Zoning, building permits and septic rules in Wilson Township, Illinois

Rules another office applies inside Wilson Township

Wilson 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 septicMixed (with conditions)

  Private sewage systems inside Wilson Township, which is within DeWitt County.

  • The DeWitt County code requires a permit issued by the Health Department; state IDPH requirements also govern the program.

  “It shall be unlawful for any person to construct, alter, or extend individual sewage disposal systems within DeWitt County unless he or she holds a valid permit issued by the Health Department stating the name of such person for whom the specific construction, alteration or extension is proposed.”

• Septic permitRequired

  Construction, alteration, or extension of an individual sewage disposal system inside Wilson Township.

  • A valid Health Department permit is required before construction, alteration, or extension.

  “It shall be unlawful for any person to construct, alter, or extend individual sewage disposal systems within DeWitt County unless he or she holds a valid permit issued by the Health Department stating the name of such person for whom the specific construction, alteration or extension is proposed.”

• Septic inspectionRequired

  Private sewage systems serving residential property inside Wilson Township.

  • Residential systems must be evaluated within three years after installation and every five years thereafter; aerobic-treatment units have more frequent evaluation and service intervals.

  “In order to comply with IDPH Regulations, private sewage systems serving residential properties shall be evaluated within three (3) years of installation and every five (5) years after the initial evaluation.”

• Well permitRequired

  Water-well construction or deepening inside Wilson Township.

  • A permit is not required for a well serving a community public water system or functioning as a monitoring well.

  “No water well shall be constructed or deepened except in accordance with this Ordinance, and it shall be unlawful to proceed with such work unless a permit has first been obtained from the Health Authority.”

• Mandatory utility hookupWater (with conditions)

  Drinking and culinary water supply for property inside Wilson Township.

  • Public water is reasonably available when the property is within 200 feet of a public water supply to which connection is practical and permitted by the controlling authority.

  public-water availability distance: <= 200 feet (Connection must be practical and permitted by the controlling authority.)

  “In those locations where a public water supply is reasonably available, that supply shall be the sole source of water for drinking and culinary purposes. A public water supply shall be deemed reasonably available when the subject property is located within 200 feet of the public water supply to which connection is practical and is permitted by the controlling authority for said water supply.”

• Permit feesPublished (with conditions)

  Private sewage and water-program permit applications inside Wilson Township.

  • Fees shown are Health Department program fees, not a complete Township building-permit fee schedule.

  licensed-contractor sewage application fee: 150 USD · homeowner sewage installation application fee: 200 USD · water application fee: 100 USD

  “sewage program fees application fee licensed contractor............................................................................ $150.00 homeowner installation..................................................................... $200.00 modification of an existing septic system (<50% modified)................ $75.00 water program fees application fee................................................................................... $100.00”

Still unanswered

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

• Owner-builder exemption — Owner-built residential construction inside Wilson Township.
• Building code adopted — Building-code adoption for construction inside Wilson Township.
• Inspections — Building inspections inside Wilson Township.
• Camping on your land — Temporary camping on private land inside Wilson Township.
• Tiny homes — Tiny-home occupancy inside Wilson Township.

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.