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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

MS0140010 , Town of Lyon

2 of 374 results on record were positive for coliform or another organism the agency tests for. The most recent was June 5, 2014.

They fall across 2 of the 290 samples on record.

Every sample on record, October 21, 2003 to July 29, 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 22 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for Town of Lyon, 1 to 15 of 22 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Jul 29, 2026 09:21
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
BACT-251208-64398
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 29, 2026 09:21, sampling point TC0012 Coliform (TCR)
Absence , sample collected Jul 29, 2026 09:21, sampling point TC0012 E. Coli
Collected
Jun 24, 2026 07:58
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-230710-23971
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 24, 2026 07:58, sampling point TC0006 Coliform (TCR)
Absence , sample collected Jun 24, 2026 07:58, sampling point TC0006 E. Coli
Collected
May 28, 2026
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
99318
Laboratory
Waypoint Analytical
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 28, 2026, sampling point TC0002 Coliform (TCR)
Absence , sample collected May 28, 2026, sampling point TC0002 E. Coli
Collected
Apr 29, 2026 10:01
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-230710-23969
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 29, 2026 10:01, sampling point TC0005 Coliform (TCR)
Absence , sample collected Apr 29, 2026 10:01, sampling point TC0005 E. Coli
Collected
Feb 27, 2026
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
84686
Laboratory
Waypoint Analytical
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 27, 2026, sampling point TC0007 Coliform (TCR)
Collected
Jan 22, 2026
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
92685
Laboratory
Waypoint Analytical
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 22, 2026, sampling point TC0004 Coliform (TCR)
Collected
Dec 17, 2025 07:09
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
BACT-230710-23964
Laboratory
MSDH Lab
Monitoring period
Dec 1, 2025 – Dec 31, 2025
Absence , sample collected Dec 17, 2025 07:09, sampling point TC0012 Coliform (TCR)
Absence , sample collected Dec 17, 2025 07:09, sampling point TC0012 E. Coli
Collected
Nov 26, 2025 07:12
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
86578
Laboratory
MSDH Lab
Monitoring period
Nov 1, 2025 – Nov 30, 2025
Absence , sample collected Nov 26, 2025 07:12, sampling point TC0004 Coliform (TCR)
Collected
Oct 29, 2025 06:51
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-230710-23962
Laboratory
MSDH Lab
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 29, 2025 06:51, sampling point TC0004 Coliform (TCR)
Absence , sample collected Oct 29, 2025 06:51, sampling point TC0004 E. Coli
Collected
Sep 24, 2025 07:42
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-230710-23961
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 24, 2025 07:42, sampling point TC0001 Coliform (TCR)
Absence , sample collected Sep 24, 2025 07:42, sampling point TC0001 E. Coli
Collected
Aug 27, 2025 08:05
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-230710-23960
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 27, 2025 08:05, sampling point TC0005 Coliform (TCR)
Absence , sample collected Aug 27, 2025 08:05, sampling point TC0005 E. Coli
Collected
Jul 23, 2025 06:34
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-230710-23989
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 23, 2025 06:34, sampling point TC0006 Coliform (TCR)
Absence , sample collected Jul 23, 2025 06:34, sampling point TC0006 E. Coli
Collected
Jun 18, 2025 12:14
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
BACT-230710-23988
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 18, 2025 12:14, sampling point TC0007 Coliform (TCR)
Absence , sample collected Jun 18, 2025 12:14, sampling point TC0007 E. Coli
Collected
May 28, 2025 10:22
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-230710-23987
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 28, 2025 10:22, sampling point TC0008 Coliform (TCR)
Absence , sample collected May 28, 2025 10:22, sampling point TC0008 E. Coli
Collected
Apr 16, 2025 11:23
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-230710-23986
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 16, 2025 11:23, sampling point TC0009 Coliform (TCR)
Absence , sample collected Apr 16, 2025 11:23, sampling point TC0009 E. Coli