Skip to main content
Alpha

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 31–40 of 327 samples, newest first — collected June 17, 2022 to January 31, 2024. The summary above covers all 327.

40 results from the 10 samples listed here: 6 detected, 34 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.

We withheld the location of 3 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 Town of McCool, every result from 31 to 40 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
Jan 31, 2024 12:10
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-240201-059
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 31, 2024 12:10, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 31, 2024 12:10, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 31, 2024 12:10, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Mar 29, 2023 14:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-230330-005
Laboratory
MSDH Lab
5.93 ug/l , sample collected Mar 29, 2023 14:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Collected
Mar 29, 2023 14:10
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-230330-005
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 29, 2023 14:10, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Dec 31, 2023
Collected
Jan 11, 2023 12:20
Sampling point
TF104
Sample type
Routine
Lab sample
NI-230112-015
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 11, 2023 12:20, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 11, 2023 12:20, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 11, 2023 12:20, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jan 11, 2023 12:00
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-230112-014
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 11, 2023 12:00, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 11, 2023 12:00, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 11, 2023 12:00, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Aug 30, 2022 13:15
Sampling point
TF104
Sample type
Routine
Lab sample
VO-220831-001
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 Dichloromethane 2964 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 Benzene 2990 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 Toluene 2991 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2022 13:15, sampling point TF104 Styrene 2996 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Collected
Jun 30, 2022 07:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-220630-153
Laboratory
MSDH Lab
0.0432 mg/l , sample collected Jun 30, 2022 07:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 30, 2022 07:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jun 17, 2022 04:00
Sampling point
LC0016 Location withheld
Sample type
Routine
Lab sample
PB-220621-009
Laboratory
MSDH Lab
0.26 mg/l , sample collected Jun 17, 2022 04:00, sampling point LC0016 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 17, 2022 04:00, sampling point LC0016 Lead 1030 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jun 17, 2022 06:00
Sampling point
LC0019 Location withheld
Sample type
Routine
Lab sample
PB-220621-005
Laboratory
MSDH Lab
0.0037 mg/l , sample collected Jun 17, 2022 06:00, sampling point LC0019 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 17, 2022 06:00, sampling point LC0019 Lead 1030 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jun 17, 2022 06:00
Sampling point
LC0006 Location withheld
Sample type
Routine
Lab sample
PB-220621-004
Laboratory
MSDH Lab
0.12 mg/l , sample collected Jun 17, 2022 06:00, sampling point LC0006 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.8 ug/l , sample collected Jun 17, 2022 06:00, sampling point LC0006 Lead 1030 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022

Routine (10).