CORRESPONDENCE_1987-1991 - Laserfiche WebLink

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adjusted annually. Grazing levels will be established to permit vegetation management, not _ to fully utilize grazing capacity. No grazing will be allowed in the mitigation area until the 1991 season (beginning April 15, 1991). Five horses will be allowed in Mitigation Sites A-C during the second year after the start of construction. Another two horses will be allowed in Mitigation Site D. The number of horses shall be adjusted annually according to the standards set above. If grazing adversely affects the mitigation area, it may be terminated or reduced upon 24 hours notice or as soon as the animals can be reasonably relocated to another pasture. Monitoring of Grazing All grazing of pastures in the landfill footprint and grassland in the mitigation area shall be monitored annually duringlandfill. forage conditions cal monitor oeach Octobers other The qualified agent for the County shall evaluate the biological monitor shall use the actual use/utilization method to determine the stocking rate for each pasture for the following grazing season. The new stocking rate for each pasture shall be determined by measuring the RDM occurring in the pasture in October. The grazing goal will be 9001bs/acre RDM for each pasture. The number of lbs per/acre RDM shall be determined initially by following the 'Double Sample Method for Assessing RDM" (U. S. Forest Service 1984). This method consists of clipping and weighing the RDM occurring within one representative square-foot plot out of five plots per pasture. The remaining four plots in each pasture can be estimated visually. The representative plot shall be clipped as close to the ground as possible. Shrubs, tree and shrub leaves, droppings, and unpalatable forage are excluded. Current and past year's litter or shattered plant material at ground surface that can be readily picked up are included in the sample to be weighed. Unless the forage is wet or green, the clippings can be weighed directly on a gram scale. The grams per plot clipped are then converted to lbs/acre by using the following formula: (Grams/454)*(43,560/1 sq ft) = lbs/acre RDM The target RDM for each pasture is 900 lbs per acre. The next seasons stocking rate (AUMs) for each pasture shall be determined by using the following formula: ([RDM remaining - 900 RDM]*acres/1,000 lbs per AUM)+current AUMs Pasture A is 42 acres, Pasture B is 33 acres, Pasture C is. 19 acres, Pasture D is 19 acres, and Pasture E is 36 acres. Mitigation Sites A-C total about 70 acres, and Mitigation Site D is about 22 acres. 52