Public Water System: Downey - City, Water Dept.

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: CA1910034
Type: Community water system
EPA Region: 09
Primary Service Area: Residential Area
Primary Source: Ground water
Population Served: 112,866 		Contact Information
MUELLER, DAN
MUELLER, DAN
11111 Brookshire Ave.
DOWNEY, CA 90241

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   (1) 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 MRL HRL Test Result
2015 2015-08-13 0.07 0.35 1.1
2015 2015-08-13 0.07 0.35 1.9
2015 2015-08-13 0.07 0.35 2.2
2015 2015-08-13 0.07 0.35 0.55
2015 2015-02-24 0.07 0.35 2.7
2015 2015-02-24 0.07 0.35 1.3
2015 2015-02-24 0.07 0.35 1.7
2015 2015-02-24 0.07 0.35 2.8
2015 2015-02-24 0.07 0.35 0.54

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Other Water Contaminants Tested

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

Contaminant MRL HRL Avg Result
1,1-dichloroethane 0.03 6.14 0.0422 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.03 6.14 0.17
2015 2015-08-13 0.03 6.14 < 0.03
2015 2015-08-13 0.03 6.14 < 0.03
2015 2015-08-13 0.03 6.14 < 0.03
2015 2015-02-24 0.03 6.14 < 0.03
2015 2015-02-24 0.03 6.14 0.18
2015 2015-02-24 0.03 6.14 < 0.03
2015 2015-02-24 0.03 6.14 0.03
2015 2015-02-24 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 2015-08-13 0.03 0.0004 < 0.03
2015 2015-08-13 0.03 0.0004 < 0.03
2015 2015-08-13 0.03 0.0004 < 0.03
2015 2015-08-13 0.03 0.0004 < 0.03
2015 2015-02-24 0.03 0.0004 < 0.03
2015 2015-02-24 0.03 0.0004 < 0.03
2015 2015-02-24 0.03 0.0004 < 0.03
2015 2015-02-24 0.03 0.0004 < 0.03
2015 2015-02-24 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 2015-08-13 0.1 0.0103 < 0.1
2015 2015-08-13 0.1 0.0103 < 0.1
2015 2015-08-13 0.1 0.0103 < 0.1
2015 2015-08-13 0.1 0.0103 < 0.1
2015 2015-02-24 0.1 0.0103 < 0.1
2015 2015-02-24 0.1 0.0103 < 0.1
2015 2015-02-24 0.1 0.0103 < 0.1
2015 2015-02-24 0.1 0.0103 < 0.1
2015 2015-02-24 0.1 0.0103 < 0.1
[+] Expand Test Data
17-alpha-ethynylestradiol 0.0009 0.035 < 0.0009 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.0009 0.035 < 0.0009
2015 2015-08-13 0.0009 0.035 < 0.0009
2015 2015-08-13 0.0009 0.035 < 0.0009
2015 2015-08-13 0.0009 0.035 < 0.0009
2015 2015-02-24 0.0009 0.035 < 0.0009
2015 2015-02-24 0.0009 0.035 < 0.0009
2015 2015-02-24 0.0009 0.035 < 0.0009
2015 2015-02-24 0.0009 0.035 < 0.0009
2015 2015-02-24 0.0009 0.035 < 0.0009
[+] Expand Test Data
17-beta-estradiol 0.0004 0.0009 < 0.0004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.0004 0.0009 < 0.0004
2015 2015-08-13 0.0004 0.0009 < 0.0004
2015 2015-08-13 0.0004 0.0009 < 0.0004
2015 2015-08-13 0.0004 0.0009 < 0.0004
2015 2015-02-24 0.0004 0.0009 < 0.0004
2015 2015-02-24 0.0004 0.0009 < 0.0004
2015 2015-02-24 0.0004 0.0009 < 0.0004
2015 2015-02-24 0.0004 0.0009 < 0.0004
2015 2015-02-24 0.0004 0.0009 < 0.0004
[+] Expand Test Data
4-androstene-3,17-dione 0.0003 0 < 0.0003 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.0003 0 < 0.0003
2015 2015-08-13 0.0003 0 < 0.0003
2015 2015-08-13 0.0003 0 < 0.0003
2015 2015-08-13 0.0003 0 < 0.0003
2015 2015-02-24 0.0003 0 < 0.0003
2015 2015-02-24 0.0003 0 < 0.0003
2015 2015-02-24 0.0003 0 < 0.0003
2015 2015-02-24 0.0003 0 < 0.0003
2015 2015-02-24 0.0003 0 < 0.0003
[+] Expand Test Data
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.2 140 < 0.2
2015 2015-08-13 0.2 140 < 0.2
2015 2015-08-13 0.2 140 < 0.2
2015 2015-08-13 0.2 140 < 0.2
2015 2015-02-24 0.2 140 < 0.2
2015 2015-02-24 0.2 140 < 0.2
2015 2015-02-24 0.2 140 < 0.2
2015 2015-02-24 0.2 140 < 0.2
2015 2015-02-24 0.2 140 < 0.2
[+] Expand Test Data
chlorate 20 210 23.5455 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 20 210 32
2015 2015-08-13 20 210 29
2015 2015-08-13 20 210 < 20
2015 2015-08-13 20 210 54
2015 2015-08-13 20 210 26
2015 2015-02-24 20 210 < 20
2015 2015-02-24 20 210 23
2015 2015-02-24 20 210 26
2015 2015-02-24 20 210 < 20
2015 2015-02-24 20 210 49
2015 2015-02-24 20 210 20
[+] Expand Test Data
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.2 2.69 < 0.2
2015 2015-08-13 0.2 2.69 < 0.2
2015 2015-08-13 0.2 2.69 < 0.2
2015 2015-08-13 0.2 2.69 < 0.2
2015 2015-02-24 0.2 2.69 < 0.2
2015 2015-02-24 0.2 2.69 < 0.2
2015 2015-02-24 0.2 2.69 < 0.2
2015 2015-02-24 0.2 2.69 < 0.2
2015 2015-02-24 0.2 2.69 < 0.2
[+] Expand Test Data
chromium 0.2 100 0.6 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.2 100 0.45
2015 2015-08-13 0.2 100 0.64
2015 2015-08-13 0.2 100 0.58
2015 2015-08-13 0.2 100 0.65
2015 2015-08-13 0.2 100 0.41
2015 2015-02-24 0.2 100 1.2
2015 2015-02-24 0.2 100 0.43
2015 2015-02-24 0.2 100 0.61
2015 2015-02-24 0.2 100 0.62
2015 2015-02-24 0.2 100 0.67
2015 2015-02-24 0.2 100 0.34
[+] Expand Test Data
chromium-6 0.03 0 0.6782 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.03 0 0.48
2015 2015-08-13 0.03 0 0.73
2015 2015-08-13 0.03 0 0.71
2015 2015-08-13 0.03 0 0.79
2015 2015-08-13 0.03 0 0.41
2015 2015-02-24 0.03 0 1.4
2015 2015-02-24 0.03 0 0.48
2015 2015-02-24 0.03 0 0.68
2015 2015-02-24 0.03 0 0.66
2015 2015-02-24 0.03 0 0.73
2015 2015-02-24 0.03 0 0.39
[+] Expand Test Data
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 1 70 < 1
2015 2015-08-13 1 70 < 1
2015 2015-08-13 1 70 < 1
2015 2015-08-13 1 70 < 1
2015 2015-08-13 1 70 < 1
2015 2015-02-24 1 70 < 1
2015 2015-02-24 1 70 < 1
2015 2015-02-24 1 70 < 1
2015 2015-02-24 1 70 < 1
2015 2015-02-24 1 70 < 1
2015 2015-02-24 1 70 < 1
[+] Expand Test Data
equilin 0.004 0.35 < 0.004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.004 0.35 < 0.004
2015 2015-08-13 0.004 0.35 < 0.004
2015 2015-08-13 0.004 0.35 < 0.004
2015 2015-08-13 0.004 0.35 < 0.004
2015 2015-02-24 0.004 0.35 < 0.004
2015 2015-02-24 0.004 0.35 < 0.004
2015 2015-02-24 0.004 0.35 < 0.004
2015 2015-02-24 0.004 0.35 < 0.004
2015 2015-02-24 0.004 0.35 < 0.004
[+] Expand Test Data
estriol 0.0008 0.35 < 0.0008 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.0008 0.35 < 0.0008
2015 2015-08-13 0.0008 0.35 < 0.0008
2015 2015-08-13 0.0008 0.35 < 0.0008
2015 2015-08-13 0.0008 0.35 < 0.0008
2015 2015-02-24 0.0008 0.35 < 0.0008
2015 2015-02-24 0.0008 0.35 < 0.0008
2015 2015-02-24 0.0008 0.35 < 0.0008
2015 2015-02-24 0.0008 0.35 < 0.0008
2015 2015-02-24 0.0008 0.35 < 0.0008
[+] Expand Test Data
estrone 0.002 0.35 < 0.002 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.002 0.35 < 0.002
2015 2015-08-13 0.002 0.35 < 0.002
2015 2015-08-13 0.002 0.35 < 0.002
2015 2015-08-13 0.002 0.35 < 0.002
2015 2015-02-24 0.002 0.35 < 0.002
2015 2015-02-24 0.002 0.35 < 0.002
2015 2015-02-24 0.002 0.35 < 0.002
2015 2015-02-24 0.002 0.35 < 0.002
2015 2015-02-24 0.002 0.35 < 0.002
[+] Expand Test Data
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.06 90 < 0.06
2015 2015-08-13 0.06 90 < 0.06
2015 2015-08-13 0.06 90 < 0.06
2015 2015-08-13 0.06 90 < 0.06
2015 2015-02-24 0.06 90 < 0.06
2015 2015-02-24 0.06 90 < 0.06
2015 2015-02-24 0.06 90 < 0.06
2015 2015-02-24 0.06 90 < 0.06
2015 2015-02-24 0.06 90 < 0.06
[+] Expand Test Data
HCFC-22 0.08 0 0.0227 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.08 0 < 0.08
2015 2015-08-13 0.08 0 0.094
2015 2015-08-13 0.08 0 < 0.08
2015 2015-08-13 0.08 0 < 0.08
2015 2015-02-24 0.08 0 < 0.08
2015 2015-02-24 0.08 0 < 0.08
2015 2015-02-24 0.08 0 0.11
2015 2015-02-24 0.08 0 < 0.08
2015 2015-02-24 0.08 0 < 0.08
[+] Expand Test Data
molybdenum 1 40 2.0545 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 1 40 1.9
2015 2015-08-13 1 40 2.1
2015 2015-08-13 1 40 2.1
2015 2015-08-13 1 40 1.7
2015 2015-08-13 1 40 1.8
2015 2015-02-24 1 40 2.4
2015 2015-02-24 1 40 2.1
2015 2015-02-24 1 40 2.2
2015 2015-02-24 1 40 2.4
2015 2015-02-24 1 40 2
2015 2015-02-24 1 40 1.9
[+] Expand Test Data
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.09 0 < 0.09
2015 2015-08-13 0.09 0 < 0.09
2015 2015-08-13 0.09 0 < 0.09
2015 2015-08-13 0.09 0 < 0.09
2015 2015-02-24 0.09 0 < 0.09
2015 2015-02-24 0.09 0 < 0.09
2015 2015-02-24 0.09 0 < 0.09
2015 2015-02-24 0.09 0 < 0.09
2015 2015-02-24 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 2015-08-13 0.01 0 < 0.01
2015 2015-08-13 0.01 0 < 0.01
2015 2015-08-13 0.01 0 < 0.01
2015 2015-08-13 0.01 0 < 0.01
2015 2015-02-24 0.01 0 < 0.01
2015 2015-02-24 0.01 0 < 0.01
2015 2015-02-24 0.01 0 < 0.01
2015 2015-02-24 0.01 0 < 0.01
2015 2015-02-24 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 2015-08-13 0.03 0 < 0.03
2015 2015-08-13 0.03 0 < 0.03
2015 2015-08-13 0.03 0 < 0.03
2015 2015-08-13 0.03 0 < 0.03
2015 2015-02-24 0.03 0 < 0.03
2015 2015-02-24 0.03 0 < 0.03
2015 2015-02-24 0.03 0 < 0.03
2015 2015-02-24 0.03 0 < 0.03
2015 2015-02-24 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 2015-08-13 0.02 0 < 0.02
2015 2015-08-13 0.02 0 < 0.02
2015 2015-08-13 0.02 0 < 0.02
2015 2015-08-13 0.02 0 < 0.02
2015 2015-02-24 0.02 0 < 0.02
2015 2015-02-24 0.02 0 < 0.02
2015 2015-02-24 0.02 0 < 0.02
2015 2015-02-24 0.02 0 < 0.02
2015 2015-02-24 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
2015 2015-08-13 0.02 0.07 < 0.02
2015 2015-08-13 0.02 0.07 < 0.02
2015 2015-08-13 0.02 0.07 < 0.02
2015 2015-08-13 0.02 0.07 < 0.02
2015 2015-02-24 0.02 0.07 < 0.02
2015 2015-02-24 0.02 0.07 < 0.02
2015 2015-02-24 0.02 0.07 < 0.02
2015 2015-02-24 0.02 0.07 < 0.02
2015 2015-02-24 0.02 0.07 < 0.02
[+] Expand Test Data
PFOS 0.04 0.07 0.0109 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.04 0.07 < 0.04
2015 2015-08-13 0.04 0.07 < 0.04
2015 2015-08-13 0.04 0.07 0.045
2015 2015-08-13 0.04 0.07 < 0.04
2015 2015-02-24 0.04 0.07 < 0.04
2015 2015-02-24 0.04 0.07 < 0.04
2015 2015-02-24 0.04 0.07 < 0.04
2015 2015-02-24 0.04 0.07 0.053
2015 2015-02-24 0.04 0.07 < 0.04
[+] Expand Test Data
strontium 0.3 1500 496.3636 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.3 1500 410
2015 2015-08-13 0.3 1500 580
2015 2015-08-13 0.3 1500 530
2015 2015-08-13 0.3 1500 410
2015 2015-08-13 0.3 1500 400
2015 2015-02-24 0.3 1500 620
2015 2015-02-24 0.3 1500 440
2015 2015-02-24 0.3 1500 580
2015 2015-02-24 0.3 1500 600
2015 2015-02-24 0.3 1500 450
2015 2015-02-24 0.3 1500 440
[+] Expand Test Data
testosterone 0.0001 0 < 0.0001 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.0001 0 < 0.0001
2015 2015-08-13 0.0001 0 < 0.0001
2015 2015-08-13 0.0001 0 < 0.0001
2015 2015-08-13 0.0001 0 < 0.0001
2015 2015-02-24 0.0001 0 < 0.0001
2015 2015-02-24 0.0001 0 < 0.0001
2015 2015-02-24 0.0001 0 < 0.0001
2015 2015-02-24 0.0001 0 < 0.0001
2015 2015-02-24 0.0001 0 < 0.0001
[+] Expand Test Data
vanadium 0.2 21 2.6 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-13 0.2 21 2.3
2015 2015-08-13 0.2 21 2.5
2015 2015-08-13 0.2 21 2.6
2015 2015-08-13 0.2 21 2.4
2015 2015-08-13 0.2 21 2.8
2015 2015-02-24 0.2 21 3.4
2015 2015-02-24 0.2 21 2.4
2015 2015-02-24 0.2 21 2.4
2015 2015-02-24 0.2 21 2.6
2015 2015-02-24 0.2 21 2.5
2015 2015-02-24 0.2 21 2.7
[+] 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
CA59852 lead 2015-01-01 2017-12-31 0mg/L
CA41877 lead 2012-01-01 2014-12-31 0mg/L
191003411213LT4 lead 2011-01-01 2011-12-31 0.006mg/L
191003411203LT4 lead 2011-01-01 2011-12-31 0.006mg/L
191003410034L6M2ND-1 lead 2010-01-01 2010-12-31 0.005mg/L
191003410074L6M2ND-1 lead 2010-01-01 2010-12-31 0.006mg/L
191003410090L6M1ST-2 lead 2010-01-01 2010-12-31 0.007mg/L
191003410097L lead 2010-01-01 2010-12-31 0.006mg/L
191003410111L6M1ST-1 lead 2010-01-01 2010-12-31 0.006mg/L
191003410157L6M1ST-2 lead 2010-01-01 2010-12-31 0.007mg/L
191003410207L6M2ND-2 lead 2010-01-01 2010-12-31 0.007mg/L
191003409336L6M1ST-1 lead 2009-01-01 2009-12-31 0.01mg/L
191003409344L6M2ND-1 lead 2009-01-01 2009-12-31 0.013mg/L
191003409357L6M1ST-1 lead 2009-01-01 2009-12-31 0.005mg/L
191003409162L6M1ST-1 lead 2009-01-01 2009-12-31 0.005mg/L
191003409190LT1 lead 2009-01-01 2009-12-31 0.007mg/L
191003409260L lead 2009-01-01 2009-12-31 0.007mg/L
191003409267L lead 2009-01-01 2009-12-31 0.005mg/L
191003409270L6M2ND-1 lead 2009-01-01 2009-12-31 0.006mg/L
191003409273L6M2ND-1 lead 2009-01-01 2009-12-31 0.005mg/L
191003409273L6M2ND-2 lead 2009-01-01 2009-12-31 0.006mg/L
191003408170LT3 lead 2008-01-01 2008-12-31 0.007mg/L
191003408170L lead 2008-01-01 2008-12-31 0.007mg/L
191003408211L6M2ND-1 lead 2008-01-01 2008-12-31 0.006mg/L

Violations

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

Compliance Dates Rule Violation Type Contaminant Name Status
2013-09-01 - 2013-09-30 Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Known
2008-09-01 - 2008-09-30 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
2003-08-01 - 2003-08-31 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
2012-05-24 - N/A Ground Water Rule Monitoring, Source Water (GWR) E. COLI Returned to Compliance

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.