N

North Stonington, CT

A27/100

Contamination score

Higher = more contaminated vs. other cities.

⚠️7 health-based violations on record.
0
Water sources
58
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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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

Northstone Gardens

PWSID:
CT1021001
Source:
Ground water
Serves:
79 people

Scwa, Cedar Ridge Division

PWSID:
CT1020011
Source:
Ground water
Serves:
370 people

Scwa, North Stonington Division (Nst)

PWSID:
CT1020021
Source:
Ground water
Serves:
1,860 people

EPA & DEP violations

Northstone Gardens

PWSID CT102100138 violations

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389167 (code 66) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2021 · 5 years ago · Source ↗

  • Other violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389166 (code 75) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Other violation · Began Jan 16, 2021 · 5 years ago · Source ↗

  • Reporting violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389163 (code 4A) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Reporting violation · Began Nov 28, 2019 · 6 years ago · Source ↗

  • Other violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389162 (code 75) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Other violation · Began Jan 4, 2019 · 7 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389160 (code 34) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Sep 24, 2018 · 7 years ago · Source ↗

  • Treatment technique violation — NORTHSTONE GARDENS

    high severityHealth-basedResolved

    EPA SDWIS violation 389161 (code 2A) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Treatment technique violation · Began Sep 2, 2018 · 7 years ago · Source ↗

  • Reporting violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389157 (code 4B) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Reporting violation · Began Jul 10, 2018 · 8 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityOpen

    EPA SDWIS violation 389151 (code 34) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Feb 5, 2018 · 8 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389158 (code 66) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Dec 30, 2017 · 8 years ago · Source ↗

  • Treatment technique violation — NORTHSTONE GARDENS

    high severityHealth-basedResolved

    EPA SDWIS violation 389159 (code 48) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Treatment technique violation · Began Nov 6, 2017 · 8 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389146 (code 3A) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2017 · 8 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389139 (code 34) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Sep 4, 2017 · 8 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389140 (code 34) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Aug 7, 2017 · 9 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389142 (code 34) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Jul 14, 2017 · 9 years ago · Source ↗

  • Other violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389143 (code 75) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Other violation · Began Jul 12, 2017 · 9 years ago · Source ↗

  • Other violation — NORTHSTONE GARDENS

    low severityOpen

    EPA SDWIS violation 389144 (code 76) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Other violation · Began Jul 10, 2017 · 9 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389141 (code 34) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Jul 7, 2017 · 9 years ago · Source ↗

  • Other violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389145 (code 71) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Other violation · Began Jul 1, 2017 · 9 years ago · Source ↗

  • MCL exceedance — NORTHSTONE GARDENS

    high severityHealth-basedResolved

    EPA SDWIS violation 389138 (code 1A) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · MCL exceedance · Began Jun 1, 2017 · 9 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389137 (code 3A) at NORTHSTONE GARDENS (PWSID CT1021001).

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

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389132 (code 34) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Oct 31, 2016 · 9 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389130 (code 34) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Sep 21, 2016 · 9 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389131 (code 34) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Jul 27, 2016 · 10 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389124 (code 52) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2014 · 11 years ago · Source ↗

  • Other violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389122 (code 75) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Other violation · Began May 12, 2013 · 13 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389121 (code 34) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Dec 25, 2012 · 13 years ago · Source ↗

  • Other violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389118 (code 72) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Other violation · Began Aug 10, 2012 · 14 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389114 (code 34) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Aug 5, 2010 · 16 years ago · Source ↗

  • Other violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389113 (code 71) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Other violation · Began Jul 1, 2010 · 16 years ago · Source ↗

  • Other violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389112 (code 75) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Other violation · Began Apr 9, 2010 · 16 years ago · Source ↗

  • Other violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389107 (code 71) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Other violation · Began Jul 1, 2007 · 19 years ago · Source ↗

  • Other violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 389005 (code 72) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Other violation · Began Aug 10, 2004 · 22 years ago · Source ↗

  • Other violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 388905 (code 71) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Other violation · Began Jul 1, 2004 · 22 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 9897 (code 51) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Jan 1, 1996 · 30 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 86297 (code 51) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Jul 1, 1995 · 31 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 86197 (code 51) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Jan 1, 1995 · 31 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 311397 (code 51) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Jul 1, 1994 · 32 years ago · Source ↗

  • Monitoring violation — NORTHSTONE GARDENS

    low severityResolved

    EPA SDWIS violation 11497 (code 51) at NORTHSTONE GARDENS (PWSID CT1021001).

    EPA SDWIS · Monitoring violation · Began Jan 1, 1994 · 32 years ago · Source ↗

City-wide

20 violations

  • Revised Total Coliform Rule — TT violation

    high severityHealth-basedUnaddressed

    Revised Total Coliform Rule TT violation (Unaddressed).

    EPA SDWIS · TT · Began Dec 5, 2025 · 8 months ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityUnaddressed

    Lead and Copper Rule MR violation (Unaddressed).

    EPA SDWIS · MR · Began Oct 1, 2024 · 1 year ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Dec 30, 2022 · 3 years ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Apr 1, 2021 · 5 years ago · Source ↗

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Jan 16, 2021 · 5 years ago · Source ↗

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

    EPA SDWIS · RPT · Began Nov 28, 2019 · 6 years ago · Source ↗

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Jan 4, 2019 · 7 years ago · Source ↗

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

    EPA SDWIS · MR · Began Sep 24, 2018 · 7 years ago · Source ↗

  • Revised Total Coliform Rule — TT violation

    high severityHealth-basedResolved

    Revised Total Coliform Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Sep 2, 2018 · 7 years ago · Source ↗

  • Revised Total Coliform Rule — MCL violation

    high severityHealth-basedResolved

    Revised Total Coliform Rule MCL violation (Resolved).

    EPA SDWIS · MCL · Began Sep 1, 2018 · 7 years ago · Source ↗

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

    EPA SDWIS · RPT · Began Jul 10, 2018 · 8 years ago · Source ↗

  • E. COLI — MR violation

    medium severityUnaddressed

    E. COLI MR violation (Unaddressed).

    EPA SDWIS · MR · Began Feb 5, 2018 · 8 years ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Dec 30, 2017 · 8 years ago · Source ↗

  • Groundwater Rule — TT violation

    high severityHealth-basedResolved

    Groundwater Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Nov 6, 2017 · 8 years ago · Source ↗

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

    EPA SDWIS · MON · Began Oct 1, 2017 · 8 years ago · Source ↗

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

    EPA SDWIS · MR · Began Sep 4, 2017 · 8 years ago · Source ↗

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

    EPA SDWIS · MR · Began Aug 7, 2017 · 9 years ago · Source ↗

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

    EPA SDWIS · RPT · Began Jul 15, 2017 · 9 years ago · Source ↗

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

    EPA SDWIS · MR · Began Jul 14, 2017 · 9 years ago · Source ↗

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

    EPA SDWIS · RPT · Began Jul 13, 2017 · 9 years ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.