Know Your Environment. Protect Your Health.

Picloram

Guilford Water Authority

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

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND10ND
2020ND60ND
2021N/A00N/A
2022N/A00N/A
2023ND100ND

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

Date Lab ID Result
2018-05-298055384-01ND
2018-09-048091925-01ND
2018-12-118122846-01ND
2019-03-059032320-01ND
2020-06-0922559586.00ND
2020-06-0922559556.00ND
2020-06-0922559526.00ND
2020-09-0923136528.00ND
2020-09-0923136551.00ND
2020-09-0923136581.00ND
2023-05-1729053231.00ND
2023-05-1729053247.00ND
2023-05-1729053263.00ND
2023-05-2429053421.00ND
2023-05-2429053388.00ND
2023-07-1829651141.00ND
2023-07-1829651233.00ND
2023-07-1829651153.00ND
2023-08-0129651261.00ND
2023-08-0129651208.00ND