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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 61–75 of 149 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for City of Columbia, 61 to 75 of 149 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Oct 29, 2025 15:01
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10158
Laboratory
MSDH Lab
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 29, 2025 15:01, sampling point TC0006 Coliform (TCR)
Absence , sample collected Oct 29, 2025 15:01, sampling point TC0006 E. Coli
Collected
Oct 29, 2025 15:18
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10157
Laboratory
MSDH Lab
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 29, 2025 15:18, sampling point TC0009 Coliform (TCR)
Absence , sample collected Oct 29, 2025 15:18, sampling point TC0009 E. Coli
Collected
Oct 29, 2025 15:44
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10156
Laboratory
MSDH Lab
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 29, 2025 15:44, sampling point TC0012 Coliform (TCR)
Absence , sample collected Oct 29, 2025 15:44, sampling point TC0012 E. Coli
Collected
Oct 28, 2025 16:00
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10152
Laboratory
MSDH Lab
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 28, 2025 16:00, sampling point TC0008 Coliform (TCR)
Absence , sample collected Oct 28, 2025 16:00, sampling point TC0008 E. Coli
Collected
Sep 30, 2025 13:25
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10151
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 30, 2025 13:25, sampling point TC0008 Coliform (TCR)
Absence , sample collected Sep 30, 2025 13:25, sampling point TC0008 E. Coli
Collected
Sep 29, 2025 13:02
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10215
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 29, 2025 13:02, sampling point TC0002 Coliform (TCR)
Absence , sample collected Sep 29, 2025 13:02, sampling point TC0002 E. Coli
Collected
Sep 29, 2025 13:27
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10145
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 29, 2025 13:27, sampling point TC0003 Coliform (TCR)
Absence , sample collected Sep 29, 2025 13:27, sampling point TC0003 E. Coli
Collected
Sep 29, 2025 13:40
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10146
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 29, 2025 13:40, sampling point TC0004 Coliform (TCR)
Absence , sample collected Sep 29, 2025 13:40, sampling point TC0004 E. Coli
Collected
Sep 29, 2025 14:08
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10147
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 29, 2025 14:08, sampling point TC0006 Coliform (TCR)
Absence , sample collected Sep 29, 2025 14:08, sampling point TC0006 E. Coli
Collected
Sep 29, 2025 14:37
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10149
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 29, 2025 14:37, sampling point TC0009 Coliform (TCR)
Absence , sample collected Sep 29, 2025 14:37, sampling point TC0009 E. Coli
Collected
Sep 29, 2025 14:19
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10148
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 29, 2025 14:19, sampling point TC0012 Coliform (TCR)
Absence , sample collected Sep 29, 2025 14:19, sampling point TC0012 E. Coli
Collected
Aug 27, 2025 11:15
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10143
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 27, 2025 11:15, sampling point TC0008 Coliform (TCR)
Absence , sample collected Aug 27, 2025 11:15, sampling point TC0008 E. Coli
Collected
Aug 26, 2025 14:40
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10210
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 26, 2025 14:40, sampling point TC0002 Coliform (TCR)
Absence , sample collected Aug 26, 2025 14:40, sampling point TC0002 E. Coli
Collected
Aug 26, 2025 14:15
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10211
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 26, 2025 14:15, sampling point TC0003 Coliform (TCR)
Absence , sample collected Aug 26, 2025 14:15, sampling point TC0003 E. Coli
Collected
Aug 26, 2025 14:55
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-230322-10209
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 26, 2025 14:55, sampling point TC0004 Coliform (TCR)
Absence , sample collected Aug 26, 2025 14:55, sampling point TC0004 E. Coli