CITY REPORT MA

Bolton, MA: 121 Violations - Home Safety Score unavailable

1 ZIP code · 2 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs with Violations
Zone 1
Radon Risk (High)
$722K
Median Home Value
$2,400
Est. Remediation (0.3% of home value)

What You Should Know About Bolton Water

  • Your city's water systems recorded 121 violations in the past 5 years.
  • Average lead level: 0.0027 mg/L.
  • Homes built before 1986: 52% - older plumbing may contain lead solder.
  • Estimated remediation: $2,400 per household.
  • CDC health risk index: 12.17 - above typical levels.

Who Supplies Your Water in Bolton

Residential addresses in Bolton, 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 Bolton, Massachusetts (population ~5,698), covering 2 community water systems serving approximately 20,167 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.

Water Sources

Bolton water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0027 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
PFOA PFAS 10 1
PFNA PFAS 10 1
Contaminant 2931 Other 10 1
Contaminant 2946 Other 10 1
Monochloroacetic Acid Disinfection Byproducts 10 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
01740 121 0 Hudson Water Supply

All ZIP Codes in Bolton

Data Sources

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

Health Outcomes in Bolton

12.1%
Asthma (US: 9.8%)
10.4%
Diabetes (US: 10.4%)
17.2%
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 12.1% ↑
Diabetes 10.4% ↓
Mental Health 17.2% ↑

Vertical line = national average. Above national · Below national

Top Contaminants in Bolton Water

PFOA 10 violations
PFAS · EPA limit: 0.000004 mg/L
PFNA 10 violations
PFAS · EPA limit: 0.00001 mg/L
Contaminant 2931 10 violations
Other

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

Housing & Infrastructure in Bolton

1985
Median Build Year
52%
Built Before 1986
16%
Built Before 1970
Copper
Likely Pipe Material

With 52% 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

For residents trying to assess tap water risk in Bolton, the median build year of 1985 is the starting context. It signals that a majority of homes were constructed before 1986 - the year federal rules prohibited lead solder in new plumbing - and that a significant share likely predates 1970, when lead pipes were still a common choice for residential service connections. Neither risk tier is rare in this housing inventory.

1985
Median Year Built
52%
Pre-1986 (Lead Paint Risk)
16%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (16%) 1970–1986 (36%) Post-1986 (48%)

Over half of homes in Bolton 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.

Cost Context: What Remediation Means for Bolton Homeowners

Setting Bolton 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
$722,300
Est. Remediation
$2,400
Remediation as % of home value 0.3%

Remediation costs in Bolton 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 28% above the Massachusetts average.

Lead Exposure Risk for Children in Bolton

52%
Homes Built Before 1986
0.0027
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.

52% of Bolton housing dates to the pre-rule era, alongside aggregate readings hovering at the federal action mark - household-level confirmation through a draw-test kit fits the local picture.

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

Historical NFIP Claim Context in Bolton

3
Total FEMA Flood Claims
$40,000
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Bolton contains 3 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $40,000. 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.

Frequently Asked Questions

How many water violations does Bolton have?
Bolton water systems have a total of 121 EPA violations. Violations are tracked across 1 ZIP code.
Does Bolton water have lead?
The average 90th-percentile lead level in Bolton is 0.0027 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 many water systems serve Bolton?
Bolton is served by 2 public water systems across 1 ZIP code, serving approximately 5,698 people.
How much does it cost to fix water issues in Bolton?
Estimated remediation costs in Bolton average $2,400 per household, ranging from $1,600 to $3,300. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesMassachusetts → Bolton, MA

How to cite this page

APA ZipCheckup. (2026). Bolton, MA: 121 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/ma/bolton/
BibTeX
@misc{zipcheckup-cities-ma-bolton,
  author = {{ZipCheckup}},
  title  = {{Bolton, MA: 121 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ma/bolton/}
}

Page version: August 2026.

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