1,1-Dichloroethylene
Crescenta Valley CWD
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 11 | 0 | ND |
2015 | ND | 11 | 0 | ND |
2016 | ND | 16 | 0 | ND |
2017 | ND | 13 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 11 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 7 ppb
The legal limit for 1,1-dichloroethylene, established in 1987, was based on a toxicity study conducted in laboratory animals in the 1980s.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-08-05 | 5806-013-1156 | ND |
2014-08-05 | 5806-012-1245 | ND |
2014-08-05 | 5806-001-1130 | ND |
2014-08-05 | 5806-011-0950 | ND |
2014-08-05 | 5806-010-1340 | ND |
2014-08-05 | 5806-009-1030 | ND |
2014-08-05 | 5806-002-1056 | ND |
2014-08-05 | 5806-007-1030 | ND |
2014-08-05 | 5806-006-1320 | ND |
2014-08-05 | 5806-005-1135 | ND |
2014-09-16 | 5806-008-0908 | ND |
2015-05-05 | 5806-012-1318 | ND |
2015-05-05 | 5806-008-1243 | ND |
2015-05-05 | 5806-013-1255 | ND |
2015-05-05 | 5806-010-1319 | ND |
2015-05-05 | 5806-011-1101 | ND |
2015-05-05 | 5806-009-1028 | ND |
2015-05-05 | 5806-007-1128 | ND |
2015-05-05 | 5806-006-1302 | ND |
2015-05-05 | 5806-005-1215 | ND |
2015-05-05 | 5806-002-1157 | ND |
2015-05-05 | 5806-001-1120 | ND |
2016-02-11 | 5806-027-0940 | ND |
2016-05-03 | 5806-027-1215 | ND |
2016-05-03 | 5806-013-1240 | ND |
2016-05-03 | 5806-011-1150 | ND |
2016-05-03 | 5806-010-1301 | ND |
2016-05-03 | 5806-001-1048 | ND |
2016-05-03 | 5806-009-1101 | ND |
2016-05-03 | 5806-002-1225 | ND |
2016-05-03 | 5806-005-1210 | ND |
2016-05-03 | 5806-006-1323 | ND |
2016-05-03 | 5806-008-1300 | ND |
2016-05-03 | 5806-007-1110 | ND |
2016-05-04 | 5806-027-1302 | ND |
2016-06-07 | 5806-012-1110 | ND |
2016-08-02 | 5806-027-0858 | ND |
2016-11-08 | 5806-027-1120 | ND |
2017-02-21 | 5806-007-1030 | ND |
2017-02-21 | 5806-001-1125 | ND |
2017-02-21 | 5806-002-1125 | ND |
2017-02-21 | 5806-005-1100 | ND |
2017-02-21 | 5806-006-1308 | ND |
2017-02-21 | 5806-027-0914 | ND |
2017-02-21 | 5806-011-1145 | ND |
2017-02-21 | 5806-009-1013 | ND |
2017-02-21 | 5806-010-1250 | ND |
2017-02-21 | 5806-013-0941 | ND |
2017-02-21 | 5806-012-1245 | ND |
2017-04-24 | 5806-006-1333 | ND |
2017-07-26 | 5806-008-0800 | ND |
2018-02-06 | 5806-010-1248 | ND |
2018-05-01 | 5806-008-1130 | ND |
2019-02-12 | 5806-012-1225 | ND |
2019-02-12 | 5806-011-0841 | ND |
2019-02-12 | 5806-027-1205 | ND |
2019-02-12 | 5806-007-1005 | ND |
2019-02-12 | 5806-005-1015 | ND |
2019-02-12 | 5806-008-1150 | ND |
2019-02-12 | 5806-010-1215 | ND |
2019-02-12 | 5806-002-0950 | ND |
2019-02-12 | 5806-009-0854 | ND |
2019-02-12 | 5806-001-1021 | ND |
2019-02-12 | 5806-013-1130 | ND |