// CODE SNIPPET
P-715.2.1 Slope Toward Building
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In cases where paved or unpaved areas slope toward the building, the drain shall be located a minimum of 18 inches from the exterior wall and the lowest elevation shall be established at the location of the drain. Trench drains shall be utilized where paved areas cannot be sloped to accomplish the intended purpose of preventing water from entering the building or draining against the foundation walls.