Vehicle Safety
Recalls Search 320,000+ NHTSA safety recalls Complaints 2.1M+ consumer safety complaints TSBs 4.7M technical service bulletins VIN Lookup Decode any vehicle VIN instantly OBD Codes 12,000+ diagnostic trouble codes Fuel Economy EPA MPG data for all vehicles Safety Ratings 11,700+ NHTSA crash test ratings Investigations 5,300+ NHTSA defect investigations Statistics Recall trends & safety analysis
Consumer Safety
Product Safety 9,700+ CPSC product recalls Food Safety 28,600+ FDA food recalls Pet Safety 1.3M FDA animal adverse events Drug Safety 17,500+ FDA drug recalls Device Safety 38,400+ FDA device recalls Workplace Safety 102,900+ OSHA injury reports Brand History Cross-category recall lookup by company
Infrastructure
Bridge Safety 624,000 bridge inspections Aviation Safety 30,000+ NTSB aviation events Dam Safety 92,600 dam safety records Water Safety 433,000+ public water systems Railroad Safety 438,000+ rail crossings Pipeline Safety 8,800+ pipeline incidents
Public Health
Nursing Homes 14,700 CMS rated facilities Environmental 80,000+ hazardous sites & releases

AQUARION-TWIN OAKS

Connecticut — Community Water System — PWSID: CT0968011

System Information

PWSIDCT0968011
System NameAQUARION-TWIN OAKS
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region01
Serves SchoolNo
WholesalerNo
First ReportedNov 3, 1992
Last ReportedDec 15, 2025

Location & Contact

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

Population & Service

Population Served152
Service Connections57

Drinking Water Violations (61)

This water system has 61 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
Dec 30, 2021 — Lead and Copper Rule MR No No — TT — Resolved Jan 21, 2022 Lead and Copper 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
Jul 1, 2006 — Consumer Confidence Rule Other No No — — — Resolved Aug 9, 2006 Consumer Confidence Rule
Jul 1, 2006 — Consumer Confidence Rule Other No No — — — Resolved Aug 9, 2006 Consumer Confidence Rule
May 18, 2006 — Public Notice Other No No — — — Resolved Jan 8, 2007 Public Notice Rule and Revised PN Rule
Jan 1, 2004 Dec 31, 2006 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2004 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Dec 31, 2004 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Dec 31, 2004 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Dec 31, 2004 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Dec 31, 2004 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Dec 31, 2004 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Dec 31, 2004 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Dec 31, 2004 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Dec 31, 2006 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2004 Dec 31, 2006 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2006 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.

Browse All Water Systems Water Safety Stats Water Safety Home
Browse All Water Systems Water Systems in Connecticut