Septic installation starts with the site, not a tank size.

Property use, soil, water, setbacks, access, slope, system design, and approvals all affect what can be installed. Use this guide to prepare for a qualified on-site evaluation.

Review planning steps ↓Request local help

A practical sequence

From property information to final records

Site information

Property boundaries, planned bedrooms or use, water source, available records, access, slope, and setbacks help frame the evaluation.

Soil and system design

A qualified professional determines what testing and design are required for the site. Do not assume one system type fits every property.

Permits and approvals

Confirm which local or county approvals apply, who prepares submissions, and what must be approved before excavation begins.

Installation and closeout

The written scope should address excavation, materials, inspections, final grading, records, warranties, and future access for maintenance.

Proposal checklist

Questions before approving installation

1What testing, design, and approvals are included?
2What daily use or bedroom count is the design based on?
3Which tank, treatment, distribution, and absorption components are specified?
4How are setbacks, high water, slope, utilities, and access handled?
5What excavation, fill, grading, restoration, and inspections are included?
6Which records, maintenance instructions, warranties, and exclusions will I receive?

Request local help

Start with the property details.

Use the secure request form to describe the property, intended use, existing records, and project timing. We may connect an eligible request with an independent local professional.

Open the property-owner request form →