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approximately three ft below rade, which will be an approximate g pp to depth of a leachline inlet. The water was allowed to percolate away for 24 hrs. The two borings were re-filled, and again Lallowed to seep away for 24 hrs. On the third day, measurements were taken as documented on the attached perc test report. Since it is proposed that the Open Air Mall will operate three days per week, this test illustrates pere rates for the "last" day of the week and the worst-case scenario with respect to maximum soil saturation. Different soil strata encountered during the drilling process are of particular importance in calculating seepage pit perc rates. Since the sidewall of the seepage pit is the primary infiltrative surface, perc tests should be performed in each change in soil structure. However, there was no dramatic change in the soil morphology to boring termination at 25 ft for both borings, consequently, falling head tests were used and not weighted percolation rate tests. A discussion of the falling head tests is found in the next Section. III. PROPOSED SEPTIC SYSTEM LOADING, DESIGN AND EXISTING SYSTEMS Loadina Estimated daily wastewater flows for the Open Air Mall are difficult to project. It is anticipated that there will be 5,000 customers going through the Mall on each of the three days. An additional 1,000 ancillary people such as vendors, maintenance, law enforcement, etc. may also be present on a daily basis. Our best guesstimate may be to assign 5 gals/person/day for each of the three days which would be incorporating a 25% safety factor. Therefore, the daily wastewater flow would be 30,000 gals. As referenced earlier, the shallow perc tests failed for each of the four proposed leachfeld areas. The deeper, seven to nine ft deep perc test results were much more favorable. It is recommended that each leach field absorption trench be excavated to native material, which is represented by these deeper perc tests, and backfilled with engineered material. These deeper perc test rates can then be used to calculate absorption capacity. To calculate leach line requirements, the Base Tank Capacity (BTC) is added to the Average 4 Vaffe search y�