Live Map
Water Quality Risk Across the United States
Enterococcus and E. coli are the EPA-recommended bacterial indicators for coastal and freshwater quality. Each point combines lab measurements and environmental data to estimate current risk. Sites are tagged as Lab Verified or Model Predicted.
EPA Thresholds:E. coli: >235 CFU/100mLFecal Coliform: >500 CFU/100mLEnterococcus: >130 CFU/100mL
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Sites in Current View
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| Site Name | Type | Source | Risk | SamplesTotal historical lab samples ever recorded at this site | Last SampleDate of the most recent data point |
|---|---|---|---|---|---|
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