Clean Water Act discharge permit · NPDES IL0020575
PRINCETON STP, Princeton, IL: NPDES IL0020575 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 35Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
PRINCETON STP, held by PRINCETON, CITY OF, holds NPDES permit IL0020575, which discharges to Skin Creek. EPA’s file records it issued May 21, 2015 and expiring May 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 | PRINCETON STP |
|---|---|
| Permittee as filed | PRINCETON, CITY OF |
| NPDES ID | IL0020575 |
| 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 21, 2015 |
| Expiration date | May 31, 2020 |
| Address | Princeton, IL 61356 |
| Receiving water | SKIN CREEK |
| Subwatershed | Epperson Run-Big Bureau Creek (HUC 071300010505) |
| 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
- 39Pollutants on file
- 35Under a numeric limit
- 16With a violation of any kind
- 10With 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] | 8 | 66 | 58 | February 28, 2014 | 2,623% over the limit |
| Coliform, fecal general | 2 | 31 | 29 | March 31, 2014 | 307% over the limit |
| Nitrogen, ammonia total [as N] | 17 | 37 | 18 | April 30, 2021 | 428% over the limit |
| Solids, total suspended | 8 | 19 | 12 | April 30, 2013 | 447% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 6 | 2 | July 31, 2008 | 50% over the limit |
| Chlorine, total residual | 2 | 8 | 1 | June 30, 2015 | 17,900% over the limit |
| Arsenic, dry weight | 0 | 1 | 1 | June 30, 2005 | 37% over the limit |
| Copper, dry weight | 0 | 1 | 1 | June 30, 2005 | 120% over the limit |
| Zinc, sludge, total, dry weight [as Zn] | 0 | 1 | 1 | June 30, 2005 | 25% over the limit |
| Lead, sludge, total, dry weight [as Pb] | 0 | 1 | 1 | June 30, 2005 | 27% over the limit |
| Phosphorus, total [as P] | 4 | 24 | 0 | ||
| pH | 4 | 8 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 4 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 4 | 0 | ||
| Flow, total | 2 | 3 | 0 | ||
| Oxygen, dissolved [DO] | 7 | 2 | 0 | ||
| Oil & Grease | 4 | 0 | 0 | ||
| Cyanide, weak acid, dissociable | 4 | 0 | 0 | ||
| Cyanide, total [as CN] | 4 | 0 | 0 | ||
| Fluoride, total [as F] | 4 | 0 | 0 | ||
| Arsenic, total [as As] | 4 | 0 | 0 | ||
| Barium, total [as Ba] | 4 | 0 | 0 | ||
| Beryllium, total [as Be] | 4 | 0 | 0 | ||
| Cadmium, total [as Cd] | 4 | 0 | 0 | ||
| Chromium, hexavalent [as Cr] | 4 | 0 | 0 | ||
| Chromium, total [as Cr] | 4 | 0 | 0 | ||
| Iron, total [as Fe] | 4 | 0 | 0 | ||
| Iron, dissolved [as Fe] | 4 | 0 | 0 | ||
| Lead, total [as Pb] | 4 | 0 | 0 | ||
| Manganese, total [as Mn] | 4 | 0 | 0 | ||
| Thallium, total [as Tl] | 4 | 0 | 0 | ||
| Nickel, total [as Ni] | 4 | 0 | 0 | ||
| Silver, total [as Ag] | 4 | 0 | 0 | ||
| Zinc, total [as Zn] | 4 | 0 | 0 | ||
| Antimony, total [as Sb] | 4 | 0 | 0 | ||
| Selenium, total [as Se] | 4 | 0 | 0 | ||
| Phenolics, total recoverable | 4 | 0 | 0 | ||
| Mercury, total [as Hg] | 4 | 0 | 0 | ||
| Nitrogen, total [as N] | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0020575.
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.