Laserfiche WebLink
� -� <br /> `. ;lYl l G�J`f-G�- <br /> September 27", 2010 <br /> Ciry oF Evere[t <br /> Permit Services <br /> 3200 Cedar Street � <br /> i <br /> Everett,Wa 98201 <br /> Permit#: M1004-042 <br /> ItE:Sno-Isle Tech Skills Cenler—Building 2 Existiog Ve6icle Ex6aust Aoalysis <br /> Dear Aut6ority having jurisdiction, <br /> A field observation by the mechanical inspector prompted clarification for meeting the exhaust requirements for <br /> the e�sting under tloor vehicle exhaust system. <br /> Per our field test with an a'v-measurement flow hood to determine the curren[perfo�mance of the underground <br /> exhaust system,we have concluded that existing system is sufficient for vehicle use with the following exceptions: <br /> • No more than 3 vehicles u[ilizing the system at one time between Ports 1 tluv 1 L(sce attaclied diagram for <br /> clarity) <br /> • If a vehicle is undergoing dynometer testing,no other vehicles shall utilize the system when using the <br /> dynometer. <br /> • Replace existing On�Off switch for the fan.Currently the switch must be manually held down to ope:ate. <br /> • Stop use and abandon floor ports 12 and 13 in tlie diesel mechanics area.Low CFM values recorded are not <br /> adequate for dieset usage.(See attached diagram and tabulated daW for clariry) <br /> Please do not hesitate to call with any questions or concerns. <br /> Sincerely, Z <br /> . f <br /> HCE NGINEERS�INC. ��y� ' ` <br /> � , � ' <br /> �� <br /> Scott P. Zimbelman, P.E. 1 <br /> Principal <br /> �NAi.� <br /> �/1T�v <br /> BCE En¢ineers,inc. 6021 12"St.East,Suite 200 Fife, Wastiineton 98424 P 253.422.0446 F 253.922.0896 � �� <br /> I <br />