eric vowinkel & dan sullivan methods and data comparability board crowne plaza dulles, feb. 22,...
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Eric Vowinkel & Dan Sullivan
Methods and Data Comparability Board
Crowne Plaza Dulles, Feb. 22, 2008
NEMI and WQDE
NEMI Background What’s New Plans
Data Elements for Physical Habitat Background Status of current list
Free, online searchable clearinghouse of methods and procedures – regulatory and non-regulatory
Compare and contrast the performance and relative cost
EPA & USGS CRADA http://www.nemi.gov/
Methods in NEMI
882 Chemical 547 Inorganic 257 Organic
47 Biological 21 Physical 18 Toxicity Assay
Who Uses NEMI?
Feb. 9-16, 2008 Requests for pages: 3,091 Avg. page requests per day: 441
Who Uses NEMI?
Who Uses NEMI?
NEMI-CBR
Extension of NEMI for Homeland SecurityAdds fields:
RapidityScreeningConfirmatory
Access by permission
Plans for NEMI
Several areas interwoven with Board: Statistical methods Sensors Emerging contaminants
New features Full-text searching Method archiving Search history
New Methods Physical habitat Multi-probes Fat bags
PHab data elements
Spatial elements
Typical Stream Chemistry Sampling: Point
Spatial elements
PHab Products
Seek ACWI approval, April 2008 Fact Sheet for the Conference Web site – resources, links, background
material Wish List
Updated Data Elements report Workshop at a conference
http://acwi.gov/methods/
The Super Bowl Flush
It is estimated that at halftime of the Super Bowl, across the United States 90 million people will flush about 350 million gallons of water down the toilet at the same time. It is equivalent to the amount of water that flows over Niagara Falls every 39 minutes.
MDCB New DirectionsFrom recent Board & Council meetings—
issues consistently raised include• Contaminants• Sensors• Statistical methods• Event, continuous, and real-monitoring
Need to prioritize issues based on needs of the water-quality community including the National Network
Contaminants--Problems• New analytical methods to detect a wider range of
contaminants in the hydro/geo/biological cycles• Contaminant MRLs are decreasing orders of
magnitude• Are results from these new methods comparable?• Emerging contaminants – is there a process for
identifying what contaminants should be of concern?
• Emerging Contaminants: Identification, Concerns, Actions - Roland Hemmitt, EPA Region 2
• USGS National Program Efforts in Emerging Contaminants – Herb Buxton, USGS Toxic Substances Hydrology Program
• Emerging Contaminants: Monitoring & Standards Development – Leslie McGeorge, NJDEP
• Perchlorate Case Studies:– Potable Water Occurrence & MCL Development – Judy Louis,
NJDEP/Division of Science, Research &Technology– Surface Water Monitoring - Tom Vernam, NJDEP/WM&S
• The Effects of Water Treatment on Emerging Contaminants – Jeff Fischer, USGS NJ Water Science Center
• Monitoring Emerging Contaminants in Groundwater – Mike Serfes, NJDEP/NJGS
• Monitoring Emerging Contaminants in the Tidal Delaware River – Ronald MacGillivray, DRBC
Emerging Contaminants NJWMCC Meeting—1/23/08
http://www.nj.gov/dep/wms/wmccmeetinginfo.html
Emerging Contaminants
• Human Drugs • Veternary Drugs• Antibiotics • Hormones• Steroids • Detergents• Plastics • Antioxidants • Fire retardants • Disinfectants• Fumigants • Fragrances• Insecticides • Repellants• Plastics • Coal tar sealants• Algal toxins • Nanoparticles• Perfluoronated cmpds. • Personal care products
Contaminants--Objectives
• Recommend a list of contaminants to be monitored in the Network
• Prioritize the contaminants into high, medium, and low need by hydrologic compartment
• Determine appropriate MRLs appropriate in each hydrologic compartment
• Suggest appropriate analytical methods
Sensors--Problems
• Sensor technology is evolving rapidly• No central repository available to compare
MRLs, precision, bias, “greenness”, etc• Comparability of results among sensors is
poorly understood• The Network recommends placement of
continuous real-time sensors in estuaries but guidance on types of sensors and frequency of data collection is limited
Sensors--Objectives
• Develop a white paper to outline the approach• Store sensor technologies in a database like NEMI• Create a web-site to guide users on sensor use• Outside experts
– EPA ETV Program– Sandia National Labs (SNL)– Department of Defense (DoD)– Homeland Security (DHS)– Private sector– USGS users
Statistical Methods--Problems
• Monitoring networks may include different designs: • discrete • probabilistic• continuous • satellite imagery
• The National Monitoring Network is a network of networks• Sites selected differently • Data collected at different frequencies• Is it possible to integrate discrete, probabilistic, continuous,
and satellite data sets generated by the Network or other networks?
• If so, how can we integrate and use the data effectively?
Statistical Methods--Objectives
• Connect with the Council’s Water Information Strategies (WIS) Work Group to evaluate methods of analysis of available data sets
• Provide guidance on:– appropriate use of statistical methods and
reporting of data from the Network and other monitoring efforts
– methods to integrate various data sets
Event, Continuous, and Real-time Monitoring -- Problems
Network river sites: Sample 16x per year with consideration for flow conditions
• What constitutes an “event”?• For event samples, what type of sample
collection technique is appropriate?Continuous and real-time sensors are to be used
at estuary sites• What frequency of capturing/reporting data from
continuous monitors is optimal?What are the best methods to estimate
contaminant loads from rivers to estuaries to coastal areas?
Event, continuous, and real-time monitoring--Objectives
Provide guidance on:• appropriate sampling methods and frequency of
sample collection for event monitoring• magnitudes of events and methods to collect
comparable samples• appropriate frequency of capturing/reporting
data from continuous monitors• methods of estimating loads from rivers to
estuaries to coastal waters:
Moving Forward
• White papers for needs assessments where appropriate
• Council and ACWI concurrence
• Recruit new members (Atlantic City)
• Short and long-term needs– Web sites for guidance materials– Fact Sheets– Other?
Where: Atlantic City Convention Center