Slide 1: Tallevast Community Meeting
Tallevast Community Meeting August 14, 2008 Brad Owens, Lockheed Martin Director of Remediation Paul Calligan, Lockheed Martin Project Manager Treatment system malfunction • What happened? • Community members observed water flowing from the secondary containment structure at the 1600 Tallevast Road
Slide 2: Where are we now?
Where are we now? • A broken hose released untreated water into the secondary containment system • A faulty leak sensor allowed the secondary containment system to overflow • The community’ community’s consultant, ENVIRON, completed air sampling and found no detection of site contaminants • Lockheed
Slide 3: What we've done / Next Steps
What we’ve done • Convened a panel of technical experts to determine the cause of the problem • Identified necessary repairs and sent the damaged portion of the hose to a laboratory for analysis • Initiated corrective actions • Additional backup systems identified 5 Next Steps • Repair system and im
Slide 4: Community Safety Plan and Air monitoring program
Community Safety Plan What is the Community Safety Plan? • The Tallevast Community Safety Plan (CSP) details the procedures and actions that will be taken in the event of an emergency or an unplanned event that could impact the neighbors around the former Loral American Beryllium Company Who prepare
Slide 5: Reduction of vehicle emissions / Remedial Action Plan (RAP)
Reduction of vehicle emissions • All construction equipment used on- on-site will be properly maintained – Where possible, trucks used for hauling materials to and from the site will use low- low-sulfur diesel fuels – Low- Low-sulfur diesel fuel will also be used in on- on-site diesel powered equipm
Slide 6: What has already been accomplished?
What has already been accomplished? • 2006 installation of the interim groundwater treatment system • Nearly 6 million gallons pumped and treated as of April 30, 2008 • Closure of 49 wells as part of the Lockheed Martin incentive program • $10,000 per well • Excavation of on- on-site soil in the pas
Slide 7: Extraction well and extraction trench locations
i ¥ H 6 4 SARASOTA-BRADENTON AIRPORT EXTRACTION WELL AND. EXTRACTION TRENCH LOCATIONS FAARCADIS | a4 SEMINOLE GULF RALWAY.
Slide 8: Predicted concentration of TCE in the USAS at 0, 5, 10, and 20 years
PREDICTED CONCENTRATION OF TCE IN THE USAS AT 0, 5, 10, AND 20 YEARS UNDER RECOMMENDED REMEDIAL ALTERNATIVE TIME = 0 YEARS TIME = 5 YEARS % Initial Mass Remaining On Facility & Golf Course = 21.9 % USAS Off Facility = 18.7 % TIME = 10 YEARS TIME = 20 YEARS % Initial Mass Remaining % Initial Mass Rem
Slide 9: Predicted concentration of 1,4 dioxane in the USAS at 0, 5, 10, and 20 years
PREDICTED CONCENTRATION OF 1,4 DIOXANE IN THE USAS AT 0, 5, 10, AND 20 YEARS UNDER RECOMMENDED REMEDIAL ALTERNATIVE TIME = 0 YEARS TIME = 5 YEARS % Initial Mass Remaining On Facility & Golf Course = 3.8 % USAS Off Facility = 16.7 % TIME = 10 YEARS TIME = 20 YEARS % Initial Mass Remaining % Initial M
Slide 10: The solution will be effective / Next steps
The solution will be effective • The mass of the contamination will be reduced by approximately 80 percent within the first five years • The excavation of soil contamination at the source will accelerate the cleanup • The solution is designed to “pull” the groundwater plume back into the site Next s
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