Velarion Records

Clean Water Act discharge permit · NPDES CTR050106

MONTVILLE POWER, LLC, Uncasville, CT: NPDES CTR050106 discharge permit, effluent exceedances, inspections, penalties

MONTVILLE POWER, LLC, held by MONTVILLE POWER LLC, holds NPDES permit CTR050106. EPA’s file records it issued July 2, 2026 and expiring September 30, 2030. 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.

What the register holds for MONTVILLE POWER, LLC: its NPDES ID, its permit type and status, its dates, its address in Uncasville, Connecticut, and 32 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES CTR050106.

Identity

Facility as filedMONTVILLE POWER, LLC
Permittee as filedMONTVILLE POWER LLC
NPDES IDCTR050106
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedJuly 2, 2026
Expiration dateSeptember 30, 2030
Issuing agencyCT DEEP
AddressUncasville, CT 06382
Receiving water impaired303(D) Listed
SubwatershedThames River-Frontal New London Harbor (HUC 011000030203)
Other EPA IDs (FRS)RCRA handler CTD049181654; ICIS-AIR source CT0000000901100005

Cited to the EPA ICIS-NPDES permit file (ECHO 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
pH800
Conductivity400
Solids, total suspended400
Oil & Grease400
Nitrogen, Kjeldahl, total [as N]400
Phosphorous, total recoverable400
Hardness, total [as CaCO3]400
Iron, total recoverable400
Zinc, total recoverable400
Lead, total recoverable400
Copper, total recoverable400
Acenaphthylene400
Acenaphthene400
Anthracene400
Benzo[b]fluoranthene400
Benzo[k]fluoranthene400
Benzo[a]pyrene400
Chrysene400
Fluoranthene400
Fluorene400
Indeno[1,2,3-cd]pyrene400
Phenanthrene400
Pyrene400
Benzo[ghi]perylene400
Benzo[a]anthracene400
Dibenz[a,h]anthracene400
Naphthalene400
Nitrogen, nitrate total [as NO3]400
Chemical Oxygen Demand [COD]400
LC50 Static 48Hr Acute D. Pulex400
NOAEL Static 48Hr Acute D. pulex400
%Surv Static 48Hr Acute Daphnia Pulex400

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES CTR050106.

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 CTR050106.

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 CTR050106 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act NPDES permit CTR050106, held by MONTVILLE POWER, LLC in Uncasville, CT, with a status of Effective and a Minor Discharger class. The register lists 32 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, with the permit issued July 2, 2026 and expiring September 30, 2030.

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