City Of Antioch 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: CA0710001
Type: Community water system
EPA Region: 09
Primary Service Area: Residential Area
Primary Source: Surface water
Population Served: 103,833
Contact Information
ANDERSON, DUANE
ANDERSON, DUANE
PO BOX 5007
ANTIOCH, CA 94531-5007
DANDERSON@CI.ANTIOCH.CA.US

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):

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).

germanium

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

manganese

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.4 0.00 7.78
2018 2018-03-05 0.4 0.00 1.85

anatoxin-a

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.03 0.00 < 0.03
2018 2018-05-07 0.03 0.00 < 0.03
2018 2018-04-16 0.03 0.00 < 0.03
2018 2018-03-19 0.03 0.00 < 0.03

butylated hydroxyanisole

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.03 0.00 < 0.03
2018 2018-03-19 0.03 0.00 < 0.03

cylindrospermopsin

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.09 0.00 < 0.09
2018 2018-05-07 0.09 0.00 < 0.09
2018 2018-04-16 0.09 0.00 < 0.09
2018 2018-03-19 0.09 0.00 < 0.09

o-toluidine

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.007 0.00 < 0.007
2018 2018-03-19 0.007 0.00 < 0.007

quinoline

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.02 0.00 < 0.02
2018 2018-03-19 0.02 0.00 < 0.02

total microcystin

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.3 0.00 < 0.3
2018 2018-05-07 0.3 0.00 < 0.3
2018 2018-04-16 0.3 0.00 < 0.3
2018 2018-03-19 0.3 0.00 < 0.3

2-methoxyethanol

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.4 0.00 < 0.4

2-propen-1-ol

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.5 0.00 < 0.5

alpha-hexachlorocyclohexane

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.01 0.00 < 0.01

chlorpyrifos

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

dimethipin

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.2 0.00 < 0.2

ethoprop

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

oxyfluorfen

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.05 0.00 < 0.05

profenofos

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

tebuconazole

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.2 0.00 < 0.2

total permethrin

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.04 0.00 < 0.04

tribufos

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0.07 0.00 < 0.07

HAA5

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0 0.00 1.69
2018 2018-06-05 0 0.00 1.96
2018 2018-06-05 0 0.00 3.161
2018 2018-06-05 0 0.00 2.508
2018 2018-06-05 0 0.00 1.78
2018 2018-06-05 0 0.00 1.78
2018 2018-06-05 0 0.00 2.58
2018 2018-03-05 0 0.00 8.38

HAA6Br

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0 0.00 0.711
2018 2018-06-05 0 0.00 0.786
2018 2018-06-05 0 0.00 1.711
2018 2018-06-05 0 0.00 1.204
2018 2018-06-05 0 0.00 0.719
2018 2018-06-05 0 0.00 0.907
2018 2018-06-05 0 0.00 1.351
2018 2018-03-05 0 0.00 10.94

HAA9

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-06-05 0 0.00 2.401
2018 2018-06-05 0 0.00 2.746
2018 2018-06-05 0 0.00 4.361
2018 2018-06-05 0 0.00 3.384
2018 2018-06-05 0 0.00 2.499
2018 2018-06-05 0 0.00 2.687
2018 2018-06-05 0 0.00 3.541
2018 2018-03-05 0 0.00 16.85

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 2014-01-09 0.03 6.14 < 0.03
2013 2013-10-02 0.03 6.14 < 0.03
2013 2013-07-10 0.03 6.14 < 0.03
2013 2013-04-02 0.03 6.14 < 0.03
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.03 0.0004 < 0.03
2013 2013-10-02 0.03 0.0004 < 0.03
2013 2013-07-10 0.03 0.0004 < 0.03
2013 2013-04-02 0.03 0.0004 < 0.03
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.1 0.0103 < 0.1
2013 2013-10-02 0.1 0.0103 < 0.1
2013 2013-07-10 0.1 0.0103 < 0.1
2013 2013-04-02 0.1 0.0103 < 0.1
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.07 0.35 < 0.07
2013 2013-10-02 0.07 0.35 < 0.07
2013 2013-07-10 0.07 0.35 < 0.07
2013 2013-04-02 0.07 0.35 < 0.07
17-alpha-ethynylestradiol 0.0009 0.035 < 0.0009 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.0009 0.035 < 0.0009
2013 2013-10-02 0.0009 0.035 < 0.0009
2013 2013-07-10 0.0009 0.035 < 0.0009
2013 2013-04-02 0.0009 0.035 < 0.0009
17-beta-estradiol 0.0004 0.0009 < 0.0004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.0004 0.0009 < 0.0004
2013 2013-10-02 0.0004 0.0009 < 0.0004
2013 2013-07-10 0.0004 0.0009 < 0.0004
2013 2013-04-02 0.0004 0.0009 < 0.0004
4-androstene-3,17-dione 0.0003 0 < 0.0003 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.0003 0 < 0.0003
2013 2013-10-02 0.0003 0 < 0.0003
2013 2013-07-10 0.0003 0 < 0.0003
2013 2013-04-02 0.0003 0 < 0.0003
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.2 140 < 0.2
2013 2013-10-02 0.2 140 < 0.2
2013 2013-07-10 0.2 140 < 0.2
2013 2013-04-02 0.2 140 < 0.2
chlorate 20 210 13.625 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 20 210 44
2014 2014-01-09 20 210 39
2013 2013-10-02 20 210 26
2013 2013-10-02 20 210 < 20
2013 2013-07-10 20 210 < 20
2013 2013-07-10 20 210 < 20
2013 2013-04-02 20 210 < 20
2013 2013-04-02 20 210 < 20
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.2 2.69 < 0.2
2013 2013-10-02 0.2 2.69 < 0.2
2013 2013-07-10 0.2 2.69 < 0.2
2013 2013-04-02 0.2 2.69 < 0.2
chromium 0.2 100 0.1025 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.2 100 < 0.2
2014 2014-01-09 0.2 100 < 0.2
2013 2013-10-02 0.2 100 < 0.2
2013 2013-10-02 0.2 100 < 0.2
2013 2013-07-10 0.2 100 < 0.2
2013 2013-07-10 0.2 100 < 0.2
2013 2013-04-02 0.2 100 0.3
2013 2013-04-02 0.2 100 0.52
chromium-6 0.03 0 0.0846 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.03 0 0.062
2014 2014-01-09 0.03 0 0.056
2013 2013-10-02 0.03 0 0.1
2013 2013-10-02 0.03 0 0.088
2013 2013-07-10 0.03 0 0.088
2013 2013-07-10 0.03 0 0.094
2013 2013-04-02 0.03 0 0.099
2013 2013-04-02 0.03 0 0.09
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 1 70 < 1
2014 2014-01-09 1 70 < 1
2013 2013-10-02 1 70 < 1
2013 2013-10-02 1 70 < 1
2013 2013-07-10 1 70 < 1
2013 2013-07-10 1 70 < 1
2013 2013-04-02 1 70 < 1
2013 2013-04-02 1 70 < 1
equilin 0.004 0.35 < 0.004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.004 0.35 < 0.004
2013 2013-10-02 0.004 0.35 < 0.004
2013 2013-07-10 0.004 0.35 < 0.004
2013 2013-04-02 0.004 0.35 < 0.004
estriol 0.0008 0.35 < 0.0008 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.0008 0.35 < 0.0008
2013 2013-10-02 0.0008 0.35 < 0.0008
2013 2013-07-10 0.0008 0.35 < 0.0008
2013 2013-04-02 0.0008 0.35 < 0.0008
estrone 0.002 0.35 < 0.002 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.002 0.35 < 0.002
2013 2013-10-02 0.002 0.35 < 0.002
2013 2013-07-10 0.002 0.35 < 0.002
2013 2013-04-02 0.002 0.35 < 0.002
Halon 1011 0.06 90 0.0883 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.06 90 < 0.06
2013 2013-10-02 0.06 90 0.083
2013 2013-07-10 0.06 90 0.12
2013 2013-04-02 0.06 90 0.15
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.08 0 < 0.08
2013 2013-10-02 0.08 0 < 0.08
2013 2013-07-10 0.08 0 < 0.08
2013 2013-04-02 0.08 0 < 0.08
molybdenum 1 40 0.95 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 1 40 1.2
2014 2014-01-09 1 40 1.2
2013 2013-10-02 1 40 1.1
2013 2013-10-02 1 40 1
2013 2013-07-10 1 40 < 1
2013 2013-07-10 1 40 1
2013 2013-04-02 1 40 1
2013 2013-04-02 1 40 1.1
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.09 0 < 0.09
2013 2013-10-02 0.09 0 < 0.09
2013 2013-07-10 0.09 0 < 0.09
2013 2013-04-02 0.09 0 < 0.09
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.01 0 < 0.01
2013 2013-10-02 0.01 0 < 0.01
2013 2013-07-10 0.01 0 < 0.01
2013 2013-04-02 0.01 0 < 0.01
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.03 0 < 0.03
2013 2013-10-02 0.03 0 < 0.03
2013 2013-07-10 0.03 0 < 0.03
2013 2013-04-02 0.03 0 < 0.03
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.02 0 < 0.02
2013 2013-10-02 0.02 0 < 0.02
2013 2013-07-10 0.02 0 < 0.02
2013 2013-04-02 0.02 0 < 0.02
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.02 0.07 < 0.02
2013 2013-10-02 0.02 0.07 < 0.02
2013 2013-07-10 0.02 0.07 < 0.02
2013 2013-04-02 0.02 0.07 < 0.02
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.04 0.07 < 0.04
2013 2013-10-02 0.04 0.07 < 0.04
2013 2013-07-10 0.04 0.07 < 0.04
2013 2013-04-02 0.04 0.07 < 0.04
strontium 0.3 1500 153.75 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.3 1500 160
2014 2014-01-09 0.3 1500 180
2013 2013-10-02 0.3 1500 150
2013 2013-10-02 0.3 1500 140
2013 2013-07-10 0.3 1500 110
2013 2013-07-10 0.3 1500 110
2013 2013-04-02 0.3 1500 190
2013 2013-04-02 0.3 1500 190
testosterone 0.0001 0 < 0.0001 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.0001 0 < 0.0001
2013 2013-10-02 0.0001 0 < 0.0001
2013 2013-07-10 0.0001 0 < 0.0001
2013 2013-04-02 0.0001 0 < 0.0001
vanadium 0.2 21 2.55 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-01-09 0.2 21 1.4
2014 2014-01-09 0.2 21 1.4
2013 2013-10-02 0.2 21 2.8
2013 2013-10-02 0.2 21 2.4
2013 2013-07-10 0.2 21 3.3
2013 2013-07-10 0.2 21 3.4
2013 2013-04-02 0.2 21 3
2013 2013-04-02 0.2 21 2.7

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
CA63745 lead 2016-01-01 2018-12-31 0mg/L
CA48929 lead 2013-01-01 2015-12-31 0mg/L
CA37386 lead 2010-01-01 2012-12-31 0mg/L

Violations


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

Compliance Dates Rule Violation Type Contaminant Name Status
- N/A Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (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
AEMTEK, Inc Fremont, CA 94539
Napa -Solano-Yolo-Marin County Public Health Laboratory Fairfield, CA 94533
Caltest Analytical Laboratory Napa, CA 94558

Water Service Information


Convenient information about your water service.

Unable to identify any billing information about City Of Antioch (CA0710001).

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.