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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

MS0170043 , Walls Water Assn- Lake Forest

9 of 3,039 results on record were positive for coliform or another organism the agency tests for. The most recent was December 9, 2021.

They fall across 9 of the 2,231 samples on record.

Every sample on record, October 7, 2003 to August 12, 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 214 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for Walls Water Assn- Lake Forest, 61 to 75 of 214 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Feb 11, 2026 08:35
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
BACT-251117-59756
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 11, 2026 08:35, sampling point TC0012 Coliform (TCR)
Absence , sample collected Feb 11, 2026 08:35, sampling point TC0012 E. Coli
Collected
Feb 11, 2026 08:15
Sampling point
TC0021 Outside Faucet
Sample type
Routine
Lab sample
BACT-251117-59757
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 11, 2026 08:15, sampling point TC0021 Coliform (TCR)
Absence , sample collected Feb 11, 2026 08:15, sampling point TC0021 E. Coli
Collected
Feb 9, 2026 08:10
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-251117-59752
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 9, 2026 08:10, sampling point TC0001 Coliform (TCR)
Absence , sample collected Feb 9, 2026 08:10, sampling point TC0001 E. Coli
Collected
Feb 9, 2026 09:17
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-251117-59749
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 9, 2026 09:17, sampling point TC0005 Coliform (TCR)
Absence , sample collected Feb 9, 2026 09:17, sampling point TC0005 E. Coli
Collected
Feb 9, 2026 09:44
Sampling point
TC0015 Outside Faucet
Sample type
Routine
Lab sample
BACT-251117-59748
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 9, 2026 09:44, sampling point TC0015 Coliform (TCR)
Absence , sample collected Feb 9, 2026 09:44, sampling point TC0015 E. Coli
Collected
Feb 9, 2026 08:47
Sampling point
TC0019 Outside Faucet
Sample type
Routine
Lab sample
BACT-251117-59750
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 9, 2026 08:47, sampling point TC0019 Coliform (TCR)
Absence , sample collected Feb 9, 2026 08:47, sampling point TC0019 E. Coli
Collected
Feb 9, 2026 08:29
Sampling point
TC0022 No Description
Sample type
Routine
Lab sample
BACT-251117-59751
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 9, 2026 08:29, sampling point TC0022 Coliform (TCR)
Absence , sample collected Feb 9, 2026 08:29, sampling point TC0022 E. Coli
Collected
Jan 12, 2026 10:41
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-251117-59744
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026 10:41, sampling point TC0001 Coliform (TCR)
Absence , sample collected Jan 12, 2026 10:41, sampling point TC0001 E. Coli
Collected
Jan 12, 2026 10:14
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-251117-59746
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026 10:14, sampling point TC0005 Coliform (TCR)
Absence , sample collected Jan 12, 2026 10:14, sampling point TC0005 E. Coli
Collected
Jan 12, 2026 09:51
Sampling point
TC0015 Outside Faucet
Sample type
Routine
Lab sample
BACT-251117-59747
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026 09:51, sampling point TC0015 Coliform (TCR)
Absence , sample collected Jan 12, 2026 09:51, sampling point TC0015 E. Coli
Collected
Jan 12, 2026 10:55
Sampling point
TC0019 Outside Faucet
Sample type
Routine
Lab sample
BACT-251117-59743
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026 10:55, sampling point TC0019 Coliform (TCR)
Absence , sample collected Jan 12, 2026 10:55, sampling point TC0019 E. Coli
Collected
Jan 12, 2026 10:31
Sampling point
TC0022 No Description
Sample type
Routine
Lab sample
BACT-251117-59745
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026 10:31, sampling point TC0022 Coliform (TCR)
Absence , sample collected Jan 12, 2026 10:31, sampling point TC0022 E. Coli
Collected
Jan 6, 2026 09:17
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-251117-59742
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 6, 2026 09:17, sampling point TC0008 Coliform (TCR)
Absence , sample collected Jan 6, 2026 09:17, sampling point TC0008 E. Coli
Collected
Jan 6, 2026 09:05
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
BACT-251117-59741
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 6, 2026 09:05, sampling point TC0010 Coliform (TCR)
Absence , sample collected Jan 6, 2026 09:05, sampling point TC0010 E. Coli
Collected
Jan 6, 2026 08:38
Sampling point
TC0011 Outside Faucet
Sample type
Routine
Lab sample
BACT-251117-59740
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 6, 2026 08:38, sampling point TC0011 Coliform (TCR)
Absence , sample collected Jan 6, 2026 08:38, sampling point TC0011 E. Coli