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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

MS0180009 , S MS Public Water Auth-McLaurin

20 of the 57 analytes this system has been tested for have been detected at least once, across 320 samples on record.

The other 37 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 320 samples on record, detections range from September 22, 1993 to December 16, 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 S MS Public Water Auth-McLaurin, 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 168 of 202 results Sep 22, 1993 Dec 16, 2025
Lead 1030 Inorganic Chemical 71 of 202 results Sep 22, 1993 Dec 16, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 21 of 23 results May 12, 2004 Feb 4, 2025
Nitrate 1040 Inorganic Chemical 21 of 23 results May 12, 2004 Feb 4, 2025
Barium 1010 Inorganic Chemical 11 of 11 results May 14, 2002 Feb 4, 2025
Nickel 1036 Inorganic Chemical 11 of 11 results May 14, 2002 Feb 4, 2025
Xylenes, Total 2955 Organic Chemical 8 of 31 results Jan 14, 2004 Jun 14, 2010
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 19 results Sep 15, 2008 Mar 19, 2024
Chromium 1020 Inorganic Chemical 5 of 11 results May 14, 2002 Oct 2, 2018
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 12, 2011 Jul 10, 2012
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 23, 2019 Jan 30, 2024
TTHM 2950 Organic Chemical 3 of 20 results May 19, 2004 Jul 10, 2012
Cadmium 1015 Inorganic Chemical 3 of 11 results Jan 28, 2004 Jan 25, 2006
Ethylbenzene 2992 Organic Chemical 3 of 31 results Jan 14, 2004 May 26, 2005
Monochloroacetic Acid 2450 Organic Chemical 2 of 15 results Jul 24, 2018 May 5, 2020
Selenium 1045 Inorganic Chemical 2 of 11 results Mar 2, 2005 Jan 25, 2006
Fluoride 1025 Inorganic Chemical 1 of 11 results Jan 26, 2021 Jan 26, 2021
Dichloroacetic Acid 2451 Organic Chemical 1 of 15 results Jul 10, 2012 Jul 10, 2012
Bromodichloromethane 2943 Organic Chemical 1 of 15 results Jul 10, 2012 Jul 10, 2012
Monobromoacetic Acid 2453 Organic Chemical 1 of 15 results Sep 15, 2008 Sep 15, 2008

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 111–120 of 320 samples, newest first — collected June 2, 2020 to May 12, 2021. The summary above covers all 320.

31 results from the 10 samples listed here: 13 detected, 18 not detected. Across the whole record it is 346 of 1,460. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Units in this table

Lead is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

Chemical and radiological sample results for S MS Public Water Auth-McLaurin, every result from 111 to 120 of 320 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
May 12, 2021 11:20
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
CN-210513-022
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 12, 2021 11:20, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
May 12, 2021 11:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-210513-012
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 12, 2021 11:30, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Feb 23, 2021 12:10
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
PB-210224-002
Laboratory
MSDH Lab
0.0049 mg/l , sample collected Feb 23, 2021 12:10, sampling point TF080 Copper, Free 1022 EPA method 200.8 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 23, 2021 12:10, sampling point TF080 Lead 1030 EPA method 200.8 Not recorded
Collected
Feb 9, 2021 12:05
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NA-210210-024
Laboratory
MSDH Lab
1.45 mg/l , sample collected Feb 9, 2021 12:05, sampling point TF080 Sodium 1052 EPA method 200.7 Not recorded
Collected
Feb 9, 2021 12:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-210210-030
Laboratory
MSDH Lab
0.571 mg/l , sample collected Feb 9, 2021 12:00, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
0.571 mg/l , sample collected Feb 9, 2021 12:00, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 9, 2021 12:00, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Jan 26, 2021 13:20
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-210127-007
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 26, 2021 13:20, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0173 mg/l , sample collected Jan 26, 2021 13:20, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 26, 2021 13:20, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 26, 2021 13:20, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.248 mg/l , sample collected Jan 26, 2021 13:20, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 26, 2021 13:20, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0006 mg/l , sample collected Jan 26, 2021 13:20, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 26, 2021 13:20, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 26, 2021 13:20, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 26, 2021 13:20, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 26, 2021 13:20, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Nov 17, 2020 12:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
201118-004HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:30, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:30, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:30, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:30, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:30, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Jun 2, 2020 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200603-079PB
Laboratory
MSDH Lab
1.131 mg/l , sample collected Jun 2, 2020 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0011 mg/l , sample collected Jun 2, 2020 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 2, 2020 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200603-078PB
Laboratory
MSDH Lab
0.4712 mg/l , sample collected Jun 2, 2020 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0026 mg/l , sample collected Jun 2, 2020 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 2, 2020
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200603-077PB
Laboratory
MSDH Lab
0.1179 mg/l , sample collected Jun 2, 2020, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0042 mg/l , sample collected Jun 2, 2020, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020

Routine (10).