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Page 18 <br /> 6.4.5 EXHIBIT I/J — Soils and Vegetation Information <br /> recommendations and in conformance with applicable federal, state, or local laws. Chemical <br /> treatment of weeds will be the last option considered except where all other methods of <br /> competitive control fails; including mechanical cutting, tilling, or removal of noxious weeds. <br /> Where possible, pre-emergent weed control chemicals will be utilized. An exception to chemical <br /> weed control would be operator applied concentrated vinegar based organic weed control that does <br /> not harm soil or water. This is especially advantageous in application near water bodies. <br /> In general, weeds will be mowed or mechanically removed before a seed head can develop. This <br /> will take priority over recently seeded areas expressing emergent grasses. Where mechanical <br /> means fail; chemical applications may follow according to recommendations from previously stated <br /> sources, and applied accordingly (see above) to prevent damage to grasses, aquatic species and <br /> wildlife. An example of Chemical treatment and primary noxious weeds can be found at the <br /> Colorado State University Extension Service website: http://www.ext.colostate.edu/. <br /> Still, predominant weed control efforts will focus upon prevention, principally through the <br /> establishment of a diverse stabilizing cover of grasses, as described earlier. Regardless of control <br /> methodology, the intent of mechanical and chemical methods will be to prevent weed species <br /> from reproducing vegetatively, or by seed in percentages that threaten the preferred species. In <br /> general, the idea is to aid the grasses in out competing weed species for plant available water and <br /> nutrients in the new soils, until such a time that the grasses are fully established over the applied <br /> areas, are dominant over the weeds, and capable of self-regeneration. It should be understood <br /> that some weeds will remain. Total eradication of weeds is unlikely under the best circumstances, <br /> and is not a reasonable expectation or likely outcome. <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 />