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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

MS0110005 , Town of Port Gibson

41 of the 115 analytes this system has been tested for have been detected at least once, across 783 samples on record.

The other 74 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 783 samples on record, detections range from May 19, 1992 to December 22, 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 Port Gibson, 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 561 of 617 results May 19, 1992 Sep 24, 2025
Lead 1030 Inorganic Chemical 398 of 617 results May 19, 1992 Sep 23, 2025
TTHM 2950 Organic Chemical 23 of 23 results May 12, 2004 Dec 22, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 20 of 22 results May 12, 2004 Dec 22, 2025
Chloroform 2941 Organic Chemical 17 of 17 results Sep 14, 2006 Dec 22, 2025
Bromodichloromethane 2943 Organic Chemical 15 of 17 results Sep 14, 2006 Dec 22, 2025
Dichloroacetic Acid 2451 Organic Chemical 13 of 16 results Jun 26, 2008 Dec 22, 2025
Trichloroacetic Acid 2452 Organic Chemical 13 of 16 results Jun 26, 2008 Dec 22, 2025
Fluoride 1025 Inorganic Chemical 13 of 13 results Mar 12, 2002 Jan 27, 2025
Dibromochloromethane 2944 Organic Chemical 12 of 17 results Jun 6, 2007 Dec 22, 2025
Barium 1010 Inorganic Chemical 11 of 11 results Mar 12, 2002 Jan 27, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 11 of 23 results May 5, 2004 Jan 24, 2018
Nitrate 1040 Inorganic Chemical 11 of 23 results May 5, 2004 Jan 24, 2018
Chromium 1020 Inorganic Chemical 7 of 11 results Mar 12, 2002 Apr 14, 2020
Gross Alpha, Incl. Radon & U 4002 Radionuclide 7 of 7 results Dec 8, 2011 Jul 11, 2012
Monochloroacetic Acid 2450 Organic Chemical 6 of 16 results Jun 26, 2008 Jun 5, 2019
Sodium 1052 Inorganic Chemical 5 of 5 results Jun 28, 2010 Oct 23, 2024
Nickel 1036 Inorganic Chemical 5 of 11 results Mar 12, 2002 Apr 14, 2020
Sulfate 1055 Inorganic Chemical 4 of 4 results Mar 12, 2002 Jun 28, 2010
Monobromoacetic Acid 2453 Organic Chemical 3 of 16 results Jun 26, 2008 Dec 18, 2020
Arsenic 1005 Inorganic Chemical 2 of 11 results Apr 23, 2014 Jan 27, 2025
Calcium 1016 Inorganic Chemical 2 of 2 results Jun 28, 2010 Jun 28, 2010
Chloride 1017 Inorganic Chemical 2 of 2 results Jun 28, 2010 Jun 28, 2010
Magnesium 1031 Inorganic Chemical 2 of 2 results Jun 28, 2010 Jun 28, 2010
Manganese 1032 Inorganic Chemical 2 of 2 results Jun 28, 2010 Jun 28, 2010
Potassium 1042 Inorganic Chemical 2 of 2 results Jun 28, 2010 Jun 28, 2010
Residue, Total, Filterable 1057 Water Quality 2 of 2 results Jun 28, 2010 Jun 28, 2010
Alkalinity, Caco3 Stability 1067 Water Quality 2 of 2 results Jun 28, 2010 Jun 28, 2010
Carbon Dioxide 1901 Water Quality 2 of 2 results Jun 28, 2010 Jun 28, 2010
Color 1905 Water Quality 2 of 2 results Jun 28, 2010 Jun 28, 2010
Hardness, Total (As Caco3) 1915 Water Quality 2 of 2 results Jun 28, 2010 Jun 28, 2010
Alkalinity, Total 1927 Water Quality 2 of 2 results Jun 28, 2010 Jun 28, 2010
PH, Field Result PHFD Water Quality 2 of 2 results Jun 28, 2010 Jun 28, 2010
Selenium 1045 Inorganic Chemical 2 of 11 results Feb 16, 2005 Jan 25, 2006
Dibromoacetic Acid 2454 Organic Chemical 1 of 16 results Jun 5, 2019 Jun 5, 2019
Combined Radium (-226 & -228) 4010 Radionuclide 1 of 9 results Mar 28, 2012 Mar 28, 2012
Radium-226 4020 Radionuclide 1 of 9 results Mar 28, 2012 Mar 28, 2012
Iron 1028 Inorganic Chemical 1 of 2 results Jun 28, 2010 Jun 28, 2010
Iron, Field Result FEFD Inorganic Chemical 1 of 2 results Jun 28, 2010 Jun 28, 2010
Calculated Sodium NACA Water Quality 1 of 1 result Jun 28, 2010 Jun 28, 2010
Cadmium 1015 Inorganic Chemical 1 of 11 results Feb 16, 2005 Feb 16, 2005

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 71–80 of 783 samples, newest first — collected June 3, 2022 to March 22, 2023. The summary above covers all 783.

20 results from the 10 samples listed here: 16 detected, 4 not detected. Across the whole record it is 1,190 of 2,059. 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 9 sampling points 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 Port Gibson, every result from 71 to 80 of 783 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
Mar 22, 2023 13:52
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
HA-230323-002
Laboratory
MSDH Lab
23.4 ug/l , sample collected Mar 22, 2023 13:52, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Jan 18, 2023 13:06
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-230119-025
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 18, 2023 13:06, sampling point TF080 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 18, 2023 13:06, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 18, 2023 13:06, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jun 7, 2022 06:00
Sampling point
LC0023 Location withheld
Sample type
Routine
Lab sample
PB-220610-060
Laboratory
MSDH Lab
0.0402 mg/l , sample collected Jun 7, 2022 06:00, sampling point LC0023 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
1 ug/l , sample collected Jun 7, 2022 06:00, sampling point LC0023 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
Collected
Jun 6, 2022 07:00
Sampling point
LC0025 Location withheld
Sample type
Routine
Lab sample
PB-220610-061
Laboratory
MSDH Lab
0.0167 mg/l , sample collected Jun 6, 2022 07:00, sampling point LC0025 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
25.8 ug/l , sample collected Jun 6, 2022 07:00, sampling point LC0025 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
Collected
Jun 6, 2022 17:17
Sampling point
LC0016 Location withheld
Sample type
Routine
Lab sample
PB-220610-057
Laboratory
MSDH Lab
0.188 mg/l , sample collected Jun 6, 2022 17:17, sampling point LC0016 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
2.4 ug/l , sample collected Jun 6, 2022 17:17, sampling point LC0016 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
Collected
Jun 6, 2022 06:30
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-220610-042
Laboratory
MSDH Lab
0.15 mg/l , sample collected Jun 6, 2022 06:30, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
0.9 ug/l , sample collected Jun 6, 2022 06:30, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
Collected
Jun 3, 2022 10:15
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-220610-063
Laboratory
MSDH Lab
0.0182 mg/l , sample collected Jun 3, 2022 10:15, sampling point LC0001 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
0.6 ug/l , sample collected Jun 3, 2022 10:15, sampling point LC0001 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
Collected
Jun 3, 2022 07:00
Sampling point
LC0019 Location withheld
Sample type
Routine
Lab sample
PB-220610-062
Laboratory
MSDH Lab
0.0781 mg/l , sample collected Jun 3, 2022 07:00, sampling point LC0019 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
1.2 ug/l , sample collected Jun 3, 2022 07:00, sampling point LC0019 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
Collected
Jun 3, 2022 07:45
Sampling point
LC0036 Location withheld
Sample type
Routine
Lab sample
PB-220610-059
Laboratory
MSDH Lab
0.0086 mg/l , sample collected Jun 3, 2022 07:45, sampling point LC0036 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
1.4 ug/l , sample collected Jun 3, 2022 07:45, sampling point LC0036 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
Collected
Jun 3, 2022 08:00
Sampling point
LC0038 Location withheld
Sample type
Routine
Lab sample
PB-220610-058
Laboratory
MSDH Lab
0.0064 mg/l , sample collected Jun 3, 2022 08:00, sampling point LC0038 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 3, 2022 08:00, sampling point LC0038 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022

Routine (10).