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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 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 136–150 of 489 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for City of Long Beach, 136 to 150 of 489 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Feb 18, 2026
Sampling point
TC0011 Outside Faucet
Sample type
Routine
Lab sample
2602313-06
Laboratory
Micro Methods Laboratory
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 18, 2026, sampling point TC0011 Coliform (TCR)
Collected
Feb 18, 2026
Sampling point
TC0014 Outside Faucet
Sample type
Routine
Lab sample
2602313-07
Laboratory
Micro Methods Laboratory
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 18, 2026, sampling point TC0014 Coliform (TCR)
Collected
Feb 18, 2026
Sampling point
TC0015 Outside Faucet
Sample type
Routine
Lab sample
2602313-08
Laboratory
Micro Methods Laboratory
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 18, 2026, sampling point TC0015 Coliform (TCR)
Collected
Feb 18, 2026
Sampling point
TC0018 Outside Faucet
Sample type
Routine
Lab sample
2602313-09
Laboratory
Micro Methods Laboratory
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 18, 2026, sampling point TC0018 Coliform (TCR)
Collected
Feb 18, 2026
Sampling point
TC0020 Outside Faucet
Sample type
Routine
Lab sample
2602313-10
Laboratory
Micro Methods Laboratory
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 18, 2026, sampling point TC0020 Coliform (TCR)
Collected
Jan 13, 2026
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
2601176-01
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 13, 2026, sampling point TC0003 Coliform (TCR)
Collected
Jan 13, 2026
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
2601176-02
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 13, 2026, sampling point TC0007 Coliform (TCR)
Collected
Jan 13, 2026
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
2601176-03
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 13, 2026, sampling point TC0009 Coliform (TCR)
Collected
Jan 13, 2026
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
2601176-04
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 13, 2026, sampling point TC0010 Coliform (TCR)
Collected
Jan 13, 2026
Sampling point
TC0011 Outside Faucet
Sample type
Routine
Lab sample
2601176-05
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 13, 2026, sampling point TC0011 Coliform (TCR)
Collected
Jan 13, 2026
Sampling point
TC0013 Outside Faucet
Sample type
Routine
Lab sample
2601176-06
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 13, 2026, sampling point TC0013 Coliform (TCR)
Collected
Jan 13, 2026
Sampling point
TC0018 Outside Faucet
Sample type
Routine
Lab sample
2601176-07
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 13, 2026, sampling point TC0018 Coliform (TCR)
Collected
Jan 13, 2026
Sampling point
TC0019 Outside Faucet
Sample type
Routine
Lab sample
2601176-08
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 13, 2026, sampling point TC0019 Coliform (TCR)
Collected
Jan 13, 2026
Sampling point
TC0022 Outside Faucet
Sample type
Routine
Lab sample
2601176-09
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 13, 2026, sampling point TC0022 Coliform (TCR)
Collected
Jan 13, 2026
Sampling point
TC0025 Outside Faucet
Sample type
Routine
Lab sample
2601176-10
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 13, 2026, sampling point TC0025 Coliform (TCR)