trans-1,2-Dichloroethylene
Waterville Fire District 1
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 | 11 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 35 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 60 ppb
The EWG Health Guideline of 60 ppb for trans-1,2-dichloroethylene was defined 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. This health guideline protects against harm to internal organs.
EPA Maximum Contaminant
Level (MCL) 100 ppb
The legal limit for trans-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 |
---|---|---|
2014-05-13 | 14V00186 | ND |
2014-07-09 | 15V00005 | ND |
2014-09-30 | SB97478-09 | ND |
2014-09-30 | SB97478-08 | ND |
2014-09-30 | SB97478-07 | ND |
2014-09-30 | SB97478-06 | ND |
2014-09-30 | SB97478-05 | ND |
2014-09-30 | SB97478-04 | ND |
2014-09-30 | SB97478-03 | ND |
2014-09-30 | SB97478-01 | ND |
2014-11-12 | 15V00134 | ND |
2015-03-05 | 15V00177 | ND |
2015-04-20 | 15V00191 | ND |
2015-07-07 | 16V00004 | ND |
2015-10-29 | 16V00063 | ND |
2016-02-22 | 16V00099 | ND |
2016-05-24 | 16V00136 | ND |
2016-06-23 | SC22991-22 | ND |
2016-06-23 | SC22991-20 | ND |
2016-06-23 | SC22991-19 | ND |
2016-06-23 | SC22991-18 | ND |
2016-06-23 | SC22991-17 | ND |
2016-06-23 | SC22991-16 | ND |
2016-06-23 | SC22991-15 | ND |
2016-06-23 | SC22991-14 | ND |
2016-06-23 | SC22991-13 | ND |
2016-06-23 | SC22991-12 | ND |
2016-09-16 | SC26197-07 | ND |
2016-09-19 | SC26197-10 | ND |
2016-09-19 | SC26197-09 | ND |
2016-09-19 | SC26197-06 | ND |
2016-09-19 | SC26197-05 | ND |
2016-09-19 | SC26197-04 | ND |
2016-09-19 | SC26197-03 | ND |
2016-09-19 | SC26197-02 | ND |
2016-09-19 | SC26197-01 | ND |
2016-10-28 | 17V00052 | ND |
2016-12-15 | SC29638-10 | ND |
2016-12-15 | SC29638-01 | ND |
2016-12-15 | SC29638-02 | ND |
2016-12-15 | SC29638-04 | ND |
2016-12-15 | SC29638-05 | ND |
2016-12-15 | SC29638-06 | ND |
2016-12-15 | SC29638-07 | ND |
2016-12-15 | SC29638-08 | ND |
2016-12-15 | SC29638-09 | ND |
2016-12-15 | SC29638-11 | ND |
2016-12-15 | SC29638-12 | ND |
2016-12-15 | SC29638-13 | ND |
2016-12-21 | 17V00066 | ND |
2017-01-16 | 1701-01291-004 | ND |
2017-01-16 | 1701-01291-001 | ND |
2017-05-16 | 1705-10340-002 | ND |
2017-05-16 | 1705-10340-001 | ND |
2018-06-27 | 1806-15203-001 | ND |