Lee County, Illinois
Ashton Township is a township in Lee County, Illinois. Septic permits inside Ashton Township come from the county and state together. 5 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Lee County page.
Ashton Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Septic and private sewage disposal systems on unincorporated land inside Ashton township, Lee County, IL (land outside any incorporated municipality)
“no septic tank, privy vault, sink drain, or sewage disposal system shall be erected, constructed, or repaired in this county, except in accordance with this chapter, and it shall be unlawful to proceed with such work unless a permit has first been obtained from the county board of health; provided, however, that where the connection is to be made to a public sewer, arrangements shall be made with the municipality owning the sewer rather than the county board of health.”
Erecting, constructing, or repairing a septic tank or sewage disposal system on unincorporated land inside Ashton township, Lee County, IL (land outside any incorporated municipality)
“no septic tank, privy vault, sink drain, or sewage disposal system shall be erected, constructed, or repaired in this county, except in accordance with this chapter, and it shall be unlawful to proceed with such work unless a permit has first been obtained from the county board of health”
Alternative septic systems installed on unincorporated land inside Ashton township, Lee County, IL (inspection requirement verified only for alternative systems)
“inspection prior to backfill: all new alternative septic systems must be inspected after installation prior to backfilling.”
Septic (sewage disposal) permit application fees for unincorporated land inside Ashton township, Lee County, IL; building permit fees are not covered
septic tank-only installation permit application fee (contractor-submitted), current: 125 USD (Increases to $150.00 in 2027 and $175.00 in 2030 per the fee table) · septic residential permit application fee (contractor-submitted), current: 225 USD (Increases to $250.00 in 2027 and $275.00 in 2030 per the fee table) · septic commercial permit application fee (contractor-submitted), current: 325 USD (Increases to $350.00 in 2027 and $375.00 in 2030 per the fee table)
“a fee of twice the amount of a contractor-installed residential system must accompany each sewage application submitted by the property owner installing a septic system on their own residential property.”
Septic permit application process for unincorporated land inside Ashton township, Lee County, IL; building permit process not covered
“application for permits under this section shall be in writing and in such form as prescribed by the health authority.”
We looked and could not find an official answer yet. Silence is not permission; ask Ashton Township or Lee 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 Ashton Township publishes no rule on the point, not that none exists. Lee County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Ashton Township means bringing your own water and power. The kit we’d start with:
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