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HADDAM-KILLINGWORTH HIGH SCHOOL

Connecticut — Non-Transient Non-Community — PWSID: CT0610563

System Information

PWSIDCT0610563
System NameHADDAM-KILLINGWORTH HIGH SCHOOL
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region01
Serves SchoolYes
WholesalerNo
First ReportedNov 22, 1993
Last ReportedDec 15, 2025

Location & Contact

StateConnecticut
CityKILLINGWORTH
ZIP Code06419
Address340 Route 81
OrganizationCONVERSE, JOHN
Phone860-354-4534

Population & Service

Population Served642
Service Connections1

Drinking Water Violations (85)

This water system has 85 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
Nov 16, 2018 — Revised Total Coliform Rule TT Yes No — — — Resolved Nov 21, 2018 Revised Total Coliform Rule
Nov 16, 2018 — Revised Total Coliform Rule TT Yes No — — — Resolved Nov 21, 2018 Revised Total Coliform Rule
Nov 16, 2018 — Revised Total Coliform Rule TT Yes No — — — Resolved Nov 21, 2018 Revised Total Coliform Rule
Nov 16, 2018 — Revised Total Coliform Rule TT Yes No — — — Resolved Nov 21, 2018 Revised Total Coliform Rule
Aug 12, 2018 — Revised Total Coliform Rule RPT No No — — — Resolved Aug 22, 2018 Revised Total Coliform Rule
Aug 12, 2018 — Revised Total Coliform Rule RPT No No — — — Resolved Aug 22, 2018 Revised Total Coliform Rule
Aug 12, 2018 — Revised Total Coliform Rule RPT No No — — — Resolved Aug 22, 2018 Revised Total Coliform Rule
Aug 12, 2018 — Revised Total Coliform Rule RPT No No — — — Resolved Aug 22, 2018 Revised Total Coliform Rule
Mar 1, 2017 Mar 31, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2017 Revised Total Coliform Rule
Mar 1, 2017 Mar 31, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2017 Revised Total Coliform Rule
Mar 1, 2017 Mar 31, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2017 Revised Total Coliform Rule
Mar 1, 2017 Mar 31, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2017 Revised Total Coliform Rule
Feb 1, 2017 Feb 28, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 28, 2017 Revised Total Coliform Rule
Feb 1, 2017 Feb 28, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 28, 2017 Revised Total Coliform Rule
Feb 1, 2017 Feb 28, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 28, 2017 Revised Total Coliform Rule
Feb 1, 2017 Feb 28, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 28, 2017 Revised Total Coliform Rule
Nov 8, 2016 — E. COLI MR No Yes — — — Resolved Nov 25, 2020 Ground Water Rule
Nov 8, 2016 — E. COLI MR No Yes — — — Resolved Nov 25, 2020 Ground Water Rule
Nov 8, 2016 — E. COLI MR No Yes — — — Resolved Nov 25, 2020 Ground Water Rule
Nov 8, 2016 — E. COLI MR No Yes — — — Resolved Nov 25, 2020 Ground Water Rule
Nov 8, 2016 — E. COLI MR No Yes — — — Resolved Nov 25, 2020 Ground Water Rule
Nov 8, 2016 — E. COLI MR No Yes — — — Resolved Nov 25, 2020 Ground Water Rule
Nov 8, 2016 — E. COLI MR No Yes — — — Resolved Nov 25, 2020 Ground Water Rule
Nov 8, 2016 — E. COLI MR No Yes — — — Resolved Nov 25, 2020 Ground Water Rule
Dec 30, 2014 — Lead and Copper Rule MR No No — TT — Resolved May 8, 2017 Lead and Copper Rule
Dec 30, 2014 — Lead and Copper Rule MR No No — TT — Resolved May 8, 2017 Lead and Copper Rule
Jul 1, 2013 Sep 30, 2013 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2013 Total Coliform Rule
Jul 1, 2013 Sep 30, 2013 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2013 Total Coliform Rule
Jul 1, 2013 Sep 30, 2013 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2013 Total Coliform Rule
Jul 1, 2013 Sep 30, 2013 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2013 Total Coliform Rule
Jul 1, 2011 Sep 30, 2011 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2011 Total Coliform Rule
Jan 1, 2006 — Lead and Copper Rule MR No No — TT — Resolved Mar 18, 2009 Lead and Copper Rule
Jan 1, 2006 — Lead and Copper Rule MR No No — TT — Resolved Mar 18, 2009 Lead and Copper Rule
Jan 1, 2005 Dec 31, 2007 Endrin MR No Yes — 0.002 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Aldicarb MR No Yes — — — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 2,4,5-TP MR No Yes — 0.05 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Dinoseb MR No Yes — 0.007 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Picloram MR No Yes — 0.5 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 BHC-GAMMA MR No Yes — 0.0002 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Diquat MR No Yes — 0.02 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Toxaphene MR No Yes — 0.003 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Carbofuran MR No Yes — 0.04 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Simazine MR No Yes — 0.004 mg/L — Archived Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Archived Dec 31, 2007 Synthetic 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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