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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

MS0270018 , Humphreys Co. W/A #1-Midnight

35 of the 72 analytes this system has been tested for have been detected at least once, across 287 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 287 samples on record, detections range from August 10, 1993 to April 7, 2025. These figures cover the whole record; the list of samples further down is narrowed.

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 Humphreys Co. W/A #1-Midnight, 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 76 of 130 results Aug 12, 1993 Jul 11, 2023
Lead 1030 Inorganic Chemical 44 of 130 results Aug 10, 1993 Jul 11, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 23 of 23 results Jun 9, 2004 Apr 7, 2025
Barium 1010 Inorganic Chemical 22 of 22 results Sep 24, 2003 Apr 7, 2025
TTHM 2950 Organic Chemical 19 of 21 results Jun 9, 2004 Apr 7, 2025
Dichloroacetic Acid 2451 Organic Chemical 14 of 14 results Jun 26, 2008 Aug 26, 2020
Fluoride 1025 Inorganic Chemical 13 of 23 results Sep 24, 2003 Apr 7, 2025
Trichloroacetic Acid 2452 Organic Chemical 13 of 14 results Jun 26, 2008 Apr 17, 2019
Chloroform 2941 Organic Chemical 13 of 14 results Oct 12, 2006 Apr 17, 2019
Chromium 1020 Inorganic Chemical 9 of 22 results Mar 21, 2005 Apr 7, 2025
Bromodichloromethane 2943 Organic Chemical 8 of 14 results Oct 12, 2006 Sep 24, 2014
Monochloroacetic Acid 2450 Organic Chemical 6 of 14 results Apr 13, 2009 Apr 17, 2019
Sodium 1052 Inorganic Chemical 4 of 4 results Jun 7, 2017 Feb 7, 2024
Nickel 1036 Inorganic Chemical 3 of 22 results Sep 24, 2003 Apr 7, 2025
Xylenes, Total 2955 Organic Chemical 3 of 20 results Aug 15, 2019 Jan 3, 2022
Sulfate 1055 Inorganic Chemical 3 of 3 results Sep 24, 2003 Jun 7, 2017
Nitrite 1041 Inorganic Chemical 2 of 32 results May 19, 2004 Aug 15, 2005
Arsenic 1005 Inorganic Chemical 1 of 22 results Feb 7, 2024 Feb 7, 2024
Ethylbenzene 2992 Organic Chemical 1 of 20 results Aug 15, 2019 Aug 15, 2019
Calcium 1016 Inorganic Chemical 1 of 1 result Jun 7, 2017 Jun 7, 2017
Iron 1028 Inorganic Chemical 1 of 1 result Jun 7, 2017 Jun 7, 2017
Magnesium 1031 Inorganic Chemical 1 of 1 result Jun 7, 2017 Jun 7, 2017
Manganese 1032 Inorganic Chemical 1 of 1 result Jun 7, 2017 Jun 7, 2017
Potassium 1042 Inorganic Chemical 1 of 1 result Jun 7, 2017 Jun 7, 2017
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
Carbon Dioxide 1901 Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
Color 1905 Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
Alkalinity, Total 1927 Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Jun 7, 2017 Jun 7, 2017
Calculated Sodium NACA Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
PH, Field Result PHFD Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
Monobromoacetic Acid 2453 Organic Chemical 1 of 14 results Aug 16, 2012 Aug 16, 2012
Dibromoacetic Acid 2454 Organic Chemical 1 of 14 results Aug 16, 2012 Aug 16, 2012

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

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The most recent samples, result by result

The 9 samples collected between September 25, 2024 and September 25, 2026 are listed below, newest first.

52 results from the 9 samples listed here: 7 detected, 45 not detected. 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 1 sampling point 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 Humphreys Co. W/A #1-Midnight, every result from the 9 samples on record, 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
Sep 10, 2025 13:20
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
IN-250911-012
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2025 13:20, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Collected
Aug 19, 2025 10:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
CN-250820-045
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 19, 2025 10:15, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Apr 7, 2025 11:00
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
IN-250408-041
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 11:00, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
0.0007 mg/l , sample collected Apr 7, 2025 11:00, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 11:00, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
0.0026 mg/l , sample collected Apr 7, 2025 11:00, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
0.141 mg/l , sample collected Apr 7, 2025 11:00, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2025 – Dec 31, 2025
0.0017 mg/l , sample collected Apr 7, 2025 11:00, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 11:00, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 11:00, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 11:00, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 11:00, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Collected
Apr 7, 2025 12:01
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
HA-250408-017
Laboratory
MSDH Lab
18.5 ug/l , sample collected Apr 7, 2025 12:01, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2025 – Dec 31, 2025
Collected
Apr 7, 2025 12:30
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
TH-250408-017
Laboratory
MSDH Lab
5.94 ug/l , sample collected Apr 7, 2025 12:30, sampling point SM1 TTHM 2950 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Collected
Mar 5, 2025 10:50
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
VO-250306-001
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 5, 2025 10:50, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Collected
Feb 13, 2025 08:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-250214-002
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 08:30, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0063 mg/l , sample collected Feb 13, 2025 08:30, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 08:30, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 08:30, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 08:30, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 08:30, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 08:30, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 08:30, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 08:30, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 08:30, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 08:30, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 13, 2025 10:50
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
NI-250214-004
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 10:50, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 10:50, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 10:50, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Feb 13, 2025 10:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-250214-003
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 10:30, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 10:30, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 10:30, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025

Routine (9).