Information for All Vendors and Contractors Bidding Opportunities Architects, Engineers, Professional Services Small Works Vendors of Goods and Services District Standards Surplus Materials Auction Prequalification of Electrical Contractors Interlocal Agreements Home / Vendors and Contractors / District Standards / Major Equipment & Material Specifications / 1300 Underground Structures (Refer to Material Catalog) / 1300 Underground Structures (Refer to Material Catalog) 1313.00 Vault Precast Self Grounding PDF, 213.08 KB