Low Impact Development | Environment & Sustainability
a. The applicant may increase the width of a critical area buffer required under SDC 21.03.020 by 35 percent. b. Any such increased width may also be included as part of a contiguous critical area tract counting as open space tract under subsection 2. of this section (see Diagram B).
where it will not be driven upon and such soil is then returned and respread on the parcel; ii. Six inches of arborist chippings are placed on top of in-place soil areas that may be subject to construction activities or operations; iii. Soil that is not protected as set forth in subsection 5.b.i. or 5.b.ii. of this section shall be tilled to a depth of 12 inches upon completion of all site disturbance; iv. Stump removal shall consist of grinding the stump in the existing location; and v. In no case shall the natural grade of the undisturbed area be modified by more than four inches.
6. Reforestation – Eight Technique Points.
a. No storm water facility modeling credits to reduce sizing of required flow control or water quality facilities in accordance with the adopted Surface Water Design Manual shall be provided for reforestation unless reforestation areas are contained within a designated tract as approved by the director; b. Residential Development. All of the lots within a residential development shall be reforested prior to final occupancy is issued on the development; c. Commercial/Institutional Development. The site shall be reforested;
5. Limited Site Disturbance – 12 Technique Points.
a. Soil disturbance of the site shall be limited to 50 percent of the site area otherwise unconstrained by environmentally critical areas and associated buffers and tree protection standards during plat and subsequent building construction; b. Limited clearing may occur within the area where soil is undisturbed, subject to the following limitations: i. The top four inches of soil may be disturbed but not removed from the site or lot, as needed, to allow for removal of unsuitable vegetation; provided, that the disturbed soil is moved to an isolated location
d. Reforestation shall consist of:
Effective | January 1, 2022
Title 21: Sammamish Development Code | 127
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