Kaiser Trentwood

SITE BACKGROUND

The U.S. Government Defense Plant Corporation created the Trentwood facility in 1942 to produce aluminum for World War II aircraft. In 1946 Kaiser leased the facility and later purchased it along with the property. Trentwood currently produces aluminum sheet, plate, and coil for aerospace and general engineering applications.

Materials used in past aluminum production included PCB oil, petroleum fuels, solvents, and chromium. Wastes generated as a result of past or present operations consist of wastewaters, chrome sludge, paint and solvent wastes, and black dross.

The West Discharge Ravine where current cleanup is proposed was used as a wastewater conveyance from 1942 until about 1973 when wastewater treatment facilities were upgraded. Cleanup in this area focuses on PCBs and petroleum in soil.

SITE DOCUMENTS

Fact Sheet - May 24, 2007
Draft West Discharge Ravine Interim Action Work Plan
Table of Contents
Introduction (text)
Figure 1-1 Project Vicinity Map
Figure 1-2 West Discharge Ravine Existing Conditions Map
Interim Action Work Plan
Applicable, Relevant and Appropriate Requirements
Tables:
Table 2-1 Surface Soil Sample Data
Table 2-2 Analytical Results for Soil Samples
Table 2-3 Grain Size Distribution
Table 2-4 Particle Size Distribution
Table 2-5 Summary of Alternatives
Figures:
Figure 1-1 Project Vicinity Map
Figure 1-2 West Discharge Ravine
Figure 2-1 Phase I Remedial Investigation
Figure 2-2 Temporary Erosion
Figure 2-3 WDR Excavation Plan
Figure 2-4 Soil Transportation Plan
Figure 2-5 WDR Backfill and Grading Plan
Figure 2-6 Excavation and Grading Typical Sections
Figure 2-7 Soil Screening
Figure 2-8 Details
Appendix A: Sampling and Analysis Plan
A-1 Pre-Interim Action Exportation
A-2 Verification Sampling Location
Attachment A-1 Quality Assurance Plan
Table A-1-1 PCB Analytes, Criteria
Table A-1-2 Petroleum Hydrocarbon Analytes
Table A-1-3 Sample Containers, Preservation and Holding Times
Table A-1-4 Summary
Appendix B: Health and Safety Plan Introduction
Hazard Evaluation and Control Measures
Protective Equipment
Safety Equipment
Exclusion Areas
Minimization of Contamination
Decontamination
Disposal of Contaminated Material
Site Security and Control
Spill Containment
Emergency Response Plan
Medical Surveillance
Training Requirements
Reporting, Reports, and Documentation
Substantive Permit Requirements
SEPA Environmental Checklist
Attachment 1
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
SEPA Determination of Non-Significance
Responsiveness Summary: Kaiser Trentwood Site - Agreed Order for a Remedial Investigation/Feasibility Study August 2005
Fact Sheet - June 27, 2005
Agreed Order for a Remedial Investigation/Feasibility Study
Table of Contents
Agreed Order (1411 kb)
Exhibit A
Exhibit B - Pages B1-B11 (910 kb)
               Pages B17-B24
               Table I
               Appendix A
Exhibit C - Public Participation Plan (1116 kb)
               Appendix A
               Appendix B
               Appendix C (1588 kb)
               Appendix D

Related Information

Watershed Information for WRIA 57

Additional Resources

SITE INFORMATION

Facility Site ID: # 53481373

Location:
Spokane, Spokane County

Contacts:
Teresita Bala Site Manager
509/329-3543

Carol Bergin Public Involvement Coordinator
509/329-3546

Status: Remedial Action In Progress