Sunflower AAP - Installation Action Plan - GlobalSecurity.org

NORTH ACID AREA-CHROMATE
CONCENTRATION POND, SFAAP-008
SITE DESCRIPTION
The North Acid Area is located in the northcentral
portion of SFAAP. The Chromate Concentration
Pond is known to have been located
within the North Acid Area, but because the
pond has been drained, its location remains uncertain.
Reportedly, chromate was used as a
corrosion inhibitor in the fixation process at the
Nitrogen Fixation Plant. This plant was located
in the North Acid Area and was in operation
between 1953 and 1954. It has been reported
that when the plant was dismantled in 1958, the
pond and surrounding ground became contaminated.
In 1968, several cows died from drinking
water in this area (USATHAMA, 1980; PRC,
1990).
Chromate salts from the neutralization process
used to treat chromium sludge were reportedly
stored in drums located in the magazine area
(PRC, 1990). These salts proved non-hazardous,
and SFAAP received state approval to dispose
of the salts in an on-site landfill (SFAAP,
1992). The risk assessment found that the primary
risk drivers were hexavalent chromium in
surface water and PAHs in surface soil.
PROPOSED PLAN
Additional investigation and removal work at
this site will be performed under SFAAP-007.
Five years of LTM will be performed.
SUNFLOWER
ARMY
AMMUNITION
PLANT
INDICATES SITE LOCATION
N
IRP STATUS
RRSE RATING:
High
CONTAMINANTS:
Metals
MEDIA OF CONCERN:
Surface Water, Soil
COMPLETED IRP PHASE:
PA, RFA
CURRENT IRP PHASE:
RFI
FUTURE IRP PHASE:
LTM
CONSTRAINED COST TO COM PLETE
PHASE 2001 2002 2003 2004 2005 2006 2007+
RI/FS 50
IR A
RD
RA
RAO
LTM 21
PROJECTED TOTAL: $71,000
Sunflower AAP - Installation Action Plan
Site Descriptions - Page 18