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Clean Water Act discharge permit · NPDES IN0020176

MONTICELLO WWTP, Monticello, IN: NPDES IN0020176 discharge permit, effluent exceedances, inspections, penalties

MONTICELLO WWTP holds NPDES permit IN0020176, which discharges to Tippecanoe R (Lake Freeman). EPA’s file records it issued June 20, 2019 and expiring November 30, 2024. 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 filedMONTICELLO WWTP
Permittee as filedMONTICELLO WWTP
NPDES IDIN0020176
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
IssuedJune 20, 2019
Expiration dateNovember 30, 2024
Issuing agencyIDEM
AddressMonticello, IN 47960
Receiving waterTIPPECANOE R (LAKE FREEMAN)
Receiving water impaired303(D) Listed
SubwatershedLake Freeman-Tippecanoe River (HUC 051201061304)
Program components on fileBiosolids, CSO, POTW, Pretreatment
SIC4952 – Sewerage Systems
Other EPA IDs (FRS)RCRA handler INR000100321

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same 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
Copper, total recoverable82624December 31, 2018519% over the limit
Chlorine, total residual02317October 31, 201299,999% over the limit
Phosphorus, total percent removal01311March 31, 2008396% over the limit
Arsenic, dry weight099September 30, 200791% over the limit
Nitrogen, ammonia total [as N]16188May 31, 2017156% over the limit
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia064March 31, 201594% over the limit
Mercury, total recoverable844October 31, 2022123% over the limit
Oxygen, dissolved [DO]253September 30, 201934% over the limit
E. coli, colony forming units [CFU]622June 30, 2012745% over the limit
Phosphorus, total [as P]431October 31, 199912% over the limit
Molybdenum, sludge, total, dry weight [as Mo]211September 30, 20129% over the limit
Mercury, sludge, total, dry weight [as Hg]211December 31, 20074% over the limit
Solids, total suspended880
BOD, carbonaceous [5 day, 20 C]880
pH440
Flow, in conduit or thru treatment plant240
Chromium, total recoverable040
Molybdenum, total recoverable040
Toxicity [acute], Ceriodaphnia dubia430
Toxicity [chronic], Ceriodaphnia dubia430
Toxicity [acute], Pimephales promelas [Fathead Minnow]430
Toxicity [chronic], Pimephales promelas [Fathead Minnow]430
Precipitation, monthly accumulation720
Nitrogen, total [as N]420
LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia020
LC50 Static Renewal 96Hr Acute Pimephales promelas020
Noel Statre 7Day Chronic Pimephales020
Duration710
Overflow volume [SS0 volume, CSO volume]710
Discharge event observation [Visual Monitoring]710
Flow, wastewater by-passing trtmnt plant010
Zinc, total recoverable800
Cadmium, total recoverable800
Lead, total recoverable800
Number of Events400
Copper, dry weight200
Cadmium, dry weight200
Zinc, sludge, total, dry weight [as Zn]200
Lead, sludge, total, dry weight [as Pb]200
Nickel, sludge, total, dry weight [as Ni]200
Flow, total200

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 IN0020176.

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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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 IN0020176 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit IN0020176 for MONTICELLO WWTP in Monticello, IN, a major discharger publicly owned treatment works that discharges to TIPPECANOE R (LAKE FREEMAN). The permit is listed as administratively continued, with 31 pollutants under a numeric limit and 12 pollutants with an effluent exceedance. Program components on file are Biosolids, CSO, POTW, and Pretreatment.