Marion County, Illinois
Foster Township is a township in Marion County, Illinois. Septic permits inside Foster Township come from Foster Township. 4 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Marion County page.
Foster Township 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 systems serving property inside Foster Township; Foster Township is listed by Marion County as a Marion County township.
“The local health department works to protect public health and the environment by reviewing and approving system designs, issuing permits, and performing inspections during installation to ensure compliance with state and local codes.”
Installation of private sewage systems serving property inside Foster Township.
“The local health department works to protect public health and the environment by reviewing and approving system designs, issuing permits, and performing inspections during installation to ensure compliance with state and local codes.”
Installation of a private water well inside Foster Township.
IDPH water-well application fee: 100 USD (payable to the Illinois Department of Public Health)
“Before a private water well can be installed, Illinois Department of Public Health, Application for Permit to Construct, Modify or Abandon a Water Well and the $100.00 application fee payable to the Illinois Department of Public Health must be submitted.”
Marion County Health Department environmental-health permits serving property inside Foster Township.
new well permit: 100 USD · septic new/replacement permit: 75 USD · septic reality inspection: 75 USD · water reality inspection: 75 USD
“Water Permits | | New Well | $100.00 | Existing Well/Testing | $25.00 Septic Permit | | New/Replacement | $75.00 Reality Inspection | | Septic | $75.00 | Water | $75.00”
We looked and could not find an official answer yet. Silence is not permission; ask Foster Township or Marion 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 Foster Township publishes no rule on the point, not that none exists. Marion County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Foster Township means bringing your own water and power. The kit we’d start with:
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