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: CA1910127 Type: Community water system EPA Region: 09
Primary Service Area: Residential Area
Primary Source: Surface water purchased
Population Served: 33,300
Contact Information FOSTER, SIOBHAN FOSTER, SIOBHAN 534 N. BARRANCA AVENUE COVINA, CA 91723
This public water system services 1 municipality in 1 county.
Summary Results
A summary view of the the times a water contaminant was tested and found to exceed the level set by the EPA (the MCL).
This a view of violations of maximum contaminant levels. In the expanded view you can see each know test date for a given contaminant, the result of the test, the minimum level that can be recognized in a test (MRL), and upper limit that is considered healthy (HRL).
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. Lead and copper can be — and often are — added to drinking water in between the water facility and a tap.
Sample ID
Contaminant
Sampling Start Date
Sampling End Date
Result
CA65242
lead
2017-01-01
2019-12-31
0mg/L
CA53656
lead
2014-01-01
2016-12-31
0mg/L
CA37592
lead
2011-01-01
2013-12-31
0mg/L
CA19436
lead
2008-01-01
2010-12-31
0mg/L
191012710231LT4
lead
2010-01-01
2010-12-31
0.005mg/L
191012710179LT2
lead
2010-01-01
2010-12-31
0.005mg/L
191012710202L1ST 6
lead
2010-01-01
2010-12-31
0.005mg/L
191012710264LT3
lead
2010-01-01
2010-12-31
0.005mg/L
191012710271LT1
lead
2010-01-01
2010-12-31
0.005mg/L
191012709239L2ND 6
lead
2009-01-01
2009-12-31
0.005mg/L
191012708014LT4
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
Nitrates
Maximum Contaminant Level Violation, Single Sample
Nitrate
Known
- N/A
Total Coliform Rule
Monitoring, Routine Minor (TCR)
Coliform (TCR)
Returned to Compliance
- N/A
Surface Water Treatment Rule
Treatment Technique (SWTR and GWR)
Surface Water Treatment Rule
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.