Yes it is. 100x40=4000. (that's if the muck is 1' deep over the whole pond bottom)
4000�27=148 (27 cu. ft. in a cubic yard)

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).