Water Quality in YONCALLA, OR (97499)
EPA violation data for public water systems serving ZIP code 97499.
30
Total Violations
2
Health-Based
28
Monitoring / Reporting
29
Resolved
What does this mean?
29 of 30 violations have been resolved. 2 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 28 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.
Violations Detail (30 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Active | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Jan 31, 2024 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jan 31, 2024 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jan 31, 2024 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(4)
Surface Water Treatment Rule
36
Consumer Confidence Rule
71
Surface Water Treatment Rule
36
Interim Enhanced Surface Water Treatment Rule
38
2024(4)
Consumer Confidence Rule
71
Interim Enhanced Surface Water Treatment Rule
38
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
How Does This Compare?
YONCALLA (97499) has 30 recorded violations, including 2 health-based. 1 remains unresolved. Consider testing your tap water independently for added peace of mind.
Recommended Water Filters
Based on the contaminants detected in your area, these filter types may help improve your water quality.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 certified
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.