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.
Mercury results
MS0350006 , Porterville W/A
27 samples have been analysed for Mercury at Porterville 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 Mercury result
The table below lists 1–10 of 27 samples, newest first — collected August 29, 2022 to November 19, 2025.
10 Mercury results from the 10 samples listed here: 0 detected, 10 not detected. Those samples also carried 99 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 Nov 19, 2025 13:37, sampling point TF103 | Mercury 1035 EPA method 200.8 | Oct 1, 2025 – Dec 31, 2025 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 13:30, sampling point TF102 | Mercury 1035 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 Feb 24, 2025 13:15, sampling point TF101 | Mercury 1035 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 Oct 9, 2024 12:20, sampling point TF103 | Mercury 1035 EPA method 200.8 | Not recorded |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 14, 2024 13:33, sampling point TF103 | Mercury 1035 EPA method 200.8 | Jul 1, 2024 – Sep 30, 2024 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 3, 2024 12:39, sampling point TF103 | Mercury 1035 EPA method 200.8 | Apr 1, 2024 – Jun 30, 2024 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 24, 2024 09:00, sampling point TF103 | Mercury 1035 EPA method 200.8 | Jan 1, 2024 – Mar 31, 2024 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 25, 2023 12:57, sampling point TF103 | Mercury 1035 EPA method 200.8 | Oct 1, 2023 – Dec 31, 2023 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 14:15, sampling point TF103 | Mercury 1035 EPA method 200.8 | Jul 1, 2023 – Sep 30, 2023 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 29, 2022 12:51, sampling point TF102 | Mercury 1035 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
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- Collected
- Nov 19, 2025 13:37
- Sampling point
- TF103 Treatment Facility TF103
- Sample type
- Routine
- Lab sample
- IN-251120-001
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2025 – Dec 31, 2025
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Feb 24, 2025 13:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- IN-250225-056
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Feb 24, 2025 13:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- IN-250225-057
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Oct 9, 2024 12:20
- Sampling point
- TF103 Treatment Facility TF103
- Sample type
- Routine
- Lab sample
- IN-241010-005
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 14, 2024 13:33
- Sampling point
- TF103 Treatment Facility TF103
- Sample type
- Routine
- Lab sample
- IN-240815-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2024 – Sep 30, 2024
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 3, 2024 12:39
- Sampling point
- TF103 Treatment Facility TF103
- Sample type
- Routine
- Lab sample
- IN-240404-006
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2024 – Jun 30, 2024
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jan 24, 2024 09:00
- Sampling point
- TF103 Treatment Facility TF103
- Sample type
- Routine
- Lab sample
- IN-240125-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Mar 31, 2024
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Oct 25, 2023 12:57
- Sampling point
- TF103 Treatment Facility TF103
- Sample type
- Routine
- Lab sample
- IN-231026-024
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2023 – Dec 31, 2023
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 10, 2023 14:15
- Sampling point
- TF103 Treatment Facility TF103
- Sample type
- Routine
- Lab sample
- IN-230711-005
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Sep 30, 2023
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 29, 2022 12:51
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- IN-220830-041
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).