19.35.150 Irrigation plan requirements.
A. All landscape areas shall be provided with an irrigation system. The planning director may waive the requirement for an irrigation system when existing mature vegetation would be harmed by installation of an irrigation system for that portion of the required landscape area where the mature vegetation is located. The planning director may also waive irrigation requirements for all or portions of a site through the modification process in EMC 19.35.190 when the applicant commits to ensuring the full establishment of plantings that do not need irrigation at maturity, or will otherwise be watered during low rainfall conditions. When approving a modification, the planning director may require a five-year maintenance assurance device.
B. Except for residential projects with two or fewer units, irrigation plans shall be prepared and approved by either a Washington State licensed landscape architect or an irrigation association certified irrigation designer.
C. Irrigation plans must include:
1. Method of irrigation of required landscape areas and schematic of irrigation system;
2. Backflow prevention device; and
3. Service location. Irrigation plans and equipment are encouraged to include rain shut off devices and evapotranspiration based schedules.
D. Irrigation systems shall not be located within public right-of-way unless approved by the public works department. (Ord. 3774-20 § 9 (Exh. 7), 2020; Ord. 3322-13 § 13, 2013. Formerly 19.35.115.)