Is Silver Creek Estuary Lake Polluted?
Yes — Silver Creek Estuary Lake in Green Lake County, Wisconsin is on the EPA's Clean Water Act 303(d) impaired-waters list (2024 assessment cycle). It is cited for Pathogens (E. coli, fecal). No cleanup plan (TMDL) has been completed yet. "Impaired" is a legal designation, separate from the lake's EPA condition class water-quality readings: it means at least one designated use (such as swimming, aquatic life, or fish consumption) does not meet state standards for the listed pollutant.
EPA 303(d) Listing
| On 303(d) impaired list | Yes |
| Cleanup plan (TMDL) | Not yet written |
| Assessment cycle | 2024 |
| EPA IR category | 5 |
| Location | Green Lake County, Wisconsin |
Pollutants Cited
- Pathogens (E. coli, fecal) — listed by EPA as exceeding water-quality standards for at least one designated use.
Specific parameters in the EPA record: ESCHERICHIA COLI (E. COLI).
What this means for using Silver Creek Estuary Lake
Because Silver Creek Estuary Lake is listed for Pathogens (E. coli, fecal), swimming can be affected — check for posted beach advisories, especially after heavy rain or during visible algae. An impairment listing does not mean the lake is closed — most impaired lakes remain open for boating and swimming. It means a specific pollutant exceeds a standard for a specific use. Silver Creek Estuary Lake carries an overall water-quality readings of — and phosphorus at 125.5 µg/L — see the full breakdown on the lake report. The official EPA assessment is available in the ATTAINS waterbody report.
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