All Research

Microbial communities and sources of bacteria in Honolulu’s water supply

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/2015-02/29/2017

ABSTRACT:
The overarching goal of the project is to characterize microbial communities and sources of microbes in Honolulu’s water supply. This is the first in-depth analysis of microbes in
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Influence of Anthropogenic and Climatic Forcing on Water Quality Within a Tropical Coastal Ecosystem

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2015 – 2/28/2017

ABSTRACT:
The overarching goal of this work is to understand how microbial community structure and function in tropical coastal estuaries drive geochemical processes in response to climate
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Toward an understanding of residential water conservation behaviors on Oahu

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2015 – 2/28/2016

ABSTRACT:
More than half the world’s populations live in urban metropolitan areas with growth in the urban sector forecasted to continue (United Nations, Department of Economic and
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2015 WRRC Capacity Building and Science Communications for Groundwater Sustainability Work in American Samoa

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2015 – 2/28/2016

ABSTRACT:
The sustainability of groundwater use on Tutuila, the main island in American Samoa, is currently in question. Water demand is increasing and the island’s aquifers are
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Second Conference on Water Resource Sustainability Issues on Tropical Islands

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
2015

ABSTRACT:

Island communities are faced with a unique set of environmental and cultural issues pertinent to the management of water resources. Fresh water resources are under threat on many
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WRRC workshop in American Samoa

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2014 – 2/28/2016

ABSTRACT:

The Water Resources Research Center at University of Hawaii started to administer the State Water Resources Research Program for American Samoa in 2013. It was proposed
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Tsunami Observer Program

SPONSOR:
Department of Defense, State of Hawaii (Civil Defense Division)

PROJECT PERIOD:
03/01/2010-ongoing

ABSTRACT:

The mission of the Tsunami Observer Program (TOP) is to obtain accurate measurements of water run-up (elevation above mean sea level) and inundation distances resulting from tsunami waves for
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Forecasting Climate Change Impacts on Watershed-Based Ecosystem Services in Hawaii: A Participatory Modeling Approach

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2013 – 2/28/2014

ABSTRACT:

Hawaii’s watersheds have been and will continue to be degraded due to anthropogenic climate change, particularly in terms of habitat alteration for native, threatened, and endangered
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Assessing Sustainability of Groundwater Resources Under Future Climate Change Conditions

SPONSOR:
National Oceanic and Atmospheric Administration (NOAA) through the East-West Center (EWC)

PROJECT PERIOD:
9/1/2012 – 8/31/2013

ABSTRACT:

Ground water is the primary source of municipal water on most developed islands in the Pacific, and yet the reliability of water supplies on all
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Promoting Water Sustainability Literacy

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2012 – 5/2/2012

ABSTRACT:

The purpose of this project was to articulate and disseminate both the challenges to, and importance of, sustainability of freshwater supplies at a Water Forum that
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Satisfying Growing Water Demand Through Integrated Groundwater and Watershed Management

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2012 – 2/28/2013

ABSTRACT:

This research extended the traditional groundwater economics management model to include climate change and watershed conservation planning, and in doing so, improved assessments of the current
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Island Director’s Workshop/Conference

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2011 – 2/28/2014

ABSTRACT:

Tropical islands are expected to see population growth into the coming decades. This rise in population in a changing climatic regime will stress the available water
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Reshaping the Regulatory Framework for Hawaii Aquaculture – Water Quality Standards, Coastal Fishponds, and Shellfish Grounds

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2011 – 2/28/2013

ABSTRACT:

The goal of our seed grant project was to establish a broad-based, collaborative effort to promulgate new water quality regulations that would provide for greater community
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Development of Online Training in Fisheries and Aquaculture Program (OTFAP) for Hawaii and the Pacific Basin

SPONSOR:
NOAA

PROJECT PERIOD:
9/01/09 – 8/31/10

ABSTRACT:

The Online Training in Fisheries and Aquaculture Program OTFAP was designed to provide a flexible framework within which students tailor a degree program to their particular research interests and career goals. Our objective was to
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Sustainable Management of Agroecological Resources for Tribal Societies (SMARTS)

SPONSOR:
SANREM

PROJECT PERIOD:
11/01/09 – 10/31/14

ABSTRACT:

Traditional agriculture in tribal and ethnic agricultural societies in India and Nepal is increasingly relegated to less productive land, often on steepslopes, resulting in lower productivity, degradation of soil and water resources, impairment of health
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Tsunami Observer Program

SPONSOR:
Department of Defense, State of Hawaii (Civil Defense Division)

PROJECT PERIOD:
03/01/2010-ongoing

ABSTRACT:

Integrated Management of Multiple Aquifers in the Face of Climate Change Research

SPONSOR:
WRRIP 2008

PROJECT PERIOD:
03/01/08 – 02/28/09

ABSTRACT:

We proposed an intertemporal and spatial optimization model to derive an efficient pricing scheme for the integrated water system of Southern Oahu. Welfare gains from this scheme were analyzed and compared to those associated
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Efficient Water Management and Block Pricing for Integrated Aquifers: Lessons from Southern Oahu

SPONSOR:
WRRIP 2007

PROJECT PERIOD:
03/01/07 – 02/28/08

ABSTRACT:

We used an intertemporal and spatial optimization process to derive an efficient pricing scheme for the integrated water system of Southern Oahu, accounting for above-ground and subsurface transfers. Welfare gains from this scheme were
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Coastal Groundwater Management in the Presence of Positive Stock Externalities

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
9/1/2005 – 8/31/2008

ABSTRACT:
The nearshore marine environment of Hawai‘i is a major recreational and ecological resource that supports indigenous fish and marine vegetation. Freshwater discharge from groundwater aquifers mixes
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Integrated Management of Multiple Aquifers in the Face of Climate Change Research

SPONSOR:
WRRIP 2008

PROJECT PERIOD:
3/1/2005 – 2/28/2006

ABSTRACT:
We provided a general model of groundwater optimization over space and time, allowing for growing demand and a backstop resource. The model was used to compare resource allocation and welfare under efficient groundwater management
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A Win-Win Approach to Water Pricing and Watershed Conservation

SPONSOR:
U.S. Geological Survey

PROJECT PERIOD:
3/1/2003 – 2/28/2005

ABSTRACT:
An integrated model of water pricing and watershed conservation was developed. The benefits of adopting the efficient integrated policy were compared to the status quo policy of under-pricing water and under-maintaining the watershed
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Assessment and Protection Plan for the Nawiliwili Watershed

SPONSOR:
State Health

PROJECT PERIOD:
10/01/01 – 08/31/04

ABSTRACT:

Help us identify sources of pollution in Nawiliwili Bay: Fill out our survey – CLICK HERE

A team of researchers from the University of Hawaii’s Water Resrources Research Center (WRRC) worked on an EPA/DOH-sponsored
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Tropical Indicators Scientific Workshop

SPONSOR:
US EPA

PROJECT PERIOD:
08/16/00 – 08/15/02

ABSTRACT:
The goal of this study was to invite selected water quality experts to hold a two-day workshop in Hawaii for the purpose of completing several objectives:

To scientifically evaluate the findings and available data
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Demonstration Study of High-Rate Flotation/Contactor Treatment of Raw Wastewater

SPONSOR:
R.M. Towill Corporation

PROJECT PERIOD:
03/01/2016-02/28/2017

ABSTRACT:
The Honouliuli Wastewater Treatment Plant (HWWTP) is the second largest treatment plant in Hawaii. At HWWTP, an average of 26 million gallons per day (MGD) of sewage is treated via primary clarifiers and then 13 MGD is further treated
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Identifying Groundwater Flow and Contamination to Streams: Kahaluu Watershed, Oahu

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2015 – 2/28/2017

ABSTRACT:
The surface waters in the Kahaluu Lagoon on the windward side of Oahu fronted by Kaneohe Bay have been shown to have very high levels of
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Wastewater Treatment for Point Source Processing and Reuse

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/2015-02/29/2017

ABSTRACT:
Water-limited “island” communities face mounting demands on water supply such as increased consumption, lower rainfall, decreased groundwater recharge, and redirection of rainfall over natural watersheds – all of which stress pre-existing ground
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Understanding the Hydrology of a Rainforest Watershed in Hawaii

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2015 – 2/28/2017

ABSTRACT:
Recent studies have shown an increase in rainfall intensity in Hawaii. However, total rainfall has been on the decline in the last two decades and stream
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Understanding the Hydrology of a Rainforest Watershed in Hawaii

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2015 – 2/28/2017

ABSTRACT:

Recent studies have shown an increase in rainfall intensity in Hawaii. However, total rainfall has been on the decline in the last two decades and stream
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Assessing Feasibility of Storm-Water Harvesting by Groundwater Injection in Nuuanu Reservoir No. 4, Oahu, Hawaii

SPONSOR:
Honolulu Board of Water Supply

PROJECT PERIOD:
07/20/2015-07/08/2017

ABSTRACT:
Surface water harvesting is a conservation method used to augment groundwater supply. The method is a form of Aquifer Storage and Recovery (ASR), which involves capturing excess water during wet periods and injecting
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Rainwater Harvesting in American Samoa: Current Practices and Health Risks

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2015 – 2/28/2016

ABSTRACT:

Island ecosystems have low buffering capacity, hence are highly vulnerable to change. Shifts in rainfall and temperature driven by climate change can compromise available water
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Numerical Simulation of Cold Intermediate Depth Seawater Circulation Through the Keauhou Aquifer in North Kona, Hawaii

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2015 – 2/28/2016

ABSTRACT:
Recent drilling log and depth profile data acquired from boreholes drilled through the basal lens in the northern Keauhou aquifer suggest that cold, intermediate depth seawater
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A Novel Approach for Estimation of Evapotranspiration

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2015 – 2/28/2016

ABSTRACT:
Understanding of the amount, spatial distribution, and temporal variability of evapotranspiration (ET) in Hawaii is essential for assessment of water resource availability and management of water
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Identifying future hotspots for algal blooms: A multi-dimensional analysis evaluating impacts of potential land-based sources of pollution on the health of American Samoa’s coasts

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2015 – 2/28/2016

ABSTRACT:
Land-based sources of pollution (LBSP) drive coastal algal blooms, growth of opportunistic seaweeds that can persist for years and in many parts of the world. In
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Geochemical Delineation of Aquifer Boundaries and Assessment of Groundwater Quality on Tutuila Island, American Samoa

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
07/20/2015-07/08/2017

ABSTRACT:

Deteriorating water quality and resulting water shortage is an ongoing threat to the sustainability of domestic water supplies on Tutuila, the main island in the territory of
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Managing for Multiple Ecosystem Services with Changing Land Use in West Maui

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/2014-02/28/2015

ABSTRACT:

Coastal water quality is an integral part of the Hawaiian landscape and economy, affecting both coral ecosystem health and visitor satisfaction. Hawaii’s coastal water supports an abundance
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Evaluation of Portable Multi-use Automated Concentration System (PMACS) for the analysis of indicator bacteria and microbial source tracking markers in Hawaii

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/2014-02/29/2016

ABSTRACT:

Problem and Research Objectives

Problem I: Distribution of microorganisms in beach water and sand is patchy. It is well established that distribution of microbes in the environment
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Tracing Interconnectivity Between High-level and Basal Groundwaters in West Hawaii

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2014 – 2/28/2016

ABSTRACT:
Recent rapid development in the North Kona District of West Hawaii has raised concerns regarding the sustainability of the region’s groundwater resources in the face of
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Quantifying Groundwater Discharge from the Faga’alu Aquifer, American Samoa

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/2014-02/28/2015

ABSTRACT:

Faga’alu Valley on Tutuila Island, American Samoa, has been designated as a priority watershed management area by the NOAA Coral Reef Conservation Program. While Faga’alu’s surface water
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Building a polychaete species database for water management purposes in American Samoa

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/2014-02/28/2015

ABSTRACT:
The biodiversity of marine invertebrates from the American Samoa has been poorly characterized. Most of the efforts are concentrated on studying the coral reefs, which encompasses one of
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Temporal and spatial effects of sewage outfalls on the ecosystem health of coastal waters offshore of Honolulu

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/2014-02/29/2016

ABSTRACT:

The Sand Island Wastewater Treatment Plant and the Honouliuli Wastewater Treatment Plant are primary treatment systems that treat effluents to be discharged a few kilometers offshore of
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Estimating Evapotranspiration Over Native Wet Montane Cloud Forests in Hawaii and Evaluating the Impact of Climate Change on it

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/2014-02/29/2015

ABSTRACT:

Sensible and latent heat fluxes are the key variables in energy and water vapor exchange between the land surface and the atmosphere. Latent heat flux is the
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Assessment of Groundwater Availablity in the Volcanic-Rock Aquifers of Oahu, Hawaii

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2014 – 2/28/2016

ABSTRACT:
The volcanic-rock aquifers of Oahu supply freshwater to 70 percent of Hawaii’s population and most of other needs, including commerce, industry, and U.S. military. The resident
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Monthly Rainfall Maps for the Islands of Kauai, Oahu, Molokai, Maui, and Hawaii, 2008-2010

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/2013-02/28/2014

ABSTRACT:

The Hawaiian Islands have one of the most diverse rainfall patterns on Earth. The mountainous terrain, the persistent trade winds, the heating and cooling of the land,
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Assessment of Hydraulic Properties through Tidal Ground-level Analysis for the State of Hawaii

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/2013-02/28/2014

ABSTRACT:
The Hawaii aquifers supply water to 1.36 million residents, diverse industries, and a large segment of the U.S. military in the Pacific. With the increase of residential population
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Assessing Ground Water Sustainability of the Island of Tutuila, American Samoa

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2013 – 2/28/2014

ABSTRACT:
Anthropogenic and natural sources of contaminants on the island of Tutuila, American Samoa, represent a serious threat to groundwater, surface-water, coastal waters, and coral reefs. Major
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Biomonitoring of the Marine Communities Near the City’s Ocean Sewage Outfalls off O’ahu, Hawai’i

SPONSOR:
City and County of Honolulu

PROJECT PERIOD:
2013

ABSTRACT:
A survey of the capitellids from the Hawaiian Islands has yielded 16 species in seven genera, most represent new records and two species are newly described, Notodasus dasybranchoides sp. nov. and Scyphoproctus edmondsoni sp. nov. The species Capitella
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Engineering Palm Peroxidases for Wastewater Treatment and Water Pollution Monitoring

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2013 – 2/28/2014

ABSTRACT:

Introduction:
Horseradish peroxidase (HRP) is a widely used enzyme in water pollution monitoring and wastewater treatment. However, its poor stability has limited its applications, particularly
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Evaluation of the Impact of Drought Conditions upon the Waiahole Ditch System Development Tunnels: Ground Water Sustainability Implications under Adverse Climate Change Conditions

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2013 – 2/28/2014

ABSTRACT:
Reductions in the base-flow discharges of the high-level development tunnels of the Waiahole Ditch System are believed to be associated with regional recharge distribution shortfalls to
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Evaluation of Next-Generation Sequencing Technologies for Environmental Monitoring: Characterization of Microbial Communities from Wastewater Plants and Selected Beaches of Hawaii Using a Metagenomics Approach

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2013 – 2/28/2014

ABSTRACT:

Microbes are the most abundant and diverse group of organisms on Earth and the major drivers of biogeochemical cycles in all environments. Hence having an
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Impacts of Climate Change on Food Resources of Native Gobiid Fishes and Atyid Shrimp in Hawaiian Streams

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2013 – 2/28/2014

ABSTRACT:
Stream flow is critical for native Hawaiian fish and shrimp, delivering food resources and providing linkages between streams (adult/juvenile habitat) and the ocean (larval habitat) necessary
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Quantifying Toxoplasmosis Gondii Presence in Wastewater and Freshwater Systems

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2013 – 2/28/2014

ABSTRACT:
This proposal addresses the priority issue of Waste Disposal, specifically quantifying the presence of a parasitic disease, toxoplasmosis gondii in streams and wastewater effluent in Hawaii. Toxoplasma
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Acquire Sedimentation Data to Promote Reservoir Sustainability and Advance Watershed Science

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2012 – 2/28/2013

ABSTRACT:
Hawaii’s reservoirs face growing scrutiny due to heightened dam safety and flood control concerns, increasing water demands, and uncertain water pollution effects. Although the National Inventory
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Bioaccumulation and Biotransformation of Arsenic by Marine Algae in Hawaii

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2012 – 2/28/2013

ABSTRACT:
Marine algae are known to bioaccumulate and transform Arsenic (AS). AS was used in earlier decades as a pesticide on agricultural fields in Hawaii. Macroalgae collected
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Biological and Sediment Monitoring Program

SPONSOR:
City and County of Honolulu

PROJECT PERIOD:
1/01/12 – 6/30/14

ABSTRACT:
The University of Hawaii Water Resources Research Center (WRRC) will conduct scientific monitoring of benthic fauna surrounding ocean disposal outlets of effluent from City and County of Honolulu (City) wastewater treatment
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Determination of Groundwater Fluxes and Evaluation of Water-Level Data to Characterize Effectiveness of Low- Permeability Valley-Fill Deposits in the Pearl Harbor Aquifer Area

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
9/1/2012 – 10/31/2013

ABSTRACT:
This study was aimed at assessing the effects of stream valleys that are filled with alluvium below the water table that act as hydrologic barriers to
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Evaluation of Rapid QPCR Method for Enterococci with Correlative Assessment for Molecular Markers for Sewage Contamination in Selected Environmental Water Samples from Hawaii

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
6/1/2012 – 2/29/2013

ABSTRACT:
This project evaluated rapid qPCR test for enterococci and microbial source tracking technology in Hawaii. Tests for current and alternative microbial indicators were conducted in parallel to evaluate
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Fate and Transport of Pharmaceutically Active Compounds in Simulated Bank Filtration System

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2012 – 2/28/2013

ABSTRACT:
Riverbank filtration (RBF) represents a natural filtration technique that has been used for providing drinking water for more than a century in Europe and half a
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Molecular, Fluorometric and Confocal Microscopy Analysis of Microbial Community Composition and Structure

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2012 – 3/1/2013

ABSTRACT:

While periodic assessment of the effect of the effluent from the Sand Island sewage outfall on the benthic invertebrate population has been performed (e.g. Bailey-Brock,
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Measuring Soil Water Content and Electrical Conductivity Under High Salinity Conditions Using a Novel TDR Method

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2010 – 2/28/2011

ABSTRACT:

Salt accumulation from irrigation is a significant and growing problem on many agricultural lands. The efficient operation of an irrigation system relies on, among other factors, the correct reading
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Optimal Groundwater Extraction and Water Recycling

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2009 – 2/28/2011

ABSTRACT:

Water scarcity has long been an important issue in many regions around the world and the threat of climate change has recently brought it further to the forefront of
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Sand Island Wastewater Treatment Plant Pilot UV Unit Testing

SPONSOR:
Trojan Technologies, Inc.

PROJECT PERIOD:
02/01/07 – 01/31/09 (Phase IV)

ABSTRACT:

The primary objectives of the UV disinfection pilot tests were to assess the feasibility of the UV disinfection and establish the appropriate design parameters for a full-scale UV disinfection facility to achieve the required
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Flood and Stormwater Reuse Study

SPONSOR:
U.S. Army Garrison Hawaii

PROJECT PERIOD:
7/1/2008 – 8/31/2009

ABSTRACT:

The study will include a documentation and review of existing structures to include seawalls, dams, rivers and streams at Army facilities in Hawaii (principally Schofield Barracks, Fort Shafter, Pilillau Army Recreation Center and Aliamanu Military
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Quality Assurance Plan for Water Quality Monitoring During the Reconstruction and Aquaculture Operation of Traditional Coastal Fishponds on the Island of Molokai

SPONSOR:
U.H. College of Tropical Agriculture and Human Resources (CTAHR)

PROJECT PERIOD:
09/01/00 – 03/31/01

ABSTRACT:
CTAHR personnel have prepared a Quality Assurance Plan (QAP) for the U.S. Environmental Protection Agency (EPA) regarding the project “Water Quality Monitoring During the Reconstruction and Aquaculture Operation of Traditional Coastal
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Improving Water Resource Assessment in Hawaii by Using LiDAR Measurements of Canopy Structure to Estimate Rainfall Interception

SPONSOR:
WRRIP 2008

PROJECT PERIOD:
03/01/08 – 02/28/09

ABSTRACT:
Water resources in Hawaii continue to experience increasing demand, putting pressure on existing sources and increasing the need for better estimates of resource capacity (Oki 2002). For ground-water sources, in particular, reliable estimates of sustainable yield limits are
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Experimental Study of Humidification-Dehumidification (HDH) Seawater Desalination Driven by Solar Energy

SPONSOR:
USGS

PROJECT PERIOD:
03/01/08 – 02/28/09

ABSTRACT:
A relatively new desalination process called humidification-dehumidification (HDH) was proposed as a feasible solution to the freshwater shortage problem in Hawaii. HDH operates under near ambient pressure and low temperature and can be driven by renewable solar energy as
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Assessment of Veterinary Antibiotics, Hormones, and Pathogens in Animal Wastes and Their Fate and Transport in Tropical Soils

SPONSOR:
USDA-Cooperative State Research, Education, and Extension Service

PROJECT PERIOD:
08/23/06 – 09/14/08

ABSTRACT:
In animal husbandry, antibiotics and hormones need to be used for efficient and economical production. Administration of these chemicals is more common for animals raised in confined animal feeding operations. Residual antibiotics and
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Influence of Soluble Organic Matter on Cryptosporidium Parvum Oocyst Mobility in Variable Charge Soils

SPONSOR:
USDA

PROJECT PERIOD:
07/15/06 – 07/14/09

ABSTRACT:
Cryptosporidia are pathogenic protozoa that are present in the digestive tracts of a wide range of vertebrates. Runoff water can carry Cryptosporidium oocysts (a tough dormant form) from manure to source waters (such as rivers and lakes). If this
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Sand Island Wastewater Treatment Plant Pilot UV Unit Testing

SPONSOR:
Trojan Technologies, Inc.

PROJECT PERIOD:
02/01/07 – 01/31/09 (Phase IV)

ABSTRACT:
The primary objectives of the UV disinfection pilot tests are to assess the feasibility of the UV disinfection and establish the appropriate design parameters for a full-scale UV disinfection facility to achieve the required enterococci
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A Five-Year Biological and Sediment Monitoring Program on Specific Marine Communities Near the City’s Ocean Sewer Outfalls.

SPONSOR:
City of Honolulu, Department of Environmental Services

PROJECT PERIOD:
01/01/07 – 09/30/07

ABSTRACT:
This project is a continuation of WRRC’s long term biological monitoring program at Oahu’s wastewater outfalls. This project has been ongoing since the 1980’s. Its purpose is to try to detect any changes
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Addressing Sewage Contamination of Nawiliwili Streams and Kalapaki Beach

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2011 – 2/28/2013

ABSTRACT:

The first objective of this project was to train the Center’s new microbiologist and familiarize him with Hawaiian conditions following the 2009 retirement of Dr. R. Fujioka after completing
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Benthic Infaunal Communities of Sediments in Apra Harbor, Guam

SPONSOR:
CSA International, Inc.

PROJECT PERIOD:
01/01/11 – 08/31/11

ABSTRACT:
The genus Hydroides Gunnerus, 1768 is the most species rich serpulid genus with 89 valid species (ten Hove & Kupriyanova, 2009). The Hydroides species from the Western Atlantic and Eastern Pacific (including Hawaii) have been taxonomically revised by
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Development of an Advanced Surface Tensiometer for Measuring Water Quality

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2011 – 2/28/2013

ABSTRACT:
Characterizing the physical, chemical and biological properties of potable and recreational waters plays a vital role in assessing and controlling water quality. The objective of this proposal was to develop
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Investigation into Effect of Soil Moisture Depletion on Vegetable Crop Uptake of Microcontaminants Under Recycled Water Irrigation

SPONSOR:
U.S. Department of Agriculture

PROJECT PERIOD:
01/01/11 – 12/31/13

ABSTRACT:
The long-term goal of this study was to determine the effects of soil moisture stress on the uptake of microcontaminants of potential human health concern found in wastewater irrigation by food crops generally eaten fresh. A
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Long-Term Aspects of High-Elevation Rainfall and Climate Change, O’ahu

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2011 – 2/28/2013

ABSTRACT:
The climate and precipitation regime of the North Pacific and Hawai’i varies substantially across timeframes from annual to decadal and longer, and includes ENSO- and PDO-scale dynamics. Water resource planning
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Modeling to Support Monitoring Waiver for Selected Wells in Hawaii

SPONSOR:
Hawaii Department of Health, USEPA

PROJECT PERIOD:
03/14/11 – 09/30/12

ABSTRACT:
Quarterly monitoring of source water from drinking water wells in Hawaii has been going on for decades. However, many of these wells show no evidence of contamination. For a contaminant to appear in a well,
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A Decision Support Tool for Managing the Pipe Network of the Honolulu Board of Water Supply (Year 2)

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2010 – 2/28/2011

ABSTRACT:
Similar to numerous other cities, Honolulu’s municipal water systems has many aging and unreliable components. The Board of Water Supply contends with a number of water main breaks and leaks,
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Asia Pacific Information Exchange (APIX) Water Purification Systems for Humanitarian Assistance and Disaster Response

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/2010 – 09/30/2012

ABSTRACT:
The Asia Pacific Information Exchange (APIX) program is intended to benefit both the U.S. and partner nations. APIX serves as a platform for information exchange and collaboration. APIX supports U.S.
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Cleaning Up Oahu’s Costal Waters, the Role of Tube-Building Polychaetes in Sediment Dynamics

SPONSOR:
WRRIP 2010

PROJECT PERIOD:
3/1/10 – 2/28/11

ABSTRACT:

Marine sediments in coastal waters and their biota are affected by human disturbance. Drainage from land, groundwater incursion and seasonal effects such as high surf are all part of the natural dynamics of coastal sediments. Recent efforts
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Assessment of Hydraulic Properties through Tidal Ground-level Analysis for the State of Hawaii

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/2013-02/28/2014

Measuring Soil Water Content and Electrical Conductivity Under High Salinity Conditions Using a Novel TDR Method

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2010 – 2/28/2011

ABSTRACT:
Salt accumulation from irrigation is a significant and growing problem on many agricultural lands. The efficient operation of an irrigation system relies on, among other factors, the correct reading of
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The Determination of the Relationship between Biodiversity and the Trophic State of Wahiawa Reservoir, Phase II

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2010 – 2/28/2011

ABSTRACT:
Continuing work begun in the FY2008 budget cycle, Professor Clark Liu and Assistant Professor Tao Yan (Civil & Environmental Engineering Department) examined the relationship between biodiversity and trophic status, using
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Assessing the Influence of Land-Based Discharges (Streams, Storm Drain, Groundwater) on the Concentrations and Ratio of Four Human Pathogenic Marine Vibrio spp. in Four Categories of Coastal Water Environments of Hawaii

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2009 – 2/28/2010

ABSTRACT:
Vibrios are indigenous marine bacteria capable of causing disease in both marine animals and humans. The four main human pathogens, V. vulnificus, V. cholerae, V. parahaemolyticus and V. alginolyticus, can
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A Decision Support Tool for Managing the Pipe Network of the Honolulu Board of Water Supply

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2009 – 2/28/2010

ABSTRACT:
The development of asset management plans for public facilities was strongly recommended by the EPA and GAO. At the Honolulu Board of Water Supply (BWS), there was an apparent need
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Numerical Simulation of the Effects of Borehole Flow on Measured Vertical Salinity Profiles from Deep Monitor Wells, Pearl Harbor Aquifer, Oahu, Hawaii

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
8/01/2009 – 7/31/2010

ABSTRACT:
A recent numerical-modeling study of coastal wells in Israel indicated an upward displacement of the borehole salinity in wells located in the coastal-discharge area of the aquifer while it is
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Optimal Groundwater Extraction and Water Recycling

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2009 – 2/28/2011

ABSTRACT:
Water scarcity has long been an important issue in many regions around the world and the threat of climate change has recently brought it further to the forefront of policy
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Application of Radar Imagery as Input to a Rainfall-Runoff Model for the Kawela Watershed, Molokai

SPONSOR:
USGS – WRIP

PROJECT PERIOD:
9/01/2008 – 12/31/2009

ABSTRACT:
Watershed-scale studies in Hawaii can integrate several aspects of basin hydrology, such as stream flow, ground-water recharge, pollutant transport, streambed erosion, and sediment discharge. In addition, the effects of rainfall or land cover changes on any of
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Determination of the Relationship Between Biodiversity and Trophic Status of Wahiawa Reservoir

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/08 – 02/28/09

ABSTRACT:
Nutrient enrichment in rivers and lakes has been a changing phenomenon in the past three decades in the United States. Contribution from point sources, such as wastewater discharge, has been
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Experimental Study of Humidification-Dehumidification (HDH) Seawater Desalination Driven by Solar Energy

SPONSOR:
USGS

PROJECT PERIOD:
03/01/08 – 02/28/09

ABSTRACT:
relatively new desalination process called humidification-dehumidification (HDH) was proposed as a feasible solution to the freshwater shortage problem in Hawaii. HDH operates under near ambient pressure and low temperature and can be driven by renewable solar energy as well
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Improving Water Resource Assessment in Hawaii by Using LiDAR Measurements of Canopy Structure to Estimate Rainfall Interception

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/08 – 02/28/09

Modeling and Drainage Design for the Kaloi Gulch Watershed in Southern Oahu – Phase II

SPONSOR:
R.M. Towill Corporation

PROJECT PERIOD:
05/27/08 – present

ABSTRACT:
Haseko (Ewa), Inc. proposed an 1,100-acre development at the lowermost reaches of the Kaloi Gulch watershed on Oahu, Hawai. According to the City’s storm drainage standard, the 100-year storm peak flow at the lowermost reaches of the
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Determination of the Relationship Between Biodiversity and Trophic Status of Wahiawa Reservoir

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/08 – 02/28/09

Survey and Modeling Analysis of MS4 Highway Storm Runoff on Oahu, Hawaii

SPONSOR:
Hawaii Department of Transportation

PROJECT PERIOD:
09/01/08 – 08/31/10

ABSTRACT:
Under Section 402 of the U.S. Clean Water Act, highway storm runoff is considered to be part of urban point source pollution and is regulated by the National Pollutant Discharge Elimination System (NPDES). As a NPDES
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Assessing Effects of Intraborehole Flow in Deep Monitoring Wells on Estimates of Aquifer Salinity Profiles

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program
USGS

PROJECT PERIOD:
9/01/07 – 12/31/08

ABSTRACT:
There is a heavy reliance on salinity-versus-depth profiles from deep monitor wells for the regulation ground-water withdrawals in some locations in Hawaii. Because of possible intraborehole flow effects, however,
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Estimating Hydraulic Properties for Volcanic Island Aquifers Using Wave Setup

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/07 – 02/28/08

ABSTRACT:
The objective of this study was to investigate the influence of swells and wave setup on low-frequency water-table variations in a coastal aquifer and to utilize wave setup in hydraulic
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Measurement of Phytoremediation and Biodegradation of RDX, HMX DNT and Related Energetic Compounds in the Tropical Environment

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
Environet

ABSTRACT:
This research was a collaboration involving personnel and other resources from Environment Inc., the US Army, and the Hawaii Agricultural Research Center (HARC) that was utilized in experiments that were conducted at
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Sand Island Wastewater Treatment Plant Pilot UV Unit Testing

SPONSOR:
Trojan Technologies, Inc.

PROJECT PERIOD:
02/01/07 – 01/31/09 (Phase IV)

ABSTRACT:
The primary objectives of the UV disinfection pilot tests were to assess the feasibility of the UV disinfection and establish the appropriate design parameters for a full-scale UV disinfection facility to achieve the required enterococci
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Assessment of Veterinary Antibiotics, Hormones, and Pathogens in Animal Wastes and Their Fate and Transport in Tropical Soils

SPONSOR:
USDA-Cooperative State Research, Education, and Extension Service

PROJECT PERIOD:
08/23/06 – 09/14/08

Bioaccessible Arsenic in Soils of Former Sugar Cane Plantation, Island of Hawaii

SPONSOR:
Hawaii State Department of Health Office of Hazard Evaluation and Emergency Response

PROJECT PERIOD:
10/1/2006 – 10/31/2008

ABSTRACT:
Arsenical herbicides were used extensively for emergent weed control in Hawaiian sugar cane cultivation from 1913 to about 1950. As a result, surface soil arsenic concentrations average 280
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Evaluation of Hydrogen Production Mechanisms and Microflora in Landfill Microcosms

SPONSOR:
North Carolina State University

PROJECT PERIOD:
08/01/06 – 01/01/08

ABSTRACT:

This research was a collaboration involving personnel and other resources from North Carolina State University that were utilized in experiments that were conducted at the University of Hawaii. The scope of work that was conducted
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Fate and Transport of Contaminants in a Stream-Aquifer System

SPONSOR:
USGS State Water Resources Research Institute Program

PROJECT PERIOD:
03/01/06 – 02/28/07

ABSTRACT:
Streams and rivers transport sediments, natural organic matter, and, frequently, land-applied chemicals.

Many drinking-water wells located on streambanks and riverbanks induce a portion of the stream or river water to flow through the
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Groundwater Modeling Services for Risk Assessment Red Hill Fuel Storage Facilities, NAVFAC Pacific, Oahu, Hawaii

SPONSOR:
TEC Incorporated

PROJECT PERIOD:
01/01/06 – 02/28/07

ABSTRACT:
The US Navy’s bulk fuel storage facility at Red Hill is located in the ridge between south Halawa Valley and Moanalua Valley on the island of Oahu. The facility was constructed in the early 1940’s and consists of
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Hydrologic Analysis of Hawaii Watersheds for Flood Control and Water Quality Management

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2006 – 8/31/2008

ABSTRACT:
The establishment of the rainfall-runoff relationship of a watershed is an important and difficult problem in applied hydrology. The rainfall-runoff relationships of Hawai‘i watersheds are even more difficult to establish
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Identification and Control of Membrane Bioreactor Biofouling Organisms Using Genetic Fingerprinting – Year 2

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program
USGS

PROJECT PERIOD:
03/01/06 – 02/29/08

ABSTRACT:
Membrane bioreactors (MBRs) are a relatively new wastewater treatment technology which combines several typical unit operations (primary sedimentation, activated sludge aeration and sedimentation, and tertiary media filtration) into a
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Influence of Soluble Organic Matter on Cryptosporidium Parvum Oocyst Mobility in Variable Charge Soils

SPONSOR:
USDA

PROJECT PERIOD:
07/15/06 – 07/14/09

ABSTRACT:

Cryptosporidia are pathogenic protozoa that are present in the digestive tracts of a wide range of vertebrates. Runoff water can carry Cryptosporidium oocysts (a tough dormant form) from manure to source waters (such as rivers and lakes). If
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Integrated Management of Multiple Aquifers with Subsurface Flows and Inter-District Water Transport

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2006 – 2/28/2007

ABSTRACT:
The problem of groundwater management has been studied widely in the literature. However, all of the previous studies limited their attention to the single aquifer case. In many places, water
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Performance of an On-Site Wastewater Treatment System

SPONSOR:
International Wastewater Technologies

PROJECT PERIOD:
11/01/06 – 06/30/07

RAM2 Modeling and the Determination of Sustainable Yields of Hawaii Basal Aquifers

SPONSOR:
Hawaii Commission on Water Resources Management (CWRM)

PROJECT PERIOD:
2006 – 2008

ABSTRACT:
Basal aquifers, in which freshwater floats on top of saltwater, are the major freshwater supply for the Hawaiian Islands, as well as many other coastal regions around the world. Under unexploited or natural
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Remediation of Arsenic in Hawaii Soils – Laboratory and Field Pilot Studies of Geochemical Fixation

SPONSOR:
Hawaii Department of Health

PROJECT PERIOD:
10/01/06 – 09/30/07

ABSTRACT:
Arsenic (As) has been known to cause a variety of adverse health effects, including skin and several internal cancers, and cardiovascular and neurological effects (National Research Council, 1999). Thus, exposure to As is a serious concern.
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Benthic Infauna Community Structure in Reef Sediments Adjacent to Sewage Outfalls at the Agana and North District Treatment Plants, Guam, Mariana Islands

SPONSOR:
Guam Water Works Dept.

PROJECT PERIOD:
04/01/05 – 02/28/07

ABSTRACT:
The benthic invertebrate community structure was characterized at outfall sites at Agana and Northern District Treatment Plant (NDTP) on Guam in July 2001. The intent was to characterize the infaunal species present and their abundance at
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Development of a New Technique for the Use of Dissolved Helium as an Environmental Groundwater Tracer

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2005 – 2/28/2006

ABSTRACT:
Tracer tests are an important method for determining the flow characteristics and patterns of subsurface water (such as groundwater aquifers) and surface water bodies (such as streams and the ocean).
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Diffusive Tortuosity of Reactive Porous Media: Application to Colloidal Fouling and Biofouling During Membrane Filtration

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2005 – 2/28/2006

ABSTRACT:
Fouling in microfiltration (MF) and ultrafiltration (UF) processes has been extensively studied for the crossflow filtration technique in which the flow direction is parallel to the membrane surface but perpendicular
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Evaluating the Effectiveness and Feasibility of Commercial Ozone Technologies Used for Sanitation of Work Area and Laundry Services

SPONSOR:
U.S. Army

PROJECT PERIOD:
09/01/05 – 12/31/06

ABSTRACT:
The primary goal of this study was to obtain independent, laboratory-based, performance data to evaluate the effectiveness, feasibility and safety in the application of one commercial ozone technology (Ozone Industries, Inc.) for cleaning and disinfection of workplace surface
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National Coastal Assessment and Monitoring Program (EMAP) Continuing Assessment of Hawaii’s Estuaries and Coastal Waters: Phase II

SPONSOR:
Hawaii Department of Health

PROJECT PERIOD:
12/23/05 – 04/22/07

ABSTRACT:
We assisted the state in preparing and developing phase 2 of the Environmental Monitoring and Assessment Program (EMAP), which included continuation of an earlier assessment of the physical, biological, and chemical condition of Hawaii’s estuaries and
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Stormwater Education on US Army Installations on Oahu

SPONSOR:
USGS

PROJECT PERIOD:
09/15/05 – 09/14/07

ABSTRACT:
Water quality measurements within storm drain discharge locations on military bases on Oahu indicated that the Army would not meet standards for (a) Total Suspended Solids (TSS); (b) Nitrogen (N); and (c) Phosphorous (P). Assessments suggested that exceedances are
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The Dynamic Effects of Native Versus Non-Native Vegetation on the Ecohydrology of a Hawaiian Rainforest

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2005 – 2/28/2006

ABSTRACT:
As populations increase and the demand for water rises, so does the need for informed sustainable resource management. In Hawai‘i, one particular concern is that land use and vegetation change
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Analytical Groundwater Flow and Transport Modeling for the Estimation of Sustainable Yield of Pearl Harbor Aquifer

SPONSOR:
Hawaii Commission on Water Resources Management (CWRM)

PROJECT PERIOD:
05/01/04 – 12/31/05

Application of Innovative Methods and Strategies to Differentiate Sewage from Non-Point Source Pollution in Hawaii

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/04 – 2/28/06

ABSTRACT:
The basic water quality problem in the state of Hawaii is related to the fact that fecal indicator bacteria (fecal coliform, E. coli, and enterococci) are naturally present in all
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Estimating Hydraulic Properties for Volcanic Aquifers Using Aquifer Tests and Tidal Responses

SPONSOR:
USGS Pacific Islands Water Science Center

PROJECT PERIOD:
7/2004 – 12/2005

ABSTRACT:
Most published solutions for aquifer responses to ocean tides focus on the one-sided attenuation of the signal as it propagates inland. However, island aquifers experience periodic forcing from the entire coast, which can lead
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Hawaii Source Water Assessment and Protection Program Update and Maintenance

SPONSOR:
Hawaii Department of Health, Safe Drinking Water Branch

PROJECT PERIOD:
04/23/04 – 06/28/05

ABSTRACT:
A WRRC team headed by Dr. Aly El-Kadi has recently completed the task of conducting an assessment of the State’s 450-odd drinking water sources for the State Department of Health (DOH). The
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Wind-Powered Reverse Osmosis Water Desalination for Pacific Islands and Remote Coastal Communities

SPONSOR:
US Bureau of Reclamation (USBR)

PROJECT PERIOD:
10/01/04 – 06/30/06

ABSTRACT:
Water and energy are closely linked natural resources – the transportation, treatment, and distribution of water depends on low-cost energy; while power generation requires large volumes of water. Seawater desalination is a mature technology for
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An Evaluation of Factors Affecting the Transport of Pharmaceutical Compounds and Pathogens in Selected Hawaii Soils for Land Application of Wastewater

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/03 – 2/28/06

ABSTRACT:
Mobility of viruses, bacteria, and other wastewater contaminants (including hormones) in subsurface media and their arrival in groundwater can have public health as well as aesthetic concerns. The sources of
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Honolulu Membrane Bioreactor Pilot Study

SPONSOR:
WateReuse Foundation, Alexandria, Virginia

PROJECT PERIOD:
07/02/03 – 12/31/04

ABSTRACT:
Membrane bioreactors (MBRs) are a relatively new wastewater treatment technology which promise exceptional treatment efficiency and a reduced footprint compared to conventional treatment process trains. MBRs may be particularly well suited to situations in which water
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Prevention of Colloidal Fouling in Crossflow Membrane Filtration: Searching for Optimal Operation Conditions Year 2

SPONSOR:
U.S. Geological Survey

PROJECT PERIOD:
03/01/03 – 02/28/05

ABSTRACT:

Crossflow membrane filtration processes involving reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF), and microfiltration (MF) have steadily gained importance in environmental engineering separations over the past decade. Numerous improvements in the technology have spurred widespread adaptation
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An Accurate Evaluation of Water Balance to Predict Surface Runoff and Percolation

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/02 – 2/28/05

ABSTRACT:
Hawaii, like many other states, has a number of unlined landfills that are potential groundwater contamination sources. Infiltration control is a major means of reducing leachate generation at unlined landfill
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Development and Implementation of a Water Monitoring Plan to Prepare for Criminal and Terroristic Contamination of a Drinking Water System

SPONSOR:
Honolulu Board of Water Supply

PROJECT PERIOD:
2/15/02 – 12/31/04

ABSTRACT:
The recent acts of terrorism in the U.S. have clearly shown that agencies in the U.S. and throughout the world are not prepared to defend against terroristic acts on their citizenry. As a result, agencies
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Removal of Nitrogenous Aquaculture Wastes by a Wind-Powered Reverse Osmosis System, Year 2

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/2002 – 2/28/2005

ABSTRACT:
Advanced treatment must be provided to wastewater used for freshwater aquaculture in order to meet effluent water quality standards. Because such treatment can be expensive and because freshwater is also
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Sequential Anaerobic-Aerobic Biodegradation of PCBs and PAHs in Phytoremediation Cuttings Using Slurry Reactors and Composters

SPONSOR:
Environet, Inc.

PROJECT PERIOD:
05/01/02 – 10/31/03

ABSTRACT:
The use of phytoextraction for clean-up of soils contaminated with heavy metals is an attractive alternative to excavation and treatment/removal operations that is quite well documented (Raskin, 2000). The use of plants to extract toxic organic compounds such
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Confirming the Natural Presence of Fecal Indicator Bacteria in Environmental Soil and Water on the Islands of Kauai and Hawaii

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
3/1/01 – 2/28/03

ABSTRACT:

Problem and Research Objectives

Our laboratory at the Water Resources Research Center, University of Hawaii, has been conducting water quality studies in the state of Hawaii for the past
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Removal of Nitrogenous Aquaculture Wastes by a Wind Powered Reverse Osmosis System

SPONSOR:
U.S. Geological Survey

PROJECT PERIOD:
Year 1: 03/01/01 – 02/28/02
Year 2: 03/02/02 – 02/28/03

ABSTRACT:
Tilapia fish are a major source of protein around the world. In the United States, tilapia farming is the fastest growing segment of aquaculture, and over the last year, domestic
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Evaluation of Infiltration to Groundwater Waialua, Hawaii

SPONSOR:
U. S. Army Garrison-Hawaii

PROJECT PERIOD:
09/01/00 – 03/31/01

ABSTRACT:
The Schofield Army Barracks Wastewater Treatment Plant (SBWWTP) treats wastewater from the following facilities in central Oahu, Hawaii: U.S. Army’s Schofield Barracks Military Reservation, Wheeler Army Air Field, Camp Stover Housing Area, Helemano Military Reservation, U.S.
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Optimize Aeration, Secondary Clarifier and Disinfection Processes

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
9/1/00 – 12/31/03

ABSTRACT:
The U.S. Army’s Schofield Barracks Wastewater Treatment Plant has a history of not consistently meeting the microbial requirements for discharge into the Waialua Sugar Company irrigation system. The disinfection challenge
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Quality Assurance Plan for Water Quality Monitoring During the Reconstruction and Aquaculture Operation of Traditional Coastal Fishponds on the Island of Molokai

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
09/01/00 – 03/31/01

Sand Island Wastewater Treatment Plant Sludge Characterization Study

SPONSOR:
R.M. Towill Corporation

PROJECT PERIOD:
09/01/00 – 03/31/01

ABSTRACT:
The Sand Island Wastewater Treatment Plant (SIWWTP) is the largest treatment plant in Hawaii. At SIWWTP, an average of over 70 million gallons per day of sewage is treated to the enhanced primary level via flotation clarifiers
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Tropical Indicators Scientific Workshop

SPONSOR:
US EPA

PROJECT PERIOD:
08/16/00 – 08/15/02

ABSTRACT:
The goal of this study was to invite selected water quality experts to hold a two-day workshop in Hawaii for the purpose of completing several objectives:

To scientifically evaluate the findings and available data dealing with the presence
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Rapid Response: Application of a qPCR-based Test for Enterococci as a Rapid Beach Management Tool in HawaiiRapid Response: Application of a qPCR-based Test for Enterococci as a Rapid Beach Management Tool in Hawaii

SPONSOR:
Hawaii Department of Health, Clean Water Branch

PROJECT PERIOD:
2017

ABSTRACT:
Over eight million tourists visit Hawaii every year. Hawaii is ranked third in the US for number of beach visitors and Hawaii’s beaches see heavy use year round. Therefore microbial beach water quality is extremely
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Stream Pesticide and Nutrient Loads from Baseflow, Surface Runoff and Sediment Contributions on Tutuila Island, American Samoa

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

ABSTRACT:
The goal of the project was to determine the contribution of baseflow, surface runoff, and sediments to pollutant fluxes in Faga’alu watershed in Tutuila, American Samoa. The work utilized a watershed model (SWAT) and a
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Demonstration Study of High-Rate Flotation/Contactor Treatment of Raw Wastewater

SPONSOR:
R.M. Towill Corporation

PROJECT PERIOD:
03/01/2016-02/28/2017