1,1-Dichloroethylene
Mountain View Mobile Estates LLC
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
115
Samples
1
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 | 1.61 ppb | 18 | 8 | ND - 7.50 ppb |
| 2019 | 1.62 ppb | 17 | 6 | ND - 6.80 ppb |
| 2020 | 1.14 ppb | 24 | 8 | ND - 6.60 ppb |
| 2021 | 1.24 ppb | 14 | 3 | ND - 6.60 ppb |
| 2022 | 1.79 ppb | 27 | 11 | ND - 6.40 ppb |
| 2023 | 0.280 ppb | 15 | 1 | ND - 4.20 ppb |
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 |
|---|---|---|
| 2018-01-16 | CA4900798_004_004-201801161040 | 1.90 ppb |
| 2018-02-08 | CA4900798_004_004-201802081530 | 1.90 ppb |
| 2018-02-08 | CA4900798_006_006-201802081535 | ND |
| 2018-02-21 | CA4900798_004_004-201802211045 | 2.20 ppb |
| 2018-02-21 | CA4900798_002_002-201802211045 | 7.50 ppb |
| 2018-03-14 | CA4900798_004_004-201803141055 | ND |
| 2018-04-25 | CA4900798_004_004-201804251230 | ND |
| 2018-05-15 | CA4900798_004_004-201805151050 | ND |
| 2018-05-15 | CA4900798_002_002-201805151050 | 6.30 ppb |
| 2018-06-04 | CA4900798_004_004-201806041200 | ND |
| 2018-07-10 | CA4900798_004_004-201807101020 | ND |
| 2018-08-15 | CA4900798_004_004-201808151030 | ND |
| 2018-08-15 | CA4900798_002_002-201808151030 | 3.90 ppb |
| 2018-09-12 | CA4900798_004_004-201809120815 | ND |
| 2018-10-03 | CA4900798_004_004-201810030955 | ND |
| 2018-11-07 | CA4900798_002_002-201811071020 | 4.60 ppb |
| 2018-11-07 | CA4900798_004_004-201811071020 | ND |
| 2018-12-12 | CA4900798_004_004-201812121010 | 0.740 ppb |
| 2019-01-02 | CA4900798_006_006-201901021210 | ND |
| 2019-01-02 | CA4900798_004_004-201901021210 | 1.20 ppb |
| 2019-01-08 | CA4900798_004_004-201901081330 | 1.40 ppb |
| 2019-02-13 | CA4900798_002_002-201902131020 | 5.40 ppb |
| 2019-02-21 | CA4900798_004_004-201902211040 | ND |
| 2019-03-06 | CA4900798_004_004-201903061015 | ND |
| 2019-04-03 | CA4900798_004_004-201904031025 | ND |
| 2019-05-08 | CA4900798_004_004-201905081045 | ND |
| 2019-05-08 | CA4900798_002_002-201905081045 | 6.30 ppb |
| 2019-06-12 | CA4900798_004_004-201906121010 | ND |
| 2019-08-14 | CA4900798_002_002-201908141005 | 6.80 ppb |
| 2019-08-14 | CA4900798_004_004-201908141000 | ND |
| 2019-09-11 | CA4900798_004_004-201909111007 | ND |
| 2019-10-02 | CA4900798_004_004-201910020945 | ND |
| 2019-11-13 | CA4900798_004_004-201911131100 | ND |
| 2019-11-13 | CA4900798_002_002-201911131100 | 6.50 ppb |
| 2019-12-11 | CA4900798_004_004-201912110954 | ND |
| 2020-01-08 | CA4900798_004_004-202001080950 | ND |
| 2020-02-10 | CA4900798_002_002-202002101110 | 4.70 ppb |
| 2020-02-10 | CA4900798_004_004-202002101110 | ND |
| 2020-03-11 | CA4900798_004_004-202003110945 | ND |
| 2020-04-07 | CA4900798_004_004-202004070955 | 0.500 ppb |
| 2020-04-24 | CA4900798_006_006-202004241110 | ND |
| 2020-04-24 | CA4900798_004_004-202004241100 | 0.860 ppb |
| 2020-05-11 | CA4900798_002_002-202005111025 | 6.40 ppb |
| 2020-05-11 | CA4900798_004_004-202005111025 | 1.000 ppb |
| 2020-05-11 | CA4900798_006_006-202005111025 | ND |
| 2020-06-03 | CA4900798_004_004-202006030955 | 1.000 ppb |
| 2020-06-03 | CA4900798_006_006-202006030955 | ND |
| 2020-07-08 | CA4900798_004_004-202007081015 | ND |
| 2020-07-08 | CA4900798_006_006-202007081020 | ND |
| 2020-08-10 | CA4900798_006_006-202008101045 | ND |
| 2020-08-10 | CA4900798_002_002-202008101045 | 6.60 ppb |
| 2020-08-10 | CA4900798_004_004-202008101045 | ND |
| 2020-09-09 | CA4900798_006_006-202009091045 | ND |
| 2020-09-09 | CA4900798_004_004-202009091045 | ND |
| 2020-10-12 | CA4900798_006_006-202010121025 | ND |
| 2020-10-12 | CA4900798_004_004-202010121025 | ND |
| 2020-11-11 | CA4900798_002_002-202011111025 | 6.30 ppb |
| 2020-11-11 | CA4900798_004_004-202011111025 | ND |
| 2020-12-09 | CA4900798_004_004-202012091040 | ND |
| 2021-01-11 | CA4900798_004_004-202101111010 | ND |
| 2021-02-03 | CA4900798_002_002-202102031000 | 5.70 ppb |
| 2021-02-03 | CA4900798_004_004-202102031000 | ND |
| 2021-03-16 | CA4900798_004_004-202103160930 | ND |
| 2021-04-07 | CA4900798_004_004-202104071020 | ND |
| 2021-05-05 | CA4900798_002_002-202105051015 | 5.00 ppb |
| 2021-05-05 | CA4900798_004_004-202105051015 | ND |
| 2021-06-09 | CA4900798_004_004-202106091026 | ND |
| 2021-07-14 | CA4900798_004_004-202107140945 | ND |
| 2021-09-13 | CA4900798_004_004-202109131000 | ND |
| 2021-10-04 | CA4900798_004_004-202110041015 | ND |
| 2021-11-10 | CA4900798_004_004-202111101016 | ND |
| 2021-11-10 | CA4900798_002_002-202111101016 | 6.60 ppb |
| 2021-12-06 | CA4900798_004_004-202112061028 | ND |
| 2022-01-10 | CA4900798_004_004-202201101026 | ND |
| 2022-02-07 | CA4900798_004_004-202202071012 | ND |
| 2022-02-07 | CA4900798_002_002-202202071012 | 4.80 ppb |
| 2022-03-02 | CA4900798_004_004-202203021005 | 5.50 ppb |
| 2022-03-16 | CA4900798_004_004-202203161450 | 1.60 ppb |
| 2022-03-16 | CA4900798_006_006-202203161450 | ND |
| 2022-04-29 | CA4900798_004_004-202204290920 | ND |
| 2022-04-29 | CA4900798_006_006-202204290920 | ND |
| 2022-05-03 | CA4900798_002_002-202205031020 | 6.40 ppb |
| 2022-05-03 | CA4900798_004_004-202205031020 | 3.40 ppb |
| 2022-05-03 | CA4900798_006_006-202205031020 | ND |
| 2022-06-07 | CA4900798_004_004-202206071058 | 2.90 ppb |
| 2022-06-07 | CA4900798_006_006-202206071058 | ND |
| 2022-07-11 | CA4900798_004_004-202207111016 | 4.40 ppb |
| 2022-07-11 | CA4900798_006_006-202207111016 | ND |
| 2022-08-09 | CA4900798_004_004-202208091033 | 3.20 ppb |
| 2022-08-09 | CA4900798_002_002-202208091033 | 6.00 ppb |
| 2022-08-09 | CA4900798_006_006-202208091033 | ND |
| 2022-09-12 | CA4900798_004_004-202209120929 | 5.00 ppb |
| 2022-09-12 | CA4900798_006_006-202209120929 | ND |
| 2022-10-31 | CA4900798_006_006-202210310930 | ND |
| 2022-10-31 | CA4900798_004_004-202210310930 | ND |
| 2022-11-09 | CA4900798_002_002-202211091450 | 5.20 ppb |
| 2022-11-09 | CA4900798_004_004-202211091450 | ND |
| 2022-11-09 | CA4900798_006_006-202211091450 | ND |
| 2022-12-06 | CA4900798_006_006-202212061250 | ND |
| 2022-12-06 | CA4900798_004_004-202212061250 | ND |
| 2023-01-11 | CA4900798_006_006-202301111300 | ND |
| 2023-01-11 | CA4900798_004_004-202301111300 | ND |
| 2023-02-28 | CA4900798_002_002-202302281150 | ND |
| 2023-02-28 | CA4900798_004_004-202302281150 | ND |
| 2023-03-15 | CA4900798_004_004-202303151115 | ND |
| 2023-04-19 | CA4900798_004_004-202304191115 | ND |
| 2023-05-24 | CA4900798_004_004-202305241000 | ND |
| 2023-05-24 | CA4900798_002_002-202305241000 | ND |
| 2023-06-14 | CA4900798_004_004-202306140900 | ND |
| 2023-07-11 | CA4900798_004_004-202307111140 | ND |
| 2023-09-05 | CA4900798_004_004-202309051600 | ND |
| 2023-10-02 | CA4900798_004_004-202310021300 | ND |
| 2023-11-14 | CA4900798_004_004-202311141540 | ND |
| 2023-11-14 | CA4900798_002_002-202311141540 | 4.20 ppb |
| 2023-12-04 | CA4900798_004_004-202312041455 | ND |