Local water quality
Water quality in Hollister, California
9 public water systems · PFAS detected · EPA data
The bottom line
EPA records for the water serving Hollister, California show Lead, Copper, Total Trihalomethanes and more. A filter independently certified to reduce those exact contaminants is the most direct fix.
What's in Hollister's water
Contaminants EPA has recorded across Hollister's water systems, and how many certified filters remove each.
Water systems serving Hollister
Open a system for its full report — measured levels vs. federal limits, PFAS, and the certified filters that remove each contaminant.
HOLLISTER, CITY OF
26,017 people served
2 contaminants · report →
SUNNYSLOPE COUNTY WATER DIST
24,954 people served
1 contaminant · 1 PFAS · report →
RANCHO SAN JOAQUIN MWC
914 people served
3 contaminants · report →
CSA NO. 31 STONEGATE WS
230 people served
2 contaminants · report →
SAN JUSTO MUTUAL WATER COMPANY
160 people served
2 contaminants · report →
HOLLISTER RANCH ESTATES
150 people served
3 contaminants · report →
BEST ROAD MWC
133 people served
4 contaminants · report →
VALENZUELA WATER SYSTEM
55 people served
3 contaminants · report →
FAIRVIEW ROAD WATER SYSTEM
0 people served
3 contaminants · report →
Filter your Hollister water
Match a certified filter to what's actually in your water — a filter certified for lead may do nothing for PFAS or fluoride.