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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

MS0270020 , Humphreys Co. W/A #2-Brooklyn

20 of the 57 analytes this system has been tested for have been detected at least once, across 189 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 189 samples on record, detections range from July 28, 1993 to September 30, 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 #2-Brooklyn, 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 100 of 111 results Jul 28, 1993 Sep 30, 2025
Lead 1030 Inorganic Chemical 55 of 111 results Jul 28, 1993 Sep 30, 2025
Barium 1010 Inorganic Chemical 10 of 10 results Sep 17, 2003 Feb 10, 2025
TTHM 2950 Organic Chemical 8 of 8 results Jun 9, 2004 Feb 10, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 7 results Sep 16, 2008 Feb 10, 2025
Chloroform 2941 Organic Chemical 5 of 5 results Aug 16, 2007 Aug 6, 2018
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Mar 8, 2012 Oct 4, 2012
Dichloroacetic Acid 2451 Organic Chemical 4 of 4 results Sep 16, 2008 Aug 6, 2018
Chromium 1020 Inorganic Chemical 4 of 10 results Sep 17, 2003 Mar 2, 2016
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 23, 2019 Feb 7, 2024
Trichloroacetic Acid 2452 Organic Chemical 3 of 4 results Sep 16, 2008 Sep 24, 2014
Bromodichloromethane 2943 Organic Chemical 3 of 5 results Aug 16, 2007 Sep 24, 2014
Monobromoacetic Acid 2453 Organic Chemical 2 of 4 results Sep 24, 2014 Aug 6, 2018
Fluoride 1025 Inorganic Chemical 2 of 10 results Sep 17, 2003 Mar 2, 2016
Selenium 1045 Inorganic Chemical 2 of 10 results Mar 14, 2005 Feb 6, 2006
Sulfate 1055 Inorganic Chemical 2 of 2 results Sep 17, 2003 Feb 9, 2004
Dibromoacetic Acid 2454 Organic Chemical 1 of 4 results Aug 6, 2018 Aug 6, 2018
Nickel 1036 Inorganic Chemical 1 of 10 results Apr 16, 2008 Apr 16, 2008
Dibromochloromethane 2944 Organic Chemical 1 of 5 results Aug 16, 2007 Aug 16, 2007
Cadmium 1015 Inorganic Chemical 1 of 10 results Mar 14, 2005 Mar 14, 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 91–100 of 189 samples, newest first — collected August 16, 2012 to July 17, 2014. The summary above covers all 189.

49 results from the 10 samples listed here: 13 detected, 36 not detected. Across the whole record it is 218 of 682. 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 #2-Brooklyn, every result from 91 to 100 of 189 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 17, 2014 12:25
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140718-052PB
Laboratory
MSDH Lab
0.0267 mg/l , sample collected Jul 17, 2014 12:25, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0006 mg/l , sample collected Jul 17, 2014 12:25, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jul 17, 2014 12:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140718-051PB
Laboratory
MSDH Lab
0.0659 mg/l , sample collected Jul 17, 2014 12:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0009 mg/l , sample collected Jul 17, 2014 12:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jul 16, 2014 20:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140718-053PB
Laboratory
MSDH Lab
0.135 mg/l , sample collected Jul 16, 2014 20:45, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0047 mg/l , sample collected Jul 16, 2014 20:45, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jul 15, 2014 19:25
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140718-050PB
Laboratory
MSDH Lab
0.0513 mg/l , sample collected Jul 15, 2014 19:25, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.001 mg/l , sample collected Jul 15, 2014 19:25, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Apr 2, 2014 12:50
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
140403-102NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 2, 2014 12:50, 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 12:50, 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 12:50, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Collected
Aug 27, 2013 02:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
130828-009VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, 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 27, 2013 02:45, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Collected
Feb 4, 2013 02:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
130205-045NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 02:15, 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 02:15, 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 02:15, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Collected
Oct 4, 2012 14:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
201301130169
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Oct 4, 2012 14:00, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.23 pci/l Minimum Reporting Level , sample collected Oct 4, 2012 14:00, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.206 pci/l Minimum Reporting Level , sample collected Oct 4, 2012 14:00, sampling point TF101 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.23 pci/l Minimum Reporting Level , sample collected Oct 4, 2012 14:00, sampling point TF101 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 3, 2012 15:12
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
121004-024
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Oct 3, 2012 15:12, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.23 pci/l Minimum Reporting Level , sample collected Oct 3, 2012 15:12, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.206 pci/l Minimum Reporting Level , sample collected Oct 3, 2012 15:12, sampling point TF101 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.23 pci/l Minimum Reporting Level , sample collected Oct 3, 2012 15:12, sampling point TF101 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Aug 16, 2012 02:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
120817-016HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 16, 2012 02:30, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Aug 16, 2012 02:30, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Aug 16, 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 16, 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 16, 2012 02:30, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.004 mg/l , sample collected Aug 16, 2012 02:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2011 – Dec 31, 2013

Routine (10).