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gSS <br />lo= Divt6'~ <br />J:rorc:UnitedCompanies / <br />Noxious Weed Control Program `~ <br />Revised Apri12005 <br />.:. <br />,.~` <br />JUN 2 0 P005 <br />/ / ,/ ~F7cA5l Ju'prtSptt Ftc',;w {?+wT;e;xi <br />Colona Gravel Pit, Permit No. M-1994-005, TR-03 r~+ ®t 6G~-r~`,~. w ~,~.,;.;~y <br />P,412 (2~spoys~ <br />As part of United Companies program to maintain our operating sites and reclaim gravel <br />pit sites, control of weeds is an important aspect of our effort. Primarily this program <br />targets plants that have been classified as noxious weeds by the State of Colorado and the <br />Counties where United Companies operates facilities. This program also includes a new <br />section to comply with a recent amendment to the Division of Minerals and Geology <br />Weed Policy concerning Tamarisk and Russian Olives. <br />According to State law (CRS 35-5.5, The Colorado Weed Management Act), noxious ~,u~ <br />weeds must be managed. Integrated Weed Management is a strategy that has been° . <br />suggested as the structure for control programs. The elements of this approach incline: Gti .ty <br />~~. ~ ,~~ <br />- Preventing the encroachment of noxious weed species into un-infested areas. ~d ~, <br />- Detecting and eradicating new weed species. ~~ <br />- Containing large-scale infestations. %; <br />- Controlling large-scale infestations using an integrated approach. '6 <br />- Revegetation. <br />Our sites in Mesa County as well as our sites in other counties have active control <br />measures for noxious weed species. Our program consists of a competent qualified weed <br />control specialist treating each location twice a year. Shown below is our weed treatment <br />schedule. <br />Timing_for weed controls species & erowth stage. <br />a. Horey Cress -Spring. When plants are pre bolt to early bloom and fall during <br />during any regrowth. Herbicide: Excort XP. <br />b. Russian Knapweed -Spring from bolt to bud and fall at root bud growth <br />stage. Herbicide: Redeem R & P. <br />c. Perennial Pepperweed - Spring at bolt to pre-bloom and fall at root bud <br />growth stage. Herbicide: Escort XP. <br />Tamarisk & Russian Olive <br />Management Plan <br />The Mined Land Reclamation Board adopted an amendment to their weed policy <br />concerning Tamarisk and Russian Olive on January 19, 2005. The amendment applies to <br />all affected areas of a mine site that were not reclaimed prior to January 19, 2005. This <br />