Caffeine
City of San Jose - EVG/EDV/COY
Caffeine, from coffee and other beverages, is a key indicator of water contamination from wastewater effluent.
5
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 5 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-18 | 9590-012-0902 | ND |
| 2014-02-25 | 9590-005-0948 | ND |
| 2014-02-25 | 9590-006-0859 | ND |
| 2014-03-11 | 9590-012-1000 | ND |
| 2014-04-08 | 9590-012-0904 | ND |