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
MS0090001 , Atlanta Water System, Inc.
Atlanta Water System, Inc. has been analysed for 59 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.
57 of these are chemical, radiological or water-quality analytes, and their results are on the chemical and radiological samples page — which counts 57, not 59, 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 | 30 | Jun 22, 2026 |
| 1,1,2-Trichloroethane 2985 | Organic Chemical | 30 | Jun 22, 2026 |
| 1,1-Dichloroethylene 2977 | Organic Chemical | 30 | Jun 22, 2026 |
| 1,2,4-Trichlorobenzene 2378 | Organic Chemical | 30 | Jun 22, 2026 |
| 1,2-Dichloroethane 2980 | Organic Chemical | 30 | Jun 22, 2026 |
| 1,2-Dichloropropane 2983 | Organic Chemical | 30 | Jun 22, 2026 |
| Antimony, Total 1074 | Inorganic Chemical | 24 | Jun 14, 2026 |
| Arsenic 1005 | Inorganic Chemical | 24 | Jun 14, 2026 |
| Barium 1010 | Inorganic Chemical | 24 | Jun 14, 2026 |
| Benzene 2990 | Organic Chemical | 30 | Jun 22, 2026 |
| Beryllium, Total 1075 | Inorganic Chemical | 24 | Jun 14, 2026 |
| Bromodichloromethane 2943 | Organic Chemical | 16 | Apr 20, 2026 |
| Bromoform 2942 | Organic Chemical | 16 | Apr 20, 2026 |
| Cadmium 1015 | Inorganic Chemical | 24 | Jun 14, 2026 |
| Carbon Tetrachloride 2982 | Organic Chemical | 30 | Jun 22, 2026 |
| Chlorobenzene 2989 | Organic Chemical | 30 | Jun 22, 2026 |
| Chloroform 2941 | Organic Chemical | 16 | Apr 20, 2026 |
| Chromium 1020 | Inorganic Chemical | 24 | Jun 14, 2026 |
| Cis-1,2-Dichloroethylene 2380 | Organic Chemical | 30 | Jun 22, 2026 |
| Coliform (TCR) 3100 | Organism | 471 | Aug 5, 2026 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 10 | Jul 11, 2012 |
| Combined Uranium 4006 | Radionuclide | 8 | Jul 9, 2018 |
| Copper, Free 1022 | Inorganic Chemical | 137 | Sep 12, 2023 |
| Cyanide 1024 | Inorganic Chemical | 21 | May 19, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 15 | Apr 20, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 16 | Apr 20, 2026 |
| Dichloroacetic Acid 2451 | Organic Chemical | 15 | Apr 20, 2026 |
| Dichloromethane 2964 | Organic Chemical | 30 | Jun 22, 2026 |
| E. Coli 3014 | Organism | 152 | Aug 5, 2026 |
| Ethylbenzene 2992 | Organic Chemical | 30 | Jun 22, 2026 |
| Fluoride 1025 | Inorganic Chemical | 24 | Jul 19, 2026 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 10 | Jul 11, 2012 |
| Lead 1030 | Inorganic Chemical | 137 | Sep 12, 2023 |
| Mercury 1035 | Inorganic Chemical | 24 | Jun 14, 2026 |
| Monobromoacetic Acid 2453 | Organic Chemical | 15 | Apr 20, 2026 |
| Monochloroacetic Acid 2450 | Organic Chemical | 15 | Apr 20, 2026 |
| Nickel 1036 | Inorganic Chemical | 22 | Jan 14, 2025 |
| Nitrate 1040 | Inorganic Chemical | 51 | Feb 2, 2026 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 51 | Feb 2, 2026 |
| Nitrite 1041 | Inorganic Chemical | 51 | Feb 2, 2026 |
| O-Dichlorobenzene 2968 | Organic Chemical | 30 | Jun 22, 2026 |
| P-Dichlorobenzene 2969 | Organic Chemical | 30 | Jun 22, 2026 |
| Radium-226 4020 | Radionuclide | 10 | Jul 11, 2012 |
| Radium-228 4030 | Radionuclide | 10 | Jul 11, 2012 |
| Selenium 1045 | Inorganic Chemical | 24 | Jun 14, 2026 |
| Sodium 1052 | Inorganic Chemical | 8 | Jun 14, 2026 |
| Styrene 2996 | Organic Chemical | 30 | Jun 22, 2026 |
| Sulfate 1055 | Inorganic Chemical | 2 | Jan 12, 2004 |
| Tetrachloroethylene 2987 | Organic Chemical | 30 | Jun 22, 2026 |
| Thallium, Total 1085 | Inorganic Chemical | 24 | Jun 14, 2026 |
| Toluene 2991 | Organic Chemical | 30 | Jun 22, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 22 | Apr 20, 2026 |
| Trans-1,2-Dichloroethylene 2979 | Organic Chemical | 30 | Jun 22, 2026 |
| Trichloroacetic Acid 2452 | Organic Chemical | 15 | Apr 20, 2026 |
| Trichloroethylene 2984 | Organic Chemical | 30 | Jun 22, 2026 |
| TTHM 2950 | Organic Chemical | 22 | Apr 20, 2026 |
| Uranium-238 4009 | Radionuclide | 5 | Jan 17, 2006 |
| Vinyl Chloride 2976 | Organic Chemical | 30 | Jun 22, 2026 |
| Xylenes, Total 2955 | Organic Chemical | 30 | Jun 22, 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.