Fishtrap Creek Water Quality Monitoring Summary

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Attachment B to City of Lynden’s 2015 Annual Report

Fishtrap Creek Water Quality Violation -- S4.F.3 Report

Background The City of Lynden was notified by Whatcom County of water quality standard violations for fecal coliform in Fishtrap Creek, Waters of the State. Following the S4.F protocol outlined in the NPDES Phase II stormwater permit, the City drafted this memorandum to document the effort to identify potential sources of fecal coliform reaching the mainstem of Fishtrap Creek and report the combined sampling results of 3 entities. In partnership with the Whatcom County Conservation District (CD) and Whatcom County Natural Resources Division (County), the Fishtrap Creek focus area was initially defined as the reach from Depot Road to Bender Road (Figure 1a) bounded by Badger Road to the north and Drayton Street to the south. This area was subsequently extended upstream to Aaron Road (Figure 1b). Water quality sampling in the area of question is conducted primarily by the County sponsored by a Pollution Identification and Control (PIC) grant and the CD through the PIC program and an interlocal agreement contract with the City of Lynden. The County also samples additional sites throughout the Fishtrap basin (Figure 2). Through adaptive management the City and partners added additional sample sites. The City took action to identify outfalls, mobilize crews for sampling within the stormwater system to isolate potential illicit discharges, and to help with the County and CD efforts. Additional samples were taken in the reach of concern at outfalls (designated as sites ending in “of”) through partnerships and the City contractors. Thirteen sites were sampled originally by the 3 entities and 21 sites were added. The number of sampling sites evolved over time with the discovery of new outfalls and locations of high fecal counts. The new sites were established to better characterize water quality from outfalls, stormdrains, and the reach from Bender to Aaron Drive. Figure 3 depicts a general schematic of the stormdrain system sites that were sampled and where they discharge to the mainstream. The sites were too numerous and close together to identify individually at a scale appropriate for inclusion in this report. The CD supports an interactive water quality sampling site map that can be used to see all the sample site locations in the Fishtrap focus area. That map is available online at: http://wacds.maps.arcgis.com/apps/webappviewer/index.html?id=e77d3beb93664d12aa7cc402ad16a48e. The map covers sample sites throughout the county and can be zoomed in to any location. Appendix A provides detailed description of the location of all the sampling sites included in this report.

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Figure 1a: City of Lynden and Conservation District Water Quality site locations in the Fishtrap Creek Focus area – Depot Road to Bender Road

Fishtrap Creek Water Quality Monitoring Summary

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Figure1b: City of Lynden and Conservation District Water Quality site locations in the Fishtrap Creek Focus area -- Bender Road to Aaron Road

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Figure 2: County Sampling sites in the Fishtrap Creek Area

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Figure 3: Schematic of Stormdrain System Sampling sites and discharge points into the mainstem of Fishtrap Creek

FT2 FT3 Depot-b Daisy a Bender-c Bender-b Depot-a Homestead pond Bender-a F5a-NEof F5 F5.1 F5.2 F6 F6of F7 Aaron Dr F5b-of F5c-of Fishtrap Creek Mainstem Drayton St-a Drayton St-b Drayton St-c Drayton-d Initial Water Quality sampling approach

Because fecal coliform counts exceeded State standards at sites along the mainstem of Fishtrap Creek, the City took action to address the violations and began investigating the reach directly upstream of the high fecal counts and storm systems feeding into that reach. The City entered into a contract with the CD to conduct additionalsampling along the mainstem. The City mobilized contractors to accompany the CD on their routine sampling field visits and document outfalls. Outings by contractor staff were coordinated when possible with the County sampling effort. In addition, the City coordinated with local source control staff at the County Health Department to target business pollution prevention educational inspections.

Fishtrap Creek Source Control Desktop Assessment

To better understand the potential pollutant sources that may be contributing to the high fecal counts in the Fishtrap focus area, a preliminary desktop assessment, using guidance tips from the Center for Watershed Studies Pollutant Source Control manual, was conducted. This study identified property land use types and the presence of septic systems potentially draining to this reach. Queries were conducted using GIS software to identify desired attributes based on the assessor’s database, and County Health septic records.

The assessment identified 12 parcels with septic systems that are within the focus area and are listed in Table 1 and further located in Figures 4a and 4b.

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Table 1: Parcels (P) with Septic Systems in the Fishtrap Creek focus area between Depot and Vinup Roads

Septic locations

Address and Parcel Numbers

P1 and P2 --2 parcels just east of Depot and south of Badger 759 E. Badger Rd; 400317380538 8880 Depot Rd; 400317285493

P3, P4, and P5 --3 parcels just west of Bender and south of Badger

869 E Badger Rd; 400317516529

P6 --1 parcel just east of Bender and south of Edgewater Lane 8628 Bender Rd; 400316012181 P7--1 parcel abutting Fishtrap Creek at the end of Cedar Dr 131 E Cedar Dr; 400317446116 P8--1 parcel just west of Vinup and east of N Cascade Ct 8681 Vinup Rd; 400316257230 P9, P10 and P11-- 3 parcels just east of Vinup, north of Thalen Dr and south of Edgewater Lane

8656 Vinup Rd;400316290200

P12 --1 parcel east of Vinup and 8796 Vinup Rd; 400316312413

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Figure 4a: Parcels with septic systems in the Fishtrap Creek drainage area between Depot and Bender

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Figure 4b: Parcels with Septic Systems in the Fishtrap Creek Drainage area between Bender and Vinup

P8 P9

P12

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The land use assessment identified 35 different land use types within the focus area. Table 2 lists the land use types from the assessor’s database and references the codes that apply to the numbers on Figure 5.

Table 2: Land Use Types identified in the Fishtrap Creek focus area

Land Use Type Land Use Code

Land Use Type Land Use Code Auto Repair 188 Metal Working 111 Bank 164 MISC MANUFACTER 117, 118 Bottled Gas 178, 177 NAT/MFT Gas 216 Building Construction 209 Off/RET 281

Churches 71, 103, 114, 136 Open Space 34, 79, 89, 90, 147, 215, 236, 243, 255, 271, 276, 291

Commercial Printing 133 Other Ag Related 148

Public Park 2, 3, 97, 115, 116, 137, 222, 228, 289, 290 Other Auto/MA 32

CON/EVAP Milk 87, 88 Other Government Services 126, 167

Convenience Neighbor 221 Other SPEC CO 192, 218 Farm /Garden 205, 207 Other WHSE/ST 149 Farm Crop ET 191 Petro Refining 176 Farms 224 Plumbing Heating AC 124 Feed Animal/FO 296 Pretro BLK ST 210

Food Prep 173, 200, 202, 203, 204, 211

Retention Pond 180, 258

Golf Course 37 Schools 16, 52, 53, 55, 85, 109, 150, 181, 183, 199

Green WY/BLT 279, 288 Tennis Court 227 HIWY/ST RW 104, 105 Utilities 1, 5, 70, 151, 212, 278 Lumber Yard 162 Metal Working 111

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Figure 5: Land Use Types identified in the Fishtrap Creek focus area.

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Adaptive Management of Water Quality Sampling Program

Based on the additional sampling and the results of the desktop source study, an augmented sampling regime was adopted. Approximately 21 mainstem sites and additional outfall sites were added. Storm system monitoring was also expanded and ammonia was added as a parameter at some of the storm system sites.

The presence of ammonia in stormwater samples can be an indicator of the presence of sanitary sewage however there are other potential sources. Below is a listing of possible point sources of ammonia (available online: http://www.water-research.net/index.php/ammonia-in-groundwater-runoff-and-streams).

• Agricultural: The primary agricultural sources include accidental releases of ammonia-rich fertilizer during transport (because of vehicle accident, faulty hose connections, and human error); and livestock waste (from barnyards, feedlots, pastures, and rangeland).

• Residential and Urban: Household use of ammonia-containing cleaning products, on-lot septic systems, and improper disposal of ammonia products may contribute to nonpoint pollution.

• Point sources: The following industrial processes produce ammonia emissions and effluent: conversion of coal to coke in coke plants, metallurgic operations, ceramic production, strip mining, chemical synthesis (nitric acid, synthetic monomers, and plastics), waste gas treatment, sewage treatment plants, production of ammonium nitrate explosive, refrigeration equipment, household cleaners, oil refineries, and food processing.

Elevated levels of bacteria in the focus area have been common but not consistent. The sample results vary across sites and time with no identifiable pattern. There is little elevation change within the City of Lynden’s jurisdiction. This often leads to stagnant water or dry storm drain facilities. No flow or little flow made sampling difficult at times and frequently a sample was not attainable.

The City street crews adjusted their catchbasin cleaning circuit to prioritize vactoring out the stormwater facilities feeding into this reach. These catchbasins and storm mains had yet to reach the normal cleaning threshold and most only had a few inches of sediment. Proactively cleaning the catchbasins was hoped to reduce the “first flush” effect transporting pollutants into the downstream receiving waters. The City intends to adapt the storm system cleaning schedule where practical to give priority for cleaning areas that drain to sampling sites that have repeated high fecal counts.

Discussion of Water Quality Sampling Results

The effort to identify sources of bacteria discharging either directly or through the stormdrain system to Fishtrap Creek was inconclusive. While most samples exceeded the water quality standard, the concentrations were highly variable throughout the reach and over time. A longer duration sample pool may offer more insight into the impact of seasonality on sample variability. Sporadic high fecal counts occurred but often were followed by low counts. This would seem to indicate that there may not be cross-connections as the high values would be more persistent if a permanent connection existed. On the other hand, the time of sampling may not coincide with high usage from nearby residences. The sporadic high counts could be related to a number of causes including but not limited to:

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• re-suspension into the water column of fecal loads stored in the sediments in Fishtrap Creek, • temperature fluctuations and ultra-violet input, • pet and bird waste deposited prior to storm events, • septic system failure or leakage following high precipitation inputs, • antecedent conditions, water table level or, • intermittent or one time illicit discharge.

At this point, there is not enough data from which to develop geomeans for fecal coliform at each site. The fact that obtaining samples from outfalls and the storm system is often difficult due to stagnant water or dry conditions will continue to be a challenge in looking at trends. The detailed results of the fecal coliform sampling from late August through mid-November 2015, by date and site in the focus area, can be found in Appendix B. A summary of the findings is presented below. Three paths were investigated:

• Understanding the upstream to downstream variance in fecal coliform counts for each sampling event,

• Understanding site stormdrain line patterns over time, and • Looking at changes in inputs network-wide over time and as related to precipitation.

Variations in fecal coliform samples are presented from upstream to downstream by sampling date in Table 3. Figures 6 to 10 compare the fecal counts by sampling site and date to the water quality standard.

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Table 3: Upstream to downstream variance by sampling event

Sample Date Discussion of Variance in Fecal from upstream to downstream

8/31/15

• Mainstem sampling only • Counts were okay coming into focus area (around the 200 FC/100ml

mark) • Started to see increased counts at F6b and even higher at the outfall

F6of • Large discrepancy was noted between County and CD results at F6of

and again at F6 (Bender) • Fecal counts exceeded the standard at all stations throughout the focus

area except the outfall F5b-of draining Dayton Street area 9/8/15 • Fishtrap at Badger was above standard increasing at Aaron Dr

• Large discrepancy was noted between County and CD results at F7 (Aaron) and F6OF

• Fecal counts much above standard until F5.3 upstream of Depot east of second pedestrian bridge

• Slight increase in count at F5 pedestrian bridge in City Park • Outfall counts were less than mainstem counts except at F5.3

10/19/15 • No data; one outfall reported as submerged 11/2/15 • Outfall counts were less than mainstem at F6OF and F5a-NEOF and F5a-

SEOF downstream of F5 • Higher counts were noted from F5.5 to F5 • Catchbasin cleaning began

11/9/15 • Low counts upstream of Bender coming into City • Counts were below standard at all sites sampled

11/18/15 • Low counts upstream of Bender coming into City • Outfall low at F6.1OF but spike at F6.1 just downstream • Low again at F6b • Slight spike at F5.4OF persisting through F5.4 • Low again at F5.3 and downstream • Not sure what caused the spike in ammonia at Daisy-a; lead to

contacting County local source staff for an educational visit

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Figure 6: Fishtrap Creek Focus Area Fecal Coliform Sampling Results

Figure 7: Fishtrap Creek Focus Area Fecal Coliform Sampling Results

0

500

1000

1500

2000

2500

FT4 F7 F6b F6of F6 F5.5 F5.4 F5.3 F5.2 F5.1 F5 F5b-of

Feca

l Col

iform

(FC/

100m

l)

Sampling Site ID

8/31/15

Water Quality Standard

4500

0

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1500

2000

2500

FT4 F7 F6b F6of F6 F5.5 F5.4 F5.3of F5.3 F5.2 F5.1 F5 F5b-of

Feca

l Col

iform

(FC/

100m

l)

Sampling Site ID

9/8/15

Water Quality Standard

69003200

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Figure 8: Fishtrap Creek Focus Area Fecal Coliform Sampling Results

Figure 9: Fishtrap Creek Focus Area Fecal Coliform Sampling Results

0

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Sampling Site ID

11/2/15

Water Quality Standard

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250

Feca

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(FC/

100m

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Sampling Site ID

11/9/15

Water Quality Standard

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Figure 10: Fishtrap Creek Focus Area Fecal Coliform Sampling Results

Stormdrain line based findings:

• Bender Road storm line fecal samples never exceeded 200 FC/100ml. The ammonia standard was exceeded on 11/18/15 at the Daisy-a site. All other ammonia samples were low.

• Depot Road storm line fecal samples were below 200 FC/100ml except for a very high count on 9/8/15 at Depot-a. Could be septic input after rain but inconclusive as Depot-b was not tested that day and F5a-NEof was not yet an established sampling station. Ammonia samples along this stormdrain line were all low. Fecal results were much lower for the later sampling events (11/9/15 and 11/28/15). These results followed the catchbasin cleaning route.

• Drayton Street storm line had very little data. As with Depot Road samples, fecal counts were very high on 9/8/15 and very low on 11/18/15. No sample results were available in between these dates.

Network-wide findings:

A shift appeared to have occurred in November. Results after 11/9/15 were almost all below the standard. This may be related to catchbasin cleaning in the focus area which took place in early November. No correlation with precipitation was obvious.

At this point, no real pattern emerged that could help identify potential sources. High fecal counts occurred throughout the focus area but not consistently at one location. Sporadic high counts were followed by below standard results for the next sampling event. When two entities were sampling the same site on the same day, there were large discrepancies between the results for fecal counts. For example, on 8/13/15 both the County and the CD sampled F6-of; the County results were 30,400 FC/100ml whereas the CD’s results were 2,400. Other comparison sampling showed similar discrepancies. Some of this can be explained by the inconsistency associated with collecting a grab sample of a very non-homogeneous parameter. Also, the method of analysis could play a role. In addition, the CD sampled across a transect at F6.1where three samples were taken within minutes. The

0

200

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Feca

l Col

iform

(FC/

100m

l)

Sampling Site ID

11/18/15

Water Quality Standard

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samples varied from 1,000 FC/100ml on the southside near the bank to 600 midstream and 350 on the northside near the bank.

Conclusions

While no clear pattern or source of high fecal counts were noted, the data suggests that water quality violations continue to happen even if sporadically. With this in mind, the City plans to take the following actions as a result of this investigation:

• Continue working with the County on a coordinated sampling calendar between the County and CD/ Lynden’s efforts. Interest on storm events was targeted initially by the CD and Lynden, however, more consistent data can be collected with a coordinated sample event calendar.

• The County uses Edge Analytical labs for analysis while the CD and Lynden use Exact Scientific. Consistency in lab techniques would help eliminate a variable. Each entity has contracts and work load reasons to stick with the current labs. The County has however offered to supply duplicate samples periodically to Exact Scientific as quality assurance protocol.

• Continue to respond to dry weather outfall discharges. City staff or contractors will trace sources of dry weather flows from the outfalls to Fishtrap Creek as practical . Notification of outfall discharges from County and WCD sampling efforts will drive the schedule of drainage system monitoring

• Work further with County Health to educate businesses on good housekeeping • Work with the County to determine the status of the septic systems that may be draining to this

reach by developing a notification protocol regarding County inspections and dye test results. • Continue to fund the Conservation District’s monitoring efforts and public education and

outreach / stewardship components. • Investigate the cost of sampling sediment in Fishtrap Creek mainstem and prioritize locations to

bracket potential re-suspension issues. • Review data as it is available and determine if additional adjustments and or actions need to be

taken. The County has developed an interactive map online that will allow quicker access to lab results Whatcom County Water Quality results page and interactive maps: http://www.co.whatcom.wa.us/2170/Water-Quality-Monitoring-Results

• Establish a protocol with the County and CD and Ecology on ERTS reporting. The first agency in that knows of a violation should process the ERTS. Since the City has developed this implementation plan, S4F work should not be subject to ERTS every sampling day.

• Work with DOE and EPA to be informed of Industrial Stormwater General Permit compliance visits and enforcement issues for industries within City jurisdiction so that the City can develop appropriate response, enforcement, or permitting actions

• Within staffing limitations, the City crew will schedule more frequent cleaning of facilities upstream of elevated bacteria values.

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Appendix A

Water Quality Sampling Site Location Descriptions

Fishtrap Focus Area In-town Water Quality Monitoring Locations

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Fishtrap Focus Area In-town Water Quality Monitoring Locations

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CD Site ID Mainstem

Site ID Adjacent Storm Outlets

CD Description Coordinates Site Photo

F5a-SWof Pipe outlet by bridge, west side of Depot, south side of creek, elevated.

48.94927 -122.4524

Photo

F5a-NEof 72” Pipe outlet by bridge, east side of Depot, north side of creek. 48.9493 -122.4522

Photo

F5a (F5*) Creek east side below bridge at Depot. 48.9493 -122.4521

Photo

F5a-SEof Pipe outlet by bridge, east side of Depot, south side of creek, submerged.

48.9492 -122.4522

Photo

F5b-of (F4bof)(F5OF) Pipe outlet 150 ft. east of Depot bridge, south side of creek, adjacent playground, elevated. Downstream of F5

48.9494 -122.4517

Photo

F5 Creek east side of pedestrian bridge in City Park, peninsula, south side of creek.

48.9497 -122.4509

Photo

F5c-of Pipe outlet 770 ft. upstream of Depot, south side of creek, blue PVC pipe, near center field of ball field.

48.9505 -122.44945

Photo

F5.1 Creek 1100 ft. upstream of Depot, south side of creek, adj. to newly planted stream restoration shrubs.

48.951 -122.4483

Photo

F5.2 Creek 1550 ft upstream of Depot, south side of creek, adj. pedestrian concrete bench.

48.9514 -122.4467

Photo

F5.2b Creek 2250 ft upstream of Depot, west side of pedestrian bridge, south side of creek near shore.

48.9529 -122.4454

Photo

F5.3 Creek 2310 ft upstream of Depot, 40 ft east of pedestrian bridge, adjacent concrete bench

48.9531 -122.4453

Photo

F5.4-of Slough outlet 980 ft downstream of Bender from golf courses ponds to north, flows under pedestrian bridge.

48.9547 -122.4436

Photo

F5.4 Creek 960 ft downstream of Bender, sample site approx. 10 ft. upstream from the slough outlet.

48.9547 -122.4436

Photo

F5.4a-of Pipe outlet, 850 ft downstream of Bender, south side of creek, elevated.

48.9552 -122.4432

Photo

F5.5 Creek 380 ft downstream of Bender, north side of creek, near gazebo to the north.

48.9555 -122.4428

Photo

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F5.7 Creek 194 ft downstream of Bender, north side of creek, near telephone pole stump.

48.9556 -122.4418

Photo

F6 (F5.6) Creek west side of Pedestrian bridge & Bender Road bridge. 48.9556 -122.4413

Photo

F6of Pipe outlet, between Bender Road bridge & Pedestrian bridge to the east, north side of creek, semi-elevated.

48.9556 -122.4411

Photo

F6b (F6) Creek 27 ft east of Bender Road bridge, just upstream from pipe outlet, below Pedestrian bridge, north side of creek.

48.95554 -122.44099

Photo

F6.1 Creek 370 ft upstream of Bender bridge, north side of creek, adj. to storm water pond-swale.

48.9557 -122.4396

Photo

F6.1S At F6.1, sample 4 ft from south shore. 48.9557 -122.4396

Photo

F6.1M At F6.1, sample midstream. 48.9557 -122.4396

Photo

F6.1N At F6.1, sample 4 ft from north shore. 48.9557 -122.4396

Photo

F6.1of Pipe outlet from storm water pond-swale, 10 ft downstream from F6.1, north side of creek, semi-submerged.

48.9557 -122.4397

Photo

F6.2 Creek 800 ft upstream of Bender bridge, north side of creek, near fork in the creek.

48.9563 -122.4384

Photo

F6.3 Creek 1260 ft upstream of Bender bridge, sample from center of Pedestrian bridge.

48.95664 -122.43721

Photo

F6.4 Creek 3035 ft upstream of Bender bridge, east side of creek, near play court to the east.

48.95897 -122.43301

Photo

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City of Lynden Stormwater reconnaisance and sample site descriptions

Outfall sites

Site ID Added Date Description/Location Water Notes Sample Status

F5a-SWOF 10/19/2015 Perched outfall located on left bank off west side of road perched 4 ft high, 12” steel.

Seasonally dry dry, not sampled

F5a-SEOF 10/19/2015

Submerged outfall on left bank at base of bridge on east side of road.

Typically submerged with backwater sampled by CD

F5a-NEOF 9/8/2015 72-inch culvert on north abutment bridge Typically submerged with backwater sampled by CD

F5b-of 9/8/2015 10-inch elevated outfall on east side of creek between Depot Rd. and pedestrian bridge

Collect from end of pipe Sampled by Lynden and CD

F5c-of 9/8/2015 10-inch PVC pipe, is part of swale system Seasonally dry not sampled

F5.3-OF 9/8/2015

18-inch pipe, East side of Fishtrap Creek off trail near bridge

Collect from end of pipe Sampled by Lynden and CD

F5.4-of 9/8/2015 Appears to be a 24-inch pipe Seasonally dry sampled by CD

F6-OF 9/8/2015

72-inch culvert near north abutment at Bender Rd. crossing by Park

Collect from end of pipe Sampled by Lynden and CD

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Catch Basin/Manhole Sites

Site ID Added Date Description/Location Water Notes Sample Status

Depot a 9/8/2015 East side of Depot Rd. across from Milky Way/ Storm Main-72"

1-6" flowing water in bottom Sampled by Lynden

Depot b 11/9/2015 access to 72” storm main east side of road across street from golf pond.

1-6" flowing water in bottom Sampled by Lynden

Drayton St a 10/19/2015

manhole access to Type 2 catch basin in front of YMCA in street

Two inlet pipes, Cannot collect sample when not flowing

not sampled 10-19-15 or 11-2-15 or 11-9-15

Drayton St b 9/8/2015 SW of Hawley&Drayton/Bolted Rect. Steel Lid Collected from sump, 1-2 drops per

second flow Sampled only on 9/8/2015

Drayton St c 9/8/2015 SE of Hawley&Drayton/Grated Lid Collected from sump, 1 drop per

second flow Sampled only on 9/8/2015

Drayton St d 11/9/2015

Stormwater manhole with channel bottom just west of YMCA at road bend

Three inlet pipes, could not sample 11/9/15 but discharging, sampled perched pipe from south 11/18/15

Sampled by Lynden 11/18/15

Daisy-a 11/18/2015

Type 1 catch basin with flowing inlet pipe from Martins Feed to get sample from (not from sump).

One inlet pipe from North, collect from end of pipe

Sampled by Lynden

Bender a 9/8/2015

East side of Bender Rd. across from Homestead Blvd./Storm Main-72" off parking lot to Bender Fields

1-6" flowing water in bottom Sampled by Lynden

Bender b 11/9/2015

Access to 72” storm main at Bender/Aaron Southeast in grass.

1-6" flowing water in bottom Sampled by Lynden

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Site ID Added Date Description/Location Water Notes

Sample Status

Bender c 11/18/2015

Site flowing from Martins Feed, Type 1 catch basin with no flow, but sediment line on 12“ inlet pipe

no flow not sampled

Recon-a 10/19/2015 Ditches draining golf ponds to Station FT5.3 seasonally dry sampled by CD 11-18-15

Recon-b 11/2/2015

looked at Catchbasin and manhole near Aaron Dr., not flowing, could not get sample.

seasonally dry not sampled

Recon-c 11/9/2015

Looked at the CB on Woodfield draining to Depot storm main and no flow.

seasonally dry not sampled

Recon-d 11/9/2015

Looked at CB on storm line draining to Bender from Aaron and no flow.

seasonally dry not sampled

Recon-e 11/9/2015

Looked at CB on Edgewatewer off Bender where storm line flows N to Fishtrap and it was not flowing.

seasonally dry not sampled

Recon-f 11/18/2015 Looked at type 2 at Brook Street cold-de-sac, no flow seasonally dry not sampled

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Appendix B

Water Quality Sampling Results Since August, 2015

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Entity

Wha

tcom

Co

unty

Cons

erva

tion

Dist

rict

Cons

erva

tion

Dist

rict

Cons

erva

tion

Dist

rict

/Lyn

den

Cons

erva

tion

Dist

rict

Wha

tcom

Co

unty

Cons

erva

tion

Dist

rict

Description

Ditch at Depot and Badger

Depot Rd Southeast outfall typically submerged

Bender bridge northeast outfall typically submerged

outfall from cooling tower

mainstem mainstem mainstem

Site Bellingham FT2 F5a-SEOF F5a-NEOF F5b-of F5a F5 F5

Sample Date/Type

48 hr Antecedent Precip (in)

Fecal Fecal Fecal Fecal Fecal Fecal Fecal

8/31/2015 1.04 NE 200 (CD) 755 1100 9/8/2015 0.62 NE 112 (Lynden) 300 270

10/19/2015 0.06 submerged 11/2/2015 1.12 380 104 0 (CD) 1400 11/9/2015 0.67 4 80 50 80 90 110

11/18/2015 0.83 250 <4 250 120 NE = not an established station on date of sample NS= not sampled on this day due to scheduling, prioritization, or no flow

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Entity

Cons

erva

tion

Dist

rict

Cons

erva

tion

Dist

rict

Cons

erva

tion

Dist

rict

Cons

erva

tion

Dist

rict

/Lyn

den

Cons

erva

tion

Dist

rict

Cons

erva

tion

Dist

rict

/Lyn

den

Cons

erva

tion

Dist

rict

Cons

erva

tion

Dist

rict

Description

mainstem

mainstem

mainstem

outfall

mainstem

outfall, seasonally dry

mainstem

mainstem

Site Bellingham F5.1 F5.2 F5.3 F5.3 OF F5.4 F5.4-of F5.5 F5.7

Sample Date/Type

48 hr Antecedent Precip (in)

Fecal Fecal Fecal Fecal Fecal Fecal Fecal Fecal

8/31/2015 1.04 600 900 800 NE 4500 NE 1500 NE

9/8/2015 0.62 136 208 152 420 (Lynden) 2000 dry 800 NE

10/19/2015 0.06 NE 11/2/2015 1.12 520 390 1600 900 (CD) 420 1000 470 11/9/2015 0.67 80 72 100 <4 100 (CD) 68 100

11/18/2015 0.83 200 200 120 400 320 200 NE = not an established station on date of sample NS = not sampled on this day due to scheduling, prioritization, or no flow

Fishtrap Focus Area In-town Water Quality Sampling Results

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Entity

Wha

tcom

Co

unty

Cons

erva

tion

Dist

rict

Wha

tcom

Co

unty

Wha

tcom

Co

unty

Cons

erva

tion

Dist

rict

/Lyn

den

Cons

erva

tion

Dist

rict

Cons

erva

tion

Dist

rict

Cons

erva

tion

Dist

rict

Description

mainstem Immediately DS of Bender Rd

Ditch at Badger and Bender

outfall us of bender rd bridge

outfall us of bender rd bridge

immediately US of Bender RD

mainstem outfall

Site Bellingham F6 F6 FT3 F6of F6of F6b F6.1 F6.1of

Sample Date/Type

48 hr Antecedent Precip (in)

Fecal Fecal Fecal Fecal Fecal Fecal Fecal Fecal

8/31/2015 1.04 6,100 500 30,400 2400 (CD) 500 NE NE

9/8/2015 0.62 400 6900 471 1200 (Lynden) 3200 NE NE

10/19/2015 0.06 NE NE

11/2/2015 1.12 400 48 (CD) 400 600 (midstream) NE

11/9/2015 0.67 100 44 (CD) 96 90 4 11/18/2015 0.83 200 200 100 1200 8

NE = not an established station on date of sample NS = not sampled on this day due to scheduling, prioritization, or no flow

Fishtrap Focus Area In-town Water Quality Sampling Results

29

Entity

Cons

erva

tion

Dist

rict

Cons

erva

tion

Dist

rict

Cons

erva

tion

Dist

rict

Cons

erva

tion

Dist

rict

Wha

tcom

Co

unty

Cons

erva

tion

Dist

rict

Wha

tcom

Co

unty

Description

mainstem mainstem mainstem mainstem Fishtrap @ Aaron Dr.

Fishtrap @ Aaron Dr.

Fishtrap @Badger

Site Bellingham F6.2 F6.3 F6.4 F6.5 F7 F7 (F6a) FT4

Sample Date/Type

48 hr Antecedent Precip (in)

Fecal Fecal Fecal Fecal Fecal Fecal Fecal

8/31/2015 1.04 NE NE NE NE 200 200 210 9/8/2015 0.62 NE NE NE NE 400 3200 330

10/19/2015 0.06 NE NE NE NE 11/2/2015 1.12 380 NE NE NE 11/9/2015 0.67 72 60

11/18/2015 0.83 160 300 150 32 NE = not an established station on date of sample NS = not sampled on this day due to scheduling, prioritization, or no flow

Fishtrap Focus Area In-town Water Quality Sampling Results

30

Entity

Lynd

en

Lynd

en

Lynd

en

Lynd

en

Lynd

en

Description

stormwater main stormwater main Catch basin, trickle of flow sampled sump

Catch basin, trickle of flow sampled sump

manhole with channel bottom, sampled perched pipe from south

Site Bellingham Depot-a Depot-b Drayton-b Drayton-c Drayton-d

Sample Date/Type

48 hr Antecedent Precip (in)

Fecal Ammonia Fecal Ammonia Fecal Fecal Fecal Ammonia

8/31/2015 1.04 NE NE NE NE NE NE NE NE 9/8/2015 0.62 1600 NT NE NE 12600 3600 NE NE

10/19/2015 0.06 32/32 (duplicate) NT NE NE NS NS NE NE

11/2/2015 1.12 88/48 (duplicate)

0.41/0.43 (duplicate) NE NE NS NS NE NE

11/9/2015 0.67 4 0.35 4 0.42 NS NS NS NS 11/18/2015 0.83 2 0.54 24 0.50 NS NS <2 0.18

NT = not tested parameter was not included in regime on date of sample NE = not an established station on date of sample NS = not sampled on this day due to scheduling, prioritization, or no flow

Fishtrap Focus Area In-town Water Quality Sampling Results

31

Entity Lynden Lynden Lynden

Description

stormwater main stormwater main Catch basin, sample inlet pipe from Martins Feed.

Site Bellingham Bender-a Bender-b Daisy-a

Sample Date/Type

48 hr Antecedent Precip (in)

Fecal Ammonia Fecal Ammonia Fecal Ammonia

8/31/2015 1.04 NE NE NE NE NE NE

9/8/2015 0.62 148/92 (duplicate) not tested NE NE NE NE

10/19/2015 0.06 8 not tested NE NE NE NE 11/2/2015 1.12 100 0.44 NE NE NE NE 11/9/2015 0.67 24 0.38 40 0.42 NE NE

11/18/2015 0.83 84 0.55 112 0.47 200 12.06 NE = not an established station on date of sample NS = not sampled on this day due to scheduling, prioritization, or no flow