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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 81–90 of 217 samples, newest first — collected July 10, 2012 to July 14, 2014. The summary above covers all 217.

50 results from the 10 samples listed here: 10 detected, 40 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 81 to 90 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
Jul 14, 2014 03:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140717-108PB
Laboratory
MSDH Lab
0.0324 mg/l , sample collected Jul 14, 2014 03:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0012 mg/l , sample collected Jul 14, 2014 03:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Apr 2, 2014 14:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
140403-012NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 2, 2014 14:30, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 2, 2014 14:30, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 2, 2014 14:30, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Collected
Aug 28, 2013 10:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
130829-016VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 28, 2013 10:00, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Collected
Feb 4, 2013 02:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
130205-044NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 02:45, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 02:45, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 02:45, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Collected
Nov 29, 2012 03:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
121130-003CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Nov 29, 2012 03:00, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Aug 15, 2012 02:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
120816-009TH
Laboratory
MSDH Lab
10.4 ug/l , sample collected Aug 15, 2012 02:30, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 15, 2012 02:30, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
2.94 ug/l , sample collected Aug 15, 2012 02:30, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 15, 2012 02:30, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
13.3 ug/l , sample collected Aug 15, 2012 02:30, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 15, 2012 02:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
120816-008HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 15, 2012 02:30, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.008 mg/l , sample collected Aug 15, 2012 02:30, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.008 mg/l , sample collected Aug 15, 2012 02:30, 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 15, 2012 02:30, 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 15, 2012 02:30, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.016 mg/l , sample collected Aug 15, 2012 02:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2011 – Dec 31, 2013
Collected
Jul 11, 2012 13:35
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
201210090101
Laboratory
Radiation Safety Engineering
0.6 pci/l , sample collected Jul 11, 2012 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 Jul 11, 2012 13:35, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.485 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 13:35, sampling point TF101 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 13:35, sampling point TF101 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 10, 2012 15:20
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120711-053
Laboratory
Radiation Safety Engineering
0.6 pci/l , sample collected Jul 10, 2012 15:20, 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 Jul 10, 2012 15:20, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.485 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 15:20, sampling point TF101 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 15:20, sampling point TF101 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 10, 2012 15:20
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120711-053RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2012 15:20, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012

Routine (10).