Picloram

Utilities Inc. - North Park Water Supply

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

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	ND	2	ND
2015	N/A	0	N/A
2016	ND	10	ND
2017	ND	2	ND
2018	N/A	0	N/A
2019	ND	12	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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

Date	Lab ID	Result
2014-02-19	AD89214	ND
2014-02-19	AD89214	ND
2016-05-17	35245513002	ND
2016-05-17	35245513001	ND
2016-05-17	35245513005	ND
2016-05-17	35245513004	ND
2016-05-17	35245513003	ND
2016-05-17	35245513001	ND
2016-05-17	35245513002	ND
2016-05-17	35245513003	ND
2016-05-17	35245513004	ND
2016-05-17	35245513005	ND
2017-03-14	35301348024	ND
2017-03-14	35301348024	ND
2019-02-26	35451101001	ND
2019-02-26	35451101005	ND
2019-02-26	35451101004	ND
2019-02-26	35451101003	ND
2019-02-26	35451101002	ND
2019-02-26	35451101001	ND
2019-02-26	35451101005	ND
2019-02-26	35451101004	ND
2019-02-26	35451101003	ND
2019-02-26	35451101002	ND
2019-10-15	35505694001	ND
2019-10-15	35505694001	ND