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Page 17 <br /> 6.4.5 EXHIBIT I/J — Soils and Vegetation Information <br /> fertilization will be determined prior to the time of seeding where appropriate, and may be <br /> reported in the OMLR Annual Reports, as appropriate. <br /> WEED MANAGEMENT PLAN: <br /> Mapping and Identification: <br /> Field identification and location of targeted weed species is fundamental to determining the extent <br /> and character of weed infestation; and in the subsequent development of a treatment plan. Due <br /> to the complex nature of identification, assistance with identification and mapping will be sought <br /> from among Weld County Weed and Pest Division; Colorado State University Cooperative <br /> Extension Service; U.S. Natural Resources and Conservation Service; as well as on-line and <br /> internal resources. <br /> Mapping will attempt to identify general areas of infestation within the permit boundary, and <br /> vectors of infestation from inside or outside the permit boundary. Vectors are a consideration in <br /> prevention of future infestation, which may affect on-site behaviors, including method and means <br /> of access within permitted lands. An expectation that vectors from adjacent lands must be treated <br /> by adjacent landowners if treatment on permitted lands is to be fruitful is part of continuing <br /> treatment considerations. <br /> Since the list of noxious weed continues to grow; and considering the development of new <br /> treatments; this management plan is intended to retain the flexibility needed to meet future <br /> conditions and capabilities in the arena of weed management and control. The primary species to <br /> be identified, mapped (if found), and treated will include those species on the State of Colorado <br /> noxious weed list, as updated. <br /> It should be noted that many weeds are sourced and vectored from adjacent lands and <br /> waterways. Weed management will suffer to diminishing effects that may beyond the capacities <br /> of the Operator to ameliorate if responsible weed management fails on those lands. Consideration <br /> of due diligence should apply respective of on-site efforts and limitations due to sources and <br /> vectors beyond the reach of the Operator. <br /> Treatment: <br /> Once the nature and extent of weeds have been mapped, and vectors identified; a course of <br /> treatment options will be considered in order of priority of economy and effectiveness. The overall <br /> object of weed management will be to control weeds by establishing a healthy competitive stand <br /> of vegetation that wins the competition for plant available water. This effort is linked to on-site <br /> soil management; including monitoring of soil fertility and percent organic matter on problem <br /> lands; relative to distribution and amount of field available moisture on affected areas. <br /> Physical weed control at the site will utilize non-chemical means, unless, due to weed morphology, <br /> or other factors, circumstance require application of other methods or an approved herbicide. If <br /> chemical weed control is utilized, it will be conducted in compliance with manufacturer's <br /> VARRA COMPANIES, INC. TWO RIVERS SAND GRAVEL AND RESERVOIR PROJECT MARCH 2O22 <br /> A REGULAR IMPACT[1121 CONSTRUCTION PERMIT APPLICATION-COLORADO DIVISION OF RECLAMATION MIING&SAFETY <br /> OFFICE OF MINED LAND RECLAMATION <br />