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
MS0240154 , Harrison Central High School
11 samples have been analysed for Cyanide at Harrison Central High School.
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 2, 2004 to August 14, 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 |
|---|---|---|
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 14, 2025 02:33, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 12, 2021 14:00, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2020 – Dec 31, 2022 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 15, 2018 01:13, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2017 – Dec 31, 2019 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 11, 2014 01:25, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2014 – Dec 31, 2016 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Nov 30, 2011 02:00, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 15 ug/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2008 – Dec 31, 2010 |
|
||
| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2008 – Dec 31, 2010 |
|
||
| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 6, 2006, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2005 – Dec 31, 2007 |
|
||
| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 9, 2005, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2005 – Dec 31, 2007 |
|
||
| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Feb 2, 2004, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2002 – Dec 31, 2004 |
-
- Collected
- Aug 14, 2025 02:33
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- CN-250815-005
- 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 12, 2021 14:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- CN-210513-001
- 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 15, 2018 01:13
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 180516-043CN
- 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
- Aug 11, 2014 01:25
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 140812-009CN
- 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
- Nov 30, 2011 02:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 111201-038CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- May 10, 2010
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 100511-018CN
- 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
- Apr 14, 2008
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 080415-074CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.005 mg/l Minimum Reporting Level
-
- Collected
- Feb 6, 2006
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 060207-016CN
- 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 9, 2005
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 050310-043CN
- 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
- Feb 2, 2004
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 040203-051CN
- 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
Routine (10).