3003 W CASINO RD 1992 BLDG 40-41 2018-01-01 MF Import

� " � rS �q�e� I� riy,� trP� hn�eG -��-� 1`� !�^ ��b'Os„�!r ON ^�£onc�Z ,�,,r� �,(.� � T� n �E�/ //E -r �if =, ,r• L Ar� E"N�,�,�ft cncc �n � n �� . Iv�c ` �'� r�� T N �� c) ''1 � � �,�7 I� � MEMORANDUM TO: Kirk Brooks FF.OM: Jane Zimmerman DATE: September 18, 1992 SUBJECT: Eoeinq 40-41 Site Work and Utilities, Plan Review I have the following comments on the revised set of plans. Most of these comments are reiterations of comments made on Auqust 13 which have not been answered at this time. Information provided in the field byiBlsifromnhydraulichat the test slab could be subject to 6P revious set of plans lines ruptured during testing. The p included provisions for discharqing spills to the sanitary sewer. On the current set of plans, this option no lonqer exists. Spilled materials, and the water used to clean up spills, are not acceptable for discharge to the arator. system, even after treatment by an oil/water sep These flows must either be discharged T°routedatotarsumpwer, with appropriate approvals from IPT. type system where the accumulatedislprovidedbeftemustdbend disposed of properly. If a sump material ashwellcastthe volumelofewaternnecessary tolwash off the slab. The method of diverting spills to a system separate from the storm system is still a concern. If the runoff is not expected to be contamibetfeasiblesasnafinechanismeto allowl� an oil stop valve may area or to the sanitary bypassinq of any spills to a sump o Brated valve. If a sewer without the need for a maneratin p rocedures and manual valve is provided, the op 9 P desiqn of the uate timeito operateetheavalve beforeiaespill operators adeq stem. reaches the stormwater sy The questions asked in the August 13 memo regardinq the testing slab cleanup and operating procedures must be answered by Boeing to give the City enough information to review this proposal adequately.