Riddle, OR: 25 Violations — 65/100 (2026)
1 ZIP code · 6 water systems · Updated 2026-06-03
If you're checking Riddle, OR tap water safety, the short answer is: average — violations are present in parts of the city and specifics depend on which water system serves your address.
How Riddle Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Riddle Residents
- Your city's water systems recorded 25 violations in the past 5 years.
- Average lead level: 0.01 mg/L.
- Homes built before 1986: 77% — older plumbing may contain lead solder.
- CDC health risk index: 15.16 — above typical levels.
Riddle's Water Providers
3 independent water providers serve Riddle, OR — 6 systems appear in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Riddle, Oregon, covering 6 community water systems serving approximately 2,541 people.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Riddle: C (65/100)
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
Riddle water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0100 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 14 | 1 |
| E. coli | Microbiological | 12 | 1 |
| Fecal Coliform | Microbiological | 12 | 1 |
| Consumer Confidence Report Rule | Reporting | 6 | 1 |
| Lead | Inorganic | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 97469 | C | 25 | 0 | CANYONVILLE, CITY OF |
All ZIP Codes in Riddle
- 97469 [C] — 25 violations
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.
Riddle 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
What's in Riddle's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Riddle Infrastructure Age
With 77% 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
Lead solder was standard in copper plumbing until federally banned in 1986; lead pipes were common in service lines pre-1970. Riddle's median build year of 1963 reflects a housing stock where these older materials are a pervasive feature — not a rare legacy — of the residential plumbing landscape.
Over half of homes in Riddle 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.
Riddle: 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.
Even where utility-side monitoring meets Lead and Copper Rule requirements, the 77% pre-rule share in Riddle 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 Riddle
- 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. Filters rated for Surface Water Treatment Rule can reduce the most common contaminant found in Riddle's water.
- Check your home's plumbing. With 77% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Riddle, OR