Dichloroacetic acid
Sweetwater Authority
Dichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 3.46 ppb | 40 | 38 | ND - 5.50 ppb |
2015 | 4.91 ppb | 30 | 29 | ND - 9.10 ppb |
2016 | 2.79 ppb | 40 | 38 | ND - 5.30 ppb |
2017 | 6.74 ppb | 40 | 37 | ND - 14.0 ppb |
2018 | 6.17 ppb | 40 | 37 | ND - 15.0 ppb |
2019 | 10.4 ppb | 40 | 32 | ND - 22.0 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.2 ppb
The EWG Health Guideline of 0.2 ppb for dichloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.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 |
---|---|---|
2014-02-10 | 2706-900-0940 | ND |
2014-02-10 | 2706-901-1025 | 2.90 ppb |
2014-02-10 | 2706-902-1050 | 4.70 ppb |
2014-02-10 | 2706-903-1103 | 4.40 ppb |
2014-02-10 | 2706-904-1110 | 4.30 ppb |
2014-02-10 | 2706-905-1126 | 3.80 ppb |
2014-02-10 | 2706-906-1136 | 4.30 ppb |
2014-02-10 | 2706-907-1210 | 4.20 ppb |
2014-02-10 | 2706-908-1305 | 3.60 ppb |
2014-02-10 | 2706-909-1329 | 4.10 ppb |
2014-05-12 | 2706-900-0938 | 1.30 ppb |
2014-05-12 | 2706-901-1035 | 3.30 ppb |
2014-05-12 | 2706-902-1055 | 3.30 ppb |
2014-05-12 | 2706-903-1107 | 3.50 ppb |
2014-05-12 | 2706-904-1115 | 3.10 ppb |
2014-05-12 | 2706-905-1130 | 3.60 ppb |
2014-05-12 | 2706-906-1140 | 3.30 ppb |
2014-05-12 | 2706-907-1212 | 4.00 ppb |
2014-05-12 | 2706-908-1300 | 3.70 ppb |
2014-05-12 | 2706-909-1316 | 3.60 ppb |
2014-08-11 | 2706-900-0957 | ND |
2014-08-11 | 2706-901-1050 | 3.10 ppb |
2014-08-11 | 2706-902-1115 | 3.10 ppb |
2014-08-11 | 2706-903-1128 | 3.50 ppb |
2014-08-11 | 2706-904-1135 | 3.20 ppb |
2014-08-11 | 2706-905-1152 | 3.40 ppb |
2014-08-11 | 2706-906-1202 | 3.30 ppb |
2014-08-11 | 2706-907-1245 | 3.50 ppb |
2014-08-11 | 2706-908-1315 | 3.30 ppb |
2014-08-11 | 2706-909-1330 | 2.10 ppb |
2014-11-10 | 2706-900-0855 | 1.50 ppb |
2014-11-10 | 2706-901-0955 | 2.60 ppb |
2014-11-10 | 2706-902-1022 | 5.50 ppb |
2014-11-10 | 2706-903-1038 | 5.10 ppb |
2014-11-10 | 2706-904-1044 | 5.10 ppb |
2014-11-10 | 2706-905-1100 | 3.10 ppb |
2014-11-10 | 2706-906-1110 | 4.80 ppb |
2014-11-10 | 2706-907-1140 | 5.10 ppb |
2014-11-10 | 2706-908-1230 | 4.50 ppb |
2014-11-10 | 2706-909-1248 | 3.50 ppb |
2015-02-09 | 2706-900-0913 | ND |
2015-02-09 | 2706-901-1010 | 4.90 ppb |
2015-02-09 | 2706-902-1030 | 7.60 ppb |
2015-02-09 | 2706-903-1055 | 8.80 ppb |
2015-02-09 | 2706-904-1103 | 8.10 ppb |
2015-02-09 | 2706-905-1130 | 8.10 ppb |
2015-02-09 | 2706-906-1140 | 9.00 ppb |
2015-02-09 | 2706-907-1205 | 7.70 ppb |
2015-02-09 | 2706-908-1306 | 9.00 ppb |
2015-02-09 | 2706-909-1320 | 9.10 ppb |
2015-05-11 | 2706-900-0912 | 1.80 ppb |
2015-05-11 | 2706-901-1018 | 1.40 ppb |
2015-05-11 | 2706-902-1036 | 4.00 ppb |
2015-05-11 | 2706-903-1050 | 3.10 ppb |
2015-05-11 | 2706-904-1055 | 4.50 ppb |
2015-05-11 | 2706-905-1108 | 3.90 ppb |
2015-05-11 | 2706-906-1122 | 4.50 ppb |
2015-05-11 | 2706-907-1200 | 3.70 ppb |
2015-05-11 | 2706-908-1248 | 3.00 ppb |
2015-05-11 | 2706-909-1305 | 4.00 ppb |
2015-08-10 | 2706-900-1000 | 3.00 ppb |
2015-08-10 | 2706-901-1111 | 3.70 ppb |
2015-08-10 | 2706-902-1136 | 4.10 ppb |
2015-08-10 | 2706-903-1140 | 4.70 ppb |
2015-08-10 | 2706-904-1213 | 4.50 ppb |
2015-08-10 | 2706-905-1223 | 4.70 ppb |
2015-08-10 | 2706-906-1235 | 4.80 ppb |
2015-08-10 | 2706-907-1312 | 3.60 ppb |
2015-08-10 | 2706-908-1424 | 4.60 ppb |
2015-08-10 | 2706-909-1443 | 3.40 ppb |
2016-02-08 | 2706-900-1000 | 1.60 ppb |
2016-02-08 | 2706-901-1106 | 2.60 ppb |
2016-02-08 | 2706-902-1136 | 1.50 ppb |
2016-02-08 | 2706-903-1215 | 2.40 ppb |
2016-02-08 | 2706-904-1228 | 2.30 ppb |
2016-02-08 | 2706-905-1315 | 2.50 ppb |
2016-02-08 | 2706-906-1300 | 2.10 ppb |
2016-02-08 | 2706-907-1405 | 2.70 ppb |
2016-02-08 | 2706-908-1450 | 2.10 ppb |
2016-02-08 | 2706-909-1520 | 2.80 ppb |
2016-05-09 | 2706-900-0950 | ND |
2016-05-09 | 2706-901-1036 | ND |
2016-05-09 | 2706-902-1057 | 1.70 ppb |
2016-05-09 | 2706-903-1113 | 3.10 ppb |
2016-05-09 | 2706-904-1120 | 2.60 ppb |
2016-05-09 | 2706-905-1136 | 2.80 ppb |
2016-05-09 | 2706-906-1145 | 2.80 ppb |
2016-05-09 | 2706-907-1219 | 2.40 ppb |
2016-05-09 | 2706-908-1249 | 3.30 ppb |
2016-05-09 | 2706-909-1305 | 1.30 ppb |
2016-08-08 | 0007-900-0954 | 4.50 ppb |
2016-08-08 | 0007-901-1109 | 1.70 ppb |
2016-08-08 | 0007-902-1130 | 4.60 ppb |
2016-08-08 | 0007-903-1137 | 4.10 ppb |
2016-08-08 | 0007-904-1208 | 4.70 ppb |
2016-08-08 | 0007-905-1219 | 3.80 ppb |
2016-08-08 | 0007-906-1232 | 4.40 ppb |
2016-08-08 | 0007-907-1309 | 5.30 ppb |
2016-08-08 | 0007-908-1357 | 4.50 ppb |
2016-08-08 | 0007-909-1415 | 3.60 ppb |
2016-11-14 | 9590-900-0930 | 2.20 ppb |
2016-11-14 | 9590-901-1008 | 2.40 ppb |
2016-11-14 | 9590-902-1040 | 2.70 ppb |
2016-11-14 | 9590-903-1053 | 3.10 ppb |
2016-11-14 | 9590-904-1105 | 2.70 ppb |
2016-11-14 | 9590-905-1140 | 2.80 ppb |
2016-11-14 | 9590-906-1145 | 3.00 ppb |
2016-11-14 | 9590-907-1240 | 3.30 ppb |
2016-11-14 | 9590-908-1315 | 3.10 ppb |
2016-11-14 | 9590-909-1330 | 2.40 ppb |
2017-02-13 | 9590-900-0950 | ND |
2017-02-13 | 9590-901-1025 | 2.30 ppb |
2017-02-13 | 9590-902-1042 | 2.20 ppb |
2017-02-13 | 9590-903-1320 | 2.60 ppb |
2017-02-13 | 9590-904-1335 | 2.60 ppb |
2017-02-13 | 9590-905-1108 | 2.20 ppb |
2017-02-13 | 9590-906-1350 | 2.70 ppb |
2017-02-13 | 9590-907-1155 | 2.70 ppb |
2017-02-13 | 9590-908-1225 | 2.70 ppb |
2017-02-13 | 9590-909-1415 | 2.60 ppb |
2017-05-08 | 9590-900-1005 | 4.80 ppb |
2017-05-08 | 9590-901-1055 | 9.70 ppb |
2017-05-08 | 9590-902-1115 | 11.0 ppb |
2017-05-08 | 9590-903-1128 | 12.0 ppb |
2017-05-08 | 9590-904-1153 | 11.0 ppb |
2017-05-08 | 9590-905-1204 | 11.0 ppb |
2017-05-08 | 9590-906-1217 | 13.0 ppb |
2017-05-08 | 9590-907-1253 | 12.0 ppb |
2017-05-08 | 9590-908-1336 | 14.0 ppb |
2017-05-08 | 9590-909-1355 | 9.60 ppb |
2017-08-14 | 9590-900-0947 | ND |
2017-08-14 | 9590-901-1030 | ND |
2017-08-14 | 9590-902-1116 | 2.30 ppb |
2017-08-14 | 9590-903-1139 | 2.80 ppb |
2017-08-14 | 9590-904-1209 | 6.80 ppb |
2017-08-14 | 9590-905-1225 | 7.70 ppb |
2017-08-14 | 9590-906-1240 | 7.90 ppb |
2017-08-14 | 9590-907-1342 | 8.30 ppb |
2017-08-14 | 9590-908-1415 | 8.90 ppb |
2017-08-14 | 9590-909-1505 | 5.50 ppb |
2017-11-13 | 9590-900-0958 | 1.70 ppb |
2017-11-13 | 9590-901-1045 | 5.00 ppb |
2017-11-13 | 9590-902-1110 | 6.70 ppb |
2017-11-13 | 9590-903-1122 | 8.20 ppb |
2017-11-13 | 9590-904-1157 | 10.00 ppb |
2017-11-13 | 9590-905-1230 | 11.0 ppb |
2017-11-13 | 9590-906-1243 | 12.0 ppb |
2017-11-13 | 9590-907-1335 | 11.0 ppb |
2017-11-13 | 9590-908-1411 | 12.0 ppb |
2017-11-13 | 9590-909-1457 | 11.0 ppb |
2018-02-12 | 9590-900-1012 | ND |
2018-02-12 | 9590-901-1112 | 9.20 ppb |
2018-02-12 | 9590-902-1122 | 11.0 ppb |
2018-02-12 | 9590-903-1146 | 12.0 ppb |
2018-02-12 | 9590-904-1151 | 11.0 ppb |
2018-02-12 | 9590-905-1210 | 11.0 ppb |
2018-02-12 | 9590-906-1220 | 10.00 ppb |
2018-02-12 | 9590-907-1300 | 11.0 ppb |
2018-02-12 | 9590-908-1336 | 14.0 ppb |
2018-02-12 | 9590-909-1355 | 13.0 ppb |
2018-05-14 | 9590-900-1031 | ND |
2018-05-14 | 9590-901-1141 | 1.30 ppb |
2018-05-14 | 9590-902-1220 | 6.80 ppb |
2018-05-14 | 9590-903-1242 | 6.60 ppb |
2018-05-14 | 9590-904-1326 | 12.0 ppb |
2018-05-14 | 9590-905-1339 | 8.40 ppb |
2018-05-14 | 9590-906-1359 | 11.0 ppb |
2018-05-14 | 9590-907-1454 | 12.0 ppb |
2018-05-14 | 9590-908-1537 | 15.0 ppb |
2018-05-14 | 9590-909-1622 | 11.0 ppb |
2018-08-13 | 9590-900-0948 | ND |
2018-08-13 | 9590-901-1041 | 2.00 ppb |
2018-08-13 | 9590-902-1121 | 3.90 ppb |
2018-08-13 | 9590-903-1154 | 2.70 ppb |
2018-08-13 | 9590-904-1208 | 4.60 ppb |
2018-08-13 | 9590-905-1234 | 4.70 ppb |
2018-08-13 | 9590-906-1257 | 4.90 ppb |
2018-08-13 | 9590-907-1358 | 5.50 ppb |
2018-08-13 | 9590-908-1454 | 5.00 ppb |
2018-08-13 | 9590-909-1518 | 4.50 ppb |
2018-11-14 | 9590-900-0817 | 1.80 ppb |
2018-11-14 | 9590-901-0840 | 1.60 ppb |
2018-11-14 | 9590-902-0900 | 2.20 ppb |
2018-11-14 | 9590-903-0915 | 1.80 ppb |
2018-11-14 | 9590-904-0930 | 2.40 ppb |
2018-11-14 | 9590-905-1005 | 2.10 ppb |
2018-11-14 | 9590-906-0950 | 2.50 ppb |
2018-11-14 | 9590-907-1035 | 3.30 ppb |
2018-11-14 | 9590-908-1100 | 2.20 ppb |
2018-11-14 | 9590-909-1125 | 2.70 ppb |
2019-02-13 | 9590-900-0813 | ND |
2019-02-13 | 9590-901-0844 | ND |
2019-02-13 | 9590-902-0902 | ND |
2019-02-13 | 9590-903-0917 | ND |
2019-02-13 | 9590-904-0930 | ND |
2019-02-13 | 9590-905-0958 | 2.60 ppb |
2019-02-13 | 9590-906-0946 | 3.00 ppb |
2019-02-13 | 9590-907-1027 | 3.50 ppb |
2019-02-13 | 9590-908-1050 | 3.60 ppb |
2019-02-13 | 9590-909-1114 | 3.80 ppb |
2019-05-15 | 9590-900-0820 | ND |
2019-05-15 | 9590-901-0855 | 15.0 ppb |
2019-05-15 | 9590-902-1015 | 19.0 ppb |
2019-05-15 | 9590-903-0920 | 16.0 ppb |
2019-05-15 | 9590-904-0935 | 19.0 ppb |
2019-05-15 | 9590-905-1000 | 22.0 ppb |
2019-05-15 | 9590-906-0950 | 20.0 ppb |
2019-05-15 | 9590-907-1050 | 21.0 ppb |
2019-05-15 | 9590-908-1110 | 22.0 ppb |
2019-05-15 | 9590-909-1125 | 22.0 ppb |
2019-08-14 | 9590-900-0815 | ND |
2019-08-14 | 9590-901-0840 | 11.0 ppb |
2019-08-14 | 9590-902-0900 | 14.0 ppb |
2019-08-14 | 9590-903-0915 | 13.0 ppb |
2019-08-14 | 9590-904-0930 | 17.0 ppb |
2019-08-14 | 9590-905-0955 | 18.0 ppb |
2019-08-14 | 9590-906-0945 | 18.0 ppb |
2019-08-14 | 9590-907-1035 | 21.0 ppb |
2019-08-14 | 9590-908-1055 | 18.0 ppb |
2019-08-14 | 9590-909-1110 | 20.0 ppb |
2019-11-13 | 9590-900-0813 | ND |
2019-11-13 | 9590-901-0840 | 7.20 ppb |
2019-11-13 | 9590-902-0905 | 8.80 ppb |
2019-11-13 | 9590-903-0925 | 5.80 ppb |
2019-11-13 | 9590-904-0945 | 6.40 ppb |
2019-11-13 | 9590-905-1025 | 9.20 ppb |
2019-11-13 | 9590-906-1005 | 7.00 ppb |
2019-11-13 | 9590-907-1050 | 8.40 ppb |
2019-11-13 | 9590-908-1120 | 9.40 ppb |
2019-11-13 | 9590-909-1150 | 9.70 ppb |