Clean Water Act discharge permit · NPDES IL0028282
CRYSTAL LAKE WWTP #2, CITY OF, Crystal Lake, IL: NPDES IL0028282 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 15Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
CRYSTAL LAKE WWTP #2, CITY OF, held by CITY OF CRYSTAL LAKE, holds NPDES permit IL0028282, which discharges to Crystal Ck Outlet(Illinois R Basin). 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 | CRYSTAL LAKE WWTP #2, CITY OF |
|---|---|
| Permittee as filed | CITY OF CRYSTAL LAKE |
| NPDES ID | IL0028282 |
| 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 | Crystal Lake, IL 60014 |
| Receiving water | CRYSTAL CK OUTLET(ILLINOIS R BASIN) |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Crystal Lake Outlet (HUC 071200061201) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 15Pollutants on file
- 15Under a numeric limit
- 7With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 6 | 4 | 4 | October 31, 2001 | 2,442% over the limit |
| Coliform, fecal general | 2 | 4 | 4 | May 31, 2018 | 11,200% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 23 | 3 | June 30, 2019 | 125% over the limit |
| Nitrogen, ammonia total [as N] | 50 | 14 | 2 | August 31, 2020 | 8% over the limit |
| Chlorine, total residual | 2 | 5 | 2 | July 31, 2026 | 20% over the limit |
| Barium, total [as Ba] | 4 | 2 | 2 | July 31, 2002 | 32% over the limit |
| pH | 4 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 5 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 0 | 0 | ||
| Phosphorus, total [as P] | 2 | 0 | 0 | ||
| Nitrogen, total [as N] | 1 | 0 | 0 | ||
| Cyanide, weak acid, dissociable | 1 | 0 | 0 | ||
| Di[2-ethylhexyl] phthalate [DEHP] | 1 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| September 23, 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 IL0028282 there.
Nearby on the register
- Discharge permits in Crystal Lake
- Every permit record in Crystal Lake, A to Z
- Discharge permits in Illinois
- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.