COMPLIANCE INFO - Laserfiche WebLink

Home Browse Search

Spill Prevention, Control and Countermeasure Plan Tesla Treatment Facility Page 37 of 45 3.3.6 Tank Integrity Testing [40 CFR§112.8(c)(6)] The storage tanks at the Emergency Power Generation Facility are inspected in accordance with the latest Steel Tank Institute (STI) SP001, Standard for the Inspection of Aboveground Storage Tanks. Because the bulk storage tanks and day tanks are of dual-wall construction and engineered with Continuous Release Detection Methods (CRDMs), the tanks are classified as Category 1 tanks by criteria in the latest STI SP001 guidance. Based on the capacity of the tanks,the minimum inspection schedule for Category 1 tanks is as follows; refer to the latest STI SP001 guidance: 8,000-,gallon bulk storage tank ank(5,001 to 30,000-,gallon capacity AST type • Periodic (monthly and annually) inspection • Formal External Inspection (FEI) 150-gallon da, t�0 to 1100-,gallon capacity AST type • Periodic (monthly and annual) inspection According to the STI SP001 guidance, FEls for Category 1 tanks should be performed at the time tank installation, every twenty(20)years thereafter, and following material repairs. FEIs are to be performed by Certified Inspectors,as defined in the STI SP001 guidance. FEI's essentially consist of a formal review of tank installation and past inspection and maintenance records, and review of applicable AST industry and regulatory standards. FEIs include a visual inspection of the tank foundation and support;valves,gauges,sensors,alarms and appurtenance to confirm proper setting and operation; thickness and condition of the tank wall and secondary containment; and tank monitoring system to confirm proper setting and operation. The aboveground storage tanks and piping system were tested by the manufacturer in May 2011 and tested again following installation in July 2011 and in accordance with manufacturer recommendation. Periodic visual inspections by facility operators are performed monthly and annually as described in Section 2.9 this SPCC Plan. Tank integrity testing records are maintained in the Operations Building for a minimum of three (3) years. 3.3.7 Control Leakage from Internal Heating Coils [40 CFR§112.8(c)(7)] 40 CFR§112.8(c)(7) of the SPCC Rule is not applicable because there are no internal heating coils associated with storage vessels at the Tesla Treatment Facility. 3.3.8 Liquid Level and Leak Sensors [40 CFR§112.8(c)(8)] The storage tanks at Emergency Power Generation Facility are equipped with a Veeder Root system of liquid level gauges and high level alarms set at ninety percent (90%) of the rated capacity. Liquid level sensing devices are tested on an annual basis by a qualified contractor, following manufacturer recommendations. The SimplexTM Automated FuelPort generates an alarm whenever the fuel level in a tank reaches a predetermined full level. At this point the fill valve will automatically close. The valve can be reopened for 30 seconds by the override controls. Once a