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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

MS0240005 , City of Long Beach

26 of 5,076 results on record were positive for coliform or another organism the agency tests for. The most recent was August 7, 2025.

They fall across 26 of the 4,951 samples on record.

Every sample on record, October 7, 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 211–225 of 489 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for City of Long Beach, 211 to 225 of 489 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Oct 13, 2025
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
2510221-01
Laboratory
Micro Methods Laboratory
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 13, 2025, sampling point TC0001 Coliform (TCR)
Collected
Oct 13, 2025
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
2510221-02
Laboratory
Micro Methods Laboratory
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 13, 2025, sampling point TC0004 Coliform (TCR)
Collected
Oct 13, 2025
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
2510221-03
Laboratory
Micro Methods Laboratory
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 13, 2025, sampling point TC0005 Coliform (TCR)
Collected
Oct 13, 2025
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
2510221-04
Laboratory
Micro Methods Laboratory
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 13, 2025, sampling point TC0006 Coliform (TCR)
Collected
Oct 13, 2025
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
2510221-05
Laboratory
Micro Methods Laboratory
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 13, 2025, sampling point TC0008 Coliform (TCR)
Collected
Oct 13, 2025
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
2510221-06
Laboratory
Micro Methods Laboratory
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 13, 2025, sampling point TC0009 Coliform (TCR)
Collected
Oct 13, 2025
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
2510221-07
Laboratory
Micro Methods Laboratory
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 13, 2025, sampling point TC0010 Coliform (TCR)
Collected
Oct 13, 2025
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
2510221-08
Laboratory
Micro Methods Laboratory
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 13, 2025, sampling point TC0012 Coliform (TCR)
Collected
Oct 13, 2025
Sampling point
TC0018 Outside Faucet
Sample type
Routine
Lab sample
2510221-09
Laboratory
Micro Methods Laboratory
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 13, 2025, sampling point TC0018 Coliform (TCR)
Collected
Oct 13, 2025
Sampling point
TC0022 Outside Faucet
Sample type
Routine
Lab sample
2510221-10
Laboratory
Micro Methods Laboratory
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 13, 2025, sampling point TC0022 Coliform (TCR)
Collected
Sep 9, 2025
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
2509150-01
Laboratory
Micro Methods Laboratory
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 9, 2025, sampling point TC0004 Coliform (TCR)
Collected
Sep 9, 2025
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
2509150-02
Laboratory
Micro Methods Laboratory
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 9, 2025, sampling point TC0006 Coliform (TCR)
Collected
Sep 9, 2025
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
2509150-03
Laboratory
Micro Methods Laboratory
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 9, 2025, sampling point TC0009 Coliform (TCR)
Collected
Sep 9, 2025
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
2509151-01
Laboratory
Micro Methods Laboratory
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 9, 2025, sampling point TC0010 Coliform (TCR)
Collected
Sep 9, 2025
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
2509150-04
Laboratory
Micro Methods Laboratory
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 9, 2025, sampling point TC0012 Coliform (TCR)