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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 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 106–120 of 586 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for Columbus Light & Water, 106 to 120 of 586 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Apr 13, 2026 12:05
Sampling point
TC0020 Outside Faucet
Sample type
Routine
Lab sample
BACT-240812-35872
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 13, 2026 12:05, sampling point TC0020 Coliform (TCR)
Absence , sample collected Apr 13, 2026 12:05, sampling point TC0020 E. Coli
Collected
Apr 13, 2026 12:44
Sampling point
TC0021 Outside Faucet
Sample type
Routine
Lab sample
BACT-240812-35774
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 13, 2026 12:44, sampling point TC0021 Coliform (TCR)
Absence , sample collected Apr 13, 2026 12:44, sampling point TC0021 E. Coli
Collected
Apr 13, 2026 12:24
Sampling point
TC0023 Outside Faucet
Sample type
Routine
Lab sample
BACT-240812-35873
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 13, 2026 12:24, sampling point TC0023 Coliform (TCR)
Absence , sample collected Apr 13, 2026 12:24, sampling point TC0023 E. Coli
Collected
Apr 13, 2026 13:39
Sampling point
TC0029 Outside Faucet
Sample type
Routine
Lab sample
BACT-240812-35777
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 13, 2026 13:39, sampling point TC0029 Coliform (TCR)
Absence , sample collected Apr 13, 2026 13:39, sampling point TC0029 E. Coli
Collected
Apr 13, 2026 13:14
Sampling point
TC0039 Outside Faucet
Sample type
Routine
Lab sample
BACT-240812-35776
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 13, 2026 13:14, sampling point TC0039 Coliform (TCR)
Absence , sample collected Apr 13, 2026 13:14, sampling point TC0039 E. Coli
Collected
Apr 13, 2026 12:59
Sampling point
TC0040 Outside Faucet
Sample type
Routine
Lab sample
BACT-240812-35775
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 13, 2026 12:59, sampling point TC0040 Coliform (TCR)
Absence , sample collected Apr 13, 2026 12:59, sampling point TC0040 E. Coli
Collected
Apr 6, 2026 08:02
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-26988
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 6, 2026 08:02, sampling point TC0001 Coliform (TCR)
Absence , sample collected Apr 6, 2026 08:02, sampling point TC0001 E. Coli
Collected
Apr 6, 2026 07:38
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-26986
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 6, 2026 07:38, sampling point TC0002 Coliform (TCR)
Absence , sample collected Apr 6, 2026 07:38, sampling point TC0002 E. Coli
Collected
Apr 6, 2026 08:21
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-26989
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 6, 2026 08:21, sampling point TC0003 Coliform (TCR)
Absence , sample collected Apr 6, 2026 08:21, sampling point TC0003 E. Coli
Collected
Apr 6, 2026 08:44
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-26987
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 6, 2026 08:44, sampling point TC0004 Coliform (TCR)
Absence , sample collected Apr 6, 2026 08:44, sampling point TC0004 E. Coli
Collected
Apr 6, 2026 09:03
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-26990
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 6, 2026 09:03, sampling point TC0005 Coliform (TCR)
Absence , sample collected Apr 6, 2026 09:03, sampling point TC0005 E. Coli
Collected
Apr 6, 2026 09:22
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-26991
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 6, 2026 09:22, sampling point TC0006 Coliform (TCR)
Absence , sample collected Apr 6, 2026 09:22, sampling point TC0006 E. Coli
Collected
Apr 6, 2026 09:54
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-26992
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 6, 2026 09:54, sampling point TC0007 Coliform (TCR)
Absence , sample collected Apr 6, 2026 09:54, sampling point TC0007 E. Coli
Collected
Apr 6, 2026 10:15
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-26993
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 6, 2026 10:15, sampling point TC0008 Coliform (TCR)
Absence , sample collected Apr 6, 2026 10:15, sampling point TC0008 E. Coli
Collected
Apr 6, 2026 11:02
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-26994
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 6, 2026 11:02, sampling point TC0009 Coliform (TCR)
Absence , sample collected Apr 6, 2026 11:02, sampling point TC0009 E. Coli