NPDES IN0040649 · Clean Water Act
SILVER LAKE WWTP, Silver Lake, IN: NPDES IN0040649 discharge permit, effluent exceedances, inspections, penalties
SILVER LAKE WWTP, Silver Lake, Indiana: Individual permit IN0040649; Publicly owned treatment works; Effective; issued April 28, 2016, term to September 30, 2021, by IDEM; discharges to EEL R (WABASH) VIA SILVER LAKE TRIB.
8 of the 17 pollutants listed for NPDES IN0040649 have no violation or effluent exceedance.
- BOD, carbonaceous [5 day, 20 C]: 2 limits, 105 violations of any kind, 21 effluent exceedances, latest March 31, 2024, largest 225% over the limit.
- pH: 2 limits, 90 violations of any kind, 6 effluent exceedances, latest March 31, 2011.
- Solids, total suspended: 2 limits, 88 violations of any kind, 6 effluent exceedances, latest June 30, 2013, largest 103% over the limit.
- Dilution factor: 1 limit, 35 violations of any kind, 4 effluent exceedances, latest June 30, 2014, largest 840% over the limit.
- E. coli, colony forming units [CFU]: 3 limits, 30 violations of any kind, 4 effluent exceedances, latest July 31, 2013, largest 19,252% over the limit.
- Flow, in conduit or thru treatment plant: 2 limits, 122 violations of any kind.
- Streamflow: 1 limit, 75 violations of any kind.
- Nitrogen, ammonia total [as N]: 2 limits, 66 violations of any kind.
- Flow, total: 1 limit, 33 violations of any kind.
- Copper, dry weight: 2 limits.
- Cadmium, dry weight: 2 limits.
- Number of Events: 2 limits.
- Molybdenum, sludge, total, dry weight [as Mo]: 2 limits.
- Zinc, sludge, total, dry weight [as Zn]: 2 limits.
- Lead, sludge, total, dry weight [as Pb]: 2 limits.
- Nickel, sludge, total, dry weight [as Ni]: 2 limits.
- Mercury, sludge, total, dry weight [as Hg]: 2 limits.
- June 1, 2026: Evaluation (S).
Indiana holds 541 Publicly owned treatment works coverages of this permit type in EPA’s file; 12 were issued before IN0040649.
Coverages issued nearest IN0040649
- 2011-05-20: LAGRANGE COUNTY RSD - FISH & ROYER LAKES WWTP, Lagrange: IN0058505, held by LAGRANGE CO RSD - FISH AND ROYER
- 2012-05-31: CANNELTON CSS, Cannelton: INM062901, held by CANNELTON COMBINED SEWER SYSTEM
- 2013-02-26: BELLEVILLE CONSERVANCY DISTRICT, Clayton: IN0049581, held by BELLEVILLE WWTP
- 2015-12-17: LIEBER SRA, CAGLES MILL LAKE WWTP, Cloverdale: IN0030279
- 2016-02-18: FORT WAYNE WWTP, Fort Wayne: IN0032191
- 2016-05-11: ARCADIA WWTP, TOWN OF, Arcadia: IN0021334
- 2016-05-11: ADVANCE WWTP, TOWN OF, Advance: IN0039705
- 2016-05-11: LA OTTO REGIONAL SEWER DISTRICT, Laotto: IN0058611, held by LAOTTO REGIONAL SEWER DISTRICT
- 2016-05-27: LACONIA MUNICIPAL WWTP, Laconia: IN0061239
- 2016-06-17: EAST CHICAGO SANITARY DISTRICT, East Chicago: IN0022829, held by EAST CHICAGO SANITARY DISTRICT WWTP
SILVER LAKE WWTP among its neighbors
6 discharge permits are in the Silver Creek subwatershed (HUC 051201040501); IN0040649 is one. Its county: 86, 5 major; IN0040649 is minor permit.
Other permits in the Silver Creek subwatershed (HUC 051201040501)
- SILVER LAKE DOLLAR GENERAL, Silver Lake: INRA11078, minor, term to 2027-12-28
- SILVER LAKE MINI MART, Silver Lake: ING080323, minor, term to 2019-11-30
- SPEEDWAY SAND & GRAVEL INCORPORATED DISKO PLANT, Silver Lake: ING490105, minor, term to 2025-09-30
- TOWN OF SILVER LAKE, Silver Lake: INRA18139, minor, term to 2031-05-12
- WABASH VALLEY MANUFACTURING INC., Silver Lake: INP000178, minor, term to 2016-12-31
Identity
| Facility | SILVER LAKE WWTP |
|---|---|
| Permittee | SILVER LAKE WWTP |
| NPDES ID | IN0040649 |
| Status | Effective |
| Type | Individual permit |
| Class | Minor |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 28, 2016 |
| Expires | September 30, 2021 |
| Agency | IDEM |
| Address | Silver Lake, IN 46982 |
| Receiving water | EEL R (WABASH) VIA SILVER LAKE TRIB |
| Subwatershed | Silver Creek (HUC 051201040501) |
| SIC | 4952 – Sewerage Systems |
NPDES IN0040649: effluent limits and exceedances
SILVER LAKE WWTP (NPDES IN0040649): 17 pollutants on file, 17 limited; 9 with a violation of any kind, 5 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| BOD, carbonaceous [5 day, 20 C] | 2 | 105 | 21 | March 31, 2024 | 225% over the limit |
| pH | 2 | 90 | 6 | March 31, 2011 | |
| Solids, total suspended | 2 | 88 | 6 | June 30, 2013 | 103% over the limit |
| Dilution factor | 1 | 35 | 4 | June 30, 2014 | 840% over the limit |
| E. coli, colony forming units [CFU] | 3 | 30 | 4 | July 31, 2013 | 19,252% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 122 | 0 | ||
| Streamflow | 1 | 75 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 66 | 0 | ||
| Flow, total | 1 | 33 | 0 | ||
| Copper, dry weight | 2 | 0 | 0 | ||
| Cadmium, dry weight | 2 | 0 | 0 | ||
| Number of Events | 2 | 0 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 2 | 0 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 2 | 0 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 2 | 0 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 2 | 0 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 2 | 0 | 0 |
NPDES IN0040649: inspections, violations and enforcement
NPDES IN0040649: 1 inspection
| Date | What EPA recorded | Agency |
|---|---|---|
| June 1, 2026 | Evaluation | S |
NPDES IN0040649 (SILVER LAKE WWTP): no single-event violation, formal enforcement action and informal enforcement action on file.
Watch NPDES IN0040649
NPDES IN0040649: one email when its EPA record changes — $99/month.
Permits near NPDES IN0040649
NPDES IN0040649: 17 pollutant rows, 1 dated events; ICIS-NPDES download, loaded October 14, 2026.