Clean Water Act discharge permit · NPDES IL0021521
METAMORA SOUTH STP, VILLAGE OF, Metamora, IL: NPDES IL0021521 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
METAMORA SOUTH STP, VILLAGE OF, held by METAMORA, VILLAGE OF, holds NPDES permit IL0021521, which discharges to Walnut Creek. EPA’s file records it issued July 9, 2018 and expiring July 31, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | METAMORA SOUTH STP, VILLAGE OF |
|---|---|
| Permittee as filed | METAMORA, VILLAGE OF |
| NPDES ID | IL0021521 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | July 9, 2018 |
| Expiration date | July 31, 2023 |
| Address | Metamora, IL 61548 |
| Receiving water | WALNUT CREEK |
| Subwatershed | Town of Metamora-Walnut Creek (HUC 071300040601) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 8With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Oxygen, dissolved [DO] | 5 | 85 | 48 | July 31, 2025 | 73% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 155 | 15 | May 31, 2006 | 300% over the limit |
| Solids, total suspended | 5 | 179 | 14 | February 29, 2004 | 77% over the limit |
| pH | 2 | 74 | 6 | May 31, 2026 | |
| Flow, in conduit or thru treatment plant | 4 | 136 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 34 | 0 | ||
| Chlorine, total residual | 1 | 33 | 0 | ||
| Coliform, fecal general | 1 | 8 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 0 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0021521.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, IL0021521.
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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 IL0021521 there.
Nearby on the register
- Discharge permits in Metamora
- Every permit record in Metamora, A to Z
- Discharge permits in Illinois
- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.