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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

MS0160010 , Willow Grove Water Assn

9 of 770 results on record were positive for coliform or another organism the agency tests for. The most recent was May 6, 2024.

They fall across 9 of the 593 samples on record.

Every sample on record, October 6, 2003 to July 15, 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 25, 2024 and September 25, 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 45 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for Willow Grove Water Assn, 1 to 15 of 45 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Jul 15, 2026 08:27
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-50971
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 15, 2026 08:27, sampling point TC0001 Coliform (TCR)
Absence , sample collected Jul 15, 2026 08:27, sampling point TC0001 E. Coli
Collected
Jul 15, 2026 08:10
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-50966
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 15, 2026 08:10, sampling point TC0010 Coliform (TCR)
Absence , sample collected Jul 15, 2026 08:10, sampling point TC0010 E. Coli
Collected
Jun 15, 2026 07:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-251001-50969
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 15, 2026 07:15, sampling point DS000 Coliform (TCR)
Absence , sample collected Jun 15, 2026 07:15, sampling point DS000 E. Coli
Collected
Jun 15, 2026 07:30
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-50970
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 15, 2026 07:30, sampling point TC0001 Coliform (TCR)
Absence , sample collected Jun 15, 2026 07:30, sampling point TC0001 E. Coli
Collected
May 4, 2026 08:30
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-50968
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 4, 2026 08:30, sampling point TC0002 Coliform (TCR)
Absence , sample collected May 4, 2026 08:30, sampling point TC0002 E. Coli
Collected
May 4, 2026 08:43
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-50967
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 4, 2026 08:43, sampling point TC0005 Coliform (TCR)
Absence , sample collected May 4, 2026 08:43, sampling point TC0005 E. Coli
Collected
Apr 8, 2026 09:28
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-50965
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 8, 2026 09:28, sampling point TC0001 Coliform (TCR)
Absence , sample collected Apr 8, 2026 09:28, sampling point TC0001 E. Coli
Collected
Apr 8, 2026 09:00
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-50964
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 8, 2026 09:00, sampling point TC0010 Coliform (TCR)
Absence , sample collected Apr 8, 2026 09:00, sampling point TC0010 E. Coli
Collected
Mar 9, 2026 07:36
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-50962
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 9, 2026 07:36, sampling point TC0005 Coliform (TCR)
Absence , sample collected Mar 9, 2026 07:36, sampling point TC0005 E. Coli
Collected
Mar 9, 2026 07:47
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-50963
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 9, 2026 07:47, sampling point TC0005 Coliform (TCR)
Absence , sample collected Mar 9, 2026 07:47, sampling point TC0005 E. Coli
Collected
Mar 9, 2026 07:15
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-50961
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 9, 2026 07:15, sampling point TC0006 Coliform (TCR)
Absence , sample collected Mar 9, 2026 07:15, sampling point TC0006 E. Coli
Collected
Feb 4, 2026 10:58
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-50959
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 4, 2026 10:58, sampling point TC0005 Coliform (TCR)
Absence , sample collected Feb 4, 2026 10:58, sampling point TC0005 E. Coli
Collected
Feb 4, 2026 11:30
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-50960
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 4, 2026 11:30, sampling point TC0006 Coliform (TCR)
Absence , sample collected Feb 4, 2026 11:30, sampling point TC0006 E. Coli
Collected
Jan 5, 2026 09:15
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-50958
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 09:15, sampling point TC0001 Coliform (TCR)
Absence , sample collected Jan 5, 2026 09:15, sampling point TC0001 E. Coli
Collected
Jan 5, 2026 09:37
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-50957
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 5, 2026 09:37, sampling point TC0005 Coliform (TCR)
Absence , sample collected Jan 5, 2026 09:37, sampling point TC0005 E. Coli