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ORICN F. ZITC <br />A�cM1ltac[ <br />JOHN W. JOMN�ON <br />Archrtecc <br />�oHN s. Hwre <br />ArcM1lq[c <br />BT[VFN J. 1lI1TTN�N <br />Archi[acc <br />CEGIL R. !PlNClR <br />A�cnrtacc <br />JAMlB M. RI1V <br />Cn�i Enp�nur <br />AN E60P COMPANY <br />ROBERT H. LEE S ASSOCIATES, INC. <br />ARCMITECTUpE • ENOINEERINO • ENVIpONMENTAL BERVICEB <br />'1'137 NORTH MeOOWELL BOULEVAR� � PETALUMA. CALIFORNIA 84854-'1489 �7a7� 765-'1680 <br />Meilinp Atldraee: P.O. Box 750908. Pecaluma, CA 94875-0808 Fox (707] 765-9900 <br />December 7, 1993 <br />Ms. Jane Zimmerman <br />City of Everett <br />Public Works <br />3200 Cedar St. <br />Everett, WA 98201 <br />RE: CHEVRON USA PRODUCTS COMPANY <br />6731 BEVERLY BLVD. <br />EVERETT, WA <br />SS N9-3954; RHL JOB /18120.10 <br />Plan Check #41786 <br />Dear Ms. Zimmerman: <br />Enclosed please find the second resubmittal for the above mentioned project. Both your <br />marked-up drawings of the Drainage Plan dated Nov. 10, 1993 and Nov. 12, 1993, two <br />sets of A-1 thru A-4 and sheet F-2, two sets of calculations sizing the oil/water separator <br />and copy �f the site plan showing the area contributing to the storm water run off have <br />been enc.osed for your review. The following is an itemized response to your comments <br />dated November 17, 1993 that reference the drawings of Robert H Lee & Associates, Inc.: <br />The underground storage tank overfill protection is being met by using two different <br />methods of overfill protection. The first method uses the CEI monitor system, which <br />monitors the level of tank with an audible alarm. The second method is a float <br />vent/vapor valve which slows the delivery of the product from the delivery truck when <br />the tank reaches 95% capacity of the tank. The sump which catches any potential spill <br />at the fill tube and vent/vapor riser drains back into the tank. See sheet F-2. <br />Oil/water separator has been designed for a rainfall intensity of 0.5 inches per hour. <br />See calculations. <br />The bvpass manhole can be found on sheet A-1, A-3, detaii D7 on sheet A-4 and the <br />oil/water calwlations. <br />A turning swcture has been located downstrea�n of both the bypass manhole and the <br />oil/water separator. See sheet A-1, A-3, detail G1 on sheet A-4 and the oil/water <br />calculations. <br />The inlet and outlet inverts appear ou sheet A-3 and detail A1 and D7 on sheet A-4. <br />Feel free to call me should you have any questions regarding the above comments. <br />Sincerely, <br />ROB'���ASSOCIATES, INC. <br />, <br />Robert Picard <br />Enclosures <br />� MAq16TTA, OI1 <br />�v.�s. <br />BACRIIMlNTO, CA <br />AELLEYIIE, Wq <br />Pd W P817f1.10�71(dMHR8.R1P <br />LA HAflRA. CA <br />