Clean Water Act discharge permit · NPDES IL0045993
ILLINOIS - AMERICAN WATER COMPANY- DERBY MEADOWS WRF, Lockport, IL: NPDES IL0045993 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
ILLINOIS - AMERICAN WATER COMPANY- DERBY MEADOWS WRF, held by ILLINOIS-AMERICAN WATER COMPANY, holds NPDES permit IL0045993, which discharges to Long Run Creek. EPA’s file records it issued September 2, 2016 and expiring August 31, 2021. 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 | ILLINOIS - AMERICAN WATER COMPANY- DERBY MEADOWS WRF |
|---|---|
| Permittee as filed | ILLINOIS-AMERICAN WATER COMPANY |
| NPDES ID | IL0045993 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Biosolids |
| Issued | September 2, 2016 |
| Expiration date | August 31, 2021 |
| Address | Lockport, IL 60441 |
| Receiving water | LONG RUN CREEK |
| Subwatershed | Long Run (HUC 071200040703) |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler ILR000027508 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 32Pollutants on file
- 12Under a numeric limit
- 32With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 18 | 24 | 20 | April 30, 2026 | 436% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 15 | 10 | May 31, 2019 | 460% over the limit |
| Solids, total suspended | 5 | 11 | 6 | February 28, 2023 | 20% over the limit |
| Coliform, fecal general | 2 | 3 | 3 | May 31, 2002 | 150% over the limit |
| Chlorine, total residual | 2 | 8 | 1 | August 31, 2000 | 500% over the limit |
| Oxygen, dissolved [DO] | 5 | 11 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 4 | 0 | ||
| Coliform, fecal - % samples exceeding limit | 1 | 4 | 0 | ||
| pH | 2 | 2 | 0 | ||
| Nitrogen, total [as N] | 1 | 2 | 0 | ||
| Phosphorus, total [as P] | 1 | 2 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 1 | 0 | ||
| Oil & Grease | 0 | 1 | 0 | ||
| Cyanide, weak acid, dissociable | 0 | 1 | 0 | ||
| Cyanide, total [as CN] | 0 | 1 | 0 | ||
| Fluoride, total [as F] | 0 | 1 | 0 | ||
| Arsenic, total [as As] | 0 | 1 | 0 | ||
| Barium, total [as Ba] | 0 | 1 | 0 | ||
| Cadmium, total [as Cd] | 0 | 1 | 0 | ||
| Chromium, hexavalent [as Cr] | 0 | 1 | 0 | ||
| Chromium, total [as Cr] | 0 | 1 | 0 | ||
| Copper, total [as Cu] | 0 | 1 | 0 | ||
| Iron, total [as Fe] | 0 | 1 | 0 | ||
| Iron, dissolved [as Fe] | 0 | 1 | 0 | ||
| Lead, total [as Pb] | 0 | 1 | 0 | ||
| Manganese, total [as Mn] | 0 | 1 | 0 | ||
| Nickel, total [as Ni] | 0 | 1 | 0 | ||
| Silver, total [as Ag] | 0 | 1 | 0 | ||
| Zinc, total [as Zn] | 0 | 1 | 0 | ||
| Selenium, total [as Se] | 0 | 1 | 0 | ||
| Phenolics, total recoverable | 0 | 1 | 0 | ||
| Mercury, total [as Hg] | 0 | 1 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 11, 2025 | 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.
Watch this permit
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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 IL0045993 there.
Nearby on the register
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- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.