Laserfiche WebLink
NLS§ 3.3, SSS§ 5.3. Table 1 below summarizes the surface and subsurface soil characteristics <br />tested from the soil sample: <br />TABLE 1 <br />SOIL PROFILE CHARACTERISTICS AND <br />ANALYTICAL TEST RESULTS <br />SAMPLE LOCATION <br />SAND, SILT AND CLAY <br />SOIL <br />SOIL NITROGEN <br />pH AND <br />(SAMPLE NUMBER) <br />PERCENTAGES <br />CLASSIFICATION <br />CONTENT <br />CATION EXCHANGE <br />CAPACITY <br />DISPOSAL AREA <br />15.6%, 51.9°/,, 32.5% <br />Silt Clay Loam <br />16 ppm NO, -N <br />7.6 19.2 meq/100g <br />(36-42) <br />C. PERCOLATION TEST RESULTS <br />SSS§ 6.2. To assess the permeability of the proposed disposal area, a percolation test was completed <br />in the location depicted on the Percolation Test Field Data Sheet found in Appendix C. <br />SSS§ 6.3. On February 24, 2022, a 42" deep percolation test boring was hand-drilled.in the <br />referenced location. The sidewall was scored with a pry -bar to open potentially smeared surfaces. <br />Two inches of pea gravel was placed at the bottom and three-inch perforated PVC pipe was inserted <br />to prevent cave-ins. The test boring was pre -saturated with 12 inches of water at 0800 hrs, 24 hrs <br />before the start of testing. <br />SSS§ 6.4, 6.5. On February 25, 2022, 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 />reveal a passing perc rate of 17.9 min/in. <br />A summary of the perc test results with corresponding application rates in gallons of effluent <br />accepted per square foot of soil, per day, are found in Table 2: <br />TABLE 2 <br />PERCOLATION TEST RESULTS FOR THE PRIMARY DISPOSAL AREA WITH <br />CORRESPONDING APPLICATION RATES IN GALLONS / FT / DAY <br />42 INCH DEEP PERC TEST BORING 17.9 min/inch / 0.686 gallons/ft'/day <br />PERCOLATION RATE / APPLICATION RATE <br />Application Rates adapted from Water Quality Control Policy for Siting, Design, Operation, and Maintenance of Onsite Wastewater Treatment Systems. <br />Chesney Consulting <br />