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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

MS0450010 , City of Madison

238 samples have been analysed for TTHM at City of Madison.

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 21–30 of 238 samples, newest first — collected April 15, 2024 to October 15, 2024.

10 TTHM results from the 10 samples listed here: 10 detected, 0 not detected.

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 The location on record identifies a private home, and we do not publish those.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 City of Madison, from 21 to 30 of 238 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
Oct 15, 2024 09:05
Sampling point
SM6 TCR Site 22 at Hamil's Restaurant
Sample type
Routine
Lab sample
TH-241016-011
Laboratory
MSDH Lab
23.1 ug/l , sample collected Oct 15, 2024 09:05, sampling point SM6 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024
Collected
Oct 15, 2024 08:20
Sampling point
SM5 Location withheld
Sample type
Routine
Lab sample
TH-241016-010
Laboratory
MSDH Lab
39.7 ug/l , sample collected Oct 15, 2024 08:20, sampling point SM5 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024
Collected
Oct 15, 2024 08:50
Sampling point
SM4 TCR Site 6 at Fire Sta #2
Sample type
Routine
Lab sample
TH-241016-009
Laboratory
MSDH Lab
40.5 ug/l , sample collected Oct 15, 2024 08:50, sampling point SM4 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024
Collected
Oct 15, 2024 09:45
Sampling point
SM3 TCR Site 18 at McHs
Sample type
Routine
Lab sample
TH-241016-008
Laboratory
MSDH Lab
60.6 ug/l , sample collected Oct 15, 2024 09:45, sampling point SM3 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024
Collected
Jul 22, 2024 13:45
Sampling point
SM6 TCR Site 22 at Hamil's Restaurant
Sample type
Routine
Lab sample
TH-240723-006
Laboratory
MSDH Lab
30.9 ug/l , sample collected Jul 22, 2024 13:45, sampling point SM6 TTHM 2950 EPA method 524.2 Jul 1, 2024 – Sep 30, 2024
Collected
Jul 22, 2024 13:15
Sampling point
SM5 Location withheld
Sample type
Routine
Lab sample
TH-240723-005
Laboratory
MSDH Lab
44.4 ug/l , sample collected Jul 22, 2024 13:15, sampling point SM5 TTHM 2950 EPA method 524.2 Jul 1, 2024 – Sep 30, 2024
Collected
Jul 22, 2024 13:35
Sampling point
SM4 TCR Site 6 at Fire Sta #2
Sample type
Routine
Lab sample
TH-240723-004
Laboratory
MSDH Lab
41.2 ug/l , sample collected Jul 22, 2024 13:35, sampling point SM4 TTHM 2950 EPA method 524.2 Jul 1, 2024 – Sep 30, 2024
Collected
Jul 22, 2024 14:25
Sampling point
SM3 TCR Site 18 at McHs
Sample type
Routine
Lab sample
TH-240723-003
Laboratory
MSDH Lab
52.5 ug/l , sample collected Jul 22, 2024 14:25, sampling point SM3 TTHM 2950 EPA method 524.2 Jul 1, 2024 – Sep 30, 2024
Collected
Apr 15, 2024 09:45
Sampling point
SM6 TCR Site 22 at Hamil's Restaurant
Sample type
Routine
Lab sample
TH-240416-028
Laboratory
MSDH Lab
22.1 ug/l , sample collected Apr 15, 2024 09:45, sampling point SM6 TTHM 2950 EPA method 524.2 Apr 1, 2024 – Jun 30, 2024
Collected
Apr 15, 2024 10:10
Sampling point
SM5 Location withheld
Sample type
Routine
Lab sample
TH-240416-027
Laboratory
MSDH Lab
45.6 ug/l , sample collected Apr 15, 2024 10:10, sampling point SM5 TTHM 2950 EPA method 524.2 Apr 1, 2024 – Jun 30, 2024

Routine (10).