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200906907
<br />Exhibit "B"
<br />Notification of Hazardous Substance Storage, Release, or Disposal
<br />Load Line ~
<br /> Name of Hazardous Date at'
<br />Property substance(s)
<br />stared (5), Storage,
<br />Release, .
<br />Remedial Actbns
<br />pescriptian Released (R), ar or
<br /> Dis ed D Die Deal
<br />Load Line 4 Explosive- ~ gr~~-45 There were no production operations nn the property outside the
<br /> contaminated waste, ~ ~~~~~ fenced boundary of Load Line 4.
<br />roximateiy and residues
<br />including:
<br />'1965-73
<br />R®mediation of explosives-aontaminated soil associated with
<br />219.985 acres of 2,4,6-trinitrotoluene load Line 4 has occarrred during muifiple remediation projects in
<br />land (2.4.6-TNT), 1987-BB, 1994, and 2U05-2007. All contaminated soil that was
<br /> cyclotetramethylene- determined to exceed industrial risk so€f remediatinn levels has
<br /> tetranitramine been removed from former Load Line 4.
<br /> (~~), '
<br /> hexahydra-1,3,5- In 1987-68, explasives~ontaminated snit was removed from the
<br /> trinitro-1,3,5-triazine lead lines, inanerated, and the resulting ash disposed in trenches
<br /> (RDX), at another location an GtiAAP as part of an (nstaltatron
<br /> 2,4dinitro~iuene Resforation Inclneratian Program (iRiP) on-site CERCLA
<br /> (2,4DNT), and 2,fi- removal action.
<br /> dinitrotnluene (2,B-
<br /> DNT) ddifional sail delineation and removal actions were conducted in
<br /> (S} (R) (D} the load lines in 1994 as part of a U.S. Army Carps of Engineers
<br /> (USAGE} interim soil removal action.
<br /> l~bsiveS
<br /> hreakdawrr products The 1998 Rea for DU4 determined that no contaminants
<br /> include: eacveeded ttre non-residential risk-based cleanup IeJels in surface
<br /> 1,3,5-trinitrabenzene soil at Load Line 4. The RDD atsa determined that nv additional
<br /> (1,3,5-TNB), 1,3- remedial acflon was required and that the selected remedy was
<br /> dinitrohenzene (1,3- deed restriccfion to prevent residential use of the property.
<br /> DN8), 2-amino~,fr
<br /> dinitrntoluene (2 Am- In 2005, geophysical survey and anomaly investigation, removal
<br /> 4,6-0NT), 4-amino- of industrial and sanitary sewers, testing of water supply lines,
<br /> 2,6-diniirotoluene and limited soil screening far explosives was conducted at Load
<br /> (4-Am-2,8-DNT), Line 4.
<br /> and nitrobenzene (R)
<br /> During tyre July 2005 through 2006 time frame, work was
<br /> performed to disassemble, decontaminate and demolish Load
<br /> Line 4 buildings; rer»ave concrete floor slabs; sample the sa11
<br /> under former concrete slab locations to confirm that the locations
<br /> did riot contain greater than 10% explosives; and to exoava#e and
<br /> remove sanitary and industrial sewer tines that were close to
<br /> building foundations, fallavved by Irmited soil screening far
<br /> explosives at the greater than 10°!° level beneath former sewer
<br /> locations.
<br /> 'The goal of at[ of the above--identified actions from 2005 to 2006
<br /> was to obtain 5X certificatron for the load fine areas in
<br /> ac~rdance with U.S. Army Pamphlet IOCP 365-1 Ctass~cation
<br /> and Remediadnn of Explosive Contamination. The 5X
<br /> designation indicates that no significant amounts (defined as not
<br /> enough to present an explosive safety hazard) of contamination
<br /> remain. At the 5X level, the property does not pose an explosive
<br /> safety hazard and is considered safe for sale to the general
<br /> public.
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