Clean Water Act discharge permit · NPDES CT0003883
MIDDLETOWN POWER LLC, Middletown, CT: NPDES CT0003883 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 32Pollutants under a numeric limit
- 11Pollutants with an effluent exceedance
MIDDLETOWN POWER LLC, held by MIDDLETOWN POWER LLC c/o EASTERN GENERATION LLC, holds NPDES permit CT0003883, which discharges to Connecticut River. EPA’s file records it issued March 19, 2001 and expiring March 18, 2006. 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 filed | MIDDLETOWN POWER LLC |
|---|---|
| Permittee as filed | MIDDLETOWN POWER LLC c/o EASTERN GENERATION LLC |
| NPDES ID | CT0003883 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | March 19, 2001 |
| Expiration date | March 18, 2006 |
| Issuing agency | CT DEP |
| Address | Middletown, CT 06457 |
| Receiving water | CONNECTICUT RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Mill Creek-Connecticut River (HUC 010802050702) |
| Other EPA IDs (FRS) | RCRA handler CTD000845230; ICIS-AIR source CT0000000900700108 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 32Pollutants on file
- 32Under a numeric limit
- 27With a violation of any kind
- 11With an effluent exceedance
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 measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Flow rate | 9 | 11 | 10 | September 30, 2015 | 15% over the limit |
| Arsenic, total [as As] | 6 | 8 | 6 | February 28, 2025 | 47% over the limit |
| Lead, total [as Pb] | 8 | 9 | 5 | December 31, 2006 | 250% over the limit |
| Solids, total suspended | 6 | 5 | 3 | July 31, 2024 | 60% over the limit |
| Iron, total [as Fe] | 6 | 5 | 3 | July 31, 2026 | 72% over the limit |
| Copper, total [as Cu] | 10 | 6 | 2 | April 30, 2018 | 23% over the limit |
| Flow | 10 | 5 | 1 | October 31, 2006 | 2% over the limit |
| Oxidants, total residual | 6 | 4 | 1 | September 30, 2003 | 150% over the limit |
| pH | 16 | 3 | 1 | September 30, 2015 | |
| Oil & Grease | 5 | 3 | 1 | January 31, 2009 | 100% over the limit |
| Flow, maximum during 24 hr period | 8 | 2 | 1 | April 30, 2005 | 899% over the limit |
| Zinc, total [as Zn] | 10 | 4 | 0 | ||
| Nitrogen, ammonia total [as N] | 6 | 4 | 0 | ||
| Nickel, total [as Ni] | 6 | 4 | 0 | ||
| Mercury, total [as Hg] | 4 | 3 | 0 | ||
| Nitrogen, nitrite total [as N] | 4 | 2 | 0 | ||
| Nitrogen, nitrate total [as N] | 4 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 2 | 0 | ||
| Vanadium, total [as V] | 4 | 2 | 0 | ||
| Aluminum, total [as Al] | 4 | 2 | 0 | ||
| Hydrazine | 4 | 2 | 0 | ||
| Pass/Fail Static 48Hr Acute D. Pulex | 4 | 2 | 0 | ||
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 4 | 2 | 0 | ||
| Fluoride, total [as F] | 3 | 2 | 0 | ||
| Surfactants [MBAS] | 2 | 2 | 0 | ||
| Flow rate | 5 | 1 | 0 | ||
| Chromium, total [as Cr] | 3 | 1 | 0 | ||
| Temperature, water deg. fahrenheit | 6 | 0 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 6 | 0 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 6 | 0 | 0 | ||
| Cadmium, total [as Cd] | 4 | 0 | 0 | ||
| Chlorine, total residual | 2 | 0 | 0 |
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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 9, 2023 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
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 CT0003883 there.
Nearby on the register
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- Every permit record in Middletown, A to Z
- Discharge permits in Connecticut
- Every permit record in Connecticut, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.