TO: Layne Inc ("Counterparty") ATTN: Jerry Fanska FAX: 001 913 362 8823 FROM: Bank of America National Trust and Savings Association ("BofA"), 26 Elmfield Road, Bromley, Kent, BR1 1WA, England Attn: Global Derivative Operations U.S.A. TOLL FREE NUMBER U.K. LOCAL NUMBER Tel No: 1 (888) 624-0164 0181-313-2659 Fax No: 1 (888) 624-0166 0181-313-2694 DATE: May 8,1998 RE: USD 25,000,000.00 Swap Transaction commencing May 15, 1998 Our Confirmation Reference No. SW37455 Dear Sir/Madam: The purpose of this letter agreement is to confirm the terms and conditions of the Transaction entered into between us on the Trade Date specified below (the "Swap Transaction"). This letter agreement constitutes a "Confirmation" under the ISDA Agreement defined below. The definitions and provisions contained in the 1991 ISDA Definitions (as published by the International Swaps and Derivatives Association, Inc. ("ISDA")) are incorporated into this Confirmation. In the event of any inconsistency between those definitions and provisions and this Confirmation, this Confirmation will govern. 1. This Confirmation supplements, forms part of, and is subject to, the Interest Rate and Currency Exchange Agreement dated as of June 14, 1993 as amended and supplemented from time to time (the "Agreement"), between you and us. All provisions contained in the Agreement govern this Confirmation except as expressly modified below. THIS FACSIMILE TRANSMISSION WILL BE THE ONLY WRITTEN COMMUNICATION REGARDING THIS SWAP TRANSACTION. Pursuant to ISDA guidelines, this facsimile transmission will be sufficient for all purposes to evidence a binding supplement to the Agreement. However, should you have an internal requirement for confirmations with an original signature, we request that you sign and return this Confirmation by facsimile, whereupon, we will add an original signature to the fully executed Confirmation, and forward it to you by mail. 2. The terms of the particular Swap Transaction to which this Confirmation relates are as follows: Notional Amount: USD 25,000,000.00 Trade Date: May 7,1998 Effective Date: May 15,1998 Termination Date: May 15, 2002 subject to adjustment in accordance with the Modified Following Business Day Convention. Fixed Amounts: Fixed Rate Payer: Counterparty Fixed Rate Payer Payment Dates: Each 15th of February, May, August and November, commencing on August 15, 1998 up to and including the Termination Date. Fixed Amount: Calculation x Fixed x Fixed Rate Day Amount Rate Count Fraction Fixed Rate: 5.96500 percent per annum Fixed Rate Day Count Fraction: Actual/360 Floating Amounts: Floating Rate Payer: BofA Floating Rate Payer Payment Dates: Each 15th of February, May, August and November, commencing August 15, 1998 up to and including the Termination Date. Floating Rate for Initial Calculation Period: To be determined Floating Rate Option: USD-LIBOR-BBA Designated Maturity: 3 months Spread: None Floating Rate Day Count Fraction: Actual/360 Reset Dates: First Day of each Calculation Period Compounding: Inapplicable Business Days: New York & London Business Day Convention: Modified Following Calculation Agent: Bank of America 3. Account Details: Payments to BofA: Fed Funds to Bank of America NT and SA San Francisco ABA NO. 1210-0035-8 BISD Acct No. 33006-83980 Attn: Interest Rate Swap Operations 4. Offices: Office of BofA: San Francisco Office of Counterparty: Mission Woods Variations to the Agreement for this Swap Transaction: None Please confirm your agreement to be bound by the terms stated herein by executing the copy of this Confirmation enclosed for that purpose and returning it to us or by sending to us a telex or letter, within 24 hours of receipt of this Confirmation to Bank of America NT & SA San Francisco Telex No. 249839 Answer Back OPRST UR or U.S.A. Toll Free Fax No: 1 (888) 624- 0166 or U.K. Local Fax No: 0181-313-2694 Attention: Global Derivatives Operations, substantially in the form below: Quote We acknowledge receipt of your rapidfax dated May 8, 1998 with respect to the Swap Transaction entered into on May 7, 1998 between Layne Inc and Bank of America National Trust and Savings Association with a Notional Amount of USD 25,000,000.00 and a Termination Date of May 15, 2002, and confirm our agreement to be bound by the terms specified in such rapidfax. Unquote This Confirmation shall be conclusively deemed accurate and complete by Counterparty if not objected to within two (2) Business Days from the date of receipt. Yours sincerely, For and on behalf of: Bank of America National Trust and Savings Association By: /s/ Steven A. Saratore -------------------------- Name: Steven A. Saratore -------------------------- Title: Senior Authorized Officer -------------------------- Confirmed as of the date first above written: Layne lnc By: /s/ Jerry W. Fanska --------------------- Name: Jerry W. Fanska --------------------- Title: V.P. Finance ---------------------