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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 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 91–105 of 352 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for City of Horn Lake, 91 to 105 of 352 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Feb 17, 2026 10:05
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-250922-48253
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 17, 2026 10:05, sampling point TC0004 Coliform (TCR)
Absence , sample collected Feb 17, 2026 10:05, sampling point TC0004 E. Coli
Collected
Feb 17, 2026 10:15
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
BACT-250922-48252
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 17, 2026 10:15, sampling point TC0007 Coliform (TCR)
Absence , sample collected Feb 17, 2026 10:15, sampling point TC0007 E. Coli
Collected
Feb 17, 2026 11:20
Sampling point
TC0011 Outside Faucet
Sample type
Routine
Lab sample
BACT-250922-48254
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 17, 2026 11:20, sampling point TC0011 Coliform (TCR)
Absence , sample collected Feb 17, 2026 11:20, sampling point TC0011 E. Coli
Collected
Feb 10, 2026 10:25
Sampling point
TC0015 Outside Faucet
Sample type
Routine
Lab sample
BACT-250922-48248
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 10, 2026 10:25, sampling point TC0015 Coliform (TCR)
Absence , sample collected Feb 10, 2026 10:25, sampling point TC0015 E. Coli
Collected
Feb 10, 2026 10:50
Sampling point
TC0017 Outside Faucet
Sample type
Routine
Lab sample
BACT-250922-48246
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 10, 2026 10:50, sampling point TC0017 Coliform (TCR)
Absence , sample collected Feb 10, 2026 10:50, sampling point TC0017 E. Coli
Collected
Feb 10, 2026 10:40
Sampling point
TC0019 Outside Faucet
Sample type
Routine
Lab sample
BACT-250922-48250
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 10, 2026 10:40, sampling point TC0019 Coliform (TCR)
Absence , sample collected Feb 10, 2026 10:40, sampling point TC0019 E. Coli
Collected
Feb 10, 2026 11:15
Sampling point
TC0021 Outside Faucet
Sample type
Routine
Lab sample
BACT-250922-48249
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 10, 2026 11:15, sampling point TC0021 Coliform (TCR)
Absence , sample collected Feb 10, 2026 11:15, sampling point TC0021 E. Coli
Collected
Feb 10, 2026 11:25
Sampling point
TC0022 Outside Faucet
Sample type
Routine
Lab sample
BACT-250922-48247
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 10, 2026 11:25, sampling point TC0022 Coliform (TCR)
Absence , sample collected Feb 10, 2026 11:25, sampling point TC0022 E. Coli
Collected
Feb 10, 2026 11:05
Sampling point
TC0030 No Description
Sample type
Routine
Lab sample
BACT-250922-48251
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 10, 2026 11:05, sampling point TC0030 Coliform (TCR)
Absence , sample collected Feb 10, 2026 11:05, sampling point TC0030 E. Coli
Collected
Feb 9, 2026 11:30
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-250922-48241
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 9, 2026 11:30, sampling point TC0001 Coliform (TCR)
Absence , sample collected Feb 9, 2026 11:30, sampling point TC0001 E. Coli
Collected
Feb 9, 2026 10:50
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-250922-48245
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 9, 2026 10:50, sampling point TC0002 Coliform (TCR)
Absence , sample collected Feb 9, 2026 10:50, sampling point TC0002 E. Coli
Collected
Feb 9, 2026 10:15
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250922-48243
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 9, 2026 10:15, sampling point TC0003 Coliform (TCR)
Absence , sample collected Feb 9, 2026 10:15, sampling point TC0003 E. Coli
Collected
Feb 9, 2026 10:30
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-250922-48240
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 9, 2026 10:30, sampling point TC0005 Coliform (TCR)
Absence , sample collected Feb 9, 2026 10:30, sampling point TC0005 E. Coli
Collected
Feb 9, 2026 08:40
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
BACT-250922-48242
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 9, 2026 08:40, sampling point TC0010 Coliform (TCR)
Absence , sample collected Feb 9, 2026 08:40, sampling point TC0010 E. Coli
Collected
Feb 9, 2026 08:25
Sampling point
TC0023 Outside Faucet
Sample type
Routine
Lab sample
BACT-250922-48244
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 9, 2026 08:25, sampling point TC0023 Coliform (TCR)
Absence , sample collected Feb 9, 2026 08:25, sampling point TC0023 E. Coli