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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 196–210 of 835 samples on record, newest first.

Routine (10), Repeat (3) and TG (2). The agency publishes no name for the code TG, so none is shown — this page does not invent labels the agency has not published.

Coliform and microbial sample results for Porterville W/A, 196 to 210 of 835 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Dec 3, 2018 09:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
1040816
Laboratory
MSDH Lab
Monitoring period
Dec 1, 2018 – Dec 31, 2018
Absence , sample collected Dec 3, 2018 09:15, sampling point DS000 Coliform (TCR)
Collected
Nov 5, 2018 09:58
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
1034641
Laboratory
MSDH Lab
Monitoring period
Nov 1, 2018 – Nov 30, 2018
Absence , sample collected Nov 5, 2018 09:58, sampling point DS000 Coliform (TCR)
Collected
Nov 5, 2018 09:08
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
1034642
Laboratory
MSDH Lab
Monitoring period
Nov 1, 2018 – Nov 30, 2018
Absence , sample collected Nov 5, 2018 09:08, sampling point DS000 Coliform (TCR)
Collected
Oct 1, 2018 11:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
1027814
Laboratory
MSDH Lab
Monitoring period
Oct 1, 2018 – Oct 31, 2018
Absence , sample collected Oct 1, 2018 11:00, sampling point DS000 Coliform (TCR)
Collected
Oct 1, 2018 10:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
1027815
Laboratory
MSDH Lab
Monitoring period
Oct 1, 2018 – Oct 31, 2018
Absence , sample collected Oct 1, 2018 10:30, sampling point DS000 Coliform (TCR)
Collected
Sep 5, 2018 15:16
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
1022250
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2018 – Sep 30, 2018
Absence , sample collected Sep 5, 2018 15:16, sampling point DS000 Coliform (TCR)
Collected
Sep 5, 2018 14:29
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
1022251
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2018 – Sep 30, 2018
Absence , sample collected Sep 5, 2018 14:29, sampling point DS000 Coliform (TCR)
Collected
Aug 8, 2018 09:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
1018058
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2018 – Aug 31, 2018
Absence , sample collected Aug 8, 2018 09:10, sampling point DS000 Coliform (TCR)
Collected
Aug 8, 2018 09:58
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
1018059
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2018 – Aug 31, 2018
Absence , sample collected Aug 8, 2018 09:58, sampling point DS000 Coliform (TCR)
Collected
Jul 5, 2018 15:30
Sampling point
DS000 Distribution
Sample type
Repeat
Lab sample
1010746
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2018 – Jul 31, 2018
Absence , sample collected Jul 5, 2018 15:30, sampling point DS000 Coliform (TCR)
Collected
Jul 5, 2018 15:45
Sampling point
DS000 Distribution
Sample type
Repeat
Lab sample
1010747
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2018 – Jul 31, 2018
Absence , sample collected Jul 5, 2018 15:45, sampling point DS000 Coliform (TCR)
Collected
Jul 5, 2018 15:20
Sampling point
DS000 Distribution
Sample type
Repeat
Lab sample
1010748
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2018 – Jul 31, 2018
Absence , sample collected Jul 5, 2018 15:20, sampling point DS000 Coliform (TCR)
Collected
Jul 5, 2018 14:54
Sampling point
DS000 Distribution
Sample type
TG
Lab sample
1010749
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2018 – Jul 31, 2018
Absence , sample collected Jul 5, 2018 14:54, sampling point DS000 Coliform (TCR)
Collected
Jul 5, 2018 15:15
Sampling point
DS000 Distribution
Sample type
TG
Lab sample
1010750
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2018 – Jul 31, 2018
Absence , sample collected Jul 5, 2018 15:15, sampling point DS000 Coliform (TCR)
Collected
Jul 2, 2018 11:56
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
1010579
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2018 – Jul 31, 2018
Absence , sample collected Jul 2, 2018 11:56, sampling point DS000 Coliform (TCR)