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.
Arsenic results
MS0400011 , Town of Walnut Grove
34 samples have been analysed for Arsenic at Town of Walnut Grove.
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 Arsenic result
The table below lists 1–10 of 34 samples, newest first — collected February 29, 2016 to April 1, 2025.
10 Arsenic results from the 10 samples listed here: 0 detected, 10 not detected. Those samples also carried 97 results for other analytes, which are on the full results page.
| Result | Analyte | Monitoring period |
|---|---|---|
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 1, 2025 13:30, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 13:10, sampling point TF104 | Arsenic 1005 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 12:40, sampling point TF103 | Arsenic 1005 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 29, 2022 12:55, sampling point TF104 | Arsenic 1005 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 Aug 29, 2022 12:26, sampling point TF101 | Arsenic 1005 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 Aug 29, 2022 12:40, sampling point TF103 | Arsenic 1005 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 2, 2019 13:15, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 2, 2019 13:05, sampling point TF103 | Arsenic 1005 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 2, 2019 13:30, sampling point TF104 | Arsenic 1005 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 29, 2016 03:50, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
-
- Collected
- Apr 1, 2025 13:30
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- IN-250402-053
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 11, 2025 13:10
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- IN-250312-018
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 11, 2025 12:40
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- IN-250312-017
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 29, 2022 12:55
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- IN-220830-009
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 29, 2022 12:26
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- IN-220830-011
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 29, 2022 12:40
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- IN-220830-010
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 2, 2019 13:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 190403-047IN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 2, 2019 13:05
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 190403-046IN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 2, 2019 13:30
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- 190403-045IN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Feb 29, 2016 03:50
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 160301-036IN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).