1. All pads are graded flat at rough grading with drainage swales at a minimum slope of 1% towards the street or designed drainage outlet.
  2. The front drive approach shall not exceed a slope of 14%.
  3. “All drywells shown on this project shall be maintained by the owners where their locations are on private property or through the creation of a Landscape Benefit Assessment District when approved by the City. Drywells will be replaced by the owners when they cease to drain standing surface water in a 24 hour period or are deemed to be obsolete by the City. Regular Maintenance of the drywell settling chamber is required to achieve proper operation of the drywell and shall be performed annually or more often depending upon its location, and shall be performed by the owner or district as applicable.”
  4. "All drywells shall be constructed per City of Palmdale Standards."
  5. Temporary Erosion Control Plans shall be submitted prior to October 1. The control devices shown on said plans shall be installed prior to November 1 and maintained in operable condition until April 15.
  6. TEMPORARY EROSION CONTROL:
  7. 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. Deviations from this requirement shall be submitted in writing with an alternative plan for temporary erosion control. This plan shall be approved by the City Engineer.
  8. Installation of the erosion blankets shall be installed to the satisfaction of the City of Palmdale landscape architect prior to acceptance of rough grading and shall be per the manufacturer's specifications.
  9. PERMANENT EROSION CONTROL:
  10. The surface of all slopes more than three (3) feet in vertical height shall be covered with North American Green S-150 or approved erosion control blankets. Installation shall conform to manufacturer's specifications.

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