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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.

Every analyte ever detected for Atlanta Water System, Inc., with how many results found it and when it was first and last detected. Covers the whole record, not only 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 31–40 of 323 samples, newest first — collected September 12, 2023 to December 12, 2023. The summary above covers all 323.

29 results from the 10 samples listed here: 18 detected, 11 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.

We withheld the location of 10 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for Atlanta Water System, Inc., every result from 31 to 40 of 323 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Dec 12, 2023 08:10
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-87697-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 08:10, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 08:10, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 08:10, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 08:10, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
1 ug/l , sample collected Dec 12, 2023 08:10, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 08:10, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 08:10, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
1.8 ug/l , sample collected Dec 12, 2023 08:10, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 12, 2023 08:10, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.1 ug/l , sample collected Dec 12, 2023 08:10, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
2.9 ug/l , sample collected Dec 12, 2023 08:10, sampling point SM1 TTHM 2950 EPA method 524.2 Oct 1, 2023 – Dec 31, 2023
Collected
Sep 12, 2023 06:10
Sampling point
LC0004 Location withheld
Sample type
Routine
Lab sample
PB-230913-040
Laboratory
MSDH Lab
0.0158 mg/l , sample collected Sep 12, 2023 06:10, sampling point LC0004 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.7 ug/l , sample collected Sep 12, 2023 06:10, sampling point LC0004 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 12, 2023 06:15
Sampling point
LC0008 Location withheld
Sample type
Routine
Lab sample
PB-230913-039
Laboratory
MSDH Lab
0.0641 mg/l , sample collected Sep 12, 2023 06:15, sampling point LC0008 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 12, 2023 06:15, sampling point LC0008 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 12, 2023 07:00
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-230913-038
Laboratory
MSDH Lab
0.108 mg/l , sample collected Sep 12, 2023 07:00, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 12, 2023 07:00, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 12, 2023 07:00
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-230913-037
Laboratory
MSDH Lab
0.124 mg/l , sample collected Sep 12, 2023 07:00, sampling point LC0001 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.5 ug/l , sample collected Sep 12, 2023 07:00, sampling point LC0001 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 12, 2023 07:15
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-230913-036
Laboratory
MSDH Lab
0.057 mg/l , sample collected Sep 12, 2023 07:15, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.7 ug/l , sample collected Sep 12, 2023 07:15, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 12, 2023 06:25
Sampling point
LC0012 Location withheld
Sample type
Routine
Lab sample
PB-230913-035
Laboratory
MSDH Lab
0.0533 mg/l , sample collected Sep 12, 2023 06:25, sampling point LC0012 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 12, 2023 06:25, sampling point LC0012 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 12, 2023 05:38
Sampling point
LC0010 Location withheld
Sample type
Routine
Lab sample
PB-230913-034
Laboratory
MSDH Lab
0.0442 mg/l , sample collected Sep 12, 2023 05:38, sampling point LC0010 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 12, 2023 05:38, sampling point LC0010 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 12, 2023 07:00
Sampling point
LC0007 Location withheld
Sample type
Routine
Lab sample
PB-230913-033
Laboratory
MSDH Lab
0.0254 mg/l , sample collected Sep 12, 2023 07:00, sampling point LC0007 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
1.2 ug/l , sample collected Sep 12, 2023 07:00, sampling point LC0007 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 12, 2023 09:11
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-230913-032
Laboratory
MSDH Lab
0.0827 mg/l , sample collected Sep 12, 2023 09:11, sampling point LC0005 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.6 ug/l , sample collected Sep 12, 2023 09:11, sampling point LC0005 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023

Routine (10).