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�L � L <br />MAY , 6 2017 <br />EwVIRIO iVA,L HEALTH <br />CIEINT <br />Chevron <br />Control — Drainage <br />■ Restrain drainage from diked storage areas by use of manually operated valves, <br />that are maintained normally closed and locked. <br />■ Discharge uncontaminated drainage from diked storage areas by use of manually <br />operated pumps, under responsible supervision. <br />■ Discharge collected storm water in diked areas following visual inspection for <br />sheen. <br />— Terminal operating procedure: T-12 "Discharging Storm Water" <br />— Storm water discharge logs <br />■ Undiked areas with a potential for a discharge (e.g. product transfer piping <br />outside of dike walls) must have drainage controls designed to retain a spill in a <br />pond, lagoon, or catchment basins, or return the discharge to the facility. <br />— "Environmental Equivalent" controls may be also used, with P.E. approval. <br />O 2014 Chevron 12 <br />