Public Water System: California Water Service - Livermore

MyTapWater.org's tap water quality report is the compilation of data collected from federal, state, and local government agencies, most prominently the EPA. We strive to populate the report with the latest data concerning water contaminants, lead and copper levels, and water quality violations. We only collect drinking water data from public water systems.

PWS Service Information
PWS ID: CA0110003
Type: Community water system
EPA Region: 09
Primary Source: Surface water purchased
Population Served: 56,700
Contact Information
SIPAT, PHILLIP
SIPAT, PHILLIP
195 S N ST
LIVERMORE, CA 94550-4350

This public water system services 3 zip codes in 1 county.

Summary Results


A summary view of the the times a water contaminant was tested and found to exceed the level set by the EPA (the MCL).

Maximum Contaminant Levels Exceeded (by year):

2013   (0) 2014   (1) 2015   (1)
chlorate chlorate

Contaminant Detailed Results


This a view of violations of maximum contaminant levels. In the expanded view you can see each know test date for a given contaminant, the result of the test, the minimum level that can be recognized in a test (MRL), and upper limit that is considered healthy (HRL).

chlorate
Is this in your home's pipes?

Year Test Date MRL HRL Test Result
2016 2016-01-18 20 210 72
2015 2015-12-15 20 210 74
2015 2015-04-21 20 210 130
2015 2015-03-25 20 210 640
2015 2015-02-18 20 210 48
2015 2015-02-18 20 210 710
2015 2015-02-18 20 210 120
2015 2015-01-13 20 210 150
2014 2014-10-22 20 210 290
2014 2014-10-16 20 210 180
2014 2014-10-15 20 210 150
2014 2014-10-14 20 210 260
2014 2014-07-23 20 210 750
2014 2014-07-23 20 210 280
2014 2014-07-22 20 210 95
2014 2014-07-22 20 210 390
2014 2014-05-07 20 210 160
2014 2014-04-16 20 210 120
2014 2014-04-16 20 210 170
2014 2014-04-09 20 210 120
2014 2014-04-09 20 210 38
2014 2014-04-09 20 210 140
2014 2014-04-02 20 210 230
2014 2014-04-02 20 210 200
2014 2014-04-02 20 210 220
2014 2014-01-16 20 210 170
2014 2014-01-15 20 210 150
2014 2014-01-07 20 210 140

Other Water Contaminants Tested


The following contaminants were tested and within national EPA guidelines.

The last mile of pipe makes a big difference, learn more about testing your water.

Contaminant MRL HRL Avg Result
chromium-6 0.03 0 2.4787 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.03 0 4.3
2015 2015-12-15 0.03 0 3.7
2015 2015-04-21 0.03 0 2.5
2015 2015-03-25 0.03 0 2.9
2015 2015-02-18 0.03 0 3.8
2015 2015-02-18 0.03 0 2.8
2015 2015-02-18 0.03 0 0.064
2015 2015-01-13 0.03 0 4.1
2014 2014-10-22 0.03 0 0.095
2014 2014-10-16 0.03 0 3.5
2014 2014-10-15 0.03 0 5.5
2014 2014-10-14 0.03 0 1.4
2014 2014-07-23 0.03 0 1
2014 2014-07-23 0.03 0 0.41
2014 2014-07-22 0.03 0 6.1
2014 2014-07-22 0.03 0 0.54
2014 2014-05-07 0.03 0 3.8
2014 2014-04-16 0.03 0 2.8
2014 2014-04-16 0.03 0 5.3
2014 2014-04-09 0.03 0 3.9
2014 2014-04-09 0.03 0 3.9
2014 2014-04-09 0.03 0 0.17
2014 2014-04-02 0.03 0 0.79
2014 2014-04-02 0.03 0 4.4
2014 2014-04-02 0.03 0 0.086
2014 2014-01-16 0.03 0 0.069
2014 2014-01-15 0.03 0 0.86
2014 2014-01-07 0.03 0 0.62
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.03 0 < 0.03
2015 2015-12-15 0.03 0 < 0.03
2015 2015-04-21 0.03 0 < 0.03
2015 2015-03-25 0.03 0 < 0.03
2015 2015-02-18 0.03 0 < 0.03
2015 2015-02-18 0.03 0 < 0.03
2015 2015-01-13 0.03 0 < 0.03
2014 2014-10-16 0.03 0 < 0.03
2014 2014-10-15 0.03 0 < 0.03
2014 2014-07-22 0.03 0 < 0.03
2014 2014-07-22 0.03 0 < 0.03
2014 2014-05-07 0.03 0 < 0.03
2014 2014-04-16 0.03 0 < 0.03
2014 2014-04-16 0.03 0 < 0.03
2014 2014-04-09 0.03 0 < 0.03
2014 2014-04-09 0.03 0 < 0.03
2014 2014-04-02 0.03 0 < 0.03
2014 2014-01-16 0.03 0 < 0.03
vanadium 0.2 21 1.1418 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.2 21 1.2
2015 2015-12-15 0.2 21 1.2
2015 2015-04-21 0.2 21 1.1
2015 2015-03-25 0.2 21 3.4
2015 2015-02-18 0.2 21 1.1
2015 2015-02-18 0.2 21 2.5
2015 2015-02-18 0.2 21 < 0.2
2015 2015-01-13 0.2 21 1.1
2014 2014-10-22 0.2 21 < 0.2
2014 2014-10-16 0.2 21 1.1
2014 2014-10-15 0.2 21 3.4
2014 2014-10-14 0.2 21 0.44
2014 2014-07-23 0.2 21 0.22
2014 2014-07-23 0.2 21 0.87
2014 2014-07-22 0.2 21 2
2014 2014-07-22 0.2 21 < 0.2
2014 2014-05-07 0.2 21 1.1
2014 2014-04-16 0.2 21 3.2
2014 2014-04-16 0.2 21 1
2014 2014-04-09 0.2 21 2.3
2014 2014-04-09 0.2 21 1
2014 2014-04-09 0.2 21 < 0.2
2014 2014-04-02 0.2 21 0.3
2014 2014-04-02 0.2 21 1.8
2014 2014-04-02 0.2 21 0.79
2014 2014-01-16 0.2 21 < 0.2
2014 2014-01-15 0.2 21 0.26
2014 2014-01-07 0.2 21 0.59
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.03 0.0004 < 0.03
2015 2015-12-15 0.03 0.0004 < 0.03
2015 2015-04-21 0.03 0.0004 < 0.03
2015 2015-03-25 0.03 0.0004 < 0.03
2015 2015-02-18 0.03 0.0004 < 0.03
2015 2015-02-18 0.03 0.0004 < 0.03
2015 2015-01-13 0.03 0.0004 < 0.03
2014 2014-11-24 0.03 0.0004 < 0.03
2014 2014-10-16 0.03 0.0004 < 0.03
2014 2014-07-22 0.03 0.0004 < 0.03
2014 2014-07-22 0.03 0.0004 < 0.03
2014 2014-05-07 0.03 0.0004 < 0.03
2014 2014-04-23 0.03 0.0004 < 0.03
2014 2014-04-16 0.03 0.0004 < 0.03
2014 2014-04-16 0.03 0.0004 < 0.03
2014 2014-04-09 0.03 0.0004 < 0.03
2014 2014-04-09 0.03 0.0004 < 0.03
2014 2014-01-16 0.03 0.0004 < 0.03
1,4-dioxane 0.07 0.35 0.0178 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.07 0.35 < 0.07
2015 2015-12-15 0.07 0.35 < 0.07
2015 2015-04-21 0.07 0.35 < 0.07
2015 2015-03-25 0.07 0.35 < 0.07
2015 2015-02-18 0.07 0.35 < 0.07
2015 2015-02-18 0.07 0.35 < 0.07
2015 2015-01-13 0.07 0.35 < 0.07
2014 2014-10-16 0.07 0.35 < 0.07
2014 2014-10-15 0.07 0.35 < 0.07
2014 2014-07-22 0.07 0.35 < 0.07
2014 2014-07-22 0.07 0.35 < 0.07
2014 2014-05-07 0.07 0.35 < 0.07
2014 2014-04-16 0.07 0.35 < 0.07
2014 2014-04-16 0.07 0.35 < 0.07
2014 2014-04-09 0.07 0.35 < 0.07
2014 2014-04-09 0.07 0.35 < 0.07
2014 2014-04-02 0.07 0.35 0.32
2014 2014-01-16 0.07 0.35 < 0.07
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 1 70 < 1
2015 2015-12-15 1 70 < 1
2015 2015-04-21 1 70 < 1
2015 2015-03-25 1 70 < 1
2015 2015-02-18 1 70 < 1
2015 2015-02-18 1 70 < 1
2015 2015-02-18 1 70 < 1
2015 2015-01-13 1 70 < 1
2014 2014-10-22 1 70 < 1
2014 2014-10-16 1 70 < 1
2014 2014-10-15 1 70 < 1
2014 2014-10-14 1 70 < 1
2014 2014-07-23 1 70 < 1
2014 2014-07-23 1 70 < 1
2014 2014-07-22 1 70 < 1
2014 2014-07-22 1 70 < 1
2014 2014-05-07 1 70 < 1
2014 2014-04-16 1 70 < 1
2014 2014-04-16 1 70 < 1
2014 2014-04-09 1 70 < 1
2014 2014-04-09 1 70 < 1
2014 2014-04-09 1 70 < 1
2014 2014-04-02 1 70 < 1
2014 2014-04-02 1 70 < 1
2014 2014-04-02 1 70 < 1
2014 2014-01-16 1 70 < 1
2014 2014-01-15 1 70 < 1
2014 2014-01-07 1 70 < 1
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.01 0 < 0.01
2015 2015-12-15 0.01 0 < 0.01
2015 2015-04-21 0.01 0 < 0.01
2015 2015-03-25 0.01 0 < 0.01
2015 2015-02-18 0.01 0 < 0.01
2015 2015-02-18 0.01 0 < 0.01
2015 2015-01-13 0.01 0 < 0.01
2014 2014-10-16 0.01 0 < 0.01
2014 2014-10-15 0.01 0 < 0.01
2014 2014-07-22 0.01 0 < 0.01
2014 2014-07-22 0.01 0 < 0.01
2014 2014-05-07 0.01 0 < 0.01
2014 2014-04-16 0.01 0 < 0.01
2014 2014-04-16 0.01 0 < 0.01
2014 2014-04-09 0.01 0 < 0.01
2014 2014-04-09 0.01 0 < 0.01
2014 2014-04-02 0.01 0 < 0.01
2014 2014-01-16 0.01 0 < 0.01
Halon 1011 0.06 90 0.0043 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.06 90 < 0.06
2015 2015-12-15 0.06 90 < 0.06
2015 2015-04-21 0.06 90 < 0.06
2015 2015-03-25 0.06 90 < 0.06
2015 2015-02-18 0.06 90 < 0.06
2015 2015-02-18 0.06 90 < 0.06
2015 2015-01-13 0.06 90 < 0.06
2014 2014-11-24 0.06 90 < 0.06
2014 2014-10-16 0.06 90 < 0.06
2014 2014-07-22 0.06 90 < 0.06
2014 2014-07-22 0.06 90 < 0.06
2014 2014-05-07 0.06 90 < 0.06
2014 2014-04-23 0.06 90 < 0.06
2014 2014-04-16 0.06 90 < 0.06
2014 2014-04-16 0.06 90 < 0.06
2014 2014-04-09 0.06 90 < 0.06
2014 2014-04-09 0.06 90 < 0.06
2014 2014-01-16 0.06 90 0.077
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.2 140 < 0.2
2015 2015-12-15 0.2 140 < 0.2
2015 2015-04-21 0.2 140 < 0.2
2015 2015-03-25 0.2 140 < 0.2
2015 2015-02-18 0.2 140 < 0.2
2015 2015-02-18 0.2 140 < 0.2
2015 2015-01-13 0.2 140 < 0.2
2014 2014-11-24 0.2 140 < 0.2
2014 2014-10-16 0.2 140 < 0.2
2014 2014-07-22 0.2 140 < 0.2
2014 2014-07-22 0.2 140 < 0.2
2014 2014-05-07 0.2 140 < 0.2
2014 2014-04-23 0.2 140 < 0.2
2014 2014-04-16 0.2 140 < 0.2
2014 2014-04-16 0.2 140 < 0.2
2014 2014-04-09 0.2 140 < 0.2
2014 2014-04-09 0.2 140 < 0.2
2014 2014-01-16 0.2 140 < 0.2
molybdenum 1 40 0.2357 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 1 40 < 1
2015 2015-12-15 1 40 < 1
2015 2015-04-21 1 40 < 1
2015 2015-03-25 1 40 1.3
2015 2015-02-18 1 40 < 1
2015 2015-02-18 1 40 < 1
2015 2015-02-18 1 40 < 1
2015 2015-01-13 1 40 < 1
2014 2014-10-22 1 40 < 1
2014 2014-10-16 1 40 < 1
2014 2014-10-15 1 40 < 1
2014 2014-10-14 1 40 < 1
2014 2014-07-23 1 40 < 1
2014 2014-07-23 1 40 < 1
2014 2014-07-22 1 40 < 1
2014 2014-07-22 1 40 < 1
2014 2014-05-07 1 40 < 1
2014 2014-04-16 1 40 < 1
2014 2014-04-16 1 40 1.6
2014 2014-04-09 1 40 < 1
2014 2014-04-09 1 40 < 1
2014 2014-04-09 1 40 < 1
2014 2014-04-02 1 40 < 1
2014 2014-04-02 1 40 < 1
2014 2014-04-02 1 40 < 1
2014 2014-01-16 1 40 1.2
2014 2014-01-15 1 40 1.3
2014 2014-01-07 1 40 1.2
strontium 0.3 1500 412.5 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.3 1500 450
2015 2015-12-15 0.3 1500 500
2015 2015-04-21 0.3 1500 440
2015 2015-03-25 0.3 1500 340
2015 2015-02-18 0.3 1500 630
2015 2015-02-18 0.3 1500 480
2015 2015-02-18 0.3 1500 260
2015 2015-01-13 0.3 1500 490
2014 2014-10-22 0.3 1500 380
2014 2014-10-16 0.3 1500 500
2014 2014-10-15 0.3 1500 790
2014 2014-10-14 0.3 1500 310
2014 2014-07-23 0.3 1500 210
2014 2014-07-23 0.3 1500 260
2014 2014-07-22 0.3 1500 660
2014 2014-07-22 0.3 1500 130
2014 2014-05-07 0.3 1500 500
2014 2014-04-16 0.3 1500 760
2014 2014-04-16 0.3 1500 290
2014 2014-04-09 0.3 1500 360
2014 2014-04-09 0.3 1500 550
2014 2014-04-09 0.3 1500 230
2014 2014-04-02 0.3 1500 270
2014 2014-04-02 0.3 1500 570
2014 2014-04-02 0.3 1500 340
2014 2014-01-16 0.3 1500 280
2014 2014-01-15 0.3 1500 310
2014 2014-01-07 0.3 1500 260
chromium 0.2 100 2.52 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.2 100 4.7
2015 2015-12-15 0.2 100 3.8
2015 2015-04-21 0.2 100 3.4
2015 2015-03-25 0.2 100 2.9
2015 2015-02-18 0.2 100 3.9
2015 2015-02-18 0.2 100 3.1
2015 2015-02-18 0.2 100 0.22
2015 2015-01-13 0.2 100 4.6
2014 2014-10-22 0.2 100 0.35
2014 2014-10-16 0.2 100 4.1
2014 2014-10-15 0.2 100 5.8
2014 2014-10-14 0.2 100 1.8
2014 2014-07-23 0.2 100 0.23
2014 2014-07-23 0.2 100 0.56
2014 2014-07-22 0.2 100 6.2
2014 2014-07-22 0.2 100 < 0.2
2014 2014-05-07 0.2 100 3.7
2014 2014-04-16 0.2 100 5.3
2014 2014-04-16 0.2 100 < 0.2
2014 2014-04-09 0.2 100 3.5
2014 2014-04-09 0.2 100 3.4
2014 2014-04-09 0.2 100 0.27
2014 2014-04-02 0.2 100 0.91
2014 2014-04-02 0.2 100 4
2014 2014-04-02 0.2 100 2.4
2014 2014-01-16 0.2 100 < 0.2
2014 2014-01-15 0.2 100 0.75
2014 2014-01-07 0.2 100 0.67
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.02 0.07 < 0.02
2015 2015-12-15 0.02 0.07 < 0.02
2015 2015-04-21 0.02 0.07 < 0.02
2015 2015-03-25 0.02 0.07 < 0.02
2015 2015-02-18 0.02 0.07 < 0.02
2015 2015-02-18 0.02 0.07 < 0.02
2015 2015-01-13 0.02 0.07 < 0.02
2014 2014-10-16 0.02 0.07 < 0.02
2014 2014-10-15 0.02 0.07 < 0.02
2014 2014-07-22 0.02 0.07 < 0.02
2014 2014-07-22 0.02 0.07 < 0.02
2014 2014-05-07 0.02 0.07 < 0.02
2014 2014-04-16 0.02 0.07 < 0.02
2014 2014-04-16 0.02 0.07 < 0.02
2014 2014-04-09 0.02 0.07 < 0.02
2014 2014-04-09 0.02 0.07 < 0.02
2014 2014-04-02 0.02 0.07 < 0.02
2014 2014-01-16 0.02 0.07 < 0.02
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.02 0 < 0.02
2015 2015-12-15 0.02 0 < 0.02
2015 2015-04-21 0.02 0 < 0.02
2015 2015-03-25 0.02 0 < 0.02
2015 2015-02-18 0.02 0 < 0.02
2015 2015-02-18 0.02 0 < 0.02
2015 2015-01-13 0.02 0 < 0.02
2014 2014-10-16 0.02 0 < 0.02
2014 2014-10-15 0.02 0 < 0.02
2014 2014-07-22 0.02 0 < 0.02
2014 2014-07-22 0.02 0 < 0.02
2014 2014-05-07 0.02 0 < 0.02
2014 2014-04-16 0.02 0 < 0.02
2014 2014-04-16 0.02 0 < 0.02
2014 2014-04-09 0.02 0 < 0.02
2014 2014-04-09 0.02 0 < 0.02
2014 2014-04-02 0.02 0 < 0.02
2014 2014-01-16 0.02 0 < 0.02
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.1 0.0103 < 0.1
2015 2015-12-15 0.1 0.0103 < 0.1
2015 2015-04-21 0.1 0.0103 < 0.1
2015 2015-03-25 0.1 0.0103 < 0.1
2015 2015-02-18 0.1 0.0103 < 0.1
2015 2015-02-18 0.1 0.0103 < 0.1
2015 2015-01-13 0.1 0.0103 < 0.1
2014 2014-11-24 0.1 0.0103 < 0.1
2014 2014-10-16 0.1 0.0103 < 0.1
2014 2014-07-22 0.1 0.0103 < 0.1
2014 2014-07-22 0.1 0.0103 < 0.1
2014 2014-05-07 0.1 0.0103 < 0.1
2014 2014-04-23 0.1 0.0103 < 0.1
2014 2014-04-16 0.1 0.0103 < 0.1
2014 2014-04-16 0.1 0.0103 < 0.1
2014 2014-04-09 0.1 0.0103 < 0.1
2014 2014-04-09 0.1 0.0103 < 0.1
2014 2014-01-16 0.1 0.0103 < 0.1
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.2 2.69 < 0.2
2015 2015-12-15 0.2 2.69 < 0.2
2015 2015-04-21 0.2 2.69 < 0.2
2015 2015-03-25 0.2 2.69 < 0.2
2015 2015-02-18 0.2 2.69 < 0.2
2015 2015-02-18 0.2 2.69 < 0.2
2015 2015-01-13 0.2 2.69 < 0.2
2014 2014-11-24 0.2 2.69 < 0.2
2014 2014-10-16 0.2 2.69 < 0.2
2014 2014-07-22 0.2 2.69 < 0.2
2014 2014-07-22 0.2 2.69 < 0.2
2014 2014-05-07 0.2 2.69 < 0.2
2014 2014-04-23 0.2 2.69 < 0.2
2014 2014-04-16 0.2 2.69 < 0.2
2014 2014-04-16 0.2 2.69 < 0.2
2014 2014-04-09 0.2 2.69 < 0.2
2014 2014-04-09 0.2 2.69 < 0.2
2014 2014-01-16 0.2 2.69 < 0.2
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.04 0.07 < 0.04
2015 2015-12-15 0.04 0.07 < 0.04
2015 2015-04-21 0.04 0.07 < 0.04
2015 2015-03-25 0.04 0.07 < 0.04
2015 2015-02-18 0.04 0.07 < 0.04
2015 2015-02-18 0.04 0.07 < 0.04
2015 2015-01-13 0.04 0.07 < 0.04
2014 2014-10-16 0.04 0.07 < 0.04
2014 2014-10-15 0.04 0.07 < 0.04
2014 2014-07-22 0.04 0.07 < 0.04
2014 2014-07-22 0.04 0.07 < 0.04
2014 2014-05-07 0.04 0.07 < 0.04
2014 2014-04-16 0.04 0.07 < 0.04
2014 2014-04-16 0.04 0.07 < 0.04
2014 2014-04-09 0.04 0.07 < 0.04
2014 2014-04-09 0.04 0.07 < 0.04
2014 2014-04-02 0.04 0.07 < 0.04
2014 2014-01-16 0.04 0.07 < 0.04
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.09 0 < 0.09
2015 2015-12-15 0.09 0 < 0.09
2015 2015-04-21 0.09 0 < 0.09
2015 2015-03-25 0.09 0 < 0.09
2015 2015-02-18 0.09 0 < 0.09
2015 2015-02-18 0.09 0 < 0.09
2015 2015-01-13 0.09 0 < 0.09
2014 2014-10-16 0.09 0 < 0.09
2014 2014-10-15 0.09 0 < 0.09
2014 2014-07-22 0.09 0 < 0.09
2014 2014-07-22 0.09 0 < 0.09
2014 2014-05-07 0.09 0 < 0.09
2014 2014-04-16 0.09 0 < 0.09
2014 2014-04-16 0.09 0 < 0.09
2014 2014-04-09 0.09 0 < 0.09
2014 2014-04-09 0.09 0 < 0.09
2014 2014-04-02 0.09 0 < 0.09
2014 2014-01-16 0.09 0 < 0.09
HCFC-22 0.08 0 0.0161 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.08 0 < 0.08
2015 2015-12-15 0.08 0 < 0.08
2015 2015-04-21 0.08 0 < 0.08
2015 2015-03-25 0.08 0 < 0.08
2015 2015-02-18 0.08 0 < 0.08
2015 2015-02-18 0.08 0 < 0.08
2015 2015-01-13 0.08 0 < 0.08
2014 2014-11-24 0.08 0 0.14
2014 2014-10-16 0.08 0 < 0.08
2014 2014-07-22 0.08 0 < 0.08
2014 2014-07-22 0.08 0 < 0.08
2014 2014-05-07 0.08 0 < 0.08
2014 2014-04-23 0.08 0 < 0.08
2014 2014-04-16 0.08 0 < 0.08
2014 2014-04-16 0.08 0 0.15
2014 2014-04-09 0.08 0 < 0.08
2014 2014-04-09 0.08 0 < 0.08
2014 2014-01-16 0.08 0 < 0.08
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-01-18 0.03 6.14 < 0.03
2015 2015-12-15 0.03 6.14 < 0.03
2015 2015-04-21 0.03 6.14 < 0.03
2015 2015-03-25 0.03 6.14 < 0.03
2015 2015-02-18 0.03 6.14 < 0.03
2015 2015-02-18 0.03 6.14 < 0.03
2015 2015-01-13 0.03 6.14 < 0.03
2014 2014-11-24 0.03 6.14 < 0.03
2014 2014-10-16 0.03 6.14 < 0.03
2014 2014-07-22 0.03 6.14 < 0.03
2014 2014-07-22 0.03 6.14 < 0.03
2014 2014-05-07 0.03 6.14 < 0.03
2014 2014-04-23 0.03 6.14 < 0.03
2014 2014-04-16 0.03 6.14 < 0.03
2014 2014-04-16 0.03 6.14 < 0.03
2014 2014-04-09 0.03 6.14 < 0.03
2014 2014-04-09 0.03 6.14 < 0.03
2014 2014-01-16 0.03 6.14 < 0.03

Lead and Copper Data


Lead and copper are recorded separately from other contaminants because of the Lead and Copper Rule. As with all other results, these are the findings at the water supply. Lead and copper can be — and often are — added to drinking water in between the water facility and a tap.

Sample ID Contaminant Sampling Start Date Sampling End Date Result
CA49559 lead 2014-01-01 2016-12-31 0mg/L
CA37408 lead 2011-01-01 2013-12-31 0mg/L
011000309176L2ND 6 lead 2009-01-01 2009-12-31 0.006mg/L
011000309224L1ST 6 lead 2009-01-01 2009-12-31 0.008mg/L

Violations


Known violations of the Safe Drinking Water Act as recorded by the EPA.

No violations found for California Water Service - Livermore.


What My Water Data Means


Water data isn't always easy to interpret, but by following the links on this page you should be able to have most of your questions answered. By clicking the name of a water contaminant or secondary substance you can learn about that specific substance. Ultimately this page should give you some insight towards learning if your water is safe, what water filter you should buy (if any), and how well your local water compares against other sources.

Sources


The origin of MyTapWater.org's water data is explained on our Data Sources page.

Why Is My Water Data Not More Recent?


The recency of the data for your ZIP code depends on the last your water source was tested, by a federal, state, or local agency. More information about the timing can be determined by learning about the dataset in question and seeing how often the EPA (other another governing body) mandated testing.