Know Your Environment. Protect Your Health.

Bromoform

City of Shallowater

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

19

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
202126.4 ppb4418.4 ppb - 33.0 ppb
20224.39 ppb64ND - 15.0 ppb
20232.02 ppb32ND - 4.22 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform is based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer, harm to reproduction and child development, and change to fetal growth and development .

ppb = parts per billion

All test results

Date Lab ID Result
2018-07-11Q1827381004ND
2018-07-11Q1827381001ND
2019-07-10Q1943529002ND
2019-07-10Q1943529005ND
2020-07-29Q2029645003ND
2020-07-29Q2029645004ND
2021-07-06Q211757300128.3 ppb
2021-08-11Q212148000618.4 ppb
2021-10-20Q212960500626.0 ppb
2021-10-20Q212960500433.0 ppb
2022-03-15Q220876600415.0 ppb
2022-06-16Q2216858002ND
2022-06-16Q22168580044.40 ppb
2022-06-16Q22168580123.59 ppb
2022-08-16Q2224095001ND
2022-10-25Q22321340013.32 ppb
2023-04-25Q23155280084.22 ppb
2023-04-25Q23155280101.85 ppb
2023-08-09Q2332882001ND