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, <br />of the location for spray irrigation will be based on water quality evaluation of the 10 <br />Proposed System. <br />General soil and site evaluation of the site was performed by Soil and Environmental <br />Consultants, Inc. (SPEC) 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 feet). <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 reclaimed 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 qualify 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 Associate <br />__ NC State University <br />