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John W. Johnson <br />Co -President <br />Architect <br />Brian F. Zita. <br />Co -President <br />Architect <br />John B. Hicks <br />Vice President <br />Cecil R. Spencer <br />Kee President <br />Regional Managers <br />Jesse E. Macias <br />Roy W. Pedro <br />Alan K. Shimabukuro <br />John W. Strobel <br />Blythe R. Wilson <br />Offices <br />BELLEVUE, WA <br />LA HAsRA, CA <br />MARTINEZ, CA <br />PETALUMA, CA <br />SACRAMENTO, CA <br />SCOTTSDALE, AZ <br />VANCOUVER, WA <br />www.rhldesign.com <br />11 <br />A R C 11 1 T E C T U R E E N G I N E E R I N U <br />1137,V. WcDoweil Blvd.. Pelaluma, CA 94954 <br />March 14, 2003 <br />John Rowe <br />Diversified Products Mfg. LLC <br />5523 Bagget-Marys-ville Road <br />Oroville, CA 95965 <br />2 <br />ENVIRQN',\4 EN TAL SERVICES <br />Tetephone: (707) 1765-1660 Facsimile: (707) 765-9908 <br />RE: THIRD PARTY APPROVAL <br />CCR Title 23 Division 3, Chapter 16 Section 263 1 (d) <br />SPLIT REPAIR PRODUCTS <br />Split Repair Boots RB 4, RB 8, RB 10 RB 12 RB 14 <br />Split Terminating and Test Reducers <br />Spit Inserts <br />Repair Boot Installation Kit R 31 <br />Bulkhead Bonder DBB <br />Bulkhead Cleaner DBC <br />Bulkhead Fill DBF <br />Zip Tite DGK <br />I have reviewed the following materials on these products: <br />I . Material specifications, test reports and data sheets. <br />2. Manufacture's Installation Instructions. <br />3. Manufacture's Application Bulletins <br />4. Representative samples of items. <br />5. Manufacture's Master Catalog <br />In my opinion the design of these products as shown in the manufacture's materials are based on <br />sound engineering principles and the materials are compatible with all motor fuels and additives <br />currently being used. <br />RHL DESIGN GROUP, INC. "FESS'f4l <br />ts ti, <br />jjj <br />James H. Ray No. 24,518 <br />Senior Civil Engineer �p )! 3&!� <br />