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NLVal , SS�� Table 1 below summarizes the surface and subsurface soil physical and thecharacteristics from the two soil samples retrieved from the 4 ft test boring: TABLE 1 SOIL PROFILE CHARACTERISTICS AND ANALYTICAL TEST RESULTS SAMPLE DEPTH AND SOIL SOIL NITRATE- pH AND (SAMPLE NUMBER ON CLASSIFICATION NITROGEN CONTENT CATION EXCHANGE CAPACITY TEST RESULT FORM) In meq/100g 2 FT DEPTH ati 3 ppm NO,-N 7.4 17.5 meq/100g 4 FT DEPTH ('lar I m NO -N 8.0 18.7 me /100 C. PERCOLATION TEST RESULTS SS 6.2. To assess the permeability at the prescribed depths of the on-site soils, the three afo ntioned percolation test borings were completed in the locations depicted on the Site Plan found in Appendix C. SSS 66 ,,-' After drilling the perc test borings,the sidewalls of the borings were scored with a pry- bar to open potentially smeared sidewalls. Two inches of fine gravel was placed at the bottom and three-inch perforated PVC pipe was inserted in each test boring. After this, each boring was pre- saturated with 12 inches of water(except for the 24 inch boring which was pre-saturated with 24 inches of water) -24 hrs prior to the start of testing. SSS(6:4,0. On March 13, 2015, percolation testing commenced at 0730 hrs. No standing water was observed after the 24-hr soak period in any of the test borings. Consequently, EHD Perc Test Procedure#2 were conducted for the test borings. Testing was done over a four-hour period to induce maximum soil saturation. Only the 36-inch test boring is recognized as "official" by EHD. The test results indicate identical perc rates of 25.0 min/in rate for the 24 and 48 inch test borings and 35.7 min/in for the 36 inch test depth after complete soil s ation. The water level was not refilled to the starting level for the last 30 minute test,which slowed percolation. This illustrates the effect that i head pressure has on soil permeability. A summary of the perc test results with corresponding application rates in gallons of effluent accepted per square foot of soil per day are illustrated in Table 2: T.aMA' 2 PERCOLATION TEST RESULTS WITH CORRESPONDING APPLICATION RATES IN GALLONS /FT /,PAY 36 INCH DEEP PERC TEST BORING 35.7 min/inch / .467 gallons/ftZ/day PERCOLATION RATE/APPLICATION RATE OFFICIAL PERC TEST Page -3-