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
MS0280018 , Valley Park W/A
17 samples have been analysed for Cyanide at Valley Park 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 Cyanide result
The table below lists 1–10 of 17 samples, newest first — collected September 15, 2021 to July 14, 2026.
10 Cyanide results from the 10 samples listed here: 1 detected, 9 not detected. Those samples also carried 21 results for other analytes, which are on the full results page.
| Result | Analyte | Monitoring period |
|---|---|---|
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| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Jul 14, 2026, sampling point TF102 | Cyanide 1024 EPA method 335.4 | Jan 1, 2026 – Dec 31, 2031 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 18, 2025 10:00, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
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| 0.0313 mg/l , sample collected May 6, 2025 10:00, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2025 – Dec 31, 2025 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Apr 23, 2024 18:40, 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 19, 2023 13:00, 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 18, 2022 13:15, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Apr 1, 2022 – Jun 30, 2022 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 9, 2022 13:28, 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 Feb 23, 2022 15:22, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2022 – Mar 31, 2022 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Nov 17, 2021 14:10, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Oct 1, 2021 – Dec 31, 2021 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 15, 2021 14:15, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jul 1, 2021 – Sep 30, 2021 |
-
- Collected
- Jul 14, 2026
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- 35051917001
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2031
-
Cyanide 1024 EPA method 335.4
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
-
- Collected
- Aug 18, 2025 10:00
- Sampling point
- TF101 Treatment Plant T10
- Sample type
- Routine
- Lab sample
- CN-250819-052
- 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
- May 6, 2025 10:00
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- CN-250507-011
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- 0.0313 mg/l
-
- Collected
- Apr 23, 2024 18:40
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- CN-240424-010
- 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 19, 2023 13:00
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- CN-231019-016
- 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 18, 2022 13:15
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- CN-220519-032
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2022 – Jun 30, 2022
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- May 9, 2022 13:28
- Sampling point
- TF101 Treatment Plant T10
- Sample type
- Routine
- Lab sample
- CN-220510-042
- 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
- Feb 23, 2022 15:22
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- CN-220224-013
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Mar 31, 2022
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Nov 17, 2021 14:10
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- CN-211118-001
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2021 – Dec 31, 2021
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Sep 15, 2021 14:15
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- CN-210916-002
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2021 – Sep 30, 2021
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
Routine (10).