CITY REPORT MA

North Chelmsford, MA: 2 Violations - Home Safety 64/100

1 ZIP code · 2 water systems · Updated

ZipCheckup grade for North Chelmsford: C.

A mixed picture - some signals here are worth your attention.

North Chelmsford, MA: mid-range safety grade, uneven compliance across service areas.

How North Chelmsford Compares

North Chelmsford64/100
Massachusetts avg70/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs with Violations
C · 64
Avg Safety Score
Zone 1
Radon Risk (High)
$478K
Median Home Value
$2,400
Est. Remediation (0.5% of home value)

Key Facts for North Chelmsford Residents

  • Your city's water systems recorded 2 violations in the past 5 years.
  • Average lead level: 0.0035 mg/L.
  • Homes built before 1986: 70% - older plumbing may contain lead solder.
  • Estimated remediation: $2,400 per household.
  • CDC health risk index: 9.88.

North Chelmsford's Water Providers

Residential addresses in North Chelmsford, MA are served by 2 primary water providers out of 2 systems in federal records. Each system maintains separate infrastructure and files its own EPA compliance reports, so service conditions are not uniform across the city.

Overview

We track home safety data for 1 ZIP code in North Chelmsford, Massachusetts (population ~9,592), covering 2 community water systems serving approximately 36,410 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for North Chelmsford: C (64/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

North Chelmsford water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0035 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 1 (High Risk)

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

Top Contaminants

Contaminant Category Violations ZIPs Affected
Stage 1 DBP Rule Treatment Technique 2 1
Surface Water Treatment Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
01863 C 2 0 North Chelmsford Water District

All ZIP Codes in North Chelmsford

  • 01863 [C] - 2 violations

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

North Chelmsford Community Health Snapshot

11.1%
Asthma (US: 9.8%)
8.5%
Diabetes (US: 10.4%)
14.8%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 11.1% ↑
Diabetes 8.5% ↓
Mental Health 14.8% ↓

Vertical line = national average. ■ Above national · ■ Below national

What's in North Chelmsford's Water?

Stage 1 DBP Rule 2 violations
Treatment Technique
Disinfection byproduct exposure risk
Surface Water Treatment Rule 2 violations
Treatment Technique
Pathogens may not be adequately removed

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

North Chelmsford Infrastructure Age

1976
Median Build Year
70%
Built Before 1986
34%
Built Before 1970
Copper
Likely Pipe Material

With 70% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

What does a median build year of 1976 mean for water safety in North Chelmsford? It means the majority of the city's residential plumbing was installed before 1986, when lead solder was federally banned, and a large share may predate 1970, when lead pipes were commonly used - making plumbing age a central variable in household-level lead risk across much of the city.

1976
Median Year Built
70%
Pre-1986 (Lead Paint Risk)
34%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (34%) 1970–1986 (36%) Post-1986 (30%)

Over half of homes in North Chelmsford were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in North Chelmsford

Setting North Chelmsford remediation figures against its property market, the resulting ratio sits comfortably in the low tier - a classification that reflects the kind of household financial position where most homeowners can identify documented issues, schedule the work, and absorb the cost without it registering as a significant budget disruption.

Median Home Value
$477,900
Est. Remediation
$2,400
Remediation as % of home value 0.5%

Remediation costs in North Chelmsford are relatively low compared to home values. The $1,600–$3,300 estimated range is a small fraction of median property value. Home values are 15% below the Massachusetts average.

North Chelmsford: Lead Risk & Vulnerable Populations

70%
Homes Built Before 1986
0.0035
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Before the federal solder ban, lead solder was a routine plumbing material, and 70% of the North Chelmsford inventory was built in that earlier era - a share large enough to move household-level reads onto the standard list.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

North Chelmsford: NFIP Claim Records and Water-Quality Context

57
Total FEMA Flood Claims
$10,619
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for North Chelmsford contains 57 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $10,619. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$2,400</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

What You Can Do in North Chelmsford

  1. Test your water at home. City-level data shows averages - your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
  2. Install a certified water filter. Filters rated for Stage 1 DBP Rule can reduce the most common contaminant found in North Chelmsford's water.
  3. Check your home's plumbing. With 70% of homes built before 1986, lead solder is a real possibility.

Deep Dive Reports

Detailed analysis for North Chelmsford, MA

Frequently Asked Questions

What does the Home Safety Score mean for North Chelmsford, MA?
North Chelmsford has an average Home Safety Score of 64/100 (Grade C) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. 2 EPA violations have been recorded. Check individual ZIP code reports for component details.
How many water violations does North Chelmsford have?
North Chelmsford water systems have a total of 2 EPA violations. Violations are tracked across 1 ZIP code.
Does North Chelmsford water have lead?
The average 90th-percentile lead level in North Chelmsford is 0.0035 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How does North Chelmsford compare to Massachusetts average?
North Chelmsford has an average Home Safety Score of 64/100, which is below the Massachusetts state average of 70/100 for the same model series.
How many water systems serve North Chelmsford?
North Chelmsford is served by 2 public water systems across 1 ZIP code, serving approximately 9,592 people.
How much does it cost to fix water issues in North Chelmsford?
Estimated remediation costs in North Chelmsford average $2,400 per household, ranging from $1,600 to $3,300. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
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How to cite this page

APA ZipCheckup. (2026). North Chelmsford, MA: 2 Violations - Home Safety 64/100. https://zipcheckup.com/cities/ma/north-chelmsford/
BibTeX 
@misc{zipcheckup-cities-ma-north-chelmsford,
  author = {{ZipCheckup}},
  title  = {{North Chelmsford, MA: 2 Violations - Home Safety 64/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ma/north-chelmsford/}
}

Page version: August 2026.

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