Picloram

Zachary Water System

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	N/A	0	N/A
2015	N/A	0	N/A
2016	ND	10	ND
2017	N/A	0	N/A
2018	ND	2	ND
2019	ND	16	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
2016-02-29	35232145006	ND
2016-02-29	35232145006	ND
2016-07-26	35256952002	ND
2016-07-26	35256952001	ND
2016-07-26	35256952002	ND
2016-07-26	35256952004	ND
2016-07-26	35256952003	ND
2016-07-26	35256952001	ND
2016-07-26	35256952003	ND
2016-07-26	35256952004	ND
2018-11-26	35433146001	ND
2018-11-26	35433146001	ND
2019-06-18	35476846004	ND
2019-06-18	35476846003	ND
2019-06-18	35476846002	ND
2019-06-18	35476846001	ND
2019-06-18	35476846004	ND
2019-06-18	35476846001	ND
2019-06-18	35476846002	ND
2019-06-18	35476846003	ND
2019-08-12	35489898001	ND
2019-08-12	35489898004	ND
2019-08-12	35489898003	ND
2019-08-12	35489898002	ND
2019-08-12	35489898001	ND
2019-08-12	35489898004	ND
2019-08-12	35489898003	ND
2019-08-12	35489898002	ND