Norco, City Of 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: CA3310025
Type: Community water system
EPA Region: 09
Primary Source: Surface water purchased
Population Served: 25,891 		Contact Information
BLAIS, CHAD
BLAIS, CHAD
2870 Clark Ave.
NORCO, CA 92860
[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   (0) 2015   (2) 2016   (0) 2017   (0) 2018   (0)
chlorate
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).

chlorate

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2015 2015-05-05 20 210 240
2015 2015-05-05 20 210 300
2015 2015-02-10 20 210 100
2015 2015-02-10 20 210 110
2015 2015-02-03 20 210 < 20
2015 2015-02-03 20 210 83
2015 2015-02-03 20 210 < 20
2015 2015-02-03 20 210 < 20
2015 2015-02-03 20 210 < 20
2015 2015-02-03 20 210 30
2015 2015-02-03 20 210 < 20
2015 2015-02-03 20 210 < 20
2015 2015-02-03 20 210 < 20
2015 2015-02-03 20 210 63
2014 2014-11-10 20 210 100
2014 2014-11-10 20 210 140
2014 2014-08-26 20 210 190
2014 2014-08-26 20 210 < 20
2014 2014-08-20 20 210 150
2014 2014-08-20 20 210 59
2014 2014-08-20 20 210 190
2014 2014-08-12 20 210 180
2014 2014-08-12 20 210 51
2014 2014-08-12 20 210 < 20
2014 2014-08-12 20 210 < 20
2014 2014-08-12 20 210 < 20
2014 2014-08-12 20 210 < 20
2014 2014-08-12 20 210 < 20

1,4-dioxane

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2015 2015-05-05 0.07 0.35 < 0.07
2015 2015-02-10 0.07 0.35 < 0.07
2015 2015-02-03 0.07 0.35 0.17
2015 2015-02-03 0.07 0.35 0.35
2015 2015-02-03 0.07 0.35 0.13
2015 2015-02-03 0.07 0.35 0.14
2015 2015-02-03 0.07 0.35 0.11
2014 2014-11-10 0.07 0.35 0.08
2014 2014-08-20 0.07 0.35 < 0.07
2014 2014-08-20 0.07 0.35 0.17
2014 2014-08-20 0.07 0.35 < 0.07
2014 2014-08-12 0.07 0.35 0.14
2014 2014-08-12 0.07 0.35 0.13
2014 2014-08-12 0.07 0.35 0.12

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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
chromium 0.2 100 0.3214 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-05 0.2 100 0.42
2015 2015-05-05 0.2 100 < 0.2
2015 2015-02-10 0.2 100 0.61
2015 2015-02-10 0.2 100 0.61
2015 2015-02-03 0.2 100 0.48
2015 2015-02-03 0.2 100 0.3
2015 2015-02-03 0.2 100 0.28
2015 2015-02-03 0.2 100 0.44
2015 2015-02-03 0.2 100 < 0.2
2015 2015-02-03 0.2 100 1
2015 2015-02-03 0.2 100 < 0.2
2015 2015-02-03 0.2 100 < 0.2
2015 2015-02-03 0.2 100 < 0.2
2015 2015-02-03 0.2 100 0.28
2014 2014-11-10 0.2 100 0.6
2014 2014-11-10 0.2 100 < 0.2
2014 2014-08-26 0.2 100 0.32
2014 2014-08-26 0.2 100 0.35
2014 2014-08-20 0.2 100 0.66
2014 2014-08-20 0.2 100 0.9
2014 2014-08-20 0.2 100 < 0.2
2014 2014-08-12 0.2 100 0.55
2014 2014-08-12 0.2 100 0.8
2014 2014-08-12 0.2 100 0.4
2014 2014-08-12 0.2 100 < 0.2
2014 2014-08-12 0.2 100 < 0.2
2014 2014-08-12 0.2 100 < 0.2
2014 2014-08-12 0.2 100 < 0.2
[+] Expand Test Data
chromium-6 0.03 0 0.372 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-05 0.03 0 0.4
2015 2015-05-05 0.03 0 0.14
2015 2015-02-10 0.03 0 0.66
2015 2015-02-10 0.03 0 0.67
2015 2015-02-03 0.03 0 0.48
2015 2015-02-03 0.03 0 0.32
2015 2015-02-03 0.03 0 0.27
2015 2015-02-03 0.03 0 0.42
2015 2015-02-03 0.03 0 0.032
2015 2015-02-03 0.03 0 1.1
2015 2015-02-03 0.03 0 < 0.03
2015 2015-02-03 0.03 0 < 0.03
2015 2015-02-03 0.03 0 0.047
2015 2015-02-03 0.03 0 0.26
2014 2014-11-10 0.03 0 0.47
2014 2014-11-10 0.03 0 0.21
2014 2014-08-26 0.03 0 0.35
2014 2014-08-26 0.03 0 0.37
2014 2014-08-20 0.03 0 0.71
2014 2014-08-20 0.03 0 1
2014 2014-08-20 0.03 0 0.18
2014 2014-08-12 0.03 0 0.65
2014 2014-08-12 0.03 0 1.1
2014 2014-08-12 0.03 0 0.46
2014 2014-08-12 0.03 0 0.038
2014 2014-08-12 0.03 0 0.046
2014 2014-08-12 0.03 0 0.033
2014 2014-08-12 0.03 0 < 0.03
[+] Expand Test Data
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-05 1 70 < 1
2015 2015-05-05 1 70 < 1
2015 2015-02-10 1 70 < 1
2015 2015-02-10 1 70 < 1
2015 2015-02-03 1 70 < 1
2015 2015-02-03 1 70 < 1
2015 2015-02-03 1 70 < 1
2015 2015-02-03 1 70 < 1
2015 2015-02-03 1 70 < 1
2015 2015-02-03 1 70 < 1
2015 2015-02-03 1 70 < 1
2015 2015-02-03 1 70 < 1
2015 2015-02-03 1 70 < 1
2015 2015-02-03 1 70 < 1
2014 2014-11-10 1 70 < 1
2014 2014-11-10 1 70 < 1
2014 2014-08-26 1 70 < 1
2014 2014-08-26 1 70 < 1
2014 2014-08-20 1 70 < 1
2014 2014-08-20 1 70 < 1
2014 2014-08-20 1 70 < 1
2014 2014-08-12 1 70 < 1
2014 2014-08-12 1 70 < 1
2014 2014-08-12 1 70 < 1
2014 2014-08-12 1 70 < 1
2014 2014-08-12 1 70 < 1
2014 2014-08-12 1 70 < 1
2014 2014-08-12 1 70 < 1
[+] Expand Test Data
molybdenum 1 40 10.6857 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-05 1 40 2.5
2015 2015-05-05 1 40 4.9
2015 2015-02-10 1 40 1.4
2015 2015-02-10 1 40 < 1
2015 2015-02-03 1 40 28
2015 2015-02-03 1 40 3.8
2015 2015-02-03 1 40 25
2015 2015-02-03 1 40 28
2015 2015-02-03 1 40 8.2
2015 2015-02-03 1 40 < 1
2015 2015-02-03 1 40 22
2015 2015-02-03 1 40 26
2015 2015-02-03 1 40 8.8
2015 2015-02-03 1 40 3.2
2014 2014-11-10 1 40 2.3
2014 2014-11-10 1 40 4.9
2014 2014-08-26 1 40 3.2
2014 2014-08-26 1 40 26
2014 2014-08-20 1 40 1.2
2014 2014-08-20 1 40 < 1
2014 2014-08-20 1 40 4.3
2014 2014-08-12 1 40 1.1
2014 2014-08-12 1 40 < 1
2014 2014-08-12 1 40 26
2014 2014-08-12 1 40 8.1
2014 2014-08-12 1 40 25
2014 2014-08-12 1 40 27
2014 2014-08-12 1 40 8.3
[+] Expand Test Data
strontium 0.3 1500 335.2143 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-05 0.3 1500 330
2015 2015-05-05 0.3 1500 590
2015 2015-02-10 0.3 1500 210
2015 2015-02-10 0.3 1500 200
2015 2015-02-03 0.3 1500 88
2015 2015-02-03 0.3 1500 260
2015 2015-02-03 0.3 1500 180
2015 2015-02-03 0.3 1500 80
2015 2015-02-03 0.3 1500 690
2015 2015-02-03 0.3 1500 390
2015 2015-02-03 0.3 1500 390
2015 2015-02-03 0.3 1500 73
2015 2015-02-03 0.3 1500 740
2015 2015-02-03 0.3 1500 250
2014 2014-11-10 0.3 1500 260
2014 2014-11-10 0.3 1500 530
2014 2014-08-26 0.3 1500 450
2014 2014-08-26 0.3 1500 120
2014 2014-08-20 0.3 1500 200
2014 2014-08-20 0.3 1500 440
2014 2014-08-20 0.3 1500 600
2014 2014-08-12 0.3 1500 200
2014 2014-08-12 0.3 1500 410
2014 2014-08-12 0.3 1500 83
2014 2014-08-12 0.3 1500 660
2014 2014-08-12 0.3 1500 200
2014 2014-08-12 0.3 1500 82
2014 2014-08-12 0.3 1500 680
[+] Expand Test Data
vanadium 0.2 21 2.5993 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-05 0.2 21 4.1
2015 2015-05-05 0.2 21 2.5
2015 2015-02-10 0.2 21 5
2015 2015-02-10 0.2 21 5.4
2015 2015-02-03 0.2 21 0.45
2015 2015-02-03 0.2 21 2.8
2015 2015-02-03 0.2 21 1.5
2015 2015-02-03 0.2 21 < 0.2
2015 2015-02-03 0.2 21 1.8
2015 2015-02-03 0.2 21 2.3
2015 2015-02-03 0.2 21 4.9
2015 2015-02-03 0.2 21 0.82
2015 2015-02-03 0.2 21 2
2015 2015-02-03 0.2 21 2.1
2014 2014-11-10 0.2 21 4.4
2014 2014-11-10 0.2 21 2.9
2014 2014-08-26 0.2 21 3.8
2014 2014-08-26 0.2 21 1.1
2014 2014-08-20 0.2 21 5.6
2014 2014-08-20 0.2 21 2.1
2014 2014-08-20 0.2 21 2.6
2014 2014-08-12 0.2 21 5.1
2014 2014-08-12 0.2 21 2
2014 2014-08-12 0.2 21 < 0.2
2014 2014-08-12 0.2 21 1.7
2014 2014-08-12 0.2 21 3.4
2014 2014-08-12 0.2 21 0.71
2014 2014-08-12 0.2 21 1.7
[+] Expand Test Data
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-05 0.03 6.14 < 0.03
2015 2015-02-10 0.03 6.14 < 0.03
2015 2015-02-03 0.03 6.14 < 0.03
2015 2015-02-03 0.03 6.14 < 0.03
2015 2015-02-03 0.03 6.14 < 0.03
2015 2015-02-03 0.03 6.14 < 0.03
2015 2015-02-03 0.03 6.14 < 0.03
2014 2014-11-10 0.03 6.14 < 0.03
2014 2014-08-20 0.03 6.14 < 0.03
2014 2014-08-20 0.03 6.14 < 0.03
2014 2014-08-20 0.03 6.14 < 0.03
2014 2014-08-13 0.03 6.14 < 0.03
2014 2014-08-13 0.03 6.14 < 0.03
2014 2014-08-12 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
2015 2015-05-05 0.03 0.0004 < 0.03
2015 2015-02-10 0.03 0.0004 < 0.03
2015 2015-02-03 0.03 0.0004 < 0.03
2015 2015-02-03 0.03 0.0004 < 0.03
2015 2015-02-03 0.03 0.0004 < 0.03
2015 2015-02-03 0.03 0.0004 < 0.03
2015 2015-02-03 0.03 0.0004 < 0.03
2014 2014-11-10 0.03 0.0004 < 0.03
2014 2014-08-20 0.03 0.0004 < 0.03
2014 2014-08-20 0.03 0.0004 < 0.03
2014 2014-08-20 0.03 0.0004 < 0.03
2014 2014-08-13 0.03 0.0004 < 0.03
2014 2014-08-13 0.03 0.0004 < 0.03
2014 2014-08-12 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
2015 2015-05-05 0.1 0.0103 < 0.1
2015 2015-02-10 0.1 0.0103 < 0.1
2015 2015-02-03 0.1 0.0103 < 0.1
2015 2015-02-03 0.1 0.0103 < 0.1
2015 2015-02-03 0.1 0.0103 < 0.1
2015 2015-02-03 0.1 0.0103 < 0.1
2015 2015-02-03 0.1 0.0103 < 0.1
2014 2014-11-10 0.1 0.0103 < 0.1
2014 2014-08-20 0.1 0.0103 < 0.1
2014 2014-08-20 0.1 0.0103 < 0.1
2014 2014-08-20 0.1 0.0103 < 0.1
2014 2014-08-13 0.1 0.0103 < 0.1
2014 2014-08-13 0.1 0.0103 < 0.1
2014 2014-08-12 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
2015 2015-05-05 0.2 140 < 0.2
2015 2015-02-10 0.2 140 < 0.2
2015 2015-02-03 0.2 140 < 0.2
2015 2015-02-03 0.2 140 < 0.2
2015 2015-02-03 0.2 140 < 0.2
2015 2015-02-03 0.2 140 < 0.2
2015 2015-02-03 0.2 140 < 0.2
2014 2014-11-10 0.2 140 < 0.2
2014 2014-08-20 0.2 140 < 0.2
2014 2014-08-20 0.2 140 < 0.2
2014 2014-08-20 0.2 140 < 0.2
2014 2014-08-13 0.2 140 < 0.2
2014 2014-08-13 0.2 140 < 0.2
2014 2014-08-12 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
2015 2015-05-05 0.2 2.69 < 0.2
2015 2015-02-10 0.2 2.69 < 0.2
2015 2015-02-03 0.2 2.69 < 0.2
2015 2015-02-03 0.2 2.69 < 0.2
2015 2015-02-03 0.2 2.69 < 0.2
2015 2015-02-03 0.2 2.69 < 0.2
2015 2015-02-03 0.2 2.69 < 0.2
2014 2014-11-10 0.2 2.69 < 0.2
2014 2014-08-20 0.2 2.69 < 0.2
2014 2014-08-20 0.2 2.69 < 0.2
2014 2014-08-20 0.2 2.69 < 0.2
2014 2014-08-13 0.2 2.69 < 0.2
2014 2014-08-13 0.2 2.69 < 0.2
2014 2014-08-12 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
2015 2015-05-05 0.06 90 < 0.06
2015 2015-02-10 0.06 90 < 0.06
2015 2015-02-03 0.06 90 < 0.06
2015 2015-02-03 0.06 90 < 0.06
2015 2015-02-03 0.06 90 < 0.06
2015 2015-02-03 0.06 90 < 0.06
2015 2015-02-03 0.06 90 < 0.06
2014 2014-11-10 0.06 90 < 0.06
2014 2014-08-20 0.06 90 < 0.06
2014 2014-08-20 0.06 90 < 0.06
2014 2014-08-20 0.06 90 < 0.06
2014 2014-08-13 0.06 90 < 0.06
2014 2014-08-13 0.06 90 < 0.06
2014 2014-08-12 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
2015 2015-05-05 0.08 0 < 0.08
2015 2015-02-10 0.08 0 < 0.08
2015 2015-02-03 0.08 0 < 0.08
2015 2015-02-03 0.08 0 < 0.08
2015 2015-02-03 0.08 0 < 0.08
2015 2015-02-03 0.08 0 < 0.08
2015 2015-02-03 0.08 0 < 0.08
2014 2014-11-10 0.08 0 < 0.08
2014 2014-08-20 0.08 0 < 0.08
2014 2014-08-20 0.08 0 < 0.08
2014 2014-08-20 0.08 0 < 0.08
2014 2014-08-13 0.08 0 < 0.08
2014 2014-08-13 0.08 0 < 0.08
2014 2014-08-12 0.08 0 < 0.08
[+] Expand Test Data
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-05 0.09 0 < 0.09
2015 2015-02-10 0.09 0 < 0.09
2015 2015-02-03 0.09 0 < 0.09
2015 2015-02-03 0.09 0 < 0.09
2015 2015-02-03 0.09 0 < 0.09
2015 2015-02-03 0.09 0 < 0.09
2015 2015-02-03 0.09 0 < 0.09
2014 2014-11-10 0.09 0 < 0.09
2014 2014-08-20 0.09 0 < 0.09
2014 2014-08-20 0.09 0 < 0.09
2014 2014-08-20 0.09 0 < 0.09
2014 2014-08-12 0.09 0 < 0.09
2014 2014-08-12 0.09 0 < 0.09
2014 2014-08-12 0.09 0 < 0.09
[+] Expand Test Data
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-05 0.01 0 < 0.01
2015 2015-02-10 0.01 0 < 0.01
2015 2015-02-03 0.01 0 < 0.01
2015 2015-02-03 0.01 0 < 0.01
2015 2015-02-03 0.01 0 < 0.01
2015 2015-02-03 0.01 0 < 0.01
2015 2015-02-03 0.01 0 < 0.01
2014 2014-11-10 0.01 0 < 0.01
2014 2014-08-20 0.01 0 < 0.01
2014 2014-08-20 0.01 0 < 0.01
2014 2014-08-20 0.01 0 < 0.01
2014 2014-08-12 0.01 0 < 0.01
2014 2014-08-12 0.01 0 < 0.01
2014 2014-08-12 0.01 0 < 0.01
[+] Expand Test Data
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-05 0.03 0 < 0.03
2015 2015-02-10 0.03 0 < 0.03
2015 2015-02-03 0.03 0 < 0.03
2015 2015-02-03 0.03 0 < 0.03
2015 2015-02-03 0.03 0 < 0.03
2015 2015-02-03 0.03 0 < 0.03
2015 2015-02-03 0.03 0 < 0.03
2014 2014-11-10 0.03 0 < 0.03
2014 2014-08-20 0.03 0 < 0.03
2014 2014-08-20 0.03 0 < 0.03
2014 2014-08-20 0.03 0 < 0.03
2014 2014-08-12 0.03 0 < 0.03
2014 2014-08-12 0.03 0 < 0.03
2014 2014-08-12 0.03 0 < 0.03
[+] Expand Test Data
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-05 0.02 0 < 0.02
2015 2015-02-10 0.02 0 < 0.02
2015 2015-02-03 0.02 0 < 0.02
2015 2015-02-03 0.02 0 < 0.02
2015 2015-02-03 0.02 0 < 0.02
2015 2015-02-03 0.02 0 < 0.02
2015 2015-02-03 0.02 0 < 0.02
2014 2014-11-10 0.02 0 < 0.02
2014 2014-08-20 0.02 0 < 0.02
2014 2014-08-20 0.02 0 < 0.02
2014 2014-08-20 0.02 0 < 0.02
2014 2014-08-12 0.02 0 < 0.02
2014 2014-08-12 0.02 0 < 0.02
2014 2014-08-12 0.02 0 < 0.02
[+] Expand Test Data
PFOA 0.02 0.07 0.0019 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-05 0.02 0.07 < 0.02
2015 2015-02-10 0.02 0.07 < 0.02
2015 2015-02-03 0.02 0.07 < 0.02
2015 2015-02-03 0.02 0.07 < 0.02
2015 2015-02-03 0.02 0.07 < 0.02
2015 2015-02-03 0.02 0.07 < 0.02
2015 2015-02-03 0.02 0.07 0.026
2014 2014-11-10 0.02 0.07 < 0.02
2014 2014-08-20 0.02 0.07 < 0.02
2014 2014-08-20 0.02 0.07 < 0.02
2014 2014-08-20 0.02 0.07 < 0.02
2014 2014-08-12 0.02 0.07 < 0.02
2014 2014-08-12 0.02 0.07 < 0.02
2014 2014-08-12 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
2015 2015-05-05 0.04 0.07 < 0.04
2015 2015-02-10 0.04 0.07 < 0.04
2015 2015-02-03 0.04 0.07 < 0.04
2015 2015-02-03 0.04 0.07 < 0.04
2015 2015-02-03 0.04 0.07 < 0.04
2015 2015-02-03 0.04 0.07 < 0.04
2015 2015-02-03 0.04 0.07 < 0.04
2014 2014-11-10 0.04 0.07 < 0.04
2014 2014-08-20 0.04 0.07 < 0.04
2014 2014-08-20 0.04 0.07 < 0.04
2014 2014-08-20 0.04 0.07 < 0.04
2014 2014-08-12 0.04 0.07 < 0.04
2014 2014-08-12 0.04 0.07 < 0.04
2014 2014-08-12 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
CA61492 lead 2016-01-01 2018-12-31 0mg/L
CA49257 lead 2013-01-01 2015-12-31 0mg/L
331002512251LT4 lead 2012-01-01 2012-12-31 0.0053mg/L
CA39141 lead 2010-01-01 2012-12-31 0.0053mg/L
331002509306LT3 lead 2009-01-01 2009-12-31 0.005mg/L
331002508283LT3 lead 2008-01-01 2008-12-31 0.005mg/L

Violations

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

Compliance Dates Rule Violation Type Contaminant Name Status
2013-04-01 - 2013-04-30 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
2012-10-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation Benzene Returned to Compliance
2012-07-01 - 2012-09-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation Benzene Returned to Compliance
2011-09-01 - 2011-09-30 Nitrates Maximum Contaminant Level Violation, Single Sample Nitrate Returned to Compliance
2007-01-01 - 2009-12-31 Radionuclides Monitoring, Regular Combined Uranium Returned to Compliance
2009-01-01 - 2009-12-31 Nitrates Monitoring, Regular Nitrate Returned to Compliance
2009-11-01 - 2009-11-30 Total Coliform Rule Monitoring, Repeat Minor (TCR) Coliform (TCR) Known
2007-07-01 - 2007-09-30 Arsenic Maximum Contaminant Level Violation, Average Arsenic Returned to Compliance
2007-04-01 - 2007-06-30 Arsenic Maximum Contaminant Level Violation, Average Arsenic Returned to Compliance
2007-04-01 - 2007-06-30 Arsenic Monitoring, Regular Arsenic Returned to Compliance
2003-08-01 - 2003-08-31 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
2002-06-01 - 2002-06-30 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
2013-04-10 - N/A Ground Water Rule Failure to Notify Other PWS Groundwater Rule Returned to Compliance
- N/A Nitrates Monitoring, Check/Repeat/Confirmation Nitrate Returned to Compliance
- N/A Miscellaneous Notification, Public - Known
- N/A Miscellaneous Notification, Public - Known
2001-07-01 - N/A Consumer Confidence Rule Consumer Confidence Report Complete Failure to Report Consumer Confidence Rule Returned to Compliance
- N/A Inorganic Chemicals Maximum Contaminant Level Violation, Single Sample Fluoride Known
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
- N/A Nitrates Maximum Contaminant Level Violation, Average Nitrate Returned to Compliance
- N/A Nitrates Maximum Contaminant Level Violation, Single Sample Nitrate Returned to Compliance
- N/A Nitrates Maximum Contaminant Level Violation, Single Sample Nitrate Returned to Compliance
- N/A Nitrates Maximum Contaminant Level Violation, Single Sample Nitrate Returned to Compliance
- N/A Nitrates Maximum Contaminant Level Violation, Single Sample Nitrate Returned to Compliance
- N/A Nitrates Maximum Contaminant Level Violation, Single Sample Nitrate Known
- N/A Nitrates Maximum Contaminant Level Violation, Single Sample Nitrate Known
- N/A Nitrates Maximum Contaminant Level Violation, Single Sample Nitrate 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
Enthalpy Analytical, LLC Orange, CA 92868
Reference Laboratories Corona, CA 92883

Water Bill Information

Convenient information about your water service.

Unable to identify any billing information about Norco, City Of (CA3310025).

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.