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WEED MANAGEMENT PLAN <br />Management Objective <br />Manage noxious weeds and plant pests within the permit area. <br />Weed Species to be Controlled <br />Aggregate Industries -WCR, Inc. (AI) will control those plant species identified by current State <br />statute or regulation as noxious. Plant pests are defined as those biological species that <br />significantly predate the desirable vegetation of the project site. <br />Weed Management Actions <br />Monitoring <br />The presence of noxious weeds and plant pests will be monitored annually, at which time weed <br />control efforts will be reviewed and specific management measures adjusted as necessary. <br />Management measures will be undertaken where a single or combination of noxious weed <br />species or plant pests comprises or shows a deleterious effect to the live vegetation cover in the <br />mitigation area as determined by observations of a re-vegetation or weed control specialist. <br />Control Measures <br />AI will contract with a licensed herbicide applicator/weed management specialist to implement <br />the weed management plan. Noxious weeds or plant pests may be controlled by any <br />combination of cultural, mechanical, biological, or chemical measures. Weed control measures <br />will be developed specifically for the noxious weed species encountered and in consultation with <br />Adams County, local weed control district and/or the Colorado State Department of Agriculture <br />as necessary. <br />Topsoil slated for removal from the site will be treated with along-term residual pre-emergent or <br />post-emergent herbicide to reduce noxious weeds prior to removal. AI will conduct an <br />aggressive mowing program the first year following re-vegetation, withholding herbicide use <br />until the following year to avoid damaging new seedlings. Herbicides will be applied by a <br />licensed commercial applicator. Stockpiles that remain undisturbed for more than one season <br />will be seeded with a temporary cover crop. Where noxious weed control measures cause <br />disturbance to the remaining vegetation, seeding or planting of desirable replacement vegetation <br />will occur during the first normal planting or seeding season after weed control measures have <br />been implemented and deemed successful. <br />Contact Person(s) <br />During mining, the Operations Manager at the site will be the contact person for weed control. <br />When mining is completed, the weed control contact person will be Aggregate Industries' <br />operations staff at the corporate office in Golden, Colorado. <br />Aggregate Industries will be responsible for weed control until the site is released by the <br />Colorado Division of Minerals and Geology (DMG). At that time, responsibility for weed <br />control will transfer to the land owner. <br />Aggregate Industries -WCR, Inc. Exhibit J - 3 <br />Tuscon South Resource MI.RB 112 Permit Application <br />H:\3979_019_01\MLRB\Tmson MLRB Applicatim~.doc <br />