Bonanza, OR Water Safety: 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Across Bonanza, EPA compliance records fall well below OR averages — documented health-based violations affect multiple service areas, and the city's sustained low grade reflects a persistent pattern across reporting cycles.
How Bonanza Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Bonanza Residents
- Homes built before 1986: 48% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 14.95 — above typical levels.
Bonanza's Water Providers
A single utility carries the primary residential water load in Bonanza, OR — the dominant provider across 1 federally tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in Bonanza, Oregon, covering 1 community water system serving approximately 2,954 people.
No EPA violations recorded across any ZIP codes in Bonanza — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Bonanza: 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
Bonanza water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Bonanza
- 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 |
|---|---|---|---|
| 97623 | D | SPRAGUE RIVER WATER ASSN | 60 |
All ZIP Codes in Bonanza
- 97623 [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.
Bonanza 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
Bonanza Infrastructure Age
With 48% 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
What does a median build year of 1982 mean for water safety in Bonanza? It means the housing stock straddles two key plumbing thresholds: the 1986 federal ban on lead solder in copper plumbing, and the pre-1970 era when lead pipes were commonly installed for service lines. A meaningful share of homes predates one or both of those cutoffs, creating varied risk levels across the city's housing inventory.
Most homes in Bonanza were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Bonanza
Placing remediation in the context of Bonanza's property market, the equity share is low — most homeowners here are weighing a financial commitment that fits comfortably within routine property planning, far from the threshold where remediation becomes a material equity decision rather than a standard upkeep consideration.
Remediation costs in Bonanza are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 31% below the Oregon average.
Bonanza: 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 48% of local housing was built before solder rules changed — as is the case in Bonanza — 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 Bonanza
- 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 48% 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 Bonanza, OR