U.S. Environmental Protection Agency, 26 W. Martin Luther King Dr., Cincinnati, OH 45268

B -- PURCHASE OF ANALYTICAL SERVICES FOR VIABILITY AND INFECTIVITY ASSAYS FOR ANA SOL CWX 117/118 DUE 030398 POC Barbara A. Curtiss 513-468-2036 E-MAIL: U.S.EPA CINCINNATI CONTRACTS MANAGEMENT DIVISION, CURTISS.BARBARA@epamail.epa.gov. THE USEPA INTENDS TO NEGOTIATE ON A SOLE SOURCE BASIS, UNDER THE AUTHORITY of of FAR 6.301, WITH THE UNIVERSITY OF ARIZONA, DEPT OF VETERINARY SCIENCE. THE CONTRACTOR SHALL PROVIDE ANALYTICAL SERVICES FOR VIABILITY AND INFECTIVITY ASSAYS FOR ANALYSIS OF 48 SAMPLES (4 EXPOSURE TIME IN DUPLICATE, FOR 3 SPECIESAT 2 CHLORINE LEVELS). MICROSPORIDIA ARE PARASITIC PROTOZOANS WHICH INFECT MAN. THESE ORGANISMS, IN THEIR RESISTANT SPORE FORM, MAY BE SPREAD BY THEWATER ROUTE AND DUE TO THEIR SMALL SIZE ARE DIFFICULT TO REMOVE BY CONVEN- TIONAL TREATMENT PROCESSES. THE WATER SUPPLY AND WATER RESOURCES DIVISION, MICROBIAL CONTAMINANTS CONTROL BRANCH (MCCB) PLANS TO CONDUCT CHLORINE INACTIVATION STUDIES TO DETERMINE THE RESISTANCE OF THESE ORGANISMS TO CHLORINATION PRACTICES NORMALLY EMPLOYED IN DRINKING WATER TREATMENT. WE WILL NEED A SUPPLY OF SPORES OF THREE SPECIES OF THESE PARASITES AND THE ANALYTICAL SERVICES REQUIRED TO ASSESS THEIR VIABILITY AFTER EXPOSURE TO CHLORINE. THE MCCB PLANS TO PROVIDE SAMPLES FOR ANALYSIS OVER A TWELVE MONTH PERIOD, WITH ALL SAMPLE ANALYSES BEING COMPLETED BY JUNE 1999. THIS IS NOT A REQUEST FOR PROPOSAL. SOURCES WISHING TO BE CONSIDERED MUST SUBMIT DOCUMENTATION TO THE OFFICE IDENTIFIED ABOVE. DOCUMENTATION MUST BE SUBMITTED WITHIN 15 DAYS OF THE DATE OF PUBLICATION OF THIS NOTICE. SUBMIT YOUR REQUEST IN WRITING TO BARBARA A. CURTISS AT THE ABOVE ADDRESS OR BY FAX 513-487-2107. TELEPHONE REQUEST WILL NOT BE HONORED. (0048)

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