Clean Water Act discharge permit · NPDES IL0020559
NEW LENOX STP #1, VILLAGE OF, New Lenox, IL: NPDES IL0020559 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 33Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
NEW LENOX STP #1, VILLAGE OF, held by NEW LENOX, VILLAGE OF, holds NPDES permit IL0020559, which discharges to Hickory Creek To Des Plaines River. EPA’s file records it issued September 28, 2011 and expiring October 31, 2016. 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 | NEW LENOX STP #1, VILLAGE OF |
|---|---|
| Permittee as filed | NEW LENOX, VILLAGE OF |
| NPDES ID | IL0020559 |
| 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 28, 2011 |
| Expiration date | October 31, 2016 |
| Address | New Lenox, IL 60451 |
| Receiving water | HICKORY CREEK TO DES PLAINES RIVER |
| Subwatershed | Hickory Creek (HUC 071200040603) |
| 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
- 39Pollutants on file
- 33Under a numeric limit
- 19With a violation of any kind
- 9With 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 | 59 | 32 | April 30, 2026 | 99,999% over the limit |
| Solids, total suspended | 6 | 128 | 29 | May 31, 2025 | 133% over the limit |
| Nitrogen, ammonia total [as N] | 18 | 75 | 10 | April 30, 2025 | 3,900% over the limit |
| Chlorine, total residual | 3 | 51 | 10 | May 31, 2014 | 1,279,900% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 45 | 9 | April 30, 2025 | 183% over the limit |
| Oxygen, dissolved [DO] | 5 | 23 | 7 | July 31, 2025 | 10% over the limit |
| Solids, total dissolved | 0 | 12 | 6 | February 28, 2011 | 50% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 91 | 3 | March 31, 2025 | 25% over the limit |
| Phosphorus, total [as P] | 2 | 5 | 1 | April 30, 2014 | 13% over the limit |
| pH | 4 | 72 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 68 | 0 | ||
| Flow, total | 1 | 15 | 0 | ||
| Zinc, total [as Zn] | 1 | 4 | 0 | ||
| Nitrogen, total [as N] | 1 | 2 | 0 | ||
| Oil & Grease | 0 | 1 | 0 | ||
| Fluoride, total [as F] | 0 | 1 | 0 | ||
| Copper, total [as Cu] | 0 | 1 | 0 | ||
| Phenolics, total recoverable | 0 | 1 | 0 | ||
| Mercury, total [as Hg] | 0 | 1 | 0 | ||
| Arsenic, dry weight | 3 | 0 | 0 | ||
| Selenium, dry weight | 3 | 0 | 0 | ||
| Copper, dry weight | 3 | 0 | 0 | ||
| Cadmium, dry weight | 3 | 0 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 0 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 0 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 0 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 0 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 2 | 0 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 0 | 0 | ||
| Annual amt of sludge incinerated | 1 | 0 | 0 | ||
| Annual sludge production, total | 1 | 0 | 0 | ||
| Annual amount of sludge land applied | 1 | 0 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 0 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 0 | 0 | ||
| Annual amt sludge transported interstate | 1 | 0 | 0 | ||
| Pollutant table from 503.13 | 1 | 0 | 0 | ||
| Level of pathogen requirements achieved | 1 | 0 | 0 | ||
| Description of pathogen option used | 1 | 0 | 0 | ||
| Vector attraction reduction alternative used | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 30, 2026 | Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| August 19, 2025 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| April 2, 2025 | Wet-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.