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1275 Old Highway 8 <br />New Brighton, MN 55112 <br />Attn: ,Victor Brenk <br />1 OFFICERS: <br />Gentlemen CHARLES W. BRITZIUS <br /> president <br /> ROBERT F. WITTMAN <br />e <br />$ J : Proposed Addition xecutive vice president <br /> <br />1275 Old Highway 8 NORMAN E. HENNING <br />vice president <br />New `Brighton, MN CLINTON R. ELIE <br />X120-2889 secretary. <br /> JOHN F. GISLASON <br /> treasurer <br />We have conducted a subsurface exploration for the proposed addition. <br />This work was performed in accordance with your verbal authorization <br />on March 17, 1978. ' <br /> OTHER OFFICES: <br />About 500 of the'soil -samples will;be held at this office for a period BISFARGO,N? <br />of one month and will then be discarded unless we are notified to hold GRAND FORKS, No <br />them for a longer period of time. MINOT,ND <br /> MANKATO, MN <br /> ROCHESTER, MN <br />' The purpose of this letter is to present the results of the subsurface APPLETON, WI <br /> <br />exploration. EAU CLAIRE, WI <br /> LA CROSSE, W1 <br /> WAUSAU, WI <br />On March 2.2 and 23, 19.78, six soil test borings were put down at the RAPID CITY, SD <br /> <br />locations indicated by you in the field. Th.e boring locations are SIOUX FALLS, SD <br />WATERLOO, IA <br />shown on the attached sketch. The surface elevations were referenced <br />' to. the first floor of the existing;-building. This elevation was taken <br />as 100 <br />An earlier soil exploration was conducted on the site by us and the re- <br />sults reported in our report 418840; dated March.2, 1973. The location <br />of these earlier borings are also shown on the attached sketch. <br />• <br />Soil sampling was done according to,the,procedure described-by ASTM: D <br />1586-67. Using this procedure, a 2" O.D. split barrel sampler is driv- <br />en into the soil by repeated blows of `a 140 lb weight falling 3011. <br />After an initial set of 611, the number of blows required to drive the <br />sampler an additional 12" is known;as the penetration res tance or N <br />value. The N value is an index ofthe relative density of cohesionless <br />soils and the consistency of cohesive soils..' <br />As the samples- were obtained in the field, they were visually and manu- <br />ally classified by the crew chief in accordance with ASTM: D 2487-69 <br />(Unified Soil Olassi.fication,System) and ASTM: D 2488-69. Representa- <br />tive portions of all samples were then sealed and returned to the labo- <br />ratory for further examination and for verification of the ;field classic <br />AS A MUTUAL PROTECTION TO CLIENTS, THE PUBLIC AND OURSELVES, ALL REPORTS ARE SUBMITTED A$ THE CONFIDENTIAL PROPERTY OF THE CLIENT. <br />