Annual Water Quality Report


The District's Annual Report contains a wealth of information about your water including where it comes from, substances expected to be in water, health information, data on your water quality, and more....

The District's Annual Report conforms to the regulation under the Safe Drinking Water Act requiring water utilities to provide detailed water quality information to each of their customers annually. The District is committed to providing you with this information about your water supply because customers who are well informed are the best allies in supporting improvements necessary to maintain the highest drinking water standards.


The District's annual water quality report is typically released in June of each year for the prior year. Just click on the report below to open. The file will open automatically if Adobe Reader is installed on your computer. If the file does not open, just click on the Adobe Reader icon below to download the FREE Acrobat Reader program. It's easy! This program will enable you to view the most recent water quality report.

 Water Quality Report 2011

 Water Quality Report 2012

 Water Quality Report 2013

 Water Quality Report 2014

 Water Quality Report 2015

 Water Quality Report 2016

  CCR-2017 Water Quality Report 2017

For easy viewing of our publications in the manner in which they were intended, we have converted many of our publications into Adobe® Acrobat.PDF files. If you do not already have the FREE Acrobat Reader, please click the following button to get Acrobat Reader from Adobe® before you attempt to download the files.




271 S. Brea Canyon Road
Walnut, California 91789
     (909) 595-1268    
(909) 595-7554
Monday-Thursday 7am-5pm
Friday 7am - 4pm



The next Regular Board Meeting will be held on Tuesday, November 13, 2018
at 5:00 p.m. 

Stage 1 Mandatory
Water Conservation Measures