US Environmental Protection Agency, Region III Contracts Branch (3PM10), 1650 Arch Street, Phildelphia, PA 19103-2029

H -- DELIVERY OF ANALYTICAL SERVICES SOL RFQ003SPO DUE 091698 POC Sidney Ozer, Contracting Officer, V 215/814-5305 F 215/814-5211 AMENDMENT 0001 TO RFQ003SPO DELIVERY OF ANALYTICAL SERVICES The request for quotations is amended as follows. Submit quotations (incl reps and certs and acknowledgement of amend 0001) in FAX or in writing to: Environmental Protection Agency, Region III Contracts Branch (3PM10), Attn: Sidney Ozer, Contracting Officer, Mark for RFQ003SPO DELIVERY OF ANALYTICAL SERVICES (AS AMENDED)DUE 3PM EDT ON WEDNESDAY SEPTEMBER 16, 1998, 1650 Arch Street, Philadelphia PA 19103-2029, FAX 215/814-5211 THIS NOTICE IS THE RFQ AMENDMENT!!!! Quoters must acknowledge receipt of this amendment prior to he hour and date specified in the RFQ by acknowledging this amendment in the quoation submitted or by separate letter which includes a reference to the RFQ number and amendment number. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACED DESIGNATED FOR THE RECEIPT OF QUOTATIONS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR QUOTATION. If by virtue of this amendment you desire to change a quotationalready submitted, such change a must be received prior to the hour and date specified. DESCRIPTION OF AMENDMENT: The following detection quantation limits are deleted: Inorganic analytes Mercury, Nickel, Silver Posted 09/11/98 (W-SN248559). (0254)

Loren Data Corp. http://www.ld.com (SYN# 0083 19980915\H-0002.SOL)