Local water quality
Water quality in San Diego, California
9 public water systems · EPA data
The bottom line
EPA records for the water serving San Diego, California show Lead, Copper, Nitrate. A filter independently certified to reduce those exact contaminants is the most direct fix.
What's in San Diego's water
Contaminants EPA has recorded across San Diego's water systems, and how many certified filters remove each.
Water systems serving San Diego
Open a system for its full report — measured levels vs. federal limits, PFAS, and the certified filters that remove each contaminant.
SAN DIEGO, CITY OF
1,385,379 people served
1 contaminant · report →
NAS NORTH ISLAND & NAB CORONADO
36,990 people served
1 contaminant · report →
SOUTH BAY ROD & GUN CLUB INC.
18,900 people served
1 contaminant · report →
WARNER SPRINGS RANCH RESORT LLC
4,831 people served
2 contaminants · report →
USN SAN CLEMENTE ISLAND
800 people served
2 contaminants · report →
BUTTERFIELD RANCH
353 people served
2 contaminants · report →
DHS BORDER PATROL I-8 CHECKPOINT
160 people served
2 contaminants · report →
PACIFICA RIVER OAKS LLC
105 people served
2 contaminants · report →
SUNTREE HOLLOW MOBILE HOME COURT
60 people served
1 contaminant · report →
Filter your San Diego water
Match a certified filter to what's actually in your water — a filter certified for lead may do nothing for PFAS or fluoride.