Know Your Environment. Protect Your Health.

Bromoform

City of Port Angeles

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.

 

83

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND180ND
2019ND170ND
2020N/A00N/A
2021ND160ND
20220.106 ppb162ND - 0.900 ppb
2023ND160ND

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
2018-01-31ND
2018-01-31ND
2018-01-31ND
2018-01-31ND
2018-01-31ND
2018-04-11ND
2018-04-11ND
2018-04-11ND
2018-04-11ND
2018-04-11ND
2018-07-13ND
2018-07-13ND
2018-07-13ND
2018-07-13ND
2018-10-24ND
2018-10-24ND
2018-10-24ND
2018-11-08ND
2019-01-17ND
2019-01-17ND
2019-01-17ND
2019-01-17ND
2019-04-10ND
2019-04-10ND
2019-04-10ND
2019-04-10ND
2019-05-16ND
2019-07-16ND
2019-07-16ND
2019-07-16ND
2019-07-16ND
2019-10-23ND
2019-10-23ND
2019-10-23ND
2019-10-23ND
2021-03-094090635ND
2021-03-094090641ND
2021-03-094090639ND
2021-03-094090636ND
2021-06-084168801ND
2021-06-084168799ND
2021-06-084168805ND
2021-06-084168803ND
2021-09-144178749ND
2021-09-144178734ND
2021-09-144178755ND
2021-09-144178741ND
2021-12-134221456ND
2021-12-134221452ND
2021-12-134221450ND
2021-12-134221454ND
2022-02-084246159ND
2022-02-084246153ND
2022-02-0842461570.800 ppb
2022-02-084246155ND
2022-04-124272923ND
2022-04-124272927ND
2022-04-124272919ND
2022-04-124272921ND
2022-07-124316190ND
2022-07-124316192ND
2022-07-124316194ND
2022-07-124316188ND
2022-10-184368423ND
2022-10-184368425ND
2022-10-204368421ND
2022-10-2643703730.900 ppb
2023-01-244407732ND
2023-01-244407736ND
2023-01-244407738ND
2023-01-244407734ND
2023-05-094457485ND
2023-05-094457483ND
2023-05-094457489ND
2023-05-094457487ND
2023-08-024497021ND
2023-08-024497023ND
2023-08-024497027ND
2023-08-024497025ND
2023-11-074555602ND
2023-11-074555606ND
2023-11-074555600ND
2023-11-074555604ND