City Of Fountain Valley 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: CA3010069
Type: Community water system
EPA Region: 09
Primary Service Area: Residential Area
Primary Source: Surface water purchased
Population Served: 56,464 		Contact Information
SPRAGUE, MARK
SPRAGUE, MARK
17300 MT. HERRMANN STREET
FOUNTAIN VALLEY, CA 92708
[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   (1) 2014   (0) 2015   (0) 2016   (0) 2017   (0) 2018   (0)
1,4-dioxane

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).

1,4-dioxane

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2013 2013-12-09 0.07 0.35 < 0.07
2013 2013-09-03 0.07 0.35 < 0.07
2013 2013-07-10 0.07 0.35 2.07
2013 2013-07-10 0.07 0.35 0.33
2013 2013-07-09 0.07 0.35 < 0.07
2013 2013-07-09 0.07 0.35 1.85
2013 2013-07-09 0.07 0.35 4.13
2013 2013-06-10 0.07 0.35 < 0.07
2013 2013-03-04 0.07 0.35 < 0.07
2013 2013-01-10 0.07 0.35 2.01
2013 2013-01-09 0.07 0.35 0.22
2013 2013-01-09 0.07 0.35 3.5
2013 2013-01-08 0.07 0.35 2.28
2013 2013-01-08 0.07 0.35 < 0.07
2013 2013-01-07 0.07 0.35 3.3

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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
chlorate 20 210 29.8476 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-12-16 20 210 52.4
2013 2013-12-09 20 210 52.6
2013 2013-09-16 20 210 38.4
2013 2013-09-03 20 210 67.6
2013 2013-07-10 20 210 < 20
2013 2013-07-10 20 210 27.3
2013 2013-07-09 20 210 56.5
2013 2013-07-09 20 210 33.3
2013 2013-07-09 20 210 < 20
2013 2013-07-09 20 210 < 20
2013 2013-06-24 20 210 < 20
2013 2013-06-10 20 210 50.5
2013 2013-03-18 20 210 33.4
2013 2013-03-04 20 210 41.2
2013 2013-01-10 20 210 < 20
2013 2013-01-09 20 210 94.6
2013 2013-01-09 20 210 < 20
2013 2013-01-08 20 210 < 20
2013 2013-01-08 20 210 42.2
2013 2013-01-07 20 210 36.8
2013 2013-01-07 20 210 < 20
[+] Expand Test Data
chromium 0.2 100 0.5781 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-02-05 0.2 100 0.5
2013 2013-12-16 0.2 100 < 0.2
2013 2013-09-16 0.2 100 < 0.2
2013 2013-09-03 0.2 100 < 0.2
2013 2013-07-10 0.2 100 0.6
2013 2013-07-10 0.2 100 1.5
2013 2013-07-09 0.2 100 < 0.2
2013 2013-07-09 0.2 100 2.3
2013 2013-07-09 0.2 100 1.1
2013 2013-07-09 0.2 100 < 0.2
2013 2013-06-24 0.2 100 0.5
2013 2013-06-10 0.2 100 < 0.2
2013 2013-03-18 0.2 100 < 0.2
2013 2013-03-04 0.2 100 < 0.2
2013 2013-01-10 0.2 100 1
2013 2013-01-09 0.2 100 1.5
2013 2013-01-09 0.2 100 < 0.2
2013 2013-01-08 0.2 100 0.74
2013 2013-01-08 0.2 100 2.4
2013 2013-01-07 0.2 100 < 0.2
2013 2013-01-07 0.2 100 < 0.2
[+] Expand Test Data
chromium-6 0.03 0 0.7367 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-12-16 0.03 0 0.06
2013 2013-12-09 0.03 0 0.03
2013 2013-09-16 0.03 0 0.17
2013 2013-09-03 0.03 0 0.06
2013 2013-07-10 0.03 0 0.79
2013 2013-07-10 0.03 0 1.71
2013 2013-07-09 0.03 0 0.2
2013 2013-07-09 0.03 0 2.77
2013 2013-07-09 0.03 0 1.23
2013 2013-07-09 0.03 0 0.31
2013 2013-06-24 0.03 0 0.6
2013 2013-06-10 0.03 0 0.08
2013 2013-03-18 0.03 0 0.16
2013 2013-03-04 0.03 0 0.11
2013 2013-01-10 0.03 0 1.16
2013 2013-01-09 0.03 0 1.75
2013 2013-01-09 0.03 0 0.32
2013 2013-01-08 0.03 0 0.89
2013 2013-01-08 0.03 0 2.77
2013 2013-01-07 0.03 0 0.04
2013 2013-01-07 0.03 0 0.26
[+] Expand Test Data
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-02-05 1 70 < 1
2013 2013-12-16 1 70 < 1
2013 2013-09-16 1 70 < 1
2013 2013-09-03 1 70 < 1
2013 2013-07-10 1 70 < 1
2013 2013-07-10 1 70 < 1
2013 2013-07-09 1 70 < 1
2013 2013-07-09 1 70 < 1
2013 2013-07-09 1 70 < 1
2013 2013-07-09 1 70 < 1
2013 2013-06-24 1 70 < 1
2013 2013-06-10 1 70 < 1
2013 2013-03-18 1 70 < 1
2013 2013-03-04 1 70 < 1
2013 2013-01-10 1 70 < 1
2013 2013-01-09 1 70 < 1
2013 2013-01-09 1 70 < 1
2013 2013-01-08 1 70 < 1
2013 2013-01-08 1 70 < 1
2013 2013-01-07 1 70 < 1
2013 2013-01-07 1 70 < 1
[+] Expand Test Data
molybdenum 1 40 4.459 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-02-05 1 40 5
2013 2013-12-16 1 40 4.6
2013 2013-09-16 1 40 3.8
2013 2013-09-03 1 40 4.5
2013 2013-07-10 1 40 3.9
2013 2013-07-10 1 40 5.5
2013 2013-07-09 1 40 4.6
2013 2013-07-09 1 40 5.8
2013 2013-07-09 1 40 4
2013 2013-07-09 1 40 3.5
2013 2013-06-24 1 40 3.6
2013 2013-06-10 1 40 4.6
2013 2013-03-18 1 40 4.5
2013 2013-03-04 1 40 4.7
2013 2013-01-10 1 40 4.4
2013 2013-01-09 1 40 5.8
2013 2013-01-09 1 40 3.1
2013 2013-01-08 1 40 4.04
2013 2013-01-08 1 40 5.9
2013 2013-01-07 1 40 4.1
2013 2013-01-07 1 40 3.7
[+] Expand Test Data
strontium 0.3 1500 761.0476 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-02-05 0.3 1500 1070
2013 2013-12-16 0.3 1500 1050
2013 2013-09-16 0.3 1500 868
2013 2013-09-03 0.3 1500 899
2013 2013-07-10 0.3 1500 491
2013 2013-07-10 0.3 1500 491
2013 2013-07-09 0.3 1500 963
2013 2013-07-09 0.3 1500 486
2013 2013-07-09 0.3 1500 516
2013 2013-07-09 0.3 1500 858
2013 2013-06-24 0.3 1500 739
2013 2013-06-10 0.3 1500 901
2013 2013-03-18 0.3 1500 885
2013 2013-03-04 0.3 1500 854
2013 2013-01-10 0.3 1500 632
2013 2013-01-09 0.3 1500 524
2013 2013-01-09 0.3 1500 971
2013 2013-01-08 0.3 1500 487
2013 2013-01-08 0.3 1500 510
2013 2013-01-07 0.3 1500 839
2013 2013-01-07 0.3 1500 948
[+] Expand Test Data
vanadium 0.2 21 3.0162 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-02-05 0.2 21 2.3
2013 2013-12-16 0.2 21 2.7
2013 2013-09-16 0.2 21 3.2
2013 2013-09-03 0.2 21 2.9
2013 2013-07-10 0.2 21 2.8
2013 2013-07-10 0.2 21 2.8
2013 2013-07-09 0.2 21 2.9
2013 2013-07-09 0.2 21 2.9
2013 2013-07-09 0.2 21 3.5
2013 2013-07-09 0.2 21 3.4
2013 2013-06-24 0.2 21 3.4
2013 2013-06-10 0.2 21 3
2013 2013-03-18 0.2 21 3.1
2013 2013-03-04 0.2 21 2.8
2013 2013-01-10 0.2 21 3.3
2013 2013-01-09 0.2 21 2.9
2013 2013-01-09 0.2 21 3.5
2013 2013-01-08 0.2 21 2.84
2013 2013-01-08 0.2 21 3
2013 2013-01-07 0.2 21 2.6
2013 2013-01-07 0.2 21 3.5
[+] Expand Test Data
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-12-09 0.03 6.14 < 0.03
2013 2013-09-03 0.03 6.14 < 0.03
2013 2013-07-10 0.03 6.14 < 0.03
2013 2013-07-10 0.03 6.14 < 0.03
2013 2013-07-09 0.03 6.14 < 0.03
2013 2013-07-09 0.03 6.14 < 0.03
2013 2013-07-09 0.03 6.14 < 0.03
2013 2013-06-10 0.03 6.14 < 0.03
2013 2013-03-04 0.03 6.14 < 0.03
2013 2013-01-10 0.03 6.14 < 0.03
2013 2013-01-09 0.03 6.14 < 0.03
2013 2013-01-09 0.03 6.14 < 0.03
2013 2013-01-08 0.03 6.14 < 0.03
2013 2013-01-08 0.03 6.14 < 0.03
2013 2013-01-07 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
2013 2013-12-09 0.03 0.0004 < 0.03
2013 2013-09-03 0.03 0.0004 < 0.03
2013 2013-07-10 0.03 0.0004 < 0.03
2013 2013-07-10 0.03 0.0004 < 0.03
2013 2013-07-09 0.03 0.0004 < 0.03
2013 2013-07-09 0.03 0.0004 < 0.03
2013 2013-07-09 0.03 0.0004 < 0.03
2013 2013-06-10 0.03 0.0004 < 0.03
2013 2013-03-04 0.03 0.0004 < 0.03
2013 2013-01-10 0.03 0.0004 < 0.03
2013 2013-01-09 0.03 0.0004 < 0.03
2013 2013-01-09 0.03 0.0004 < 0.03
2013 2013-01-08 0.03 0.0004 < 0.03
2013 2013-01-08 0.03 0.0004 < 0.03
2013 2013-01-07 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
2013 2013-12-09 0.1 0.0103 < 0.1
2013 2013-09-03 0.1 0.0103 < 0.1
2013 2013-07-10 0.1 0.0103 < 0.1
2013 2013-07-10 0.1 0.0103 < 0.1
2013 2013-07-09 0.1 0.0103 < 0.1
2013 2013-07-09 0.1 0.0103 < 0.1
2013 2013-07-09 0.1 0.0103 < 0.1
2013 2013-06-10 0.1 0.0103 < 0.1
2013 2013-03-04 0.1 0.0103 < 0.1
2013 2013-01-10 0.1 0.0103 < 0.1
2013 2013-01-09 0.1 0.0103 < 0.1
2013 2013-01-09 0.1 0.0103 < 0.1
2013 2013-01-08 0.1 0.0103 < 0.1
2013 2013-01-08 0.1 0.0103 < 0.1
2013 2013-01-07 0.1 0.0103 < 0.1
[+] Expand Test Data
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-12-09 0.2 140 < 0.2
2013 2013-09-03 0.2 140 < 0.2
2013 2013-07-10 0.2 140 < 0.2
2013 2013-07-10 0.2 140 < 0.2
2013 2013-07-09 0.2 140 < 0.2
2013 2013-07-09 0.2 140 < 0.2
2013 2013-07-09 0.2 140 < 0.2
2013 2013-06-10 0.2 140 < 0.2
2013 2013-03-04 0.2 140 < 0.2
2013 2013-01-10 0.2 140 < 0.2
2013 2013-01-09 0.2 140 < 0.2
2013 2013-01-09 0.2 140 < 0.2
2013 2013-01-08 0.2 140 < 0.2
2013 2013-01-08 0.2 140 < 0.2
2013 2013-01-07 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
2013 2013-12-09 0.2 2.69 < 0.2
2013 2013-09-03 0.2 2.69 < 0.2
2013 2013-07-10 0.2 2.69 < 0.2
2013 2013-07-10 0.2 2.69 < 0.2
2013 2013-07-09 0.2 2.69 < 0.2
2013 2013-07-09 0.2 2.69 < 0.2
2013 2013-07-09 0.2 2.69 < 0.2
2013 2013-06-10 0.2 2.69 < 0.2
2013 2013-03-04 0.2 2.69 < 0.2
2013 2013-01-10 0.2 2.69 < 0.2
2013 2013-01-09 0.2 2.69 < 0.2
2013 2013-01-09 0.2 2.69 < 0.2
2013 2013-01-08 0.2 2.69 < 0.2
2013 2013-01-08 0.2 2.69 < 0.2
2013 2013-01-07 0.2 2.69 < 0.2
[+] Expand Test Data
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-12-09 0.06 90 < 0.06
2013 2013-09-03 0.06 90 < 0.06
2013 2013-07-10 0.06 90 < 0.06
2013 2013-07-10 0.06 90 < 0.06
2013 2013-07-09 0.06 90 < 0.06
2013 2013-07-09 0.06 90 < 0.06
2013 2013-07-09 0.06 90 < 0.06
2013 2013-06-10 0.06 90 < 0.06
2013 2013-03-04 0.06 90 < 0.06
2013 2013-01-10 0.06 90 < 0.06
2013 2013-01-09 0.06 90 < 0.06
2013 2013-01-09 0.06 90 < 0.06
2013 2013-01-08 0.06 90 < 0.06
2013 2013-01-08 0.06 90 < 0.06
2013 2013-01-07 0.06 90 < 0.06
[+] Expand Test Data
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-12-09 0.08 0 < 0.08
2013 2013-09-03 0.08 0 < 0.08
2013 2013-07-10 0.08 0 < 0.08
2013 2013-07-10 0.08 0 < 0.08
2013 2013-07-09 0.08 0 < 0.08
2013 2013-07-09 0.08 0 < 0.08
2013 2013-07-09 0.08 0 < 0.08
2013 2013-06-10 0.08 0 < 0.08
2013 2013-03-04 0.08 0 < 0.08
2013 2013-01-10 0.08 0 < 0.08
2013 2013-01-09 0.08 0 < 0.08
2013 2013-01-09 0.08 0 < 0.08
2013 2013-01-08 0.08 0 < 0.08
2013 2013-01-08 0.08 0 < 0.08
2013 2013-01-07 0.08 0 < 0.08
[+] Expand Test Data
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-12-09 0.09 0 < 0.09
2013 2013-09-03 0.09 0 < 0.09
2013 2013-07-10 0.09 0 < 0.09
2013 2013-07-10 0.09 0 < 0.09
2013 2013-07-09 0.09 0 < 0.09
2013 2013-07-09 0.09 0 < 0.09
2013 2013-07-09 0.09 0 < 0.09
2013 2013-06-10 0.09 0 < 0.09
2013 2013-03-04 0.09 0 < 0.09
2013 2013-01-10 0.09 0 < 0.09
2013 2013-01-09 0.09 0 < 0.09
2013 2013-01-09 0.09 0 < 0.09
2013 2013-01-08 0.09 0 < 0.09
2013 2013-01-08 0.09 0 < 0.09
2013 2013-01-07 0.09 0 < 0.09
[+] Expand Test Data
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-12-09 0.01 0 < 0.01
2013 2013-09-03 0.01 0 < 0.01
2013 2013-07-10 0.01 0 < 0.01
2013 2013-07-10 0.01 0 < 0.01
2013 2013-07-09 0.01 0 < 0.01
2013 2013-07-09 0.01 0 < 0.01
2013 2013-07-09 0.01 0 < 0.01
2013 2013-06-10 0.01 0 < 0.01
2013 2013-03-04 0.01 0 < 0.01
2013 2013-01-10 0.01 0 < 0.01
2013 2013-01-09 0.01 0 < 0.01
2013 2013-01-09 0.01 0 < 0.01
2013 2013-01-08 0.01 0 < 0.01
2013 2013-01-08 0.01 0 < 0.01
2013 2013-01-07 0.01 0 < 0.01
[+] Expand Test Data
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-12-09 0.03 0 < 0.03
2013 2013-09-03 0.03 0 < 0.03
2013 2013-07-10 0.03 0 < 0.03
2013 2013-07-10 0.03 0 < 0.03
2013 2013-07-09 0.03 0 < 0.03
2013 2013-07-09 0.03 0 < 0.03
2013 2013-07-09 0.03 0 < 0.03
2013 2013-06-10 0.03 0 < 0.03
2013 2013-03-04 0.03 0 < 0.03
2013 2013-01-10 0.03 0 < 0.03
2013 2013-01-09 0.03 0 < 0.03
2013 2013-01-09 0.03 0 < 0.03
2013 2013-01-08 0.03 0 < 0.03
2013 2013-01-08 0.03 0 < 0.03
2013 2013-01-07 0.03 0 < 0.03
[+] Expand Test Data
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-12-09 0.02 0 < 0.02
2013 2013-09-03 0.02 0 < 0.02
2013 2013-07-10 0.02 0 < 0.02
2013 2013-07-10 0.02 0 < 0.02
2013 2013-07-09 0.02 0 < 0.02
2013 2013-07-09 0.02 0 < 0.02
2013 2013-07-09 0.02 0 < 0.02
2013 2013-06-10 0.02 0 < 0.02
2013 2013-03-04 0.02 0 < 0.02
2013 2013-01-10 0.02 0 < 0.02
2013 2013-01-09 0.02 0 < 0.02
2013 2013-01-09 0.02 0 < 0.02
2013 2013-01-08 0.02 0 < 0.02
2013 2013-01-08 0.02 0 < 0.02
2013 2013-01-07 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
2013 2013-12-09 0.02 0.07 < 0.02
2013 2013-09-03 0.02 0.07 < 0.02
2013 2013-07-10 0.02 0.07 < 0.02
2013 2013-07-10 0.02 0.07 < 0.02
2013 2013-07-09 0.02 0.07 < 0.02
2013 2013-07-09 0.02 0.07 < 0.02
2013 2013-07-09 0.02 0.07 < 0.02
2013 2013-06-10 0.02 0.07 < 0.02
2013 2013-03-04 0.02 0.07 < 0.02
2013 2013-01-10 0.02 0.07 < 0.02
2013 2013-01-09 0.02 0.07 < 0.02
2013 2013-01-09 0.02 0.07 < 0.02
2013 2013-01-08 0.02 0.07 < 0.02
2013 2013-01-08 0.02 0.07 < 0.02
2013 2013-01-07 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
2013 2013-12-09 0.04 0.07 < 0.04
2013 2013-09-03 0.04 0.07 < 0.04
2013 2013-07-10 0.04 0.07 < 0.04
2013 2013-07-10 0.04 0.07 < 0.04
2013 2013-07-09 0.04 0.07 < 0.04
2013 2013-07-09 0.04 0.07 < 0.04
2013 2013-07-09 0.04 0.07 < 0.04
2013 2013-06-10 0.04 0.07 < 0.04
2013 2013-03-04 0.04 0.07 < 0.04
2013 2013-01-10 0.04 0.07 < 0.04
2013 2013-01-09 0.04 0.07 < 0.04
2013 2013-01-09 0.04 0.07 < 0.04
2013 2013-01-08 0.04 0.07 < 0.04
2013 2013-01-08 0.04 0.07 < 0.04
2013 2013-01-07 0.04 0.07 < 0.04
[+] 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
CA62654 lead 2016-01-01 2018-12-31 0mg/L
CA49017 lead 2013-01-01 2015-12-31 0mg/L
CA39510 lead 2010-01-01 2012-12-31 0mg/L
301006909238LT4 lead 2009-01-01 2009-12-31 0.0054mg/L
CA17479 lead 2007-01-01 2009-12-31 0.0054mg/L

Violations

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

Compliance Dates Rule Violation Type Contaminant Name Status
2017-01-01 - 2017-03-31 Stage 2 Disinfectants and Disinfection Byproducts Rule Monitoring, Routine (IDSE) Total Haloacetic Acids (HAA5) Returned to Compliance
2017-01-01 - 2017-03-31 Stage 2 Disinfectants and Disinfection Byproducts Rule Monitoring, Routine (IDSE) TTHM Returned to Compliance
2014-09-01 - 2014-09-30 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
2014-02-01 - 2014-02-28 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) 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
ALS Global USArp. Irvine, CA 92612
Sunstar Laboratories, Inc. Lake Forest, CA 92630
Sierra Analytical Laboratories, Inc. Laguna Hills, CA 92653

Water Bill Information

Convenient information about your water service.

Unable to identify any billing information about City Of Fountain Valley (CA3010069).

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.