17.154.150 Modification to permits.
(1) After issuance of a grading permit, the director may require modifications of grading plans, specifications, construction phasing and/or operations or impose additional or more stringent standards and requirements, to the extent necessary to protect public health, safety and welfare. Such modifications, standards, or requirements may be necessary because of unusual circumstances or newly discovered site conditions including but not limited to soil type, topography, and weather conditions. Such modifications, standards and requirements may include but are not limited to scheduling, phasing or time restrictions.
(2) A phasing plan may be approved as part of a modified permit for incomplete portions of a grading proposal subject to the following requirements:
(a) In lieu of completing the required improvements the applicant shall provide a two-year bond or equivalent form of financial surety at 150 percent of the established cost of the improvements made pursuant to the grading permit when it is determined by the city engineer that the incomplete project requires additional erosion control, slope management and/or drainage improvements to protect adjacent and abutting property and/or critical areas on the site;
(b) All phases of a plan shall be completed within 24 months of the approval of the modified permit, except the director may set an earlier expiration date pursuant to SMC 17.154.110(1).
(3) Standards. A phased grading plan shall provide:
(a) A plan sheet delineating the phases and sequencing of proposed grading with proposed completion dates for each phase;
(b) An explanation of why the phased plan is needed;
(c) The percentage of remaining work to be completed as a separate phase and cost of each phase;
(d) A revised plan sheet showing how each phase complies with the performance standards for the permit including describing the edge of the filled area and temporary erosion control;
(e) Description of how site drainage will be controlled until the project is complete. (Ord. 1499 § 10 (Exh. H), 2021).