Clean Water Act discharge permit · NPDES IL0031844
DCDPW-WOODRIDGE-GREEN VALLEY STP, Woodridge, IL: NPDES IL0031844 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 37Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
DCDPW-WOODRIDGE-GREEN VALLEY STP, held by DUPAGE COUNY DEPARTMENT OF PUBLIC WORKS, holds NPDES permit IL0031844, which discharges to E Brnch Of Dupage Rvr & Crabtree Crk. EPA’s file records it issued August 20, 2015 and expiring August 31, 2020. 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 | DCDPW-WOODRIDGE-GREEN VALLEY STP |
|---|---|
| Permittee as filed | DUPAGE COUNY DEPARTMENT OF PUBLIC WORKS |
| NPDES ID | IL0031844 |
| 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 20, 2015 |
| Expiration date | August 31, 2020 |
| Address | Woodridge, IL 60517 |
| Receiving water | E BRNCH OF DUPAGE RVR & CRABTREE CRK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | East Branch Du Page River (HUC 071200040804) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 38Pollutants on file
- 37Under a numeric limit
- 9With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 16 | 54 | 54 | May 31, 2025 | 173% over the limit |
| Coliform, fecal general | 2 | 51 | 51 | July 31, 2026 | 99,999% over the limit |
| Solids, total suspended | 7 | 44 | 44 | September 30, 2022 | 178% over the limit |
| BOD, 5-day, 20 deg. C | 3 | 22 | 22 | September 30, 2022 | 99,999% over the limit |
| Chlorine, total residual | 3 | 13 | 10 | July 31, 2011 | 225% over the limit |
| pH | 4 | 5 | 1 | May 31, 2019 | |
| Phosphorus, dissolved | 0 | 64 | 0 | ||
| Nitrogen, total [as N] | 2 | 2 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 1 | 0 | ||
| Oxygen, dissolved [DO] | 6 | 0 | 0 | ||
| Phosphorus, total [as P] | 4 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 0 | 0 | ||
| Oil & Grease | 2 | 0 | 0 | ||
| Cyanide, weak acid, dissociable | 2 | 0 | 0 | ||
| Cyanide, total [as CN] | 2 | 0 | 0 | ||
| Fluoride, total [as F] | 2 | 0 | 0 | ||
| Arsenic, total [as As] | 2 | 0 | 0 | ||
| Barium, total [as Ba] | 2 | 0 | 0 | ||
| Cadmium, total [as Cd] | 2 | 0 | 0 | ||
| Chromium, hexavalent [as Cr] | 2 | 0 | 0 | ||
| Chromium, total [as Cr] | 2 | 0 | 0 | ||
| Copper, total [as Cu] | 2 | 0 | 0 | ||
| Iron, total [as Fe] | 2 | 0 | 0 | ||
| Iron, dissolved [as Fe] | 2 | 0 | 0 | ||
| Lead, total [as Pb] | 2 | 0 | 0 | ||
| Manganese, total [as Mn] | 2 | 0 | 0 | ||
| Nickel, total [as Ni] | 2 | 0 | 0 | ||
| Silver, total [as Ag] | 2 | 0 | 0 | ||
| Zinc, total [as Zn] | 2 | 0 | 0 | ||
| Selenium, total [as Se] | 2 | 0 | 0 | ||
| Phenolics, total recoverable | 2 | 0 | 0 | ||
| Mercury, total [as Hg] | 2 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 0 | 0 | ||
| Alkalinity, total [as CaCO3] | 1 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 0 | 0 | ||
| Chloride [as Cl] | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0031844.
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 September 14, 2026.