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
MS0430002 , City of Brookhaven
43 samples have been analysed for Cyanide at City of Brookhaven.
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 43 samples, newest first — collected April 8, 2019 to September 9, 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 Sep 9, 2025 13:00, sampling point TF108 | 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 Sep 9, 2025 14:46, sampling point TF107 | 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 Sep 9, 2025 11:38, sampling point TF080 | 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 Oct 23, 2024 10:25, sampling point TF109 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2022 – Dec 31, 2024 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 10, 2022 13:30, sampling point TF107 | 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 May 10, 2022 14:34, sampling point TF108 | 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 May 10, 2022 14:02, sampling point TF080 | 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 24, 2021 13:04, sampling point TF109 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2019 – Dec 31, 2021 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Dec 30, 2019 13:35, sampling point TF107 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2017 – Dec 31, 2019 |
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Apr 8, 2019 13:30, sampling point TF080 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2017 – Dec 31, 2019 |
-
- Collected
- Sep 9, 2025 13:00
- Sampling point
- TF108 Treatment Plant T108
- Sample type
- Routine
- Lab sample
- CN-250910-037
- 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
- Sep 9, 2025 14:46
- Sampling point
- TF107 Treatment Plant T107
- Sample type
- Routine
- Lab sample
- CN-250910-038
- 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
- Sep 9, 2025 11:38
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- CN-250910-036
- 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
- Oct 23, 2024 10:25
- Sampling point
- TF109
- Sample type
- Routine
- Lab sample
- CN-241024-004
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- May 10, 2022 13:30
- Sampling point
- TF107 Treatment Plant T107
- Sample type
- Routine
- Lab sample
- CN-220511-026
- 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
- May 10, 2022 14:34
- Sampling point
- TF108 Treatment Plant T108
- Sample type
- Routine
- Lab sample
- CN-220511-025
- 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
- May 10, 2022 14:02
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- CN-220511-024
- 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 24, 2021 13:04
- Sampling point
- TF109
- Sample type
- Routine
- Lab sample
- CN-210225-002
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Dec 30, 2019 13:35
- Sampling point
- TF107 Treatment Plant T107
- Sample type
- Routine
- Lab sample
- 191231-001CN
- 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
-
- Collected
- Apr 8, 2019 13:30
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 190409-004CN
- 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).