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13 May 1999 <br /> Page 7. <br /> over again. He recommended doing the,Mashpee River once, leave the stuff <br /> alone and ten years down the road, if it becomes necessary again, then there <br /> may be some different technology . <br /> Mr. Rosenberg stated in order to insert the material, you have to dig a hole <br /> three acres in area, five feet deep. Mr. Taylor stated that would be if dealing <br /> with a flat surface. Mr. Rosenberg asked what happens to that material that <br /> is excavated, 21, 200 e*yr <br /> Mr. Hanks stated if you have clean sand, you would wind up with 30,000 .y. <br /> . f excess material. But if digging out clean sand and you truck it over to <br /> Rppnsst Beach as beach nourishment, you can berm up around the crater <br /> made so that you don't have to dig all that up. In the end you would want t <br /> cover with sand before the topsoil is put back. <br /> Mr. wollon aupt asked, if using the berm, aren't you impacting the soils` e <br /> stated he understands what they are trying to achieve, what they have as a <br /> final plan, but did net understand how they plan to get there. <br /> Mr. Hanks stated once the material sits there, rain is going to rinse it and <br /> over time leach the salt out. <br /> Mr. wirsen asked to where Mr. Hanks stated you would have to drain the <br /> pond and drain it right back into the river. <br /> Mr. Rosenberg stated they would have a pond with material on top ofit and i <br /> you drain the pond you would have to dig all-the silt you put in there in order <br /> to get the membrane out. Mr. Hanks stated that is correct but if building <br /> pend habitat, you need a membrane. Mr. Rosenberg stated it will be a <br /> stagnant pond. Part ofthis is argumentative, at some point you are going t <br /> ask the Commission to make a decision and at some point you are going t <br /> have to talk to the experts. Mr. Danks stated the decision time will come <br /> when dealing with an Order of Conditions and they are far from that at this <br /> point. They are trying to save money. <br /> Mr. Lumsden stated they are looking for guidance from the Commission. <br /> They have done a lot of preliminary work but have not done it all. <br /> Mr. Rosenberg stated if they can solve all the problems, the Commission <br /> night agree with them. <br />