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TALCOTT MOUNTAIN SCIENCE CENTER #2

Connecticut — Non-Transient Non-Community — PWSID: CT0040483

System Information

PWSIDCT0040483
System NameTALCOTT MOUNTAIN SCIENCE CENTER #2
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region01
Serves SchoolYes
WholesalerNo
First ReportedMay 17, 1996
Last ReportedDec 15, 2025

Location & Contact

StateConnecticut
CityAVON
ZIP Code06001
Address324 Montevideo Road
OrganizationCONLIN, SEAN
Phone860-677-8571

Population & Service

Population Served59
Service Connections1

Drinking Water Violations (127)

This water system has 127 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 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Unaddressed — Lead and Copper Rule Revisions
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2022 Aug 31, 2022 Groundwater Rule TT Yes No — — — Resolved Aug 31, 2022 Ground Water Rule
Aug 1, 2022 Aug 31, 2022 Groundwater Rule TT Yes No — — — Resolved Aug 31, 2022 Ground Water Rule
Aug 1, 2022 Aug 31, 2022 Groundwater Rule TT Yes No — — — Resolved Aug 31, 2022 Ground Water Rule
Aug 1, 2022 Aug 31, 2022 Groundwater Rule TT Yes No — — — Resolved Aug 31, 2022 Ground Water Rule
Aug 27, 2021 — Public Notice Other No No — — — Resolved Sep 7, 2021 Public Notice Rule and Revised PN Rule
Jun 4, 2021 — Public Notice Other No No — — — Resolved Aug 6, 2021 Public Notice Rule and Revised PN Rule
Oct 1, 2020 Dec 31, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 14, 2020 — Public Notice Other No No — — — Resolved Aug 6, 2021 Public Notice Rule and Revised PN Rule
Feb 14, 2020 — Public Notice Other No No — — — Resolved Aug 6, 2021 Public Notice Rule and Revised PN Rule
Jan 1, 2020 Mar 31, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Nov 21, 2019 — Public Notice Other No No — — — Resolved Feb 25, 2020 Public Notice Rule and Revised PN Rule
Nov 21, 2019 — Public Notice Other No No — — — Resolved Feb 25, 2020 Public Notice Rule and Revised PN Rule
Jul 1, 2019 Sep 30, 2019 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2019 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2019 Sep 30, 2019 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Sep 30, 2019 Synthetic Organic Chemicals
Jul 1, 2019 Sep 30, 2019 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Sep 30, 2019 Synthetic Organic Chemicals
Jul 1, 2019 Sep 30, 2019 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Sep 30, 2019 Synthetic Organic Chemicals
Jul 1, 2019 Sep 30, 2019 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Sep 30, 2019 Synthetic Organic Chemicals
Jul 1, 2019 Sep 30, 2019 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2019 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Dec 31, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Dec 31, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Dec 31, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Dec 31, 2018 E. COLI MR No Yes — — — Resolved Dec 31, 2018 Ground Water Rule
Oct 1, 2018 Dec 31, 2018 E. COLI MR No Yes — — — Resolved Dec 31, 2018 Ground Water Rule
Oct 1, 2018 Dec 31, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2018 Sep 30, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2018 Sep 30, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2018 Sep 30, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2018 Sep 30, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 E. COLI MR No Yes — — — Resolved Mar 31, 2017 Ground Water Rule
Jan 1, 2017 Dec 31, 2017 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2017 Nitrate Rule
Jan 1, 2017 Mar 31, 2017 E. COLI MR No Yes — — — Resolved Mar 31, 2017 Ground Water 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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