Contractor shall make himself familiar with all underground utilities, pipes and structures. Contractor shall take sole responsibility for any cost incurred due to damage of said utilities. Prior to the commencement of work the contractor shall contact Underground Service Alert (800)422-4133 for location of underground utilities.

Do not willfully proceed with Construction as designed when it is obvious that unknown obstructions, area discrepancies and/or grade differences exist that may not have been known during design. Such conditions shall immediately be brought to the attention of the owner. The contractor shall assume full responsibility for all necessary revisions due to failure to give such notification.

The surface of all slopes more than (3) feet in vertical height and steeper than 5:1 shall be covered with City of Palmdale approved erosion control blankets. Installation shall conform to manufacturer's specifications. Deviations from this requirement shall be submitted in writing with an alternative plan for temporary erosion control (water and dust). This plan shall be approved by the City Engineer.

Installation of the erosion control blankets shall be installed to the satisfaction of the City of Palmdale Landscape Architect prior to the acceptance of rough grading.

The surface of all slopes more than three (3) feet in vertical height and steeper than 5:1 shall be covered with City of Palmdale approved erosion control blankets. Installation shall conform to manufacturer's specifications.

The surface of all slopes more than three (3) feet in vertical height and steeper than 5:1 shall be protected against damage by erosion by planting with ground cover plants. Slopes exceeding fifteen (15) feet in vertical height shall also be planted with trees spaced at no more than twenty (20) feet on center or shrubs spaced at no more than ten (ten) feet on center or a combination of both. All plant material shall be triangularly spaced.