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4" THREADED CAP <br /> FINISHED GRADE <br /> 4" SCH, 40 PVC PIPE <br /> WRAP ENDS (2) WITH FILTER <br /> FABRIC ❑VER N❑N-METALIC <br /> 1/8" SCREEN, SECURE WITH <br /> ZIP TIE DR EQUIVALENT <br /> S❑IL - <br /> EFFLUENT <br /> INTERFACE <br /> f'MIN. <br /> (TYP) <br /> 12"MIN. <br /> ❑ BSERVATI ❑ N TUBE <br />