Hendricks County septic permits
Hendricks County runs its onsite sewage program off its own ordinance and publishes the three lists that decide who can work on your system: registered installers, soil scientists and engineers. It also publishes a site plan review checklist, which is the closest thing to a preview of what the county will ask you for.
Who issues a septic permit in Hendricks County?
The Hendricks 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 Hendricks County do differently?
- The county publishes a registered installers list, a soil scientists list and an engineers list, alongside its own onsite sewage systems ordinance. Source: Hendricks County Health Department, Onsite Sewage Disposal, read 2026-08-20.
- It publishes a site plan review checklist and a site plan review tool, and separates residential systems under 410 IAC 6-8.3 from commercial systems under 410 IAC 6-10.1. Source: Hendricks County Health Department, Onsite Sewage Disposal, read 2026-08-20.
- It also posts Indiana Department of Health approval letters for treatment technology, which is what decides whether a product may be used here at all. Source: Hendricks County Health Department, Onsite Sewage Disposal, read 2026-08-20.
Which towns does this cover?
Hendricks County sits in the Indianapolis ring area, with Danville as the county seat. Towns served include Danville, Brownsburg, Pittsboro, North Salem, Amo. 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 Hendricks 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. Hendricks County Health Department.
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Tell us the county and the jobLast reviewed 2026-08-20.