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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

MS0620010 , Sebastopol Water Association

8 of 2,407 results on record were positive for coliform or another organism the agency tests for. The most recent was August 13, 2019.

They fall across 8 of the 1,762 samples on record.

Every sample on record, October 9, 2003 to August 11, 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 61–75 of 161 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for Sebastopol Water Association, 61 to 75 of 161 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Dec 1, 2025 13:30
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12265
Laboratory
MSDH Lab
Monitoring period
Dec 1, 2025 – Dec 31, 2025
Absence , sample collected Dec 1, 2025 13:30, sampling point TC0005 Coliform (TCR)
Absence , sample collected Dec 1, 2025 13:30, sampling point TC0005 E. Coli
Collected
Dec 1, 2025 13:45
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12264
Laboratory
MSDH Lab
Monitoring period
Dec 1, 2025 – Dec 31, 2025
Absence , sample collected Dec 1, 2025 13:45, sampling point TC0007 Coliform (TCR)
Absence , sample collected Dec 1, 2025 13:45, sampling point TC0007 E. Coli
Collected
Dec 1, 2025 14:00
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12263
Laboratory
MSDH Lab
Monitoring period
Dec 1, 2025 – Dec 31, 2025
Absence , sample collected Dec 1, 2025 14:00, sampling point TC0008 Coliform (TCR)
Absence , sample collected Dec 1, 2025 14:00, sampling point TC0008 E. Coli
Collected
Nov 25, 2025 13:00
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12257
Laboratory
MSDH Lab
Monitoring period
Nov 1, 2025 – Nov 30, 2025
Absence , sample collected Nov 25, 2025 13:00, sampling point TC0009 Coliform (TCR)
Absence , sample collected Nov 25, 2025 13:00, sampling point TC0009 E. Coli
Collected
Nov 25, 2025 13:15
Sampling point
TC0010 Distribution DS000
Sample type
Routine
Lab sample
BACT-250306-12256
Laboratory
MSDH Lab
Monitoring period
Nov 1, 2025 – Nov 30, 2025
Absence , sample collected Nov 25, 2025 13:15, sampling point TC0010 Coliform (TCR)
Absence , sample collected Nov 25, 2025 13:15, sampling point TC0010 E. Coli
Collected
Nov 24, 2025 13:00
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12262
Laboratory
MSDH Lab
Monitoring period
Nov 1, 2025 – Nov 30, 2025
Absence , sample collected Nov 24, 2025 13:00, sampling point TC0001 Coliform (TCR)
Absence , sample collected Nov 24, 2025 13:00, sampling point TC0001 E. Coli
Collected
Nov 24, 2025 13:15
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12261
Laboratory
MSDH Lab
Monitoring period
Nov 1, 2025 – Nov 30, 2025
Absence , sample collected Nov 24, 2025 13:15, sampling point TC0003 Coliform (TCR)
Absence , sample collected Nov 24, 2025 13:15, sampling point TC0003 E. Coli
Collected
Nov 24, 2025 13:30
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12260
Laboratory
MSDH Lab
Monitoring period
Nov 1, 2025 – Nov 30, 2025
Absence , sample collected Nov 24, 2025 13:30, sampling point TC0005 Coliform (TCR)
Absence , sample collected Nov 24, 2025 13:30, sampling point TC0005 E. Coli
Collected
Nov 24, 2025 13:45
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12259
Laboratory
MSDH Lab
Monitoring period
Nov 1, 2025 – Nov 30, 2025
Absence , sample collected Nov 24, 2025 13:45, sampling point TC0007 Coliform (TCR)
Absence , sample collected Nov 24, 2025 13:45, sampling point TC0007 E. Coli
Collected
Nov 24, 2025 14:00
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12258
Laboratory
MSDH Lab
Monitoring period
Nov 1, 2025 – Nov 30, 2025
Absence , sample collected Nov 24, 2025 14:00, sampling point TC0008 Coliform (TCR)
Absence , sample collected Nov 24, 2025 14:00, sampling point TC0008 E. Coli
Collected
Oct 7, 2025 13:00
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12250
Laboratory
MSDH Lab
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 7, 2025 13:00, sampling point TC0009 Coliform (TCR)
Absence , sample collected Oct 7, 2025 13:00, sampling point TC0009 E. Coli
Collected
Oct 7, 2025 13:15
Sampling point
TC0010 Distribution DS000
Sample type
Routine
Lab sample
BACT-250306-12249
Laboratory
MSDH Lab
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 7, 2025 13:15, sampling point TC0010 Coliform (TCR)
Absence , sample collected Oct 7, 2025 13:15, sampling point TC0010 E. Coli
Collected
Oct 6, 2025 13:00
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12255
Laboratory
MSDH Lab
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 6, 2025 13:00, sampling point TC0001 Coliform (TCR)
Absence , sample collected Oct 6, 2025 13:00, sampling point TC0001 E. Coli
Collected
Oct 6, 2025 13:15
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12254
Laboratory
MSDH Lab
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 6, 2025 13:15, sampling point TC0003 Coliform (TCR)
Absence , sample collected Oct 6, 2025 13:15, sampling point TC0003 E. Coli
Collected
Oct 6, 2025 13:30
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12253
Laboratory
MSDH Lab
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 6, 2025 13:30, sampling point TC0005 Coliform (TCR)
Absence , sample collected Oct 6, 2025 13:30, sampling point TC0005 E. Coli