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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

MS0240214 , McGill Wellworks, Inc

19 of the 57 analytes this system has been tested for have been detected at least once, across 238 samples on record.

The other 38 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 238 samples on record, detections range from October 4, 2000 to February 12, 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 McGill Wellworks, Inc, 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 77 of 99 results Oct 4, 2000 Dec 7, 2023
Lead 1030 Inorganic Chemical 52 of 99 results Jul 3, 2001 Dec 7, 2023
Barium 1010 Inorganic Chemical 22 of 22 results Sep 15, 2003 Feb 12, 2025
Fluoride 1025 Inorganic Chemical 21 of 22 results Sep 15, 2003 Feb 12, 2025
Chromium 1020 Inorganic Chemical 14 of 22 results Sep 15, 2003 Apr 22, 2020
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 8 of 10 results Jul 30, 2007 Feb 12, 2025
TTHM 2950 Organic Chemical 6 of 8 results Jun 28, 2004 Feb 12, 2025
Nickel 1036 Inorganic Chemical 6 of 22 results Dec 4, 2006 Apr 22, 2020
Arsenic 1005 Inorganic Chemical 5 of 22 results Apr 7, 2008 Jan 17, 2024
Sodium 1052 Inorganic Chemical 2 of 2 results Feb 24, 2021 Feb 24, 2021
Chloroform 2941 Organic Chemical 2 of 5 results Jul 30, 2007 Aug 1, 2018
Dichloroacetic Acid 2451 Organic Chemical 2 of 5 results Sep 17, 2014 Sep 17, 2014
Selenium 1045 Inorganic Chemical 2 of 22 results Mar 16, 2005 Feb 6, 2006
Sulfate 1055 Inorganic Chemical 2 of 2 results Sep 15, 2003 Feb 12, 2004
Monochloroacetic Acid 2450 Organic Chemical 1 of 5 results Aug 1, 2018 Aug 1, 2018
Monobromoacetic Acid 2453 Organic Chemical 1 of 5 results Sep 22, 2008 Sep 22, 2008
Dibromochloromethane 2944 Organic Chemical 1 of 5 results Jul 30, 2007 Jul 30, 2007
Cadmium 1015 Inorganic Chemical 1 of 22 results Mar 16, 2005 Mar 16, 2005
Cyanide 1024 Inorganic Chemical 1 of 17 results Sep 15, 2003 Sep 15, 2003

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 81–90 of 238 samples, newest first — collected June 27, 2017 to January 23, 2018. The summary above covers all 238.

39 results from the 10 samples listed here: 11 detected, 28 not detected. Across the whole record it is 226 of 1,240. 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 McGill Wellworks, Inc, every result from 81 to 90 of 238 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 23, 2018 01:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
180124-002VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 23, 2018 01:45, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2018 – Mar 31, 2018
Collected
Jan 22, 2018 13:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
3883087
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Jan 22, 2018 13:30, sampling point TF101 Combined Radium (-226 & -228) 4010 EPA method 7500-RA Not recorded
Not detected below 0.23 pci/l Minimum Reporting Level , sample collected Jan 22, 2018 13:30, sampling point TF101 Radium-226 4020 EPA method 7500-RAB Jan 1, 2018 – Dec 31, 2026
Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Jan 22, 2018 13:30, sampling point TF101 Radium-228 4030 EPA method 7500-RAD Jan 1, 2018 – Dec 31, 2026
Collected
Jan 22, 2018 13:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
3883086
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2.1 pci/l Minimum Reporting Level , sample collected Jan 22, 2018 13:30, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 7110B Jan 1, 2018 – Dec 31, 2026
Collected
Jun 27, 2017
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170628-020PB
Laboratory
MSDH Lab
0.0051 mg/l , sample collected Jun 27, 2017, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 27, 2017, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jun 27, 2017
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170628-019PB
Laboratory
MSDH Lab
0.0289 mg/l , sample collected Jun 27, 2017, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0012 mg/l , sample collected Jun 27, 2017, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jun 27, 2017 06:37
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170628-018PB
Laboratory
MSDH Lab
0.0156 mg/l , sample collected Jun 27, 2017 06:37, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0016 mg/l , sample collected Jun 27, 2017 06:37, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jun 27, 2017
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170628-017PB
Laboratory
MSDH Lab
0.2872 mg/l , sample collected Jun 27, 2017, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0005 mg/l , sample collected Jun 27, 2017, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jun 27, 2017
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170628-016PB
Laboratory
MSDH Lab
0.0042 mg/l , sample collected Jun 27, 2017, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 27, 2017, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jun 27, 2017
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170628-015PB
Laboratory
MSDH Lab
0.0176 mg/l , sample collected Jun 27, 2017, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0009 mg/l , sample collected Jun 27, 2017, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jun 27, 2017
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170628-014PB
Laboratory
MSDH Lab
0.0437 mg/l , sample collected Jun 27, 2017, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 27, 2017, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017

Routine (10).