(a) The Director of Public Works shall only authorize the following between October 15 and April 15 when it is found that such projects comply with the provisions and are consistent with the purposes of this chapter:
(1) Contiguous land clearing operations involving greater than one acre in a one-year period of time; and
(2) Major grading operations (greater than 1,000 cubic yards).
When construction will be delayed due to the limitation on winter operations, the date for expiration of the permit shall be extended by that amount of time that work is delayed by the requirements of this chapter.
(b) The Director of Public Works shall stamp or attach the following statement to all development permits and plans issued within areas subject to the provisions of this chapter.
NOTICE: IF THE CONSTRUCTION ACTIVITY WILL EXTEND INTO THE WINTER OPERATIONS PERIOD (OCTOBER 15 THROUGH APRIL 15), ADDITIONAL SOIL EROSION AND SEDIMENT CONTROL MEASURES MAY BE REQUIRED.
ANY DEVELOPMENT PROJECT WHICH IS REQUIRED TO IMPLEMENT AN APPROVED SOIL EROSION CONTROL PLAN SHALL HAVE SUCH APPROVED PLAN AMENDED IF IT DOES NOT COMPLY WITH THE PROVISIONS ESTABLISHED FOR WINTER OPERATION BY SECTION 17.93.080 OF THE CITY OF ADELANTO ZONING CODE. ALL REQUIRED WINTER OPERATION EROSION CONTROL DEVICES SHALL BE INSTALLED PRIOR TO OCTOBER 15 FOR ONGOING CONSTRUCTION PROJECTS AND PRIOR TO ANY CONSTRUCTION ACTIVITY FOR THOSE DEVELOPMENT PROJECTS COMMENCING BETWEEN OCTOBER 15 AND APRIL 15.
(c) The following winter operation measures shall be taken to prevent accelerated erosion. Additional measures may be required by the Director of Public Works, when determined to be necessary by field inspection:
(1) Between October 15 and April 15, disturbed surfaces not involved in the immediate operation shall be protected by mulching or other effective means of soil protection;
(2) All roads and driveways shall have drainage facilities sufficient to prevent erosion on or adjacent to the roadway or on downhill properties. Erosion-resistant surfacing may include, but is not limited to slag, crushed rock or natural soil when compacted to ninety percent (90%) of maximum density as determined by Test D1557-58T of the American Society for Testing and Materials, as amended from time to time, for the top 12 inches;
(3) Runoff from a site shall be detained or filtered by berms, vegetated filter strips, or catch basins to prevent the escape of sediment from the site. These drainage controls shall be maintained by the permittee or property owner as necessary to achieve their purpose throughout the life of the project; and
(4) Erosion control measures shall be in place at all times and by the end of each day's work on surfaces under construction.