Yakima, WA: PFAS Found in Water - Home Safety 75/100
7 ZIP codes · 10 water systems · Updated
ZipCheckup grade for Yakima: B.
This ZIP has a few items worth a quick check.
Yakima, WA scores in the upper band of the ZipCheckup grade.
How Yakima Compares
Data: EPA SDWIS
What You Should Know About Yakima Water
- Your city's water systems recorded 52 violations since 2021.
- Average of reported 90th-percentile lead results: 0.0019 mg/L.
- Estimated remediation: $300 per household.
- Health risk index (ZipCheckup composite of CDC data): 12.85.
Who Supplies Your Water in Yakima
Sorted by reported population served, the top 3 of 10 public water systems mapped to Yakima, WA appear below, each with its own federal compliance record.
- B
- B
- B
Overview
We track home safety data for 7 ZIP codes in Yakima, Washington, covering 10 community water systems serving approximately 134,388 people. The EPA snapshots used for this build directly map water systems to 4 of 7 ZIP codes.
4 of 4 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. 2 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Yakima: B (75/100)
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
Yakima water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0019 mg/L (EPA action level: 0.015 mg/L)
- 0 of 4 ZIP codes with known status exceed the EPA lead action level
Radon Risk
7 of 7 ZIP records with known zones are 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 |
|---|---|---|---|
| Nitrate | Inorganic | 9 | 2 |
| Consumer Confidence Rule | Reporting | 6 | 4 |
| 1,2,4-Trichlorobenzene | Organic | 5 | 4 |
| cis-1,2-Dichloroethylene | Organic | 5 | 4 |
| Dichloromethane | Organic | 5 | 4 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 98901 | B | 27 | 1 | City of Yakima Water Division |
| 98908 | B | 26 | 1 | Nob Hill Water Association |
| 98902 | B | 21 | 0 | City of Yakima Water Division |
| 98903 | B | 21 | 0 | Union Gap Water |
All ZIP Codes in Yakima
- 98901 [B] - 27 violations ⚠
- 98902 [B] - 21 violations
- 98903 [B] - 21 violations
- 98904
- 98907
- 98908 [B] - 26 violations ⚠
- 98909
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Health Outcomes in Yakima
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
Vertical line = national average. ■ Above national · ■ Below national
Top Contaminants in Yakima Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Cost Context: What Remediation Means for Yakima Homeowners
In Yakima, estimated remediation comes to 1% or less of the median home value.
Estimated remediation costs in Yakima 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 43% below the Washington average.
Lead Exposure Risk for Children in Yakima
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.
Available area-level lead records for Yakima do not determine the lead level at an individual tap. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Yakima
Historical NFIP data for Yakima contains 176 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $10,810. Among ZIP codes with claim records, 75% 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.
Deep Dive Reports
Detailed analysis for Yakima, WA