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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 26, 2024 and September 26, 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 16–30 of 184 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for City of Philadelphia, 16 to 30 of 184 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Jul 7, 2026 13:30
Sampling point
TC0001 Pu Water Plant
Sample type
Routine
Lab sample
BACT-250707-35386
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 7, 2026 13:30, sampling point TC0001 Coliform (TCR)
Absence , sample collected Jul 7, 2026 13:30, sampling point TC0001 E. Coli
Collected
Jun 2, 2026 14:10
Sampling point
TC0001 Pu Water Plant
Sample type
Routine
Lab sample
BACT-250707-35385
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 2, 2026 14:10, sampling point TC0001 Coliform (TCR)
Absence , sample collected Jun 2, 2026 14:10, sampling point TC0001 E. Coli
Collected
Jun 1, 2026 09:17
Sampling point
TC0003 Pu Utility Office
Sample type
Routine
Lab sample
BACT-250707-35380
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 1, 2026 09:17, sampling point TC0003 Coliform (TCR)
Absence , sample collected Jun 1, 2026 09:17, sampling point TC0003 E. Coli
Collected
Jun 1, 2026 08:36
Sampling point
TC0004 Bumpers Drive-In
Sample type
Routine
Lab sample
BACT-250707-35378
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 1, 2026 08:36, sampling point TC0004 Coliform (TCR)
Absence , sample collected Jun 1, 2026 08:36, sampling point TC0004 E. Coli
Collected
Jun 1, 2026 10:05
Sampling point
TC0005 Williamsville Tank
Sample type
Routine
Lab sample
BACT-250707-35382
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 1, 2026 10:05, sampling point TC0005 Coliform (TCR)
Absence , sample collected Jun 1, 2026 10:05, sampling point TC0005 E. Coli
Collected
Jun 1, 2026 08:57
Sampling point
TC0010 Sample Faucet Near Fire Hydrant
Sample type
Routine
Lab sample
BACT-250707-35379
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 1, 2026 08:57, sampling point TC0010 Coliform (TCR)
Absence , sample collected Jun 1, 2026 08:57, sampling point TC0010 E. Coli
Collected
Jun 1, 2026 09:39
Sampling point
TC0014 Industrial Park Tank
Sample type
Routine
Lab sample
BACT-250707-35381
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 1, 2026 09:39, sampling point TC0014 Coliform (TCR)
Absence , sample collected Jun 1, 2026 09:39, sampling point TC0014 E. Coli
Collected
Jun 1, 2026 10:26
Sampling point
TC0017 New Pleasantdale Baptist Church
Sample type
Routine
Lab sample
BACT-250707-35383
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 1, 2026 10:26, sampling point TC0017 Coliform (TCR)
Absence , sample collected Jun 1, 2026 10:26, sampling point TC0017 E. Coli
Collected
Jun 1, 2026 11:07
Sampling point
TC0018 Trinity Baptist Church
Sample type
Routine
Lab sample
BACT-250707-35384
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 1, 2026 11:07, sampling point TC0018 Coliform (TCR)
Absence , sample collected Jun 1, 2026 11:07, sampling point TC0018 E. Coli
Collected
May 5, 2026 13:30
Sampling point
TC0001 Pu Water Plant
Sample type
Routine
Lab sample
BACT-250707-35377
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 5, 2026 13:30, sampling point TC0001 Coliform (TCR)
Absence , sample collected May 5, 2026 13:30, sampling point TC0001 E. Coli
Collected
May 4, 2026 11:25
Sampling point
TC0002 Pu Electric Department
Sample type
Routine
Lab sample
BACT-250707-35376
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 4, 2026 11:25, sampling point TC0002 Coliform (TCR)
Absence , sample collected May 4, 2026 11:25, sampling point TC0002 E. Coli
Collected
May 4, 2026 10:05
Sampling point
TC0003 Pu Utility Office
Sample type
Routine
Lab sample
BACT-250707-35372
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 4, 2026 10:05, sampling point TC0003 Coliform (TCR)
Absence , sample collected May 4, 2026 10:05, sampling point TC0003 E. Coli
Collected
May 4, 2026 11:05
Sampling point
TC0005 Williamsville Tank
Sample type
Routine
Lab sample
BACT-250707-35375
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 4, 2026 11:05, sampling point TC0005 Coliform (TCR)
Absence , sample collected May 4, 2026 11:05, sampling point TC0005 E. Coli
Collected
May 4, 2026 10:40
Sampling point
TC0006 Fire Station 1
Sample type
Routine
Lab sample
BACT-250707-35374
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 4, 2026 10:40, sampling point TC0006 Coliform (TCR)
Absence , sample collected May 4, 2026 10:40, sampling point TC0006 E. Coli
Collected
May 4, 2026 10:25
Sampling point
TC0008 Philadelphia Elementary
Sample type
Routine
Lab sample
BACT-250707-35373
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 4, 2026 10:25, sampling point TC0008 Coliform (TCR)
Absence , sample collected May 4, 2026 10:25, sampling point TC0008 E. Coli