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Ser or ry Contuament A sessrnent Page A: <br />Overhead Tv iew: <br />Cry sectionall (Weral) view, <br />Vohune calculatiow;.- <br />Tank volume (largest tank.): 7,400 gallons, <br />Ccsutainment volume (sum of areas 1, 2 & 3) = 14,363 gallons (gross) <br />Less tar& volume = 376 gallons, containment volume = 13,937 gallons (net) <br />Volurnelinch -13987 gal/24 in - 582.8 gal/in <br />Excess volume ; 13987 - 7400 gals. equivalent to 6587 gal / 582.8 gal/in = 11.3 in <br />24 hr., 25 yr. storm = 2.4 to 2.6" for most of San Joaquin Valley_ <br />Therefore, secondary containment vottanc is adequate. <br />Design of containment area: Secondary containment is provided by a number of area.-, enclosed by poured <br />concrete, or concrete block walls with m -bar, The containment area does not have cracks or gaps to aliow the <br />escape of spilled Menial. Arca 1 (last end) is connected to area 2 by an open 6 in. pipe, and area 2 is <br />connected to area 3 Gest end) by a 6 in- pipe. Thee pipes will accommodate flow of 300 to 500 gpm <br />depending upon the head. Area 1 is equippod with a level indicator for leak detection, which will sound an <br />alarm whea. liquid is detected. Liquid is recycled using an AODD pump. <br />Areas 1, 2 & 3 are: coated with epox}= which is re-applied annually. <br />Secondary Containment Leak Testas - The pre -neutralizer area (Areas 1, 2 & 3), and the final neutralizer area, <br />are Mod with water (area 3 partially filled, area 1- removpe pumps before filling), and visually checked for <br />leaks. Upon completion, the ver is treated ut the systemlmW discharged to the sewer_ Testing will be initiated <br />this year or early next and rested every five years. Appropriate records will be maintained. <br />Site Security: The entire site is tcawcod. The gate is locked when company personnel are not present. <br />Semredaay Ooatainmest fmdings: The scconda,ry containinent system is of sufficient capacity and condition <br />for the coRta MocW of nelcases from the 7.400 gallon wastewater tank and ancillary equipment. <br />Initials: k,✓ <br />Califorma Tank Lines, I=. Wastewater Processing 'Tanks (3 ) <br />