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Conservation Commission <br /> July <br /> o missi n <br /> July 1 , 1988 . <br /> Page 3. <br /> . Baxter' stated he does not have an answer re volume of storage. <br /> They are not looking to put in any detention areas. There -is a larger <br /> area leaching into the ground than what is being allowed to pass <br /> through. <br /> Mr. Rosenberg stated he is concerned with the design criteria; the <br /> culverts are designed for a 50 year storm but a 10 year design on the <br /> waterways. Also, someone is under an order to hake changes in the road <br /> and there is a distinct possibility changes would be made that alter <br /> this flow, up or down. <br /> Mr. Baxter stated the design for the road would be the same as Noisy <br /> Hole Road design which is a 10 year storm. <br /> Mr. Ki rrane stated every goad approved by the Planning Board is the <br /> same. <br /> Lisa advised Charles Rowley suggested, on another site involving the <br /> wetland, that they use the 25 year storm. <br /> Mr. Rosenberg again stated concern with the problem of dumping <br /> hater gets on the road surface right into the wetland without any <br /> traps. <br /> Mr. Baxter stated they could offer some type of treatment before <br /> discharge into the wetlands . <br /> CONTINUED TO JULY 289 1 , <br /> F <br /> 7: 45 - Colonial Cas (Coastal Engineering) To install a gas gain along <br /> the south side of Route 151 within the road layout. Caren Blanchard <br /> and Bob Dowling presenting. The project starts at the Fire-Police <br /> complex and runs to Brickyard Road passing various wetlands. <br /> siltation fence is proposed. They will be 30 inches down <br /> approximately and will backfill the same day. Near the Fire Station <br /> there are existing haybals and siltation barrier they would like to <br /> use. <br /> Mrs. Jacobson advised parts of it are not in good condition and should <br /> be looked at. <br /> Mr. Dowling stated they will stag off the road and will not be tearing <br /> up any pavement <br /> Mr. Rosenberg questioned what would be done with the headwall . Mr. <br /> Dowling stated nothing, the top of the headwall is at elevation 35 and <br /> they will be at 45. <br /> HEARING CLOSED - ORDER OF CONDITIONS IN 21 DAYS. <br /> uinaquisset Avenue: Fearing on June 30. <br /> Question was raised whether the pipes for the water and gas could be <br /> installed at the same time. <br /> Mr. Dowlins stated the water company would have to fill two feet of <br />