LP-21-00002 Suncadia Ph 3 Div 17 BOCC Staff Report

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7 An NPDES Construction Stormwater General Permit is required for projects with potential for stormwater discharge from a construction site with disturbed ground. A Stormwater Pollution Prevention Plan would be required for the permit and implemented for all permitted construction sites. Staff Response: The applicant provided a response to the comments submitted by DOE, included as Index #30. The applicant stated that they will comply with the conditions set forth in the Development Agreement, Erosion Control Plan, and the MPR Conditions of Approval. The applicant has an NPDES permit for MPR construction activities issued by DOE (Permit No. WA-005236-1). The applicant will need to adhere to all applicable regulations as outlined in the Development Agreement. Washington State Department of Health DOH commented with the following statements: DOH commented that at this time DOH has record of 992 active connections of the 1501 approved connections. With the recent activity located within Suncadia over the past 2 to 3 years, DOH is requesting “a summary, from Suncadia, that identifies each application that is seeking connections greater than “992” and the total number of connections being sought for each application.” Staff Response: Applicant provided a response to DOH comments, included as Index #30 of the Master File. The applicant will adhere to all applicable regulations as outlined in the Development Agreement. Suncadia provided active connections of 992 of the 1,501 allowed connections, As well as 221 platted lots within the last three years that are currently not part of the 992 active connections. Staff provided the response to DOH on September 30, 2021. DOH responded that the provided information was sufficient (See Index #23). Staff agrees with applicants provided responses. Kittitas County Public Health Kittitas County Public Health submitted the following comments: 1. The collected raw wastewater from the development will be conveyed by means of onsite gravity sewer to the existing gravity sewer in Tumble Creek Drive. Any on-site septic systems that are to be utilized for wastewater management must adhere to the standards set by both the Washington Administrative Code, and Kittitas County Code. 2. Proposed long plat indicates a Group A community water system will be used. If the intention is to utilize the Suncadia water system the lots added to the system must have the final approval of the Washington State Department of Health, Division of Drinking Water. The applicant must prove legal and physical availability of water for all new uses of water on proposed lots. 3. Please clarify how the raw wastewater will be conveyed from gravity septic to an existing system in Tumble Creek. Is this system an on-site system? Or is this a connection to the lift station running to a wastewater treatment facility? 4. Documentation from Suncadia stating they can serve the proposed 80 new, single-family residences as well as meeting the requirements of the Washington State Department of Health and providing what is necessary to maintain a green operating permit status. Staff Response: Applicant provided a response to Kittitas County Public Health’s comments, included as Index #30 of the Master File. The applicant will adhere to all applicable regulations as outlined in the Development Agreement. Suncadia provided active connections of 992 of the 1,501 allowed connections, As well as 221 platted lots within the last three years that are currently not part of the 992 active connections. CDS was provided with the applicant’s response on September 30, 2021. KCPH responded that the provided information was satisfactory with their department on October 7, 2021. Staff agrees with applicant provided responses.