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A. Except as otherwise provided in this chapter, an approved landscape plan shall be on file with the public works director prior to site plan approval or the issuance of a building permit.
B. The landscape plan shall be prepared by a landscape architect registered in the state of Nevada, or other person permitted to prepare landscaping plans pursuant to chapter 623A of the Nevada Revised Statutes.
C. The landscape and irrigation plan shall be neatly drawn at a convenient commonly used engineering or architectural scale. Two (2) blue line or black line prints of the plan shall be furnished to the public works director. The plan shall include the following information:
1. Scale, north arrow, location of adjacent streets, property lines, easements, sidewalks, drives, paved areas, utilities, buildings, existing trees (including street trees), and any other natural or manmade site features influencing the use of the site.
2. Construction details pertinent to installation of the landscape in accordance with city standards.
3. A note or calculation sheet with all landscape calculations relevant to the application of this section.
4. A plant list giving the common and botanical names of plants to be used. This plant list shall be arranged in legend form with a key number assigned to each plant. On the plan, each plant shall be identified by a key number. The size of the plant, its spacing and the quantity to be used shall follow the legend, as the following example illustrates:
EXAMPLE PLANT LIST
Hedera Helix ’Baltica’
5. Irrigation plans (at the same scale as the landscape plans), and specifications which comply with the uniform plumbing code, ensure the correct irrigation coverage and include the following:
a. Scale, north arrow, locations of adjacent streets, property lines, easements, sidewalks, drives, paved areas, buildings, including street trees, and any other natural or manmade site features influencing the use of the site.
b. Identification and description of automatic irrigation components to ensure that vegetation is adequately serviced through water conserving features.
c. Indication of the system point of connection and size, water pressure available and maximum demand of the system in gallons per minute.
d. Irrigation equipment specified must be identified by manufacturer's name and equipment identification number.
e. Cross connection devices installed as follows:
(1) Single-family or duplex residential model homes shall have a pressure vacuum breaker installed on the main line of the irrigation system upstream of the control valves.
(2) All other development shall have reduced pressure backflow preventor (r.p. device).
f. All locations of irrigation valves, controllers, hose bibs, quick coupler valves, sprinkler heads, and backflow preventors. Sprinkler location on plans shall also include pattern of sprays (i.e., full circle, half circle), psi, radius of throw and gallons per minute.
g. Irrigation details must be used to clarify particular situations. Typical details should include backflow prevention devices, valves, irrigation heads, and irrigation controllers.
h. Schedule 40 PVC is required for all pressure lines and under all paved areas. Piping must be installed a minimum of twelve inches (12") underground for nonpressure irrigation lines and eighteen inches (18") underground for constant pressure irrigation lines. Adequate freeze protection shall be provided. Schedule 40 PVC or equivalent sleeving under sidewalks or driveways is recommended.
i. Landscape irrigation shall be separately metered.
j. A recommended irrigation system operation schedule that includes four (4) seasonal changes shall be required.
6. Other relevant information such as, but not limited to, elevations, sections and construction details, necessary to provide an accurate description of the work to be performed may be required by the building department.
7. When the landscape has been installed, the preparer of the plans or his similarly licensed successor, shall certify, as soon as practicable, on a form provided by the public works department, that the landscaping as required under this chapter has been substantially provided on the project. When the building department receives such certification, the city may issue a certificate of occupancy for the project.
D. A copy of the approved landscape plan shall be kept on the job site until the project is inspected and accepted by the city. (Ord. 06-01, 1-25-2006)