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Clean Water Act discharge permit · NPDES IN0043273

CARRIAGE ESTATES SUBDIVISION, West Lafayette, IN: NPDES IN0043273 discharge permit, effluent exceedances, inspections, penalties

CARRIAGE ESTATES SUBDIVISION, held by CARRIAGE ESTATES III WWTP, holds NPDES permit IN0043273, which discharges to Or/Wabash River/Indian Creek. EPA’s file records it issued January 27, 2021 and expiring January 31, 2026. 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 filedCARRIAGE ESTATES SUBDIVISION
Permittee as filedCARRIAGE ESTATES III WWTP
NPDES IDIN0043273
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
IssuedJanuary 27, 2021
Expiration dateJanuary 31, 2026
Issuing agencyIDEM
AddressWest Lafayette, IN 47906
Receiving waterOR/WABASH RIVER/INDIAN CREEK
SubwatershedIndian Creek (HUC 051201080501)

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]83535October 31, 2018444% over the limit
Chlorine, total residual099July 31, 2018650% over the limit
BOD, carbonaceous [5 day, 20 C]866September 30, 201899,999% over the limit
Solids, total suspended895October 31, 20191,008% over the limit
BOD, carb-5 day, 20 deg C, percent removal122September 30, 201820% over the limit
E. coli, colony forming units [CFU]311October 31, 2018561% over the limit
pH211April 30, 2016
Nitrogen, total [as N]240
Toxicity [acute], Ceriodaphnia dubia220
Toxicity [chronic], Ceriodaphnia dubia220
Toxicity [acute], Pimephales promelas [Fathead Minnow]220
Toxicity [chronic], Pimephales promelas [Fathead Minnow]220
LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia020
LC50 Static Renewal 96Hr Acute Pimephales promelas020
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia020
Noel Statre 7Day Chronic Pimephales020
Oxygen, dissolved [DO]210
Phosphorus, total [as P]210
Number of Events210
Flow, in conduit or thru treatment plant110
Flow, total110
Solids, suspended percent removal100

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 IN0043273.

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.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, IN0043273.

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  • One state — $4,990/year
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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 IN0043273 there.

Nearby on the register

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