Know Your Environment. Protect Your Health.

Picloram

The Oaks Water Supply Corporation

NOTE: The Oaks Water Supply Corporation purchases water from San Antonio Water System which is required to test for picloram. Sample information shown below was taken by San Antonio 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.

 

96

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND70ND
2020ND330ND
2021ND40ND
2022ND50ND
2023ND310ND

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

NOTE: The Oaks Water Supply Corporation purchases water from San Antonio Water System which is required to test for picloram. Sample information shown below was taken by San Antonio Water System.

Date Lab ID Result
2018-03-01AE16420ND
2018-05-10AE25988ND
2018-07-02AE32301ND
2018-08-31AE39182ND
2018-11-19AE46528ND
2018-11-19AE46525ND
2018-12-13AE48873ND
2019-01-30AE52285ND
2019-01-31AE52510ND
2019-03-28AE60522ND
2019-03-28AE60523ND
2019-04-23AE63412ND
2019-04-25AE63785ND
2019-11-26AE90663ND
2020-02-19AE99069ND
2020-03-26AF04771ND
2020-03-26AF04776ND
2020-03-30AF04918ND
2020-03-30AF04919ND
2020-03-30AF04920ND
2020-03-31AF05115ND
2020-03-31AF05116ND
2020-03-31AF05117ND
2020-06-15AF15400ND
2020-07-21AF20501ND
2020-07-21AF20499ND
2020-10-05AF29539ND
2020-10-05AF29540ND
2020-10-05AF29541ND
2020-10-07AF29860ND
2020-10-07AF29861ND
2020-11-11AF34203ND
2020-11-11AF34202ND
2020-11-11AF34196ND
2020-11-12AF34436ND
2020-11-16AF34675ND
2020-11-16AF34674ND
2020-11-16AF34673ND
2020-11-17AF34944ND
2020-11-17AF34945ND
2020-11-17AF34943ND
2020-11-18AF35141ND
2020-11-18AF35140ND
2020-11-18AF35139ND
2020-11-19AF35326ND
2020-12-15AF37728ND
2020-12-18AF38179ND
2021-03-03AF45191ND
2021-03-03AF45190ND
2021-05-11AF53331ND
2021-05-11AF53332ND
2021-05-20AF54920ND
2021-06-14AF57903ND
2021-07-13AF61761ND
2021-07-13AF61765ND
2021-08-04AF64872ND
2021-09-28AF71439ND
2021-11-29AF77395ND
2021-11-30AF77560ND
2021-12-01AF77697ND
2022-04-13AF93216ND
2022-06-27AG02424ND
2022-10-24AG18126ND
2022-10-25AG18393ND
2022-12-07AG21176ND
2023-02-22AG30035ND
2023-06-27AG46281ND
2023-07-11AG47947ND
2023-07-12AG48276ND
2023-07-12AG48277ND
2023-10-05AG58710ND
2023-10-31AG61781ND
2023-10-31AG61779ND
2023-10-31AG61778ND
2023-10-31AG61777ND
2023-10-31AG61780ND
2023-11-01AG62041ND
2023-11-01AG62040ND
2023-11-01AG62039ND
2023-11-01AG62038ND
2023-11-14AG63605ND
2023-11-15AG63835ND
2023-11-15AG63838ND
2023-11-15AG63837ND
2023-11-15AG63834ND
2023-11-15AG63833ND
2023-11-15AG63832ND
2023-11-15AG63830ND
2023-11-15AG63829ND
2023-11-15AG63828ND
2023-11-15AG63827ND
2023-11-16AG64047ND
2023-12-18AG66893ND
2023-12-18AG66895ND
2023-12-19AG67059ND
2023-12-19AG67060ND