Velarion Records

Clean Water Act discharge permit · NPDES IL0034274

WOOD DALE SOUTH STP, Wood Dale, IL: NPDES IL0034274 discharge permit, effluent exceedances, inspections, penalties

WOOD DALE SOUTH STP, held by WOOD DALE, CITY OF, holds NPDES permit IL0034274, which discharges to Salt Creek. EPA’s file records it issued December 28, 2016 and expiring December 31, 2021. 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 filedWOOD DALE SOUTH STP
Permittee as filedWOOD DALE, CITY OF
NPDES IDIL0034274
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedDecember 28, 2016
Expiration dateDecember 31, 2021
AddressWood Dale, IL 60191
Receiving waterSALT CREEK
Receiving water impaired303(D) Listed
SubwatershedMiddle Salt Creek (HUC 071200040402)
Program components on fileBiosolids, POTW, Pretreatment
SIC4952 – 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

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Coliform, fecal general254July 31, 2023420% over the limit
Nitrogen, ammonia total [as N]17100
Chlorine, total residual330
pH420
Solids, total suspended810
Phosphorus, total [as P]510
BOD, 5-day, 20 deg. C410
Oil & Grease210
Nitrogen, total [as N]210
Cyanide, total [as CN]210
Cyanide, free [amenable to chlorination]210
Fluoride, total [as F]210
Arsenic, total [as As]210
Barium, total [as Ba]210
Beryllium, total [as Be]210
Cadmium, total [as Cd]210
Chromium, hexavalent [as Cr]210
Chromium, total [as Cr]210
Copper, total [as Cu]210
Iron, total [as Fe]210
Iron, dissolved [as Fe]210
Lead, total [as Pb]210
Manganese, total [as Mn]210
Thallium, total [as Tl]210
Nickel, total [as Ni]210
Silver, total [as Ag]210
Zinc, total [as Zn]210
Antimony, total [as Sb]210
Selenium, total [as Se]210
Phenolics, total recoverable210
Mercury, total [as Hg]210
Flow, total210
Oxygen, dissolved [DO]700
Flow, in conduit or thru treatment plant400
BOD, carbonaceous [5 day, 20 C]400
Temperature, water deg. fahrenheit100
Alkalinity, total [as CaCO3]100
Nitrogen, Kjeldahl, total [as N]100
Nitrite + Nitrate total [as N]100
Phosphorus, dissolved100
Chloride [as Cl]100

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0034274.

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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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES IL0034274 for WOOD DALE SOUTH STP in Wood Dale, IL, held by WOOD DALE, CITY OF, which discharges to Salt Creek. The permit is listed as administratively continued, a Major Discharger class, with 41 pollutants under a numeric limit and 1 pollutant with an effluent exceedance.

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