Sargent County, North Dakota
Cogswell is a city in Sargent County, North Dakota. Septic permits inside Cogswell come from the county and state together. 5 rules below are quoted from official sources and independently re-checked, most recently on November 6, 2026. Rules for unincorporated land are on the Sargent County page.
Cogswell does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Onsite wastewater treatment systems, including systems serving dwellings inside Cogswell city limits.
“the department has the exclusive authority to adopt rules regarding licensing, permitting, and inspections”
Construction, alteration, repair, or extension of an onsite wastewater treatment system serving land inside Cogswell city limits.
permit validity: <= 12 months · public sewer availability distance: <= 200 feet (Permit may be denied unless written documentation indicates denial of connection from the sewer authority.)
“without first obtaining a permit from the permitting authority.”
Off-grid or onsite sanitation serving a dwelling inside Cogswell city limits.
“Water carried from bathrooms, kitchens, laundry fixtures, and other household plumbing must pass through a septic tank or higher level of treatment prior to its discharge into the soil. If underground dispersal for treatment is not feasible, the permitting authority may review alternative methods of collection and disposal.”
A proposed onsite wastewater system serving a home inside Cogswell city limits.
public sewer availability distance: <= 200 feet (Written documentation indicates denial of connection from the sewer authority.)
“The permitting authority may deny a permit for the construction of a system if a public sewer system is available within two hundred feet [60.96 meters] of the property line unless written documentation indicates denial of connection from the sewer authority.”
Onsite wastewater-system permits for work inside Cogswell city limits.
permit validity: <= 12 months
“The permit must be issued by the permitting authority within the jurisdictional limits where the work is being done. The fee for the permit must be set by the permitting authority. The permitting authority shall maintain records of all permits it has issued for the life of the system.”
We looked and could not find an official answer yet. Silence is not permission; ask Cogswell or Sargent 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 Cogswell publishes no rule on the point, not that none exists. Sargent County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Cogswell means bringing your own water and power. The kit we’d start with:
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