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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. 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 16–30 of 840 samples on record, newest first.

Routine (15).

Coliform and microbial sample results for Monterey Water Assn-West, 16 to 30 of 840 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Mar 2, 2026 10:30
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25919
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 2, 2026 10:30, sampling point TC0002 Coliform (TCR)
Absence , sample collected Mar 2, 2026 10:30, sampling point TC0002 E. Coli
Collected
Mar 2, 2026 11:15
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25920
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 2, 2026 11:15, sampling point TC0003 Coliform (TCR)
Absence , sample collected Mar 2, 2026 11:15, sampling point TC0003 E. Coli
Collected
Mar 2, 2026 11:30
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25918
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 2, 2026 11:30, sampling point TC0004 Coliform (TCR)
Absence , sample collected Mar 2, 2026 11:30, sampling point TC0004 E. Coli
Collected
Feb 9, 2026 08:30
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25914
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 9, 2026 08:30, sampling point TC0002 Coliform (TCR)
Absence , sample collected Feb 9, 2026 08:30, sampling point TC0002 E. Coli
Collected
Feb 9, 2026 08:15
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25915
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 9, 2026 08:15, sampling point TC0003 Coliform (TCR)
Absence , sample collected Feb 9, 2026 08:15, sampling point TC0003 E. Coli
Collected
Feb 9, 2026 07:45
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25916
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 9, 2026 07:45, sampling point TC0004 Coliform (TCR)
Absence , sample collected Feb 9, 2026 07:45, sampling point TC0004 E. Coli
Collected
Jan 20, 2026 07:25
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25912
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 20, 2026 07:25, sampling point TC0002 Coliform (TCR)
Absence , sample collected Jan 20, 2026 07:25, sampling point TC0002 E. Coli
Collected
Jan 20, 2026 07:00
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25911
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 20, 2026 07:00, sampling point TC0003 Coliform (TCR)
Absence , sample collected Jan 20, 2026 07:00, sampling point TC0003 E. Coli
Collected
Jan 20, 2026 07:45
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25913
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 20, 2026 07:45, sampling point TC0004 Coliform (TCR)
Absence , sample collected Jan 20, 2026 07:45, sampling point TC0004 E. Coli
Collected
Dec 15, 2025 13:30
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25909
Laboratory
MSDH Lab
Monitoring period
Dec 1, 2025 – Dec 31, 2025
Absence , sample collected Dec 15, 2025 13:30, sampling point TC0002 Coliform (TCR)
Absence , sample collected Dec 15, 2025 13:30, sampling point TC0002 E. Coli
Collected
Dec 15, 2025 14:00
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25910
Laboratory
MSDH Lab
Monitoring period
Dec 1, 2025 – Dec 31, 2025
Absence , sample collected Dec 15, 2025 14:00, sampling point TC0003 Coliform (TCR)
Absence , sample collected Dec 15, 2025 14:00, sampling point TC0003 E. Coli
Collected
Dec 15, 2025 13:00
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25908
Laboratory
MSDH Lab
Monitoring period
Dec 1, 2025 – Dec 31, 2025
Absence , sample collected Dec 15, 2025 13:00, sampling point TC0004 Coliform (TCR)
Absence , sample collected Dec 15, 2025 13:00, sampling point TC0004 E. Coli
Collected
Nov 13, 2025 06:30
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25905
Laboratory
MSDH Lab
Monitoring period
Nov 1, 2025 – Nov 30, 2025
Absence , sample collected Nov 13, 2025 06:30, sampling point TC0002 Coliform (TCR)
Absence , sample collected Nov 13, 2025 06:30, sampling point TC0002 E. Coli
Collected
Nov 13, 2025 07:00
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25906
Laboratory
MSDH Lab
Monitoring period
Nov 1, 2025 – Nov 30, 2025
Absence , sample collected Nov 13, 2025 07:00, sampling point TC0003 Coliform (TCR)
Absence , sample collected Nov 13, 2025 07:00, sampling point TC0003 E. Coli
Collected
Nov 13, 2025 07:30
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-250514-25907
Laboratory
MSDH Lab
Monitoring period
Nov 1, 2025 – Nov 30, 2025
Absence , sample collected Nov 13, 2025 07:30, sampling point TC0004 Coliform (TCR)
Absence , sample collected Nov 13, 2025 07:30, sampling point TC0004 E. Coli