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j ` <br />configuration of 3(horizontal) : 1(vertical), we recommend [hat [he topsoil layer be no greater than 4 <br />inches in thickness. The depth of replaced topsoil can be greater for Fla[[er slope configurations. <br /> <br />~~ <br />3) All cut and fill slopes and any other stripped azeas should be protected against erosion by revegeta[ion or <br />other methods. We recommend that the exposed slopes be revegetated as soon as is practical so that the <br />vegetation will have adequate time during the growing season to take root and help stabilize the upper <br />topsoil and overburden soils. <br />it should be noted tha[ some minor sloughing of the topsoil and near surface overburden soils could occur if the <br />surface and subsurface drainage conditions are not adequa[ely controlled. <br />LIMI"CATIONS <br />This report has been prepazed in accordance with generally accepted soil and foundation engineering practices in <br />this area. The conclusions and recommendations submitted in this report are based upon the data obtained from <br />the exploratory test holes drilled at the approximate locations shown on the site plan, as well as the supplementary <br />subsurface information provided by the client. <br />Professional judgments based on the subsurface conditions encountered are presented in this report. They aze <br />based partly on evaluation of technical information gathered, partly on our observations made during the field <br />investigation, partly on our understanding of the proposed slope configurations and construction techniques, and <br />panty on our experience with similar slopes and subsurface conditions. We do not guazantee the performance of <br />the project in any respec[; only that our engineering work and judgment rendered meet the standard of care in our <br />profession. <br />If you have any questions <br />us. <br />Sincerely, <br />NORTHWEST CO O <br />Brian D. Len, P.E <br />this report or if we may be of further service, please do not hesitate to contact <br />INC. <br />`25750 e <br />,~ <br />Job No. 98-3504 Northwest Colorado Consultants, Inc. <br />Page 8 <br />