Water Quality in Richland, WA (99352)
EPA violation data for public water systems serving ZIP code 99352.
21
Total Violations
4
Health-Based
17
Monitoring / Reporting
17
Resolved
What does this mean?
17 of 21 violations have been resolved. 4 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 17 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 (21 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 31, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
| Surface Water Treatment Rule | Health-Based | N/A | N/A | Dec 31, 2024 | Active | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Oct 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Oct 31, 2024 | Resolved | N/A |
| Surface Water Treatment Rule | Health-Based | N/A | N/A | Aug 31, 2024 | Active | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Aug 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 31, 2024 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(2)
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
2024(8)
Surface Water Treatment Rule
36
Surface Water Treatment Rule
41
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Surface Water Treatment Rule
41
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
How Does This Compare?
Richland (99352) has 21 recorded violations, including 4 health-based. 4 remain 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.
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.