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
MS0240263 , West Harrison High School
1 of 571 results on record was positive for coliform or another organism the agency tests for. The most recent was November 6, 2017.
They fall across 1 of the 396 samples on record.
Every sample on record, August 12, 2009 to August 5, 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 1–15 of 46 samples in this date range, newest first.
Routine (15).
| Result | Organism |
|---|---|
|
|
| Absence , sample collected Aug 5, 2026 12:00, sampling point TC0002 | Coliform (TCR) |
| Absence , sample collected Aug 5, 2026 12:00, sampling point TC0002 | E. Coli |
|
|
| Absence , sample collected Aug 5, 2026 12:13, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Aug 5, 2026 12:13, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Jul 8, 2026 13:10, sampling point TC0001 | Coliform (TCR) |
| Absence , sample collected Jul 8, 2026 13:10, sampling point TC0001 | E. Coli |
|
|
| Absence , sample collected Jul 8, 2026 13:25, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Jul 8, 2026 13:25, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Jun 3, 2026 13:10, sampling point TC0002 | Coliform (TCR) |
| Absence , sample collected Jun 3, 2026 13:10, sampling point TC0002 | E. Coli |
|
|
| Absence , sample collected Jun 3, 2026 13:21, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Jun 3, 2026 13:21, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected May 13, 2026 12:05, sampling point TC0002 | Coliform (TCR) |
| Absence , sample collected May 13, 2026 12:05, sampling point TC0002 | E. Coli |
|
|
| Absence , sample collected May 13, 2026 12:18, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected May 13, 2026 12:18, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Apr 13, 2026 13:00, sampling point TC0002 | Coliform (TCR) |
| Absence , sample collected Apr 13, 2026 13:00, sampling point TC0002 | E. Coli |
|
|
| Absence , sample collected Apr 13, 2026 13:12, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Apr 13, 2026 13:12, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Mar 4, 2026 11:36, sampling point TC0002 | Coliform (TCR) |
| Absence , sample collected Mar 4, 2026 11:36, sampling point TC0002 | E. Coli |
|
|
| Absence , sample collected Mar 4, 2026 11:45, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Mar 4, 2026 11:45, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Feb 4, 2026 13:08, sampling point TC0002 | Coliform (TCR) |
| Absence , sample collected Feb 4, 2026 13:08, sampling point TC0002 | E. Coli |
|
|
| Absence , sample collected Feb 4, 2026 13:20, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Feb 4, 2026 13:20, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Jan 7, 2026 14:55, sampling point TC0002 | Coliform (TCR) |
| Absence , sample collected Jan 7, 2026 14:55, sampling point TC0002 | E. Coli |
-
- Collected
- Aug 5, 2026 12:00
- Sampling point
- TC0002 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251001-51329
- Laboratory
- MSDH Lab
- Monitoring period
- Aug 1, 2026 – Aug 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Aug 5, 2026 12:13
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251001-51330
- Laboratory
- MSDH Lab
- Monitoring period
- Aug 1, 2026 – Aug 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jul 8, 2026 13:10
- Sampling point
- TC0001 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251001-51327
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2026 – Jul 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jul 8, 2026 13:25
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-251001-51328
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2026 – Jul 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 3, 2026 13:10
- Sampling point
- TC0002 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240808-30245
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 3, 2026 13:21
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240808-30244
- 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 12:05
- Sampling point
- TC0002 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240808-30247
- 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 12:18
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240808-30246
- Laboratory
- MSDH Lab
- Monitoring period
- May 1, 2026 – May 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Apr 13, 2026 13:00
- Sampling point
- TC0002 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240808-30249
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2026 – Apr 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Apr 13, 2026 13:12
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240808-30248
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2026 – Apr 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Mar 4, 2026 11:36
- Sampling point
- TC0002 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240808-30251
- Laboratory
- MSDH Lab
- Monitoring period
- Mar 1, 2026 – Mar 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Mar 4, 2026 11:45
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240808-30250
- 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 13:08
- Sampling point
- TC0002 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240808-30253
- 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 13:20
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240808-30252
- Laboratory
- MSDH Lab
- Monitoring period
- Feb 1, 2026 – Feb 28, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jan 7, 2026 14:55
- Sampling point
- TC0002 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-240808-30235
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2026 – Jan 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli