PD Background Report (PL-REZ-2022-000033)

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drainageways flow through culverts built under Queen Ka`ahumanu Highway and merge at the makai end of the 12 -acre property previously slated for an affordable housing development and feed into a County -owned drainage channel from there. The applicant is processing a Conditional Letter of Map Revision (CLOMR) with the FEMA to further channelize the portion of Holualoa Drainageway that crosses the 12 -acre site to allow more safe and efficient transfer of these flood waters. The applicant anticipates that a new CLOMR will be needed during the development of Phase I of the project for the Horseshoe Bend drainageway. In response to the amendment application, the Department of Public Works (DPW) outlined a varied history of efforts to provide drainage facilities for the project, with many changes to the approach and final design of the facilities that have yet to be constructed. In response, the applicant references Condition Q of the existing ordinance, which requires the applicant to develop a drainage master plan, including final design of the facilities, meeting with the approval of the Department of Public Works (DPW). Moreover, construction of the drainage improvements must be consistent with the requirements of the approved master plan and Chapter 27 of the Hawai`i County Code as part of the grading permit process and completion of the improvements will be required prior to certificate of occupancy for the project. Thus, ultimately DPW will have final approval authority over the final design and implementation of drainage for the project. 24. Archaeological/Historical Resources: According to SHPD, the project area has been subject to several previous archaeological studies, including a reconnaissance survey (Hammatt and Folk 1983) and two AISs (Hammatt et al. 1984; Hammatt et al. 1992) conducted in TMK: (3) 7-6-021:016 and 017, and a field inspection of the current project area (Escott 2016). The 1984 AIS was conducted for the original 171 -acre project area (which included both the RS and RM zoned lands), except for a five -acre portion in the southeast corner of project area intended to be developed by HPA. The AIS identified 21 archaeological sites and two bulldozed modern planting terraces in the project area, including 11 excavated sites and two burials that were subsequently reinterred outside of the project area. The AIS report recommended no further work at all 21 sites. SHPD did not accept the Hammatt et al. (1984) AIS as it did not meet SHPD standards at the time. -10-