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Clean Water Act discharge permit · NPDES IL0001325

D, S & C PITS: SOUTH OTTAWA DEVELOPMENT, Ottawa, IL: NPDES IL0001325 discharge permit, effluent exceedances, inspections, penalties

D, S & C PITS: SOUTH OTTAWA DEVELOPMENT, held by US SILICA COMPANY, holds NPDES permit IL0001325, which discharges to Unnamed Trib To Illinois River. EPA’s file records it issued February 17, 2016 and expiring February 28, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedD, S & C PITS: SOUTH OTTAWA DEVELOPMENT
Permittee as filedUS SILICA COMPANY
NPDES IDIL0001325
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedFebruary 17, 2016
Expiration dateFebruary 28, 2021
AddressOttawa, IL 61350
Receiving waterUNNAMED TRIB TO ILLINOIS RIVER
SubwatershedIllinois Canyon-Illinois River (HUC 071300010201)
Other EPA IDs (FRS)RCRA handler ILD155166952; ICIS-AIR source IL000099825AAA

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

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
Solids, total suspended87525July 31, 2019896% over the limit
Arsenic, total [as As]4564August 31, 200899,999% over the limit
pH8711May 31, 2015
Flow, in conduit or thru treatment plant4340
Temperature, water deg. fahrenheit2190
Offensive Conditions4130
Mercury, total [as Hg]420
Fluoride, total [as F]410
Alkalinity, total [as CaCO3]800
Acidity, total [as CaCO3]800
Iron, total [as Fe]800
Iron, dissolved [as Fe]800
Manganese, total [as Mn]800
Sulfate [as S]400
Oil & Grease400
Cyanide, weak acid, dissociable400
Cyanide, total [as CN]400
Hardness, total [as CaCO3]400
Chloride [as Cl]400
Barium, total [as Ba]400
Cadmium, total [as Cd]400
Chromium, hexavalent [as Cr]400
Chromium, total [as Cr]400
Copper, total [as Cu]400
Lead, total [as Pb]400
Nickel, total [as Ni]400
Silver, total [as Ag]400
Zinc, total [as Zn]400
Selenium, total [as Se]400
Phenolics, total recoverable400

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 IL0001325.

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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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID IL0001325 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES IL0001325 for D, S & C PITS: SOUTH OTTAWA DEVELOPMENT in Ottawa, IL, held by US SILICA COMPANY and discharging to UNNAMED TRIB TO ILLINOIS RIVER in the Illinois Canyon-Illinois River watershed (HUC 071300010201). The page lists a Minor Discharger class, 30 for discharger class, 3 pollutants under a numeric limit, and 3 pollutants with an effluent exceedance, with the permit shown as administratively continued.