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20110425092935115.pdfLambert, Jennifer From: Lambert, Jennifer Sent: Wednesday, April 20, 2011 1:26 PM To: 'Robert Long' Subject: FW: BLD 20100999 -Read Residence- Final Storm Comments - Please see the comments below from Jerry Shuster. The comments can all be redlined if you don't want to submit additional plans. Also, please label the forceline. Thanks, jenn#&- Lambert �n�zneeY� r ct)_ / 425-771-0220 ext -1321 i enuifer.lambert(alei.edmonds.wa.us From: Shuster, Jerry Sent: Wednesday, April 20, 2011 1:16 PM To: Lambert, Jennifer Subject: BLD 20100999 -Read Residence- Final Storm Comments Since the detention pipe does not have a access port and it has a section with a reduced diameter connecting to the flow control manhole, a vent pipe should be installed. A vent pipe should connect the larger detention pipe to the control structure Regular CMP should not be used for detention pipes. The City has accepts the following materials for stormwater detention pipes on private property: o Non -reinforced concrete o Aluminized steel (Type 2) 14 gauge or better o Corrugated HDPE (watertight), ASTM F2648 o PVC -SDR 35, ASTM -3034 or better o Ribbed PVC, ASTM D-2444 The responsible engineer shall ensure the material chosen meets or exceeds the loading requirements on the pipe. Jerry Shuster, P.E. Stormwater Engineering Program Manager City of Edmonds