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AQUARION-MARLBOROUGH

Connecticut — Community Water System — PWSID: CT0798013

System Information

PWSIDCT0798013
System NameAQUARION-MARLBOROUGH
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region01
Serves SchoolYes
WholesalerNo
First ReportedAug 9, 2007
Last ReportedDec 15, 2025

Location & Contact

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

Population & Service

Population Served1,348
Service Connections128

Drinking Water Violations (487)

This water system has 487 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
Oct 1, 2019 Dec 31, 2019 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Toxaphene MR No Yes — 0.003 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Oct 1, 2019 Dec 31, 2019 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Oct 1, 2019 Dec 31, 2019 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Toxaphene MR No Yes — 0.003 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Oct 1, 2019 Dec 31, 2019 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Oct 1, 2019 Dec 31, 2019 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Oct 1, 2019 Dec 31, 2019 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2019 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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