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
MS0800004 , City of Louisville
20 samples have been analysed for TTHM at City of Louisville.
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 11–20 of 20 samples, newest first — collected August 30, 2004 to September 12, 2023.
10 TTHM results from the 10 samples listed here: 6 detected, 4 not detected. Those samples also carried 20 results for other analytes, which are on the full results page.
Units in this table
TTHM is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.
| Result | Analyte | Monitoring period |
|---|---|---|
|
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| Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 12, 2023 10:10, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Not recorded |
|
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| 3.32 ug/l , sample collected Oct 17, 2022 09:45, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Not recorded |
|
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| Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 7, 2021 11:20, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Not recorded |
|
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| 1.08 ug/l , sample collected Nov 16, 2020 14:40, sampling point MRT000 | TTHM 2950 | Not recorded |
|
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| Not detected below 4 ug/l Minimum Reporting Level , sample collected Aug 14, 2017 13:50, sampling point MRT000 | TTHM 2950 | Jan 1, 2015 – Dec 31, 2017 |
|
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| 2.41 ug/l , sample collected Jul 16, 2014 03:00, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2012 – Dec 31, 2014 |
|
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| 1.16 ug/l , sample collected Jun 20, 2011 02:45, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2009 – Dec 31, 2011 |
|
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| 0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Oct 4, 2006, sampling point MRT000 | TTHM 2950 EPA method 551.1 | Jan 1, 2006 – Dec 31, 2008 |
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| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 29, 2005, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2005 – Dec 31, 2005 |
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| 31.3 ug/l , sample collected Aug 30, 2004, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2004 – Dec 31, 2004 |
-
- Collected
- Sep 12, 2023 10:10
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-230913-020
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Oct 17, 2022 09:45
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-221018-010
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 3.32 ug/l
-
- Collected
- Dec 7, 2021 11:20
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-211208-017
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Nov 16, 2020 14:40
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 201117-002TH
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
TTHM 2950
- Result
- 1.08 ug/l
-
- Collected
- Aug 14, 2017 13:50
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 170815-013TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
TTHM 2950
- Result
- Not detected below 4 ug/l Minimum Reporting Level
-
- Collected
- Jul 16, 2014 03:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 140717-021TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
TTHM 2950 EPA method 524.2
- Result
- 2.41 ug/l
-
- Collected
- Jun 20, 2011 02:45
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 110621-015TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2009 – Dec 31, 2011
-
TTHM 2950 EPA method 524.2
- Result
- 1.16 ug/l
-
- Collected
- Oct 4, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 061005-007TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
TTHM 2950 EPA method 551.1
- Result
- 0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
-
- Collected
- Nov 29, 2005
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 051130-004TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2005 – Dec 31, 2005
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Aug 30, 2004
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 040831-020TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2004 – Dec 31, 2004
-
TTHM 2950 EPA method 524.2
- Result
- 31.3 ug/l
Routine (10).