Septic Systems (C03)
Septic systems handle sewage where municipal connections aren’t available – and Utah’s soil and groundwater conditions create unique challenges.
This BidScope guides you through system types: conventional septic with drain field for standard soils, pressure distribution systems for marginal soils or challenging terrain, mound systems for high water tables or shallow bedrock, and aerobic treatment units for difficult sites.
Learn the critical soil percolation test (perc test) that determines what system you can install – percolation rates measured in minutes per inch dictate drain field sizing and sometimes require engineered alternatives.
Understand tank sizing requirements: 1,000 gallons for 3-bedroom homes, 1,250 gallons for 4-bedroom, scaling up from there.
Navigate Utah Department of Environmental Quality rules and local health department permitting – septic permits are strict and site-specific.
Know drain field design requirements including trench dimensions, distribution pipe spacing, and aggregate specifications.
Learn setback requirements: 100 feet from wells, 50 feet from property lines, 25 feet from structures.
Understand when pumps are required for uphill discharge or pressure distribution.
Plan reserve drain field area – Utah often requires designating a future replacement area.
Know maintenance requirements and pumping intervals (typically every 3-5 years).
Calculate replacement costs and plan for eventual system failure.
Navigate repair options versus full replacement decisions.
This comprehensive tool ensures your septic system is properly designed, permitted, and installed for long-term reliable operation.
What’s Included:
- Septic system types (conventional, pressure distribution, mound systems, aerobic treatment)
- Conventional septic with gravity drain field
- Pressure distribution systems for marginal soils
- Mound systems for high water table or shallow bedrock
- Aerobic treatment units (ATU) for difficult sites
- Soil percolation testing (perc test) procedures and requirements
- Percolation rates and system design implications
- Tank sizing requirements (1,000 gal for 3BR, 1,250 gal for 4BR, scaling)
- Single-compartment vs dual-compartment tanks
- Concrete tank specifications
- Plastic/fiberglass tank options
- Risers and access lids
- Drain field design and sizing calculations
- Absorption trench dimensions and spacing
- Distribution pipe specifications (perforated 4-inch Schedule 40)
- Aggregate specifications (3/4-inch to 1.5-inch washed gravel)
- Geotextile fabric requirements
- Utah DEQ septic regulations
- Local health department permitting process
- Site evaluation requirements
- Setback requirements (100 ft from wells, 50 ft from property lines, 25 ft from structures)
- Pump systems for uphill discharge
- Pressure distribution pumps and controls
- Alarm systems for pump failure
- Reserve drain field area requirements
- Replacement area designation
- System maintenance requirements
- Pumping intervals (typically 3-5 years)
- Bacterial additives (usually unnecessary and potentially harmful)
- Winter operation in Utah climate
- Freeze protection strategies
- System repair options (jetting, additives, partial replacement)
- Full system replacement considerations
- Cost estimates by system type
- Soil testing and engineering fees
- Installation costs
- Long-term maintenance budgeting
- Warranty expectations
