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Spill Prevention, Control, and Countermeasures Plan March 2008 <br />Stockton Army Aviation Support Facility <br />Stockton, CA <br />ID <br />Type <br />Primary <br />Container <br />Secondary Containment <br />Capacity <br />Contents <br />Classification <br />(gallons) <br />M-7 <br />Fuel truck <br />JP -8 fuel <br />Mobile refueler <br />Drive -on secondary <br />2,500 <br />containment pad <br />M-8 <br />Fuel truck <br />JP -8 fuel <br />Mobile refueler <br />Drive -on secondary <br />2,500 <br />containment pad <br />M-9 <br />Tank container <br />MOGAS <br />Mobile refueler <br />External secondary <br />100 <br />mounted on trailer <br />containment structure <br />D-1 <br />Hazardous Waste <br />Used oil <br />Container <br />Storage shed has integral <br />165 (three 55 - <br />Accumulation Shed <br />Waste Fuel <br />Storage <br />secondary containment. <br />gallon drums) <br />(JP -8) <br />Waste <br />Grease <br />G -I <br />Emergency Power <br />Diesel <br />Container <br />Double wall <br />660 <br />Backup Generator <br />Storage <br />Total Maximum Oil Storage Capacity (gallons) <br />45,925 <br />3.2 OIL SPILL CONTINGENCY PLAN AND MANPOWER— 112.7(D) <br />Section 4.0 provides a Response Plan to a spill or release that may occur at the Stockton AASF. The <br />installation has personnel dedicated to respond to a spill or release. <br />3.3 DESIGN AND OPERATING PRACTICE TO PREVENT SPILLS — 112.7(E) <br />3.3.1 Stockton AASF Drainage—112.7(e)(1)(i) through (v) <br />The facility is relatively flat and graded with no significant natural topographic features. Stockton AASF <br />drainage is shown on Map 2 in Appendix D. Drainage enters into the storm drain system through inlets on <br />and around the Stockton AASF. Drainage is funneled to storm drains that discharge offsite to Stockton <br />storm sewers or eventually to the San Joaquin River drainage basin. <br />3.3.2 Bulk Storage Tanks—112.7(e)(2) and Hazardous Waste Containers <br />The Stockton AASF uses one 20,000 -gallon AST that holds JP -8 fuel. There is also a permitted 15,000 - <br />gallon UST not subject to SPCC requirements. <br />The interstitial space between the outer and inner wall of the shop -fabricated 20,000 -gallon AST has an <br />annular sensor that is tested quarterly. This tank is filled from the UST that is contained in a monitored <br />sump beneath the fueling pad. Piping from the UST to the AST is contained within the sump and is <br />continuously monitored by electronic detection system for leaks. The monitoring system has audible and <br />visible alarms at the tank site. The AST has an automatic shut off of the UST pump when the tank is 90% <br />filled. Leaks from the tank will be contained within the secondary wall of the tank or the sump system. <br />T N & Associates, Inc. 10 <br />HDR <br />