Clean Water Act discharge permit · NPDES IL0020109
WAUCONDA WWTF, Wauconda, IL: NPDES IL0020109 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 38Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
WAUCONDA WWTF, held by WAUCONDA, VILLAGE OF, holds NPDES permit IL0020109, which discharges to Fiddle Creek. EPA’s file records it issued September 18, 2017 and expiring September 30, 2022. 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 | WAUCONDA WWTF |
|---|---|
| Permittee as filed | WAUCONDA, VILLAGE OF |
| NPDES ID | IL0020109 |
| 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 18, 2017 |
| Expiration date | September 30, 2022 |
| Address | Wauconda, IL 60084 |
| Receiving water | FIDDLE CREEK |
| Subwatershed | Cary Creek-Fox River (HUC 071200061105) |
| Other EPA IDs (FRS) | RCRA handler ILR000060012 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 38Pollutants on file
- 38Under a numeric limit
- 8With 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 |
|---|---|---|---|---|---|
| Copper, total [as Cu] | 1 | 10 | 10 | June 30, 2006 | 102% over the limit |
| Coliform, fecal general | 2 | 9 | 9 | February 28, 2026 | 688% over the limit |
| Nitrogen, ammonia total [as N] | 17 | 5 | 5 | April 30, 2006 | 124% over the limit |
| Chlorine, total residual | 2 | 2 | 2 | March 31, 2007 | 700% over the limit |
| Solids, total suspended | 8 | 2 | 1 | May 31, 2020 | 17% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 2 | 0 | ||
| BOD, 5-day, 20 deg. C | 4 | 1 | 0 | ||
| Nitrogen, total [as N] | 2 | 1 | 0 | ||
| Oxygen, dissolved [DO] | 8 | 0 | 0 | ||
| Phosphorus, total [as P] | 5 | 0 | 0 | ||
| pH | 4 | 0 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 0 | 0 | ||
| Flow, total | 2 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 0 | 0 | ||
| Alkalinity, total [as CaCO3] | 1 | 0 | 0 | ||
| Oil & Grease | 1 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 0 | 0 | ||
| Phosphorus, dissolved | 1 | 0 | 0 | ||
| Cyanide, total [as CN] | 1 | 0 | 0 | ||
| Cyanide, free [amenable to chlorination] | 1 | 0 | 0 | ||
| Chloride [as Cl] | 1 | 0 | 0 | ||
| Fluoride, total [as F] | 1 | 0 | 0 | ||
| Arsenic, total [as As] | 1 | 0 | 0 | ||
| Barium, total [as Ba] | 1 | 0 | 0 | ||
| Cadmium, total [as Cd] | 1 | 0 | 0 | ||
| Chromium, hexavalent [as Cr] | 1 | 0 | 0 | ||
| Chromium, total [as Cr] | 1 | 0 | 0 | ||
| Iron, total [as Fe] | 1 | 0 | 0 | ||
| Iron, dissolved [as Fe] | 1 | 0 | 0 | ||
| Lead, total [as Pb] | 1 | 0 | 0 | ||
| Manganese, total [as Mn] | 1 | 0 | 0 | ||
| Nickel, total [as Ni] | 1 | 0 | 0 | ||
| Silver, total [as Ag] | 1 | 0 | 0 | ||
| Zinc, total [as Zn] | 1 | 0 | 0 | ||
| Selenium, total [as Se] | 1 | 0 | 0 | ||
| Phenolics, total recoverable | 1 | 0 | 0 | ||
| Mercury, total [as Hg] | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 20, 2026 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | ST6 |
| February 20, 2025 | Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| November 16, 2024 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| October 1, 2024 | 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.