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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.

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

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 287 samples, newest first — collected August 6, 2018 to March 18, 2019. The summary above covers all 287.

63 results from the 10 samples listed here: 8 detected, 55 not detected. Across the whole record it is 293 of 1,261. 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 Humphreys Co. W/A #1-Midnight, every result from 91 to 100 of 287 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 18, 2019 13:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
190319-061NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 18, 2019 13:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 18, 2019 13:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 18, 2019 13:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Collected
Feb 28, 2019 13:30
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
190301-001VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2019 13:30, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2019 – Mar 31, 2019
Collected
Jan 28, 2019 13:30
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
190129-001RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 28, 2019 13:30, sampling point TF102 Combined Uranium 4006 EPA method 200.8 Jan 1, 2019 – Mar 31, 2019
Collected
Jan 28, 2019 14:25
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
190129-017NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 28, 2019 14:25, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2019 – Mar 31, 2019
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 28, 2019 14:25, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2019 – Mar 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 28, 2019 14:25, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2019 – Mar 31, 2019
Collected
Jan 28, 2019 14:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
190129-016NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 28, 2019 14:15, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 28, 2019 14:15, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 28, 2019 14:15, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Collected
Nov 5, 2018 11:00
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
181106-012NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 5, 2018 11:00, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Oct 1, 2018 – Dec 31, 2018
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 5, 2018 11:00, sampling point TF102 Nitrate 1040 EPA method QC10107041C Oct 1, 2018 – Dec 31, 2018
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 5, 2018 11:00, sampling point TF102 Nitrite 1041 EPA method QC10107041C Oct 1, 2018 – Dec 31, 2018
Collected
Oct 24, 2018 02:35
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
181025-030IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF102 Arsenic 1005 EPA method 200.8 Oct 1, 2018 – Dec 31, 2018
0.0012 mg/l , sample collected Oct 24, 2018 02:35, sampling point TF102 Barium 1010 EPA method 200.8 Oct 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF102 Cadmium 1015 EPA method 200.8 Oct 1, 2018 – Dec 31, 2018
0.0012 mg/l , sample collected Oct 24, 2018 02:35, sampling point TF102 Chromium 1020 EPA method 200.8 Oct 1, 2018 – Dec 31, 2018
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF102 Fluoride 1025 EPA method 300.0 Oct 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF102 Mercury 1035 EPA method 200.8 Oct 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF102 Selenium 1045 EPA method 200.8 Oct 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Oct 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Oct 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Oct 1, 2018 – Dec 31, 2018
Collected
Oct 24, 2018 02:35
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
181025-028IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.0012 mg/l , sample collected Oct 24, 2018 02:35, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.0006 mg/l , sample collected Oct 24, 2018 02:35, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.109 mg/l , sample collected Oct 24, 2018 02:35, sampling point TF101 Fluoride 1025 EPA method 300.0 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 02:35, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Collected
Aug 21, 2018 13:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
180823-027RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 21, 2018 13:30, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
Aug 6, 2018 11:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
180807-022HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 6, 2018 11:05, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.003 mg/l , sample collected Aug 6, 2018 11:05, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Aug 6, 2018 11:05, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 6, 2018 11:05, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 6, 2018 11:05, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.005 mg/l , sample collected Aug 6, 2018 11:05, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2017 – Dec 31, 2019

Routine (10).