Know Your Environment. Protect Your Health.

Bromoform

Gretna Waterworks

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.

 

128

Samples

0

Samples exceeding legal limit (MCL)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND320ND
2019ND320ND
20200.0475 ppb162ND - 0.390 ppb
2021ND160ND
20220.133 ppb164ND - 0.580 ppb
20230.557 ppb168ND - 1.80 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
2018-02-0135371671001ND
2018-02-0135371671002ND
2018-02-0135371671003ND
2018-02-0135371671004ND
2018-02-0135371671001ND
2018-02-0135371671002ND
2018-02-0135371671003ND
2018-02-0135371671004ND
2018-05-1035391806001ND
2018-05-1035391806002ND
2018-05-1035391806003ND
2018-05-1035391806004ND
2018-05-1035391806001ND
2018-05-1035391806002ND
2018-05-1035391806003ND
2018-05-1035391806004ND
2018-08-0635409217001ND
2018-08-0635409217002ND
2018-08-0635409217003ND
2018-08-0635409217004ND
2018-08-0635409217001ND
2018-08-0635409217002ND
2018-08-0635409217003ND
2018-08-0635409217004ND
2018-11-0835430061001ND
2018-11-0835430061002ND
2018-11-0835430061003ND
2018-11-0835430061004ND
2018-11-0835430061001ND
2018-11-0835430061002ND
2018-11-0835430061003ND
2018-11-0835430061004ND
2019-02-1235447890001ND
2019-02-1235447890002ND
2019-02-1235447890003ND
2019-02-1235447890004ND
2019-02-1235447890001ND
2019-02-1235447890002ND
2019-02-1235447890003ND
2019-02-1235447890004ND
2019-05-0835467870001ND
2019-05-0835467870002ND
2019-05-0835467870003ND
2019-05-0835467870004ND
2019-05-0835467870001ND
2019-05-0835467870002ND
2019-05-0835467870003ND
2019-05-0835467870004ND
2019-08-0935489005001ND
2019-08-0935489005002ND
2019-08-0935489005003ND
2019-08-0935489005004ND
2019-08-0935489005001ND
2019-08-0935489005002ND
2019-08-0935489005003ND
2019-08-0935489005004ND
2019-11-1335512510001ND
2019-11-1335512510002ND
2019-11-1335512510003ND
2019-11-1335512510004ND
2019-11-1335512510001ND
2019-11-1335512510002ND
2019-11-1335512510003ND
2019-11-1335512510004ND
2020-02-1235531008001ND
2020-02-1235531008002ND
2020-02-1235531008003ND
2020-02-1235531008004ND
2020-05-1335550106001ND
2020-05-1335550106002ND
2020-05-1335550106003ND
2020-05-1335550106004ND
2020-08-03355675670010.390 ppb
2020-08-0335567567002ND
2020-08-0335567567003ND
2020-08-03355675670040.370 ppb
2020-11-2335594565001ND
2020-11-2335594565002ND
2020-11-2335594565003ND
2020-11-2335594565004ND
2021-02-0135609050001ND
2021-02-0135609050002ND
2021-02-0135609050003ND
2021-02-0135609050004ND
2021-05-1235633205001ND
2021-05-1235633205002ND
2021-05-1235633205003ND
2021-05-1235633205004ND
2021-08-1135655164001ND
2021-08-1135655164002ND
2021-08-1135655164003ND
2021-08-1135655164004ND
2021-11-0335676382001ND
2021-11-0335676382002ND
2021-11-0335676382003ND
2021-11-0335676382004ND
2022-02-0235694454001ND
2022-02-0235694454002ND
2022-02-0235694454003ND
2022-02-0235694454004ND
2022-05-0435717565001ND
2022-05-0435717565002ND
2022-05-0435717565003ND
2022-05-0435717565004ND
2022-08-1735740693001ND
2022-08-1735740693002ND
2022-08-1735740693003ND
2022-08-1735740693004ND
2022-11-16357608030010.550 ppb
2022-11-16357608030020.580 ppb
2022-11-16357608030030.500 ppb
2022-11-16357608030040.500 ppb
2023-02-0735777762001ND
2023-02-0735777762002ND
2023-02-0735777762003ND
2023-02-0735777762004ND
2023-05-0335797116001ND
2023-05-0335797116002ND
2023-05-0335797116003ND
2023-05-0335797116004ND
2023-08-09358195680010.530 ppb
2023-08-09358195680020.530 ppb
2023-08-09358195680030.480 ppb
2023-08-09358195680040.670 ppb
2023-11-01358390010011.70 ppb
2023-11-01358390010021.80 ppb
2023-11-01358390010031.80 ppb
2023-11-01358390010041.40 ppb