Page 3 - dtsc0817

b en p rated at 15 ar a
f th it t remo
fr m ev n ar has b n ucce fully compl ted and ight area ar curr ntl •
ar compl t d in th curr nt areas, the a ailable syst ms will be mov d t the
quir C cl anu , -hich are currently under con truction. All op ration ha e
rith th uth a t Air Quall - anagement Di trict rule and permit .
Excav tion and ex situ bioremediation i being
u ed to clean oil from areas contaminated with
perchlorate. The contaminat d oil i dug-up, and taken
to to a oil treatment facility at the ite where water and
amendments are mixed with the il and then placed in 67
treatm nt cell . The cell ar covered to prevent ambient
air int raction and promote natural soil micro-organi ms
(bacteria) population growth and biological break down of
the perchlorat . Soil sample are often collected to
monitor and record the progres of biodegradation.
Typically, complete treatment i achieved within 20 to 30
da T during the warm r summer months and from 45 to
90 day during the cool r winter month . Upon
completion, the cl an oil in the cells is removed, pread
out to dry and then u ed to backfill the eJ cavation areas.
With recent addition of equipment and construction of an
, seem operatin additional treatment pad area and 57 more cell , the
e ca ation and bior mediation of the perchlorate-
impacted oil is expected to be c mpleted in 2018.
Due to the history of weapons and explosives handling
and testing at this site, Whittaker retained a specialty
contractor to survey the specific ite area where
' munitions and explo ives of concern" (MEq were
a sembled, stored, handled, or te ted. Item £ und during
urve f the subject areas wer temporarily tored in afe
storage chamber . Toes items wer "demilitarized" at the
ite and th crap metal and fragments f uch material
wer carefully inspected and rendered afe b fore hauling
t a metal recycling facility. Based on re ults of the MEC
survey , five landfill areas at the site were determined to
contain munitions fragment . plan for management of
th landfill ha been prepared and appr ved by DT C.
C n truction activitie related to management f the fill
areas is expected to begin in 2 17 and completed b mid-
2 18.