Specifications - City of Montpelier, Vermont

Title:02200 – EarthworkMontpelier District HeatingCity of Montpelier, VTIssue Date:September 28, 2012Page #:3 of 161.5 QUALITY ASSURANCEA. Codes and Standards: Perform earthwork complying with requirements of authoritieshaving jurisdiction.B. Testing and Inspection Service: Employ a qualified independent geotechnicalengineering testing agency to classify proposed onsite and borrow soils to verify thatsoils comply with specified requirements and to perform required field and laboratorytesting.1.6 PROJECT CONDITIONSA. Existing Utilities: Do not interrupt existing utilities serving facilities occupied by theOwner or others except when permitted in writing by the Owner and then only afteracceptable temporary utility services have been provided.1. Provide a minimum of 48 hours notice to the Engineer and receive written notice toproceed before interrupting any utility.B. Demolish and completely remove from site existing underground utilities indicated to beremoved. Coordinate with utility companies to shutoff services if lines are active.PART 2PRODUCTS2.1 SOIL MATERIALSA. General: Provide approved borrow soil materials from offsite when sufficient approvedsoil materials are not available from excavations.B. All soils shall be free of loam, debris, waste, frozen materials, vegetation and otherdeleterious matter.C. Sand for Cushion, Backfill, and pipe bedding shall consist of material reasonably freefrom silt, loam, clay, organic matter. It shall be obtained from approved sources and shallmeet the requirements of the following table:Gradation Requirements for Sand Borrow and CushionSIEVE DESIGNATIONPERCENTAGE BY MASS (WEIGHT)PASSING SQUARE MESH SIEVES^^37.5 mm (1 ½ inch) 90 to 10012.5 mm (1/2 inch) 70 to 1004.75 mm (No. 4) 60 to 100150 µm (No. 100) 0 to 2075 µm (No. 200) 0 to 8EARTHWORK 02200 3