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<br />" , <br />,. <br /> <br /> <br />ROCKY MOUNTAIN CONSULTANTS, INC. <br /> <br /> <br />If? hta O"..:z . <br />r- ~~=tmc <br /> <br />.,; <br /> <br />A TETRA TECH COMPANY <br /> <br />1900 S. Sunset. Suite 1-F <br />Longmont. CO 80501 <br />(303) 772-5282 <br />FAX (303) 665-6959 <br /> <br />June 5, 2002 <br /> <br />Mr. Charles Klarich <br />Town of Frederick <br />P.O. Box 435 <br />Frederick, Colorado 80530 <br /> <br />Re: Milavec Lake Seep Prevention and Collection Alternatives; State Dam ID 055319 <br /> <br />Dear Charlie: <br /> <br />Rocky Mountain Consultants, Inc. (RMC) is pleased to submit this revised proposal to provide engineering <br />services for evaluating seep prevention and/or collection alternatives for Milav.ec Lake. RMC has incJuded <br />a proposed scope of work and associated engineering costs for the site investigation and lining alternatives <br />evaluation for Milavec Lake. <br /> <br />Enclosed, please find two copies of our standard Professional Services Agreement to provide services as <br />described below. <br /> <br />Task 1 - Existinl! Data Collection and Reservoir Water Balance <br /> <br />RMC will collect available geotechnical and hydrologic data including existing boring log information and <br />perform a water balance from existing information to ascertain potential problem areas of the reservoir <br />where the majority of the leakage may be occurring. RMC will construct maps and cross-sections based on <br />available information. Task I will provide the background information and technical basis for completing <br />the Task 2 Field Investigation. <br /> <br />WWw.rmcco.com <br /> <br /> <br />Task 2 - Preliminarv Field Investil!ation <br /> <br />RMC will complete an on-site field investigation based on data gaps or deficiencies identified in Task 1. <br />RMC estimates that the on-site investigation will include installation of approximately four to eight <br />piezometers or well points. RMC will apply for the necessary permits from the State Engineer's Office for <br />installing the piezometers and contract a drilling company to complete the piezometers. RMC estimates <br />that the drilling program for the preliminary field investigation will require 20 hours of drill rig time. <br />Samples will be collected at select intervals for future laboratory testing as necessary. Additional drilling <br />and soil testing may be necessary after a design alternative has been selected. ~ <br /> <br />RMC will also visually observe the dam embankment and adjacent areas for possible loss areas from the <br />reservoir. Water volume and specific conductance measurements will be completed in thestormwater <br />ditch which runs adjacent to the reservoir along WCR 13 to ascertain whether this ditch may be a major <br />seepage loss source for the reservoir. Tasks 1 and 2 will provide the technical basis for providing the most <br />cost effective seepage collection and/or lining alternatives. <br /> <br />CIVIL AND ENVIRONMENTAL ENGINEERING. PLANNING <br />