I am a licensed surveyor in Pennsylvania and work for a full service Civil Engineering Company. I have been getting a lot of requests for grading permit plans. More and more townships are requiring Infiltration beds for roof drainage discharge. Also, Infiltration trenches along driveways. The calculations are pretty straight forward. Can a PA licensed land surveyor sign off on a house permit plan containing these drainage features? I have always had an in house licensed engineer perform the calculations. But I am just curious if any Pa licensed surveyors have ever done this work? the PA survey practice literature is very unclear in my opinion as to what a surveyor can or cannot do. The last thing I want is to get in trouble for performing "engineering" without a license.