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' A . Subsurface Information : Test borings and other exploratory operations may be made by the CONTRACTOR , at no cost to the OWNER , to obtain ' subsurface information . All borings/test holes shall be completely filled with clean sand upon completion of testing . B . Existing Structures : The Drawings show certain surface and underground utilities adjacent to the Work . This information has been obtained from existing records provided by others . It is not guaranteed to be correct or I complete and is shown only for the convenience of CONTRACTOR . Explore ahead of the required excavation to determine the exact location of all structures . Support and protect all structures from damage . If they are broken or damaged , restored them immediately at no additional expense . C . Existing Utilities : Locate existing underground utilities in the areas of Work . If utilities are to remain in place , . provide adequate means of protection during all operations . 1 . If uncharted or incorrectly charted piping or other utilities are ' encountered during excavation , consult ENGINEER immediately for directions as to procedure . Cooperate with OWNER and utility companies in keeping respective services and facilities in operation . Repair damaged utilities to satisfaction of utility owner. 2 . In general , service lines to individual houses and businesses are not shown ; however, assume that a service exists for each utility to each house or business . 3 . Do not interrupt utilities serving existing facilities except when permitted in writing by the owner of the facility and the ENGINEER and then only ' after acceptable temporary utility services have been provided . 4 . Demolish and completely remove from the site , existing underground utilities indicated to be removed . Coordinate with utility companies for shut-off of services if lines are active . D . Protection of Persons and Property : Barricade open excavations occurring ras part of this Work and post with warning lights . Operate warning lights during hours from dusk to dawn each day and as otherwise required . 1 . Protect structures , utilities , sidewalks , pavements , and other facilities from damage caused by settlement , lateral movement , undermining , washout and other hazards created by earthwork operations . E . Dust Control : Prevent air and water pollution through dust and dirt control to the satisfaction of the OWNER in the following areas : ' 1 . In the streets , sidewalks , and drives within the limits of the contract . 2 . Any haul roads leading to or away from the project that are used by the CONTRACTOR , its sub-contractors , and its material suppliers . Last revised 9/ 10/02 022204 EAST GIFFORD RIPublic Works\Keithmstormmater Proiects\Gifford East\Construction contract\Technical Specifications\Fnai Specifications\Division ' 2\02220 - Excavation and Backtll .doc