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
MS0570004 , City of McComb
11 samples have been analysed for Cyanide at City of McComb.
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 11 samples, newest first — collected February 19, 2002 to September 29, 2025.
10 Cyanide results from the 10 samples listed here: 0 detected, 10 not detected.
Units in this table
Cyanide is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.
| Result | Analyte | Monitoring period |
|---|---|---|
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 29, 2025 13:08, 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 Aug 29, 2022 13:00, 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 Nov 25, 2019 13:10, sampling point TF080 | 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 Jun 15, 2015 01:07, sampling point TF080 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2014 – Dec 31, 2016 |
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| Not detected below 15 ug/l Minimum Reporting Level , sample collected Jun 17, 2013 01:04, sampling point TF080 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2011 – Dec 31, 2013 |
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| Not detected below 15 ug/l Minimum Reporting Level , sample collected Feb 17, 2010, sampling point TF080 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2008 – Dec 31, 2010 |
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| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 22, 2006, sampling point TF080 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2005 – Dec 31, 2007 |
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| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Apr 11, 2005, sampling point TF080 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2005 – Dec 31, 2007 |
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| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Mar 17, 2004, sampling point TF080 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2002 – Dec 31, 2004 |
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| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Feb 19, 2002, sampling point TF080 | Cyanide 1024 EPA method 335.4 | Jan 1, 2002 – Dec 31, 2004 |
-
- Collected
- Sep 29, 2025 13:08
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- CN-250930-025
- 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
- Aug 29, 2022 13:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- CN-220830-024
- 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
- Nov 25, 2019 13:10
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 191126-001CN
- 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
- Jun 15, 2015 01:07
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 150616-006CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Jun 17, 2013 01:04
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 130618-032CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 15 ug/l Minimum Reporting Level
-
- Collected
- Feb 17, 2010
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 100218-007CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 15 ug/l Minimum Reporting Level
-
- Collected
- Mar 22, 2006
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 060323-110CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.005 mg/l Minimum Reporting Level
-
- Collected
- Apr 11, 2005
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 050412-060CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.005 mg/l Minimum Reporting Level
-
- Collected
- Mar 17, 2004
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 040318-011CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
-
- Collected
- Feb 19, 2002
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 020220-013CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cyanide 1024 EPA method 335.4
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
Routine (10).