Londonderry, NH
Contamination score
Higher = more contaminated vs. other cities.
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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.
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Public water systems
Rolling Meadows Condos Iv
- PWSID:
- NH1392230
- Source:
- Ground water
- Serves:
- 42 people
Boumil Grove Condos
- PWSID:
- NH1392050
- Source:
- Ground water
- Serves:
- 72 people
Rolling Meadows Condos I
- PWSID:
- NH1392200
- Source:
- Ground water
- Serves:
- 88 people
Pinehaven Water Trust
- PWSID:
- NH1392040
- Source:
- Ground water
- Serves:
- 95 people
Londonderry
- PWSID:
- NH1391010
- Source:
- Surface water
- Serves:
- 6,255 people
Ministerial/Parrish Hills
- PWSID:
- NH1392310
- Source:
- Ground water
- Serves:
- 305 people
Rolling Meadows Condos Iii
- PWSID:
- NH1392220
- Source:
- Ground water
- Serves:
- 50 people
Springwood Hills
- PWSID:
- NH1392260
- Source:
- Surface water
- Serves:
- 228 people
Hanafin Farm
- PWSID:
- NH1392330
- Source:
- Ground water
- Serves:
- 105 people
Avery Estates
- PWSID:
- NH1392250
- Source:
- Surface water
- Serves:
- 383 people
Brook Park Ests
- PWSID:
- NH1392060
- Source:
- Surface water
- Serves:
- 880 people
Oakridge Condos
- PWSID:
- NH1392010
- Source:
- Ground water
- Serves:
- 250 people
Southview Condos
- PWSID:
- NH1392300
- Source:
- Ground water
- Serves:
- 38 people
Ponderosa MHP
- PWSID:
- NH1393060
- Source:
- Ground water
- Serves:
- 110 people
Bitim Apartments
- PWSID:
- NH1392320
- Source:
- Ground water
- Serves:
- 28 people
Olde Country Village
- PWSID:
- NH1392030
- Source:
- Ground water
- Serves:
- 130 people
Harvest Village
- PWSID:
- NH1392290
- Source:
- Ground water
- Serves:
- 185 people
EPA & DEP violations
Brook Park Ests
PWSID NH13920602 violationsMonitoring violation — BROOK PARK ESTS
low severityResolvedEPA SDWIS violation 1800005 (code 27) at BROOK PARK ESTS (PWSID NH1392060).
EPA SDWIS · Monitoring violation · Began Apr 1, 2018 · 8 years ago · Source ↗
Monitoring violation — BROOK PARK ESTS
low severityResolvedEPA SDWIS violation 0800002 (code 52) at BROOK PARK ESTS (PWSID NH1392060).
EPA SDWIS · Monitoring violation · Began Oct 1, 2006 · 19 years ago · Source ↗
City-wide
20 violationsLead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2024 · 1 year ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Jan 2, 2024 · 2 years ago · Source ↗
Combined Radium (-226 and -228) — MCL violation
high severityHealth-basedResolvedCombined Radium (-226 and -228) MCL violation (Resolved).
EPA SDWIS · MCL · Began Jan 1, 2022 · 4 years ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2021 · 4 years ago · Source ↗
Revised Total Coliform Rule — RPT violation
medium severityResolvedRevised Total Coliform Rule RPT violation (Resolved).
EPA SDWIS · RPT · Began Aug 9, 2021 · 5 years ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityResolvedRevised Total Coliform Rule MON violation (Resolved).
EPA SDWIS · MON · Began Apr 1, 2021 · 5 years ago · Source ↗
Revised Total Coliform Rule — RPT violation
medium severityResolvedRevised Total Coliform Rule RPT violation (Resolved).
EPA SDWIS · RPT · Began Apr 1, 2021 · 5 years ago · Source ↗
Nitrate — MCL violation
high severityHealth-basedResolvedNitrate MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2020 · 5 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Apr 1, 2020 · 6 years ago · Source ↗
Gross Alpha, Excl. Radon and U — MCL violation
high severityHealth-basedResolvedGross Alpha, Excl. Radon and U MCL violation (Resolved).
EPA SDWIS · MCL · Began Jan 1, 2020 · 6 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Jan 1, 2020 · 6 years ago · Source ↗
Revised Total Coliform Rule — RPT violation
medium severityResolvedRevised Total Coliform Rule RPT violation (Resolved).
EPA SDWIS · RPT · Began Dec 10, 2019 · 6 years ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityResolvedRevised Total Coliform Rule MON violation (Resolved).
EPA SDWIS · MON · Began Nov 1, 2019 · 6 years ago · Source ↗
Gross Alpha, Excl. Radon and U — MCL violation
high severityHealth-basedResolvedGross Alpha, Excl. Radon and U MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2019 · 6 years ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2019 · 6 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2019 · 6 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Sep 22, 2019 · 6 years ago · Source ↗
E. COLI — MR violation
medium severityResolvedE. COLI MR violation (Resolved).
EPA SDWIS · MR · Began Sep 7, 2019 · 6 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Jul 25, 2019 · 7 years ago · Source ↗
Revised Total Coliform Rule — RPT violation
medium severityResolvedRevised Total Coliform Rule RPT violation (Resolved).
EPA SDWIS · RPT · Began Jul 1, 2019 · 7 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.