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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 376–390 of 586 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for Columbus Light & Water, 376 to 390 of 586 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Jun 2, 2025 10:36
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-012
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 10:36, sampling point TC0008 Coliform (TCR)
Absence , sample collected Jun 2, 2025 10:36, sampling point TC0008 E. Coli
Collected
Jun 2, 2025 10:48
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-013
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 10:48, sampling point TC0009 Coliform (TCR)
Absence , sample collected Jun 2, 2025 10:48, sampling point TC0009 E. Coli
Collected
Jun 2, 2025 11:15
Sampling point
TC0011 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-014
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 11:15, sampling point TC0011 Coliform (TCR)
Absence , sample collected Jun 2, 2025 11:15, sampling point TC0011 E. Coli
Collected
Jun 2, 2025 11:43
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-015
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 11:43, sampling point TC0012 Coliform (TCR)
Absence , sample collected Jun 2, 2025 11:43, sampling point TC0012 E. Coli
Collected
Jun 2, 2025 12:17
Sampling point
TC0014 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-016
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 12:17, sampling point TC0014 Coliform (TCR)
Absence , sample collected Jun 2, 2025 12:17, sampling point TC0014 E. Coli
Collected
Jun 2, 2025 12:51
Sampling point
TC0015 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-017
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 12:51, sampling point TC0015 Coliform (TCR)
Absence , sample collected Jun 2, 2025 12:51, sampling point TC0015 E. Coli
Collected
Jun 2, 2025 13:12
Sampling point
TC0016 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-018
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 13:12, sampling point TC0016 Coliform (TCR)
Absence , sample collected Jun 2, 2025 13:12, sampling point TC0016 E. Coli
Collected
Jun 2, 2025 13:31
Sampling point
TC0017 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-019
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 13:31, sampling point TC0017 Coliform (TCR)
Absence , sample collected Jun 2, 2025 13:31, sampling point TC0017 E. Coli
Collected
Jun 2, 2025 13:50
Sampling point
TC0018 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-020
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 13:50, sampling point TC0018 Coliform (TCR)
Absence , sample collected Jun 2, 2025 13:50, sampling point TC0018 E. Coli
Collected
Jun 2, 2025 14:08
Sampling point
TC0019 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-021
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 14:08, sampling point TC0019 Coliform (TCR)
Absence , sample collected Jun 2, 2025 14:08, sampling point TC0019 E. Coli
Collected
Jun 2, 2025 14:29
Sampling point
TC0020 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-022
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 14:29, sampling point TC0020 Coliform (TCR)
Absence , sample collected Jun 2, 2025 14:29, sampling point TC0020 E. Coli
Collected
May 6, 2025 08:52
Sampling point
TC0015 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-092
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 6, 2025 08:52, sampling point TC0015 Coliform (TCR)
Absence , sample collected May 6, 2025 08:52, sampling point TC0015 E. Coli
Collected
May 6, 2025 09:26
Sampling point
TC0016 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-093
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 6, 2025 09:26, sampling point TC0016 Coliform (TCR)
Absence , sample collected May 6, 2025 09:26, sampling point TC0016 E. Coli
Collected
May 6, 2025 09:42
Sampling point
TC0017 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-094
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 6, 2025 09:42, sampling point TC0017 Coliform (TCR)
Absence , sample collected May 6, 2025 09:42, sampling point TC0017 E. Coli
Collected
May 6, 2025 10:06
Sampling point
TC0019 Outside Faucet
Sample type
Routine
Lab sample
BACT-240103-095
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 6, 2025 10:06, sampling point TC0019 Coliform (TCR)
Absence , sample collected May 6, 2025 10:06, sampling point TC0019 E. Coli