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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

MS0450016 , West Madison Utl Dist

40 of the 72 analytes this system has been tested for have been detected at least once, across 207 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 207 samples on record, detections range from October 6, 2003 to June 25, 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 West Madison Utl Dist, 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 55 of 55 results Jul 12, 2007 Sep 21, 2023
Lead 1030 Inorganic Chemical 40 of 55 results Jul 12, 2007 Sep 21, 2023
Barium 1010 Inorganic Chemical 22 of 22 results Oct 6, 2003 Jun 23, 2026
TTHM 2950 Organic Chemical 20 of 25 results Jul 12, 2004 Jun 25, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 17 of 25 results Sep 29, 2010 Jun 25, 2026
Fluoride 1025 Inorganic Chemical 17 of 23 results Oct 6, 2003 Jun 23, 2026
Chloroform 2941 Organic Chemical 15 of 19 results Aug 30, 2007 Jun 25, 2026
Bromodichloromethane 2943 Organic Chemical 14 of 20 results Sep 29, 2010 Jun 25, 2026
Chromium 1020 Inorganic Chemical 14 of 22 results Oct 6, 2003 Apr 29, 2020
Trichloroacetic Acid 2452 Organic Chemical 13 of 20 results Sep 29, 2010 Jun 25, 2026
Dichloroacetic Acid 2451 Organic Chemical 12 of 20 results Sep 29, 2010 Jun 25, 2026
Sulfate 1055 Inorganic Chemical 7 of 7 results Oct 6, 2003 Feb 13, 2018
Sodium 1052 Inorganic Chemical 6 of 6 results Feb 13, 2018 Jun 23, 2026
Dibromochloromethane 2944 Organic Chemical 6 of 20 results Sep 6, 2013 May 5, 2025
Nickel 1036 Inorganic Chemical 6 of 21 results Mar 10, 2004 Mar 25, 2020
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 15, 2011 Jul 17, 2012
Nitrate-Nitrite 1038 Inorganic Chemical 2 of 31 results Dec 9, 2009 Apr 8, 2015
Nitrate 1040 Inorganic Chemical 2 of 31 results Dec 9, 2009 Apr 8, 2015
Selenium 1045 Inorganic Chemical 2 of 22 results Mar 10, 2004 Mar 10, 2010
Monobromoacetic Acid 2453 Organic Chemical 1 of 20 results Sep 15, 2020 Sep 15, 2020
Xylenes, Total 2955 Organic Chemical 1 of 30 results May 20, 2020 May 20, 2020
Calcium 1016 Inorganic Chemical 1 of 1 result Feb 13, 2018 Feb 13, 2018
Chloride 1017 Inorganic Chemical 1 of 1 result Feb 13, 2018 Feb 13, 2018
Iron 1028 Inorganic Chemical 1 of 1 result Feb 13, 2018 Feb 13, 2018
Magnesium 1031 Inorganic Chemical 1 of 1 result Feb 13, 2018 Feb 13, 2018
Manganese 1032 Inorganic Chemical 1 of 1 result Feb 13, 2018 Feb 13, 2018
Potassium 1042 Inorganic Chemical 1 of 1 result Feb 13, 2018 Feb 13, 2018
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Feb 13, 2018 Feb 13, 2018
Carbon Dioxide 1901 Water Quality 1 of 1 result Feb 13, 2018 Feb 13, 2018
Color 1905 Water Quality 1 of 1 result Feb 13, 2018 Feb 13, 2018
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Feb 13, 2018 Feb 13, 2018
Alkalinity, Total 1927 Water Quality 1 of 1 result Feb 13, 2018 Feb 13, 2018
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Feb 13, 2018 Feb 13, 2018
Calculated Sodium NACA Water Quality 1 of 1 result Feb 13, 2018 Feb 13, 2018
PH, Field Result PHFD Water Quality 1 of 1 result Feb 13, 2018 Feb 13, 2018
Combined Radium (-226 & -228) 4010 Radionuclide 1 of 7 results Dec 12, 2012 Dec 12, 2012
Radium-226 4020 Radionuclide 1 of 7 results Dec 12, 2012 Dec 12, 2012
Gross Alpha Particle Activity 4109 Radionuclide 1 of 2 results Dec 12, 2012 Dec 12, 2012
Cyanide 1024 Inorganic Chemical 1 of 15 results Dec 5, 2007 Dec 5, 2007
Dichloromethane 2964 Organic Chemical 1 of 30 results Aug 17, 2004 Aug 17, 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 131–140 of 207 samples, newest first — collected December 9, 2010 to July 16, 2012. The summary above covers all 207.

37 results from the 10 samples listed here: 6 detected, 31 not detected. Across the whole record it is 296 of 1,382. 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 West Madison Utl Dist, every result from 131 to 140 of 207 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 16, 2012 09:30
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120717-001IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 16, 2012 09:30, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.02647 mg/l , sample collected Jul 16, 2012 09:30, 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 Jul 16, 2012 09:30, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.00466 mg/l , sample collected Jul 16, 2012 09:30, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.488 mg/l , sample collected Jul 16, 2012 09:30, 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 Jul 16, 2012 09:30, 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 Jul 16, 2012 09:30, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jul 16, 2012 09:30, 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 Jul 16, 2012 09:30, 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 Jul 16, 2012 09:30, 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 Jul 16, 2012 09:30, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Apr 24, 2012 08:30
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120425-009
Laboratory
Radiation Safety Engineering
0.7 pci/l , sample collected Apr 24, 2012 08:30, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.43 pci/l Minimum Reporting Level , sample collected Apr 24, 2012 08:30, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.43 pci/l Minimum Reporting Level , sample collected Apr 24, 2012 08:30, sampling point TF103 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Apr 24, 2012 08:30, sampling point TF103 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
Apr 24, 2012 09:00
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120425-009RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 24, 2012 09:00, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
Feb 27, 2012 09:00
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120228-116NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 27, 2012 09:00, 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 27, 2012 09:00, 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 27, 2012 09:00, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Collected
Feb 16, 2012 11:00
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120217-037
Laboratory
Radiation Safety Engineering
0.7 pci/l , sample collected Feb 16, 2012 11:00, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.43 pci/l Minimum Reporting Level , sample collected Feb 16, 2012 11:00, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.43 pci/l Minimum Reporting Level , sample collected Feb 16, 2012 11:00, sampling point TF103 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Feb 16, 2012 11:00, sampling point TF103 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Feb 16, 2012 10:50
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120217-037RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 16, 2012 10:50, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Dec 15, 2011 09:15
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
111216-039
Laboratory
Radiation Safety Engineering
0.7 pci/l , sample collected Dec 15, 2011 09:15, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.43 pci/l Minimum Reporting Level , sample collected Dec 15, 2011 09:15, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.43 pci/l Minimum Reporting Level , sample collected Dec 15, 2011 09:15, sampling point TF103 Radium-226 4020 EPA method 903.1 Oct 1, 2011 – Dec 31, 2011
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Dec 15, 2011 09:15, sampling point TF103 Radium-228 4030 EPA method 904.0 Oct 1, 2011 – Dec 31, 2011
Collected
Mar 2, 2011
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
110303-020NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 2, 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 Mar 2, 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 Mar 2, 2011, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Collected
Mar 2, 2011
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
110303-009NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 2, 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 Mar 2, 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 Mar 2, 2011, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Collected
Dec 9, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
101210-007NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Dec 9, 2010, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Dec 9, 2010, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Dec 9, 2010, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010

Routine (10).