Caffeine
California Water Service (CWS) - Los Altos Suburban
NOTE: California Water Service (CWS) - Los Altos Suburban purchases water from Santa Clara Valley Water District which is required to test for caffeine. Sample information shown below was taken by Santa Clara Valley Water District.
Caffeine, from coffee and other beverages, is a key indicator of water contamination from wastewater effluent.
0
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 12 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 30 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
NOTE: California Water Service (CWS) - Los Altos Suburban purchases water from Santa Clara Valley Water District which is required to test for caffeine. Sample information shown below was taken by Santa Clara Valley Water District.
| Date | Lab ID | Result |
|---|