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DANBURY WATER DEPARTMENT

Connecticut — Community Water System — PWSID: CT0340011

System Information

PWSIDCT0340011
System NameDANBURY WATER DEPARTMENT
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region01
Serves SchoolNo
WholesalerNo
First ReportedMar 8, 1979
Last ReportedDec 15, 2025

Location & Contact

StateConnecticut
CityDANBURY
ZIP Code06810
Address155 DEER HILL AVENUE
OrganizationDAY, DAVID M.
Phone203-797-4539

Population & Service

Population Served62,055
Service Connections11,000

Drinking Water Violations (226)

This water system has 226 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 1, 2021 Dec 31, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2021 Jul 31, 2021 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 2021 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2021 Jul 31, 2021 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 2021 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2021 Jul 31, 2021 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 2021 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2021 Jul 31, 2021 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 2021 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 30, 2020 — Lead and Copper Rule MR No No — TT — Resolved Jan 8, 2021 Lead and Copper Rule
Jul 1, 2019 Sep 30, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2019 Sep 30, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2019 Sep 30, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2019 Sep 30, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Dec 31, 2017 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Dec 31, 2017 CARBON, TOTAL MR No Yes — TT — Resolved Dec 13, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Dec 31, 2017 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Dec 31, 2017 CARBON, TOTAL MR No Yes — TT — Resolved Dec 13, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017 Jun 30, 2017 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017 Jun 30, 2017 CARBON, TOTAL MR No Yes — TT — Resolved Jun 30, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017 Jun 30, 2017 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017 Jun 30, 2017 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017 Jun 30, 2017 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017 Jun 30, 2017 CARBON, TOTAL MR No Yes — TT — Resolved Jun 30, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 — Consumer Confidence Rule Other No No — — — Resolved Jul 1, 2016 Consumer Confidence Rule
Apr 1, 2015 Jun 30, 2015 CARBON, TOTAL MR No Yes — TT — Resolved Jun 30, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 CARBON, TOTAL MR No Yes — TT — Resolved Jun 30, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 — Lead and Copper Rule MR No No — TT — Resolved Sep 30, 2014 Lead and Copper Rule
Jan 1, 2014 — Lead and Copper Rule MR No No — TT — Resolved Sep 30, 2014 Lead and Copper Rule
Jan 1, 2014 — Lead and Copper Rule MR No No — TT — Resolved Sep 30, 2014 Lead and Copper Rule
Jan 1, 2014 — Lead and Copper Rule MR No No — TT — Resolved Sep 30, 2014 Lead and Copper Rule
Jul 1, 2013 Sep 30, 2013 TTHM MR No Yes — 0.080 mg/L — Archived Sep 30, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2013 Sep 30, 2013 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Sep 30, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2012 Dec 31, 2012 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2009 Dec 31, 2009 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 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.

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