Sunflower AAP - Installation Action Plan - GlobalSecurity.org
Sunflower AAP - Installation Action Plan - GlobalSecurity.org
Sunflower AAP - Installation Action Plan - GlobalSecurity.org
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NORTH ACID AREA WASTEWATER<br />
TREATMENT LAGOON, SF<strong>AAP</strong>-009<br />
SITE DESCRIPTION<br />
The North Acid Area is located in the northcentral<br />
portion of SF<strong>AAP</strong>. The past operations<br />
conducted in the North Acid Area were similar<br />
to those performed in the South Acid Area.<br />
Thus, although wastewater treatment practices<br />
for the North Acid Area were not documented, it<br />
is believed the processes practiced were similar<br />
to the traditional wastewater treatment operations<br />
recently practiced in the South Acid Area.<br />
This treatment involved lime addition to the<br />
wastewater followed by discharge to a holding<br />
pond or lagoon.<br />
The South Acid Area produced calcium sulfate<br />
sludges. Similar sludges were believed to have<br />
been produced in the North Acid Area; however,<br />
their fate was not documented. In addition,<br />
there is a possibility that chromate-contaminated<br />
water may have been released as waste to this<br />
lagoon. The risk assessment found that primary<br />
risk drivers were hexavalent chromium in surface<br />
water and PAHs in surface soil.<br />
SUNFLOWER<br />
ARMY<br />
AMMUNITION<br />
PLANT<br />
INDICATES SITE LOCATION<br />
N<br />
PROPOSED PLAN<br />
Additional investigation and removal work at this<br />
site will be performed under S<strong>AAP</strong>-007. Five<br />
years of LTM will be performed<br />
IRP STATUS<br />
CONSTRAINED COST TO COM PLETE<br />
RRSE RATING:<br />
High<br />
CONTAMINANTS:<br />
Metals<br />
MEDIA OF CONCERN:<br />
Soil and Surface Water<br />
COMPLETED IRP PHASE:<br />
PA, RFA<br />
CURRENT IRP PHASE:<br />
RFI<br />
FUTURE IRP PHASE:<br />
LTM<br />
PHASE 2001 2002 2003 2004 2005 2006 2007+<br />
RI/FS 50<br />
IR A<br />
RD<br />
RA<br />
RAO<br />
LTM 21<br />
PROJECTED TOTAL: $71,000<br />
<strong>Sunflower</strong> <strong>AAP</strong> - <strong>Installation</strong> <strong>Action</strong> <strong>Plan</strong><br />
Site Descriptions - Page 19