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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

MS0610017 , City of Pearl

44 of the 77 analytes this system has been tested for have been detected at least once, across 1,062 samples on record.

The other 33 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 1,062 samples on record, detections range from July 23, 2002 to June 23, 2026. 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 City of Pearl, 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 271 of 271 results Jun 8, 2004 Sep 4, 2025
Lead 1030 Inorganic Chemical 180 of 271 results Jun 8, 2004 Sep 4, 2025
Fluoride 1025 Inorganic Chemical 103 of 106 results Jul 23, 2002 Jun 23, 2026
Barium 1010 Inorganic Chemical 99 of 101 results Jul 23, 2002 Apr 10, 2025
TTHM 2950 Organic Chemical 83 of 83 results Mar 15, 2004 Jun 17, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 75 of 79 results Mar 15, 2004 Jun 17, 2026
Chromium 1020 Inorganic Chemical 72 of 101 results Jul 23, 2002 Apr 10, 2025
Chloroform 2941 Organic Chemical 63 of 63 results Jul 31, 2006 Jun 17, 2026
Bromodichloromethane 2943 Organic Chemical 59 of 63 results Jul 31, 2006 Jun 17, 2026
Dichloroacetic Acid 2451 Organic Chemical 50 of 50 results Dec 3, 2007 Jun 17, 2026
Trichloroacetic Acid 2452 Organic Chemical 47 of 50 results Dec 3, 2007 Jun 17, 2026
Sodium 1052 Inorganic Chemical 30 of 30 results Mar 2, 2009 Jun 23, 2026
Dibromochloromethane 2944 Organic Chemical 24 of 63 results Jul 31, 2006 Jun 17, 2026
Monochloroacetic Acid 2450 Organic Chemical 16 of 50 results Dec 3, 2007 Jun 13, 2018
Nickel 1036 Inorganic Chemical 14 of 99 results Apr 14, 2008 Apr 10, 2025
Sulfate 1055 Inorganic Chemical 13 of 14 results Jul 23, 2002 Mar 5, 2010
Radium-226 4020 Radionuclide 11 of 40 results Dec 17, 2018 Sep 26, 2019
Combined Radium (-226 & -228) 4010 Radionuclide 8 of 40 results Mar 10, 2010 Sep 26, 2019
Calcium 1016 Inorganic Chemical 6 of 6 results Mar 2, 2009 Mar 5, 2010
Potassium 1042 Inorganic Chemical 6 of 6 results Mar 2, 2009 Mar 5, 2010
Residue, Total, Filterable 1057 Water Quality 6 of 6 results Mar 2, 2009 Mar 5, 2010
Alkalinity, Caco3 Stability 1067 Water Quality 6 of 6 results Mar 2, 2009 Mar 5, 2010
Carbon Dioxide 1901 Water Quality 6 of 6 results Mar 2, 2009 Mar 5, 2010
Color 1905 Water Quality 6 of 6 results Mar 2, 2009 Mar 5, 2010
Hardness, Total (As Caco3) 1915 Water Quality 6 of 6 results Mar 2, 2009 Mar 5, 2010
Alkalinity, Total 1927 Water Quality 6 of 6 results Mar 2, 2009 Mar 5, 2010
Calculated Sodium NACA Water Quality 6 of 6 results Mar 2, 2009 Mar 5, 2010
PH, Field Result PHFD Water Quality 6 of 6 results Mar 2, 2009 Mar 5, 2010
Dichloromethane 2964 Organic Chemical 6 of 92 results Aug 24, 2004 Aug 24, 2004
Cyanide 1024 Inorganic Chemical 5 of 103 results Apr 20, 2005 May 2, 2011
Iron, Field Result FEFD Inorganic Chemical 5 of 5 results Mar 5, 2010 Mar 5, 2010
Selenium 1045 Inorganic Chemical 5 of 101 results Oct 20, 2003 Dec 12, 2005
Monobromoacetic Acid 2453 Organic Chemical 4 of 50 results Dec 3, 2007 Oct 14, 2020
Manganese 1032 Inorganic Chemical 3 of 6 results Mar 5, 2010 Mar 5, 2010
Radium-228 4030 Radionuclide 2 of 40 results Mar 10, 2010 Sep 26, 2019
Gross Alpha Particle Activity 4109 Radionuclide 2 of 21 results Jun 26, 2012 Sep 10, 2012
Xylenes, Total 2955 Organic Chemical 2 of 92 results Sep 1, 2010 Sep 1, 2010
Arsenic 1005 Inorganic Chemical 2 of 101 results Dec 12, 2005 Dec 12, 2005
Cadmium 1015 Inorganic Chemical 2 of 101 results Dec 12, 2005 Dec 12, 2005
Gross Beta Particle Activity 4100 Radionuclide 1 of 1 result Mar 10, 2010 Mar 10, 2010
Iron 1028 Inorganic Chemical 1 of 6 results Mar 5, 2010 Mar 5, 2010
PH 1925 Water Quality 1 of 1 result Mar 2, 2009 Mar 2, 2009
Bromoform 2942 Organic Chemical 1 of 63 results Jun 30, 2008 Jun 30, 2008
Dibromoacetic Acid 2454 Organic Chemical 1 of 50 results Dec 3, 2007 Dec 3, 2007

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 101–110 of 1,062 samples, newest first — collected February 6, 2024 to April 17, 2024. The summary above covers all 1,062.

54 results from the 10 samples listed here: 8 detected, 46 not detected. Across the whole record it is 1,321 of 5,383. 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 City of Pearl, every result from 101 to 110 of 1,062 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 17, 2024 10:39
Sampling point
TF107 Treatment Plant T107
Sample type
Routine
Lab sample
NI-240417-091
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 10:39, sampling point TF107 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 10:39, sampling point TF107 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 10:39, sampling point TF107 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Apr 17, 2024 10:27
Sampling point
TF106 Treatment Plant T106
Sample type
Routine
Lab sample
NI-240417-090
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 10:27, sampling point TF106 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 10:27, sampling point TF106 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 10:27, sampling point TF106 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Apr 17, 2024 08:30
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
NI-240417-089
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 08:30, sampling point TF105 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 08:30, sampling point TF105 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 08:30, sampling point TF105 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Apr 17, 2024 10:57
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NI-240417-088
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 10:57, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 10:57, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 10:57, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Apr 17, 2024 11:23
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-240417-087
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 11:23, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 11:23, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 11:23, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Apr 17, 2024 12:12
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-240417-086
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 12:12, 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 Apr 17, 2024 12:12, 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 Apr 17, 2024 12:12, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Apr 17, 2024 08:54
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-240417-085
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 08:54, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Not recorded
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 08:54, sampling point TF101 Nitrate 1040 EPA method QC10107041C Not recorded
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 17, 2024 08:54, sampling point TF101 Nitrite 1041 EPA method QC10107041C Not recorded
Collected
Feb 13, 2024 11:00
Sampling point
TF112 Treatment Facility TF112
Sample type
Routine
Lab sample
IN-240214-011
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2024 11:00, sampling point TF112 Arsenic 1005 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
0.0011 mg/l , sample collected Feb 13, 2024 11:00, sampling point TF112 Barium 1010 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2024 11:00, sampling point TF112 Cadmium 1015 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2024 11:00, sampling point TF112 Chromium 1020 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
0.215 mg/l , sample collected Feb 13, 2024 11:00, sampling point TF112 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2024 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2024 11:00, sampling point TF112 Mercury 1035 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2024 11:00, sampling point TF112 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 13, 2024 11:00, sampling point TF112 Selenium 1045 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2024 11:00, sampling point TF112 Antimony, Total 1074 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2024 11:00, sampling point TF112 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2024 11:00, sampling point TF112 Thallium, Total 1085 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Collected
Feb 6, 2024 11:11
Sampling point
TF111 El Dorado Road
Sample type
Routine
Lab sample
IN-240207-045
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:11, sampling point TF111 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0013 mg/l , sample collected Feb 6, 2024 11:11, sampling point TF111 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:11, sampling point TF111 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0031 mg/l , sample collected Feb 6, 2024 11:11, sampling point TF111 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.123 mg/l , sample collected Feb 6, 2024 11:11, sampling point TF111 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:11, sampling point TF111 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:11, sampling point TF111 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:11, sampling point TF111 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:11, sampling point TF111 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:11, sampling point TF111 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:11, sampling point TF111 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 6, 2024 11:32
Sampling point
TF107 Treatment Plant T107
Sample type
Routine
Lab sample
IN-240207-044
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:32, sampling point TF107 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0027 mg/l , sample collected Feb 6, 2024 11:32, sampling point TF107 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:32, sampling point TF107 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0029 mg/l , sample collected Feb 6, 2024 11:32, sampling point TF107 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.114 mg/l , sample collected Feb 6, 2024 11:32, sampling point TF107 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:32, sampling point TF107 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:32, sampling point TF107 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:32, sampling point TF107 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:32, sampling point TF107 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:32, sampling point TF107 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 6, 2024 11:32, sampling point TF107 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025

Routine (10).