CITY REPORT WA HEALTH VIOLATIONS: 1

Bainbridge Island, WA: 8 Violations - Home Safety 97/100

1 ZIP code · 5 water systems · Updated

ZipCheckup grade for Bainbridge Island: A.

Checked records flag no major concern; missing data is unknown.

Bainbridge Island, WA: a top-two-band grade.

How Bainbridge Island Compares

Bainbridge Island97/100
Washington avg86/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs Linked to Systems with Violations
A · 97
Avg Safety Score
1
ZIPs Mapped to a System Above the Lead Action Level
Zone 3
County Radon Potential (Low)
$1.1M
Median Home Value
$3,060
Est. Remediation (0.3% of home value)

Key Facts for Bainbridge Island Residents

  • Your city's water systems recorded 8 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.016 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average.
  • Homes built before 1986: 46% - older plumbing may contain lead solder.
  • Estimated remediation: $3,060 per household.
  • Health risk index (ZipCheckup composite of CDC data): 11.76.

Bainbridge Island's Water Providers

Service in Bainbridge Island, WA can differ by address: 5 water systems are tied to the area in federal records, and the 3 largest are listed with their violation records.

Overview

We track home safety data for 1 ZIP code in Bainbridge Island, Washington, covering 5 community water systems serving approximately 24,607 people. 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 Bainbridge Island: A (97/100)

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

Bainbridge Island water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0160 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
  • 1 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 3.

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
Revised Total Coliform Rule Microbiological 6 1
Lead and Copper Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
98110 A 8 1 City of Bainbridge Island

All ZIP Codes in Bainbridge Island

  • 98110 [A] - 8 violations ⚠

Data Sources

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

Bainbridge Island Community Health Snapshot

11.2%
Asthma (US: 9.8%)
9.8%
Diabetes (US: 10.4%)
16%
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 11.2% ↑
Diabetes 9.8% ↓
Mental Health 16% ↑

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

What's in Bainbridge Island's Water?

Consumer Confidence Rule 8 violations
Reporting
Revised Total Coliform Rule 6 violations
Microbiological
Indicates possible bacterial contamination
Lead and Copper Rule 2 violations
Treatment Technique
Developmental delays in children, kidney damage

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

Bainbridge Island Infrastructure Age

1982
Median Build Year
46%
Built Before 1986
21%
Built Before 1970
Copper
Likely Pipe Material

With 46% 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 materials follow installation dates, not medians. Bainbridge Island records a median build year of 1982, and a meaningful share of its homes date from before the 1986 federal lead restrictions.

1982
Median Year Built
46%
Pre-1986 (lead solder era; lead paint banned 1978)
21%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (21%) 1970–1986 (25%) Post-1986 (54%)

Most homes in Bainbridge Island were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Bainbridge Island

Relative to home values, Bainbridge Island remediation estimates run low.

Median Home Value
$1.1M
Est. Remediation
$3,060
Remediation as % of home value 0.3%

Estimated remediation costs in Bainbridge Island can be compared with local home values. The $1,990–$4,280 estimated range can be set against the median property value; actual costs vary by home. Home values are 130% above the Washington average.

Bainbridge Island: Lead Risk & Vulnerable Populations

1 of 1
ZIPs Mapped to a System Above the Lead Action Level
46%
Homes Built Before 1986
0.016
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.

EPA advises using only cold water for drinking and cooking, a basic precaution for Bainbridge Island households, where the ZIP-code mean of utilities' 90th-percentile lead values tops 0.015 mg/L and 46% of housing predates 1986.

1 ZIP code (100% of the city's ZIP records) is served by a water system whose 90th-percentile lead result exceeds the EPA action level of 0.015 mg/L.

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

Bainbridge Island: NFIP Claim Records and Water-Quality Context

69
Total FEMA Flood Claims
$37,842
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Bainbridge Island contains 69 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $37,842. 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 $3,060 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.

Deep Dive Reports

Detailed analysis for Bainbridge Island, WA

Frequently Asked Questions

What does the Home Safety Score mean for Bainbridge Island, WA?
Bainbridge Island has an average Home Safety Score of 97/100 (Grade A) 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 Bainbridge Island?
EPA records list 8 EPA violations, including 1 health-based violation for Bainbridge Island water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Bainbridge Island water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Bainbridge Island is 0.016 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. Lead levels can vary by home - testing is recommended especially in older properties.
How does Bainbridge Island compare to Washington average?
Bainbridge Island has an average Home Safety Score of 97/100, which is at or above the Washington state average of 86/100 for the same model series.
How many water systems serve Bainbridge Island?
Our records map 5 water systems to 1 ZIP code in Bainbridge Island. The related population figure in our data is approximately 24,607 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Bainbridge Island?
Estimated remediation cost per household in Bainbridge Island: $3,060; modeled range $1,990 to $4,280. 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). Bainbridge Island, WA: 8 Violations - Home Safety 97/100. https://zipcheckup.com/cities/wa/bainbridge-island/
BibTeX 
@misc{zipcheckup-cities-wa-bainbridge-island,
  author = {{ZipCheckup}},
  title  = {{Bainbridge Island, WA: 8 Violations - Home Safety 97/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/wa/bainbridge-island/}
}

Page version: October 2026.

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