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R.B. WELTY & ,L%. CI <br /> ATES, wG STRUCTV, eL, ENGINEERS <br /> 521 13TH STREET, P. O BOX 1724 MODESTO, CALIFORNIA 95354 TELEPHONE (209) 526�151b <br /> BY O,L, DATE12-(a- dNAME CHK JOB N0f>91 }- SHEETOF -T <br /> GENERAL SPECIFICATIONS <br /> STEEL TANK : <br /> I. STEEL - TO CONFORM WITH ASTM <br /> DESIGNATION A36 <br /> THICKNESS OF SHEET METAL t 0.135" <br /> 2. WELDING - WELDING TO CONFORM TO U.L. 142 WELDING STANDARDS. <br /> 3. ANNULAR SPACE - 1/4" EXPANDED POLYSTYRENE . TOP, BOTTOM AND ALL SIDES <br /> OF STEEL TANK. <br /> 4. LINER - POLY - FLEX POLYETHYLENE - 30 MIL GEOMEMBRANES. <br /> TANK IS COMPLETELY CONTAINED. <br /> 5. EXTERIOR COATING OF STEEL TANK IS PAINTED WITH ONE COAT OF <br /> RELIABLE COATING - *877220 BROWN FAST DRY ALKYD,. <br /> CONCRETE ENCASEMENT : <br /> I. CONCRETE - PORTLAND CEMENT - fc' 3000 PSI AT 28 DAYS, <br /> 3 % AIR ENTRAINMENT. . <br /> i <br /> 2. WIRE MESH - 6x6 / 10 z 10, WRAPPED AROUND THE ENTIRE UNIT. <br /> 3. PERIMETER EPDXY SEAL - THE EXTERIOR OF THE CONCRETE VAULT IS <br /> PAINTED WITH A TWO PARTS EPDXY PORTER PAINTS. <br /> WATER BASE GLOSS EPDXY 9371A AND 93718. <br /> i <br />