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