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The purpose of this standard is to ensure that plants will survive the critical establishment period when they are most vulnerable due to lack of watering.

All required landscaped areas in the city must comply with at least one of the following:

A. A permanent built-in irrigation system with an automatic controller will serve the proposed landscape area, and the system will be installed and operational before the city grants an occupancy permit or final inspection for the development.

B. A temporary irrigation system will serve the proposed landscape area, provided the applicant can successfully demonstrate that the proposed temporary irrigation system will provide sufficient water to ensure that the plant materials to be planted will survive installation and, once established, will survive without watering other than natural rainfall.

C. A permanent or temporary irrigation system will not serve the proposed landscape area, provided:

1. The Director finds the landscape area otherwise fulfills the requirements of this section; and

2. The applicant submits all of the following with the site plan application:

a. A statement from a Washington State licensed landscape architect or Washington certified professional horticulturalist (CPH) certifying that the materials to be planted will survive without watering other than natural rainfall.

b. A plan for monitoring the survival of required vegetation on the approved site plan for at least one year and for detection and replacement of required vegetation that does not survive with like-kind material or other material approved by the reviewing authority.

c. A statement from the applicant agreeing to install an irrigation system if the reviewing authority finds one is needed to ensure survival of required vegetation, based on the results of the monitoring plan. (Ord. 3040 § 2 (Att. A), 2019)