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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

MS0440003 , Columbus Light & Water

7 of 9,675 results on record were positive for coliform or another organism the agency tests for. The most recent was December 1, 2025.

They fall across 7 of the 7,469 samples on record.

Every sample on record, October 7, 2003 to August 11, 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 28, 2024 and September 28, 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 391–405 of 586 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for Columbus Light & Water, 391 to 405 of 586 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
May 6, 2025 10:22
Sampling point
TC0020 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-096
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 6, 2025 10:22, sampling point TC0020 Coliform (TCR)
Absence , sample collected May 6, 2025 10:22, sampling point TC0020 E. Coli
Collected
May 6, 2025 11:41
Sampling point
TC0021 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-098
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 6, 2025 11:41, sampling point TC0021 Coliform (TCR)
Absence , sample collected May 6, 2025 11:41, sampling point TC0021 E. Coli
Collected
May 6, 2025 11:11
Sampling point
TC0023 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-097
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 6, 2025 11:11, sampling point TC0023 Coliform (TCR)
Absence , sample collected May 6, 2025 11:11, sampling point TC0023 E. Coli
Collected
May 6, 2025 13:40
Sampling point
TC0026 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-003
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 6, 2025 13:40, sampling point TC0026 Coliform (TCR)
Absence , sample collected May 6, 2025 13:40, sampling point TC0026 E. Coli
Collected
May 6, 2025 13:15
Sampling point
TC0027 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-002
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 6, 2025 13:15, sampling point TC0027 Coliform (TCR)
Absence , sample collected May 6, 2025 13:15, sampling point TC0027 E. Coli
Collected
May 6, 2025 12:54
Sampling point
TC0029 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-001
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 6, 2025 12:54, sampling point TC0029 Coliform (TCR)
Absence , sample collected May 6, 2025 12:54, sampling point TC0029 E. Coli
Collected
May 6, 2025 14:08
Sampling point
TC0035 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-004
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 6, 2025 14:08, sampling point TC0035 Coliform (TCR)
Absence , sample collected May 6, 2025 14:08, sampling point TC0035 E. Coli
Collected
May 6, 2025 12:21
Sampling point
TC0039 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-100
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 6, 2025 12:21, sampling point TC0039 Coliform (TCR)
Absence , sample collected May 6, 2025 12:21, sampling point TC0039 E. Coli
Collected
May 6, 2025 12:00
Sampling point
TC0040 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-099
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 6, 2025 12:00, sampling point TC0040 Coliform (TCR)
Absence , sample collected May 6, 2025 12:00, sampling point TC0040 E. Coli
Collected
May 5, 2025 09:47
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-050
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 09:47, sampling point TC0001 Coliform (TCR)
Absence , sample collected May 5, 2025 09:47, sampling point TC0001 E. Coli
Collected
May 5, 2025 09:26
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-049
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 09:26, sampling point TC0002 Coliform (TCR)
Absence , sample collected May 5, 2025 09:26, sampling point TC0002 E. Coli
Collected
May 5, 2025 10:03
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-081
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 10:03, sampling point TC0003 Coliform (TCR)
Absence , sample collected May 5, 2025 10:03, sampling point TC0003 E. Coli
Collected
May 5, 2025 10:26
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-082
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 10:26, sampling point TC0004 Coliform (TCR)
Absence , sample collected May 5, 2025 10:26, sampling point TC0004 E. Coli
Collected
May 5, 2025 10:45
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-083
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 10:45, sampling point TC0005 Coliform (TCR)
Absence , sample collected May 5, 2025 10:45, sampling point TC0005 E. Coli
Collected
May 5, 2025 11:14
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-084
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 11:14, sampling point TC0006 Coliform (TCR)
Absence , sample collected May 5, 2025 11:14, sampling point TC0006 E. Coli