Calhoun County, Mississippi
Town of Derma is a town in Calhoun County, Mississippi. Septic permits inside Town of Derma come from the state health agency. 5 rules below are quoted from official sources and independently re-checked, most recently on November 5, 2026. Rules for unincorporated land are on the Calhoun County page.
Town of Derma does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
On-site wastewater systems serving property inside Derma town limits when public sewer is unavailable.
“If public sewer is not available in your area, you will have to apply to us for the proper paperwork.”
Installation of an on-site wastewater disposal system inside Derma town limits.
“The Permit is required for a water meter and the installation of an on-site wastewater disposal system.”
On-site wastewater systems inside Derma town limits.
“The State does not require the septic be inspected as part of a real estate transaction. However, this could be considered a liability if the system malfunctions after the transaction is completed.”
Off-grid wastewater disposal inside Derma town limits.
“All wastewater is required to pipe into a central sewer system or a septic system for proper disposal. No “gray water” can be discharged on the ground, ditches, or bodies of water.”
Permanent water-meter service for property inside Derma town limits.
“State law requires you have permanent sewage disposal solution available to receive a permanent water meter. Permanent sewage disposal solutions can be a sewer line or septic system.”
We looked and could not find an official answer yet. Silence is not permission; ask Town of Derma or Calhoun County directly.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Unanswered questions are usually a sign that Town of Derma publishes no rule on the point, not that none exists. Calhoun County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Town of Derma means bringing your own water and power. The kit we’d start with:
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