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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

MS0610016 , Monterey Water Assn-West

2 of 1,103 results on record were positive for coliform or another organism the agency tests for. The most recent was August 22, 2018.

They fall across 2 of the 840 samples on record.

Every sample on record, October 22, 2003 to August 13, 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 46–60 of 69 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for Monterey Water Assn-West, 46 to 60 of 69 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
May 14, 2025 06:30
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-210811-23167
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 14, 2025 06:30, sampling point TC0002 Coliform (TCR)
Absence , sample collected May 14, 2025 06:30, sampling point TC0002 E. Coli
Collected
May 14, 2025 07:00
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-210811-23168
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 14, 2025 07:00, sampling point TC0003 Coliform (TCR)
Absence , sample collected May 14, 2025 07:00, sampling point TC0003 E. Coli
Collected
May 14, 2025 07:30
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-210811-23169
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 14, 2025 07:30, sampling point TC0004 Coliform (TCR)
Absence , sample collected May 14, 2025 07:30, sampling point TC0004 E. Coli
Collected
Apr 16, 2025 09:50
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-241206-42870
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 16, 2025 09:50, sampling point TC0002 Coliform (TCR)
Absence , sample collected Apr 16, 2025 09:50, sampling point TC0002 E. Coli
Collected
Apr 16, 2025 09:25
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-241206-42869
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 16, 2025 09:25, sampling point TC0003 Coliform (TCR)
Absence , sample collected Apr 16, 2025 09:25, sampling point TC0003 E. Coli
Collected
Apr 16, 2025 09:00
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-241206-42868
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2025 – Apr 30, 2025
Absence , sample collected Apr 16, 2025 09:00, sampling point TC0004 Coliform (TCR)
Absence , sample collected Apr 16, 2025 09:00, sampling point TC0004 E. Coli
Collected
Mar 13, 2025 08:00
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-241206-42865
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2025 – Mar 31, 2025
Absence , sample collected Mar 13, 2025 08:00, sampling point TC0002 Coliform (TCR)
Absence , sample collected Mar 13, 2025 08:00, sampling point TC0002 E. Coli
Collected
Mar 13, 2025 08:30
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-241206-42866
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2025 – Mar 31, 2025
Absence , sample collected Mar 13, 2025 08:30, sampling point TC0003 Coliform (TCR)
Absence , sample collected Mar 13, 2025 08:30, sampling point TC0003 E. Coli
Collected
Mar 13, 2025 09:00
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-241206-42867
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2025 – Mar 31, 2025
Absence , sample collected Mar 13, 2025 09:00, sampling point TC0004 Coliform (TCR)
Absence , sample collected Mar 13, 2025 09:00, sampling point TC0004 E. Coli
Collected
Feb 10, 2025 11:50
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-241206-42864
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2025 – Feb 28, 2025
Absence , sample collected Feb 10, 2025 11:50, sampling point TC0002 Coliform (TCR)
Absence , sample collected Feb 10, 2025 11:50, sampling point TC0002 E. Coli
Collected
Feb 10, 2025 11:25
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-241206-42863
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2025 – Feb 28, 2025
Absence , sample collected Feb 10, 2025 11:25, sampling point TC0003 Coliform (TCR)
Absence , sample collected Feb 10, 2025 11:25, sampling point TC0003 E. Coli
Collected
Feb 10, 2025 10:45
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-241206-42862
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2025 – Feb 28, 2025
Absence , sample collected Feb 10, 2025 10:45, sampling point TC0004 Coliform (TCR)
Absence , sample collected Feb 10, 2025 10:45, sampling point TC0004 E. Coli
Collected
Jan 15, 2025 07:45
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-241206-42859
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2025 – Jan 31, 2025
Absence , sample collected Jan 15, 2025 07:45, sampling point TC0002 Coliform (TCR)
Absence , sample collected Jan 15, 2025 07:45, sampling point TC0002 E. Coli
Collected
Jan 15, 2025 08:20
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-241206-42860
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2025 – Jan 31, 2025
Absence , sample collected Jan 15, 2025 08:20, sampling point TC0003 Coliform (TCR)
Absence , sample collected Jan 15, 2025 08:20, sampling point TC0003 E. Coli
Collected
Jan 15, 2025 08:45
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-241206-42861
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2025 – Jan 31, 2025
Absence , sample collected Jan 15, 2025 08:45, sampling point TC0004 Coliform (TCR)
Absence , sample collected Jan 15, 2025 08:45, sampling point TC0004 E. Coli