diapositiva 1 - new jersey winter 16 nwqmc...title: diapositiva 1 author: mariajose created date:...
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National Water Quality
Monitoring Council (NWQMC)
Informationhttp://acwi.gov/monitoring/
Leslie McGeorge, NWQMC Region 2 Representative
NJDEP – DWM&S/Bureau of Freshwater & Biological
Monitoring
January 19, 2017
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National Water Quality Monitoring Council
Co-Chairs: EPA and USGS
Goal: Champion sound water quality information development &
use for natural resources management & environmental protection
Objectives:
- Stimulate monitoring improvements for comparable, scientifically
defensible information on water quality
- Through coordination, collaboration, & communication form
monitoring partnerships at the national, tribal, regional, state &
watershed levels
http://acwi.gov/monitoring/
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Overview*• National Water Quality Portal (WQP)
– NJ Training (flyer)
– New Features
• Nutrient Data Exchange
– USGS Nutrient Metadata Project
– EPA WQX/STORET Nutrient Data Review
• California Water Monitoring Council HABs Portal
• Key 2017 NWQMC Priorities
* Draft Minutes from Nov 29- Dec 1, 2016 NWQMC Meeting - handout
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National Water Quality Portal
• NWQMC, EPA & USGS tool – integrates NWIS, STORET & STEWARDS
data
• Contributors - federal, state, tribes, territories, watershed groups &
academics
• Types – physical/chemical, biological, habitat, metrics & indices (coming
soon)
• Data provided in multiple formats – excel, tab or comma separated, KML &
WQX
• FY17 focus – additional data partners & sources, Metadata, videos,
tutorials, training
http://waterqualitydata.us
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National Water Quality PortalNJ Training Opportunity*
• Dwane Young – EPA HQ
• February 8, 9:30am-12:00pm – DEP HQ– Snow date – March 13
• Focus – portal overview, search features, new
tools, continuous data
* See flyer
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New and coming soon to the
Portal• Upstream/downstream tracing
• Integration across multiple water programs
• Additional open source tools (Data
Analysis Tool)
• Integration with sensor data
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Dwane Young, EPA HQ
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USGS Nutrient Metadata Study
From final USGS publication (Lori Sprague) available at::
http://www.sciencedirect.com/science/article/pii/S0043135416309642.
• USGS study of >25M nutrient records collected by 488
organizations since 1899
• Id’d inconsistencies in metadata
• Different organizations often use different methods for reporting
same metadata elements
• Also may be missing or ambiguous information for 1 or more key
metadata elements (e.g. fraction, chemical form, parameter
name, units of measurement)
• Metadata harmonization necessary for secondary use to avoid
different assumptions/conclusions
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EPA WQX/STORET Nutrient Data Review
Nutrient Data in the Portal
▪ Over 33 million results for over 500K stations
▪ WQX/STORET contribute 19.5 million ~59%
▪ In the past 3 years, Phosphorus is the most commonly reported characteristic, followed by Kjeldahl Nitrogen, Inorganic nitrogen, Orthophosphate, and Ammonia
Laura Shumway, EPA HQ
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The Data Ambiguities for
secondary users▪ “Total” is being used in WQX to represent the sum of all forms and an unfiltered
sample
➢ In the last 3 years “Total” is the most commonly reported sample fraction for nutrients representing ~2 million of the ~2.5 million reported sample fractions.
▪ Synonymous Characteristics
➢ 5 different ways to capture “Total Nitrogen” (sum of all forms nitrogen)
▪ Incomplete nutrient records
➢ ~30% of nutrients captured in the last 3 years are missing an essential metadata element needed to use the record for analyses
➢ *Complete record contains: Characteristic name, sample fraction, method speciation, result value and unit, & analytical method
▪ Invalid characteristic/analytical method combinations
▪ Censored data not captured correctly
➢ This is a product of users “getting around the rules” and submitting data with a “<“, “>” or some other character. When a user submits a “< 0.2” in the result value, they are not required to provide a detection limit type.
Laura Shumway, EPA HQ
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Best Practices
Excerpted from Laura Shumway, EPA HQ
1. Correctly documenting censored data
2. Consistent use of naming characteristics
3. Documenting method speciation and sample
fraction
4. Correctly documenting a complete nutrient
record
___________________________________
List of proposed changes to be released as part of
EPA WQX 3.0
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Jon Marshack, CA WQ Monitoring Council
CA Water Quality Portal
www.mywaterquality.ca.gov
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Jon Marshack, CA WQ Monitoring Council
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Key 2017 NWQMC Priorities Include:
• Water Quality Portal• Increasing data submissions from multiple organizations
• Data Quality – Metadata focus
• Certification Program for WQ Monitoring
Professionals
• Water Quality Standards (new area)• Survey of existing WQS
• Focus on WQS issues related to monitoring
• Evaluating Council Progress in meeting its
Goals
• Volunteer Monitoring