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 51–60 of 207 samples, newest first — collected July 23, 2020 to March 31, 2021. The summary above covers all 207.

29 results from the 10 samples listed here: 16 detected, 13 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 51 to 60 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 Mar 31, 2021 09:45 Sampling point TF104 Treatment Facility TF104 Sample type Routine Lab sample NI-210401-056 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 31, 2021 09:45, sampling point TF104	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 31, 2021 09:45, sampling point TF104	Nitrate 1040 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 31, 2021 09:45, sampling point TF104	Nitrite 1041 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Collected Dec 3, 2020 14:10 Sampling point TF104 Treatment Facility TF104 Sample type Routine Lab sample NI-201204-020 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Dec 3, 2020 14:10, sampling point TF104	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Dec 3, 2020 14:10, sampling point TF104	Nitrate 1040 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Dec 3, 2020 14:10, sampling point TF104	Nitrite 1041 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Collected Sep 15, 2020 12:20 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample 200916-008TH Laboratory MSDH Lab
1.54 ug/l , sample collected Sep 15, 2020 12:20, sampling point MRT000	Chloroform 2941 EPA method 524.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 15, 2020 12:20, sampling point MRT000	Bromoform 2942 EPA method 524.2	Not recorded
1.11 ug/l , sample collected Sep 15, 2020 12:20, sampling point MRT000	Bromodichloromethane 2943 EPA method 524.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 15, 2020 12:20, sampling point MRT000	Dibromochloromethane 2944 EPA method 524.2	Not recorded
2.65 ug/l , sample collected Sep 15, 2020 12:20, sampling point MRT000	TTHM 2950	Jan 1, 2020 – Dec 31, 2020
Collected Sep 15, 2020 12:10 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample 200916-008HA Laboratory MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 15, 2020 12:10, sampling point MRT000	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 15, 2020 12:10, sampling point MRT000	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 15, 2020 12:10, sampling point MRT000	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
0.003 mg/l , sample collected Sep 15, 2020 12:10, sampling point MRT000	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 15, 2020 12:10, sampling point MRT000	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.003 mg/l , sample collected Sep 15, 2020 12:10, sampling point MRT000	Total Haloacetic Acids (Haa5) 2456	Jan 1, 2020 – Dec 31, 2020
Collected Jul 24, 2020 06:30 Sampling point DS000 Distribution Sample type Routine Lab sample 200731-007PB Laboratory MSDH Lab
0.1756 mg/l , sample collected Jul 24, 2020 06:30, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2018 – Dec 31, 2020
0.0007 mg/l , sample collected Jul 24, 2020 06:30, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2018 – Dec 31, 2020
Collected Jul 23, 2020 06:00 Sampling point DS000 Distribution Sample type Routine Lab sample 200731-010PB Laboratory MSDH Lab
0.0174 mg/l , sample collected Jul 23, 2020 06:00, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2018 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 23, 2020 06:00, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2018 – Dec 31, 2020
Collected Jul 23, 2020 08:00 Sampling point DS000 Distribution Sample type Routine Lab sample 200731-009PB Laboratory MSDH Lab
0.0164 mg/l , sample collected Jul 23, 2020 08:00, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2018 – Dec 31, 2020
0.0007 mg/l , sample collected Jul 23, 2020 08:00, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2018 – Dec 31, 2020
Collected Jul 23, 2020 10:15 Sampling point DS000 Distribution Sample type Routine Lab sample 200731-008PB Laboratory MSDH Lab
0.2702 mg/l , sample collected Jul 23, 2020 10:15, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2018 – Dec 31, 2020
0.0014 mg/l , sample collected Jul 23, 2020 10:15, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2018 – Dec 31, 2020
Collected Jul 23, 2020 05:45 Sampling point DS000 Distribution Sample type Routine Lab sample 200731-006PB Laboratory MSDH Lab
0.0623 mg/l , sample collected Jul 23, 2020 05:45, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2018 – Dec 31, 2020
0.0007 mg/l , sample collected Jul 23, 2020 05:45, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2018 – Dec 31, 2020
Collected Jul 23, 2020 07:55 Sampling point DS000 Distribution Sample type Routine Lab sample 200731-005PB Laboratory MSDH Lab
0.125 mg/l , sample collected Jul 23, 2020 07:55, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2018 – Dec 31, 2020
0.0026 mg/l , sample collected Jul 23, 2020 07:55, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2018 – Dec 31, 2020

Collected
Mar 31, 2021 09:45

Sampling point
TF104 Treatment Facility TF104

Sample type
Routine

Lab sample
NI-210401-056

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2021
- Nitrate-Nitrite 1038 EPA method QC10107041C
  
  Result
  Not detected below 0.1 mg/l Minimum Reporting Level
- Nitrate 1040 EPA method QC10107041C
  
  Result
  Not detected below 0.08 mg/l Minimum Reporting Level
- Nitrite 1041 EPA method QC10107041C
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Dec 3, 2020 14:10

Sampling point
TF104 Treatment Facility TF104

Sample type
Routine

Lab sample
NI-201204-020

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2020 – Dec 31, 2020
- Nitrate-Nitrite 1038 EPA method QC10107041C
  
  Result
  Not detected below 0.1 mg/l Minimum Reporting Level
- Nitrate 1040 EPA method QC10107041C
  
  Result
  Not detected below 0.08 mg/l Minimum Reporting Level
- Nitrite 1041 EPA method QC10107041C
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Sep 15, 2020 12:20

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
200916-008TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  1.54 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  1.11 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  2.65 ug/l
  
  Monitoring period
  Jan 1, 2020 – Dec 31, 2020
Collected
Sep 15, 2020 12:10

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
200916-008HA

Laboratory
MSDH Lab
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 0.002 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  0.003 mg/l
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.003 mg/l
  
  Monitoring period
  Jan 1, 2020 – Dec 31, 2020
Collected
Jul 24, 2020 06:30

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
200731-007PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2018 – Dec 31, 2020
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.1756 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0007 mg/l
Collected
Jul 23, 2020 06:00

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
200731-010PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2018 – Dec 31, 2020
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0174 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Jul 23, 2020 08:00

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
200731-009PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2018 – Dec 31, 2020
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0164 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0007 mg/l
Collected
Jul 23, 2020 10:15

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
200731-008PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2018 – Dec 31, 2020
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.2702 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0014 mg/l
Collected
Jul 23, 2020 05:45

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
200731-006PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2018 – Dec 31, 2020
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0623 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0007 mg/l
Collected
Jul 23, 2020 07:55

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
200731-005PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2018 – Dec 31, 2020
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.125 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0026 mg/l

Routine (10).