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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 76–90 of 149 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for City of Columbia, 76 to 90 of 149 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Aug 26, 2025 15:12
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10212
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 26, 2025 15:12, sampling point TC0006 Coliform (TCR)
Absence , sample collected Aug 26, 2025 15:12, sampling point TC0006 E. Coli
Collected
Aug 26, 2025 16:02
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10214
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 26, 2025 16:02, sampling point TC0009 Coliform (TCR)
Absence , sample collected Aug 26, 2025 16:02, sampling point TC0009 E. Coli
Collected
Aug 26, 2025 15:29
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10213
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 26, 2025 15:29, sampling point TC0012 Coliform (TCR)
Absence , sample collected Aug 26, 2025 15:29, sampling point TC0012 E. Coli
Collected
Jul 29, 2025 08:50
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10133
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 29, 2025 08:50, sampling point TC0002 Coliform (TCR)
Absence , sample collected Jul 29, 2025 08:50, sampling point TC0002 E. Coli
Collected
Jul 29, 2025 09:10
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10134
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 29, 2025 09:10, sampling point TC0003 Coliform (TCR)
Absence , sample collected Jul 29, 2025 09:10, sampling point TC0003 E. Coli
Collected
Jul 29, 2025 09:24
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10223
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 29, 2025 09:24, sampling point TC0004 Coliform (TCR)
Absence , sample collected Jul 29, 2025 09:24, sampling point TC0004 E. Coli
Collected
Jul 29, 2025 10:02
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10224
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 29, 2025 10:02, sampling point TC0006 Coliform (TCR)
Absence , sample collected Jul 29, 2025 10:02, sampling point TC0006 E. Coli
Collected
Jul 29, 2025 10:45
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10135
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 29, 2025 10:45, sampling point TC0009 Coliform (TCR)
Absence , sample collected Jul 29, 2025 10:45, sampling point TC0009 E. Coli
Collected
Jul 29, 2025 10:21
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10225
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 29, 2025 10:21, sampling point TC0012 Coliform (TCR)
Absence , sample collected Jul 29, 2025 10:21, sampling point TC0012 E. Coli
Collected
Jul 28, 2025 13:00
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10222
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 28, 2025 13:00, sampling point TC0008 Coliform (TCR)
Absence , sample collected Jul 28, 2025 13:00, sampling point TC0008 E. Coli
Collected
Jun 25, 2025 14:15
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10137
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 25, 2025 14:15, sampling point TC0002 Coliform (TCR)
Absence , sample collected Jun 25, 2025 14:15, sampling point TC0002 E. Coli
Collected
Jun 25, 2025 14:31
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10138
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 25, 2025 14:31, sampling point TC0003 Coliform (TCR)
Absence , sample collected Jun 25, 2025 14:31, sampling point TC0003 E. Coli
Collected
Jun 25, 2025 14:52
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10139
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 25, 2025 14:52, sampling point TC0004 Coliform (TCR)
Absence , sample collected Jun 25, 2025 14:52, sampling point TC0004 E. Coli
Collected
Jun 25, 2025 15:19
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10140
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 25, 2025 15:19, sampling point TC0006 Coliform (TCR)
Absence , sample collected Jun 25, 2025 15:19, sampling point TC0006 E. Coli
Collected
Jun 25, 2025 16:02
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10142
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 25, 2025 16:02, sampling point TC0009 Coliform (TCR)
Absence , sample collected Jun 25, 2025 16:02, sampling point TC0009 E. Coli