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Public water system record

Andover Village Dist

Serves an area of Merrimack County, NH · 650 people served

Federal records show 7 health-based violations and 11 monitoring/reporting issues for Andover Village Dist in the last ten years. The most serious issue in this window was a resolved Surface Water Treatment Rule violation.

  • NH0081010
  • ANDOVER
  • NH
  • 650 served

System profile

Source water Surface water
ZIP 03216
EPA system ID NH0081010

Verify this system on EPA ECHO →

Health-based violations, last 10 years
7
Resolved
7
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
11

Key facts

  • Andover Village Dist draws water from 1 surface water intake.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit), 2023.
  • Record on file since 1992, with 2 health-based violations before October 19, 2016.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Surface Water Treatment Rule
Treatment technique failure
 120 May 1, 2025 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Apr 1, 2024 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Jan 1, 2024 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jan 1, 2024 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Oct 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Jul 1, 2023 Resolved No
Surface Water Treatment Rule
Treatment technique failure
 120 Sep 1, 2022 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Public Notice
OTHER
 Dec 11, 2025 Active
Surface Water Treatment Rule
Monitoring and reporting
 Dec 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine
Monitoring and reporting
 Oct 1, 2025 Active
Haloacetic Acids (HAA5)
Monitoring and reporting
 Oct 1, 2025 Active
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Oct 1, 2025 Active
Haloacetic Acids (HAA5)
Monitoring and reporting
 Jul 1, 2025 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jul 1, 2025 Resolved
Lead and Copper Rule
Monitoring and reporting
 Jan 1, 2025 Active
Public Notice
OTHER
 Aug 1, 2024 Resolved
Public Notice
OTHER
 Feb 27, 2024 Resolved
Lead and Copper Rule
Monitoring and reporting
 Jan 1, 2023 Active

Full record since 1992

EPA's records for Andover Village Dist go back to 1992. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 68 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 10
2000s 1 57
2010 to October 18, 2016 0 1
2020s 7 11

Most recent health-based violation before October 19, 2016: Total Coliform, began June 2006, Resolved.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Jun 1, 2006 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Jan 1, 1992 Resolved

What the violations mean

Total Trihalomethanes (TTHMs)

4 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Surface Water Treatment Rule

2 incidents

The system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).

The utility had to notify customers about each of these violations.

Groundwater Rule

1 incident

The system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

Andover Village Dist draws water from 1 surface water intake.

Annual water quality report

Andover Village Dist must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by New Hampshire.

Certified drinking water labs by state EPA guidance for private wells