1,1,1-Trichloroethane
Yosemite Spring Park Utility Company
1,1,1-Trichloroethane is a solvent and a degreasing agent used for manufacturing metal products and as ingredient in cleaners and aerosols. Exposure to 1,1,1-trichloroethane can harm the nervous system, liver and circulatory system.
28
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 | ND | 11 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 200 ppb
The legal limit for 1,1,1-trichloroethane, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-12-10 | 5802-050-1355 | ND |
| 2014-12-10 | 5802-020-1255 | ND |
| 2014-12-10 | 5802-016-1110 | ND |
| 2014-12-10 | 5802-016-1010 | ND |
| 2014-12-10 | 5802-021-1035 | ND |
| 2014-12-10 | 5802-021-1355 | ND |
| 2014-12-10 | 5802-023-1310 | ND |
| 2014-12-10 | 5802-025-0810 | ND |
| 2014-12-10 | 5802-027-1335 | ND |
| 2014-12-10 | 5802-043-0900 | ND |
| 2014-12-31 | 5802-013-1038 | ND |
| 2015-10-28 | 5802-018-1425 | ND |
| 2015-10-28 | 5802-026-0907 | ND |
| 2015-10-28 | 5802-047-1357 | ND |
| 2016-11-23 | 5802-002-1305 | ND |
| 2016-11-23 | 5802-003-1350 | ND |
| 2017-12-06 | 5802-021-1435 | ND |
| 2017-12-06 | 5802-023-1150 | ND |
| 2017-12-06 | 5802-025-1045 | ND |
| 2017-12-06 | 5802-017-0835 | ND |
| 2017-12-13 | 5802-027-1310 | ND |
| 2017-12-13 | 5802-043-1100 | ND |
| 2017-12-13 | 5802-020-1235 | ND |
| 2017-12-13 | 5802-013-1430 | ND |
| 2018-01-10 | 5802-016-1400 | ND |
| 2018-12-19 | 5802-026-1350 | ND |
| 2018-12-26 | 5802-018-1325 | ND |
| 2019-12-20 | 5802-002-1106 | ND |