CITY REPORT CT HEALTH VIOLATIONS: 1

Preston, CT: 1 Health Violation - Home Safety 47/100

1 ZIP code · 2 water systems · Updated

ZipCheckup grade for Preston: D.

Federal records show several conditions worth reviewing.

Your top priority: see the breakdown below and consider a certified water filter. NSF certified filters →

Because the grade blends several data sources, a D or F for Preston, CT does not by itself say which one drove it; the ZIP-level reports show the underlying data.

How Preston Compares

Preston47/100
Connecticut avg63/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs Linked to Systems with Violations
D · 47
Avg Safety Score
Zone 1
County Radon Potential (High)
$343K
Median Home Value
$900
Est. Remediation (0.3% of home value)

Preston Water: The Quick Version

  • Your city's water systems recorded 7 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0053 mg/L.
  • Homes built before 1986: 73% - older plumbing may contain lead solder.
  • Estimated remediation: $900 per household.

Water Systems Serving Preston

The 2 largest of 2 systems connected with Preston, CT are listed below.

Overview

We track home safety data for 1 ZIP code in Preston, Connecticut (population ~4,781), covering 2 community water systems serving approximately 36,713 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. 1 health-based violation appear in the available health breakdown.

Home Safety Score

Average Home Safety Score for Preston: D (47/100)

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

Preston water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0053 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

1 of 1 ZIP records with known zones is in EPA Radon Zone 1.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Consumer Confidence Rule Reporting 8 1
Lead and Copper Rule Treatment Technique 4 1
Revised Total Coliform Rule Microbiological 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
06365 D 7 1 Norwich Public Utilities

All ZIP Codes in Preston

  • 06365 [D] - 7 violations ⚠

Data Sources

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

Key Contaminants Detected in Preston

Consumer Confidence Rule 8 violations
Reporting
Lead and Copper Rule 4 violations
Treatment Technique
Developmental delays in children, kidney damage
Revised Total Coliform Rule 2 violations
Microbiological
Indicates possible bacterial contamination

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

How Old Is Preston's Housing Stock?

1978
Median Build Year
73%
Built Before 1986
49%
Built Before 1970
Copper
Likely Pipe Material

With 73% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

Viewed through the lens of construction era, Preston has a median build year of 1978; houses completed ahead of 1986 can hold lead-bearing solder or fittings.

1978
Median Year Built
73%
Pre-1986 (lead solder era; lead paint banned 1978)
49%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (49%) 1970–1986 (24%) Post-1986 (27%)

Over half of homes in Preston were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Preston: Remediation Cost in Perspective

Relative to home values, Preston remediation estimates run low.

Median Home Value
$343,200
Est. Remediation
$900
Remediation as % of home value 0.3%

Estimated remediation costs in Preston can be compared with local home values. The $550–$1,400 estimated range can be set against the median property value; actual costs vary by home. Home values are 16% below the Connecticut average.

Protecting Children from Lead in Preston

73%
Homes Built Before 1986
0.0053
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

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

Historical Flood-Claim Evidence for Preston

2
Total FEMA Flood Claims
$22,808
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Preston contains 2 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $22,808. 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 $900 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 Preston

  1. Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
  2. Install a certified water filter. For Consumer Confidence Rule, listed in the water-quality records for Preston: if it is a rule or reporting requirement rather than a contaminant, ask your utility what the record involved; for bacteria, follow any boil-water notice from your utility; for a specific chemical contaminant, check whether a filter is certified to reduce it. Not every contaminant has a consumer filter certification.
  3. Check your home's plumbing. With 73% of homes built before 1986, lead solder is a real possibility.
  4. Review your water system's CCR. If you use a community water system, request its annual Consumer Confidence Report for system-level test results or find it online.

Frequently Asked Questions

What does the Home Safety Score mean for Preston, CT?
Preston has an average Home Safety Score of 47/100 (Grade D) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 7 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Preston?
EPA records list 7 EPA violations, including 1 health-based violation for Preston water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Preston water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Preston is 0.0053 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How does Preston compare to Connecticut average?
Preston has an average Home Safety Score of 47/100, which is below the Connecticut state average of 63/100 for the same model series.
How many water systems serve Preston?
Our records map 2 water systems to 1 ZIP code in Preston. The related population figure in our data is approximately 4,781 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Preston?
Estimated remediation cost per household in Preston: $900; modeled range $550 to $1,400. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Preston, CT: 1 Health Violation - Home Safety 47/100. https://zipcheckup.com/cities/ct/preston/
BibTeX
@misc{zipcheckup-cities-ct-preston,
  author = {{ZipCheckup}},
  title  = {{Preston, CT: 1 Health Violation - Home Safety 47/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ct/preston/}
}

Page version: October 2026.

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