Specifications include, but are not limited to: Unit Price 1: Remove Unsuitable Materials (off site disposal). Includes removal of unsuitable material and legal off-site disposal.; Unit Price 2: Engineered Fill (off-site borrow source) Includes: Subgrade preparation, and, supplying, importing, placing, and compacting soil material meeting the requirements for Select Granular Material.; Alternate 1 Photovoltaic Array: Provide full installation photovoltaic system on roof in lieu of rough-in for future installation of system. Inculde photovoltaic panels, panel supports, wiring, interverter, batteries and all other components necessary for full installation. ; Alternate 2: Dwelling Unit Interior Doors Provide pre-hung solid core dwelling unit interior doors in lieu of pre-hung hollow core doors. Base Bid and Alternate Item: Section 08 1418 - Wood Doors and Frames.; Alternate 3: Dwelling Unit Flooring Provide Marmoleum Linoleum tile flooring in lieu of Mannington Spacia LVT plank flooring. Base Bid and Alternate Item: Section 09 6500 - Resilient Flooring.; Alternate 4: Dwelling Unit Entry Door Hardware Provide mechanical locks at unit entrydoors in lieu of Schlage electronic locks. Include all aspects of deduct in this alternate, including electrical and low voltage work. Base Bid and Alternate Item: Section 08 7100 - Door Hardware.