McLean County, North Dakota
Coleharbor is a city in McLean County, North Dakota. Septic permits inside Coleharbor come from the state health agency. 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 McLean County page.
Coleharbor does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
A person installing an onsite wastewater sewage treatment system on that person's own premises for that person's own use, including inside Coleharbor city limits.
“exempt from the licensing requirements of this chapter”
Onsite wastewater treatment systems inside Coleharbor city limits.
“the department has the exclusive authority to adopt rules”
Construction of a well inside Coleharbor city limits from which more than 12.5 acre-feet of water per year will be appropriated.
annual water appropriation threshold: > 12.5 acre-feet per year (Applies to construction of a well; the statute states separate domestic and other-use exceptions.)
“shall secure a water permit prior to [...] construction of a well from which more than twelve and one-half acre-feet [...] per year will be appropriated.”
We looked and could not find an official answer yet. Silence is not permission; ask Coleharbor or McLean 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 Coleharbor publishes no rule on the point, not that none exists. McLean County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Coleharbor means bringing your own water and power. The kit we’d start with:
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