City Of Mountain View Water System

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: CA4310007
Type: Community water system
EPA Region: 09
Primary Service Area: Residential Area
Primary Source: Surface water purchased
Population Served: 76,000 		Contact Information
HOSFELDT, GREGG
HOSFELDT, GREGG
231 NORTH WHISMAN ROAD
MOUNTAIN VIEW, CA 94043
[email protected]

This public water system services 1 municipality in 1 county.

Summary Results

A summary view of tests in which a water contaminant found to exceed the Maximum Contaminant Level (MCL) set by the EPA.

Maximum Contaminant Levels Exceeded (by year):

2013   (0) 2014   (1) 2015   (0) 2016   (0) 2017   (0) 2018   (3)
chlorate anatoxin-a
cylindrospermopsin
total microcystin

Contaminant Detailed Results

This a view of violations of maximum contaminant levels. Use the expanded view see result data for a drinking water contaminant, the minimum level that can be recognized in a test (MRL), and upper limit that is considered healthy (HRL).

anatoxin-a

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-20 0.03 0.00 < 0.03
2018 2018-06-20 0.03 0.00 < 0.03
2018 2018-06-05 0.03 0.00 < 0.03
2018 2018-06-05 0.03 0.00 < 0.03
2018 2018-05-15 0.03 0.00 < 0.03
2018 2018-05-15 0.03 0.00 < 0.03
2018 2018-05-01 0.03 0.00 < 0.03
2018 2018-05-01 0.03 0.00 < 0.03

cylindrospermopsin

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-20 0.09 0.00 < 0.09
2018 2018-06-20 0.09 0.00 < 0.09
2018 2018-06-05 0.09 0.00 < 0.09
2018 2018-06-05 0.09 0.00 < 0.09
2018 2018-05-15 0.09 0.00 < 0.09
2018 2018-05-15 0.09 0.00 < 0.09
2018 2018-05-01 0.09 0.00 < 0.09
2018 2018-05-01 0.09 0.00 < 0.09

total microcystin

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-07-17 0.3 0.00 < 0.3
2018 2018-07-03 0.3 0.00 < 0.3
2018 2018-06-20 0.3 0.00 < 0.3
2018 2018-06-20 0.3 0.00 < 0.3
2018 2018-06-05 0.3 0.00 < 0.3
2018 2018-06-05 0.3 0.00 < 0.3

chlorate

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2014 2014-11-19 20 210 150
2014 2014-11-19 20 210 190
2014 2014-11-19 20 210 150
2014 2014-11-19 20 210 170
2014 2014-08-21 20 210 110
2014 2014-08-21 20 210 170
2014 2014-08-21 20 210 210
2014 2014-08-21 20 210 130
2014 2014-08-21 20 210 160
2014 2014-08-21 20 210 140
2014 2014-08-21 20 210 160
2014 2014-08-21 20 210 190
2014 2014-05-08 20 210 53
2014 2014-05-08 20 210 110
2014 2014-05-08 20 210 54
2014 2014-05-08 20 210 150
2014 2014-02-19 20 210 71
2014 2014-02-19 20 210 65
2014 2014-02-19 20 210 140
2014 2014-02-19 20 210 76
2014 2014-02-19 20 210 140
2014 2014-02-19 20 210 65
2014 2014-02-19 20 210 77
2014 2014-02-19 20 210 64
2014 2014-02-19 20 210 70
2014 2014-02-19 20 210 120

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Other Water Contaminants Tested

The following contaminants were tested and found to be within national EPA guidelines.

Contaminant MRLMinimum Reporting Level HRLHealth Risk Limit Avg Result
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.03 6.14 < 0.03
2014 2014-11-19 0.03 6.14 < 0.03
2014 2014-08-21 0.03 6.14 < 0.03
2014 2014-08-21 0.03 6.14 < 0.03
2014 2014-08-21 0.03 6.14 < 0.03
2014 2014-08-21 0.03 6.14 < 0.03
2014 2014-05-08 0.03 6.14 < 0.03
2014 2014-05-08 0.03 6.14 < 0.03
2014 2014-02-19 0.03 6.14 < 0.03
2014 2014-02-19 0.03 6.14 < 0.03
2014 2014-02-19 0.03 6.14 < 0.03
2014 2014-02-19 0.03 6.14 < 0.03
2014 2014-02-19 0.03 6.14 < 0.03
[+] Expand Test Data
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.03 0.0004 < 0.03
2014 2014-11-19 0.03 0.0004 < 0.03
2014 2014-08-21 0.03 0.0004 < 0.03
2014 2014-08-21 0.03 0.0004 < 0.03
2014 2014-08-21 0.03 0.0004 < 0.03
2014 2014-08-21 0.03 0.0004 < 0.03
2014 2014-05-08 0.03 0.0004 < 0.03
2014 2014-05-08 0.03 0.0004 < 0.03
2014 2014-02-19 0.03 0.0004 < 0.03
2014 2014-02-19 0.03 0.0004 < 0.03
2014 2014-02-19 0.03 0.0004 < 0.03
2014 2014-02-19 0.03 0.0004 < 0.03
2014 2014-02-19 0.03 0.0004 < 0.03
[+] Expand Test Data
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.1 0.0103 < 0.1
2014 2014-11-19 0.1 0.0103 < 0.1
2014 2014-08-21 0.1 0.0103 < 0.1
2014 2014-08-21 0.1 0.0103 < 0.1
2014 2014-08-21 0.1 0.0103 < 0.1
2014 2014-08-21 0.1 0.0103 < 0.1
2014 2014-05-08 0.1 0.0103 < 0.1
2014 2014-05-08 0.1 0.0103 < 0.1
2014 2014-02-19 0.1 0.0103 < 0.1
2014 2014-02-19 0.1 0.0103 < 0.1
2014 2014-02-19 0.1 0.0103 < 0.1
2014 2014-02-19 0.1 0.0103 < 0.1
2014 2014-02-19 0.1 0.0103 < 0.1
[+] Expand Test Data
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.07 0.35 < 0.07
2014 2014-11-19 0.07 0.35 < 0.07
2014 2014-08-21 0.07 0.35 < 0.07
2014 2014-08-21 0.07 0.35 < 0.07
2014 2014-08-21 0.07 0.35 < 0.07
2014 2014-08-21 0.07 0.35 < 0.07
2014 2014-05-08 0.07 0.35 < 0.07
2014 2014-05-08 0.07 0.35 < 0.07
2014 2014-02-19 0.07 0.35 < 0.07
2014 2014-02-19 0.07 0.35 < 0.07
2014 2014-02-19 0.07 0.35 < 0.07
2014 2014-02-19 0.07 0.35 < 0.07
2014 2014-02-19 0.07 0.35 < 0.07
[+] Expand Test Data
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.2 140 < 0.2
2014 2014-11-19 0.2 140 < 0.2
2014 2014-08-21 0.2 140 < 0.2
2014 2014-08-21 0.2 140 < 0.2
2014 2014-08-21 0.2 140 < 0.2
2014 2014-08-21 0.2 140 < 0.2
2014 2014-05-08 0.2 140 < 0.2
2014 2014-05-08 0.2 140 < 0.2
2014 2014-02-19 0.2 140 < 0.2
2014 2014-02-19 0.2 140 < 0.2
2014 2014-02-19 0.2 140 < 0.2
2014 2014-02-19 0.2 140 < 0.2
2014 2014-02-19 0.2 140 < 0.2
[+] Expand Test Data
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.2 2.69 < 0.2
2014 2014-11-19 0.2 2.69 < 0.2
2014 2014-08-21 0.2 2.69 < 0.2
2014 2014-08-21 0.2 2.69 < 0.2
2014 2014-08-21 0.2 2.69 < 0.2
2014 2014-08-21 0.2 2.69 < 0.2
2014 2014-05-08 0.2 2.69 < 0.2
2014 2014-05-08 0.2 2.69 < 0.2
2014 2014-02-19 0.2 2.69 < 0.2
2014 2014-02-19 0.2 2.69 < 0.2
2014 2014-02-19 0.2 2.69 < 0.2
2014 2014-02-19 0.2 2.69 < 0.2
2014 2014-02-19 0.2 2.69 < 0.2
[+] Expand Test Data
chromium 0.2 100 0.3462 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.2 100 < 0.2
2014 2014-11-19 0.2 100 0.2
2014 2014-11-19 0.2 100 < 0.2
2014 2014-11-19 0.2 100 0.2
2014 2014-08-21 0.2 100 2
2014 2014-08-21 0.2 100 < 0.2
2014 2014-08-21 0.2 100 < 0.2
2014 2014-08-21 0.2 100 1.5
2014 2014-08-21 0.2 100 < 0.2
2014 2014-08-21 0.2 100 0.2
2014 2014-08-21 0.2 100 0.6
2014 2014-08-21 0.2 100 < 0.2
2014 2014-05-08 0.2 100 < 0.2
2014 2014-05-08 0.2 100 < 0.2
2014 2014-05-08 0.2 100 < 0.2
2014 2014-05-08 0.2 100 < 0.2
2014 2014-02-19 0.2 100 0.8
2014 2014-02-19 0.2 100 < 0.2
2014 2014-02-19 0.2 100 < 0.2
2014 2014-02-19 0.2 100 1.5
2014 2014-02-19 0.2 100 1.5
2014 2014-02-19 0.2 100 < 0.2
2014 2014-02-19 0.2 100 0.3
2014 2014-02-19 0.2 100 < 0.2
2014 2014-02-19 0.2 100 0.2
2014 2014-02-19 0.2 100 < 0.2
[+] Expand Test Data
chromium-6 0.03 0 0.3119 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.03 0 0.04
2014 2014-11-19 0.03 0 0.09
2014 2014-11-19 0.03 0 0.05
2014 2014-11-19 0.03 0 0.1
2014 2014-08-21 0.03 0 1.2
2014 2014-08-21 0.03 0 0.04
2014 2014-08-21 0.03 0 0.06
2014 2014-08-21 0.03 0 1.5
2014 2014-08-21 0.03 0 0.04
2014 2014-08-21 0.03 0 0.21
2014 2014-08-21 0.03 0 0.07
2014 2014-08-21 0.03 0 0.07
2014 2014-05-08 0.03 0 < 0.03
2014 2014-05-08 0.03 0 0.12
2014 2014-05-08 0.03 0 0.05
2014 2014-05-08 0.03 0 0.11
2014 2014-02-19 0.03 0 0.81
2014 2014-02-19 0.03 0 < 0.03
2014 2014-02-19 0.03 0 0.09
2014 2014-02-19 0.03 0 1.1
2014 2014-02-19 0.03 0 1.6
2014 2014-02-19 0.03 0 0.11
2014 2014-02-19 0.03 0 0.29
2014 2014-02-19 0.03 0 0.09
2014 2014-02-19 0.03 0 0.19
2014 2014-02-19 0.03 0 0.08
[+] Expand Test Data
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 1 70 < 1
2014 2014-11-19 1 70 < 1
2014 2014-11-19 1 70 < 1
2014 2014-11-19 1 70 < 1
2014 2014-08-21 1 70 < 1
2014 2014-08-21 1 70 < 1
2014 2014-08-21 1 70 < 1
2014 2014-08-21 1 70 < 1
2014 2014-08-21 1 70 < 1
2014 2014-08-21 1 70 < 1
2014 2014-08-21 1 70 < 1
2014 2014-08-21 1 70 < 1
2014 2014-05-08 1 70 < 1
2014 2014-05-08 1 70 < 1
2014 2014-05-08 1 70 < 1
2014 2014-05-08 1 70 < 1
2014 2014-02-19 1 70 < 1
2014 2014-02-19 1 70 < 1
2014 2014-02-19 1 70 < 1
2014 2014-02-19 1 70 < 1
2014 2014-02-19 1 70 < 1
2014 2014-02-19 1 70 < 1
2014 2014-02-19 1 70 < 1
2014 2014-02-19 1 70 < 1
2014 2014-02-19 1 70 < 1
2014 2014-02-19 1 70 < 1
[+] Expand Test Data
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.06 90 < 0.06
2014 2014-11-19 0.06 90 < 0.06
2014 2014-08-21 0.06 90 < 0.06
2014 2014-08-21 0.06 90 < 0.06
2014 2014-08-21 0.06 90 < 0.06
2014 2014-08-21 0.06 90 < 0.06
2014 2014-05-08 0.06 90 < 0.06
2014 2014-05-08 0.06 90 < 0.06
2014 2014-02-19 0.06 90 < 0.06
2014 2014-02-19 0.06 90 < 0.06
2014 2014-02-19 0.06 90 < 0.06
2014 2014-02-19 0.06 90 < 0.06
2014 2014-02-19 0.06 90 < 0.06
[+] Expand Test Data
HCFC-22 0.08 0 0.0669 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.08 0 < 0.08
2014 2014-11-19 0.08 0 < 0.08
2014 2014-08-21 0.08 0 0.57
2014 2014-08-21 0.08 0 < 0.08
2014 2014-08-21 0.08 0 < 0.08
2014 2014-08-21 0.08 0 < 0.08
2014 2014-05-08 0.08 0 < 0.08
2014 2014-05-08 0.08 0 < 0.08
2014 2014-02-19 0.08 0 0.3
2014 2014-02-19 0.08 0 < 0.08
2014 2014-02-19 0.08 0 < 0.08
2014 2014-02-19 0.08 0 < 0.08
2014 2014-02-19 0.08 0 < 0.08
[+] Expand Test Data
molybdenum 1 40 0.8154 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 1 40 < 1
2014 2014-11-19 1 40 1.4
2014 2014-11-19 1 40 < 1
2014 2014-11-19 1 40 1.5
2014 2014-08-21 1 40 < 1
2014 2014-08-21 1 40 < 1
2014 2014-08-21 1 40 1.4
2014 2014-08-21 1 40 1
2014 2014-08-21 1 40 < 1
2014 2014-08-21 1 40 < 1
2014 2014-08-21 1 40 < 1
2014 2014-08-21 1 40 1.5
2014 2014-05-08 1 40 < 1
2014 2014-05-08 1 40 1.7
2014 2014-05-08 1 40 < 1
2014 2014-05-08 1 40 1.7
2014 2014-02-19 1 40 1.7
2014 2014-02-19 1 40 < 1
2014 2014-02-19 1 40 2.9
2014 2014-02-19 1 40 1.2
2014 2014-02-19 1 40 1.2
2014 2014-02-19 1 40 < 1
2014 2014-02-19 1 40 1.1
2014 2014-02-19 1 40 < 1
2014 2014-02-19 1 40 < 1
2014 2014-02-19 1 40 2.9
[+] Expand Test Data
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.09 0 < 0.09
2014 2014-11-19 0.09 0 < 0.09
2014 2014-08-21 0.09 0 < 0.09
2014 2014-08-21 0.09 0 < 0.09
2014 2014-08-21 0.09 0 < 0.09
2014 2014-08-21 0.09 0 < 0.09
2014 2014-05-08 0.09 0 < 0.09
2014 2014-05-08 0.09 0 < 0.09
2014 2014-02-19 0.09 0 < 0.09
2014 2014-02-19 0.09 0 < 0.09
2014 2014-02-19 0.09 0 < 0.09
2014 2014-02-19 0.09 0 < 0.09
2014 2014-02-19 0.09 0 < 0.09
[+] Expand Test Data
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.01 0 < 0.01
2014 2014-11-19 0.01 0 < 0.01
2014 2014-08-21 0.01 0 < 0.01
2014 2014-08-21 0.01 0 < 0.01
2014 2014-08-21 0.01 0 < 0.01
2014 2014-08-21 0.01 0 < 0.01
2014 2014-05-08 0.01 0 < 0.01
2014 2014-05-08 0.01 0 < 0.01
2014 2014-02-19 0.01 0 < 0.01
2014 2014-02-19 0.01 0 < 0.01
2014 2014-02-19 0.01 0 < 0.01
2014 2014-02-19 0.01 0 < 0.01
2014 2014-02-19 0.01 0 < 0.01
[+] Expand Test Data
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.03 0 < 0.03
2014 2014-11-19 0.03 0 < 0.03
2014 2014-08-21 0.03 0 < 0.03
2014 2014-08-21 0.03 0 < 0.03
2014 2014-08-21 0.03 0 < 0.03
2014 2014-08-21 0.03 0 < 0.03
2014 2014-05-08 0.03 0 < 0.03
2014 2014-05-08 0.03 0 < 0.03
2014 2014-02-19 0.03 0 < 0.03
2014 2014-02-19 0.03 0 < 0.03
2014 2014-02-19 0.03 0 < 0.03
2014 2014-02-19 0.03 0 < 0.03
2014 2014-02-19 0.03 0 < 0.03
[+] Expand Test Data
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.02 0 < 0.02
2014 2014-11-19 0.02 0 < 0.02
2014 2014-08-21 0.02 0 < 0.02
2014 2014-08-21 0.02 0 < 0.02
2014 2014-08-21 0.02 0 < 0.02
2014 2014-08-21 0.02 0 < 0.02
2014 2014-05-08 0.02 0 < 0.02
2014 2014-05-08 0.02 0 < 0.02
2014 2014-02-19 0.02 0 < 0.02
2014 2014-02-19 0.02 0 < 0.02
2014 2014-02-19 0.02 0 < 0.02
2014 2014-02-19 0.02 0 < 0.02
2014 2014-02-19 0.02 0 < 0.02
[+] Expand Test Data
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.02 0.07 < 0.02
2014 2014-11-19 0.02 0.07 < 0.02
2014 2014-08-21 0.02 0.07 < 0.02
2014 2014-08-21 0.02 0.07 < 0.02
2014 2014-08-21 0.02 0.07 < 0.02
2014 2014-08-21 0.02 0.07 < 0.02
2014 2014-05-08 0.02 0.07 < 0.02
2014 2014-05-08 0.02 0.07 < 0.02
2014 2014-02-19 0.02 0.07 < 0.02
2014 2014-02-19 0.02 0.07 < 0.02
2014 2014-02-19 0.02 0.07 < 0.02
2014 2014-02-19 0.02 0.07 < 0.02
2014 2014-02-19 0.02 0.07 < 0.02
[+] Expand Test Data
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.04 0.07 < 0.04
2014 2014-11-19 0.04 0.07 < 0.04
2014 2014-08-21 0.04 0.07 < 0.04
2014 2014-08-21 0.04 0.07 < 0.04
2014 2014-08-21 0.04 0.07 < 0.04
2014 2014-08-21 0.04 0.07 < 0.04
2014 2014-05-08 0.04 0.07 < 0.04
2014 2014-05-08 0.04 0.07 < 0.04
2014 2014-02-19 0.04 0.07 < 0.04
2014 2014-02-19 0.04 0.07 < 0.04
2014 2014-02-19 0.04 0.07 < 0.04
2014 2014-02-19 0.04 0.07 < 0.04
2014 2014-02-19 0.04 0.07 < 0.04
[+] Expand Test Data
strontium 0.3 1500 187.9231 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.3 1500 16
2014 2014-11-19 0.3 1500 330
2014 2014-11-19 0.3 1500 27
2014 2014-11-19 0.3 1500 330
2014 2014-08-21 0.3 1500 430
2014 2014-08-21 0.3 1500 15
2014 2014-08-21 0.3 1500 280
2014 2014-08-21 0.3 1500 350
2014 2014-08-21 0.3 1500 17
2014 2014-08-21 0.3 1500 92
2014 2014-08-21 0.3 1500 23
2014 2014-08-21 0.3 1500 290
2014 2014-05-08 0.3 1500 13
2014 2014-05-08 0.3 1500 260
2014 2014-05-08 0.3 1500 26
2014 2014-05-08 0.3 1500 250
2014 2014-02-19 0.3 1500 350
2014 2014-02-19 0.3 1500 14
2014 2014-02-19 0.3 1500 340
2014 2014-02-19 0.3 1500 370
2014 2014-02-19 0.3 1500 370
2014 2014-02-19 0.3 1500 48
2014 2014-02-19 0.3 1500 140
2014 2014-02-19 0.3 1500 41
2014 2014-02-19 0.3 1500 94
2014 2014-02-19 0.3 1500 370
[+] Expand Test Data
vanadium 0.2 21 2.2769 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-19 0.2 21 < 0.2
2014 2014-11-19 0.2 21 2.4
2014 2014-11-19 0.2 21 0.4
2014 2014-11-19 0.2 21 2.4
2014 2014-08-21 0.2 21 5.6
2014 2014-08-21 0.2 21 < 0.2
2014 2014-08-21 0.2 21 2.1
2014 2014-08-21 0.2 21 6.1
2014 2014-08-21 0.2 21 0.5
2014 2014-08-21 0.2 21 1.7
2014 2014-08-21 0.2 21 0.4
2014 2014-08-21 0.2 21 2
2014 2014-05-08 0.2 21 < 0.2
2014 2014-05-08 0.2 21 2.3
2014 2014-05-08 0.2 21 0.4
2014 2014-05-08 0.2 21 2.3
2014 2014-02-19 0.2 21 6.8
2014 2014-02-19 0.2 21 < 0.2
2014 2014-02-19 0.2 21 1.9
2014 2014-02-19 0.2 21 9.4
2014 2014-02-19 0.2 21 6.1
2014 2014-02-19 0.2 21 0.8
2014 2014-02-19 0.2 21 2.4
2014 2014-02-19 0.2 21 0.7
2014 2014-02-19 0.2 21 0.8
2014 2014-02-19 0.2 21 1.7
[+] Expand Test Data

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 level. Lead and copper can be — and often are — deposited in drinking water in between the water facility and your tap.

Sample ID Contaminant Sampling Start Date Sampling End Date Result
CA53869 lead 2014-01-01 2016-12-31 0.0077mg/L
CA38917 lead 2013-01-01 2013-12-31 0.0076mg/L
CA53842 lead 2011-01-01 2013-12-31 0.0076mg/L

Violations

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

Compliance Dates Rule Violation Type Contaminant Name Status
2015-03-01 - 2015-03-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
2001-05-01 - 2001-05-31 Inorganic Chemicals Monitoring, Regular Fluoride Known
2001-03-01 - 2001-03-31 Inorganic Chemicals Monitoring, Regular Fluoride Known
2013-07-01 - N/A Ground Water Rule Monitoring, Source Water (GWR) E. COLI Open
- N/A Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
- N/A Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
- N/A Miscellaneous Notification, Public - Known

Local Water Testing

Find a lab in your area so you can get your tap or well water tested. This list contains both governmental and private labs, all of which are EPA-certified for drinking water testing.

Lab Location Zip Code
Dysert Environmental, Inc. San Carlos, CA 94070
Cel Analytical, Inc. San Francisco, CA 94103
Anresco Laboratories San Francisco, CA 94124

Water Bill Information

Convenient information about your water service.

Unable to identify any billing information about City Of Mountain View (CA4310007).

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.