2012-01-20_HYDROLOGY - M1995112 - Laserfiche WebLink

Home Browse Search

WORK TO BE DONE BY OTHERS • Field Engineering Services, inclusive of surveying, lay -outs & as- builts. • Any and all outside testing required by this installation. SSI will provide its daily field sheets & has included the required laboratory testing. A level, stable, dry & vegetative -free work platform to support our equipment must be provided and maintained. The platform must be 40' wide and along the center line of the slurry wall. Work platform must be a minimum of 3' above the groundwater level and have a grade longitudinally no greater than 2 %. • Roads and ramps must be firm and stable. They must be suitable for our equipment, heavy machinery, and material trucks. These roads will provide easy access to the set -up area, job site, mixing plant, and local roads. These roads and ramps must be provided and maintained. • Provision of fine material for SSI to use in its soil bentonite slurry. • Saw cutting of asphalt for the slurry wall installation, if required, and its restoration. Supply of a suitable water source (160,000 gpd) to our mixing plant. Potable water is preferred. • Location, encasement and /or relocation of buried and overhead utilities in the path of our work. Electrical wires & poles must have the OSHA required clearance. • Relocating and protecting all utilities and adjoining structures which may be affected by the slurry wall work. You shall have, and indemnify us against, liability for damage to utilities and adjoining structures which are not relocated and adequately protected. • A clay cap or other required covering material must be provided, if required. • All site clean -up and restoration (e.g. vegetation or pavement) must be provided. • Any and all permits and permissions must be provided. • Miscellaneous provisions, e.g. watch person, barricades, sanitation, flag person, notification to adjacent property owners and utility companies, must be provided, if required. Safety & decontamination facilities for equipment, materials, personnel, & disposal of personal protective equipment must be provided and maintained, if required. • Disposal of excess slurry. • Disposal of excess trench spoil & backfill materials. SSI will windrow (spread) these material along the workpad, for your convenience, which will consist of broken rock, boulders, cobbles, & excess soils. • Erosion control. • Removal of any obstructions along the slurry wall alignment that our equipment on site cannot safely & readily handle within a reasonable amount of time. All obstruction removal time, if done by SSI, will be charged based on time & material. CONDITIONS All slurry work will be performed in one continuous operation once SSI