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077 <br /> of the location for spray irrigation will be based on water quality evaluation of the <br /> Proposed System. <br /> General soil and site evaluation of the site was performed by Soil and Environmental <br /> Consultants, Inc. (SSEC) to determine this approximation of loading rate. Their review is <br /> based on soil borings in the vicinity of the application area. <br /> The soil is a Wehadkee soil, sandy clay loam class in the 3-9% slope range with good <br /> vegetative cover of old growth pine. The Sprinkler Irrigation Association (1969) defines <br /> a basic infiltration rate for these conditions to be 0.15 to 0.25 in/hr. This value <br /> increased by 25% gives an instantaneous application rate of 0.18 to 0.31 in/hr. Prior <br /> to final spray design, additional soil borings and a water balance based on field <br /> observations will be developed. <br /> The spray irrigation system to the forest will be based on a loading rate of 0.14 <br /> gallons/square foot/day. Based on a daily flow of 3550 gallons, 25,357 square feet <br /> of forested area will be irrigated. <br /> Phase II Construction of Soccer Field: Construction of the soccer field will require use of <br /> the spray irrigated forested area. Spray irrigation to the forest will be discontinued and <br /> the wastewater will be conveyed to the Current System during construction of the soccer <br /> field. Upon completion of the soccer field, wastewater from the new gymnasium will be <br /> treated by the proposed treatment process and spray irrigated to the new soccer field or <br /> conveyed by underground piping to the Current System. Determination of the location for <br /> spray irrigation will be based on water quality evaluation of the Proposed System. <br /> Hydraulic loading rate to the new soccer field will be determined based on conditions <br /> after its construction. The field will be 195 feet x 330 feet (64,350 square feeti. <br /> Based on a daily wastewater flow rate of 3,550 gallons/day, the field loading rate <br /> would be .06 gallons/square foot/day if the entire soccer field is used. <br /> Phase III Construction of Meeting House, Early School and Amphitheater. These <br /> facilities do not represent any additional need to accommodate wastewater flow within <br /> the Proposed or Current Systems. These future facilities will be utilized by individuals <br /> included in the 3,550 gallon design flow calculation. Decorative ponds and fountains <br /> designed to utilize redaimed water from the Proposed System will be constructed in <br /> association with the surroundings of the amphitheater. The water supply to these features <br /> will be augmented with a potable water supply. If suitable water quality is not provided <br /> by the Proposed System for the ponds and fountains, the reclaimed water will be <br /> conveyed to the Current System and the decorative features supplied by the potable <br /> source. <br /> Hal House <br /> Wetlands Ecologist <br /> Research Assodate <br /> —___ NC State University <br />