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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

MS0540067 , Concord-Macedonia W/A

20 samples have been analysed for Cyanide at Concord-Macedonia 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 20 samples, newest first — collected June 4, 2013 to October 1, 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 Concord-Macedonia W/A, from 1 to 10 of 20 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
Oct 1, 2025 07:05
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
CN-251002-017
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 1, 2025 07:05, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Oct 1, 2025 06:55
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
CN-251002-018
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 1, 2025 06:55, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
May 17, 2022 14:50
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
CN-220518-022
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 17, 2022 14:50, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
May 17, 2022 14:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
CN-220518-021
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 17, 2022 14:30, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
Oct 22, 2019 16:20
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
191023-005CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 22, 2019 16:20, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2017 – Dec 31, 2019
Collected
Oct 22, 2019 16:09
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
191023-004CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 22, 2019 16:09, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2017 – Dec 31, 2019
Collected
Jun 17, 2015 03:35
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
150618-059CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 17, 2015 03:35, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Jun 17, 2015 03:15
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
150618-053CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 17, 2015 03:15, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Jun 4, 2013 02:40
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
130605-004CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Jun 4, 2013 02:40, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Jun 4, 2013 02:50
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
130605-003CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Jun 4, 2013 02:50, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013

Routine (10).