Historical Compliance Records NH

Merrimack Village District

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

ZipCheckup's reading of EPA SDWIS for Merrimack Village District (NH1531010): 25 EPA violations in the last five years. Five years tracked: Merrimack Village District had 25 violations, all cleared, 25,500 served.

Data: EPA SDWIS

B ยท 75
Avg Safety Score
25,500
People Served
1
ZIP Code Served
25
Violations (5yr)
Groundwater
Water Source
Zone 2
Radon Risk ยท Moderate
25
Contaminants Flagged
$406K
Median Home Value in Service Area

Service Area Map

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

Service area boundary - Grade B

Service Area Demographics

$128,897
Median Household Income
27,604
Service Area Population
18%
Disadvantaged Population
30th
Poverty Percentile
60th
Energy Burden Percentile
56%
Pre-1986 Housing

The Merrimack Village District serves a community with a median household income of $128,897 and an estimated 27,604 residents across its service area. 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 pumped from underground aquifers. 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
Avg Pipe Age
Copper
Pipe Material
29 yr
Est. Remaining Life
Stable
Decay Status
Installed 59% of expected lifespan used End of life

Detected Contaminants

How Merrimack Village District compares to EPA limits

PFOA 1 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.000004 mg/L
PFNA 1 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.00001 mg/L
Chlorodibromomethane 1 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.002 mg/L
Liver cancer, brain cancer (known carcinogen)
Bromate 1 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.01 mg/L
Monochloroacetic Acid 1 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.06 mg/L

What This Means For You

PFOA at 1 mg/L exceeds the EPA maximum of 0.000004 mg/L.

PFNA at 1 mg/L exceeds the EPA maximum of 0.00001 mg/L.

Chlorodibromomethane at 1 mg/L exceeds the EPA maximum of 0.002 mg/L. Liver cancer, brain cancer (known carcinogen). Consider granular activated carbon (GAC) filtration.

Bromate at 1 mg/L exceeds the EPA maximum of 0.01 mg/L.

Monochloroacetic Acid at 1 mg/L exceeds the EPA maximum of 0.06 mg/L.

Chlorodibromomethane was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.

Find a certified water filter โ†’

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

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Flood Insurance Radon Mitigation
Flood Insurance $1,800
Radon Mitigation $400
Total Estimated Cost $2,200

Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.

Cost of Inaction

If water quality issues in this service area are not addressed, the estimated financial impact per household is:

Estimated Healthcare Costs $1,500

Annual per household (CDC est.)

Estimated Cumulative Cost Per Household

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

Compare: Estimated remediation cost is $2,200 (one-time) vs. $15,000 in estimated inaction costs over 10 years.

Estimates based on published EPA, CDC, and peer-reviewed research. Individual costs vary by household size, property, and health factors. These are conservative lower-bound estimates intended 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 Revised Total Coliform Rule Non-health-based Resolved
January 1, 2021 Gross Beta Non-health-based Resolved
January 1, 2021 Gross Alpha Non-health-based Resolved
January 1, 2021 Combined Radium Non-health-based Resolved
January 1, 2021 PFOA Non-health-based Resolved
January 1, 2021 PFNA Non-health-based Resolved
January 1, 2021 Monochloroacetic Acid Non-health-based Resolved
January 1, 2021 Dichloroacetic Acid Non-health-based Resolved
January 1, 2021 Bromodichloromethane Non-health-based Resolved
January 1, 2021 Dibromochloromethane Non-health-based Resolved
January 1, 2021 Bromoform Non-health-based Resolved
January 1, 2021 Chlorodibromomethane Non-health-based Resolved
January 1, 2021 Trichloroacetic Acid Non-health-based Resolved
January 1, 2021 Monobromoacetic Acid Non-health-based Resolved
January 1, 2021 Dibromoacetic Acid Non-health-based Resolved
January 1, 2021 Bromochloroacetic Acid Non-health-based Resolved
January 1, 2021 Bromodichloroacetic Acid Non-health-based Resolved
January 1, 2021 Chlorodibromoacetic Acid Non-health-based Resolved
January 1, 2021 Tribromoacetic Acid Non-health-based Resolved
January 1, 2021 HAA6Br Non-health-based Resolved

Contaminants Detected

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

Contaminant Category Violations Health-Based
PFOA PFAS 1 No
PFNA PFAS 1 No
Monochloroacetic Acid Disinfection Byproducts 1 No
Dichloroacetic Acid Disinfection Byproducts 1 No
Bromodichloromethane Disinfection Byproducts 1 No
Dibromochloromethane Disinfection Byproducts 1 No
Bromoform Disinfection Byproducts 1 No
Chlorodibromomethane Disinfection Byproducts 1 No
Trichloroacetic Acid Disinfection Byproducts 1 No
Monobromoacetic Acid Disinfection Byproducts 1 No
Dibromoacetic Acid Disinfection Byproducts 1 No
Bromochloroacetic Acid Disinfection Byproducts 1 No
Bromodichloroacetic Acid Disinfection Byproducts 1 No
Chlorodibromoacetic Acid Disinfection Byproducts 1 No
Tribromoacetic Acid Disinfection Byproducts 1 No

Lead & Copper

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

Lead Level Exceeds Action Level Sample Date
0 mg/L No N/A

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

Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Need help with your water quality?

Typical cost: Water test: typically $20โ€“$50 (DIY kit) ยท Professional inspection: $150โ€“$400

Find the Right Water Filter

Free tip: Let cold water run for 2 minutes before drinking โ€” this helps flush lead from your pipes.

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 the full compliance record 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: Tested Clean

This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.

Samples collected
174

Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.

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 earns a B safety grade with 25 violations in the past 5 years. Tap water meets EPA standards for most contaminants.
What contaminants are in Merrimack Village District's water?
Detected contaminants include PFOA, PFNA, Chlorodibromomethane, Bromate. Each is compared against EPA maximum contaminant levels (MCLs) in the detailed breakdown above.
Should I use a water filter?
Given 5 contaminants above EPA limits, a certified water filter can provide an extra layer of protection. The best type depends on specific contaminants in your water.
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.
What is the demographic profile of Merrimack Village District's service area?
The Merrimack Village District service area has a median household income of $128,897. 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 pumped from underground aquifers. 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 available data, the source contamination risk is moderate.

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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