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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 9,725 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 7,494 samples on record.

Every sample on record, October 7, 2003 to September 8, 2026. No date range is applied.

This system’s violations

The most recent samples

No date range is applied: this list draws on every sample on record. Show the last two years only.

The list below shows 2,551–2,565 of 7,494 samples on record, newest first.

Routine (15).

Coliform and microbial sample results for Columbus Light & Water, 2,551 to 2,565 of 7,494 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
May 1, 2018 12:37
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
997403
Laboratory
MSDH Lab
Monitoring period
May 1, 2018 – May 31, 2018
Absence , sample collected May 1, 2018 12:37, sampling point DS000 Coliform (TCR)
Collected
May 1, 2018 13:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
997404
Laboratory
MSDH Lab
Monitoring period
May 1, 2018 – May 31, 2018
Absence , sample collected May 1, 2018 13:20, sampling point DS000 Coliform (TCR)
Collected
May 1, 2018 14:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
997405
Laboratory
MSDH Lab
Monitoring period
May 1, 2018 – May 31, 2018
Absence , sample collected May 1, 2018 14:00, sampling point DS000 Coliform (TCR)
Collected
Apr 4, 2018 09:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
993530
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2018 – Apr 30, 2018
Absence , sample collected Apr 4, 2018 09:30, sampling point DS000 Coliform (TCR)
Collected
Apr 4, 2018 09:05
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
993531
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2018 – Apr 30, 2018
Absence , sample collected Apr 4, 2018 09:05, sampling point DS000 Coliform (TCR)
Collected
Apr 4, 2018 07:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
993532
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2018 – Apr 30, 2018
Absence , sample collected Apr 4, 2018 07:45, sampling point DS000 Coliform (TCR)
Collected
Apr 4, 2018 08:40
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
993533
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2018 – Apr 30, 2018
Absence , sample collected Apr 4, 2018 08:40, sampling point DS000 Coliform (TCR)
Collected
Apr 4, 2018 09:50
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
993534
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2018 – Apr 30, 2018
Absence , sample collected Apr 4, 2018 09:50, sampling point DS000 Coliform (TCR)
Collected
Apr 4, 2018 10:29
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
993535
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2018 – Apr 30, 2018
Absence , sample collected Apr 4, 2018 10:29, sampling point DS000 Coliform (TCR)
Collected
Apr 4, 2018 12:09
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
993536
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2018 – Apr 30, 2018
Absence , sample collected Apr 4, 2018 12:09, sampling point DS000 Coliform (TCR)
Collected
Apr 4, 2018 08:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
993537
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2018 – Apr 30, 2018
Absence , sample collected Apr 4, 2018 08:15, sampling point DS000 Coliform (TCR)
Collected
Apr 3, 2018 10:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
993062
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2018 – Apr 30, 2018
Absence , sample collected Apr 3, 2018 10:00, sampling point DS000 Coliform (TCR)
Collected
Apr 3, 2018 08:42
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
993063
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2018 – Apr 30, 2018
Absence , sample collected Apr 3, 2018 08:42, sampling point DS000 Coliform (TCR)
Collected
Apr 3, 2018 09:02
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
993064
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2018 – Apr 30, 2018
Absence , sample collected Apr 3, 2018 09:02, sampling point DS000 Coliform (TCR)
Collected
Apr 3, 2018 13:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
993065
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2018 – Apr 30, 2018
Absence , sample collected Apr 3, 2018 13:30, sampling point DS000 Coliform (TCR)