Picloram

Marina Coast Water District

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	13	ND
2017	ND	1	ND
2018	N/A	0	N/A
2019	ND	14	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
2016-08-22	9590-027-1247	ND
2016-09-20	9590-028-1027	ND
2016-09-20	9590-008-0823	ND
2016-09-20	9590-009-0747	ND
2016-09-20	9590-034-0904	ND
2016-09-20	9590-026-1104	ND
2016-09-20	9590-033-0948	ND
2016-12-06	9590-026-1056	ND
2016-12-06	9590-028-0725	ND
2016-12-06	9590-027-0835	ND
2016-12-06	9590-033-0753	ND
2016-12-06	9590-034-0958	ND
2016-12-06	9590-008-0926	ND
2017-02-14	9590-009-0810	ND
2019-09-25	9590-027-0918	ND
2019-09-25	9590-033-1025	ND
2019-09-25	9590-028-0945	ND
2019-09-25	9590-034-1134	ND
2019-09-25	9590-026-1220	ND
2019-09-25	9590-009-0815	ND
2019-09-25	9590-008-0725	ND
2019-12-17	9590-027-1000	ND
2019-12-17	9590-028-1110	ND
2019-12-17	9590-026-1231	ND
2019-12-17	9590-009-1351	ND
2019-12-17	9590-033-1153	ND
2019-12-17	9590-008-1311	ND
2019-12-17	9590-034-0913	ND