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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

MS0170022 , City of Horn Lake

14 of 4,989 results on record were positive for coliform or another organism the agency tests for. The most recent was September 16, 2025.

They fall across 13 of the 3,688 samples on record.

Every sample on record, October 7, 2003 to August 10, 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 27, 2024 and September 27, 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 256–270 of 352 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for City of Horn Lake, 256 to 270 of 352 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Apr 1, 2025 11:00
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-240206-8709
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025 11:00, sampling point TC0001 Coliform (TCR)
Absence , sample collected Apr 1, 2025 11:00, sampling point TC0001 E. Coli
Collected
Apr 1, 2025 10:20
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-240206-8708
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025 10:20, sampling point TC0002 Coliform (TCR)
Absence , sample collected Apr 1, 2025 10:20, sampling point TC0002 E. Coli
Collected
Apr 1, 2025 09:45
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-240206-8706
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025 09:45, sampling point TC0003 Coliform (TCR)
Absence , sample collected Apr 1, 2025 09:45, sampling point TC0003 E. Coli
Collected
Apr 1, 2025 10:05
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-240206-8613
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025 10:05, sampling point TC0005 Coliform (TCR)
Absence , sample collected Apr 1, 2025 10:05, sampling point TC0005 E. Coli
Collected
Apr 1, 2025 11:55
Sampling point
TC0017 Outside Faucet
Sample type
Routine
Lab sample
BACT-240206-8711
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025 11:55, sampling point TC0017 Coliform (TCR)
Absence , sample collected Apr 1, 2025 11:55, sampling point TC0017 E. Coli
Collected
Apr 1, 2025 11:40
Sampling point
TC0019 Outside Faucet
Sample type
Routine
Lab sample
BACT-240206-8710
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025 11:40, sampling point TC0019 Coliform (TCR)
Absence , sample collected Apr 1, 2025 11:40, sampling point TC0019 E. Coli
Collected
Apr 1, 2025 12:10
Sampling point
TC0023 Outside Faucet
Sample type
Routine
Lab sample
BACT-240206-8612
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025 12:10, sampling point TC0023 Coliform (TCR)
Absence , sample collected Apr 1, 2025 12:10, sampling point TC0023 E. Coli
Collected
Mar 12, 2025 09:35
Sampling point
TC0011 Outside Faucet
Sample type
Routine
Lab sample
BACT-240206-8704
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2025 – Mar 31, 2025
Absence , sample collected Mar 12, 2025 09:35, sampling point TC0011 Coliform (TCR)
Absence , sample collected Mar 12, 2025 09:35, sampling point TC0011 E. Coli
Collected
Mar 12, 2025 08:40
Sampling point
TC0015 Outside Faucet
Sample type
Routine
Lab sample
BACT-240206-8700
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2025 – Mar 31, 2025
Absence , sample collected Mar 12, 2025 08:40, sampling point TC0015 Coliform (TCR)
Absence , sample collected Mar 12, 2025 08:40, sampling point TC0015 E. Coli
Collected
Mar 12, 2025 09:25
Sampling point
TC0017 Outside Faucet
Sample type
Routine
Lab sample
BACT-240206-8703
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2025 – Mar 31, 2025
Absence , sample collected Mar 12, 2025 09:25, sampling point TC0017 Coliform (TCR)
Absence , sample collected Mar 12, 2025 09:25, sampling point TC0017 E. Coli
Collected
Mar 12, 2025 09:10
Sampling point
TC0019 Outside Faucet
Sample type
Routine
Lab sample
BACT-240206-8702
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2025 – Mar 31, 2025
Absence , sample collected Mar 12, 2025 09:10, sampling point TC0019 Coliform (TCR)
Absence , sample collected Mar 12, 2025 09:10, sampling point TC0019 E. Coli
Collected
Mar 12, 2025 08:50
Sampling point
TC0023 Outside Faucet
Sample type
Routine
Lab sample
BACT-240206-8701
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2025 – Mar 31, 2025
Absence , sample collected Mar 12, 2025 08:50, sampling point TC0023 Coliform (TCR)
Absence , sample collected Mar 12, 2025 08:50, sampling point TC0023 E. Coli
Collected
Mar 12, 2025 08:25
Sampling point
TC0030 No Description
Sample type
Routine
Lab sample
BACT-240206-8699
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2025 – Mar 31, 2025
Absence , sample collected Mar 12, 2025 08:25, sampling point TC0030 Coliform (TCR)
Absence , sample collected Mar 12, 2025 08:25, sampling point TC0030 E. Coli
Collected
Mar 10, 2025 11:05
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-240206-8698
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2025 – Mar 31, 2025
Absence , sample collected Mar 10, 2025 11:05, sampling point TC0004 Coliform (TCR)
Absence , sample collected Mar 10, 2025 11:05, sampling point TC0004 E. Coli
Collected
Mar 10, 2025 10:40
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-240206-8696
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2025 – Mar 31, 2025
Absence , sample collected Mar 10, 2025 10:40, sampling point TC0005 Coliform (TCR)
Absence , sample collected Mar 10, 2025 10:40, sampling point TC0005 E. Coli