Know Your Environment. Protect Your Health.

Bromoform

East Williston

NOTE: East Williston purchases water from Williston Park which is required to test for bromoform. Sample information shown below was taken by Williston Park.

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.

 

94

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND120ND
20190.126 ppb191ND - 2.40 ppb
2020ND10ND
2021ND10ND
2022ND10ND
2023ND10ND

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

NOTE: East Williston purchases water from Williston Park which is required to test for bromoform. Sample information shown below was taken by Williston Park.

Date Lab ID Result
2018-01-087039834001ND
2018-01-227040983002ND
2018-03-057044451002ND
2018-04-097047710002ND
2018-04-167048547001ND
2018-06-187055279002ND
2018-07-027056884001ND
2018-07-167058310002ND
2018-08-207062108002ND
2018-11-057070054003ND
2018-11-267071947002ND
2018-12-037072663002ND
2019-01-077075751001ND
2019-01-147076501002ND
2019-01-287077723002ND
2019-04-087084957001ND
2019-04-297087521001ND
2019-05-067088280001ND
2019-05-137089261001ND
2019-05-207090241002ND
2019-05-207090241003ND
2019-06-107092863001ND
2019-07-087096646001ND
2019-07-1270973470012.40 ppb
2019-07-157097523001ND
2019-07-297099247002ND
2019-08-057099935001ND
2019-08-2070102024002ND
2019-11-1870112275002ND
2019-11-2570113136002ND
2019-12-0270113611001ND
2020-01-2370119396001ND
2020-02-0370120331002ND
2020-02-1970122387002ND
2020-04-0670127126003ND
2020-05-1170130667002ND
2020-06-0170132785002ND
2020-07-2070138871001ND
2020-08-1070141136002ND
2020-08-2470143166002ND
2020-09-1470145729001ND
2020-09-1470145729001ND
2020-10-2670150983001ND
2020-11-1670153619002ND
2020-11-2370154482002ND
2021-01-1170159035001ND
2021-01-2070160014002ND
2021-01-2270160437002ND
2021-04-0570167885001ND
2021-04-1970169736003ND
2021-05-2470174200003ND
2021-07-0670179436001ND
2021-07-1270180126002ND
2021-08-1670184236012ND
2021-09-1370187288002ND
2021-09-1370187288001ND
2021-10-0470189750001ND
2021-10-1270190700003ND
2021-10-1870191484001ND
2022-01-0370199604001ND
2022-01-1870201143003ND
2022-03-2170208147003-POCSND
2022-04-0470209538001-POCSND
2022-04-1870211435003ND
2022-06-1770218680002ND
2022-06-2970220244003ND
2022-07-0570220883007ND
2022-07-0570220883002ND
2022-07-1170221659005ND
2022-07-1870222527001ND
2022-07-1870222527002ND
2022-07-2570223316001ND
2022-08-0170224210001ND
2022-08-0870224955001ND
2022-08-2270226784001ND
2022-09-1370229061001ND
2022-10-0370231870001ND
2022-10-1170232841005ND
2022-10-1770233529002ND
2023-01-0370241966001ND
2023-01-0370241959001ND
2023-01-1770243478002ND
2023-04-0370251413001ND
2023-04-1770253123001ND
2023-04-2470253911001ND
2023-05-0870255567001ND
2023-07-0370261926001ND
2023-07-1070262630004ND
2023-07-1770263592003ND
2023-08-1470266825001ND
2023-09-1970269992002ND
2023-10-0270272514001ND
2023-10-1070273575002ND
2023-10-1670274213002ND