Historical Compliance Records NH

Merrimack Village District

EPA ID: NH1531010 ยท 25,500 people served ยท 1 ZIP code

ZipCheckup's reading of EPA records for Merrimack Village District (NH1531010): 25 violations on record since 2021. Per the federal file, all 25 violations logged for Merrimack Village District carry a resolved status, and around 25,500 people get water from this system.

Data: EPA SDWIS

B ยท 75
Avg Safety Score
25,500
People Served
1
ZIP Code Served
25
Violations (since 2021)
Groundwater
Water Source
Below the reporting limit
Most recent lead 90th percentile on record (monitoring period ending 2024-06-30)
Zone 2
County Radon Potential ยท Moderate
25
Contaminants Flagged
$406K
Median Home Value in ZIP Codes Served

Service Area Map

Coverage area for Merrimack Village District Source: EPA SDWIS service area boundaries.

Service area boundary - average Home Safety grade of mapped ZIPs: B

Demographics of ZIP Codes Served

$128,897
Median Household Income
27,604
Population of ZIP Codes Served (Census)
18%
Disadvantaged Population
30th
Poverty Percentile
60th
Energy Burden Percentile
56%
Pre-1986 Housing

The ZIP codes associated with Merrimack Village District have a median household income of $128,897 and about 27,604 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 56% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

๐Ÿ’ง Where Does Your Water Come From?

Groundwater

Merrimack Village District's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.

Moderate Risk
Source Contamination Risk
40th
Wastewater Discharge Proximity
70th
Superfund Site Proximity

Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.

Infrastructure Risk

41 yr
Estimated pipe age (modeled from housing age)
Copper
Likely pipe material (modeled)
29 yr
Est. Remaining Life
Stable
Decay Status
Installed 59% of expected lifespan used (estimate) End of life

Comparable Water Systems

Similar-sized systems in New Hampshire

1 violation
Dover Water Department
29,000 people
1 violation
Salem Water Department
21,000 people
C 2 violations
Keene Water Department
30,000 people
B 0 violations
Portsmouth Water Works
33,000 people
C 0 violations

Cost of Inaction

Illustrative per-household cost scenario based on stated assumptions:

Estimated Healthcare Costs $1,500

Annual per household (ZipCheckup estimate)

Estimated Cumulative Cost Per Household

5 years
$7,500
10 years
$15,000
20 years
$30,000

Individual costs vary by household size, property, and health factors. These estimates are for awareness, not financial advice.

System Overview

Merrimack Village District (EPA ID: NH1531010) is a community water system in New Hampshire that serves approximately 25,500 people from groundwater sources.

This system serves ZIP code 03054 in Merrimack.

ZIP-Area Home Safety Context: B (75/100)

This is the average Home Safety Score for 1 of 1 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.

Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.

Violation History

No current noncompliance in the accepted 2026Q2 snapshot. The 25 records in the 2021-2026 window are classified as resolved or archived, not current.

Status breakdown for accepted records with record years 2021-2026: 25 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Date Contaminant Type Status
July 1, 2021 Chlorine Non-health-based Resolved
January 1, 2021 Combined Radium (-226 and -228) Non-health-based Resolved
January 1, 2021 Gross Alpha Non-health-based Resolved
January 1, 2021 Combined Uranium Non-health-based Resolved
January 1, 2021 1,2,4-Trichlorobenzene Non-health-based Resolved
January 1, 2021 cis-1,2-Dichloroethylene Non-health-based Resolved
January 1, 2021 Xylenes, Total Non-health-based Resolved
January 1, 2021 DICHLOROMETHANE Non-health-based Resolved
January 1, 2021 o-Dichlorobenzene Non-health-based Resolved
January 1, 2021 p-Dichlorobenzene Non-health-based Resolved
January 1, 2021 Vinyl chloride Non-health-based Resolved
January 1, 2021 1,1-Dichloroethylene Non-health-based Resolved
January 1, 2021 trans-1,2-Dichloroethylene Non-health-based Resolved
January 1, 2021 1,2-Dichloroethane Non-health-based Resolved
January 1, 2021 1,1,1-Trichloroethane Non-health-based Resolved
January 1, 2021 Carbon tetrachloride Non-health-based Resolved
January 1, 2021 1,2-Dichloropropane Non-health-based Resolved
January 1, 2021 Trichloroethylene Non-health-based Resolved
January 1, 2021 1,1,2-Trichloroethane Non-health-based Resolved
January 1, 2021 Tetrachloroethylene Non-health-based Resolved

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Contaminant Category Violations Health-Based
1,2,4-Trichlorobenzene Monitoring & Reporting 1 No
cis-1,2-Dichloroethylene Monitoring & Reporting 1 No
Xylenes, Total Monitoring & Reporting 1 No
DICHLOROMETHANE Monitoring & Reporting 1 No
o-Dichlorobenzene Monitoring & Reporting 1 No
p-Dichlorobenzene Monitoring & Reporting 1 No
Vinyl chloride Monitoring & Reporting 1 No
1,1-Dichloroethylene Monitoring & Reporting 1 No
trans-1,2-Dichloroethylene Monitoring & Reporting 1 No
1,2-Dichloroethane Monitoring & Reporting 1 No
1,1,1-Trichloroethane Monitoring & Reporting 1 No
Carbon tetrachloride Monitoring & Reporting 1 No
1,2-Dichloropropane Monitoring & Reporting 1 No
Trichloroethylene Monitoring & Reporting 1 No
1,1,2-Trichloroethane Monitoring & Reporting 1 No

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

Lead Level Exceeds Action Level Sample Date
Below the reporting limit No 2024-06-30

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Radon Risk in Service Area

1 of 1 ZIP records with known zones is in EPA Radon Zone 2.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by NH or modeled from parcel and building-footprint data.

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Merrimack Village District (NH1531010) on EPA.gov.

Frequently Asked Questions

Is Merrimack Village District water safe to drink?

The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Merrimack Village District; its 25 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.

How many people does Merrimack Village District serve?

Merrimack Village District serves approximately 25,500 people across 1 ZIP code in New Hampshire.

Where does Merrimack Village District get its water?

The primary water source is groundwater.

Federal UCMR5 PFAS Monitoring: No PFAS Reported Above Reporting Levels

This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were reported above UCMR5 minimum reporting levels.

Samples collected
174

EPA's April 2024 PFAS rule sets MCLs of 4 ppt for PFOA and PFOS and 10 ppt for PFHxS, PFNA and HFPO-DA (GenX); water systems must comply from 2029. Other PFAS compounds have no individual federal MCL. A state standard is shown only where this system's state has its own enforceable PFAS limit. Detection results are EPA UCMR5 samples, not a measurement at your tap.

Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) โ€” per-system federal sampling, 2023โ€“2025. EPA UCMR5 monitoring program โ†’

Understand PFAS health context and filtration โ†’

How Water Systems Appear in Rankings

Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.

Frequently Asked Questions

Is water from Merrimack Village District safe to drink? ▼
Merrimack Village District has 25 recorded violations since 2021. The B shown is a ZIP-area score, not a grade for this utility; see the violation table for what was violated.
Should I use a water filter? ▼
Given 25 recorded violations, review the violation types and dates; a filter certified for a specific contaminant of concern can reduce that contaminant at the tap. Monitoring or reporting violations are not something a filter addresses.
How many people does Merrimack Village District serve? ▼
Merrimack Village District serves approximately 25,500 people with drinking water across 1 ZIP code.
What is Merrimack Village District's water source? ▼
Merrimack Village District draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
Is there lead in Merrimack Village District's water? ▼
The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero. This is at or below the EPA lead action level, which triggers system action and is not a safe level; the EPA health goal for lead is zero.
What is the demographic profile of the ZIP codes associated with Merrimack Village District? ▼
The ZIP codes mapped to Merrimack Village District have a median household income of $128,897 (Census ZIP-code estimate). Demographic data is sourced from the U.S. Census Bureau and EPA EJScreen.
Where does Merrimack Village District get its water? ▼
Merrimack Village District's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table. Based on the available data, the modeled source-contamination category is moderate; test local water to assess actual exposure.

How to cite this page

APA ZipCheckup. (n.d.). Merrimack Village District (NH): 25 EPA Violations. https://zipcheckup.com/water-system/nh1531010/
BibTeX
@misc{zipcheckup-water-system-nh1531010,
  author = {{ZipCheckup}},
  title  = {{Merrimack Village District (NH): 25 EPA Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/nh1531010/}
}

What You Can Do

1

Test your water

Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter โ†’

2

Check your specific ZIP code

Water quality can vary within a system. View nearest ZIP report โ†’

3

Contact your utility

Merrimack Village District (EPA ID: NH1531010) - request the latest Consumer Confidence Report or ask about specific contaminants.

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