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3304 252nd St. NE <br /> Arlington,Washington 98223 <br /> Telephone: (360) 435-0449 <br /> DiversifiedEngineering Services Fax: (360) 435-9008 <br /> August 10, 1995 <br /> File: 0100-01-01 <br /> Ms. Jane Zimmerman <br /> City of Everett Public Works <br /> 3200 Cedar Street <br /> Everett, WA 98201 Drainage Calculations — Dennis Petroleum <br /> Facility, PC H48522 <br /> Dear Ms. Zimmerman: <br /> Enclosed you will find the revised storm water calculations which includes an analysis of the <br /> pipe conveyance system through the project and through the Washington Natural Gas site to <br /> 75th Street S.W. The detention pond has been revised to include a wetland treatment cell. <br /> As a result of adding the wetland treatment cell the pond control structure had to be revised <br /> as well. All calculations include the paved access road as well as existing runoff from Lot I. <br /> Respectfully, <br /> Dive sifted Engineering Sgkviccs �D <br /> b ee <br /> David L. Parshall,P.E. <br /> AUuu- 101995 I� <br /> ............. <br /> CITY OF EVERETT <br /> Bldg, Permit Counter <br />