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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 271–285 of 489 samples in this date range, newest first.

Routine (8), TG (5) and Repeat (2). The agency publishes no name for the code TG, so none is shown — this page does not invent labels the agency has not published.

Coliform and microbial sample results for City of Long Beach, 271 to 285 of 489 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Jul 3, 2025
Sampling point
DS000 Distribution
Sample type
Repeat
Lab sample
2507084-03
Laboratory
Micro Methods Laboratory
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 3, 2025, sampling point DS000 Coliform (TCR)
Collected
Jul 3, 2025
Sampling point
TC0001 Outside Faucet
Sample type
Repeat
Lab sample
2507084-01
Laboratory
Micro Methods Laboratory
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 3, 2025, sampling point TC0001 Coliform (TCR)
Collected
Jul 3, 2025
Sampling point
WL004 Well W004
Sample type
TG
Lab sample
2507084-04
Laboratory
Micro Methods Laboratory
Monitoring period
Not recorded
Absence , sample collected Jul 3, 2025, sampling point WL004 Coliform (TCR)
Collected
Jul 3, 2025
Sampling point
WL005 Well W005
Sample type
TG
Lab sample
2507084-05
Laboratory
Micro Methods Laboratory
Monitoring period
Not recorded
Absence , sample collected Jul 3, 2025, sampling point WL005 Coliform (TCR)
Collected
Jul 3, 2025
Sampling point
WL010 Well W010
Sample type
TG
Lab sample
2507084-06
Laboratory
Micro Methods Laboratory
Monitoring period
Not recorded
Absence , sample collected Jul 3, 2025, sampling point WL010 Coliform (TCR)
Collected
Jul 3, 2025
Sampling point
WL012 Well W012
Sample type
TG
Lab sample
2507084-07
Laboratory
Micro Methods Laboratory
Monitoring period
Not recorded
Absence , sample collected Jul 3, 2025, sampling point WL012 Coliform (TCR)
Collected
Jul 3, 2025
Sampling point
WL013 Well W013
Sample type
TG
Lab sample
2507084-08
Laboratory
Micro Methods Laboratory
Monitoring period
Not recorded
Absence , sample collected Jul 3, 2025, sampling point WL013 Coliform (TCR)
Collected
Jul 2, 2025
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
2507050-01
Laboratory
Micro Methods Laboratory
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Presence , sample collected Jul 2, 2025, sampling point TC0001 Coliform (TCR)
Absence , sample collected Jul 2, 2025, sampling point TC0001 E. Coli
Collected
Jul 2, 2025
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
2507050-02
Laboratory
Micro Methods Laboratory
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 2, 2025, sampling point TC0005 Coliform (TCR)
Collected
Jul 2, 2025
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
2507050-03
Laboratory
Micro Methods Laboratory
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 2, 2025, sampling point TC0008 Coliform (TCR)
Collected
Jul 2, 2025
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
2507050-04
Laboratory
Micro Methods Laboratory
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 2, 2025, sampling point TC0009 Coliform (TCR)
Collected
Jul 2, 2025
Sampling point
TC0013 Outside Faucet
Sample type
Routine
Lab sample
2507050-05
Laboratory
Micro Methods Laboratory
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 2, 2025, sampling point TC0013 Coliform (TCR)
Collected
Jul 2, 2025
Sampling point
TC0015 Outside Faucet
Sample type
Routine
Lab sample
2507050-06
Laboratory
Micro Methods Laboratory
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 2, 2025, sampling point TC0015 Coliform (TCR)
Collected
Jul 2, 2025
Sampling point
TC0017 Outside Faucet
Sample type
Routine
Lab sample
2507050-07
Laboratory
Micro Methods Laboratory
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 2, 2025, sampling point TC0017 Coliform (TCR)
Collected
Jul 2, 2025
Sampling point
TC0021 Outside Faucet
Sample type
Routine
Lab sample
2507050-08
Laboratory
Micro Methods Laboratory
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 2, 2025, sampling point TC0021 Coliform (TCR)