.00 4-6

5/11/2016 9123 83 San Joaquin 20.40 21.40 900 1100 7.94 7.64 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

5/11/2016 9980 713 Stanislaus 16.80 17.30 0 1345 10.65 10.73 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 2-4

5/11/2016 9980 714 Stanislaus 16.20 16.80 915 1215 11.20 10.65 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 2-4

5/11/2016 Merced 518 Merced 21.20 23.00 1130 1350 8.62 10.20 0.00 0.09 0.00 0.00 0.05 0.00 96 0.00 0.12 0.00 0.00 2-4

5/11/2016 Merced 519 Merced 18.80 21.20 815 1130 8.16 8.62 0.00 0.23 0.00 0.00 0.12 0.00 96 0.00 0.31 0.00 0.00 2-4

5/12/2016 3420 30 San Joaquin 24.50 24.60 1130 1500 9.70 9.70 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 2-4

5/12/2016 3420 31 San Joaquin 24.10 24.50 700 1100 9.40 9.30 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 2-4

5/12/2016 9123 56 San Joaquin 21.90 22.40 1130 1330 8.74 9.22 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 4-6

5/12/2016 9606 316 San Joaquin 19.50 20.10 900 1300 7.20 9.30 0.00 4.00 0.00 0.00 1.00 0.00 120 0.00 4.27 0.00 0.00 0-2

5/12/2016 Merced 515 Merced 22.90 24.40 1240 1340 9.13 9.45 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 0-2

5/12/2016 Merced 517 Merced 20.90 22.90 905 1200 8.18 9.13 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 2-4

- 62 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

5/12/2016 Merced 518 Merced 20.20 20.90 815 900 8.22 8.18 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 2-4

5/13/2016 Merced 514 Merced 22.50 23.30 1100 1320 8.16 9.78 0.00 0.09 0.00 0.00 0.05 0.00 96 0.00 0.12 0.00 0.00 4-6

5/13/2016 Merced 515 Merced 20.10 22.50 815 1100 8.02 8.16 0.00 0.19 0.00 0.00 0.09 0.00 96 0.00 0.25 0.00 0.00 2-4

5/16/2016 3420 8 San Joaquin 24.50 24.70 730 1400 10.30 9.80 0.00 7.00 0.00 0.00 3.50 0.00 120 0.00 7.47 0.00 0.00 4-6

5/17/2016 3420 8 San Joaquin 24.60 24.70 730 1400 8.40 7.30 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

5/17/2016 8929 74 San Joaquin 20.30 20.20 830 1130 7.80 6.70 0.00 4.25 0.00 0.00 2.50 0.00 96 0.00 5.67 0.00 0.00 6-8

5/17/2016 9980 300 San Joaquin 18.50 18.80 730 815 9.86 10.17 0.00 0.25 0.00 0.00 0.50 0.00 120 0.00 0.27 0.00 0.00 2-4

5/17/2016 9980 301 San Joaquin 18.80 19.10 830 1000 10.17 9.76 0.00 0.75 0.00 0.00 0.50 0.00 120 0.00 0.80 0.00 0.00 6-8

5/17/2016 Merced 512 Merced 24.30 24.90 1245 1430 9.50 9.84 0.00 0.13 0.00 0.00 0.60 0.00 96 0.00 0.17 0.00 0.00 4-6

5/17/2016 Merced 513 Merced 20.80 24.30 845 1245 8.23 9.50 0.00 0.11 0.00 0.00 0.05 0.00 96 0.00 0.15 0.00 0.00 4-6

5/18/2016 3420 12 San Joaquin 24.30 24.60 800 1400 9.10 8.40 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

5/18/2016 8929 76 San Joaquin 21.40 22.10 800 1430 6.21 7.40 0.00 9.50 0.00 0.00 5.50 0.00 96 0.00 12.67 0.00 0.00 4-6

5/18/2016 9123 52 San Joaquin 23.00 24.70 1030 1300 7.34 8.81 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

5/18/2016 9980 300 San Joaquin 18.60 20.10 800 1215 9.08 9.15 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

5/18/2016 9980 302 San Joaquin 20.10 22.40 1215 1400 9.15 8.49 0.00 2.25 0.00 0.00 1.00 0.00 120 0.00 2.40 0.00 0.00 4-6

5/18/2016 Merced 519 Merced 20.80 25.20 1110 1350 8.15 8.10 0.00 0.19 0.00 0.00 0.09 0.00 96 0.00 0.25 0.00 0.00 4-6

5/23/2016 3420 36 San Joaquin 24.70 24.50 1130 1400 8.60 8.20 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 4-6

5/23/2016 3420 38 San Joaquin 24.60 24.70 930 1100 9.50 8.90 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 2-4

5/23/2016 8835 76 San Joaquin 17.50 17.90 800 1200 8.04 7.64 0.00 0.00 1.00 0.00 2.00 0.00 32 0.00 0.00 4.00 0.00 6-8

5/23/2016 9123 56 San Joaquin 20.50 23.00 1100 1430 8.32 7.63 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 2-4

5/23/2016 9980 700 Stanislaus 20.00 21.40 900 1400 8.43 9.65 0.00 4.25 0.00 0.00 1.50 0.00 120 0.00 4.53 0.00 0.00 2-4

5/24/2016 3548 37 San Joaquin 24.20 24.70 800 1330 9.60 8.40 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 2-4

5/24/2016 8929 74 San Joaquin 16.70 17.00 800 1400 6.70 8.10 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 4-6

5/24/2016 9980 701 Stanislaus 20.30 20.70 900 1130 8.55 9.27 0.00 4.75 0.00 0.00 1.75 0.00 120 0.00 5.07 0.00 0.00 2-4

5/24/2016 9980 702 Stanislaus 20.70 22.30 1200 1400 9.27 9.89 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 4-6

5/25/2016 3420 37 San Joaquin 25.10 25.30 800 1300 9.20 8.60 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 4-6

5/25/2016 Merced 511 Merced 18.80 23.30 825 1400 8.10 9.12 0.00 0.13 0.00 0.00 0.06 0.00 96 0.00 0.17 0.00 0.00 4-6

5/26/2016 3420 6 San Joaquin 23.60 23.80 800 1100 8.50 8.10 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 0-2

5/26/2016 3420 8 San Joaquin 22.10 22.50 1200 1430 7.10 7.40 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

5/26/2016 8929 74 San Joaquin 17.80 18.00 800 1430 7.30 7.80 0.00 10.00 1.00 0.00 7.50 0.00 120 0.00 10.67 4.00 0.00 6-8

5/26/2016 9123 53 San Joaquin 21.00 24.20 1000 1300 6.86 6.89 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 0-2

5/26/2016 9980 74 San Joaquin 17.80 18.40 800 1430 7.30 7.46 0.00 7.50 0.40 0.00 3.75 0.00 120 0.00 8.00 1.60 0.00 2-4

5/26/2016 Merced 509 Merced 20.70 23.20 1100 1350 8.25 8.88 0.00 0.30 0.00 0.00 0.20 0.00 96 0.00 0.40 0.00 0.00 4-6

5/26/2016 Merced 510 Merced 20.50 20.70 850 1100 7.55 8.25 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 2-4

5/27/2016 Merced 508 Merced 22.00 26.50 900 1350 7.42 8.04 0.00 0.28 0.00 0.00 0.14 0.00 96 0.00 0.37 0.00 0.00 0-2

5/31/2016 3420 26 San Joaquin 24.60 24.60 1130 1500 7.60 7.10 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

5/31/2016 3420 31 San Joaquin 24.50 24.50 730 1030 7.50 7.20 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

5/31/2016 8835 67 San Joaquin 22.20 22.60 830 1100 7.40 6.60 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

5/31/2016 9123 93 Contra Costa 23.40 25.30 900 1300 7.96 7.01 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 0-2

5/31/2016 9606 47 San Joaquin 21.60 22.30 900 1300 7.80 8.10 0.00 1.50 0.00 0.00 0.50 0.00 120 0.00 1.60 0.00 0.00 0-2

5/31/2016 9980 318 Stanislaus 24.40 24.70 1215 1430 9.78 9.81 0.00 3.25 0.00 0.00 1.75 0.00 120 0.00 3.47 0.00 0.00 2-4

5/31/2016 9980 319 Stanislaus 23.70 24.30 830 1200 10.25 10.39 0.00 4.25 0.00 0.00 2.50 0.00 120 0.00 4.53 0.00 0.00 2-4

0.00 233.54 2.40 0.00 117.60 0.00 0.00 260.65 9.60 0.00

- 63 -

Table B- 4. June 2016 Herbicide and Adjuvant Use

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

6/1/2016 3420 32 San Joaquin 24.50 24.70 730 1430 8.30 7.00 0.00 3.50 0.00 0.00 1.75 0.00 120 0.00 3.73 0.00 0.00 0-2

6/1/2016 3738 215 San Joaquin 20.20 21.00 830 1400 7.80 6.70 0.00 9.50 0.00 0.00 5.00 0.00 120 0.00 10.13 0.00 0.00 2-4

6/1/2016 9123 90 San Joaquin 24.10 25.00 1200 1330 7.33 7.48 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 2-4

6/1/2016 9606 49 San Joaquin 22.60 22.80 1100 1420 9.10 8.30 0.00 7.00 0.00 0.00 3.50 0.00 120 0.00 7.47 0.00 0.00 0-2

6/2/2016 3420 35 San Joaquin 25.10 25.20 700 0 9.20 8.80 0.00 0.00 0.00 0.00 0.00 0.00 120 0.00 0.00 0.00 0.00 0-2

6/2/2016 3420 36 San Joaquin 25.30 25.40 1100 1430 8.50 8.20 0.00 3.50 0.00 0.00 1.75 0.00 120 0.00 3.73 0.00 0.00 0-2

6/2/2016 9123 53 San Joaquin 26.30 27.00 1230 1400 7.97 7.42 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 2-4

6/2/2016 9123 90 Contra Costa 24.70 27.20 1000 1200 6.34 7.76 0.00 2.25 0.00 0.00 1.25 0.00 120 0.00 2.40 0.00 0.00 0-2

6/2/2016 9980 50 San Joaquin 23.30 24.80 930 1430 7.87 8.32 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

6/2/2016 Merced 506 Merced 27.30 28.40 1200 1340 8.50 9.75 0.00 0.14 0.00 0.00 0.07 0.00 96 0.00 0.19 0.00 0.00 2-4

6/2/2016 Merced 507 Merced 24.70 27.30 830 1200 7.12 8.50 0.00 0.19 0.00 0.00 0.09 0.00 96 0.00 0.25 0.00 0.00 2-4

6/6/2016 3420 32 San Joaquin 24.80 25.30 730 1400 10.20 7.50 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 0-2

6/6/2016 9606 47 San Joaquin 21.90 23.90 730 1430 8.10 9.70 0.00 7.50 0.00 0.00 3.50 0.00 120 0.00 8.00 0.00 0.00 0-2

6/6/2016 9980 300 San Joaquin 22.60 24.60 800 1415 8.40 9.55 0.00 6.75 0.00 0.00 3.75 0.00 120 0.00 7.20 0.00 0.00 2-4

6/6/2016 Merced 505 Merced 27.80 29.80 1200 1405 7.53 8.31 0.00 0.13 0.00 0.00 0.06 0.00 96 0.00 0.17 0.00 0.00 4-6

6/6/2016 Merced 506 Merced 23.70 27.80 850 1200 7.27 7.53 0.00 0.14 0.00 0.00 0.07 0.00 96 0.00 0.19 0.00 0.00 2-4

6/7/2016 8929 215 Sacramento 19.70 23.70 900 1200 7.20 6.60 0.00 6.00 0.00 0.00 3.50 0.00 120 0.00 6.40 0.00 0.00 6-8

6/7/2016 9606 46 San Joaquin 23.90 24.70 730 1430 8.50 7.40 0.00 8.50 0.00 0.00 4.00 0.00 120 0.00 9.07 0.00 0.00 0-2

6/7/2016 Merced 504 Merced 24.50 30.00 940 1340 7.22 9.76 0.00 0.11 0.00 0.00 0.05 0.00 96 0.00 0.15 0.00 0.00 4-6

6/7/2016 Merced 505 Merced 24.20 24.50 835 940 7.10 7.22 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 4-6

6/8/2016 3420 31 San Joaquin 24.80 25.20 730 1300 10.10 8.40 0.00 3.50 0.00 0.00 1.75 0.00 120 0.00 3.73 0.00 0.00 2-4

6/8/2016 8929 215 San Joaquin 22.60 23.00 800 1200 6.50 7.20 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 6-8

6/8/2016 9123 52 San Joaquin 24.20 25.00 930 1230 7.21 7.93 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 6-8

6/8/2016 9606 73 San Joaquin 24.10 24.90 1200 1400 7.60 8.20 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 4-6

6/8/2016 9606 82 San Joaquin 23.90 24.10 745 1150 7.90 7.60 0.00 5.00 0.00 0.00 2.00 0.00 120 0.00 5.33 0.00 0.00 2-4

6/8/2016 Merced 503 Merced 25.10 27.30 1135 1355 7.90 9.28 0.00 0.14 0.00 0.00 0.07 0.00 96 0.00 0.19 0.00 0.00 2-4

6/8/2016 Merced 504 Merced 23.50 25.10 840 1135 7.16 7.90 0.00 0.14 0.00 0.00 0.07 0.00 96 0.00 0.19 0.00 0.00 2-4

6/9/2016 8929 216 San Joaquin 22.30 22.80 730 1200 7.80 6.70 0.00 6.00 0.00 0.00 4.50 0.00 120 0.00 6.40 0.00 0.00 6-8

6/9/2016 9606 48 San Joaquin 23.60 24.50 730 1400 8.30 7.50 0.00 6.00 0.00 0.00 2.50 0.00 120 0.00 6.40 0.00 0.00 2-4

6/10/2016 8929 215 San Joaquin 22.70 23.00 800 1500 7.20 6.80 0.00 9.00 0.00 0.00 4.50 0.00 120 0.00 9.60 0.00 0.00 6-8

6/10/2016 9606 76 San Joaquin 24.30 24.70 945 1430 7.90 8.30 0.00 9.50 0.00 0.00 3.50 0.00 120 0.00 10.13 0.00 0.00 2-4

6/13/2016 3420 25 San Joaquin 25.10 25.30 800 1030 7.90 8.20 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 0-2

6/13/2016 3420 26 San Joaquin 25.30 25.50 1100 1330 8.40 9.20 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 2-4

6/13/2016 8929 216 San Joaquin 21.70 21.90 830 1430 7.80 6.80 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 6-8

6/13/2016 9123 56 San Joaquin 23.70 25.10 900 1230 7.33 7.62 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

6/13/2016 9606 88 Contra Costa 23.90 24.10 800 1330 9.30 8.70 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 2-4

6/13/2016 Merced 412 Merced 22.20 24.20 1125 1345 5.35 6.70 0.00 0.09 0.00 0.00 0.05 0.00 96 0.00 0.12 0.00 0.00 2-4

6/13/2016 Merced 413 Merced 20.50 22.22 850 1125 5.64 5.35 0.00 0.14 0.00 0.00 0.07 0.00 96 0.00 0.19 0.00 0.00 2-4

6/14/2016 3420 28 San Joaquin 24.20 25.10 830 1400 7.10 9.60 0.00 3.50 0.00 0.00 1.75 0.00 120 0.00 3.73 0.00 0.00 0-2

6/14/2016 8929 203 San Joaquin 20.20 20.80 930 1200 7.52 7.01 0.00 2.50 0.00 0.00 1.00 0.00 120 0.00 2.67 0.00 0.00 6-8

6/14/2016 9606 48 San Joaquin 23.50 24.70 815 1430 7.40 9.40 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 2-4

6/14/2016 Merced 410 Merced 21.30 23.20 1200 1345 7.30 9.47 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 6-8

6/14/2016 Merced 412 Merced 20.10 21.30 835 1200 5.13 7.30 0.00 0.19 0.00 0.00 0.09 0.00 96 0.00 0.25 0.00 0.00 6-8

6/15/2016 3420 8 San Joaquin 24.30 24.60 830 1230 8.50 9.20 0.50 0.00 0.00 0.00 0.25 0.00 64 0.50 0.00 0.00 0.00 4-6

6/16/2016 3420 8 San Joaquin 22.60 22.70 1100 1500 10.10 10.60 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 0-2

6/16/2016 9606 49 San Joaquin 23.20 23.80 1045 1500 8.40 7.20 0.00 7.50 0.00 0.00 3.00 0.00 120 0.00 8.00 0.00 0.00 4-6

- 64 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

6/16/2016 Merced 409 Merced 19.50 22.70 1030 1350 6.61 7.81 0.00 0.11 0.00 0.00 0.06 0.00 96 0.00 0.15 0.00 0.00 4-6

6/16/2016 Merced 410 Merced 18.80 19.50 900 1030 6.60 6.61 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 4-6

6/17/2016 8929 215 Sacramento 20.40 21.00 800 1500 8.29 6.79 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 2-4

6/17/2016 9371 214 Sacramento 22.60 23.70 958 1050 9.50 8.70 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 4-6

6/17/2016 9371 216 Sacramento 23.50 23.20 1110 1222 8.80 8.00 0.00 0.95 0.00 0.00 0.60 0.00 120 0.00 1.01 0.00 0.00 4-6

6/17/2016 9371 217 Sacramento 25.10 24.30 1436 1540 8.90 9.90 0.00 2.30 0.00 0.00 1.15 0.00 120 0.00 2.45 0.00 0.00 4-6

6/17/2016 9371 219 Sacramento 23.10 23.20 1233 1431 8.10 8.10 0.00 2.25 0.00 0.00 1.00 0.00 120 0.00 2.40 0.00 0.00 2-4

6/17/2016 9606 47 San Joaquin 23.10 23.70 745 1345 7.20 9.10 0.00 7.00 0.00 0.00 3.00 0.00 120 0.00 7.47 0.00 0.00 0-2

6/17/2016 Merced 410 Merced 22.20 26.60 1120 1300 6.73 5.85 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 2-4

6/17/2016 Merced 411 Merced 19.50 22.20 835 1120 6.06 6.73 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 2-4

6/18/2016 8929 88 Contra Costa 23.40 24.30 800 1430 7.60 9.30 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

6/20/2016 3420 32 San Joaquin 25.10 25.50 800 1300 9.30 7.10 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 2-4

6/20/2016 8929 212 Sacramento 19.50 20.20 800 1030 8.10 7.80 0.00 4.50 0.00 0.00 2.25 0.00 120 0.00 4.80 0.00 0.00 0-2

6/20/2016 8929 214 Sacramento 21.10 21.00 1100 1500 6.90 7.20 0.00 5.50 0.00 0.00 2.75 0.00 120 0.00 5.87 0.00 0.00 0-2

6/20/2016 9606 75 San Joaquin 23.80 24.20 730 1500 8.20 8.40 0.00 10.50 0.00 0.00 5.50 0.00 120 0.00 11.20 0.00 0.00 0-2

6/20/2016 Merced 408 Merced 22.40 24.90 840 1410 5.75 6.81 0.00 0.16 0.00 0.00 0.08 0.00 96 0.00 0.21 0.00 0.00 4-6

6/21/2016 3420 37 San Joaquin 23.90 24.70 730 1330 9.60 7.20 6.00 0.00 0.00 0.00 3.00 0.00 64 6.00 0.00 0.00 0.00 0-2

6/21/2016 8929 215 San Joaquin 22.10 23.00 800 1500 7.70 7.20 0.00 9.00 0.00 0.00 4.50 0.00 120 0.00 9.60 0.00 0.00 2-4

6/21/2016 9339 99 San Joaquin 23.80 24.30 930 1030 7.43 7.11 1.00 0.00 0.00 0.00 0.50 0.00 64 1.00 0.00 0.00 0.00 4-6

6/21/2016 9606 76 San Joaquin 24.20 24.50 730 1300 9.50 7.90 0.00 7.50 0.00 0.00 3.50 0.00 120 0.00 8.00 0.00 0.00 0-2

6/22/2016 3420 32 San Joaquin 25.10 25.20 1130 1300 7.60 7.30 0.50 0.00 0.00 0.00 0.25 0.00 64 0.50 0.00 0.00 0.00 4-6

6/22/2016 3420 42 San Joaquin 24.30 24.60 930 1030 8.10 7.90 0.50 0.00 0.00 0.00 0.25 0.00 64 0.50 0.00 0.00 0.00 4-6

6/22/2016 8929 40 San Joaquin 22.90 23.20 900 1200 8.30 8.70 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

6/22/2016 9339 53 San Joaquin 24.10 27.80 900 0 7.12 7.43 3.00 1.00 0.00 0.00 0.00 0.00 64 3.00 1.07 0.00 0.00 0-2

6/22/2016 9606 47 San Joaquin 24.30 24.50 730 1430 10.30 7.50 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 0-2

6/22/2016 9980 301 San Joaquin 24.20 24.70 830 1145 7.43 8.64 1.75 0.00 0.00 0.00 0.75 0.00 64 1.75 0.00 0.00 0.00 4-6

6/23/2016 Merced 404 Merced 26.60 26.70 1300 1350 6.40 7.94 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 6-8

6/23/2016 Merced 405 Merced 25.30 26.60 1105 1300 5.05 6.40 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 6-8

6/23/2016 Merced 407 Merced 23.80 25.30 915 1105 5.37 5.05 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 2-4

6/23/2016 Merced 408 Merced 23.50 23.80 830 915 6.04 5.37 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 2-4

6/24/2016 3548 214 San Joaquin 21.00 23.40 900 1400 8.10 7.80 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 2-4

6/24/2016 8834 47 Sacramento 22.30 22.30 900 1500 7.50 7.50 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

6/24/2016 9607 47 San Joaquin 23.70 25.30 800 1500 8.30 7.20 0.00 8.00 0.00 0.00 3.00 0.00 120 0.00 8.53 0.00 0.00 0-2

6/24/2016 Merced 519 Merced 28.30 28.30 1225 1300 8.53 8.02 0.00 0.09 0.00 0.00 0.05 0.00 96 0.00 0.12 0.00 0.00 8-10

6/24/2016 Merced 529 Merced 16.80 18.90 820 1100 8.24 8.16 0.00 0.19 0.00 0.00 0.09 0.00 96 0.00 0.25 0.00 0.00 6-8

6/25/2016 3548 214 Sacramento 21.10 21.30 900 1100 7.60 8.10 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

6/25/2016 3548 217 Sacramento 22.10 22.70 1130 1430 7.00 6.80 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 2-4

6/25/2016 8929 74 San Joaquin 23.70 24.60 800 1500 9.20 9.30 0.00 8.00 0.00 0.00 3.50 0.00 120 0.00 8.53 0.00 0.00 0-2

6/25/2016 9607 73 San Joaquin 25.80 26.90 1135 1353 8.60 12.60 0.00 3.25 0.00 0.00 3.25 0.00 120 0.00 3.47 0.00 0.00 6-8

6/25/2016 9607 74 San Joaquin 23.30 26.00 830 1131 7.40 8.80 0.00 4.75 0.00 0.00 1.75 0.00 120 0.00 5.07 0.00 0.00 4-6

6/27/2016 3420 33 San Joaquin 25.20 25.40 1230 1500 8.80 7.20 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 0-2

6/27/2016 3420 39 San Joaquin 25.20 25.40 800 1130 7.20 9.30 3.50 0.00 0.00 0.00 1.75 0.00 64 3.50 0.00 0.00 0.00 0-2

6/27/2016 8929 202 San Joaquin 22.20 24.30 830 1500 8.70 9.10 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

6/27/2016 9339 57 San Joaquin 25.90 27.60 830 1300 8.29 8.08 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

6/27/2016 9606 76 San Joaquin 23.90 24.50 730 1430 9.10 7.60 0.00 10.50 0.00 0.00 3.00 0.00 120 0.00 11.20 0.00 0.00 0-2

6/27/2016 9980 709 Stanislaus 26.60 26.80 815 1030 10.30 10.13 0.00 2.25 0.00 0.00 1.00 0.00 120 0.00 2.40 0.00 0.00 2-4

6/27/2016 9980 710 Stanislaus 26.80 27.80 1030 1400 10.13 10.25 0.00 5.25 0.00 0.00 2.00 0.00 120 0.00 5.60 0.00 0.00 4-6

6/27/2016 Merced 400 Merced 27.90 23.30 1245 1320 9.18 8.66 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 8-10

6/27/2016 Merced 401 Merced 27.60 27.90 1100 1245 8.27 9.18 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 6-8

- 65 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

6/27/2016 Merced 402 Merced 23.90 27.60 840 1110 5.84 8.27 0.00 0.09 0.00 0.00 0.05 0.00 96 0.00 0.12 0.00 0.00 2-4

6/28/2016 3420 6 San Joaquin 26.40 26.60 1030 1200 8.70 9.10 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 0-2

6/28/2016 3420 8 San Joaquin 25.90 26.10 730 930 7.10 8.50 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 0-2

6/28/2016 3548 707 Stanislaus 28.30 29.40 930 1130 8.75 7.50 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

6/28/2016 3548 708 Stanislaus 29.40 28.70 1200 1400 7.50 7.20 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

6/28/2016 8929 40 San Joaquin 24.40 24.70 900 1300 12.90 8.10 0.00 4.50 0.00 0.00 2.25 0.00 120 0.00 4.80 0.00 0.00 2-4

6/28/2016 9339 57 San Joaquin 25.60 26.60 1032 1300 7.95 8.96 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 2-4

6/28/2016 9371 80 San Joaquin 25.60 27.80 1027 1325 6.40 5.80 3.50 0.00 0.00 0.00 1.50 0.00 64 3.50 0.00 0.00 0.00 6-8

6/28/2016 9371 81 San Joaquin 28.10 29.00 1340 1426 6.00 6.30 1.25 0.00 0.00 0.00 0.75 0.00 64 1.25 0.00 0.00 0.00 6-8

6/28/2016 9606 77 San Joaquin 25.10 25.30 1000 1430 8.20 10.60 0.00 6.50 0.00 0.00 3.00 0.00 120 0.00 6.93 0.00 0.00 0-2

6/28/2016 9606 78 San Joaquin 24.50 24.90 730 1000 8.70 9.20 0.00 3.50 0.00 0.00 1.50 0.00 120 0.00 3.73 0.00 0.00 0-2

6/28/2016 964121 49 San Joaquin 25.90 26.00 1230 1430 7.90 8.70 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 2-4

6/28/2016 964121 78 San Joaquin 25.00 25.10 900 1030 13.60 10.60 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 2-4

6/28/2016 964121 82 San Joaquin 25.20 25.70 1100 1130 12.50 12.80 0.00 0.50 0.00 0.00 0.25 0.00 120 0.00 0.53 0.00 0.00 2-4

6/28/2016 9980 707 Stanislaus 28.30 29.60 930 1130 8.75 8.12 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 0-2

6/28/2016 9980 708 Stanislaus 29.60 30.10 1200 1430 8.12 9.36 0.00 3.00 0.00 0.00 1.25 0.00 120 0.00 3.20 0.00 0.00 0-2

6/28/2016 Merced 528 Merced 13.90 19.10 820 1330 8.97 9.07 0.00 0.11 0.00 0.00 0.05 0.00 96 0.00 0.15 0.00 0.00 0-2

6/29/2016 3420 39 San Joaquin 24.60 25.20 1045 1300 8.00 8.50 1.75 0.00 0.00 0.00 0.75 0.00 64 1.75 0.00 0.00 0.00 2-4

6/29/2016 3420 44 San Joaquin 25.20 25.40 800 1000 8.20 7.90 1.75 0.00 0.00 0.00 0.75 0.00 64 1.75 0.00 0.00 0.00 2-4

6/29/2016 3548 713 Stanislaus 27.10 26.70 930 1130 8.00 8.40 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

6/29/2016 3548 714 Stanislaus 26.70 27.80 1200 1400 8.40 7.90 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 2-4

6/29/2016 8929 213 San Joaquin 23.70 24.10 800 1430 8.20 8.70 0.00 3.25 0.00 0.00 1.50 0.00 120 0.00 3.47 0.00 0.00 2-4

6/29/2016 9123 109 Contra Costa 26.70 27.30 1000 1400 6.40 6.90 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 4-6

6/29/2016 9339 65 San Joaquin 25.10 27.20 900 1330 7.76 7.93 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 2-4

6/29/2016 9371 80 San Joaquin 25.80 28.80 815 1431 6.80 5.40 4.50 0.00 0.00 0.00 3.50 0.00 64 4.50 0.00 0.00 0.00 6-8

6/29/2016 9606 78 San Joaquin 25.20 25.90 745 1400 9.30 7.50 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 2-4

6/29/2016 9980 713 Stanislaus 27.10 26.70 945 1200 8.05 8.25 0.00 2.75 0.00 0.00 1.00 0.00 120 0.00 2.93 0.00 0.00 0-2

6/29/2016 9980 714 Stanislaus 26.70 27.80 1200 1400 8.25 7.90 0.00 2.25 0.00 0.00 1.00 0.00 120 0.00 2.40 0.00 0.00 2-4

6/30/2016 3420 8 San Joaquin 25.40 25.60 730 1200 7.20 8.30 3.50 0.00 0.00 0.00 1.75 0.00 64 3.50 0.00 0.00 0.00 0-2

6/30/2016 3548 300 San Joaquin 27.40 27.80 1000 1130 7.60 8.20 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 0-2

6/30/2016 3548 302 San Joaquin 27.80 27.60 1200 1230 8.20 8.10 0.50 0.00 0.00 0.00 0.25 0.00 64 0.50 0.00 0.00 0.00 2-4

6/30/2016 9339 66 San Joaquin 24.50 28.90 900 1130 7.84 8.60 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 6-8

6/30/2016 9371 81 San Joaquin 24.70 28.40 850 1437 2.80 5.30 4.75 0.00 0.00 0.00 4.25 0.00 64 4.75 0.00 0.00 0.00 2-4

6/30/2016 9606 72 San Joaquin 24.70 25.60 745 1500 8.10 8.70 0.00 10.50 0.00 0.00 5.00 0.00 120 0.00 11.20 0.00 0.00 0-2

6/30/2016 964121 107 Contra Costa 28.00 29.00 900 1200 8.90 9.90 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 2-4

6/30/2016 964121 110 Contra Costa 28.00 28.00 1230 1430 11.00 9.90 0.00 2.25 0.00 0.00 1.50 0.00 120 0.00 2.40 0.00 0.00 2-4

6/30/2016 9980 300 San Joaquin 26.80 27.50 930 1400 7.43 11.83 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 0-2

6/30/2016 Merced 526 Merced 17.30 21.10 1030 1350 8.18 8.13 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 0-2

62.75 382.21 0.00 0.00 216.83 0.00 62.75 408.41 0.00 0.00

- 66 -

Table B- 5. July 2016 Herbicide and Adjuvant Use

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

7/1/2016 8834 214 Sacramento 22.30 23.60 830 1100 7.70 7.40 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

7/1/2016 8834 216 Sacramento 23.60 24.40 1100 1400 7.20 7.00 0.00 1.50 0.00 0.00 1.50 0.00 120 0.00 1.60 0.00 0.00 4-6

7/1/2016 9606 49 San Joaquin 25.50 28.60 800 1400 8.50 7.50 0.00 8.50 0.00 0.00 5.00 0.00 120 0.00 9.07 0.00 0.00 0-2

7/1/2016 Merced 522 Merced 22.50 25.20 1145 1330 8.97 9.28 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 2-4

7/1/2016 Merced 523 Merced 19.50 22.50 910 1145 8.17 8.97 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 0-2

7/1/2016 Merced 524 Merced 18.50 19.50 820 910 8.25 8.17 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 0-2

7/5/2016 3738 31 San Joaquin 24.10 25.00 900 1200 9.60 8.50 2.50 0.00 0.00 0.00 1.50 0.00 64 2.50 0.00 0.00 0.00 4-6

7/5/2016 8929 215 San Joaquin 20.70 21.60 800 1400 8.20 7.60 0.00 7.50 0.00 0.00 4.00 0.00 120 0.00 8.00 0.00 0.00 6-8

7/5/2016 9371 85 Contra Costa 27.50 28.10 1145 1355 7.80 7.50 1.75 0.00 0.00 0.00 0.75 0.00 64 1.75 0.00 0.00 0.00 4-6

7/5/2016 Merced 520 Merced 22.10 24.10 1100 1400 8.00 9.10 0.00 0.11 0.00 0.00 0.05 0.00 96 0.00 0.15 0.00 0.00 2-4

7/5/2016 Merced 521 Merced 19.10 22.10 800 1100 8.14 8.00 0.00 0.11 0.00 0.00 0.05 0.00 96 0.00 0.15 0.00 0.00 2-4

7/6/2016 3420 31 San Joaquin 25.60 26.10 800 1400 9.50 7.90 3.50 0.00 0.00 0.00 1.75 0.00 64 3.50 0.00 0.00 0.00 0-2

7/6/2016 3548 304 San Joaquin 23.00 25.00 900 1330 11.90 10.80 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 4-6

7/6/2016 9123 110 Contra Costa 22.50 24.60 900 1230 6.60 6.70 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 4-6

7/6/2016 9339 59 San Joaquin 23.30 25.10 900 1330 7.80 8.01 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 0-2

7/6/2016 9371 84 Contra Costa 22.60 26.80 921 1419 6.90 7.30 3.59 0.00 0.00 0.00 1.91 0.00 64 3.59 0.00 0.00 0.00 2-4

7/6/2016 9371 84 San Joaquin 22.60 22.60 945 1000 6.90 6.90 0.16 0.00 0.00 0.00 0.09 0.00 64 0.16 0.00 0.00 0.00 2-4

7/6/2016 9607 304 San Joaquin 23.00 25.00 900 1330 12.22 11.80 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 4-6

7/7/2016 3420 30 San Joaquin 24.70 25.30 800 1400 9.80 8.10 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 0-2

7/7/2016 3548 84 Contra Costa 23.00 23.20 900 1130 7.00 7.30 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 4-6

7/7/2016 3738 14 San Joaquin 25.30 25.00 900 1330 7.90 7.80 0.00 2.50 0.00 0.00 1.50 0.00 120 0.00 2.67 0.00 0.00 2-4

7/7/2016 9339 107 Contra Costa 22.60 23.40 830 1100 7.47 7.51 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 0-2

7/7/2016 9371 84 Contra Costa 22.60 24.70 1000 1130 5.30 7.40 1.25 0.00 0.00 0.00 0.75 0.00 64 1.25 0.00 0.00 0.00 6-8

7/7/2016 9980 316 Stanislaus 22.40 22.80 1030 1115 13.05 7.84 0.00 0.50 0.00 0.00 0.25 0.00 120 0.00 0.53 0.00 0.00 2-4

7/7/2016 9980 317 Stanislaus 22.80 23.40 1145 1245 7.84 8.19 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 4-6

7/7/2016 9980 318 Stanislaus 23.40 23.80 1220 1430 8.19 7.80 0.00 1.75 0.00 0.00 0.75 0.00 120 0.00 1.87 0.00 0.00 4-6

7/7/2016 9980 320 Stanislaus 23.50 23.60 900 1000 7.97 8.02 0.00 0.75 0.00 0.00 0.25 0.00 120 0.00 0.80 0.00 0.00 2-4

7/7/2016 Merced 518 Merced 23.80 26.40 1120 1440 8.16 8.73 0.00 0.22 0.00 0.00 0.11 0.00 96 0.00 0.29 0.00 0.00 4-6

7/7/2016 Merced 519 Merced 20.60 23.80 825 1120 8.00 8.16 0.00 0.19 0.00 0.00 0.09 0.00 96 0.00 0.25 0.00 0.00 4-6

7/8/2016 9371 85 Contra Costa 22.10 25.60 815 1409 7.60 10.40 3.25 0.00 0.00 0.00 2.00 0.00 64 3.25 0.00 0.00 0.00 0-2

7/8/2016 9371 87 Contra Costa 22.70 23.40 935 1202 7.20 8.90 2.00 0.00 0.00 0.00 1.50 0.00 64 2.00 0.00 0.00 0.00 4-6

7/8/2016 Merced 515 Merced 23.80 24.70 1235 1330 8.01 8.35 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 4-6

7/8/2016 Merced 517 Merced 21.20 23.80 910 1235 8.10 8.01 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 4-6

7/8/2016 Merced 518 Merced 21.40 21.20 830 910 8.06 8.10 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 4-6

7/9/2016 9371 84 Contra Costa 23.50 24.10 817 1100 7.40 7.00 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 4-6

7/9/2016 9371 85 San Joaquin 25.50 26.20 1358 1430 5.80 5.40 0.05 0.00 0.00 0.00 0.25 0.00 64 0.05 0.00 0.00 0.00 6-8

7/9/2016 9371 85 Contra Costa 22.20 24.50 1115 1400 5.60 6.30 3.25 0.00 0.00 0.00 1.25 0.00 64 3.25 0.00 0.00 0.00 6-8

7/11/2016 3420 32 San Joaquin 25.30 25.50 800 1300 8.90 8.10 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 4-6

7/11/2016 3548 84 San Joaquin 21.80 22.10 900 1030 8.24 8.17 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 2-4

7/11/2016 3548 86 San Joaquin 22.00 22.10 1030 1330 8.30 8.17 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 2-4

7/11/2016 3738 26 San Joaquin 25.00 25.30 800 1030 9.10 8.90 1.50 0.00 0.00 0.00 0.50 0.00 64 1.50 0.00 0.00 0.00 2-4

7/11/2016 3738 28 San Joaquin 25.30 25.30 1100 1430 8.80 8.80 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 4-6

7/11/2016 9123 107 Contra Costa 22.20 23.70 800 1030 7.70 9.10 1.00 0.00 0.00 0.00 0.50 0.00 64 1.00 0.00 0.00 0.00 4-6

7/11/2016 9123 110 Contra Costa 24.00 25.20 1100 1430 8.91 7.63 0.50 0.00 0.00 0.00 1.25 0.00 64 0.50 0.00 0.00 0.00 4-6

7/11/2016 9123 111 Contra Costa 23.60 23.90 1030 1100 8.77 8.90 3.50 0.00 0.00 0.00 0.25 0.00 64 3.50 0.00 0.00 0.00 4-6

7/11/2016 9371 80 San Joaquin 25.80 25.70 1355 1441 7.30 7.10 1.25 0.00 0.00 0.00 0.50 0.00 64 1.25 0.00 0.00 0.00 2-4

7/11/2016 9371 83 Contra Costa 25.00 25.00 1231 1325 7.50 7.50 0.50 0.00 0.00 0.00 0.25 0.00 64 0.50 0.00 0.00 0.00 2-4

7/11/2016 9371 83 San Joaquin 25.30 25.30 1333 1351 7.50 7.50 0.25 0.00 0.00 0.00 0.25 0.00 64 0.25 0.00 0.00 0.00 2-4

- 67 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

7/11/2016 9371 85 San Joaquin 24.50 27.90 1005 1215 8.50 7.60 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 4-6

7/11/2016 9606 46 San Joaquin 24.90 25.10 745 1500 7.40 2.10 0.00 10.00 0.00 0.00 4.00 0.00 120 0.00 10.67 0.00 0.00 0-2

7/11/2016 Merced 514 Merced 19.30 25.80 1240 1440 9.23 8.75 0.00 0.14 0.00 0.00 0.07 0.00 96 0.00 0.19 0.00 0.00 4-6

7/11/2016 Merced 515 Merced 20.40 19.30 850 1240 8.08 9.23 0.00 0.23 0.00 0.00 0.12 0.00 96 0.00 0.31 0.00 0.00 2-4

7/12/2016 3420 35 San Joaquin 24.40 25.20 700 1500 7.50 9.70 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 0-2

7/12/2016 3548 112 Contra Costa 23.60 23.90 900 1100 7.10 7.60 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 0-2

7/12/2016 3738 76 San Joaquin 25.40 25.20 830 1200 8.80 8.70 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 0-2

7/12/2016 8834 709 Stanislaus 26.30 29.90 930 1400 9.84 10.33 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

7/12/2016 8929 216 Sacramento 20.30 25.10 730 1530 8.20 7.90 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

7/12/2016 9123 109 Contra Costa 25.10 25.20 1230 1300 7.82 7.33 0.50 0.00 0.00 0.00 0.25 0.00 64 0.50 0.00 0.00 0.00 4-8

7/12/2016 9123 112 Contra Costa 23.40 24.40 830 1100 7.21 6.74 4.50 0.00 0.00 0.00 2.25 0.00 64 4.50 0.00 0.00 0.00 0-2

7/12/2016 9371 84 Contra Costa 25.10 26.40 1105 1250 7.60 7.40 0.50 0.00 0.00 0.00 0.25 0.00 64 0.50 0.00 0.00 0.00 2-4

7/12/2016 9609 46 San Joaquin 24.60 25.20 735 1430 8.40 9.30 0.00 10.00 0.00 0.00 4.50 0.00 120 0.00 10.67 0.00 0.00 0-2

7/12/2016 Merced 512 Merced 26.20 27.50 1250 1430 9.21 9.60 0.00 0.13 0.00 0.00 0.07 0.00 96 0.00 0.17 0.00 0.00 4-6

7/12/2016 Merced 513 Merced 22.70 26.20 940 1250 8.36 9.21 0.00 0.13 0.00 0.00 0.06 0.00 96 0.00 0.17 0.00 0.00 0-2

7/12/2016 Merced 514 Merced 22.50 22.70 840 940 8.67 8.36 0.00 0.11 0.00 0.00 0.05 0.00 96 0.00 0.15 0.00 0.00 0-2

7/13/2016 3420 36 San Joaquin 24.80 25.30 800 1300 7.10 8.70 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 0-2

7/13/2016 3548 710 Stanislaus 22.60 22.80 900 1330 7.60 7.90 0.00 4.50 0.00 0.00 2.25 0.00 120 0.00 4.80 0.00 0.00 0-2

7/13/2016 3738 76 San Joaquin 25.40 25.20 830 1100 8.80 8.10 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 0-2

7/13/2016 8834 710 Stanislaus 22.60 22.80 900 1400 7.60 7.90 0.00 3.25 0.00 0.00 1.25 0.00 120 0.00 3.47 0.00 0.00 2-4

7/13/2016 8929 252 Sacramento 23.10 24.00 1200 1500 7.80 8.20 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

7/13/2016 8929 261 Solano 22.20 22.80 900 930 8.70 8.50 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 0-2

7/13/2016 8929 262 Solano 22.90 23.00 945 1130 6.90 7.20 0.00 3.50 0.00 0.00 1.75 0.00 120 0.00 3.73 0.00 0.00 0-2

7/13/2016 9123 110 Contra Costa 24.00 25.90 830 1400 7.85 7.47 4.75 0.00 0.00 0.00 2.25 0.00 64 4.75 0.00 0.00 0.00 2-4

7/13/2016 9371 87 San Joaquin 23.40 26.60 829 1142 7.70 7.40 1.25 0.00 0.00 0.00 0.50 0.00 64 1.25 0.00 0.00 0.00 2-4

7/13/2016 9371 87 Contra Costa 23.40 26.60 829 1030 7.70 7.40 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 2-4

7/13/2016 9606 47 San Joaquin 24.30 25.20 745 1500 9.30 7.30 0.00 10.00 0.00 0.00 4.00 0.00 120 0.00 10.67 0.00 0.00 0-2

7/13/2016 Merced 512 Merced 24.10 28.10 845 1350 8.05 9.21 0.00 0.13 0.00 0.00 0.07 0.00 96 0.00 0.17 0.00 0.00 2-4

7/14/2016 3420 14 San Joaquin 25.30 25.70 700 1330 7.20 9.10 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 0-2

7/14/2016 3738 73 San Joaquin 25.00 25.00 1230 1400 9.90 10.00 0.50 0.00 0.00 0.00 0.25 0.00 64 0.50 0.00 0.00 0.00 0-2

7/14/2016 3738 75 San Joaquin 24.80 25.00 700 1130 9.80 9.90 4.50 0.00 0.00 0.00 2.25 0.00 64 4.50 0.00 0.00 0.00 0-2

7/14/2016 8929 215 San Joaquin 23.70 24.00 800 1400 7.10 6.80 0.00 7.00 0.00 0.00 3.50 0.00 120 0.00 7.47 0.00 0.00 0-2

7/14/2016 9123 109 Contra Costa 25.00 27.70 1000 1300 6.09 6.45 1.25 0.00 0.00 0.00 0.75 0.00 64 1.25 0.00 0.00 0.00 0-2

7/14/2016 9123 110 Contra Costa 24.10 25.90 800 930 7.04 7.78 1.75 0.00 0.00 0.00 0.75 0.00 64 1.75 0.00 0.00 0.00 0-2

7/14/2016 9371 83 Contra Costa 27.80 26.90 1258 1330 6.80 6.90 1.25 0.00 0.00 0.00 0.50 0.00 64 1.25 0.00 0.00 0.00 6-8

7/14/2016 9371 83 San Joaquin 27.80 29.60 1330 1409 6.80 6.90 1.25 0.00 0.00 0.00 0.50 0.00 64 1.25 0.00 0.00 0.00 6-8

7/14/2016 9371 84 Contra Costa 26.80 26.90 1032 1211 5.90 5.70 2.00 0.00 0.00 0.00 1.25 0.00 64 2.00 0.00 0.00 0.00 2-4

7/14/2016 Merced 412 Merced 26.60 27.50 1230 1340 5.24 6.05 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 0-2

7/14/2016 Merced 413 Merced 23.80 26.60 845 1230 5.82 5.24 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 0-2

7/15/2016 3548 100 San Joaquin 24.20 25.10 900 1330 7.80 8.10 6.00 0.00 0.00 0.00 3.00 0.00 64 6.00 0.00 0.00 0.00 0-2

7/15/2016 8834 215 Sacramento 22.00 23.60 800 1400 7.70 7.00 0.00 7.50 0.00 0.00 4.00 0.00 120 0.00 8.00 0.00 0.00 2-4

7/15/2016 8929 215 Sacramento 21.90 0.00 730 0 7.70 0.00 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 4-6

7/15/2016 9339 100 San Joaquin 24.20 25.10 830 1400 7.18 6.97 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 2-4

7/15/2016 9606 47 San Joaquin 25.30 25.60 745 1500 7.90 8.90 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

7/16/2016 8834 48 San Joaquin 27.90 27.60 1200 1400 7.30 7.00 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 2-4

7/16/2016 8834 49 San Joaquin 22.20 24.30 730 1200 8.30 7.40 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 2-4

7/16/2016 8929 217 San Joaquin 22.80 23.00 800 1500 6.80 7.20 0.00 6.00 0.00 0.00 2.50 0.00 120 0.00 6.40 0.00 0.00 6-8

7/16/2016 9606 49 San Joaquin 24.70 26.90 730 1500 8.50 9.10 0.00 12.50 0.00 0.00 5.00 0.00 120 0.00 13.33 0.00 0.00 0-2

7/18/2016 3420 29 San Joaquin 24.40 25.10 800 1300 8.70 7.20 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 0-2

- 68 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

7/18/2016 3548 109 Contra Costa 23.30 25.00 900 1330 7.20 8.00 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 2-4

7/18/2016 3738 43 San Joaquin 25.10 25.00 800 1200 11.10 10.80 1.00 0.00 0.00 0.00 0.50 0.00 64 1.00 0.00 0.00 0.00 0-2

7/18/2016 8929 217 San Joaquin 22.60 22.60 1245 1300 7.80 7.80 0.00 0.21 0.00 0.00 0.11 0.00 120 0.00 0.22 0.00 0.00 6-8

7/18/2016 8929 219 San Joaquin 22.40 22.60 800 1245 8.00 7.80 0.00 4.79 0.00 0.00 2.39 0.00 120 0.00 5.11 0.00 0.00 6-8

7/18/2016 9123 109 Contra Costa 23.00 27.10 830 1430 6.73 8.42 6.25 0.00 0.00 0.00 3.00 0.00 64 6.25 0.00 0.00 0.00 2-4

7/18/2016 9371 85 Contra Costa 22.40 23.20 936 1118 5.10 6.70 0.50 0.00 0.00 0.00 0.25 0.00 64 0.50 0.00 0.00 0.00 8-10

7/18/2016 9606 48 San Joaquin 24.70 25.90 800 1410 7.60 9.30 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

7/18/2016 Merced 410 Merced 24.10 27.70 1115 1340 5.12 7.97 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 4-6

7/18/2016 Merced 412 Merced 22.00 24.10 840 1115 5.69 5.12 0.00 0.09 0.00 0.00 0.05 0.00 96 0.00 0.12 0.00 0.00 0-2

7/19/2016 3420 15 San Joaquin 25.60 25.50 830 1400 9.50 7.30 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 0-2

7/19/2016 3548 320 Stanislaus 22.00 23.40 900 1330 7.10 7.00 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 2-4

7/19/2016 3738 13 San Joaquin 25.40 25.80 700 1300 11.60 9.90 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 0-2

7/19/2016 8929 203 San Joaquin 20.00 24.10 730 1300 8.20 7.20 0.00 8.50 0.00 0.00 4.25 0.00 120 0.00 9.07 0.00 0.00 2-4

7/19/2016 9123 108 Contra Costa 22.60 25.10 800 1130 7.06 6.80 2.75 0.00 0.00 0.00 1.25 0.00 64 2.75 0.00 0.00 0.00 2-4

7/19/2016 9371 215 Sacramento 21.30 23.70 924 1203 7.50 5.20 0.00 4.00 0.00 0.00 1.25 0.00 120 0.00 4.27 0.00 0.00 0-2

7/19/2016 9606 82 San Joaquin 23.40 24.50 800 1430 10.80 9.20 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 2-4

7/19/2016 Merced 410 Merced 23.40 26.40 1110 1350 7.06 8.35 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 4-6

7/19/2016 Merced 411 Merced 22.30 23.40 925 1110 5.02 7.06 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 4-6

7/20/2016 3420 15 San Joaquin 24.90 25.30 800 1330 9.20 8.70 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 0-2

7/20/2016 3548 321 Stanislaus 22.60 23.40 930 1300 7.20 1.00 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 2-4

7/20/2016 3738 14 San Joaquin 23.00 23.10 1230 1500 8.10 7.90 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 0-2

7/20/2016 3738 15 San Joaquin 23.10 23.00 800 1130 9.90 9.00 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 0-2

7/20/2016 8929 216 Sacramento 23.20 23.50 900 1500 8.40 8.20 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 4-6

7/20/2016 8929 217 Sacramento 22.20 22.70 800 900 7.40 8.10 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 6-8

7/20/2016 9339 108 Contra Costa 22.90 26.20 830 1130 6.22 6.49 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 2-4

7/20/2016 9371 73 San Joaquin 25.30 25.50 1155 1375 8.50 8.50 1.50 0.00 0.00 0.00 0.50 0.00 64 1.50 0.00 0.00 0.00 2-4

7/20/2016 9371 82 San Joaquin 22.90 26.10 835 1148 6.40 7.90 3.25 0.00 0.00 0.00 1.50 0.00 64 3.25 0.00 0.00 0.00 6-8

7/20/2016 9606 73 San Joaquin 24.50 26.20 800 1500 8.40 8.00 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

7/20/2016 Merced 511 Merced 26.50 28.80 940 1420 8.27 8.86 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 4-6

7/20/2016 Merced 512 Merced 23.70 26.50 830 940 8.35 8.27 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 2-4

7/21/2016 3420 6 San Joaquin 24.90 25.30 800 1300 9.50 8.10 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 0-2

7/21/2016 3548 112 Contra Costa 23.70 24.50 930 1400 7.10 7.40 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 2-4

7/21/2016 3738 6 San Joaquin 25.00 23.10 800 1400 8.10 7.90 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 2-4

7/21/2016 8834 321 Stanislaus 22.10 23.90 845 1130 6.48 7.90 3.00 0.00 0.00 0.00 1.25 0.00 64 3.00 0.00 0.00 0.00 2-4

7/21/2016 8834 322 Stanislaus 23.90 24.80 1130 1345 7.90 7.13 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 4-6

7/21/2016 8929 203 San Joaquin 21.90 22.40 800 1000 8.20 8.70 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 6-8

7/21/2016 8929 205 San Joaquin 22.10 22.30 1030 1130 9.30 9.00 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 6-8

7/21/2016 9123 112 Contra Costa 23.70 24.50 930 1400 7.01 7.40 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 0-2

7/21/2016 9371 81 San Joaquin 22.10 24.50 820 1412 5.40 5.80 3.00 0.00 0.00 0.00 2.00 0.00 64 3.00 0.00 0.00 0.00 6-8

7/21/2016 9606 72 Solano 25.50 27.40 730 1400 9.20 8.20 0.00 7.50 0.00 0.00 4.00 0.00 120 0.00 8.00 0.00 0.00 0-2

7/21/2016 Merced 508 Merced 27.70 29.30 1230 1340 7.25 8.10 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 4-6

7/21/2016 Merced 509 Merced 26.60 27.70 1135 1230 7.27 7.25 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 4-6

7/21/2016 Merced 510 Merced 25.80 26.60 830 1135 7.39 7.27 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 2-4

7/22/2016 8929 215 San Joaquin 21.20 22.00 800 1130 7.80 8.10 0.00 6.50 0.00 0.00 4.00 0.00 120 0.00 6.93 0.00 0.00 0-2

7/22/2016 8929 216 San Joaquin 22.80 23.50 1200 1500 8.90 7.20 0.00 1.50 0.00 0.00 7.50 0.00 120 0.00 1.60 0.00 0.00 0-2

7/22/2016 9123 100 San Joaquin 24.30 26.90 830 1500 7.26 6.49 7.50 0.00 0.00 0.00 3.75 0.00 64 7.50 0.00 0.00 0.00 2-4

7/22/2016 9606 74 San Joaquin 23.40 24.60 800 1430 7.40 8.10 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

7/22/2016 Merced 519 Merced 25.30 25.70 1210 1300 8.02 8.16 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 6-8

- 69 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

7/22/2016 Merced 529 Merced 17.10 19.00 815 1050 8.58 8.41 0.00 0.16 0.00 0.00 0.08 0.00 96 0.00 0.21 0.00 0.00 6-8

7/23/2016 9606 72 San Joaquin 23.90 24.70 730 1400 7.70 9.20 0.00 7.50 0.00 0.00 3.00 0.00 120 0.00 8.00 0.00 0.00 0-2

7/25/2016 3420 8 San Joaquin 25.40 25.20 830 1245 8.60 9.20 3.50 0.00 0.00 0.00 1.75 0.00 64 3.50 0.00 0.00 0.00 0-2

7/25/2016 3548 301 San Joaquin 24.50 25.10 900 1130 7.00 7.10 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 2-4

7/25/2016 3738 61 San Joaquin 24.10 24.10 1000 1300 11.60 9.20 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 6-8

7/25/2016 3738 62 San Joaquin 24.00 24.00 800 1000 9.90 11.00 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 2-4

7/25/2016 8834 300 San Joaquin 23.10 24.80 845 1145 7.33 6.82 2.25 0.00 0.00 0.00 0.75 0.00 64 2.25 0.00 0.00 0.00 2-4

7/25/2016 8834 302 San Joaquin 24.80 25.30 1130 1400 6.82 8.47 1.25 0.00 0.00 0.00 0.50 0.00 64 1.25 0.00 0.00 0.00 2-4

7/25/2016 9371 76 San Joaquin 24.00 25.50 809 1430 7.30 6.90 3.25 3.50 0.00 0.00 3.50 0.00 64 3.25 3.73 0.00 0.00 1-2

7/25/2016 9606 75 San Joaquin 24.30 24.70 730 1410 7.80 9.40 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

7/26/2016 3420 39 San Joaquin 25.60 26.10 730 1400 7.60 9.20 3.00 1.50 0.00 0.00 2.25 0.00 64 3.00 1.60 0.00 0.00 0-2

7/26/2016 3548 709 Stanislaus 26.90 27.30 845 1245 8.03 7.20 6.00 0.00 0.00 0.00 3.00 0.00 64 6.00 0.00 0.00 0.00 0-2

7/26/2016 8929 215 Sacramento 22.30 27.10 800 1500 6.90 5.20 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 0-2

7/26/2016 9123 109 Contra Costa 23.80 26.90 800 1230 6.83 7.01 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 2-4

7/26/2016 9371 75 San Joaquin 23.90 25.30 855 1435 6.90 7.60 4.75 0.50 0.00 0.00 3.50 0.00 64 4.75 0.53 0.00 0.00 2-4

7/26/2016 9606 74 San Joaquin 24.50 25.60 800 1335 7.30 9.40 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

7/27/2016 3420 39 San Joaquin 26.20 26.40 800 1200 7.20 8.90 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 0-2

7/27/2016 3548 708 Stanislaus 27.60 28.20 830 1145 8.54 8.10 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 0-2

7/27/2016 3738 12 San Joaquin 24.30 24.50 930 1130 9.90 9.70 1.00 0.00 0.00 0.00 0.50 0.00 64 1.00 0.00 0.00 0.00 4-6

7/27/2016 3738 61 San Joaquin 24.70 25.80 700 930 10.80 10.00 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 0-2

7/27/2016 8834 708 Stanislaus 27.60 30.20 830 1200 8.54 8.10 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 2-4

7/27/2016 9339 99 San Joaquin 25.30 26.00 930 1200 8.06 7.76 2.75 0.00 0.00 0.00 1.25 0.00 64 2.75 0.00 0.00 0.00 2-4

7/27/2016 9339 100 San Joaquin 24.50 25.90 800 930 6.83 6.94 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 2-4

7/27/2016 9371 77 San Joaquin 24.60 25.80 821 1420 5.60 6.80 5.25 0.00 0.00 0.00 3.25 0.00 64 5.25 0.00 0.00 0.00 2-4

7/27/2016 Merced 508 Merced 26.70 30.30 845 1420 7.71 10.90 0.00 0.19 0.00 0.00 0.09 0.00 96 0.00 0.25 0.00 0.00 0-2

7/28/2016 3548 709 Stanislaus 25.70 26.70 830 1030 9.21 9.00 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 2-4

7/28/2016 3548 710 Stanislaus 26.70 28.50 930 1145 9.00 8.70 3.50 0.00 0.00 0.00 1.75 0.00 64 3.50 0.00 0.00 0.00 2-4

7/28/2016 3738 37 San Joaquin 25.60 25.40 700 1130 11.00 11.00 2.50 2.00 0.00 0.00 2.00 0.00 120 2.50 2.13 0.00 0.00 0-2

7/28/2016 8834 710 Stanislaus 25.80 26.20 830 1030 9.25 8.86 2.75 0.00 0.00 0.00 1.50 0.00 64 2.75 0.00 0.00 0.00 0-2

7/28/2016 8834 711 Stanislaus 26.20 27.30 1030 1230 8.86 8.92 2.25 0.00 0.00 0.00 1.00 0.00 64 2.25 0.00 0.00 0.00 2-4

7/28/2016 9371 77 San Joaquin 24.50 27.40 815 1135 5.40 7.00 4.00 0.00 0.00 0.00 3.75 0.00 64 4.00 0.00 0.00 0.00 2-4

7/28/2016 Merced 408 Merced 27.10 28.90 1120 1340 5.15 6.87 0.00 3.00 0.00 0.00 0.02 0.00 96 0.00 4.00 0.00 0.00 2-4

7/28/2016 Merced 409 Merced 25.50 27.10 840 1120 5.15 5.41 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 0-2

7/29/2016 3548 99 Contra Costa 24.90 28.20 830 1300 7.20 8.60 6.00 0.00 0.00 0.00 3.00 0.00 64 6.00 0.00 0.00 0.00 2-4

7/29/2016 9371 75 San Joaquin 26.00 26.30 825 1033 5.80 8.60 2.00 0.00 0.00 0.00 1.50 0.00 64 2.00 0.00 0.00 0.00 0-2

7/29/2016 9371 291 San Joaquin 26.20 28.90 1058 1428 9.90 6.90 5.00 0.00 0.00 0.00 3.00 0.00 64 5.00 0.00 0.00 0.00 2-4

7/30/2016 3548 101 Contra Costa 24.60 27.10 830 1400 7.60 7.90 4.61 0.00 0.00 0.00 2.31 0.00 64 4.61 0.00 0.00 0.00 4-6

7/30/2016 3548 101 San Joaquin 24.60 27.10 830 1400 7.60 7.90 2.89 0.00 0.00 0.00 1.44 0.00 64 2.89 0.00 0.00 0.00 4-6

7/30/2016 9371 73 San Joaquin 28.40 28.10 1210 1418 12.30 12.90 4.00 0.00 0.00 0.00 2.25 0.00 64 4.00 0.00 0.00 0.00 4-6

7/30/2016 9371 291 San Joaquin 22.00 28.80 910 1156 6.20 15.10 3.50 0.00 0.00 0.00 1.50 0.00 64 3.50 0.00 0.00 0.00 2-4

284.05 301.05 0.00 0.00 297.91 0.00 284.05 322.67 0.00 0.00

- 70 -

Table B- 6. August 2016 Herbicide and Adjuvant Use

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

8/1/2016 3420 33 San Joaquin 24.50 25.20 900 1330 9.10 8.20 1.00 0.00 0.00 0.00 0.50 0.00 64 1.00 0.00 0.00 0.00 2-4

8/1/2016 3548 304 San Joaquin 25.50 26.10 900 1100 8.17 7.82 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 2-4

8/1/2016 3548 306 San Joaquin 26.10 26.90 1100 1400 7.82 7.50 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 2-4

8/1/2016 8834 304 San Joaquin 25.50 26.10 915 1130 8.17 7.82 2.75 0.00 0.00 0.00 1.25 0.00 64 2.75 0.00 0.00 0.00 2-4

8/1/2016 8834 306 San Joaquin 26.10 26.30 1145 1400 7.82 7.90 2.25 0.00 0.00 0.00 1.00 0.00 64 2.25 0.00 0.00 0.00 2-4

8/1/2016 8929 216 Sacramento 20.20 22.30 900 1130 8.40 8.10 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

8/1/2016 9123 101 San Joaquin 22.20 25.80 830 1400 7.17 7.01 4.50 0.00 0.00 0.00 2.25 0.00 64 4.50 0.00 0.00 0.00 4-6

8/1/2016 9371 45 San Joaquin 27.00 31.60 1031 1450 10.60 13.50 0.00 4.50 0.00 0.00 2.25 0.00 120 0.00 4.80 0.00 0.00 2-4

8/2/2016 3420 9 San Joaquin 25.20 25.50 930 1030 9.50 8.80 0.00 0.00 0.00 0.04 0.13 0.00 5.6 0.00 0.00 0.00 1.01 2-4

8/2/2016 3548 300 San Joaquin 26.20 28.20 1130 1100 7.20 7.00 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 2-4

8/2/2016 3548 301 San Joaquin 24.80 25.40 900 1400 7.04 7.30 3.50 0.00 0.00 0.00 1.75 0.00 64 3.50 0.00 0.00 0.00 0-2

8/2/2016 3738 26 San Joaquin 25.10 25.20 1300 1400 9.10 8.70 0.00 0.00 0.00 0.04 0.13 0.00 5.6 0.00 0.00 0.00 1.01 2-4

8/2/2016 3738 28 San Joaquin 24.40 25.00 1130 1230 7.40 8.00 0.00 0.00 0.00 0.04 0.13 0.00 5.6 0.00 0.00 0.00 1.01 2-4

8/2/2016 8834 303 San Joaquin 24.30 25.10 830 1230 7.21 8.14 3.50 0.00 0.00 0.00 1.25 0.00 64 3.50 0.00 0.00 0.00 2-4

8/2/2016 8929 40 San Joaquin 23.90 22.90 800 1300 5.60 8.00 0.00 6.00 0.00 0.00 2.50 0.00 120 0.00 6.40 0.00 0.00 4-6

8/2/2016 9122 76 San Joaquin 25.60 27.70 730 1430 9.30 7.30 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

8/2/2016 9123 52 San Joaquin 25.00 6.60 900 1230 6.91 8.47 0.00 3.75 0.00 0.00 1.75 0.00 120 0.00 4.00 0.00 0.00 0-2

8/2/2016 9123 55 San Joaquin 26.40 6.60 1300 1400 7.63 7.81 0.00 1.25 0.00 0.00 0.50 0.00 120 0.00 1.33 0.00 0.00 0-2

8/2/2016 9371 76 San Joaquin 22.90 25.70 825 1040 5.90 5.50 2.75 0.00 0.00 0.00 2.25 0.00 64 2.75 0.00 0.00 0.00 2-4

8/2/2016 9371 77 San Joaquin 25.80 30.10 1033 1337 5.90 8.20 2.25 0.00 0.00 0.00 2.50 0.00 64 2.25 0.00 0.00 0.00 2-4

8/2/2016 Merced 408 Merced 23.40 27.10 820 1340 5.83 6.96 0.00 0.11 0.00 0.00 0.05 0.00 96 0.00 0.15 0.00 0.00 6-8

8/3/2016 3420 31 San Joaquin 25.40 25.60 700 1030 9.60 8.10 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 0-2

8/3/2016 8929 215 Sacramento 24.20 25.20 800 1300 7.20 8.20 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

8/3/2016 9122 75 San Joaquin 25.10 27.30 800 1430 9.20 7.60 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

8/3/2016 9123 107 Contra Costa 26.20 26.90 1330 1500 8.10 7.93 1.25 0.00 0.00 0.00 0.75 0.00 64 1.25 0.00 0.00 0.00 2-4

8/3/2016 9371 16 San Joaquin 23.10 25.00 800 1100 7.10 8.40 1.50 0.00 0.00 0.00 1.25 0.00 64 1.50 0.00 0.00 0.00 2-4

8/3/2016 Merced 404 Merced 26.60 28.10 1200 1340 7.03 9.79 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 6-8

8/3/2016 Merced 405 Merced 25.00 26.60 1000 1200 5.86 7.03 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 6-8

8/3/2016 Merced 407 Merced 24.60 25.00 850 1000 5.66 5.86 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 6-8

8/4/2016 3420 32 San Joaquin 24.80 25.10 800 1330 9.70 7.20 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 4-6

8/4/2016 8834 311 Stanislaus 22.00 24.30 830 1345 7.20 7.12 6.50 0.00 0.00 0.00 2.50 0.00 64 6.50 0.00 0.00 0.00 4-6

8/4/2016 9123 98 Contra Costa 23.00 24.90 800 1330 8.51 8.07 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 2-4

8/4/2016 9371 82 San Joaquin 21.20 26.90 900 1259 5.90 11.80 3.75 0.00 0.00 0.00 2.25 0.00 64 3.75 0.00 0.00 0.00 6-8

8/4/2016 964121 19 San Joaquin 26.00 26.00 1100 1330 9.00 11.00 0.00 1.75 0.00 0.00 1.00 0.00 120 0.00 1.87 0.00 0.00 4-6

8/4/2016 964121 203 San Joaquin 25.00 25.00 900 930 8.80 8.90 0.00 0.25 0.00 0.00 0.13 0.00 120 0.00 0.27 0.00 0.00 4-6

8/4/2016 Merced 400 Merced 27.50 27.20 1305 1300 10.22 9.63 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 4-6

8/4/2016 Merced 401 Merced 26.40 27.50 1130 1300 8.84 10.22 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 4-6

8/4/2016 Merced 403 Merced 23.60 26.40 820 1100 5.21 8.84 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 4-6

8/5/2016 9122 74 San Joaquin 21.20 23.30 831 1435 5.40 5.60 7.50 0.00 0.00 0.00 3.75 0.00 64 7.50 0.00 0.00 0.00 4-6

8/5/2016 9123 102 Contra Costa 22.40 24.70 830 1430 7.57 7.93 7.50 0.00 0.00 0.00 3.25 0.00 64 7.50 0.00 0.00 0.00 6-8

8/5/2016 Merced 519 Merced 25.00 25.90 1210 1320 8.15 8.09 0.00 14.00 0.00 0.00 0.07 0.00 96 0.00 18.67 0.00 0.00 4-6

8/5/2016 Merced 529 Merced 16.30 18.40 810 1100 8.70 8.53 0.00 0.16 0.00 0.00 0.08 0.00 96 0.00 0.21 0.00 0.00 4-6

8/6/2016 8929 216 Sacramento 22.90 25.80 1010 1348 7.80 6.90 0.00 9.75 0.00 0.00 5.00 0.00 120 0.00 10.40 0.00 0.00 2-4

8/6/2016 8929 217 Sacramento 21.70 22.20 719 1000 7.50 5.70 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 6-8

8/8/2016 3420 32 San Joaquin 24.50 25.30 800 1430 8.20 8.60 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 0-2

8/8/2016 3548 20 Sacramento 22.30 25.80 830 1400 7.08 8.30 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 2-4

8/8/2016 3738 203 San Joaquin 26.00 26.20 730 1500 9.90 9.00 0.00 5.50 0.00 0.00 2.75 0.00 120 0.00 5.87 0.00 0.00 2-4

8/8/2016 8929 215 Sacramento 21.70 24.70 800 1400 2.30 5.30 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 2-4

- 71 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

8/8/2016 9122 78 San Joaquin 25.30 27.30 800 1130 8.60 10.70 0.00 8.50 0.00 0.00 3.50 0.00 120 0.00 9.07 0.00 0.00 0-2

8/8/2016 9123 37 San Joaquin 24.60 25.20 900 1300 8.93 8.75 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

8/8/2016 9371 80 San Joaquin 25.90 26.80 1231 1400 7.90 10.30 2.75 0.00 0.00 0.00 0.50 0.00 64 2.75 0.00 0.00 0.00 4-6

8/8/2016 9371 84 Contra Costa 24.00 24.20 915 1047 6.80 6.70 1.25 0.00 0.00 0.00 1.00 0.00 64 1.25 0.00 0.00 0.00 0-2

8/8/2016 9371 84 San Joaquin 25.60 26.40 1053 1211 7.60 6.20 1.50 0.00 0.00 0.00 1.00 0.00 64 1.50 0.00 0.00 0.00 2-4

8/8/2016 Merced 507 Merced 24.30 27.80 900 1400 7.43 8.18 0.00 0.23 0.00 0.00 12.00 0.00 96 0.00 0.31 0.00 0.00 0-2

8/8/2016 Merced 508 Merced 23.40 24.30 900 930 7.06 7.43 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 0-2

8/9/2016 3420 9 San Joaquin 25.60 25.10 800 1400 7.90 8.60 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 2-4

8/9/2016 3548 312 Stanislaus 20.50 21.70 900 1400 7.10 7.40 7.00 0.00 0.00 0.00 3.50 0.00 64 7.00 0.00 0.00 0.00 2-4

8/9/2016 3738 9 San Joaquin 25.10 25.00 930 1200 9.10 8.30 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 2-4

8/9/2016 3738 10 San Joaquin 24.60 24.00 730 900 7.60 8.00 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

8/9/2016 8834 312 Stanislaus 20.50 22.10 845 1130 7.10 7.35 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 2-4

8/9/2016 8929 215 Sacramento 23.10 26.40 800 1330 7.20 8.30 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

8/9/2016 9122 79 Alameda 25.60 25.80 830 1100 9.70 10.40 0.00 5.00 0.00 0.00 2.00 0.00 120 0.00 5.33 0.00 0.00 0-2

8/9/2016 9122 83 San Joaquin 26.30 27.10 1115 1430 7.60 8.30 0.00 3.50 0.00 0.00 1.50 0.00 120 0.00 3.73 0.00 0.00 2-4

8/9/2016 9123 98 San Joaquin 22.50 24.60 800 1200 8.29 7.98 5.25 0.00 0.00 0.00 2.50 0.00 64 5.25 0.00 0.00 0.00 2-4

8/9/2016 9123 102 Contra Costa 24.80 25.00 1330 1430 8.01 8.33 1.00 0.00 0.00 0.00 0.50 0.00 64 1.00 0.00 0.00 0.00 2-4

8/9/2016 9371 87 San Joaquin 25.80 28.30 1300 1450 7.50 6.90 2.22 0.00 0.00 0.00 0.68 0.00 64 2.22 0.00 0.00 0.00 2-4

8/9/2016 9371 87 Contra Costa 25.80 28.30 1200 1300 7.50 6.90 1.03 0.00 0.00 0.00 0.32 0.00 64 1.03 0.00 0.00 0.00 2-4

8/9/2016 9371 88 Contra Costa 22.50 26.10 1000 1200 6.10 7.80 1.50 0.00 0.00 0.00 0.50 0.00 64 1.50 0.00 0.00 0.00 2-4

8/9/2016 Merced 505 Merced 26.90 27.80 1300 1400 7.77 8.44 0.00 0.09 0.00 0.00 0.05 0.00 96 0.00 0.12 0.00 0.00 0-2

8/9/2016 Merced 506 Merced 22.80 26.90 815 1300 7.22 7.71 0.00 0.20 0.00 0.00 0.10 0.00 96 0.00 0.27 0.00 0.00 2-4

8/10/2016 3420 31 San Joaquin 25.20 26.20 730 1430 8.50 8.00 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 0-2

8/10/2016 3548 20 Sacramento 22.30 23.70 830 1400 7.30 7.60 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 2-4

8/10/2016 3738 30 San Joaquin 23.50 24.80 730 1130 7.60 8.40 4.50 0.00 0.00 0.00 2.25 0.00 64 4.50 0.00 0.00 0.00 0-2

8/10/2016 9122 74 San Joaquin 24.70 25.10 800 1400 7.10 8.30 0.00 10.50 0.00 0.00 5.50 0.00 120 0.00 11.20 0.00 0.00 0-2

8/10/2016 9123 107 Contra Costa 25.00 25.50 1300 1530 7.83 7.80 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 4-6

8/10/2016 9123 111 Contra Costa 23.10 23.40 1030 1130 7.59 7.60 0.50 0.00 0.00 0.00 0.25 0.00 64 0.50 0.00 0.00 0.00 4-6

8/10/2016 9371 75 San Joaquin 22.10 28.30 841 1423 1.00 12.80 6.25 0.00 0.00 0.00 1.50 0.00 64 6.25 0.00 0.00 0.00 2-4

8/11/2016 3420 18 Sacramento 24.80 25.30 800 1200 7.90 9.20 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

8/11/2016 3420 19 Sacramento 25.10 25.30 1230 1400 9.50 9.10 0.00 0.50 0.00 0.00 0.25 0.00 120 0.00 0.53 0.00 0.00 4-6

8/11/2016 3548 312 Stanislaus 23.30 23.80 830 1030 7.14 7.02 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 2-4

8/11/2016 3548 700 Stanislaus 23.80 23.80 1030 1330 7.02 7.04 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 2-4

8/11/2016 3738 18 San Joaquin 24.00 24.40 800 1330 10.20 8.10 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

8/11/2016 8834 312 Stanislaus 22.20 23.80 830 1030 6.87 7.02 1.25 0.00 0.00 0.00 0.75 0.00 64 1.25 0.00 0.00 0.00 2-4

8/11/2016 8834 700 Stanislaus 23.80 24.30 1030 1330 7.02 7.34 2.25 0.00 0.00 0.00 1.00 0.00 64 2.25 0.00 0.00 0.00 2-4

8/11/2016 8929 215 Sacramento 21.80 23.40 800 1400 8.60 8.10 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

8/11/2016 9122 72 San Joaquin 24.30 25.20 1145 1439 8.20 9.60 0.00 5.00 0.00 0.00 3.00 0.00 120 0.00 5.33 0.00 0.00 2-4

8/11/2016 9122 82 San Joaquin 23.90 24.10 845 1130 7.80 9.10 0.00 5.00 0.00 0.00 2.00 0.00 120 0.00 5.33 0.00 0.00 0-2

8/11/2016 9123 99 Contra Costa 24.40 28.20 1000 1430 7.61 7.02 5.75 0.00 0.00 0.00 2.75 0.00 64 5.75 0.00 0.00 0.00 4-6

8/11/2016 9339 107 Contra Costa 22.70 22.90 1000 1230 7.80 8.00 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 4-6

8/11/2016 9371 73 San Joaquin 23.70 24.90 830 1327 9.80 10.10 5.00 0.00 0.00 0.00 1.50 0.00 64 5.00 0.00 0.00 0.00 4-6

8/11/2016 9371 76 San Joaquin 28.80 28.80 1341 1433 11.80 11.60 1.50 0.00 0.00 0.00 0.50 0.00 64 1.50 0.00 0.00 0.00 2-4

8/11/2016 Merced 504 Merced 23.50 27.70 935 1345 7.52 9.38 0.00 0.16 0.00 0.00 0.08 0.00 96 0.00 0.21 0.00 0.00 2-4

8/11/2016 Merced 505 Merced 23.80 23.50 830 935 7.31 7.53 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 2-4

8/12/2016 3548 217 Sacramento 23.40 24.30 1200 1500 7.10 7.75 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 4-6

8/12/2016 3548 219 Sacramento 21.40 22.50 830 1130 7.71 7.40 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

8/12/2016 9122 45 San Joaquin 25.90 26.30 800 915 8.10 7.90 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 0-2

8/12/2016 9122 71 San Joaquin 26.50 27.10 950 1015 10.30 9.70 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 2-4

- 72 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

8/12/2016 9122 72 San Joaquin 24.70 28.50 1030 1845 14.50 18.60 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

8/12/2016 9371 72 San Joaquin 18.50 20.80 830 1530 28.10 25.30 4.75 0.00 0.00 0.00 2.75 0.00 64 4.75 0.00 0.00 0.00 2-4

8/12/2016 Merced 528 Merced 15.10 20.00 810 1305 9.31 9.39 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 0-2

8/13/2016 8929 215 Sacramento 22.40 23.00 800 1530 8.46 7.52 0.00 9.50 0.00 0.00 4.75 0.00 120 0.00 10.13 0.00 0.00 0-2

8/13/2016 9339 93 Contra Costa 24.80 25.10 900 1000 8.10 8.30 1.50 0.00 0.00 0.00 0.50 0.00 64 1.50 0.00 0.00 0.00 4-6

8/13/2016 9339 94 Contra Costa 25.30 25.70 1000 1330 8.10 7.90 3.50 0.00 0.00 0.00 1.50 0.00 64 3.50 0.00 0.00 0.00 4-6

8/13/2016 9371 47 San Joaquin 24.00 26.20 815 1405 2.20 2.00 6.75 0.00 0.00 0.00 4.25 0.00 64 6.75 0.00 0.00 0.00 2-4

8/15/2016 3420 12 San Joaquin 25.30 25.50 1230 1400 8.10 8.00 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 2-4

8/15/2016 3420 28 San Joaquin 25.20 25.40 830 1130 8.20 8.10 0.00 2.00 0.00 0.00 0.00 0.00 120 0.00 2.13 0.00 0.00 2-4

8/15/2016 3548 706 Stanislaus 24.20 24.70 930 1300 8.13 7.90 2.00 0.00 0.00 0.00 1.50 0.00 64 2.00 0.00 0.00 0.00 2-4

8/15/2016 3738 13 San Joaquin 24.10 24.60 800 1530 10.10 11.60 7.00 0.00 0.00 0.00 3.50 0.00 64 7.00 0.00 0.00 0.00 2-4

8/15/2016 8834 706 Stanislaus 24.20 24.30 930 1030 8.13 8.21 0.50 0.00 0.00 0.00 0.25 0.00 64 0.50 0.00 0.00 0.00 2-4

8/15/2016 8929 217 Sacramento 22.60 23.70 830 1100 9.30 8.40 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 4-6

8/15/2016 9122 77 San Joaquin 24.30 25.60 800 1400 9.30 7.20 0.00 9.50 0.00 0.00 4.00 0.00 120 0.00 10.13 0.00 0.00 0-2

8/15/2016 9371 8 San Joaquin 26.70 27.70 1013 1237 1.30 0.29 0.00 0.00 0.00 0.09 0.50 0.00 6 0.00 0.00 0.00 1.94 4-6

8/15/2016 Merced 410 Merced 24.10 27.40 1015 1350 6.37 6.62 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 4-6

8/15/2016 Merced 411 Merced 23.10 24.10 830 1015 6.76 6.37 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 4-6

8/16/2016 3420 35 San Joaquin 25.10 24.80 800 1100 8.50 9.10 1.00 0.00 0.00 0.00 0.50 0.00 64 1.00 0.00 0.00 0.00 0-2

8/16/2016 3420 36 San Joaquin 25.50 25.30 1200 1400 8.80 7.50 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 0-2

8/16/2016 3548 101 San Joaquin 22.80 23.70 900 1330 7.20 7.60 7.50 0.00 0.00 0.00 3.50 0.00 64 7.50 0.00 0.00 0.00 2-4

8/16/2016 3738 32 San Joaquin 23.40 24.00 730 1400 7.50 7.90 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 0-2

8/16/2016 8834 300 San Joaquin 24.40 26.70 945 1300 8.16 8.19 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 2-4

8/16/2016 8929 101 Contra Costa 22.90 26.20 830 1300 7.60 7.60 0.00 9.50 0.00 0.00 6.00 0.00 120 0.00 10.13 0.00 0.00 4-6

8/16/2016 9122 47 San Joaquin 25.90 26.30 1135 1500 10.30 9.30 0.00 2.50 0.00 0.00 1.50 0.00 120 0.00 2.67 0.00 0.00 2-4

8/16/2016 9122 48 San Joaquin 25.10 25.60 730 1130 7.90 8.30 0.00 7.50 0.00 0.00 3.50 0.00 120 0.00 8.00 0.00 0.00 0-2

8/16/2016 9123 103 Contra Costa 23.00 23.30 1015 1115 8.17 7.01 1.75 0.00 0.00 0.00 0.75 0.00 64 1.75 0.00 0.00 0.00 6-8

8/16/2016 9123 104 San Joaquin 21.70 23.10 900 1000 7.78 8.66 1.25 0.00 0.00 0.00 0.50 0.00 64 1.25 0.00 0.00 0.00 6-8

8/16/2016 9371 47 San Joaquin 26.10 32.10 1101 1328 1.80 6.30 3.50 0.00 0.00 0.00 1.25 0.00 64 3.50 0.00 0.00 0.00 2-4

8/16/2016 9371 48 San Joaquin 22.30 24.80 801 1030 6.20 5.00 4.00 0.00 0.00 0.00 1.50 0.00 64 4.00 0.00 0.00 0.00 2-4

8/16/2016 Merced 409 Merced 23.70 28.10 845 1400 5.47 8.81 0.00 0.14 0.00 0.00 0.07 0.00 96 0.00 0.19 0.00 0.00 2-4

8/17/2016 3420 15 San Joaquin 25.10 25.50 1130 1430 8.90 8.70 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 0-2

8/17/2016 3420 33 San Joaquin 25.10 25.30 745 1130 8.60 7.20 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 0-2

8/17/2016 3738 32 San Joaquin 23.00 24.20 630 1030 9.20 8.50 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 0-2

8/17/2016 3738 39 San Joaquin 23.00 23.60 1030 1230 11.00 9.20 0.50 2.00 0.00 0.00 1.25 0.00 64 0.50 2.13 0.00 0.00 0-2

8/17/2016 3738 42 San Joaquin 24.00 24.00 1300 1500 10.50 12.00 0.00 0.50 0.00 0.00 0.25 0.00 120 0.00 0.53 0.00 0.00 0-2

8/17/2016 8834 307 San Joaquin 23.30 23.50 830 945 8.20 8.07 1.25 0.00 0.00 0.00 0.50 0.00 64 1.25 0.00 0.00 0.00 0-2

8/17/2016 8834 308 San Joaquin 23.50 25.80 1000 1145 8.07 8.19 2.25 0.00 0.00 0.00 1.25 0.00 64 2.25 0.00 0.00 0.00 2-4

8/17/2016 8834 309 San Joaquin 25.80 27.80 1200 1445 8.19 8.21 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 2-4

8/17/2016 8929 205 San Joaquin 22.90 25.60 900 1500 7.60 6.40 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

8/17/2016 9122 74 San Joaquin 24.30 25.70 800 1430 7.20 9.10 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 0-2

8/17/2016 9123 17 San Joaquin 22.00 23.70 900 1000 7.60 7.31 1.25 0.00 0.00 0.00 0.75 0.00 64 1.25 0.00 0.00 0.00 2-4

8/17/2016 9123 19 Contra Costa 22.60 24.80 1030 1130 5.88 7.19 1.25 0.00 0.00 0.00 0.75 0.00 64 1.25 0.00 0.00 0.00 0-2

8/17/2016 9371 74 San Joaquin 23.80 25.80 821 1413 2.30 1.80 2.25 0.00 0.00 0.00 1.50 0.00 64 2.25 0.00 0.00 0.00 2-4

8/18/2016 3420 28 San Joaquin 25.70 26.20 730 1400 9.30 7.50 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 0-2

8/18/2016 8834 709 Stanislaus 23.60 27.70 900 1400 9.33 9.86 0.00 5.75 0.00 0.00 2.50 0.00 120 0.00 6.13 0.00 0.00 2-4

8/18/2016 8929 205 San Joaquin 22.90 25.60 900 1500 7.60 6.40 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

8/18/2016 9122 74 San Joaquin 23.10 23.90 800 1400 7.60 8.10 0.00 10.50 0.00 0.00 5.00 0.00 120 0.00 11.20 0.00 0.00 0-2

8/18/2016 9123 173 Contra Costa 22.90 25.20 1100 1430 6.83 10.40 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 2-4

8/18/2016 9371 74 San Joaquin 22.10 23.80 810 1355 2.60 2.10 4.50 0.00 0.00 0.00 2.50 0.00 64 4.50 0.00 0.00 0.00 2-4

- 73 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

8/18/2016 964121 14 San Joaquin 25.00 25.20 1000 1330 9.70 9.90 0.75 0.00 0.00 0.00 0.38 0.00 64 0.75 0.00 0.00 0.00 2-4

8/18/2016 964121 32 San Joaquin 23.10 23.20 1330 1400 8.10 8.90 0.25 0.00 0.00 0.00 0.13 0.00 64 0.25 0.00 0.00 0.00 0-2

8/18/2016 Merced 408 Merced 24.60 27.10 845 1335 5.49 7.21 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 2-4

8/19/2016 3738 215 Sacramento 22.90 23.20 800 1300 7.10 7.80 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

8/19/2016 9123 99 Contra Costa 25.80 26.70 1245 1430 7.17 7.49 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 2-4

8/19/2016 9123 99 San Joaquin 22.70 25.70 830 1230 7.93 7.33 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 6-8

8/19/2016 9339 101 San Joaquin 24.00 24.40 830 1430 7.70 7.50 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 4-6

8/19/2016 9371 74 San Joaquin 23.90 25.10 801 1505 8.00 6.50 10.00 0.00 0.00 0.00 5.00 0.00 64 10.00 0.00 0.00 0.00 2-4

8/19/2016 Merced 518 Merced 25.10 24.50 1200 1320 8.52 8.08 0.00 0.07 0.00 0.00 0.03 0.00 96 0.00 0.09 0.00 0.00 2-4

8/19/2016 Merced 528 Merced 16.50 19.50 810 1130 8.43 8.23 0.00 0.17 0.00 0.00 0.09 0.00 96 0.00 0.23 0.00 0.00 0-2

8/20/2016 8929 215 Sacramento 23.60 26.40 830 1500 7.36 8.42 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 2-4

8/20/2016 9371 101 San Joaquin 25.40 25.40 1245 1430 8.30 8.30 2.00 0.00 0.00 0.00 1.75 0.00 64 2.00 0.00 0.00 0.00 10+

8/20/2016 9371 101 Contra Costa 22.00 22.00 820 1228 5.90 5.90 4.50 0.00 0.00 0.00 2.00 0.00 64 4.50 0.00 0.00 0.00 4-6

8/22/2016 3738 214 Sacramento 21.90 22.30 1200 1430 7.90 7.50 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

8/22/2016 8834 311 Stanislaus 22.40 25.20 830 1330 8.77 7.86 0.00 5.00 0.00 0.00 3.50 0.00 120 0.00 5.33 0.00 0.00 2-4

8/22/2016 8929 215 Sacramento 22.30 23.40 1130 1500 8.20 8.20 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

8/22/2016 8929 217 Sacramento 21.70 22.90 830 1100 7.80 8.10 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

8/22/2016 9122 76 San Joaquin 23.40 24.80 800 1430 7.90 9.60 3.50 4.00 0.00 0.00 2.00 0.00 120 3.50 4.27 0.00 0.00 0-2

8/22/2016 9123 96 Contra Costa 22.80 23.90 1000 1330 7.61 7.33 3.50 0.00 0.00 0.00 1.75 0.00 64 3.50 0.00 0.00 0.00 4-6

8/22/2016 9371 76 San Joaquin 23.40 25.50 855 1430 7.60 8.50 6.50 0.00 0.00 0.00 5.00 0.00 64 6.50 0.00 0.00 0.00 2-4

8/22/2016 Merced 404 Merced 25.70 27.00 1250 1430 8.73 10.91 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 6-8

8/22/2016 Merced 405 Merced 23.50 25.70 945 1250 6.37 8.73 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 6-8

8/22/2016 Merced 407 Merced 23.50 23.50 845 945 6.00 6.37 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 6-8

8/23/2016 3420 10 San Joaquin 24.30 24.50 730 900 8.20 8.50 0.00 0.50 0.00 0.00 0.25 0.00 120 0.00 0.53 0.00 0.00 6-8

8/23/2016 3420 26 San Joaquin 24.40 24.60 1000 1300 9.20 9.40 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 6-8

8/23/2016 8737 215 Sacramento 22.30 23.40 1100 1400 7.70 7.00 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 4-6

8/23/2016 8834 313 Stanislaus 23.90 24.40 1230 1500 7.22 7.19 0.00 3.00 0.00 0.00 1.75 0.00 120 0.00 3.20 0.00 0.00 4-6

8/23/2016 8834 315 Stanislaus 22.70 23.90 1045 1230 7.55 7.22 0.00 2.25 0.00 0.00 1.25 0.00 120 0.00 2.40 0.00 0.00 4-6

8/23/2016 8834 316 Stanislaus 21.60 22.80 930 1045 7.42 7.85 0.00 1.75 0.00 0.00 1.00 0.00 120 0.00 1.87 0.00 0.00 2-4

8/23/2016 8929 216 San Joaquin 22.80 22.90 830 1400 8.10 7.30 0.00 7.25 0.00 0.00 3.50 0.00 120 0.00 7.73 0.00 0.00 6-8

8/23/2016 9122 75 San Joaquin 23.50 24.60 800 1330 7.10 8.70 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 0-2

8/23/2016 Merced 400 Merced 25.90 26.60 1250 1350 10.38 10.61 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 6-8

8/23/2016 Merced 401 Merced 24.30 25.90 1050 1250 7.96 10.38 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 6-8

8/23/2016 Merced 402 Merced 22.50 24.30 830 1050 5.76 7.96 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 4-6

8/24/2016 3420 26 San Joaquin 23.50 24.20 730 1330 7.50 8.90 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 0-2

8/24/2016 8834 313 Stanislaus 21.40 23.80 900 1345 8.05 7.78 0.00 4.75 0.00 0.00 2.00 0.00 120 0.00 5.07 0.00 0.00 2-4

8/24/2016 9122 84 Contra Costa 23.90 23.90 1200 1430 9.30 7.10 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 2-4

8/24/2016 9122 89 San Joaquin 22.30 23.10 800 1130 7.90 8.60 0.00 5.00 0.00 0.00 2.00 0.00 120 0.00 5.33 0.00 0.00 0-2

8/24/2016 9123 103 Contra Costa 21.50 21.30 1000 1000 8.13 8.01 1.00 0.00 0.00 0.00 0.50 0.00 64 1.00 0.00 0.00 0.00 4-6

8/24/2016 9123 103 San Joaquin 20.80 24.10 830 1400 8.26 7.88 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 6-8

8/24/2016 Merced 522 Merced 23.40 23.40 1120 1350 10.64 10.64 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 2-4

8/24/2016 Merced 523 Merced 18.20 20.60 900 1120 8.65 9.71 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 2-4

8/24/2016 Merced 524 Merced 18.00 18.20 810 900 8.05 8.65 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 2-4

8/25/2016 0006 92 San Joaquin 23.70 21.00 900 1330 8.00 8.54 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 4-6

8/25/2016 3738 19 Sacramento 21.10 21.40 1230 1530 9.70 10.10 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

8/25/2016 3738 20 Sacramento 20.40 21.00 700 1200 8.00 11.10 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 2-4

8/25/2016 8834 311 Stanislaus 20.70 20.80 900 1015 7.52 7.55 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 4-6

8/25/2016 8834 312 Stanislaus 20.80 22.90 1030 1300 7.55 8.11 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 6-8

8/25/2016 9123 104 San Joaquin 20.70 24.60 930 1500 8.50 8.21 6.50 0.00 0.00 0.00 3.25 0.00 64 6.50 0.00 0.00 0.00 4-6

- 74 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

8/25/2016 9371 16 San Joaquin 22.10 27.00 845 1410 7.90 7.50 6.50 0.00 0.00 0.00 3.50 0.00 64 6.50 0.00 0.00 0.00 4-6

8/25/2016 Merced 520 Merced 21.10 23.60 1105 1335 8.56 9.25 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 2-4

8/25/2016 Merced 521 Merced 19.40 21.10 850 1105 8.63 8.56 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 2-4

8/26/2016 8929 215 Sacramento 21.50 22.50 730 1530 8.20 7.70 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 4-6

8/26/2016 9123 92 San Joaquin 21.00 23.70 900 1330 8.59 8.03 4.50 0.00 0.00 0.00 2.25 0.00 64 4.50 0.00 0.00 0.00 4-6

8/26/2016 9339 92 Contra Costa 21.00 21.50 900 1300 8.50 8.30 3.60 0.00 0.00 0.00 1.80 0.00 64 3.60 0.00 0.00 0.00 4-6

8/26/2016 9339 92 San Joaquin 21.00 21.50 1300 1430 8.50 8.30 1.40 0.00 0.00 0.00 0.70 0.00 64 1.40 0.00 0.00 0.00 4-6

8/26/2016 9371 92 San Joaquin 21.00 23.70 900 1330 8.59 8.03 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 4-6

8/26/2016 Merced 526 Merced 12.40 19.20 850 1130 8.29 9.00 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 2-4

8/27/2016 9012 92 San Joaquin 21.10 21.50 930 1330 8.30 8.10 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 4-6

8/29/2016 3420 8 San Joaquin 23.90 24.20 800 1500 8.70 7.10 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 4-6

8/29/2016 3738 109 Contra Costa 21.10 21.30 900 1500 9.90 8.20 7.50 0.00 0.00 0.00 3.75 0.00 64 7.50 0.00 0.00 0.00 4-6

8/29/2016 9123 104 Contra Costa 21.10 22.70 1000 1500 9.32 10.30 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 4-6

8/29/2016 Merced 518 Merced 21.30 24.80 1040 1421 8.12 9.32 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 2-4

8/29/2016 Merced 519 Merced 20.10 21.30 810 1040 8.03 8.12 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 2-4

8/30/2016 0006 68 San Joaquin 21.20 22.40 900 1400 8.16 7.90 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 4-6

8/30/2016 3420 68 San Joaquin 22.10 22.60 800 1400 8.80 7.90 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 4-6

8/30/2016 3738 109 Contra Costa 21.20 21.40 830 1230 9.60 7.90 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 2-4

8/30/2016 8834 711 Stanislaus 21.80 23.50 830 1330 8.42 8.73 0.00 5.25 0.00 0.00 3.00 0.00 120 0.00 5.60 0.00 0.00 2-4

8/30/2016 9121 48 San Joaquin 24.30 24.70 1230 1430 8.10 9.60 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

8/30/2016 9121 49 San Joaquin 23.10 23.80 800 1230 7.20 9.30 0.00 7.50 0.00 0.00 3.00 0.00 120 0.00 8.00 0.00 0.00 0-2

8/30/2016 9123 108 Contra Costa 22.70 23.30 1330 1500 8.74 8.23 0.00 1.25 0.00 0.00 0.75 0.00 120 0.00 1.33 0.00 0.00 2-4

8/30/2016 9123 110 Contra Costa 20.30 21.50 800 1230 7.94 7.92 0.00 6.25 0.00 0.00 3.00 0.00 120 0.00 6.67 0.00 0.00 2-4

8/30/2016 9371 48 San Joaquin 23.30 24.40 1131 1230 7.80 8.80 1.50 0.00 0.00 0.00 1.00 0.00 64 1.50 0.00 0.00 0.00 4-6

8/30/2016 9371 49 San Joaquin 20.60 22.90 805 1125 6.40 6.70 4.50 0.00 0.00 0.00 2.50 0.00 64 4.50 0.00 0.00 0.00 2-4

8/30/2016 Merced 515 Merced 22.30 22.60 1220 1340 8.70 9.36 0.00 0.08 0.00 0.00 0.03 0.00 96 0.00 0.11 0.00 0.00 4-6

8/30/2016 Merced 517 Merced 20.70 22.30 845 1200 8.13 8.70 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 2-4

8/30/2016 Merced 518 Merced 20.60 20.70 820 845 8.13 8.13 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 2-4

8/31/2016 0006 68 San Joaquin 22.50 23.10 730 1230 7.80 7.90 6.00 0.00 0.00 0.00 3.00 0.00 64 6.00 0.00 0.00 0.00 0-2

8/31/2016 3420 68 San Joaquin 22.10 22.40 730 1230 8.50 7.10 3.50 0.00 0.00 0.00 1.75 0.00 64 3.50 0.00 0.00 0.00 0-2

8/31/2016 8834 311 Stanislaus 21.90 23.70 845 1300 7.14 7.31 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

8/31/2016 8929 206 San Joaquin 21.40 22.20 800 1300 8.30 7.90 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 4-6

8/31/2016 9122 84 Contra Costa 23.70 23.90 830 1430 10.30 10.90 0.00 5.00 0.00 0.00 2.00 0.00 120 0.00 5.33 0.00 0.00 2-4

8/31/2016 9123 100 San Joaquin 24.60 24.50 1230 1500 8.70 7.67 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 4-6

8/31/2016 Merced 514 Merced 21.90 24.10 1000 1300 8.12 8.97 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 4-6

8/31/2016 Merced 515 Merced 21.30 21.90 820 1000 8.29 8.12 0.00 0.09 0.00 0.00 0.05 0.00 96 0.00 0.12 0.00 0.00 2-4

368.25 425.96 0.00 0.22 398.59 0.00 368.25 458.81 0.00 4.96

- 75 -

Table B- 7. September 2016 Herbicide and Adjuvant Use

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

9/1/2016 0006 67 San Joaquin 21.60 22.70 830 1400 7.10 7.60 6.00 0.00 0.00 0.00 3.00 0.00 64 6.00 0.00 0.00 0.00 2-4

9/1/2016 3420 67 San Joaquin 22.20 22.80 800 1500 9.50 7.80 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 0-2

9/1/2016 8834 217 Sacramento 21.90 25.20 900 1445 8.20 8.30 0.00 9.50 0.00 0.00 4.00 0.00 120 0.00 10.13 0.00 0.00 2-4

9/1/2016 8929 216 Sacramento 21.90 22.00 900 1430 8.20 7.90 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 2-4

9/1/2016 9122 49 San Joaquin 22.50 21.80 800 1030 7.20 9.30 0.00 4.00 0.00 0.00 1.50 0.00 120 0.00 4.27 0.00 0.00 0-2

9/1/2016 9122 50 San Joaquin 22.70 23.20 1245 1530 8.30 9.60 0.00 5.00 0.00 0.00 1.75 0.00 120 0.00 5.33 0.00 0.00 2-4

9/1/2016 9122 52 San Joaquin 22.10 22.70 1030 1245 7.10 8.30 0.00 3.50 0.00 0.00 1.50 0.00 120 0.00 3.73 0.00 0.00 2-4

9/1/2016 9123 100 San Joaquin 21.60 24.20 1100 1430 6.99 7.09 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 0-2

9/1/2016 9123 104 San Joaquin 20.40 21.50 800 1030 7.67 7.22 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 0-2

9/1/2016 9371 49 San Joaquin 21.00 22.10 830 930 7.90 7.50 1.50 0.00 0.00 0.00 1.00 0.00 64 1.50 0.00 0.00 0.00 4-6

9/1/2016 9371 50 San Joaquin 22.10 26.80 944 1420 7.80 7.80 4.50 0.00 0.00 0.00 3.50 0.00 64 4.50 0.00 0.00 0.00 4-6

9/2/2016 0006 24 Sacramento 20.70 22.10 900 1430 8.17 7.90 6.00 0.00 0.00 0.00 3.00 0.00 64 6.00 0.00 0.00 0.00 4-6

9/2/2016 9121 74 San Joaquin 21.90 22.40 800 1400 7.10 8.70 7.50 0.00 0.00 0.00 3.00 0.00 64 7.50 0.00 0.00 0.00 0-2

9/2/2016 9371 23 Sacramento 21.80 23.80 1100 1400 7.60 7.50 3.00 0.00 0.00 0.00 2.00 0.00 64 3.00 0.00 0.00 0.00 2-4

9/2/2016 9371 24 Sacramento 20.60 21.80 930 1140 7.60 7.40 2.75 0.00 0.00 0.00 2.00 0.00 64 2.75 0.00 0.00 0.00 4-6

9/3/2016 9371 48 San Joaquin 21.60 22.10 830 1125 7.40 6.40 3.75 0.00 0.00 0.00 1.75 0.00 64 3.75 0.00 0.00 0.00 4-6

9/5/2016 8929 22 Sacramento 22.00 21.90 1200 1500 7.70 7.80 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 6-8

9/5/2016 8929 24 Sacramento 20.30 21.40 830 1200 8.30 7.90 0.00 8.50 0.00 0.00 4.25 0.00 120 0.00 9.07 0.00 0.00 6-8

9/5/2016 9122 47 San Joaquin 22.60 22.80 800 1400 9.30 7.50 5.00 0.00 0.00 0.00 2.00 0.00 64 5.00 0.00 0.00 0.00 0-2

9/5/2016 9371 47 San Joaquin 19.90 23.10 830 1400 5.40 5.60 5.25 0.00 0.00 0.00 1.50 0.00 64 5.25 0.00 0.00 0.00 2-4

9/6/2016 3420 12 San Joaquin 23.10 23.50 830 1400 8.60 8.20 3.50 0.00 0.00 0.00 1.75 0.00 64 3.50 0.00 0.00 0.00 0-2

9/6/2016 3738 67 San Joaquin 21.80 21.30 730 1430 7.80 8.70 5.00 0.00 0.00 0.00 2.50 0.00 64 5.00 0.00 0.00 0.00 0-2

9/6/2016 8834 302 San Joaquin 21.20 21.70 730 930 7.50 7.83 1.25 0.00 0.00 0.00 0.75 0.00 64 1.25 0.00 0.00 0.00 2-4

9/6/2016 8834 303 San Joaquin 21.70 22.80 930 1130 7.83 8.12 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 2-4

9/6/2016 8834 304 San Joaquin 22.80 24.30 1130 1430 8.12 8.30 4.25 0.00 0.00 0.00 2.00 0.00 64 4.25 0.00 0.00 0.00 4-6

9/6/2016 9122 51 San Joaquin 19.10 20.20 800 1400 7.60 9.30 0.00 8.00 0.00 0.00 3.50 0.00 120 0.00 8.53 0.00 0.00 0-2

9/6/2016 9371 85 Contra Costa 23.10 24.70 1100 1400 7.30 7.20 2.25 0.00 0.00 0.00 1.25 0.00 64 2.25 0.00 0.00 0.00 2-4

9/6/2016 9371 85 San Joaquin 21.20 23.10 830 1100 5.60 7.50 4.00 0.00 0.00 0.00 1.50 0.00 64 4.00 0.00 0.00 0.00 2-4

9/6/2016 Merced 512 Merced 21.20 23.80 820 1320 8.04 9.03 0.00 0.13 0.00 0.00 0.06 0.00 96 0.00 0.17 0.00 0.00 0-2

9/7/2016 3420 6 San Joaquin 24.10 23.80 830 1200 7.80 8.40 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 0-2

9/7/2016 3420 7 San Joaquin 23.80 23.90 1230 1430 8.40 8.70 1.00 0.00 0.00 0.00 0.50 0.00 64 1.00 0.00 0.00 0.00 2-4

9/7/2016 3738 65 San Joaquin 22.30 22.20 730 1530 8.70 9.20 10.00 0.00 0.00 0.00 5.00 0.00 64 10.00 0.00 0.00 0.00 0-2

9/7/2016 9122 81 San Joaquin 19.30 20.10 800 1240 9.70 7.30 3.50 0.00 0.00 0.00 1.50 0.00 64 3.50 0.00 0.00 0.00 0-2

9/7/2016 9371 80 San Joaquin 22.40 24.70 1030 1230 6.80 10.40 2.25 0.00 0.00 0.00 1.00 0.00 64 2.25 0.00 0.00 0.00 4-6

9/7/2016 9371 83 San Joaquin 22.00 22.30 830 1000 8.10 6.80 1.25 0.00 0.00 0.00 0.75 0.00 64 1.25 0.00 0.00 0.00 4-6

9/7/2016 Merced 413 Merced 21.40 22.40 1015 1330 7.12 6.22 0.00 0.16 0.00 0.00 0.08 0.00 96 0.00 0.21 0.00 0.00 6-8

9/8/2016 3420 28 San Joaquin 23.50 23.80 800 1500 7.50 8.10 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 0-2

9/8/2016 8929 203 San Joaquin 21.80 22.00 1000 1330 7.10 6.90 0.00 5.50 0.00 0.00 2.75 0.00 120 0.00 5.87 0.00 0.00 6-8

9/8/2016 8929 217 Sacramento 22.30 22.70 800 900 6.20 8.10 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 2-4

9/8/2016 9371 291 San Joaquin 22.30 24.10 830 1330 12.10 10.80 2.25 0.00 0.00 0.00 1.50 0.00 64 2.25 0.00 0.00 0.00 4-6

9/8/2016 Merced 410 Merced 24.60 24.40 1300 1340 8.50 7.91 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 4-6

9/8/2016 Merced 412 Merced 21.10 24.60 850 1300 5.63 8.50 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 2-4

9/9/2016 8929 262 Solano 19.00 22.30 800 1400 7.80 7.30 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 4-6

9/9/2016 9371 75 San Joaquin 22.70 25.70 900 1400 8.10 10.60 4.25 0.00 0.00 0.00 1.50 0.00 64 4.25 0.00 0.00 0.00 2-4

9/10/2016 9371 72 San Joaquin 23.30 24.40 1030 1130 10.40 11.90 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 2-4

9/10/2016 9371 74 San Joaquin 22.00 22.90 830 1000 9.60 10.00 2.25 0.00 0.00 0.00 1.25 0.00 64 2.25 0.00 0.00 0.00 2-4

9/10/2016 9371 82 San Joaquin 24.40 26.50 1130 1400 6.40 13.70 1.75 0.00 0.00 0.00 1.00 0.00 64 1.75 0.00 0.00 0.00 4-6

9/12/2016 0006 59 San Joaquin 20.60 21.30 930 1330 7.20 7.50 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 2-4

- 76 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

9/12/2016 3420 14 San Joaquin 22.10 22.70 800 1230 7.90 8.90 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 2-4

9/12/2016 8929 215 Sacramento 21.20 22.40 900 1400 8.70 8.30 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 4-6

9/12/2016 9122 82 San Joaquin 20.10 20.90 800 1430 8.30 9.10 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

9/12/2016 9123 117 Contra Costa 20.00 20.60 800 1230 6.87 8.15 4.50 0.00 0.00 0.00 2.25 0.00 64 4.50 0.00 0.00 0.00 0-2

9/12/2016 9371 73 San Joaquin 22.30 23.70 955 1158 9.00 9.80 1.50 0.00 0.00 0.00 1.00 0.00 64 1.50 0.00 0.00 0.00 6-8

9/12/2016 9371 82 San Joaquin 21.40 20.80 800 938 9.00 9.70 0.00 0.00 0.00 0.00 0.00 0.00 64 0.00 0.00 0.00 0.00 6-8

9/12/2016 Merced 511 Merced 21.90 24.80 840 1330 8.06 8.45 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 2-4

9/13/2016 0006 117 Contra Costa 19.10 19.70 1100 1300 7.10 8.00 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 2-4

9/13/2016 3420 68 San Joaquin 22.60 23.10 800 1430 8.10 9.10 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 0-2

9/13/2016 8929 219 Sacramento 20.30 21.80 900 1330 8.92 9.12 0.00 6.50 0.00 0.00 3.25 0.00 120 0.00 6.93 0.00 0.00 2-4

9/13/2016 9122 82 San Joaquin 19.70 20.30 800 1420 7.80 8.90 0.00 7.50 0.00 0.00 3.50 0.00 120 0.00 8.00 0.00 0.00 0-2

9/13/2016 9123 116 Contra Costa 22.00 22.90 1300 1500 7.91 7.81 1.50 0.00 0.00 0.00 0.75 0.00 64 1.50 0.00 0.00 0.00 4-6

9/13/2016 9123 117 Contra Costa 19.50 21.80 830 1230 7.10 8.33 3.50 0.00 0.00 0.00 1.75 0.00 64 3.50 0.00 0.00 0.00 2-4

9/13/2016 9371 291 San Joaquin 18.90 22.00 845 1320 10.30 14.70 4.50 0.00 0.00 0.00 2.50 0.00 64 4.50 0.00 0.00 0.00 4-6

9/13/2016 Merced 508 Merced 22.00 21.40 1125 1205 8.24 7.35 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 4-6

9/13/2016 Merced 509 Merced 21.10 22.00 1000 1125 7.88 8.24 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 4-6

9/13/2016 Merced 510 Merced 21.40 21.10 850 1000 7.70 7.88 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 2-4

9/14/2016 0006 58 San Joaquin 20.80 21.30 1130 1330 7.80 7.40 3.75 0.00 0.00 0.00 1.50 0.00 64 3.75 0.00 0.00 0.00 2-4

9/14/2016 0006 59 San Joaquin 20.20 20.80 830 1130 8.01 7.80 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 2-4

9/14/2016 3420 14 San Joaquin 21.30 22.20 800 1430 8.60 9.20 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 0-2

9/14/2016 3738 65 San Joaquin 21.10 21.40 700 1500 8.80 8.70 8.00 0.00 0.00 0.00 4.00 0.00 64 8.00 0.00 0.00 0.00 0-2

9/14/2016 8834 300 San Joaquin 19.80 21.40 830 1130 7.41 7.89 3.00 0.00 0.00 0.00 1.50 0.00 64 3.00 0.00 0.00 0.00 0-2

9/14/2016 8834 301 San Joaquin 21.90 23.90 1145 1415 7.50 7.17 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 2-4

9/14/2016 9122 75 San Joaquin 19.70 21.60 800 1330 10.60 7.80 5.00 0.00 0.00 0.00 2.00 0.00 120 2.67 0.00 0.00 0.00 0-2

9/14/2016 9123 113 Contra Costa 21.30 22.00 1300 1530 7.99 7.85 3.50 0.00 0.00 0.00 1.75 0.00 64 3.50 0.00 0.00 0.00 2-4

9/14/2016 9123 114 Contra Costa 19.70 21.30 900 1300 7.33 7.55 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 4-6

9/14/2016 9371 76 San Joaquin 20.60 24.90 830 1330 9.30 11.90 6.50 0.00 0.00 0.00 3.00 0.00 64 6.50 0.00 0.00 0.00 2-4

9/14/2016 Merced 507 Merced 20.70 22.00 1020 1320 7.57 8.87 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 4-6

9/14/2016 Merced 508 Merced 20.20 20.70 900 1020 7.56 7.57 0.00 0.02 0.00 0.00 0.10 0.00 96 0.00 0.03 0.00 0.00 6-8

9/15/2016 3420 61 San Joaquin 22.10 22.40 800 1130 7.90 8.10 2.75 0.00 0.00 0.00 1.25 0.00 64 2.75 0.00 0.00 0.00 0-2

9/15/2016 3420 62 San Joaquin 22.40 23.20 1200 1500 8.00 8.30 2.75 0.00 0.00 0.00 1.25 0.00 64 2.75 0.00 0.00 0.00 0-2

9/15/2016 3738 14 San Joaquin 21.10 21.10 830 930 7.50 7.30 1.00 0.00 0.00 0.00 0.50 0.00 64 1.00 0.00 0.00 0.00 0-2

9/15/2016 3738 32 San Joaquin 21.00 21.10 700 830 8.20 8.80 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 0-2

9/15/2016 3738 58 San Joaquin 21.40 21.40 1130 1430 8.60 8.70 4.00 0.00 0.00 0.00 2.00 0.00 64 4.00 0.00 0.00 0.00 0-2

9/15/2016 3738 68 San Joaquin 21.20 21.00 930 1100 8.80 8.10 2.00 0.00 0.00 0.00 1.00 0.00 64 2.00 0.00 0.00 0.00 0-2

9/15/2016 8834 303 San Joaquin 20.20 21.90 830 1100 7.10 6.55 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 0-2

9/15/2016 8834 304 San Joaquin 22.20 22.90 1115 1345 7.47 8.30 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 2-4

9/15/2016 8929 214 Sacramento 17.20 17.80 800 1400 6.80 7.20 0.00 7.00 0.00 0.00 3.50 0.00 120 0.00 7.47 0.00 0.00 0-2

9/15/2016 9122 78 San Joaquin 20.90 22.90 1135 1430 7.60 9.00 0.50 2.50 0.00 0.00 1.50 0.00 64 0.50 2.67 0.00 0.00 0-2

9/15/2016 9122 79 Alameda 20.30 20.90 800 1100 9.20 7.60 2.00 0.00 0.00 0.00 0.75 0.00 64 2.00 0.00 0.00 0.00 0-2

9/15/2016 9123 105 Contra Costa 21.60 27.80 1200 1500 7.92 7.13 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 2-4

9/15/2016 9123 171 Contra Costa 21.10 21.70 830 1030 8.22 7.91 2.50 0.00 0.00 0.00 1.25 0.00 64 2.50 0.00 0.00 0.00 2-4

9/15/2016 9371 83 Contra Costa 20.60 21.00 930 1000 8.80 8.60 0.25 0.00 0.00 0.00 0.25 0.00 64 0.25 0.00 0.00 0.00 2-4

9/15/2016 9371 83 San Joaquin 20.80 20.80 830 930 8.30 8.10 1.00 0.00 0.00 0.00 0.50 0.00 64 1.00 0.00 0.00 0.00 2-4

9/15/2016 9371 84 Contra Costa 20.60 21.80 1000 1200 8.60 8.30 1.25 0.00 0.00 0.00 0.50 0.00 64 1.25 0.00 0.00 0.00 2-4

9/15/2016 Merced 505 Merced 23.10 23.90 1300 1400 8.16 8.80 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 0-2

9/15/2016 Merced 506 Merced 19.80 23.10 930 1300 7.62 8.16 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 0-2

9/15/2016 Merced 507 Merced 19.70 19.80 820 930 7.13 7.62 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 0-2

9/16/2016 0006 50 San Joaquin 20.00 21.30 830 1400 8.60 7.50 0.00 9.00 0.00 0.00 4.50 0.00 120 0.00 9.60 0.00 0.00 2-4

- 77 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

9/16/2016 8929 252 Sacramento 18.60 19.10 830 1430 8.20 7.80 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 2-4

9/16/2016 9122 50 San Joaquin 23.20 23.80 1055 1305 9.70 9.20 0.00 6.00 0.00 0.00 2.00 0.00 120 0.00 6.40 0.00 0.00 4-6

9/16/2016 9122 52 San Joaquin 20.60 21.80 855 1038 6.60 7.40 0.00 4.00 0.00 0.00 2.50 0.00 120 0.00 4.27 0.00 0.00 2-4

9/16/2016 9123 109 Contra Costa 20.20 22.40 800 1500 7.52 7.74 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 2-4

9/16/2016 9339 109 Contra Costa 21.30 21.60 800 1400 8.50 8.30 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 4-6

9/16/2016 Merced 519 Merced 19.20 20.20 1200 1340 8.04 8.26 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 0-2

9/16/2016 Merced 529 Merced 15.80 18.50 800 1130 8.38 8.08 0.00 0.09 0.00 0.00 0.05 0.00 96 0.00 0.12 0.00 0.00 0-2

9/17/2016 8929 263 Solano 19.00 19.60 830 1300 8.10 8.40 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 2-4

9/17/2016 9371 81 San Joaquin 22.20 23.40 800 1115 10.10 10.50 0.00 2.50 0.00 0.00 1.50 0.00 120 0.00 2.67 0.00 0.00 0-2

9/17/2016 9371 84 Contra Costa 25.30 24.30 1135 1400 12.80 10.80 0.00 2.25 0.00 0.00 1.50 0.00 120 0.00 2.40 0.00 0.00 2-4

9/19/2016 3420 59 San Joaquin 24.50 24.60 1200 1400 8.60 8.30 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 0-2

9/19/2016 3420 61 San Joaquin 24.30 24.40 1000 1130 8.50 8.70 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 0-2

9/19/2016 3420 62 San Joaquin 24.10 24.30 800 930 8.50 8.60 0.00 0.50 0.00 0.00 0.25 0.00 120 0.00 0.53 0.00 0.00 0-2

9/19/2016 3548 59 San Joaquin 23.30 25.90 1130 1430 7.90 7.10 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 2-4

9/19/2016 3548 61 San Joaquin 22.70 23.10 1120 1130 7.40 7.80 0.00 0.29 0.00 0.00 0.14 0.00 120 0.00 0.31 0.00 0.00 2-4

9/19/2016 3548 62 San Joaquin 22.70 23.10 900 1120 7.40 7.80 0.00 3.71 0.00 0.00 1.86 0.00 120 0.00 3.96 0.00 0.00 2-4

9/19/2016 3738 6 San Joaquin 21.10 24.60 1000 1100 7.80 8.10 0.00 0.00 0.25 0.00 0.13 0.00 32 0.00 0.00 1.00 0.00 0-2

9/19/2016 3738 28 San Joaquin 24.60 24.20 1130 1230 8.10 9.10 0.00 0.00 0.25 0.00 0.13 0.00 32 0.00 0.00 1.00 0.00 0-2

9/19/2016 8834 700 Stanislaus 21.30 24.50 845 1230 8.92 8.19 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 2-4

9/19/2016 8929 204 San Joaquin 19.00 20.00 930 1430 7.30 6.90 0.00 7.00 0.00 0.00 3.50 0.00 120 0.00 7.47 0.00 0.00 0-2

9/19/2016 9122 48 San Joaquin 19.30 21.80 945 1400 7.30 9.50 0.00 6.00 0.00 0.00 2.75 0.00 120 0.00 6.40 0.00 0.00 0-2

9/19/2016 9339 116 Contra Costa 21.80 25.70 830 1430 7.62 7.32 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 0-2

9/19/2016 9371 84 Contra Costa 22.20 23.30 830 1028 10.00 7.00 0.00 3.00 0.00 0.00 1.00 0.00 120 0.00 3.20 0.00 0.00 2-4

9/19/2016 9371 85 Contra Costa 23.80 26.80 1030 1222 7.30 7.40 0.00 2.50 0.00 0.00 1.50 0.00 120 0.00 2.67 0.00 0.00 0-2

9/19/2016 9371 85 San Joaquin 23.90 26.30 1230 1315 8.60 8.90 0.00 1.25 0.00 0.00 0.75 0.00 120 0.00 1.33 0.00 0.00 0-2

9/19/2016 Merced 504 Merced 22.00 23.60 1030 1410 7.25 7.80 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 0-2

9/19/2016 Merced 505 Merced 21.90 22.00 930 1030 7.19 7.25 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 0-2

9/20/2016 0006 65 San Joaquin 20.80 22.40 900 1400 7.60 7.10 0.00 7.50 0.00 0.00 3.50 0.00 120 0.00 8.00 0.00 0.00 2-4

9/20/2016 3420 60 San Joaquin 23.80 24.10 800 1400 8.20 9.10 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 0-2

9/20/2016 8929 204 San Joaquin 19.20 20.10 800 1300 6.80 7.20 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 2-4

9/20/2016 9122 75 San Joaquin 22.10 23.40 800 1400 8.20 7.60 0.00 7.50 0.00 0.00 3.00 0.00 120 0.00 8.00 0.00 0.00 0-2

9/20/2016 9339 117 Contra Costa 21.40 23.70 830 1130 7.01 7.46 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 4-6

9/20/2016 9371 86 San Joaquin 23.30 24.00 1058 1211 7.00 7.20 0.00 2.00 0.00 0.00 0.75 0.00 120 0.00 2.13 0.00 0.00 2-4

9/20/2016 9371 87 San Joaquin 25.90 25.60 1229 1335 10.00 9.90 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 4-6

9/20/2016 9371 88 Contra Costa 21.10 23.60 915 1042 2.80 8.50 0.00 2.75 0.00 0.00 1.25 0.00 120 0.00 2.93 0.00 0.00 0-2

9/20/2016 Merced 503 Merced 22.40 24.80 830 1330 7.45 7.63 0.00 0.13 0.00 0.00 0.06 0.00 96 0.00 0.17 0.00 0.00 0-2

9/21/2016 3420 7 San Joaquin 23.80 23.50 900 1200 8.50 9.20 0.00 0.50 0.00 0.00 0.25 0.00 120 0.00 0.53 0.00 0.00 2-4

9/21/2016 3738 7 San Joaquin 22.60 22.40 1000 1300 9.10 8.60 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

9/21/2016 8929 215 Sacramento 18.00 21.10 730 1400 7.10 5.30 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 6-8

9/21/2016 9122 76 San Joaquin 22.30 23.10 830 1400 9.50 7.60 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 0-2

9/21/2016 9339 117 Contra Costa 21.30 20.90 830 1030 7.21 7.36 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 2-4

9/21/2016 9371 76 San Joaquin 22.90 22.60 945 1150 8.00 7.90 0.00 0.75 0.00 0.00 0.50 0.00 120 0.00 0.80 0.00 0.00 8-10

9/22/2016 8929 215 Sacramento 20.10 22.50 800 1330 5.30 7.80 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

9/22/2016 9122 47 San Joaquin 20.60 21.80 830 1400 7.20 9.60 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 2.4

9/22/2016 9371 48 San Joaquin 20.10 22.50 905 1505 6.80 6.90 0.00 2.00 0.00 0.00 1.25 0.00 120 0.00 2.13 0.00 0.00 0-2

9/23/2016 9123 109 Contra Costa 19.70 22.40 830 1530 8.32 7.41 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 2-4

9/23/2016 9339 109 Contra Costa 20.30 20.70 830 1500 7.50 7.90 0.00 7.50 0.00 0.00 3.00 0.00 96 0.00 10.00 0.00 0.00 4-6

9/23/2016 9371 74 San Joaquin 19.40 21.80 837 1210 0.95 8.70 0.00 4.25 0.00 0.00 1.00 0.00 120 0.00 4.53 0.00 0.00 6-8

9/23/2016 9371 75 San Joaquin 24.10 24.40 1221 1413 11.00 10.60 0.00 3.75 0.00 0.00 1.25 0.00 120 0.00 4.00 0.00 0.00 4-6

9/23/2016 Merced 528 Merced 15.40 17.70 1010 1400 9.78 9.64 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 2-4

- 78 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

9/24/2016 8929 252 Sacramento 19.70 20.80 800 1500 7.80 8.20 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 4-6

9/24/2016 9371 72 San Joaquin 22.10 26.00 831 1430 8.30 8.00 0.00 5.25 0.00 0.00 2.00 0.00 120 0.00 5.60 0.00 0.00 4-6

9/26/2016 3420 69 San Joaquin 24.20 24.60 800 1430 7.20 9.10 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

9/26/2016 3738 65 San Joaquin 20.70 21.40 800 1500 8.00 9.20 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 0-2

9/26/2016 8834 312 Stanislaus 20.10 22.10 830 1200 7.14 8.55 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

9/26/2016 8834 700 Stanislaus 22.10 24.50 1210 1430 8.55 8.79 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

9/26/2016 8929 212 Sacramento 18.10 19.70 1230 1430 5.80 6.20 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 0-2

9/26/2016 8929 215 Sacramento 18.10 19.00 900 1230 7.20 6.80 0.00 4.50 0.00 0.00 2.25 0.00 120 0.00 4.80 0.00 0.00 0-2

9/26/2016 9122 84 San Joaquin 20.70 22.50 800 1410 9.70 7.50 0.00 8.00 0.00 0.00 3.50 0.00 120 0.00 8.53 0.00 0.00 0-2

9/26/2016 9339 117 Contra Costa 21.20 22.30 830 1500 9.04 7.88 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 0-2

9/26/2016 9371 84 Contra Costa 21.00 25.80 845 1145 6.70 8.00 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 2-4

9/26/2016 9371 85 Contra Costa 25.20 25.10 1220 1335 7.90 7.40 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 2-4

9/26/2016 Merced 503 Merced 20.10 20.10 800 820 7.22 7.22 0.00 0.47 0.00 0.00 0.23 0.00 96 0.00 0.63 0.00 0.00 0-2

9/27/2016 3420 69 San Joaquin 24.30 24.30 730 1430 8.50 7.50 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 0-2

9/27/2016 3738 19 Sacramento 21.20 21.20 1230 1500 12.90 8.90 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 2-4

9/27/2016 3738 20 Sacramento 21.60 21.90 1000 1230 9.20 10.60 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 0-2

9/27/2016 8834 312 Stanislaus 19.80 22.80 815 1145 8.34 9.20 0.00 5.00 0.00 0.00 2.00 0.00 120 0.00 5.33 0.00 0.00 2-4

9/27/2016 8834 700 Stanislaus 22.80 24.90 1145 1430 9.20 8.75 0.00 2.50 0.00 0.00 1.50 0.00 120 0.00 2.67 0.00 0.00 2-4

9/27/2016 8929 210 San Joaquin 19.30 20.50 830 1200 8.17 8.00 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 0-2

9/27/2016 9122 56 San Joaquin 20.60 21.90 810 120 7.40 8.70 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 0-2

9/27/2016 9123 93 Contra Costa 23.60 24.90 900 1300 10.20 7.99 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 0-2

9/27/2016 Merced 503 Merced 21.50 23.70 920 1400 7.73 7.11 0.00 0.38 0.00 0.00 0.19 0.00 96 0.00 0.51 0.00 0.00 0-2

9/28/2016 3420 44 San Joaquin 23.20 24.10 800 1500 8.30 9.20 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 0-2

9/28/2016 3738 18 San Joaquin 21.30 21.10 1200 1530 9.90 12.00 0.00 3.75 0.00 0.00 1.75 0.00 120 0.00 4.00 0.00 0.00 0-2

9/28/2016 3738 18 Sacramento 21.10 21.30 800 1130 10.10 8.60 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

9/28/2016 8834 311 Stanislaus 20.60 25.90 830 1430 8.75 7.33 0.00 8.75 0.00 0.00 4.75 0.00 120 0.00 9.33 0.00 0.00 2-4

9/28/2016 9122 56 San Joaquin 20.70 22.10 800 1300 10.30 8.50 0.00 7.00 0.00 0.00 3.00 0.00 120 0.00 7.47 0.00 0.00 0-2

9/28/2016 9123 93 Contra Costa 22.70 24.00 800 1330 8.22 7.43 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 0-2

9/28/2016 9371 56 San Joaquin 21.60 24.90 930 1330 8.40 8.80 0.00 9.50 0.00 0.00 3.75 0.00 120 0.00 10.13 0.00 0.00 2-4

9/28/2016 Merced 501 Merced 22.10 23.20 1200 1400 7.41 7.60 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 0-2

9/28/2016 Merced 502 Merced 21.30 22.10 840 1200 7.50 7.41 0.00 0.20 0.00 0.00 0.10 0.00 96 0.00 0.27 0.00 0.00 0-2

9/29/2016 3420 8 San Joaquin 23.60 24.30 800 1430 8.70 9.10 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

9/29/2016 8834 310 Stanislaus 22.00 25.30 900 1430 7.24 7.81 0.00 8.50 0.00 0.00 5.00 0.00 120 0.00 9.07 0.00 0.00 2-4

9/29/2016 8929 200 San Joaquin 21.20 21.70 1200 1500 7.90 8.30 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

9/29/2016 8929 204 San Joaquin 20.10 20.80 830 1200 8.50 8.40 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 0-2

9/29/2016 9371 56 San Joaquin 21.10 23.30 900 1118 7.80 7.80 0.00 3.00 0.00 0.00 1.25 0.00 120 0.00 3.20 0.00 0.00 2-4

9/29/2016 9371 58 San Joaquin 22.00 26.20 1130 1445 7.50 8.90 0.00 7.00 0.00 0.00 2.75 0.00 120 0.00 7.47 0.00 0.00 2-4

9/29/2016 Merced 500 Merced 20.90 23.10 1000 1200 7.02 8.42 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 2-4

9/29/2016 Merced 501 Merced 20.50 20.90 830 1000 7.09 7.02 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 2-4

9/30/2016 8929 252 Sacramento 19.20 19.40 900 1200 8.90 9.10 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 6-8

9/30/2016 8929 262 Solano 20.10 20.20 1200 1400 9.40 8.60 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 6-8

9/30/2016 9123 105 Contra Costa 19.90 22.00 800 1500 7.22 7.77 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 2-4

9/30/2016 9606 74 San Joaquin 20.20 21.50 830 1400 2.60 12.50 0.00 7.50 0.00 0.00 3.00 0.00 120 0.00 8.00 0.00 0.00 6-8

9/30/2016 Merced 410 Merced 22.00 22.70 1205 1330 7.07 7.38 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 4-6

9/30/2016 Merced 412 Merced 20.10 22.00 925 1205 5.54 7.07 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 4-6

214.25 468.59 0.50 0.00 329.76 0.00 211.92 502.45 2.00 0.00

- 79 -

Table B- 8. October 2016 Herbicide and Adjuvant Use

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

10/3/2016 Merced 501 Merced 17.60 17.50 1225 1330 7.86 9.19 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 4-6

10/3/2016 Merced 502 Merced 16.10 17.60 850 1225 7.82 7.86 0.00 0.17 0.00 0.00 0.09 0.00 96 0.00 0.23 0.00 0.00 2-4

10/4/2016 3420 28 San Joaquin 21.90 22.30 730 1130 9.10 7.30 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

10/4/2016 3738 19 Sacramento 17.20 17.90 730 1100 8.80 7.90 0.00 7.25 0.00 0.00 3.75 0.00 120 0.00 7.73 0.00 0.00 2-4

10/4/2016 3738 106 Contra Costa 17.60 17.70 1130 1500 9.80 8.40 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 4-6

10/4/2016 8834 312 Stanislaus 15.40 16.30 815 1000 7.53 8.13 0.00 2.75 0.00 0.00 1.50 0.00 120 0.00 2.93 0.00 0.00 2-4

10/4/2016 8834 700 Stanislaus 16.30 19.80 1030 1430 8.13 8.22 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 4-6

10/4/2016 8929 215 Sacramento 19.80 20.10 1200 1500 9.20 8.70 0.00 3.50 0.00 0.00 1.75 0.00 120 0.00 3.73 0.00 0.00 2-4

10/4/2016 8929 216 Sacramento 19.20 19.70 1000 1200 8.10 7.80 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

10/4/2016 9371 53 San Joaquin 19.10 22.20 900 1330 6.60 10.30 0.00 4.25 0.00 0.00 1.50 0.00 120 0.00 4.53 0.00 0.00 4-6

10/4/2016 Merced 409 Merced 16.50 18.40 1000 1300 7.78 8.55 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 6-8

10/4/2016 Merced 410 Merced 16.30 16.50 930 1000 7.93 7.78 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 6-8

10/5/2016 8789 30 San Joaquin 18.00 19.40 830 1400 8.10 7.90 0.00 9.50 0.00 0.00 4.50 0.00 120 0.00 10.13 0.00 0.00 2-4

10/5/2016 8929 200 San Joaquin 18.90 19.10 900 1200 8.20 7.90 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

10/5/2016 9123 91 Contra Costa 18.40 19.70 900 1230 7.84 7.41 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 4-6

10/5/2016 9371 67 San Joaquin 20.90 21.30 1000 1425 9.80 9.60 0.00 5.00 0.00 0.00 2.00 0.00 120 0.00 5.33 0.00 0.00 4-6

10/5/2016 9606 76 San Joaquin 18.20 19.60 800 1430 10.60 7.00 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

10/5/2016 Merced 408 Merced 16.20 18.30 900 1330 7.72 8.82 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 4-6

10/6/2016 3420 37 San Joaquin 21.40 22.50 830 1200 8.90 7.10 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

10/6/2016 8929 212 Sacramento 19.70 16.00 830 1000 9.20 8.20 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 0-2

10/6/2016 8929 215 Sacramento 18.70 18.50 1030 1230 7.30 6.90 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

10/6/2016 9371 67 San Joaquin 18.30 22.90 926 1348 8.30 7.30 0.00 7.00 0.00 0.00 1.25 0.00 120 0.00 7.47 0.00 0.00 6-8

10/6/2016 9606 46 San Joaquin 17.90 19.10 800 1400 7.60 8.20 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 0-2

10/6/2016 Merced 410 Merced 17.50 17.90 1135 1330 7.29 8.06 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 6-8

10/6/2016 Merced 411 Merced 15.10 17.50 830 1135 6.05 7.29 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 4-6

10/7/2016 8929 241 Sacramento 16.80 17.90 900 1500 8.30 11.20 0.00 6.50 0.00 0.00 3.25 0.00 120 0.00 6.93 0.00 0.00 0-2

10/7/2016 9371 76 San Joaquin 18.20 19.80 830 1130 6.60 8.20 0.00 6.75 0.00 0.00 2.50 0.00 120 0.00 7.20 0.00 0.00 2-4

10/7/2016 9371 77 San Joaquin 19.80 21.10 1140 1301 8.00 9.80 0.00 2.75 0.00 0.00 0.75 0.00 120 0.00 2.93 0.00 0.00 4-6

10/7/2016 9606 76 San Joaquin 18.40 19.10 800 1020 7.90 8.30 0.00 3.50 0.00 0.00 1.75 0.00 120 0.00 3.73 0.00 0.00 0-2

10/7/2016 9606 77 San Joaquin 19.10 19.90 1025 1440 8.30 7.20 0.00 7.00 0.00 0.00 3.25 0.00 120 0.00 7.47 0.00 0.00 0-2

10/7/2016 Merced 519 Merced 19.40 19.70 1230 1400 8.23 8.41 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 2-4

10/7/2016 Merced 529 Merced 15.10 18.20 910 1205 8.57 8.67 0.00 0.19 0.00 0.00 0.09 0.00 96 0.00 0.25 0.00 0.00 0-2

10/8/2016 8929 262 Solano 17.40 20.90 900 1400 9.20 9.50 0.00 10.50 0.00 0.00 5.25 0.00 120 0.00 11.20 0.00 0.00 2-4

10/10/2016 8789 312 Stanislaus 17.90 17.90 1030 1430 8.40 8.80 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 0-2

10/10/2016 8789 709 Stanislaus 17.70 17.90 830 1000 9.90 8.90 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

10/10/2016 8834 700 Stanislaus 15.80 18.10 830 1430 8.35 9.20 0.00 0.00 0.00 0.00 0.00 0.00 120 0.00 0.00 0.00 0.00 2-4

10/10/2016 9123 91 Contra Costa 19.30 21.10 900 1500 7.51 7.09 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 0-2

10/10/2016 9371 267 Solano 17.90 19.40 955 1355 8.80 9.30 0.00 8.50 0.00 0.00 4.00 0.00 120 0.00 9.07 0.00 0.00 4-6

10/10/2016 9606 311 Stanislaus 17.80 19.10 830 1230 7.50 7.90 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

10/11/2016 8789 700 Stanislaus 17.60 17.90 830 1430 9.40 9.10 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 0-2

10/11/2016 8834 700 Stanislaus 17.10 18.20 830 1430 9.40 8.90 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 0-2

10/11/2016 9339 312 Stanislaus 18.10 18.10 830 1400 8.60 9.20 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

10/11/2016 9371 200 San Joaquin 20.00 18.80 1330 1430 9.60 9.80 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 8-10

10/11/2016 9371 205 San Joaquin 18.70 19.10 930 1200 5.90 14.40 0.00 1.75 0.00 0.00 1.00 0.00 120 0.00 1.87 0.00 0.00 6-8

10/11/2016 Merced 404 Merced 210.00 21.10 1300 1430 9.92 11.71 0.00 0.00 0.00 0.00 0.00 0.00 96 0.00 0.00 0.00 0.00 2-4

10/11/2016 Merced 405 Merced 18.40 21.00 1010 1300 8.05 9.92 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 6-8

10/11/2016 Merced 407 Merced 17.40 18.40 905 1010 7.81 8.05 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 4-6

10/12/2016 8834 311 Stanislaus 16.40 18.00 930 1030 7.63 7.09 0.00 0.00 0.44 0.00 0.50 0.00 32 0.00 0.00 1.75 0.00 2-4

- 80 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

10/12/2016 8834 313 Stanislaus 18.90 19.20 1130 1230 8.53 7.55 0.00 0.00 0.38 0.00 0.50 0.00 32 0.00 0.00 1.50 0.00 2-4

10/12/2016 9123 99 Contra Costa 19.90 21.70 830 1500 7.63 7.27 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 0-2

10/12/2016 9339 701 Stanislaus 17.60 18.10 930 1200 8.30 8.60 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

10/12/2016 9371 204 San Joaquin 18.70 22.90 835 1430 9.20 8.90 0.00 5.25 0.00 0.00 1.50 0.00 120 0.00 5.60 0.00 0.00 2-4

10/12/2016 9606 700 Stanislaus 17.60 18.30 900 1200 7.00 8.90 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

10/12/2016 9606 701 Stanislaus 18.70 19.60 1200 1420 9.60 11.40 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

10/12/2016 Merced 522 Merced 15.90 18.20 1100 1330 9.80 10.02 0.00 0.04 0.00 0.00 0.02 0.00 96 0.00 0.05 0.00 0.00 2-4

10/12/2016 Merced 523 Merced 14.80 15.90 900 1100 9.22 9.80 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 0-2

10/12/2016 Merced 524 Merced 15.10 14.80 825 900 8.97 9.22 0.00 0.01 0.00 0.00 0.01 0.00 96 0.00 0.01 0.00 0.00 0-2

10/13/2016 3420 12 San Joaquin 21.50 21.70 900 1400 7.30 8.20 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

10/13/2016 8834 300 San Joaquin 17.80 18.90 845 1100 7.30 9.30 0.00 5.00 0.00 0.00 2.00 0.00 120 0.00 5.33 0.00 0.00 0-2

10/13/2016 8834 302 San Joaquin 18.90 19.80 1100 1245 9.30 7.10 0.00 2.50 0.00 0.00 1.00 0.00 120 0.00 2.67 0.00 0.00 2-4

10/13/2016 8834 303 San Joaquin 19.80 20.20 1300 1430 7.10 7.80 0.00 2.50 0.00 0.00 1.00 0.00 120 0.00 2.67 0.00 0.00 2-4

10/13/2016 8929 215 Sacramento 18.10 17.90 1130 1400 6.90 7.20 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 6-8

10/13/2016 8929 216 Sacramento 17.40 17.50 730 1100 7.80 7.80 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

10/13/2016 9122 74 San Joaquin 17.50 18.30 830 1400 7.80 9.30 0.00 6.50 0.00 0.00 3.50 0.00 120 0.00 6.93 0.00 0.00 0-2

10/13/2016 9123 99 San Joaquin 18.00 20.20 830 1430 8.09 8.10 0.00 7.50 0.00 0.00 3.50 0.00 120 0.00 8.00 0.00 0.00 0-2

10/13/2016 9371 209 Sacramento 18.20 19.70 1320 1430 10.10 9.90 0.00 0.50 0.00 0.00 0.25 0.00 120 0.00 0.53 0.00 0.00 4-6

10/13/2016 9371 210 San Joaquin 18.00 18.00 841 1300 9.50 9.70 0.00 2.50 0.00 0.00 1.00 0.00 120 0.00 2.67 0.00 0.00 4-6

10/13/2016 Merced 519 Merced 16.30 17.20 1130 1415 8.74 8.50 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 0-2

10/13/2016 Merced 520 Merced 15.50 16.30 1035 1130 8.82 8.74 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 0-2

10/13/2016 Merced 521 Merced 14.90 15.50 830 1035 9.17 8.82 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 0-2

10/14/2016 Merced 517 Merced 15.80 16.00 1220 1330 8.55 8.56 0.00 0.04 0.00 0.00 0.02 0.00 96 0.00 0.05 0.00 0.00 2-4

10/14/2016 Merced 518 Merced 15.20 15.80 930 1220 8.30 8.55 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 0-2

10/14/2016 Merced 519 Merced 15.40 15.20 900 930 8.31 8.30 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 0-2

10/17/2016 3420 32 San Joaquin 18.30 18.50 930 0 9.20 8.30 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

10/17/2016 8834 304 San Joaquin 18.90 19.80 1015 1215 7.29 7.53 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

10/17/2016 8834 306 San Joaquin 19.80 21.10 1215 1500 7.53 7.81 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

10/17/2016 Merced 512 Merced 18.10 19.50 1100 1400 8.74 9.40 0.00 0.09 0.00 0.00 0.05 0.00 96 0.00 0.12 0.00 0.00 4-6

10/18/2016 3420 26 San Joaquin 18.50 18.80 930 1400 9.00 7.20 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

10/18/2016 3548 100 San Joaquin 18.00 19.50 900 1400 8.90 8.50 0.00 8.50 0.00 0.00 4.00 0.00 120 0.00 9.07 0.00 0.00 2-4

10/18/2016 8834 319 Stanislaus 16.70 16.80 900 930 7.44 7.50 0.00 0.50 0.00 0.00 0.25 0.00 120 0.00 0.53 0.00 0.00 2-4

10/18/2016 8834 320 Stanislaus 16.80 17.80 1000 1430 7.50 7.25 0.00 7.50 0.00 0.00 3.50 0.00 120 0.00 8.00 0.00 0.00 2-4

10/18/2016 8929 215 Sacramento 15.50 16.00 830 1300 6.80 7.00 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 0-2

10/18/2016 9123 99 San Joaquin 18.90 19.90 800 1500 7.93 8.15 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 2-4

10/18/2016 9371 87 Contra Costa 17.40 18.60 850 1336 7.40 5.60 0.00 7.50 0.00 0.00 4.00 0.00 120 0.00 8.00 0.00 0.00 4-6

10/18/2016 Merced 513 Merced 17.20 17.10 1200 1300 9.03 9.47 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 8-10

10/18/2016 Merced 514 Merced 16.20 17.20 1000 1200 8.22 9.03 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 6-8

10/18/2016 Merced 515 Merced 15.90 16.20 830 1000 8.45 8.22 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 2-4

10/19/2016 3420 84 Contra Costa 18.30 18.60 930 1200 8.50 8.10 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

10/19/2016 3548 86 Contra Costa 18.30 19.00 1000 1230 8.90 9.00 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

10/19/2016 8834 315 Stanislaus 16.40 17.10 930 1130 7.42 7.40 0.00 3.00 0.00 0.00 1.00 0.00 120 0.00 3.20 0.00 0.00 4-6

10/19/2016 8834 316 Stanislaus 17.10 17.50 1130 1300 7.40 7.10 0.00 1.25 0.00 0.00 0.50 0.00 120 0.00 1.33 0.00 0.00 4-6

10/19/2016 8929 215 Sacramento 16.00 17.20 800 1330 6.30 8.10 0.00 3.50 0.00 0.00 1.75 0.00 120 0.00 3.73 0.00 0.00 4-6

10/19/2016 9123 101 San Joaquin 17.30 20.30 830 1430 7.47 7.73 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 2-4

10/19/2016 Merced 510 Merced 18.90 18.90 1215 1410 8.91 8.90 0.00 0.01 0.00 0.00 0.01 0.00 96 0.00 0.01 0.00 0.00 4-6

10/19/2016 Merced 511 Merced 15.70 18.90 830 1215 8.97 8.91 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 2-4

10/20/2016 3420 40 San Joaquin 17.80 18.50 830 1400 8.70 7.50 0.00 4.50 0.00 0.00 2.25 0.00 120 0.00 4.80 0.00 0.00 0-2

10/20/2016 8929 290 Yolo 15.10 15.90 930 1030 10.00 9.20 0.00 0.75 0.00 0.00 0.35 0.00 120 0.00 0.80 0.00 0.00 2-4

10/20/2016 9123 101 San Joaquin 17.40 19.70 830 1430 8.26 7.49 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 0-2

- 81 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

10/20/2016 9339 65 San Joaquin 19.10 19.20 830 1430 9.90 9.90 0.00 9.50 0.00 0.00 4.75 0.00 120 0.00 10.13 0.00 0.00 0-2

10/20/2016 Merced 507 Merced 17.20 18.10 1230 1425 8.54 8.19 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 2-4

10/20/2016 Merced 508 Merced 15.60 17.20 1000 1230 8.78 8.54 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 0-2

10/20/2016 Merced 509 Merced 15.90 15.60 900 1000 8.81 8.69 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 0-2

10/21/2016 8834 312 Stanislaus 16.70 16.40 1030 1430 7.00 7.50 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 2-4

10/21/2016 9339 311 Stanislaus 24.70 25.60 1030 1330 7.22 7.09 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 0-2

10/21/2016 9606 312 Stanislaus 16.20 20.20 1000 1430 5.70 7.30 0.00 6.00 0.00 0.00 2.75 0.00 120 0.00 6.40 0.00 0.00 2-4

10/21/2016 Merced 505 Merced 16.70 17.60 1230 1330 8.45 8.15 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 0-2

10/21/2016 Merced 506 Merced 14.90 16.70 900 1230 8.79 8.79 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 0-2

10/21/2016 Merced 507 Merced 14.80 14.90 830 900 8.79 8.79 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 0-2

10/22/2016 9606 49 San Joaquin 16.50 18.20 830 1230 7.20 0.04 0.00 9.00 0.00 0.00 4.75 0.00 120 0.00 9.60 0.00 0.00 2-4

10/24/2016 3420 44 San Joaquin 18.10 18.30 900 1300 7.30 9.10 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 2-4

10/24/2016 8834 700 San Joaquin 16.60 16.00 900 1330 7.30 7.00 0.00 10.50 0.00 0.00 5.00 0.00 120 0.00 11.20 0.00 0.00 2-4

10/24/2016 9123 101 San Joaquin 19.10 20.30 830 1500 7.37 7.44 0.00 7.00 0.00 0.00 3.50 0.00 120 0.00 7.47 0.00 0.00 2-4

10/24/2016 9339 60 San Joaquin 19.10 19.20 1351 1430 10.40 9.80 0.00 0.90 0.00 0.00 0.50 0.00 120 0.00 0.96 0.00 0.00 0-2

10/24/2016 9339 65 San Joaquin 19.10 19.20 730 1351 10.40 9.80 0.00 9.10 0.00 0.00 4.50 0.00 120 0.00 9.71 0.00 0.00 0-2

10/24/2016 9371 700 Stanislaus 16.40 17.70 915 1400 7.00 5.90 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 4-6

10/24/2016 Merced 503 Merced 17.80 18.60 1130 1400 8.05 7.97 0.00 0.14 0.00 0.00 0.07 0.00 96 0.00 0.19 0.00 0.00 6-8

10/24/2016 Merced 504 Merced 17.40 17.80 940 1130 8.26 8.05 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 2-4

10/24/2016 Merced 505 Merced 17.50 17.40 900 930 8.32 8.26 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 2-4

10/25/2016 9123 101 San Joaquin 19.00 19.90 900 1230 7.55 7.51 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

10/25/2016 Merced 503 Merced 16.90 19.00 825 1420 7.45 17.01 0.00 0.19 0.00 0.00 0.09 0.00 96 0.00 0.25 0.00 0.00 4-6

10/26/2016 3420 100 San Joaquin 18.30 18.60 830 1400 7.20 8.70 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

10/26/2016 3738 106 Contra Costa 17.60 17.40 830 1430 9.20 10.70 0.00 7.00 0.00 0.00 3.50 0.00 120 0.00 7.47 0.00 0.00 0-2

10/26/2016 8929 262 Solano 16.20 16.40 1000 1400 6.80 6.50 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 0-2

10/26/2016 Merced 503 Merced 16.50 18.60 830 1400 7.68 7.11 0.00 0.28 0.00 0.00 0.14 0.00 96 0.00 0.37 0.00 0.00 0-2

10/27/2016 Merced 501 Merced 16.30 16.30 830 1100 7.26 7.52 0.00 0.16 0.00 0.00 0.08 0.00 96 0.00 0.21 0.00 0.00 0-2

10/31/2016 3420 44 San Joaquin 17.40 17.80 800 1430 7.40 8.20 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

10/31/2016 8834 240 Sacramento 15.50 16.30 900 1345 8.40 8.80 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

10/31/2016 8929 252 Sacramento 15.50 16.30 900 1200 8.00 8.30 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 2-4

10/31/2016 Merced 502 Merced 16.20 17.90 830 1400 8.53 8.08 0.00 0.38 0.00 0.00 0.19 0.00 96 0.00 0.51 0.00 0.00 0-2

0.00 434.35 0.81 0.00 209.42 0.00 0.00 464.00 3.25 0.00

- 82 -

Table B- 9. November 2016 Herbicide and Adjuvant Use

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

11/1/2016 3420 36 San Joaquin 17.60 18.10 830 1430 9.10 8.30 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 0-2

11/1/2016 8834 310 Stanislaus 16.40 17.40 915 1415 7.96 7.10 0.00 4.50 0.00 0.00 2.00 0.00 120 0.00 4.80 0.00 0.00 2-4

11/1/2016 8929 215 Sacramento 16.10 16.70 1200 1500 2.60 2.93 0.00 5.50 0.00 0.00 2.75 0.00 120 0.00 5.87 0.00 0.00 2-4

11/1/2016 9606 48 San Joaquin 17.10 17.80 830 1430 8.40 7.00 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 0-2

11/1/2016 Merced 500 Merced 17.00 25.60 1045 1330 7.61 8.49 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 4-6

11/1/2016 Merced 501 Merced 16.20 17.00 830 1030 7.94 7.61 0.00 0.09 0.00 0.00 0.05 0.00 96 0.00 0.12 0.00 0.00 0-2

11/2/2016 3420 6 San Joaquin 17.10 17.40 845 1230 9.30 9.00 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

11/2/2016 3420 7 San Joaquin 17.50 17.70 1300 1500 8.80 8.10 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

11/2/2016 3738 6 San Joaquin 17.50 17.60 1130 1300 8.30 8.10 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 0-2

11/2/2016 3738 10 San Joaquin 17.50 17.40 830 1130 9.20 8.90 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 0-2

11/2/2016 8834 700 Stanislaus 16.30 17.10 1030 1500 17.10 7.34 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 2-4

11/2/2016 Merced 412 Merced 18.10 18.80 1200 1400 6.15 6.51 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 0-2

11/2/2016 Merced 413 Merced 16.20 18.10 900 1200 7.62 6.15 0.00 0.08 0.00 0.00 0.04 0.00 96 0.00 0.11 0.00 0.00 0-2

11/3/2016 2938 8 San Joaquin 15.20 16.30 830 1500 2.50 7.10 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 0-2

11/3/2016 3738 106 Contra Costa 18.00 17.90 900 1430 8.00 12.60 0.00 5.25 0.00 0.00 2.50 0.00 120 0.00 5.60 0.00 0.00 0-2

11/3/2016 8834 318 Stanislaus 16.50 16.80 915 1130 7.98 7.55 0.00 3.00 0.00 0.00 1.25 0.00 120 0.00 3.20 0.00 0.00 2-4

11/3/2016 8834 319 Stanislaus 16.80 17.10 1130 1330 7.55 7.88 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

11/3/2016 8834 320 Stanislaus 17.10 17.30 1330 1430 7.88 8.88 0.00 0.50 0.00 0.00 0.25 0.00 120 0.00 0.53 0.00 0.00 2-4

11/3/2016 9123 101 Contra Costa 19.70 20.80 900 1500 8.01 7.84 0.00 7.50 0.00 0.00 3.50 0.00 120 0.00 8.00 0.00 0.00 0-2

11/3/2016 9606 46 San Joaquin 17.20 18.10 900 1430 9.60 7.20 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

11/3/2016 Merced 519 Merced 17.20 18.30 1200 1400 9.66 9.58 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 2-4

11/3/2016 Merced 528 Merced 14.20 16.20 900 1230 8.11 8.88 0.00 0.14 0.00 0.00 0.07 0.00 96 0.00 0.19 0.00 0.00 0-2

11/7/2016 3420 7 San Joaquin 17.20 17.50 900 1430 9.10 8.50 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 0-2

11/7/2016 8834 311 Stanislaus 16.70 17.40 915 1430 7.42 8.11 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 2-4

11/7/2016 9123 101 Contra Costa 19.40 21.50 830 1500 8.09 7.93 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 2-4

11/7/2016 9606 48 San Joaquin 17.00 17.70 930 1430 7.00 8.30 0.00 7.50 0.00 0.00 3.50 0.00 120 0.00 8.00 0.00 0.00 0-2

11/7/2016 Merced 522 Merced 16.80 17.00 1040 1330 10.22 11.36 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 0-2

11/7/2016 Merced 523 Merced 15.10 16.80 900 1040 9.92 10.22 0.00 0.04 0.00 0.00 0.02 0.00 96 0.00 0.05 0.00 0.00 0-2

11/7/2016 Merced 524 Merced 14.70 15.10 830 900 9.52 9.92 0.00 0.01 0.00 0.00 0.01 0.00 96 0.00 0.01 0.00 0.00 0-2

11/8/2016 3420 19 Sacramento 17.20 17.30 930 1500 10.60 9.10 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

11/8/2016 8834 300 San Joaquin 17.20 18.00 1130 1430 7.05 8.15 0.00 5.00 0.00 0.00 2.25 0.00 120 0.00 5.33 0.00 0.00 2-4

11/8/2016 8834 301 San Joaquin 16.50 17.20 845 1130 7.08 7.05 0.00 4.00 0.00 0.00 1.75 0.00 120 0.00 4.27 0.00 0.00 2-4

11/8/2016 8929 241 Sacramento 15.50 16.40 900 1300 7.40 8.10 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

11/8/2016 9123 100 San Joaquin 19.20 21.30 800 1400 7.46 7.95 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 0-2

11/8/2016 9371 80 San Joaquin 19.70 19.90 829 1435 8.20 8.50 0.00 4.75 0.00 0.00 1.50 0.00 120 0.00 5.07 0.00 0.00 4-6

11/8/2016 9606 46 San Joaquin 16.90 17.30 930 1430 7.50 8.30 0.00 7.50 0.00 0.00 4.00 0.00 120 0.00 8.00 0.00 0.00 0-2

11/8/2016 Merced 519 Merced 17.10 17.10 1200 1400 9.46 9.49 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 0-2

11/8/2016 Merced 520 Merced 16.60 17.10 1020 1200 9.12 9.46 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 0-2

11/8/2016 Merced 521 Merced 15.00 16.60 840 1020 9.83 9.12 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 0-2

11/9/2016 3420 19 Contra Costa 17.60 17.80 830 1100 17.80 10.60 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 0-2

11/9/2016 3420 200 San Joaquin 17.20 17.40 1130 1500 8.60 9.40 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 0-2

11/9/2016 8834 303 San Joaquin 16.80 17.40 830 1030 8.27 8.35 0.00 2.25 0.00 0.00 1.00 0.00 120 0.00 2.40 0.00 0.00 2-4

11/9/2016 8834 304 San Joaquin 17.50 20.00 1045 1445 8.66 8.01 0.00 5.75 0.00 0.00 2.00 0.00 120 0.00 6.13 0.00 0.00 2-4

11/9/2016 9123 100 San Joaquin 18.90 21.40 830 1500 7.62 7.73 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 0-2

11/9/2016 9371 26 San Joaquin 17.30 17.60 900 1430 7.50 9.70 0.00 3.25 0.00 0.00 1.25 0.00 120 0.00 3.47 0.00 0.00 0-2

11/9/2016 Merced 514 Merced 17.10 17.10 1200 200 10.05 11.72 0.00 1.56 0.00 0.00 0.84 0.00 96 0.00 2.08 0.00 0.00 0-2

11/9/2016 Merced 515 Merced 15.50 17.10 1000 1200 9.84 10.05 0.00 0.05 0.00 0.00 0.02 0.00 96 0.00 0.07 0.00 0.00 0-2

11/9/2016 Merced 517 Merced 15.70 15.50 830 1000 9.63 9.84 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 0-2

- 83 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

11/10/2016 3420 21 Contra Costa 17.40 17.40 800 1500 9.30 13.40 0.00 10.50 0.00 0.00 5.25 0.00 120 0.00 11.20 0.00 0.00 0-2

11/10/2016 8834 317 Stanislaus 19.80 20.10 1330 1430 7.22 7.85 0.00 2.25 0.00 0.00 1.25 0.00 120 0.00 2.40 0.00 0.00 2-4

11/10/2016 8834 318 Stanislaus 18.30 19.80 1100 1330 7.35 7.22 0.00 3.75 0.00 0.00 1.75 0.00 120 0.00 4.00 0.00 0.00 2-4

11/10/2016 8834 319 Stanislaus 17.30 18.30 830 1100 8.90 7.35 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 0-2

11/10/2016 8929 8 San Joaquin 17.10 17.60 800 1430 7.10 9.60 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 0-2

11/10/2016 9123 100 San Joaquin 19.10 20.70 900 1500 7.57 7.51 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 0-2

11/10/2016 9371 18 San Joaquin 16.40 17.70 930 1500 7.90 7.60 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 2-4

11/10/2016 Merced 526 Merced 18.10 17.50 1130 1420 9.31 10.27 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 0-2

11/10/2016 Merced 528 Merced 16.00 18.10 900 1130 10.24 9.31 0.00 0.03 0.00 0.00 0.02 0.00 96 0.00 0.04 0.00 0.00 0-2

11/11/2016 9123 110 Contra Costa 19.30 20.00 830 1300 7.26 7.33 0.00 6.50 0.00 0.00 3.25 0.00 120 0.00 6.93 0.00 0.00 0-2

11/11/2016 9123 112 Contra Costa 20.10 20.30 1330 1430 7.41 7.31 0.00 1.00 0.00 0.00 0.50 0.00 120 0.00 1.07 0.00 0.00 0-2

11/11/2016 9606 49 San Joaquin 17.20 17.40 1000 1500 0.45 1.20 0.00 11.50 0.00 0.00 6.00 0.00 120 0.00 12.27 0.00 0.00 2-4

11/12/2016 9606 48 San Joaquin 17.50 17.30 1100 1430 7.80 7.10 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 4-6

11/12/2016 9606 49 San Joaquin 17.40 17.20 900 1100 7.00 0.62 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

11/14/2016 3420 9 San Joaquin 16.70 17.20 900 1430 8.70 8.20 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

11/14/2016 3548 19 Sacramento 15.20 17.10 930 1400 7.20 7.80 0.00 10.00 0.00 0.00 5.00 0.00 120 0.00 10.67 0.00 0.00 0-2

11/14/2016 8835 216 Sacramento 16.10 16.20 830 1300 7.70 6.90 0.00 3.50 0.00 0.00 2.00 0.00 120 0.00 3.73 0.00 0.00 0-2

11/14/2016 9123 112 Contra Costa 18.90 22.10 830 1500 7.66 7.50 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 0-2

11/14/2016 9371 78 San Joaquin 17.20 18.50 915 1348 8.20 9.50 0.00 8.00 0.00 0.00 3.00 0.00 120 0.00 8.53 0.00 0.00 4-6

11/14/2016 9606 75 San Joaquin 17.50 17.60 900 1145 8.50 7.80 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

11/14/2016 9606 76 San Joaquin 17.90 17.40 1150 1500 7.60 7.40 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 0-2

11/14/2016 Merced 503 Merced 15.50 18.30 830 215 7.49 8.90 0.00 0.25 0.00 0.00 0.13 0.00 96 0.00 0.33 0.00 0.00 0-2

11/15/2016 0006 19 Sacramento 15.40 15.80 930 1230 7.10 7.60 0.00 7.00 0.00 0.00 3.50 0.00 120 0.00 7.47 0.00 0.00 4-6

11/15/2016 8789 109 Contra Costa 17.50 17.90 830 1230 8.50 8.10 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 4-6

11/15/2016 8834 318 Stanislaus 18.10 18.30 1100 1430 7.80 7.50 0.00 4.50 0.00 0.00 2.25 0.00 120 0.00 4.80 0.00 0.00 2-4

11/15/2016 8834 319 Stanislaus 17.40 17.70 845 1100 8.10 8.30 0.00 4.50 0.00 0.00 2.25 0.00 120 0.00 4.80 0.00 0.00 2-4

11/15/2016 8835 214 Sacramento 17.00 16.10 900 1300 2.00 8.20 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 4-6

11/15/2016 9123 53 San Joaquin 18.50 20.10 830 1430 8.10 7.84 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 0-2

11/15/2016 9371 73 San Joaquin 19.30 19.40 1300 1430 10.60 9.70 0.00 1.00 0.00 0.00 0.25 0.00 120 0.00 1.07 0.00 0.00 4-6

11/15/2016 9371 82 San Joaquin 16.50 18.70 900 1312 8.10 9.80 0.00 8.50 0.00 0.00 2.50 0.00 120 0.00 9.07 0.00 0.00 2-4

11/15/2016 9606 46 San Joaquin 17.30 17.90 1200 1530 7.80 9.20 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 0-2

11/15/2016 Merced 501 Merced 17.00 18.70 1130 140 8.24 9.22 0.00 0.02 0.00 0.00 0.01 0.00 96 0.00 0.03 0.00 0.00 2-4

11/15/2016 Merced 502 Merced 16.30 17.00 1030 1130 7.42 8.24 0.00 0.06 0.00 0.00 0.03 0.00 96 0.00 0.08 0.00 0.00 0-2

11/15/2016 Merced 503 Merced 15.60 16.30 830 1030 7.18 7.42 0.00 0.11 0.00 0.00 0.05 0.00 96 0.00 0.15 0.00 0.00 0-2

11/16/2016 0006 57 San Joaquin 16.80 17.10 900 1300 7.60 7.90 0.00 1.50 0.00 0.00 0.75 0.00 120 0.00 1.60 0.00 0.00 4-6

11/16/2016 3420 32 San Joaquin 17.00 17.40 810 1100 9.50 8.30 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 6-8

11/16/2016 8834 291 San Joaquin 14.90 15.00 830 1230 8.60 10.10 0.00 3.50 0.00 0.00 1.75 0.00 120 0.00 3.73 0.00 0.00 2-4

11/16/2016 8929 215 Sacramento 14.50 16.50 800 1200 6.50 6.10 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 0-2

11/16/2016 9123 57 San Joaquin 16.80 16.80 900 1300 7.60 7.60 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 4-6

11/16/2016 9371 73 San Joaquin 16.10 17.90 830 1530 8.50 8.90 0.00 2.50 0.00 0.00 1.50 0.00 120 0.00 2.67 0.00 0.00 6-8

11/16/2016 9606 291 San Joaquin 17.10 17.60 900 1440 9.10 7.00 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 2-4

11/17/2016 3420 8 San Joaquin 17.30 17.50 1200 1500 8.30 7.10 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

11/17/2016 3420 14 San Joaquin 16.80 17.20 730 1100 9.50 9.10 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

11/17/2016 3548 103 Contra Costa 15.90 16.20 1100 1400 9.50 9.00 0.00 5.50 0.00 0.00 3.00 0.00 120 0.00 5.87 0.00 0.00 4-6

11/17/2016 8929 277 Solano 14.00 14.10 1300 1500 7.20 8.30 0.00 2.00 0.00 0.00 1.00 0.00 120 0.00 2.13 0.00 0.00 6-8

11/17/2016 8929 280 Solano 13.10 13.30 1000 1300 6.70 8.20 0.00 4.00 0.00 0.00 2.00 0.00 120 0.00 4.27 0.00 0.00 2-4

11/17/2016 9123 103 San Joaquin 15.90 16.30 1100 1400 9.50 8.71 0.00 3.50 0.00 0.00 1.75 0.00 120 0.00 3.73 0.00 0.00 4-6

11/17/2016 9371 72 San Joaquin 15.70 18.30 830 1500 8.50 9.50 0.00 7.25 0.00 0.00 1.75 0.00 120 0.00 7.73 0.00 0.00 2-4

11/17/2016 9606 74 San Joaquin 15.60 16.80 900 1400 9.80 8.20 0.00 9.50 0.00 0.00 4.50 0.00 120 0.00 10.13 0.00 0.00 0-2

11/18/2016 8929 279 Solano 13.50 14.80 900 1400 6.70 7.50 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 0-2

- 84 -

Date

Vessel


Before

Temp

(°C)

After

Temp

(°C)

Time

Arrived

Time

Departed

DO

Before

(mg/L)

DO

After

(mg/L)

2,4-D

(gal)

Glyphosate

(gal)

Imazamox

(gal)

Penoxsulam

(gal)

Agridex

(gal)

Competitor

(gal)

Chem

Rate

(oz/Ac)

2,4-D

Acres

Glyphosate

Acres

Imazamox

Acres

Penoxsulam

Acres

Wind

Speed

(mph)

11/18/2016 9371 77 San Joaquin 13.00 15.30 900 1430 10.50 9.40 0.00 8.50 0.00 0.00 4.00 0.00 120 0.00 9.07 0.00 0.00 2-4

11/21/2016 0006 56 San Joaquin 15.40 16.10 900 1300 7.20 7.60 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 2-4

11/21/2016 8834 291 San Joaquin 13.80 14.00 830 1430 11.60 9.10 0.00 6.00 0.00 0.00 3.00 0.00 120 0.00 6.40 0.00 0.00 0-2

11/21/2016 8835 311 Stanislaus 16.80 18.30 1030 1300 8.70 7.90 0.00 2.25 0.00 0.00 1.00 0.00 120 0.00 2.40 0.00 0.00 4-6

11/21/2016 9123 56 San Joaquin 15.40 16.10 900 1500 7.30 8.85 0.00 7.00 0.00 0.00 3.50 0.00 120 0.00 7.47 0.00 0.00 2-4

11/21/2016 9371 77 San Joaquin 14.30 16.10 915 1442 10.30 9.00 0.00 6.50 0.00 0.00 2.50 0.00 120 0.00 6.93 0.00 0.00 2-4

11/22/2016 0006 54 San Joaquin 16.70 16.90 1300 1500 9.10 9.00 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 2-4

11/22/2016 0006 56 San Joaquin 15.10 16.20 900 1200 8.15 8.70 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

11/22/2016 3420 20 Sacramento 16.50 16.80 830 1430 8.70 9.60 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 0-2

11/22/2016 8834 280 Solano 13.60 13.90 830 1430 9.10 8.70 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 0-2

11/22/2016 8929 281 Solano 13.10 13.10 1200 1500 10.00 9.20 0.00 5.00 0.00 0.00 2.50 0.00 120 0.00 5.33 0.00 0.00 2-4

11/22/2016 9123 54 San Joaquin 16.10 16.90 1300 1500 7.96 8.32 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 2-4

11/22/2016 9123 56 San Joaquin 15.10 16.20 900 1230 8.15 8.75 0.00 4.50 0.00 0.00 2.25 0.00 120 0.00 4.80 0.00 0.00 0-2

11/22/2016 9371 81 San Joaquin 13.40 14.80 925 1448 9.90 9.70 0.00 8.00 0.00 0.00 4.25 0.00 120 0.00 8.53 0.00 0.00 4-6

11/22/2016 9606 280 Solano 13.80 13.40 1300 1400 9.00 9.20 0.00 2.50 0.00 0.00 1.00 0.00 120 0.00 2.67 0.00 0.00 2-4

11/23/2016 9123 54 San Joaquin 14.70 15.10 900 1130 9.68 8.70 0.00 3.00 0.00 0.00 1.50 0.00 120 0.00 3.20 0.00 0.00 0-2

11/23/2016 9371 80 San Joaquin 13.90 15.30 931 1228 11.70 11.00 0.00 4.50 0.00 0.00 1.75 0.00 120 0.00 4.80 0.00 0.00 2-4

11/23/2016 9606 280 Solano 12.50 12.20 930 1130 7.20 7.00 0.00 2.50 0.00 0.00 1.00 0.00 120 0.00 2.67 0.00 0.00 4-6

11/25/2016 9371 20 Sacramento 13.60 14.20 901 1535 5.70 8.20 0.00 8.50 0.00 0.00 7.00 0.00 120 0.00 9.07 0.00 0.00 4-6

11/28/2016 9123 52 San Joaquin 14.10 14.90 930 1400 8.23 7.76 0.00 4.50 0.00 0.00 2.25 0.00 120 0.00 4.80 0.00 0.00 2-4

11/28/2016 9371 20 Sacramento 13.20 14.00 908 1445 5.70 6.40 0.00 6.50 0.00 0.00 4.00 0.00 120 0.00 6.93 0.00 0.00 6-8

11/29/2016 3420 8 San Joaquin 16.10 16.40 830 1400 9.50 8.40 0.00 3.50 0.00 0.00 1.25 0.00 120 0.00 3.73 0.00 0.00 0-2

11/29/2016 9371 20 Sacramento 12.40 14.10 845 1408 6.10 5.80 0.00 5.50 0.00 0.00 3.50 0.00 120 0.00 5.87 0.00 0.00 4-6

11/29/2016 9606 311 Stanislaus 15.10 15.90 930 1430 10.60 7.90 0.00 8.00 0.00 0.00 4.00 0.00 120 0.00 8.53 0.00 0.00 2-4

11/30/2016 0006 108 Contra Costa 16.20 16.50 1000 1400 9.30 8.10 0.00 3.00 0.00 0.00 2.00 0.00 120 0.00 3.20 0.00 0.00 2-4

11/30/2016 8834 319 Stanislaus 10.40 11.80 900 1030 9.60 9.45 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 0-2

11/30/2016 8834 320 Stanislaus 11.80 13.40 1030 1430 9.45 8.70 0.00 7.50 0.00 0.00 3.75 0.00 120 0.00 8.00 0.00 0.00 2-4

11/30/2016 8929 284 Solano 10.90 11.30 1000 1400 10.40 9.70 0.00 6.00 0.00 0.00 4.00 0.00 120 0.00 6.40 0.00 0.00 0-2

11/30/2016 9371 80 San Joaquin 11.40 12.90 905 1445 10.80 11.00 0.00 6.00 0.00 0.00 4.25 0.00 120 0.00 6.40 0.00 0.00 2-4

11/30/2016 9606 46 San Joaquin 15.50 16.30 915 1400 7.70 8.00 0.00 9.50 0.00 0.00 4.50 0.00 120 0.00 10.13 0.00 0.00 0-2

11/30/2016 964121 93 Contra Costa 16.10 16.50 1030 1300 7.76 7.32 0.00 2.50 0.00 0.00 1.25 0.00 120 0.00 2.67 0.00 0.00 2-4

0.00 568.56 0.00 0.00 280.98 0.00 0.00 607.21 0.00 0.00

85

APPENDIX C

2016 Treatment Count Per Site

86

1 0 35 3 74 28 101B 9 135 0 222 0 255 0 290B 0 411 5 521 5 903 0

2 0 36 7 75 14 102 2 136 0 223 0 256A 0 291 10 412 10 522 5 904 0

3 0 37 8 76 23 103A 4 137 0 224 0 256B 0 300 16 413 5 523 5 905 0

4 0 38 1 77 11 103B 1 138 0 225 0 257A 0 301 9 414 0 524 5 906 0

5 0 39 7 78 7 104A 1 139 0 226 0 257B 0 302 6 414A 0 525 0 907 0

6 11 40 4 79 4 104B 3 140 0 230 0 258A 0 303 10 415 0 526 4 908 0

7 5 41 0 80 12 105 2 141 0 231 0 258B 0 304 11 416 0 527 0 909 0

8 19 42 2 81 7 106 3 171 1 232 0 259 0 305 1 417 0 528 9 910A 0

9 5 43 1 82 10 107 5 173 1 233 0 260 0 306 4 418 0 529 4 910B 0

10 4 44 4 83A 3 108 4 174 0 234 0 261 1 307 1 419 0 530 0 911 0

11 0 45 2 83B 7 109 13 175 0 235 0 262 5 308 1 420 0 532 0 912 0

12 6 46 11 84A 13 110 7 176 0 236 0 263 1 309 1 421 0 533 0 913 0

13 3 47 17 84B 4 111 2 200 4 237 0 264 0 310 2 422 0 534 0 914 0

14 8 48 15 85A 4 112 6 201 0 238 0 265 0 311 12 423 0 535 0 915 0

15 4 49 16 85B 7 113 2 202 1 239 0 266 0 312 11 424 0 536 0 916 0

16 2 50 6 86A 2 114 1 203 6 240A 0 267 1 313 5 425 0 537 0 917 0

17A 0 51 2 86B 1 115 0 204 4 240B 1 268 0 314 0 426 0 600 0 918 0

17B 1 52 8 87A 4 116 2 205 4 241 2 269 0 315 2 427 0 700 14 919 0

18A 2 53 8 87B 3 117 6 206 1 242 0 270 0 316 5 500 3 701 3 920 0

18B 3 54 4 88 4 118 0 207 0 243 0 271 0 317 3 501 8 702 1 921 0

19A 8 55 1 89A 0 119A 0 208 0 244 0 272 0 318 7 502 5 703 0 922 0

19B 2 56 12 89B 1 119B 0 209A 1 245 0 273 0 319 7 503 8 704 0 923 0

20 8 57 5 90A 1 120A 0 209B 0 246A 0 274 0 320 5 504 5 705 0 924 0

21A 0 58 3 90B 1 120B 0 210A 0 246B 0 275 0 321 2 505 8 706 4 925 0

21B 1 59 5 91A 2 121A 0 210B 2 247A 0 276 0 322 2 506 5 707 4 926 0

22 1 60 3 91B 0 121B 0 211A 0 247B 0 277 1 323 0 507 6 708 9 927 0

23A 1 61 5 92A 2 122 0 211B 0 248A 0 278 0 324 0 508 8 709 11 928 0

23B 0 62 4 92B 6 123 0 212A 3 248B 0 279 1 325 0 509 4 710 9 929 0

24A 3 63 0 93 5 124 0 212B 0 249A 0 280 4 400 4 510 4 711 3

24B 0 64 0 94 1 125 0 213A 1 249B 0 281 1 401 4 511 3 712 1

25 1 65 10 95 0 126 0 213B 1 250A 0 282 0 402 3 512 6 713 3

26 10 66 2 96 1 127 0 214 8 250B 0 283 0 403 3 513 3 714 3

28 11 67 8 97 2 128 0 215 35 251A 0 284 1 404 5 514 6 715 0

29 2 68 8 98A 1 129 0 216 14 251B 0 285 0 405 5 515 8 716 0

30 5 69 2 98B 1 130 0 217 10 252A 0 286 0 406 0 516 0 717 0

31 9 70 1 99A 3 131 0 218 0 252B 5 287 0 407 5 517 5 718 0

32 14 71 1 99B 6 132 0 219 4 253A 0 288 0 408 9 518 8 900 0 150 798

33 4 72 12 100 11 133 0 220 0 253B 0 289 0 409 5 519 14 901 0

34 0 73 12 101A 4 134 0 221 0 254 0 290A 1 410 12 520 5 902 0 74 422

→→→ →→→

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Less Treatments →→→

Count

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2016 FAV Treatment Count (Glyphosate, 2,4-D, Imazamox, and Penoxsulam)

Site

↓

Count

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Count

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Count

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Count

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Site

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1220

Riverine

More Treatments

Count

↓

Site

↓

224

As of

11/30/2016

Treatment

Count

Tidal

Sites Treated

SUMMARY

Count

↓

87

APPENDIX D

NPDES Monitoring and Laboratory Data

88

Monitoring Results – Site 6, French Camp Slough

Imazamox Residue

Sample Location Lab Sample ID DBW ID Date Sample

Taken Date Sample

Received Date Sample

Extracted Date Sample

Analyzed Imazamox

(ppb)

1A 2016-1064 H6-091916-3 9/19/2016 9/19/2016 9/30/2016 10/3/2016 ND

1C 2016-1063 H6-091916-2 9/19/2016 9/19/2016 9/30/2016 10/3/2016 ND

2B 2016-1066 H6-091916-5 9/19/2016 9/19/2016 9/30/2016 10/3/2016 ND

3A 2016-1200 H6-092816-3 9/28/2016 9/28/2016 9/30/2016 10/3/2016 ND

3C 2016-1199 H6-092816-2 9/28/2016 9/28/2016 9/30/2016 10/3/2016 ND

3B 2016-1202 H6-092816-5 9/28/2016 9/28/2016 9/30/2016 10/3/2016 ND

Agridex Residue


Taken Date Sample



Analyzed Agridex (ppb)

1A 2016-1064 H6-091916-3 9/19/2016 9/19/2016 9/22/2016 9/22/2016 ND

1C 2016-1063 H6-091916-2 9/19/2016 9/19/2016 9/22/2016 9/22/2016 ND

2B 2016-1066 H6-091916-5 9/19/2016 9/19/2016 9/22/2016 9/22/2016 ND

3A 2016-1200 H6-092816-3 9/28/2016 9/28/2016 9/30/2016 10/3/2016 ND

3C 2016-1199 H6-092816-2 9/28/2016 9/28/2016 9/30/2016 10/3/2016 ND

3B 2016-1202 H6-092816-5 9/28/2016 9/28/2016 9/30/2016 10/3/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity

(NTU) Tide Cycle

1A H6-091916-3 9/19/2016 647898 4198180 9:25 23.70 - - 6.27 - - Flood

1C H6-091916-2 9/19/2016 647829 4198254 9:04 23.20 - - 6.41 - - Flood

2B H6-091916-5 9/19/2016 648811 4198093 10:36 23.90 - - 6.31 - - Flood

3A H6-092816-3 9/28/2016 647916 4198176 10:20 22.39 0.379 0.19 - 7.41 12.1 Ebb

3C H6-092816-2 9/28/2016 647892 4198230 10:16 22.41 0.398 0.20 - 7.58 16.8 Ebb

3B H6-092816-5 9/28/2016 648818 4198091 10:36 22.36 0.244 0.09 - 7.79 24.2 Low slack

89

Monitoring Results – Site 9, Burns Cutoff

Penoxsulam Residue


Taken Date Sample



Analyzed Penoxsulam

(ppb)

1A 2016-0405 H9-080216-3 8/2/2016 8/2/2016 8/3/2016 8/3/2016 ND

1C 2016-0404 H9-080216-2 8/2/2016 8/2/2016 8/3/2016 8/3/2016 ND

2B 2016-0406 H9-080216-5 8/2/2016 8/2/2016 8/3/2016 8/3/2016 ND

3A 2016-445 H9-080916-3 8/9/2016 8/9/2016 8/10/2016 8/10/2016 ND

3C 2016-454 H9-080916-2 8/9/2016 8/9/2016 8/10/2016 8/10/2016 ND

3B 2016-457 H9-080916-5 8/9/2016 8/9/2016 8/10/2016 8/10/2016 ND

Agridex Residue


Taken Date Sample




1A 2016-0405 H9-080216-3 8/2/2016 8/2/2016 8/10/2016 8/10/2016 ND

1C 2016-0404 H9-080216-2 8/2/2016 8/2/2016 8/10/2016 8/10/2016 ND

2B 2016-0406 H9-080216-5 8/2/2016 8/2/2016 8/10/2016 8/10/2016 ND

3A 2016-445 H9-080916-3 8/9/2016 8/9/2016 8/11/2016 8/11/2016 ND

3C 2016-454 H9-080916-2 8/9/2016 8/9/2016 8/11/2016 8/11/2016 ND

3B 2016-457 H9-080916-5 8/9/2016 8/9/2016 8/11/2016 8/11/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity

(NTU) Tide Cycle

1A H9-080216-3 8/2/2016 645019 4200434 9:10 24.98 0.890 0.46 5.32 8.11 39.8 Ebb

1C H9-080216-2 8/2/2016 644349 4200565 9:02 25.03 0.907 0.47 5.41 7.93 33.2 Ebb

2B H9-080216-5 8/2/2016 644246 4200534 9:40 25.40 0.875 0.46 5.13 7.93 40.0 Ebb

3A H9-080916-3 8/9/2016 644611 4200416 9:28 23.68 0.876 0.46 5.00 7.71 47.3 Flood

3C H9-080916-2 8/9/2016 645194 4200472 9:18 25.63 0.719 0.34 5.85 7.61 15.3 Flood

3B H9-080916-5 8/9/2016 644264 4200542 9:35 23.99 0.868 0.45 5.00 7.63 45.2 Flood

90

Monitoring Results – Site 17b, San Joaquin River

2,4-D Residue


Taken Date Sample



Analyzed 2,4-D (ppb)

1A 2016-0618 H17-081716-3 8/17/2016 8/17/2016 8/18/2016 8/19/2016 ND

1C 2016-0617 H17-081716-2 8/17/2016 8/17/2016 8/18/2016 8/19/2016 ND

2B 2016-0620 H17-081716-5 8/17/2016 8/17/2016 8/18/2016 8/19/2016 ND

3A 2016-0663 H17-082216-3 8/22/2016 8/22/2016 8/23/2016 8/24/2016 ND

3C 2016-0662 H17-082216-2 8/22/2016 8/22/2016 8/23/2016 8/24/2016 ND

3B 2016-0664 H17-082216-5 8/22/2016 8/22/2016 8/23/2016 8/24/2016 ND

Agridex Residue


Taken Date Sample




1A 2016-0618 H17-081716-3 8/17/2016 8/17/2016 8/25/2016 8/30/2016 ND

1C 2016-0617 H17-081716-2 8/17/2016 8/17/2016 8/25/2016 8/30/2016 ND

2B 2016-0620 H17-081716-5 8/17/2016 8/17/2016 8/25/2016 8/30/2016 ND

3A 2016-0663 H17-082216-3 8/22/2016 8/22/2016 9/7/2016 9/7/2016 ND

3C 2016-0662 H17-082216-2 8/22/2016 8/22/2016 9/7/2016 9/7/2016 ND

3B 2016-0664 H17-082216-5 8/22/2016 8/22/2016 9/7/2016 9/7/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity

(NTU) Tide Cycle

1A H17-081716-3 8/17/2016 625480 4214768 8:03 22.78 0.276 0.13 8.12 7.96 5.2 Ebb

1C H17-081716-2 8/17/2016 625418 4214769 7:59 22.82 0.288 0.14 8.34 7.85 3.8 Ebb

2B H17-081716-5 8/17/2016 625891 4214565 9:16 22.89 0.216 0.10 8.12 8.22 18.8 Ebb

3A H17-082216-3 8/22/2016 625481 4214769 9:07 21.96 0.291 0.14 8.61 7.99 7.9 High slack

3C H17-082216-2 8/22/2016 625419 4214760 9:01 21.99 0.288 0.14 8.48 7.88 6.0 High slack

3B H17-082216-5 8/22/2016 625881 4214580 9:19 21.91 0.251 0.14 8.21 8.10 4.8 High slack

91

Monitoring Results – Site 19b, San Joaquin River

2,4-D Residue


Taken Date Sample




1A 2016-0624 H19-081716-3 8/17/2016 8/17/2016 8/18/2016 8/19/2016 ND

1C 2016-0623 H19-081716-2 8/17/2016 8/17/2016 8/18/2016 8/19/2016 ND

2B 2016-0626 H19-081716-5 8/17/2016 8/17/2016 8/18/2016 8/19/2016 ND

3A 2016-0667 H19-082216-3 8/22/2016 8/22/2016 8/23/2016 8/24/2016 ND

3C 2016-0666 H19-082216-2 8/22/2016 8/22/2016 8/23/2016 8/24/2016 ND

3B 2016-0668 H19-082216-5 8/22/2016 8/22/2016 8/23/2016 8/24/2016 0.160

Agridex Residue


Taken Date Sample




1A 2016-0624 H19-081716-3 8/17/2016 8/17/2016 8/25/2016 8/30/2016 ND

1C 2016-0623 H19-081716-2 8/17/2016 8/17/2016 8/25/2016 8/30/2016 ND

2B 2016-0626 H19-081716-5 8/17/2016 8/17/2016 8/25/2016 8/30/2016 ND

3A 2016-0667 H19-082216-3 8/22/2016 8/22/2016 9/7/2016 9/7/2016 ND

3C 2016-0666 H19-082216-2 8/22/2016 8/22/2016 9/7/2016 9/7/2016 ND

3B 2016-0668 H19-082216-5 8/22/2016 8/22/2016 9/7/2016 9/7/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity

(NTU) Tide Cycle

1A H19-081716-3 8/17/2016 624178 4217313 8:42 22.84 0.287 0.14 8.44 7.95 3.0 Ebb

1C H19-081716-2 8/17/2016 624250 4217290 8:48 22.87 0.276 0.13 8.38 8.11 7.5 Ebb

2B H19-081716-5 8/17/2016 623659 4217467 10:35 22.98 0.284 0.13 8.04 8.40 6.8 Ebb

3A H19-082216-3 8/22/2016 624160 4217315 9:49 21.90 0.295 0.14 8.20 8.20 3.9 High slack

3C H19-082216-2 8/22/2016 624247 4217284 9:45 21.81 0.300 0.15 8.19 8.15 12.6 High slack

3B H19-082216-5 8/22/2016 623681 4217428 9:9 21.57 0.303 0.15 7.66 8.19 6.3 High slack

92

Monitoring Results – Site 26, Fourteen Mile Slough

Penoxsulam Residue


Taken Date Sample



Analyzed Penoxsulam

(ppb)

1A 2016-0409 H26-080216-3 8/2/2016 8/2/2016 8/3/2016 8/3/2016 ND

1C 2016-0408 H26-080216-2 8/2/2016 8/2/2016 8/3/2016 8/3/2016 ND

2B 2016-0410 H26-080216-5 8/2/2016 8/2/2016 8/3/2016 8/3/2016 ND

3A 2016-461 H26-080916-3 8/9/2016 8/9/2016 8/10/2016 8/10/2016 ND

3C 2016-460 H26-080916-2 8/9/2016 8/9/2016 8/10/2016 8/10/2016 ND

3B 2016-463 H26-080916-5 8/9/2016 8/9/2016 8/10/2016 8/10/2016 ND

Agridex Residue


Taken Date Sample




1A 2016-0409 H26-080216-3 8/2/2016 8/2/2016 8/10/2016 8/10/2016 ND

1C 2016-0408 H26-080216-2 8/2/2016 8/2/2016 8/10/2016 8/10/2016 ND

2B 2016-0410 H26-080216-5 8/2/2016 8/2/2016 8/10/2016 8/10/2016 ND

3A 2016-461 H26-080916-3 8/9/2016 8/9/2016 8/11/2016 8/11/2016 ND

3C 2016-460 H26-080916-2 8/9/2016 8/9/2016 8/11/2016 8/11/2016 ND

3B 2016-463 H26-080916-5 8/9/2016 8/9/2016 8/11/2016 8/11/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity

(NTU) Tide Cycle

1A H26-080216-3 8/2/2016 643625 4206449 11:41 26.90 0.385 0.19 7.21 8.24 72.5 Low Slack

1C H26-080216-2 8/2/2016 643654 4206413 11:34 26.89 0.387 0.19 6.33 8.27 15.9 Low Slack

2B H26-080216-5 8/2/2016 643019 4207233 2:31 27.92 0.357 0.18 8.16 8.38 10.4 Low Slack

3A H26-080916-3 8/9/2016 643586 4206445 11:40 25.38 0.372 0.18 5.81 7.91 37.0 Flood

3C H26-080916-2 8/9/2016 643654 4206445 11:35 25.73 0.365 0.18 5.57 7.92 23.9 Flood

3B H26-080916-5 8/9/2016 642999 4207236 12:01 26.19 0.334 0.16 6.34 8.19 24.3 Flood

93


Imazamox Residue


Taken Date Sample



Analyzed Imazamox

(ppb)

1A 2016-1069 H28-091916-3 9/19/2016 9/19/2016 9/30/2016 10/3/2016 ND

1C 2016-1068 H28-091916-2 9/19/2016 9/19/2016 9/30/2016 10/3/2016 ND

2B 2016-1071 H28-091916-5 9/19/2016 9/19/2016 9/30/2016 10/3/2016 ND

3A 2016-1205 H28-092816-3 9/28/2016 9/28/2016 9/30/2016 10/3/2016 ND

3C 2016-1204 H28-092816-2 9/28/2016 9/28/2016 9/30/2016 10/3/2016 ND

3B 2016-1207 H28-092816-5 9/28/2016 9/28/2016 9/30/2016 10/3/2016 ND

Agridex Residue


Taken Date Sample




1A 2016-1069 H28-091916-3 9/19/2016 9/19/2016 9/22/2016 9/22/2016 ND

1C 2016-1068 H28-091916-2 9/19/2016 9/19/2016 9/22/2016 9/22/2016 ND

2B 2016-1071 H28-091916-5 9/19/2016 9/19/2016 9/22/2016 9/22/2016 ND

3A 2016-1205 H28-092816-3 9/28/2016 9/28/2016 9/30/2016 10/3/2016 ND

3C 2016-1204 H28-092816-2 9/28/2016 9/28/2016 9/30/2016 10/3/2016 ND

3B 2016-1207 H28-092816-5 9/28/2016 9/28/2016 9/30/2016 10/3/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity

(NTU) Tide Cycle

1A H28-091916-3 9/19/2016 639566 4206584 11:32 23.50 - - 7.16 - - Ebb

1C H28-091916-2 9/19/2016 639548 4206553 11:25 24.00 - - 6.59 - - Ebb

2B H28-091916-5 9/19/2016 640269 4207525 12:35 24.30 - - 6.38 - - Ebb

3A H28-092816-3 9/28/2016 639566 4206625 11:31 23.43 0.310 0.15 7.12 7.57 3.2 Low slack

3C H28-092816-2 9/28/2016 639552 4206573 11:27 22.93 0.312 0.15 6.58 7.75 2.4 Low slack

3B H28-092816-5 9/28/2016 640248 4207543 11:40 23.19 0.305 0.15 6.39 7.66 7.7 Low slack

94


Penoxsulam Residue


Taken Date Sample



Analyzed Penoxsulam

(ppb)

1A 2016-0412 H28-080216-3 8/2/2016 8/2/2016 8/3/2016 8/3/2016 ND

1C 2016-0411 H28-080216-2 8/2/2016 8/2/2016 8/3/2016 8/3/2016 ND

2B 2016-0413 H28-080216-5 8/2/2016 8/2/2016 8/3/2016 8/3/2016 ND

3A 2016-466 H28-080916-3 8/9/2016 8/9/2016 8/10/2016 8/10/2016 ND

3C 2016-465 H28-080916-2 8/9/2016 8/9/2016 8/10/2016 8/10/2016 ND

3B 2016-468 H28-080916-5 8/9/2016 8/9/2016 8/10/2016 8/10/2016 ND

Agridex Residue


Taken Date Sample




1A 2016-0412 H28-080216-3 8/2/2016 8/2/2016 8/10/2016 8/10/2016 ND

1C 2016-0411 H28-080216-2 8/2/2016 8/2/2016 8/10/2016 8/10/2016 ND

2B 2016-0413 H28-080216-5 8/2/2016 8/2/2016 8/10/2016 8/10/2016 ND

3A 2016-466 H28-080916-3 8/9/2016 8/9/2016 8/11/2016 8/11/2016 ND

3C 2016-465 H28-080916-2 8/9/2016 8/9/2016 8/11/2016 8/11/2016 ND

3B 2016-468 H28-080916-5 8/9/2016 8/9/2016 8/11/2016 8/11/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity

(NTU) Tide Cycle

1A H28-080216-3 8/2/2016 641714 4208243 10:59 25.84 0.296 0.14 7.18 8.51 11.6 Ebb

1C H28-080216-2 8/2/2016 641745 4208288 10:50 26.09 0.289 0.14 8.32 8.67 17.7 Ebb

2B H28-080216-5 8/2/2016 640946 4207653 1:00 27.10 0.358 0.18 5.96 8.51 133 Ebb

3A H28-080916-3 8/9/2016 641748 4208290 10:41 25.65 0.294 0.14 7.40 8.23 14.4 Flood

3C H28-080916-2 8/9/2016 641786 4208338 10:35 25.46 0.296 0.14 6.54 8.46 12.5 Flood

3B H28-080916-5 8/9/2016 640946 4207628 10:58 25.24 0.293 0.14 6.36 8.05 12.4 Flood

95

Monitoring Results – Site 33, Disappointment Slough

Glyphosate Residue


Taken Date Sample



Analyzed Glyphosate

(ppb)

1A 2016-3661 H33-050916-3 5/9/2016 5/9/2016 5/24/2016 5/24/2016 ND

1C 2016-3660 H33-050916-2 5/9/2016 5/9/2016 5/24/2016 5/24/2016 ND

2B 2016-3663 H33-050916-5 5/9/2016 5/9/2016 5/24/2016 5/24/2016 ND

3A 2016-2990 H33-051616-3 5/16/2016 5/16/2016 5/24/2016 5/24/2016 ND

3C 2016-2989 H33-051616-2 5/16/2016 5/16/2016 5/24/2016 5/24/2016 ND

3B 2016-2992 H33-051616-5 5/16/2016 5/16/2016 5/24/2016 5/24/2016 ND

Agridex Residue


Taken Date Sample




1A 2016-3661 H33-050916-3 5/9/2016 5/9/2016 5/11/2016 5/11/2016 ND

1C 2016-3660 H33-050916-2 5/9/2016 5/9/2016 5/11/2016 5/11/2016 ND

2B 2016-3663 H33-050916-5 5/9/2016 5/9/2016 5/11/2016 5/11/2016 ND

3A 2016-2990 H33-051616-3 5/16/2016 5/16/2016 5/19/2016 5/19/2016 ND

3C 2016-2989 H33-051616-2 5/16/2016 5/16/2016 5/19/2016 5/19/2016 ND

3B 2016-2992 H33-051616-5 5/16/2016 5/16/2016 5/19/2016 5/19/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity

(NTU) Tide Cycle

1A H33-050916-3 5/9/2016 634587 4212446 10:01 18.60 0.341 0.17 8.22 8.04 3.7 Ebb

1C H33-050916-2 5/9/2016 635006 4212740 9:21 18.49 0.343 0.17 7.77 8.16 3.0 Ebb

2B H33-050916-5 5/9/2016 633764 4211788 11:42 18.87 0.343 0.17 8.11 7.83 5.8 Ebb

3A H33-051616-3 5/16/2016 634588 4212443 10:42 20.75 0.318 0.16 8.64 7.55 1.6 Low slack

3C H33-051616-2 5/16/2016 635036 4212736 10:33 20.71 0.318 0.16 8.48 7.27 0.6 Low slack

3B H33-051616-5 5/16/2016 633770 4211782 10:54 20.55 0.316 0.15 9.00 7.90 3.0 Low slack

96

Monitoring Results – Site 42, Connection Slough

2,4-D Residue


Taken Date Sample




1A 2016-4625 H42-062216-3 6/22/2016 6/22/2016 6/23/2016 6/27/2016 ND

1C 2016-4624 H42-062216-2 6/22/2016 6/22/2016 6/23/2016 6/27/2016 ND

2B 2016-4627 H42-062216-5 6/22/2016 6/22/2016 6/23/2016 6/27/2016 ND

3A 2016-4706 H42-062716-3 6/27/2016 6/27/2016 6/29/2016 7/5/2016 ND

3C 2016-4705 H42-062716-2 6/27/2016 6/27/2016 6/29/2016 7/5/2016 ND

3B 2016-4708 H42-062716-5 6/27/2016 6/27/2016 6/29/2016 7/5/2016 ND

Agridex Residue


Taken Date Sample




1A 2016-4625 H42-062216-3 6/22/2016 6/22/2016 6/23/2016 6/23/2016 ND

1C 2016-4624 H42-062216-2 6/22/2016 6/22/2016 6/23/2016 6/23/2016 ND

2B 2016-4627 H42-062216-5 6/22/2016 6/22/2016 6/23/2016 6/23/2016 ND

3A 2016-4706 H42-062716-3 6/27/2016 6/27/2016 6/30/2016 6/30/2016 ND

3C 2016-4705 H42-062716-2 6/27/2016 6/27/2016 6/30/2016 6/30/2016 ND

3B 2016-4708 H42-062716-5 6/27/2016 6/27/2016 6/30/2016 6/30/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity

(NTU) Tide Cycle

1A H42-062216-3 6/22/2016 631710 4213906 9:34 22.68 0.1446 0.06 8.36 8.35 5.5 Ebb

1C H42-062216-2 6/22/2016 631669 4214107 9:29 22.80 0.1454 0.06 8.69 8.47 15.1 Ebb

2B H42-062216-5 6/22/2016 631517 4213371 10:49 22.81 0.1459 0.06 8.52 8.15 4.9 Ebb

3A H42-062716-3 6/27/2016 631711 4213910 10:45 23.47 0.1517 0.07 8.15 8.15 6.1 Flood

3C H42-062716-2 6/27/2016 631652 4214105 10:37 23.40 0.1516 0.07 8.34 8.37 3.7 Flood

3B H42-062716-5 6/27/2016 631510 4213360 10:59 23.36 0.1527 0.07 8.03 8.06 6.6 High slack

97

Monitoring Results – Site 68, Middle River

Glyphosate Residue


Taken Date Sample



Analyzed Glyphosate

(ppb)

1A 2016-3666 H68-050916-3 5/9/2016 5/9/2016 5/24/2016 5/24/2016 ND

1C 2016-3665 H68-050916-2 5/9/2016 5/9/2016 5/24/2016 5/24/2016 ND

2B 2016-3668 H68-050916-5 5/9/2016 5/9/2016 5/24/2016 5/24/2016 ND

3A 2016-3757 H68-051616-3 5/16/2016 5/16/2016 5/24/2016 5/24/2016 ND

3C 2016-3756 H68-051616-2 5/16/2016 5/16/2016 5/24/2016 5/24/2016 ND

3B 2016-3759 H68-051616-5 5/16/2016 5/16/2016 5/24/2016 5/24/2016 ND

Agridex Residue


Taken Date Sample




1A 2016-3666 H68-050916-3 5/9/2016 5/9/2016 5/11/2016 5/11/2016 ND

1C 2016-3665 H68-050916-2 5/9/2016 5/9/2016 5/11/2016 5/11/2016 ND

2B 2016-3668 H68-050916-5 5/9/2016 5/9/2016 5/11/2016 5/11/2016 ND

3A 2016-3757 H68-051616-3 5/16/2016 5/16/2016 5/19/2016 5/19/2016 ND

3C 2016-3756 H68-051616-2 5/16/2016 5/16/2016 5/19/2016 5/19/2016 ND

3B 2016-3759 H68-051616-5 5/16/2016 5/16/2016 5/19/2016 5/19/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity

(NTU) Tide Cycle

1A H68-050916-3 5/9/2016 630677 4207352 9:12 18.35 0.310 0.15 9.63 8.45 8.5 High Slack

1C H68-050916-2 5/9/2016 630678 4207280 9:04 16.35 0.326 0.16 10.47 8.65 6.7 High Slack

2B H68-050916-5 5/9/2016 630370 4207691 10:43 18.69 0.311 0.15 9.97 8.35 7.2 High Slack

3A H68-051616-3 5/16/2016 630675 4207339 11:40 21.62 0.315 0.15 12.68 9.18 13.9 Flood

3C H68-051616-2 5/16/2016 630667 4207288 11:35 20.35 0.316 0.15 9.95 8.71 5.0 Flood

3B H68-051616-5 5/16/2016 630356 4207728 11:53 20.43 0.313 0.15 9.96 9.01 8.9 Flood

98

Monitoring Results – Site 99b, Old River

2,4-D Residue


Taken Date Sample




1A 2016-4615 H99-062116-3 6/21/2016 6/21/2016 6/23/2016 6/27/2016 ND

1C 2016-4614 H99-062116-2 6/21/2016 6/21/2016 6/23/2016 6/27/2016 ND

2B 2016-4617 H99-062116-5 6/21/2016 6/21/2016 6/23/2016 6/27/2016 ND

3A 2016-4700 H99-062716-3 6/27/2016 6/27/2016 6/29/2016 7/5/2016 ND

3C 2016-4699 H99-062716-2 6/27/2016 6/27/2016 6/29/2016 7/5/2016 ND

3B 2016-4702 H99-062716-5 6/27/2016 6/27/2016 6/29/2016 7/5/2016 ND

Agridex Residue


Taken Date Sample




1A 2016-4615 H99-062116-3 6/21/2016 6/21/2016 6/23/2016 6/23/2016 ND

1C 2016-4614 H99-062116-2 6/21/2016 6/21/2016 6/23/2016 6/23/2016 ND

2B 2016-4617 H99-062116-5 6/21/2016 6/21/2016 6/23/2016 6/23/2016 ND

3A 2016-4700 H99-062716-3 6/27/2016 6/27/2016 6/30/2016 6/30/2016 ND

3C 2016-4699 H99-062716-2 6/27/2016 6/27/2016 6/30/2016 6/30/2016 ND

3B 2016-4702 H99-062716-5 6/27/2016 6/27/2016 6/30/2016 6/30/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity

(NTU) Tide Cycle

1A H99-062116-3 6/21/2016 624770 4205557 9:20 22.87 0.250 0.12 8.08 8.00 8.6 Ebb

1C H99-062116-2 6/21/2016 624752 4205495 9:35 22.85 0.251 0.12 7.97 8.10 20.5 Ebb

2B H99-062116-5 6/21/2016 625005 4205946 11:00 23.21 0.251 0.12 8.91 8.40 50.9 Ebb

3A H99-062716-3 6/27/2016 624774 4205582 9:16 23.83 0.271 0.13 7.63 8.18 6.1 Flood

3C H99-062716-2 6/27/2016 624731 4205435 9:10 23.83 0.272 0.13 7.91 8.22 4.3 Flood

3B H99-062716-5 6/27/2016 625020 4205950 9:31 23.79 0.264 0.13 7.81 8.11 7.6 Flood

99

Monitoring Results – Site 103a, Old River

2,4-D Residue


Taken Date Sample




1A 2016-0550 H103-081616-3 8/16/2016 8/16/2016 8/17/2016 8/18/2016 ND

1C 2016-0549 H103-081616-2 8/16/2016 8/16/2016 8/17/2016 8/18/2016 ND

2B 2016-0552 H103-081616-5 8/16/2016 8/16/2016 8/17/2016 8/18/2016 ND

3A 2016-0671 H103-082216-3 8/22/2016 8/22/2016 8/23/2016 8/24/2016 ND

3C 2016-0670 H103-082216-2 8/22/2016 8/22/2016 8/23/2016 8/24/2016 ND

3B 2016-0672 H103-082216-5 8/22/2016 8/22/2016 8/23/2016 8/24/2016 0.109

Agridex Residue


Taken Date Sample




1A 2016-0550 H103-081616-3 8/16/2016 8/16/2016 9/6/2016 9/6/2016 ND

1C 2016-0549 H103-081616-2 8/16/2016 8/16/2016 9/6/2016 9/6/2016 ND

2B 2016-0552 H103-081616-5 8/16/2016 8/16/2016 9/6/2016 9/6/2016 ND

3A 2016-0671 H103-082216-3 8/22/2016 8/22/2016 9/7/2016 9/7/2016 ND

3C 2016-0670 H103-082216-2 8/22/2016 8/22/2016 9/7/2016 9/7/2016 ND

3B 2016-0672 H103-082216-5 8/22/2016 8/22/2016 9/7/2016 9/7/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity (NTU)

Tide Cycle

1A H103-081616-3 8/16/2016 624794 4210354 9:46 22.85 0.338 0.17 8.71 8.36 1.7 Ebb

1C H103-081616-2 8/16/2016 624675 4210259 9:40 22.64 0.364 0.18 8.92 8.24 0.3 Ebb

2B H103-081616-5 8/16/2016 624633 4211333 11:40 23.39 0.332 0.16 8.64 8.33 3.1 Ebb

3A H103-082216-3 8/22/2016 624788 4210346 11:04 21.03 0.513 0.26 8.80 8.48 3.2 Ebb

3C H103-082216-2 8/22/2016 624714 4210279 10:59 21.00 0.489 0.25 8.89 8.43 2.2 Ebb

3B H103-082216-5 8/22/2016 624632 4211335 11:25 21.25 0.478 0.24 7.92 8.43 2.6 Ebb

100

Monitoring Results – Site 104b, Old River

2,4-D Residue


Taken Date Sample




1A 2016-0556 H104-081616-3 8/16/2016 8/16/2016 8/17/2016 8/18/2016 ND

1C 2016-0555 H104-081616-2 8/16/2016 8/16/2016 8/17/2016 8/18/2016 ND

2B 2016-0558 H104-081616-5 8/16/2016 8/16/2016 8/17/2016 8/18/2016 1.78

3A 2016-0675 H104-082216-3 8/22/2016 8/22/2016 8/23/2016 8/24/2016 0.105

3C 2016-0674 H104-082216-2 8/22/2016 8/22/2016 8/23/2016 8/24/2016 0.111

3B 2016-0676 H104-082216-5 8/22/2016 8/22/2016 8/23/2016 8/24/2016 ND

Agridex Residue


Taken Date Sample




1A 2016-0556 H104-081616-3 8/16/2016 8/16/2016 9/6/2016 9/6/2016 ND

1C 2016-0555 H104-081616-2 8/16/2016 8/16/2016 9/6/2016 9/6/2016 ND

2B 2016-0558 H104-081616-5 8/16/2016 8/16/2016 9/6/2016 9/6/2016 ND

3A 2016-0675 H104-082216-3 8/22/2016 8/22/2016 9/7/2016 9/7/2016 ND

3C 2016-0674 H104-082216-2 8/22/2016 8/22/2016 9/7/2016 9/7/2016 ND

3B 2016-0676 H104-082216-5 8/22/2016 8/22/2016 9/7/2016 9/7/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity (NTU)

Tide Cycle

1A H104-081616-3 8/16/2016 624697 4214009 8:51 22.58 0.258 0.12 8.93 8.04 25.9 Ebb

1C H104-081616-2 8/16/2016 624650 4213955 8:45 22.60 0.292 0.14 8.83 7.76 3.7 Ebb

2B H104-081616-5 8/16/2016 624767 4211445 10:16 22.81 0.274 0.13 8.86 8.39 22.0 Ebb

3A H104-082216-3 8/22/2016 624697 4214016 10:29 21.64 0.267 0.13 8.12 8.32 4.1 Ebb

3C H104-082216-2 8/22/2016 624651 4213957 10:25 21.71 0.251 0.12 9.12 8.34 3.7 Ebb

3B H104-082216-5 8/22/2016 624766 4214457 10:39 22.09 0.255 0.12 8.48 8.28 9.8 Ebb

101

Monitoring Results – Site 311, San Joaquin River

Imazamox Residue


Taken Date Sample



Analyzed Imazamox

(ppb)

1A 2016-1389 H311-101216-3 10/12/2016 10/12/2016 10/31/2016 10/31/2016 ND

1C 2016-1388 H311-101216-2 10/12/2016 10/12/2016 10/31/2016 10/31/2016 ND

2B 2016-1391 H311-101216-5 10/12/2016 10/12/2016 10/31/2016 10/31/2016 ND

3A 2016-1526 H311-101916-3 10/19/2016 10/19/2016 10/31/2016 10/31/2016 ND

3C 2016-1525 H311-101916-2 10/19/2016 10/19/2016 10/31/2016 10/31/2016 ND

3B 2016-1528 H311-101916-5 10/19/2016 10/19/2016 10/31/2016 10/31/2016 ND

Agridex Residue


Taken Date Sample




1A 2016-1389 H311-101216-3 10/12/2016 10/12/2016 10/13/2016 10/13/2016 ND

1C 2016-1388 H311-101216-2 10/12/2016 10/12/2016 10/13/2016 10/13/2016 ND

2B 2016-1391 H311-101216-5 10/12/2016 10/12/2016 10/13/2016 10/13/2016 ND

3A 2016-1526 H311-101916-3 10/19/2016 10/19/2016 10/25/2016 10/25/2016 ND

3C 2016-1525 H311-101916-2 10/19/2016 10/19/2016 10/25/2016 10/25/2016 ND

3B 2016-1528 H311-101916-5 10/19/2016 10/19/2016 10/25/2016 10/25/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity

(NTU) Tide Cycle

1A H311-101216-3 10/12/2016 659502 4166845 9:32 17.42 0.422 0.21 7.62 7.78 2.2 None

1C H311-101216-2 10/12/2016 659521 4166789 9:27 17.20 0.404 0.20 7.34 7.73 5.5 None

2B H311-101216-5 10/12/2016 657826 4165927 11:45 18.43 0.503 0.26 7.87 8.43 7.9 None

3A H311-101916-3 10/19/2016 659501 4166840 10:02 16.14 0.410 0.20 6.64 7.30 10.9 None

3C H311-101916-2 10/19/2016 659517 4166787 9:52 15.98 0.404 0.20 7.18 7.16 12.5 None

3B H311-101916-5 10/19/2016 657832 4165927 10:21 16.33 0.418 0.21 7.12 7.82 5.9 None

102

Monitoring Results – Site 313, San Joaquin River

Imazamox Residue


Taken Date Sample



Analyzed Imazamox

(ppb)

1A 2016-1395 H313-101216-3 10/12/2016 10/12/2016 10/31/2016 10/31/2016 ND

1C 2016-1394 H313-101216-2 10/12/2016 10/12/2016 10/31/2016 10/31/2016 ND

2B 2016-1397 H313-101216-5 10/12/2016 10/12/2016 10/31/2016 10/31/2016 ND

3A 2016-1532 H313-101916-3 10/19/2016 10/19/2016 10/31/2016 10/31/2016 ND

3C 2016-1531 H313-101916-2 10/19/2016 10/19/2016 10/31/2016 10/31/2016 ND

3B 2016-1534 H313-101916-5 10/19/2016 10/19/2016 10/31/2016 10/31/2016 ND

Agridex Residue


Taken Date Sample




1A 2016-1395 H313-101216-3 10/12/2016 10/12/2016 10/13/2016 10/13/2016 ND

1C 2016-1394 H313-101216-2 10/12/2016 10/12/2016 10/13/2016 10/13/2016 ND

2B 2016-1397 H313-101216-5 10/12/2016 10/12/2016 10/13/2016 10/13/2016 ND

3A 2016-1532 H313-101916-3 10/19/2016 10/19/2016 10/25/2016 10/25/2016 ND

3C 2016-1531 H313-101916-2 10/19/2016 10/19/2016 10/25/2016 10/25/2016 ND

3B 2016-1534 H313-101916-5 10/19/2016 10/19/2016 10/25/2016 10/25/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity

(NTU) Tide Cycle

1A H313-101216-3 10/12/2016 661580 4162853 11:10 18.80 1.55 0.82 7.61 7.99 14.1 None

1C H313-101216-2 10/12/2016 661599 4162778 10:58 18.69 1.55 0.82 7.50 7.88 15.0 None

2B H313-101216-5 10/12/2016 660806 4163689 12:46 19.95 1.57 0.83 8.85 8.00 6.2 None

3A H313-101916-3 10/19/2016 661572 4162861 11:27 16.88 0.730 0.38 6.77 7.68 18.2 None

3C H313-101916-2 10/19/2016 661597 4162782 11:16 16.79 0.728 0.38 6.70 7.69 19.0 None

3B H313-101916-5 10/19/2016 660816 4163683 11:47 17.52 0.725 0.37 6.87 7.79 19.4 None

103

Monitoring Results – Site 519, Merced River

Imazamox Residue


Taken Date Sample



Analyzed Imazamox

(ppb)

1A 2016-3796 H519-081616-3 5/18/2016 5/18/2016 6/15/2016 6/15/2016 ND

1C 2016-3795 H519-081616-2 5/18/2016 5/18/2016 6/15/2016 6/15/2016 ND

2B 2016-3798 H519-081616-5 5/18/2016 5/18/2016 6/15/2016 6/15/2016 ND

3A 2016-3937 H519-052316-3 5/23/2016 5/23/2016 6/15/2016 6/15/2016 ND

3C 2016-3936 H519-052316-2 5/23/2016 5/23/2016 6/15/2016 6/15/2016 ND

3B 2016-3939 H519-052316-5 5/23/2016 5/23/2016 6/15/2016 6/15/2016 ND

Agridex Residue


Taken Date Sample




1A 2016-3796 H519-081616-3 5/18/2016 5/18/2016 5/19/2016 5/19/2016 ND

1C 2016-3795 H519-081616-2 5/18/2016 5/18/2016 5/19/2016 5/19/2016 ND

2B 2016-3798 H519-081616-5 5/18/2016 5/18/2016 5/19/2016 5/19/2016 ND

3A 2016-3937 H519-052316-3 5/23/2016 5/23/2016 6/6/2016 6/6/2016 ND

3C 2016-3936 H519-052316-2 5/23/2016 5/23/2016 6/6/2016 6/6/2016 ND

3B 2016-3939 H519-052316-5 5/23/2016 5/23/2016 6/6/2016 6/6/2016 ND

Water Quality Data

Sample Location

Sample ID Date UTM

Easting UTM

Northing Time

Water Temp (ºC)

Conduct- ivity

(mS/cm)

Salinity (ppt)

DO (mg/L)

pH Turbidity (NTU)

Tide Cycle

1A H519-081616-3 5/18/2016 717406 4149740 11:16 21.61 0.0764 0.03 4.63 6.90 0.6 None

1C H519-081616-2 5/18/2016 717424 4249914 11:02 20.62 0.0756 0.02 4.11 7.11 0.7 None

2B H519-081616-5 5/18/2016 717372 4149705 12:18 23.17 0.0783 0.03 4.51 6.91 0.6 None

3A H519-052316-3 5/23/2016 717406 4149775 10:36 19.29 0.711 0.02 6.81 7.92 18.9 None

3C H519-052316-2 5/23/2016 717596 4149769 11:16 17.81 0.716 0.02 8.82 7.70 1.7 None

3B H519-052316-5 5/23/2016 717316 4149698 11:02 19.65 0.736 0.02 6.07 7.79 0.5 None

104

APPENDIX E

DBW 2016 Progress Report for Delta Regional Areawide Aquatic Weed Project

105

2016

Progress Report USDA-ARS Delta Region Areawide Aquatic Weed

Project

Cooperator Name: Division of Boating and Waterways Principal Investigator Name: Edward Hard, Environmental Program Manager ARS Agreement Number: 58-5325-4-027 Reporting period covered: 01/01/2016 – 06/30/2016

Under this agreement there are three primary objectives to be addressed by the Division of Boating and Waterways (DBW) includes, 1) assessing aquatic weed growth under field conditions, 2) implement and assess improved weed control methodologies, and 3) monitoring environmental characteristics.

I. Assess Aquatic Weed Growth under Field Conditions Objective

One of the objectives of the Specific Cooperative Agreement (SCA) with the United Stated Department of Agriculture (USDA) - Agricultural Research Service (ARS) is to assess weed growth under field conditions, such as low water as is the current condition throughout the Delta. The five-year drought is driving low water and flow conditions. DBW continues to assess the presence of invasive aquatic weeds with a combination of visual survey, acoustic sonar mapping (for submersed aquatic vegetation), and NASA Landsat images depicting potential concentrations of invasive floating aquatic vegetation in the Sacramento-San Joaquin Delta. However, there are operational constraints from NASA that include the presence of cloud cover on imagery that prevent the timely delivery of the composite map to DBW. Additional enhancements are needed to ensure some real-time advantages of this type of technique through the next funding cycle. NASA and DBW are coordinating to address this issue.

II. Implement and Assess Improved Weed Control Methodologies Objective

In 2015, DBW’s Aquatic Invasive Species (AIS) Branch has treated a total of 4,445 surface water acres of floating aquatic vegetation (water hyacinth and spongeplant) – see graph. That equates to1038 treatment applications in 213 sites in the Sacramento-San Joaquin Delta and its tributaries (Delta). This year has been the highest number of surface water acres treated since the DBW started its chemical treatment in 1992.

106

Chemical Control-Floating Aquatic Vegetation DBW has been successful keeping water hyacinth under control in the Central and Southern Delta and with some success in regions of the Northern Delta such as Snug Harbor and the Meadows. However, some locations in the Northern Delta, such as Lost Slough, Hog Slough, and Sycamore Slough have increased growth of water hyacinth because of the following constraints: 1) the North Delta cannot be treated until June 1 due to regulatory requirements for fishery migrations, and 2) 2,4-D the faster acting herbicide could not be used in the northern Delta. The stronger herbicide 2, 4-D cannot be used in 1/3 of our entire control area because of Federal Fishery Agencies requirements of California State Parks pursuant to the federal Endangered Species Act. Water hyacinth reaches its peak biomass in late-summer/fall and plants have begun to break apart from larger mats along channel margins and are now moving with the tides and winds. Chemical Control-Submersed Aquatic Vegetation For the submersed aquatic vegetation (Egeria densa and Curlyleaf Pondweed), the AIS Branch has treated a total of 1529 surface water acres in 25 sites with extensive water quality monitoring occurring throughout the season. Treatments in Discovery Bay were extended for an additional 16 weeks with 8 bi-weekly herbicidal applications. The herbicide treatments were effective in reducing the density of Egeria densa and Curly Leaf Pondweed.

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107

Mechanical Control-Floating Aquatic Vegetation As of December 3, 2015, the mechanical harvesting contractor has removed approximately 4,100 cubic yards of water hyacinth, specifically around the Stockton Deep Water Channel and Stockton Waterfront areas. However, challenges remain where DBW may limit mechanical harvesting in the Delta due in part to 1) levee access, 2) levee integrity, 3) endangered species presence, and 4) spoiling locations in proportional proximity to the place of extraction of weeds from the waterway. DBW has reached out to the local Reclamations Districts to seek guidance, assistance and cooperation on mechanical control for water hyacinth. The Division is also actively seeking cooperation and collaboration with landowners to provide spoil locations for mechanically removed floating aquatic vegetation.

III. Monitoring Environmental Characteristics Objective

DBW is working with the Central Valley Regional Water Quality Control Board (CVRWQCB) to prepare and begin implementing a study plan to develop nutrient objectives for the Delta in Chapter 6 of the Delta Stewardship Council’s Delta Plan. In 2014, the CVRWQCB staff wrote a Strategic Work Plan that includes tasks, deliverables and a timeline to develop the study plan and determine if nutrient objectives are needed. DBW is working with this Stakeholder and Technical Advisory Group (STAG) to accomplish in part a better understanding of the nutrient loading inputs into the Delta that may be impacting the weed growth of the weed populations. DBW is involved in the Macrophyte Workgroup, and one staff is a member of the STAG.

Communication

Weekly notification flyers (see examples below) are distributed to marina operators, and other interested individual/entities for areas in the Delta where chemical treatments are being implemented to control floating and submersed aquatic vegetation.

110

APPENDIX F

FAV species currently controlled by DBW

For more information visit our website at http://dbw.parks.ca.gov/

http://dbw.parks.ca.gov/

111

Water hyacinth (Eichhornia crassipes)

South American spongeplant (Limnobium laevigatum)

Photo credit: Angela Llaban

Photo credit: Lars Anderson

112

Uruguay water primrose (Ludwigia hexapetala)

Photo credit: Joseph DiTomaso

floating aquatic vegetation control program water … - 2016 annual... · floating aquatic...

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