Chrysene
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 chrysene. Sample information shown below was taken by Santa Clara Valley Water District.
Chrysene is a polycyclic aromatic hydrocarbon, or PAH, released from combustion of fossil fuels and waste incinerators. PAHs increase the risk of cancer; damage the immune, nervous and reproductive systems; and can harm developing fetuses.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 11 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 1 | 0 | ND |
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 chrysene. Sample information shown below was taken by Santa Clara Valley Water District.
| Date | Lab ID | Result |
|---|---|---|
| 2021-11-08 | CA4310027_025_025-202111081055 | ND |
| 2021-11-09 | CA4310027_006_006-202111091150 | ND |
| 2021-11-09 | CA4310027_001_001-202111091030 | ND |
| 2021-11-09 | CA4310027_011_011-202111090820 | ND |
| 2021-11-09 | CA4310027_024_024-202111091106 | ND |
| 2021-11-09 | CA4310027_007_007-202111090950 | ND |
| 2021-11-09 | CA4310027_022_022-202111091036 | ND |
| 2021-11-09 | CA4310027_023_023-202111091006 | ND |
| 2021-11-09 | CA4310027_005_005-202111091040 | ND |
| 2021-12-14 | CA4310027_009_009-202112140941 | ND |
| 2021-12-16 | CA4310027_004_004-202112161158 | ND |