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
MS0090001 , Atlanta Water System, Inc.
21 of the 57 analytes this system has been tested for have been detected at least once, across 323 samples on record.
The other 36 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 323 samples on record, detections range from September 14, 1993 to July 19, 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 |
|---|---|---|---|---|
| Lead 1030 | Inorganic Chemical | 114 of 137 results | Sep 14, 1993 | Sep 12, 2023 |
| Copper, Free 1022 | Inorganic Chemical | 78 of 137 results | Sep 14, 1993 | Sep 12, 2023 |
| Fluoride 1025 | Inorganic Chemical | 24 of 24 results | Jul 23, 2002 | Jul 19, 2026 |
| Barium 1010 | Inorganic Chemical | 24 of 24 results | Jul 23, 2002 | Jun 14, 2026 |
| Selenium 1045 | Inorganic Chemical | 20 of 24 results | Jul 23, 2002 | Jun 14, 2026 |
| Arsenic 1005 | Inorganic Chemical | 14 of 24 results | Jul 23, 2002 | Jan 14, 2025 |
| TTHM 2950 | Organic Chemical | 12 of 22 results | Jul 9, 2007 | Apr 20, 2026 |
| Chromium 1020 | Inorganic Chemical | 12 of 24 results | Jul 23, 2002 | Jan 14, 2025 |
| Nitrate 1040 | Inorganic Chemical | 10 of 51 results | Aug 24, 2005 | Feb 10, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 10 of 10 results | Dec 7, 2011 | Jul 11, 2012 |
| Sodium 1052 | Inorganic Chemical | 8 of 8 results | Oct 1, 2019 | Jun 14, 2026 |
| Bromoform 2942 | Organic Chemical | 8 of 16 results | Jul 9, 2007 | Apr 20, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 7 of 22 results | Jul 9, 2007 | Apr 9, 2025 |
| Nickel 1036 | Inorganic Chemical | 7 of 22 results | Feb 14, 2005 | Jan 14, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 6 of 16 results | Jul 9, 2007 | Apr 20, 2026 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 6 of 51 results | Aug 24, 2005 | Feb 10, 2025 |
| Nitrite 1041 | Inorganic Chemical | 2 of 51 results | Feb 10, 2025 | Feb 10, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 2 of 15 results | Jul 15, 2020 | Dec 12, 2023 |
| Xylenes, Total 2955 | Organic Chemical | 2 of 30 results | Jan 28, 2004 | Sep 1, 2011 |
| Cyanide 1024 | Inorganic Chemical | 1 of 21 results | Feb 8, 2021 | Feb 8, 2021 |
| Dichloroacetic Acid 2451 | Organic Chemical | 1 of 15 results | Jul 12, 2011 | Jul 12, 2011 |
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 241–250 of 323 samples, newest first — collected September 11, 2001 to January 28, 2004. The summary above covers all 323.
56 results from the 10 samples listed here: 19 detected, 37 not detected. Across the whole record it is 368 of 1,586. 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 |
|---|---|---|
|
||
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | 1,2,4-Trichlorobenzene 2378 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | Cis-1,2-Dichloroethylene 2380 | Jan 1, 2004 – Mar 31, 2004 |
| 2.19 ug/l , sample collected Jan 28, 2004, sampling point TF101 | Xylenes, Total 2955 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | Dichloromethane 2964 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | O-Dichlorobenzene 2968 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | P-Dichlorobenzene 2969 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | Vinyl Chloride 2976 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | 1,1-Dichloroethylene 2977 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | Trans-1,2-Dichloroethylene 2979 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | 1,2-Dichloroethane 2980 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | 1,1,1-Trichloroethane 2981 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | Carbon Tetrachloride 2982 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | 1,2-Dichloropropane 2983 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | Trichloroethylene 2984 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | 1,1,2-Trichloroethane 2985 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | Tetrachloroethylene 2987 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | Chlorobenzene 2989 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | Benzene 2990 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | Toluene 2991 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | Ethylbenzene 2992 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 | Styrene 2996 | Jan 1, 2004 – Mar 31, 2004 |
|
||
| 0.001 mg/l , sample collected Jan 12, 2004, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| 0.027 mg/l , sample collected Jan 12, 2004, sampling point TF101 | Barium 1010 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| 0.002 mg/l , sample collected Jan 12, 2004, sampling point TF101 | Chromium 1020 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| 1.1 mg/l , sample collected Jan 12, 2004, sampling point TF101 | Fluoride 1025 EPA method 300.0 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF101 | Mercury 1035 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| 0.003 mg/l , sample collected Jan 12, 2004, sampling point TF101 | Selenium 1045 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
| Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF101 | Sulfate 1055 EPA method 300.0 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF101 | 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 Jan 12, 2004, sampling point TF101 | 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 Jan 12, 2004, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2002 – Dec 31, 2004 |
|
||
| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Jan 12, 2004, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2002 – Dec 31, 2004 |
|
||
| 0.001 mg/l , sample collected Jul 23, 2002, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Not recorded |
| 0.033 mg/l , sample collected Jul 23, 2002, sampling point TF101 | Barium 1010 EPA method 200.8 | Not recorded |
| Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Not recorded |
| 0.011 mg/l , sample collected Jul 23, 2002, sampling point TF101 | Chromium 1020 EPA method 200.8 | Not recorded |
| 0.87 mg/l , sample collected Jul 23, 2002, sampling point TF101 | Fluoride 1025 EPA method 300.0 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF101 | Mercury 1035 EPA method 200.8 | Not recorded |
| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| 0.002 mg/l , sample collected Jul 23, 2002, sampling point TF101 | Selenium 1045 EPA method 200.8 | Not recorded |
| Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF101 | Sulfate 1055 EPA method 300.0 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF101 | Antimony, Total 1074 EPA method 200.8 | Not recorded |
| Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF101 | Beryllium, Total 1075 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Not recorded |
|
||
| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Feb 12, 2002, sampling point TF101 | Cyanide 1024 EPA method 335.4 | Jan 1, 2002 – Dec 31, 2004 |
|
||
| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Cyanide 1024 EPA method 335.4 | Jan 1, 2002 – Dec 31, 2004 |
|
||
| 0.135 mg/l , sample collected Sep 12, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Sep 12, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.163 mg/l , sample collected Sep 12, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Sep 12, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.866 mg/l , sample collected Sep 11, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Sep 11, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.028 mg/l , sample collected Sep 11, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Sep 11, 2001, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- Jan 28, 2004
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 040129-046VO
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2004 – Mar 31, 2004
-
1,2,4-Trichlorobenzene 2378
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Cis-1,2-Dichloroethylene 2380
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Xylenes, Total 2955
- Result
- 2.19 ug/l
-
Dichloromethane 2964
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
O-Dichlorobenzene 2968
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
P-Dichlorobenzene 2969
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Vinyl Chloride 2976
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,1-Dichloroethylene 2977
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Trans-1,2-Dichloroethylene 2979
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,2-Dichloroethane 2980
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,1,1-Trichloroethane 2981
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Carbon Tetrachloride 2982
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,2-Dichloropropane 2983
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Trichloroethylene 2984
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,1,2-Trichloroethane 2985
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Tetrachloroethylene 2987
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Chlorobenzene 2989
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Benzene 2990
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Toluene 2991
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Ethylbenzene 2992
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Styrene 2996
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
- Collected
- Jan 12, 2004
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 040113-101IN
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- 0.001 mg/l
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Barium 1010 EPA method 200.8
- Result
- 0.027 mg/l
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Chromium 1020 EPA method 200.8
- Result
- 0.002 mg/l
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Fluoride 1025 EPA method 300.0
- Result
- 1.1 mg/l
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- 0.003 mg/l
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Sulfate 1055 EPA method 300.0
- Result
- Not detected below 2.5 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0003 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
- Collected
- Jan 12, 2004
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 040113-081CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
-
- Collected
- Jul 23, 2002
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 020724-016IN
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Arsenic 1005 EPA method 200.8
- Result
- 0.001 mg/l
-
Barium 1010 EPA method 200.8
- Result
- 0.033 mg/l
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0001 mg/l Minimum Reporting Level
-
Chromium 1020 EPA method 200.8
- Result
- 0.011 mg/l
-
Fluoride 1025 EPA method 300.0
- Result
- 0.87 mg/l
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.005 mg/l Minimum Reporting Level
-
Selenium 1045 EPA method 200.8
- Result
- 0.002 mg/l
-
Sulfate 1055 EPA method 300.0
- Result
- Not detected below 2.5 mg/l Minimum Reporting Level
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0003 mg/l Minimum Reporting Level
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Feb 12, 2002
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 020213-009CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cyanide 1024 EPA method 335.4
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
-
- Collected
- Jan 29, 2002
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 020130-111CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cyanide 1024 EPA method 335.4
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
-
- Collected
- Sep 12, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010913-043PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.135 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Sep 12, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010913-042PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.163 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Sep 11, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010912-140PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.866 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Sep 11, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010912-139PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.028 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
Routine (10).