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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

MS0090008 , Southeast Chickasaw W/A #1

20 of the 57 analytes this system has been tested for have been detected at least once, across 410 samples on record.

The other 37 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 410 samples on record, detections range from December 30, 1993 to December 8, 2025. 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 Southeast Chickasaw W/A #1, 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
Copper, Free 1022 Inorganic Chemical 118 of 157 results Dec 30, 1993 Jun 10, 2025
Lead 1030 Inorganic Chemical 114 of 157 results Dec 30, 1993 Jun 10, 2025
Barium 1010 Inorganic Chemical 33 of 33 results Sep 8, 2003 Jan 13, 2025
Fluoride 1025 Inorganic Chemical 33 of 33 results Sep 8, 2003 Jan 13, 2025
TTHM 2950 Organic Chemical 22 of 32 results May 10, 2004 Dec 8, 2025
Chromium 1020 Inorganic Chemical 21 of 33 results Jan 12, 2004 Jan 13, 2025
Arsenic 1005 Inorganic Chemical 17 of 33 results Feb 14, 2005 Jan 13, 2025
Selenium 1045 Inorganic Chemical 15 of 33 results Sep 8, 2003 Mar 24, 2008
Nickel 1036 Inorganic Chemical 12 of 33 results Jan 12, 2004 Jan 13, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 9 of 32 results Jul 9, 2007 Jan 23, 2023
Sodium 1052 Inorganic Chemical 8 of 8 results Sep 18, 2019 Oct 14, 2024
Bromoform 2942 Organic Chemical 7 of 8 results Jul 11, 2011 Dec 8, 2025
Dibromochloromethane 2944 Organic Chemical 5 of 8 results Jul 16, 2018 Dec 8, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 15 results Mar 6, 2012 Oct 2, 2012
Nitrite 1041 Inorganic Chemical 3 of 66 results Jan 10, 2022 Jan 10, 2022
Monochloroacetic Acid 2450 Organic Chemical 3 of 7 results Aug 11, 2014 Jul 8, 2019
Cadmium 1015 Inorganic Chemical 3 of 33 results Feb 14, 2005 Feb 14, 2005
Chloroform 2941 Organic Chemical 1 of 8 results Aug 11, 2014 Aug 11, 2014
Cyanide 1024 Inorganic Chemical 1 of 33 results Jun 27, 2011 Jun 27, 2011
Monobromoacetic Acid 2453 Organic Chemical 1 of 7 results Aug 11, 2008 Aug 11, 2008

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 191–200 of 410 samples, newest first — collected June 27, 2012 to October 1, 2012. The summary above covers all 410.

48 results from the 10 samples listed here: 2 detected, 46 not detected. Across the whole record it is 431 of 1,571. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for Southeast Chickasaw W/A #1, every result from 191 to 200 of 410 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
Oct 1, 2012 12:30
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
121002-059
Laboratory
Radiation Safety Engineering
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 12:30, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.622 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 12:30, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.622 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 12:30, sampling point TF103 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.38 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 12:30, sampling point TF103 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 1, 2012 12:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
121002-058
Laboratory
Radiation Safety Engineering
0.7 pci/l , sample collected Oct 1, 2012 12:00, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 12:00, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.386 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 12:00, sampling point TF102 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 12:00, sampling point TF102 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 1, 2012 13:02
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
121002-021
Laboratory
Radiation Safety Engineering
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 13:02, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 13:02, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.376 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 13:02, sampling point TF101 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 13:02, sampling point TF101 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Jul 30, 2012 13:20
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120731-116
Laboratory
Radiation Safety Engineering
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 13:20, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.622 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 13:20, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.622 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 13:20, sampling point TF103 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.38 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 13:20, sampling point TF103 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 30, 2012 12:50
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120731-067
Laboratory
Radiation Safety Engineering
0.7 pci/l , sample collected Jul 30, 2012 12:50, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 12:50, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.386 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 12:50, sampling point TF102 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 12:50, sampling point TF102 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 30, 2012 13:55
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120731-066
Laboratory
Radiation Safety Engineering
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 13:55, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 13:55, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.376 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 13:55, sampling point TF101 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 13:55, sampling point TF101 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 30, 2012 13:20
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120731-116RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 30, 2012 13:20, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 30, 2012 12:50
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120731-067RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 30, 2012 12:50, sampling point TF102 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 30, 2012 13:55
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120731-066RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 30, 2012 13:55, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Jun 27, 2012 01:40
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120628-017VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 Dichloromethane 2964 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 Benzene 2990 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 Toluene 2991 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 27, 2012 01:40, sampling point TF103 Styrene 2996 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016

Routine (10).