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�.a.-, n ;r+ 1-:`y",yr':,"`+•a:�';t�;:"`sr-r .�'� <br /> �. .,,••.Y' %' r...:•�L-.,.�s. J.:.,:.!,.rajc...:.?w%` �..V•U`-,.J.:"s:.F Y-)�•`':`r Y F-.:u,nigiL':-'i' ?'9"-.•.?:.:}^:'�\= S'.i,r.,rc1."�,=_f,'...�� pC,.;sfi`r`:..'.L�i-'.:.7,^• .'.5.. 'ab,....:3�;':L••�•.i;:..r,,:.::r-�%,�..• <br /> .)x,...;...-.::. <br /> .. ...:..:.: <br /> .......................................................... <br /> Aloe MAY 0 7 <br /> 2003 <br /> ENGINEIRING , INc. T <br /> SHAPING SUCCESS WITH CLIENT-CENTERED SOLA4*q-H <br /> May 2, 2003 °,, c[30CES <br /> Mr. Chris Hansen <br /> Applied Aerospace Structures Corporation <br /> P.O. Box 6189 <br /> Stockton, CA 9206 <br /> Dear Chris: <br /> Subject: Berm Evaluation <br /> As requested, we performed a structural evaluation of the containment berm depicted on the <br /> sketches you submitted to our office. This concrete berm is 22 inches high and 6 inches thick <br /> with a number 4 vertical bar embedded to the existing slab at 36 inches on centers and two <br /> number 4 horizontal rebar, one near the top and one near the bottom of the wall. We <br /> evaluated this wall for a containment of fluid with a specific gravity of 1.2 standing at a level <br /> of 16 inches high against the wall. <br /> We have found this containment wall will satisfactorily retain the fluid loads described above. <br /> Though the wall is under-reinforced with vertical reinforcement, we determined the <br /> horizontal reinforcement is adequate to support this loading considering horizontal wall spans <br /> between wall corners. <br /> We trust this information will be helpful. If you should have any questions or need further <br /> information, please do not hesitate to give us a call. <br /> Q�pFESS/pN <br /> Very truly yours, Qti0 � -V <br /> ONY <br /> Siegfried Engineering, Inc. y 2�`Z' <br /> cmQ N m <br /> W NO. S-4550 "T' <br /> Exp. 12/31/05 <br /> thony J. op �csjUC.�Q'P�' � <br /> OF CAIS <br /> ROBERT W. SIEGFRIED Sig DATE: <br /> founder <br /> LEX A. CORRALES <br /> STEPHEN R.THUMLERT <br /> ANTHONY J. LOPES <br /> CIVIL ENGINEERING ► STRUCTURAL ENGINEERING - LAND SURVEYING - PLANNING <br /> y......................._.................... <br /> 4045 Coronado Avenue,Stockton, California 95204-2396 <br /> ' Tel (209) 943-2021 -Fax (209) 942-0214 -mail@siegfriedeng.com f:\03179\Ltr.doc <br />