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
MS0350006 , Porterville W/A
8 of 1,023 results on record were positive for coliform or another organism the agency tests for. The most recent was March 31, 2026.
They fall across 8 of the 835 samples on record.
Every sample on record, November 3, 2003 to July 8, 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 46–50 of 50 samples in this date range, newest first.
Routine (5).
| Result | Organism |
|---|---|
|
|
| Absence , sample collected Dec 4, 2024 11:52, sampling point TC0006 | Coliform (TCR) |
| Absence , sample collected Dec 4, 2024 11:52, sampling point TC0006 | E. Coli |
|
|
| Absence , sample collected Nov 6, 2024 08:52, sampling point TC0005 | Coliform (TCR) |
| Absence , sample collected Nov 6, 2024 08:52, sampling point TC0005 | E. Coli |
|
|
| Absence , sample collected Nov 6, 2024 08:15, sampling point TC0006 | Coliform (TCR) |
| Absence , sample collected Nov 6, 2024 08:15, sampling point TC0006 | E. Coli |
|
|
| Absence , sample collected Oct 9, 2024 12:49, sampling point TC0005 | Coliform (TCR) |
| Absence , sample collected Oct 9, 2024 12:49, sampling point TC0005 | E. Coli |
|
|
| Absence , sample collected Oct 9, 2024 12:14, sampling point TC0006 | Coliform (TCR) |
| Absence , sample collected Oct 9, 2024 12:14, sampling point TC0006 | E. Coli |
-
- Collected
- Dec 4, 2024 11:52
- Sampling point
- TC0006 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-231101-45927
- Laboratory
- MSDH Lab
- Monitoring period
- Dec 1, 2024 – Dec 31, 2024
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Nov 6, 2024 08:52
- Sampling point
- TC0005 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-231101-45925
- Laboratory
- MSDH Lab
- Monitoring period
- Nov 1, 2024 – Nov 30, 2024
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Nov 6, 2024 08:15
- Sampling point
- TC0006 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-231101-45924
- Laboratory
- MSDH Lab
- Monitoring period
- Nov 1, 2024 – Nov 30, 2024
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Oct 9, 2024 12:49
- Sampling point
- TC0005 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-231101-45923
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2024 – Oct 31, 2024
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Oct 9, 2024 12:14
- Sampling point
- TC0006 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-231101-45922
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2024 – Oct 31, 2024
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli