The PUD abides by the water quality regulations outlined in the State Department of Health and the United States Environmental Protection Agency’s Safe Drinking Water Standards.
All public water systems are required to conduct water quality testing of some form or another. The types of testing and frequency will depend on the size, location, susceptibility to contamination and other factors. There are two general categories of tests that are scheduled:
Bacteriological tests are conducted monthly at various locations of the distribution system. The PUD maintains a Coliform testing plan that identifies frequency and location of sample sites.
Chemical testing varies tremendously. The types of tests conducted include:
The PUD takes the sample and sends them into a state-approved laboratory, which then sends the results to the State of Washington Department of Health as well as to the PUD.
For more information about what we are doing and where your water comes from, see our maps at the links shown below.