1,1-Dichloroethylene
Page Avenue Mutual Water Company
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
41
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 |
|---|---|---|---|---|
| 2014 | 4.73 ppb | 4 | 4 | 3.50 ppb - 5.60 ppb |
| 2015 | 5.00 ppb | 4 | 4 | 4.10 ppb - 5.80 ppb |
| 2016 | 4.66 ppb | 10 | 10 | 3.50 ppb - 5.20 ppb |
| 2017 | 5.11 ppb | 14 | 14 | 4.30 ppb - 6.00 ppb |
| 2018 | 4.06 ppb | 5 | 5 | 3.50 ppb - 5.20 ppb |
| 2019 | 3.05 ppb | 4 | 4 | 2.90 ppb - 3.20 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 |
|---|---|---|
| 2014-01-16 | 4417-001-1100 | 3.50 ppb |
| 2014-04-01 | 4417-001-1300 | 5.30 ppb |
| 2014-07-02 | 4417-001-1205 | 5.60 ppb |
| 2014-10-02 | 4417-001-1140 | 4.50 ppb |
| 2015-01-13 | 4417-001-0940 | 4.90 ppb |
| 2015-04-02 | 4417-001-1045 | 5.20 ppb |
| 2015-07-01 | 4417-001-1110 | 4.10 ppb |
| 2015-10-01 | 4417-001-1140 | 5.80 ppb |
| 2016-01-05 | 4417-001-1300 | 5.10 ppb |
| 2016-03-14 | 4417-001-0910 | 5.20 ppb |
| 2016-04-04 | 4417-001-1140 | 4.70 ppb |
| 2016-05-17 | 4417-001-1025 | 3.50 ppb |
| 2016-09-12 | 4417-001-1110 | 4.80 ppb |
| 2016-10-03 | 4417-001-1130 | 4.40 ppb |
| 2016-10-27 | 4417-001-1020 | 4.90 ppb |
| 2016-10-27 | 4417-001-1035 | 4.70 ppb |
| 2016-11-16 | 4417-001-1220 | 4.60 ppb |
| 2016-12-05 | 4417-001-1045 | 4.70 ppb |
| 2017-01-04 | 4417-001-1140 | 5.20 ppb |
| 2017-02-02 | 4417-001-0950 | 5.60 ppb |
| 2017-03-07 | 4417-001-0930 | 4.30 ppb |
| 2017-03-13 | 4417-001-1035 | 4.80 ppb |
| 2017-03-28 | 4417-001-1010 | 5.30 ppb |
| 2017-04-06 | 4417-001-1115 | 4.40 ppb |
| 2017-05-04 | 4417-001-1240 | 5.80 ppb |
| 2017-06-05 | 4417-001-1100 | 5.30 ppb |
| 2017-07-06 | 4417-001-1135 | 5.00 ppb |
| 2017-08-08 | 4417-001-1100 | 6.00 ppb |
| 2017-08-23 | 4417-001-1120 | 5.10 ppb |
| 2017-08-23 | 4417-001-1105 | 5.40 ppb |
| 2017-09-07 | 4417-001-0845 | 4.60 ppb |
| 2017-10-03 | 4417-001-1040 | 4.70 ppb |
| 2018-01-03 | 4417-001-1120 | 5.20 ppb |
| 2018-04-11 | 4417-001-1330 | 3.90 ppb |
| 2018-05-07 | 4417-001-0920 | 3.60 ppb |
| 2018-07-03 | 4417-001-1110 | 4.10 ppb |
| 2018-10-01 | 4417-001-1220 | 3.50 ppb |
| 2019-01-08 | 4417-001-1210 | 2.90 ppb |
| 2019-04-01 | 4417-001-0925 | 3.00 ppb |
| 2019-07-01 | 4417-001-1045 | 3.10 ppb |
| 2019-10-02 | 4417-001-1100 | 3.20 ppb |