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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

MS0500008 , City of Philadelphia

7 of 3,122 results on record were positive for coliform or another organism the agency tests for. The most recent was June 7, 2022.

They fall across 7 of the 2,413 samples on record.

Every sample on record, October 8, 2003 to August 5, 2026. These figures cover the whole record; the list of samples further down is narrowed.

This system’s violations

The most recent samples

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

Choose a date range

The list below shows 1–15 of 184 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for City of Philadelphia, 1 to 15 of 184 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Aug 5, 2026 10:10
Sampling point
TC0002 Pu Electric Department
Sample type
Routine
Lab sample
BACT-250707-35403
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2026 – Aug 31, 2026
Absence , sample collected Aug 5, 2026 10:10, sampling point TC0002 Coliform (TCR)
Absence , sample collected Aug 5, 2026 10:10, sampling point TC0002 E. Coli
Collected
Aug 5, 2026 08:40
Sampling point
TC0003 Pu Utility Office
Sample type
Routine
Lab sample
BACT-250707-35400
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2026 – Aug 31, 2026
Absence , sample collected Aug 5, 2026 08:40, sampling point TC0003 Coliform (TCR)
Absence , sample collected Aug 5, 2026 08:40, sampling point TC0003 E. Coli
Collected
Aug 5, 2026 08:00
Sampling point
TC0004 Bumpers Drive-In
Sample type
Routine
Lab sample
BACT-250707-35398
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2026 – Aug 31, 2026
Absence , sample collected Aug 5, 2026 08:00, sampling point TC0004 Coliform (TCR)
Absence , sample collected Aug 5, 2026 08:00, sampling point TC0004 E. Coli
Collected
Aug 5, 2026 09:35
Sampling point
TC0005 Williamsville Tank
Sample type
Routine
Lab sample
BACT-250707-35401
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2026 – Aug 31, 2026
Absence , sample collected Aug 5, 2026 09:35, sampling point TC0005 Coliform (TCR)
Absence , sample collected Aug 5, 2026 09:35, sampling point TC0005 E. Coli
Collected
Aug 5, 2026 08:18
Sampling point
TC0010 Sample Faucet Near Fire Hydrant
Sample type
Routine
Lab sample
BACT-250707-35399
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2026 – Aug 31, 2026
Absence , sample collected Aug 5, 2026 08:18, sampling point TC0010 Coliform (TCR)
Absence , sample collected Aug 5, 2026 08:18, sampling point TC0010 E. Coli
Collected
Aug 5, 2026 09:50
Sampling point
TC0017 New Pleasantdale Baptist Church
Sample type
Routine
Lab sample
BACT-250707-35402
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2026 – Aug 31, 2026
Absence , sample collected Aug 5, 2026 09:50, sampling point TC0017 Coliform (TCR)
Absence , sample collected Aug 5, 2026 09:50, sampling point TC0017 E. Coli
Collected
Aug 5, 2026 07:50
Sampling point
TC0018 Trinity Baptist Church
Sample type
Routine
Lab sample
BACT-250707-35397
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2026 – Aug 31, 2026
Absence , sample collected Aug 5, 2026 07:50, sampling point TC0018 Coliform (TCR)
Absence , sample collected Aug 5, 2026 07:50, sampling point TC0018 E. Coli
Collected
Aug 3, 2026 13:30
Sampling point
TC0001 Pu Water Plant
Sample type
Routine
Lab sample
BACT-250707-35396
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2026 – Aug 31, 2026
Absence , sample collected Aug 3, 2026 13:30, sampling point TC0001 Coliform (TCR)
Absence , sample collected Aug 3, 2026 13:30, sampling point TC0001 E. Coli
Collected
Jul 8, 2026 11:15
Sampling point
TC0003 Pu Utility Office
Sample type
Routine
Lab sample
BACT-250707-35392
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 8, 2026 11:15, sampling point TC0003 Coliform (TCR)
Absence , sample collected Jul 8, 2026 11:15, sampling point TC0003 E. Coli
Collected
Jul 8, 2026 11:41
Sampling point
TC0006 Fire Station 1
Sample type
Routine
Lab sample
BACT-250707-35393
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 8, 2026 11:41, sampling point TC0006 Coliform (TCR)
Absence , sample collected Jul 8, 2026 11:41, sampling point TC0006 E. Coli
Collected
Jul 8, 2026 12:05
Sampling point
TC0007 Fire Station 3
Sample type
Routine
Lab sample
BACT-250707-35394
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 8, 2026 12:05, sampling point TC0007 Coliform (TCR)
Absence , sample collected Jul 8, 2026 12:05, sampling point TC0007 E. Coli
Collected
Jul 8, 2026 11:00
Sampling point
TC0009 Philadelphia Church of God
Sample type
Routine
Lab sample
BACT-250707-35391
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 8, 2026 11:00, sampling point TC0009 Coliform (TCR)
Absence , sample collected Jul 8, 2026 11:00, sampling point TC0009 E. Coli
Collected
Jul 8, 2026 10:48
Sampling point
TC0010 Sample Faucet Near Fire Hydrant
Sample type
Routine
Lab sample
BACT-250707-35390
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 8, 2026 10:48, sampling point TC0010 Coliform (TCR)
Absence , sample collected Jul 8, 2026 10:48, sampling point TC0010 E. Coli
Collected
Jul 8, 2026 12:25
Sampling point
TC0016 Tractor Supply
Sample type
Routine
Lab sample
BACT-250707-35395
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 8, 2026 12:25, sampling point TC0016 Coliform (TCR)
Absence , sample collected Jul 8, 2026 12:25, sampling point TC0016 E. Coli
Collected
Jul 8, 2026 10:30
Sampling point
TC0019 Grace Baptist Church
Sample type
Routine
Lab sample
BACT-250707-35389
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 8, 2026 10:30, sampling point TC0019 Coliform (TCR)
Absence , sample collected Jul 8, 2026 10:30, sampling point TC0019 E. Coli