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The CEC measures the ability of the soil to theoretically trap and hold ammonium molecules. All four sample sites possess very high CEC and illustrates a high potential for the clay soil to retain ammonium molecules that remain as ammonium and do not nitrify. Nitrification is also hindered due to the alkaline pH and from the anaerobic micro-sites within the clay soil. NLS§3.3, SSS§ 5.3,5.4. Table 1 below summarizes the encountered soil physical and chemical characteristics from the four test locations: TABLE 1 SOIL PROFILE CHARACTERISTICS AND ANALYTICAL TEST RESULTS SAMPLE NUMBER ON SOIL SAMPLE DEPTH NITRATE- pH AND TEST RESULT FORM CLASSIFICATION NITROGEN CONTENT AND CATION EXCHANGE (SAMPLE DEPTH=36") AND CLAY"% DECREASE%FROM SURFACE CAPACITY CONCENTRATION (CEC) (Surface Soil=14 ppm) BD-AS(Bldg A-South) Clay- 50% 10 ppm NO3-N 29%Decrease 8.1 34.3 meq/100g BD-BS(Bldg B-South) Clay Loam-35% 14 ppm NO,-N Same 8.3 25.3 meq/100g t AN(Bldg A-North) Clay Loam-38% 10 ppm NO,-N 29%Decrease 8.4 27.8 meq/100g BN(Bld B-North) Clay Loam- 36% 5 ppm NO;-N 64%Decrease 7.8 34.9 meg/I OO C. PERCOLATION TEST RESULTS SSS§ 6.2. To assess the permeability in the four test borings, the aforementioned percolation test borings were completed in the locations depicted on the Site Plan found in Appendix C. SSS§ 6.3. After drilling,the sidewalls of the borings were scored with a pry-bar to open potentially smeared soil surfaces that may have occurred due to the clay soil, and the cuttings removed. Two inches of gravel was placed at the bottom and three-inch perforated PVC pipe was inserted in each test boring. After these procedures, the borings were pre-saturated with 12 inches of water approximately 24 hrs prior to the start of testing. SSS§6.4, 6.5. On March 19, 2019, percolation testing commenced for the South disposal areas, and on April 1, 2019 for the North disposal areas for Buildings A&B. No standing water was observed after the 24-hr soak period. Consequently, EHD Perc Test Procedure #2 was conducted. Testing was done over a four-hour period to induce maximum soil saturation, which was easily achieved since this rainy season was one of the heaviest on record. The test results indicate a perc rate after complete soil saturation of 41.7 min/in and 125 min/in for the South tests and 35.7 min/in for both North tests. A perc rate of 60 min/inch or faster is considered passing and rates slower than this require an engineered system. The 125 min/in rate in the SWC or the property can be considered an anomaly. 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 below: I Page-3- Chesney Consulting