The following links will provide you with more information on Phosphogypsum:

• Agricultural Research Service (ARS)
  The Agricultural Research Service (ARS) is the principal in-house research agency of the U.S. Department of Agriculture (USDA). ARS, one of the Research, Education and Economics (REE) agencies, is charged with extending the Nation's scientific knowledge across a broad range of program areas that affect the American people on a daily basis.
  
  This specific link is to a document on the Agricultural uses of Phosphogypsum, Gypsum and Other Industrial Byproducts.
  
  
• Alberta Agriculture
  Link to Alberta Agriculture Website.
  
  
• Alberta Environment
  Link to the Alberta Environment Website.
  
  
• Ardaman & Associates, Inc.
  This link takes you to the Ardaman & Associates, Inc. website, specifically to the phosphogypsum page.  Ardaman is our expert consultant for the design and operation of the existing and proposed future phosphogypsum stacks.  This page summarizes Ardaman’s experience and expertise in the area.
  
  
• Cargill Ecosystem Management Initiative
  This is the main page of the Cargill Ecosystem Management Initiative.  It was the web site used to provide information on the permitting process for the extension of the phosphogypsum storage system at their Riverview, Florida fertilizer plant. 
  
  
• Cargill Riverview Application
  This is a direct link to the Cargill Riverview application.  This 82 page document includes air impacts, dispersion modeling, radioactivity, wastewater, surface water, hydrogeological investigation, geotechnical investigation, groundwater, operations and maintenance. 
  
  
• Composting Council of Canada
  The Composting Council of Canada is a national non-profit, member-driven organization with a charter to advocate and advance composting and compost usage. It serves as the central resource and network for the composting industry in Canada and, through its members, contributes to the environmental sustainability of the communities in which they operate.
  
  This is a direct link to the technical research paper “Phosphogypsum Addition and Composting of Beef Cattle Feedlot Manure” delivered to the 2000 conference.
  
  
• Ecomarks final report on the Compost and Field Pilot Program
  This is a direct link to Ecomarks final report on the Compost and Field Pilot Program.  The Executive Summary introduction follows:  “The Compost and Field Pilot Project 2001 is the outcome of a co-operative venture undertaken by several partners from both the public and private domain.  The partners provide both financial and in kind support for the project.  The Compost and Field Pilot Project 2001 examined the development of practical on-farm composting initiatives and restoring Alberta ’s topsoil resource.  Specifically, the Compost and Field Pilot Project 2001 consisted of examining the effectiveness of different mixtures of compost and examining the effect of adding organic amendments to soils and their resultant effect on crop yield.  The Compost and Field Pilot Project 2001 also aimed to educate producers and the general public of the benefits and viability of composting, manure management and soil health.”
   
• Poly-Flex
  This website provides information on synthetic liners and gyp stack design similar to the Agrium Redwater extension.  The Abstract follows:
  
  “Florida's rich "Bone Valley" area is the location for U.S. Agri-Chemicals Corporation's "gyp stack" expansion, the first under the new Rule 62-673 for Phosphogypsum Management, adopted March 1993 by the Florida Environmental Regulation Commission (ERC). Under the rule, new phosphogypsum stack systems, existing system expansions, and unlined stack system closures are to be constructed with liners that are protective of ground water quality.
  
  The 143 acre expansion utilized the state-approved "inverted" composite liner design consisting of compacted gypsum on top of HDPE geomembrane, and an extensive sub-liner underdrain dewatering system which kept the expansion's base dry during construction and will do so as needed during gypsum stack operation. It also included special liner construction for connection to a planned Phase II of the gypsum stack expansion. The project demonstrates a practical and conscientious mix of consideration for industry and environmental regulation.”
  
  
• Public Working Group
  The Public Working Group was formed to represent the public's interests in the permitting review process. It was one of the many strategies Cargill used to involve the public in the permit application. In the course of reviewing Cargill's proposed project, individuals serving on the Public Working Group asked a great number of questions covering a broad range of topics. Those questions and the company's responses became part of the permit application. They are summarized here.
  
  Some responses reference where the public can find additional information within the formal permit application, called the Consolidated Development Application (CDA). That application is on file at the Tampa office of the Department of Environmental Protection, and at Cargill Fertilizer's offices.
  
  
• Type 65 Florida Phosphogypsum
  The product specification sheet for “Type 65 Florida Phosphogypsum” is available online at the Agrium website.  
  
   
• University of Saskatchewan
  This link takes you to the University Of Saskatchewan website.  The topic is soil salinity impacts and management. 
  
  
• US Environmental Protection Agency (EPA)
  The US Environmental Protection Agency (EPA) Frequently Asked Questions (FAQ) on Phosphogypsum.