Know Your Environment. Protect Your Health.

Caffeine

California Water Service Company Oak Hills

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

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020N/A00N/A
2021ND10ND
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2018-05-03CA2710019_001_001-201805031433ND
2019-06-19CA2710019_008_008-201906191316ND
2019-09-12CA2710019_003_003-201909121404ND
2021-06-29CA2710019_001_001-202106291352ND