Public Water System: Santa Margarita Water District-nichols I'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: CA3000980
Type: Non-Transient non-community system
EPA Region: 09
Primary Service Area: Institution
Primary Source: Ground water
Population Served: 2,900
Contact Information
P.O. Box 7005
MISSION VIEJO, CA 92690-7005

This public water system services 146 zip codes in 1 county.

We could not find test result data for Santa Margarita Water District-nichols I.
However, this area is serviced by 166 or more other public water systems. Check your water bill to see which specific system applies. Here is a list of related systems:

See 156 more related public water systems »

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).

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 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. 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
CA57272 lead 2017-01-01 2017-06-30 0.0039mg/L
CA49009 lead 2015-07-01 2015-12-31 0mg/L
CA45332 lead 2015-01-01 2015-12-31 0mg/L
CA49006 lead 2015-01-01 2015-06-30 0mg/L
CA42033 lead 2014-07-01 2014-12-31 0mg/L
CA40136 lead 2014-01-01 2014-06-30 0mg/L
CA35778 copper 2013-07-01 2013-12-31 1.66mg/L
CA39526 lead 2013-07-01 2013-12-31 0.01mg/L
CA32152 lead 2013-01-01 2013-06-30 0mg/L
CA32153 copper 2013-01-01 2013-06-30 4.16mg/L
300098012028C copper 2012-01-01 2012-12-31 1.5mg/L
CA35754 copper 2012-07-01 2012-12-31 1.44mg/L
CA39502 lead 2012-07-01 2012-12-31 0.013mg/L
300098012203C copper 2012-01-01 2012-12-31 1.44mg/L
CA35747 copper 2012-01-01 2012-06-30 1.5mg/L
CA39495 lead 2012-01-01 2012-06-30 0mg/L
300098011204C copper 2011-01-01 2011-12-31 1.4mg/L
300098008096C copper 2008-01-01 2008-12-31 2mg/L


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

Compliance Dates Rule Violation Type Contaminant Name Status
2017-07-01 - 2017-09-30 Stage 2 Disinfectants and Disinfection Byproducts Rule Maximum Contaminant Level Violation, Average TTHM 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.


The origin of'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.