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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Yucaipa Valley Water District

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

 

154

Samples

0

Samples exceeding legal limit (MCL)

96

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20146.00 ppb2212ND - 37.3 ppb
201517.7 ppb1917ND - 46.9 ppb
20167.23 ppb4120ND - 38.0 ppb
20173.93 ppb2314ND - 28.5 ppb
201810.3 ppb1916ND - 25.8 ppb
20195.21 ppb3017ND - 46.5 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
2014-01-163761-076-1220ND
2014-02-033761-036-1341ND
2014-02-033761-066-1355ND
2014-03-073761-016-1215ND
2014-03-113761-063-14221.30 ppb
2014-03-113761-601-13261.10 ppb
2014-03-113761-603-14542.00 ppb
2014-03-113761-604-13522.20 ppb
2014-04-043761-015-0925ND
2014-06-093761-052-1015ND
2014-09-033761-024-0730ND
2014-09-033761-054-0755ND
2014-09-033761-078-1305ND
2014-09-233761-601-104828.7 ppb
2014-09-233761-602-112227.3 ppb
2014-09-233761-603-115616.4 ppb
2014-09-233761-604-101737.3 ppb
2014-09-263761-100-1200ND
2014-12-093761-601-11486.50 ppb
2014-12-093761-602-12333.10 ppb
2014-12-093761-603-13322.10 ppb
2014-12-093761-604-11294.10 ppb
2015-03-263761-601-11512.50 ppb
2015-03-263761-602-122622.0 ppb
2015-03-263761-603-13332.30 ppb
2015-03-263761-604-11241.30 ppb
2015-04-213761-037-1019ND
2015-06-303761-601-134016.8 ppb
2015-06-303761-602-120017.6 ppb
2015-06-303761-603-105614.8 ppb
2015-06-303761-604-102019.6 ppb
2015-09-173761-601-150043.5 ppb
2015-09-173761-602-130026.6 ppb
2015-09-173761-603-122535.0 ppb
2015-09-173761-604-094746.9 ppb
2015-12-083761-601-101016.6 ppb
2015-12-083761-602-093010.6 ppb
2015-12-083761-603-125330.3 ppb
2015-12-083761-604-103020.2 ppb
2015-12-093761-067-1055ND
2015-12-093761-100-11539.00 ppb
2016-01-193761-601-103918.9 ppb
2016-01-193761-602-11551.90 ppb
2016-01-193761-603-081517.1 ppb
2016-01-193761-604-10153.40 ppb
2016-03-153761-601-14558.90 ppb
2016-03-153761-602-13507.50 ppb
2016-03-153761-603-09352.60 ppb
2016-03-153761-604-11006.60 ppb
2016-05-103761-601-143019.8 ppb
2016-05-103761-602-111616.7 ppb
2016-05-103761-603-093638.0 ppb
2016-05-103761-604-135528.1 ppb
2016-06-203761-015-1040ND
2016-06-203761-016-1020ND
2016-06-203761-066-0950ND
2016-06-213761-006-0949ND
2016-06-213761-013-0931ND
2016-06-213761-037-0746ND
2016-06-213761-076-0851ND
2016-06-223761-013-0945ND
2016-06-223761-017-1105ND
2016-06-223761-022-0928ND
2016-06-223761-025-1250ND
2016-06-223761-033-1220ND
2016-06-223761-052-0840ND
2016-06-223761-078-1043ND
2016-06-233761-003-0940ND
2016-06-233761-044-1245ND
2016-06-233761-051-1225ND
2016-06-233761-054-1350ND
2016-06-233761-062-1258ND
2016-06-233761-067-1046ND
2016-06-293761-036-1145ND
2016-10-043761-602-12159.00 ppb
2016-10-043761-603-082010.7 ppb
2016-10-043761-604-13357.60 ppb
2016-10-053761-601-08453.90 ppb
2016-11-083761-601-143519.0 ppb
2016-11-083761-602-150017.8 ppb
2016-11-083761-603-152531.8 ppb
2016-11-083761-604-141227.1 ppb
2017-01-253761-015-1410ND
2017-03-023761-100-0900ND
2017-03-143761-601-105510.00 ppb
2017-03-143761-602-08352.20 ppb
2017-03-143761-603-092028.5 ppb
2017-03-143761-604-101510.1 ppb
2017-04-043761-601-14002.40 ppb
2017-04-043761-602-11451.10 ppb
2017-04-043761-603-09004.60 ppb
2017-04-043761-604-13153.80 ppb
2017-04-123761-052-1120ND
2017-04-193761-601-1315ND
2017-04-193761-602-1100ND
2017-04-193761-603-10102.50 ppb
2017-04-193761-604-12401.40 ppb
2017-07-133761-601-1310ND
2017-07-133761-602-1200ND
2017-07-133761-603-1100ND
2017-07-133761-604-1235ND
2017-10-243761-601-12116.30 ppb
2017-10-243761-602-10025.50 ppb
2017-10-243761-603-12495.70 ppb
2017-10-243761-604-11486.30 ppb
2018-01-163761-601-092711.5 ppb
2018-01-163761-602-09558.10 ppb
2018-01-163761-603-123814.9 ppb
2018-01-163761-604-101614.4 ppb
2018-04-103761-601-09404.30 ppb
2018-04-103761-602-12003.20 ppb
2018-04-103761-603-14152.10 ppb
2018-04-103761-604-09002.60 ppb
2018-05-083761-100-0855ND
2018-07-033761-601-10159.10 ppb
2018-07-033761-602-11308.00 ppb
2018-07-033761-603-14258.90 ppb
2018-07-033761-604-094011.4 ppb
2018-10-113761-601-112525.8 ppb
2018-10-113761-602-084021.4 ppb
2018-10-113761-603-110025.8 ppb
2018-10-113761-604-102224.3 ppb
2018-10-223761-100-1255ND
2018-11-143761-037-1130ND
2019-02-063761-601-093016.3 ppb
2019-02-063761-602-11355.20 ppb
2019-02-063761-603-153146.5 ppb
2019-02-063761-604-09053.50 ppb
2019-05-143761-601-08356.90 ppb
2019-05-143761-602-12389.40 ppb
2019-05-143761-603-111510.4 ppb
2019-05-143761-604-094911.9 ppb
2019-07-173761-006-1100ND
2019-07-173761-013-1110ND
2019-07-173761-022-1050ND
2019-07-173761-033-1201ND
2019-07-173761-036-1151ND
2019-07-173761-066-1144ND
2019-07-173761-067-1235ND
2019-07-173761-076-1125ND
2019-07-183761-016-0845ND
2019-07-183761-017-0915ND
2019-07-183761-025-10452.80 ppb
2019-07-183761-054-1115ND
2019-07-183761-078-1000ND
2019-08-133761-601-11003.30 ppb
2019-08-133761-602-08153.30 ppb
2019-08-133761-603-11303.70 ppb
2019-08-133761-604-07452.90 ppb
2019-10-163761-100-1225ND
2019-11-053761-601-10056.30 ppb
2019-11-053761-602-11058.30 ppb
2019-11-053761-603-08456.60 ppb
2019-11-053761-604-09409.00 ppb