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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

MS0250015 , North Hinds W/A #1-Brownsville

34 of the 59 analytes this system has been tested for have been detected at least once, across 630 samples on record.

The other 25 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 630 samples on record, detections range from August 26, 1993 to April 23, 2026. 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 North Hinds W/A #1-Brownsville, 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 200 of 213 results Aug 26, 1993 Jul 25, 2024
Lead 1030 Inorganic Chemical 159 of 213 results Aug 26, 1993 Jul 25, 2024
TTHM 2950 Organic Chemical 77 of 77 results Jun 9, 2004 Jul 20, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 75 of 76 results Oct 26, 2005 Apr 23, 2026
Barium 1010 Inorganic Chemical 40 of 40 results Sep 17, 2003 Feb 13, 2025
Fluoride 1025 Inorganic Chemical 40 of 40 results Sep 17, 2003 Feb 13, 2025
Chloroform 2941 Organic Chemical 37 of 37 results Sep 20, 2006 Oct 21, 2020
Bromoform 2942 Organic Chemical 36 of 37 results Mar 9, 2009 Oct 21, 2020
Bromodichloromethane 2943 Organic Chemical 36 of 37 results Mar 9, 2009 Oct 21, 2020
Dibromochloromethane 2944 Organic Chemical 36 of 37 results Mar 9, 2009 Oct 21, 2020
Dichloroacetic Acid 2451 Organic Chemical 35 of 35 results Mar 9, 2009 Apr 23, 2026
Trichloroacetic Acid 2452 Organic Chemical 35 of 35 results Mar 9, 2009 Apr 23, 2026
Dibromoacetic Acid 2454 Organic Chemical 35 of 35 results Mar 9, 2009 Apr 23, 2026
Chromium 1020 Inorganic Chemical 23 of 40 results Sep 17, 2003 Jan 11, 2024
Arsenic 1005 Inorganic Chemical 16 of 40 results Feb 9, 2004 Mar 2, 2016
Selenium 1045 Inorganic Chemical 15 of 40 results Feb 9, 2004 Jan 11, 2024
Sodium 1052 Inorganic Chemical 12 of 12 results Sep 26, 2019 Feb 9, 2024
Nickel 1036 Inorganic Chemical 12 of 40 results Mar 14, 2005 Aug 30, 2018
Gross Alpha, Incl. Radon & U 4002 Radionuclide 12 of 12 results Mar 6, 2012 Nov 21, 2013
Nitrate-Nitrite 1038 Inorganic Chemical 10 of 89 results Aug 8, 2005 Feb 26, 2019
Nitrate 1040 Inorganic Chemical 10 of 89 results Aug 8, 2005 Feb 26, 2019
Sulfate 1055 Inorganic Chemical 8 of 8 results Sep 17, 2003 Feb 9, 2004
Monochloroacetic Acid 2450 Organic Chemical 5 of 35 results Dec 8, 2009 Apr 22, 2020
Gross Alpha Particle Activity 4109 Radionuclide 4 of 7 results Jun 29, 2012 Sep 12, 2013
Cadmium 1015 Inorganic Chemical 3 of 40 results Mar 15, 2005 Mar 15, 2005
Dichloromethane 2964 Organic Chemical 2 of 47 results Sep 22, 2014 Jun 6, 2019
Nitrite 1041 Inorganic Chemical 2 of 89 results Apr 23, 2007 May 28, 2008
Xylenes, Total 2955 Organic Chemical 1 of 47 results Nov 17, 2016 Nov 17, 2016
Gross Alpha, Excl. Radon & U 4000 Radionuclide 1 of 1 result Dec 12, 2011 Dec 12, 2011
Combined Uranium 4006 Radionuclide 1 of 16 results Dec 12, 2011 Dec 12, 2011
Combined Radium (-226 & -228) 4010 Radionuclide 1 of 15 results Dec 12, 2011 Dec 12, 2011
Radium-228 4030 Radionuclide 1 of 15 results Dec 12, 2011 Dec 12, 2011
Monobromoacetic Acid 2453 Organic Chemical 1 of 35 results Sep 9, 2009 Sep 9, 2009
Cyanide 1024 Inorganic Chemical 1 of 40 results Sep 17, 2003 Sep 17, 2003

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 381–390 of 630 samples, newest first — collected February 9, 2011 to March 6, 2012. The summary above covers all 630.

36 results from the 10 samples listed here: 15 detected, 21 not detected. Across the whole record it is 982 of 2,741. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Units in this table

Combined Uranium is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

Chemical and radiological sample results for North Hinds W/A #1-Brownsville, every result from 381 to 390 of 630 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
Mar 6, 2012 09:00
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120307-089RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 6, 2012 09:00, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Feb 8, 2012 09:20
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120209-031NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 8, 2012 09:20, 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 09:20, 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 09:20, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Collected
Feb 8, 2012 09:30
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120209-026NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 8, 2012 09:30, sampling point TF103 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 09:30, sampling point TF103 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 09:30, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Collected
Feb 8, 2012 09:25
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120209-025NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 8, 2012 09:25, sampling point TF102 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 09:25, sampling point TF102 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 09:25, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Collected
Feb 6, 2012 09:45
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
120207-005NI
Laboratory
MSDH Lab
0.1 mg/l , sample collected Feb 6, 2012 09:45, sampling point TF105 Nitrate-Nitrite 1038 EPA method 353.2 Not recorded
0.1 mg/l , sample collected Feb 6, 2012 09:45, sampling point TF105 Nitrate 1040 EPA method 353.2 Not recorded
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 6, 2012 09:45, sampling point TF105 Nitrite 1041 EPA method 353.2 Not recorded
Collected
Dec 12, 2011 10:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
292316001
Laboratory
Gel Laboratories
0.07 pci/l The agency recorded which kind of limit this result was below, but stored nothing as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Dec 12, 2011 10:00, sampling point TF102 Gross Alpha, Excl. Radon & U 4000 Not recorded
0.108 ug/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Dec 12, 2011 10:00, sampling point TF102 Combined Uranium 4006 EPA method 200.8 Not recorded
0.614 pci/l The agency recorded which kind of limit this result was below, but stored nothing as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Dec 12, 2011 10:00, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.661 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 10:00, sampling point TF102 Radium-226 4020 EPA method 903.1 Not recorded
0.614 pci/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Dec 12, 2011 10:00, sampling point TF102 Radium-228 4030 EPA method 904.0 Not recorded
Not detected below 3 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 10:00, sampling point TF102 Gross Alpha Particle Activity 4109 EPA method 900.0 Not recorded
Collected
Jun 16, 2011 10:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
110617-005TH
Laboratory
MSDH Lab
3.39 ug/l , sample collected Jun 16, 2011 10:05, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
2.34 ug/l , sample collected Jun 16, 2011 10:05, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
3.69 ug/l , sample collected Jun 16, 2011 10:05, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
4.95 ug/l , sample collected Jun 16, 2011 10:05, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
14.37 ug/l , sample collected Jun 16, 2011 10:05, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2009 – Dec 31, 2011
Collected
Jun 16, 2011
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
110617-005HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 16, 2011, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.003 mg/l , sample collected Jun 16, 2011, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Jun 16, 2011, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 16, 2011, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Jun 16, 2011, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.006 mg/l , sample collected Jun 16, 2011, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2009 – Dec 31, 2011
Collected
Feb 9, 2011
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
110210-049NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 9, 2011, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 9, 2011, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 9, 2011, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Collected
Feb 9, 2011
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
110210-046NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 9, 2011, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 9, 2011, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 9, 2011, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011

Routine (10).