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SECOND CONFERENCE ONSECOND CONFERENCE ON

Water Resource SustainabilityWater Resource SustainabilityIssues on Tropical IslandsIssues on Tropical Islands

Hilton Hawaiian Village HotelHilton Hawaiian Village HotelHonolulu, HawaiiHonolulu, Hawaii

CONFERENCECONFERENCEPROGRAMPROGRAM

D E C E M B E R 1 – 3D E C E M B E R 1 – 3

ORGANIZED AND SPONSORED BYWater Resources Research Center

University of Hawaii at Manoa

Water and Environmental Research Institute of the Western PacificUniversity of Guam

Puerto Rico Water Resources and Environmental Research Institute University of Puerto Rico

Virgin Islands Water Resources Research InstituteUniversity of the Virgin Islands

CO-SPONSORED BYAmerican Samoa Power Authority

Geology & Geophysics, University of Hawaii at ManoaSea Grant College Program, University of Hawaii at Manoa

USGS Pacific Islands Water Science Center, Honolulu, HawaiiUnited States Geological Survey

CONFERENCE AT A GLANCE2015 Water Resource Sustainability Issues on Tropical IslandsTuesday, December 1, 2015

07:00–09:00 Registration / Continental Breakfast

08:00–09:30Welcome/Introductions by Conference Chair Aly I. El-Kadi–Video welcome from Hawaii Senator Mazie Hirono –Presentations by Earl Greene (USGS) and Center/Institute Directors (Shahram Khosrowpanah, Jorge Rivera- Santos, Kristin Wilson Grimes, and Darren Lerner)–Panel discussion by Center/Institute Directors, Earl Greene (USGS), Stephen Anthony (USGS PIWSC), andDavid Sumner (USGS Caribbean-Florida Water Science Center)

09:30–10:45SESSION A: Sustainability Groundwater and Watershed Studies, Part 1 ( Session Chair: Henry Smith)

10:45–11:00Break

11:00–12:15SESSION B: Water Resources Exploration (Session Chair: Darren Lerner)

12:15–13:15Lunch

13:15–15:20SESSION C: Protection Strategies for Island Watersheds and Aquifers (Session Chair: Jorge Rivera Santos)

15:20–15:35Break

15:35–16:25SESSION C (continued)

16:25–17:15SESSION D: Water Quality: Application of Techology and Adaptive Management(Session Chair: Roger Fujioka)

Wednesday, December 2, 2015


08:30–09:20SESSION E: Water Quality: Surface Water (Session Chair: Roger Fujioka)

09:20–10:10SESSION F: Water Quality: Outreach and Education (Session Chair: Roger Fujioka)

10:10–10:25Break

10:25–12:05SESSION G: Climate Change and Variability and Impacts on Water Resources, Part 1 (Session Chair: Stephen Anthony)

12:05–13:30Lunch/Speaker: Senator Thomas Ada (invited)

13:30–15:10SESSION H: Coastal Groundwater (Session Chair: Shahram Khosrowpanah)

15:10–15:25Break

15:25–16:15SESSION I: Water Quality: Groundwater and Surface Water (Session Chair: Roger Fujioka)

16:15–17:05SESSION J: Sustainability Groundwater and Watershed Studies, Part 2 (Session Chair: Henry Smith)

17:05–19:00SESSION P: Poster Session (Session Chair: Philip Moravcik)Poster Session/Reception

Thursday, December 3, 2015

07:00–09:00Registration / Continental Breakfast

08:30–09:45SESSION K: Sustainability Groundwater and Watershed Studies, Part 3 (Session Chair: Earl Greene)

09:45–10:10SESSION L: Sustainability Integrated Programs (Session Chair: Earl Greene)

10:10–10:25Break

10:25–11:40SESSION L (continued)

11:40–12:05SESSION M: Managing Demands and Supplies, Including Water Conservation and Reuse (Session Chair: Shahram Khosrowpanah)

12:05–13:30Lunch/Speaker: Josh Stanbro (invited)

13:30–14:45SESSION M (continued)

14:45–15:10SESSION N: Climate Change and Variability and Impacts on Water Resources, Part 2(Session Chair: Stephen Anthony)

15:10–15:25Break

15:25–16:15SESSION N (continued)

16:15–17:30SESSION O: Sustainability Groundwater and Watershed Studies, Part 4 (Session Chair: Henry Smith)

ORGANIZED BY: Water Resources Research Center, UHM • Water and Environmental Research Institute of the Western Pacific •

Puerto Rico Water Resources and Environmental Research Institute • Virgin Islands Water Resources Research Institute

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Dear Conference Participant:

Aloha!

On behalf of the sponsors and the Technical Advisory Committee, I would like to welcome youto the 2015 Second Conference on Water Resource Sustainability Issues on Tropical Islands.Island c ommunities are faced with a unique set of environmental and cultural issues pertinent tothe management of water resources. Fresh water resources are under threat on many islands asthe result of both overuse and contamination. Ocean waters in these tropical regions are ecologically

sensitive and valuable, and similarly threatened by pollution. On some islands, sea level rise is degrading groundwaterresources.

Most island communities are heavily dependent on importing essentials, such as food, fuel, and manufactured goodsto satisfy their resource needs. In addition, population growth is putting increasing pressure on water resources. Itis imperative that these threats to the welfare of island communities be addressed by sound scientific research beforethey reach crisis proportions. To prevent water shortages, sustainable management and protection of island watersupplies is even more critical than it is on the continents, as island communities have no water resources for importation.Those tasked with resource protection and management need access to scientifically sound research that is specificto island environments.

The above issues are universal to island states, yet researchers in these far-flung and isolated places seldom have theopportunity to share knowledge and experience with one another, as they mainly work in isolation. The great distancethat separates most island states from the larger centers of academia and government means that there is a less frequentexchange between researchers on the islands and their colleagues in the major population centers. Enhancedcommunication and collaboration between island researchers can provide a vital, synergistic link, which will strengthenall research programs. It is a truism that the greatest scientific advances usually result from a collaboration of researchersworking together.

This meeting is divided into sessions covering a wide range of critical issues related to water resources sustainability,water quality, climate change and its impacts on water resources, water resources exploration, protection strategiesfor water resources, managing water demands and supplies, and coastal groundwater. Please take time to view theposter presentations that will be on display Day 2, December 2. The authors will be available to entertain your questionsduring the reception starting at 5:00 pm.

Finally, I wish to thank the sponsors and co-sponsors of this conference, and the technical advisory and organizingcommittees. I also wish to express my appreciation for the great help received from the WRRC staff and students.

Mahalo, and I hope you enjoy what I expect to be a very strong program and that the conference will be a great startfor future collaboration.

Aly I. El-KadiConference Chairman

WELCOME

SPONSORS of the 2015 Water Resource Sustainability Issues on Tropical Islands Conference

W R R C

Water Resources Research CenterUniversity of Hawaii at Manoa

Puerto Rico Water Resources andEnvironmental Research Institute

University of Puerto Rico

Virgin Islands WaterResources Research InstituteUniversity of the Virgin Islands

Water and Environmental ResearchInstitute of the Western Pacific

University of Guam

National Institutes forWater Resources

American Samoa Power Authority

United States Geological Surveyand

USGS Pacific Islands Water ScienceCenter, Honolulu, Hawaii

Sea Grant College ProgramUniversity of Hawaii at Manoa

Geology and GeophysicsUniversity of Hawaii at Manoa

University of Hawai‘iManoa Bookstore-


ACKNOWLEDGMENTSCONFERENCE ORGANIZED AND SPONSORED BYWater Resources Research CenterUniversity of Hawaii at Manoa(www.wrrc.hawaii.edu)

Water and Environmental Research Institute of theWestern PacificUniversity of Guam(www.weriguam.org)

Puerto Rico Water Resources and Environmental ResearchInstituteUniversity of Puerto Rico(http://prwreri.uprm.edu/)

Virgin Islands Water Resources Research InstituteUniversity of the Virgin Islands (http://www.uvi.edu/research/water-resources-research-institute/default.aspx)

SESSION CHAIRSStephen Anthony, Director, USGS Pacific Islands Water ScienceCenter, Honolulu, Hawaii

Roger Fujioka, WRRC; School of Public Health, UHM

Earl Greene, Chief, Office of External Research, USGS

Shahram Khosrowpanah, Director, Water and EnvironmentalResearch Institute of the Western Pacific, University of Guam

Darren T. Lerner, Interim Director, WRRC; Director, Sea GrantCollege Program, UHM

Philip Moravcik, WRRC, UHM

Jorge Rivera-Santos, Director, Puerto Rico Water Resources andEnvironmental Research Institute

Henry Smith, Former Director, Virgin Islands Water ResourcesResearch Institute

Support StaffEnjy El-Kadi April KamBarbara Guieb Kevin NishimuraPatricia Hirakawa

CONFERENCE ORGANIZING COMMITTEE ANDTECHNICAL ADVISORSAly I. El-Kadi, Associate Director, WRRC; Professor, Dept. ofGeology & Geophysics, SOEST, UHM

Stephen Anthony, Director, USGS Pacific Islands Water ScienceCenter, Honolulu, Hawaii

Tim Bodell, American Samoa EPA

Roger Fujioka, former Director, WRRC; Professor Emeritus,School of Public Health, UHM

Earl Greene, Chief, Office of External Research, USGS

Shahram Khosrowpanah, Director, Water and EnvironmentalResearch Institute of the Western Pacific, University of Guam

Darren T. Lerner, Interim Director, WRRC; Director, Sea GrantCollege Program, UHM

Utu Abe Malae, Executive Director, American Samoa PowerAuthority

Philip Moravcik, WRRC, UHM

Jorge Rivera-Santos, Director, Puerto Rico Water Resources andEnvironmental Research Institute

Walter F. Silva-Araya, Associate Director, Puerto Rico WaterResources and Environmental Research Institute

Henry Smith, Former Director, Virgin Islands Water ResourcesResearch Institute

Kristin Wilson Grimes, Director, Virgin Islands Water ResourcesResearch Institute

Abbreviations:

EPA Environmental Protection Agency

DLNR Department of Land and Natural Resources

PIWSC Pacific Islands Water Science Center

SOEST School of Ocean and Earth Science and Technology

UHM University of Hawaii at Manoa

USGS United States Geological Survey

WERI Water and Environmental Research Institute of theWestern Pacific

WRRC Water Resources Research Center

CONFERENCE CO-SPONSORSAmerican Samoa Power Authority(www.aspower.com/)

Geology & GeophysicsUniversity of Hawaii at Manoa(http://www.soest.hawaii.edu/GG/)

Sea Grant College ProgramUniversity of Hawaii at Manoa(http://seagrant.soest.hawaii.edu/)

USGS Pacific Islands Water Science Center, Honolulu, Hawaii(http://hi.water.usgs.gov/)

United States Geological Survey(http://www.usgs.gov/)

CONTRIBUTING SUPPORTERSNational Institutes for Water Resources(https://niwr.net)

University of Hawai‘i Manoa Bookstore(www.bookstore.hawaii.edu/manoa)

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12:15–13:15Lunch


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Water Resource SustainabilityIssues on Tropical Islands PROGRAM

Tuesday, December 1, 2015 (presenters are highlighted in bold)

07:00 – 09:00 Registration / Continental Breakfast

08:00 – 09:30 Welcome/Introductions by Conference Chair Aly I. El-Kadi– Video welcome from Hawaii Senator Mazie Hirono – Presentations by Earl Greene (USGS) and Center/Institute Directors (Shahram Khosrowpanah, Jorge Rivera-

Santos, Kristin Wilson Grimes, and Darren Lerner)– Panel discussion by Center/Institute Directors, Earl Greene (USGS), Stephen Anthony (USGS PIWSC), and David

Sumner (USGS Caribbean-Florida Water Science Center)

SESSION A • Sustainability Groundwater and Watershed Studies, Part 1 — Session Chair: Henry Smith

09:30 – 09:55 Nathan C. Habana, John W. Jenson, and Stephen B. Gingerich. Exploring Best-Practice Capacities of the NorthernGuam Lens Aquifer.

09:55 – 10:20 Delwyn S. Oki. Unraveling the Role of Deep Groundwater Circulation on the Coastal Freshwater-Lens System of Kona, Hawai‘i Island.

10:20 – 10:45 Paula A. Cutillo. Determining Groundwater Sustainability—A Public-Trust Resource Perspective.

10:45 – 11:00 Break

SESSION B • Water Resources Exploration — Session Chair: Darren Lerner

11:00 – 11:25 Susan S. Hubbard (invited), Haruko Wainwright, Anh Phuong Tran, Craig Ulrich, Michael Commer, and Baptiste Dafflon. Next-Generation Geophysical Characterization of Watersheds.

11:25 – 11:50 Donald M. Thomas, Robert B. Whittier, and Nicole Lautze. Recent Findings of the Humu‘ula Groundwater ResearchProject and Implications for Groundwater Modeling.

11:50 – 12:15 J. Lelemia Irvine and Oceana P. Francis. Island Sust‘ainability: Rooftop Rainwater Harvesting Study forMoku-o-Lo‘e, O‘ahu, Hawaiian Islands.

12:15 – 13:15 Lunch

SESSION C • Protection Strategies for Island Watersheds and Aquifers — Session Chair: Jorge Rivera-Santos

13:15 – 13:40 Chittaranjan Ray (invited). Understanding the Fate of Chemicals in Tropical Environments Site to Regional Scales.

13:40 – 14:05 Shahram Khosrowpanah, Mark Lander, Sydonia Manibusan, Bill Whitman, and John Jocson. Watershed Management: Ugum, Piti-Asan, Geus Watershed.

14:05 – 14:30 Scot K. Izuka. Assessing Groundwater Availability in Hawai‘i’s Diverse Hydrogeologic Settings.

14:30 – 14:55 Mohammad H. Golabi and Sydonia Manibusan. In Situ Monitoring of Watershed Following ‘Revegetation’ Effortsfor Reducing Sedimentation and Improving Water Quality in the Micronesian Island of Rota, CNMI.

14:55 – 15:20 Robert E. Bourke, Natalie Waters, and Jordan Moniuszko. Kaelepulu: An Investigation of Flow Restoration, Mixingand Exchange in an Urbanized Estuary to Help Define Restoration Alternatives.

15:20 – 15:35 Break

SESSION C • Continued — Session Chair: Jorge Rivera-Santos

15:35 – 16:00 Donald E. Heacock and Michael H. Kido. Restoring Ecological Integrity in Hawaiian “Mountain-to-Sea” Environments.

16:00 – 16:25 Paul J. Kemp. Community Management of Water Resources and Delivery.

SESSION D • Water Quality: Application of Techology and Adaptive Management — Session Chair: Roger Fujioka

16:25 – 16:50 Joseph D. Rouse. Studies of Enhancement of Sewage Treatment and Composting of Sludge on Yap Island.

16:50 – 17:15 Amanda L. Cording and Stephanie E. Hurley. Adapting Bioretention (Rain Garden) Designs to Maximize Nutrient and Sediment Pollution Removal from Stormwater.

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CONFERENCE AT A GLANCE2015 Water Resource Sustainability Issues on Tropical Islands

Tuesday, December 1, 2015



Santos, Kristin Wilson Grimes, and Darren Lerner)– Panel discussion by Center/Institute Directors, Earl Greene (USGS), Stephen Anthony (USGS PIWSC), and

David Sumner (USGS Caribbean-Florida Water Science Center)

09:30 – 10:45 SESSION A: Sustainability Groundwater and Watershed Studies, Part 1 (Session Chair: Henry Smith)

10:45 – 11:00 Break

11:00 – 12:15 SESSION B: Water Resources Exploration (Session Chair: Darren Lerner)

12:15 – 13:15 Lunch

13:15 – 15:20 SESSION C: Protection Strategies for Island Watersheds and Aquifers (Session Chair: Jorge Rivera Santos)

15:20 – 15:35 Break

15:35 – 16:25 SESSION C (continued)

16:25 – 17:15 SESSION D: Water Quality: Application of Techology and Adaptive Management(Session Chair: Roger Fujioka)



08:30 – 09:20 SESSION E: Water Quality: Surface Water (Session Chair: Roger Fujioka)

09:20 – 10:10 SESSION F: Water Quality: Outreach and Education (Session Chair: Roger Fujioka)

10:10 – 10:25 Break

10:25 – 12:05 SESSION G: Climate Change and Variability and Impacts on Water Resources, Part 1 (Session Chair: Stephen Anthony)

12:05 – 13:30 Lunch/Speaker: Senator Thomas Ada (invited)

13:30 – 15:10 SESSION H: Coastal Groundwater (Session Chair: Shahram Khosrowpanah)

15:10 – 15:25 Break

15:25 – 16:15 SESSION I: Water Quality: Groundwater and Surface Water (Session Chair: Roger Fujioka)

16:15 – 17:05 SESSION J: Sustainability Groundwater and Watershed Studies, Part 2 (Session Chair: Henry Smith)

17:05 – 19:00 SESSION P: Poster Session (Session Chair: Philip Moravcik)Poster Session/Reception



08:30 – 09:45 SESSION K: Sustainability Groundwater and Watershed Studies, Part 3 (Session Chair: Earl Greene)

09:45 – 10:10 SESSION L: Sustainability Integrated Programs (Session Chair: Earl Greene)

10:10 – 10:25 Break

10:25 – 11:40 SESSION L (continued)

11:40 – 12:05 SESSION M: Managing Demands and Supplies, Including Water Conservation and Reuse (Session Chair: Shahram Khosrowpanah)

12:05 – 13:30 Lunch/Speaker: Josh Stanbro (invited)

13:30 – 14:45 SESSION M (continued)

14:45 – 15:10 SESSION N: Climate Change and Variability and Impacts on Water Resources, Part 2(Session Chair: Stephen Anthony)

15:10 – 15:25 Break

15:25 – 16:15 SESSION N (continued)

16:15 – 17:30 SESSION O: Sustainability Groundwater and Watershed Studies, Part 4 (Session Chair: Henry Smith)

ORGANIZED BY: Water Resources Research Center, UHM • Water and Environmental Research Institute of the Western Pacific •Puerto Rico Water Resources and Environmental Research Institute • Virgin Islands Water Resources Research Institute





SESSION E • Water Quality: Surface Water — Session Chair: Roger Fujioka

08:30 – 08:55 Stanley B. Grant (invited), Asal Askarizadeh, and Megan A. Rippy. From Rain Tanks to Catchments: Use of Low-Impact Development to Address Hydrologic Symptoms of the Urban Stream Syndrome.

08:55 – 09:20 Pedro J. Tarafa, Sheila Arias, Leroy Goñez, and O. Marcelo Suarez. Micro- and Nanosized Titanium Dioxide Particles Immobilized in Sintered Recycled Glass for the Degradation of Trihalomethane Precursors from Surface Waters.

SESSION F • Water Quality: Outreach and Education — Session Chair: Roger Fujioka

09:20 – 09:45 Ali Fares (invited). The Water-Energy-Food Nexus for Small Islands: Challenges and Opportunites.09:45 – 10:10 Mary J. Donohue, Chantal Chung, Matthew J. Gonser, and Patricia Macomber. Increasing Access to Safe Drinking

Water for Rural Hawai‘i Island Communities Utilizing Rainwater Catchment.

10:10 – 10:25 Break

SESSION G • Climate Change and Variability and Impacts on Water Resources, Part 1 — Session Chair: Stephen Anthony

10:25 – 10:50 Charles Fletcher (invited), Tiffany Anderson, and Matthew Barbee. Sea Level Rise Impacts in Hawaii.

10:50 – 11:15 Pao-Shin Chu, Chris O’Conner, Pang-Chi Hsu, and Kevin Kodama. Variability of Hawaiian Winter Rainfall During La Niña Events.

11:15 – 11:40 Md. Rashed Chowdhury. Water, Climate, and Local Governance: Experience from the Pacific Islands.

11:40 – 12:05 H. Annamalai. Unprecedented El Niño of 2015–16: Rainfall Outlook for the Pacific Islands.


SESSION H • Coastal Groundwater — Session Chair: Shahram Khosrowpanah

13:30 – 13:55 Clare Robinson (invited). Impact of Waves and Tides on Coastal Groundwater Dynamics and Pollutant Dischargeto the Sea.

13:55 – 14:20 Isaac Santos (invited). Tropical Islands as Submarine Groundwater Discharge Hotspots.

14:20 – 14:45 Henrietta Dulai, Alana Kleven, Kathleen C. Ruttenberg, Rebecca A. Briggs, and Florence I.M. Thomas. SubmarineGroundwater Discharge and Corresponding Nutrient Fluxes in Kaneohe Bay, Oahu.

14:45 – 15:10 Craig R. Glenn, Joseph J. Kennedy, Henrietta Dulai, Paul G. Lucey, Jacque L. Kelly, and Joseph K. Fackrell. Coupling Aerial Infrared Imaging from Aircraft and Drone with Radon Time Series for Mapping and Quantifying Groundwater and Nutrient Discharge from Coastal Aquifers.

15:10 – 15:25 Break

SESSION I • Water Quality: Groundwater and Surface Water — Session Chair: Roger Fujioka

15:25 – 15:50 Gary R.W. Denton, Carmen Sian-Denton, and Nathan C. Habana. Dieldrin: An Unregulated Drinking Water Contaminant of Potential Concern in Guam’s Groundwater.

15:50 – 16:15 Eric Heinen De Carlo, Nathan Klinkhammer, Gary Klinkhammer, Chris Russo, and Randy Bremer. Use of an Automated Device Based on Zero Angle Photon-Spectroscopy (ZAPS) for Real-Time Monitoring of Biological andChemical Pollutants of the Ala Wai Marina, Honolulu, Hawaii.

SESSION J • Sustainability Groundwater and Watershed Studies, Part 2 — Session Chair: Henry Smith

16:15 – 16:40 M. Kirs, E.A. Kearns, S.M. Castillo, D.V. Lim, and R.S. Fujioka. High-Volume Ultrafiltration: Going Beyond IndicatorBacteria.

16:40 – 17:05 Hla Htun and Kirsten L.L. Oleson. Evaluating Hydrologic Ecosystem Services Models for Use in Hawaii.

SESSION P • Poster Session — Session Chair: Philip Moravcik

17:05 – 19:00 Poster Session (see “Posters” section for details) / Reception

CONFERENCE AT A GLANCE2015 Water Resource Sustainability Issues on Tropical Islands

Tuesday, December 1, 2015



Santos, Kristin Wilson Grimes, and Darren Lerner)– Panel discussion by Center/Institute Directors, Earl Greene (USGS), Stephen Anthony (USGS PIWSC), and

David Sumner (USGS Caribbean-Florida Water Science Center)

09:30 – 10:45 SESSION A: Sustainability Groundwater and Watershed Studies, Part 1 (Session Chair: Henry Smith)

10:45 – 11:00 Break

11:00 – 12:15 SESSION B: Water Resources Exploration (Session Chair: Darren Lerner)

12:15 – 13:15 Lunch

13:15 – 15:20 SESSION C: Protection Strategies for Island Watersheds and Aquifers (Session Chair: Jorge Rivera Santos)

15:20 – 15:35 Break

15:35 – 16:25 SESSION C (continued)

16:25 – 17:15 SESSION D: Water Quality: Application of Techology and Adaptive Management(Session Chair: Roger Fujioka)



08:30 – 09:20 SESSION E: Water Quality: Surface Water (Session Chair: Roger Fujioka)

09:20 – 10:10 SESSION F: Water Quality: Outreach and Education (Session Chair: Roger Fujioka)

10:10 – 10:25 Break

10:25 – 12:05 SESSION G: Climate Change and Variability and Impacts on Water Resources, Part 1 (Session Chair: Stephen Anthony)


13:30 – 15:10 SESSION H: Coastal Groundwater (Session Chair: Shahram Khosrowpanah)

15:10 – 15:25 Break

15:25 – 16:15 SESSION I: Water Quality: Groundwater and Surface Water (Session Chair: Roger Fujioka)

16:15 – 17:05 SESSION J: Sustainability Groundwater and Watershed Studies, Part 2 (Session Chair: Henry Smith)

17:05 – 19:00 SESSION P: Poster Session (Session Chair: Philip Moravcik)Poster Session/Reception



08:30 – 09:45 SESSION K: Sustainability Groundwater and Watershed Studies, Part 3 (Session Chair: Earl Greene)

09:45 – 10:10 SESSION L: Sustainability Integrated Programs (Session Chair: Earl Greene)

10:10 – 10:25 Break

10:25 – 11:40 SESSION L (continued)

11:40 – 12:05 SESSION M: Managing Demands and Supplies, Including Water Conservation and Reuse (Session Chair: Shahram Khosrowpanah)


13:30 – 14:45 SESSION M (continued)

14:45 – 15:10 SESSION N: Climate Change and Variability and Impacts on Water Resources, Part 2(Session Chair: Stephen Anthony)

15:10 – 15:25 Break

15:25 – 16:15 SESSION N (continued)

16:15 – 17:30 SESSION O: Sustainability Groundwater and Watershed Studies, Part 4 (Session Chair: Henry Smith)

ORGANIZED BY: Water Resources Research Center, UHM • Water and Environmental Research Institute of the Western Pacific •Puerto Rico Water Resources and Environmental Research Institute • Virgin Islands Water Resources Research Institute





SESSION K • Sustainability Groundwater and Watershed Studies, Part 3 — Session Chair: Earl Greene

08:30 – 08:55 Kolja Rotzoll, Scot K. Izuka, Tracy Nishikawa, Michael N. Fienen, and Aly I. El-Kadi. Quantifying Effects of Humansand Climate on Groundwater Resources Through Modeling of Volcanic-Rock Aquifers of Hawaii.

08:55 – 09:20 Leroy F. Heitz and Shahram Khosrowpanah. Using a Geographic Information System to Predict Flow Duration Curves at Ungaged Stream Sites in Guam.

09:20 – 09:45 Chris Shuler, Aly El-Kadi, Henrietta Dulai, Craig R. Glenn, and Joseph Fackrell. Water Resource Challenges and the Updated Conceptual Hydrological Model of Tutuila Island, American Samoa.

SESSION L • Sustainability Integrated Programs — Session Chair: Earl Greene

09:45 – 10:10 David Sumner for Rafael W. Rodriguez (invited). Water Resource Sustainability Issues—Puerto Rico and U.S. VirginIslands.

10:10 – 10:25 Break

SESSION L • Continued — Session Chair: Earl Greene

10:25 – 10:50 John A. Engott and Stephen M. Westenbroek. Developing a Unified Soil-Water-Balance Model for Tropical and Continental Settings.

10:50 – 11:15 Melinda S. Dalton. USGS Water Availability and Use Science Program.

11:15 – 11:40 Sarah N. Rosa and Lauren E. Hay. Southern Guam Watershed Model: Current and Potential Applications.

SESSION M • Managing Demands and Supplies, Including Water Conservation and Reuse — Session Chair: ShahramKhosrowpanah

11:40 – 12:05 L. Stephen Lau (invited) and Ronald D.S. Lau. Historical Episodes of Water Sustainability in Hawai‘i.


SESSION M • Continued — Session Chair: Shahram Khosrowpanah

13:30 – 13:55 Roger Babcock, Jr. Sustainable Water Supply Expansion Using Satellite Reclamation of Wastewater in Honolulu.

13:55 – 14:20 Daniele Spirandelli, Michael Roberts, Kimberly Burnett, and Christopher Wada. Toward an Understanding of Residential Water Conservation Behaviors on Oahu.

14:20 – 14:45 Oscar J. Abelleira Martínez. Tradeoffs of Water Use and Carbon Sequestration in Incentivized Reforestation in the Seasonally Dry Tropics.

SESSION N • Climate Change and Variability and Impacts on Water Resources, Part 2 — Session Chair: Stephen Anthony

14:45 – 15:10 Mark Lander, Charles Guard, and Shahram Khosrowpanah. Damaging Typhoons and Major Drought: The Ongoingand Forecast Effects of the 2015 El Niño in the Tropical Pacific.

15:10 – 15:25 Break

15:25 – 15:50 Olkeba Tolessa Leta, Aly I. El-Kadi, Henrietta Dulai, and Kariem A. Ghazal. Hydrological Modeling and Climate Change Impact Assessment for Heeia (Hawaii) Watershed.

15:50 – 16:15 Shellie L. Habel, Charles H. Fletcher, and Matthew Barbee. Sea Level Rise Induced Groundwater Inundation andSoil Accommodation Space Narrowing in Honolulu, Hawaii.

SESSION O • Sustainability Groundwater and Watershed Studies, Part 4 — Session Chair: Henry Smith

16:15 – 16:40 Amandine L. Bosserelle, Vincent E.A. Post, Adrian D. Werner, and Peter Sinclair. Impact Assessment of a FreshwaterLens on Atoll Islands Using Numerical Modeling.

16:40 – 17:05 Kim A. Falinski, Perrine Hamel, Daniel Fuka, and Kirsten Oleson. Sediment Export with Changing Land Use in Leeward Hawaiian Watersheds.

17:05 – 17:30 Walter F. Silva-Araya, Yasmín Detrés, and Jorge San Juan. Potential Use of Halophytes in Conservation Buffers Near Coastal Areas.





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Water Resource SustainabilityIssues on Tropical Islands POSTERS

Wednesday, December 2, 2015 SESSION P • Poster Session — Session Chair: Philip Moravcik

SESSION P-1: Sustainability (presenters are highlighted in bold)

• Ripendra Awal, Ali Fares, Samira Fares, Hector Valenzuela, and Rosslyn Harris. Optimum Turf Irrigation Management MinimizesIrrigation Water, Saves Energy, and Reduces CO2 Emission: Case of O‘ahu Public Schools.

• Ken Carlson, Jim Mothersbaugh, Bernard Rozet, Reagan Waskom, and Jeff Steiner. Reusing Wastewater Effluent for AgriculturalIrrigation: Proposed Lahaina Application.

• John Jun Dai and Clark C.K. Liu. RAM, RAM2, and What’s Next?

• Christopher Holloway and Pao-Shin Chu. Assessment of CMIP5 Ensemble’s Initial Conditions Used for Dynamical Downscaling OverOahu, Hawaii.

• Jason Knoche, Joe Mcclure, and Dan Clegg. Reducing Irrigation Overuse Through Research into Precision Irrigation.

• L. Stephen Lau and John F. Mink. Hydrology of the Hawaiian Islands.

• Olkeba Tolessa Leta, Aly I. El-Kadi, Henrietta Dulai, and Kariem A. Ghazal. Evaluating the Performance of SWAT Model for SimulatingDaily Streamflow in Selected Watersheds of Oahu Island (Hawaii).

• Jason Levy and Peiyong Yu. Advances in Game-Theoretic Modeling for Disaster Risk Reduction Under Conditions of Climate Changein the Pacific Island Region.

• Ross Prizzia and Jason Levy. Interdisciplinary Hydro-Meteorological Disaster Resilience Education: The Disaster Preparedness andEmergency Management Program.

• Félix R. Román, José López-Morales, and Oscar Perales-Pérez. Recycled Tire Crumb Rubber to Remove Emerging Contaminantsand Halogenated Organic Compounds from Water.

• Kevin Trick and David B. Field. Determining the Effect of Large-Scale Climate on Rainfall Variability of the Main Hawaiian Island.

• Yin-Phan Tsang and Ayron M. Strauch. Modeling Stream Flow at a Leeward Watershed in Hawaii: Application to Water ResourceManagement Under the Threat of Wildfire.

• Stephen M. Westenbroek and John A. Engott. Assessing Water Availability in the Conterminous United States with the USGS Soil-Water-Balance Model.

• Peiyong Yu and Jason Levy. GIS and Semiparametric Analysis of the Effects of Wetland on Property Values in Oahu, Hawaii.

SESSION P-2: Water Quality

• Erin Allmann, Zi Wang, Si Sun, Marek Kirs, Mayee Wong, and Yuanan Lu. Monitoring of Hawai‘i’s Beaches Water Quality Using EntericViruses as Alternative Indicators.

• Daniel Amato, Christopher Shuler, Veronica Gibson, Lydia Baker, Celia M. Smith, and Rosie Alegado. Detecting Hot Spots for AlgalBlooms in Shallow Waters Around Tutuila, American Samoa.

• Patrick N. Casey. Keauhou Aquifer Hydrologic Monitoring.

• Steven L. Colbert. Hydrology of Warm Anchialine Ponds at Kapoho, Hawaii.

• Louise Economy and Tracy Wiegner. Staphylococcus aureus in Hilo Bay: Investigating Potential Associations with Water QualityParameters.

• Joseph K. Fackrell, Craig R. Glenn, Brian N. Popp, Robert B. Whittier, and Henrietta Dulai. Wastewater Injection, BiogeochemicalReactions, and Resultant Groundwater N Flux to Coastal Waters: Ka‘anapali, Maui, Hawai‘i.

• Jason Jaskowiak. Modified Leachfield Design for Highly Conductive Volcanic Substrates.

• Seo Jin Ki, Dong Jin Jeon, and Joon Ha Kim. Assessing Subsurface Vulnerability Potential to Pharmaceuticals Using a Geo-ProcessingTool.

• Clark C.K. Liu and Philip Moravcik. Survey and Modeling Analysis of HDOT MS4 Highway Storm Runoff on Oahu, Hawaii.

• William H. McDowell. Spatial and Temporal Variability in Urban Water Quality on a Tropical Island.

• Marcus Peng and Kirsten L.L. Oleson. What’s a Clean Beach Worth: Recreational Willingness to Pay for Coastal Water Quality.

• Christina M. Richardson and Henrietta Dulai. A Multi-Tracer Approach for Determining the Sources and Spatial Variability ofGroundwater-Delivered Nutrients to Coastal Waters: Maunalua Bay, O‘ahu, Hawai‘i.

• Megan A. Rippy. Meeting the Criteria: Linking Biofilter Design to Fecal Indicator Bacteria (FIB) Removal and Our Sustainable WaterFuture.

• Dayananda Vithanage. Impacts from Current Wastewater Management on Water Resources of Small Islands.

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10:45–11:00Break


12:15–13:15Lunch


15:20–15:35Break







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10:10–10:25Break






15:10–15:25Break










10:45–11:00Break


12:15–13:15Lunch


15:20–15:35Break







10:10–10:25Break




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15:10–15:25Break





Mahalo Conference ParticipantsFEATURED SPEAKERSU.S. Hawaii Senator Mazie Hirono, Washington, D.C.Senator Thomas Ada, 33rd Guam Legislature, Hagatna, GuamJosh Stanbro, Hawaii Community Foundation, Honolulu, HI

SESSION A • Sustainability Groundwater and Watershed Studies, Part 1John Jenson, Water and Environmental Research Institute of the Western Pacific,University of GuamDelwyn S. Oki, USGS, PIWSC, Honolulu, HIPaula A. Cutillo, National Park Service, Water Resources Divison, Fort Collins, CO

SESSION B • Water Resources ExplorationSusan Hubbard*, Earth and Environmental Sciences, Berkeley Lab, CADonald M. Thomas, Hawaii Institute of Geophysics and Planetology, UHMJ. Lelemia Irvine, Dept. of Civil and Environmental Engineering, UHM

SESSION C • Protection Strategies for Island Watersheds and AquifersChittaranjan Ray*, Nebraska Water Center, Robert B. Daugherty Water for FoodInstitute, University of NebraskaShahram Khosrowpanah, WERI, University of GuamScot K. Izuka, USGS, PIWSC, Honolulu, HIMohammad H. Golabi, College of Natural and Applied Sciences, University of GuamRobert E. Bourke, Oceanit Laboratories, Honolulu, HIDonald E. Heacock, Hawaii Division of Aquatic Resources, DLNR, Lihue, HIPaul J. Kemp, Guam Waterworks Authority, Mangilao, Guam

SESSION D • Water Quality: Application of Technlogy and AdaptiveManagementJoseph D. Rouse, WERI, University of GuamAmanda L. Cording, Plant and Soil Science Dept., University of Vermont

SESSION E • Water Quality: Surface WaterStanley B. Grant*, Dept. of Civil and Evironmental Engineering, UC IrvinePedro J. Tarafa, Dept. of Civil Engineering, University of Puerto Rico

SESSION F • Water Quality: Outreach and EducationAli Fares*, College of Agriculture and Human Science, Prairie View A&M UniversityMary J. Donahue, Sea Grant College Program, SOEST, UHM

SESSION G • Climate Change and Variability and Impacts on Water Resources,Part 1Charles Fletcher*, SOEST, UHMPao-Shin Chu, Dept. of Atmospheric Sciences, SOEST, UHMMd. Rashed Chowdhury, Pacific ENSO Applications Climate Center, Joint Institutefor Marine and Atmospheric Research, UHMH. Annamalai, International Pacific Research Center, UHM

SESSION H • Coastal GroundwaterClare Robinson*, Civil and Evironmental Engineering, Western University, CanadaIsaac Santos*, National Marine Science Centre, Southern Cross University, AustraliaHenrietta Dulai, Dept. of Geology & Geophysics, SOEST, UHMCraig R. Glenn, Dept. of Geology & Geophysics, SOEST, UHM

SESSION I • Water Quality: Groundwater and Surface WaterGary R.W. Denton, WERI, University of GuamEric Heinen De Carlo, Dept. of Oceanography, UHM

SESSION J • Sustainability Groundwater and Watershed Studies, Part 2Marek Kirs, WRRC, UHMHla Htun, Dept. of Natural Resources and Environmental Management, UHM

SESSION K • Sustainability Groundwater and Watershed Studies, Part 3Kolja Rotzoll, WRRC, UHMLeroy F. Heitz, WERI, University of GuamChristopher Shuler, Dept. of Geology & Geophysics, SOEST, UHM

SESSION L • Sustainability Integrated ProgramsRafael W. Rodriguez*, USGS Caribbean-Florida Water Science Center, Lutz, FLJohn Engott, USGS, PIWSC, Sacramento, CA

* Invited speaker.

SESSION L • Sustainability Integrated Programs—ContinuedMelinda Dalton, USGS, Water Availability and Use Science Program, Norcross, GASarah N. Rosa, USGS, PIWSC, Honolulu, HI

SESSION M • Managing Demands and Supplies, Including Water Conservationand ReuseL. Stephen Lau*, Dept. of Civil Engineering (Professor Emeritus); WRRC (formerDirector), UHMRoger Babcock Jr., WRRC, UHMDaniele Spirandelli, Dept. of Urban and Regional Planning, UHMOscar J. Abelleira Martínez, Dept. of Agroenvironmental Sciences, University ofPuerto Rico

SESSION N • Climate Change and Variability and Impacts on Water Resources,Part 2Mark Lander, WERI, University of GuamOlkeba Tolessa Leta, WRRC, UHMShellie L. Habel, Coastal Geology Group, Dept. of Geology & Geophysics, SOEST,UHM

SESSION O • Sustainability Groundwater and Watershed Studies, Part 4Amandine L. Bosserelle, Secretariat of the Pacific Community- Geoscience Division,Suva, FijiKim A. Falinski, Dept. of Tropical Plant and Soil Science, UHMWalter F. Silva-Araya, Dept. of Civil Engineering and Surveying, University ofPuerto Rico

SESSION P • Poster SessionSession P-1Ali Fares, College of Agriculture and Human Science, Prairie View A&M UniversityKen Carlson, Dept. of Civil and Environmental Engineering, Colorado StateUniversityJohn Jun Dai, Dept. of Civil and Evironmental Engineering, UHMChristopher Holloway, Dept. of Atmospheric Sciences, SOEST, UHMDan Clegg, Monsato Hawaii, Kihei, HIL. Stephen Lau, Civil Engineering (Professor Emeritus); WRRC (former Director),UHMOlkeba Tolessa Leta, WRRC, UHMJason Levy, Division of Public Administration, University of Hawaii–West OahuRoss Prizzia, Division of Public Administration, University of Hawaii–West OahuFélix R. Román, Dept. of Chemistry, University of Puerto RicoDavid B. Field, Hawaii Pacific UniversityYin-Phan Tsang, Dept. of Natural Resources and Environmental Management,Honolulu, HIStephen M. Westenbroek, USGS, Wisconsin Water Science Center, Middleton, WIPeiyong Yu, Social Science Division, University of Hawaii–West Oahu

Session P-2Yuanan Lu, Dept. of Public Health Sciences, UHMDaniel Amato, Dept. of Botany, UHMPatrick N. Casey, State of Hawaii DLNR, Honolulu, HISteven L. Colbert, Marine Science Dept., University of Hawaii at HiloLouise Economy, Tropical Conservation Biology and Environmental Science GraduateProgram, University of Hawaii at HiloJoseph K. Fackrell, Dept. of Geology & Geophysics, SOEST, UHMJason Jaskowiak, American Samoa Power AuthoritySeo Jin Ki, School of Environmental Science and Engineering, Gwangju Institute ofScience and Technology, Republic of KoreaPhilip Moravcik, WRRC, UHMWilliam H. McDowell, Dept. of Natural Resources and the Environment and NHWRRC, Durham, NHMarcus Peng, Dept. of Natural Resources and Environmental Management, UHMChristina M. Richardson, Dept. of Geology & Geophysics, SOEST, UHMMegan A. Rippy, Dept. of Civil and Environmental Engineering, University of CaliforniaIrvineDayananda Vithanage, Oceanit Laboratories, Inc., Honolulu, HI

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