Colebrook Water Works
EPA ID: NH0481010 · 1,300 people served · 1 ZIP code
In the five-year tracking period, Colebrook Water Works filed 2 violations — each has been cleared, and the utility now meets all federal standards for its 1,300 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Colebrook Water Works Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Colebrook Water Works serves a community with a median household income of $51,822 and an estimated 2,740 residents across its service area. Approximately 59% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 45% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Colebrook Water Works'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.
About 1% of homes in Coos County, New Hampshire rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Detected Contaminants
How Colebrook Water Works compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 1 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Total Coliform at 1 presence exceeds the EPA maximum of presence.
Haloacetic Acids (HAA5) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
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.
System Overview
Colebrook Water Works (EPA ID: NH0481010) is a community water system in New Hampshire that serves approximately 1,300 people from groundwater sources.
This system serves ZIP code 03576 in Colebrook.
Average Home Safety Score: B (74/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 1 | No |
| Total Coliform | Microbiological | 1 | No |
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
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 $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
- 03576 — Colebrook
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Colebrook Water Works (NH0481010) on EPA.gov.
Frequently Asked Questions
Is Colebrook Water Works water safe to drink?
Colebrook Water Works has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does Colebrook Water Works serve?
Colebrook Water Works serves approximately 1,300 people across 1 ZIP code in New Hampshire.
Where does Colebrook Water Works get its water?
The primary water source is groundwater.
Frequently Asked Questions
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Colebrook Water Works (EPA ID: NH0481010) — request the latest Consumer Confidence Report or ask about specific contaminants.