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EWG's Tap Water Database — 2021 UPDATE

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Endothall

Goleta Water District

Endothall is a herbicide used to kill aquatic plants and algae. It's also used on potato and cotton crops.

 

49

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND90ND
2016ND100ND
2017ND70ND
2018ND90ND
2019ND110ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 94 ppb

The EWG Health Guideline of 94 ppb for endothall 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 harm to the stomach and intestines.

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for endothall, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1960s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-12-049590-013-1133ND
2014-12-099590-034-1200ND
2014-12-299590-035-1212ND
2015-02-049590-033-1158ND
2015-03-269590-031-0955ND
2015-04-159590-026-1128ND
2015-08-139590-013-1250ND
2015-10-019590-034-1205ND
2015-10-289590-032-1020ND
2015-11-189590-018-1221ND
2015-11-239590-035-1100ND
2015-12-029590-001-1204ND
2016-03-309590-018-0915ND
2016-05-189590-013-1058ND
2016-06-149590-026-1040ND
2016-07-199590-038-1100ND
2016-08-029590-042-1030ND
2016-08-109590-041-1100ND
2016-08-169590-040-1030ND
2016-10-059590-033-1045ND
2016-10-109590-045-1110ND
2016-11-169590-033-1045ND
2017-04-129590-013-1200ND
2017-05-049590-033-1100ND
2017-08-039590-042-1100ND
2017-11-079590-035-1030ND
2017-11-209590-041-1000ND
2017-11-279590-058-1100ND
2017-11-289590-059-1030ND
2018-03-069590-032-1045ND
2018-03-079590-034-1030ND
2018-03-159590-031-1030ND
2018-03-209590-035-1030ND
2018-03-269590-001-1030ND
2018-04-119590-018-1030ND
2018-05-149590-033-1045ND
2018-05-159590-026-1045ND
2018-08-159590-013-1100ND
2019-04-249590-042-1100ND
2019-04-259588-041-1030ND
2019-05-029588-038-1030ND
2019-05-099588-040-1030ND
2019-05-149588-058-1030ND
2019-05-219588-058-1030ND
2019-08-279588-018-1020ND
2019-09-179588-033-1015ND
2019-10-109588-013-1125ND
2019-11-139588-026-1123ND
2019-11-149588-059-1015ND