Know Your Environment. Protect Your Health.

Bromoform

Purcellville, Town of

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.

 

112

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND160ND
2019ND180ND
2020ND140ND
20210.0957 ppb233ND - 0.900 ppb
20220.0273 ppb221ND - 0.600 ppb
2023ND190ND

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
2018-02-15E180100327ND
2018-02-15E180100335ND
2018-02-27E180100342ND
2018-05-14E180303862ND
2018-05-14E180303864ND
2018-05-23E180303850ND
2018-05-30E180303851ND
2018-08-15E180601967ND
2018-08-15E180601969ND
2018-08-21E180601975ND
2018-08-28E180601971ND
2018-08-28E180601981ND
2018-11-14E180901398ND
2018-11-14E180901400ND
2018-11-19E180901410ND
2018-12-11E180901404ND
2019-02-13E181104012ND
2019-02-13E181104017ND
2019-02-19E181104004ND
2019-02-19E181104015ND
2019-02-19E181104016ND
2019-03-21E190302948ND
2019-03-21E190302957ND
2019-05-14E190304841ND
2019-05-14E190304855ND
2019-05-29E190304839ND
2019-05-29E190304846ND
2019-08-13E190609942ND
2019-08-13E190609955ND
2019-09-10E190900749ND
2019-11-13E191000259ND
2019-11-13E191000261ND
2019-11-25E191000255ND
2019-12-04E191000266ND
2020-02-12E191203664ND
2020-02-12E191203666ND
2020-02-25E191203663ND
2020-05-19E200302295ND
2020-05-19E200302311ND
2020-05-20E200302298ND
2020-06-16E200600508ND
2020-08-11E200601274ND
2020-08-11E200601275ND
2020-08-11E200601283ND
2020-10-19E200906213ND
2020-11-16E200906205ND
2020-11-16E200906206ND
2020-11-16E200906214ND
2021-02-16E210100112ND
2021-02-16E210100122ND
2021-03-15E210100113ND
2021-05-12E210400629ND
2021-05-12E210400636ND
2021-05-12E210400654ND
2021-05-12E2104006550.600 ppb
2021-05-17E210400628ND
2021-05-24E210400643ND
2021-08-11E210701948ND
2021-08-11E210701949ND
2021-08-11E2107031190.900 ppb
2021-08-11E210703120ND
2021-08-23E210701941ND
2021-08-23E210701945ND
2021-08-23E210705571ND
2021-11-15E210901974ND
2021-11-15E210901975ND
2021-11-15E210901976ND
2021-11-15E2109019770.700 ppb
2021-11-30E210901978ND
2021-11-30E210901979ND
2021-11-30E211100054ND
2022-02-16E211201660ND
2022-02-16E211201661ND
2022-02-16E211201662ND
2022-02-16E211201663ND
2022-02-23E211201664ND
2022-02-23E211201665ND
2022-02-23E211201666ND
2022-02-23E211206105ND
2022-05-16E2203036900.600 ppb
2022-05-16E220303691ND
2022-05-16E220303692ND
2022-05-16E220303693ND
2022-05-23E220303694ND
2022-05-23E220303695ND
2022-06-29E220607528ND
2022-08-17E220802461ND
2022-08-22E220607516ND
2022-09-01E220804281ND
2022-11-14E220904384ND
2022-11-14E220904385ND
2022-11-14E220904386ND
2022-11-14E220904387ND
2023-02-13E221203951ND
2023-02-13E221203952ND
2023-02-13E221203953ND
2023-05-01E230305398ND
2023-05-01E230305409ND
2023-05-01E230305414ND
2023-05-16E230304645ND
2023-05-16E230304646ND
2023-05-17E230305386ND
2023-05-17E230305403ND
2023-05-17E230305420ND
2023-05-17E230305423ND
2023-08-15E230603379ND
2023-08-15E230603380ND
2023-08-28E230603381ND
2023-11-01E230904714ND
2023-11-20E230903617ND
2023-11-20E230903618ND
2023-12-07E230903619ND