Know Your Environment. Protect Your Health.

Bromodichloromethane

Sammamish Plateau Water and Sewer

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

 

166

Samples

0

Samples exceeding legal limit (MCL)

159

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.21 ppb3432ND - 4.78 ppb
20192.15 ppb3432ND - 4.20 ppb
2020N/A00N/A
20212.03 ppb3231ND - 3.90 ppb
20221.94 ppb3432ND - 4.18 ppb
20232.52 ppb32320.909 ppb - 7.31 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane was 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 and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-200.570 ppb
2018-02-200.720 ppb
2018-02-200.900 ppb
2018-02-201.93 ppb
2018-02-202.07 ppb
2018-02-202.12 ppb
2018-02-201.41 ppb
2018-02-200.590 ppb
2018-05-153.72 ppb
2018-05-153.11 ppb
2018-05-154.78 ppb
2018-05-152.83 ppb
2018-05-152.61 ppb
2018-05-152.47 ppb
2018-05-151.39 ppb
2018-05-152.29 ppb
2018-08-143.10 ppb
2018-08-142.73 ppb
2018-08-140.810 ppb
2018-08-141.23 ppb
2018-08-143.30 ppb
2018-08-142.25 ppb
2018-08-141.63 ppb
2018-08-142.74 ppb
2018-08-22ND
2018-08-22ND
2018-11-123.12 ppb
2018-11-123.49 ppb
2018-11-123.89 ppb
2018-11-123.05 ppb
2018-11-130.980 ppb
2018-11-133.70 ppb
2018-11-133.15 ppb
2018-11-132.50 ppb
2019-02-192.45 ppb
2019-02-193.38 ppb
2019-02-190.950 ppb
2019-02-191.10 ppb
2019-02-192.72 ppb
2019-02-191.37 ppb
2019-02-190.970 ppb
2019-02-192.59 ppb
2019-05-212.60 ppb
2019-05-212.35 ppb
2019-05-210.789 ppb
2019-05-210.956 ppb
2019-05-212.73 ppb
2019-05-211.55 ppb
2019-05-213.23 ppb
2019-05-222.78 ppb
2019-08-121.43 ppb
2019-08-121.63 ppb
2019-08-124.20 ppb
2019-08-122.03 ppb
2019-08-133.48 ppb
2019-08-133.68 ppb
2019-08-133.14 ppb
2019-08-132.64 ppb
2019-09-18ND
2019-10-30ND
2019-11-122.90 ppb
2019-11-123.38 ppb
2019-11-120.791 ppb
2019-11-120.970 ppb
2019-11-123.00 ppb
2019-11-122.75 ppb
2019-11-121.26 ppb
2019-11-123.40 ppb
2021-02-1640786482.43 ppb
2021-02-1640786490.909 ppb
2021-02-1640786452.40 ppb
2021-02-164078647ND
2021-02-1640786442.25 ppb
2021-02-1640786421.16 ppb
2021-02-1640786461.02 ppb
2021-02-1640786432.81 ppb
2021-05-1841210572.68 ppb
2021-05-1841210591.06 ppb
2021-05-1841210553.08 ppb
2021-05-1841210611.46 ppb
2021-05-1841210580.911 ppb
2021-05-1841210603.61 ppb
2021-05-1841210563.26 ppb
2021-05-1841210541.59 ppb
2021-08-1041724331.79 ppb
2021-08-1041724380.903 ppb
2021-08-1041724361.61 ppb
2021-08-1041724371.50 ppb
2021-08-1041724352.05 ppb
2021-08-1041724342.87 ppb
2021-08-1041724401.07 ppb
2021-08-1041724393.35 ppb
2021-11-1642062532.25 ppb
2021-11-1642062522.88 ppb
2021-11-1642062551.06 ppb
2021-11-1642062592.68 ppb
2021-11-1642062573.90 ppb
2021-11-1642062561.97 ppb
2021-11-1642062540.974 ppb
2021-11-1642062583.55 ppb
2022-02-1542446860.697 ppb
2022-02-1542446822.14 ppb
2022-02-1542446842.82 ppb
2022-02-1542446872.76 ppb
2022-02-1542446880.955 ppb
2022-02-1542446832.81 ppb
2022-02-1542446850.948 ppb
2022-02-1542446811.17 ppb
2022-05-1742848802.90 ppb
2022-05-1742848851.13 ppb
2022-05-1742848781.86 ppb
2022-05-1742848814.18 ppb
2022-05-1742848821.11 ppb
2022-05-1742848793.71 ppb
2022-05-1742848844.00 ppb
2022-05-1742848831.44 ppb
2022-08-0943306662.97 ppb
2022-08-0943306641.32 ppb
2022-08-0943306601.36 ppb
2022-08-0943306621.54 ppb
2022-08-0943306612.50 ppb
2022-08-0943306630.776 ppb
2022-08-0943306650.632 ppb
2022-08-0943306670.761 ppb
2022-08-174365563ND
2022-08-174365564ND
2022-11-1543744091.17 ppb
2022-11-1543744103.52 ppb
2022-11-1543744073.10 ppb
2022-11-1543744053.10 ppb
2022-11-1543744061.66 ppb
2022-11-1543744042.96 ppb
2022-11-1543744082.26 ppb
2022-11-1543744111.79 ppb
2023-02-1444128771.33 ppb
2023-02-1444128792.98 ppb
2023-02-1444128762.59 ppb
2023-02-1444128743.04 ppb
2023-02-1444128801.14 ppb
2023-02-1444128781.22 ppb
2023-02-1444128752.43 ppb
2023-02-1444128731.93 ppb
2023-05-0944523361.82 ppb
2023-05-0944523411.88 ppb
2023-05-0944523391.60 ppb
2023-05-0944523381.55 ppb
2023-05-0944523372.76 ppb
2023-05-0944523353.03 ppb
2023-05-0944523342.02 ppb
2023-05-0944523404.51 ppb
2023-08-1544992462.18 ppb
2023-08-1544992441.97 ppb
2023-08-1544992402.10 ppb
2023-08-1544992421.99 ppb
2023-08-1544992432.00 ppb
2023-08-1544992470.909 ppb
2023-08-1544992450.956 ppb
2023-08-1544992413.08 ppb
2023-11-1445483361.99 ppb
2023-11-1445483303.51 ppb
2023-11-1445483341.48 ppb
2023-11-1445483312.62 ppb
2023-11-1445483295.23 ppb
2023-11-1445483323.22 ppb
2023-11-1445483357.31 ppb
2023-11-1445483334.17 ppb