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711 Materials, Inc. <br /> ,` ALTA <br /> Spill Prevention, Control and Countermeasure Plan ENVIRONMENTAL <br /> recommendations to the EPA Regional Administrator as to further procedures, methods, <br /> equipment, and other requirements necessary to prevent and to contain discharges from the <br /> Facility. <br /> 6.6 Spill History <br /> There have been no spills of oil in harmful quantities at the Facility. In the event of a single <br /> discharge of greater than 1000 gallons, or two discharges within 12 months greater than 42 <br /> gallons each, then a report will be sent to the EPA Regional Administrator. This report will <br /> satisfy the requirements in 40 CFR 112.4(a)(1-9) and be sent within 60 days of the incident. <br /> 6.7 Spill Prediction <br /> Ref:40 CFR 112.7(b) <br /> Experience indicates a reasonable potential for equipment failure, such as loading or <br /> unloading equipment, tank overflow, rupture or leakage, other equipment known to be a <br /> source of a discharge. This section presents a prediction of the direction, rate of flow, and <br /> total quantity of oil that could be discharge from the Facility as a result of each type of major <br /> equipment failure. They are summarized in Table 2. <br /> All outdoor site drainage is to the concrete recycling unit or the on-site storm drains. The on- <br /> site storm drains flow through the Bay Saver® and into the City of Stockton storm water <br /> drainage system. Containment locations identified in the table are shown in site maps found <br /> in Appendix C. <br /> Table 2—Potential Spill Scenarios <br /> Max Method of <br /> Source Type of Failure Volume Rate(Gal/Hr) Direction of Flow Containment <br /> Released <br /> Aboveground Storage Tanks <br /> Primary Tank Failure Up to 12,000 Gradual to None Double-wall <br /> gallons Instantaneous <br /> Primary and Secondary 12,000 Gradual to South to Curb, <br /> Diesel Fuel Tank Failure gallons Instantaneous West to Storm Bay Saver® <br /> Tanks Drain <br /> Piping/Dispenser South to Curb, <br /> < 10 gallons < 10 West to Storm Spill Kits, Bay Saver® <br /> Failure Drain <br /> Motor Oil and Tank Failure 300 gallons Gradual to East toward center Service Pit <br /> Instantaneous of building <br /> Hydraulic Oil East toward center <br /> Tanks Piping/Hose Failure <5 gallons < 5 of building Spill Kits, Service Pit <br /> Tank Failure 300 gallons Gradual to None Secondary Containment <br /> Used Oil Instantaneous <br /> Tank Piping/Hose Failure <5 gallons <5 Inside shop: East Spill Kits, Service Pit, <br /> Outside shop: West Steam Cleaner Recycler <br /> Total Drum Failure 55 gallons Gradual to East toward center Service Pit <br /> Drums Instantaneous of building <br /> Piping/Hose failure < 5 gallons < 5 East toward center Spill Kits, Service Pit <br /> of building <br /> Transformer Tank Failure 390 gallons Gradual to South and east Concrete Recycling <br /> Instantaneous Unity, Bay Saver® <br /> Alta Environmental 16 <br /> BASR-19-8895 <br /> July 3, 2019 <br />