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AQUARION-INTERLAKEN

Connecticut — Community Water System — PWSID: CT0911061

System Information

PWSIDCT0911061
System NameAQUARION-INTERLAKEN
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region01
Serves SchoolNo
WholesalerNo
First ReportedApr 3, 1979
Last ReportedDec 15, 2025

Location & Contact

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

Population & Service

Population Served64
Service Connections18

Drinking Water Violations (321)

This water system has 321 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
Jan 1, 2022 Jan 31, 2022 E. COLI MR No Yes — — — Resolved Jan 31, 2022 Ground Water Rule
Jan 1, 2022 Jan 31, 2022 E. COLI MR No Yes — — — Resolved Jan 31, 2022 Ground Water Rule
Jan 1, 2022 Jan 31, 2022 E. COLI MR No Yes — — — Resolved Jan 31, 2022 Ground Water Rule
Jan 1, 2022 Jan 31, 2022 E. COLI MR No Yes — — — Resolved Jan 31, 2022 Ground Water Rule
Dec 1, 2019 Dec 31, 2019 E. COLI MR No Yes — — — Resolved Dec 31, 2019 Ground Water Rule
Dec 1, 2019 Dec 31, 2019 E. COLI MR No Yes — — — Resolved Dec 31, 2019 Ground Water Rule
Jul 1, 2019 Jul 31, 2019 E. COLI MR No Yes — — — Archived Jul 31, 2019 Ground Water Rule
Jul 1, 2019 Jul 31, 2019 E. COLI MR No Yes — — — Archived Jul 31, 2019 Ground Water Rule
Jul 1, 2019 Jul 31, 2019 E. COLI MR No Yes — — — Archived Jul 31, 2019 Ground Water Rule
Dec 30, 2017 — Lead and Copper Rule MR No No — TT — Resolved Oct 26, 2018 Lead and Copper Rule
Dec 30, 2017 — Lead and Copper Rule MR No No — TT — Resolved Oct 26, 2018 Lead and Copper Rule
Jul 1, 2017 — Consumer Confidence Rule Other No No — — — Resolved Jul 24, 2017 Consumer Confidence Rule
Jul 1, 2017 — Consumer Confidence Rule Other No No — — — Resolved Jul 24, 2017 Consumer Confidence Rule
Dec 10, 2016 — Revised Total Coliform Rule RPT No No — — — Resolved Apr 21, 2017 Revised Total Coliform Rule
Dec 10, 2016 — Revised Total Coliform Rule RPT No No — — — Resolved Apr 21, 2017 Revised Total Coliform Rule
Dec 10, 2016 — Revised Total Coliform Rule RPT No No — — — Resolved Apr 21, 2017 Revised Total Coliform Rule
Dec 10, 2016 — Revised Total Coliform Rule RPT No No — — — Resolved Apr 21, 2017 Revised Total Coliform Rule
Oct 10, 2016 — Revised Total Coliform Rule RPT No No — — — Resolved Dec 1, 2016 Revised Total Coliform Rule
Oct 10, 2016 — Revised Total Coliform Rule RPT No No — — — Resolved Dec 1, 2016 Revised Total Coliform Rule
Oct 10, 2016 — Revised Total Coliform Rule RPT No No — — — Resolved Dec 1, 2016 Revised Total Coliform Rule
Oct 10, 2016 — Revised Total Coliform Rule RPT No No — — — Resolved Dec 1, 2016 Revised Total Coliform Rule
Oct 1, 2016 — Lead and Copper Rule MR No No — TT — Resolved Sep 12, 2017 Lead and Copper Rule
Oct 1, 2016 — Lead and Copper Rule MR No No — TT — Resolved Sep 12, 2017 Lead and Copper Rule
Oct 1, 2016 — Lead and Copper Rule MR No No — TT — Resolved Sep 12, 2017 Lead and Copper Rule
Oct 1, 2016 — Lead and Copper Rule MR No No — TT — Resolved Sep 12, 2017 Lead and Copper Rule
Jul 1, 2016 — Consumer Confidence Rule Other No No — — — Resolved Jul 13, 2016 Consumer Confidence Rule
Jul 1, 2015 — Consumer Confidence Rule Other No No — — — Resolved Jul 20, 2015 Consumer Confidence Rule
Jul 1, 2015 — Consumer Confidence Rule Other No No — — — Resolved Jul 20, 2015 Consumer Confidence Rule
Jul 1, 2013 — Consumer Confidence Rule Other No No — — — Resolved Jul 9, 2013 Consumer Confidence Rule
Jul 1, 2013 — Consumer Confidence Rule Other No No — — — Resolved Jul 9, 2013 Consumer Confidence Rule
Jul 1, 2012 — Consumer Confidence Rule Other No No — — — Resolved Aug 27, 2012 Consumer Confidence Rule
Jul 1, 2012 — Consumer Confidence Rule Other No No — — — Resolved Aug 27, 2012 Consumer Confidence Rule
Aug 10, 2011 — Consumer Confidence Rule Other No No — — — Resolved Aug 27, 2011 Consumer Confidence Rule
Aug 10, 2011 — Consumer Confidence Rule Other No No — — — Resolved Aug 27, 2011 Consumer Confidence Rule
Jul 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Aug 27, 2011 Consumer Confidence Rule
Jul 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Aug 27, 2011 Consumer Confidence Rule
Oct 1, 2010 — Consumer Confidence Rule Other No No — — — Resolved Jul 20, 2016 Consumer Confidence Rule
Oct 1, 2010 — Consumer Confidence Rule Other No No — — — Resolved Jul 20, 2016 Consumer Confidence Rule
Aug 10, 2009 — Consumer Confidence Rule Other No No — — — Unaddressed — Consumer Confidence Rule
Jul 1, 2008 — Consumer Confidence Rule Other No No — — — Resolved Jul 14, 2008 Consumer Confidence Rule
Jul 1, 2008 — Consumer Confidence Rule Other No No — — — Resolved Jul 14, 2008 Consumer Confidence Rule
Jan 5, 2007 — Public Notice Other No No — — — Resolved Jul 9, 2007 Public Notice Rule and Revised PN Rule
Jan 5, 2007 — Public Notice Other No No — — — Resolved Jul 9, 2007 Public Notice Rule and Revised PN Rule
Nov 1, 2006 Nov 30, 2006 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 2006 Total Coliform Rule
Nov 1, 2006 Nov 30, 2006 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 2006 Total Coliform Rule
Nov 1, 2006 Nov 30, 2006 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 2006 Total Coliform Rule
Nov 1, 2006 Nov 30, 2006 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 2006 Total Coliform Rule
Oct 1, 2006 Oct 31, 2006 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2006 Total Coliform Rule
Oct 1, 2006 Oct 31, 2006 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2006 Total Coliform Rule
Oct 1, 2006 Oct 31, 2006 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2006 Total Coliform Rule

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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