Cass County, North Dakota
Grandin is a city in Cass County, North Dakota. Septic permits inside Grandin come from the county and state together. 3 rules below are quoted from official sources and independently re-checked, most recently on November 6, 2026. Rules for unincorporated land are on the Cass County page.
Grandin 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-system installation inside Grandin city limits, subject to the relevant local public health unit's permit authority.
“The North Dakota Department of Environmental Quality oversees the licensing of onsite wastewater treatment system installers under the authority of NDCC 23.1-07.1 . All installers must obtain a license from the department, which is issued at no cost, and secure a permit from their local public health unit before beginning work on a system.”
Onsite wastewater-system installation inside Grandin city limits.
“All installers must obtain a license from the department, which is issued at no cost, and secure a permit from their local public health unit before beginning work on a system.”
Private water wells inside Grandin city limits.
annual withdrawal threshold: > 12.5 acre-feet per year (A Department of Water Resources permit is needed above this threshold.)
“If your well will draw over 12.5 acre-feet (4,073,000 gallons) of water per year, it needs to be permitted by the North Dakota Department of Water Resources (swc.nd.gov | 701-328-2750). A permit is not needed for wells that draw less than 12.5 acre-feet per year.”
We looked and could not find an official answer yet. Silence is not permission; ask Grandin or Cass 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 Grandin publishes no rule on the point, not that none exists. Cass County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Grandin means bringing your own water and power. The kit we’d start with:
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.