Caffeine
California Water Service Co-lake Hughes
Caffeine, from coffee and other beverages, is a key indicator of water contamination from wastewater effluent.
4
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 |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 2 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 2 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-07-20 | 9590-001-1101 | ND |
| 2015-07-20 | 9590-005-1458 | ND |
| 2018-07-05 | 9590-001-1204 | ND |
| 2018-07-05 | 9590-005-1225 | ND |