16.18.030 Air Quality.
   A.   Air Pollution. Sources of air pollution shall comply with rules set forth by the Environmental Protection Agency (Code of Federal Regulations, Title 40), the California Air Resources Board, the Southern California Association of Governments, and the South Coast Air Quality Management District's (SCAQMD) Rules and Regulations and Final Air Quality Management Plan. No person shall operate a regulated source of air pollution without a valid operation permit issued by the SCAQMD. Uses, activities, or processes that require SCAQMD approval of a permit to operate shall file a copy of the permit with the department within thirty (30) days of its approval.
   B.   Dust and Dirt. Land use activities that may create dust emissions (e.g., construction, grading, etc.) shall be conducted to create as little dust or dirt emission beyond the boundary line of the parcel as possible including, but not limited to, the following:
      1.   Scheduling. Grading activities shall be scheduled to ensure that repeated grading will not be required, and that implementation of the proposed land use will occur as soon as possible after grading;
      2.    Operations During High Winds. Clearing, earth-moving, excavation operations, or grading activities shall cease when the wind speed exceeds twenty-five (25) miles per hour averaged over one hour;
      3.   Area of Disturbance. The area disturbed by clearing, demolition, earth-moving, excavation operations or grading shall be the minimum required to implement the allowed use;
      4.   Dust Control. During clearing, demolition, earth-moving, excavation operations, or grading, dust emissions shall be controlled by regular watering, paving of construction roads, or other dust-preventive measures (e.g., hydroseeding, etc.), subject to the approval of the city engineer.
         a.   Material(s) excavated or graded shall be watered to prevent dust. Watering, with complete coverage, shall occur at least twice daily, preferably in the late morning and after work is done for the day.
         b.   Material(s) transported off-site shall be either sufficiently watered or securely covered to prevent dust.
      5.   On-site Roads. On-site roads shall be paved as soon as feasible. During construction, roads shall be watered periodically, and/or shall be chemically stabilized; and
      6.   Revegetation. Graded areas shall be revegetated as soon as possible to minimize dust and erosion. Portions of the construction site to remain inactive longer than three months shall be seeded and watered until grass cover is grown and maintained, subject to the discretion of the city engineer.
   C.   Exhaust Emissions. Construction-related exhaust emissions shall be minimized by maintaining equipment in good running condition and in proper tune in compliance with manufacture's specifications. Construction equipment shall not be left idling for long periods of time.
   D.   Odor Emissions. Noxious odorous emissions in a matter or quantity that is detrimental to or endangers the public health, safety, comfort, or welfare is declared to be public nuisance and unlawful, and shall be modified to prevent further emissions release.
(Ord. 293 § 1 (part), 2004; Ord. 182 § 2 (part), 1997)