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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

MS0340019 , Southwest Jones W/A-North

43 of the 75 analytes this system has been tested for have been detected at least once, across 508 samples on record.

The other 32 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 508 samples on record, detections range from September 24, 2003 to November 3, 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 Southwest Jones W/A-North, 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 144 of 144 results Aug 28, 2007 Jul 30, 2024
Lead 1030 Inorganic Chemical 122 of 144 results Aug 28, 2007 Jul 30, 2024
Barium 1010 Inorganic Chemical 43 of 43 results Sep 24, 2003 Feb 25, 2025
Fluoride 1025 Inorganic Chemical 27 of 44 results Sep 24, 2003 Feb 25, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 17 of 22 results Mar 7, 2012 Dec 15, 2015
Chromium 1020 Inorganic Chemical 15 of 43 results Sep 24, 2003 Jan 13, 2021
Sodium 1052 Inorganic Chemical 13 of 13 results Feb 22, 2010 Feb 4, 2025
Xylenes, Total 2955 Organic Chemical 13 of 92 results May 4, 2004 Jun 15, 2016
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 10 of 12 results Aug 16, 2007 Aug 14, 2024
Sulfate 1055 Inorganic Chemical 9 of 9 results Sep 24, 2003 Feb 22, 2010
TTHM 2950 Organic Chemical 8 of 11 results Aug 16, 2007 Nov 3, 2025
Gross Alpha Particle Activity 4109 Radionuclide 8 of 12 results Sep 28, 2009 Sep 26, 2012
Combined Radium (-226 & -228) 4010 Radionuclide 8 of 32 results Sep 28, 2009 Nov 29, 2011
Gross Beta Particle Activity 4100 Radionuclide 8 of 8 results Sep 28, 2009 Mar 11, 2010
Chloroform 2941 Organic Chemical 7 of 7 results Aug 16, 2007 Nov 3, 2025
Bromodichloromethane 2943 Organic Chemical 7 of 7 results Aug 16, 2007 Nov 3, 2025
Gross Alpha, Excl. Radon & U 4000 Radionuclide 7 of 10 results Sep 28, 2009 Mar 11, 2010
Dichloroacetic Acid 2451 Organic Chemical 6 of 7 results Sep 22, 2009 Oct 22, 2020
Trichloroacetic Acid 2452 Organic Chemical 5 of 7 results Sep 22, 2009 Oct 22, 2020
Ethylbenzene 2992 Organic Chemical 5 of 92 results May 4, 2004 Oct 15, 2014
Radium-228 4030 Radionuclide 5 of 32 results Sep 28, 2009 Nov 29, 2011
Radium-226 4020 Radionuclide 5 of 32 results Sep 28, 2009 Mar 11, 2010
Nickel 1036 Inorganic Chemical 4 of 43 results Mar 23, 2005 Apr 2, 2014
Dibromochloromethane 2944 Organic Chemical 2 of 7 results Oct 22, 2020 Nov 3, 2025
Monobromoacetic Acid 2453 Organic Chemical 2 of 7 results Aug 12, 2019 Oct 22, 2020
Cyanide 1024 Inorganic Chemical 2 of 38 results Sep 23, 2009 Apr 27, 2011
Thallium, Total 1085 Inorganic Chemical 2 of 43 results Mar 23, 2005 Mar 23, 2005
Calcium 1016 Inorganic Chemical 1 of 1 result Feb 22, 2010 Feb 22, 2010
Iron 1028 Inorganic Chemical 1 of 1 result Feb 22, 2010 Feb 22, 2010
Magnesium 1031 Inorganic Chemical 1 of 1 result Feb 22, 2010 Feb 22, 2010
Manganese 1032 Inorganic Chemical 1 of 1 result Feb 22, 2010 Feb 22, 2010
Potassium 1042 Inorganic Chemical 1 of 1 result Feb 22, 2010 Feb 22, 2010
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Feb 22, 2010 Feb 22, 2010
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Feb 22, 2010 Feb 22, 2010
Carbon Dioxide 1901 Water Quality 1 of 1 result Feb 22, 2010 Feb 22, 2010
Color 1905 Water Quality 1 of 1 result Feb 22, 2010 Feb 22, 2010
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Feb 22, 2010 Feb 22, 2010
Alkalinity, Total 1927 Water Quality 1 of 1 result Feb 22, 2010 Feb 22, 2010
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Feb 22, 2010 Feb 22, 2010
Calculated Sodium NACA Water Quality 1 of 1 result Feb 22, 2010 Feb 22, 2010
PH, Field Result PHFD Water Quality 1 of 1 result Feb 22, 2010 Feb 22, 2010
Monochloroacetic Acid 2450 Organic Chemical 1 of 7 results Sep 22, 2009 Sep 22, 2009
Dichloromethane 2964 Organic Chemical 1 of 92 results Aug 3, 2004 Aug 3, 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 301–310 of 508 samples, newest first — collected March 7, 2012 to April 9, 2012. The summary above covers all 508.

62 results from the 10 samples listed here: 11 detected, 51 not detected. Across the whole record it is 520 of 3,314. 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 Southwest Jones W/A-North, every result from 301 to 310 of 508 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
Apr 9, 2012 12:44
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
120412-090IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 12:44, sampling point TF105 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.00558 mg/l , sample collected Apr 9, 2012 12:44, sampling point TF105 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 12:44, sampling point TF105 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 12:44, sampling point TF105 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.123 mg/l , sample collected Apr 9, 2012 12:44, sampling point TF105 Fluoride 1025 EPA method 380-75WE Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 12:44, sampling point TF105 Mercury 1035 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 12:44, sampling point TF105 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 12:44, sampling point TF105 Selenium 1045 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 12:44, sampling point TF105 Antimony, Total 1074 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 12:44, sampling point TF105 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 12:44, sampling point TF105 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Apr 9, 2012 01:25
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120412-089IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:25, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.00746 mg/l , sample collected Apr 9, 2012 01:25, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:25, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:25, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.237 mg/l , sample collected Apr 9, 2012 01:25, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:25, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:25, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:25, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:25, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:25, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:25, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Apr 9, 2012 01:05
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
120412-088IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:05, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.00872 mg/l , sample collected Apr 9, 2012 01:05, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:05, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:05, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.191 mg/l , sample collected Apr 9, 2012 01:05, sampling point TF104 Fluoride 1025 EPA method 380-75WE Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:05, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:05, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:05, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:05, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:05, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:05, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Apr 9, 2012 01:15
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120412-087IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:15, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.00185 mg/l , sample collected Apr 9, 2012 01:15, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:15, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:15, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.351 mg/l , sample collected Apr 9, 2012 01:15, sampling point TF103 Fluoride 1025 EPA method 380-75WE Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:15, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:15, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:15, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:15, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:15, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 01:15, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Mar 7, 2012 12:00
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120308-058
Laboratory
Radiation Safety Engineering
2.1 pci/l , sample collected Mar 7, 2012 12:00, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.515 pci/l Minimum Reporting Level , sample collected Mar 7, 2012 12:00, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.515 pci/l Minimum Reporting Level , sample collected Mar 7, 2012 12:00, sampling point TF103 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Mar 7, 2012 12:00, sampling point TF103 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 7, 2012 13:35
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
120308-060
Laboratory
Radiation Safety Engineering
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Mar 7, 2012 13:35, sampling point TF105 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.539 pci/l Minimum Reporting Level , sample collected Mar 7, 2012 13:35, sampling point TF105 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.539 pci/l Minimum Reporting Level , sample collected Mar 7, 2012 13:35, sampling point TF105 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Mar 7, 2012 13:35, sampling point TF105 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 7, 2012 12:40
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
120308-059
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected Mar 7, 2012 12:40, sampling point TF104 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.428 pci/l Minimum Reporting Level , sample collected Mar 7, 2012 12:40, sampling point TF104 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.428 pci/l Minimum Reporting Level , sample collected Mar 7, 2012 12:40, sampling point TF104 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Mar 7, 2012 12:40, sampling point TF104 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 7, 2012 12:20
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120308-057
Laboratory
Radiation Safety Engineering
4.1 pci/l , sample collected Mar 7, 2012 12:20, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.46 pci/l Minimum Reporting Level , sample collected Mar 7, 2012 12:20, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.361 pci/l Minimum Reporting Level , sample collected Mar 7, 2012 12:20, sampling point TF101 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.46 pci/l Minimum Reporting Level , sample collected Mar 7, 2012 12:20, sampling point TF101 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 7, 2012 13:40
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
120308-060RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 7, 2012 13:40, sampling point TF105 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 7, 2012 12:44
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
120308-059RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 7, 2012 12:44, sampling point TF104 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012

Routine (10).