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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 5,116 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 4,971 samples on record.

Every sample on record, October 7, 2003 to September 10, 2026. No date range is applied.

This system’s violations

The most recent samples

No date range is applied: this list draws on every sample on record. Show the last two years only.

The list below shows 1,351–1,365 of 4,971 samples on record, newest first.

Routine (15).

Coliform and microbial sample results for City of Long Beach, 1,351 to 1,365 of 4,971 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Apr 5, 2021 07:54
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2104030-08
Laboratory
Micro Methods Laboratory
Monitoring period
Apr 1, 2021 – Apr 30, 2021
Absence , sample collected Apr 5, 2021 07:54, sampling point DS000 Coliform (TCR)
Collected
Apr 5, 2021 08:01
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2104030-09
Laboratory
Micro Methods Laboratory
Monitoring period
Apr 1, 2021 – Apr 30, 2021
Absence , sample collected Apr 5, 2021 08:01, sampling point DS000 Coliform (TCR)
Collected
Apr 5, 2021 08:08
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2104030-10
Laboratory
Micro Methods Laboratory
Monitoring period
Apr 1, 2021 – Apr 30, 2021
Absence , sample collected Apr 5, 2021 08:08, sampling point DS000 Coliform (TCR)
Collected
Mar 9, 2021 07:11
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2103152-01
Laboratory
Micro Methods Laboratory
Monitoring period
Mar 1, 2021 – Mar 31, 2021
Absence , sample collected Mar 9, 2021 07:11, sampling point DS000 Coliform (TCR)
Collected
Mar 9, 2021 07:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2103152-02
Laboratory
Micro Methods Laboratory
Monitoring period
Mar 1, 2021 – Mar 31, 2021
Absence , sample collected Mar 9, 2021 07:20, sampling point DS000 Coliform (TCR)
Collected
Mar 9, 2021 07:28
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2103152-03
Laboratory
Micro Methods Laboratory
Monitoring period
Mar 1, 2021 – Mar 31, 2021
Absence , sample collected Mar 9, 2021 07:28, sampling point DS000 Coliform (TCR)
Collected
Mar 9, 2021 07:35
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2103152-04
Laboratory
Micro Methods Laboratory
Monitoring period
Mar 1, 2021 – Mar 31, 2021
Absence , sample collected Mar 9, 2021 07:35, sampling point DS000 Coliform (TCR)
Collected
Mar 9, 2021 07:46
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2103152-05
Laboratory
Micro Methods Laboratory
Monitoring period
Mar 1, 2021 – Mar 31, 2021
Absence , sample collected Mar 9, 2021 07:46, sampling point DS000 Coliform (TCR)
Collected
Mar 9, 2021 07:58
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2103152-06
Laboratory
Micro Methods Laboratory
Monitoring period
Mar 1, 2021 – Mar 31, 2021
Absence , sample collected Mar 9, 2021 07:58, sampling point DS000 Coliform (TCR)
Collected
Mar 8, 2021 07:03
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2103127-01
Laboratory
Micro Methods Laboratory
Monitoring period
Mar 1, 2021 – Mar 31, 2021
Absence , sample collected Mar 8, 2021 07:03, sampling point DS000 Coliform (TCR)
Collected
Mar 8, 2021 07:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2103127-02
Laboratory
Micro Methods Laboratory
Monitoring period
Mar 1, 2021 – Mar 31, 2021
Absence , sample collected Mar 8, 2021 07:10, sampling point DS000 Coliform (TCR)
Collected
Mar 8, 2021 07:17
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2103127-03
Laboratory
Micro Methods Laboratory
Monitoring period
Mar 1, 2021 – Mar 31, 2021
Absence , sample collected Mar 8, 2021 07:17, sampling point DS000 Coliform (TCR)
Collected
Mar 8, 2021 07:25
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2103127-04
Laboratory
Micro Methods Laboratory
Monitoring period
Mar 1, 2021 – Mar 31, 2021
Absence , sample collected Mar 8, 2021 07:25, sampling point DS000 Coliform (TCR)
Collected
Mar 8, 2021 07:32
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2103127-05
Laboratory
Micro Methods Laboratory
Monitoring period
Mar 1, 2021 – Mar 31, 2021
Absence , sample collected Mar 8, 2021 07:32, sampling point DS000 Coliform (TCR)
Collected
Mar 8, 2021 07:40
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
2103127-06
Laboratory
Micro Methods Laboratory
Monitoring period
Mar 1, 2021 – Mar 31, 2021
Absence , sample collected Mar 8, 2021 07:40, sampling point DS000 Coliform (TCR)