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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

MS0760044 , Delta Branch Experiment Sta

2 of 376 results on record were positive for coliform or another organism the agency tests for. The most recent was June 4, 2019.

They fall across 2 of the 285 samples on record.

Every sample on record, October 6, 2003 to July 29, 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 1–15 of 22 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for Delta Branch Experiment Sta, 1 to 15 of 22 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Jul 29, 2026 09:01
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-260730-22426
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 29, 2026 09:01, sampling point DS000 Coliform (TCR)
Absence , sample collected Jul 29, 2026 09:01, sampling point DS000 E. Coli
Collected
Jun 2, 2026 14:25
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-260325-7203
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 2, 2026 14:25, sampling point DS000 Coliform (TCR)
Absence , sample collected Jun 2, 2026 14:25, sampling point DS000 E. Coli
Collected
May 4, 2026 14:35
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-260325-7202
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 4, 2026 14:35, sampling point DS000 Coliform (TCR)
Absence , sample collected May 4, 2026 14:35, sampling point DS000 E. Coli
Collected
Apr 6, 2026 14:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-260325-7201
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 6, 2026 14:15, sampling point DS000 Coliform (TCR)
Absence , sample collected Apr 6, 2026 14:15, sampling point DS000 E. Coli
Collected
Mar 9, 2026 13:25
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-231012-45227
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 9, 2026 13:25, sampling point DS000 Coliform (TCR)
Absence , sample collected Mar 9, 2026 13:25, sampling point DS000 E. Coli
Collected
Feb 11, 2026 15:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-231012-45226
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 11, 2026 15:20, sampling point DS000 Coliform (TCR)
Absence , sample collected Feb 11, 2026 15:20, sampling point DS000 E. Coli
Collected
Jan 6, 2026 14:25
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-231012-45225
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 6, 2026 14:25, sampling point DS000 Coliform (TCR)
Absence , sample collected Jan 6, 2026 14:25, sampling point DS000 E. Coli
Collected
Dec 2, 2025 13:40
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-231012-45224
Laboratory
MSDH Lab
Monitoring period
Dec 1, 2025 – Dec 31, 2025
Absence , sample collected Dec 2, 2025 13:40, sampling point DS000 Coliform (TCR)
Absence , sample collected Dec 2, 2025 13:40, sampling point DS000 E. Coli
Collected
Nov 3, 2025 13:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-231012-45223
Laboratory
MSDH Lab
Monitoring period
Nov 1, 2025 – Nov 30, 2025
Absence , sample collected Nov 3, 2025 13:30, sampling point DS000 Coliform (TCR)
Absence , sample collected Nov 3, 2025 13:30, sampling point DS000 E. Coli
Collected
Oct 1, 2025 13:50
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-231012-45221
Laboratory
MSDH Lab
Monitoring period
Oct 1, 2025 – Oct 31, 2025
Absence , sample collected Oct 1, 2025 13:50, sampling point DS000 Coliform (TCR)
Absence , sample collected Oct 1, 2025 13:50, sampling point DS000 E. Coli
Collected
Sep 2, 2025 13:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-231012-45220
Laboratory
MSDH Lab
Monitoring period
Sep 1, 2025 – Sep 30, 2025
Absence , sample collected Sep 2, 2025 13:45, sampling point DS000 Coliform (TCR)
Absence , sample collected Sep 2, 2025 13:45, sampling point DS000 E. Coli
Collected
Aug 4, 2025 15:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-231012-45219
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2025 – Aug 31, 2025
Absence , sample collected Aug 4, 2025 15:00, sampling point DS000 Coliform (TCR)
Absence , sample collected Aug 4, 2025 15:00, sampling point DS000 E. Coli
Collected
Jul 8, 2025 14:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-231012-45218
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2025 – Jul 31, 2025
Absence , sample collected Jul 8, 2025 14:45, sampling point DS000 Coliform (TCR)
Absence , sample collected Jul 8, 2025 14:45, sampling point DS000 E. Coli
Collected
Jun 2, 2025 14:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-231012-45217
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 2, 2025 14:30, sampling point DS000 Coliform (TCR)
Absence , sample collected Jun 2, 2025 14:30, sampling point DS000 E. Coli
Collected
May 5, 2025 14:50
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
BACT-231012-45216
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 14:50, sampling point DS000 Coliform (TCR)
Absence , sample collected May 5, 2025 14:50, sampling point DS000 E. Coli