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
MS0270024 , Humphreys Co-Tchula Lake #7
Humphreys Co-Tchula Lake #7 has been analysed for 60 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.
58 of these are chemical, radiological or water-quality analytes, and their results are on the chemical and radiological samples page — which counts 58, not 60, 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 | 8 | May 19, 2022 |
| 1,1,2-Trichloroethane 2985 | Organic Chemical | 8 | May 19, 2022 |
| 1,1-Dichloroethylene 2977 | Organic Chemical | 8 | May 19, 2022 |
| 1,2,4-Trichlorobenzene 2378 | Organic Chemical | 8 | May 19, 2022 |
| 1,2-Dichloroethane 2980 | Organic Chemical | 8 | May 19, 2022 |
| 1,2-Dichloropropane 2983 | Organic Chemical | 8 | May 19, 2022 |
| Antimony, Total 1074 | Inorganic Chemical | 10 | Feb 10, 2025 |
| Arsenic 1005 | Inorganic Chemical | 10 | Feb 10, 2025 |
| Barium 1010 | Inorganic Chemical | 10 | Feb 10, 2025 |
| Benzene 2990 | Organic Chemical | 8 | May 19, 2022 |
| Beryllium, Total 1075 | Inorganic Chemical | 10 | Feb 10, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 4 | Sep 24, 2014 |
| Bromoform 2942 | Organic Chemical | 4 | Sep 24, 2014 |
| Cadmium 1015 | Inorganic Chemical | 10 | Feb 10, 2025 |
| Carbon Tetrachloride 2982 | Organic Chemical | 8 | May 19, 2022 |
| Chlorobenzene 2989 | Organic Chemical | 8 | May 19, 2022 |
| Chloroform 2941 | Organic Chemical | 4 | Sep 24, 2014 |
| Chromium 1020 | Inorganic Chemical | 10 | Feb 10, 2025 |
| Cis-1,2-Dichloroethylene 2380 | Organic Chemical | 8 | May 19, 2022 |
| Coliform (TCR) 3100 | Organism | 312 | Jul 20, 2026 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 2 | Dec 5, 2011 |
| Combined Uranium 4006 | Radionuclide | 3 | Aug 21, 2018 |
| Copper, Free 1022 | Inorganic Chemical | 112 | Aug 29, 2024 |
| Cyanide 1024 | Inorganic Chemical | 10 | Sep 10, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 4 | Aug 6, 2018 |
| Dibromochloromethane 2944 | Organic Chemical | 4 | Sep 24, 2014 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 | Aug 6, 2018 |
| Dichloromethane 2964 | Organic Chemical | 8 | May 19, 2022 |
| E. Coli 3014 | Organism | 91 | Jul 20, 2026 |
| Ethylbenzene 2992 | Organic Chemical | 8 | May 19, 2022 |
| Fluoride 1025 | Inorganic Chemical | 10 | Feb 10, 2025 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 4 | Sep 10, 2012 |
| Gross Alpha, Excl. Radon & U 4000 | Radionuclide | 2 | Dec 5, 2011 |
| Lead 1030 | Inorganic Chemical | 112 | Aug 29, 2024 |
| Mercury 1035 | Inorganic Chemical | 10 | Feb 10, 2025 |
| Monobromoacetic Acid 2453 | Organic Chemical | 4 | Aug 6, 2018 |
| Monochloroacetic Acid 2450 | Organic Chemical | 4 | Aug 6, 2018 |
| Nickel 1036 | Inorganic Chemical | 10 | Feb 10, 2025 |
| Nitrate 1040 | Inorganic Chemical | 22 | Feb 10, 2025 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 22 | Feb 10, 2025 |
| Nitrite 1041 | Inorganic Chemical | 22 | Feb 10, 2025 |
| O-Dichlorobenzene 2968 | Organic Chemical | 8 | May 19, 2022 |
| P-Dichlorobenzene 2969 | Organic Chemical | 8 | May 19, 2022 |
| Radium-226 4020 | Radionuclide | 2 | Dec 5, 2011 |
| Radium-228 4030 | Radionuclide | 2 | Dec 5, 2011 |
| Selenium 1045 | Inorganic Chemical | 10 | Feb 10, 2025 |
| Sodium 1052 | Inorganic Chemical | 3 | Feb 7, 2024 |
| Styrene 2996 | Organic Chemical | 8 | May 19, 2022 |
| Sulfate 1055 | Inorganic Chemical | 2 | Feb 9, 2004 |
| Tetrachloroethylene 2987 | Organic Chemical | 8 | May 19, 2022 |
| Thallium, Total 1085 | Inorganic Chemical | 10 | Feb 10, 2025 |
| Toluene 2991 | Organic Chemical | 8 | May 19, 2022 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 8 | Feb 10, 2025 |
| Trans-1,2-Dichloroethylene 2979 | Organic Chemical | 8 | May 19, 2022 |
| Trichloroacetic Acid 2452 | Organic Chemical | 4 | Aug 6, 2018 |
| Trichloroethylene 2984 | Organic Chemical | 8 | May 19, 2022 |
| TTHM 2950 | Organic Chemical | 7 | Feb 10, 2025 |
| Uranium-238 4009 | Radionuclide | 1 | Feb 27, 2006 |
| Vinyl Chloride 2976 | Organic Chemical | 8 | May 19, 2022 |
| Xylenes, Total 2955 | Organic Chemical | 8 | May 19, 2022 |
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.