Emergency Water Purification

General Information

The District remains firmly committed to providing safe drinking water to your home in compliance with all state and federal drinking water regulations.

Rest assured that the District would notify you immediately following a catastrophic occurrence, such as a major earthquake, that ruptures water pipelines to the extent that you would need to purify your tap water before drinking it.

In addition, there may be times when you are camping or hiking and you need to purify water from a river or stream before drinking it.

Purification methods for suspected bacterial contamination

Purify all drinking water suspected of bacterial contamination by one of the following methods:

  1. Use commercial purification tablets, available at camping or drug stores. Generally, these are iodine-based tablets that are effective against bacterial pathogens and Giardia. Be sure to carefully follow the instructions.

  2. Boil water vigorously for three minutes to inactivate all major waterborne bacterial pathogens and protozoa such as Giardia and Cryptosporidium.

  3. Add liquid chlorine bleach at a rate of 8 drops per gallon to clear water or 16 drops per gallon to cloudy water. After adding, allow water to stand one hour before drinking.


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