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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

MS0060044 , Boyle-Skene-Benoit

22 of the 56 analytes this system has been tested for have been detected at least once, across 191 samples on record.

The other 34 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 191 samples on record, detections range from October 14, 1993 to September 30, 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 Boyle-Skene-Benoit, 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 91 of 105 results Oct 14, 1993 Sep 30, 2025
Lead 1030 Inorganic Chemical 87 of 105 results Oct 14, 1993 Sep 30, 2025
TTHM 2950 Organic Chemical 15 of 16 results May 5, 2004 Apr 29, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 13 of 16 results May 5, 2004 Apr 29, 2025
Barium 1010 Inorganic Chemical 7 of 7 results Sep 8, 2003 Jan 10, 2024
Fluoride 1025 Inorganic Chemical 7 of 7 results Sep 8, 2003 Jan 10, 2024
Chloroform 2941 Organic Chemical 7 of 8 results Aug 14, 2006 Aug 16, 2017
Chromium 1020 Inorganic Chemical 4 of 7 results Jan 12, 2004 Jan 10, 2024
Dichloroacetic Acid 2451 Organic Chemical 4 of 5 results Jun 24, 2008 Aug 16, 2017
Trichloroacetic Acid 2452 Organic Chemical 4 of 5 results Jun 24, 2008 Aug 16, 2017
Bromodichloromethane 2943 Organic Chemical 4 of 8 results Nov 16, 2006 Aug 16, 2017
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 16, 2019 Oct 22, 2024
Arsenic 1005 Inorganic Chemical 3 of 7 results Jan 12, 2004 Apr 1, 2020
Selenium 1045 Inorganic Chemical 3 of 7 results Sep 8, 2003 Nov 30, 2011
Dibromoacetic Acid 2454 Organic Chemical 2 of 5 results Jul 15, 2014 Aug 16, 2017
Dibromochloromethane 2944 Organic Chemical 2 of 8 results Jul 15, 2014 Aug 16, 2017
Nickel 1036 Inorganic Chemical 2 of 7 results Sep 8, 2003 Mar 2, 2015
Monochloroacetic Acid 2450 Organic Chemical 2 of 5 results Jun 20, 2011 Jul 15, 2014
Xylenes, Total 2955 Organic Chemical 2 of 11 results Jan 26, 2004 Apr 6, 2004
Bromoform 2942 Organic Chemical 1 of 8 results Aug 16, 2017 Aug 16, 2017
Monobromoacetic Acid 2453 Organic Chemical 1 of 5 results Jun 20, 2011 Jun 20, 2011
Ethylbenzene 2992 Organic Chemical 1 of 11 results Apr 6, 2004 Apr 6, 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 11–20 of 191 samples, newest first — collected September 14, 2022 to April 29, 2025. The summary above covers all 191.

26 results from the 10 samples listed here: 8 detected, 18 not detected. Across the whole record it is 265 of 694. 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 1 sampling point 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 Boyle-Skene-Benoit, every result from 11 to 20 of 191 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
Apr 29, 2025 11:10
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
HA-250430-002
Laboratory
MSDH Lab
52.5 ug/l , sample collected Apr 29, 2025 11:10, sampling point SMD Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2025 – Dec 31, 2027
Collected
Apr 29, 2025 11:10
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
TH-250430-002
Laboratory
MSDH Lab
99.2 ug/l , sample collected Apr 29, 2025 11:10, sampling point SMD TTHM 2950 EPA method 524.2 Jan 1, 2025 – Dec 31, 2027
Collected
Jan 14, 2025 11:30
Sampling point
TF102
Sample type
Routine
Lab sample
NI-250115-009
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 11:30, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 11:30, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 11:30, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Oct 29, 2024 14:00
Sampling point
TF102
Sample type
Routine
Lab sample
CN-241030-002
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 29, 2024 14:00, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2022 – Dec 31, 2024
Collected
Oct 22, 2024 11:30
Sampling point
TF102
Sample type
Routine
Lab sample
NA-241023-016
Laboratory
MSDH Lab
83.9 mg/l , sample collected Oct 22, 2024 11:30, sampling point TF102 Sodium 1052 EPA method 200.7 Jan 1, 2022 – Dec 31, 2024
Collected
Jan 10, 2024 10:00
Sampling point
TF102
Sample type
Routine
Lab sample
NI-240111-034
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 10:00, sampling point TF102 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 10, 2024 10:00, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 10:00, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Jan 10, 2024 10:00
Sampling point
TF102
Sample type
Routine
Lab sample
IN-240111-026
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 10:00, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
0.0024 mg/l , sample collected Jan 10, 2024 10:00, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 10:00, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
0.001 mg/l , sample collected Jan 10, 2024 10:00, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
0.314 mg/l , sample collected Jan 10, 2024 10:00, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2022 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 10:00, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 10:00, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 10:00, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 10:00, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 10:00, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 10:00, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Feb 7, 2023 10:40
Sampling point
TF102
Sample type
Routine
Lab sample
NI-230208-043
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 7, 2023 10:40, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 7, 2023 10:40, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 7, 2023 10:40, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Sep 14, 2022 11:00
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
HA-220915-011
Laboratory
MSDH Lab
31.8 ug/l , sample collected Sep 14, 2022 11:00, sampling point SMD Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2022 – Dec 31, 2024
Collected
Sep 14, 2022 11:00
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
TH-220915-011
Laboratory
MSDH Lab
126 ug/l , sample collected Sep 14, 2022 11:00, sampling point SMD TTHM 2950 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024

Routine (10).