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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 181–195 of 586 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for Columbus Light & Water, 181 to 195 of 586 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Jan 13, 2026 08:39
Sampling point
TC0040 Outside Faucet
Sample type
Routine
Lab sample
BACT-240812-35827
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 13, 2026 08:39, sampling point TC0040 Coliform (TCR)
Absence , sample collected Jan 13, 2026 08:39, sampling point TC0040 E. Coli
Collected
Jan 5, 2026 07:44
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-27020
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 07:44, sampling point TC0001 Coliform (TCR)
Absence , sample collected Jan 5, 2026 07:44, sampling point TC0001 E. Coli
Collected
Jan 5, 2026 07:27
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-27019
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 07:27, sampling point TC0002 Coliform (TCR)
Absence , sample collected Jan 5, 2026 07:27, sampling point TC0002 E. Coli
Collected
Jan 5, 2026 08:54
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-27021
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 08:54, sampling point TC0003 Coliform (TCR)
Absence , sample collected Jan 5, 2026 08:54, sampling point TC0003 E. Coli
Collected
Jan 5, 2026 09:16
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-27022
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 09:16, sampling point TC0004 Coliform (TCR)
Absence , sample collected Jan 5, 2026 09:16, sampling point TC0004 E. Coli
Collected
Jan 5, 2026 09:44
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-27023
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 09:44, sampling point TC0005 Coliform (TCR)
Absence , sample collected Jan 5, 2026 09:44, sampling point TC0005 E. Coli
Collected
Jan 5, 2026 10:01
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-27024
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 10:01, sampling point TC0006 Coliform (TCR)
Absence , sample collected Jan 5, 2026 10:01, sampling point TC0006 E. Coli
Collected
Jan 5, 2026 11:00
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-27025
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 11:00, sampling point TC0008 Coliform (TCR)
Absence , sample collected Jan 5, 2026 11:00, sampling point TC0008 E. Coli
Collected
Jan 5, 2026 11:20
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-27026
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 11:20, sampling point TC0009 Coliform (TCR)
Absence , sample collected Jan 5, 2026 11:20, sampling point TC0009 E. Coli
Collected
Jan 5, 2026 11:38
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
BACT-250519-27027
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 11:38, sampling point TC0010 Coliform (TCR)
Absence , sample collected Jan 5, 2026 11:38, sampling point TC0010 E. Coli
Collected
Jan 5, 2026 11:56
Sampling point
TC0011 Outside Faucet
Sample type
Routine
Lab sample
BACT-240812-35824
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 11:56, sampling point TC0011 Coliform (TCR)
Absence , sample collected Jan 5, 2026 11:56, sampling point TC0011 E. Coli
Collected
Jan 5, 2026 12:51
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
BACT-240812-35836
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 12:51, sampling point TC0012 Coliform (TCR)
Absence , sample collected Jan 5, 2026 12:51, sampling point TC0012 E. Coli
Collected
Jan 5, 2026 12:32
Sampling point
TC0013 Outside Faucet
Sample type
Routine
Lab sample
BACT-240812-35825
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 12:32, sampling point TC0013 Coliform (TCR)
Absence , sample collected Jan 5, 2026 12:32, sampling point TC0013 E. Coli
Collected
Jan 5, 2026 13:14
Sampling point
TC0014 Outside Faucet
Sample type
Routine
Lab sample
BACT-240812-35835
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 13:14, sampling point TC0014 Coliform (TCR)
Absence , sample collected Jan 5, 2026 13:14, sampling point TC0014 E. Coli
Collected
Jan 5, 2026 13:58
Sampling point
TC0015 Outside Faucet
Sample type
Routine
Lab sample
BACT-240812-35837
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 13:58, sampling point TC0015 Coliform (TCR)
Absence , sample collected Jan 5, 2026 13:58, sampling point TC0015 E. Coli