Clean Water Act discharge permit · NPDES IL0022705
ST CHARLES EASTSIDE WWTF, CITY OF, Saint Charles, IL: NPDES IL0022705 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 41Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
ST CHARLES EASTSIDE WWTF, CITY OF, held by ST CHARLES. CITY OF, holds NPDES permit IL0022705, which discharges to Fox River. EPA’s file records it issued November 21, 2014 and expiring November 30, 2017. 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 | ST CHARLES EASTSIDE WWTF, CITY OF |
|---|---|
| Permittee as filed | ST CHARLES. CITY OF |
| NPDES ID | IL0022705 |
| 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 | November 21, 2014 |
| Expiration date | November 30, 2017 |
| Address | Saint Charles, IL 60174 |
| Receiving water | FOX RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Murray Slough (HUC 071200050303) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 41Pollutants on file
- 41Under a numeric limit
- 14With a violation of any kind
- 8With 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 | 4 | 22 | 17 | April 30, 2019 | 73,400% over the limit |
| Nitrogen, ammonia total [as N] | 12 | 20 | 14 | April 30, 2026 | 236% over the limit |
| Solids, total suspended | 8 | 12 | 7 | November 30, 2014 | 720% over the limit |
| Coliform, fecal - % samples exceeding limit | 2 | 8 | 6 | May 31, 2019 | 99,999% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 3 | 3 | January 31, 2005 | 115% over the limit |
| Chlorine, total residual | 2 | 45 | 2 | December 31, 2015 | 100% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 7 | 1 | January 31, 2005 | 40% over the limit |
| Phosphorus, total [as P] | 6 | 3 | 1 | May 31, 2022 | 1,591% over the limit |
| pH | 4 | 6 | 0 | ||
| Flow, total | 2 | 3 | 0 | ||
| Oxygen, dissolved [DO] | 6 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 2 | 0 | ||
| Cyanide, weak acid, dissociable | 2 | 2 | 0 | ||
| Copper, total [as Cu] | 2 | 1 | 0 | ||
| Oil & Grease | 2 | 0 | 0 | ||
| Cyanide, total [as CN] | 2 | 0 | 0 | ||
| Fluoride, total [as F] | 2 | 0 | 0 | ||
| Arsenic, total [as As] | 2 | 0 | 0 | ||
| Barium, total [as Ba] | 2 | 0 | 0 | ||
| Beryllium, total [as Be] | 2 | 0 | 0 | ||
| Cadmium, total [as Cd] | 2 | 0 | 0 | ||
| Chromium, hexavalent [as Cr] | 2 | 0 | 0 | ||
| Chromium, total [as Cr] | 2 | 0 | 0 | ||
| Iron, total [as Fe] | 2 | 0 | 0 | ||
| Iron, dissolved [as Fe] | 2 | 0 | 0 | ||
| Lead, total [as Pb] | 2 | 0 | 0 | ||
| Manganese, total [as Mn] | 2 | 0 | 0 | ||
| Thallium, total [as Tl] | 2 | 0 | 0 | ||
| Nickel, total [as Ni] | 2 | 0 | 0 | ||
| Silver, total [as Ag] | 2 | 0 | 0 | ||
| Zinc, total [as Zn] | 2 | 0 | 0 | ||
| Antimony, total [as Sb] | 2 | 0 | 0 | ||
| Selenium, total [as Se] | 2 | 0 | 0 | ||
| Phenolics, total recoverable | 2 | 0 | 0 | ||
| Mercury, total [as Hg] | 2 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 0 | 0 | ||
| Alkalinity, total [as CaCO3] | 1 | 0 | 0 | ||
| Nitrogen, total [as N] | 1 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 0 | 0 | ||
| Phosphorus, dissolved | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 26, 2026 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| February 12, 2026 | Dry-weather SSO, no 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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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.