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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

MS0700011 , Town of Walnut

6 of 754 results on record were positive for coliform or another organism the agency tests for. The most recent was August 22, 2022.

They fall across 6 of the 574 samples on record.

Every sample on record, October 6, 2003 to July 22, 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 26, 2024 and September 26, 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 1–15 of 44 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for Town of Walnut, 1 to 15 of 44 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Jul 22, 2026 16:00
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22048
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 22, 2026 16:00, sampling point TC0001 Coliform (TCR)
Absence , sample collected Jul 22, 2026 16:00, sampling point TC0001 E. Coli
Collected
Jul 22, 2026 15:45
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22047
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 22, 2026 15:45, sampling point TC0003 Coliform (TCR)
Absence , sample collected Jul 22, 2026 15:45, sampling point TC0003 E. Coli
Collected
Jun 22, 2026 15:35
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22038
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 22, 2026 15:35, sampling point TC0001 Coliform (TCR)
Absence , sample collected Jun 22, 2026 15:35, sampling point TC0001 E. Coli
Collected
Jun 22, 2026 15:15
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22037
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 22, 2026 15:15, sampling point TC0003 Coliform (TCR)
Absence , sample collected Jun 22, 2026 15:15, sampling point TC0003 E. Coli
Collected
May 19, 2026 13:30
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22039
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 19, 2026 13:30, sampling point TC0003 Coliform (TCR)
Absence , sample collected May 19, 2026 13:30, sampling point TC0003 E. Coli
Collected
May 19, 2026 13:45
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22040
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 19, 2026 13:45, sampling point TC0004 Coliform (TCR)
Absence , sample collected May 19, 2026 13:45, sampling point TC0004 E. Coli
Collected
Apr 15, 2026 13:30
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22042
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 15, 2026 13:30, sampling point TC0006 Coliform (TCR)
Absence , sample collected Apr 15, 2026 13:30, sampling point TC0006 E. Coli
Collected
Apr 15, 2026 13:50
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22041
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 15, 2026 13:50, sampling point TC0008 Coliform (TCR)
Absence , sample collected Apr 15, 2026 13:50, sampling point TC0008 E. Coli
Collected
Mar 24, 2026 11:40
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22043
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 24, 2026 11:40, sampling point TC0001 Coliform (TCR)
Absence , sample collected Mar 24, 2026 11:40, sampling point TC0001 E. Coli
Collected
Mar 24, 2026 11:15
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22044
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 24, 2026 11:15, sampling point TC0003 Coliform (TCR)
Absence , sample collected Mar 24, 2026 11:15, sampling point TC0003 E. Coli
Collected
Feb 24, 2026 14:00
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22046
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 24, 2026 14:00, sampling point TC0001 Coliform (TCR)
Absence , sample collected Feb 24, 2026 14:00, sampling point TC0001 E. Coli
Collected
Feb 24, 2026 13:45
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22045
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 24, 2026 13:45, sampling point TC0008 Coliform (TCR)
Absence , sample collected Feb 24, 2026 13:45, sampling point TC0008 E. Coli
Collected
Jan 14, 2026 13:55
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22035
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 14, 2026 13:55, sampling point TC0004 Coliform (TCR)
Absence , sample collected Jan 14, 2026 13:55, sampling point TC0004 E. Coli
Collected
Jan 14, 2026 14:10
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22036
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 14, 2026 14:10, sampling point TC0007 Coliform (TCR)
Absence , sample collected Jan 14, 2026 14:10, sampling point TC0007 E. Coli
Collected
Dec 10, 2025 13:45
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250422-22033
Laboratory
MSDH Lab
Monitoring period
Dec 1, 2025 – Dec 31, 2025
Absence , sample collected Dec 10, 2025 13:45, sampling point TC0003 Coliform (TCR)
Absence , sample collected Dec 10, 2025 13:45, sampling point TC0003 E. Coli