National Site Materials is your trusted nationwide supplier of engineered bioretention soil mix (also called bio soil, rain garden soil, or stormwater filter media). We formulate and deliver high-performance bioretention soil that meets or exceeds local and state specifications for stormwater BMPs, LID practices, green infrastructure, and permeable landscaping projects across all 50 states.
Whether you’re installing bioretention basins, rain gardens, bioswales, tree box filters, green roofs, or permeable planter boxes, we provide consistent, pre-blended bioretention soil in bulk (dump truck or walking-floor trailer) or super sacks — shipped directly to your job site, anywhere in America.
- Same-day quotes
- Volume discounts on truckload and multi-load orders
- Lab-tested and certified mixes (ASTM, state DOT, and municipal specs)
- Fast delivery to urban, suburban, and rural projects
Call (888) 237-2740 or request a quote online and get your bioretention soil delivered this week.
Frequently Asked Questions – Bioretention Soil from National Site Materials
- What is bioretention soil?
Bioretention soil is an engineered growing media specifically designed to filter and treat stormwater runoff. It typically consists of 60–80% sand, 15–30% compost/topsoil, and small amounts of organic matter to support plant growth while maintaining high infiltration rates of 5–20 inches per hour. - What is bioretention soil used for?
It is used in stormwater Best Management Practices (BMPs) such as rain gardens, bioretention cells/basins, bioswales, planter boxes, green roofs, and tree pit systems to capture, filter, and infiltrate polluted runoff from parking lots, roads, and rooftops. - Why is engineered bioretention soil better than regular topsoil or garden soil?
Regular topsoil clogs quickly and has poor drainage. Engineered bioretention soil is formulated for rapid infiltration, high pollutant removal (metals, oils, nutrients, sediment), and long-term hydraulic performance while still supporting healthy plant growth. - Do you meet my state or city specifications?
Yes. We produce mixes that comply with specifications in all 50 states, including Florida DEP, Texas TCEQ, California Caltrans, Virginia DEQ, Maryland MDE, Washington State Ecology, New Jersey DEP, and hundreds of municipal standards. We can adjust the blend to meet your exact spec. - How quickly can you deliver bioretention soil nationwide?
Most orders ship within 3–7 business days. Same-week and next-day delivery is available in many metro areas. We deliver to even the most remote job sites. - Can I order small quantities or just a few cubic yards?
Yes. We deliver everything from 1–2 super sacks (1–3 yards each) up to full walking-floor trailers (100+ yards). No order is too small or too large. - Do you provide lab reports and certifications?
Every load comes with a certificate of analysis showing gradation, organic content, permeability rate, pH, and nutrient levels. Third-party lab testing is included at no extra charge. - Why do contractors and municipalities keep ordering from National Site Materials?
- Nationwide coverage with one phone call
- Consistent quality load after load
- Competitive pricing with volume discounts
- Expert support for mix design and specification compliance
- Reliable on-time delivery even during peak season
- 20+ years serving the stormwater and landscape industry
- How do I get a fast quote for my project?
Call us at (888) 237-2740, email [email protected], or fill out the quick quote form on this page. Tell us your location, required spec, and quantity — most quotes are returned the same day.
Ready to get your bioretention soil delivered anywhere in America?
Contact National Site Materials today — the nationwide leader in stormwater media and landscape materials.