Water Quality in Hermiston, OR (97859)
EPA violation data for public water systems serving ZIP code 97859.
Past Health-Based Violations
3 health-based violations were found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 47 monitoring/reporting violations.
More violations than 91% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
95
Population
14
Water Systems
50
Violations (5yr)
3
Health-Based
Location
Loading map...
Water Systems Serving This Area (14)
Hermiston, City Of
All resolvedPendleton, City Of
All resolvedOprd Hat Rock State Park
2 health-basedBlue Mt Lodge
Oprd Emigrant Springs State Pk
All resolvedOprd Hilgard Junction State Pk
All resolvedOprd Red Bridge State Park
All resolvedCrazy Carl'S Blue Mtn.Lodge
Oprd Catherine Creek Sp-Cg
1 health-basedOregon Trail Cafe
All resolvedOprd Catherine Creek Sp-Day Use
All resolvedOprd Ukiah-Dale Forest Wayside
Oprd Battle Mountain State Pk
Papoose Woodlands Water Co
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2023
How Does This Compare?
Hermiston (97859) has more violations than 91% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 50.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.
Targets:Nitrate, Nitrite, Dissolved Solids
Look for:NSF/ANSI 58 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. This is general educational information, not an endorsement of any specific product.