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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.

Coliform and microbial samples

MS0410033 , Old Union Water System

22 of 1,623 results on record were positive for coliform or another organism the agency tests for. The most recent was December 22, 2025.

They fall across 22 of the 1,227 samples on record.

Every sample on record, October 21, 2003 to August 5, 2026. These figures cover the whole record; the list of samples further down is narrowed.

This system’s violations

The most recent samples

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 list below shows 16–30 of 97 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for Old Union Water System, 16 to 30 of 97 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
May 4, 2026 13:32
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
BACT-260211-2942
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 4, 2026 13:32, sampling point TC0010 Coliform (TCR)
Absence , sample collected May 4, 2026 13:32, sampling point TC0010 E. Coli
Collected
Apr 1, 2026 13:43
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-260211-2939
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 1, 2026 13:43, sampling point TC0001 Coliform (TCR)
Absence , sample collected Apr 1, 2026 13:43, sampling point TC0001 E. Coli
Collected
Apr 1, 2026 13:14
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-260211-2938
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 1, 2026 13:14, sampling point TC0003 Coliform (TCR)
Absence , sample collected Apr 1, 2026 13:14, sampling point TC0003 E. Coli
Collected
Apr 1, 2026 12:49
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
BACT-260211-2937
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 1, 2026 12:49, sampling point TC0007 Coliform (TCR)
Absence , sample collected Apr 1, 2026 12:49, sampling point TC0007 E. Coli
Collected
Apr 1, 2026 12:04
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-260211-2935
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 1, 2026 12:04, sampling point TC0009 Coliform (TCR)
Absence , sample collected Apr 1, 2026 12:04, sampling point TC0009 E. Coli
Collected
Apr 1, 2026 12:24
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
BACT-260211-2936
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 1, 2026 12:24, sampling point TC0010 Coliform (TCR)
Absence , sample collected Apr 1, 2026 12:24, sampling point TC0010 E. Coli
Collected
Mar 9, 2026 14:31
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-260211-2931
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 9, 2026 14:31, sampling point TC0003 Coliform (TCR)
Absence , sample collected Mar 9, 2026 14:31, sampling point TC0003 E. Coli
Collected
Mar 9, 2026 13:40
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
BACT-260211-2932
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 9, 2026 13:40, sampling point TC0007 Coliform (TCR)
Absence , sample collected Mar 9, 2026 13:40, sampling point TC0007 E. Coli
Collected
Mar 9, 2026 13:18
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-260211-2933
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 9, 2026 13:18, sampling point TC0009 Coliform (TCR)
Absence , sample collected Mar 9, 2026 13:18, sampling point TC0009 E. Coli
Collected
Mar 9, 2026 12:45
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
BACT-260211-2934
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 9, 2026 12:45, sampling point TC0010 Coliform (TCR)
Absence , sample collected Mar 9, 2026 12:45, sampling point TC0010 E. Coli
Collected
Feb 23, 2026 13:45
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-260128-1335
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 23, 2026 13:45, sampling point TC0004 Coliform (TCR)
Absence , sample collected Feb 23, 2026 13:45, sampling point TC0004 E. Coli
Collected
Feb 23, 2026 14:37
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-260128-1336
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 23, 2026 14:37, sampling point TC0005 Coliform (TCR)
Absence , sample collected Feb 23, 2026 14:37, sampling point TC0005 E. Coli
Collected
Feb 10, 2026 13:30
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-260128-1334
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 10, 2026 13:30, sampling point TC0003 Coliform (TCR)
Absence , sample collected Feb 10, 2026 13:30, sampling point TC0003 E. Coli
Collected
Feb 10, 2026 14:45
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
BACT-260128-1333
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 10, 2026 14:45, sampling point TC0007 Coliform (TCR)
Absence , sample collected Feb 10, 2026 14:45, sampling point TC0007 E. Coli
Collected
Jan 27, 2026 14:20
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-260128-1332
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 27, 2026 14:20, sampling point TC0004 Coliform (TCR)
Absence , sample collected Jan 27, 2026 14:20, sampling point TC0004 E. Coli