State Water Resources Research Institute Program

Project ID: 2008PR45B
Title: Open pit quarry restoration to bio-viable land
Project Type: Research
Start Date: 3/01/2008
End Date: 2/28/2010
Congressional District: N/A
Focus Categories: Water Quality, Groundwater, Hydrogeochemistry
Keywords: Resource Development, Plant Growth, Water Quality
Principal Investigator: Hwang, Sangchul (University of Puerto Rico at Mayaguez)
Federal Funds: $ 20,000
Non-Federal Matching Funds: $ 39,763
Abstract: Open pit quarries potentially represent physical risks to safety of people and stock due to dangerous vertical pit walls or deep water. And also, they can be a possible source of environmental pollution from water accumulation unless properly drained. Other pits become arenas for off-road vehicle use, illegal dumping, trespass, and unauthorized activities like target shooting. Open pits have been restored or reclaimed to different types of environmental matrices depending on their end uses and the location and nature of the pits.

The objective of this study is to investigate the effectiveness of coal combustion byproduct (CCP) aggregates (AGREMAX, hereafter)-based refill in the open pits in Santa Isabel. The site is planned to be used as an agricultural land after restoration. Therefore, another objective is to assess the potential risks in relation to contamination of soil and groundwater associated with the use of AGREMAX. To meet this end, laboratory feasibility tests and computational modeling are proposed to perform for the period of 2 years.

Progress/Completion Report, 2008, PDF
Progress/Completion Report, 2009, PDF
Progress/Completion Report, 2010, PDF

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