Bolthole Index

Marion County, Illinois

Zoning, building permits and septic rules in Foster Township, 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.

Answers from the rulebook for Foster Township

Rules another office applies inside Foster Township

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.

  • Who permits septicLocal (with conditions)

    Private sewage systems serving property inside Foster Township; Foster Township is listed by Marion County as a Marion County township.

    • Applies to private sewage disposal systems used where property is not connected to a public sewer system.
    • Systems are subject to state and local codes.
    “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.”
  • Septic inspectionRequired

    Installation of private sewage systems serving property inside Foster Township.

    • The local health department performs inspections during installation.
    • Signing the plan-review application authorizes Marion County Health Department entry to inspect the system.
    “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.”
  • Well permitRequired

    Installation of a private water well inside Foster Township.

    • An Illinois Department of Public Health application and a $100 application fee payable to IDPH must be submitted before installation.
    • Permit issuance is conditional on meeting Illinois Water Well Construction Code requirements.
    • Applicant must give the Division of Environmental Health 48-hour notice before installation.

    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.”
  • Permit feesPublished (with conditions)

    Marion County Health Department environmental-health permits serving property inside Foster Township.

    • The published amounts cover listed new-well, existing-well/testing, septic new/replacement, septic inspection, and water inspection items; they do not establish a general township building-permit fee.

    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”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Foster Township or Marion County directly.

  • Building permit — Residential construction inside Foster Township.
  • Owner-builder exemption — Owner-built residential construction inside Foster Township.
  • Building code adopted — Residential construction inside Foster Township.
  • Inspections — Residential building construction inside Foster Township.
  • Certificate of occupancy — Residential occupancy inside Foster Township.
18 more unanswered
  • Local zoning
  • Zoning districts
  • Minimum dwelling size
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Building in a floodplain
  • Short-term rentals

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.

← All of Marion County: county rules, score and offices