Septic System Designs Tailored to Your Property

A well‑designed septic system protects your property value and prevents costly failures down the road, giving you long‑term confidence that your system is sized, placed, and configured for lasting performance.

If you’re ready to move forward with your septic design, we’re here to help you take the next step.

320-626-4422

Designs built for your soil, your property, and regulatory standards

From trench and mound systems to at‑grade, pretreatment, box mound, and holding tank designs, we create septic solutions that match your soil conditions and meet all compliance requirements. Each design is built from GPS-collected field points and a precise CAD layout, then delivered in a clean, permit‑ready format that makes the next steps simple.

When the design is precise, your installer’s bid will be too — no surprises, no guesswork.


Residential System Designs

Complete designs tailored to your property’s needs, including site evaluation, soil verification, system layout, and all documentation required for permitting and installation.

Residential Type IV Pretreatment System Designs


Some properties simply need a little extra care — higher flows, tricky soils, lake setbacks, or unique site constraints can all impact how a septic system should be designed. Our intermediate and advanced designs take these challenges head‑on, giving homeowners peace of mind and preventing costly issues down the road. With Altra, you get a design that’s tailored, thoughtful, and built to support your property for the long haul.

Advanced Commercial System Designs


Commercial and high‑demand properties need septic systems that can keep up with heavy use and strict performance requirements. We provide comprehensive designs for businesses, campgrounds, restaurants, resorts, and other high‑use facilities, including solutions for high‑strength waste and pretreatment when required. Your design will anticipate your property’s demands, support reliable daily operation, and help protect your investment for the long term.

A strong septic design does more than meet requirements—it is designed to hold up season after season. If you’d like a simple overview of why design quality matters and how it protects your property, we’ve put together a short article that walks through the key benefits.

Read why a good septic design matters.

Service Areas for Septic Designs

We provide residential septic system designs throughout our local region — the Northwest Suburbs, Central Minnesota, and nearby communities. If you’re within roughly 45 miles of Princeton, we can help you move forward with a clear, accurate design that fits your property.

Residential Compliance Inspections

For Type IV pretreatment systems and advanced commercial designs, we serve clients across Minnesota. These projects often involve unique site conditions or higher flows, and we’re equipped to support properties statewide with the expertise they require.

Residential Type IV Pretreatment and Advanced Commercial Compliance Inspections

Challenging sites or an old system already in the ground? We can design a new layout that works with your property, even when things are a little tricky.

Have questions about which design your property needs?

We’re here to help you move forward with the guidance and support you need.

320-626-4422