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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; 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 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

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.

Show every sample on record

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The most recent samples, result by result

The table below lists 11–16 of 16 samples, newest first — collected October 28, 2024 to February 25, 2025. The summary above covers all 16.

8 results from the 6 samples listed here: 4 detected, 4 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 Southwest Jones W/A-North, every result from 11 to 16 of 16 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
Feb 25, 2025 11:25
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NI-250226-033
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 11:25, sampling point TF104 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 25, 2025 11:25, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 25, 2025 11:25, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Feb 4, 2025 13:41
Sampling point
TF107 Treatment Facility TF107
Sample type
Routine
Lab sample
NA-250205-012
Laboratory
MSDH Lab
37.3 mg/l , sample collected Feb 4, 2025 13:41, sampling point TF107 Sodium 1052 EPA method 200.7 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 4, 2025 13:24
Sampling point
TF106 Treatment Plant 106
Sample type
Routine
Lab sample
NA-250205-010
Laboratory
MSDH Lab
48 mg/l , sample collected Feb 4, 2025 13:24, sampling point TF106 Sodium 1052 EPA method 200.7 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 4, 2025 13:00
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
NA-250205-009
Laboratory
MSDH Lab
47.1 mg/l , sample collected Feb 4, 2025 13:00, sampling point TF105 Sodium 1052 EPA method 200.7 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 4, 2025 14:01
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NA-250205-011
Laboratory
MSDH Lab
31.4 mg/l , sample collected Feb 4, 2025 14:01, sampling point TF104 Sodium 1052 EPA method 200.7 Jan 1, 2023 – Dec 31, 2025
Collected
Oct 28, 2024 13:35
Sampling point
TF106 Treatment Plant 106
Sample type
Routine
Lab sample
CN-241029-007
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 28, 2024 13:35, sampling point TF106 Cyanide 1024 EPA method QC10204001X Jan 1, 2022 – Dec 31, 2024

Routine (6).