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.
Selenium results
MS0090024 , Thorn Water Association
31 samples have been analysed for Selenium at Thorn Water Association.
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 Selenium result
The table below lists 1–10 of 31 samples, newest first — collected September 24, 2018 to June 29, 2026.
10 Selenium results from the 10 samples listed here: 0 detected, 10 not detected. Those samples also carried 119 results for other analytes, which are on the full results page.
Units in this table
Selenium 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 Jun 29, 2026, sampling point TF102 | Selenium 1045 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2031 |
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| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF103 | Selenium 1045 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2031 |
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| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 13, 2025 12:12, sampling point TF102 | Selenium 1045 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 9, 2024 11:59, sampling point TF103 | Selenium 1045 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
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| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 2, 2022 14:30, sampling point TF102 | Selenium 1045 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
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| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 2, 2022 14:36, sampling point TF101 | Selenium 1045 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2020 13:00, sampling point TF103 | Selenium 1045 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2020 13:10, sampling point TF102 | Selenium 1045 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2020 13:05, sampling point TF101 | Selenium 1045 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 24, 2018 02:35, sampling point TF102 | Selenium 1045 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
-
- Collected
- Jun 29, 2026
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 35047253002
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2031
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jun 29, 2026
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- 35047253001
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2031
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jan 13, 2025 12:12
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- IN-250114-021
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
-
- Collected
- Jan 9, 2024 11:59
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- IN-240110-014
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
-
- Collected
- May 2, 2022 14:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- IN-220503-024
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
-
- Collected
- May 2, 2022 14:36
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- IN-220503-023
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
-
- Collected
- Apr 6, 2020 13:00
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- 200407-013IN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 6, 2020 13:10
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 200407-012IN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 6, 2020 13:05
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 200407-011IN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 24, 2018 02:35
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 180925-049IN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).