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Clean Water Act discharge permit · NPDES IN0032867

SHELBYVILLE WWTP, CITY OF, Shelbyville, IN: NPDES IN0032867 discharge permit, effluent exceedances, inspections, penalties

SHELBYVILLE WWTP, CITY OF holds NPDES permit IN0032867, which discharges to Big Blue R To Driftwood River. EPA’s file records it issued February 10, 2021 and expiring March 31, 2026. 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 filedSHELBYVILLE WWTP, CITY OF
Permittee as filedSHELBYVILLE WWTP, CITY OF
NPDES IDIN0032867
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, 2021
Expiration dateMarch 31, 2026
Issuing agencyIDEM
AddressShelbyville, IN 46176
Receiving waterBIG BLUE R TO DRIFTWOOD RIVER
SubwatershedDePrez Ditch-Big Blue River (HUC 051202040806)
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
E. coli, colony forming units [CFU]36060July 31, 202699,999% over the limit
Nitrogen, ammonia total [as N]82212June 30, 2007156% over the limit
Coliform, fecal general099October 31, 20001,145% over the limit
Solids, suspended percent removal088April 30, 201970% over the limit
Oxygen, dissolved [DO]143August 31, 202218% over the limit
Nickel, total recoverable082March 31, 2007194% over the limit
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia022March 31, 200086% over the limit
Noel Statre 7Day Chronic Pimephales022March 31, 200086% over the limit
Phosphorus, total [as P]211January 31, 20267% over the limit
LC50 Static Renewal 96Hr Acute Pimephales promelas011February 29, 200063% over the limit
BOD, carbonaceous [5 day, 20 C]8120
Solids, total suspended8110
Zinc, total recoverable2100
Cyanide, total [as CN]080
pH250
Nitrogen, total [as N]240
Copper, total recoverable240
Flow, in conduit or thru treatment plant140
Cadmium, total [as Cd]040
Chromium, total [as Cr]040
Copper, total [as Cu]040
Lead, total [as Pb]040
Nickel, total [as Ni]040
Zinc, total [as Zn]040
Chromium, total recoverable040
Arsenic, dry weight030
Selenium, dry weight030
Copper, dry weight030
Cadmium, dry weight030
Zinc, sludge, total, dry weight [as Zn]030
Lead, sludge, total, dry weight [as Pb]030
Nickel, sludge, total, dry weight [as Ni]030
Mercury, sludge, total, dry weight [as Hg]030
Lead, total recoverable220
Cadmium, total recoverable020
Molybdenum, sludge, total, dry weight [as Mo]020
Flow, total110
Pollutant table from 503.13010
Level of pathogen requirements achieved010
Description of pathogen option used010
Vector attraction reduction alternative used010
Toxicity [acute], Ceriodaphnia dubia300
Toxicity [chronic], Ceriodaphnia dubia300
Toxicity [acute], Pimephales promelas [Fathead Minnow]300
Toxicity [chronic], Pimephales promelas [Fathead Minnow]300
Number of Events200

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
August 12, 2026Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangermentST6

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 IN0032867 for the Shelbyville WWTP, operated by the City of Shelbyville, Indiana, which discharges to the Big Blue R To Driftwood River within the DePrez Ditch-Big Blue River subwatershed (HUC 051202040806). The page lists a Major Discharger class, 18 pollutants under a numeric limit, and 10 pollutants with an effluent exceedance.