Know Your Environment. Protect Your Health.

Picloram

Kent Water Department

NOTE: Kent Water Department purchases water from City of Tacoma which is required to test for picloram. Sample information shown below was taken by City of Tacoma.

Picloram is a herbicide that in studies of laboratory animals has been linked with reduced testicular size and damage to the liver and thyroid.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019N/A00N/A
2020N/A00N/A
2021ND90ND
2022ND30ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 166 ppb

The EWG Health Guideline of 166 ppb for picloram was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against change to internal organs.

EPA Maximum Contaminant
Level (MCL): 500 ppb

The legal limit for picloram, established in 1992, was based on toxicity studies in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

NOTE: Kent Water Department purchases water from City of Tacoma which is required to test for picloram. Sample information shown below was taken by City of Tacoma.

Date Lab ID Result
2021-06-214149605ND
2021-06-214149607ND
2021-06-214149606ND
2021-06-304142829ND
2021-06-304142830ND
2021-07-214157684ND
2021-07-214157695ND
2021-07-224157703ND
2022-02-014258884ND
2022-09-154369966ND
2022-11-154383023ND
2023-09-054543470ND
2023-09-064543472ND