Know Your Environment. Protect Your Health.

Dinoseb

CTWC - Unionville System

NOTE: CTWC - Unionville System purchases water from Metropolitan District Commission which is required to test for dinoseb. Sample information shown below was taken by Metropolitan District Commission.

Dinoseb is a herbicide that causes birth defects and reproductive difficulties. It has been banned in the U.S. since 1986.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND70ND
2019ND120ND
2020ND30ND
2021ND30ND
2022ND60ND
2023ND30ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 7 ppb

The legal limit for dinoseb, established in 1992, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.

ppb = parts per billion

All test results

NOTE: CTWC - Unionville System purchases water from Metropolitan District Commission which is required to test for dinoseb. Sample information shown below was taken by Metropolitan District Commission.

Date Lab ID Result
2018-06-27CA79476ND
2018-06-27CA79477ND
2018-06-27CA79475ND
2018-09-25CB38504ND
2018-09-25CB38505RND
2018-09-25CB38869ND
2018-09-25CB38505ND
2020-12-08SOC 200600638ND
2020-12-08SOC 200600609ND
2020-12-09SOC 200600592ND
2021-11-23S300107511 300107512ND
2021-11-23S300107593 300107595ND
2021-11-29S300109627 300109628ND
2022-12-15S300287039 300287043ND
2022-12-15S300287062 300287064ND
2022-12-15S300287090 300287092ND
2023-12-05S300456329 300456331ND
2023-12-06S300456308 300456310ND
2023-12-06S300456298 300456300ND