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SOIL BORING Page <br />PERCOLATION TEST RESULTS Date <br /> <br />Mottled soils and soil chroma are indicators of the seasonally saturated zone. The b.ott(m of ~e drainfield must be at least 3 ft. above this zone. <br /> <br /> Jon M. Christensen · ISTS License # 293 · 427-0116 <br /> /- <br /> <br />I <br />I <br /> <br /> <br />