Types of Septic Systems: Which One Is Right for Your Property?

Not all septic systems are created equal. The right system for your Green Bay property depends on soil conditions, lot size, water table depth, and local regulations. Here's an overview of the most common types of septic systems used in Wisconsin.

1. Conventional Gravity System

Best for: Properties with deep, well-draining soil and adequate slope.

A conventional gravity system is the most common and most affordable type. Wastewater flows by gravity from the house to the septic tank, then to the drain field. No pumps or electricity required. Cost: $4,000 - $8,000.

2. Pressure Distribution System

Best for: Flat lots or properties with shallow soil.

This system uses a pump to distribute effluent evenly across the drain field. The pump ensures uniform distribution, which helps prevent overloading any one area. Cost: $5,000 - $10,000.

3. Mound System

Best for: Properties with high water tables, shallow soil, or poor drainage.

A mound system builds a sand mound above ground level to provide additional treatment before the effluent reaches the natural soil. These are common in areas of Brown County with clay soil or high groundwater. Cost: $8,000 - $15,000.

4. Aerobic Treatment System

Best for: Properties with sensitive environments or where higher treatment levels are required.

Aerobic systems use oxygen to promote bacterial activity, producing cleaner effluent than conventional systems. They require electricity and more maintenance but provide the highest level of treatment. Cost: $10,000 - $20,000.

5. Drip Distribution System

Best for: Shallow soil or steep slopes.

This system uses a pump to drip effluent slowly into the soil through a network of small tubes. The slow, even distribution allows for effective treatment in challenging conditions.

How to Choose the Right System

The best way to determine the right system for your property is to have a professional site evaluation. This includes soil testing, percolation tests, and an assessment of your lot's characteristics. Contact Septic Green Bay to connect with licensed contractors who can evaluate your property and recommend the best system.