Headquarters Landfill Documents

Current Application Version

The current application for the Cowlitz County Headquarters Landfill solid waste permit is available below. To enhance download speed, the document has been optimized and divided into multiple sections. Original, unaltered digital copies are also available upon request.

The application consists of six volumes: four volumes of engineering documents, one operations plan, and one hydrogeology report. For easier downloading, each volume has been further subdivided.

The Operations Plan

Operations Plan Part 1
Operations Plan Part 2
Operations Plan Part 3
Operations Plan Part 4  
Operations Plan Part 5

The Hydrogeology Report

Hydrogeology Report Part 1
Hydrogeology Report Part 2
Hydrogeology Report Part 3
Hydrogeology Report Part 4
Hydrogeology Report Part 5
Hydrogeology Report Part 6
Hydrogeology Report Part 7
Hydrogeology Report Part 8
Hydrogeology Report Part 9
Hydrogeology Report Part 10
Hydrogeology Report Part 11
Hydrogeology Report Part 12
Hydrogeology Report Part 13
Hydrogeology Report Part 14
Hydrogeology Report Part 15
Hydrogeology Report Part 16
Hydrogeology Report Part 17
Hydrogeology Report Part 18

The Engineering Report Volume I:

The Engineering Report Vol. I, Pt. 1
The Engineering Report Vol. I, Pt. 2
The Engineering Report Vol. I, Pt. 3
The Engineering Report Vol. I, Pt. 4
The Engineering Report Vol. I, Pt. 5
The Engineering Report Vol. I, Pt. 6
The Engineering Report Vol. I, Pt. 7

The Engineering Report Volume II:

The Engineering Report Vol. II, Pt. 1
The Engineering Report Vol. II, Pt. 2
The Engineering Report Vol. II, Pt. 3
The Engineering Report Vol. II, Pt. 4
The Engineering Report Vol. II, Pt. 5
The Engineering Report Vol. II, Pt. 6
The Engineering Report Vol. II, Pt. 7

The Engineering Report Volume III:

The Engineering Report Vol. III, Pt. 1
The Engineering Report Vol. III, Pt. 2
The Engineering Report Vol. III, Pt. 3


The Engineering Report Volume IV:

The Engineering Report Vol. IV, Pt. 1
The Engineering Report Vol. IV, Pt. 2
The Engineering Report Vol. IV, Pt. 3
The Engineering Report Vol. IV, Pt. 4
The Engineering Report Vol. IV, Pt. 5

Final Environmental Impact Statement

The Final Environmental Impact Statement (FEIS) for the Cowlitz County Headquarters Landfill solid waste permit is now available. To improve accessibility, the document has been optimized and divided into smaller sections for quicker downloads. Original digital copies are also available upon request.

To download the FEIS, please use the links below:


Archived Documents

The original (1990-1993) Environmental Impact Statement (EIS) and National Pollution Discharge Elimination System (NPDES) permit for this landfill are also available. Due to their large size, these documents have been divided into multiple volumes.

The documents above do not include all available records for the Headquarters Landfill. Numerous additional documents remain in physical form and are accessible at the Building and Planning office.