cis-1,2-Dichloroethylene
Garfield 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.
83
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 6.94 ppb | 16 | 13 | ND - 11.4 ppb |
| 2015 | 3.81 ppb | 15 | 7 | ND - 10.6 ppb |
| 2016 | 4.84 ppb | 18 | 11 | ND - 12.1 ppb |
| 2017 | 0.603 ppb | 9 | 6 | ND - 1.50 ppb |
| 2018 | 0.545 ppb | 13 | 5 | ND - 1.80 ppb |
| 2019 | 1.26 ppb | 12 | 8 | ND - 5.47 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 |
|---|---|---|
| 2014-01-21 | AB46229HZ | 11.0 ppb |
| 2014-01-21 | AB46230HZ | ND |
| 2014-02-20 | AB47523HZ | 9.25 ppb |
| 2014-03-19 | AB48621HZ | 11.4 ppb |
| 2014-04-15 | AB49727HZ | 9.10 ppb |
| 2014-04-15 | AB49728HZ | ND |
| 2014-05-13 | AB50732HZ | 9.52 ppb |
| 2014-06-10 | AB51911HZ | 9.02 ppb |
| 2014-07-15 | AB53423HZ | 8.44 ppb |
| 2014-07-15 | AB53424HZ | 0.730 ppb |
| 2014-08-19 | L5210780-2 | 9.15 ppb |
| 2014-09-15 | L5250967-1 | 8.23 ppb |
| 2014-10-21 | AB57426HZ | 8.82 ppb |
| 2014-10-21 | AB57427HZ | ND |
| 2014-11-12 | AB58282HZ | 8.13 ppb |
| 2014-12-09 | AB59404HZ | 8.25 ppb |
| 2015-01-21 | AB60972HZ | ND |
| 2015-01-21 | AB60971HZ | 9.56 ppb |
| 2015-02-24 | AB62244HZ | 9.42 ppb |
| 2015-03-17 | AB63206HZ | 9.96 ppb |
| 2015-04-21 | AB64574HZ | 0.560 ppb |
| 2015-04-21 | AB64573HZ | 9.29 ppb |
| 2015-06-09 | AB66698HZ | ND |
| 2015-06-23 | AB67401HZ | ND |
| 2015-08-06 | AB69499HZ | ND |
| 2015-08-06 | AB69500HZ | ND |
| 2015-08-06 | AB69498HZ | 10.6 ppb |
| 2015-09-22 | AB71495HZ | ND |
| 2015-10-20 | AB72632HZ | 7.82 ppb |
| 2015-10-20 | AB72633HZ | ND |
| 2015-10-20 | AB72634HZ | ND |
| 2016-01-12 | AB75855HZ | 9.86 ppb |
| 2016-01-12 | AB75856HZ | ND |
| 2016-01-12 | AB75854HZ | 1.01 ppb |
| 2016-01-26 | AB76459HZ | 1.04 ppb |
| 2016-02-16 | AB77202HZ | 0.830 ppb |
| 2016-04-12 | AB79639HZ | 10.1 ppb |
| 2016-04-12 | AB79640HZ | ND |
| 2016-04-12 | AB79638HZ | ND |
| 2016-07-12 | AB83719HZ | 12.1 ppb |
| 2016-07-12 | AB83718HZ | ND |
| 2016-07-12 | AB83720HZ | ND |
| 2016-08-18 | AB85462HZ | 8.20 ppb |
| 2016-09-13 | AB86447HZ | 11.9 ppb |
| 2016-10-11 | AB87765HZ | ND |
| 2016-10-11 | AB87764HZ | 11.9 ppb |
| 2016-10-11 | AB87763HZ | ND |
| 2016-11-22 | AB89699HZ | 10.5 ppb |
| 2016-12-13 | AB90445HZ | 9.75 ppb |
| 2017-01-10 | AB91459HZ | ND |
| 2017-01-10 | AB91460HZ | ND |
| 2017-04-11 | AB95109HZ | 0.500 ppb |
| 2017-04-11 | AB95110HZ | ND |
| 2017-07-11 | AB98675HZ | 0.970 ppb |
| 2017-07-11 | AB98674HZ | 0.600 ppb |
| 2017-10-10 | AC02410HZ | 0.570 ppb |
| 2017-10-10 | AC02407HZ | 1.29 ppb |
| 2017-12-12 | AC04918HZ | 1.50 ppb |
| 2018-01-09 | AC05949HZ | ND |
| 2018-01-09 | AC05950HZ | 1.67 ppb |
| 2018-04-10 | JC64163-2 | 0.810 ppb |
| 2018-04-10 | JC64163-1 | 1.80 ppb |
| 2018-05-09 | AC10706HZ | 1.71 ppb |
| 2018-07-17 | AC13548HZ | ND |
| 2018-07-17 | AC13545HZ | ND |
| 2018-08-03 | AC14315HZ | ND |
| 2018-09-18 | AC16305HZ | ND |
| 2018-10-04 | AC17147HZ | 1.10 ppb |
| 2018-10-04 | AC17143HZ | ND |
| 2018-11-09 | AC18616HZ | ND |
| 2018-12-11 | AC19842HZ | ND |
| 2019-01-08 | AC20865HZ | ND |
| 2019-01-08 | AC20869HZ | 0.940 ppb |
| 2019-02-11 | AC22466HZ | ND |
| 2019-04-02 | AC24607HZ | 0.540 ppb |
| 2019-04-02 | AC24608HZ | ND |
| 2019-04-02 | AC24609HZ | 1.66 ppb |
| 2019-07-12 | AC29239HZ | 0.580 ppb |
| 2019-07-12 | AC29243HZ | 1.30 ppb |
| 2019-07-12 | AC29242HZ | 2.60 ppb |
| 2019-10-02 | AC33249HZ | ND |
| 2019-10-02 | AC33253HZ | 2.07 ppb |
| 2019-10-02 | AC33251HZ | 5.47 ppb |