Clean Water Act discharge permit · NPDES ILG582003
MOUNDS STP, CITY OF, Mounds, IL: NPDES ILG582003 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
MOUNDS STP, CITY OF, held by MOUNDS, CITY OF, holds NPDES permit ILG582003, which discharges to Unnamed Trib Of Cache River. EPA’s file records it issued June 19, 2014 and expiring June 30, 2018. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | MOUNDS STP, CITY OF |
|---|---|
| Permittee as filed | MOUNDS, CITY OF |
| NPDES ID | ILG582003 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | June 19, 2014 |
| Expiration date | June 30, 2018 |
| Address | Mounds, IL 62964 |
| Receiving water | UNNAMED TRIB OF CACHE RIVER |
| Subwatershed | Hess Bayou-Ohio River (HUC 051402060703) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 9With a violation of any kind
- 3With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| BOD, carbonaceous [5 day, 20 C] | 4 | 122 | 38 | June 30, 2026 | 1,496% over the limit |
| Solids, total suspended | 5 | 133 | 26 | April 30, 2026 | 197% over the limit |
| Oxygen, dissolved [DO] | 1 | 31 | 15 | September 30, 2025 | 67% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 72 | 0 | ||
| pH | 2 | 42 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 23 | 0 | ||
| Chlorine, total residual | 1 | 21 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 16 | 0 | ||
| Coliform, fecal general | 1 | 8 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 8Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 10, 2026 | Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
| July 8, 2026 | Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| June 26, 2026 | Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| June 26, 2026 | Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| June 9, 2026 | Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| March 10, 2026 | Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| March 5, 2026 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| April 5, 2025 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID ILG582003 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.