Big Creek Final Development Plan - Submitted January 25 2017 Amended 4-22-17

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Amended 4-27-17 14 installation or construction and acquire a Land Use Agreement for any portion of the development plans that lie within the BPA’s right of way. Response: Big Creek Trails Planned Unit Development will apply and gain approval from BPA for any activity within the BPA right of way prior to use. 2. Water a. Activities such as road widening, stump pulling and clearing, grading and fill work and utility placements may require an NPDES Construction Stormwater Permit issued by the Department of Ecology prior to start of construction. This permit requires the preparation of a Stormwater Pollution Prevention Plan (Erosion Sediment Control Plan). It is the applicant’s responsibility to contact the Department of Ecology. Response: Big Creek Trails Planned Unit Development will apply and gain approval of Stormwater Pollution Prevention Plan prior to the start of construction. b. On-site stormwater management that conforms to the specifications of the most current version of the Stormwater management Manual for Eastern Washington is required of this development. Stormwater systems shall be designed to store stormwater generated by a 24-hour, 25-year storm event. Stormwater system designs shall be prepared and stamped by a civil engineer licensed in the State of Washington. The stormwater system design shall be presented to Public Works and reviewed by the County Engineer prior to issuance of final plat approval. The stormwater system construction shall be certified by a licensed engineer prior to issuance of any building occupancy permit. Response: Big Creek Trails Planned Unit Development will design and submit to Kittitas County Public Works a Stormwater Management Plan for, at a minimum, each final plat presented for approval to Kittitas County. c. All water proposed to be used must be obtained from a water budget neutral source meeting conditions of Kittitas County Code Chapter 13.35. Response: Big Creek Trails Planned Unit Development will obtain all water required by the Big Creek Water Bank. Big Creek Trails Planned Unit Development currently owns, through the Big Creek Water Bank, adequate water for full development of the Big Creek Planned Unit Development. d. Withdrawals of groundwater on the subject property are subject to the rules and regulations adopted and administered by the Washington State Department of Ecology; this includes the use of water for irrigation. Legally obtained water must be used on-site.