AQUARION-HICKORY HILLS

Connecticut — Community Water System — PWSID: CT0180101

System Information

PWSID	CT0180101
System Name	AQUARION-HICKORY HILLS
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Private
EPA Region	01
Serves School	No
Wholesaler	No
First Reported	Mar 8, 1979
Last Reported	Dec 15, 2025

Location & Contact

State	Connecticut
City	SHELTON
ZIP Code	06484
Address	505 Huntington St.
Organization	ULRICH, ROBERT J.
Phone	203-926-4320

Population & Service

Population Served	132
Service Connections	38

Drinking Water Violations (360)

This water system has 360 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, 2019	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jan 16, 2020	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
Jan 1, 2018	Dec 31, 2018	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2018	Nitrate Rule
Jan 1, 2018	Dec 31, 2018	Nitrite	MR	No	Yes	—	1 mg/L	—	Resolved	Dec 31, 2018	Nitrate Rule
Jan 1, 2018	Dec 31, 2018	Nitrite	MR	No	Yes	—	1 mg/L	—	Resolved	Dec 31, 2018	Nitrate Rule
Jan 1, 2018	Dec 31, 2018	Nitrite	MR	No	Yes	—	1 mg/L	—	Resolved	Dec 31, 2018	Nitrate Rule
Jan 1, 2018	Dec 31, 2018	Nitrite	MR	No	Yes	—	1 mg/L	—	Resolved	Dec 31, 2018	Nitrate Rule
Jan 1, 2018	Dec 31, 2018	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2018	Nitrate Rule
Jan 1, 2018	Dec 31, 2018	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2018	Nitrate Rule
Jan 1, 2018	Dec 31, 2018	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2018	Nitrate Rule
Jul 1, 2016	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jun 14, 2016	Consumer Confidence Rule
Jan 1, 2016	Dec 31, 2018	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2018	Arsenic Rule
Jan 1, 2016	Dec 31, 2018	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2018	Arsenic Rule
Jan 1, 2016	Dec 31, 2018	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2018	Arsenic Rule
Jan 1, 2016	Dec 31, 2018	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2018	Arsenic Rule
Jan 1, 2016	Dec 31, 2018	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2016	Dec 31, 2018	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2018	Inorganic 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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