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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

MS0210003 , Town of McLain

20 of the 58 analytes this system has been tested for have been detected at least once, across 321 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 321 samples on record, detections range from November 17, 1993 to February 10, 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 McLain, 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
Lead 1030 Inorganic Chemical 130 of 181 results Nov 17, 1993 Sep 4, 2024
Copper, Free 1022 Inorganic Chemical 124 of 181 results Nov 17, 1993 Sep 4, 2024
Barium 1010 Inorganic Chemical 20 of 20 results May 21, 2002 Feb 3, 2025
Fluoride 1025 Inorganic Chemical 20 of 20 results May 21, 2002 Feb 3, 2025
Arsenic 1005 Inorganic Chemical 18 of 20 results May 21, 2002 Feb 3, 2025
Chromium 1020 Inorganic Chemical 10 of 20 results May 21, 2002 Feb 3, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 13, 2011 Jul 11, 2012
Nickel 1036 Inorganic Chemical 8 of 20 results Feb 2, 2004 Feb 3, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 7 of 9 results Jul 30, 2007 Feb 10, 2025
Sodium 1052 Inorganic Chemical 5 of 5 results Oct 6, 2019 Jan 29, 2024
TTHM 2950 Organic Chemical 5 of 8 results May 26, 2004 Sep 26, 2022
Dichloroacetic Acid 2451 Organic Chemical 4 of 5 results Sep 15, 2008 Jul 24, 2018
Sulfate 1055 Inorganic Chemical 4 of 4 results May 21, 2002 Feb 2, 2004
Chloroform 2941 Organic Chemical 3 of 5 results Jul 30, 2007 Jul 24, 2018
Bromodichloromethane 2943 Organic Chemical 3 of 5 results Jul 30, 2007 Jul 24, 2018
Dibromochloromethane 2944 Organic Chemical 3 of 5 results Jul 30, 2007 Jul 24, 2018
Antimony, Total 1074 Inorganic Chemical 1 of 20 results Oct 15, 2018 Oct 15, 2018
Monochloroacetic Acid 2450 Organic Chemical 1 of 5 results Jul 24, 2018 Jul 24, 2018
Trichloroacetic Acid 2452 Organic Chemical 1 of 5 results Jul 24, 2018 Jul 24, 2018
Cyanide 1024 Inorganic Chemical 1 of 20 results Jul 30, 2014 Jul 30, 2014

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 321 samples, newest first — collected September 26, 2022 to September 3, 2024. The summary above covers all 321.

21 results from the 10 samples listed here: 8 detected, 13 not detected. Across the whole record it is 378 of 1,151. 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 Town of McLain, every result from 11 to 20 of 321 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
Sep 3, 2024 09:00
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
PB-240910-009
Laboratory
MSDH Lab
0.0229 mg/l , sample collected Sep 3, 2024 09:00, sampling point TC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
1 ug/l , sample collected Sep 3, 2024 09:00, sampling point TC0003 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Sep 3, 2024 05:15
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
PB-240910-007
Laboratory
MSDH Lab
0.0531 mg/l , sample collected Sep 3, 2024 05:15, sampling point TC0007 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
0.8 ug/l , sample collected Sep 3, 2024 05:15, sampling point TC0007 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Sep 1, 2024 06:00
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
PB-240910-008
Laboratory
MSDH Lab
0.0013 mg/l , sample collected Sep 1, 2024 06:00, sampling point TC0006 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 1, 2024 06:00, sampling point TC0006 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jan 29, 2024 11:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-240130-052
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 29, 2024 11:30, 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 29, 2024 11:30, 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 29, 2024 11:30, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Jan 29, 2024 11:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-240130-051
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 29, 2024 11:30, sampling point TF101 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 29, 2024 11:30, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 29, 2024 11:30, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Jan 29, 2024 11:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NA-240130-015
Laboratory
MSDH Lab
42.6 mg/l , sample collected Jan 29, 2024 11:30, sampling point TF102 Sodium 1052 EPA method 200.7 Jan 1, 2022 – Dec 31, 2024
Collected
Jan 29, 2024 11:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NA-240130-014
Laboratory
MSDH Lab
41.3 mg/l , sample collected Jan 29, 2024 11:30, sampling point TF101 Sodium 1052 EPA method 200.7 Jan 1, 2022 – Dec 31, 2024
Collected
Jan 31, 2023 11:39
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-230201-033
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 11:39, 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 Jan 31, 2023 11:39, 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 Jan 31, 2023 11:39, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jan 31, 2023 11:48
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-230201-032
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 11:48, sampling point TF101 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 31, 2023 11:48, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 11:48, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Sep 26, 2022 13:10
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
TH-220927-002
Laboratory
MSDH Lab
20.2 ug/l , sample collected Sep 26, 2022 13:10, sampling point SM1 TTHM 2950 EPA method 524.2 Jan 1, 2020 – Dec 31, 2022

Routine (10).