Oil/Water Separators, also referred to as oil and water separators or interceptors, are specialized concrete vaults integrated into a larger water treatment system to intercept oil in storm water runoff before they make their way into local water or sewer systems. Precast oil/water separators use enhanced coalescing and gravitational separation to improve the separation process and reduce the frequency of maintenance and cleaning. Oldcaslte Infrastructure separators are available in a wide range of sizes and styles.

Features & Benefits
  • Modular Construction
  • Base/Bottom Section
  • Sludge weirs, Oil weirs, and Outlet weirs
  • Lids and Top Sections
  • Riser Sections
  • Frames and Covers
  • Embedded Lifters
  • Grade Rings and Risers
  • Knock-outs and Block-outs
  • Rugged durability to efficiently slow down the flow of waste water and remove oil byproducts before flowing into a sanitary sewer system
  • Customizable sectional design
  • Quick and easy install
  • Sturdy five-sided watertight design
  • Customizable with special accesses, block-outs, and knock-outs
  • Variety of shapes and sizes available
  • Precast weirs are fitted in the base section
  • Create the barrier to capture byproducts
  • Your project requirements will determine the number of weirs installed
  • Cover and protect
  • Maintenance and inspection accessibility
  • Variety of shapes and sizes
  • Variable access opening sizes and locations offered
  • Elevate access to accommodate for varied depths
  • Variety of sizes available
  • Variety of sizes and shapes
  • Rectangular frames and galvanized covers or manhole frames with cast or ductile iron covers
  • Allow for easy install
  • Galvanized steel material
  • 2, 4, 8, and 20 ton loading capabilities
  • 1 ton universal lifters also available
  • Elevate access opening covers to grade
  • Available in rectangular and round shapes
  • Available in multiple locations to accommodate various connection sizes and elevations
  • Round or rectangular shapes available per design specifications
  • Knock-outs are easily broken with a hammer for a desired fit
Specs & Guides

Model: 816-SA-5000

Material: Concrete

Height: 7’

Width: 8’

Length: 16’

Weight: 51035 lb


PDF: 020-816SA-5000-9.pdf

DWG: 020-816SA-5000-9-1.dwg


Location Available

28499 SW Boberg Road
Wilsonville, OR


(888) 965-3227


M-F 7:00-4:00

Quote Generator

Looking for a quote for your project?
While browsing our products, select “Add to Quote Generator” to quickly get an estimate for everything you need.