§ 14.05.084. Erosion and sedimentation control design report and plans.

An erosion and off-site sedimentation control design plan shall be submitted with the application for a grading permit. This plan shall describe in detail the necessary methods, management practices and mechanical devices which will be used to mitigate the release of sediment-laden waters from the project standards. The permittee shall sign a statement as part of the plan submittal concerning subsequent conformance with the maintenance requirements of the erosion control design plan. This report and plan shall include, but not be limited to, the following:

A.

Slopes. Drainage shall be directed away from the faces of cut and fill slopes into approved drainage structures at the top of the slope. The faces of cut and fill slopes shall also be formed to control against erosion. This control may consist of stepping or other surface protection, as approved by the building official. The protection for the slopes shall be installed within 15 days after completion of the rough grading. Where cut slopes are not subject to erosion due to the erosion-resistant character of the materials, such protection may be omitted if approved by the building official.

B.

Other Measures. Where graded slopes exceed a 3 to 1 ratio or 10 feet in height, they shall be protected with a temporary soil stabilization measure to be approved by the building official to provide immediate surface protection following completion of the rough grading if they will remain in the rough-graded condition during the rainy season.

C.

Planting. The surface of all cut slopes more than 5 feet in height, except those cut slopes adequately stabilized from erosion by stepping or other physical surface protection pursuant to this section, and fill slopes more than 3 feet in height shall be permanently protected against damage by erosion by planting with approved plant material contained on a list maintained by the city. Such plant material shall be planted upon completion of the final grading in conjunction with the installation of final soil stabilization measures as specified above. Graded slopes exceeding 15 feet in vertical height shall be landscaped pursuant to a landscape plan approved by the building official or other responsible city official indicating the plant mix of groundcover, shrubs and trees by plant type, size and location of planting.

D.

Irrigation. Slopes which require planting shall be provided with an approved system of irrigation, designed to cover all portions of the slope, the plans for which shall be submitted and approved prior to installation. A functional test of the system shall be required. All irrigation systems where required shall be designed on an individual lot basis unless commonly maintained in an approved manner.

E.

Maintenance. Graded slopes and landscaped areas in subdivisions or parcel map areas shall be maintained in accordance with the requirements of this chapter by the sub-divider or its successor in interest until the individual lots or parcels are transferred to individual ownership or a homeowners association or similar group responsible for maintenance of the property.

F.

The building official may waive the submittal of such report for hillside grading operations involving 2,000 cubic yards or less.

(Ord. 7127 § 5 (part), 2007: Ord. 6483 § 2 (part), 1992)