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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. No date range is applied.

This system’s violations

The most recent samples

No date range is applied: this list draws on every sample on record. Show the last two years only.

The list below shows 331–345 of 835 samples on record, newest first.

Routine (15).

Coliform and microbial sample results for Porterville W/A, 331 to 345 of 835 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Jul 1, 2013 08:40
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
619100
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2013 – Jul 31, 2013
Absence , sample collected Jul 1, 2013 08:40, sampling point DS000 Coliform (TCR)
Collected
Jun 4, 2013 10:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
613158
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2013 – Jun 30, 2013
Absence , sample collected Jun 4, 2013 10:00, sampling point DS000 Coliform (TCR)
Collected
Jun 4, 2013 09:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
613177
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2013 – Jun 30, 2013
Absence , sample collected Jun 4, 2013 09:20, sampling point DS000 Coliform (TCR)
Collected
May 6, 2013 09:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
605588
Laboratory
MSDH Lab
Monitoring period
May 1, 2013 – May 31, 2013
Absence , sample collected May 6, 2013 09:20, sampling point DS000 Coliform (TCR)
Collected
May 6, 2013 10:08
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
605601
Laboratory
MSDH Lab
Monitoring period
May 1, 2013 – May 31, 2013
Absence , sample collected May 6, 2013 10:08, sampling point DS000 Coliform (TCR)
Collected
Apr 1, 2013 11:06
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
599246
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2013 – Apr 30, 2013
Absence , sample collected Apr 1, 2013 11:06, sampling point DS000 Coliform (TCR)
Collected
Apr 1, 2013 10:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
599247
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2013 – Apr 30, 2013
Absence , sample collected Apr 1, 2013 10:45, sampling point DS000 Coliform (TCR)
Collected
Mar 6, 2013 09:58
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
593797
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2013 – Mar 31, 2013
Absence , sample collected Mar 6, 2013 09:58, sampling point DS000 Coliform (TCR)
Collected
Mar 6, 2013 09:22
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
593846
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2013 – Mar 31, 2013
Absence , sample collected Mar 6, 2013 09:22, sampling point DS000 Coliform (TCR)
Collected
Feb 4, 2013 12:26
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
585659
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2013 – Feb 28, 2013
Absence , sample collected Feb 4, 2013 12:26, sampling point DS000 Coliform (TCR)
Collected
Feb 4, 2013 13:03
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
585691
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2013 – Feb 28, 2013
Absence , sample collected Feb 4, 2013 13:03, sampling point DS000 Coliform (TCR)
Collected
Jan 7, 2013 11:47
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
579385
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2013 – Jan 31, 2013
Absence , sample collected Jan 7, 2013 11:47, sampling point DS000 Coliform (TCR)
Collected
Jan 7, 2013 11:04
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
579423
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2013 – Jan 31, 2013
Absence , sample collected Jan 7, 2013 11:04, sampling point DS000 Coliform (TCR)
Collected
Dec 3, 2012 10:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
571269
Laboratory
MSDH Lab
Monitoring period
Dec 1, 2012 – Dec 31, 2012
Absence , sample collected Dec 3, 2012 10:30, sampling point DS000 Coliform (TCR)
Collected
Dec 3, 2012 10:59
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
571311
Laboratory
MSDH Lab
Monitoring period
Dec 1, 2012 – Dec 31, 2012
Absence , sample collected Dec 3, 2012 10:59, sampling point DS000 Coliform (TCR)