CITY REPORT MA

Nantucket, MA: 8 Violations - Home Safety Score unavailable

2 ZIP codes · 2 water systems · Updated

Data: EPA SDWIS

2
ZIP Codes
2
Water Systems
1
ZIPs with Violations
Zone 2
Radon Risk (Moderate)
$1.4M
Median Home Value
$2,200
Est. Remediation (0.2% of home value)

Key Facts for Nantucket Residents

  • Your city's water systems recorded 8 violations in the past 5 years.
  • Average lead level: 0.002 mg/L.
  • Homes built before 1986: 57% - older plumbing may contain lead solder.
  • Estimated remediation: $2,200 per household.
  • CDC health risk index: 10.43.

Nantucket's Water Providers

Multiple utilities divide Nantucket, MA's water service - 2 leading providers among 2 on the federal register.

Overview

We track home safety data for 2 ZIP codes in Nantucket, Massachusetts (population ~14,056), covering 2 community water systems serving approximately 30,703 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 2 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

Nantucket water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0020 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 2 (Moderate Risk)

  • Zone 1 (High): 0 ZIP codes
  • Zone 2 (Moderate): 2 ZIP codes
  • Zone 3 (Low): 0 ZIP codes

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

Top Contaminants

Contaminant Category Violations ZIPs Affected
Surface Water Treatment Rule Treatment Technique 8 1
Lead Inorganic 4 1
Copper Inorganic 2 1
Stage 1 DBP Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
02554 8 0 Wannacomet Water Company

All ZIP Codes in Nantucket

Data Sources

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

Nantucket Community Health Snapshot

10.9%
Asthma (US: 9.8%)
8.6%
Diabetes (US: 10.4%)
14.3%
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 10.9% ↑
Diabetes 8.6% ↓
Mental Health 14.3% ↓

Vertical line = national average. Above national · Below national

What's in Nantucket's Water?

Surface Water Treatment Rule 8 violations
Treatment Technique
Pathogens may not be adequately removed
Lead 4 violations
Inorganic · EPA limit: 0.015 mg/L
Copper 2 violations
Inorganic · EPA limit: 1.3 mg/L
Gastrointestinal distress, liver/kidney damage

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

Nantucket Infrastructure Age

1986
Median Build Year
57%
Built Before 1986
13%
Built Before 1970
Copper
Likely Pipe Material

With 57% 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

The median home in Nantucket was built in 1986 - a figure that places most of the city's residential stock in the era when lead solder was still standard in copper plumbing. Homes built before 1986 may have lead-soldered joints; those built before 1970 face the additional possibility of lead pipes in the service line itself.

1986
Median Year Built
57%
Pre-1986 (Lead Paint Risk)
13%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (13%) 1970–1986 (44%) Post-1986 (43%)

Over half of homes in Nantucket 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 Nantucket

In Nantucket, the equity impact of remediation is proportionally small - not the kind of financial commitment that rises to the level of a genuine planning constraint, but a minor share of what most properties here are worth.

Median Home Value
$1.4M
Est. Remediation
$2,200
Remediation as % of home value 0.2%

Remediation costs in Nantucket are relatively low compared to home values. The $1,200–$3,300 estimated range is a small fraction of median property value. Home values are 147% above the Massachusetts average.

Nantucket: Lead Risk & Vulnerable Populations

57%
Homes Built Before 1986
0.002
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.

Older interior plumbing shapes the local picture: 57% of Nantucket homes predate the federal solder ban, and aggregate sampling either approaches or crosses the action benchmark. That mix makes a single-home draw a standard pre-purchase or pre-occupancy step.

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

Nantucket: NFIP Claim Records and Water-Quality Context

542
Total FEMA Flood Claims
$35,729
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Nantucket contains 542 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $35,729. 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>$2,200</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 Nantucket have?
Nantucket water systems have a total of 8 EPA violations. Violations are tracked across 2 ZIP codes.
Does Nantucket water have lead?
The average 90th-percentile lead level in Nantucket is 0.002 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 Nantucket?
Nantucket is served by 2 public water systems across 2 ZIP codes, serving approximately 14,056 people.
How much does it cost to fix water issues in Nantucket?
Estimated remediation costs in Nantucket average $2,200 per household, ranging from $1,200 to $3,300. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesMassachusetts → Nantucket, MA

How to cite this page

APA ZipCheckup. (2026). Nantucket, MA: 8 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/ma/nantucket/
BibTeX
@misc{zipcheckup-cities-ma-nantucket,
  author = {{ZipCheckup}},
  title  = {{Nantucket, MA: 8 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ma/nantucket/}
}

Page version: August 2026.

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