Public Water System: Pasadena-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: CA1910124
Type: Community water system
EPA Region: 09
Primary Source: Surface water purchased
Population Served: 162,176
150 S LOS ROBLES AVE
PASADENA, CA 91101
This public water system services 1 municipality in 1 county.
A summary view of tests in which a water contaminant found to exceed the Maximum Contaminant Level (MCL) set by the EPA.
We couldn't find any records of contaminants exceeding the regulated limits in your water.
Other Water Contaminants Tested
The following contaminants were tested and found to be within national EPA guidelines.
We couldn't find any records of contaminants in your water.
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|
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||Nitrates||Maximum Contaminant Level Violation, Average||Nitrate||Returned to Compliance|
|- N/A||Total Coliform Rule||Maximum Contaminant Level Violation, Monthly (TCR)||Coliform (TCR)||Returned to Compliance|
|- N/A||Nitrates||Monitoring, Check/Repeat/Confirmation||Nitrate||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.
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.