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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

MS0270022 , Humphreys Co W/A #6-Gooden Lak

20 of the 57 analytes this system has been tested for have been detected at least once, across 261 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 261 samples on record, detections range from August 10, 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 #6-Gooden Lak, 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 142 of 175 results Aug 10, 1993 Aug 28, 2024
Lead 1030 Inorganic Chemical 32 of 175 results Aug 10, 1993 Aug 28, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 11 of 13 results Aug 16, 2007 Oct 28, 2025
Barium 1010 Inorganic Chemical 10 of 10 results Sep 24, 2003 Feb 13, 2025
Fluoride 1025 Inorganic Chemical 8 of 10 results Sep 24, 2003 Oct 24, 2018
Dichloroacetic Acid 2451 Organic Chemical 7 of 7 results Sep 25, 2008 Oct 28, 2025
Trichloroacetic Acid 2452 Organic Chemical 7 of 7 results Sep 25, 2008 Oct 28, 2025
Chloroform 2941 Organic Chemical 7 of 7 results Aug 16, 2007 Oct 28, 2025
TTHM 2950 Organic Chemical 7 of 12 results Aug 16, 2007 Oct 28, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 14, 2011 Aug 2, 2012
Bromodichloromethane 2943 Organic Chemical 4 of 7 results Sep 25, 2008 Oct 28, 2025
Chromium 1020 Inorganic Chemical 4 of 10 results Feb 11, 2004 Mar 2, 2016
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 23, 2019 Feb 7, 2024
Selenium 1045 Inorganic Chemical 3 of 10 results Mar 16, 2005 Apr 16, 2008
Sulfate 1055 Inorganic Chemical 2 of 2 results Sep 24, 2003 Feb 11, 2004
Monochloroacetic Acid 2450 Organic Chemical 1 of 7 results Jul 29, 2019 Jul 29, 2019
Monobromoacetic Acid 2453 Organic Chemical 1 of 7 results Aug 16, 2012 Aug 16, 2012
Dibromoacetic Acid 2454 Organic Chemical 1 of 7 results Aug 16, 2012 Aug 16, 2012
Nickel 1036 Inorganic Chemical 1 of 10 results Apr 16, 2008 Apr 16, 2008
Cadmium 1015 Inorganic Chemical 1 of 10 results Mar 16, 2005 Mar 16, 2005

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 121–130 of 261 samples, newest first — collected June 26, 2008 to June 26, 2008. The summary above covers all 261.

20 results from the 10 samples listed here: 10 detected, 10 not detected. Across the whole record it is 257 of 822. 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 #6-Gooden Lak, every result from 121 to 130 of 261 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
Jun 26, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080627-108PB
Laboratory
MSDH Lab
0.0058 mg/l , sample collected Jun 26, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 26, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080627-107PB
Laboratory
MSDH Lab
0.0043 mg/l , sample collected Jun 26, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 26, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080627-106PB
Laboratory
MSDH Lab
0.0072 mg/l , sample collected Jun 26, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 26, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080627-105PB
Laboratory
MSDH Lab
0.003 mg/l , sample collected Jun 26, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 26, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080627-104PB
Laboratory
MSDH Lab
0.0258 mg/l , sample collected Jun 26, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 26, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080627-103PB
Laboratory
MSDH Lab
0.0031 mg/l , sample collected Jun 26, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 26, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080627-102PB
Laboratory
MSDH Lab
0.0036 mg/l , sample collected Jun 26, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 26, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080627-101PB
Laboratory
MSDH Lab
0.0107 mg/l , sample collected Jun 26, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 26, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080627-100PB
Laboratory
MSDH Lab
0.0027 mg/l , sample collected Jun 26, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 26, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080627-099PB
Laboratory
MSDH Lab
0.02 mg/l , sample collected Jun 26, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010

Routine (10).