APPENDIX

A FLOOD RELATED REGULATIONS CURRENTLY IN EFFECT B MICRO MAPS C STATE-OWNED PARCELS

APPENDIX A: FLOOD RELATED REGULATIONS CURRENTLY IN EFFECT

Current state regulations that define flood damage protection requirements and recommendations are stated in material sources referenced in this document. The City and County of Honolulu’s Revised Ordinances of Honolulu (ROH) focuses on building code requirements and flood districts in chapters 16 and 21, respectively.

Building Code Amendments to Reduce Existing and Future Building Stock Vulnerability to Coastal Hazards and Climate Impacts In the City and County of Honolulu

Gary Chock’s report to the State of Hawaii Office of Planning was prepared in 2015 to amend existing regulations regarding climate change impacts including flooding. New information regarding climate change and associated impacts is continuously updating; therefore regulations regarding the mitigation of climate change impacts should likewise reflect that knowledge. Listed below is an excerpt from Gary Chock’s report listing relevant regulation and those of which may consider further amendments.

i. Building Codes and Regulatory Standards Currently in Effect 1. Land Use Ordinance, ROH Chapter 21 (amended 2014) 2. Honolulu Building Code, ROH Chapter 16 (October 18, 2012) 3. Honolulu International Residential Code, ROH Chapter 16 (October 18, 2012) 4. Shoreline Setbacks, ROH Chapter 23 5. Special Management Area, ROH Chapter 25 6. Flood Hazard Area, ROH Chapter 21A 7. National Flood Insurance Program (NFIP) 8. Honolulu Plumbing Code, ROH Chapter 19 9. Honolulu Electrical Code, ROH Chapter 17 10. State of Hawaii Coastal Management Program, HRS Chapter 205A 11. State of Hawaii Coastal Lands Program of DLNR Land Division 12. State of Hawaii Land Use Commission, HRS Chapter 205 13. State of Hawaii Certified Shoreline, HRS Chapter 205A 14. Mandatory Seller Disclosures in Real Estate Transactions, HRS Chapter 508D 15. Uniform Land Sales Practices Act, HRS Chapter 484 16. Hawaii State Building Code, HRS Chapter 107, Part II 17. PUC 2007 Adoption of the 2002 National Electrical Safety Code 18. Standards for Civil Works Under the Jurisdiction of the USACE 19. The U.S. Navy Climate Change Roadmap (2010 20. The American Society of Heating, Refrigerating, and Air-Conditioning Engineers Standard 169, Weather Data for Building Design Standards (ASHRAE 2006) 21. The National Fire Protection Association NFPA 1144: Standard for Reducing Structure Ignition Hazards from Wildland Fire (NFPA 2013) ii. Adapting Building Construction and Civil Infrastructure to Climate Change iii. Draft list of Proposed code amendments 1. Additional Codes and Regulatory Standards not previously mentioned: a. For Risk Category III and IV structures, any proposed Hawaii codes and standards incorporating climate change effects should reference the USCOE technical guidelines for determining relative sea level rise. b. ROH Chapter 32 Building Energy Conservation Code: Adopt American Society of Heating, Refrigerating, and Air-Conditioning Engineers Standard 169, Weather Data for Building Design Standards for use in the application of ANSI/ASHRAE/IESNA Standard 90.1-2004, Energy Standard for Buildings Except Low-Rise Residential Buildings

c. ROH Chapter 20 Fire Code: Create regulatory maps of historic burn areas for use in these regulations and for mandatory seller disclosures

In addition to code updates should reflect the current knowledge on climate change and flooding. Identifying and approaching flooding as an area-wide problem instead of a building-scale problem would promote comprehensive flood mitigation strategies.

APPENDIX B: MICRO MAPS

Location near Waipahu Refuse and Convenience Center

Location near the Pearl Harbor Historic Bike Path

Location near Waipahu District Park

Location near Pouhala Station

APPENDIX C: STATE-OWNED PARCELS

Six State-owned parcels on the northeast side of the study area (see Figure 2) are described below with their function and vegetated area, and named by the tax parcel number. 1. 9-4-017:065, Undefined address A three-acre lot with even level topography. Mostly paved with interspersed grass strips, trees, and shrubs. East face is lined by the Waipahu drainage canal. Currently serves as vehicle parking for Plantation Town Apartments and is owned by Aoao of Plantation Town Apartments and Hawaii Housing Finance and Development Corporation.

2. 9-4-017:001, 94-941 Kauolu Pl. A four-acre lot that houses two buildings that comprise Kamalu Hoolulu Elderly Housing. Contains a parking lot but maintains large vegetated surfaces with grass, shrubs, and large canopy trees. Currently owned by Hawaii Public Housing Authority.

3. 9-4-017:063, Undefined address, currently parking for 94-941 Kauolu Pl. A one-acre lot, with even level topography. Includes an unpaved strip that parallels Waipahu drainage canal. Currently owned by Hawaii Housing Finance and Development Corporation, includes a roundabout at the end of Kau Olu Place serves as a parking lot. The north end of the lot is paved and has interspersed grass strips and trees.

4. 9-4-017:062, 94-333 Mokuola St A one-acre lot with even topography. Currently contains the Mokuola Vista apartments. Majority of the ground surface is paved and used as parking. Edges of the property are not paved and contain grass strips with trees.

5. 9-4-017:052, 94-275 Mokuola Street A four-and-a-half-acre lot which contains Waipahu Public Library, Waipahu Civic Center, and a parking lot. Much of the property is developed and serves as roads or parking. In areas of vegetation, there is grass with trees and shrubs of varying sizes.

6. 9-4-017:051, 94-830 Hikimoe Street A 0.8 long lot that houses the Waipahu Community Adult Day Care Center. The lot is largely developed and paved. Currently owned by Waipahu Community Adult Day Care Center and Hawaii Housing Finance and Development Corporation.