PerkFilter® Vault Design And Performance Specifications.pdf

Key features include:

- Treatment Capacities: Effective for NJDEP 80% removal and WA Ecology GULD basic and phosphorus standards.
- Peak Flow Rate: 0.364 cfs (NJDEP) and 0.182 cfs (WA Ecology).
- Structure Dimensions: 4' x 8' with a 2' drop, utilizing 24" cartridges.
- Concrete Requirements: Minimum 5,000 PSI compressive strength, ASTM C150 cement, and ASTM A615/A706 rebar (Grade 60).
- Soil Bearing Capacity: Required allowable capacity of 2,500 PSF.
- Design Loadings: Based on AASHTO HS-20-44 with impact, 5'-0" maximum soil cover, and a confirmed water table elevation (by Engineer-of-Record).
- Lateral Earth Pressure & Live Load: Specified as 45 PCF (drained) and 80 PSF surcharge (8'-0" below grade), respectively.
- Opening Requirements: Oversized holes for pipes must be concentric to pipe ID, with annular spaces filled with concrete at 3,000 PSI.
- Access Covers: Recommended 9" minimum diameter, with alternative options available.
- Weight Limits: Maximum pick weights are provided for the top and base sections (including internal components).
- Alternative Treatments & Capacities: Contact Oldcastle for variations in treatment performance and peak flow capacities.

This structure is designed to specific parameters, and the Engineer-of-Record must verify compliance with project requirements. Any discrepancies should be reported to Oldcastle Infrastructure.