Site Preparation for Septic System Installation

Perk Testing & Septic Site Services in Albion for properties requiring soil evaluation and excavation before septic permits

Soil percolation rates determine whether a property can support a septic drainfield and what system design the health department will approve. Perk test preparation involves excavating test holes to specific depths where the drainfield will be located, allowing officials to measure how quickly water drains through soil layers at that depth. J.L. Simmons Excavating LLC provides perk testing preparation and septic site excavation in Albion, handling the groundwork required before septic permits are issued and systems are installed.


The service includes digging test holes to depths specified by the health department, typically four to six feet depending on planned system depth, and excavating septic tank and drainfield areas once permits are approved and system layouts are finalized. Septic riser installation brings tank access points to finished grade, eliminating the need to dig each time the tank requires pumping or inspection.



Request an assessment to coordinate perk test scheduling and review excavation requirements for your septic system design.

Construction site with excavator, gravel piles, and drainage pipes under a cloudy sky

What Changes After Septic Excavation Completes

Excavation creates the precise depths and dimensions required for septic tanks and drainfield trenches, with tank holes dug to accommodate the unit size plus bedding material underneath and backfill space around the sides. Drainfield trenches are excavated to uniform depth across the entire absorption area, maintaining the level bottom required for even effluent distribution through perforated pipes.


Once excavation is complete, the site is ready for tank delivery and drainfield installation, with access routes graded to allow heavy equipment and concrete trucks to reach work areas without damaging surrounding property. Septic risers are installed after tanks are set, extending access covers to ground level so future maintenance happens from the surface rather than requiring excavation each time.


The work coordinates with septic installers and health department inspection schedules, and excavation timing accounts for soil conditions that affect digging and grading accuracy. Sites with high water tables or dense clay layers require different excavation approaches than well-drained sandy soils.

Answers to Frequent Service Questions

Property owners preparing for septic system installation often ask about testing procedures and excavation timing.

  • What happens during perk test preparation?

    Test holes are excavated at locations and depths specified by the health department, typically spaced across the proposed drainfield area, allowing officials to fill the holes with water and measure drainage rates over a set period to determine soil suitability for septic systems.

  • How does soil type in Albion affect septic system design?

    Soil composition determines how quickly effluent percolates through the drainfield, with sandy soils draining faster and requiring smaller absorption areas, while clay-heavy soils drain slowly and may require larger drainfields or alternative system designs to meet health code requirements.

  • When should excavation happen relative to septic installation?

    Excavation occurs after permits are issued and system layouts are marked, usually within a few days of scheduled tank delivery and installation, preventing holes from filling with water or collapsing if left open for extended periods.

  • What does septic riser installation involve?

    Risers are vertical extensions installed on top of septic tank access ports, bringing lids to finished grade with covers that remain accessible at ground level, eliminating the need to locate and dig down to buried tanks during routine pumping or inspections.

  • How is excavated soil managed during septic site work?

    Material removed from tank and drainfield areas is typically stockpiled on-site for use as backfill around tanks and over drainfield trenches, with excess soil spread across the property or removed depending on site grading plans and the volume generated during excavation.

J.L. Simmons Excavating LLC provides perk test preparation and septic excavation services for residential properties throughout Calhoun County. Schedule septic site preparation to coordinate with your system design and health department inspection timeline.