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.
Cyanide results
MS0270018 , Humphreys Co. W/A #1-Midnight
20 samples have been analysed for Cyanide at Humphreys Co. W/A #1-Midnight.
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 Cyanide result
The table below lists 1–10 of 20 samples, newest first — collected December 2, 2019 to August 19, 2025.
10 Cyanide results from the 10 samples listed here: 0 detected, 10 not detected.
| Result | Analyte | Monitoring period |
|---|---|---|
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 19, 2025 10:15, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Apr 24, 2024 09:30, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2024 – Dec 31, 2024 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 11:00, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2023 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 5, 2022 13:20, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2022 – Dec 31, 2022 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Feb 23, 2022 13:35, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2020 – Dec 31, 2022 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 20, 2021 15:00, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2021 – Dec 31, 2021 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 20, 2021 13:00, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2021 – Dec 31, 2021 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 10, 2020 10:25, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Apr 1, 2020 – Jun 30, 2020 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Mar 9, 2020 08:02, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2020 – Mar 31, 2020 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Dec 2, 2019 15:05, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2017 – Dec 31, 2019 |
-
- Collected
- Aug 19, 2025 10:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- CN-250820-045
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Apr 24, 2024 09:30
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- CN-240425-011
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Oct 23, 2023 11:00
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- CN-231024-023
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- May 5, 2022 13:20
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- CN-220506-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2022
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Feb 23, 2022 13:35
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- CN-220224-011
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Oct 20, 2021 15:00
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- CN-211021-013
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2021
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Sep 20, 2021 13:00
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- CN-210921-002
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2021
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Jun 10, 2020 10:25
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- 200611-007CN
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2020 – Jun 30, 2020
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Mar 9, 2020 08:02
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- 200310-001CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Mar 31, 2020
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Dec 2, 2019 15:05
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 191203-005CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
Routine (10).