Londonderry, New Hampshire Water Quality Report
Water quality data for 2 water systems serving 116 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (25)
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
75
Feb 21, 2019
Resolved Violations (475)
66
Jul 1, 2021
66
Jul 1, 2021
02
Apr 1, 2020 — Jun 30, 2020
02
Apr 1, 2020 — Jun 30, 2020
02
Apr 1, 2020 — Jun 30, 2020
+ 470 more resolved violations
Frequently Asked Questions
Is Londonderry tap water safe to drink?
Londonderry's water meets all EPA maximum contaminant levels. However, 0 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Londonderry tap water?
0 contaminants have been detected in Londonderry's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Londonderry?
Install a water filter rated for the specific contaminants found in Londonderry's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Londonderry have any water quality violations?
Yes, Londonderry currently has 36 active violations. See the violations section above for details.