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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.

1,2,4-Trichlorobenzene results

MS0620004 , High Hill Water Association

5 samples have been analysed for 1,2,4-Trichlorobenzene at High Hill 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.

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

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Every 1,2,4-Trichlorobenzene result

The 5 samples analysed for this analyte collected between September 25, 2024 and September 25, 2026 are listed below, newest first.

5 1,2,4-Trichlorobenzene results from the 5 samples listed here: 0 detected, 5 not detected. Those samples also carried 104 results for other analytes, which are on the full results page.

1,2,4-Trichlorobenzene results for High Hill Water Association, from the 5 samples 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
Jul 13, 2026
Sampling point
TF103 Treatment Facility 103
Sample type
Routine
Lab sample
35050846003
Laboratory
Pace Analytical Services, LLC
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 13, 2026, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2026 – Dec 31, 2026
Collected
Jul 13, 2026
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
35050846002
Laboratory
Pace Analytical Services, LLC
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 13, 2026, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Collected
Jul 13, 2026
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
35050846001
Laboratory
Pace Analytical Services, LLC
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 13, 2026, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2026 – Dec 31, 2026
Collected
Mar 11, 2025 13:30
Sampling point
TF103 Treatment Facility 103
Sample type
Routine
Lab sample
VO-250312-012
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 11, 2025 13:30, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Collected
Oct 17, 2024 07:00
Sampling point
TF103 Treatment Facility 103
Sample type
Routine
Lab sample
VO-241018-001
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 17, 2024 07:00, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Not recorded

Routine (5).