LUBRICATING AND HYDRAULIC OILS ARE STORED AND BLENDED BY A TENANT ON THE FIRST FLOOR OF THE FACILITY. OIL FROM THESE OPERATIONS DRIPS THROUGH THE WOODEN FLOOR INTO THE BASEMENT, MIXING WITH TEH GROUNDWATER AND STORMWATER THAT HAS COLLECTED IN THE BASEMENT. THE GROUNDWATER AND STORM WATER FLOWS INTO THE GROUNDWATER TREATMENT SYSTEM BEFORE BEING DISCHARGED TO THE CITY OF EVERETT'S MUNICIPAL SEPARATE STORM SEWER. THE DISCHARGE OF STORM WATER AND OIL FROM CURRENT STORAGE AND BLENDING OPERATIONS IS NOT AUTHORIZED UNDER THE REMEDIATION GENERAL PERMIT AND REQUIRES COVERAGE UNDER A SEPARATE NPDES PERMIT. THE REMEDIATION GENERAL PERMIT ONLY AUTHORIZES DISCHARGES FROM SITE REMEDIATION ACTIVITIES FROM HISTORICAL CONTAMINATION.