Macon County, Missouri
Elmer is a city in Macon County, Missouri. 3 rules below are quoted from official sources and independently re-checked, most recently on November 5, 2026. Rules for unincorporated land are on the Macon County page.
Elmer does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Installation or repair of most onsite wastewater treatment systems, including systems proposed inside Elmer city limits where state OWTS requirements govern.
“A construction permit is required before installing or repairing most onsite wastewater treatment systems (OWTS).”
Water-well construction or repair inside Elmer city limits.
“A non-restricted water well installation permit is required to construct or repair a water well in Missouri.”
Subdivision or development inside Elmer city limits where onsite wastewater treatment is planned.
“Anyone subdividing or developing property must comply with DNR residential development regulations as well as the onsite sewage law.”
We looked and could not find an official answer yet. Silence is not permission; ask Elmer or Macon 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 Elmer publishes no rule on the point, not that none exists. Macon County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Elmer means bringing your own water and power. The kit we’d start with:
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