A marketing service, not a licensed contractor. Septic work is performed by independent local contractors.
Septic Indiana

Septic design and soil evaluation in Indiana

This is the work that has to happen before a county will consider a permit, and it is usually the first thing a homeowner pays for. A soil scientist describes the soil profile on the property, recorded to five feet or until a layer that cannot be read, using federal NRCS guidelines. A designer then sizes and lays out a system that profile can support. The county reviews the two together.

Where does the county come into septic design and soil evaluation?

Before any construction permit is issued, an on-site evaluation including a soil profile description has to be conducted, and the soil is described by a soil scientist.

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

When do you need this?

  • Any new system.
  • Any replacement or alteration of the soil absorption field.
  • Due diligence before buying an unsewered lot.
  • An addition that may add a bedroom.

What drives the price?

  • How many borings or pits the site needs.
  • Lot size and access.
  • Whether the design is conventional or engineered.
  • Whether a second location has to be evaluated after the first fails.

We do not print a price here. Septic work is quoted from a site visit and a soil report, and a number on a web page is a guess dressed as a fact.

What should you ask the contractor?

  • Are you a soil scientist, and are you on the state registry.
  • Does the report include the profile description the county wants.
  • If the soil will not support a conventional system, what are the options and their costs.
  • Is the design included, or is that separate.

Related

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Need the job done, not just the rule explained

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