Engineered Soil Solutions for Commercial, Municipal & Stormwater Projects

Modern stormwater management has become one of the most important aspects of commercial development and municipal infrastructure. Whether you’re constructing a new retail center, improving a public park, building a subdivision, or completing a roadway expansion, chances are you’ve encountered a project specification requiring a custom bioswale blend.

If you’ve been told your project requires a bioswale soil mix, you’re probably asking:

• What exactly is a bioswale blend?
• Why can’t I just use topsoil?
• Where are bioswale blends used?
• How do I know I’m getting the right mix?

At Tim Wallace Soil Mix Supply, we specialize in manufacturing custom soil blends designed to meet project specifications throughout the Chicagoland region.

What Is a Bioswale Blend?

A bioswale blend is an engineered soil mixture specifically designed to manage stormwater runoff while supporting healthy plant growth.

Unlike ordinary topsoil, bioswale soils are carefully blended to balance:

• Water infiltration
• Drainage
• Moisture retention
• Soil stability
• Nutrient availability
• Long-term performance

The goal is simple:

Capture stormwater, filter pollutants, reduce flooding, and allow water to naturally infiltrate into the ground.

These engineered soils have become an essential part of modern sustainable development and green infrastructure.

Why Not Just Use Topsoil?

Traditional topsoil is excellent for lawns and landscaping—but it isn’t designed to handle large volumes of stormwater.

Standard topsoil may:

• Hold too much water
• Drain too slowly
• Become compacted
• Reduce infiltration rates
• Fail engineering requirements

Bioswale blends are specifically engineered to avoid these problems.

The correct blend allows water to move through the soil at a controlled rate while still providing enough organic matter for healthy vegetation.

Where Are Bioswale Blends Used?

Today, bioswale blends are specified in thousands of commercial and municipal projects.

Common applications include:

Commercial Developments

• Office buildings
• Shopping centers
• Warehouses
• Industrial parks
• Apartment complexes
• Business parks

Municipal Projects

• City parks
• Streetscape improvements
• Parking lots
• Road reconstruction
• Highway medians
• Public buildings
• Schools
• Libraries

Stormwater Infrastructure

• Bioswales
• Rain gardens
• Bioretention cells
• Stormwater detention basins
• Green infrastructure projects
• Water quality improvement systems

Why Are Municipalities Requiring Bioswale Blends?

Stormwater runoff carries pollutants including:

• Fertilizers
• Oil
• Heavy metals
• Sediment
• Road salt
• Organic debris

Without proper filtration, these contaminants eventually reach:

• Rivers
• Lakes
• Streams
• Wetlands
• Municipal water systems

Properly engineered bioswale soils help remove many of these pollutants naturally before the water enters local waterways.

The result is:

• Cleaner water
• Less erosion
• Reduced flooding
• Healthier ecosystems
• Improved groundwater recharge

Every Project Is Different

One of the biggest misconceptions is that there is a single “bioswale soil.”

In reality, there are dozens of possible blends.

Project engineers may specify:

• Sand percentages
• Compost percentages
• Topsoil content
• Organic matter levels
• Infiltration rates
• Soil texture
• pH
• Particle size
• Gradation requirements

Every municipality, engineering firm, landscape architect, or civil engineer may require a different specification.

That’s why custom blending is so important.

We Blend To Your Specifications

At Tim Wallace Soil Mix Supply, we don’t believe in “close enough.”

If your plans call for a specific bioswale blend, we’ll work to meet your project requirements.

Whether your specification comes from:

• Civil engineer
• Landscape architect
• Municipality
• IDOT
• County agency
• Environmental consultant

Our team can custom blend soils designed to match your project’s requirements.

Simply provide your soil specification, and we’ll take care of the rest.

Quality Matters

Not all soil suppliers manufacture engineered blends the same way.

Our blending process focuses on consistency from the first yard to the last.

We use carefully selected materials that may include:

• Premium screened topsoil
• Sand
• Compost
• Organic amendments

Every ingredient is mechanically blended to create a uniform product throughout the load.

That consistency helps contractors install with confidence while meeting project specifications.

Benefits of Custom Bioswale Blends

Choosing the proper engineered blend provides significant advantages:

Improved Stormwater Infiltration

Allows water to move through the soil at the designed rate.

Better Water Quality

Helps filter sediment and pollutants before they reach nearby waterways.

Reduced Soil Compaction

Proper soil structure promotes healthy root development and long-term performance.

Healthy Vegetation

Supports grasses, native plants, and other bioswale vegetation required for successful establishment.

Long-Term Performance

Engineered soils continue performing year after year with proper installation and maintenance.

Working With Contractors, Engineers & Municipalities

Our customers include:

• General contractors
• Excavation contractors
• Site developers
• Municipal agencies
• Park districts
• Landscape contractors
• Civil engineers
• Commercial property developers

Whether your project requires only a few cubic yards or several hundred, we can help coordinate production and delivery to keep your project moving.

Delivery Available

Tim Wallace Soil Mix Supply offers bulk delivery directly to commercial and municipal job sites throughout the greater Chicagoland area.

Our experienced drivers understand construction scheduling and work closely with contractors to deliver material where and when it’s needed.

Why Choose Tim Wallace Soil Mix Supply?

For more than 40 years, we’ve been helping contractors, municipalities, and landscape professionals find the right soil solutions for challenging projects.

When you work with Tim Wallace Soil Mix Supply, you receive:

• Custom blended bioswale soils
• High-quality raw materials
• Consistent mechanical blending
• Reliable bulk delivery
• Knowledgeable customer support
• Experienced commercial service

Whether you’re building a new commercial development or installing green infrastructure for a municipal project, we’ll help ensure your bioswale soil is one less thing you have to worry about.

Need a Custom Bioswale Blend?

If your plans call for a custom bioswale mix, let our team help.

Simply provide your project specifications, and we’ll do our best to manufacture a high-quality engineered soil blend designed to meet your requirements.

Contact Tim Wallace Soil Mix Supply today to discuss your project, request pricing, or schedule bulk delivery to your job site. (630) 759-1080