EXHIBIT INDEX EXHIBIT LOCATION OF EXHIBIT IN NUMBER DESCRIPTION OF DOCUMENT SEQUENTIAL NUMBERING SYSTEM 2.0 (a) Stock Purchase and Sale Agreement Incorporated by reference to by and between Ogden Projects, Exhibit No. 2(a) forming part Inc. and Blount, Inc. dated of the Registrant's Current December 17, 1990, without Report on Form 8-K and Form 8 exhibits Amendment to Application or Report (File No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, on June 7, 1991 and August 6, 1991, respectively. (b) Agreement and Amendment, dated as Incorporated by reference to of May 23, 1991, to the Stock Exhibit No. 2(b) forming part Purchase and Sale Agreement of the Registrant's Current between Ogden Projects, Inc. and Report on Form 8-K and Form 8 Blount, Inc., dated December 17, Amendment to Application or 1990. Report (File No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended on June 7, 1991 and August 6, 1991, respectively. 4.1 (a) Trust Indenture, dated as of Incorporated by reference to December 1, 1986, and amended and Exhibit No. 4.1(a) forming part restated as of July 1, 1987, of the Registrant's Registration between Shawmut Bank, N.A., as Statement on Form S-1 (File No. trustee, and Massachusetts 33-29312) filed with the Industrial Finance Agency. Securities and Exchange Commission under the Securities Act of 1933, as amended. (i) Amendment No. 2, dated as of Incorporated by reference to April 1, 1992, to Amended and Exhibit No. 4.1(a)(i) forming Restated Trust Indenture, as part of the Registrant's Report amended, between Shawmut on Form 10-Q (File No. 1-10282) Bank, N.A., as trustee, and filed with the Securities and Massachusetts Industrial Exchange Commission under the Finance Agency. Securities Exchange Act of 1934, as amended, for the quarterly period ended June 30, 1992. (ii) Supplemental and Amending Incorporated by reference to Trust Indenture, dated as of Exhibit No. 4.1(a)(ii) forming May 1, 1992, between Shawmut part of the Registrant's Report Bank, N.A., as trustee, and on Form 10-Q (File No. 1-10282) Massachusetts Industrial filed with the Securities and Finance Agency. Exchange Commission under the Securities Exchange Act of 1934, as amended, for the quarterly period ended June 30, 1992. EXHIBIT LOCATION OF EXHIBIT IN NUMBER DESCRIPTION OF DOCUMENT SEQUENTIAL NUMBERING SYSTEM (b) OHA Loan Agreement, dated as of Incorporated by reference to December 1, 1986, and as amended Exhibit No. 4.1(b) forming part as of August 1, 1988, between of the Registrant's Registration Ogden Haverhill Associates and Statement on Form S-1 (File No. Massachusetts Industrial Finance 33-29312) filed with the Agency. Securities and Exchange Commission under the Securities Act of 1933, as amended. (i) Amendment No. 2, dated as of Incorporated by reference to May 1, 1992, to the OHA Loan Exhibit No. 4.1(b)(i) forming Agreement, as amended, part of the Registrant's Report between Ogden Haverhill on Form 10-Q (File No. 1-10282) Associates and Massachusetts filed with the Securities and Industrial Finance Agency. Exchange Commission under the Securities Exchange Act of 1934, as amended, for the quarterly period ended June 30, 1992. (c) OHA (Ogden Haverhill Project) Incorporated by reference to Massachusetts Industrial Finance Exhibit No. 4.1(c) forming part Agency Series A Note, dated of the Registrant's Registration December 23, 1986, and as amended Statement on Form S-1 (File No. as of August 1, 1988 (Amendment 33-29312) filed with the incorporated by reference to Securities and Exchange Exhibit No. 4.1(e)), by Ogden Commission under the Securities Haverhill Associates to Shawmut Act of 1933, as amended. Bank, N.A., as trustee. (d) OHA (Ogden Haverhill Project) Incorporated by reference to Massachusetts Industrial Finance Exhibit No. 4.1(d) forming part Agency Series B Note, dated of the Registrant's Registration December 23, 1986, and as amended Statement on Form S-1 (File No. as of August 1, 1988 (Amendment 33-29312) filed with the incorporated by reference to Securities and Exchange Exhibit No. 4.1(e)), by Ogden Commission under the Securities Haverhill Associates to Shawmut Act of 1933, as amended. Bank, N.A., as trustee. (e) OHA (Ogden Haverhill Project) Incorporated by reference to Massachusetts Industrial Finance Exhibit No. 4.1(e) forming part Agency Series C Note, dated of the Registrant's Registration December 23, 1986, and as amended Statement on Form S-1 (File No. as of August 1, 1988, by Ogden 33-29312) filed with the Haverhill Associates to Shawmut Securities and Exchange Bank, N.A., as trustee. Commission under the Securities Act of 1933, as amended. EXHIBIT LOCATION OF EXHIBIT IN NUMBER DESCRIPTION OF DOCUMENT SEQUENTIAL NUMBERING SYSTEM (i) Amendment No. 2, dated as of Incorporated by reference to May 28, 1992, to OHA (Ogden Exhibit No. 4.1(e)(i) forming Haverhill Project) part of the Registrant's Massachusetts Industrial Report on Form 10-Q (File No. Finance Agency Series C 1-10282) filed with the Note, as amended, by Ogden Securities and Exchange Haverhill Associates to Commission under the Securities Shawmut Bank, N.A., as Exchange Act of 1934, as trustee. amended, for the quarterly period ended June 30, 1992. (f) SBR Loan Agreement, dated as of Incorporated by reference to December 1, 1986, and as amended Exhibit No. 4.1(f) forming part through August 1, 1988, between of the Registrant's Registration SBR Associates and Massachusetts Statement on Form S-1 (File No. Industrial Finance Agency. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. (i) Amendment No. 2, dated as of Incorporated by reference to May 1, 1992, to SBR Loan Exhibit No. 4.1(f)(i) forming Agreement, as amended, part of the Registrant's Report between SBR Associates and on Form 10-Q (File No. 1-10282) Massachusetts Industrial filed with the Securities and Finance Agency. Exchange Commission under the Securities Exchange Act of 1934, as amended, for the quarterly period ended June 30, 1992. (g) SBR (Ogden Haverhill Project) Incorporated by reference to Massachusetts Industrial Finance Exhibit No. 4.1(g) forming part Agency Series D Note, dated of the Registrant's Registration December 23, 1986, and as amended Statement on Form S-1 (File No. as of August 1, 1988, by SBR 33-29312) filed with the Associates to Shawmut Bank, N.A., Securities and Exchange as trustee. Commission under the Securities Act of 1933, as amended. (i) Amendment No. 2, dated as of Incorporated by reference to May 28, 1992, to SBR (Ogden Exhibit No. 4.1(g)(i) forming Haverhill Project) part of the Registrant's Report Massachusetts Industrial on Form 10-Q (File No. 1-10282) Finance Agency Series D filed with the Securities and Note, as amended, by SBR Exchange Commission under the Associates to Shawmut Bank, Securities Exchange Act of 1934, N.A., as trustee. as amended, for the quarterly period ended June 30, 1992. EXHIBIT LOCATION OF EXHIBIT IN NUMBER DESCRIPTION OF DOCUMENT SEQUENTIAL NUMBERING SYSTEM (h) Letter of Credit and Reimbursement Incorporated by reference to Agreement, dated as of December Exhibit No. 4.1(h) forming part 1, 1986, between Ogden Martin of the Registrant's Registration Systems of Haverhill, Inc. and Statement on Form S-1 (File No. Union Bank of Switzerland, 33-29312) filed with the New York Branch. Securities and Exchange Commission under the Securities Act of 1933, as amended. (i) Reimbursement Agreement Incorporated by reference to Amendment, dated August 1, Exhibit No. 4.1(h)(i) forming 1988, between Ogden Martin part of Amendment No. 1 to the Systems of Haverhill, Inc. Registrant's Registration and Union Bank of Statement on Form S-1 (File No. Switzerland, New York 33-29312) filed with the Branch. Securities and Exchange Commission under the Securities Act of 1933, as amended. (ii) Second Reimbursement Incorporated by reference to Agreement Amendment, dated Exhibit No. 4.1(h)(ii) forming August 1, 1989, between part of Amendment No. 3 to the Ogden Martin Systems of Registrant's Registration Haverhill, Inc. and Union statement on Form S-1 (File No. Bank of Switzerland, New 33-29312) filed with the York Branch. Securities and Exchange Commission under the Securities Act of 1933, as amended. (iii) Third Reimbursement Incorporated by reference to Agreement Amendment, dated Exhibit No. 4.1(h)(iii) forming October 13, 1989, between part of Amendment No. 1 to the Ogden Martin Systems of Registrant's Registration Haverhill, Inc. and Union Statement on Form S-1 (File No. Bank of Switzerland, New 33-31575) filed with the York Branch. Securities and Exchange Commission under the Securities Act of 1933, as amended. (iv) Fourth Reimbursement Incorporated by reference to Agreement Amendment, dated Exhibit No. 4.1(h)(iv) forming as of September 23, 1991, part of the Registrant's Report between Ogden Martin Systems on Form 10-Q (File No. 1-10282) of Haverhill, Inc. and Union filed with the Securities and Bank of Switzerland, New Exchange Commission under the York Branch. Securities Exchange Act of 1934, as amended, for the quarterly period ended June 30, 1992. EXHIBIT LOCATION OF EXHIBIT IN NUMBER DESCRIPTION OF DOCUMENT SEQUENTIAL NUMBERING SYSTEM (v) Fifth Reimbursement Incorporated by reference to Agreement Amendment, dated Exhibit No. 4.1(h)(v) forming as of May 1, 1992, between part of the Registrant's Report Ogden Martin Systems of on Form 10-Q (File No. 1-10282) Haverhill, Inc. and Union filed with the Securities and Bank of Switzerland, New Exchange Commission under the York Branch. Securities Exchange Act of 1934, as amended, for the quarterly period ended June 30, 1992. (i) Reimbursement Agreement, dated as Incorporated by reference to of May 31, 1989, between Ogden Exhibit No. 4.1(i) forming Haverhill Properties, Inc. and part of the Registrant's Report Swiss Bank Corporation, New York on Form 10-Q (File No. 1-10282) Branch. filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the quarterly period ended June 30, 1990. (i) First Amendment to the Incorporated by reference to Reimbursement Agreement Exhibit No. 4.1(i)(i) forming dated as of May 28, 1992 part of the Registrant's Report between Ogden Haverhill on Form 10-Q (File No. 1-10282) Properties, Inc. and Swiss filed with the Securities and Bank Corporation, New York Exchange Commission under the Branch. Securities Exchange Act of 1934, as amended, for the quarterly period ended June 30, 1992. 4.2 (a) Second Amended and Restated Trust Incorporated by reference to Indenture, dated as of February Exhibit No. 4.8(a) forming part 1, 1989, between the Fairfax of the Registrant's Registration County Economic Development Statement on Form S-1 (File No. Authority and Crestar Bank, as 33-29312) filed with the trustee. Securities and Exchange Commission under the Securities Act of 1933, as amended. (b) Conditional Sale and Security Incorporated by reference to Agreement, dated as of February Exhibit No. 4.8(b) forming part 1, 1988, between the Fairfax of the Registrant's Registration County Solid Waste Authority and Statement on Form S-1 (File No. Ogden Martin Systems of Fairfax, 33-29312) filed with the Inc. Securities and Exchange Commission under the Securities Act of 1933, as amended. EXHIBIT LOCATION OF EXHIBIT IN NUMBER DESCRIPTION OF DOCUMENT SEQUENTIAL NUMBERING SYSTEM 4.3 Specimen Stock Certificate for Incorporated by reference to Registrant's Common Stock. Exhibit No. 4.12 forming part of Amendment No. 1 to the Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 4.4 Demand Note, dated May 31, 1989, Incorporated by reference to by Registrant to Ogden Exhibit No. 4.13 forming part Corporation. of Amendment No. 1 to the Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 4.5 Demand Note, dated December 19, Incorporated by reference to 1984, by Registrant to Bouldin Exhibit No. 4.14 forming part Development Corporation. of Amendment No. 1 to the Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 10.1 Tax Sharing Agreement, dated as Incorporated by reference to of January 1, 1989, among Ogden Exhibit No. 10.21 forming part Corporation, Ogden Projects, Inc. of the Registrant's Registration and Subsidiaries, Ogden Allied Statement on Form S-1 (File No. Services, Inc. and Subsidiaries, 33-29312) filed with the and Ogden Financial Services, Securities and Exchange Inc. and Subsidiaries. Commission under the Securities Act of 1933, as amended. 10.2 (a) Amended and Restated Cooperation Incorporated by reference to Agreement, dated April 30, 1983 Exhibit No. 10.22(a) forming and amended and restated as of part of Amendment No. 2 to the April 1, 1985, and as further Registrant's Registration amended through May 25, 1989 Statement on Form S-1 (File No. between Ogden Martin Systems, 33-29312) filed with the Inc. and Martin GmbH fur Securities and Exchange Umwelt-und Energietechnik Commission under the (confidential status has been Securities Act of 1933, granted for certain provisions as amended. thereof pursuant to Commission Order No. 810132). EXHIBIT LOCATION OF EXHIBIT IN NUMBER DESCRIPTION OF DOCUMENT SEQUENTIAL NUMBERING SYSTEM (i) Amendment to Section 5.3.1 Incorporated by reference to of the Amended and Restated Exhibit No. 19.1 forming part Cooperation Agreement, of the Registrant's Report on effective as of January 1, Form 10-Q (File No. 1-10282) 1989, between Ogden Martin filed with the Securities and System, Inc. and Martin GmbH Exchange Commission under the fur Umwelt-und Energietechnik Securities Exchange Act of 1934, (confidential status has as amended, for the quarterly been granted for certain period ended June 30, 1990. provisions thereof pursuant to Rule 24b-2). (ii) Amendment No. 6 to Amended Incorporated by reference to and Restated Cooperation Exhibit No. 19.1 forming part Agreement, effective as of of the Registrant's Report on January 1, 1991, between Form 10-Q (File No. 1-10282) Ogden Martin Systems, Inc. filed with the Securities and and Martin GmbH fur Exchange Commission under the Umwelt-und Energietechnik. Securities Exchange Act of 1934, as amended, for the quarterly period ended June 30, 1991. (b) Rights of First refusal, dated Incorporated by reference to June 2, 1989, among Walter Josef Exhibit No. 10.22(b) forming Martin, Anneliese Martin, Johannes part of Amendment No. 2 to the Josef Edmund Martin and Ogden Registrant's Registration Martin Systems, Inc. Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 10.3 Ogden Projects, Inc. Directors' Incorporated by reference to Stock Option Plan. Exhibit No. 10.24 forming part of the Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 10.4 Letter Agreement, dated October Incorporated by reference to 5, 1990, between David L. Sokol Exhibit No. 19.5 forming part and Ogden Corporation. of the Registrant's Report on Form 10-Q (File No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the quarterly period ended September 30, 1990. EXHIBIT LOCATION OF EXHIBIT IN NUMBER DESCRIPTION OF DOCUMENT SEQUENTIAL NUMBERING SYSTEM 10.5 Ogden Projects, Inc. Employees' Incorporated by reference to Stock Option Plan. Exhibit No. 10.26 forming part of the Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 10.6 Ogden Corporation Pension Plan, Incorporated by reference to as amended and restated, Exhibit No. 10.27 forming part effective as of January 1, 1988. of the Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 10.7 Ogden Corporation Supplementary Incorporated by reference to Deferred Benefit Plan, adopted Exhibit No. 10.28 forming part December 13, 1976, and amended of the Registrant's Registration as of January 5, 1988. Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 10.8 Ogden Corporation Stock Option Incorporated by reference to Plan, effective as of March 11, Exhibit No. 10.29 forming 1986. part of the Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 10.9 Ogden Corporation 1990 Stock Incorporated by reference to Option Plan, effective as of Exhibit No. 10.29 forming part October 11, 1990. of the Registrant's Report on Form 10-K (File No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1990. 10.10 Ogden Projects, Inc. Pension Incorporated by reference to Plan effective as of January 1, Exhibit No. 10.30 forming part 1989. of the Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. EXHIBIT LOCATION OF EXHIBIT IN NUMBER DESCRIPTION OF DOCUMENT SEQUENTIAL NUMBERING SYSTEM (i) Amendment to Ogden Projects, Incorporated by reference to Inc. Pension Plan effective Exhibit No. 10.10(i) forming as of January 1, 1994. part of Registrant's Report on Form 10-K (File No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1993. 10.11 Form of Supplementary Deferred Incorporated by reference to Benefit Plan of Ogden Projects, Exhibit No. 10.31 forming part Inc. effective as of January 1, of Amendment No. 1 to the 1989. Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 10.12 Ogden Projects, Inc. Profit Incorporated by reference to Sharing Plan effective as of Exhibit No. 10.32 forming part January 1, 1989. of the Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. (i) Ogden Projects Profit Incorporated by reference to Sharing Plan amendment by Exhibit No. 19.2 forming part Unanimous Written Consent of the Registrant's Report of the Administrative on Form 10-Q (file No. 1-10282) Committee, dated March 7, filed with the Securities and 1990. Exchange Commission under the Securities Exchange Act of 1934, as amended, for the quarterly period ended March 31, 1990. (ii) Amendment to Ogden Projects, Incorporated by reference to Inc. Profit Sharing Plan Exhibit No. 10.12(ii) forming effective as of January 1, part of Registrant's Report on 1994. Form 10-K (File No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1993. EXHIBIT LOCATION OF EXHIBIT IN NUMBER DESCRIPTION OF DOCUMENT SEQUENTIAL NUMBERING SYSTEM 10.13 Ogden Allied Services Saving Incorporated by reference to and Security Plan, as amended Exhibit No. 10.33 forming part and restated, effective as of of the Registrant's Registration August 1, 1986. Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 10.14 Ogden Services Corporation Incorporated by reference to Profit Sharing Plan, as amended Exhibit No. 10.34 forming part and restated, effective as of of the Registrant's Report on January 1, 1989, as further Form 10-K (File No. 1-10282) amended July 18, 1990. filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1990. 10.15 (a) Ogden Services Corporation Incorporated by reference to Executive Pension Plan, effective Exhibit No. 10.35(a) forming as of January 1, 1989. part of the Registrant's Report on Form 10-K (File No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1990. (b) Ogden Services Corporation Incorporated by reference to Executive Pension Plan Trust Exhibit No. 10.35(b) forming Agreement, dated as of October part of the Registrant's Report 1, 1990, between Ogden Services on Form 10-K (file No. 1-10282) Corporation and The Bank of New filed with the Securities and York. Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1990. 10.16 (a) Ogden Services Corporation Incorporated by reference to Select Savings Plan, effective Exhibit No. 10.36(a) forming as of October 1, 1990. part of the Registrant's Report on Form 10-K (file No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1990. EXHIBIT LOCATION OF EXHIBIT IN NUMBER DESCRIPTION OF DOCUMENT SEQUENTIAL NUMBERING SYSTEM (b) Ogden Services Corporation Incorporated by reference to Select Savings Plan Trust Exhibit No. 10.36(b) forming Agreement, dated as of October part of the Registrant's Report 1, 1990, between Ogden Services on Form 10-K (File No. 1-10282) Corporation and The Bank of New filed with the Securities and York. Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1990. 10.17 Form of Supplemental Defined Incorporated by reference to Benefit Plan of Ogden Allied Exhibit No. 10.34 forming Services effective as of January part of Amendment No. 1 to 1, 1989. the Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 10.18 Ogden Environmental Services Incorporated by reference to Pension Plan effective as of Exhibit No. 10.35 forming January 1, 1989. part of the Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 10.19 Ogden Environmental Services Incorporated by reference to Profit Sharing Plan effective as Exhibit No. 10.36 forming part of January 1, 1989. of the Registrant's Registration Statment on form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. (i) Ogden Environmental Services Incorporated by reference to Profit Sharing Plan Exhibit No. 19.3 forming part amendment by Unanimous of the Registrant's Report on Written Consent of the Form 10-Q (File No. 1-10282) Administrative Committee, filed with the Securities and dated March 7, 1990. Exchange Commission under the Securities Exchange Act of 1934, as amended, for the quarterly period ended March 31, 1990. EXHIBIT LOCATION OF EXHIBIT IN NUMBER DESCRIPTION OF DOCUMENT SEQUENTIAL NUMBERING SYSTEM 10.20 Form of Supplementary Deferred Incorporated by reference to Benefit Plan of Ogden Exhibit No. 10.37 forming part Environmental Services, Inc., of Amendment No. 1 to the effective as of January 1, 1989. Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 10.21 Stock Purchase Agreement, dated Incorporated by reference to as of May 31, 1989, between Exhibit No. 10.38 forming part Company and Ogden Corporation. of the Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 10.22 Stock Purchase Option Agreement, Incorporated by reference to dated June 14, 1989, between Exhibit No. 10.39 forming part Ogden Corporation and Company. of the Registrant's Registration Statement on Form S-1 (File No. 33-29312) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. (i) Amendment to Stock Purchase Incorporated by reference to Option Agreement, dated Exhibit No. 10.39(i) forming November 16, 1989, between part of Amendment No. 1 to the Ogden Corporation and Registrant's Registration Company. Statement on Form S-1 (File No. 33-31575) filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended. 10.23 Employment Agreement, dated as Incorporated by reference to of June 1, 1990, between Company Exhibit No. 10.47 forming part and William C. Mack. of the Registrant's Report on Form 10-K (File No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1990. EXHIBIT LOCATION OF EXHIBIT IN NUMBER DESCRIPTION OF DOCUMENT SEQUENTIAL NUMBERING SYSTEM 10.24 Employment Agreement, dated as Incorporated by reference to of June 1, 1990, between Company Exhibit No. 10.48 forming part and Scott G. Mackin. of the Registrant's Report on Form 10-K (File No. 1-10282) filed with the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1990. (i) Employment Agreement dated Incorporated by reference to January 1, 1994 between Exhibit No. 10.24(i) forming Company and Scott G. Mackin. part of Registrant's Report on Form 10-K (File No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1993. 10.25 Employment Agreement, dated as Incorporated by reference to of June 1, 1990, between Company Exhibit No. 10.49 forming part and Gloria A. Mills. of the Registrant's Report on Form 10-K (File No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1990. 10.26 Employment Agreement, dated as Incorporated by reference to of June 1, 1990, between Company Exhibit No. 10.50 forming part and Bruce W. Stone. of the Registrant's Report on Form 10-K (File No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1990. 10.27 Employment Agreement, dated as Incorporated by reference to of June 1, 1990, between Company Exhibit No. 10.51 forming part and John M. Klett. of the Registrant's Report on Form 10-K (File No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1990. EXHIBIT LOCATION OF EXHIBIT IN NUMBER DESCRIPTION OF DOCUMENT SEQUENTIAL NUMBERING SYSTEM 10.28 Employment Agreement, dated as Incorporated by reference to of May 24, 1990, as amended Exhibit No. 10.52 forming part October 11, 1990, between Ogden of the Registrant's Report on Corporation and R. Richard Ablon. Form 10-K (File No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1990. 10.29 Agreement and Plan of Merger Incorporated by reference to dated September 20, 1990 by and Exhibit No. 10.53 forming part among Ogden Environmental of the Registrant's Report on Services of Houston, Inc., Ogden Form 10-K (File No. 1-10282) Acquisition Company and American filed with the Securities and Envirotech, Inc. Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1990. (i) Amendment dated June 12, Incorporated by reference to 1991 by and among Ogden Exhibit No. 10.29 forming part Environmental Services of of the Registrant's Report on Houston, Inc., Ogden Form 10-K (File No. 1-10282) Acquisition Company and filed with the Securities and American Envirotech, Inc. Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1991. 10.30 Ogden Projects, Inc. Core Incoroporated by reference to Executive Benefit Program. Exhibit No. 10.30 forming part of the Registrant's Report on Form 10-K (File No. 1-10282) filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, for the fiscal year ended December 31, 1992. 11.0 Detail of Computation of Transmitted herewith as Earnings Applicable to Common Exhibit 11. Stock.