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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 151–165 of 489 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for City of Long Beach, 151 to 165 of 489 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Jan 12, 2026
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
2601150-01
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026, sampling point TC0001 Coliform (TCR)
Collected
Jan 12, 2026
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
2601150-02
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026, sampling point TC0002 Coliform (TCR)
Collected
Jan 12, 2026
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
2601150-03
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026, sampling point TC0004 Coliform (TCR)
Collected
Jan 12, 2026
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
2601150-04
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026, sampling point TC0005 Coliform (TCR)
Collected
Jan 12, 2026
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
2601150-05
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026, sampling point TC0008 Coliform (TCR)
Collected
Jan 12, 2026
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
2601150-06
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026, sampling point TC0012 Coliform (TCR)
Collected
Jan 12, 2026
Sampling point
TC0013 Outside Faucet
Sample type
Routine
Lab sample
2601150-07
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026, sampling point TC0013 Coliform (TCR)
Collected
Jan 12, 2026
Sampling point
TC0017 Outside Faucet
Sample type
Routine
Lab sample
2601150-08
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026, sampling point TC0017 Coliform (TCR)
Collected
Jan 12, 2026
Sampling point
TC0020 Outside Faucet
Sample type
Routine
Lab sample
2601150-09
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026, sampling point TC0020 Coliform (TCR)
Collected
Jan 12, 2026
Sampling point
TC0021 Outside Faucet
Sample type
Routine
Lab sample
2601150-10
Laboratory
Micro Methods Laboratory
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 12, 2026, sampling point TC0021 Coliform (TCR)
Collected
Dec 10, 2025
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
2512235-01
Laboratory
Micro Methods Laboratory
Monitoring period
Dec 1, 2025 – Dec 31, 2025
Absence , sample collected Dec 10, 2025, sampling point TC0003 Coliform (TCR)
Collected
Dec 10, 2025
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
2512235-02
Laboratory
Micro Methods Laboratory
Monitoring period
Dec 1, 2025 – Dec 31, 2025
Absence , sample collected Dec 10, 2025, sampling point TC0005 Coliform (TCR)
Collected
Dec 10, 2025
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
2512235-03
Laboratory
Micro Methods Laboratory
Monitoring period
Dec 1, 2025 – Dec 31, 2025
Absence , sample collected Dec 10, 2025, sampling point TC0007 Coliform (TCR)
Collected
Dec 10, 2025
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
2512235-04
Laboratory
Micro Methods Laboratory
Monitoring period
Dec 1, 2025 – Dec 31, 2025
Absence , sample collected Dec 10, 2025, sampling point TC0009 Coliform (TCR)
Collected
Dec 10, 2025
Sampling point
TC0011 Outside Faucet
Sample type
Routine
Lab sample
2512235-05
Laboratory
Micro Methods Laboratory
Monitoring period
Dec 1, 2025 – Dec 31, 2025
Absence , sample collected Dec 10, 2025, sampling point TC0011 Coliform (TCR)