Landscape plans shall contain the following information and be completed by a licensed landscape architect, Washington certified nurseryman, or Washington certified landscaper, unless otherwise approved by the planning director:
A. North arrow, scale, date, title, and name of owner.
B. Accurate site plan (at a scale of one inch equals twenty feet or larger, or as appropriate for the scale of development) showing the location of property lines and their dimensions.
C. Existing and proposed water courses, drainage features, streets, sidewalks, utility lines (including height of existing and proposed overhead electrical power lines) and easements, and other public or semipublic improvements within or adjacent to the site.
D. Delineation of existing structures, if any, on adjacent properties.
E. Plants to be saved and areas not to be disturbed shall be noted on the landscape plans. The plan shall locate temporary fencing used to protect vegetation and soils from damage during construction.
F. Existing and proposed elevations at sufficient locations of the site to show drainage patterns.
G. Contour lines when the slope exceeds six percent.
H. Existing and proposed buildings and other structures, paved areas, curbs, walks, light fixtures, signs, fences and screen walls, and other permanent features to be added and/or retained on the site.
I. Calculation of total landscaped area, and percentage of landscaping within parking areas.
J. Complete description of plant materials shown on the plan, including common and botanical names, quantities, spacing, container or caliper size at installation, and mature height and spread.
K. Irrigation plans showing location and type of all outlets (spray, bubbler, drip, etc.); location and size of water meter or other connection; location, type, and installation details of backflow prevention device; and delineation of each watering zone or circuit.
L. Landscape areas where xeriscape principles are to be applied shall be clearly delineated in the plan submittal.
M. Native and nonnative species plants should be clearly distinguished.
N. Identification of areas subject to soil conditioning and mulching, including specifications for soil quality, conditioning, and mulch per Section
18.130.050(B).
(Ord. 2003-10 § 1 (Exh. A, VI(F)), 2003. Formerly 18.60.060; Ord. 2007-56 § 8 (part), 2007; Ord. 2013-04 § 2 (Exh. A (part)), 2013; Ord. 2023-04 § 2 (Exh. A § 7), 2023)