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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 91–105 of 161 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for Sebastopol Water Association, 91 to 105 of 161 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Aug 4, 2025 14:00
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12237
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 4, 2025 14:00, sampling point TC0008 Coliform (TCR)
Absence , sample collected Aug 4, 2025 14:00, sampling point TC0008 E. Coli
Collected
Jul 15, 2025 13:00
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12228
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 15, 2025 13:00, sampling point TC0009 Coliform (TCR)
Absence , sample collected Jul 15, 2025 13:00, sampling point TC0009 E. Coli
Collected
Jul 15, 2025 13:15
Sampling point
TC0010 Distribution DS000
Sample type
Routine
Lab sample
BACT-250306-12227
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 15, 2025 13:15, sampling point TC0010 Coliform (TCR)
Absence , sample collected Jul 15, 2025 13:15, sampling point TC0010 E. Coli
Collected
Jul 14, 2025 13:00
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12224
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 14, 2025 13:00, sampling point TC0001 Coliform (TCR)
Absence , sample collected Jul 14, 2025 13:00, sampling point TC0001 E. Coli
Collected
Jul 14, 2025 13:15
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12223
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 14, 2025 13:15, sampling point TC0003 Coliform (TCR)
Absence , sample collected Jul 14, 2025 13:15, sampling point TC0003 E. Coli
Collected
Jul 14, 2025 13:30
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12222
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 14, 2025 13:30, sampling point TC0005 Coliform (TCR)
Absence , sample collected Jul 14, 2025 13:30, sampling point TC0005 E. Coli
Collected
Jul 14, 2025 13:45
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12221
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 14, 2025 13:45, sampling point TC0007 Coliform (TCR)
Absence , sample collected Jul 14, 2025 13:45, sampling point TC0007 E. Coli
Collected
Jul 14, 2025 14:00
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12229
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 14, 2025 14:00, sampling point TC0008 Coliform (TCR)
Absence , sample collected Jul 14, 2025 14:00, sampling point TC0008 E. Coli
Collected
Jun 3, 2025 13:00
Sampling point
TC0009 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12231
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 3, 2025 13:00, sampling point TC0009 Coliform (TCR)
Absence , sample collected Jun 3, 2025 13:00, sampling point TC0009 E. Coli
Collected
Jun 3, 2025 13:15
Sampling point
TC0010 Distribution DS000
Sample type
Routine
Lab sample
BACT-250306-12230
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 3, 2025 13:15, sampling point TC0010 Coliform (TCR)
Absence , sample collected Jun 3, 2025 13:15, sampling point TC0010 E. Coli
Collected
Jun 2, 2025 13:00
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12236
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 13:00, sampling point TC0001 Coliform (TCR)
Absence , sample collected Jun 2, 2025 13:00, sampling point TC0001 E. Coli
Collected
Jun 2, 2025 13:15
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12235
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 13:15, sampling point TC0003 Coliform (TCR)
Absence , sample collected Jun 2, 2025 13:15, sampling point TC0003 E. Coli
Collected
Jun 2, 2025 13:30
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12234
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 13:30, sampling point TC0005 Coliform (TCR)
Absence , sample collected Jun 2, 2025 13:30, sampling point TC0005 E. Coli
Collected
Jun 2, 2025 13:45
Sampling point
TC0007 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12233
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 13:45, sampling point TC0007 Coliform (TCR)
Absence , sample collected Jun 2, 2025 13:45, sampling point TC0007 E. Coli
Collected
Jun 2, 2025 14:00
Sampling point
TC0008 Outside Faucet
Sample type
Routine
Lab sample
BACT-250306-12232
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 14:00, sampling point TC0008 Coliform (TCR)
Absence , sample collected Jun 2, 2025 14:00, sampling point TC0008 E. Coli