Johnson County, Arkansas
Lamar is a city in Johnson County, Arkansas. Septic permits inside Lamar come from the state health agency. 3 rules below are quoted from official sources and independently re-checked, most recently on November 10, 2026. Rules for unincorporated land are on the Johnson County page.
Lamar 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 systems, including systems serving premises inside Lamar city limits.
“It shall be unlawful for any person, firm, corporation, association, municipality, or governmental agency to begin construction, alteration, repair, or extension of any onsite wastewater system, owned by any other person, firm, corporation, association, municipality or governmental agency until the owner first obtains a valid Permit for Construction issued by the Department or its Authorized Agent.”
Premises inside Lamar city limits where a sanitary sewer is within the stated distance and available for connection.
sanitary sewer distance: <= 300 feet (Measured from the point where the sewer exits a building on the property owner's property; connection must be available without crossing another person's property.)
“All premises shall be connected to a sanitary sewer when within 300 feet from the point where the sewer exits a building on the property owner’s property and available to said premises when connection can be made without crossing another person's property. No privies, onsite wastewater systems or other receptacles for human excreta shall be constructed, maintained, or used on the premises.”
Subdivision plans inside Lamar city limits that propose onsite wastewater systems for any lots or tracts.
“All subdivision plans, which are proposed to utilize standard onsite wastewater systems as a method of wastewater treatment for all or part of the lots or tracts in said subdivision, shall be submitted to the Arkansas Department of Health for review and approval of the overall plan for the utilization of onsite wastewater systems.”
We looked and could not find an official answer yet. Silence is not permission; ask Lamar or Johnson 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 Lamar publishes no rule on the point, not that none exists. Johnson County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Lamar means bringing your own water and power. The kit we’d start with:
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