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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

MS0040012 , Mississippi Water Company

11 of the 13 analytes this system has been tested for have been detected at least once, across 184 samples on record.

The other 2 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 184 samples on record, detections range from August 25, 1993 to December 19, 2025. 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 Mississippi Water Company, 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 82 of 150 results Mar 9, 1994 Sep 23, 2025
Lead 1030 Inorganic Chemical 49 of 150 results Aug 25, 1993 Sep 23, 2025
TTHM 2950 Organic Chemical 20 of 21 results May 3, 2004 Dec 19, 2025
Chloroform 2941 Organic Chemical 16 of 16 results Jun 28, 2007 Dec 19, 2025
Bromodichloromethane 2943 Organic Chemical 15 of 16 results Jun 28, 2007 Dec 19, 2025
Dibromochloromethane 2944 Organic Chemical 13 of 16 results Jun 28, 2007 Dec 19, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 23 results Jun 28, 2007 Apr 9, 2025
Dichloroacetic Acid 2451 Organic Chemical 2 of 17 results Jul 14, 2008 Jul 11, 2011
Monochloroacetic Acid 2450 Organic Chemical 1 of 17 results Jul 17, 2018 Jul 17, 2018
Trichloroacetic Acid 2452 Organic Chemical 1 of 17 results Jul 11, 2011 Jul 11, 2011
Monobromoacetic Acid 2453 Organic Chemical 1 of 17 results Jul 11, 2011 Jul 11, 2011

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

Choose a date range

The most recent samples, result by result

The table below lists 1–10 of 20 samples, newest first — collected September 23, 2025 to December 19, 2025. The summary above covers all 20.

56 results from the 10 samples listed here: 22 detected, 34 not detected. Across the whole record it is 205 of 493. 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 7 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 Mississippi Water Company, every result from 1 to 10 of 20 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
Dec 19, 2025 13:20
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-176306-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Dec 19, 2025 13:20, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 19, 2025 13:20, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 19, 2025 13:20, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 19, 2025 13:20, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 19, 2025 13:20, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Dec 19, 2025 13:20, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
0.97 ug/l , sample collected Dec 19, 2025 13:20, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 19, 2025 13:20, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
1.1 ug/l , sample collected Dec 19, 2025 13:20, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
0.9 ug/l , sample collected Dec 19, 2025 13:20, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
2.97 ug/l , sample collected Dec 19, 2025 13:20, sampling point SM2 TTHM 2950 EPA method 524.2 Not recorded
Collected
Dec 19, 2025 13:00
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-176306-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Dec 19, 2025 13:00, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 19, 2025 13:00, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 19, 2025 13:00, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 19, 2025 13:00, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 19, 2025 13:00, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Dec 19, 2025 13:00, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
0.98 ug/l , sample collected Dec 19, 2025 13:00, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 19, 2025 13:00, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
1 ug/l , sample collected Dec 19, 2025 13:00, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
0.93 ug/l , sample collected Dec 19, 2025 13:00, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
2.91 ug/l , sample collected Dec 19, 2025 13:00, sampling point SM1 TTHM 2950 EPA method 524.2 Not recorded
Collected
Sep 25, 2025 11:00
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-165604-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Sep 25, 2025 11:00, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 25, 2025 11:00, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 25, 2025 11:00, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 25, 2025 11:00, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 25, 2025 11:00, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Sep 25, 2025 11:00, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2025 – Sep 30, 2025
1.3 ug/l , sample collected Sep 25, 2025 11:00, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 25, 2025 11:00, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
1.3 ug/l , sample collected Sep 25, 2025 11:00, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.1 ug/l , sample collected Sep 25, 2025 11:00, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
3.7 ug/l , sample collected Sep 25, 2025 11:00, sampling point SM2 TTHM 2950 EPA method 524.2 Jul 1, 2025 – Sep 30, 2025
Collected
Sep 25, 2025 10:20
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-165604-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Sep 25, 2025 10:20, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 25, 2025 10:20, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 25, 2025 10:20, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 25, 2025 10:20, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 25, 2025 10:20, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Sep 25, 2025 10:20, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2025 – Sep 30, 2025
1.1 ug/l , sample collected Sep 25, 2025 10:20, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 25, 2025 10:20, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
1.3 ug/l , sample collected Sep 25, 2025 10:20, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.2 ug/l , sample collected Sep 25, 2025 10:20, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
3.6 ug/l , sample collected Sep 25, 2025 10:20, sampling point SM1 TTHM 2950 EPA method 524.2 Jul 1, 2025 – Sep 30, 2025
Collected
Sep 23, 2025 12:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-250924-090
Laboratory
MSDH Lab
0.0156 mg/l , sample collected Sep 23, 2025 12:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 12:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 23, 2025 12:40
Sampling point
LC014 Location withheld
Sample type
Routine
Lab sample
PB-250924-089
Laboratory
MSDH Lab
0.0168 mg/l , sample collected Sep 23, 2025 12:40, sampling point LC014 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 12:40, sampling point LC014 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 23, 2025 12:42
Sampling point
LC018 Location withheld
Sample type
Routine
Lab sample
PB-250924-088
Laboratory
MSDH Lab
0.0207 mg/l , sample collected Sep 23, 2025 12:42, sampling point LC018 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 12:42, sampling point LC018 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 23, 2025 12:41
Sampling point
LC013 Location withheld
Sample type
Routine
Lab sample
PB-250924-087
Laboratory
MSDH Lab
0.0084 mg/l , sample collected Sep 23, 2025 12:41, sampling point LC013 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 12:41, sampling point LC013 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 23, 2025 12:48
Sampling point
LC019 Location withheld
Sample type
Routine
Lab sample
PB-250924-086
Laboratory
MSDH Lab
0.0076 mg/l , sample collected Sep 23, 2025 12:48, sampling point LC019 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 12:48, sampling point LC019 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 23, 2025 12:50
Sampling point
LC017 Location withheld
Sample type
Routine
Lab sample
PB-250924-085
Laboratory
MSDH Lab
0.002 mg/l , sample collected Sep 23, 2025 12:50, sampling point LC017 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 12:50, sampling point LC017 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025

Routine (10).