RESEARCH: WATER QUALITY, ECOLOGY & PUBLIC HEALTH SCIENCES

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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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

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
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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

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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