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Septic Indiana

Boone County septic permits

Boone County writes its process down step by step, and the step most people have not heard of is the letter of requirements: once your application, floor plans, soil report and fee are on file, the county mails a letter setting out what your system has to be. It also runs its own installer permit under its own ordinance.

Who issues a septic permit in Boone County?

The Boone County Health Department. Under the state rule the owner or the owner's agent has to obtain a written construction permit signed by the health officer before the work starts, and in Indiana that health officer is the county's, not the state's.

Source: 410 IAC 6-8.3-53(a), Indiana Administrative Code, read 2026-08-20.

What does Boone County do differently?

  • After the completed application, floor plans, soil report and application fee are on file, the county mails a letter of requirements to the person named on the septic application. Source: Boone County Health Department, Waste Water, read 2026-08-20.
  • The county has an onsite sewage system installers ordinance and a septic installer permit application, so being allowed to install here is a county matter with its own paperwork. Source: Boone County Health Department, Waste Water, read 2026-08-20.
  • Sizing follows bedroom equivalents multiplied by 150 gallons per day per bedroom and divided by the soil loading rate, which a registered soil scientist determines during a site inspection. Source: Boone County Health Department, Waste Water, read 2026-08-20.
  • The office maintains lists of local soil scientists and of onsite sewage system installers, available online or by request. Source: Boone County Health Department, Waste Water, read 2026-08-20.

Which towns does this cover?

Boone County sits in the Indianapolis ring area, with Lebanon as the county seat. Towns served include Lebanon, Thorntown, Advance, Jamestown, Ulen. Anywhere in the county that is not on a sanitary sewer is on a system this page applies to.

Who can legally do the work here?

Indiana has no state septic installer license, so the answer is set by this county. Many Indiana counties require an IOWPA certificate, and some run their own installer permit and exam. Check with the Boone County Health Department before you sign anything, because the requirement is different one county over.

How Indiana county installer requirements work

Source: Indiana Professional Licensing Agency, professions list, read 2026-08-20.

What comes before the application?

Before any construction permit is issued, and before a soil absorption system is replaced or altered, an on-site evaluation including a description of the soil profile has to be conducted. The soil is described by a soil scientist using NRCS guidelines, and the profile is recorded to a depth of five feet or until a layer is reached that cannot be read.

So the first call is usually a soil scientist, not a contractor with a machine. See the soil evaluation and the application sequence.

Source: 410 IAC 6-8.3-56(a) to (c), read 2026-08-20.

The county's own page

Fees, forms and lists change without notice, and the county is the only current source. Boone County Health Department.

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Your request goes to an independent local septic contractor serving your Indiana county, not a national lead list.

Tell us the county and the job

Last reviewed 2026-08-20.

(317) 978-3952