Public Water System: Los Angeles Co Ww Dist 40 Reg 38 Lake La

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: CA1910005
Type: Community water system
EPA Region: 09
Primary Service Area: Residential Area
Primary Source: Surface water purchased
Population Served: 13,705 		Contact Information
ARIKI, ADAM
ARIKI, ADAM
P.O. BOX 1460
ALHAMBRA, CA 91802-1460

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   (0)
chlorate

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 MRL HRL Test Result
2014 2014-10-08 20 210 < 20
2014 2014-10-08 20 210 280
2014 2014-07-09 20 210 120
2014 2014-07-09 20 210 39
2014 2014-07-09 20 210 < 20
2014 2014-07-09 20 210 170
2014 2014-04-14 20 210 < 20
2014 2014-04-14 20 210 < 20
2014 2014-01-15 20 210 110
2014 2014-01-15 20 210 < 20
2014 2014-01-15 20 210 < 20
2014 2014-01-15 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 MRL HRL Avg Result
chromium 0.2 100 7.0158 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-08 0.2 100 11
2014 2014-10-08 0.2 100 1.2
2014 2014-07-09 0.2 100 4.4
2014 2014-07-09 0.2 100 10
2014 2014-07-09 0.2 100 12
2014 2014-07-09 0.2 100 0.69
2014 2014-04-14 0.2 100 11
2014 2014-04-14 0.2 100 11
2014 2014-01-15 0.2 100 1.5
2014 2014-01-15 0.2 100 11
2014 2014-01-15 0.2 100 9.2
2014 2014-01-15 0.2 100 1.2
[+] Expand Test Data
chromium-6 0.03 0 7.5875 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-08 0.03 0 12
2014 2014-10-08 0.03 0 0.9
2014 2014-07-09 0.03 0 4.4
2014 2014-07-09 0.03 0 9.9
2014 2014-07-09 0.03 0 12
2014 2014-07-09 0.03 0 0.65
2014 2014-04-14 0.03 0 12
2014 2014-04-14 0.03 0 12
2014 2014-01-15 0.03 0 1.7
2014 2014-01-15 0.03 0 13
2014 2014-01-15 0.03 0 11
2014 2014-01-15 0.03 0 1.5
[+] Expand Test Data
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-08 1 70 < 1
2014 2014-10-08 1 70 < 1
2014 2014-07-09 1 70 < 1
2014 2014-07-09 1 70 < 1
2014 2014-07-09 1 70 < 1
2014 2014-07-09 1 70 < 1
2014 2014-04-14 1 70 < 1
2014 2014-04-14 1 70 < 1
2014 2014-01-15 1 70 < 1
2014 2014-01-15 1 70 < 1
2014 2014-01-15 1 70 < 1
2014 2014-01-15 1 70 < 1
[+] Expand Test Data
molybdenum 1 40 4.175 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-08 1 40 3.8
2014 2014-10-08 1 40 5.5
2014 2014-07-09 1 40 4.8
2014 2014-07-09 1 40 4.5
2014 2014-07-09 1 40 3.2
2014 2014-07-09 1 40 5.7
2014 2014-04-14 1 40 3.4
2014 2014-04-14 1 40 3.1
2014 2014-01-15 1 40 4.7
2014 2014-01-15 1 40 4.3
2014 2014-01-15 1 40 2.9
2014 2014-01-15 1 40 4.2
[+] Expand Test Data
strontium 0.3 1500 481.6667 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-08 0.3 1500 560
2014 2014-10-08 0.3 1500 350
2014 2014-07-09 0.3 1500 500
2014 2014-07-09 0.3 1500 600
2014 2014-07-09 0.3 1500 650
2014 2014-07-09 0.3 1500 390
2014 2014-04-14 0.3 1500 540
2014 2014-04-14 0.3 1500 560
2014 2014-01-15 0.3 1500 290
2014 2014-01-15 0.3 1500 440
2014 2014-01-15 0.3 1500 640
2014 2014-01-15 0.3 1500 260
[+] Expand Test Data
vanadium 0.2 21 8.4167 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-08 0.2 21 9.1
2014 2014-10-08 0.2 21 5.3
2014 2014-07-09 0.2 21 9.5
2014 2014-07-09 0.2 21 10
2014 2014-07-09 0.2 21 10
2014 2014-07-09 0.2 21 8.9
2014 2014-04-14 0.2 21 9.4
2014 2014-04-14 0.2 21 9.4
2014 2014-01-15 0.2 21 6.4
2014 2014-01-15 0.2 21 8.8
2014 2014-01-15 0.2 21 8.4
2014 2014-01-15 0.2 21 5.8
[+] Expand Test Data
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-08 0.03 6.14 < 0.03
2014 2014-07-09 0.03 6.14 < 0.03
2014 2014-07-09 0.03 6.14 < 0.03
2014 2014-04-14 0.03 6.14 < 0.03
2014 2014-01-15 0.03 6.14 < 0.03
2014 2014-01-15 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 2014-10-08 0.03 0.0004 < 0.03
2014 2014-07-09 0.03 0.0004 < 0.03
2014 2014-07-09 0.03 0.0004 < 0.03
2014 2014-04-14 0.03 0.0004 < 0.03
2014 2014-01-15 0.03 0.0004 < 0.03
2014 2014-01-15 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 2014-10-08 0.1 0.0103 < 0.1
2014 2014-07-09 0.1 0.0103 < 0.1
2014 2014-07-09 0.1 0.0103 < 0.1
2014 2014-04-14 0.1 0.0103 < 0.1
2014 2014-01-15 0.1 0.0103 < 0.1
2014 2014-01-15 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 2014-10-08 0.07 0.35 < 0.07
2014 2014-07-09 0.07 0.35 < 0.07
2014 2014-07-09 0.07 0.35 < 0.07
2014 2014-04-14 0.07 0.35 < 0.07
2014 2014-01-15 0.07 0.35 < 0.07
2014 2014-01-15 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 2014-10-08 0.2 140 < 0.2
2014 2014-07-09 0.2 140 < 0.2
2014 2014-07-09 0.2 140 < 0.2
2014 2014-04-14 0.2 140 < 0.2
2014 2014-01-15 0.2 140 < 0.2
2014 2014-01-15 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 2014-10-08 0.2 2.69 < 0.2
2014 2014-07-09 0.2 2.69 < 0.2
2014 2014-07-09 0.2 2.69 < 0.2
2014 2014-04-14 0.2 2.69 < 0.2
2014 2014-01-15 0.2 2.69 < 0.2
2014 2014-01-15 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
2014 2014-10-08 0.06 90 < 0.06
2014 2014-07-09 0.06 90 < 0.06
2014 2014-07-09 0.06 90 < 0.06
2014 2014-04-14 0.06 90 < 0.06
2014 2014-01-15 0.06 90 < 0.06
2014 2014-01-15 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
2014 2014-10-08 0.08 0 < 0.08
2014 2014-07-09 0.08 0 < 0.08
2014 2014-07-09 0.08 0 < 0.08
2014 2014-04-14 0.08 0 < 0.08
2014 2014-01-15 0.08 0 < 0.08
2014 2014-01-15 0.08 0 < 0.08
[+] Expand Test Data
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-08 0.09 0 < 0.09
2014 2014-07-09 0.09 0 < 0.09
2014 2014-07-09 0.09 0 < 0.09
2014 2014-04-14 0.09 0 < 0.09
2014 2014-01-15 0.09 0 < 0.09
2014 2014-01-15 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 2014-10-08 0.01 0 < 0.01
2014 2014-07-09 0.01 0 < 0.01
2014 2014-07-09 0.01 0 < 0.01
2014 2014-04-14 0.01 0 < 0.01
2014 2014-01-15 0.01 0 < 0.01
2014 2014-01-15 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 2014-10-08 0.03 0 < 0.03
2014 2014-07-09 0.03 0 < 0.03
2014 2014-07-09 0.03 0 < 0.03
2014 2014-04-14 0.03 0 < 0.03
2014 2014-01-15 0.03 0 < 0.03
2014 2014-01-15 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 2014-10-08 0.02 0 < 0.02
2014 2014-07-09 0.02 0 < 0.02
2014 2014-07-09 0.02 0 < 0.02
2014 2014-04-14 0.02 0 < 0.02
2014 2014-01-15 0.02 0 < 0.02
2014 2014-01-15 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 2014-10-08 0.02 0.07 < 0.02
2014 2014-07-09 0.02 0.07 < 0.02
2014 2014-07-09 0.02 0.07 < 0.02
2014 2014-04-14 0.02 0.07 < 0.02
2014 2014-01-15 0.02 0.07 < 0.02
2014 2014-01-15 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 2014-10-08 0.04 0.07 < 0.04
2014 2014-07-09 0.04 0.07 < 0.04
2014 2014-07-09 0.04 0.07 < 0.04
2014 2014-04-14 0.04 0.07 < 0.04
2014 2014-01-15 0.04 0.07 < 0.04
2014 2014-01-15 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
CA59580 lead 2015-01-01 2017-12-31 0mg/L
CA41874 lead 2012-01-01 2014-12-31 0mg/L
CA38774 lead 2009-01-01 2011-12-31 0mg/L
191000511257LT6 lead 2011-01-01 2011-12-31 0.005mg/L
191000509156LT3 lead 2009-01-01 2009-12-31 0.005mg/L
191000509167LT4 lead 2009-01-01 2009-12-31 0.005mg/L
191000509174LT5 lead 2009-01-01 2009-12-31 0.005mg/L
191000508351LT5 lead 2008-01-01 2008-12-31 0.005mg/L
191000508207L lead 2008-01-01 2008-12-31 0.005mg/L
191000508207LT1 lead 2008-01-01 2008-12-31 0.005mg/L
191000508239L lead 2008-01-01 2008-12-31 0.005mg/L
191000508240L lead 2008-01-01 2008-12-31 0.005mg/L
191000508256L lead 2008-01-01 2008-12-31 0.013mg/L
191000508322LT2 lead 2008-01-01 2008-12-31 0.005mg/L
191000508351L 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
- N/A Miscellaneous Notification, Public - Known

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.