COM 0198.000 2018-2020 - Laserfiche WebLink

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with the Water Board,before a water commitment for the project can be effected. The agreement will establish the scope of water system improvements required to serve the project, allocation of water to the project,duration of water commitments, timeline for completion, and payment of applicable facilities charges. According to DWS standards, interior waterlines serving the commercially-zoned areas must meet the minimum fire protection flow of 2,000 gallons per minute (gpm) at 20 psi residual pressure. Minimum fire protection flow is 1,500 gpm for multiple-family residential uses, and 1,000 gpm and 500 gpm for the small lot and large lot single-family residential uses, respectively. 23. Wastewater: The property is located in close proximity to the County sewer lines along Punahele Street to the north and at Komohana Street at Kukuau Street near the Sunrise Ridge Subdivision. The State Department of Health requires that all wastewater generated from the development be disposed into the County sewer system. When the zoning was originally approved in 2010, the applicant estimated the project would generate an average of approximately 299,000 gallons per day of wastewater flow. The existing Punahele Street sewer line is capable of handling some of the wastewater flows from the proposed development, however; additional improvements will be needed to Connect the entire project to the County sewer system. The applicant proposes three options for connecting to the County sewer system. The first option is to provide an approximately 1,690 linear foot sewer extension from the Punahele St—Komohana St intersection to the Ponahawai St—Komohana St intersection. This alignment provides the shortest route to the existing County sewer system but will likely require burying the new sewer pipe 30+ feet under the road surface due to the topography near the Komohana St- Pu'u Honu Place intersection. The second option is to provide a lift station(s) to pump sewer from the lower elevation into the Punahele St sewer line via Waipuna Place. The third option is to provide a new sewer line, approximately 5,260 linear feet in length, from the Keawe Street intersection up Ponahawai Street to the development. This alignment is more than three times the length of the first option but may be less expensive because the sewer line will be running in a shallow trench. According to the applicant, the Department of Environmental Management, Wastewater Division prefers the third -11-