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EWG's Tap Water Database — 2021 UPDATE

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Picloram

Colchester Commons

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

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND10ND
2016ND30ND
2017ND10ND
2018ND10ND
2019ND30ND

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
2014-02-19BG10471SOC5ND
2014-04-18BG34477SOC5ND
2014-07-29BG83661SOC5ND
2014-10-16BH28216SOC5ND
2015-04-24BJ07685SOC5ND
2016-03-24BK87904SOC5ND
2016-03-24BK87905SOC5ND
2016-03-24BK87906SOC5ND
2017-10-10BZ18334SOC5ND
2018-04-27CA37957SOC5ND
2019-10-21CE44558ND
2019-10-21CE44559ND
2019-10-21CE44556ND