Coles County, Illinois
Village of Lerna is a village in Coles County, Illinois. Septic permits inside Village of Lerna come from Coles County (Coles County Health Department Sewage Program). 3 rules below are quoted from official sources and independently re-checked, most recently on November 2, 2026. Rules for unincorporated land are on the Coles County page.
Village of Lerna does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Private sewage disposal systems for land inside Lerna village limits, where a public sewer is not available; administered by the Coles County Health Department, which the county states covers all private sewage systems in the county
“the sewage program is responsible for approving plans for all private sewage disposal systems, conducting on site inspections, final inspections, and complaint investigations as they are received.”
Construction, alteration or extension of a private sewage disposal system on land inside Lerna village limits (county-administered permit)
“it shall be unlawful for any person to construct, alter, or extend a private sewage disposal system within coles county unless he holds a valid permit issued by the coles county health department”
Private sewage disposal system installed inside Lerna village limits (county-administered inspections)
“section 8.4 of the coles county private sewage disposal system ordinance prohibits backfilling any portion of a private sewage disposal system prior to being inspected. if any portion is covered, you will be required to uncover that portion.”
We looked and could not find an official answer yet. Silence is not permission; ask Village of Lerna or Coles 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 Village of Lerna publishes no rule on the point, not that none exists. Coles County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Village of Lerna means bringing your own water and power. The kit we’d start with:
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