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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 141–150 of 287 samples, newest first — collected July 18, 2011 to April 18, 2012. The summary above covers all 287.

34 results from the 10 samples listed here: 5 detected, 29 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 141 to 150 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
Apr 18, 2012 12:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120419-049
Laboratory
Radiation Safety Engineering
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Apr 18, 2012 12:30, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.49 pci/l Minimum Reporting Level , sample collected Apr 18, 2012 12:30, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.286 pci/l Minimum Reporting Level , sample collected Apr 18, 2012 12:30, sampling point TF101 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.49 pci/l Minimum Reporting Level , sample collected Apr 18, 2012 12:30, sampling point TF101 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
Apr 18, 2012 12:39
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120419-049RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2012 12:39, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
Apr 2, 2012 03:10
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120403-042IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 2, 2012 03:10, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.00149 mg/l , sample collected Apr 2, 2012 03:10, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 2, 2012 03:10, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 2, 2012 03:10, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.117 mg/l , sample collected Apr 2, 2012 03:10, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 2, 2012 03:10, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 2, 2012 03:10, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 2, 2012 03:10, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 2, 2012 03:10, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 2, 2012 03:10, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 2, 2012 03:10, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Feb 13, 2012 12:35
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120214-038
Laboratory
Radiation Safety Engineering
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Feb 13, 2012 12:35, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.49 pci/l Minimum Reporting Level , sample collected Feb 13, 2012 12:35, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.286 pci/l Minimum Reporting Level , sample collected Feb 13, 2012 12:35, sampling point TF101 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.49 pci/l Minimum Reporting Level , sample collected Feb 13, 2012 12:35, sampling point TF101 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Feb 13, 2012 12:42
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120214-038RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2012 12:42, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Feb 8, 2012 12:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120209-018NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 8, 2012 12:30, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 8, 2012 12:30, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 8, 2012 12:30, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Collected
Dec 13, 2011 14:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
111214-057
Laboratory
Radiation Safety Engineering
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Dec 13, 2011 14:45, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.49 pci/l Minimum Reporting Level , sample collected Dec 13, 2011 14:45, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.286 pci/l Minimum Reporting Level , sample collected Dec 13, 2011 14:45, sampling point TF101 Radium-226 4020 EPA method 903.1 Oct 1, 2011 – Dec 31, 2011
Not detected below 0.49 pci/l Minimum Reporting Level , sample collected Dec 13, 2011 14:45, sampling point TF101 Radium-228 4030 EPA method 904.0 Oct 1, 2011 – Dec 31, 2011
Collected
Jul 18, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110721-035PB
Laboratory
MSDH Lab
0.0097 mg/l , sample collected Jul 18, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 18, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Jul 18, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110721-034PB
Laboratory
MSDH Lab
0.0052 mg/l , sample collected Jul 18, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 18, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Jul 18, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110721-033PB
Laboratory
MSDH Lab
0.023 mg/l , sample collected Jul 18, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 18, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011

Routine (10).