Mesa Verde National Park, PO Box 8, Mesa Verde, CO 81330

F -- DEVELOP GROUND WATER MODEL OF SAND CREEK AQUIFER-STREAT SYSTEM AT GREAT SAND DUNES NM SOL RFQ49099011 DUE 072299 POC Fred Bunch 719-378-2312 ext 202 E-MAIL: dixie_sparks@nps.gov, dixie_sparks@nps.gov. The National Park Service intends to award a sole source contract to HRS Water Consultants for developing a ground water model of Sand Creek aquifer-stream system at Great Sand Dunes National Monument in south central Colorado (San Luis Valley), to include know documented aspects of flow system; calibrate model to observed volumes; determine how changes in initial depth to water in the unconfined aquifer beneath the steam affect the length of live flow in the stream. Contractor must be completely familiar with San Luis Valley water history. This proposed action is for services for which the Government intends to solicit and negotiate with only one source under the authority of FAR 6.302. Interested parties may identify their interest and capability to respond to the requirement. This notice of intent is not a request for competitive proposals; however, all expressions of interest received within 30 calendar days of the date of publication of this sysnopsis will be considered by the government. A determination by the government not to compete this proposed contract based upon responses to this notice is solely within the discretion of the government. Information received in response to this notice will be used solely for the purpose of determing whether to conduct a competitive procurement. The work consists of developing a model; sensitivity analysis; and final report/data analysis. The job site is in Great Sand Dunes National Monument, Mosca, CO. The estimated price range for the project is between $25,000 and $100,000. Posted 06/22/99 (W-SN345908). (0173)

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