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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

MS0300113 , Ocean Beach

1 of 740 results on record was positive for coliform or another organism the agency tests for. The most recent was December 8, 2005.

They fall across 1 of the 594 samples on record.

Every sample on record, October 2, 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 31–45 of 47 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for Ocean Beach, 31 to 45 of 47 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Jun 3, 2025 10:50
Sampling point
TC0011 Outside Faucet
Sample type
Routine
Lab sample
BACT-250523-29558
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 3, 2025 10:50, sampling point TC0011 Coliform (TCR)
Absence , sample collected Jun 3, 2025 10:50, sampling point TC0011 E. Coli
Collected
May 5, 2025
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
2505076-02
Laboratory
Micro Methods Laboratory
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025, sampling point TC0007 Coliform (TCR)
Collected
May 5, 2025
Sampling point
TC0011 Outside Faucet
Sample type
Routine
Lab sample
2505076-01
Laboratory
Micro Methods Laboratory
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025, sampling point TC0011 Coliform (TCR)
Collected
Apr 1, 2025
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
2504035-01
Laboratory
Micro Methods Laboratory
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025, sampling point TC0008 Coliform (TCR)
Collected
Apr 1, 2025
Sampling point
TC0011 Outside Faucet
Sample type
Routine
Lab sample
2504035-02
Laboratory
Micro Methods Laboratory
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 1, 2025, sampling point TC0011 Coliform (TCR)
Collected
Mar 3, 2025
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
2503033-01
Laboratory
Micro Methods Laboratory
Monitoring period
Mar 1, 2025 – Mar 31, 2025
Absence , sample collected Mar 3, 2025, sampling point TC0003 Coliform (TCR)
Collected
Mar 3, 2025
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
2503033-02
Laboratory
Micro Methods Laboratory
Monitoring period
Mar 1, 2025 – Mar 31, 2025
Absence , sample collected Mar 3, 2025, sampling point TC0007 Coliform (TCR)
Collected
Feb 5, 2025
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
2502125-02
Laboratory
Micro Methods Laboratory
Monitoring period
Feb 1, 2025 – Feb 28, 2025
Absence , sample collected Feb 5, 2025, sampling point TC0004 Coliform (TCR)
Collected
Feb 5, 2025
Sampling point
TC0011 Outside Faucet
Sample type
Routine
Lab sample
2502125-01
Laboratory
Micro Methods Laboratory
Monitoring period
Feb 1, 2025 – Feb 28, 2025
Absence , sample collected Feb 5, 2025, sampling point TC0011 Coliform (TCR)
Collected
Jan 2, 2025
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
2501029-01
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2025 – Jan 31, 2025
Absence , sample collected Jan 2, 2025, sampling point TC0007 Coliform (TCR)
Collected
Jan 2, 2025
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
2501029-02
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2025 – Jan 31, 2025
Absence , sample collected Jan 2, 2025, sampling point TC0010 Coliform (TCR)
Collected
Dec 4, 2024
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
2412116-01
Laboratory
Micro Methods Laboratory
Monitoring period
Dec 1, 2024 – Dec 31, 2024
Absence , sample collected Dec 4, 2024, sampling point TC0007 Coliform (TCR)
Collected
Dec 4, 2024
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
2412116-02
Laboratory
Micro Methods Laboratory
Monitoring period
Dec 1, 2024 – Dec 31, 2024
Absence , sample collected Dec 4, 2024, sampling point TC0010 Coliform (TCR)
Collected
Nov 4, 2024
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
2411028-01
Laboratory
Micro Methods Laboratory
Monitoring period
Nov 1, 2024 – Nov 30, 2024
Absence , sample collected Nov 4, 2024, sampling point TC0007 Coliform (TCR)
Collected
Nov 4, 2024
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
2411028-02
Laboratory
Micro Methods Laboratory
Monitoring period
Nov 1, 2024 – Nov 30, 2024
Absence , sample collected Nov 4, 2024, sampling point TC0010 Coliform (TCR)