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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 171–180 of 238 samples, newest first — collected July 25, 2007 to July 30, 2007. The summary above covers all 238.

22 results from the 10 samples listed here: 20 detected, 2 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 171 to 180 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
Jul 30, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070731-013HA
Laboratory
MSDH Lab
0.0016 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jul 30, 2007, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2005 – Dec 31, 2007
Collected
Jul 30, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070731-013TH
Laboratory
MSDH Lab
1 ug/l , sample collected Jul 30, 2007, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 30, 2007, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 30, 2007, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.22 ug/l , sample collected Jul 30, 2007, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
2.22 ug/l , sample collected Jul 30, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2005 – Dec 31, 2007
Collected
Jul 26, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070727-066PB
Laboratory
MSDH Lab
0.2061 mg/l , sample collected Jul 26, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.003 mg/l , sample collected Jul 26, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 25, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070727-204PB
Laboratory
MSDH Lab
0.0116 mg/l , sample collected Jul 25, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0011 mg/l , sample collected Jul 25, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 25, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070727-205PB
Laboratory
MSDH Lab
0.0198 mg/l , sample collected Jul 25, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0036 mg/l , sample collected Jul 25, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 25, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070727-196PB
Laboratory
MSDH Lab
0.0147 mg/l , sample collected Jul 25, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0019 mg/l , sample collected Jul 25, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 25, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070727-197PB
Laboratory
MSDH Lab
0.0084 mg/l , sample collected Jul 25, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0025 mg/l , sample collected Jul 25, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 25, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070727-199PB
Laboratory
MSDH Lab
0.0065 mg/l , sample collected Jul 25, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0006 mg/l , sample collected Jul 25, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 25, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070727-147PB
Laboratory
MSDH Lab
0.06 mg/l , sample collected Jul 25, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0007 mg/l , sample collected Jul 25, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 25, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070727-146PB
Laboratory
MSDH Lab
0.0259 mg/l , sample collected Jul 25, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0012 mg/l , sample collected Jul 25, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008

Routine (10).