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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

MS0640007 , City of Mendenhall

24 of the 58 analytes this system has been tested for have been detected at least once, across 165 samples on record.

The other 34 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 165 samples on record, detections range from September 10, 2002 to November 12, 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 Mendenhall, 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 64 of 64 results Aug 17, 2007 Sep 5, 2023
Lead 1030 Inorganic Chemical 31 of 64 results Aug 17, 2007 Oct 8, 2020
Nitrate-Nitrite 1038 Inorganic Chemical 17 of 22 results Jun 16, 2004 Apr 7, 2025
Nitrate 1040 Inorganic Chemical 17 of 22 results Jun 16, 2004 Apr 7, 2025
TTHM 2950 Organic Chemical 13 of 20 results Sep 17, 2007 Nov 12, 2025
Dibromochloromethane 2944 Organic Chemical 11 of 15 results Sep 26, 2016 Nov 12, 2025
Fluoride 1025 Inorganic Chemical 11 of 11 results Oct 22, 2003 Mar 24, 2025
Barium 1010 Inorganic Chemical 10 of 10 results Oct 22, 2003 Mar 24, 2025
Bromodichloromethane 2943 Organic Chemical 5 of 15 results Sep 26, 2016 Aug 20, 2024
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 15, 2011 Aug 2, 2012
Combined Radium (-226 & -228) 4010 Radionuclide 5 of 5 results Dec 15, 2011 Aug 2, 2012
Radium-228 4030 Radionuclide 5 of 5 results Dec 15, 2011 Aug 2, 2012
Chromium 1020 Inorganic Chemical 4 of 10 results Apr 10, 2006 May 8, 2019
Chloroform 2941 Organic Chemical 3 of 15 results Sep 26, 2016 Aug 20, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 18 results Jul 7, 2010 Oct 13, 2020
Sodium 1052 Inorganic Chemical 2 of 2 results Sep 19, 2019 Dec 12, 2023
Monobromoacetic Acid 2453 Organic Chemical 2 of 12 results Sep 26, 2016 Oct 13, 2020
Nickel 1036 Inorganic Chemical 1 of 10 results May 8, 2019 May 8, 2019
Dichloroacetic Acid 2451 Organic Chemical 1 of 12 results Sep 26, 2016 Sep 26, 2016
Trichloroacetic Acid 2452 Organic Chemical 1 of 12 results Sep 26, 2016 Sep 26, 2016
Selenium 1045 Inorganic Chemical 1 of 10 results Feb 8, 2010 Feb 8, 2010
Cadmium 1015 Inorganic Chemical 1 of 10 results Apr 10, 2006 Apr 10, 2006
Sulfate 1055 Inorganic Chemical 1 of 1 result Oct 22, 2003 Oct 22, 2003
P-Dichlorobenzene 2969 Organic Chemical 1 of 14 results Sep 10, 2002 Sep 10, 2002

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 91–100 of 165 samples, newest first — collected April 24, 2012 to May 19, 2014. The summary above covers all 165.

32 results from the 10 samples listed here: 13 detected, 19 not detected. Across the whole record it is 215 of 797. 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 Mendenhall, every result from 91 to 100 of 165 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
May 19, 2014 14:20
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
140520-006NI
Laboratory
MSDH Lab
0.13 mg/l , sample collected May 19, 2014 14:20, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
0.13 mg/l , sample collected May 19, 2014 14:20, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 19, 2014 14:20, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Collected
Sep 5, 2013 01:40
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130906-004TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 5, 2013 01:40, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 5, 2013 01:40, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 5, 2013 01:40, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 5, 2013 01:40, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 4 ug/l Minimum Reporting Level , sample collected Sep 5, 2013 01:40, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2011 – Dec 31, 2013
Collected
Sep 5, 2013 01:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130906-004HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 5, 2013 01:30, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 5, 2013 01:30, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 5, 2013 01:30, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 5, 2013 01:30, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 5, 2013 01:30, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Sep 5, 2013 01:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 22, 2013
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
130823-002CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 22, 2013, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
May 6, 2013 01:51
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
130507-042NI
Laboratory
MSDH Lab
0.15 mg/l , sample collected May 6, 2013 01:51, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2013 – Dec 31, 2013
0.15 mg/l , sample collected May 6, 2013 01:51, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2013 – Dec 31, 2013
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 6, 2013 01:51, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2013 – Dec 31, 2013
Collected
Aug 2, 2012 13:20
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
201211120002
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected Aug 2, 2012 13:20, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
0.5 pci/l , sample collected Aug 2, 2012 13:20, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.269 pci/l Minimum Reporting Level , sample collected Aug 2, 2012 13:20, sampling point TF080 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
0.5 pci/l , sample collected Aug 2, 2012 13:20, sampling point TF080 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 1, 2012 08:10
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120802-088
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected Aug 1, 2012 08:10, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
0.5 pci/l , sample collected Aug 1, 2012 08:10, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.269 pci/l Minimum Reporting Level , sample collected Aug 1, 2012 08:10, sampling point TF080 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
0.5 pci/l , sample collected Aug 1, 2012 08:10, sampling point TF080 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 1, 2012 08:25
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120802-088RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 1, 2012 08:25, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Apr 24, 2012 13:05
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120425-056
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected Apr 24, 2012 13:05, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
0.5 pci/l , sample collected Apr 24, 2012 13:05, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.269 pci/l Minimum Reporting Level , sample collected Apr 24, 2012 13:05, sampling point TF080 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
0.5 pci/l , sample collected Apr 24, 2012 13:05, sampling point TF080 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
Apr 24, 2012 13:12
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120425-056RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 24, 2012 13:12, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012

Routine (10).