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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.

TTHM results

MS0240154 , Harrison Central High School

11 samples have been analysed for TTHM at Harrison Central High School.

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 TTHM result

The table below lists 1–10 of 11 samples, newest first — collected August 1, 2007 to March 31, 2025.

10 TTHM results from the 10 samples listed here: 10 detected, 0 not detected. Those samples also carried 24 results for other analytes, which are on the full results page.

TTHM results for Harrison Central High School, from 1 to 10 of 11 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
Mar 31, 2025 11:44
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-250401-009
Laboratory
MSDH Lab
2.57 ug/l , sample collected Mar 31, 2025 11:44, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Collected
Mar 25, 2024 13:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-240326-011
Laboratory
MSDH Lab
4.01 ug/l , sample collected Mar 25, 2024 13:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2024 – Dec 31, 2024
Collected
May 18, 2023 14:25
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-230519-003
Laboratory
MSDH Lab
8.52 ug/l , sample collected May 18, 2023 14:25, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Collected
Mar 14, 2022 14:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-220315-004
Laboratory
MSDH Lab
4.59 ug/l , sample collected Mar 14, 2022 14:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2022 – Dec 31, 2022
Collected
May 21, 2019 02:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
190522-001TH
Laboratory
MSDH Lab
4.61 ug/l , sample collected May 21, 2019 02:00, sampling point MRT000 TTHM 2950 Jan 1, 2017 – Dec 31, 2019
Collected
Aug 2, 2018 11:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
180803-001TH
Laboratory
MSDH Lab
5.36 ug/l , sample collected Aug 2, 2018 11:30, sampling point MRT000 TTHM 2950 Jan 1, 2017 – Dec 31, 2019
Collected
Sep 15, 2014 01:55
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
140916-004TH
Laboratory
MSDH Lab
2.64 ug/l , sample collected Sep 15, 2014 01:55, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2014 – Dec 31, 2016
Collected
Jul 18, 2012 02:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
120719-016TH
Laboratory
MSDH Lab
10.08 ug/l , sample collected Jul 18, 2012 02:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 10, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100611-008TH
Laboratory
MSDH Lab
12.69 ug/l , sample collected Jun 10, 2010, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2008 – Dec 31, 2010
Collected
Aug 1, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070802-008TH
Laboratory
MSDH Lab
3.61 ug/l , sample collected Aug 1, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2005 – Dec 31, 2007

Routine (10).