ZIP Code Lookup

Water quality in ZIP 95153

SAN JOSE, California · 17 utilities serving 2,905,607 residents

Utilities serving this ZIP

Click any utility for full water quality details, contaminant testing data, treatment plant contact information, and recommended filters.

C
68/100

GREAT OAKS WC INC

Serves 110,088 residents · SAN JOSE, CA

  • Haloacetic acids (HAA5) significantly above health guideline
  • Chromium (hexavalent) significantly above health guideline
  • Arsenic significantly above health guideline
View full report →
C
67/100

CALIFORNIA WATER SERVICE - BEAR GULCH

Serves 61,431 residents · SAN JOSE, CA

  • Haloacetic acids (HAA9) significantly above health guideline
  • Haloacetic acids (HAA5) significantly above health guideline
  • Total trihalomethanes (TTHMs) significantly above health guideline
View full report →
C
67/100

CALIFORNIA WATER SERVICE - SAN MATEO

Serves 102,348 residents · SAN JOSE, CA

  • Haloacetic acids (HAA9) significantly above health guideline
  • Haloacetic acids (HAA5) significantly above health guideline
  • Total trihalomethanes (TTHMs) significantly above health guideline
View full report →
D
64/100

CALIFORNIA WATER SERVICE CO. - DOMINGUEZ

Serves 143,996 residents · SAN JOSE, CA

  • Perfluorohexane sulfonate (PFHXS) significantly above health guideline
  • Haloacetic acids (HAA5) significantly above health guideline
  • Haloacetic acids (HAA9) significantly above health guideline
View full report →
D
64/100

CALIFORNIA WATER SERVICE CO. - PALOS VER

Serves 71,452 residents · SAN JOSE, CA

  • Haloacetic acids (HAA5) significantly above health guideline
  • Haloacetic acids (HAA9) significantly above health guideline
  • Total trihalomethanes (TTHMs) significantly above health guideline
View full report →
D
64/100

CALIFORNIA WATER SERVICE CO. - HERM/REDO

Serves 96,853 residents · SAN JOSE, CA

  • Haloacetic acids (HAA5) significantly above health guideline
  • Haloacetic acids (HAA9) significantly above health guideline
  • Total trihalomethanes (TTHMs) significantly above health guideline
View full report →
D
62/100

CALIFORNIA WATER SERVICE-S SAN FRANCISCO

Serves 64,146 residents · SAN JOSE, CA

  • Arsenic significantly above health guideline
  • Haloacetic acids (HAA5) significantly above health guideline
  • Haloacetic acids (HAA9) significantly above health guideline
View full report →
D
60/100

CWSC SALINAS

Serves 123,679 residents · SAN JOSE, CA

  • Arsenic significantly above health guideline
  • Haloacetic acids (HAA5) significantly above health guideline
  • Chromium (hexavalent) significantly above health guideline
View full report →
D
56/100

CAL-WATER SERVICE CO.-CHICO

Serves 114,925 residents · SAN JOSE, CA

  • PFAS contamination
  • Perfluorohexane sulfonate (PFHXS) significantly above health guideline
  • Haloacetic acids (HAA5) significantly above health guideline
View full report →
F
53/100

CWSC LOS ALTOS SUBURBAN

Serves 69,973 residents · SAN JOSE, CA

  • PFAS contamination
  • Haloacetic acids (HAA5) significantly above health guideline
  • Perfluorohexane sulfonate (PFHXS) significantly above health guideline
View full report →
F
53/100

CITY OF SAN JOSE - EVG/EDV/COY

Serves 101,265 residents · SAN JOSE, CA

  • PFAS contamination
  • Perfluorohexane sulfonate (PFHXS) significantly above health guideline
  • Haloacetic acids (HAA5) significantly above health guideline
View full report →
F
53/100

CWS - VISALIA

Serves 148,496 residents · SAN JOSE, CA

  • PFAS contamination
  • Haloacetic acids (HAA5) significantly above health guideline
  • Perfluorohexane sulfonate (PFHXS) significantly above health guideline
View full report →
F
50/100

CALIFORNIA WATER SERVICE - LIVERMORE

Serves 60,414 residents · SAN JOSE, CA

  • PFAS contamination
  • Perfluorohexane sulfonate (PFHXS) significantly above health guideline
  • Arsenic* significantly above health guideline
View full report →
F
50/100

CALIFORNIA WATER SERVICE CO. - ELA

Serves 152,474 residents · SAN JOSE, CA

  • PFAS contamination
  • Perfluorohexane sulfonate (PFHXS) significantly above health guideline
  • Haloacetic acids (HAA5) significantly above health guideline
View full report →
F
50/100

SAN JOSE WATER

Serves 1,039,920 residents · SAN JOSE, CA

  • PFAS contamination
  • Perfluorohexane sulfonate (PFHXS) significantly above health guideline
  • Haloacetic acids (HAA5) significantly above health guideline
View full report →
F
48/100

CALIFORNIA WATER SERVICE - STOCKTON

Serves 176,266 residents · SAN JOSE, CA

  • PFAS contamination
  • Arsenic significantly above health guideline
  • Total trihalomethanes (TTHMs) significantly above health guideline
View full report →
F
47/100

CWS - BAKERSFIELD

Serves 267,881 residents · SAN JOSE, CA

  • PFAS contamination
  • Perfluorohexane sulfonate (PFHXS) significantly above health guideline
  • Arsenic significantly above health guideline
View full report →

Wondering what's in your water?

Every utility above publishes an annual Consumer Confidence Report (CCR) listing contaminants found in your water. Click any utility to see:

  • Detected contaminants and how they compare to health guidelines
  • Treatment plant contact information and water quality officer
  • Recent SDWA violations and resolution status
  • Filter recommendations matched to your specific water profile

Read our water safety guides →