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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

MS0540015 , Panola-Union W/A

19 of the 57 analytes this system has been tested for have been detected at least once, across 211 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 211 samples on record, detections range from October 13, 2003 to February 10, 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 Panola-Union W/A, 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 60 of 60 results Aug 7, 2007 Sep 19, 2023
Lead 1030 Inorganic Chemical 26 of 60 results Aug 7, 2007 Sep 19, 2023
Nitrate-Nitrite 1038 Inorganic Chemical 24 of 45 results Jun 9, 2004 Feb 10, 2026
Nitrate 1040 Inorganic Chemical 24 of 45 results Jun 9, 2004 Feb 10, 2026
Barium 1010 Inorganic Chemical 20 of 20 results Oct 13, 2003 May 14, 2025
Fluoride 1025 Inorganic Chemical 10 of 20 results Oct 13, 2003 May 14, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 12, 2011 Jul 17, 2012
Chromium 1020 Inorganic Chemical 6 of 20 results Oct 13, 2003 May 14, 2025
Nickel 1036 Inorganic Chemical 4 of 20 results Jan 25, 2010 May 14, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 20 results Aug 11, 2004 Jun 23, 2010
TTHM 2950 Organic Chemical 3 of 20 results Aug 11, 2004 Jun 23, 2010
Nitrite 1041 Inorganic Chemical 2 of 45 results Mar 4, 2013 Mar 9, 2022
Sodium 1052 Inorganic Chemical 2 of 2 results Sep 18, 2019 Sep 18, 2019
Chloroform 2941 Organic Chemical 2 of 15 results Sep 13, 2007 Jun 23, 2010
Bromodichloromethane 2943 Organic Chemical 2 of 15 results Sep 13, 2007 Jun 23, 2010
Dibromochloromethane 2944 Organic Chemical 2 of 15 results Sep 13, 2007 Jun 23, 2010
Selenium 1045 Inorganic Chemical 2 of 20 results Mar 15, 2004 Jan 25, 2010
Dichloroacetic Acid 2451 Organic Chemical 1 of 14 results Jun 23, 2010 Jun 23, 2010
Trichloroacetic Acid 2452 Organic Chemical 1 of 14 results Jun 23, 2010 Jun 23, 2010

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

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The most recent samples, result by result

The table below lists 1–10 of 15 samples, newest first — collected September 30, 2025 to March 24, 2026. The summary above covers all 15.

76 results from the 10 samples listed here: 4 detected, 72 not detected. Across the whole record it is 204 of 1,057. 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 2 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 Panola-Union W/A, every result from 1 to 10 of 15 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 24, 2026 14:15
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-185396-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:15, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:15, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:15, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:15, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:15, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:15, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2026 – Mar 31, 2026
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:15, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:15, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:15, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:15, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:15, sampling point SM1 TTHM 2950 EPA method 524.2 Jan 1, 2026 – Mar 31, 2026
Collected
Mar 24, 2026 14:00
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-185396-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:00, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:00, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:00, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:00, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:00, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:00, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2026 – Mar 31, 2026
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:00, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:00, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:00, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:00, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 24, 2026 14:00, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2026 – Mar 31, 2026
Collected
Feb 10, 2026 12:40
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-260211-016
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 10, 2026 12:40, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2026 – Dec 31, 2026
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 10, 2026 12:40, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2026 – Dec 31, 2026
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 10, 2026 12:40, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2026 – Dec 31, 2026
Collected
Feb 10, 2026 12:02
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-260211-038
Laboratory
MSDH Lab
0.206 mg/l , sample collected Feb 10, 2026 12:02, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
0.206 mg/l , sample collected Feb 10, 2026 12:02, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 10, 2026 12:02, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Feb 10, 2026 12:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-260211-039
Laboratory
MSDH Lab
0.21 mg/l , sample collected Feb 10, 2026 12:15, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
0.21 mg/l , sample collected Feb 10, 2026 12:15, 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 Feb 10, 2026 12:15, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Dec 17, 2025 14:45
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-175938-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:45, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:45, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:45, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:45, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:45, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:45, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:45, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:45, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:45, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:45, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:45, sampling point SM1 TTHM 2950 EPA method 524.2 Oct 1, 2025 – Dec 31, 2025
Collected
Dec 17, 2025 14:30
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-175938-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:30, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:30, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:30, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:30, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:30, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:30, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:30, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:30, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:30, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:30, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 17, 2025 14:30, sampling point SM2 TTHM 2950 EPA method 524.2 Oct 1, 2025 – Dec 31, 2025
Collected
Oct 22, 2025 13:30
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-169276-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:30, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:30, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:30, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:30, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:30, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:30, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:30, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:30, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:30, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:30, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:30, sampling point SM1 TTHM 2950 EPA method 524.2 Oct 1, 2025 – Dec 31, 2025
Collected
Oct 22, 2025 13:00
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-169276-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:00, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:00, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:00, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:00, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:00, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:00, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:00, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:00, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:00, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:00, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2025 13:00, sampling point SM2 TTHM 2950 EPA method 524.2 Oct 1, 2025 – Dec 31, 2025
Collected
Sep 30, 2025 13:25
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
CN-251001-026
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 30, 2025 13:25, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025

Routine (10).