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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 27, 2024 and September 27, 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 121–135 of 184 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for City of Philadelphia, 121 to 135 of 184 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
May 6, 2025 13:45
Sampling point
TC0001 Pu Water Plant
Sample type
Routine
Lab sample
BACT-240311-14686
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 6, 2025 13:45, sampling point TC0001 Coliform (TCR)
Absence , sample collected May 6, 2025 13:45, sampling point TC0001 E. Coli
Collected
May 5, 2025 09:05
Sampling point
TC0003 Pu Utility Office
Sample type
Routine
Lab sample
BACT-240311-14680
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 09:05, sampling point TC0003 Coliform (TCR)
Absence , sample collected May 5, 2025 09:05, sampling point TC0003 E. Coli
Collected
May 5, 2025 10:30
Sampling point
TC0005 Williamsville Tank
Sample type
Routine
Lab sample
BACT-240311-14684
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 10:30, sampling point TC0005 Coliform (TCR)
Absence , sample collected May 5, 2025 10:30, sampling point TC0005 E. Coli
Collected
May 5, 2025 09:30
Sampling point
TC0006 Fire Station 1
Sample type
Routine
Lab sample
BACT-240311-14681
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 09:30, sampling point TC0006 Coliform (TCR)
Absence , sample collected May 5, 2025 09:30, sampling point TC0006 E. Coli
Collected
May 5, 2025 08:47
Sampling point
TC0010 Sample Faucet Near Fire Hydrant
Sample type
Routine
Lab sample
BACT-240311-14679
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 08:47, sampling point TC0010 Coliform (TCR)
Absence , sample collected May 5, 2025 08:47, sampling point TC0010 E. Coli
Collected
May 5, 2025 11:15
Sampling point
TC0018 Trinity Baptist Church
Sample type
Routine
Lab sample
BACT-240311-14685
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 11:15, sampling point TC0018 Coliform (TCR)
Absence , sample collected May 5, 2025 11:15, sampling point TC0018 E. Coli
Collected
May 5, 2025 08:23
Sampling point
TC0019 Grace Baptist Church
Sample type
Routine
Lab sample
BACT-240311-14678
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 08:23, sampling point TC0019 Coliform (TCR)
Absence , sample collected May 5, 2025 08:23, sampling point TC0019 E. Coli
Collected
May 5, 2025 09:40
Sampling point
TC0020 Jerusalem Temple Church
Sample type
Routine
Lab sample
BACT-240311-14682
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 09:40, sampling point TC0020 Coliform (TCR)
Absence , sample collected May 5, 2025 09:40, sampling point TC0020 E. Coli
Collected
Apr 2, 2025 13:30
Sampling point
TC0001 Pu Water Plant
Sample type
Routine
Lab sample
BACT-240311-14677
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 2, 2025 13:30, sampling point TC0001 Coliform (TCR)
Absence , sample collected Apr 2, 2025 13:30, sampling point TC0001 E. Coli
Collected
Apr 1, 2025 10:25
Sampling point
TC0002 Pu Electric Department
Sample type
Routine
Lab sample
BACT-240311-14675
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025 10:25, sampling point TC0002 Coliform (TCR)
Absence , sample collected Apr 1, 2025 10:25, sampling point TC0002 E. Coli
Collected
Apr 1, 2025 09:03
Sampling point
TC0003 Pu Utility Office
Sample type
Routine
Lab sample
BACT-240311-14711
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025 09:03, sampling point TC0003 Coliform (TCR)
Absence , sample collected Apr 1, 2025 09:03, sampling point TC0003 E. Coli
Collected
Apr 1, 2025 08:25
Sampling point
TC0004 Bumpers Drive-In
Sample type
Routine
Lab sample
BACT-240311-14709
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025 08:25, sampling point TC0004 Coliform (TCR)
Absence , sample collected Apr 1, 2025 08:25, sampling point TC0004 E. Coli
Collected
Apr 1, 2025 09:45
Sampling point
TC0005 Williamsville Tank
Sample type
Routine
Lab sample
BACT-240311-14673
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025 09:45, sampling point TC0005 Coliform (TCR)
Absence , sample collected Apr 1, 2025 09:45, sampling point TC0005 E. Coli
Collected
Apr 1, 2025 09:20
Sampling point
TC0006 Fire Station 1
Sample type
Routine
Lab sample
BACT-240311-14672
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025 09:20, sampling point TC0006 Coliform (TCR)
Absence , sample collected Apr 1, 2025 09:20, sampling point TC0006 E. Coli
Collected
Apr 1, 2025 08:50
Sampling point
TC0009 Philadelphia Church of God
Sample type
Routine
Lab sample
BACT-240311-14710
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025 08:50, sampling point TC0009 Coliform (TCR)
Absence , sample collected Apr 1, 2025 08:50, sampling point TC0009 E. Coli