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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 181–190 of 327 samples, newest first — collected July 17, 2007 to May 5, 2008. The summary above covers all 327.

47 results from the 10 samples listed here: 5 detected, 42 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 181 to 190 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
May 5, 2008
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
080506-034NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 5, 2008, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 5, 2008, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 5, 2008, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
May 5, 2008
Sampling point
TF104
Sample type
Routine
Lab sample
080506-033NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 5, 2008, sampling point TF104 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 5, 2008, sampling point TF104 Nitrate 1040 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 5, 2008, sampling point TF104 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
Apr 7, 2008
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
080408-044VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 Dichloromethane 2964 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 Benzene 2990 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 Toluene 2991 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 7, 2008, sampling point TF103 Styrene 2996 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Collected
Mar 10, 2008
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
080311-059CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Mar 10, 2008
Sampling point
TF104
Sample type
Routine
Lab sample
080311-058CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF104 Cyanide 1024 EPA method QC10204001X Jan 1, 2007 – Dec 31, 2009
Collected
Dec 3, 2007
Sampling point
TF104
Sample type
Routine
Lab sample
071204-041IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 3, 2007, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2007 – Dec 31, 2009
0.017162 mg/l , sample collected Dec 3, 2007, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2007 – Dec 31, 2009
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Dec 3, 2007, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2007 – Dec 31, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 3, 2007, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2007 – Dec 31, 2009
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Dec 3, 2007, sampling point TF104 Fluoride 1025 EPA method 380-75WE Jan 1, 2007 – Dec 31, 2009
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Dec 3, 2007, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2007 – Dec 31, 2009
0.002948 mg/l , sample collected Dec 3, 2007, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 3, 2007, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2007 – Dec 31, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 3, 2007, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2007 – Dec 31, 2009
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Dec 3, 2007, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2007 – Dec 31, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 3, 2007, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2007 – Dec 31, 2009
Collected
Dec 3, 2007
Sampling point
TF104
Sample type
Routine
Lab sample
071204-054CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Dec 3, 2007, sampling point TF104 Cyanide 1024 EPA method QC10204001X Jan 1, 2007 – Dec 31, 2009
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-163PB
Laboratory
MSDH Lab
0.0121 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-150PB
Laboratory
MSDH Lab
0.0195 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-160PB
Laboratory
MSDH Lab
0.0204 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008

Routine (10).