Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromoform

Waipahu-Ewa-Waianae

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.

MORE ABOUT THIS CONTAMINANT

 

134

Samples

0

Samples exceeding legal limit (MCL)

86

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
20150.687 ppb2516ND - 2.70 ppb
20160.991 ppb2114ND - 3.00 ppb
20170.656 ppb4825ND - 2.40 ppb
20181.27 ppb2016ND - 2.50 ppb
20191.09 ppb2015ND - 2.80 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2015-01-062015010803901.80 ppb
2015-01-062015010803910.710 ppb
2015-01-06201501080399ND
2015-01-15201501160297ND
2015-01-152015011602980.780 ppb
2015-01-222015012304040.940 ppb
2015-01-26201501270096ND
2015-03-31201504020267ND
2015-04-012015040302411.70 ppb
2015-04-012015040302420.900 ppb
2015-04-01201504030243ND
2015-04-132015041505860.930 ppb
2015-05-11201505130557ND
2015-07-072015070801640.530 ppb
2015-07-132015071505641.50 ppb
2015-07-132015071505650.560 ppb
2015-07-202015072204262.70 ppb
2015-08-31201509020193ND
2015-08-31201509020194ND
2015-09-292015100102240.540 ppb
2015-10-052015100701950.590 ppb
2015-10-062015091601141.20 ppb
2015-10-062015091601150.820 ppb
2015-10-202015102303010.970 ppb
2015-12-28201512180364ND
2016-01-092.50 ppb
2016-01-120.510 ppb
2016-01-12ND
2016-01-141.50 ppb
2016-01-21ND
2016-01-251.80 ppb
2016-01-26ND
2016-04-060.860 ppb
2016-04-061.20 ppb
2016-04-121.40 ppb
2016-04-19ND
2016-07-050.970 ppb
2016-07-052.00 ppb
2016-07-062.20 ppb
2016-07-061.20 ppb
2016-10-060.680 ppb
2016-10-061.000 ppb
2016-10-06ND
2016-10-123.00 ppb
2016-11-14ND
2016-12-14ND
2017-01-061.40 ppb
2017-01-09ND
2017-01-10ND
2017-01-100.580 ppb
2017-01-100.970 ppb
2017-01-10ND
2017-01-11ND
2017-01-170.670 ppb
2017-01-241.40 ppb
2017-01-241.60 ppb
2017-01-25ND
2017-01-26ND
2017-02-02ND
2017-02-130.550 ppb
2017-02-131.40 ppb
2017-02-16ND
2017-02-221.50 ppb
2017-02-22ND
2017-02-23ND
2017-02-27ND
2017-03-13ND
2017-04-03ND
2017-04-050.560 ppb
2017-04-101.30 ppb
2017-04-251.60 ppb
2017-06-261.40 ppb
2017-07-030.780 ppb
2017-07-032.40 ppb
2017-07-031.30 ppb
2017-07-201.000 ppb
2017-10-030.840 ppb
2017-10-032.30 ppb
2017-10-050.770 ppb
2017-10-09ND
2017-10-11ND
2017-10-13ND
2017-10-161.60 ppb
2017-10-16ND
2017-10-161.80 ppb
2017-10-17ND
2017-10-18ND
2017-10-180.650 ppb
2017-10-231.10 ppb
2017-10-24ND
2017-10-24ND
2017-10-24ND
2017-10-25ND
2017-10-252.00 ppb
2018-01-102018010300871.000 ppb
2018-01-102018010300821.50 ppb
2018-01-122018010300812.00 ppb
2018-01-182018011906201.60 ppb
2018-01-22201801230704ND
2018-01-24201712280233ND
2018-01-25201712280229ND
2018-04-022018040409730.900 ppb
2018-04-022018040409712.50 ppb
2018-04-022018040409701.90 ppb
2018-04-162018041709231.70 ppb
2018-07-062018071110631.10 ppb
2018-07-062018071110621.40 ppb
2018-07-092018071113592.00 ppb
2018-08-132018081402731.60 ppb
2018-08-21201808130257ND
2018-10-032018100505612.30 ppb
2018-10-052018100906400.870 ppb
2018-10-052018100906392.20 ppb
2018-10-172018101804940.910 ppb
2019-01-112019011501541.000 ppb
2019-01-112019011501531.10 ppb
2019-01-172019011801190.750 ppb
2019-01-24201901250061ND
2019-01-242019012500570.990 ppb
2019-01-28201901290128ND
2019-01-28201901290129ND
2019-04-022019040401551.000 ppb
2019-04-022019040401542.20 ppb
2019-04-032019040502041.10 ppb
2019-04-042019040502372.10 ppb
2019-07-082019071004680.880 ppb
2019-07-082019071004670.810 ppb
2019-07-092019071104002.60 ppb
2019-07-092019071004501.000 ppb
2019-07-30201908010178ND
2019-10-04201910080585ND
2019-10-072019100905581.10 ppb
2019-10-072019100905572.80 ppb
2019-10-102019091706402.40 ppb