CN-370000-GC655-T38C.pdf

This document is a Task Assignment Notification and accompanying Performance-Based Cleanup Terms and Conditions issued by the Florida Department of Environmental Protection (FDEP), Division of Waste Management, Bureau of Petroleum Storage Systems. The contract involves AEROSTAR Environmental Services, Inc. as the contractor, with the Marion County School Board as the facility owner. The site is Marion County School Board-Middle School located at 21005 Chestnut Street, Dunnellon, Marion County, Florida (FDEP Facility ID: 42/8518837). Task Assignment GC655-038C establishes a petroleum storage system cleanup scope of work with a discharge date of November 26, 1990, and execution date of September 14, 2009.

The contract is structured as a Performance-Based Cleanup (PBC) with a total fixed price of $6,300.00 for initial funding, establishing a limited scope remedial action involving post-active remediation monitoring. The cleanup addresses groundwater contamination at 50% of Natural Attenuation Default Concentrations (NADCs), with target contaminants including BTEX (benzene, toluene, ethylbenzene, xylenes) and total recoverable petroleum hydrocarbons (TRPH). Key milestones include: LSRAP submission (5%, $6,300.00, due December 1, 2009); RA Startup Report (35%, $44,100.00, due June 1, 2010); 50% Reduction (20%, $25,200.00, due December 1, 2010); Target Levels achievement (20%, $25,200.00, due June 2, 2011); and Maintain Target Levels (20%, $25,200.00, due June 1, 2012). The agreement extends through June 1, 2013, with monitoring conducted at Key Well MW-10 and Perimeter Wells (MW-1, MW-2R, MW-5, MW-7R) on quarterly and semi-annual frequencies as specified in the cleanup terms.