Clean Water Act discharge permit · NPDES IL0022501
MUNDELEIN STP, VILLAGE OF, Libertyville, IL: NPDES IL0022501 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 38Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
MUNDELEIN STP, VILLAGE OF, held by MUNDELEIN, VILLAGE OF, holds NPDES permit IL0022501, which discharges to Des Plaines River. EPA’s file records it issued August 18, 2015 and expiring August 31, 2020. 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 | MUNDELEIN STP, VILLAGE OF |
|---|---|
| Permittee as filed | MUNDELEIN, VILLAGE OF |
| NPDES ID | IL0022501 |
| 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 | August 18, 2015 |
| Expiration date | August 31, 2020 |
| Address | Libertyville, IL 60048 |
| Receiving water | DES PLAINES RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | McDonald Creek-Des Plaines River (HUC 071200040503) |
| Program components on file | Biosolids, POTW |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 41Pollutants on file
- 38Under a numeric limit
- 38With 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 |
|---|---|---|---|---|---|
| Coliform, fecal general | 2 | 14 | 11 | July 31, 2018 | 99,999% over the limit |
| Solids, total suspended | 8 | 22 | 9 | July 31, 2022 | 1,133% over the limit |
| Nitrogen, ammonia total [as N] | 17 | 23 | 3 | July 31, 2002 | 107% over the limit |
| Chlorine, total residual | 3 | 6 | 3 | August 31, 2002 | 220% over the limit |
| Oxygen, dissolved [DO] | 7 | 7 | 1 | October 31, 2015 | 5% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 4 | 1 | April 30, 2012 | 53% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 10 | 0 | ||
| Chromium, total [as Cr] | 2 | 10 | 0 | ||
| Cadmium, total [as Cd] | 2 | 9 | 0 | ||
| Chromium, hexavalent [as Cr] | 2 | 9 | 0 | ||
| Iron, dissolved [as Fe] | 2 | 9 | 0 | ||
| pH | 4 | 8 | 0 | ||
| Oil & Grease | 2 | 8 | 0 | ||
| Cyanide, total [as CN] | 2 | 8 | 0 | ||
| Arsenic, total [as As] | 2 | 8 | 0 | ||
| Lead, total [as Pb] | 2 | 8 | 0 | ||
| Nickel, total [as Ni] | 2 | 8 | 0 | ||
| Silver, total [as Ag] | 2 | 8 | 0 | ||
| Selenium, total [as Se] | 2 | 8 | 0 | ||
| Manganese, total [as Mn] | 2 | 7 | 0 | ||
| Phenolics, total recoverable | 2 | 7 | 0 | ||
| Cyanide, free [amenable to chlorination] | 0 | 7 | 0 | ||
| Phosphorus, total [as P] | 6 | 6 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 6 | 0 | ||
| Mercury, total [as Hg] | 2 | 6 | 0 | ||
| Iron, total [as Fe] | 2 | 5 | 0 | ||
| Copper, total [as Cu] | 2 | 4 | 0 | ||
| Zinc, total [as Zn] | 2 | 3 | 0 | ||
| Fluoride, total [as F] | 2 | 2 | 0 | ||
| Barium, total [as Ba] | 2 | 2 | 0 | ||
| Flow, total | 2 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 2 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 1 | 0 | ||
| Specific conductance | 1 | 1 | 0 | ||
| Alkalinity, total [as CaCO3] | 1 | 1 | 0 | ||
| Nitrogen, total [as N] | 1 | 1 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 1 | 0 | ||
| Peracetic Acid | 0 | 1 | 0 | ||
| Cyanide, weak acid, dissociable | 2 | 0 | 0 | ||
| Phosphorus, dissolved | 1 | 0 | 0 | ||
| Nitrogen, Kjeldahl 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 16, 2026 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| March 19, 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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, IL0022501.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 IL0022501 there.
Nearby on the register
- Discharge permits in Libertyville
- Every permit record in Libertyville, A to Z
- Discharge permits in Illinois
- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.