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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

MS0180022 , S MS Public Water Auth-Rock Hill

45 samples have been analysed for TTHM at S MS Public Water Auth-Rock Hill.

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 45 samples, newest first — collected December 18, 2023 to August 4, 2025.

10 TTHM results from the 10 samples listed here: 9 detected, 1 not detected. Those samples also carried 74 results for other analytes, which are on the full results page.

We withheld the location of 4 sampling points 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 The location on record identifies a private home, and we do not publish those.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 S MS Public Water Auth-Rock Hill, from 1 to 10 of 45 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
Aug 4, 2025 12:00
Sampling point
SM4 Location withheld
Sample type
Routine
Lab sample
810-158369-1
Laboratory
Eurofins Eaton Analytical South Bend in
36.87 ug/l , sample collected Aug 4, 2025 12:00, sampling point SM4 TTHM 2950 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Collected
Aug 6, 2024 12:10
Sampling point
SM4 Location withheld
Sample type
Routine
Lab sample
810-114627-2
Laboratory
Eurofins Eaton Analytical South Bend in
31.45 ug/l , sample collected Aug 6, 2024 12:10, sampling point SM4 TTHM 2950 EPA method 524.2 Jul 1, 2024 – Sep 30, 2024
Collected
Aug 6, 2024 11:50
Sampling point
SM3 Location withheld
Sample type
Routine
Lab sample
810-114627-1
Laboratory
Eurofins Eaton Analytical South Bend in
31.35 ug/l , sample collected Aug 6, 2024 11:50, sampling point SM3 TTHM 2950 EPA method 524.2 Jul 1, 2024 – Sep 30, 2024
Collected
May 14, 2024 12:10
Sampling point
SM4 Location withheld
Sample type
Routine
Lab sample
810-104592-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2024 12:10, sampling point SM4 TTHM 2950 EPA method 524.2 Apr 1, 2024 – Jun 30, 2024
Collected
May 14, 2024 11:45
Sampling point
SM3 Location withheld
Sample type
Routine
Lab sample
810-104592-1
Laboratory
Eurofins Eaton Analytical South Bend in
16.59 ug/l , sample collected May 14, 2024 11:45, sampling point SM3 TTHM 2950 EPA method 524.2 Apr 1, 2024 – Jun 30, 2024
Collected
Mar 19, 2024 11:35
Sampling point
SMT Location withheld
Sample type
Routine
Lab sample
TH-240320-006
Laboratory
MSDH Lab
3.97 ug/l , sample collected Mar 19, 2024 11:35, sampling point SMT TTHM 2950 EPA method 524.2 Jan 1, 2024 – Dec 31, 2024
Collected
Mar 19, 2024 11:55
Sampling point
SMH Location withheld
Sample type
Routine
Lab sample
TH-240320-005
Laboratory
MSDH Lab
4.24 ug/l , sample collected Mar 19, 2024 11:55, sampling point SMH TTHM 2950 EPA method 524.2 Jan 1, 2024 – Dec 31, 2024
Collected
Feb 21, 2024 13:10
Sampling point
SM4 Location withheld
Sample type
Routine
Lab sample
810-94828-2
Laboratory
Eurofins Eaton Analytical South Bend in
7.3 ug/l , sample collected Feb 21, 2024 13:10, sampling point SM4 TTHM 2950 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Collected
Feb 21, 2024 13:35
Sampling point
SM3 Location withheld
Sample type
Routine
Lab sample
810-94828-1
Laboratory
Eurofins Eaton Analytical South Bend in
5.3 ug/l , sample collected Feb 21, 2024 13:35, sampling point SM3 TTHM 2950 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Collected
Dec 18, 2023 10:10
Sampling point
SM3 Location withheld
Sample type
Routine
Lab sample
810-88314-2
Laboratory
Eurofins Eaton Analytical South Bend in
1.4 ug/l , sample collected Dec 18, 2023 10:10, sampling point SM3 TTHM 2950 EPA method 524.2 Oct 1, 2023 – Dec 31, 2023

Routine (10).