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
MS0360068 , Wellsgate
16 samples have been analysed for TTHM at Wellsgate.
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 11–16 of 16 samples, newest first — collected June 23, 2004 to December 6, 2021.
6 TTHM results from the 6 samples listed here: 3 detected, 3 not detected. Those samples also carried 16 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 Dec 6, 2021 09:31, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Not recorded |
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| 31.3 ug/l , sample collected Aug 22, 2019 13:00, sampling point MRT000 | TTHM 2950 | Jan 1, 2019 – Dec 31, 2019 |
|
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| Not detected below 4 ug/l Minimum Reporting Level , sample collected Jul 8, 2013 12:15, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2011 – Dec 31, 2013 |
|
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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 Sep 23, 2009, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2008 – Dec 31, 2010 |
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| 1.47 ug/l , sample collected Sep 6, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2005 – Dec 31, 2007 |
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| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 23, 2004, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2004 – Dec 31, 2004 |
-
- Collected
- Dec 6, 2021 09:31
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-211207-010
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Aug 22, 2019 13:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 190823-004TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2019
-
TTHM 2950
- Result
- 31.3 ug/l
-
- Collected
- Jul 8, 2013 12:15
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 130709-004TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 4 ug/l Minimum Reporting Level
-
- Collected
- Sep 23, 2009
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 090924-021TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
TTHM 2950 EPA method 524.2
- 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
- Sep 6, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070907-008TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
TTHM 2950 EPA method 524.2
- Result
- 1.47 ug/l
-
- Collected
- Jun 23, 2004
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 040624-009TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2004 – Dec 31, 2004
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
Routine (6).