Exhibit 2 Oil Water Separator.pdf

This technical specification document from Oldcastle Precast details the design and specifications for a 550-gallon API-style oil/water separator (model 660-SA-550). The document provides detailed engineering drawings and specifications for a precast concrete oil/water separator assembly consisting of a top section (No. 660-T-SA, 1,600 lbs), base assembly (No. 660-B-SA, 6,785 lbs), and an optional heavy traffic top (No. 660-T-SA-HD, 1,830 lbs). The unit features 4" PVC inlet/outlet pipes with flexible connectors, oil retaining baffles, flow diffuser baffles, and galvanized diamond plate access doors with locking latches.

The separator is designed in accordance with ASTM C 890 for AASHTO H520-44 vehicle loading, with a flow rate of 37 GPM based on 15 minute retention time. The overall dimensions are 6'-0" length x 4'-0" width x 5'-6" height, designed for 0 to 5'-0" of cover. The unit includes important installation requirements such as ventilation instructions and startup procedures requiring clean water filling to the outlet pipe level. The specification is IAPMO listed and includes manufacturer recommendations for regular inspection, cleaning and maintenance schedules.