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°~ II~CI{IlliiiiiP,iilll~il! , <br />.~ ~ NOV 1 1 1917 <br /> <br />COLORADO DEPARTMENT OF HEALTH <br />1210 EAST 11TH AVENUE <br /> <br />DfNVER, COLORADO 80?20 PHONE 3B8-6111 <br />Mthony Aabbins, H.D., N.P.A. Ececvtl vs DS actor <br />November 10, 1977 <br />• <br />Carl J. Johnson, M.D., M.P.H. <br />Director of Health <br />Jefferson County Health Department <br />260 South Kipling Street <br />Lakewood, Colorado 80226 <br />Dear Dr. Johnson: <br />In reply to your letter of June 10, 1977, pertaining to trucks carrying <br />ore through the city of Golden from the Schwartzwalder Mine, the follow- <br />ing actions were initiated: <br />1. Samples were collected from the gutters along Washington <br />Street from Highway 58 to the edge of the residential part <br />of town (approximately 3rd Avenue). A sample was colleted <br />from along the side of Highway 58 near the 44th Avenue :ross- <br />over. These samples were analyzed for natural uranium. The <br />results are as follows: <br />LAB N0. LOCATION <br />2182 Hwy 58 at 44th Avenue <br />2183 East side of Washington Street from <br />2nd Avenue to 6th Avenue <br />2184 West side of Washington Street from <br />2nd Avenue to 6th Avenue <br />2189 Sth Avenue and Illinois and 5th Avenue <br />and Cheyenne Streets <br />* - Less than 200 mesh soil fraction <br /> <br />ug of uranium per gram of soil* <br />3.4 + 3.0 <br />8.7 + ~).8 <br />8.2 + ~).7 <br />1.5 + 0.3 <br />The only uranium soil samples the Department has analyzed in the area <br />are the 1971-1973 soil samples from the general vicinity of Rocky Flats. <br />The range is 0.4 - 37.4 pg of uranium per gram of soil. <br />The average value for uranium in the Front Range of Colorado'is 4.6 ug/g <br />• (Adams and Lowder, 1964) with considerable variations found between individual <br />samples and locations. <br />