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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

MS0040006 , Town of McCool

25 of the 57 analytes this system has been tested for have been detected at least once, across 327 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 327 samples on record, detections range from August 30, 1993 to September 25, 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 Town of McCool, 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 155 of 164 results Aug 30, 1993 Sep 23, 2025
Lead 1030 Inorganic Chemical 72 of 164 results Aug 30, 1993 Sep 23, 2025
Barium 1010 Inorganic Chemical 24 of 24 results Jan 29, 2002 Sep 16, 2025
TTHM 2950 Organic Chemical 13 of 22 results May 3, 2004 Sep 25, 2025
Chromium 1020 Inorganic Chemical 10 of 24 results Jan 29, 2002 Nov 6, 2018
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 7, 2011 Jul 10, 2012
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 9 of 23 results Jun 28, 2007 Sep 25, 2025
Nickel 1036 Inorganic Chemical 8 of 24 results Jan 12, 2004 Sep 16, 2025
Chloroform 2941 Organic Chemical 7 of 17 results Jun 28, 2007 Sep 25, 2025
Fluoride 1025 Inorganic Chemical 7 of 24 results Sep 8, 2003 Oct 29, 2024
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 23, 2019 Oct 29, 2024
Dichloroacetic Acid 2451 Organic Chemical 4 of 17 results Sep 6, 2017 Sep 25, 2025
Bromodichloromethane 2943 Organic Chemical 4 of 17 results Sep 6, 2017 Sep 25, 2025
Dibromochloromethane 2944 Organic Chemical 3 of 17 results Mar 27, 2024 Sep 25, 2025
Dibromoacetic Acid 2454 Organic Chemical 2 of 17 results Dec 18, 2024 Sep 25, 2025
Bromoform 2942 Organic Chemical 2 of 17 results Dec 18, 2024 Sep 25, 2025
Trichloroacetic Acid 2452 Organic Chemical 2 of 17 results Sep 6, 2017 Dec 18, 2024
Arsenic 1005 Inorganic Chemical 2 of 24 results Sep 8, 2003 Apr 1, 2020
Monobromoacetic Acid 2453 Organic Chemical 2 of 17 results Jul 15, 2008 Apr 17, 2019
Cyanide 1024 Inorganic Chemical 2 of 22 results Jan 18, 2006 Apr 18, 2011
Selenium 1045 Inorganic Chemical 2 of 24 results Sep 8, 2003 Jan 10, 2005
Sulfate 1055 Inorganic Chemical 2 of 4 results Jan 12, 2004 Jan 12, 2004
Monochloroacetic Acid 2450 Organic Chemical 1 of 17 results Apr 17, 2019 Apr 17, 2019
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 43 results May 5, 2004 May 5, 2004
Nitrate 1040 Inorganic Chemical 1 of 43 results May 5, 2004 May 5, 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 201–210 of 327 samples, newest first — collected July 18, 2005 to June 28, 2007. The summary above covers all 327.

46 results from the 10 samples listed here: 7 detected, 39 not detected. Across the whole record it is 351 of 1,293. 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 Town of McCool, every result from 201 to 210 of 327 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
Jun 28, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070629-013TH
Laboratory
MSDH Lab
1.11 ug/l , sample collected Jun 28, 2007, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 28, 2007, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 28, 2007, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 28, 2007, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
1.11 ug/l , sample collected Jun 28, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2005 – Dec 31, 2007
Collected
Apr 9, 2007
Sampling point
TF104
Sample type
Routine
Lab sample
070410-123NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 9, 2007, sampling point TF104 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 9, 2007, sampling point TF104 Nitrate 1040 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 9, 2007, sampling point TF104 Nitrite 1041 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Collected
Apr 9, 2007
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
070410-120NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 9, 2007, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 9, 2007, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 9, 2007, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Collected
Jun 5, 2006
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
060606-070NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 5, 2006, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jun 5, 2006, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jun 5, 2006, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Jun 5, 2006
Sampling point
TF104
Sample type
Routine
Lab sample
060606-080NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 5, 2006, sampling point TF104 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jun 5, 2006, sampling point TF104 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jun 5, 2006, sampling point TF104 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Jan 18, 2006
Sampling point
TF104
Sample type
Routine
Lab sample
060119-035CN
Laboratory
MSDH Lab
0.0141 mg/l , sample collected Jan 18, 2006, sampling point TF104 Cyanide 1024 EPA method QC10204001X Jan 1, 2004 – Dec 31, 2006
Collected
Jan 18, 2006
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
060119-058CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Jan 17, 2006
Sampling point
TF104
Sample type
Routine
Lab sample
060118-028IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2004 – Dec 31, 2006
0.015239 mg/l , sample collected Jan 17, 2006, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2004 – Dec 31, 2006
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2004 – Dec 31, 2006
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2004 – Dec 31, 2006
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF104 Fluoride 1025 EPA method 380-75WE Jan 1, 2004 – Dec 31, 2006
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2004 – Dec 31, 2006
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2004 – Dec 31, 2006
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2004 – Dec 31, 2006
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2004 – Dec 31, 2006
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2004 – Dec 31, 2006
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF104 Uranium-238 4009 Not recorded
Collected
Jan 17, 2006
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
060118-029IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.182798 mg/l , sample collected Jan 17, 2006, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.156463 mg/l , sample collected Jan 17, 2006, sampling point TF103 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.023299 mg/l , sample collected Jan 17, 2006, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 17, 2006, sampling point TF103 Uranium-238 4009 Not recorded
Collected
Jul 18, 2005
Sampling point
TF104
Sample type
Routine
Lab sample
050719-108NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 18, 2005, sampling point TF104 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 18, 2005, sampling point TF104 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 18, 2005, sampling point TF104 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005

Routine (10).