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
MS0280018 , Valley Park W/A
113 samples have been analysed for TTHM at Valley Park W/A.
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 101–110 of 113 samples, newest first — collected May 31, 2005 to July 19, 2007.
10 TTHM results from the 10 samples listed here: 10 detected, 0 not detected. Those samples also carried 24 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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| 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 Jul 19, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jul 1, 2007 – Sep 30, 2007 |
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| 177.36 ug/l , sample collected May 3, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Apr 1, 2007 – Jun 30, 2007 |
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| 146.91 ug/l , sample collected Feb 26, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2007 – Mar 31, 2007 |
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| 147.88 ug/l , sample collected Nov 27, 2006, sampling point MRT000 | TTHM 2950 EPA method 551.1 | Oct 1, 2006 – Dec 31, 2006 |
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| 150.7 ug/l , sample collected Aug 7, 2006, sampling point MRT000 | TTHM 2950 EPA method 551.1 | Jul 1, 2006 – Sep 30, 2006 |
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| 48.66 ug/l , sample collected May 15, 2006, sampling point MRT000 | TTHM 2950 EPA method 551.1 | Apr 1, 2006 – Jun 30, 2006 |
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| 107 ug/l , sample collected Mar 2, 2006, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2006 – Mar 31, 2006 |
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| 166 ug/l , sample collected Oct 13, 2005, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Oct 1, 2005 – Dec 31, 2005 |
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| 150 ug/l , sample collected Sep 27, 2005, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jul 1, 2005 – Sep 30, 2005 |
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| 233 ug/l , sample collected May 31, 2005, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Apr 1, 2005 – Jun 30, 2005 |
-
- Collected
- Jul 19, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070720-005TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2007 – Sep 30, 2007
-
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
- May 3, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070504-003TH
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2007 – Jun 30, 2007
-
TTHM 2950 EPA method 524.2
- Result
- 177.36 ug/l
-
- Collected
- Feb 26, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070227-014TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Mar 31, 2007
-
TTHM 2950 EPA method 524.2
- Result
- 146.91 ug/l
-
- Collected
- Nov 27, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 061128-006TH
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2006 – Dec 31, 2006
-
TTHM 2950 EPA method 551.1
- Result
- 147.88 ug/l
-
- Collected
- Aug 7, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 060808-003TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2006 – Sep 30, 2006
-
TTHM 2950 EPA method 551.1
- Result
- 150.7 ug/l
-
- Collected
- May 15, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 060516-009TH
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2006 – Jun 30, 2006
-
TTHM 2950 EPA method 551.1
- Result
- 48.66 ug/l
-
- Collected
- Mar 2, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 060303-012TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Mar 31, 2006
-
TTHM 2950 EPA method 524.2
- Result
- 107 ug/l
-
- Collected
- Oct 13, 2005
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 051014-006TH
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2005 – Dec 31, 2005
-
TTHM 2950 EPA method 524.2
- Result
- 166 ug/l
-
- Collected
- Sep 27, 2005
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 050928-004TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2005 – Sep 30, 2005
-
TTHM 2950 EPA method 524.2
- Result
- 150 ug/l
-
- Collected
- May 31, 2005
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 050601-001TH
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2005 – Jun 30, 2005
-
TTHM 2950 EPA method 524.2
- Result
- 233 ug/l
Routine (10).