1,1,1-Trichloroethane
Milford City Public Water System
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.
57
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 | 3 | 0 | ND |
| 2015 | 0.453 ppb | 4 | 2 | ND - 1.20 ppb |
| 2016 | ND | 3 | 0 | ND |
| 2017 | 1.30 ppb | 12 | 7 | ND - 4.50 ppb |
| 2018 | 1.59 ppb | 20 | 14 | ND - 6.16 ppb |
| 2019 | 1.08 ppb | 15 | 8 | ND - 3.60 ppb |
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 |
|---|---|---|
| 2014-03-17 | 14C0806-01 | ND |
| 2014-06-30 | 14G0375-02 | ND |
| 2014-11-13 | 14K0737-04 | ND |
| 2015-04-14 | 15D0795-01 | ND |
| 2015-06-22 | 15F1450-02 | 1.20 ppb |
| 2015-09-15 | 15I0981-02 | 0.610 ppb |
| 2015-12-16 | 15L1019-02 | ND |
| 2016-01-27 | 16A1157-05 | ND |
| 2016-06-29 | 16G0063-05 | ND |
| 2016-10-11 | 16J0628-01 | ND |
| 2017-02-21 | 17B1268-05 | ND |
| 2017-05-30 | 17E1888-05 | ND |
| 2017-09-20 | 17I1616-01 | ND |
| 2017-09-20 | 17I1616-04 | 1.58 ppb |
| 2017-09-20 | 17I1616-03 | 4.46 ppb |
| 2017-09-20 | 17I1616-05 | ND |
| 2017-09-26 | 17I1708-01 | 0.900 ppb |
| 2017-12-27 | 17L1567-04 | 4.50 ppb |
| 2017-12-27 | 17L1567-02 | 2.80 ppb |
| 2017-12-27 | 17L1567-01 | 0.630 ppb |
| 2017-12-27 | 17L1567-05 | ND |
| 2017-12-27 | 17L1567-03 | 0.690 ppb |
| 2018-03-14 | 18C1037-01 | 0.930 ppb |
| 2018-03-14 | 18C1037-03 | ND |
| 2018-03-14 | 18C1037-05 | 4.19 ppb |
| 2018-03-14 | 18C1037-04 | 2.54 ppb |
| 2018-03-14 | 18C1037-02 | 1.000 ppb |
| 2018-05-03 | 18E0300-05 | 0.960 ppb |
| 2018-05-03 | 18E0300-03 | 3.07 ppb |
| 2018-05-03 | 18E0300-02 | ND |
| 2018-05-03 | 18E0300-04 | 2.80 ppb |
| 2018-05-03 | 18E0300-01 | 0.900 ppb |
| 2018-09-24 | 18I1611-05 | ND |
| 2018-09-24 | 18I1611-04 | 6.16 ppb |
| 2018-09-24 | 18I1611-02 | 0.510 ppb |
| 2018-09-24 | 18I1611-01 | 1.74 ppb |
| 2018-09-24 | 18I1611-03 | ND |
| 2018-12-18 | 523972001 | 0.770 ppb |
| 2018-12-18 | 523972002 | ND |
| 2018-12-18 | 523972005 | ND |
| 2018-12-18 | 523972004 | 3.80 ppb |
| 2018-12-18 | 523972003 | 2.40 ppb |
| 2019-03-11 | 528913003 | 2.90 ppb |
| 2019-03-11 | 528913002 | ND |
| 2019-03-11 | 528913001 | 1.80 ppb |
| 2019-03-11 | 528913004 | ND |
| 2019-03-11 | 528913005 | ND |
| 2019-04-24 | 5212496001 | ND |
| 2019-04-24 | 5212496002 | 1.10 ppb |
| 2019-04-24 | 5212496005 | ND |
| 2019-04-24 | 5212496003 | 3.10 ppb |
| 2019-04-24 | 5212496006 | ND |
| 2019-09-26 | 5224308001 | 0.550 ppb |
| 2019-09-26 | 5224308002 | 2.50 ppb |
| 2019-09-26 | 5224308004 | ND |
| 2019-09-26 | 5224308005 | 0.580 ppb |
| 2019-09-26 | 5224308003 | 3.60 ppb |