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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

MS0270019 , Humphreys Co. W/A #3-Jaketown

19 of the 57 analytes this system has been tested for have been detected at least once, across 217 samples on record.

The other 38 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 217 samples on record, detections range from August 2, 1993 to October 28, 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 #3-Jaketown, 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 95 of 130 results Aug 2, 1993 Jul 13, 2023
Lead 1030 Inorganic Chemical 82 of 130 results Aug 2, 1993 Jul 13, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 11 of 13 results Aug 14, 2007 Oct 28, 2025
Barium 1010 Inorganic Chemical 10 of 10 results Sep 24, 2003 Feb 13, 2025
TTHM 2950 Organic Chemical 8 of 12 results Jun 9, 2004 Oct 28, 2025
Dichloroacetic Acid 2451 Organic Chemical 6 of 7 results Sep 25, 2008 Oct 28, 2025
Trichloroacetic Acid 2452 Organic Chemical 6 of 7 results Sep 25, 2008 Oct 28, 2025
Chloroform 2941 Organic Chemical 5 of 7 results Sep 25, 2008 Oct 28, 2025
Bromodichloromethane 2943 Organic Chemical 5 of 7 results Sep 25, 2008 Oct 28, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 14, 2011 Jul 11, 2012
Chromium 1020 Inorganic Chemical 4 of 10 results Feb 9, 2004 Mar 2, 2016
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 23, 2019 Feb 7, 2024
Sulfate 1055 Inorganic Chemical 2 of 2 results Sep 24, 2003 Feb 9, 2004
Nitrite 1041 Inorganic Chemical 1 of 22 results Mar 9, 2020 Mar 9, 2020
Monochloroacetic Acid 2450 Organic Chemical 1 of 7 results Jul 29, 2019 Jul 29, 2019
Fluoride 1025 Inorganic Chemical 1 of 10 results Mar 2, 2016 Mar 2, 2016
Nickel 1036 Inorganic Chemical 1 of 10 results Apr 14, 2008 Apr 14, 2008
Selenium 1045 Inorganic Chemical 1 of 10 results Feb 6, 2006 Feb 6, 2006
Mercury 1035 Inorganic Chemical 1 of 10 results Feb 9, 2004 Feb 9, 2004

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 217 samples, newest first — collected July 18, 2011 to April 18, 2012. The summary above covers all 217.

34 results from the 10 samples listed here: 8 detected, 26 not detected. Across the whole record it is 248 of 753. 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 #3-Jaketown, every result from 91 to 100 of 217 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 13:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120419-074
Laboratory
Radiation Safety Engineering
0.6 pci/l , sample collected Apr 18, 2012 13:30, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Apr 18, 2012 13:30, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.485 pci/l Minimum Reporting Level , sample collected Apr 18, 2012 13:30, sampling point TF101 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Apr 18, 2012 13:30, sampling point TF101 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
Apr 18, 2012 13:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120419-074RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2012 13:30, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
Apr 2, 2012 03:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120403-040IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 2, 2012 03:45, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.00703 mg/l , sample collected Apr 2, 2012 03:45, 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 03:45, 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 03:45, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 2, 2012 03:45, 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 03:45, 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 03:45, 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 03:45, 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 03:45, 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 03:45, 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 03:45, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Feb 15, 2012 12:05
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120216-005
Laboratory
Radiation Safety Engineering
0.6 pci/l , sample collected Feb 15, 2012 12:05, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Feb 15, 2012 12:05, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.485 pci/l Minimum Reporting Level , sample collected Feb 15, 2012 12:05, sampling point TF101 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Feb 15, 2012 12:05, sampling point TF101 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Feb 15, 2012 12:12
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120216-005RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 15, 2012 12:12, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Feb 8, 2012 01:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120209-016NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 8, 2012 01:15, 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 01:15, 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 01:15, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Collected
Dec 14, 2011 13:35
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
111215-046
Laboratory
Radiation Safety Engineering
0.6 pci/l , sample collected Dec 14, 2011 13:35, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Dec 14, 2011 13:35, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.485 pci/l Minimum Reporting Level , sample collected Dec 14, 2011 13:35, sampling point TF101 Radium-226 4020 EPA method 903.1 Oct 1, 2011 – Dec 31, 2011
Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Dec 14, 2011 13:35, 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
110721-025PB
Laboratory
MSDH Lab
0.2608 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
110721-024PB
Laboratory
MSDH Lab
0.0024 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
110721-023PB
Laboratory
MSDH Lab
0.1993 mg/l , sample collected Jul 18, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.0016 mg/l , sample collected Jul 18, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011

Routine (10).