Local water quality
Water quality in San Jose, California
39 public water systems · PFAS detected · EPA data
The bottom line
EPA records for the water serving San Jose, California show Lead, Copper. A filter independently certified to reduce those exact contaminants is the most direct fix.
What's in San Jose's water
Contaminants EPA has recorded across San Jose's water systems, and how many certified filters remove each.
Water systems serving San Jose
Open a system for its full report — measured levels vs. federal limits, PFAS, and the certified filters that remove each contaminant.
SAN JOSE WATER
1,039,920 people served
1 contaminant · 2 PFAS · report →
CWS - BAKERSFIELD
267,881 people served
1 contaminant · 7 PFAS · report →
CALIFORNIA WATER SERVICE - STOCKTON
176,266 people served
1 contaminant · 1 PFAS · report →
BAKERSFIELD, CITY OF
160,144 people served
1 contaminant · 3 PFAS · report →
CALIFORNIA WATER SERVICE CO. - ELA
152,474 people served
1 contaminant · 5 PFAS · report →
CWS - VISALIA
148,496 people served
1 contaminant · 6 PFAS · report →
CALIFORNIA WATER SERVICE CO. - DOMINGUEZ
143,996 people served
1 contaminant · 1 PFAS · report →
CWSC SALINAS
123,679 people served
1 contaminant · report →
CAL-WATER SERVICE CO.-CHICO
114,925 people served
1 contaminant · 6 PFAS · report →
GREAT OAKS WC INC
110,088 people served
1 contaminant · 4 PFAS · report →
CALIFORNIA WATER SERVICE - SAN MATEO
102,348 people served
1 contaminant · report →
CITY OF SAN JOSE - EVG/EDV/COY
101,265 people served
1 contaminant · report →
CALIFORNIA WATER SERVICE CO. - HERM/REDO
96,853 people served
1 contaminant · report →
CALIFORNIA WATER SERVICE CO. - PALOS VER
71,452 people served
1 contaminant · report →
CWSC LOS ALTOS SUBURBAN
69,973 people served
1 contaminant · 1 PFAS · report →
CALIFORNIA WATER SERVICE-S SAN FRANCISCO
64,146 people served
1 contaminant · report →
CALIFORNIA WATER SERVICE - BEAR GULCH
61,431 people served
1 contaminant · report →
CALIFORNIA WATER SERVICE - LIVERMORE
60,414 people served
1 contaminant · 6 PFAS · report →
CITY OF SAN JOSE - NSJ/ALVISO
45,559 people served
1 contaminant · report →
HAWTHORNE-CITY WATER DEPT.
44,718 people served
2 contaminants · report →
CALIFORNIA WATER SERVICE - SAN CARLOS
35,344 people served
1 contaminant · report →
SAN JOSE STATE UNIVERSITY
34,861 people served
1 contaminant · report →
CWS - SELMA
26,517 people served
1 contaminant · report →
CWS - NORTH GARDEN
22,762 people served
1 contaminant · 1 PFAS · report →
CALIFORNIA WATER SERVICE CO - WESTLAKE
19,533 people served
1 contaminant · report →
CALIFORNIA WATER SERVICE CO.-TRAVIS AFB
18,111 people served
1 contaminant · report →
CITY OF CUPERTINO
16,336 people served
1 contaminant · report →
CWSC KING CITY
16,334 people served
2 contaminants · report →
CAL-WATER SERVICE CO.-MARYSVILLE
12,419 people served
1 contaminant · report →
CAL-WATER SERVICE CO.-OROVILLE
11,106 people served
1 contaminant · 1 PFAS · report →
CALIFORNIA WATER SERVICE CO. - DIXON
10,623 people served
1 contaminant · report →
CAL-WATER SERVICE CO.-WILLOWS
7,240 people served
1 contaminant · report →
CWSC SALINAS HILLS
5,293 people served
2 contaminants · report →
COMMERCE-CITY, WATER DEPT.
4,205 people served
1 contaminant · 6 PFAS · report →
TESORO VIEJO MASTER MWC, INC.
3,885 people served
1 contaminant · report →
CWS - KERNVILLE
2,572 people served
3 contaminants · report →
CEDAR GROVE MOBILE HOME PARK
595 people served
2 contaminants · report →
ROSEVIEW HEIGHTS MUTUAL WATER COMPANY
148 people served
2 contaminants · report →
KENNON WATER COMPANY
142 people served
2 contaminants · report →
Filter your San Jose water
Match a certified filter to what's actually in your water — a filter certified for lead may do nothing for PFAS or fluoride.