Fairfield, WA Water Safety: 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Although conditions vary by service area, Fairfield's water systems collectively show below-average compliance within WA — health-based violations are documented throughout the city, and the overall grade reflects a pattern rather than isolated incidents.
How Fairfield Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Fairfield Residents
- Homes built before 1986: 87% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 12.04 — above typical levels.
Fairfield's Water Providers
A single utility carries the primary residential water load in Fairfield, WA — the dominant provider across 1 federally tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in Fairfield, Washington, covering 1 community water system serving approximately 1,125 people.
No EPA violations recorded across any ZIP codes in Fairfield — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Fairfield: D (53/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Fairfield water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Fairfield
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 99012 | D | REARDAN TOWN OF | 1,418 |
All ZIP Codes in Fairfield
- 99012 [D]
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
Updated daily.
Fairfield Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Fairfield Infrastructure Age
With 87% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Two dates define the high-risk tiers of residential plumbing from a lead standpoint: 1970, before which lead pipes were commonly installed for service connections, and 1986, before which lead solder was standard in copper plumbing. A median build year of 1947 places Fairfield's housing distribution well within that older risk zone. The bar chart above breaks down how much of the stock falls into each era — and the pre-1986 share alone represents more than half the residential inventory, making plumbing-era risk a defining characteristic of the local water safety picture.
Over half of homes in Fairfield were built before 1986, when lead solder was banned. 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 Fairfield
When estimated remediation is placed alongside median property values in Fairfield, the resulting ratio is low — a finding consistent with a household financial perspective where documented issues can be addressed without a meaningful impact on overall equity position, making this market one of the more favorable contexts for remediation planning.
Remediation costs in Fairfield are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 38% below the Washington average.
Fairfield: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Wherever 87% of local housing was built before solder rules changed — as is the case in Fairfield — a faucet-level sample closes the gap that aggregate utility data cannot.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Fairfield
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 87% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Fairfield, WA