CITY REPORT WA HEALTH VIOLATIONS: 1

Wapato, WA: PFAS Found in Water - Home Safety 70/100

1 ZIP code · 5 water systems · Updated

ZipCheckup grade for Wapato: B.

This ZIP has a few items worth a quick check.

In the dataset behind this page, Wapato, WA receives one of the two highest grades; read the compliance history system by system for details.

How Wapato Compares

Wapato70/100
Washington avg86/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs Linked to Systems with Violations
B · 70
Avg Safety Score
Zone 2
County Radon Potential (Moderate)
$214K
Median Home Value
$300
Est. Remediation (0.1% of home value)

Key Facts for Wapato Residents

  • Your city's water systems recorded 38 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0045 mg/L.
  • Homes built before 1986: 67% - older plumbing may contain lead solder.
  • Estimated remediation: $300 per household.
  • Health risk index (ZipCheckup composite of CDC data): 12.85.

Wapato's Water Providers

Federal records list 5 water systems tied to Wapato, WA. Of those, 3 are the primary providers, meaning service conditions, rate structures, and compliance histories can differ depending on where a property sits.

Overview

We track home safety data for 1 ZIP code in Wapato, Washington (population ~12,935), covering 5 community water systems serving approximately 19,624 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 Wapato: B (70/100)

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

Wapato water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0045 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
Revised Total Coliform Rule Microbiological 16 1
Nitrate Inorganic 8 1
Lead and Copper Rule Treatment Technique 4 1
Arsenic Inorganic 2 1
1,2,4-Trichlorobenzene Organic 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
98951 B 38 1 Wapato Waterworks

All ZIP Codes in Wapato

  • 98951 [B] - 38 violations ⚠

Data Sources

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

Wapato Community Health Snapshot

10.7%
Asthma (US: 9.8%)
12.9%
Diabetes (US: 10.4%)
17.8%
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 10.7% ↑
Diabetes 12.9% ↑
Mental Health 17.8% ↑

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

What's in Wapato's Water?

Revised Total Coliform Rule 16 violations
Microbiological
Indicates possible bacterial contamination
Nitrate 8 violations
Inorganic · EPA regulatory level for the contaminant named above: 10 mg/L
Blue baby syndrome in infants
Lead and Copper Rule 4 violations
Treatment Technique
Developmental delays in children, kidney damage

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

Wapato Infrastructure Age

1976
Median Build Year
67%
Built Before 1986
45%
Built Before 1970
Copper
Likely Pipe Material

With 67% 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, Wapato has a median build year of 1976; houses completed ahead of 1986 can hold lead-bearing solder or fittings.

1976
Median Year Built
67%
Pre-1986 (lead solder era; lead paint banned 1978)
45%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (45%) 1970–1986 (22%) Post-1986 (33%)

Over half of homes in Wapato 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.

How Remediation Costs Compare in Wapato

How large is the remediation estimate next to home prices in Wapato? Small in relative terms: it amounts to 1% of the median value or less, although the dollar figure below is still an estimate and actual costs vary by property and contractor.

Median Home Value
$214,000
Est. Remediation
$300
Remediation as % of home value 0.1%

Estimated remediation costs in Wapato can be compared with local home values. The $150–$600 estimated range can be set against the median property value; actual costs vary by home. Home values are 54% below the Washington average.

Wapato: Lead Risk & Vulnerable Populations

67%
Homes Built Before 1986
0.0045
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.

Wapato: NFIP Claim Records and Water-Quality Context

16
Total FEMA Flood Claims
$6,460
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Wapato contains 16 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $6,460. 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 $300 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

What does the Home Safety Score mean for Wapato, WA?
Wapato has an average Home Safety Score of 70/100 (Grade B) 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. 38 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 Wapato?
EPA records list 38 EPA violations, including 1 health-based violation for Wapato water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Wapato water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Wapato is 0.0045 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 Wapato compare to Washington average?
Wapato has an average Home Safety Score of 70/100, which is below the Washington state average of 86/100 for the same model series.
How many water systems serve Wapato?
Our records map 5 water systems to 1 ZIP code in Wapato. The related population figure in our data is approximately 12,935 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Wapato?
Estimated remediation cost per household in Wapato: $300; modeled range $150 to $600. 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). Wapato, WA: PFAS Found in Water - Home Safety 70/100. https://zipcheckup.com/cities/wa/wapato/
BibTeX
@misc{zipcheckup-cities-wa-wapato,
  author = {{ZipCheckup}},
  title  = {{Wapato, WA: PFAS Found in Water - Home Safety 70/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/wa/wapato/}
}

Page version: October 2026.

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