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.
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.
Choose a date range
The list below shows 16–30 of 214 samples in this date range, newest first.
Routine (15).
| Result | Organism |
|---|---|
|
|
| Absence , sample collected Jul 6, 2026 10:14, sampling point TC0021 | Coliform (TCR) |
| Absence , sample collected Jul 6, 2026 10:14, sampling point TC0021 | E. Coli |
|
|
| Absence , sample collected Jul 6, 2026 09:18, sampling point TC0022 | Coliform (TCR) |
| Absence , sample collected Jul 6, 2026 09:18, sampling point TC0022 | E. Coli |
|
|
| Absence , sample collected Jun 15, 2026 08:30, sampling point TC0001 | Coliform (TCR) |
| Absence , sample collected Jun 15, 2026 08:30, sampling point TC0001 | E. Coli |
|
|
| Absence , sample collected Jun 15, 2026 08:55, sampling point TC0008 | Coliform (TCR) |
| Absence , sample collected Jun 15, 2026 08:55, sampling point TC0008 | E. Coli |
|
|
| Absence , sample collected Jun 15, 2026 09:21, sampling point TC0010 | Coliform (TCR) |
| Absence , sample collected Jun 15, 2026 09:21, sampling point TC0010 | E. Coli |
|
|
| Absence , sample collected Jun 8, 2026 09:21, sampling point TC0005 | Coliform (TCR) |
| Absence , sample collected Jun 8, 2026 09:21, sampling point TC0005 | E. Coli |
|
|
| Absence , sample collected Jun 8, 2026 08:41, sampling point TC0011 | Coliform (TCR) |
| Absence , sample collected Jun 8, 2026 08:41, sampling point TC0011 | E. Coli |
|
|
| Absence , sample collected Jun 8, 2026 09:05, sampling point TC0012 | Coliform (TCR) |
| Absence , sample collected Jun 8, 2026 09:05, sampling point TC0012 | E. Coli |
|
|
| Absence , sample collected Jun 8, 2026 08:19, sampling point TC0015 | Coliform (TCR) |
| Absence , sample collected Jun 8, 2026 08:19, sampling point TC0015 | E. Coli |
|
|
| Absence , sample collected Jun 8, 2026 09:59, sampling point TC0019 | Coliform (TCR) |
| Absence , sample collected Jun 8, 2026 09:59, sampling point TC0019 | E. Coli |
|
|
| Absence , sample collected Jun 8, 2026 08:05, sampling point TC0021 | Coliform (TCR) |
| Absence , sample collected Jun 8, 2026 08:05, sampling point TC0021 | E. Coli |
|
|
| Absence , sample collected Jun 8, 2026 09:43, sampling point TC0022 | Coliform (TCR) |
| Absence , sample collected Jun 8, 2026 09:43, sampling point TC0022 | E. Coli |
|
|
| Absence , sample collected May 13, 2026 08:53, sampling point TC0019 | Coliform (TCR) |
| Absence , sample collected May 13, 2026 08:53, sampling point TC0019 | E. Coli |
|
|
| Absence , sample collected May 13, 2026 08:15, sampling point TC0021 | Coliform (TCR) |
| Absence , sample collected May 13, 2026 08:15, sampling point TC0021 | E. Coli |
|
|
| Absence , sample collected May 13, 2026 08:45, sampling point TC0022 | Coliform (TCR) |
| Absence , sample collected May 13, 2026 08:45, sampling point TC0022 | E. Coli |
-
- Collected
- Jul 6, 2026 10:14
- Sampling point
- TC0021 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251117-59723
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2026 – Jul 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jul 6, 2026 09:18
- Sampling point
- TC0022 No Description
- Sample type
- Routine
- Lab sample
- BACT-251117-59719
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2026 – Jul 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 15, 2026 08:30
- Sampling point
- TC0001 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251117-59715
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 15, 2026 08:55
- Sampling point
- TC0008 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251117-59716
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 15, 2026 09:21
- Sampling point
- TC0010 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251117-59717
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 8, 2026 09:21
- Sampling point
- TC0005 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251117-59712
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 8, 2026 08:41
- Sampling point
- TC0011 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251117-59710
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 8, 2026 09:05
- Sampling point
- TC0012 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251117-59711
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 8, 2026 08:19
- Sampling point
- TC0015 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251117-59709
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 8, 2026 09:59
- Sampling point
- TC0019 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251117-59714
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 8, 2026 08:05
- Sampling point
- TC0021 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251117-59708
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 8, 2026 09:43
- Sampling point
- TC0022 No Description
- Sample type
- Routine
- Lab sample
- BACT-251117-59713
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- May 13, 2026 08:53
- Sampling point
- TC0019 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251117-59707
- Laboratory
- MSDH Lab
- Monitoring period
- May 1, 2026 – May 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- May 13, 2026 08:15
- Sampling point
- TC0021 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251117-59705
- Laboratory
- MSDH Lab
- Monitoring period
- May 1, 2026 – May 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- May 13, 2026 08:45
- Sampling point
- TC0022 No Description
- Sample type
- Routine
- Lab sample
- BACT-251117-59706
- Laboratory
- MSDH Lab
- Monitoring period
- May 1, 2026 – May 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli