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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

MS0490018 , Hays Creek W/A-Legion Lake Rd

11 samples have been analysed for TTHM at Hays Creek W/A-Legion Lake Rd.

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 June 13, 2007 to April 30, 2025.

10 TTHM results from the 10 samples listed here: 9 detected, 1 not detected. Those samples also carried 28 results for other analytes, which are on the full results page.

We withheld the location of 1 sampling point below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

TTHM results for Hays Creek W/A-Legion Lake Rd, 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
Apr 30, 2025 10:30
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
TH-250501-016
Laboratory
MSDH Lab
15.5 ug/l , sample collected Apr 30, 2025 10:30, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2025 – Dec 31, 2027
Collected
Oct 17, 2022 11:25
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
TH-221018-030
Laboratory
MSDH Lab
4.07 ug/l , sample collected Oct 17, 2022 11:25, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Collected
Aug 16, 2021 11:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-210817-014
Laboratory
MSDH Lab
3.03 ug/l , sample collected Aug 16, 2021 11:05, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2019 – Dec 31, 2021
Collected
Aug 22, 2017 12:39
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
170823-005TH
Laboratory
MSDH Lab
6.4 ug/l , sample collected Aug 22, 2017 12:39, sampling point MRT000 TTHM 2950 Jan 1, 2016 – Dec 31, 2018
Collected
Aug 4, 2014 11:32
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
140805-036TH
Laboratory
MSDH Lab
7.85 ug/l , sample collected Aug 4, 2014 11:32, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2013 – Dec 31, 2015
Collected
Aug 4, 2014 11:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
140805-033TH
Laboratory
MSDH Lab
Not detected below 4 ug/l Minimum Reporting Level , sample collected Aug 4, 2014 11:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2013 – Dec 31, 2015
Collected
Jun 27, 2011 02:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
110628-016TH
Laboratory
MSDH Lab
5.11 ug/l , sample collected Jun 27, 2011 02:05, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2010 – Dec 31, 2012
Collected
Aug 24, 2009
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
090825-018TH
Laboratory
MSDH Lab
6.93 ug/l , sample collected Aug 24, 2009, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Collected
Jul 8, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080709-006TH
Laboratory
MSDH Lab
6.24 ug/l , sample collected Jul 8, 2008, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2008 – Dec 31, 2008
Collected
Jun 13, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070614-006TH
Laboratory
MSDH Lab
4.75 ug/l , sample collected Jun 13, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007

Routine (10).