A

Ansonia, CT

A33/100

Contamination score

Higher = more contaminated vs. other cities.

0
Water sources
78
Violations
0
Pollution sources
0
Self-reported
0
Lawsuits

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Reported illness & cancer claims

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Self-reported issues

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Pollution sources & reported claims near your water

Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.

Critical High Medium Reported claim

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Public water systems

Regional Water Authority

PWSID:
CT0930011
Source:
Surface water
Serves:
418,900 people

Aquarion-Valley

PWSID:
CT1240011
Source:
Surface water
Serves:
13,080 people

EPA & DEP violations

Regional Water Authority

PWSID CT093001177 violations

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Dec 30, 2020 · 5 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51080 (code 66) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Dec 30, 2020 · 5 years ago · Source ↗

  • CARBON, TOTAL — MR violation

    medium severityArchived

    CARBON, TOTAL MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityOpen

    EPA SDWIS violation 51068 (code 27) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2017 · 9 years ago · Source ↗

  • Consumer Confidence Rule — Other violation

    medium severityResolved

    Consumer Confidence Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Aug 10, 2015 · 11 years ago · Source ↗

  • Other violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51013 (code 72) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Other violation · Began Aug 10, 2015 · 11 years ago · Source ↗

  • 1,2,4-Trichlorobenzene — MR violation

    medium severityResolved

    1,2,4-Trichlorobenzene MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • cis-1,2-Dichloroethylene — MR violation

    medium severityResolved

    cis-1,2-Dichloroethylene MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • DICHLOROMETHANE — MR violation

    medium severityResolved

    DICHLOROMETHANE MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • p-Dichlorobenzene — MR violation

    medium severityResolved

    p-Dichlorobenzene MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Vinyl chloride — MR violation

    medium severityResolved

    Vinyl chloride MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • 1,1-Dichloroethylene — MR violation

    medium severityResolved

    1,1-Dichloroethylene MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Carbon tetrachloride — MR violation

    medium severityResolved

    Carbon tetrachloride MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Trichloroethylene — MR violation

    medium severityResolved

    Trichloroethylene MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Toluene — MR violation

    medium severityResolved

    Toluene MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Ethylbenzene — MR violation

    medium severityResolved

    Ethylbenzene MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Styrene — MR violation

    medium severityResolved

    Styrene MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Nitrate — MR violation

    medium severityResolved

    Nitrate MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Nitrite — MR violation

    medium severityResolved

    Nitrite MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Nitrate — MR violation

    medium severityResolved

    Nitrate MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Nitrite — MR violation

    medium severityResolved

    Nitrite MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • o-Dichlorobenzene — MR violation

    medium severityResolved

    o-Dichlorobenzene MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51014 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51015 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51016 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51017 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51018 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51019 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51020 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51021 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51022 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51023 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51024 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51025 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51026 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51027 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51028 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51029 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51030 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51031 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51032 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51033 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51034 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51035 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51036 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51037 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51038 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51039 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51040 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51041 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51042 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51043 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51044 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51045 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51046 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51047 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51048 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51049 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51050 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51051 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51052 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51053 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51054 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51055 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51056 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51057 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51058 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51059 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51060 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51061 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51062 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51063 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51064 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51065 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51066 (code 03) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Monitoring violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 51067 (code 66) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Monitoring violation · Began Dec 30, 2014 · 11 years ago · Source ↗

  • Other violation — REGIONAL WATER AUTHORITY

    low severityResolved

    EPA SDWIS violation 50309 (code 72) at REGIONAL WATER AUTHORITY (PWSID CT0930011).

    EPA SDWIS · Other violation · Began Aug 10, 2008 · 18 years ago · Source ↗

Aquarion-Valley

PWSID CT12400111 violation

  • Consumer Confidence Rule — Other violation

    medium severityResolved

    Consumer Confidence Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Jul 1, 2018 · 8 years ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.