(A) Scope. All grading/clearing activities shall be done in accordance with this section.
(B) Re-vegetation and stabilization of the affected area. All graded and or cleared areas including excavation and fill slopes shall be re-vegetated or stabilized in order to reduce erosion, dust and noxious weeds. When a permit is issued, the re-vegetation or stabilization shall occur within the timeline established on the approved grading plan.
(C) Fill. Fill greater than two feet for non-structural areas shall be compacted to a minimum of 90% of maximum dry density, as determined by the "Standard Proctor" method (American Society for Testing and Materials (ASTM) or American Association of State Highway and Transportation Officials (AASHTO)), or equivalent method approved by the City Engineer or Building Official.
(D) Erosion and drainage control systems.
(1) Permanent systems.
(a) Erosion control. Erosion control shall be designed, constructed, and maintained to prevent erosion of graded or disturbed areas that may result in off site sediment deposition.
(b) Shoulders. The shoulders of a paved public or private roadway, pathways, trails and sidewalks shall be protected against erosion wherever curbing or constructed spillways are not provided.
(c) Surface drainage. All surface drainage created by proposed development or grading activities shall be contained on-site unless routed to an approved drainage facility. Excavation and fill slopes shall be provided with engineered surface drainage designed for stability and erosion protection of affected properties.
(d) Natural and existing drainage routes. Natural and existing drainage routes shall be shown on and planned for as part of the grading/clearing plan. The plan shall demonstrate that grading/clearing activities will have minimal impact on the existing water flow through the natural and existing drainage routes, except in instances where an approved surface water collection and disposal facility is incorporated into the grading/clearing plan.
(e) Subsurface drainage. Subsurface drainage measures for stability and protection of affected properties from water seepage may be required.
(2) Temporary systems. Approved temporary drainage control systems shall be provided in phased developments, during construction or when conditions warrant.
(E) Import and export of earth material.
(1) All other required permits shall be obtained prior to importing or exporting of any earth material on any project requiring a grading/clearing permit.
(2) During all required inspections, approved plans and permits must be available onsite.
(3) The transportation of earth material on public rights-of-way shall be in a manner that does not allow blowing soil and other hazards, in accordance with other state and local regulations.
(F) Hours of operation.
(1) Grading equipment operation and maintenance shall be conducted in accordance with the requirements of the Riverbank Code Chapter 93, Noise.
(2) The City Manager may allow grading equipment operation or maintenance during other hours if such operations are not detrimental to public health, safety, or welfare.
(3) Permitted hours of operation or maintenance may be shortened by written notice, if the City Engineer finds a substantial adverse effect on the public health, safety, or welfare.
(G) Restriction of vehicles.
(1) No vehicles shall be driven over natural open space areas that have been designated on the applicant's approved grading/clearing sketch or grading/clearing plan except as vehicle use is included in the plan.
(2) Points-of-entry to the site during grading/clearing shall be only as designated on the approved grading/clearing sketch or grading/clearing plan.
(3) For major grading/clearing permits, access roads to the site during grading/clearing shall be only as designated on the approved grading/clearing plan.
(H) Dust control.
(1) During grading/clearing, and until re-vegetation or stabilization has taken place; dust shall be minimized through application of approved dust control measures.
(2) All grading/clearing activities must comply with all San Joaquin Valley Air Pollution Control District regulations for air quality, fugitive and visual emissions.
(I) Additional requirements.
(1) Public rights-of-way, sidewalks and other improvements shall be maintained by the permit holder during grading/clearing in a neat and clean condition, free of loose soil, construction debris, and trash.
(2) Debris, fill or equipment shall not be stored within a public right-of-way or emergency access routes.
(Ord. 2004-006, passed 8-23-04)