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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 31–40 of 165 samples, newest first — collected October 5, 2021 to March 13, 2023. The summary above covers all 165.

44 results from the 10 samples listed here: 6 detected, 38 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 31 to 40 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
Mar 13, 2023 15:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-230314-059
Laboratory
MSDH Lab
0.156 mg/l , sample collected Mar 13, 2023 15:30, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
0.156 mg/l , sample collected Mar 13, 2023 15:30, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 15:30, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Nov 29, 2022 14:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
VO-221130-016
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 Dichloromethane 2964 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 Benzene 2990 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 Toluene 2991 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 29, 2022 14:00, sampling point TF080 Styrene 2996 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Collected
Oct 18, 2022 12:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-221019-005
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 12:30, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0204 mg/l , sample collected Oct 18, 2022 12:30, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 12:30, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 12:30, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.176 mg/l , sample collected Oct 18, 2022 12:30, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 12:30, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 12:30, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 12:30, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 12:30, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 12:30, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 12:30, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Sep 26, 2022 15:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
CN-220927-001
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 26, 2022 15:30, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
Jun 27, 2022 15:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-220628-019
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 27, 2022 15:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Jun 27, 2022 15:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-220628-019
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 27, 2022 15:30, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Mar 21, 2022 15:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-220322-006
Laboratory
MSDH Lab
0.162 mg/l , sample collected Mar 21, 2022 15:15, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
0.162 mg/l , sample collected Mar 21, 2022 15:15, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 21, 2022 15:15, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Nov 16, 2021 14:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-211117-011
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 16, 2021 14:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Nov 16, 2021 14:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-211117-011
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 16, 2021 14:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Oct 5, 2021 14:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
RU-211006-015
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 5, 2021 14:15, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021

Routine (10).