2008 First Quarter
Soils RI Addendum submitted to DTSC
Groundwater sampling conducted

2007 Fourth Quarter
Additional soils investigation conducted in the mineral lease areas of Site (Soils RI Addendum)
Groundwater sampling conducted per the DTSC-approved Interim Groundwater Monitoring Program Workplan

2007 Third Quarter
Draft RAP submitted to DTSC
Revised Feasibility Study approved by DTSC
Groundwater Remedial Investigation Report accepted by DTSC
Groundwater sampling conducted

2007 Second Quarter
Revised Second Feasibility Study submitted to DTSC
Revised Groundwater Remedial Investigation Report submitted to DTSC
Interim Groundwater Monitoring Program Workplan submitted to DTSC and approved by DTSC

2007 First Quarter
Soils Remedial Investigation conducted in mineral lease areas of Site
Supplemental Soils Remedial Investigation Workplan for mineral lease areas of Site submitted to DTSC
Groundwater Monitoring Report submitted to DTSC

2006 Fourth Quarter
Magnolia Street fence replaced. Site interior drainage, weed abatement and general site housekeeping work conducted

March and July 2006
Emergency Action Completion Report and Addendum accepted by DTSC
Emergency Action Completion Report and Addendum submitted to DTSC

January 2006
Completed Emergency Action at Ascon Landfill Site

November 2005
Second Feasibility Study (aka Revised Feasibility Study) submitted to DTSC

July 2005 – January 2006
Emergency Action fieldwork conducted at Site

March 2005
Groundwater Remedial Investigation Report submitted to DTSC