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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

California Water Service Company - Dominguez

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.

 

421

Samples

0

Samples exceeding legal limit (MCL)

313

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20147.66 ppb7755ND - 32.1 ppb
20157.17 ppb6448ND - 19.1 ppb
20168.38 ppb6251ND - 32.0 ppb
20178.09 ppb7558ND - 27.9 ppb
20185.79 ppb6952ND - 23.9 ppb
20195.31 ppb7449ND - 23.0 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2014-01-085701-805-11189.65 ppb
2014-01-295701-023-1000ND
2014-02-055701-800-11138.84 ppb
2014-02-055701-801-103518.7 ppb
2014-02-055701-802-11392.73 ppb
2014-02-055701-803-13028.64 ppb
2014-02-055701-804-11158.35 ppb
2014-02-055701-805-11438.27 ppb
2014-02-055701-806-10508.66 ppb
2014-02-055701-807-10228.32 ppb
2014-02-125701-805-11468.88 ppb
2014-02-195701-018-1043ND
2014-03-125701-048-09357.20 ppb
2014-03-125701-055-09503.02 ppb
2014-03-125701-805-11209.83 ppb
2014-03-195701-004-1400ND
2014-03-195701-019-1415ND
2014-04-095701-805-112610.3 ppb
2014-05-075701-800-130710.2 ppb
2014-05-075701-801-133618.3 ppb
2014-05-075701-802-12496.38 ppb
2014-05-075701-803-114610.2 ppb
2014-05-075701-804-11019.91 ppb
2014-05-075701-805-111610.1 ppb
2014-05-075701-806-103810.3 ppb
2014-05-075701-807-10229.88 ppb
2014-05-145701-805-11174.87 ppb
2014-05-229590-018-1002ND
2014-05-305701-058-160032.1 ppb
2014-06-115701-048-10137.84 ppb
2014-06-115701-055-09252.14 ppb
2014-06-115701-805-114912.0 ppb
2014-06-255701-019-0945ND
2014-06-255701-024-1100ND
2014-07-095701-004-0930ND
2014-07-165701-805-105016.8 ppb
2014-07-235701-050-1345ND
2014-08-065701-800-132412.3 ppb
2014-08-065701-801-141023.3 ppb
2014-08-065701-802-13018.38 ppb
2014-08-065701-803-113712.4 ppb
2014-08-065701-804-110810.1 ppb
2014-08-065701-805-113411.3 ppb
2014-08-065701-806-104311.9 ppb
2014-08-065701-807-101810.9 ppb
2014-08-135810-805-114214.0 ppb
2014-08-195701-057-142519.1 ppb
2014-08-275701-018-1345ND
2014-08-275701-036-1038ND
2014-08-275701-057-104515.6 ppb
2014-09-035701-057-135514.6 ppb
2014-09-105701-048-14107.82 ppb
2014-09-105701-055-143515.5 ppb
2014-09-105701-057-143115.9 ppb
2014-09-175701-019-1441ND
2014-09-175701-024-1329ND
2014-09-245701-004-1150ND
2014-09-245701-016-1440ND
2014-10-085701-004-1115ND
2014-10-095701-016-1404ND
2014-10-159590-805-10549.00 ppb
2014-11-055701-800-12508.97 ppb
2014-11-055701-801-132517.5 ppb
2014-11-055701-802-11583.95 ppb
2014-11-055701-803-11309.31 ppb
2014-11-055701-804-11007.88 ppb
2014-11-055701-805-11239.39 ppb
2014-11-055701-806-10488.53 ppb
2014-11-055701-807-15079.56 ppb
2014-11-065701-022-1340ND
2014-11-195701-805-11208.80 ppb
2014-11-245701-018-1032ND
2014-12-105701-048-11109.25 ppb
2014-12-105701-055-15302.22 ppb
2014-12-179590-004-1450ND
2014-12-175701-019-0940ND
2014-12-175701-024-1030ND
2015-01-075701-805-11529.44 ppb
2015-01-215701-023-1340ND
2015-02-045701-800-07309.51 ppb
2015-02-045701-801-073014.6 ppb
2015-02-045701-802-07313.02 ppb
2015-02-045701-803-07318.87 ppb
2015-02-045701-804-07317.10 ppb
2015-02-045701-805-07317.43 ppb
2015-02-045701-805-11498.35 ppb
2015-02-045701-806-07319.15 ppb
2015-02-045701-807-073110.4 ppb
2015-02-185701-018-1345ND
2015-03-115701-055-08062.41 ppb
2015-03-185701-024-1050ND
2015-03-185701-805-120010.1 ppb
2015-03-255701-004-14561.80 ppb
2015-03-255701-019-15302.64 ppb
2015-04-085701-805-114012.6 ppb
2015-05-065701-800-082912.0 ppb
2015-05-065701-801-082919.1 ppb
2015-05-065701-802-08296.33 ppb
2015-05-065701-803-082911.5 ppb
2015-05-065701-804-082911.9 ppb
2015-05-065701-805-082910.8 ppb
2015-05-065701-806-082910.5 ppb
2015-05-065701-807-082911.7 ppb
2015-06-105701-805-114111.0 ppb
2015-06-175701-004-1024ND
2015-06-175701-024-0930ND
2015-06-175701-055-08392.65 ppb
2015-07-155701-019-1110ND
2015-07-155701-805-130413.4 ppb
2015-07-225701-050-1323ND
2015-08-055701-800-081111.9 ppb
2015-08-055701-801-081111.2 ppb
2015-08-055701-802-08115.17 ppb
2015-08-055701-803-081111.6 ppb
2015-08-055701-804-081112.1 ppb
2015-08-055701-805-081111.5 ppb
2015-08-055701-806-081111.4 ppb
2015-08-055701-807-081111.8 ppb
2015-08-125701-805-132011.1 ppb
2015-08-195701-036-1409ND
2015-09-095701-805-103513.4 ppb
2015-09-235701-004-1438ND
2015-09-235701-019-1015ND
2015-09-235701-024-1330ND
2015-09-235701-055-09452.44 ppb
2015-10-055701-024-1020ND
2015-10-145701-805-11109.36 ppb
2015-11-045701-800-084211.5 ppb
2015-11-045701-801-084215.5 ppb
2015-11-045701-802-08426.55 ppb
2015-11-045701-803-084210.1 ppb
2015-11-045701-804-09059.89 ppb
2015-11-045701-805-09059.54 ppb
2015-11-045701-805-11308.87 ppb
2015-11-045701-806-09058.91 ppb
2015-11-045701-807-09057.35 ppb
2015-12-095701-805-11229.20 ppb
2015-12-175701-004-1108ND
2015-12-175701-024-0947ND
2015-12-239590-022-1040ND
2015-12-299590-016-1150ND
2016-01-135701-805-11128.70 ppb
2016-01-205701-023-1200ND
2016-02-035701-800-08428.89 ppb
2016-02-035701-801-084214.6 ppb
2016-02-035701-802-08423.85 ppb
2016-02-035701-803-08428.36 ppb
2016-02-035701-804-08429.20 ppb
2016-02-035701-805-08428.43 ppb
2016-02-035701-805-11329.27 ppb
2016-02-035701-806-08427.89 ppb
2016-02-035701-807-08421.08 ppb
2016-03-095701-805-11026.00 ppb
2016-03-169590-004-1040ND
2016-03-165701-024-1340ND
2016-03-239590-018-13404.50 ppb
2016-04-065701-805-11179.91 ppb
2016-05-045701-800-07358.05 ppb
2016-05-045701-801-073518.5 ppb
2016-05-045701-802-07358.90 ppb
2016-05-045701-803-07358.69 ppb
2016-05-045701-804-07359.28 ppb
2016-05-045701-805-07359.16 ppb
2016-05-045701-806-07358.69 ppb
2016-05-045701-807-07359.59 ppb
2016-05-115701-805-123011.1 ppb
2016-06-155701-018-1200ND
2016-06-155701-805-112411.1 ppb
2016-06-225701-004-1330ND
2016-06-225701-024-1130ND
2016-07-135701-805-115313.4 ppb
2016-07-205701-050-1310ND
2016-07-239590-057-100031.0 ppb
2016-07-279590-057-110532.0 ppb
2016-08-035701-800-075314.0 ppb
2016-08-035701-801-075312.6 ppb
2016-08-035701-802-07538.52 ppb
2016-08-035701-803-075311.2 ppb
2016-08-035701-804-075315.1 ppb
2016-08-035701-805-075314.7 ppb
2016-08-035701-805-113017.9 ppb
2016-08-035701-806-075310.2 ppb
2016-08-035701-807-075310.2 ppb
2016-09-145701-805-112412.4 ppb
2016-09-215701-004-1015ND
2016-09-215701-018-1100ND
2016-09-215701-048-08174.72 ppb
2016-10-125701-805-11279.24 ppb
2016-11-095701-800-08079.50 ppb
2016-11-095701-801-08078.33 ppb
2016-11-095701-802-08077.23 ppb
2016-11-095701-803-08078.16 ppb
2016-11-095701-804-072310.1 ppb
2016-11-095701-805-07239.69 ppb
2016-11-095701-806-07239.32 ppb
2016-11-095701-807-07239.32 ppb
2016-11-165701-018-1300ND
2016-11-165701-805-113510.6 ppb
2016-12-145701-004-13050.500 ppb
2016-12-145810-805-11049.70 ppb
2016-12-219590-016-12551.20 ppb
2016-12-215701-048-06544.92 ppb
2016-12-289590-019-0930ND
2017-01-115701-805-11338.53 ppb
2017-01-255701-023-1145ND
2017-02-085810-800-133327.0 ppb
2017-02-085810-801-140917.0 ppb
2017-02-085810-802-13219.50 ppb
2017-02-085810-803-124522.0 ppb
2017-02-085810-804-112417.0 ppb
2017-02-085810-805-124517.0 ppb
2017-02-085810-806-115927.0 ppb
2017-02-085810-807-112927.0 ppb
2017-02-155701-805-122111.2 ppb
2017-02-225701-018-1310ND
2017-03-089590-019-1430ND
2017-03-155701-004-13300.620 ppb
2017-03-155701-019-1445ND
2017-03-155701-048-08494.99 ppb
2017-03-155701-055-08501.50 ppb
2017-03-155701-805-11378.20 ppb
2017-04-055701-805-105014.9 ppb
2017-05-035701-800-115615.2 ppb
2017-05-035701-801-131418.8 ppb
2017-05-035701-802-114410.1 ppb
2017-05-035701-803-111413.7 ppb
2017-05-035701-804-112614.7 ppb
2017-05-035701-805-113913.6 ppb
2017-05-035701-806-110615.6 ppb
2017-05-035701-807-103715.5 ppb
2017-05-105701-805-124414.2 ppb
2017-05-235701-058-120027.9 ppb
2017-05-245701-018-1345ND
2017-06-075701-805-115911.2 ppb
2017-06-145701-048-08115.38 ppb
2017-06-145701-055-08112.21 ppb
2017-06-215701-004-09350.540 ppb
2017-06-215701-019-1040ND
2017-06-295701-024-1440ND
2017-07-129590-805-10018.70 ppb
2017-07-265701-050-1300ND
2017-08-095810-800-11459.40 ppb
2017-08-095810-801-125111.0 ppb
2017-08-095810-802-11327.60 ppb
2017-08-095810-803-11007.70 ppb
2017-08-095810-804-113013.0 ppb
2017-08-095810-805-115810.00 ppb
2017-08-095810-806-11108.70 ppb
2017-08-095810-807-103012.0 ppb
2017-08-165701-805-11328.44 ppb
2017-08-235701-004-12451.20 ppb
2017-08-235701-018-1020ND
2017-08-235701-036-1115ND
2017-09-115810-048-07325.80 ppb
2017-09-115810-055-12002.60 ppb
2017-09-135701-805-10038.61 ppb
2017-09-149590-058-11005.70 ppb
2017-09-265701-019-1338ND
2017-09-265701-024-1428ND
2017-10-115701-016-1210ND
2017-10-115701-805-10409.04 ppb
2017-10-169590-805-10309.60 ppb
2017-11-085810-800-09097.70 ppb
2017-11-085810-801-093422.0 ppb
2017-11-085810-802-10002.70 ppb
2017-11-085810-803-10347.20 ppb
2017-11-085810-804-10285.50 ppb
2017-11-085810-805-10554.80 ppb
2017-11-085810-805-10585.40 ppb
2017-11-085810-806-10006.10 ppb
2017-11-085810-807-09313.20 ppb
2017-11-215701-018-1340ND
2017-12-135701-004-1105ND
2017-12-135701-019-0940ND
2017-12-135701-024-1035ND
2017-12-135701-048-08004.63 ppb
2017-12-135701-055-08001.96 ppb
2017-12-135701-805-11264.34 ppb
2018-01-115701-805-12153.74 ppb
2018-02-075810-800-133510.00 ppb
2018-02-075810-801-130616.0 ppb
2018-02-075810-802-11586.80 ppb
2018-02-075810-803-11288.50 ppb
2018-02-075810-804-11019.70 ppb
2018-02-075810-805-11207.50 ppb
2018-02-075810-806-10408.50 ppb
2018-02-075810-807-102011.0 ppb
2018-02-165701-805-09406.33 ppb
2018-02-215701-018-1145ND
2018-02-215701-023-1049ND
2018-03-145701-805-11006.73 ppb
2018-03-215701-004-1400ND
2018-03-215701-019-1000ND
2018-03-215701-024-1105ND
2018-03-285701-048-07055.84 ppb
2018-03-285701-055-07052.25 ppb
2018-05-095701-800-09276.60 ppb
2018-05-095701-801-09277.19 ppb
2018-05-095701-802-09275.82 ppb
2018-05-095701-803-09278.17 ppb
2018-05-095701-804-09275.11 ppb
2018-05-095701-805-09276.99 ppb
2018-05-095701-805-11107.95 ppb
2018-05-095701-806-09275.96 ppb
2018-05-095701-807-09276.88 ppb
2018-05-305701-018-1305ND
2018-06-135701-048-07205.65 ppb
2018-06-135701-055-07202.32 ppb
2018-06-205701-004-14000.530 ppb
2018-06-205701-019-1330ND
2018-07-115810-805-11465.70 ppb
2018-08-109590-018-1040ND
2018-08-109590-036-1300ND
2018-08-155701-805-13408.87 ppb
2018-08-235701-800-08339.33 ppb
2018-08-235701-801-083320.6 ppb
2018-08-235701-802-08337.36 ppb
2018-08-235701-803-083310.1 ppb
2018-08-235701-804-08337.16 ppb
2018-08-235701-805-08337.67 ppb
2018-08-235701-806-083310.4 ppb
2018-08-235701-807-083310.1 ppb
2018-09-135701-048-06487.15 ppb
2018-09-135701-055-06482.55 ppb
2018-09-195701-004-13060.550 ppb
2018-09-195701-019-0945ND
2018-09-195701-024-1100ND
2018-09-195701-805-11558.30 ppb
2018-10-105701-050-1110ND
2018-10-105701-805-11216.21 ppb
2018-11-075701-800-08328.17 ppb
2018-11-075701-801-083223.9 ppb
2018-11-075701-802-08329.67 ppb
2018-11-075701-803-08328.89 ppb
2018-11-075701-804-08327.98 ppb
2018-11-075701-805-08328.47 ppb
2018-11-075701-807-08328.13 ppb
2018-11-145701-805-11007.76 ppb
2018-11-295810-018-1420ND
2018-12-045810-016-12088.30 ppb
2018-12-045810-022-1117ND
2018-12-209590-004-1345ND
2018-12-209590-019-1140ND
2018-12-209590-024-1300ND
2018-12-265701-048-08044.90 ppb
2018-12-265701-055-08032.43 ppb
2018-12-269590-805-09207.10 ppb
2019-01-165810-805-11166.80 ppb
2019-01-295701-023-1022ND
2019-02-075810-800-11258.90 ppb
2019-02-075810-801-11058.40 ppb
2019-02-075810-802-10354.70 ppb
2019-02-075810-803-11458.50 ppb
2019-02-075810-804-13256.90 ppb
2019-02-075810-805-13456.00 ppb
2019-02-075810-806-13059.60 ppb
2019-02-075810-807-12351.60 ppb
2019-02-205701-018-1130ND
2019-02-219590-065-1345ND
2019-03-125701-048-09096.13 ppb
2019-03-125701-055-09092.53 ppb
2019-03-185701-024-1113ND
2019-03-265701-019-1000ND
2019-05-085701-800-09278.89 ppb
2019-05-085701-801-092719.1 ppb
2019-05-085701-802-09274.87 ppb
2019-05-085701-803-09278.59 ppb
2019-05-085701-804-09278.49 ppb
2019-05-085701-805-09277.14 ppb
2019-05-085701-806-09276.76 ppb
2019-05-085701-807-09276.66 ppb
2019-05-295701-018-1115ND
2019-06-105701-004-15300.640 ppb
2019-06-125701-048-09506.35 ppb
2019-06-125701-055-09502.60 ppb
2019-06-135701-801-093119.1 ppb
2019-06-255701-019-0930ND
2019-06-255701-024-1400ND
2019-07-175701-801-122821.8 ppb
2019-07-315701-050-1250ND
2019-08-055701-800-14146.96 ppb
2019-08-055701-801-14257.18 ppb
2019-08-055701-802-14443.92 ppb
2019-08-055701-803-15107.36 ppb
2019-08-055701-804-13466.36 ppb
2019-08-055701-805-13266.29 ppb
2019-08-055701-806-15316.59 ppb
2019-08-055701-807-14596.91 ppb
2019-08-215701-050-1410ND
2019-08-285810-018-1130ND
2019-08-285810-036-1435ND
2019-09-065810-050-1050ND
2019-09-065701-050-1105ND
2019-09-069590-050-1120ND
2019-09-255701-004-14050.650 ppb
2019-09-255701-016-13004.90 ppb
2019-09-255701-019-1030ND
2019-09-255701-024-1500ND
2019-09-305701-048-15155.94 ppb
2019-09-305701-055-15302.35 ppb
2019-10-159590-026-1452ND
2019-10-159590-050-1440ND
2019-10-159590-052-1455ND
2019-10-309590-057-113519.0 ppb
2019-11-045701-800-09303.83 ppb
2019-11-045701-801-094519.6 ppb
2019-11-045701-802-10463.01 ppb
2019-11-045701-803-13215.70 ppb
2019-11-045701-804-13464.69 ppb
2019-11-045701-805-14014.85 ppb
2019-11-045701-806-09115.17 ppb
2019-11-045701-807-12574.09 ppb
2019-11-069590-057-101023.0 ppb
2019-11-139590-057-141522.0 ppb
2019-11-205701-018-1206ND
2019-11-209590-057-110119.0 ppb
2019-12-175701-004-1215ND
2019-12-175701-019-1045ND
2019-12-179590-022-1440ND
2019-12-175701-024-1240ND
2019-12-185701-055-10002.32 ppb