Information for All Vendors and Contractors Bidding Opportunities Architects, Engineers, Professional Services Small Works Vendors of Goods and Services District Standards 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 1313.02 575 VAULTS, CONCRETE, SELF GROUNDING PDF, 184.55 KB