Environmental Protection Agency (EPA) 



Central to EPA's mission are its Grand Challenges in air and water pollution management 

 and in ecological assessment. The complex nature of these Grand Challenge problems 

 demands use of the most comprehensive and integrated computational assessment tools 

 available. By the mid-1990s, the achievement of EPA's HPCC Program goals will provide 

 more reliable and useful tools to develop improved national pollution control and prevention 

 strategies involving billions of dollars in control costs. 



EPA has three main goals for its HPCC Program activi- 

 ties: 



3 Advance the capability of environmental assess- 

 ment tools by adapting them to a distributed het- 

 erogeneous computing environment that includes 

 scalable massively parallel architectures. 



-" Provide more effective solutions to complex envi- 

 ronmental problems by developing the capability to 

 perform multipollutant and multimedia pollutant 

 assessments. 



-J Provide a computational and decision support 

 environment that is easy to use and responsive to 

 environmental problem solving needs to key 

 Federal, state, and industrial policy-making organi- 

 zations. 



EPA participates in the NREN, ASIA, IITA, and BRHR 

 components of the HPCC Program as follows. 



NREN: Increasing Access to a Heterogeneous 

 Computing Environment 



EPA will expand Internet connectivity to a critical mass 

 of environmental problem-solving groups at the Federal, 

 state, and industrial levels and to environmental Grand 

 Challenge research teams, enabling distributed comput- 

 ing approaches for linking complex ecological models or 

 multimedia environmental models. EPA is establishitig a 

 research network to support geographically distributed 

 collaborative development of prototype environmeriral 

 assessment frameworks using a distributed, heteroge- 

 neous computing environment that includes massively 

 parallel components and distributed data access. EPA 

 will also provide environmental applications software for 



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