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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 91–105 of 184 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for City of Philadelphia, 91 to 105 of 184 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Sep 3, 2025 09:30
Sampling point
TC0005 Williamsville Tank
Sample type
Routine
Lab sample
BACT-230322-10311
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 3, 2025 09:30, sampling point TC0005 Coliform (TCR)
Absence , sample collected Sep 3, 2025 09:30, sampling point TC0005 E. Coli
Collected
Sep 3, 2025 09:00
Sampling point
TC0008 Philadelphia Elementary
Sample type
Routine
Lab sample
BACT-230322-10310
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 3, 2025 09:00, sampling point TC0008 Coliform (TCR)
Absence , sample collected Sep 3, 2025 09:00, sampling point TC0008 E. Coli
Collected
Sep 3, 2025 08:30
Sampling point
TC0009 Philadelphia Church of God
Sample type
Routine
Lab sample
BACT-230322-10308
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 3, 2025 08:30, sampling point TC0009 Coliform (TCR)
Absence , sample collected Sep 3, 2025 08:30, sampling point TC0009 E. Coli
Collected
Sep 3, 2025 08:05
Sampling point
TC0010 Sample Faucet Near Fire Hydrant
Sample type
Routine
Lab sample
BACT-230322-10307
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 3, 2025 08:05, sampling point TC0010 Coliform (TCR)
Absence , sample collected Sep 3, 2025 08:05, sampling point TC0010 E. Coli
Collected
Sep 3, 2025 10:10
Sampling point
TC0017 New Pleasantdale Baptist Church
Sample type
Routine
Lab sample
BACT-230322-10312
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 3, 2025 10:10, sampling point TC0017 Coliform (TCR)
Absence , sample collected Sep 3, 2025 10:10, sampling point TC0017 E. Coli
Collected
Sep 2, 2025 13:00
Sampling point
TC0001 Pu Water Plant
Sample type
Routine
Lab sample
BACT-240311-14771
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 2, 2025 13:00, sampling point TC0001 Coliform (TCR)
Absence , sample collected Sep 2, 2025 13:00, sampling point TC0001 E. Coli
Collected
Aug 5, 2025 11:40
Sampling point
TC0002 Pu Electric Department
Sample type
Routine
Lab sample
BACT-240311-14769
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 5, 2025 11:40, sampling point TC0002 Coliform (TCR)
Absence , sample collected Aug 5, 2025 11:40, sampling point TC0002 E. Coli
Collected
Aug 5, 2025 09:40
Sampling point
TC0003 Pu Utility Office
Sample type
Routine
Lab sample
BACT-240311-14765
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 5, 2025 09:40, sampling point TC0003 Coliform (TCR)
Absence , sample collected Aug 5, 2025 09:40, sampling point TC0003 E. Coli
Collected
Aug 5, 2025 10:58
Sampling point
TC0005 Williamsville Tank
Sample type
Routine
Lab sample
BACT-240311-14767
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 5, 2025 10:58, sampling point TC0005 Coliform (TCR)
Absence , sample collected Aug 5, 2025 10:58, sampling point TC0005 E. Coli
Collected
Aug 5, 2025 09:20
Sampling point
TC0010 Sample Faucet Near Fire Hydrant
Sample type
Routine
Lab sample
BACT-240311-14764
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 5, 2025 09:20, sampling point TC0010 Coliform (TCR)
Absence , sample collected Aug 5, 2025 09:20, sampling point TC0010 E. Coli
Collected
Aug 5, 2025 11:20
Sampling point
TC0017 New Pleasantdale Baptist Church
Sample type
Routine
Lab sample
BACT-240311-14768
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 5, 2025 11:20, sampling point TC0017 Coliform (TCR)
Absence , sample collected Aug 5, 2025 11:20, sampling point TC0017 E. Coli
Collected
Aug 5, 2025 11:58
Sampling point
TC0018 Trinity Baptist Church
Sample type
Routine
Lab sample
BACT-240311-14770
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 5, 2025 11:58, sampling point TC0018 Coliform (TCR)
Absence , sample collected Aug 5, 2025 11:58, sampling point TC0018 E. Coli
Collected
Aug 5, 2025 10:27
Sampling point
TC0020 Jerusalem Temple Church
Sample type
Routine
Lab sample
BACT-240311-14766
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 5, 2025 10:27, sampling point TC0020 Coliform (TCR)
Absence , sample collected Aug 5, 2025 10:27, sampling point TC0020 E. Coli
Collected
Aug 4, 2025 13:00
Sampling point
TC0001 Pu Water Plant
Sample type
Routine
Lab sample
BACT-240311-14763
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 4, 2025 13:00, sampling point TC0001 Coliform (TCR)
Absence , sample collected Aug 4, 2025 13:00, sampling point TC0001 E. Coli
Collected
Jul 8, 2025 08:50
Sampling point
TC0003 Pu Utility Office
Sample type
Routine
Lab sample
BACT-240311-14718
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 8, 2025 08:50, sampling point TC0003 Coliform (TCR)
Absence , sample collected Jul 8, 2025 08:50, sampling point TC0003 E. Coli