Water source

West San Martin Water Works has three ground water wells that supply all of the water that it serves. There are treatment processes that effect different sections of the water system. These include: chlorine disinfection and perchlorate removal.

Regulation

West San Martin Water Works is regulated by the California Department of Public Health in regards to water quality and schedule of water testing.

2016 Consumer Confidence Report
The Consumer Confidence Report is required by the California Department of Public Health and reports on the previous year. It is prepared annually and distributed to the consumers.