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STERLING WATER SYSTEM

Connecticut — Community Water System — PWSID: CT1360011

System Information

PWSIDCT1360011
System NameSTERLING WATER SYSTEM
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region01
Serves SchoolNo
WholesalerNo
First ReportedMar 8, 1979
Last ReportedDec 15, 2025

Location & Contact

StateConnecticut
CityONECO
ZIP Code06373
Address1183 Plainfield Pike
OrganizationCOOPER, LINCOLN
Phone860-564-2904

Population & Service

Population Served308
Service Connections90

Drinking Water Violations (92)

This water system has 92 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Sep 1, 2018 Aug 31, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2018 Aug 31, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2018 Aug 31, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2018 Aug 31, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2018 Aug 31, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2018 Aug 31, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2018 Aug 31, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2018 Aug 31, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 — Consumer Confidence Rule Other No No — — — Unaddressed — Consumer Confidence Rule
Apr 1, 2011 Jun 30, 2011 Dalapon MR No Yes — 0.2 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Carbofuran MR No Yes — 0.04 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Dalapon MR No Yes — 0.2 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Jun 30, 2011 Radionuclides and Revised Rad Rule
Apr 1, 2011 Jun 30, 2011 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Jun 30, 2011 Radionuclides and Revised Rad Rule
Apr 1, 2011 Jun 30, 2011 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Toxaphene MR No Yes — 0.003 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Toxaphene MR No Yes — 0.003 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 ManMade Beta Particle and Photon Emitter MR No Yes — — — Resolved Jun 30, 2011 Radionuclides and Revised Rad Rule
Apr 1, 2011 Jun 30, 2011 Dinoseb MR No Yes — 0.007 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Picloram MR No Yes — 0.5 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Picloram MR No Yes — 0.5 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Dinoseb MR No Yes — 0.007 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 LASSO MR No Yes — — — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Glyphosate MR No Yes — 0.7 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Glyphosate MR No Yes — 0.7 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Aldicarb sulfoxide MR No Yes — — — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Aldicarb sulfoxide MR No Yes — — — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Gross Beta Particle Activity MR No Yes — 4 mrem/yr — Resolved Jun 30, 2011 Radionuclides and Revised Rad Rule
Apr 1, 2011 Jun 30, 2011 Gross Beta Particle Activity MR No Yes — 4 mrem/yr — Resolved Jun 30, 2011 Radionuclides and Revised Rad Rule
Apr 1, 2011 Jun 30, 2011 Carbofuran MR No Yes — 0.04 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Simazine MR No Yes — 0.004 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 2,4-D MR No Yes — 0.07 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Atrazine MR No Yes — 0.003 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Atrazine MR No Yes — 0.003 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Aldicarb MR No Yes — — — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Aldicarb MR No Yes — — — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Aldicarb sulfone MR No Yes — — — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Aldicarb sulfone MR No Yes — — — Resolved Jun 30, 2011 Synthetic Organic Chemicals
Apr 1, 2011 Jun 30, 2011 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Jun 30, 2011 Synthetic Organic Chemicals

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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