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.
Analytes tested for
MS0170022 , City of Horn Lake
City of Horn Lake has been analysed for 92 analytes.
This is what has been looked for, not what has been found. Which of them have been detected, and when, is on the sample results page.
The agency also publishes one analyte list across every system it serves. That list carries no results and no counts, and it leaves out coliform and the other microbiological analytes — which this page does not.
90 of these are chemical, radiological or water-quality analytes, and their results are on the chemical and radiological samples page — which counts 90, not 92, for that reason. The other 2 — Coliform (TCR) and E. Coli — are organisms, and their records live with the coliform and microbial samples.
| Analyte | Kind | Results on record | Last collected |
|---|---|---|---|
| 1,1,1-Trichloroethane 2981 | Organic Chemical | 90 | Jun 30, 2026 |
| 1,1,2-Trichloroethane 2985 | Organic Chemical | 90 | Jun 30, 2026 |
| 1,1-Dichloroethylene 2977 | Organic Chemical | 90 | Jun 30, 2026 |
| 1,2,4-Trichlorobenzene 2378 | Organic Chemical | 90 | Jun 30, 2026 |
| 1,2-Dibromo-3-Chloropropane 2931 | Organic Chemical | 1 | Nov 1, 2010 |
| 1,2-Dichloroethane 2980 | Organic Chemical | 90 | Jun 30, 2026 |
| 1,2-Dichloropropane 2983 | Organic Chemical | 90 | Jun 30, 2026 |
| Aldicarb 2047 | Organic Chemical | 1 | Oct 4, 2010 |
| Aldicarb Sulfone 2044 | Organic Chemical | 1 | Oct 4, 2010 |
| Aldicarb Sulfoxide 2043 | Organic Chemical | 1 | Oct 4, 2010 |
| Antimony, Total 1074 | Inorganic Chemical | 53 | Feb 3, 2025 |
| Aroclor 1016 2388 | Organic Chemical | 1 | Nov 1, 2010 |
| Aroclor 1221 2390 | Organic Chemical | 1 | Nov 1, 2010 |
| Aroclor 1232 2392 | Organic Chemical | 1 | Nov 1, 2010 |
| Aroclor 1242 2394 | Organic Chemical | 1 | Nov 1, 2010 |
| Aroclor 1248 2396 | Organic Chemical | 1 | Nov 1, 2010 |
| Aroclor 1254 2398 | Organic Chemical | 1 | Nov 1, 2010 |
| Aroclor 1260 2400 | Organic Chemical | 1 | Nov 1, 2010 |
| Arsenic 1005 | Inorganic Chemical | 53 | Feb 3, 2025 |
| Atrazine 2050 | Organic Chemical | 1 | Oct 4, 2010 |
| Barium 1010 | Inorganic Chemical | 53 | Feb 3, 2025 |
| Benzene 2990 | Organic Chemical | 90 | Jun 30, 2026 |
| Benzo(a)pyrene 2306 | Organic Chemical | 1 | Nov 8, 2010 |
| Beryllium, Total 1075 | Inorganic Chemical | 53 | Feb 3, 2025 |
| BHC-Gamma 2010 | Organic Chemical | 1 | Nov 1, 2010 |
| Bromodichloromethane 2943 | Organic Chemical | 45 | Jun 30, 2026 |
| Bromoform 2942 | Organic Chemical | 45 | Jun 30, 2026 |
| Cadmium 1015 | Inorganic Chemical | 53 | Feb 3, 2025 |
| Carbofuran 2046 | Organic Chemical | 1 | Oct 4, 2010 |
| Carbon Tetrachloride 2982 | Organic Chemical | 90 | Jun 30, 2026 |
| Chlordane 2959 | Organic Chemical | 1 | Nov 1, 2010 |
| Chlorobenzene 2989 | Organic Chemical | 90 | Jun 30, 2026 |
| Chloroform 2941 | Organic Chemical | 45 | Jun 30, 2026 |
| Chromium 1020 | Inorganic Chemical | 53 | Feb 3, 2025 |
| Cis-1,2-Dichloroethylene 2380 | Organic Chemical | 90 | Jun 30, 2026 |
| Coliform (TCR) 3100 | Organism | 3,688 | Aug 10, 2026 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 14 | Jun 25, 2019 |
| Combined Uranium 4006 | Radionuclide | 12 | Jun 4, 2018 |
| Copper, Free 1022 | Inorganic Chemical | 376 | Jul 23, 2024 |
| Cyanide 1024 | Inorganic Chemical | 49 | Aug 18, 2025 |
| DI(2-Ethylhexyl) Adipate 2035 | Organic Chemical | 1 | Oct 4, 2010 |
| DI(2-Ethylhexyl) Phthalate 2039 | Organic Chemical | 1 | Oct 4, 2010 |
| Dibromoacetic Acid 2454 | Organic Chemical | 40 | Jun 30, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 45 | Jun 30, 2026 |
| Dichloroacetic Acid 2451 | Organic Chemical | 40 | Jun 30, 2026 |
| Dichloromethane 2964 | Organic Chemical | 90 | Jun 30, 2026 |
| Diquat 2032 | Organic Chemical | 1 | Oct 26, 2010 |
| E. Coli 3014 | Organism | 1,301 | Aug 10, 2026 |
| Endrin 2005 | Organic Chemical | 1 | Nov 1, 2010 |
| Ethylbenzene 2992 | Organic Chemical | 90 | Jun 30, 2026 |
| Ethylene Dibromide 2946 | Organic Chemical | 1 | Nov 1, 2010 |
| Fluoride 1025 | Inorganic Chemical | 55 | Feb 3, 2025 |
| Glyphosate 2034 | Organic Chemical | 1 | Oct 4, 2010 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 8 | Mar 3, 2009 |
| Gross Alpha, Excl. Radon & U 4000 | Radionuclide | 8 | Mar 3, 2009 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 6 | Jun 25, 2019 |
| Heptachlor 2065 | Organic Chemical | 1 | Nov 1, 2010 |
| Heptachlor Epoxide 2067 | Organic Chemical | 1 | Nov 1, 2010 |
| Hexachlorobenzene 2274 | Organic Chemical | 1 | Nov 1, 2010 |
| Hexachlorocyclopentadiene 2042 | Organic Chemical | 1 | Nov 1, 2010 |
| Lasso 2051 | Organic Chemical | 1 | Oct 4, 2010 |
| Lead 1030 | Inorganic Chemical | 376 | Jul 23, 2024 |
| Mercury 1035 | Inorganic Chemical | 53 | Feb 3, 2025 |
| Methoxychlor 2015 | Organic Chemical | 1 | Nov 1, 2010 |
| Monobromoacetic Acid 2453 | Organic Chemical | 40 | Jun 30, 2026 |
| Monochloroacetic Acid 2450 | Organic Chemical | 40 | Jun 30, 2026 |
| Nickel 1036 | Inorganic Chemical | 53 | Feb 3, 2025 |
| Nitrate 1040 | Inorganic Chemical | 100 | Jun 2, 2026 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 100 | Jun 2, 2026 |
| Nitrite 1041 | Inorganic Chemical | 100 | Jun 2, 2026 |
| O-Dichlorobenzene 2968 | Organic Chemical | 90 | Jun 30, 2026 |
| Oxamyl 2036 | Organic Chemical | 1 | Oct 4, 2010 |
| P-Dichlorobenzene 2969 | Organic Chemical | 90 | Jun 30, 2026 |
| Radium-226 4020 | Radionuclide | 14 | Jun 25, 2019 |
| Radium-228 4030 | Radionuclide | 14 | Jun 25, 2019 |
| Selenium 1045 | Inorganic Chemical | 53 | Feb 3, 2025 |
| Simazine 2037 | Organic Chemical | 1 | Oct 4, 2010 |
| Sodium 1052 | Inorganic Chemical | 12 | Oct 14, 2024 |
| Styrene 2996 | Organic Chemical | 90 | Jun 30, 2026 |
| Sulfate 1055 | Inorganic Chemical | 10 | Jan 28, 2004 |
| Tetrachloroethylene 2987 | Organic Chemical | 90 | Jun 30, 2026 |
| Thallium, Total 1085 | Inorganic Chemical | 53 | Feb 3, 2025 |
| Toluene 2991 | Organic Chemical | 90 | Jun 30, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 62 | Jun 30, 2026 |
| Toxaphene 2020 | Organic Chemical | 1 | Nov 1, 2010 |
| Trans-1,2-Dichloroethylene 2979 | Organic Chemical | 90 | Jun 30, 2026 |
| Trichloroacetic Acid 2452 | Organic Chemical | 40 | Jun 30, 2026 |
| Trichloroethylene 2984 | Organic Chemical | 90 | Jun 30, 2026 |
| TTHM 2950 | Organic Chemical | 64 | Jun 30, 2026 |
| Uranium-238 4009 | Radionuclide | 6 | Jan 25, 2006 |
| Vinyl Chloride 2976 | Organic Chemical | 90 | Jun 30, 2026 |
| Xylenes, Total 2955 | Organic Chemical | 90 | Jun 30, 2026 |
A result is one laboratory analysis for one analyte on one sample, whether or not anything was found. Counts cover every Accepted or Validated result on record, with no date range applied.
What an analyte is
“Analytes are contaminants and other elements (some of which are not necessarily contaminants), for which the drinking water is being analyzed.”
From the help text published with these pages.