D

Danville, NH

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️13 health-based violations on record.
0
Water sources
31
Violations
0
Pollution sources
0
Self-reported
0
Lawsuits

Share this with friends & family you care about ❤️

Help someone you love know what's in their water — we'll email them Danville's report. No sign-ups, no list.

Reported illness & cancer claims

No claims reported yet. Be the first to add one.

Claims are aggregated from public records and community reports and may be unverified. If you believe your illness is linked to local water, request a consultation.

Self-reported issues

No issues reported yet. Be the first to report one.

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

Get water alerts for Danville, NH

We'll email you when a new violation, lawsuit, or health report appears for Danville's water. Free, unsubscribe anytime.

Home water filtration system

Protect your home

Improve Danville's water

A certified filtration system can remove lead, PFAS, nitrates, and the contaminants flagged on this page. Get a free, no-obligation quote tailored to your home.

What are you interested in?

By submitting you agree to be contacted about water treatment options.

Public water systems

Colby Pond

PWSID:
NH0582010
Source:
Ground water
Serves:
485 people

Iron Wheel MHP

PWSID:
NH0583020
Source:
Ground water
Serves:
124 people

Rock Rimmon Cooperative

PWSID:
NH0583050
Source:
Ground water
Serves:
200 people

Cotton Farms MHP

PWSID:
NH0583030
Source:
Ground water
Serves:
390 people

Spruce Valley MHP

PWSID:
NH0583010
Source:
Ground water
Serves:
92 people

EPA & DEP violations

Cotton Farms MHP

PWSID NH058303011 violations

  • MCL exceedance — COTTON FARMS MHP

    high severityHealth-basedResolved

    EPA SDWIS violation 2300030 (code 02) at COTTON FARMS MHP (PWSID NH0583030).

    EPA SDWIS · MCL exceedance · Began Jan 1, 2023 · 3 years ago · Source ↗

  • Reporting violation — COTTON FARMS MHP

    low severityResolved

    EPA SDWIS violation 2100028 (code 4B) at COTTON FARMS MHP (PWSID NH0583030).

    EPA SDWIS · Reporting violation · Began Sep 9, 2021 · 4 years ago · Source ↗

  • Monitoring violation — COTTON FARMS MHP

    low severityResolved

    EPA SDWIS violation 2100027 (code 3A) at COTTON FARMS MHP (PWSID NH0583030).

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

  • Monitoring violation — COTTON FARMS MHP

    low severityResolved

    EPA SDWIS violation 1600026 (code 27) at COTTON FARMS MHP (PWSID NH0583030).

    EPA SDWIS · Monitoring violation · Began Jul 1, 2016 · 10 years ago · Source ↗

  • Monitoring violation — COTTON FARMS MHP

    low severityResolved

    EPA SDWIS violation 1400025 (code 34) at COTTON FARMS MHP (PWSID NH0583030).

    EPA SDWIS · Monitoring violation · Began Nov 20, 2013 · 12 years ago · Source ↗

  • Treatment technique violation — COTTON FARMS MHP

    high severityHealth-basedResolved

    EPA SDWIS violation 1300024 (code 45) at COTTON FARMS MHP (PWSID NH0583030).

    EPA SDWIS · Treatment technique violation · Began Sep 15, 2013 · 12 years ago · Source ↗

  • Other violation — COTTON FARMS MHP

    low severityResolved

    EPA SDWIS violation 1300023 (code 75) at COTTON FARMS MHP (PWSID NH0583030).

    EPA SDWIS · Other violation · Began Feb 26, 2013 · 13 years ago · Source ↗

  • Treatment technique violation — COTTON FARMS MHP

    high severityHealth-basedResolved

    EPA SDWIS violation 1300022 (code 45) at COTTON FARMS MHP (PWSID NH0583030).

    EPA SDWIS · Treatment technique violation · Began Dec 21, 2012 · 13 years ago · Source ↗

  • Treatment technique violation — COTTON FARMS MHP

    high severityHealth-basedResolved

    EPA SDWIS violation 0900019 (code 58) at COTTON FARMS MHP (PWSID NH0583030).

    EPA SDWIS · Treatment technique violation · Began Apr 1, 2009 · 17 years ago · Source ↗

  • Treatment technique violation — COTTON FARMS MHP

    high severityHealth-basedResolved

    EPA SDWIS violation 0600016 (code 57) at COTTON FARMS MHP (PWSID NH0583030).

    EPA SDWIS · Treatment technique violation · Began Oct 1, 2006 · 19 years ago · Source ↗

  • Other violation — COTTON FARMS MHP

    low severityResolved

    EPA SDWIS violation 0500013 (code 75) at COTTON FARMS MHP (PWSID NH0583030).

    EPA SDWIS · Other violation · Began Jul 31, 2005 · 21 years ago · Source ↗

City-wide

20 violations

  • Groundwater Rule — MR violation

    medium severityArchived

    Groundwater Rule MR violation (Archived).

    EPA SDWIS · MR · Began Nov 1, 2025 · 9 months ago · Source ↗

  • Groundwater Rule — MR violation

    medium severityArchived

    Groundwater Rule MR violation (Archived).

    EPA SDWIS · MR · Began Oct 1, 2025 · 10 months ago · Source ↗

  • Revised Total Coliform Rule — TT violation

    high severityHealth-basedResolved

    Revised Total Coliform Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Aug 16, 2024 · 1 year ago · Source ↗

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

    EPA SDWIS · RPT · Began Aug 16, 2024 · 1 year ago · Source ↗

  • Arsenic — MR violation

    medium severityResolved

    Arsenic MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2023 · 2 years ago · Source ↗

  • Combined Radium (-226 and -228) — MCL violation

    high severityHealth-basedResolved

    Combined Radium (-226 and -228) MCL violation (Resolved).

    EPA SDWIS · MCL · Began Jan 1, 2023 · 3 years ago · Source ↗

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

    EPA SDWIS · RPT · Began Nov 14, 2022 · 3 years ago · Source ↗

  • Revised Total Coliform Rule — TT violation

    high severityHealth-basedResolved

    Revised Total Coliform Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Nov 14, 2022 · 3 years ago · Source ↗

  • Groundwater Rule — TT violation

    high severityHealth-basedResolved

    Groundwater Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Nov 1, 2021 · 4 years ago · Source ↗

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

    EPA SDWIS · RPT · Began Sep 9, 2021 · 4 years ago · Source ↗

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

    EPA SDWIS · MON · Began Aug 1, 2021 · 5 years ago · Source ↗

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

    EPA SDWIS · RPT · Began Oct 1, 2020 · 5 years ago · Source ↗

  • Groundwater Rule — TT violation

    high severityHealth-basedResolved

    Groundwater Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Oct 1, 2019 · 6 years ago · Source ↗

  • Groundwater Rule — TT violation

    high severityHealth-basedResolved

    Groundwater Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Sep 1, 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 Dec 1, 2017 · 8 years ago · Source ↗

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

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

  • Combined Radium (-226 and -228) — MCL violation

    high severityHealth-basedResolved

    Combined Radium (-226 and -228) MCL violation (Resolved).

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

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began May 3, 2017 · 9 years ago · Source ↗

  • Gross Alpha, Excl. Radon and U — MR violation

    medium severityResolved

    Gross Alpha, Excl. Radon and U MR violation (Resolved).

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

  • Combined Uranium — MR violation

    medium severityResolved

    Combined Uranium MR violation (Resolved).

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

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.