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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; the list of samples further down is narrowed.

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

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

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The most recent samples, result by result

The 4 samples collected between September 25, 2024 and September 25, 2026 are listed below, newest first.

26 results from the 4 samples listed here: 7 detected, 19 not detected. 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 the 4 samples on record, 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
Oct 28, 2025 08:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
810-169704-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 28, 2025 08:30, sampling point DS000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
3 ug/l , sample collected Oct 28, 2025 08:30, sampling point DS000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
3.4 ug/l , sample collected Oct 28, 2025 08:30, sampling point DS000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 28, 2025 08:30, sampling point DS000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 28, 2025 08:30, sampling point DS000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
6.4 ug/l , sample collected Oct 28, 2025 08:30, sampling point DS000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
4 ug/l , sample collected Oct 28, 2025 08:30, sampling point DS000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 28, 2025 08:30, sampling point DS000 Bromoform 2942 EPA method 524.2 Not recorded
1.6 ug/l , sample collected Oct 28, 2025 08:30, sampling point DS000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 28, 2025 08:30, sampling point DS000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
5.6 ug/l , sample collected Oct 28, 2025 08:30, sampling point DS000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Aug 19, 2025 09:40
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
CN-250820-007
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 19, 2025 09:40, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Feb 13, 2025 09:20
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-250214-007
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 09:20, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0061 mg/l , sample collected Feb 13, 2025 09:20, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 09:20, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 09:20, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 09:20, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 09:20, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 09:20, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 09:20, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 09:20, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 09:20, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 09:20, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 13, 2025 11:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-250214-002
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 11:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 11:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 13, 2025 11:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025

Routine (4).