Clean Water Act discharge permit · NPDES IL0029947
MOLINE - NORTH SLOPE STP, Moline, IL: NPDES IL0029947 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 34Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
MOLINE - NORTH SLOPE STP, held by MOLINE, CITY OF, holds NPDES permit IL0029947, which discharges to Sylvan Slough/Mississippi River. EPA’s file records it issued September 28, 2015 and expiring September 30, 2020. 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 | MOLINE - NORTH SLOPE STP |
|---|---|
| Permittee as filed | MOLINE, CITY OF |
| NPDES ID | IL0029947 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | September 28, 2015 |
| Expiration date | September 30, 2020 |
| Address | Moline, IL 61265 |
| Receiving water | SYLVAN SLOUGH/MISSISSIPPI RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Sugar Creek-Mississippi River (HUC 070801010406) |
| Program components on file | Biosolids, POTW, Pretreatment |
| 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
- 34Pollutants on file
- 34Under a numeric limit
- 15With 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 |
|---|---|---|---|---|---|
| Coliform, fecal general | 2 | 43 | 36 | May 31, 2025 | 99,999% over the limit |
| pH | 4 | 10 | 6 | June 30, 2010 | |
| Chlorine, total residual | 7 | 13 | 4 | July 31, 2015 | 32% over the limit |
| BOD, 5-day, 20 deg. C | 5 | 6 | 1 | August 31, 2007 | 133% over the limit |
| Chromium, hexavalent [as Cr] | 4 | 18 | 0 | ||
| Copper, total [as Cu] | 4 | 18 | 0 | ||
| Zinc, total [as Zn] | 4 | 18 | 0 | ||
| Solids, total suspended | 9 | 9 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 8 | 0 | ||
| Nitrogen, ammonia total [as N] | 3 | 5 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 4 | 0 | ||
| Phosphorus, total [as P] | 2 | 2 | 0 | ||
| Flow, total | 2 | 2 | 0 | ||
| Mercury, total [as Hg] | 4 | 1 | 0 | ||
| Nitrogen, total [as N] | 1 | 1 | 0 | ||
| Oil & Grease | 4 | 0 | 0 | ||
| Cyanide, total [as CN] | 4 | 0 | 0 | ||
| Cyanide, free [amenable to chlorination] | 4 | 0 | 0 | ||
| Fluoride, total [as F] | 4 | 0 | 0 | ||
| Arsenic, total [as As] | 4 | 0 | 0 | ||
| Barium, total [as Ba] | 4 | 0 | 0 | ||
| Beryllium, total [as Be] | 4 | 0 | 0 | ||
| Cadmium, total [as Cd] | 4 | 0 | 0 | ||
| Chromium, total [as Cr] | 4 | 0 | 0 | ||
| Iron, total [as Fe] | 4 | 0 | 0 | ||
| Iron, dissolved [as Fe] | 4 | 0 | 0 | ||
| Lead, total [as Pb] | 4 | 0 | 0 | ||
| Manganese, total [as Mn] | 4 | 0 | 0 | ||
| Thallium, total [as Tl] | 4 | 0 | 0 | ||
| Nickel, total [as Ni] | 4 | 0 | 0 | ||
| Silver, total [as Ag] | 4 | 0 | 0 | ||
| Antimony, total [as Sb] | 4 | 0 | 0 | ||
| Selenium, total [as Se] | 4 | 0 | 0 | ||
| Phenolics, total recoverable | 4 | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 29, 2026 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| April 7, 2026 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| April 7, 2026 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| July 18, 2025 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | 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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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.