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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

MS0460003 , City of Columbia

11 of 2,690 results on record were positive for coliform or another organism the agency tests for. The most recent was June 29, 2020.

They fall across 11 of the 2,068 samples on record.

Every sample on record, October 16, 2003 to July 27, 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 26, 2024 and September 26, 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 1–15 of 149 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for City of Columbia, 1 to 15 of 149 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Jul 27, 2026 06:10
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68818
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 27, 2026 06:10, sampling point TC0002 Coliform (TCR)
Absence , sample collected Jul 27, 2026 06:10, sampling point TC0002 E. Coli
Collected
Jul 27, 2026 06:31
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68819
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 27, 2026 06:31, sampling point TC0003 Coliform (TCR)
Absence , sample collected Jul 27, 2026 06:31, sampling point TC0003 E. Coli
Collected
Jul 27, 2026 06:49
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68820
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 27, 2026 06:49, sampling point TC0004 Coliform (TCR)
Absence , sample collected Jul 27, 2026 06:49, sampling point TC0004 E. Coli
Collected
Jul 27, 2026 07:13
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68821
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 27, 2026 07:13, sampling point TC0006 Coliform (TCR)
Absence , sample collected Jul 27, 2026 07:13, sampling point TC0006 E. Coli
Collected
Jul 27, 2026 07:35
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68823
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 27, 2026 07:35, sampling point TC0009 Coliform (TCR)
Absence , sample collected Jul 27, 2026 07:35, sampling point TC0009 E. Coli
Collected
Jul 27, 2026 05:41
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68822
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 27, 2026 05:41, sampling point TC0012 Coliform (TCR)
Absence , sample collected Jul 27, 2026 05:41, sampling point TC0012 E. Coli
Collected
Jul 26, 2026 13:50
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68807
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 26, 2026 13:50, sampling point TC0008 Coliform (TCR)
Absence , sample collected Jul 26, 2026 13:50, sampling point TC0008 E. Coli
Collected
Jun 30, 2026 10:50
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68815
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 30, 2026 10:50, sampling point TC0008 Coliform (TCR)
Absence , sample collected Jun 30, 2026 10:50, sampling point TC0008 E. Coli
Collected
Jun 17, 2026 14:40
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68809
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 17, 2026 14:40, sampling point TC0002 Coliform (TCR)
Absence , sample collected Jun 17, 2026 14:40, sampling point TC0002 E. Coli
Collected
Jun 17, 2026 14:58
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68810
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 17, 2026 14:58, sampling point TC0003 Coliform (TCR)
Absence , sample collected Jun 17, 2026 14:58, sampling point TC0003 E. Coli
Collected
Jun 17, 2026 15:16
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68811
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 17, 2026 15:16, sampling point TC0004 Coliform (TCR)
Absence , sample collected Jun 17, 2026 15:16, sampling point TC0004 E. Coli
Collected
Jun 17, 2026 15:35
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68812
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 17, 2026 15:35, sampling point TC0006 Coliform (TCR)
Absence , sample collected Jun 17, 2026 15:35, sampling point TC0006 E. Coli
Collected
Jun 17, 2026 16:20
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68814
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 17, 2026 16:20, sampling point TC0009 Coliform (TCR)
Absence , sample collected Jun 17, 2026 16:20, sampling point TC0009 E. Coli
Collected
Jun 17, 2026 15:58
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68813
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 17, 2026 15:58, sampling point TC0012 Coliform (TCR)
Absence , sample collected Jun 17, 2026 15:58, sampling point TC0012 E. Coli
Collected
May 27, 2026 09:00
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-68808
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 27, 2026 09:00, sampling point TC0008 Coliform (TCR)
Absence , sample collected May 27, 2026 09:00, sampling point TC0008 E. Coli