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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

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