S

San Jose, CA

A35/100

Contamination score

Higher = more contaminated vs. other cities.

⚠️10 health-based violations on record.
0
Water sources
31
Violations
0
Pollution sources
0
Self-reported
0
Lawsuits

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Reported illness & cancer claims

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Self-reported issues

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Pollution sources & reported claims near your water

Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.

Critical High Medium Reported claim

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Public water systems

Hawthorne-City Water Dept.

PWSID:
CA1910047
Source:
Surface water
Serves:
44,718 people

CALIFORNIA WATER SERVICE - LIVERMORE

PWSID:
CA0110003
Source:
Surface water
Serves:
60,414 people

CWS - VISALIA

PWSID:
CA5410016
Source:
Ground water
Serves:
148,496 people

CWSC SALINAS HILLS

PWSID:
CA2710012
Source:
Ground water
Serves:
5,293 people

City Of San Jose - Nsj/Alviso

PWSID:
CA4310019
Source:
Surface water
Serves:
45,559 people

CALIFORNIA WATER SERVICE CO. - ELA

PWSID:
CA1910036
Source:
Surface water
Serves:
152,474 people

CWS - NORTH GARDEN

PWSID:
CA1510055
Source:
Surface water
Serves:
22,762 people

CALIFORNIA WATER SERVICE CO. - PALOS VER

PWSID:
CA1910104
Source:
Surface water
Serves:
71,452 people

CAL-WATER SERVICE CO.-MARYSVILLE

PWSID:
CA5810001
Source:
Ground water
Serves:
12,419 people

CALIFORNIA WATER SERVICE CO. - HERM/REDO

PWSID:
CA1910134
Source:
Surface water
Serves:
96,853 people

CWS - BAKERSFIELD

PWSID:
CA1510003
Source:
Surface water
Serves:
267,881 people

CAL-WATER SERVICE CO.-OROVILLE

PWSID:
CA0410005
Source:
Surface water
Serves:
11,106 people

GREAT OAKS WC INC

PWSID:
CA4310022
Source:
Ground water
Serves:
110,088 people

CALIFORNIA WATER SERVICE CO.-TRAVIS AFB

PWSID:
CA4810701
Source:
Surface water
Serves:
18,111 people

Commerce-City, Water Dept.

PWSID:
CA1910050
Source:
Surface water
Serves:
4,205 people

SAN JOSE WATER

PWSID:
CA4310011
Source:
Surface water
Serves:
1,039,920 people

CWS - SELMA

PWSID:
CA1010024
Source:
Ground water
Serves:
26,517 people

CAL-WATER SERVICE CO.-WILLOWS

PWSID:
CA1110003
Source:
Ground water
Serves:
7,240 people

CALIFORNIA WATER SERVICE - STOCKTON

PWSID:
CA3910001
Source:
Surface water
Serves:
176,266 people

CWSC SALINAS

PWSID:
CA2710010
Source:
Ground water
Serves:
123,679 people

CALIFORNIA WATER SERVICE - SAN CARLOS

PWSID:
CA4110007
Source:
Surface water
Serves:
35,344 people

CALIFORNIA WATER SERVICE CO - WESTLAKE

PWSID:
CA5610016
Source:
Surface water
Serves:
19,533 people

CAL-WATER SERVICE CO.-CHICO

PWSID:
CA0410002
Source:
Ground water
Serves:
114,925 people

TESORO VIEJO MASTER MWC, INC.

PWSID:
CA2010017
Source:
Surface water
Serves:
3,885 people

CALIFORNIA WATER SERVICE-S SAN FRANCISCO

PWSID:
CA4110009
Source:
Surface water
Serves:
64,146 people

City Of Cupertino

PWSID:
CA4310018
Source:
Surface water
Serves:
16,336 people

CALIFORNIA WATER SERVICE - BEAR GULCH

PWSID:
CA4110006
Source:
Surface water
Serves:
61,431 people

CWSC LOS ALTOS SUBURBAN

PWSID:
CA4310001
Source:
Surface water
Serves:
69,973 people

CALIFORNIA WATER SERVICE CO. - DOMINGUEZ

PWSID:
CA1910033
Source:
Surface water
Serves:
143,996 people

CALIFORNIA WATER SERVICE CO. - DIXON

PWSID:
CA4810002
Source:
Ground water
Serves:
10,623 people

CALIFORNIA WATER SERVICE - SAN MATEO

PWSID:
CA4110008
Source:
Surface water
Serves:
102,348 people

Bakersfield, City Of

PWSID:
CA1510031
Source:
Surface water
Serves:
160,144 people

City Of San Jose - Evg/Edv/Coy

PWSID:
CA4310020
Source:
Surface water
Serves:
101,265 people

Cwsc King City

PWSID:
CA2710009
Source:
Ground water
Serves:
16,334 people

EPA & DEP violations

Hawthorne-City Water Dept.

PWSID CA19100475 violations

  • Monitoring violation — HAWTHORNE-CITY WATER DEPT.

    low severityResolved

    EPA SDWIS violation 9707003 (code 27) at HAWTHORNE-CITY WATER DEPT. (PWSID CA1910047).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2019 · 7 years ago · Source ↗

  • Monitoring violation — HAWTHORNE-CITY WATER DEPT.

    low severityResolved

    EPA SDWIS violation 9707004 (code 27) at HAWTHORNE-CITY WATER DEPT. (PWSID CA1910047).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2019 · 7 years ago · Source ↗

  • TTHM — MR violation

    medium severityResolved

    TTHM MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2019 · 7 years ago · Source ↗

  • Total Haloacetic Acids (HAA5) — MR violation

    medium severityResolved

    Total Haloacetic Acids (HAA5) MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2019 · 7 years ago · Source ↗

  • Violation — Violation violation

    medium severity

    Contaminant Violation violation.

    EPA SDWIS · Violation · Began — · Source ↗

City Of San Jose - Nsj/Alviso

PWSID CA43100191 violation

  • Monitoring violation — CITY OF SAN JOSE - NSJ/ALVISO

    low severityResolved

    EPA SDWIS violation 617003 (code 24) at CITY OF SAN JOSE - NSJ/ALVISO (PWSID CA4310019).

    EPA SDWIS · Monitoring violation · Began Dec 1, 2005 · 20 years ago · Source ↗

CAL-WATER SERVICE CO.-OROVILLE

PWSID CA04100051 violation

  • Monitoring violation — CAL-WATER SERVICE CO.-OROVILLE

    low severityResolved

    EPA SDWIS violation 9621002 (code 3A) at CAL-WATER SERVICE CO.-OROVILLE (PWSID CA0410005).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗

GREAT OAKS WC INC

PWSID CA43100221 violation

  • Monitoring violation — GREAT OAKS WC INC

    low severityResolved

    EPA SDWIS violation 217002 (code 52) at GREAT OAKS WC INC (PWSID CA4310022).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2002 · 24 years ago · Source ↗

CALIFORNIA WATER SERVICE CO.-TRAVIS AFB

PWSID CA48107011 violation

  • MCL exceedance — CALIFORNIA WATER SERVICE CO.-TRAVIS AFB

    high severityHealth-basedResolved

    EPA SDWIS violation 9904018 (code 02) at CALIFORNIA WATER SERVICE CO.-TRAVIS AFB (PWSID CA4810701).

    EPA SDWIS · MCL exceedance · Began Jul 1, 2015 · 11 years ago · Source ↗

Commerce-City, Water Dept.

PWSID CA19100501 violation

  • Violation — Violation violation

    medium severity

    Contaminant Violation violation.

    EPA SDWIS · Violation · Began — · Source ↗

SAN JOSE WATER

PWSID CA43100113 violations

  • Treatment technique violation — SAN JOSE WATER

    high severityHealth-basedResolved

    EPA SDWIS violation 9705007 (code 41) at SAN JOSE WATER (PWSID CA4310011).

    EPA SDWIS · Treatment technique violation · Began Jun 1, 2023 · 3 years ago · Source ↗

  • Monitoring violation — SAN JOSE WATER

    low severityResolved

    EPA SDWIS violation 9705005 (code 03) at SAN JOSE WATER (PWSID CA4310011).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2019 · 7 years ago · Source ↗

  • Monitoring violation — SAN JOSE WATER

    low severityResolved

    EPA SDWIS violation 9705003 (code 34) at SAN JOSE WATER (PWSID CA4310011).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2017 · 9 years ago · Source ↗

CALIFORNIA WATER SERVICE - SAN CARLOS

PWSID CA41100071 violation

  • Treatment technique violation — CALIFORNIA WATER SERVICE - SAN CARLOS

    high severityHealth-basedResolved

    EPA SDWIS violation 9604007 (code 41) at CALIFORNIA WATER SERVICE - SAN CARLOS (PWSID CA4110007).

    EPA SDWIS · Treatment technique violation · Began Mar 1, 2015 · 11 years ago · Source ↗

CAL-WATER SERVICE CO.-CHICO

PWSID CA04100021 violation

  • MCL exceedance — CAL-WATER SERVICE CO.-CHICO

    high severityHealth-basedResolved

    EPA SDWIS violation 9921004 (code 01) at CAL-WATER SERVICE CO.-CHICO (PWSID CA0410002).

    EPA SDWIS · MCL exceedance · Began Dec 1, 1998 · 27 years ago · Source ↗

CALIFORNIA WATER SERVICE-S SAN FRANCISCO

PWSID CA41100092 violations

  • Monitoring violation — CALIFORNIA WATER SERVICE-S SAN FRANCISCO

    low severityResolved

    EPA SDWIS violation 9304007 (code 34) at CALIFORNIA WATER SERVICE-S SAN FRANCISCO (PWSID CA4110009).

    EPA SDWIS · Monitoring violation · Began Jun 1, 2013 · 13 years ago · Source ↗

  • MCL exceedance — CALIFORNIA WATER SERVICE-S SAN FRANCISCO

    high severityHealth-basedResolved

    EPA SDWIS violation 9304005 (code 22) at CALIFORNIA WATER SERVICE-S SAN FRANCISCO (PWSID CA4110009).

    EPA SDWIS · MCL exceedance · Began Oct 1, 1992 · 33 years ago · Source ↗

CALIFORNIA WATER SERVICE - BEAR GULCH

PWSID CA41100061 violation

  • MCL exceedance — CALIFORNIA WATER SERVICE - BEAR GULCH

    high severityHealth-basedResolved

    EPA SDWIS violation 9304006 (code 22) at CALIFORNIA WATER SERVICE - BEAR GULCH (PWSID CA4110006).

    EPA SDWIS · MCL exceedance · Began Oct 1, 1992 · 33 years ago · Source ↗

CWSC LOS ALTOS SUBURBAN

PWSID CA43100011 violation

  • MCL exceedance — CWSC LOS ALTOS SUBURBAN

    high severityHealth-basedResolved

    EPA SDWIS violation 9305001 (code 21) at CWSC LOS ALTOS SUBURBAN (PWSID CA4310001).

    EPA SDWIS · MCL exceedance · Began Nov 1, 1992 · 33 years ago · Source ↗

CALIFORNIA WATER SERVICE CO. - DOMINGUEZ

PWSID CA19100334 violations

  • Monitoring violation — CALIFORNIA WATER SERVICE CO. - DOMINGUEZ

    low severityResolved

    EPA SDWIS violation 9607006 (code 27) at CALIFORNIA WATER SERVICE CO. - DOMINGUEZ (PWSID CA1910033).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2018 · 8 years ago · Source ↗

  • Monitoring violation — CALIFORNIA WATER SERVICE CO. - DOMINGUEZ

    low severityResolved

    EPA SDWIS violation 9607007 (code 27) at CALIFORNIA WATER SERVICE CO. - DOMINGUEZ (PWSID CA1910033).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2018 · 8 years ago · Source ↗

  • Monitoring violation — CALIFORNIA WATER SERVICE CO. - DOMINGUEZ

    low severityResolved

    EPA SDWIS violation 9607004 (code 27) at CALIFORNIA WATER SERVICE CO. - DOMINGUEZ (PWSID CA1910033).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2018 · 8 years ago · Source ↗

  • Monitoring violation — CALIFORNIA WATER SERVICE CO. - DOMINGUEZ

    low severityResolved

    EPA SDWIS violation 9607005 (code 27) at CALIFORNIA WATER SERVICE CO. - DOMINGUEZ (PWSID CA1910033).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2018 · 8 years ago · Source ↗

CALIFORNIA WATER SERVICE - SAN MATEO

PWSID CA41100081 violation

  • MCL exceedance — CALIFORNIA WATER SERVICE - SAN MATEO

    high severityHealth-basedResolved

    EPA SDWIS violation 9304005 (code 22) at CALIFORNIA WATER SERVICE - SAN MATEO (PWSID CA4110008).

    EPA SDWIS · MCL exceedance · Began Oct 1, 1992 · 33 years ago · Source ↗

Bakersfield, City Of

PWSID CA15100313 violations

  • Nitrate — MR violation

    medium severityResolved

    Nitrate MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2010 · 16 years ago · Source ↗

  • Monitoring violation — BAKERSFIELD, CITY OF

    low severityResolved

    EPA SDWIS violation 112003 (code 03) at BAKERSFIELD, CITY OF (PWSID CA1510031).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2001 · 25 years ago · Source ↗

  • Violation — Violation violation

    medium severity

    Contaminant Violation violation.

    EPA SDWIS · Violation · Began — · Source ↗

Cwsc King City

PWSID CA27100091 violation

  • Violation — Violation violation

    medium severity

    Contaminant Violation violation.

    EPA SDWIS · Violation · Began — · Source ↗

City-wide

3 violations

  • Coliform (TCR) — MCL violation

    high severityHealth-basedResolved

    Coliform (TCR) MCL violation (Resolved).

    EPA SDWIS · MCL · Began May 1, 2012 · 14 years ago · Source ↗

  • Coliform (TCR) — MCL violation

    high severityHealth-basedResolved

    Coliform (TCR) MCL violation (Resolved).

    EPA SDWIS · MCL · Began Oct 1, 2010 · 15 years ago · Source ↗

  • Violation — Violation violation

    medium severity

    Contaminant Violation violation.

    EPA SDWIS · Violation · Began — · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.