Johnson County septic permits
Johnson County keeps its septic fees in a numbered ordinance rather than on a web page, and it publishes a list of registered and certified septic contractors. If you want to know what the work will cost you in fees before you apply, the fee schedule ordinance is the document to ask for by name.
Who issues a septic permit in Johnson County?
The Johnson 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 Johnson County do differently?
- The county publishes its septic fees as a fee schedule ordinance, 2026-O-1, rather than as a page of numbers. Source: Johnson County Health Department, Onsite Septic, read 2026-08-20.
- It publishes a list of registered and certified septic contractors, and a roster of Indiana registered soil scientists. Source: Johnson County Health Department, Onsite Septic, read 2026-08-20.
- It publishes a protocol for onsite sewage system abandonment, which matters when a property is being connected to a sewer or a system is being replaced. Source: Johnson County Health Department, Onsite Septic, read 2026-08-20.
Which towns does this cover?
Johnson County sits in the Indianapolis ring area, with Franklin as the county seat. Towns served include Franklin, Trafalgar, Nineveh, Edinburgh, Bargersville. 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 Johnson 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. Johnson County Health Department.
Get matched with a septic contractor in Johnson County
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Tell us the county and the jobLast reviewed 2026-08-20.