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AQUARION-GREENWICH

Connecticut — Community Water System — PWSID: CT0570011

System Information

PWSIDCT0570011
System NameAQUARION-GREENWICH
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypePrivate
EPA Region01
Serves SchoolNo
WholesalerNo
First ReportedMar 8, 1979
Last ReportedDec 15, 2025

Location & Contact

StateConnecticut
CitySHELTON
ZIP Code06484
Address505 Huntington St.
OrganizationULRICH, ROBERT J.
Phone203-926-4320

Population & Service

Population Served53,297
Service Connections17,060

Drinking Water Violations (109)

This water system has 109 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
Jun 1, 2024 Jun 30, 2024 Chlorite MR No Yes — 1.0 mg/L — Resolved Jun 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2024 Jun 30, 2024 Chlorite MR No Yes — 1.0 mg/L — Resolved Jun 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2024 Jun 30, 2024 Chlorite MR No Yes — 1.0 mg/L — Resolved Jun 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2024 Jun 30, 2024 Chlorite MR No Yes — 1.0 mg/L — Resolved Jun 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 30, 2019 — Lead and Copper Rule MR No No — TT — Resolved Jan 16, 2020 Lead and Copper Rule
Oct 1, 2018 Dec 31, 2018 CARBON, TOTAL MR No Yes — TT — Resolved Dec 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Dec 31, 2018 CARBON, TOTAL MR No Yes — TT — Resolved Dec 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Dec 31, 2018 CARBON, TOTAL MR No Yes — TT — Resolved Dec 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Dec 31, 2018 CARBON, TOTAL MR No Yes — TT — Resolved Dec 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2018 — Consumer Confidence Rule Other No No — — — Resolved Jul 9, 2018 Consumer Confidence Rule
Jul 1, 2018 — Consumer Confidence Rule Other No No — — — Resolved Jul 9, 2018 Consumer Confidence Rule
Jan 1, 2018 Dec 31, 2018 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2018 Volatile Organic Chemicals
Jan 1, 2018 Dec 31, 2018 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2018 Volatile 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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