Hooper, WA Water Safety: 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Hooper ranks below average for tap water safety in WA — health-based violations are documented across multiple service areas in recent EPA monitoring data.
How Hooper Compares
Data: EPA SDWIS Last verified: 2026-06-03
Hooper Water: The Quick Version
- Homes built before 1986: 49% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 9.94.
Water Systems Serving Hooper
A single dominant system supplies most of Hooper, WA. That utility controls infrastructure decisions, rate structures, and EPA compliance reporting for most residential addresses served across those 1 tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in Hooper, Washington (population ~104), covering 1 community water system serving approximately 800 people region-wide.
No EPA violations recorded across any ZIP codes in Hooper — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Hooper: 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
Hooper water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Hooper
- 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 |
|---|---|---|---|
| 99333 | D | ST JOHN TOWN OF | 800 |
All ZIP Codes in Hooper
- 99333 [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.
CDC Health Data for Hooper
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
How Old Is Hooper's Housing Stock?
With 49% 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
With a median build year of 1999, Hooper's housing stock reflects a city built across multiple eras. A substantial share of homes predate 1986 — the year lead solder in plumbing was federally banned — meaning the risk from plumbing materials is unevenly distributed across the city's neighborhoods and property types.
A significant portion of Hooper's housing stock predates 1970, when lead pipes were commonly used. Residents in older homes should consider water testing.
Source: U.S. Census Bureau ACS B25034.
Hooper: Remediation Cost in Perspective
In Hooper, property wealth outpaces what documented remediation typically demands — the equity burden lands well within the low tier.
Remediation costs in Hooper are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 19% above the Washington average.
Protecting Children from Lead in Hooper
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.
Even where utility-side monitoring meets Lead and Copper Rule requirements, the 49% pre-rule share in Hooper keeps interior-plumbing variation as a household-level question that aggregate data cannot resolve.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Hooper
- 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 49% 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 Hooper, WA