state water projects plan (swpp) update dhhl...
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Department of Hawaiian Home LandsDepartment of Land & Natural Resources
State Water Projects Plan (SWPP) UpdateDHHL Projects
Outline• Introduction• Key Tasks• Technical Approach• Preliminary Findings• Next Steps
Introduction
Objective of the SWPP:“to provide a framework for planning and implementation of water development programs to meet projected water demands for State projects”
Introduction
Preparation Responsibility:State Agency – DLNR Engineering DivisionConsultant – Fukunaga & Associates
Introduction
• SWPP last updated in 2003 for all State Agencies
• Due to limited funding, SWPP to be updated only for DHHL projects Actively evolving project list Significant land area Land use may differ from County zoning
Key Tasks
• Inventory of Existing DHHL Water Systems and Sources Wells and Stream Diversions
• Identification of Proposed DHHL Projects / Developments
• Assessment of Future Water Demand Projections Low, Medium and High Demand Scenarios
Key Tasks
• Outline a Water Development Strategy Implementation Plan and Recommendations
• Incorporation of new information from Agricultural Water Use & Development Plan and Water Resource Protection Plan Updates
Technical Approach for SWPP Update – DHHL Projects
Technical ApproachPreliminary Steps
• Review of available information (2003 SWPP Update, 2007 SWMPO) Project data Mapping
• Initial meetings with DHHL
Technical ApproachData Collection
• Interviewed LDD and LMD Compiled short-term project data into Survey
Forms in Access Database
• Water System Data from DOH• CWRM Well and Stream Diversion
Database• Available Project Master Plans• GIS files of DHHL land inventory
WAIMEA
KEKAHA
HANAPEPE
WAILUA
ANAHOLA
MOLOAA
KAPAA
DHHL Lands - Kauai
EAST KAPOLEI IIEAST KAPOLEI IKAPOLEI REGIONAL MALL
KAKAINA/KUMUHAU
KAPUA
KALAELOA
KAUPUNI
DHHL Lands - Oahu
NANAKULI
BOWL-O-DROMEPAPAKOLEA
WAIAHOLE
HAIKU
PEARL CITY
SHAFTER FLATS
WAIMANALO
HONOKOWAI WAIEHU
PAUKUKALO
WAILUKU
PUUNENE
KEOKEA/WAIOHULI
KALIHI/KANAHENAKULALAPAAHIHI
ULUPALAKUA
KAHIKINUI
WAIKU
WAILUA
KEANAE
LEALII
DHHL Lands - Maui
HOOLEHUA
KALAMAULAKAPAAKEA/KAMILOLOAMAKAKUPAIA
UALAPUE
KALAUPAPA
DHHL Lands –Molokai & Lanai
LANAI CITY
KALAOA
KEALAKEHE
HONOKOHAU/KEAHUOLU
KAWAIHAE
PAUAHI/KEONIKI
LALAMILO
KAMOKU-KAPULENA/NIENIE
PUUKAPU
HONOKAIA
WAIOHINUKAMAOA-PUUEO
WAILAU
OLAA-KURTISTOWN
MAKUU/KEONEPOKO
HONOMU-KUHUA
LOWER PIIHONUA
KEAUKAHA/WAIAKEA/PANAEWA
HUMUULA/PIIHONUA
HILO SCATTEREDLOTS
DHHL Lands -Hawaii
Technical ApproachInitial Challenges
• LDD and LMD only administer short-term projects (5-year time frame)
• Project data to varying degrees of development
• Project data does not account for Low, Medium and High demand projections
DEM
AN
D (
MG
D)
2012 2021 2026 2031
PROJECTED DEMAND
2013 2014 2015 2016
HIGH DEMAND PROJECTIONMEDIUM DEMAND PROJECTIONLOW DEMAND PROJECTION
PROJECTED POPULATION GROWTH
Technical ApproachAdditional Requirements
• Extensive coordination with DHHL Office of Planning
• Review additional data sources – DHHL Island PlansGenerate list of long-term projects and water
demand data
Technical ApproachDHHL Island Plans
• 4 Island Plans (Kauai, Maui, Molokai and Hawaii) developed between 2002 – 2004
• 20-year timeframe• 10 DHHL Land Use designations• Land use analysis and breakdown for
each DHHL tract• Identified priority tracts and proposed
phasing
Technical ApproachDHHL Island Plans (cont’d)
• Extracted development data (areas and unit counts) by land use designation for each tract
• Applied water demand unit rate based on Water System Standards (potable and non-potable)
• Hawaii Island – water resources study prepared for DHHL in 2002
Technical ApproachRefinements and Solutions
• Island Plans are 8 to 10 years oldDHHL acknowledges Island Plans are current
(ie. timeline begins in 2012)
• Proposed development within “Special District” and “General Agriculture” land use designations sometimes ambiguousFurther examine each Special District area
and propose specific land use
Technical ApproachRefinements and Solutions (cont’d)
• Data does not account for Low, Medium & High demand projectionsRange of lot sizes for residential, agricultural
and pastoral land use
• Timelines and development data may differ from current projectsCoordinate with LDD and LMD to verify data
and adjust Island Plan data as necessary
Technical ApproachRefinements and Solutions (cont’d)
• Island Plan for Oahu currently in developmentOahu lands predominantly built out or in
development; defer to current project list
Preliminary Findings
WAIMEAPotable: 0.4 mgdNonpotable: 9.2 mgd
KEKAHAPotable: 0.7 mgdNonpotable: 0 mgd
HANAPEPEPotable: 0.4 mgdNonpotable: 0.4 mgd
WAILUAPotable: 0.6 mgdNonpotable: 0.5 mgd
ANAHOLAPotable: 1.3 mgdNonpotable: 4.9 mgd
MOLOAAPotable: 0.03 mgdNonpotable: 0.6 mgd
KAPAAPotable: 0.003 mgdNonpotable: 0 mgd
DHHL 2031 Water Demands - Kauai
HONOKOWAIPotable: 0.5 mgdNonpotable: 0 mgd
WAIEHUPotable: 0.02 mgdNonpotable: 0 mgd
PAUKUKALOPotable: 0.01 mgdNonpotable: 0 mgd
WAILUKUPotable: 0.001 mgdNonpotable: 0.4 mgd
PUUNENEPotable: 1.7 mgdNonpotable: 0 mgd
KEOKEA/WAIOHULIPotable: 0.8 mgdNonpotable: 0.9 mgd
KALIHI/KANAHENAKULALAPAAHIHIPotable: 0 mgdNonpotable: 0 mgd
ULUPALAKUAPotable: 0.003 mgdNonpotable: 0 mgd
KAHIKINUIPotable: 0.5 mgdNonpotable: 0 mgd
WAIKUPotable: 0.1 mgdNonpotable: 0.4 mgd
WAILUAPotable: 0.007 mgdNonpotable: 0.1 mgd
KEANAEPotable: 0.02 mgdNonpotable: 0.3 mgd
LEALIIPotable: 0.2 mgdNonpotable: 0 mgd
DHHL 2031 WaterDemands - Maui
HOOLEHUAPotable: 0.5 mgdNonpotable: 10.7 mgd
KALAMAULAPotable: 0.5 mgdNonpotable: 7.8 mgd
KAPAAKEA/KAMILOLOAMAKAKUPAIAPotable: 0.2 mgdNonpotable: 0 mgd
UALAPUEPotable: 0.05 mgdNonpotable: 0 mgd
KALAUPAPAPotable: 0.4 mgdNonpotable: 0 mgd
DHHL 2031 WaterDemands - Molokai
KALAOAPotable: 1.3 mgdNonpotable: 0 mgd
KEALAKEHEPotable: 1.4 mgdNonpotable: 0 mgd
HONOKOHAU/KEAHUOLUPotable: 0.7 mgdNonpotable: 0 mgd
KAWAIHAEPotable: 2.0 mgdNonpotable: 0 mgd
PAUAHI/KEONIKIPotable: 0.004 mgdNonpotable: 0 mgd
LALAMILOPotable: 0.3 mgdNonpotable: 0 mgd
KAMOKU-KAPULENA/NIENIEPotable: 0 mgdNonpotable: 0 mgd
PUUKAPUPotable: 0.1 mgdNonpotable: 0.3 mgd
HONOKAIAPotable: 1.2 mgdNonpotable: 0 mgd
WAIOHINUKAMAOA-PUUEOPotable: 0.8 mgdNonpotable: 0 mgd
WAILAUPotable: 0.05 mgdNonpotable: 0 mgd
OLAA-KURTISTOWNPotable: 0.03 mgdNonpotable: 0 mgd
MAKUU/KEONEPOKOPotable: 1.3 mgdNonpotable: 0 mgd
HONOMU-KUHUAPotable: 1.1 mgdNonpotable: 0 mgd
LOWER PIIHONUAPotable: 0.9 mgdNonpotable: 0 mgd
KEAUKAHA/WAIAKEA/PANAEWAPotable: 2.0 mgdNonpotable: 0 mgd
HUMUULA/PIIHONUAPotable: 0.2 mgdNonpotable: 0 mgd
HILO SCATTEREDLOTSPotable: 0.04 mgdNonpotable: 0 mgd
DHHL 2031 WaterDemands - Hawaii
Technical ApproachNext Steps
• Continue to work with DHHL Office of Planning to refine demand projection data
• Finalize demand projectionsSummer 2012
• Identify water development strategies• Prepare SWPP ReportAnticipated completion Fall 2013
Questions / Comments?
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