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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 21–30 of 207 samples, newest first — collected September 21, 2023 to February 28, 2024. The summary above covers all 207.

56 results from the 10 samples listed here: 13 detected, 43 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.

We withheld the location of 8 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for West Madison Utl Dist, every result from 21 to 30 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
Feb 28, 2024 08:50
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-95676-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:50, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:50, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:50, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:50, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:50, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:50, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:50, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:50, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:50, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:50, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:50, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Collected
Feb 28, 2024 08:30
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-95676-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:30, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:30, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:30, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:30, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:30, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:30, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:30, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:30, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:30, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:30, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 28, 2024 08:30, sampling point SM1 TTHM 2950 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Collected
Feb 12, 2024 15:10
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
IN-240214-012
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 15:10, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
0.0239 mg/l , sample collected Feb 12, 2024 15:10, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 15:10, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 15:10, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
0.154 mg/l , sample collected Feb 12, 2024 15:10, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 15:10, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 15:10, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 15:10, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 15:10, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 15:10, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 15:10, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Collected
Oct 25, 2023 12:42
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
IN-231027-002
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 25, 2023 12:42, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.0258 mg/l , sample collected Oct 25, 2023 12:42, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 25, 2023 12:42, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 25, 2023 12:42, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.147 mg/l , sample collected Oct 25, 2023 12:42, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 25, 2023 12:42, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 25, 2023 12:42, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Oct 25, 2023 12:42, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 25, 2023 12:42, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 25, 2023 12:42, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 25, 2023 12:42, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 21, 2023 06:00
Sampling point
LC0011 Location withheld
Sample type
Routine
Lab sample
PB-230922-015
Laboratory
MSDH Lab
0.0171 mg/l , sample collected Sep 21, 2023 06:00, sampling point LC0011 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 21, 2023 06:00, sampling point LC0011 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 21, 2023 08:00
Sampling point
LC0004 Location withheld
Sample type
Routine
Lab sample
PB-230922-014
Laboratory
MSDH Lab
0.0927 mg/l , sample collected Sep 21, 2023 08:00, sampling point LC0004 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.743 ug/l , sample collected Sep 21, 2023 08:00, sampling point LC0004 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 21, 2023 06:00
Sampling point
LC0008 Location withheld
Sample type
Routine
Lab sample
PB-230922-013
Laboratory
MSDH Lab
0.0341 mg/l , sample collected Sep 21, 2023 06:00, sampling point LC0008 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 21, 2023 06:00, sampling point LC0008 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 21, 2023 05:30
Sampling point
LC0006 Location withheld
Sample type
Routine
Lab sample
PB-230922-012
Laboratory
MSDH Lab
0.026 mg/l , sample collected Sep 21, 2023 05:30, sampling point LC0006 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.695 ug/l , sample collected Sep 21, 2023 05:30, sampling point LC0006 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 21, 2023 07:38
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-230922-011
Laboratory
MSDH Lab
0.0173 mg/l , sample collected Sep 21, 2023 07:38, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
1.04 ug/l , sample collected Sep 21, 2023 07:38, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 21, 2023 06:45
Sampling point
LC0016 Location withheld
Sample type
Routine
Lab sample
PB-230922-010
Laboratory
MSDH Lab
0.0599 mg/l , sample collected Sep 21, 2023 06:45, sampling point LC0016 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 21, 2023 06:45, sampling point LC0016 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023

Routine (10).