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
MS0550068 , King's Arrow Ranch
17 of 74 results on record were positive for coliform or another organism the agency tests for. The most recent was July 27, 2026.
They fall across 17 of the 37 samples on record.
Every sample on record, February 25, 2025 to July 27, 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 31–37 of 37 samples in this date range, newest first.
Routine (6) and Repeat (1).
| Result | Organism |
|---|---|
|
|
| Presence , sample collected Jul 29, 2025 15:17, sampling point TC0002 | Coliform (TCR) |
| Absence , sample collected Jul 29, 2025 15:17, sampling point TC0002 | E. Coli |
|
|
| Absence , sample collected Jun 25, 2025 13:29, sampling point DS000 | Coliform (TCR) |
| Absence , sample collected Jun 25, 2025 13:29, sampling point DS000 | E. Coli |
|
|
| Presence , sample collected Jun 2, 2025 15:49, sampling point TC0003 | Coliform (TCR) |
| Absence , sample collected Jun 2, 2025 15:49, sampling point TC0003 | E. Coli |
|
|
| Presence , sample collected May 28, 2025 12:40, sampling point TC0003 | Coliform (TCR) |
| Absence , sample collected May 28, 2025 12:40, sampling point TC0003 | E. Coli |
|
|
| Absence , sample collected Apr 29, 2025 14:00, sampling point TC0005 | Coliform (TCR) |
| Absence , sample collected Apr 29, 2025 14:00, sampling point TC0005 | E. Coli |
|
|
| Absence , sample collected Mar 26, 2025 14:03, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Mar 26, 2025 14:03, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Feb 25, 2025 14:41, sampling point TC0001 | Coliform (TCR) |
| Absence , sample collected Feb 25, 2025 14:41, sampling point TC0001 | E. Coli |
-
- Collected
- Jul 29, 2025 15:17
- Sampling point
- TC0002 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-250328-16718
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2025 – Jul 31, 2025
-
- Result
- Presence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 25, 2025 13:29
- Sampling point
- DS000 Distribution DS000
- Sample type
- Routine
- Lab sample
- BACT-250328-16716
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2025 – Jun 30, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 2, 2025 15:49
- Sampling point
- TC0003 Outside Faucet
- Sample type
- Repeat
- Lab sample
- BACT-250328-16732
- Laboratory
- MSDH Lab
- Monitoring period
- May 1, 2025 – May 31, 2025
-
- Result
- Presence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- May 28, 2025 12:40
- Sampling point
- TC0003 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-250328-16729
- Laboratory
- MSDH Lab
- Monitoring period
- May 1, 2025 – May 31, 2025
-
- Result
- Presence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Apr 29, 2025 14:00
- Sampling point
- TC0005 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-250328-16726
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2025 – Apr 30, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Mar 26, 2025 14:03
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-250128-4709
- Laboratory
- MSDH Lab
- Monitoring period
- Mar 1, 2025 – Mar 31, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Feb 25, 2025 14:41
- Sampling point
- TC0001 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-250128-4708
- Laboratory
- MSDH Lab
- Monitoring period
- Feb 1, 2025 – Feb 28, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli