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2023 Docket Enabling Ordinance December 19, 2023 <br />Page 100 <br /> <br /> <br />12.04.05.030 Stormwater Management Manual Adopted. <br />Kittitas County adopts by reference the Stormwater Management Manual for Eastern Washington <br />(SWMMEW), current edition, as now or hereafter amended, along with additional provisions for <br />stormwater management as follows in this chapter. <br /> <br />12.04.05.040 Specifications. <br />All stormwater facilities shall be designed in accordance with the current edition of Washington <br />State Department of Ecology’s SWMMEW. Public road projects may be designed using BMPs <br />specified in the current edition of the Washington State Department of Transportation (WSDOT) <br />Highway Runoff Manual (HRM); however the Core Elements of the SWMMEW must still be met. <br />Elements of stormwater collection and conveyance systems that are not addressed in the <br />SWMMEW shall be designed in accordance with the current edition of the WSDOT Hydraulics <br />Manual. <br /> <br />12.04.05.050 Exemptions. <br />Projects exempt from this code include the exemptions and partial exemptions listed in the <br />SWMMEW, Sections 2.1.3 and 2.1.4, current edition. Local exemptions and variances may be <br />granted by the County Engineer in accordance with the guidelines in Section 2.1.5 of the <br />SWMMEW. Exemptions or exceptions to the requirements in the SWMMEW within the NPDES <br />Phase II boundary and not specifically allowed by the SWMMEW shall be subject to approval by <br />the Washington State Department of Ecology. <br /> <br />12.04.05.060 General Stormwater Requirements. <br />All proposed development within Kittitas County shall be required to adhere to the SWMMEW, <br />current version. If thresholds are met to require core elements 5 or 6, a Stormwater Permit from <br />Kittitas County shall be required prior to beginning construction. The following requirements <br />shall be met: <br /> <br />A. Core Element No. 1. Stormwater Site Plan. A stormwater site plan shall be prepared in <br />accordance with SWMMEW Chapter 3 and submitted for review and approval by the <br />County Engineer or designee prior to issuance of a grading permit, building permit, final <br />plat approval, or other County permit as applicable. See KCC 12.04.05.070 for stormwater <br />site plan submittal requirements for subdivision projects. The Stormwater Site Plan will <br />be reviewed using the Department’s construction plan review procedures in coordination <br />with all other County development and/or permit review procedures. The County’s <br />review and approval of the Stormwater Site Plan shall not relieve the applicant,