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EWG's Tap Water Database — 2021 UPDATE

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Endothall

City of Riverton

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

 

66

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND140ND
2015ND180ND
2016ND40ND
2017N/A00N/A
2018ND300ND
2019N/A00N/A

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
2014-07-14C14070510-002GND
2014-07-14C14070510-001GND
2014-07-14C14070510-014GND
2014-07-14C14070510-013GND
2014-07-14C14070510-012GND
2014-07-14C14070510-011GND
2014-07-14C14070510-010GND
2014-07-14C14070510-009GND
2014-07-14C14070510-008GND
2014-07-14C14070510-007GND
2014-07-14C14070510-006GND
2014-07-14C14070510-005GND
2014-07-14C14070510-004GND
2014-07-14C14070510-003GND
2015-04-14C15040475-001CND
2015-06-25C15061008-002HND
2015-06-25C15061008-015HND
2015-06-25C15061008-014HND
2015-06-25C15061008-013HND
2015-06-25C15061008-012HND
2015-06-25C15061008-011HND
2015-06-25C15061008-010HND
2015-06-25C15061008-009HND
2015-06-25C15061008-008HND
2015-06-25C15061008-007HND
2015-06-25C15061008-006HND
2015-06-25C15061008-005HND
2015-06-25C15061008-004HND
2015-06-25C15061008-003HND
2015-06-25C15061008-001HND
2015-08-11C15080418-001CND
2015-10-26C15100814-001CND
2016-03-07C16030282-001CND
2016-06-13C16060466-016CND
2016-09-07C16090266-001DND
2016-12-12C16120340-001CND
2018-06-04C18060169-022END
2018-06-04C18060169-020AND
2018-06-04C18060169-020BND
2018-06-04C18060169-020CND
2018-06-04C18060169-020DND
2018-06-04C18060169-020END
2018-06-04C18060169-021AND
2018-06-04C18060169-021BND
2018-06-04C18060169-021CND
2018-06-04C18060169-021DND
2018-06-04C18060169-022AND
2018-06-04C18060169-022DND
2018-06-04C18060169-022BND
2018-06-04C18060169-021END
2018-06-04C18060169-022CND
2018-09-04C18090097-003CND
2018-09-04C18090097-009CND
2018-09-04C18090097-013CND
2018-09-04C18090097-008CND
2018-09-04C18090097-010CND
2018-09-04C18090097-002CND
2018-09-04C18090097-005CND
2018-09-04C18090097-001CND
2018-09-04C18090097-012CND
2018-09-04C18090097-006CND
2018-09-04C18090097-004CND
2018-09-04C18090097-011CND
2018-09-04C18090097-007CND
2018-09-10C18090339-002CND
2018-09-10C18090339-001CND