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