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17 <br /> 6.4.5 EXHIBIT I/J - Soils and Vegetation Information <br /> profile seed bed, while simultaneously facilitating healthier plant-soil-water relations and overall <br /> root development of the emerging grasses. As the roots of the emerging grasses develop and <br /> mature over time, the resulting root mass will serve to build upon the base percent organic matter <br /> content of the new soils, thereby increasing the potential for long term survival and spread of the <br /> established grasses. Soil testing may occur on the new soils to better gauge the need or success <br /> of any applied organic soil amendments respective of the resulting vegetative cover. <br /> The addition of fertilizer may also aid in the establishment, growth and survival of the emerging <br /> grasses. Fertilizer may be applied to the seeded areas at rates determined from soil tests of the <br /> reapplied soils. To this end, soils may be sampled as needed. Sampling will utilize a hand auger <br /> and approved NRCS soil sample bags, and utilizing recommended procedures. Any soil testing will <br /> be conducted by the CSU Soil Laboratory in Ft. Collins, Colorado. The tests will be used to <br /> monitor soil quality and suitability of any amendments. Fertilizer may be withheld until after <br /> emergence to deter the encouragement of weed species. The use, composition and rates of <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. 2Weed management <br /> will be under the supervision of a certified weed management specialist. All applicable <br /> requirements currently in force at the time will be adhered to. The primary species to be <br /> identified, mapped (if found), and treated will include those species on the State of Colorado <br /> noxious weed list, as updated. List A species will be eradicated and List B Species will be <br /> Z Adequacy Item 34/50 <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 WING&SAFETY <br /> OFFICE OF MINED LAND RECLAMATION <br />