CITY REPORT OH HEALTH VIOLATIONS: 1

Williamsburg, OH: 1 Health Violation - Home Safety 61/100

1 ZIP code · 5 water systems · Updated

ZipCheckup grade for Williamsburg: C.

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

Williamsburg, OH holds a middle-tier grade; review the underlying water system records for the reasons behind it.

How Williamsburg Compares

Williamsburg61/100
Ohio avg60/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs Linked to Systems with Violations
C · 61
Avg Safety Score
Zone 2
County Radon Potential (Moderate)
$197K
Median Home Value
$800
Est. Remediation (0.4% of home value)

Williamsburg Water: The Quick Version

  • Your city's water systems recorded 8 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0026 mg/L.
  • Homes built before 1986: 52% - older plumbing may contain lead solder.
  • Estimated remediation: $800 per household.
  • Health risk index (ZipCheckup composite of CDC data): 13.51.

Water Systems Serving Williamsburg

Multiple utilities show up for Williamsburg, OH: 3 are listed here out of 5 tracked federally.

Overview

We track home safety data for 1 ZIP code in Williamsburg, Ohio (population ~9,813), covering 5 community water systems serving approximately 205,756 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 Williamsburg: C (61/100)

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

Williamsburg water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0026 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 2.

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 10 1
Haloacetic Acids (HAA5) Disinfection Byproducts 2 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1
Lead and Copper Rule Revisions Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
45176 C 8 1 Williamsburg Village Public Water System

All ZIP Codes in Williamsburg

  • 45176 [C] - 8 violations ⚠

Data Sources

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

CDC Health Data for Williamsburg

10.6%
Asthma (US: 9.8%)
12.6%
Diabetes (US: 10.4%)
17.2%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 10.6% ↑
Diabetes 12.6% ↑
Mental Health 17.2% ↑

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

Key Contaminants Detected in Williamsburg

Consumer Confidence Rule 10 violations
Reporting
Haloacetic Acids (HAA5) 2 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.06 mg/L
Increased cancer risk with long-term exposure above the MCL
Total Trihalomethanes (TTHM) 2 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.08 mg/L
Increased cancer risk with long-term exposure above the MCL

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

How Old Is Williamsburg's Housing Stock?

1985
Median Build Year
52%
Built Before 1986
30%
Built Before 1970
Copper
Likely Pipe Material

With 52% 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

Plumbing risk in older housing is tied to the period before 1986, when lead pipes and lead solder were still permitted in new plumbing. Williamsburg's median build year is 1985, and properties from before that year might still contain lead-bearing joints or pipes. Much of that risk sits inside individual properties, which city-level water quality averages don't capture.

1985
Median Year Built
52%
Pre-1986 (lead solder era; lead paint banned 1978)
30%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (30%) 1970–1986 (22%) Post-1986 (48%)

Over half of homes in Williamsburg 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.

Williamsburg: Remediation Cost in Perspective

Because the median home value in Williamsburg is large relative to the estimated cost of remediation, the ratio between them stays at or below 1%; that is a statement about two area-level numbers, not a quote for a particular house or a judgment about what an owner can pay.

Median Home Value
$197,400
Est. Remediation
$800
Remediation as % of home value 0.4%

Estimated remediation costs in Williamsburg can be compared with local home values. The $450–$1,400 estimated range can be set against the median property value; actual costs vary by home. Home values are 7% above the Ohio average.

Protecting Children from Lead in Williamsburg

52%
Homes Built Before 1986
0.0026
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 Williamsburg

7
Total FEMA Flood Claims
$99,641
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Williamsburg contains 7 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $99,641. 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 $800 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 Williamsburg

  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 Williamsburg: 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 52% of homes built before 1986, lead solder is a real possibility.

Frequently Asked Questions

What does the Home Safety Score mean for Williamsburg, OH?
Williamsburg has an average Home Safety Score of 61/100 (Grade C) 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. 8 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 Williamsburg?
EPA records list 8 EPA violations, including 1 health-based violation for Williamsburg water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Williamsburg water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Williamsburg is 0.0026 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 Williamsburg compare to Ohio average?
Williamsburg has an average Home Safety Score of 61/100, which is at or above the Ohio state average of 60/100 for the same model series.
How many water systems serve Williamsburg?
Our records map 5 water systems to 1 ZIP code in Williamsburg. The related population figure in our data is approximately 9,813 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Williamsburg?
Estimated remediation cost per household in Williamsburg: $800; modeled range $450 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). Williamsburg, OH: 1 Health Violation - Home Safety 61/100. https://zipcheckup.com/cities/oh/williamsburg/
BibTeX
@misc{zipcheckup-cities-oh-williamsburg,
  author = {{ZipCheckup}},
  title  = {{Williamsburg, OH: 1 Health Violation - Home Safety 61/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/oh/williamsburg/}
}

Page version: October 2026.

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