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.
Dichloromethane results
MS0090004 , Houlka-Houston W/A
83 samples have been analysed for Dichloromethane at Houlka-Houston 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 Dichloromethane result
The table below lists 1–10 of 83 samples, newest first — collected June 21, 2017 to July 15, 2026.
10 Dichloromethane results from the 10 samples listed here: 0 detected, 10 not detected. Those samples also carried 201 results for other analytes, which are on the full results page.
| Result | Analyte | Monitoring period |
|---|---|---|
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| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF104 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2026 – Dec 31, 2028 |
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| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF103 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2026 – Dec 31, 2026 |
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| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:20, sampling point TF102 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
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| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 6, 2023 15:15, sampling point TF104 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2021 – Dec 31, 2023 |
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| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 6, 2023 16:10, sampling point TF103 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2021 – Dec 31, 2023 |
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| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 3, 2018 14:00, sampling point TF102 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2019 |
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| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 02:30, sampling point TF104 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2018 – Dec 31, 2020 |
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| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 03:15, sampling point TF103 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2018 – Dec 31, 2020 |
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| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 21, 2017 01:00, sampling point TF104 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2017 – Dec 31, 2017 |
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| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 21, 2017 01:35, sampling point TF103 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2017 – Dec 31, 2017 |
-
- Collected
- Jul 15, 2026
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- 35051325002
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2028
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 15, 2026
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 35051325001
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Feb 3, 2025 13:20
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- VO-250204-015
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2025
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Mar 6, 2023 15:15
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- VO-230307-010
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Mar 6, 2023 16:10
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- VO-230307-009
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Oct 3, 2018 14:00
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 181004-001VO
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2019
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- May 21, 2018 02:30
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- 180522-016VO
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- May 21, 2018 03:15
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 180522-015VO
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jun 21, 2017 01:00
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- 170622-008VO
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2017
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jun 21, 2017 01:35
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 170622-007VO
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2017
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
Routine (10).