State Water Project – Water Quality Data
The District obtains virtually all of its water supply from the California Aqueduct of the State Water Project (SWP). Use the links below to obtain SWP water quality data. Note that water quality can vary significantly from month to month and year to year. For example, salt content (EC) is lower in spring than in the fall and lower in wet water years than dry water years. The Engineering Department can provide assistance upon request.
The closest SWP sampling points to the District are:
For recent daily and monthly water quality data for EC, pH, turbidity, temperature
- First check on box “O&M CA Aqueduct Grab Sample Data”, then click on “Get Stations”
- Then check on “Teerink Pumping Plant”, Which is last on the list.
- Then at the bottom, select a date(s) and format.
Aqueduct Water Bacteriological Analysis, Samples taken at District Headquarters:
Bacterial Analysis Data