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
MS0170024 , City of Horn Lake - Holly Hills
25 of the 57 analytes this system has been tested for have been detected at least once, across 257 samples on record.
The other 32 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 257 samples on record, detections range from August 11, 1993 to February 23, 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 128 of 145 results | Aug 11, 1993 | Jul 30, 2025 |
| Lead 1030 | Inorganic Chemical | 82 of 145 results | Aug 11, 1993 | Jul 30, 2025 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 23 of 23 results | May 12, 2004 | Feb 23, 2026 |
| Nitrate 1040 | Inorganic Chemical | 23 of 23 results | May 12, 2004 | Feb 23, 2026 |
| TTHM 2950 | Organic Chemical | 13 of 20 results | Jul 10, 2007 | Jun 4, 2025 |
| Barium 1010 | Inorganic Chemical | 11 of 11 results | May 14, 2002 | Feb 3, 2025 |
| Fluoride 1025 | Inorganic Chemical | 10 of 11 results | May 14, 2002 | Feb 3, 2025 |
| Nickel 1036 | Inorganic Chemical | 10 of 11 results | May 14, 2002 | Feb 3, 2025 |
| Chromium 1020 | Inorganic Chemical | 9 of 11 results | Jan 28, 2004 | Feb 3, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 8 of 15 results | Sep 4, 2024 | Jun 4, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 8 of 20 results | Jul 10, 2007 | Jul 25, 2023 |
| Bromoform 2942 | Organic Chemical | 7 of 15 results | Sep 4, 2024 | Jun 4, 2025 |
| Xylenes, Total 2955 | Organic Chemical | 7 of 24 results | Apr 21, 2008 | Apr 12, 2010 |
| Bromodichloromethane 2943 | Organic Chemical | 5 of 15 results | Jul 10, 2007 | Jun 4, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 12, 2011 | Jul 11, 2012 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 of 14 results | Jul 10, 2012 | Aug 24, 2020 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 17, 2019 | Oct 14, 2024 |
| Chloroform 2941 | Organic Chemical | 2 of 15 results | Sep 3, 2014 | Sep 4, 2024 |
| Monochloroacetic Acid 2450 | Organic Chemical | 2 of 14 results | Jul 10, 2012 | Jul 18, 2019 |
| Trichloroacetic Acid 2452 | Organic Chemical | 2 of 14 results | Sep 3, 2014 | Sep 3, 2014 |
| Cadmium 1015 | Inorganic Chemical | 2 of 11 results | Feb 28, 2005 | Jan 25, 2006 |
| Selenium 1045 | Inorganic Chemical | 2 of 11 results | Feb 28, 2005 | Jan 25, 2006 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 14 results | Aug 24, 2020 | Aug 24, 2020 |
| Ethylbenzene 2992 | Organic Chemical | 1 of 24 results | Apr 21, 2008 | Apr 21, 2008 |
| Arsenic 1005 | Inorganic Chemical | 1 of 11 results | Apr 2, 2008 | Apr 2, 2008 |
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 201–210 of 257 samples, newest first — collected June 22, 1995 to June 19, 1996. The summary above covers all 257.
20 results from the 10 samples listed here: 13 detected, 7 not detected. Across the whole record it is 369 of 1,193. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.1 mg/l , sample collected Jun 19, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Jun 19, 1996, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.07 mg/l , sample collected Jun 19, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Jun 19, 1996, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.072 mg/l , sample collected Jun 19, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Jun 19, 1996, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.057 mg/l , sample collected Jun 19, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Jun 19, 1996, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.127 mg/l , sample collected Jun 19, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Jun 19, 1996, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.065 mg/l , sample collected Jun 19, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Jun 19, 1996, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.052 mg/l , sample collected Jun 19, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Jun 19, 1996, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Jun 19, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Jun 19, 1996, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.161 mg/l , sample collected Jun 22, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.006 mg/l , sample collected Jun 22, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Jun 22, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Jun 22, 1995, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- Jun 19, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960620-149L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.1 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Jun 19, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960620-148L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.07 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Jun 19, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960620-147L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.072 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Jun 19, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960620-146L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.057 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Jun 19, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960620-145L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.127 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Jun 19, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960620-144L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.065 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Jun 19, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960620-143L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.052 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Jun 19, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960620-142L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Jun 22, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950623-053L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.161 mg/l
-
Lead 1030
- Result
- 0.006 mg/l
-
- Collected
- Jun 22, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950623-052L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
Routine (10).