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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

MS0010002 , City of Natchez

25 of the 60 analytes this system has been tested for have been detected at least once, across 805 samples on record.

The other 35 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 805 samples on record, detections range from September 24, 1992 to June 22, 2026. These figures cover the whole record; the list of samples further down is narrowed.

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 Natchez, 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 302 of 496 results Sep 30, 1992 Jun 17, 2024
Lead 1030 Inorganic Chemical 293 of 496 results Sep 24, 1992 Jun 17, 2024
TTHM 2950 Organic Chemical 125 of 125 results Mar 9, 2004 Jun 16, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 122 of 125 results Mar 9, 2004 Jun 16, 2026
Chloroform 2941 Organic Chemical 107 of 107 results Jul 24, 2006 Jun 16, 2026
Bromodichloromethane 2943 Organic Chemical 107 of 107 results Jul 24, 2006 Jun 16, 2026
Dibromochloromethane 2944 Organic Chemical 107 of 107 results Jul 24, 2006 Jun 16, 2026
Dichloroacetic Acid 2451 Organic Chemical 104 of 104 results Dec 10, 2007 Jun 16, 2026
Trichloroacetic Acid 2452 Organic Chemical 104 of 104 results Dec 10, 2007 Jun 16, 2026
Monochloroacetic Acid 2450 Organic Chemical 36 of 104 results Dec 10, 2007 Apr 15, 2019
Dibromoacetic Acid 2454 Organic Chemical 32 of 104 results Dec 10, 2007 Nov 27, 2017
Nitrate-Nitrite 1038 Inorganic Chemical 21 of 23 results May 3, 2004 Jan 28, 2026
Nitrate 1040 Inorganic Chemical 21 of 23 results May 3, 2004 Jan 28, 2026
Fluoride 1025 Inorganic Chemical 12 of 12 results Jan 15, 2002 Jun 22, 2026
Barium 1010 Inorganic Chemical 11 of 11 results Jan 15, 2002 Jan 13, 2025
Chromium 1020 Inorganic Chemical 7 of 11 results Jan 12, 2004 Jan 13, 2025
Monobromoacetic Acid 2453 Organic Chemical 5 of 104 results Aug 10, 2010 Mar 12, 2019
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 16, 2019 Oct 14, 2024
Gross Alpha, Incl. Radon & U 4002 Radionuclide 1 of 1 result Mar 20, 2018 Mar 20, 2018
Radium-226 4020 Radionuclide 1 of 3 results Mar 20, 2018 Mar 20, 2018
Gross Alpha, Excl. Radon & U 4000 Radionuclide 1 of 2 results Jan 28, 2009 Jan 28, 2009
Gross Alpha Particle Activity 4109 Radionuclide 1 of 2 results Jan 28, 2009 Jan 28, 2009
Nickel 1036 Inorganic Chemical 1 of 11 results Mar 10, 2008 Mar 10, 2008
Mercury 1035 Inorganic Chemical 1 of 11 results Jan 10, 2005 Jan 10, 2005
Selenium 1045 Inorganic Chemical 1 of 11 results Jan 10, 2005 Jan 10, 2005

Showing samples collected between September 26, 2024 and September 26, 2026. That is this page’s default, not a limit on what the agency records.

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The most recent samples, result by result

The table below lists 11–12 of 12 samples, newest first — collected October 14, 2024 to January 13, 2025. The summary above covers all 12.

4 results from the 2 samples listed here: 3 detected, 1 not detected. 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 Natchez, every result from 11 to 12 of 12 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
Jan 13, 2025 16:10
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-250114-025
Laboratory
MSDH Lab
0.155 mg/l , sample collected Jan 13, 2025 16:10, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
0.155 mg/l , sample collected Jan 13, 2025 16:10, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 13, 2025 16:10, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Oct 14, 2024 10:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NA-241015-018
Laboratory
MSDH Lab
126 mg/l , sample collected Oct 14, 2024 10:00, sampling point TF080 Sodium 1052 EPA method 200.7 Jan 1, 2022 – Dec 31, 2024

Routine (2).