Laserfiche WebLink
( <br />14.0 Facility Drainage-40 CFR 112.8(b) and 112.8(c)(3) <br />14.1 General Facility Drainage <br />The KRC TRACY PLANT is situated on six acres south of the town of Tracy, CA (Figure 1, <br />LOCATION MAP). The site is graded with a very gradual slope to the north east. Concrete <br />paved areas occupy about 15 % of the area including a small lined washout detention basin <br />under the plant conveyor belt with the balance covered in graded and compacted aggregate <br />road base, Sand and aggregate stockpiles are in the central and western perimeter portions of <br />the site. The regional slope is eastward towards the San Joaquin River. <br />Storm flow and presumed worst case scenario with release when surrounding soil is saturated <br />from precipitation would be expected to be intercepted by the facility adjacent storm water <br />basin. Excess flow is directed to the outfall at the entrance gate. Any discharge of storm water <br />would be performed in accordance with the requirements of the General Industrial Storm Water <br />Permit. <br />All storm drain drop inlets or drainage ditches in close proximity to the fuel AST flow to the <br />surface containment (detention pond at the north corner of the site where a boom structure <br />collects incidental floating oil products). <br />14.2 Drainage from Containment Areas <br />Condensate that accumulates in the interstitial area of each tank is manually drained only if the <br />water is first visually inspected to ensure that it is does not possess a visible sheen. If a visible <br />sheen is observed, either the water will be transferred into drums and profiled for appropriate <br />disposal or sorbent material will be used to remove the oily sheen prior to discharge of the <br />water. Interstitial volume openings to the atmosphere should be normally closed. Collected <br />water in the interstitial area of either tank is considered to be out of the norm and should be <br />immediately investigated for its source. <br />The person conducting the drainage will document the event on the inspection log sheet <br />(Appendix B). The log sheet will document the estimated volume removed, the time and date of <br />the drainage, any observations regarding the presence and removal of an oil sheen, and the <br />initials or signature of the person conducting the drainage. The drainage outlet will be resealed <br />following release of accumulated water. The log sheet is maintained onsite in the KRC TRACY <br />PLANT OFFICE. <br />15