Specifications include, but are not limited to: the successful Contractor shall furnish all labor, equipment and materials required for the installation of new sidewalks and a slab on grade as shown in the attached drawings at The Trap Rock Water Treatment Facility (TRWTF), located at 42400 Clearwater Glen Circle, Leesburg VA 20175.The Work shall follow the following requirements:Compact subgrade to 95 percent density; Install a 4” base of compacted 57-stone; Install 4” of > 3500 psi concrete at 28 days. Loudoun Water may coordinate and pay for field and/or laboratory testing to verify strength; Encase 6x6 wire mesh mid-depth in the concrete; Provide a broom finish; Slope away from buildings/structure, > 1.0 % and < 2.0 %; Install expansion joints every 20 ft; Add control joints every 5 ft; Install bond breaker when poured against an adjacent structure.