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This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.

1,1,1-Trichloroethane results

MS0610030 , Union Water Association

42 samples have been analysed for 1,1,1-Trichloroethane at Union Water Association.

This is one analyte out of the system’s whole record. For what has ever been detected here, and when, see all chemical and radiological results; for everything the system is tested for, see the analyte list.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

No date range is applied: this list draws on every sample on record. Show the last two years only.

Every 1,1,1-Trichloroethane result

The table below lists 1–10 of 42 samples, newest first — collected November 14, 2017 to December 16, 2025.

10 1,1,1-Trichloroethane results from the 10 samples listed here: 0 detected, 10 not detected. Those samples also carried 200 results for other analytes, which are on the full results page.

1,1,1-Trichloroethane results for Union Water Association, from 1 to 10 of 42 samples shown analysed for it, newest first. This view leaves out other analytes on the same samples. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Dec 16, 2025 13:45
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
VO-251217-001
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 16, 2025 13:45, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2025 – Dec 31, 2027
Collected
Mar 13, 2024 09:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
VO-240314-001
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 13, 2024 09:00, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2019 – Dec 31, 2024
Collected
Sep 19, 2022 10:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
VO-220920-001
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 19, 2022 10:30, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Collected
Sep 19, 2022 10:25
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
VO-220920-002
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 19, 2022 10:25, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Collected
Oct 5, 2021 12:45
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
VO-211006-002
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 5, 2021 12:45, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Collected
Dec 2, 2020 08:30
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
201203-006VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 2, 2020 08:30, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Collected
Jul 23, 2019 13:00
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
190724-014VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2019 13:00, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Collected
Dec 28, 2018 09:56
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
181228-004VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 28, 2018 09:56, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Collected
Sep 11, 2018 12:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
180912-005VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 11, 2018 12:30, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2013 – Dec 31, 2018
Collected
Nov 14, 2017 12:30
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
171115-001VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 14, 2017 12:30, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Oct 1, 2017 – Dec 31, 2017

Routine (10).