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…
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…
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…
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…
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…
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 supply…
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…
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…
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…
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…
