1,1-Dichloroethylene
City of Idalou
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
46
Samples
16
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 11.3 ppb | 5 | 4 | ND - 15.9 ppb |
| 2015 | 4.10 ppb | 13 | 8 | ND - 15.0 ppb |
| 2016 | 3.83 ppb | 7 | 4 | ND - 10.7 ppb |
| 2017 | 3.34 ppb | 7 | 5 | ND - 8.63 ppb |
| 2018 | 5.12 ppb | 7 | 6 | ND - 15.6 ppb |
| 2019 | 8.21 ppb | 7 | 5 | ND - 17.4 ppb |
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 |
|---|---|---|
| 2014-03-13 | Q1408243010 | 14.2 ppb |
| 2014-06-17 | Q1421629004 | ND |
| 2014-06-17 | Q1421629006 | 13.2 ppb |
| 2014-09-18 | Q1445932006 | 13.4 ppb |
| 2014-12-16 | Q1460431001 | 15.9 ppb |
| 2015-03-25 | Q1511064012 | ND |
| 2015-03-25 | Q1511064010 | 0.620 ppb |
| 2015-03-25 | Q1511064008 | 1.43 ppb |
| 2015-03-25 | Q1511064002 | 14.0 ppb |
| 2015-06-23 | Q1523309001 | 4.63 ppb |
| 2015-09-09 | Q1534947007 | ND |
| 2015-09-09 | Q1534947001 | 15.0 ppb |
| 2015-09-09 | Q1534947004 | 1.43 ppb |
| 2015-09-09 | Q1534947005 | ND |
| 2015-11-18 | Q1545682007 | ND |
| 2015-11-18 | Q1545682006 | ND |
| 2015-11-18 | Q1545682003 | 1.23 ppb |
| 2015-11-18 | Q1545682002 | 15.0 ppb |
| 2016-03-08 | Q1609690004 | ND |
| 2016-03-08 | Q1609690002 | 2.36 ppb |
| 2016-06-08 | Q1622881004 | 10.7 ppb |
| 2016-06-08 | Q1622881002 | ND |
| 2016-09-08 | Q1636371004 | 7.02 ppb |
| 2016-09-08 | Q1636371001 | ND |
| 2016-12-13 | Q1654189002 | 6.73 ppb |
| 2017-03-14 | Q1710443001 | 8.63 ppb |
| 2017-06-07 | Q1724059002 | 3.42 ppb |
| 2017-07-25 | Q1730586001 | 2.53 ppb |
| 2017-07-25 | Q1730586009 | 1.42 ppb |
| 2017-10-12 | Q1752321004 | 7.41 ppb |
| 2017-10-12 | Q1752321003 | ND |
| 2017-10-25 | Q1755075001 | ND |
| 2018-03-21 | Q1811486005 | 3.77 ppb |
| 2018-03-21 | Q1811486001 | 3.01 ppb |
| 2018-04-26 | Q1816940004 | 6.74 ppb |
| 2018-04-26 | Q1816940005 | 2.76 ppb |
| 2018-08-02 | Q1830692001 | 3.95 ppb |
| 2018-10-25 | Q1842795003 | ND |
| 2018-11-29 | Q1848727002 | 15.6 ppb |
| 2019-01-30 | Q1904476005 | 17.4 ppb |
| 2019-04-10 | Q1914418007 | 13.8 ppb |
| 2019-04-10 | Q1914418004 | ND |
| 2019-04-10 | Q1914418002 | ND |
| 2019-09-11 | Q1963950002 | 13.2 ppb |
| 2019-09-11 | Q1963950005 | 1.07 ppb |
| 2019-10-31 | Q1974682001 | 12.0 ppb |