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515- I~c-5515~EF,ERFL C :Eii i CAL • l ~ c r01 %cs JLFI : e =5 <br />~~ - <br />FAX <br />h@~ l CORRESPONDENCE <br />TO: John Ehmann DATE: June 14,1999. <br />COMPANY: General Chemical . <br />FAX #: 1-973-599-5501 # OF PACES INCLUDING COVER: 3 <br />FROM: Glenn Widish ph (519)-736-2111, EXT 287 Fax (519}736-8915 <br />As you requested articles that will be presented or used to support evidence: <br />1. Pollution of the St. Clair River (Sarnia Area): A situation Report prepazed by Environment <br />Canada and the Ontario Ministry of Environment under the Auspices of the Canada-OnTario <br />Agreement Respecting Great Lakes Water Quality; 1985 <br />2. Environmental implications of Deep-WeII Disposal of Brines to the Detroit River Group of <br />Formations in Southwestern Ontario-Summary Report; Prepared by Underground Resource <br />Management Inc. of Austin Texas in association with Gartner Lee Associates Limited of <br />Mazkham Ontario: ]984. <br />3. Subsidence Monitoring Plan, Submitted by American Soda, L.L.P. for Yankee Gulch Sodium <br />Minerals Project (Revision 1) April 1999 by Agapito Associates, Inc. (Whole Article) <br />4. Correspondence from Dr. Leo Rothenburg, University of Waterloo to Mr. R. Demers General <br />Chemical Canada May 23, 1997. <br />5. Rock Mechanics Design of a New General Chemical Ltd. Brine Field at Amherstburg, <br />Ontazio by Leo Rothenburg, Ph.D., P. Eng. April 1997 <br />6. Subsidence Problems caused by solution Mining of the Rock Salt Deposits by M. L. Jeremic, <br />Associate Professor of Mining Department of mineral Engineering, University of Alberta, <br />Edmonton, Alberta, Canada <br />7. Oil, Gas and Salt Resources of Ontazio Operating Standazds Version 1.0, Queen's Printer for <br />Ontario (Sections on Solution Mining) <br />3. The role of hydrogeology insolution-subsidence development and iu environmental impacts: <br />a case-study for Sazlica (Migde, Turkey) by M. Celik and M. Afsin found in Environmental <br />Geology 36 (3-4) December 1998 pages 335 to 342 <br />9. Brinefield Subsidence at Windsor, Ontario, Ruth D. Tertaghi, Research Fellow in <br />Engineering Geology, Harvard University, Cambridge Massachusetts <br />10. The Problem of Subsidence in Salt-Producing Areas by G. J. Lewis, BP Chemicals (U.K.) <br />Limited Murgatrod's Works, Elworth, Sandbach Eheshire, England <br />11. Mining Subsidence in the East Netherlands, Th. Hans Wassmann, Ako-Zout Chemie <br />Nederland Postbus25 7550 GC Hengelo, The Netherlands from the Fifth [ntemauonal <br />Symposium on Salt-Northern Ohio Geological Society <br />12. Combined Microbial, Seismic Surveys predict oil and gas occurrences in Bolivia by Lopez, <br />Hitzman and Tucker in Oil and Gas Journal October 24, 1994 pages 68 to 70 <br />~-,.,- <br />Far FFinann <br />