1
Ground Water Transport Processes
Ground WaterFlow Direction
Retardation of Contaminants that Sorb to Aquifer Solids
Plume Migration inFlow Direction
2
Ground Water PollutantsNon-point Human, Animal and Agricultural
Sources of Nitrate
Ground Water PollutantsAgricultural Chemicals
3
Ground Water PollutantsAgricultural Chemicals
Atrazine in WI groundwater
Pesticide detections
Ground Water PollutantsLandfill Leachate
Active and ClosedLandfills in WI
Volatile Organic Contaminants
4
Ground Water PollutionIndustrial Point Sources
Dense Nonaqueous Phase LiquidDNAPL
Ground Water PollutantsFuel Spills and Leaks
Dissolved Gasoline Components
Light Nonaqueous Phase Liquid
5
Superfund Sites in Wisconsin
Green = currentBlue = deleted
Purple = proposed
From USEPA
Ground Water PollutantsNaturally occurring contaminants
Arsenic Radionuclides
6
From USGS Circular 1156
Radon
7
Ground Water RemediationSuperfund Remedial Actions
Ground Water RemediationCommon Strategies
Source Removal Pump-and-Treat
8
Ground Water RemediationAdvanced Strategies
Pump-and-Treat with Barrier Steam Injection, Vacuum Extraction
Ground Water RemediationEmerging Strategies
Natural Attenuation by Biodegradation
9
Ground Water RemediationEmerging Strategies
Permeable Reactive Barriers
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