Public Water System: Gswc-south Arcadia

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: CA1910212
Type: Community water system
EPA Region: 09
Primary Service Area: Residential Area
Primary Source: Ground water
Population Served: 26,277 		Contact Information
CHAKMAK, ALEX
CHAKMAK, ALEX
401 S. San Dimas Canyon Rd.
SAN DIMAS, CA 91773

This public water system services 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 MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2014 2014-06-24 20 210 83
2014 2014-06-24 20 210 260
2014 2014-06-24 20 210 73
2014 2014-06-24 20 210 94
2014 2014-06-24 20 210 95
2014 2014-06-24 20 210 230
2014 2014-06-24 20 210 71
2014 2014-06-24 20 210 140
2014 2014-06-24 20 210 310
2013 2013-12-18 20 210 46
2013 2013-12-18 20 210 94
2013 2013-12-18 20 210 66
2013 2013-12-18 20 210 44
2013 2013-12-18 20 210 56
2013 2013-12-18 20 210 100
2013 2013-12-18 20 210 68
2013 2013-12-18 20 210 71
2013 2013-12-18 20 210 93

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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 2.4561 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-24 0.2 100 2.3
2014 2014-06-24 0.2 100 0.94
2014 2014-06-24 0.2 100 0.65
2014 2014-06-24 0.2 100 2.2
2014 2014-06-24 0.2 100 2.3
2014 2014-06-24 0.2 100 6.1
2014 2014-06-24 0.2 100 0.64
2014 2014-06-24 0.2 100 1.7
2014 2014-06-24 0.2 100 0.64
2013 2013-12-18 0.2 100 6.2
2013 2013-12-18 0.2 100 0.65
2013 2013-12-18 0.2 100 0.96
2013 2013-12-18 0.2 100 6.2
2013 2013-12-18 0.2 100 6.1
2013 2013-12-18 0.2 100 4.5
2013 2013-12-18 0.2 100 0.43
2013 2013-12-18 0.2 100 1.2
2013 2013-12-18 0.2 100 0.5
[+] Expand Test Data
chromium-6 0.03 0 2.7317 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-24 0.03 0 2.3
2014 2014-06-24 0.03 0 1
2014 2014-06-24 0.03 0 0.66
2014 2014-06-24 0.03 0 2.3
2014 2014-06-24 0.03 0 2.4
2014 2014-06-24 0.03 0 5.9
2014 2014-06-24 0.03 0 0.67
2014 2014-06-24 0.03 0 1.8
2014 2014-06-24 0.03 0 0.63
2013 2013-12-18 0.03 0 7
2013 2013-12-18 0.03 0 0.81
2013 2013-12-18 0.03 0 1.2
2013 2013-12-18 0.03 0 7.2
2013 2013-12-18 0.03 0 7.2
2013 2013-12-18 0.03 0 5.1
2013 2013-12-18 0.03 0 0.6
2013 2013-12-18 0.03 0 1.7
2013 2013-12-18 0.03 0 0.7
[+] Expand Test Data
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-24 1 70 < 1
2014 2014-06-24 1 70 < 1
2014 2014-06-24 1 70 < 1
2014 2014-06-24 1 70 < 1
2014 2014-06-24 1 70 < 1
2014 2014-06-24 1 70 < 1
2014 2014-06-24 1 70 < 1
2014 2014-06-24 1 70 < 1
2014 2014-06-24 1 70 < 1
2013 2013-12-18 1 70 < 1
2013 2013-12-18 1 70 < 1
2013 2013-12-18 1 70 < 1
2013 2013-12-18 1 70 < 1
2013 2013-12-18 1 70 < 1
2013 2013-12-18 1 70 < 1
2013 2013-12-18 1 70 < 1
2013 2013-12-18 1 70 < 1
2013 2013-12-18 1 70 < 1
[+] Expand Test Data
molybdenum 1 40 1.8333 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-24 1 40 2.5
2014 2014-06-24 1 40 < 1
2014 2014-06-24 1 40 2.6
2014 2014-06-24 1 40 2.5
2014 2014-06-24 1 40 2.3
2014 2014-06-24 1 40 2.1
2014 2014-06-24 1 40 2.6
2014 2014-06-24 1 40 < 1
2014 2014-06-24 1 40 < 1
2013 2013-12-18 1 40 4.2
2013 2013-12-18 1 40 < 1
2013 2013-12-18 1 40 1.5
2013 2013-12-18 1 40 4.2
2013 2013-12-18 1 40 4.1
2013 2013-12-18 1 40 2
2013 2013-12-18 1 40 2.4
2013 2013-12-18 1 40 < 1
2013 2013-12-18 1 40 < 1
[+] Expand Test Data
strontium 0.3 1500 273.3333 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-24 0.3 1500 290
2014 2014-06-24 0.3 1500 290
2014 2014-06-24 0.3 1500 260
2014 2014-06-24 0.3 1500 270
2014 2014-06-24 0.3 1500 280
2014 2014-06-24 0.3 1500 310
2014 2014-06-24 0.3 1500 250
2014 2014-06-24 0.3 1500 280
2014 2014-06-24 0.3 1500 300
2013 2013-12-18 0.3 1500 260
2013 2013-12-18 0.3 1500 290
2013 2013-12-18 0.3 1500 270
2013 2013-12-18 0.3 1500 270
2013 2013-12-18 0.3 1500 250
2013 2013-12-18 0.3 1500 280
2013 2013-12-18 0.3 1500 230
2013 2013-12-18 0.3 1500 260
2013 2013-12-18 0.3 1500 280
[+] Expand Test Data
vanadium 0.2 21 4.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-24 0.2 21 1.9
2014 2014-06-24 0.2 21 4.7
2014 2014-06-24 0.2 21 4.9
2014 2014-06-24 0.2 21 1.8
2014 2014-06-24 0.2 21 1.7
2014 2014-06-24 0.2 21 5.3
2014 2014-06-24 0.2 21 4.9
2014 2014-06-24 0.2 21 5.2
2014 2014-06-24 0.2 21 5
2013 2013-12-18 0.2 21 4.7
2013 2013-12-18 0.2 21 4.2
2013 2013-12-18 0.2 21 4.1
2013 2013-12-18 0.2 21 4.6
2013 2013-12-18 0.2 21 4.5
2013 2013-12-18 0.2 21 4.3
2013 2013-12-18 0.2 21 3.9
2013 2013-12-18 0.2 21 4.2
2013 2013-12-18 0.2 21 3.9
[+] Expand Test Data
1,1-dichloroethane 0.03 6.14 0.008 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-24 0.03 6.14 < 0.03
2014 2014-06-24 0.03 6.14 0.041
2014 2014-06-24 0.03 6.14 < 0.03
2014 2014-06-24 0.03 6.14 < 0.03
2014 2014-06-24 0.03 6.14 < 0.03
2013 2013-12-18 0.03 6.14 < 0.03
2013 2013-12-18 0.03 6.14 0.039
2013 2013-12-18 0.03 6.14 < 0.03
2013 2013-12-18 0.03 6.14 < 0.03
2013 2013-12-18 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 2014-06-24 0.03 0.0004 < 0.03
2014 2014-06-24 0.03 0.0004 < 0.03
2014 2014-06-24 0.03 0.0004 < 0.03
2014 2014-06-24 0.03 0.0004 < 0.03
2014 2014-06-24 0.03 0.0004 < 0.03
2013 2013-12-18 0.03 0.0004 < 0.03
2013 2013-12-18 0.03 0.0004 < 0.03
2013 2013-12-18 0.03 0.0004 < 0.03
2013 2013-12-18 0.03 0.0004 < 0.03
2013 2013-12-18 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 2014-06-24 0.1 0.0103 < 0.1
2014 2014-06-24 0.1 0.0103 < 0.1
2014 2014-06-24 0.1 0.0103 < 0.1
2014 2014-06-24 0.1 0.0103 < 0.1
2014 2014-06-24 0.1 0.0103 < 0.1
2013 2013-12-18 0.1 0.0103 < 0.1
2013 2013-12-18 0.1 0.0103 < 0.1
2013 2013-12-18 0.1 0.0103 < 0.1
2013 2013-12-18 0.1 0.0103 < 0.1
2013 2013-12-18 0.1 0.0103 < 0.1
[+] Expand Test Data
1,4-dioxane 0.07 0.35 0.0865 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-24 0.07 0.35 < 0.07
2014 2014-06-24 0.07 0.35 0.16
2014 2014-06-24 0.07 0.35 < 0.07
2014 2014-06-24 0.07 0.35 0.098
2014 2014-06-24 0.07 0.35 0.19
2013 2013-12-18 0.07 0.35 < 0.07
2013 2013-12-18 0.07 0.35 0.15
2013 2013-12-18 0.07 0.35 < 0.07
2013 2013-12-18 0.07 0.35 0.087
2013 2013-12-18 0.07 0.35 0.18
[+] Expand Test Data
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-24 0.2 140 < 0.2
2014 2014-06-24 0.2 140 < 0.2
2014 2014-06-24 0.2 140 < 0.2
2014 2014-06-24 0.2 140 < 0.2
2014 2014-06-24 0.2 140 < 0.2
2013 2013-12-18 0.2 140 < 0.2
2013 2013-12-18 0.2 140 < 0.2
2013 2013-12-18 0.2 140 < 0.2
2013 2013-12-18 0.2 140 < 0.2
2013 2013-12-18 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 2014-06-24 0.2 2.69 < 0.2
2014 2014-06-24 0.2 2.69 < 0.2
2014 2014-06-24 0.2 2.69 < 0.2
2014 2014-06-24 0.2 2.69 < 0.2
2014 2014-06-24 0.2 2.69 < 0.2
2013 2013-12-18 0.2 2.69 < 0.2
2013 2013-12-18 0.2 2.69 < 0.2
2013 2013-12-18 0.2 2.69 < 0.2
2013 2013-12-18 0.2 2.69 < 0.2
2013 2013-12-18 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 2014-06-24 0.06 90 < 0.06
2014 2014-06-24 0.06 90 < 0.06
2014 2014-06-24 0.06 90 < 0.06
2014 2014-06-24 0.06 90 < 0.06
2014 2014-06-24 0.06 90 < 0.06
2013 2013-12-18 0.06 90 < 0.06
2013 2013-12-18 0.06 90 < 0.06
2013 2013-12-18 0.06 90 < 0.06
2013 2013-12-18 0.06 90 < 0.06
2013 2013-12-18 0.06 90 < 0.06
[+] Expand Test Data
HCFC-22 0.08 0 0.027 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-24 0.08 0 < 0.08
2014 2014-06-24 0.08 0 0.14
2014 2014-06-24 0.08 0 < 0.08
2014 2014-06-24 0.08 0 < 0.08
2014 2014-06-24 0.08 0 < 0.08
2013 2013-12-18 0.08 0 < 0.08
2013 2013-12-18 0.08 0 0.13
2013 2013-12-18 0.08 0 < 0.08
2013 2013-12-18 0.08 0 < 0.08
2013 2013-12-18 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 2014-06-24 0.09 0 < 0.09
2014 2014-06-24 0.09 0 < 0.09
2014 2014-06-24 0.09 0 < 0.09
2014 2014-06-24 0.09 0 < 0.09
2014 2014-06-24 0.09 0 < 0.09
2013 2013-12-18 0.09 0 < 0.09
2013 2013-12-18 0.09 0 < 0.09
2013 2013-12-18 0.09 0 < 0.09
2013 2013-12-18 0.09 0 < 0.09
2013 2013-12-18 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 2014-06-24 0.01 0 < 0.01
2014 2014-06-24 0.01 0 < 0.01
2014 2014-06-24 0.01 0 < 0.01
2014 2014-06-24 0.01 0 < 0.01
2014 2014-06-24 0.01 0 < 0.01
2013 2013-12-18 0.01 0 < 0.01
2013 2013-12-18 0.01 0 < 0.01
2013 2013-12-18 0.01 0 < 0.01
2013 2013-12-18 0.01 0 < 0.01
2013 2013-12-18 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 2014-06-24 0.03 0 < 0.03
2014 2014-06-24 0.03 0 < 0.03
2014 2014-06-24 0.03 0 < 0.03
2014 2014-06-24 0.03 0 < 0.03
2014 2014-06-24 0.03 0 < 0.03
2013 2013-12-18 0.03 0 < 0.03
2013 2013-12-18 0.03 0 < 0.03
2013 2013-12-18 0.03 0 < 0.03
2013 2013-12-18 0.03 0 < 0.03
2013 2013-12-18 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 2014-06-24 0.02 0 < 0.02
2014 2014-06-24 0.02 0 < 0.02
2014 2014-06-24 0.02 0 < 0.02
2014 2014-06-24 0.02 0 < 0.02
2014 2014-06-24 0.02 0 < 0.02
2013 2013-12-18 0.02 0 < 0.02
2013 2013-12-18 0.02 0 < 0.02
2013 2013-12-18 0.02 0 < 0.02
2013 2013-12-18 0.02 0 < 0.02
2013 2013-12-18 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 2014-06-24 0.02 0.07 < 0.02
2014 2014-06-24 0.02 0.07 < 0.02
2014 2014-06-24 0.02 0.07 < 0.02
2014 2014-06-24 0.02 0.07 < 0.02
2014 2014-06-24 0.02 0.07 < 0.02
2013 2013-12-18 0.02 0.07 < 0.02
2013 2013-12-18 0.02 0.07 < 0.02
2013 2013-12-18 0.02 0.07 < 0.02
2013 2013-12-18 0.02 0.07 < 0.02
2013 2013-12-18 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 2014-06-24 0.04 0.07 < 0.04
2014 2014-06-24 0.04 0.07 < 0.04
2014 2014-06-24 0.04 0.07 < 0.04
2014 2014-06-24 0.04 0.07 < 0.04
2014 2014-06-24 0.04 0.07 < 0.04
2013 2013-12-18 0.04 0.07 < 0.04
2013 2013-12-18 0.04 0.07 < 0.04
2013 2013-12-18 0.04 0.07 < 0.04
2013 2013-12-18 0.04 0.07 < 0.04
2013 2013-12-18 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
CA57922 lead 2015-01-01 2017-12-31 0mg/L
CA41725 lead 2012-01-01 2014-12-31 0.001mg/L
191021211244LT3 lead 2011-01-01 2011-12-31 0.001mg/L
191021211251L lead 2011-01-01 2011-12-31 0.005mg/L
191021211200L1ST 6 lead 2011-01-01 2011-12-31 0.005mg/L
191021211230LYR1994 lead 2011-01-01 2011-12-31 0.005mg/L
191021209264LT2 lead 2009-01-01 2009-12-31 0.003mg/L
191021209273LT1 lead 2009-01-01 2009-12-31 0.002mg/L
191021208206LT2 lead 2008-01-01 2008-12-31 0.003mg/L
191021208222L lead 2008-01-01 2008-12-31 0.005mg/L
191021208206L lead 2008-01-01 2008-12-31 0.0027mg/L

Violations

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

Compliance Dates Rule Violation Type Contaminant Name Status
2000-06-20 - 2000-10-19 Miscellaneous Operations Report - 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.