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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

MS0450010 , City of Madison

10 of 5,233 results on record were positive for coliform or another organism the agency tests for. The most recent was April 5, 2021.

They fall across 10 of the 3,897 samples on record.

Every sample on record, October 13, 2003 to August 4, 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 226–240 of 3,897 samples on record, newest first.

Routine (15).

Coliform and microbial sample results for City of Madison, 226 to 240 of 3,897 samples shown, newest first. A result is a presence-or-absence verdict and carries no measured amount.
Result Organism
Collected
Jun 4, 2025 07:35
Sampling point
TC0029 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24189
Laboratory
MSDH Lab
Monitoring period
Jun 1, 2025 – Jun 30, 2025
Absence , sample collected Jun 4, 2025 07:35, sampling point TC0029 Coliform (TCR)
Absence , sample collected Jun 4, 2025 07:35, sampling point TC0029 E. Coli
Collected
May 7, 2025 12:25
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24173
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 7, 2025 12:25, sampling point TC0001 Coliform (TCR)
Absence , sample collected May 7, 2025 12:25, sampling point TC0001 E. Coli
Collected
May 7, 2025 10:45
Sampling point
TC0010 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24177
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 7, 2025 10:45, sampling point TC0010 Coliform (TCR)
Absence , sample collected May 7, 2025 10:45, sampling point TC0010 E. Coli
Collected
May 7, 2025 10:25
Sampling point
TC0012 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24178
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 7, 2025 10:25, sampling point TC0012 Coliform (TCR)
Absence , sample collected May 7, 2025 10:25, sampling point TC0012 E. Coli
Collected
May 7, 2025 11:25
Sampling point
TC0013 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24175
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 7, 2025 11:25, sampling point TC0013 Coliform (TCR)
Absence , sample collected May 7, 2025 11:25, sampling point TC0013 E. Coli
Collected
May 7, 2025 13:10
Sampling point
TC0015 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24172
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 7, 2025 13:10, sampling point TC0015 Coliform (TCR)
Absence , sample collected May 7, 2025 13:10, sampling point TC0015 E. Coli
Collected
May 7, 2025 13:30
Sampling point
TC0016 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24191
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 7, 2025 13:30, sampling point TC0016 Coliform (TCR)
Absence , sample collected May 7, 2025 13:30, sampling point TC0016 E. Coli
Collected
May 7, 2025 11:55
Sampling point
TC0020 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24174
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 7, 2025 11:55, sampling point TC0020 Coliform (TCR)
Absence , sample collected May 7, 2025 11:55, sampling point TC0020 E. Coli
Collected
May 7, 2025 11:00
Sampling point
TC0029 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24176
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 7, 2025 11:00, sampling point TC0029 Coliform (TCR)
Absence , sample collected May 7, 2025 11:00, sampling point TC0029 E. Coli
Collected
May 5, 2025 14:00
Sampling point
TC0003 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24210
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 14:00, sampling point TC0003 Coliform (TCR)
Absence , sample collected May 5, 2025 14:00, sampling point TC0003 E. Coli
Collected
May 5, 2025 14:25
Sampling point
TC0005 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24205
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 14:25, sampling point TC0005 Coliform (TCR)
Absence , sample collected May 5, 2025 14:25, sampling point TC0005 E. Coli
Collected
May 5, 2025 14:15
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24206
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 14:15, sampling point TC0006 Coliform (TCR)
Absence , sample collected May 5, 2025 14:15, sampling point TC0006 E. Coli
Collected
May 5, 2025 14:35
Sampling point
TC0018 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24211
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 14:35, sampling point TC0018 Coliform (TCR)
Absence , sample collected May 5, 2025 14:35, sampling point TC0018 E. Coli
Collected
May 5, 2025 13:55
Sampling point
TC0026 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24208
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 13:55, sampling point TC0026 Coliform (TCR)
Absence , sample collected May 5, 2025 13:55, sampling point TC0026 E. Coli
Collected
May 5, 2025 13:50
Sampling point
TC0027 Outside Faucet
Sample type
Routine
Lab sample
BACT-240529-24209
Laboratory
MSDH Lab
Monitoring period
May 1, 2025 – May 31, 2025
Absence , sample collected May 5, 2025 13:50, sampling point TC0027 Coliform (TCR)
Absence , sample collected May 5, 2025 13:50, sampling point TC0027 E. Coli