Our Drain Rock 3/4-inch or 1-1/2-inch —also known regionally as Clean Fill, Crushed Blue, Crushed Rock, or Blue Rock — is a versatile, angular crushed stone perfect for a wide range of drainage and construction applications. Sourced locally from high-quality quarries, this gray-blue rock provides excellent compaction and superior water flow, making it ideal for French drains, base layers, septic systems, mud control and behind retaining walls.
 
Whether you're a contractor prepping a jobsite or a homeowner tackling a landscape or drainage project, our drain rock delivers reliability and performance where it matters most.
 
Common Applications:
French drains and trenching
Driveway and pathway base
Backfill for retaining walls
Landscape drainage and erosion control
Septic and leach field systems
 
Product Features:
Size: 3/4" or 1-1/2" angular rock
Washed, screened and free of fines
Improves drainage and prevents water pooling
Sold by the ton
 
Coverage Per Ton:
~100 sq ft 2" depth
~50 sq ft 4" depth
 
Delivery Available to:
Marin County
Sonoma County
Napa County
Solano County
Contra Costa County