cis-1,2-Dichloroethylene
Compton Water Department
1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 17 | 0 | ND |
2015 | ND | 18 | 0 | ND |
2016 | 0.0931 ppb | 16 | 2 | ND - 0.780 ppb |
2017 | 0.197 ppb | 17 | 5 | ND - 1.20 ppb |
2018 | 0.507 ppb | 15 | 5 | ND - 2.30 ppb |
2019 | 0.347 ppb | 11 | 3 | ND - 1.80 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 70 ppb
The legal limit for cis-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-01-13 | 9588-011-0956 | ND |
2014-01-13 | 9588-028-1118 | ND |
2014-01-13 | 9588-019-1105 | ND |
2014-01-13 | 9588-013-1042 | ND |
2014-01-13 | 9588-014-1020 | ND |
2014-04-17 | 9588-011-1010 | ND |
2014-04-17 | 9588-014-1054 | ND |
2014-06-26 | 9588-019-1148 | ND |
2014-07-29 | 9588-019-0946 | ND |
2014-07-29 | 9588-011-0906 | ND |
2014-07-29 | 9588-015-0933 | ND |
2014-07-29 | 9588-014-1003 | ND |
2014-10-31 | 9588-009-0934 | ND |
2014-10-31 | 9588-011-0958 | ND |
2014-10-31 | 9588-014-1019 | ND |
2014-11-07 | 9588-015-1050 | ND |
2014-11-07 | 9588-019-1018 | ND |
2015-01-29 | 9588-028-1127 | ND |
2015-01-29 | 9588-013-1045 | ND |
2015-01-29 | 9588-019-1014 | ND |
2015-01-29 | 9588-014-1103 | ND |
2015-01-29 | 9588-011-0959 | ND |
2015-01-29 | 9588-009-0944 | ND |
2015-04-16 | 9588-011-1039 | ND |
2015-04-16 | 9588-019-0940 | ND |
2015-04-16 | 9588-014-1055 | ND |
2015-07-24 | 9588-019-1107 | ND |
2015-07-24 | 9588-014-1305 | ND |
2015-07-24 | 9588-009-1005 | ND |
2015-07-24 | 9588-011-0934 | ND |
2015-10-22 | 9588-009-1112 | ND |
2015-10-22 | 9588-019-0938 | ND |
2015-10-22 | 9588-011-1028 | ND |
2015-10-22 | 9588-015-1010 | ND |
2015-10-22 | 9588-014-0951 | ND |
2016-01-27 | 9588-028-1107 | ND |
2016-01-27 | 9588-011-0943 | ND |
2016-01-27 | 9588-014-1125 | ND |
2016-01-27 | 9588-019-1057 | 0.710 ppb |
2016-01-27 | 9588-013-0958 | ND |
2016-04-28 | 9588-011-1030 | ND |
2016-04-28 | 9588-014-1120 | ND |
2016-04-28 | 9588-019-1110 | ND |
2016-07-15 | 9588-014-1036 | ND |
2016-07-15 | 9588-011-1057 | ND |
2016-07-15 | 9588-019-1048 | 0.780 ppb |
2016-10-05 | 9588-011-1222 | ND |
2016-10-05 | 9588-019-1125 | ND |
2016-10-05 | 9588-009-1045 | ND |
2016-10-05 | 9588-015-1103 | ND |
2016-10-05 | 9588-014-1202 | ND |
2017-01-24 | 9588-013-1000 | ND |
2017-01-24 | 9588-011-1015 | ND |
2017-01-24 | 9588-014-1110 | ND |
2017-01-24 | 9588-019-1043 | ND |
2017-01-24 | 9588-028-1055 | 1.20 ppb |
2017-04-26 | 9588-011-1015 | ND |
2017-04-26 | 9588-014-1120 | ND |
2017-04-26 | 9588-028-1145 | 0.510 ppb |
2017-04-26 | 9588-019-1035 | 0.500 ppb |
2017-07-18 | 9588-028-1100 | ND |
2017-07-18 | 9588-019-1035 | 0.500 ppb |
2017-07-18 | 9588-011-0950 | ND |
2017-10-05 | 9588-028-1000 | ND |
2017-10-05 | 9588-011-1140 | ND |
2017-10-05 | 9588-015-1045 | ND |
2017-10-05 | 9588-019-1020 | 0.640 ppb |
2017-12-11 | 9588-009-1032 | ND |
2018-01-09 | 9588-019-1001 | ND |
2018-01-09 | 9588-028-0934 | 1.20 ppb |
2018-01-09 | 9588-009-1041 | ND |
2018-01-09 | 9588-013-1049 | ND |
2018-04-12 | 9588-013-1015 | ND |
2018-04-12 | 9588-028-1100 | 1.10 ppb |
2018-04-12 | 9588-019-1110 | ND |
2018-06-28 | 9588-014-1015 | ND |
2018-06-28 | 9588-011-1035 | ND |
2018-07-23 | 9588-011-1035 | ND |
2018-07-23 | 9588-028-1010 | 2.30 ppb |
2018-07-23 | 9588-019-0955 | ND |
2018-10-25 | 9588-028-1135 | 2.30 ppb |
2018-10-25 | 9588-019-1125 | 0.700 ppb |
2018-12-19 | 9588-015-1130 | ND |
2019-01-30 | 9588-028-1005 | ND |
2019-01-30 | 9588-009-1125 | ND |
2019-01-30 | 9588-019-0945 | ND |
2019-04-25 | 9588-028-0935 | 1.80 ppb |
2019-04-25 | 9588-019-1013 | ND |
2019-07-17 | 9588-019-0930 | ND |
2019-07-17 | 9588-011-1005 | ND |
2019-07-17 | 9588-028-0940 | 1.30 ppb |
2019-10-18 | 9588-019-1015 | 0.720 ppb |
2019-10-18 | 9588-015-1040 | ND |
2019-11-20 | 9588-013-1015 | ND |