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
- 0Inspections on file
- 0Formal enforcement actions
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
- 6Single-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 |
| September 16, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| February 26, 2025 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | 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 |
Inspections
EPA’s inspection file holds no inspection for NPDES IL0020109.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES IL0020109.
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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How we handle your data → Privacy
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 IL0020109 there.
WAUCONDA WWTF, Wauconda, Illinois: Individual permit IL0020109, held by WAUCONDA, VILLAGE OF; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued September 18, 2017, term to September 30, 2022; discharges to FIDDLE CREEK.
30 of the 38 pollutants listed for NPDES IL0020109 have no violation or effluent exceedance.
- Copper, total [as Cu]: 1 limit, 10 violations of any kind, 10 effluent exceedances, latest June 30, 2006, largest 102% over the limit.
- Coliform, fecal general: 2 limits, 9 violations of any kind, 9 effluent exceedances, latest February 28, 2026, largest 688% over the limit.
- Nitrogen, ammonia total [as N]: 17 limits, 5 violations of any kind, 5 effluent exceedances, latest April 30, 2006, largest 124% over the limit.
- Chlorine, total residual: 2 limits, 2 violations of any kind, 2 effluent exceedances, latest March 31, 2007, largest 700% over the limit.
- Solids, total suspended: 8 limits, 2 violations of any kind, 1 effluent exceedance, latest May 31, 2020, largest 17% over the limit.
- Flow, in conduit or thru treatment plant: 4 limits, 2 violations of any kind.
- BOD, 5-day, 20 deg. C: 4 limits, 1 violation of any kind.
- Nitrogen, total [as N]: 2 limits, 1 violation of any kind.
- Oxygen, dissolved [DO]: 8 limits.
- Phosphorus, total [as P]: 5 limits.
- pH: 4 limits.
- BOD, carbonaceous [5 day, 20 C]: 4 limits.
- Flow, total: 2 limits.
- Temperature, water deg. fahrenheit: 1 limit.
- Alkalinity, total [as CaCO3]: 1 limit.
- Oil & Grease: 1 limit.
- Nitrogen, Kjeldahl, total [as N]: 1 limit.
- Nitrite + Nitrate total [as N]: 1 limit.
- Phosphorus, dissolved: 1 limit.
- Cyanide, total [as CN]: 1 limit.
- Cyanide, free [amenable to chlorination]: 1 limit.
- Chloride [as Cl]: 1 limit.
- Fluoride, total [as F]: 1 limit.
- Arsenic, total [as As]: 1 limit.
- Barium, total [as Ba]: 1 limit.
- Cadmium, total [as Cd]: 1 limit.
- Chromium, hexavalent [as Cr]: 1 limit.
- Chromium, total [as Cr]: 1 limit.
- Iron, total [as Fe]: 1 limit.
- Iron, dissolved [as Fe]: 1 limit.
- Lead, total [as Pb]: 1 limit.
- Manganese, total [as Mn]: 1 limit.
- Nickel, total [as Ni]: 1 limit.
- Silver, total [as Ag]: 1 limit.
- Zinc, total [as Zn]: 1 limit.
- Selenium, total [as Se]: 1 limit.
- Phenolics, total recoverable: 1 limit.
- Mercury, total [as Hg]: 1 limit.
- May 20, 2026: Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment (ST6).
- September 16, 2025: Permit Violations - Violation Specified in Comment (ST6).
- February 26, 2025: PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] (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).
Illinois holds 544 Publicly owned treatment works coverages of this permit type in EPA’s file; 276 were issued before IL0020109.
Coverages issued nearest IL0020109
- 2017-09-13: BUDA STP, VILLAGE OF, Buda: IL0072494, held by BUDA, VILLAGE OF
- 2017-09-14: PAXTON STP, CITY OF, Paxton: IL0023205, held by PAXTON, CITY OF
- 2017-09-14: CHRISMAN STP, CITY OF, Chrisman: IL0028126, held by CHRISMAN, CITY OF
- 2017-09-14: FILLMORE STP, VILLAGE OF, Fillmore: IL0050156, held by FILLMORE, VILLAGE OF
- 2017-09-15: MOUNT OLIVE NORTH STP, Mount Olive: IL0036528, held by MT OLIVE, CITY OF
- 2017-09-20: GEORGETOWN STP, CITY OF, Georgetown: IL0022322, held by GEORGETOWN, CITY OF
- 2017-09-20: POPLAR GROVE - NORTH WWTP, VILLAGE OF, Poplar Grove: IL0023451, held by POPLAR GROVE, VILLAGE OF
- 2017-09-20: PERKS STP, COUNTY OF PULASKI, Perks: IL0076911, held by PULASKI, COUNTY OF
- 2017-09-22: TRENTON STP, Trenton: IL0026701, held by TRENTON, CITY OF
- 2017-09-22: ATHENS STP, CITY OF, Athens: IL0041203, held by ATHENS, CITY OF
WAUCONDA WWTF among its neighbors
29 discharge permits are in the Cary Creek-Fox River subwatershed (HUC 071200061105); IL0020109 is one. Its county: 202, 17 major; IL0020109 is major permit.
Other permits in the Cary Creek-Fox River subwatershed (HUC 071200061105)
- 4418 BUHL, Crystal Lake: ILR10ZCTE, minor, term to 2028-08-31
- 551 CONGRESS PARKWAY, Crystal Lake: ILR10ZGLU, minor, term to 2028-08-31
- CARY SD26 TRANSPORTATION FACILITY, Cary: ILR10ZG45, minor, term to 2028-08-31
- CARY STP, VILLAGE OF, Cary: ILL020516, minor, term to 2025-12-31
- CONGRESS PKWY AND EXCHANGE DRIVE MULTI-FAMILY APARTMENTS, Crystal Lake: ILR10ZFMN, minor, term to 2028-08-31
- FOX RIVER GROVE, VILLAGE OF, Fox River Grove: ILG870175, minor, term to 2021-10-31
- KILLARNEY WATER SYSTEM, Cary: ILG640285, minor, term to 2022-05-31
- MCHENRY COUNTY JOINT FIRING RANGE, Cary: ILR10ZCPO, minor, term to 2028-08-31
- NVA TRUCKING FACILITY EXPANSION, Crystal Lake: ILR10ZEX4, minor, term to 2028-08-31
- OAKBROOK ESTATES EXPANSION, Crystal Lake: ILR10ZH4G, minor, term to 2028-08-31
Nearby on the register
- Discharge permits in Wauconda
- Every permit record in Wauconda, A to Z
- Discharge permits in Illinois
- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.
What this page shows
This public-records page covers the Clean Water Act discharge permit NPDES IL0020109 for the WAUCONDA WWTF in Wauconda, IL, which discharges to Fiddle Creek within the Cary Creek-Fox River watershed (HUC 071200061105). The permit's status is listed as administratively continued, with 38 for the discharger class, 5 pollutants under a numeric limit, and 5 pollutants with an effluent exceedance.