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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

MS0240263 , West Harrison High School

1 of 571 results on record was positive for coliform or another organism the agency tests for. The most recent was November 6, 2017.

They fall across 1 of the 396 samples on record.

Every sample on record, August 12, 2009 to August 5, 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 46 samples in this date range, newest first.

Routine (15).

Coliform and microbial sample results for West Harrison High School, 1 to 15 of 46 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Aug 5, 2026 12:00
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-51329
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2026 – Aug 31, 2026
Absence , sample collected Aug 5, 2026 12:00, sampling point TC0002 Coliform (TCR)
Absence , sample collected Aug 5, 2026 12:00, sampling point TC0002 E. Coli
Collected
Aug 5, 2026 12:13
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-51330
Laboratory
MSDH Lab
Monitoring period
Aug 1, 2026 – Aug 31, 2026
Absence , sample collected Aug 5, 2026 12:13, sampling point TC0004 Coliform (TCR)
Absence , sample collected Aug 5, 2026 12:13, sampling point TC0004 E. Coli
Collected
Jul 8, 2026 13:10
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-51327
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 8, 2026 13:10, sampling point TC0001 Coliform (TCR)
Absence , sample collected Jul 8, 2026 13:10, sampling point TC0001 E. Coli
Collected
Jul 8, 2026 13:25
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-251001-51328
Laboratory
MSDH Lab
Monitoring period
Jul 1, 2026 – Jul 31, 2026
Absence , sample collected Jul 8, 2026 13:25, sampling point TC0004 Coliform (TCR)
Absence , sample collected Jul 8, 2026 13:25, sampling point TC0004 E. Coli
Collected
Jun 3, 2026 13:10
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-240808-30245
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 3, 2026 13:10, sampling point TC0002 Coliform (TCR)
Absence , sample collected Jun 3, 2026 13:10, sampling point TC0002 E. Coli
Collected
Jun 3, 2026 13:21
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-240808-30244
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2026 – Jun 30, 2026
Absence , sample collected Jun 3, 2026 13:21, sampling point TC0004 Coliform (TCR)
Absence , sample collected Jun 3, 2026 13:21, sampling point TC0004 E. Coli
Collected
May 13, 2026 12:05
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-240808-30247
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 13, 2026 12:05, sampling point TC0002 Coliform (TCR)
Absence , sample collected May 13, 2026 12:05, sampling point TC0002 E. Coli
Collected
May 13, 2026 12:18
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-240808-30246
Laboratory
MSDH Lab
Monitoring period
May 1, 2026 – May 31, 2026
Absence , sample collected May 13, 2026 12:18, sampling point TC0004 Coliform (TCR)
Absence , sample collected May 13, 2026 12:18, sampling point TC0004 E. Coli
Collected
Apr 13, 2026 13:00
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-240808-30249
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 13, 2026 13:00, sampling point TC0002 Coliform (TCR)
Absence , sample collected Apr 13, 2026 13:00, sampling point TC0002 E. Coli
Collected
Apr 13, 2026 13:12
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-240808-30248
Laboratory
MSDH Lab
Monitoring period
Apr 1, 2026 – Apr 30, 2026
Absence , sample collected Apr 13, 2026 13:12, sampling point TC0004 Coliform (TCR)
Absence , sample collected Apr 13, 2026 13:12, sampling point TC0004 E. Coli
Collected
Mar 4, 2026 11:36
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-240808-30251
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 4, 2026 11:36, sampling point TC0002 Coliform (TCR)
Absence , sample collected Mar 4, 2026 11:36, sampling point TC0002 E. Coli
Collected
Mar 4, 2026 11:45
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-240808-30250
Laboratory
MSDH Lab
Monitoring period
Mar 1, 2026 – Mar 31, 2026
Absence , sample collected Mar 4, 2026 11:45, sampling point TC0004 Coliform (TCR)
Absence , sample collected Mar 4, 2026 11:45, sampling point TC0004 E. Coli
Collected
Feb 4, 2026 13:08
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-240808-30253
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 4, 2026 13:08, sampling point TC0002 Coliform (TCR)
Absence , sample collected Feb 4, 2026 13:08, sampling point TC0002 E. Coli
Collected
Feb 4, 2026 13:20
Sampling point
TC0004 Outside Faucet
Sample type
Routine
Lab sample
BACT-240808-30252
Laboratory
MSDH Lab
Monitoring period
Feb 1, 2026 – Feb 28, 2026
Absence , sample collected Feb 4, 2026 13:20, sampling point TC0004 Coliform (TCR)
Absence , sample collected Feb 4, 2026 13:20, sampling point TC0004 E. Coli
Collected
Jan 7, 2026 14:55
Sampling point
TC0002 Outside Faucet
Sample type
Routine
Lab sample
BACT-240808-30235
Laboratory
MSDH Lab
Monitoring period
Jan 1, 2026 – Jan 31, 2026
Absence , sample collected Jan 7, 2026 14:55, sampling point TC0002 Coliform (TCR)
Absence , sample collected Jan 7, 2026 14:55, sampling point TC0002 E. Coli