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.
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.
Choose a date range
The list below shows 16–22 of 22 samples in this date range, newest first.
Routine (7).
| Result | Organism |
|---|---|
|
|
| Absence , sample collected Mar 12, 2025 12:40, sampling point TC0001 | Coliform (TCR) |
| Absence , sample collected Mar 12, 2025 12:40, sampling point TC0001 | E. Coli |
|
|
| Absence , sample collected Feb 26, 2025 07:59, sampling point TC0001 | Coliform (TCR) |
| Absence , sample collected Feb 26, 2025 07:59, sampling point TC0001 | E. Coli |
|
|
| Absence , sample collected Jan 15, 2025 12:05, sampling point TC0001 | Coliform (TCR) |
| Absence , sample collected Jan 15, 2025 12:05, sampling point TC0001 | E. Coli |
|
|
| Absence , sample collected Dec 11, 2024 12:08, sampling point TC0012 | Coliform (TCR) |
| Absence , sample collected Dec 11, 2024 12:08, sampling point TC0012 | E. Coli |
|
|
| Absence , sample collected Nov 20, 2024 12:05, sampling point TC0011 | Coliform (TCR) |
| Absence , sample collected Nov 20, 2024 12:05, sampling point TC0011 | E. Coli |
|
|
| Absence , sample collected Oct 28, 2024 12:05, sampling point TC0010 | Coliform (TCR) |
| Absence , sample collected Oct 28, 2024 12:05, sampling point TC0010 | E. Coli |
|
|
| Absence , sample collected Sep 25, 2024 12:10, sampling point TC0009 | Coliform (TCR) |
| Absence , sample collected Sep 25, 2024 12:10, sampling point TC0009 | E. Coli |
-
- Collected
- Mar 12, 2025 12:40
- Sampling point
- TC0001 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-230710-23985
- Laboratory
- MSDH Lab
- Monitoring period
- Mar 1, 2025 – Mar 31, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Feb 26, 2025 07:59
- Sampling point
- TC0001 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-230710-23984
- Laboratory
- MSDH Lab
- Monitoring period
- Feb 1, 2025 – Feb 28, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jan 15, 2025 12:05
- Sampling point
- TC0001 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-230710-23983
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Jan 31, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Dec 11, 2024 12:08
- Sampling point
- TC0012 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-230710-23982
- Laboratory
- MSDH Lab
- Monitoring period
- Dec 1, 2024 – Dec 31, 2024
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Nov 20, 2024 12:05
- Sampling point
- TC0011 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-230710-23981
- Laboratory
- MSDH Lab
- Monitoring period
- Nov 1, 2024 – Nov 30, 2024
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Oct 28, 2024 12:05
- Sampling point
- TC0010 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-230710-23980
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2024 – Oct 31, 2024
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Sep 25, 2024 12:10
- Sampling point
- TC0009 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-201201-81329
- Laboratory
- MSDH Lab
- Monitoring period
- Sep 1, 2024 – Sep 30, 2024
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli