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NLS§ 5.3 Table 1 below summarizes the subsurface soil characteristics encountered: <br /> TABLE l <br /> SOIL PROFILE CHARACTERISTICS AND <br /> ANALYTICAL TEST RESULTS <br /> SAMPLE DEPTH SAND,SILT AND SOIL SOIL NITROGEN pH AND <br /> CLAY CLASSIFICATION CONTENT CATION EXCHANGE <br /> PERCENTAGES CAPACITY <br /> 40 INCH DEPTI1 21%, 38%,41% Clay I ppm NO;-N 7.0 14.0 meq/100g <br /> C. PERCOLATION TEST RESULTS <br /> SSS§6.2. To assess the permeability correlated with an application rate of the effluent disposal <br /> soils, a percolation test boring was completed in the replacement/reserve leachfield location as <br /> depicted on the Site Plan found in Appendix B. This site plan is actually a mirror image of what was <br /> installed. In other words, the installed primary field is where the replacement area is denoted and <br /> vice versa. The test depth was 40 inches below existing grade giving a detailed observation of <br /> subsurface permeability from approximately 34 to 40 inches in depth. <br /> SSS§6.3. On December 20, 2018, the perc test boring was hand-drilled in the referenced location. <br /> The sidewalls of the boring were scored with a pry-bar to open potentially smeared sidewalls. Two <br /> inches of fine gravel was placed at the bottom and three-inch perforated PVC pipe was inserted in <br /> the boring. The test boring was then pre-saturated with 12 inches of water 24 hrs before the start of <br /> testing. <br /> SSS§ 6.4, 6.5. On December 21, 2018,percolation testing commenced. No standing water was <br /> observed after the 24-hr soak period. Consequently, EHD Perc Test Procedure#2 was conducted in <br /> which testing was done over a four-hour period to induce maximum soil saturation. The test results <br /> indicate a perc rate of 27.7 minutes per inch(min/in). A summary of the perc test results with <br /> corresponding application rates in gallons of effluent accepted, per square foot of soil, per day are <br /> found below in Table 2: <br /> TABLE 2 <br /> PERCOLATION TEST RESULTS FOR THE DISPOSAL AREA WITH <br /> CORRESPONDING APPLICATION RATES IN GALLONS/FT'/DAY <br /> 40 INCH DEEP PERC TEST BORING 1 27.7 min/inch / 0.556 gallons/ft`/day <br /> PERCOLATION RATE/APPLICATION RATE <br /> Application Rate adapted from California State Water Resources Control Board OWTS Policy and is derived from the Perc Rate. <br /> Chesney Consulting <br />