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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

MS0440003 , Columbus Light & Water

24 samples have been analysed for Cyanide at Columbus Light & Water.

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 24 samples, newest first — collected September 17, 2012 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.

Cyanide results for Columbus Light & Water, from 1 to 10 of 24 samples shown analysed for it, newest first. This view leaves out other analytes on the same samples. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Sep 29, 2025 13:13
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
CN-250930-030
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 29, 2025 13:13, sampling point TF081 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Sep 8, 2025 14:28
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
CN-250909-019
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 8, 2025 14:28, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
May 9, 2022 13:07
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
CN-220510-027
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 9, 2022 13:07, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
May 9, 2022 13:29
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
CN-220510-026
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 9, 2022 13:29, sampling point TF081 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
Apr 9, 2019 13:07
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
190410-022CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Apr 9, 2019 13:07, sampling point TF081 Cyanide 1024 EPA method QC10204001X Jan 1, 2017 – Dec 31, 2019
Collected
Apr 9, 2019 13:39
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
190410-021CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Apr 9, 2019 13:39, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2017 – Dec 31, 2019
Collected
May 20, 2015 12:46
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
150521-004CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 20, 2015 12:46, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
May 20, 2015 01:09
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
150521-002CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 20, 2015 01:09, sampling point TF081 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Sep 17, 2012 01:47
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120918-005CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Sep 17, 2012 01:47, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Sep 17, 2012 01:20
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
120918-004CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Sep 17, 2012 01:20, sampling point TF081 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013

Routine (10).