Know Your Environment. Protect Your Health.

Ethylene dibromide

Patterson Water System

Ethylene dibromide, a likely human carcinogen, was used until 1984 as a gasoline additive and a pesticide. It affects the hormone, reproductive and nervous systems; causes testicular atrophy; and damages the heart, liver and kidneys.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND80ND
2020ND40ND
2021ND20ND
2022ND20ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.01 ppb

The EWG Health Guideline of 0.01 ppb for ethylene dibromide 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 cancer.

EPA Maximum Contaminant
Level (MCL): 0.05 ppb

The legal limit for ethylene dibromide, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to ethylene dibromide exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-2535370415002ND
2018-01-2535370415002ND
2018-07-0935403035001ND
2018-07-0935403035001ND
2019-01-1535442674001ND
2019-01-1535442674001ND
2019-07-0935480730001ND
2019-07-0935480730001ND
2019-07-2435484856001ND
2019-07-2435484856001ND
2019-10-2235507344001ND
2019-10-2235507344001ND
2020-01-0735522572001ND
2020-01-0735522572002ND
2020-04-1435544199001ND
2020-09-2835581278001ND
2021-03-2535621782001ND
2021-11-3035681445001ND
2022-01-0635688920001ND
2022-07-2835735506001ND
2023-01-3035776512001ND
2023-10-0935833383001ND