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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

California Water Service - Stockton

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.

 

525

Samples

0

Samples exceeding legal limit (MCL)

241

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.803 ppb11651ND - 3.14 ppb
20154.10 ppb10251ND - 13.3 ppb
20163.17 ppb7236ND - 11.9 ppb
20171.70 ppb8335ND - 7.94 ppb
20180.851 ppb7732ND - 3.67 ppb
20191.45 ppb7536ND - 7.27 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
2014-01-065701-069-09171.50 ppb
2014-01-065701-131-09051.55 ppb
2014-01-235701-007-1227ND
2014-01-235701-013-1145ND
2014-01-235701-028-1205ND
2014-01-235701-064-1045ND
2014-01-235701-065-1105ND
2014-01-235701-067-1125ND
2014-02-035701-069-09571.19 ppb
2014-02-035701-131-09451.16 ppb
2014-02-045701-063-1036ND
2014-02-045701-125-1040ND
2014-02-125701-063-0930ND
2014-02-125701-125-0937ND
2014-02-135701-131-11561.34 ppb
2014-02-135701-900-11301.60 ppb
2014-02-135701-901-09051.45 ppb
2014-02-135701-902-10001.77 ppb
2014-02-135701-903-09301.54 ppb
2014-02-135701-904-11041.73 ppb
2014-02-135701-905-11411.47 ppb
2014-02-135701-906-10241.53 ppb
2014-02-205701-062-1115ND
2014-03-045701-069-07151.67 ppb
2014-03-045701-131-07261.43 ppb
2014-03-115701-063-1238ND
2014-03-115701-125-1210ND
2014-03-185701-130-1146ND
2014-03-185701-132-1310ND
2014-04-025701-069-09201.65 ppb
2014-04-025701-131-09401.41 ppb
2014-04-095701-063-1212ND
2014-04-095701-125-1307ND
2014-04-155701-007-1013ND
2014-04-155701-013-1210ND
2014-04-155701-018-1232ND
2014-04-155701-028-1150ND
2014-04-155701-065-1624ND
2014-04-155701-067-1130ND
2014-04-299590-018-1015ND
2014-04-299590-018-1150ND
2014-04-305701-050-1319ND
2014-04-305701-052-1020ND
2014-05-065701-069-09301.74 ppb
2014-05-065701-131-09471.89 ppb
2014-05-125701-131-11411.44 ppb
2014-05-125701-901-12370.600 ppb
2014-05-125701-905-11300.540 ppb
2014-05-125701-906-10101.83 ppb
2014-05-135701-063-1000ND
2014-05-135701-125-0925ND
2014-05-135701-900-13111.94 ppb
2014-05-135701-902-12332.07 ppb
2014-05-135701-903-12151.86 ppb
2014-05-135701-904-12482.00 ppb
2014-05-215701-053-1015ND
2014-05-215701-062-1125ND
2014-06-035701-069-11171.37 ppb
2014-06-035701-131-21121.22 ppb
2014-06-045701-063-1144ND
2014-06-045701-125-1059ND
2014-06-235701-130-0954ND
2014-06-235701-132-1020ND
2014-07-035701-069-10352.06 ppb
2014-07-035701-131-10521.61 ppb
2014-07-075701-063-0918ND
2014-07-075701-125-0921ND
2014-07-225701-007-1532ND
2014-07-225701-013-1512ND
2014-07-225701-028-1026ND
2014-07-225701-065-0914ND
2014-07-225701-067-1001ND
2014-07-305701-029-1140ND
2014-08-125810-069-13252.10 ppb
2014-08-125810-131-13402.20 ppb
2014-08-135810-063-1029ND
2014-08-135810-125-0955ND
2014-08-145701-131-09501.71 ppb
2014-08-145701-900-11522.13 ppb
2014-08-145701-901-10120.820 ppb
2014-08-145701-902-10472.84 ppb
2014-08-145701-903-11202.03 ppb
2014-08-145701-904-10132.67 ppb
2014-08-145701-905-09351.94 ppb
2014-08-145701-906-10321.97 ppb
2014-08-275701-062-1228ND
2014-09-165701-069-09502.41 ppb
2014-09-165701-131-09372.39 ppb
2014-09-175701-063-1156ND
2014-09-175701-125-1200ND
2014-09-305701-132-1144ND
2014-10-139590-063-1550ND
2014-10-139590-125-1318ND
2014-10-275701-028-1330ND
2014-10-275701-065-1150ND
2014-10-275701-067-1208ND
2014-10-295701-007-1240ND
2014-10-295701-013-1145ND
2014-11-045701-069-09322.44 ppb
2014-11-045701-131-09441.96 ppb
2014-11-055701-063-1027ND
2014-11-055701-125-1033ND
2014-11-125701-131-15042.10 ppb
2014-11-125701-900-14352.64 ppb
2014-11-125701-901-1522ND
2014-11-125701-902-13522.93 ppb
2014-11-125701-903-13382.35 ppb
2014-11-125701-904-14233.14 ppb
2014-11-125701-905-1453ND
2014-11-125701-906-14072.55 ppb
2014-11-185701-062-1332ND
2014-12-095701-063-1050ND
2014-12-095701-125-1026ND
2014-12-159590-069-10321.70 ppb
2014-12-175701-130-1120ND
2014-12-175701-132-1159ND
2015-01-125701-069-10273.96 ppb
2015-01-125701-131-10393.80 ppb
2015-01-155701-063-0955ND
2015-01-155701-125-0959ND
2015-01-205701-069-10142.64 ppb
2015-01-205701-131-10292.74 ppb
2015-01-225701-054-1244ND
2015-01-265701-069-11052.21 ppb
2015-01-265701-131-11202.12 ppb
2015-01-285701-013-1154ND
2015-01-285701-065-1205ND
2015-01-285701-067-11400.790 ppb
2015-02-025701-069-12412.39 ppb
2015-02-025701-131-12321.72 ppb
2015-02-125701-063-0938ND
2015-02-125701-125-0942ND
2015-02-245701-013-1126ND
2015-02-245701-045-1100ND
2015-02-245701-062-1142ND
2015-02-255701-069-100011.2 ppb
2015-02-255701-131-104913.3 ppb
2015-02-255701-900-112611.5 ppb
2015-02-255701-901-11090.940 ppb
2015-02-255701-902-121010.5 ppb
2015-02-255701-903-123011.6 ppb
2015-02-255701-904-114612.0 ppb
2015-02-255701-905-102811.5 ppb
2015-02-255701-906-124411.3 ppb
2015-03-035701-069-08049.10 ppb
2015-03-035701-131-08056.57 ppb
2015-03-105701-063-1345ND
2015-03-105701-069-09267.93 ppb
2015-03-105701-125-1325ND
2015-03-105701-131-09268.13 ppb
2015-03-165701-069-08479.55 ppb
2015-03-165701-131-08489.23 ppb
2015-03-235701-069-08308.90 ppb
2015-03-235701-131-08319.10 ppb
2015-03-305701-069-09579.44 ppb
2015-03-305701-131-10179.88 ppb
2015-04-085701-051-1223ND
2015-04-145701-063-1150ND
2015-04-145701-125-1130ND
2015-04-155701-065-1035ND
2015-05-129590-063-1035ND
2015-05-129590-125-1020ND
2015-05-135701-131-08547.31 ppb
2015-05-135701-900-08549.70 ppb
2015-05-135701-901-0854ND
2015-05-135701-902-085410.0 ppb
2015-05-135701-903-08549.20 ppb
2015-05-135701-904-085410.6 ppb
2015-05-135701-905-08548.11 ppb
2015-05-135701-906-08548.48 ppb
2015-05-215701-007-1650ND
2015-05-215701-028-1240ND
2015-05-215701-062-1325ND
2015-06-095701-063-0954ND
2015-06-095701-125-1025ND
2015-06-165701-055-1406ND
2015-06-165701-058-1535ND
2015-06-165701-069-10309.55 ppb
2015-06-165701-131-10409.51 ppb
2015-06-165701-132-1348ND
2015-07-145701-063-1030ND
2015-07-145701-125-1015ND
2015-07-225701-056-1112ND
2015-07-225701-065-1145ND
2015-08-115701-131-06558.32 ppb
2015-08-115701-900-065511.5 ppb
2015-08-115701-901-06558.84 ppb
2015-08-115701-902-065512.5 ppb
2015-08-115701-903-065510.3 ppb
2015-08-115701-904-065512.5 ppb
2015-08-115701-905-06559.43 ppb
2015-08-115701-906-06559.55 ppb
2015-08-161610-133-1900ND
2015-08-265701-063-1300ND
2015-08-265701-125-1303ND
2015-08-305701-062-1138ND
2015-09-095701-063-1018ND
2015-09-095701-125-1021ND
2015-10-155701-060-1235ND
2015-10-155701-063-1154ND
2015-10-155701-125-1150ND
2015-10-275701-050-1026ND
2015-10-275701-065-0930ND
2015-11-045701-063-1123ND
2015-11-045701-125-1103ND
2015-11-195810-059-1048ND
2015-11-205810-131-12006.50 ppb
2015-11-205810-900-10256.70 ppb
2015-11-205810-901-1135ND
2015-11-205810-902-124511.0 ppb
2015-11-205810-903-11177.70 ppb
2015-11-205810-904-10469.70 ppb
2015-11-205810-905-0948ND
2015-11-205810-906-11006.90 ppb
2015-12-075701-062-1103ND
2015-12-085701-063-1206ND
2015-12-085701-125-1215ND
2015-12-095701-018-0535ND
2016-01-135701-063-0956ND
2016-01-135701-125-0949ND
2016-01-205701-065-1305ND
2016-02-035701-063-1215ND
2016-02-035701-125-1200ND
2016-02-175701-131-07257.84 ppb
2016-02-175701-900-072510.2 ppb
2016-02-175701-901-07257.98 ppb
2016-02-175701-902-072511.4 ppb
2016-02-175701-903-07259.57 ppb
2016-02-175701-904-072511.3 ppb
2016-02-175701-905-07250.660 ppb
2016-02-175701-906-07259.32 ppb
2016-02-235701-013-1306ND
2016-02-235701-061-1135ND
2016-02-235701-062-1347ND
2016-03-095701-063-1024ND
2016-03-095701-125-1004ND
2016-04-125701-063-1324ND
2016-04-125701-125-1304ND
2016-04-135701-051-11400.520 ppb
2016-04-135701-065-1115ND
2016-05-105701-063-1037ND
2016-05-105701-125-1042ND
2016-05-105701-131-07247.29 ppb
2016-05-105701-900-07248.07 ppb
2016-05-105701-901-07245.08 ppb
2016-05-105701-902-072410.4 ppb
2016-05-105701-903-07249.30 ppb
2016-05-105701-904-072411.9 ppb
2016-05-105701-905-07241.55 ppb
2016-05-105701-906-07248.84 ppb
2016-05-175701-007-1123ND
2016-05-175701-028-1107ND
2016-05-175701-062-1144ND
2016-06-145701-063-1253ND
2016-06-145701-125-1235ND
2016-06-215701-069-10302.92 ppb
2016-06-215701-131-10502.85 ppb
2016-06-215701-132-1300ND
2016-07-055701-063-1450ND
2016-07-055701-125-1434ND
2016-07-265701-018-1225ND
2016-08-095810-063-1050ND
2016-08-095810-125-1030ND
2016-08-155701-131-10403.32 ppb
2016-08-155701-900-10404.00 ppb
2016-08-155701-901-10404.05 ppb
2016-08-155701-902-10404.05 ppb
2016-08-155701-903-10403.68 ppb
2016-08-155701-904-10404.61 ppb
2016-08-155701-905-10403.83 ppb
2016-08-155701-906-10403.30 ppb
2016-08-305701-062-1410ND
2016-09-135701-063-1244ND
2016-09-135701-125-1226ND
2016-10-135701-063-1332ND
2016-10-135701-125-1330ND
2016-11-085701-063-1126ND
2016-11-085701-125-1122ND
2016-11-165701-062-1150ND
2016-11-175701-131-08555.93 ppb
2016-11-175701-900-08557.14 ppb
2016-11-175701-901-08556.31 ppb
2016-11-175701-902-08557.99 ppb
2016-11-175701-903-08557.44 ppb
2016-11-175701-904-08559.13 ppb
2016-11-175701-905-08556.68 ppb
2016-11-175701-906-08556.73 ppb
2016-12-065810-015-10143.00 ppb
2016-12-145701-063-1349ND
2016-12-145701-125-1406ND
2017-01-125701-063-1110ND
2017-01-125701-125-1055ND
2017-01-185701-064-1008ND
2017-02-145701-063-1045ND
2017-02-145701-125-1030ND
2017-02-175810-131-09454.50 ppb
2017-02-175810-900-13206.20 ppb
2017-02-175810-901-10204.70 ppb
2017-02-175810-902-11456.20 ppb
2017-02-175810-903-11304.90 ppb
2017-02-175810-904-13057.00 ppb
2017-02-175810-905-09303.00 ppb
2017-02-175810-906-10354.30 ppb
2017-02-215701-062-1320ND
2017-03-085810-063-1115ND
2017-03-085810-125-1050ND
2017-04-065701-063-1323ND
2017-04-065701-125-1305ND
2017-04-175701-051-1110ND
2017-04-175701-052-1155ND
2017-04-185701-133-1122ND
2017-05-025701-052-1302ND
2017-05-035701-063-1028ND
2017-05-035701-125-1045ND
2017-05-125701-131-09034.29 ppb
2017-05-125701-900-09037.94 ppb
2017-05-125701-901-09034.76 ppb
2017-05-125701-902-09036.74 ppb
2017-05-125701-903-09035.46 ppb
2017-05-125701-904-09036.60 ppb
2017-05-125701-905-09034.87 ppb
2017-05-125701-906-09035.09 ppb
2017-05-155701-007-1100ND
2017-05-155701-062-1255ND
2017-05-165701-028-1410ND
2017-05-165701-053-15400.530 ppb
2017-05-245701-018-1035ND
2017-06-145701-052-1000ND
2017-06-145701-130-1222ND
2017-06-145701-132-1116ND
2017-06-155701-069-12401.71 ppb
2017-06-155701-131-12501.73 ppb
2017-06-205701-063-1025ND
2017-06-205701-125-1012ND
2017-07-115701-052-1230ND
2017-07-115701-063-1524ND
2017-07-115701-125-1511ND
2017-07-255701-029-1014ND
2017-07-255701-133-1420ND
2017-08-025701-052-1310ND
2017-08-085701-063-1140ND
2017-08-085701-125-1143ND
2017-08-165810-131-14461.50 ppb
2017-08-165810-900-11241.80 ppb
2017-08-165810-901-13021.80 ppb
2017-08-165810-902-13362.70 ppb
2017-08-165810-903-13582.00 ppb
2017-08-165810-904-10502.60 ppb
2017-08-165810-905-14261.80 ppb
2017-08-165810-906-11502.00 ppb
2017-08-175701-062-1135ND
2017-09-065701-052-1429ND
2017-09-075701-063-1348ND
2017-09-075701-125-1344ND
2017-10-115701-052-1020ND
2017-10-125701-063-1210ND
2017-10-125701-125-1200ND
2017-10-165701-133-1115ND
2017-11-065701-063-1523ND
2017-11-065701-125-1521ND
2017-11-085810-052-0930ND
2017-11-135810-131-10133.70 ppb
2017-11-135810-900-10584.00 ppb
2017-11-135810-901-12363.90 ppb
2017-11-135810-902-11374.90 ppb
2017-11-135810-903-13144.00 ppb
2017-11-135810-904-11186.20 ppb
2017-11-135810-905-10333.90 ppb
2017-11-135810-906-12574.00 ppb
2017-11-285701-062-0955ND
2017-11-285701-067-1033ND
2017-12-055701-063-1120ND
2017-12-055701-125-1100ND
2018-01-035701-063-1143ND
2018-01-035701-125-1132ND
2018-01-245701-133-1520ND
2018-02-065701-063-1004ND
2018-02-065701-125-1001ND
2018-02-145810-131-15301.40 ppb
2018-02-145810-900-09551.60 ppb
2018-02-145810-901-14101.40 ppb
2018-02-145810-902-10452.00 ppb
2018-02-145810-903-11091.80 ppb
2018-02-145810-904-10152.00 ppb
2018-02-145810-905-15161.70 ppb
2018-02-145810-906-13551.90 ppb
2018-02-205701-045-1000ND
2018-02-205701-062-1320ND
2018-04-119590-051-1340ND
2018-04-119590-133-1035ND
2018-05-085701-007-1040ND
2018-05-085701-054-1140ND
2018-05-085701-062-1115ND
2018-05-095701-063-1040ND
2018-05-095701-125-1054ND
2018-05-155810-131-09021.60 ppb
2018-05-155810-900-11112.80 ppb
2018-05-155810-901-10201.80 ppb
2018-05-155810-902-13272.40 ppb
2018-05-155810-903-13052.00 ppb
2018-05-155810-904-11452.90 ppb
2018-05-155810-905-09441.90 ppb
2018-05-155810-906-12251.90 ppb
2018-06-145810-059-1510ND
2018-06-145810-060-1515ND
2018-06-145810-069-1340ND
2018-06-145810-131-1355ND
2018-06-265701-055-1205ND
2018-06-265701-058-1040ND
2018-06-265701-063-1117ND
2018-06-265701-125-1121ND
2018-06-265701-132-1505ND
2018-07-105810-063-1250ND
2018-07-105810-125-1230ND
2018-07-175701-056-1210ND
2018-07-175701-133-1350ND
2018-08-065701-063-1407ND
2018-08-065701-125-1354ND
2018-08-065701-125-1357ND
2018-08-165701-062-1015ND
2018-08-165701-131-10111.60 ppb
2018-08-165701-900-10111.78 ppb
2018-08-165701-901-10111.76 ppb
2018-08-165701-902-10112.29 ppb
2018-08-165701-903-10111.98 ppb
2018-08-165701-904-10112.09 ppb
2018-08-165701-905-10111.77 ppb
2018-08-165701-906-10111.91 ppb
2018-09-065701-063-1315ND
2018-09-065701-125-1321ND
2018-09-065701-125-1338ND
2018-10-025701-063-1400ND
2018-10-025701-125-1406ND
2018-10-025701-125-1424ND
2018-10-165810-133-1155ND
2018-10-245810-050-1425ND
2018-11-075701-063-1032ND
2018-11-075701-125-1039ND
2018-11-075701-125-1055ND
2018-11-135701-131-09361.61 ppb
2018-11-135701-900-09363.17 ppb
2018-11-135701-901-09361.68 ppb
2018-11-135701-902-09363.44 ppb
2018-11-135701-903-09362.11 ppb
2018-11-135701-904-09363.67 ppb
2018-11-135701-905-09361.85 ppb
2018-11-135701-906-09361.69 ppb
2018-11-265810-062-1305ND
2018-12-045810-063-1305ND
2018-12-045810-125-1315ND
2019-01-085810-063-1018ND
2019-01-085810-125-1030ND
2019-01-225810-061-10121.50 ppb
2019-01-225810-133-1200ND
2019-02-125701-051-1335ND
2019-02-125701-063-1010ND
2019-02-125701-125-1020ND
2019-02-125701-125-1033ND
2019-02-195701-131-08374.08 ppb
2019-02-195701-900-08374.61 ppb
2019-02-195701-901-08374.23 ppb
2019-02-195701-902-08376.61 ppb
2019-02-195701-903-08374.94 ppb
2019-02-195701-904-08377.27 ppb
2019-02-195701-905-08374.37 ppb
2019-02-195701-906-08374.78 ppb
2019-02-265810-062-1150ND
2019-03-185701-063-1432ND
2019-03-185701-125-1439ND
2019-03-185701-125-1450ND
2019-04-015701-063-1348ND
2019-04-015701-125-1356ND
2019-04-155810-050-1335ND
2019-04-155810-133-1155ND
2019-04-175701-051-1305ND
2019-05-135701-063-0935ND
2019-05-135701-125-1007ND
2019-05-145701-131-09271.78 ppb
2019-05-145701-900-09272.24 ppb
2019-05-145701-901-09271.95 ppb
2019-05-145701-902-09272.82 ppb
2019-05-145701-903-09272.40 ppb
2019-05-145701-904-09273.59 ppb
2019-05-145701-905-09272.01 ppb
2019-05-145701-906-09272.12 ppb
2019-05-215701-007-1120ND
2019-05-215701-028-1000ND
2019-05-215701-062-1100ND
2019-06-055701-063-1246ND
2019-06-055701-125-1310ND
2019-06-175701-069-09451.99 ppb
2019-06-175701-131-10302.07 ppb
2019-06-195701-132-1020ND
2019-07-085701-063-1101ND
2019-07-085701-125-1040ND
2019-07-165701-133-1335ND
2019-08-135701-063-1403ND
2019-08-135701-125-1350ND
2019-08-145701-062-1238ND
2019-08-155701-131-11451.57 ppb
2019-08-155701-900-09501.85 ppb
2019-08-155701-901-13201.62 ppb
2019-08-155701-902-11102.19 ppb
2019-08-155701-903-10452.10 ppb
2019-08-155701-904-10152.20 ppb
2019-08-155701-905-14101.75 ppb
2019-08-155701-906-13451.82 ppb
2019-09-105701-063-1327ND
2019-09-105701-125-1308ND
2019-10-085701-063-1359ND
2019-10-085701-125-1418ND
2019-10-155701-133-1220ND
2019-11-065701-063-1346ND
2019-11-065701-125-13301.49 ppb
2019-11-145701-131-14052.90 ppb
2019-11-145701-900-13153.35 ppb
2019-11-145701-901-14253.11 ppb
2019-11-145701-902-12203.53 ppb
2019-11-145701-903-14553.48 ppb
2019-11-145701-904-12504.01 ppb
2019-11-145701-905-13403.28 ppb
2019-11-145701-906-10253.19 ppb
2019-11-205701-062-1332ND
2019-12-115701-063-1401ND
2019-12-115701-125-1355ND