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?