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Secondary Containment Assessment Page A: <br /> Overhead view: <br /> a <br /> 0 <br /> / dd <br /> TOSS sections (lateral)view: <br /> M <br /> Volume calculations: <br /> Tank volume(largest tank): 10,300 gallons. <br /> Containment volume(48' X 16' X 3')= 17,234 gallons(gross) <br /> Less tank volume=3384 gallons, containment volume= 13,850 gallons(net) <br /> Volume/inch= 13850 gal/36 in='3 85 gal/in <br /> Excess volume= 13850 - 10300 gals. equivalent to 3550 gal/385 gal/in =9.2 in <br /> 24 hr.,25 yr. storm=2.4 to 2.6"for most of San Joaquin Valley. <br /> Therefore, secondary containment volume is adequate. <br /> Design of containment area: Secondary containment is provided by a poured concrete <br /> wall with re-bar. The containment area does not have cracks or gaps to allow the escape <br /> of spilled material. <br /> Site Security: The entire site is fenced. The gate is locked when company personnel are <br /> not present. <br /> Secondary Containment findings: The secondary containment system is of sufficient <br /> capacity and condition for the containment of releases from the 10,300 gallon wastewater <br /> tank and ancillary equipment. Initials: W�; <br /> Superior Tank Wash Wastewater Storage Tanks <br />