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06/12/2006 09:46 6613257063 DIMAG PAGE 02 <br />ianuaty 31., 2005 <br />John W Johnson <br />Co -President DIMAGGTO MAINTENANCE <br />Architect P -Q. Box 22407 <br />Bakersfield, CA 93390 <br />Brian F Zit,;, <br />C.o-Presidenc RE: STATE REGiSTERD PROFESSIONAL ENGINEER APPROVAL <br />Mchicect CCR Title 23 Division 3, Chapter 16, Section 263(b) Secondary Containment <br />CCR Title 23 Division 3, Chapter 16, Section 2637 <br />John B. HtcliS Di.MAGGIO MAINTENANCE FTRE.RGX,ASS DOTJRL,E 'WALL UNDER <br />Vice President DISPENSER CONTAINMENT <br />(MADE IN VARR.IOLTS DISPENSER SITES) <br />Regional Managers T .have examined and reviewed the following items on tlhc DIMAGGIO MAMTL'NANCE Double <br />Jesti=e F,_ Macias Wall Under -Dispenser Containment: <br />Roy W. Pedm 1. Assembled double wall under -dispenser containment (T,JDC) complete with fiberglass adapter <br />Alan K. Shimahul<am and vacuum gauge installed_ <br />John W. Strobel 2, Drawing ACi WXX.'CX D/W Dispenser 13ox with Frame <br />3. Drawing DM4022 Double Wall Outside Dispenser (Outer wall) <br />4. Drawing DM4022I Double Wall Inside Dispenser (Inner wall) <br />5. Drawing DWA4822 Fiberglass Adapter <br />6. Drawing UCDWXXXX Installation :[nstructions For Double Wall Dispenser Boxcs <br />7. Fiberglass resin used must. be UT approved for petroleum products_ <br />S, A UL approved dispenser-mounti.n.g frame must be used with this installation_ <br />9. Approved double wall penetrationfittings that are monitored with the interstitial space of the box <br />must be use with this installation. <br />Upon review ofthc materials it is my opinion and conclusion that sound engineering design and <br />engineering of this product provide an in-place system that will provide secondary containment and <br />allow continuous vacuum or hydrostatic monitoring oaf tlic containment interstitial space including <br />the penetration fittings <br />� //, /Ir <br />James H. Ray <br />Sr. Civil Fnginccr. <br />0frices <br />ANAHr•.rta, CA tt <br />ko. ?+1.51g <br />P ELLEVUF, WA <br />GRIL <br />CAMAS, WA.� <br />MAK'r'iN.CZ, CA <br />PETALUMA, CA <br />RC)$F.V1f..Lr%, CA <br />SCOTTSDALE, AZ C:�c tatL�arJf°.�u'1'1'1f.�iMngg�o+tJnCnutos.d,w <br />www rhldesigu.coin <br />