Picloram

Bi County WSC 1

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	11	ND
2015	N/A	0	N/A
2016	N/A	0	N/A
2017	ND	11	ND
2018	N/A	0	N/A
2019	ND	3	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
2014-01-23	Q1402181010	ND
2014-01-23	Q1402181009	ND
2014-01-23	Q1402181008	ND
2014-01-23	Q1402181007	ND
2014-01-23	Q1402181006	ND
2014-01-23	Q1402181005	ND
2014-01-23	Q1402181004	ND
2014-01-23	Q1402181003	ND
2014-01-23	Q1402181002	ND
2014-01-23	Q1402181001	ND
2014-01-23	Q1402181057	ND
2017-01-05	Q1700559011	ND
2017-01-05	Q1700559033	ND
2017-01-05	Q1700559032	ND
2017-01-05	Q1700559010	ND
2017-03-29	Q1713282023	ND
2017-03-29	Q1713282022	ND
2017-03-29	Q1713282021	ND
2017-03-29	Q1713282020	ND
2017-03-29	Q1713282019	ND
2017-10-02	Q1748547014	ND
2017-10-02	Q1748547010	ND
2019-06-11	Q1934121010	ND
2019-08-07	Q1951925010	ND
2019-10-14	Q1972404011	ND