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Clean Water Act discharge permit · NPDES OH0098043

AURORA WESTERLY WWTP, Aurora, OH: NPDES OH0098043 discharge permit, effluent exceedances, inspections, penalties

AURORA WESTERLY WWTP, held by Aurora, City of, holds NPDES permit OH0098043, which discharges to Pond Brook. EPA’s file records it issued February 10, 2020 and expiring February 28, 2025. 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 filedAURORA WESTERLY WWTP
Permittee as filedAurora, City of
NPDES IDOH0098043
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
IssuedFebruary 10, 2020
Expiration dateFebruary 28, 2025
AddressAurora, OH 44202
Receiving waterPond Brook
Receiving water impaired303(D) Listed
SubwatershedPond Brook (HUC 041100020501)

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
Phosphorus, total [as P]124830July 31, 2026414% over the limit
Mercury, total low level63727March 31, 20186,207% over the limit
Copper, total recoverable103422June 30, 2025650% over the limit
Cyanide, free-water plus wastewaters01612November 30, 201835,862% over the limit
Nitrogen, ammonia total [as N]202711June 30, 2026205% over the limit
BOD, carbonaceous [5 day, 20 C]12164May 31, 20051,173% over the limit
Oil and grease, hexane extr method264January 31, 20228,590% over the limit
Oxygen, dissolved [DO]372June 30, 201886% over the limit
pH, minimum362April 30, 2024
Solids, total suspended12131April 30, 201447% over the limit
Toxicity [chronic], Ceriodaphnia dubia231August 31, 20197% over the limit
Toxicity [chronic], Pimephales promelas [Fathead Minnow]311September 30, 202541% over the limit
Nitrogen, Kjeldahl, total [as N]10120
Temperature, water deg. centigrade8120
Nitrite + Nitrate total [as N]8120
pH480
Flow, in conduit or thru treatment plant440
Solids, total dissolved- 180 deg. C440
pH, maximum340
Overflows240
E. coli, MTEC-MF820
Phosphate, ortho, dissolved [as P]420
Nickel, total recoverable420
Zinc, total recoverable420
Cadmium, total recoverable420
Lead, total recoverable420
Chromium, total recoverable420
Chromium, hexavalent dissolved [as Cr]420
Cyanide, free available420
Hardness, total [as CaCO3]220
Toxicity [acute], Ceriodaphnia dubia220
%Effect Static Renewal 48Hr Acute Ceriodaphnia dubia220
%Effect Static Renewal 96Hr Acute Pimephales promelas220
Biosolids weight indluding admixtures400
Sludge weight, dry400
Toxicity [acute], Pimephales promelas [Fathead Minnow]300
Nitrogen, ammonia in bottom deposits200
Phosphorous, total, in bottom deposits200
Potassium, in bottom deposits200
Bypass Volume200
Bypass valve200
Bypass of treatment200
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia200
%Effect Static Renewal 7Day Chronic Pimephales promelas200
Arsenic, dry weight100
Cadmium, in bottom deposits [dry wgt]100
Copper in bottom deposits [dry wgt]100
Lead, total dry weight [as Pb]100
Nickel, tot in bottom deposits [dry wgt]100
Zinc in bottom deposits [dry wgt]100
Selenium, dry weight100
Fecal coliform in sludge, CFU/gram100
Mercury, tot in bot deposits [dry wgt]100
Molybdenum, sludge, total, dry weight [as Mo]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

DateWhat EPA recordedAgency
June 13, 2025Permit Violations - Violation Specified in CommentST6
August 27, 2021Biosolids: Other Management Practice ViolationST6

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 OH0098043 there.

Nearby on the register

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