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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Carmichael 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

 

172

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0500 ppb261ND - 1.30 ppb
20150.0545 ppb331ND - 1.80 ppb
2016ND330ND
2017ND230ND
2018ND310ND
2019ND260ND

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
2014-01-035810-901-1137ND
2014-01-035810-902-1120ND
2014-01-035810-903-1058ND
2014-01-035810-904-1039ND
2014-02-205810-022-0953ND
2014-02-205810-023-0932ND
2014-03-065810-006-1017ND
2014-04-025810-901-1258ND
2014-04-025810-902-1243ND
2014-04-025810-903-1224ND
2014-04-025810-904-1208ND
2014-06-055810-006-0856ND
2014-06-055810-009-0916ND
2014-06-115810-016-0918ND
2014-07-025810-901-12531.30 ppb
2014-07-025810-902-1234ND
2014-07-025810-903-1215ND
2014-07-025810-904-1155ND
2014-08-205810-016-0840ND
2014-09-045810-006-0940ND
2014-09-045810-009-0921ND
2014-09-045810-016-1015ND
2014-09-045810-021-0900ND
2014-12-045810-006-0910ND
2014-12-045810-009-0955ND
2014-12-045810-021-1029ND
2015-01-075810-901-1217ND
2015-01-075810-902-1200ND
2015-01-075810-903-1140ND
2015-01-075810-904-1112ND
2015-03-055810-006-0956ND
2015-03-055810-009-0935ND
2015-03-055810-021-1033ND
2015-03-125810-022-0916ND
2015-03-125810-023-0835ND
2015-04-015810-901-1244ND
2015-04-015810-902-1228ND
2015-04-015810-903-1206ND
2015-04-015810-904-1145ND
2015-06-045810-006-1039ND
2015-06-045810-009-1108ND
2015-06-045810-016-0954ND
2015-06-045810-020-0921ND
2015-06-045810-021-1146ND
2015-07-025810-901-11311.80 ppb
2015-07-025810-902-1114ND
2015-07-025810-903-1059ND
2015-07-025810-904-1042ND
2015-09-035810-006-1020ND
2015-09-035810-009-0959ND
2015-09-035810-016-0901ND
2015-09-035810-021-0938ND
2015-10-085810-901-1420ND
2015-10-085810-902-1407ND
2015-10-085810-903-1351ND
2015-10-085810-904-1336ND
2015-12-035810-006-0948ND
2015-12-035810-009-1031ND
2015-12-035810-021-0910ND
2016-01-135810-901-1409ND
2016-01-135810-902-1356ND
2016-01-135810-903-1339ND
2016-01-135810-904-1318ND
2016-03-035810-006-1036ND
2016-03-035810-009-1104ND
2016-03-035810-016-0948ND
2016-03-035810-020-0903ND
2016-03-035810-021-1140ND
2016-03-105810-022-0905ND
2016-03-105810-023-0920ND
2016-04-065810-901-1157ND
2016-04-065810-902-1138ND
2016-04-065810-903-1116ND
2016-04-065810-904-1059ND
2016-06-025810-006-1015ND
2016-06-025810-009-0930ND
2016-06-025810-021-0905ND
2016-07-075810-901-1230ND
2016-07-075810-902-1207ND
2016-07-075810-903-1144ND
2016-07-075810-904-1123ND
2016-09-015810-006-0851ND
2016-09-015810-009-0912ND
2016-09-015810-020-1018ND
2016-09-015810-021-0933ND
2016-10-075810-901-0942ND
2016-10-075810-902-0928ND
2016-10-075810-903-0910ND
2016-10-075810-904-0854ND
2016-12-015810-006-0929ND
2016-12-015810-009-0901ND
2016-12-015810-021-0959ND
2017-03-025810-006-0910ND
2017-03-025810-009-0944ND
2017-03-025810-016-1125ND
2017-03-025810-020-1052ND
2017-03-025810-021-1005ND
2017-03-215810-022-1100ND
2017-03-215810-023-1040ND
2017-06-015810-016-1220ND
2017-06-015810-020-1130ND
2017-06-015810-021-0947ND
2017-06-075810-006-0920ND
2017-06-075810-009-0910ND
2017-07-075810-901-1040ND
2017-07-075810-902-1023ND
2017-07-075810-903-1100ND
2017-07-075810-904-1121ND
2017-09-075810-006-0849ND
2017-09-075810-009-0905ND
2017-09-075810-021-0927ND
2017-10-045810-901-1247ND
2017-10-045810-902-1222ND
2017-10-045810-903-1333ND
2017-10-045810-904-1434ND
2018-01-189590-901-1120ND
2018-01-189590-902-1158ND
2018-01-189590-903-1219ND
2018-01-189590-904-1233ND
2018-03-019590-006-0945ND
2018-03-019590-009-0918ND
2018-03-019590-021-1039ND
2018-04-045810-901-1246ND
2018-04-045810-902-1214ND
2018-04-045810-903-1350ND
2018-04-045810-904-1503ND
2018-04-185810-022-1233ND
2018-06-075810-006-0928ND
2018-06-075810-009-0906ND
2018-06-075810-016-1110ND
2018-06-075810-020-1040ND
2018-06-075810-021-0845ND
2018-07-065810-901-1032ND
2018-07-065810-902-1017ND
2018-07-065810-903-1052ND
2018-07-065810-904-1109ND
2018-09-065810-006-0916ND
2018-09-065810-009-0940ND
2018-09-065810-021-1007ND
2018-10-245810-901-1259ND
2018-10-245810-902-1240ND
2018-10-245810-903-1217ND
2018-10-245810-904-1158ND
2018-12-065810-006-0915ND
2018-12-065810-009-0852ND
2018-12-065810-021-0942ND
2019-01-165810-901-1310ND
2019-01-165810-902-1242ND
2019-01-165810-903-1220ND
2019-01-165810-904-1151ND
2019-03-075810-006-0928ND
2019-03-075810-009-0850ND
2019-03-075810-021-1010ND
2019-03-145810-022-0850ND
2019-04-095810-901-1018ND
2019-04-095810-902-0956ND
2019-04-095810-903-0936ND
2019-04-095810-904-0918ND
2019-06-065810-006-0934ND
2019-06-065810-009-0909ND
2019-06-065810-021-0845ND
2019-07-105810-901-1042ND
2019-07-105810-902-0947ND
2019-07-105810-903-1147ND
2019-07-105810-904-1330ND
2019-09-055810-006-0940ND
2019-09-055810-009-0926ND
2019-09-055810-021-0908ND
2019-10-035810-901-1206ND
2019-10-035810-902-1222ND
2019-10-035810-903-1251ND
2019-10-035810-904-1314ND