Clean Water Act discharge permit · NPDES IL0023027
KISHWAUKEE WATER RECLAMATION DISTRICT WWTP, Dekalb, IL: NPDES IL0023027 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 13Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
KISHWAUKEE WATER RECLAMATION DISTRICT WWTP, held by DEKALB SANITARY DISTRICT, holds NPDES permit IL0023027, which discharges to S Br Kishwaukee Rvr To Rock River. EPA’s file records it issued May 1, 2012 and expiring April 30, 2017. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | KISHWAUKEE WATER RECLAMATION DISTRICT WWTP |
|---|---|
| Permittee as filed | DEKALB SANITARY DISTRICT |
| NPDES ID | IL0023027 |
| 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 | May 1, 2012 |
| Expiration date | April 30, 2017 |
| Address | Dekalb, IL 60115 |
| Receiving water | S BR KISHWAUKEE RVR TO ROCK RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | City of De Kalab-South Branch Kishwaukee River (HUC 070900060603) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 36Pollutants on file
- 13Under a numeric limit
- 34With 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 |
|---|---|---|---|---|---|
| Copper, total [as Cu] | 0 | 69 | 67 | March 31, 2006 | 109% over the limit |
| Nitrogen, ammonia total [as N] | 16 | 70 | 48 | March 31, 2020 | 229% over the limit |
| Solids, total suspended | 6 | 28 | 20 | March 31, 2023 | 729% over the limit |
| Coliform, fecal general | 3 | 26 | 20 | May 31, 2019 | 99,999% over the limit |
| Chlorine, total residual | 3 | 17 | 11 | March 31, 2015 | 580% over the limit |
| Phosphorus, total [as P] | 1 | 6 | 2 | October 31, 2024 | 25% over the limit |
| Coliform, fecal - % samples exceeding limit | 1 | 3 | 2 | August 31, 2015 | 50% over the limit |
| Chromium, hexavalent [as Cr] | 0 | 3 | 1 | December 31, 2004 | 37% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 16 | 0 | ||
| Oxygen, dissolved [DO] | 5 | 6 | 0 | ||
| pH | 4 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 4 | 0 | ||
| Nitrogen, total [as N] | 1 | 2 | 0 | ||
| Oil & Grease | 0 | 2 | 0 | ||
| Cyanide, total [as CN] | 0 | 2 | 0 | ||
| Cyanide, free [amenable to chlorination] | 0 | 2 | 0 | ||
| Fluoride, total [as F] | 0 | 2 | 0 | ||
| Arsenic, total [as As] | 0 | 2 | 0 | ||
| Barium, total [as Ba] | 0 | 2 | 0 | ||
| Beryllium, total [as Be] | 0 | 2 | 0 | ||
| Cadmium, total [as Cd] | 0 | 2 | 0 | ||
| Chromium, total [as Cr] | 0 | 2 | 0 | ||
| Iron, total [as Fe] | 0 | 2 | 0 | ||
| Iron, dissolved [as Fe] | 0 | 2 | 0 | ||
| Lead, total [as Pb] | 0 | 2 | 0 | ||
| Manganese, total [as Mn] | 0 | 2 | 0 | ||
| Thallium, total [as Tl] | 0 | 2 | 0 | ||
| Nickel, total [as Ni] | 0 | 2 | 0 | ||
| Silver, total [as Ag] | 0 | 2 | 0 | ||
| Zinc, total [as Zn] | 0 | 2 | 0 | ||
| Antimony, total [as Sb] | 0 | 2 | 0 | ||
| Selenium, total [as Se] | 0 | 2 | 0 | ||
| Phenolics, total recoverable | 0 | 2 | 0 | ||
| Mercury, total [as Hg] | 0 | 2 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 0 | 0 | ||
| Flow, total | 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
- 11Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 26, 2026 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | ST6 |
| April 17, 2026 | Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | ST6 |
| April 17, 2026 | Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | ST6 |
| April 17, 2026 | Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | ST6 |
| April 4, 2026 | Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | ST6 |
| April 2, 2026 | Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | ST6 |
| April 2, 2026 | Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | ST6 |
| April 2, 2026 | Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | ST6 |
| April 2, 2026 | Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | ST6 |
| April 2, 2026 | Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | ST6 |
| April 2, 2026 | Wet-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 September 14, 2026.