Local water quality
Water quality in Coulee City, Washington
2 public water systems · EPA data
The bottom line
EPA records for the water serving Coulee City, Washington show Nitrate. A filter independently certified to reduce those exact contaminants is the most direct fix.
What's in Coulee City's water
Contaminants EPA has recorded across Coulee City's water systems, and how many certified filters remove each.
Water systems serving Coulee City
Open a system for its full report — measured levels vs. federal limits, PFAS, and the certified filters that remove each contaminant.
Filter your Coulee City water
Match a certified filter to what's actually in your water — a filter certified for lead may do nothing for PFAS or fluoride.