Know Your Environment. Protect Your Health.

Dalapon

City of Santa Rosa

The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.

 

33

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND50ND
2020ND40ND
2021ND50ND
2022ND50ND
2023ND90ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 200 ppb

The legal limit for dalapon, established in 1992, was based on a toxicity study in laboratory animals published in 1960.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-31AE11558ND
2018-03-19AE18926ND
2018-04-27AE24377ND
2018-07-27AE34918ND
2018-10-12AE43446ND
2019-02-28AE56557ND
2019-03-25AE59801ND
2019-05-09AE65691ND
2019-07-19AE75316ND
2019-10-21AE87059ND
2020-03-19AF03782ND
2020-03-19AF03861ND
2020-07-24AF20666ND
2020-10-06AF29670ND
2021-03-11AF46705ND
2021-05-10AF53067ND
2021-05-10AF52971ND
2021-09-22AF70802ND
2021-12-08AF78329ND
2022-01-31AF82549ND
2022-01-31AF82654ND
2022-04-13AF93355ND
2022-09-28AG15248ND
2022-12-05AG20686ND
2023-03-10AG32654ND
2023-03-10AG32659ND
2023-05-19AG41484ND
2023-05-19AG41485ND
2023-07-19AG49269ND
2023-07-19AG49273ND
2023-07-19AG49427ND
2023-10-18AG60250ND
2023-10-18AG60251ND