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