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
MS0610023 , City of Richland
6 of 2,864 results on record were positive for coliform or another organism the agency tests for. The most recent was August 10, 2023.
They fall across 5 of the 2,153 samples on record.
Every sample on record, October 3, 2003 to August 17, 2026. These figures cover the whole record; the list of samples further down is narrowed.
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.
Choose a date range
The list below shows 16–30 of 184 samples in this date range, newest first.
Routine (15).
| Result | Organism |
|---|---|
|
|
| Absence , sample collected Jul 13, 2026 10:40, sampling point TC0011 | Coliform (TCR) |
| Absence , sample collected Jul 13, 2026 10:40, sampling point TC0011 | E. Coli |
|
|
| Absence , sample collected Jun 11, 2026 09:00, sampling point TC0002 | Coliform (TCR) |
| Absence , sample collected Jun 11, 2026 09:00, sampling point TC0002 | E. Coli |
|
|
| Absence , sample collected Jun 11, 2026 09:20, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected Jun 11, 2026 09:20, sampling point TC0004 | E. Coli |
|
|
| Absence , sample collected Jun 11, 2026 10:00, sampling point TC0008 | Coliform (TCR) |
| Absence , sample collected Jun 11, 2026 10:00, sampling point TC0008 | E. Coli |
|
|
| Absence , sample collected Jun 11, 2026 09:40, sampling point TC0014 | Coliform (TCR) |
| Absence , sample collected Jun 11, 2026 09:40, sampling point TC0014 | E. Coli |
|
|
| Absence , sample collected Jun 10, 2026 11:00, sampling point TC0001 | Coliform (TCR) |
| Absence , sample collected Jun 10, 2026 11:00, sampling point TC0001 | E. Coli |
|
|
| Absence , sample collected Jun 10, 2026 10:00, sampling point TC0009 | Coliform (TCR) |
| Absence , sample collected Jun 10, 2026 10:00, sampling point TC0009 | E. Coli |
|
|
| Absence , sample collected Jun 10, 2026 10:40, sampling point TC0011 | Coliform (TCR) |
| Absence , sample collected Jun 10, 2026 10:40, sampling point TC0011 | E. Coli |
|
|
| Absence , sample collected Jun 10, 2026 10:20, sampling point TC0012 | Coliform (TCR) |
| Absence , sample collected Jun 10, 2026 10:20, sampling point TC0012 | E. Coli |
|
|
| Absence , sample collected May 13, 2026 09:00, sampling point TC0001 | Coliform (TCR) |
| Absence , sample collected May 13, 2026 09:00, sampling point TC0001 | E. Coli |
|
|
| Absence , sample collected May 13, 2026 09:20, sampling point TC0007 | Coliform (TCR) |
| Absence , sample collected May 13, 2026 09:20, sampling point TC0007 | E. Coli |
|
|
| Absence , sample collected May 13, 2026 10:00, sampling point TC0012 | Coliform (TCR) |
| Absence , sample collected May 13, 2026 10:00, sampling point TC0012 | E. Coli |
|
|
| Absence , sample collected May 13, 2026 09:40, sampling point TC0014 | Coliform (TCR) |
| Absence , sample collected May 13, 2026 09:40, sampling point TC0014 | E. Coli |
|
|
| Absence , sample collected May 12, 2026 09:40, sampling point TC0002 | Coliform (TCR) |
| Absence , sample collected May 12, 2026 09:40, sampling point TC0002 | E. Coli |
|
|
| Absence , sample collected May 12, 2026 09:20, sampling point TC0004 | Coliform (TCR) |
| Absence , sample collected May 12, 2026 09:20, sampling point TC0004 | E. Coli |
-
- Collected
- Jul 13, 2026 10:40
- Sampling point
- TC0011 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45133
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2026 – Jul 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 11, 2026 09:00
- Sampling point
- TC0002 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45221
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 11, 2026 09:20
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45222
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 11, 2026 10:00
- Sampling point
- TC0008 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45224
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 11, 2026 09:40
- Sampling point
- TC0014 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45223
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 10, 2026 11:00
- Sampling point
- TC0001 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45220
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 10, 2026 10:00
- Sampling point
- TC0009 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45217
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 10, 2026 10:40
- Sampling point
- TC0011 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45219
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- Jun 10, 2026 10:20
- Sampling point
- TC0012 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45218
- Laboratory
- MSDH Lab
- Monitoring period
- Jun 1, 2026 – Jun 30, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- May 13, 2026 09:00
- Sampling point
- TC0001 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45213
- Laboratory
- MSDH Lab
- Monitoring period
- May 1, 2026 – May 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- May 13, 2026 09:20
- Sampling point
- TC0007 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45214
- Laboratory
- MSDH Lab
- Monitoring period
- May 1, 2026 – May 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- May 13, 2026 10:00
- Sampling point
- TC0012 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45216
- Laboratory
- MSDH Lab
- Monitoring period
- May 1, 2026 – May 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- May 13, 2026 09:40
- Sampling point
- TC0014 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45215
- Laboratory
- MSDH Lab
- Monitoring period
- May 1, 2026 – May 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- May 12, 2026 09:40
- Sampling point
- TC0002 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45211
- Laboratory
- MSDH Lab
- Monitoring period
- May 1, 2026 – May 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli
-
- Collected
- May 12, 2026 09:20
- Sampling point
- TC0004 Outside Faucet
- Sample type
- Routine
- Lab sample
- BACT-241230-45210
- Laboratory
- MSDH Lab
- Monitoring period
- May 1, 2026 – May 31, 2026
-
- Result
- Absence
- Organism
- Coliform (TCR)
-
- Result
- Absence
- Organism
- E. Coli