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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 141–150 of 321 samples, newest first — collected July 17, 2008 to April 13, 2009. The summary above covers all 321.

29 results from the 10 samples listed here: 18 detected, 11 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.

Chemical and radiological sample results for Town of McLain, every result from 141 to 150 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
Apr 13, 2009
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
090414-023NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Apr 13, 2009, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Apr 13, 2009, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Apr 13, 2009, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Apr 13, 2009
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
090414-022NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Apr 13, 2009, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Apr 13, 2009, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Apr 13, 2009, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Sep 15, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080916-001TH
Laboratory
MSDH Lab
2.2 ug/l , sample collected Sep 15, 2008, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 15, 2008, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
2.37 ug/l , sample collected Sep 15, 2008, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
2.36 ug/l , sample collected Sep 15, 2008, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
6.93 ug/l , sample collected Sep 15, 2008, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2008 – Dec 31, 2010
Collected
Sep 15, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080916-001HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 15, 2008, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Sep 15, 2008, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 15, 2008, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 15, 2008, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 15, 2008, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. , sample collected Sep 15, 2008, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2008 – Dec 31, 2010
Collected
Jul 17, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080718-050PB
Laboratory
MSDH Lab
0.0039 mg/l , sample collected Jul 17, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2008
0.0014 mg/l , sample collected Jul 17, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2008
Collected
Jul 17, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080718-049PB
Laboratory
MSDH Lab
0.008 mg/l , sample collected Jul 17, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2008
0.0011 mg/l , sample collected Jul 17, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2008
Collected
Jul 17, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080718-048PB
Laboratory
MSDH Lab
0.0295 mg/l , sample collected Jul 17, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2008
0.0011 mg/l , sample collected Jul 17, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2008
Collected
Jul 17, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080718-047PB
Laboratory
MSDH Lab
0.0111 mg/l , sample collected Jul 17, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2008
0.0007 mg/l , sample collected Jul 17, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2008
Collected
Jul 17, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080718-046PB
Laboratory
MSDH Lab
0.0597 mg/l , sample collected Jul 17, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2008
0.0011 mg/l , sample collected Jul 17, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2008
Collected
Jul 17, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080718-045PB
Laboratory
MSDH Lab
0.0042 mg/l , sample collected Jul 17, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2008
0.0009 mg/l , sample collected Jul 17, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2008

Routine (10).