point- and non-point source pollution in nearshore … · adriana felix-salgado office of water...
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Fran Kremer, Ph.D.Office of Research and Development
Adriana Felix-SalgadoOffice of Water
Point- and non-point source pollution in nearshore coastal and inland waters
Office of Research and DevelopmentSeptember 27, 2017
10/10/20171 U.S. Environmental Protection Agency
• Where are the geographic areas of
interest?
• What are the sources of (satellite) data?
• How do you (or does your organization)
use satellite data for your (their) routine
water quality monitoring or research
activities?
• How do you envision to use products
if they become available on a routine
basis? Or how satellite data can
further help your work or
organization’s activities
Meeting Focus
Point- and Non-point source pollution in
nearshore coastal and inland waters
•Pipelines along inland waterways or coastal areas can benefit from satellite data
• Inland water impacts from landfills.
• Data on groundwater levels, subsidence, and associated drought conditions can assist in assessing water quality impacts
• Develop a strategy to integrate land-based, aerial, and satellite monitoring data to provide improved tools to protect our water resources
10/10/20172 U.S. Environmental Protection Agency
Pipelines• Pipelines crossing critical
waterways may be compromised
in extreme precipitation events
–Scouring
–High flow destabilize lines
• Satellite data especially useful for
lines crossing waterways used for
drinking water supplies
• Integrate with USGS flow data
• Assist in
–Early warning system
–Post spill assessment
9/27/173 U.S. Environmental Protection Agency
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• Superfund, industrial and municipal landfills require
short- and long-term monitoring, pre- and post-closure
• Number of MSW landfills decreased from the 1980s
(~7900) to now (~1900), but larger facilities today
• Landfill temperature and vegetation differences can
assist in determining landfill performance and potential
impacts to water quality
• Landfills with less vegetation may indicate stronger
leachate with potential water quality impacts
• Extreme weather events (wet and dry) can lead to
instability and decreased performance
• Many landfills are located near waterways
• Satellite data (3 m) could assist in
• Early warning of landfill performance for T/cover
• Satellite and stream gauge data warning for
extreme weather
Inland water Impacts from Landfills
10/10/20175 U.S. Environmental Protection Agency
Drought and Ground Water Quality:
Understanding the Spatial Implications of
Contaminants Impacting Ground Water Supplies
Base scenario with 2 pumping wells
and 4 sources
3rd well is vulnerable to all sources,
one original well no longer vulnerable
Change pumping rate of 1 well
Drought and Ground Water Quality
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Drought, ground water pumping and
subsidence impacts on water quality
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Subsidence contributes to water quality
and supply impacts
• NASA satellite and aerial mapping
shows significant subsidence
• An aqueduct has dropped more than
2 feet, reducing flow of water
• Significant pipeline infrastructure,
underground storage tanks in areas
of subsidence, can lead to
infrastructure integrity issues
8 Improved water quality and quantity
EPA
•Water quality, infrastructure performance
USDA/USGS
•Drought, stream flow, water quality
NASA
•Water quality, drought, subsidence, T/veg
Contacts
• Dr. Fran Kremer – [email protected]
• Dr. Adriana Felix-Salgado – [email protected]
• Oil Spills
–Dr. Robyn Conmy – [email protected]
• Landfills
–Dr. Thabet Tolaymat – [email protected]
• Ground water contaminant transport/modeling
–Dr. Jim Weaver – [email protected]
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