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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

MS0610023 , City of Richland

6 of 2,864 results on record were positive for coliform or another organism the agency tests for. The most recent was August 10, 2023.

They fall across 5 of the 2,153 samples on record.

Every sample on record, October 3, 2003 to August 17, 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 31–45 of 184 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for City of Richland, 31 to 45 of 184 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
May 12, 2026 10:00
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45212
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 12, 2026 10:00, sampling point TC0009 Coliform (TCR)
Absence , sample collected May 12, 2026 10:00, sampling point TC0009 E. Coli
Collected
May 12, 2026 09:00
Sampling point
TC0011 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45209
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 12, 2026 09:00, sampling point TC0011 Coliform (TCR)
Absence , sample collected May 12, 2026 09:00, sampling point TC0011 E. Coli
Collected
Apr 14, 2026 11:20
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45206
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 14, 2026 11:20, sampling point TC0007 Coliform (TCR)
Absence , sample collected Apr 14, 2026 11:20, sampling point TC0007 E. Coli
Collected
Apr 14, 2026 11:40
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45207
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 14, 2026 11:40, sampling point TC0009 Coliform (TCR)
Absence , sample collected Apr 14, 2026 11:40, sampling point TC0009 E. Coli
Collected
Apr 14, 2026 11:00
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45205
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 14, 2026 11:00, sampling point TC0012 Coliform (TCR)
Absence , sample collected Apr 14, 2026 11:00, sampling point TC0012 E. Coli
Collected
Apr 14, 2026 12:00
Sampling point
TC0014 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45208
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 14, 2026 12:00, sampling point TC0014 Coliform (TCR)
Absence , sample collected Apr 14, 2026 12:00, sampling point TC0014 E. Coli
Collected
Apr 13, 2026 10:00
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45204
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 13, 2026 10:00, sampling point TC0001 Coliform (TCR)
Absence , sample collected Apr 13, 2026 10:00, sampling point TC0001 E. Coli
Collected
Apr 13, 2026 09:20
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45202
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 13, 2026 09:20, sampling point TC0002 Coliform (TCR)
Absence , sample collected Apr 13, 2026 09:20, sampling point TC0002 E. Coli
Collected
Apr 13, 2026 09:00
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45201
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 13, 2026 09:00, sampling point TC0004 Coliform (TCR)
Absence , sample collected Apr 13, 2026 09:00, sampling point TC0004 E. Coli
Collected
Apr 13, 2026 09:40
Sampling point
TC0011 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45203
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 13, 2026 09:40, sampling point TC0011 Coliform (TCR)
Absence , sample collected Apr 13, 2026 09:40, sampling point TC0011 E. Coli
Collected
Mar 17, 2026 10:35
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45199
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 17, 2026 10:35, sampling point TC0009 Coliform (TCR)
Absence , sample collected Mar 17, 2026 10:35, sampling point TC0009 E. Coli
Collected
Mar 17, 2026 10:50
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45200
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 17, 2026 10:50, sampling point TC0012 Coliform (TCR)
Absence , sample collected Mar 17, 2026 10:50, sampling point TC0012 E. Coli
Collected
Mar 11, 2026 09:00
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45191
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 11, 2026 09:00, sampling point TC0004 Coliform (TCR)
Absence , sample collected Mar 11, 2026 09:00, sampling point TC0004 E. Coli
Collected
Mar 11, 2026 09:20
Sampling point
TC0014 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45192
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 11, 2026 09:20, sampling point TC0014 Coliform (TCR)
Absence , sample collected Mar 11, 2026 09:20, sampling point TC0014 E. Coli
Collected
Mar 10, 2026 09:40
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-241230-45189
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 10, 2026 09:40, sampling point TC0001 Coliform (TCR)
Absence , sample collected Mar 10, 2026 09:40, sampling point TC0001 E. Coli