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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.

Chemical and radiological sample results

MS0170010 , Horn Lake Water Association

27 of the 61 analytes this system has been tested for have been detected at least once, across 426 samples on record.

The other 34 were tested for and never found. An analyte is counted here if any result on record measured it, so this covers the whole history and not the samples listed below.

Across all 426 samples on record, detections range from August 10, 1993 to February 24, 2026. These figures cover the whole record.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

What has been detected, ever

Every analyte measured above its reporting level at any point in this system’s record, most often detected first. This is not limited to the samples listed below.

Every analyte ever detected for Horn Lake Water Association, with how many results found it and when it was first and last detected. Covers the whole record, not only the samples listed below.
Analyte Kind Detected in First detected Last detected
Copper, Free 1022 Inorganic Chemical 196 of 233 results Aug 10, 1993 Jul 22, 2024
Lead 1030 Inorganic Chemical 62 of 233 results Aug 10, 1993 Jul 20, 2021
Nitrate-Nitrite 1038 Inorganic Chemical 32 of 33 results May 5, 2004 Feb 24, 2026
Nitrate 1040 Inorganic Chemical 32 of 33 results May 5, 2004 Feb 24, 2026
Barium 1010 Inorganic Chemical 20 of 20 results Apr 16, 2002 Feb 6, 2024
Fluoride 1025 Inorganic Chemical 17 of 20 results Apr 16, 2002 Feb 6, 2024
Chromium 1020 Inorganic Chemical 12 of 20 results Apr 16, 2002 Feb 6, 2024
Nickel 1036 Inorganic Chemical 10 of 20 results Apr 16, 2002 Jan 9, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 8 of 40 results Jul 10, 2007 Jun 6, 2018
TTHM 2950 Organic Chemical 7 of 41 results Jul 10, 2007 Aug 17, 2020
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 17, 2019 Nov 4, 2024
Dibromochloromethane 2944 Organic Chemical 6 of 32 results Sep 16, 2008 Aug 17, 2020
Monochloroacetic Acid 2450 Organic Chemical 6 of 30 results Jun 7, 2012 Jun 6, 2018
Combined Radium (-226 & -228) 4010 Radionuclide 5 of 6 results Sep 30, 2009 Jul 20, 2020
Radium-228 4030 Radionuclide 4 of 6 results Sep 30, 2009 Jul 20, 2020
Gross Alpha Particle Activity 4109 Radionuclide 4 of 6 results Sep 30, 2009 Sep 11, 2012
Radium-226 4020 Radionuclide 3 of 6 results Sep 30, 2009 Jan 23, 2018
Bromodichloromethane 2943 Organic Chemical 2 of 32 results Aug 17, 2020 Aug 17, 2020
Gross Alpha, Incl. Radon & U 4002 Radionuclide 2 of 2 results Jan 23, 2018 Jul 20, 2020
Bromoform 2942 Organic Chemical 2 of 32 results Sep 16, 2008 Jul 11, 2012
Gross Alpha, Excl. Radon & U 4000 Radionuclide 2 of 4 results Sep 30, 2009 Mar 12, 2010
Gross Beta Particle Activity 4100 Radionuclide 2 of 2 results Sep 30, 2009 Mar 12, 2010
Selenium 1045 Inorganic Chemical 2 of 20 results Jan 26, 2004 Jan 23, 2006
Arsenic 1005 Inorganic Chemical 1 of 20 results Apr 2, 2008 Apr 2, 2008
Nitrite 1041 Inorganic Chemical 1 of 33 results Jun 14, 2006 Jun 14, 2006
Cadmium 1015 Inorganic Chemical 1 of 20 results Jan 23, 2006 Jan 23, 2006
Sulfate 1055 Inorganic Chemical 1 of 3 results Sep 10, 2003 Sep 10, 2003

No date range is applied: this list draws on every sample on record. Show the last two years only.

The most recent samples, result by result

The table below lists 331–340 of 426 samples, newest first — collected August 14, 2000 to September 10, 2003. The summary above covers all 426.

29 results from the 10 samples listed here: 14 detected, 15 not detected. Across the whole record it is 446 of 1,795. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for Horn Lake Water Association, every result from 331 to 340 of 426 samples shown, newest first. 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 10, 2003
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
030911-009CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2002 – Dec 31, 2004
Collected
Apr 16, 2002
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
020417-027IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 16, 2002, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
0.02 mg/l , sample collected Apr 16, 2002, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Apr 16, 2002, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
0.001 mg/l , sample collected Apr 16, 2002, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
1.02 mg/l , sample collected Apr 16, 2002, sampling point TF080 Fluoride 1025 EPA method 300.0 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 16, 2002, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
0.001 mg/l , sample collected Apr 16, 2002, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 16, 2002, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Apr 16, 2002, sampling point TF080 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 16, 2002, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Apr 16, 2002, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 16, 2002, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Collected
Aug 14, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000815-040L
Laboratory
MSDH Lab
0.065 mg/l , sample collected Aug 14, 2000, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Aug 14, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Aug 14, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000815-009L
Laboratory
MSDH Lab
0.112 mg/l , sample collected Aug 14, 2000, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Aug 14, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Aug 14, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000815-008L
Laboratory
MSDH Lab
0.086 mg/l , sample collected Aug 14, 2000, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Aug 14, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Aug 14, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000815-007L
Laboratory
MSDH Lab
0.149 mg/l , sample collected Aug 14, 2000, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Aug 14, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Aug 14, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000815-006L
Laboratory
MSDH Lab
0.028 mg/l , sample collected Aug 14, 2000, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Aug 14, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Aug 14, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000815-005L
Laboratory
MSDH Lab
0.044 mg/l , sample collected Aug 14, 2000, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Aug 14, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Aug 14, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000815-004L
Laboratory
MSDH Lab
0.102 mg/l , sample collected Aug 14, 2000, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Aug 14, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Aug 14, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000815-003L
Laboratory
MSDH Lab
0.071 mg/l , sample collected Aug 14, 2000, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Aug 14, 2000, sampling point DS000 Lead 1030 Not recorded

Routine (10).