Commercial and specialty septic systems

Everything else on this site assumes a house. Commercial and other non-residential onsite wastewater is a different design problem: design flow comes from seat count, fixture units or a use-type table instead of bedrooms, some facility types carry high-strength or chemically distinct waste, and scale alone can move a project into engineer-stamp, operating-permit or discharge-permit territory a house never reaches. No figures below are invented: where a number would normally go, we describe the method and point at your state's rules page instead.

By Facility Type

• Septic Systems for Agricultural and Farm Operations
• Septic Systems for Bars, Breweries and Wineries
• Septic Systems for Campgrounds and RV Parks
• Septic Systems for Car Washes
• Septic Systems for Churches and Places of Worship
• Septic Systems for Daycares and Childcare Centers
• Septic Systems for Event Venues
• Septic Systems for Gas Stations and Convenience Stores
• Septic Systems for Hotels and Motels
• Septic Systems for Laundromats
• Septic Systems for Marinas
• Septic Systems for Medical and Dental Offices
• Septic Systems for Mobile Home Parks
• Septic Systems for Multi-Family and Apartment Buildings
• Septic Systems for Office Buildings
• Septic Systems for Restaurants and Food Service
• Septic Systems for Retail and Strip Malls
• Septic Systems for Schools
• Septic Systems for Veterinary Clinics
• Septic Systems for Warehouses and Industrial Buildings

Design & Engineering

• Alternative and Advanced Treatment for Commercial Septic Loads
• Flow Equalization for Commercial Septic Systems
• Grease Traps and Interceptors for Commercial Septic Systems
• High-Strength Waste in Commercial Septic Design
• How Commercial Septic Design Flow Is Calculated
• Monitoring and Operating Permits for Commercial Septic Systems
• Nitrogen Reduction for Commercial Septic Systems
• Traffic-Rated Lids and Tank Sizing for Commercial Sites
• When a Commercial Septic Design Needs a Professional Engineer Stamp
• When a System Stops Being 'Onsite' and Needs a Discharge Permit

The angle that is genuinely ours

Commercial sites are exactly where the recorded as-built matters most. Tank size, grease interception, and prior approvals constrain any expansion or change of use, a restaurant taking over a retail space is a change of use that can require a system upgrade, and the property's existing file is the fastest way to find out where it stands. We publish where county records are kept and how many we hold, and generate a free, code-referenced septic design for a parcel to use as a starting point.

Find septic records by county  Find a local septic company  Septic rules by state  Start a free design