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
MS0300113 , Ocean Beach
27 samples have been analysed for Arsenic at Ocean Beach.
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 27 samples, newest first — collected April 8, 2015 to February 24, 2025.
10 Arsenic results from the 10 samples listed here: 1 detected, 9 not detected. Those samples also carried 100 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 Feb 24, 2025 10:00, sampling point TF103 | Arsenic 1005 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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| 0.0005 mg/l , sample collected Feb 14, 2024 13:43, sampling point TF104 | Arsenic 1005 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2026 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 12:52, sampling point TF104 | Arsenic 1005 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 18, 2022 10:00, 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 22, 2020 15:30, sampling point TF104 | Arsenic 1005 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2020 09:51, sampling point TF104 | Arsenic 1005 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 27, 2019 08:57, 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 May 9, 2017 12:40, sampling point TF104 | Arsenic 1005 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2015 01:15, sampling point TF103 | Arsenic 1005 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2015 12:50, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
-
- Collected
- Feb 24, 2025 10:00
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- IN-250225-064
- 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
- Feb 14, 2024 13:43
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- IN-240215-004
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2026
-
Arsenic 1005 EPA method 200.8
- Result
- 0.0005 mg/l
-
- Collected
- Oct 23, 2023 12:52
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- IN-231024-016
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- May 18, 2022 10:00
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- IN-220519-003
- 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 22, 2020 15:30
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- 200423-023IN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 24, 2020 09:51
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- 200325-013IN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 27, 2019 08:57
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 190328-024IN
- 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
- May 9, 2017 12:40
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- 170510-014IN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 8, 2015 01:15
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 150409-068IN
- 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
-
- Collected
- Apr 8, 2015 12:50
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 150409-057IN
- 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).