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Rifle Gravel Pit #1 June 2021 <br /> 6.3.4 Fertilization <br /> The proposed grass mixes will require little to no fertilization. <br /> 6.3.5 Revegetation <br /> When final landform is achieved, the surface will be stabilized by vegetation to reduce <br /> further soil erosion from wind or water, provide forage and cover, prevent dust as required <br /> by State Statute, and reduce visual impacts. A uniform vegetative cover will be established <br /> with an individual plant density of at least 70% of pre-disturbance levels within four growing <br /> seasons per Garfield County requirements. Noxious weeds will not be counted as part of the <br /> 70 percent cover. The seed mixes detailed in Figure 14, Exhibit E2 will be used to <br /> revegetate the site. <br /> 6.3.6 Topsoiling <br /> Topsoil will be stockpiled, and later placed on disturbed areas. The anticipated range of <br /> depths for those areas where topsoil will be replaced will be 6 inches to 1 foot. <br /> 6.4 Revegetation Success Criteria <br /> Revegetation will be deemed adequate when erosion is controlled, and vegetation is <br /> approximately 70 percent of surrounding undisturbed vegetation profiles and is considered <br /> satisfactory according to DRMS standards. State or county-listed noxious weeds, as well as <br /> alien annual invasive species do not count as part of the 70 percent cover. <br /> 6.5 Noxious Weed Control <br /> Noxious weeds identified through the Colorado Noxious Weed Act (C.R.S. 35-5.5)will be <br /> controlled per state and county regulation. Control will be achieved by: <br /> • A weed survey of the permit area will be completed every spring. <br /> • Infestations will be treated using approved chemicals and will be sprayed by the <br /> landowner or a certified applicator. <br /> • After reclamation, weed surveys and treatment will continue until the perennial cover <br /> and production of the site have met DRMS requirements and bond release has been <br /> obtained. <br /> The Garfield County Vegetation Manager and the NRCS was consulted during the <br /> development of the Weed Management Plan (Attachment C). The reclamation plan does <br /> not contemplate total weed removal on the property; past experience has shown that some <br /> weed infestation is common on the property and in surrounding areas, and complete <br /> eradication will not be feasible given limitations in control methods and surrounding <br /> infestations. <br /> Additional information regarding noxious weed control includes the commitment that Scott <br /> will treat all noxious weeds on a biannual basis, with an herbicide application in the spring <br /> (late June) and late summer(late August). Gravel storage piles will be treated with a bare <br /> ground herbicide if the piles are expected to remain for more than 1 season. Scott will use a <br /> Colorado-certified herbicide applicator. All work equipment will be sanitized and have any <br /> existing dirt, vegetation, or seeds from landscaping and operational work removed before <br /> 29 <br />