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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 results

Each row is one sample, with every result recorded on it.

4,786–4,800 of 92,052 samples. From samples collected October 9, 2024 to October 9, 2026. These dates are applied here by default; they are not a limit on what the agency records. Show 5 years, back to October 9, 2021.

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This page can show a range of up to 5 years at a time. That is a limit of this service, not of what the agency records.

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How to read a result

A coliform result is presence or absence and carries no measured amount.

Coliform and microbial samples across the systems Mississippi State Department of Health serves, 4,786 to 4,800 of 92,052 samples shown. Each row is one sample and the results recorded on it; a coliform result is presence or absence and carries no measured amount. The rows are in the agency’s own order and are not ranked.
County Water system Collected Results Sampling point Sample type Lab sample
Calhoun Town of Derma, MS0070006 August 3, 2026 0 of 2 present TC0009 , Outside Faucet Routine BACT-251208-65511
Calhoun Town of Derma, MS0070006 July 20, 2026 0 of 2 present TC0002 , Outside Faucet Routine BACT-251208-65509
Calhoun Town of Derma, MS0070006 July 20, 2026 0 of 2 present TC0007 , Outside Faucet Routine BACT-251208-65508
Calhoun Town of Derma, MS0070006 June 1, 2026 0 of 2 present TC0008 , Outside Faucet Routine BACT-250801-39276
Calhoun Town of Derma, MS0070006 June 1, 2026 0 of 2 present TC0009 , Outside Faucet Routine BACT-250801-39277
Calhoun Town of Derma, MS0070006 May 19, 2026 0 of 2 present TC0002 , Outside Faucet Routine BACT-250801-39275
Calhoun Town of Derma, MS0070006 April 8, 2026 0 of 2 present TC0009 , Outside Faucet Routine BACT-250801-39273
Calhoun Town of Derma, MS0070006 April 8, 2026 0 of 2 present TC0010 , Outside Faucet Routine BACT-250801-39271
Calhoun Town of Derma, MS0070006 March 11, 2026 0 of 2 present TC0002 , Outside Faucet Routine BACT-250801-39269
Calhoun Town of Derma, MS0070006 March 11, 2026 0 of 2 present TC0010 , Outside Faucet Routine BACT-250801-39270
Calhoun Town of Derma, MS0070006 February 4, 2026 0 of 2 present TC0002 , Outside Faucet Routine BACT-250801-39267
Calhoun Town of Derma, MS0070006 February 4, 2026 0 of 2 present TC0007 , Outside Faucet Routine BACT-250801-39268
Calhoun Town of Derma, MS0070006 January 6, 2026 0 of 2 present TC0003 , Outside Faucet Routine BACT-250801-39265
Calhoun Town of Derma, MS0070006 January 6, 2026 0 of 2 present TC0009 , Outside Faucet Routine BACT-250801-39266
Calhoun Town of Derma, MS0070006 December 16, 2025 0 of 2 present TC0007 , Outside Faucet Routine BACT-250801-39263