Administrative Contracts Service Center (3803R), Environmental Protection Agency, Ronald Reagan Building -- 7th Floor, 1300 Pennsylvania Avenue, N.W., Washington, DC 20460

B -- COLLABORATIVE VALIDATION OF SIX 1600-SERIES TRACE METAL METHODS SOL 97-9 DUE 120597 POC Sherry F. Lutz, Contracting Officer, 202/564-4513 E-MAIL: Click here to contact the Contracting Officer via e-mail., Lutz.Sherry@epamail.epa.gov. The purpose of this modification is to extend the previous due date of October 31, 1997 through December 5, 1997 at 3:30 PM, EST. Offerors responding to the October 31, 1997 deadline may elect to resubmit or revise their previous bids. ALL OTHER TERMS AND CONDITIONS REMAIN UNCHANGED. The Environmental Protection Agency has a requirement for six to nine qualified laboratories to validate six 1600-series trace metal analytical methods (1632, 1636, 1637, 1638, 1639, and/or 1640) for measuring at or near Water Quality Criteria (WQC) levels. Interested parties must prequalify to participate in this study. To prequalify, each laboratory must complete and submit a bid form indicating the methods it would like to perform in the validation study, costs for the method blank analysis and MDL study to be done in the first phase of the study, and costs for the analysis of samples during the second phase. Labs may perform any or all of the methods. Once an award has been made, the laboratory shall proceed with a demonstration of acceptable performance for all the methods accepted by conducting analysis of method blanks and an MDL study. Laboratories shall not be permitted to analyze the ambient water, effluent, or reagant water matrices alone; these must be analyzed as a set. This study will be performed in two phases. First, a MDL study will be performed to prequalify for the additional work. Laboratories determined to prequalify will be awarded the additional work. If the MDL study is accepted, the Government will pay what it determines to be reasonable for a MDL study. Laboratories who fail to prequalify shall receive no additional consideration. The Government intends to make an award to 6-9 laboratories per method, based on the total cost of the bid. Simplied acquisition procedures shall be utilized in selecting qualified laboratories. Any questions regarding this requirement should be in writing and faxed to 202/565-2554, ATTN: Sherry F. Lutz. (0318)

Loren Data Corp. http://www.ld.com (SYN# 0014 19971118\B-0004.SOL)