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JAMES GEOENVIRONMENTAL SVGS. <br /> PROPOSAL FOR PROVIDING SUBSURFACE EXPLORATION <br /> BORINGS AND NUTRIENT/CHEMISTRY SOIL SAMPLES: <br /> "Dragonfly-Bend" Habitat Enhancement Project in West Eugene <br /> PACIFIC WATER RESOURCES, Project Consultant <br /> 11/19/03 <br /> SCOPE OF WORK <br /> In accordance with the project design specifications and technical guidelines laid out by Ing. <br /> Terry Colvin of the City of Eugene Engineering Department, JAMES <br /> GEOENVIRONMENTAL SERVICES proposes the following work plan and cost outlay to <br /> PACIFIC WATER RESOURCES for carrying out the necessary subsurface exploration at the <br /> two riparian zone restoration sites planned. The goals of this proposal are: <br /> 1) To determine the geotechnical character and volumes of the different soil <br /> materials to be encountered in the two channel widening/riparian habitat <br /> development projects defined for the newly acquired wetland parcel through 4 <br /> strategically located hand auger borings to depths of about 12'. Given the results, <br /> it maybe necessary to auger one or two more to quantify all materials involved. <br /> 2) Sample for geotecnical characteristics, nutrients and selected heavy metals in soil <br /> <br /> r chemistry of the materials planned to be excavated to help best define construction <br /> limitations, design of a final deposit site and revegetation plans of up to 60,000 cu. <br /> yds. of material. <br /> 3) Summarily compaze and contrast stratigraphic, physical and soil chemistry results <br /> with those of previous studies in the area. <br /> The methodology to be employed includes executing 4 hand auger borings with a 4" standazd <br /> bucket, with the goal of penetrating 11-12' deep into areas planned for excavation as <br /> indicated in site map (Fig. 1). Sites A and C aze located on undisturbed terrain to the west of <br /> the flood protection berm that the borders Amazon Creek while Sites B and D are located on <br /> the crest of the berm in the South and North restoration sites, respectively. Site E will be <br /> located within one of the two restoration sites. The excavated soil will be laid out on a clean <br /> plastic tarp in the order it was found and uncontaminated samples of the different units will <br /> be taken for chemical analyses and definition of the stratigraphic record in the two sites <br /> located 145' and 120' respectively from the Amazon Creek berm (Sites A and C). If <br /> impenetrable gravel is encountered before this depth a trench in the lower wall of Amazon <br /> Cr. channel will be excavated to sample and describe said material in the two sites near the <br /> edge of the Amazon Creek. <br /> The sampling scheme for soil nutrient samples and heavy metals/chlorine is presented in <br /> Figure 1 also. To determine actual fertility conditions three samples will be taken at 4" and <br /> 12" depths, at sites A, C and E. Averaged grab samples will also be collected from each <br /> Geological and Geomorphologcal Mapping, Fertility and Geotechnic9l Soils Analyses, Geologic Risk Studies <br /> Soil-structure Instability Analyses, Mineralogy and Other Geological Aspects of Interdisciplinary Studies <br /> 1565 Polk Street. Apt. # 6 . EUGENE-OR. 97402. Phone: (541) 513-2118 / (541)344-0769 FAX (541) 344-0189 <br /> <br />