1,1-Dichloroethylene
East Pasadena Water Company
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
182
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 69 | 0 | ND |
| 2019 | ND | 66 | 0 | ND |
| 2020 | ND | 39 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-01-02 | CA1910020_006_006-201801020840 | ND |
| 2018-01-08 | CA1910020_006_006-201801080840 | ND |
| 2018-01-15 | CA1910020_007_007-201801150830 | ND |
| 2018-01-15 | CA1910020_006_006-201801150835 | ND |
| 2018-01-22 | CA1910020_006_006-201801220830 | ND |
| 2018-01-29 | CA1910020_006_006-201801290820 | ND |
| 2018-02-06 | CA1910020_006_006-201802060810 | ND |
| 2018-02-12 | CA1910020_006_006-201802120840 | ND |
| 2018-02-20 | CA1910020_006_006-201802200840 | ND |
| 2018-02-20 | CA1910020_007_007-201802200840 | ND |
| 2018-02-26 | CA1910020_006_006-201802260825 | ND |
| 2018-03-05 | CA1910020_006_006-201803050825 | ND |
| 2018-03-12 | CA1910020_006_006-201803120835 | ND |
| 2018-03-19 | CA1910020_005_005-201803190940 | ND |
| 2018-03-19 | CA1910020_007_007-201803190830 | ND |
| 2018-03-19 | CA1910020_012_012-201803190855 | ND |
| 2018-03-19 | CA1910020_006_006-201803190830 | ND |
| 2018-03-26 | CA1910020_006_006-201803260835 | ND |
| 2018-04-02 | CA1910020_006_006-201804020830 | ND |
| 2018-04-09 | CA1910020_006_006-201804090810 | ND |
| 2018-04-11 | CA1910020_012_012-201804111035 | ND |
| 2018-04-16 | CA1910020_006_006-201804160825 | ND |
| 2018-04-16 | CA1910020_007_007-201804160825 | ND |
| 2018-04-23 | CA1910020_006_006-201804230821 | ND |
| 2018-04-30 | CA1910020_006_006-201804300840 | ND |
| 2018-05-07 | CA1910020_006_006-201805070820 | ND |
| 2018-05-14 | CA1910020_006_006-201805140855 | ND |
| 2018-05-22 | CA1910020_006_006-201805220820 | ND |
| 2018-05-22 | CA1910020_007_007-201805220820 | ND |
| 2018-05-29 | CA1910020_006_006-201805290930 | ND |
| 2018-06-04 | CA1910020_006_006-201806040815 | ND |
| 2018-06-11 | CA1910020_006_006-201806110835 | ND |
| 2018-06-18 | CA1910020_006_006-201806180825 | ND |
| 2018-06-18 | CA1910020_007_007-201806180815 | ND |
| 2018-06-25 | CA1910020_006_006-201806250900 | ND |
| 2018-07-02 | CA1910020_006_006-201807020830 | ND |
| 2018-07-09 | CA1910020_006_006-201807091023 | ND |
| 2018-07-12 | CA1910020_005_005-201807121035 | ND |
| 2018-07-16 | CA1910020_006_006-201807160915 | ND |
| 2018-07-23 | CA1910020_007_007-201807230830 | ND |
| 2018-07-23 | CA1910020_006_006-201807230830 | ND |
| 2018-07-30 | CA1910020_006_006-201807300825 | ND |
| 2018-08-06 | CA1910020_006_006-201808060835 | ND |
| 2018-08-13 | CA1910020_006_006-201808130905 | ND |
| 2018-08-20 | CA1910020_006_006-201808200950 | ND |
| 2018-08-20 | CA1910020_007_007-201808200945 | ND |
| 2018-08-27 | CA1910020_006_006-201808270945 | ND |
| 2018-09-04 | CA1910020_006_006-201809040845 | ND |
| 2018-09-10 | CA1910020_006_006-201809100823 | ND |
| 2018-09-17 | CA1910020_006_006-201809170800 | ND |
| 2018-09-17 | CA1910020_007_007-201809170805 | ND |
| 2018-09-24 | CA1910020_006_006-201809240910 | ND |
| 2018-10-01 | CA1910020_006_006-201810010940 | ND |
| 2018-10-08 | CA1910020_006_006-201810080915 | ND |
| 2018-10-15 | CA1910020_006_006-201810150915 | ND |
| 2018-10-22 | CA1910020_006_006-201810220830 | ND |
| 2018-10-22 | CA1910020_007_007-201810220830 | ND |
| 2018-10-29 | CA1910020_006_006-201810290915 | ND |
| 2018-11-05 | CA1910020_006_006-201811050820 | ND |
| 2018-11-13 | CA1910020_006_006-201811130850 | ND |
| 2018-11-13 | CA1910020_007_007-201811130847 | ND |
| 2018-11-19 | CA1910020_006_006-201811190810 | ND |
| 2018-11-26 | CA1910020_006_006-201811260840 | ND |
| 2018-12-03 | CA1910020_006_006-201812030840 | ND |
| 2018-12-10 | CA1910020_006_006-201812100830 | ND |
| 2018-12-17 | CA1910020_007_007-201812170735 | ND |
| 2018-12-17 | CA1910020_006_006-201812170730 | ND |
| 2018-12-26 | CA1910020_006_006-201812260810 | ND |
| 2018-12-31 | CA1910020_006_006-201812310835 | ND |
| 2019-01-07 | CA1910020_006_006-201901070850 | ND |
| 2019-01-14 | CA1910020_006_006-201901141040 | ND |
| 2019-01-22 | CA1910020_006_006-201901220755 | ND |
| 2019-01-22 | CA1910020_007_007-201901220800 | ND |
| 2019-01-28 | CA1910020_006_006-201901280819 | ND |
| 2019-02-04 | CA1910020_006_006-201902040845 | ND |
| 2019-02-11 | CA1910020_006_006-201902110830 | ND |
| 2019-02-19 | CA1910020_006_006-201902190835 | ND |
| 2019-02-19 | CA1910020_007_007-201902190840 | ND |
| 2019-02-25 | CA1910020_006_006-201902250824 | ND |
| 2019-03-04 | CA1910020_006_006-201903040825 | ND |
| 2019-03-11 | CA1910020_006_006-201903110815 | ND |
| 2019-03-11 | CA1910020_007_007-201903110813 | ND |
| 2019-03-18 | CA1910020_006_006-201903180830 | ND |
| 2019-03-25 | CA1910020_006_006-201903250815 | ND |
| 2019-04-01 | CA1910020_006_006-201904010826 | ND |
| 2019-04-03 | CA1910020_012_012-201904031000 | ND |
| 2019-04-08 | CA1910020_006_006-201904080830 | ND |
| 2019-04-15 | CA1910020_006_006-201904150917 | ND |
| 2019-04-15 | CA1910020_007_007-201904150900 | ND |
| 2019-04-22 | CA1910020_006_006-201904220838 | ND |
| 2019-04-29 | CA1910020_006_006-201904290920 | ND |
| 2019-05-06 | CA1910020_006_006-201905060840 | ND |
| 2019-05-13 | CA1910020_006_006-201905130850 | ND |
| 2019-05-13 | CA1910020_007_007-201905130847 | ND |
| 2019-05-20 | CA1910020_006_006-201905200828 | ND |
| 2019-05-28 | CA1910020_006_006-201905280847 | ND |
| 2019-06-03 | CA1910020_006_006-201906030833 | ND |
| 2019-06-10 | CA1910020_006_006-201906100850 | ND |
| 2019-06-17 | CA1910020_006_006-201906170901 | ND |
| 2019-06-17 | CA1910020_007_007-201906170900 | ND |
| 2019-06-24 | CA1910020_006_006-201906240834 | ND |
| 2019-07-01 | CA1910020_006_006-201907010828 | ND |
| 2019-07-08 | CA1910020_006_006-201907080900 | ND |
| 2019-07-15 | CA1910020_006_006-201907150832 | ND |
| 2019-07-15 | CA1910020_007_007-201907150830 | ND |
| 2019-07-22 | CA1910020_006_006-201907220853 | ND |
| 2019-07-29 | CA1910020_005_005-201907291225 | ND |
| 2019-07-29 | CA1910020_006_006-201907290843 | ND |
| 2019-08-05 | CA1910020_006_006-201908050900 | ND |
| 2019-08-12 | CA1910020_006_006-201908120825 | ND |
| 2019-08-12 | CA1910020_007_007-201908120823 | ND |
| 2019-08-19 | CA1910020_006_006-201908190820 | ND |
| 2019-08-26 | CA1910020_006_006-201908260820 | ND |
| 2019-09-03 | CA1910020_006_006-201909030840 | ND |
| 2019-09-09 | CA1910020_006_006-201909090958 | ND |
| 2019-09-16 | CA1910020_006_006-201909160830 | ND |
| 2019-09-16 | CA1910020_007_007-201909160825 | ND |
| 2019-09-23 | CA1910020_006_006-201909230825 | ND |
| 2019-09-30 | CA1910020_006_006-201909300835 | ND |
| 2019-10-07 | CA1910020_006_006-201910070842 | ND |
| 2019-10-14 | CA1910020_007_007-201910140745 | ND |
| 2019-10-14 | CA1910020_006_006-201910140750 | ND |
| 2019-10-21 | CA1910020_006_006-201910210828 | ND |
| 2019-10-28 | CA1910020_006_006-201910280900 | ND |
| 2019-11-04 | CA1910020_006_006-201911040825 | ND |
| 2019-11-12 | CA1910020_006_006-201911120705 | ND |
| 2019-11-18 | CA1910020_006_006-201911180825 | ND |
| 2019-11-18 | CA1910020_007_007-201911180827 | ND |
| 2019-11-25 | CA1910020_006_006-201911250815 | ND |
| 2019-12-02 | CA1910020_006_006-201912020825 | ND |
| 2019-12-09 | CA1910020_006_006-201912090825 | ND |
| 2019-12-16 | CA1910020_006_006-201912160828 | ND |
| 2019-12-16 | CA1910020_007_007-201912160828 | ND |
| 2019-12-23 | CA1910020_006_006-201912230710 | ND |
| 2019-12-30 | CA1910020_006_006-201912300725 | ND |
| 2020-01-06 | CA1910020_006_006-202001060920 | ND |
| 2020-01-13 | CA1910020_007_007-202001130835 | ND |
| 2020-01-13 | CA1910020_006_006-202001130835 | ND |
| 2020-01-21 | CA1910020_006_006-202001210840 | ND |
| 2020-01-27 | CA1910020_006_006-202001270815 | ND |
| 2020-02-03 | CA1910020_006_006-202002030850 | ND |
| 2020-02-10 | CA1910020_007_007-202002100830 | ND |
| 2020-02-10 | CA1910020_006_006-202002100837 | ND |
| 2020-02-18 | CA1910020_006_006-202002180850 | ND |
| 2020-02-24 | CA1910020_006_006-202002240830 | ND |
| 2020-03-02 | CA1910020_006_006-202003020905 | ND |
| 2020-03-09 | CA1910020_006_006-202003090840 | ND |
| 2020-03-09 | CA1910020_007_007-202003090840 | ND |
| 2020-03-16 | CA1910020_006_006-202003160825 | ND |
| 2020-03-23 | CA1910020_006_006-202003230920 | ND |
| 2020-03-30 | CA1910020_006_006-202003301045 | ND |
| 2020-04-02 | CA1910020_012_012-202004021030 | ND |
| 2020-04-06 | CA1910020_006_006-202004061015 | ND |
| 2020-04-13 | CA1910020_006_006-202004130830 | ND |
| 2020-04-20 | CA1910020_006_006-202004201040 | ND |
| 2020-04-27 | CA1910020_006_006-202004270950 | ND |
| 2020-05-04 | CA1910020_006_006-202005040825 | ND |
| 2020-05-11 | CA1910020_007_007-202005110906 | ND |
| 2020-05-11 | CA1910020_006_006-202005110856 | ND |
| 2020-05-18 | CA1910020_006_006-202005180855 | ND |
| 2020-05-26 | CA1910020_006_006-202005260818 | ND |
| 2020-06-02 | CA1910020_006_006-202006020850 | ND |
| 2020-06-08 | CA1910020_007_007-202006080848 | ND |
| 2020-06-08 | CA1910020_006_006-202006080848 | ND |
| 2020-06-15 | CA1910020_006_006-202006150824 | ND |
| 2020-06-22 | CA1910020_006_006-202006220840 | ND |
| 2020-06-29 | CA1910020_006_006-202006290819 | ND |
| 2020-07-06 | CA1910020_006_006-202007060910 | ND |
| 2020-07-09 | CA1910020_005_005-202007091040 | ND |
| 2020-07-13 | CA1910020_007_007-202007130815 | ND |
| 2020-07-13 | CA1910020_006_006-202007130810 | ND |
| 2020-07-20 | CA1910020_006_006-202007200923 | ND |
| 2020-07-27 | CA1910020_006_006-202007270945 | ND |
| 2020-08-03 | CA1910020_006_006-202008030745 | ND |
| 2021-03-08 | CA1910020_012_012-202103080845 | ND |
| 2021-03-08 | CA1910020_005_005-202103080910 | ND |
| 2021-04-12 | CA1910020_012_012-202104121010 | ND |
| 2021-07-13 | CA1910020_005_005-202107131115 | ND |
| 2022-04-20 | CA1910020_012_012-202204201155 | ND |
| 2022-08-09 | CA1910020_005_005-202208091125 | ND |
| 2023-05-10 | CA1910020_012_012-202305101055 | ND |
| 2023-08-16 | CA1910020_005_005-202308161040 | ND |