Final Second Five-Year Review Report Fort Ord Superfund Site ...

6.0 OU 2 ROD – FORT ORD LANDFILLS .....................................................................................6-1
6.1 OU 2 Background...............................................................................................................6-1
6.2 Remedial Actions................................................................................................................6-1
6.2.1 Remedy Selection ..................................................................................................6-1
6.2.2 Remedy Implementation ......................................................................................6-2
6.2.3 System Operations and Maintenance..................................................................6-3
6.2.4 Progress Since the Last Five-Year Review .........................................................6-4
6.3 Technical Assessment.........................................................................................................6-5
6.3.1 Question A .............................................................................................................6-5
6.3.2 Question B..............................................................................................................6-5
6.3.3 Question C .............................................................................................................6-6
6.4 Issues ...................................................................................................................................6-6
6.5 Recommendations and Follow-Up Actions ......................................................................6-7
6.6 Protectiveness Statement ...................................................................................................6-7
7.0 BASEWIDE REMEDIAL INVESTIGATION SITES ROD ....................................................7-1
7.1 Sites 2/12..............................................................................................................................7-1
7.1.1 Background............................................................................................................7-1
7.1.1.1 Site 2 – Main Garrison Sewage Treatment Plant (MGSTP)..............7-1
7.1.1.2 Site 12 ......................................................................................................7-1
7.1.2 Remedial Actions...................................................................................................7-2
7.1.2.1 Remedy Selection ...................................................................................7-3
7.1.2.2 Remedy Implementation .......................................................................7-4
7.1.2.3 System Operations and Maintenance...................................................7-4
7.1.2.4 Progress Since the last Five-Year Review............................................7-4
7.1.3 Technical Assessment............................................................................................7-5
7.1.3.1 Question A ..............................................................................................7-5
7.1.3.2 Question B ..............................................................................................7-6
7.1.3.3 Question C ..............................................................................................7-6
7.1.4 Issues ......................................................................................................................7-6
7.1.5 Recommendations and Follow-Up Actions.........................................................7-6
7.1.6 Protectiveness Statement ......................................................................................7-6
7.2 Sites 16 and 17 ....................................................................................................................7-7
7.2.1 Site Summary ........................................................................................................7-7
7.3 Site 31 ..................................................................................................................................7-7
7.3.1 Background............................................................................................................7-7
7.3.2 Remedial Actions...................................................................................................7-7
7.3.2.1 Remedy Selection ...................................................................................7-8
7.3.2.2 Remedy Implementation .......................................................................7-8
7.3.2.3 System Operations and Maintenance...................................................7-8
7.3.2.4 Progress Since the last Five-Year Review............................................7-8
7.3.3 Technical Assessment............................................................................................7-8
7.3.3.1 Question A ..............................................................................................7-8
7.3.3.2 Question B ..............................................................................................7-9
7.3.3.3 Question C ..............................................................................................7-9
7.3.4 Issues ......................................................................................................................7-9
7.3.5 Recommendations and Follow-Up Actions.........................................................7-9
7.3.6 Protectiveness Statement ......................................................................................7-9
7.4 Site 39 (Includes Sites 5 and 9)..........................................................................................7-9
7.4.1 Background............................................................................................................7-9
7.4.2 Remedial Actions.................................................................................................7-10
Final
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FORMER FT ORD 5YR REVIEW 2007_FINAL United States Department of the Army