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
MS0090004 , Houlka-Houston W/A
14 of 897 results on record were positive for coliform or another organism the agency tests for. The most recent was June 15, 2026.
They fall across 14 of the 692 samples on record.
Every sample on record, October 21, 2003 to August 3, 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 52 samples in this date range, newest first.
Routine (15).
| Result | Organism |
|---|---|
|
|
| Absence , sample collected Apr 13, 2026 13:45, sampling point TC0010 | Coliform (TCR) |
| Absence , sample collected Apr 13, 2026 13:45, sampling point TC0010 | E. Coli |
|
|
| Absence , sample collected Mar 10, 2026 13:30, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Mar 10, 2026 13:30, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Mar 10, 2026 14:15, sampling point TC0010 | Coliform (TCR) |
| Absence , sample collected Mar 10, 2026 14:15, sampling point TC0010 | E. Coli |
|
|
| Absence , sample collected Feb 4, 2026 13:00, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Feb 4, 2026 13:00, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Feb 4, 2026 13:45, sampling point TC0010 | Coliform (TCR) |
| Absence , sample collected Feb 4, 2026 13:45, sampling point TC0010 | E. Coli |
|
|
| Absence , sample collected Jan 5, 2026 13:45, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Jan 5, 2026 13:45, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Jan 5, 2026 14:00, sampling point TC0010 | Coliform (TCR) |
| Absence , sample collected Jan 5, 2026 14:00, sampling point TC0010 | E. Coli |
|
|
| Absence , sample collected Dec 9, 2025 13:30, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Dec 9, 2025 13:30, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Dec 9, 2025 14:15, sampling point TC0010 | Coliform (TCR) |
| Absence , sample collected Dec 9, 2025 14:15, sampling point TC0010 | E. Coli |
|
|
| Absence , sample collected Nov 4, 2025 13:00, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Nov 4, 2025 13:00, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Nov 4, 2025 13:45, sampling point TC0010 | Coliform (TCR) |
| Absence , sample collected Nov 4, 2025 13:45, sampling point TC0010 | E. Coli |
|
|
| Absence , sample collected Oct 20, 2025 13:30, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Oct 20, 2025 13:30, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Oct 20, 2025 14:00, sampling point TC0010 | Coliform (TCR) |
| Absence , sample collected Oct 20, 2025 14:00, sampling point TC0010 | E. Coli |
|
|
| Absence , sample collected Sep 15, 2025 13:00, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Sep 15, 2025 13:00, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Sep 15, 2025 13:45, sampling point TC0010 | Coliform (TCR) |
| Absence , sample collected Sep 15, 2025 13:45, sampling point TC0010 | E. Coli |
-
- Collected
- Apr 13, 2026 13:45
- Sampling point
- TC0010 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-250801-39346
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2026 – Apr 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Mar 10, 2026 13:30
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-250801-39343
- Laboratory
- MSDH Lab
- Monitoring period
- Mar 1, 2026 – Mar 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Mar 10, 2026 14:15
- Sampling point
- TC0010 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-250801-39344
- Laboratory
- MSDH Lab
- Monitoring period
- Mar 1, 2026 – Mar 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Feb 4, 2026 13:00
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-250801-39341
- Laboratory
- MSDH Lab
- Monitoring period
- Feb 1, 2026 – Feb 28, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Feb 4, 2026 13:45
- Sampling point
- TC0010 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-250801-39342
- Laboratory
- MSDH Lab
- Monitoring period
- Feb 1, 2026 – Feb 28, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jan 5, 2026 13:45
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-250801-39339
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2026 – Jan 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jan 5, 2026 14:00
- Sampling point
- TC0010 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-250801-39340
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2026 – Jan 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Dec 9, 2025 13:30
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-250801-39338
- Laboratory
- MSDH Lab
- Monitoring period
- Dec 1, 2025 – Dec 31, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Dec 9, 2025 14:15
- Sampling point
- TC0010 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240306-12351
- Laboratory
- MSDH Lab
- Monitoring period
- Dec 1, 2025 – Dec 31, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Nov 4, 2025 13:00
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240306-12350
- Laboratory
- MSDH Lab
- Monitoring period
- Nov 1, 2025 – Nov 30, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Nov 4, 2025 13:45
- Sampling point
- TC0010 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240306-12349
- Laboratory
- MSDH Lab
- Monitoring period
- Nov 1, 2025 – Nov 30, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Oct 20, 2025 13:30
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240306-12347
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2025 – Oct 31, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Oct 20, 2025 14:00
- Sampling point
- TC0010 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240306-12348
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2025 – Oct 31, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Sep 15, 2025 13:00
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240306-12345
- Laboratory
- MSDH Lab
- Monitoring period
- Sep 1, 2025 – Sep 30, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Sep 15, 2025 13:45
- Sampling point
- TC0010 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240306-12346
- Laboratory
- MSDH Lab
- Monitoring period
- Sep 1, 2025 – Sep 30, 2025
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli