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Clean Water Act discharge permit · NPDES IL0024465

ILLINOIS AMERICAN WATER - JERSEYVILLE STP, Jerseyville, IL: NPDES IL0024465 discharge permit, effluent exceedances, inspections, penalties

ILLINOIS AMERICAN WATER - JERSEYVILLE STP, held by JERSEYVILLE, CITY OF, holds NPDES permit IL0024465, which discharges to Sandy Creek. EPA’s file records it issued September 12, 2014 and expiring August 31, 2019. 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 filedILLINOIS AMERICAN WATER - JERSEYVILLE STP
Permittee as filedJERSEYVILLE, CITY OF
NPDES IDIL0024465
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
IssuedSeptember 12, 2014
Expiration dateAugust 31, 2019
AddressJerseyville, IL 62052
Receiving waterSANDY CREEK
Receiving water impaired303(D) Listed
SubwatershedSandy Creek-Otter Creek (HUC 071300110901)

Cited to the EPA ICIS-NPDES permit file (ECHO 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
Nitrogen, ammonia total [as N]481717September 30, 2025107% over the limit
Phosphorus, total [as P]6337February 28, 2025194% over the limit
Solids, total suspended2321December 31, 2015105% over the limit
BOD, carbonaceous [5 day, 20 C]1611February 28, 20149% over the limit
BOD, 5-day, 20 deg. C710
Flow310
Chlorine, total residual210
Oxygen, dissolved [DO]2000
pH800
Flow, in conduit or thru treatment plant800
Nitrogen, total [as N]400
Oil & Grease200
Cyanide, weak acid, dissociable200
Cyanide, total [as CN]200
Fluoride, total [as F]200
Arsenic, total [as As]200
Barium, total [as Ba]200
Cadmium, total [as Cd]200
Chromium, hexavalent [as Cr]200
Chromium, total [as Cr]200
Copper, total [as Cu]200
Iron, total [as Fe]200
Iron, dissolved [as Fe]200
Lead, total [as Pb]200
Manganese, total [as Mn]200
Nickel, total [as Ni]200
Silver, total [as Ag]200
Zinc, total [as Zn]200
Selenium, total [as Se]200
Phenolics, total recoverable200
Mercury, total [as Hg]200
Coliform, fecal general200

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

DateWhat EPA recordedAgency
July 25, 2026Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
May 5, 2026Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangermentST6
April 27, 2026Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
April 27, 2026Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
April 27, 2026Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
April 27, 2026Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
April 27, 2026Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
April 27, 2026Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangermentST6
March 25, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
March 23, 2026Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environmentST6
July 27, 2025Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environmentST6
July 27, 2025Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environmentST6
July 27, 2025Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environmentST6
July 27, 2025Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangermentST6
July 22, 2025Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangermentST6
July 21, 2025Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environmentST6
July 21, 2025Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environmentST6
May 2, 2025Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangermentST6
April 20, 2025Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangermentST6
April 5, 2025Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangermentST6
April 4, 2025Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environmentST6
April 4, 2025Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environmentST6

Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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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How we handle your data → Privacy

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 IL0024465 there.

Nearby on the register

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