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.5`5S <br />j o' ©~ G `~ <br />Fro,-t; United Companies / <br />Noxious Weed Control Program <br />Revised Apri12005 <br />River Road Pit Permit No. M-1991-136 TR-O1 `~ <br />~.. <br />,.~~ <br />JUN 2 02005 '~ <br /> <br />P~2 (~espo~se <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 <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 include: ~~ <br />-~ Preventing the encroachment of noxious weed species into un-infested'~eas9~(~y ~~~L <br />- Detecting and eradicating new weed species. °~o/ 2 ~ ~® <br />- Containing large-scale infestations. ~%m <br />- Controlling large-scale infestations using an integrated approach. 8~6 <br />- Revegetation. ~'a;, <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 yeaz. Shown below is our weed treatment <br />schedule. <br />Timine for weed control by_species & growth stake. <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 />