Clean Water Act discharge permit · NPDES IL0029530
LIBERTYVILLE STP, VILLAGE OF, Libertyville, IL: NPDES IL0029530 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 30Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
LIBERTYVILLE STP, VILLAGE OF, held by LIBERTYVILLE, VILLAGE OF, holds NPDES permit IL0029530, which discharges to Des Plaines River. EPA’s file records it issued April 20, 2007 and expiring May 31, 2012. 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 | LIBERTYVILLE STP, VILLAGE OF |
|---|---|
| Permittee as filed | LIBERTYVILLE, VILLAGE OF |
| NPDES ID | IL0029530 |
| 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 | April 20, 2007 |
| Expiration date | May 31, 2012 |
| Address | Libertyville, IL 60048 |
| Receiving water | DES PLAINES RIVER |
| Subwatershed | McDonald Creek-Des Plaines River (HUC 071200040503) |
| Program components on file | Biosolids, POTW, Pretreatment |
| 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
- 37Pollutants on file
- 30Under a numeric limit
- 36With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 50 | 16 | 16 | July 31, 2020 | 500% over the limit |
| Solids, total suspended | 6 | 6 | 5 | February 28, 2018 | 46% over the limit |
| Coliform, fecal general | 2 | 6 | 5 | September 30, 2019 | 99,999% over the limit |
| Oxygen, dissolved [DO] | 1 | 5 | 5 | July 31, 2018 | 23% over the limit |
| Chlorine, total residual | 2 | 4 | 3 | June 30, 2018 | 1,600% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 3 | 2 | July 31, 2022 | 62% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 2 | 2 | April 30, 2015 | 22% over the limit |
| Oil & Grease | 1 | 5 | 0 | ||
| pH | 4 | 4 | 0 | ||
| Cyanide, weak acid, dissociable | 1 | 4 | 0 | ||
| Cyanide, total [as CN] | 1 | 4 | 0 | ||
| Barium, total [as Ba] | 1 | 4 | 0 | ||
| Cadmium, total [as Cd] | 1 | 4 | 0 | ||
| Chromium, hexavalent [as Cr] | 1 | 4 | 0 | ||
| Chromium, total [as Cr] | 1 | 4 | 0 | ||
| Silver, total [as Ag] | 1 | 4 | 0 | ||
| Selenium, total [as Se] | 1 | 4 | 0 | ||
| Fluoride, total [as F] | 1 | 3 | 0 | ||
| Arsenic, total [as As] | 1 | 3 | 0 | ||
| Copper, total [as Cu] | 1 | 3 | 0 | ||
| Iron, total [as Fe] | 1 | 3 | 0 | ||
| Iron, dissolved [as Fe] | 1 | 3 | 0 | ||
| Lead, total [as Pb] | 1 | 3 | 0 | ||
| Manganese, total [as Mn] | 1 | 3 | 0 | ||
| Nickel, total [as Ni] | 1 | 3 | 0 | ||
| Zinc, total [as Zn] | 1 | 3 | 0 | ||
| Phenolics, total recoverable | 1 | 3 | 0 | ||
| Mercury, total [as Hg] | 1 | 3 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 2 | 0 | ||
| Phosphorus, total [as P] | 0 | 2 | 0 | ||
| Conductivity | 0 | 1 | 0 | ||
| Alkalinity, total [as CaCO3] | 0 | 1 | 0 | ||
| Nitrogen, total [as N] | 0 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 1 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 1 | 0 | ||
| Phosphorus, dissolved | 0 | 1 | 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 |
|---|---|---|
| December 30, 2024 | Dry-weather SSO 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 October 14, 2026.