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<br />ANNUAL REPORT <br />Operator: United Companies of Mesa County <br />Operation: Preston Pit Extension <br />File Number: M-1980-022 <br />Anniversary Date: February 2, 2002 <br />RECEPVE® <br />FEB 0 4 2002 <br />Division of Minerals and Gealagy <br />Preston Pit Extension was active during the report year. This site was the main offce site for <br />United Companies for many years as well as a gravel source. The site was used for gravel storage <br />during 2001. The Maintenance Shop at the site was used for mechanical work on United <br />Companies' equipment. <br />Weed control spraying was done at this site two times during 2001. Curtail was used to treat <br />knapweed during late March. Curtail was again sprayed during September to kill any knapweed <br />that survived the Spring treatment. Knapweed has not been a serious problem at this site in the <br />past. United Companies instituted a program in 2001 to chemically treat al] of our sites in Mesa <br />County in an attempt to control knapweed. <br />The old office buildings were not removed from the site during 2001. <br />