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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

MS0060013 , City of Mound Bayou

27 of the 58 analytes this system has been tested for have been detected at least once, across 359 samples on record.

The other 31 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 359 samples on record, detections range from December 8, 1993 to November 6, 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 City of Mound Bayou, 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 112 of 149 results Dec 8, 1993 Sep 1, 2025
Lead 1030 Inorganic Chemical 89 of 149 results Dec 8, 1993 Sep 1, 2025
Barium 1010 Inorganic Chemical 39 of 39 results Jul 30, 2002 Jan 10, 2024
Chromium 1020 Inorganic Chemical 28 of 39 results Jul 30, 2002 Jan 10, 2024
Fluoride 1025 Inorganic Chemical 26 of 27 results Jan 28, 2004 Jan 10, 2024
Selenium 1045 Inorganic Chemical 24 of 39 results Nov 15, 2004 Apr 27, 2011
Nickel 1036 Inorganic Chemical 16 of 35 results Feb 14, 2005 Mar 26, 2008
Arsenic 1005 Inorganic Chemical 14 of 39 results Nov 15, 2004 Apr 27, 2011
TTHM 2950 Organic Chemical 12 of 13 results Jun 28, 2007 Nov 6, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Mar 8, 2012 Oct 5, 2012
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 9 of 11 results Jun 28, 2007 Nov 6, 2025
Chloroform 2941 Organic Chemical 8 of 9 results Jun 28, 2007 Nov 6, 2025
Dichloroacetic Acid 2451 Organic Chemical 5 of 6 results Jul 12, 2011 Nov 6, 2025
Bromodichloromethane 2943 Organic Chemical 5 of 9 results Jun 28, 2007 Nov 6, 2025
Sodium 1052 Inorganic Chemical 5 of 5 results Sep 30, 2019 Dec 4, 2024
P-Dichlorobenzene 2969 Organic Chemical 5 of 39 results May 23, 2007 Jun 30, 2010
Trichloroacetic Acid 2452 Organic Chemical 4 of 6 results Jul 12, 2011 Nov 6, 2025
Dibromochloromethane 2944 Organic Chemical 4 of 9 results Jun 28, 2007 Nov 6, 2025
Thallium, Total 1085 Inorganic Chemical 4 of 39 results Apr 23, 2007 Aug 23, 2007
Dibromoacetic Acid 2454 Organic Chemical 2 of 6 results Jul 12, 2011 Nov 6, 2025
Bromoform 2942 Organic Chemical 2 of 9 results Jun 28, 2007 Jul 12, 2011
Cadmium 1015 Inorganic Chemical 2 of 39 results Feb 14, 2005 Apr 23, 2007
Antimony, Total 1074 Inorganic Chemical 2 of 39 results Jan 17, 2006 Jan 17, 2006
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 54 results Jan 18, 2017 Jan 18, 2017
Nitrate 1040 Inorganic Chemical 1 of 54 results Jan 18, 2017 Jan 18, 2017
Mercury 1035 Inorganic Chemical 1 of 39 results Apr 23, 2007 Apr 23, 2007
Carbon Tetrachloride 2982 Organic Chemical 1 of 39 results Mar 20, 2007 Mar 20, 2007

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 61–70 of 359 samples, newest first — collected May 16, 2019 to July 16, 2019. The summary above covers all 359.

26 results from the 10 samples listed here: 19 detected, 7 not detected. Across the whole record it is 431 of 1,885. 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 City of Mound Bayou, every result from 61 to 70 of 359 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
Jul 16, 2019 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190725-085PB
Laboratory
MSDH Lab
0.0182 mg/l , sample collected Jul 16, 2019 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 16, 2019 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Jul 16, 2019 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190725-084PB
Laboratory
MSDH Lab
0.363 mg/l , sample collected Jul 16, 2019 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 16, 2019 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Jul 16, 2019
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190725-083PB
Laboratory
MSDH Lab
0.176 mg/l , sample collected Jul 16, 2019, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0065 mg/l , sample collected Jul 16, 2019, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Jul 16, 2019 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190725-082PB
Laboratory
MSDH Lab
0.1109 mg/l , sample collected Jul 16, 2019 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0025 mg/l , sample collected Jul 16, 2019 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Jul 16, 2019 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190725-073PB
Laboratory
MSDH Lab
0.125 mg/l , sample collected Jul 16, 2019 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0011 mg/l , sample collected Jul 16, 2019 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Jul 16, 2019
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190725-078PB
Laboratory
MSDH Lab
0.0435 mg/l , sample collected Jul 16, 2019, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.001 mg/l , sample collected Jul 16, 2019, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Jul 16, 2019
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190725-080PB
Laboratory
MSDH Lab
0.109 mg/l , sample collected Jul 16, 2019, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0009 mg/l , sample collected Jul 16, 2019, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Jul 16, 2019 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190725-081PB
Laboratory
MSDH Lab
0.0177 mg/l , sample collected Jul 16, 2019 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 16, 2019 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Jul 10, 2019 03:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
190711-020TH
Laboratory
MSDH Lab
23.3 ug/l , sample collected Jul 10, 2019 03:30, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 10, 2019 03:30, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
4.83 ug/l , sample collected Jul 10, 2019 03:30, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.06 ug/l , sample collected Jul 10, 2019 03:30, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
29.2 ug/l , sample collected Jul 10, 2019 03:30, sampling point MRT000 TTHM 2950 Jan 1, 2019 – Dec 31, 2019
Collected
May 16, 2019 05:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
190517-002TH
Laboratory
MSDH Lab
3.04 ug/l , sample collected May 16, 2019 05:30, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 16, 2019 05:30, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 16, 2019 05:30, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 16, 2019 05:30, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
3.04 ug/l , sample collected May 16, 2019 05:30, sampling point MRT000 TTHM 2950 Not recorded

Routine (10).