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Clean Water Act discharge permit · NPDES CT0029947

SILVER LAKE, Berlin, CT: NPDES CT0029947 discharge permit, effluent exceedances, inspections, penalties

SILVER LAKE holds NPDES permit CT0029947, which discharges to Silver Lk-Belcher Brk-Mattabasset. EPA’s file records it issued June 30, 2003 and expiring June 29, 2008. 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 filedSILVER LAKE
Permittee as filedSILVER LAKE
NPDES IDCT0029947
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJune 30, 2003
Expiration dateJune 29, 2008
Issuing agencyCT DEP
AddressBerlin, CT 06037
Receiving waterSILVER LK-BELCHER BRK-MATTABASSET
Receiving water impaired303(D) Listed
SubwatershedUpper Mattabesset River (HUC 010802050601)
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
Turbidity111September 30, 2014
Solids, total suspended111July 31, 201327% over the limit
Flow, maximum during 24 hr period210
Aluminum, total [as Al]110
Arsenic, total [as As]200
Flow rate100
Phosphate, total [as PO4]100
Copper, total [as Cu]100
Iron, total [as Fe]100
Lead, total [as Pb]100
Nickel, total [as Ni]100
Zinc, total [as Zn]100
Phosphorous, in total orthophosphate100
Pass/Fail Static 48Hr Acute D. Pulex100
Pass/Fail Static 96 Hr Acute Pimephales Promelas100

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 CT0029947.

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 CT0029947 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 Clean Water Act discharge permit NPDES CT0029947 for SILVER LAKE in Berlin, CT, a minor discharger whose permit is administratively continued after its expiration date. The page lists 15 pollutants on file, 2 pollutants under a numeric limit, and 15 pollutants with an effluent exceedance, with the permit issued June 30, 2003 and expiring June 29, 2008.