Study Reports

Notice of Intent (NOI)   Pre-Application Document (PAD)    Study Plan Document    Study Reports    Management Plans    Settlement Agreements   Draft License Application    Final License Application    Supplemental Biological Assessment    Clean Water Act 401 Certification

Douglas PUD will publish a series of Study Reports throughout the relicensing process. These reports will be the products of baseline information collected prior to filing of the Notice of Intent (NOI) and Pre-Application Document (PAD) and the published reports produced from the finalized study plan document.

Listed below are the reports currently available and the anticipated schedule for when other study reports will be finalized and available on this website:

Baseline Study Reports

• Aquatic Macroinvertebrate Inventory and RTE Assessment (733 KB)
• Bathymetric Mapping (55 MB)
• Botanical Resources: Cover Type Mapping, RTE Plant Surveys and Invasive Plant Species Surveys (20.4 MB)
• Bull Trout Monitoring Program (1.3 MB)
• Effects of Water Level Fluctuations on Natural Resources (652 KB)
• Limnological Investigation (10.2 MB)
• Macrophyte Identification and Distribution Study - Report (581 KB)
• Macrophyte Identification and Distribution Study - Maps (116.8 MB)
• Recreation Visitor Use Assessment (2 MB)
• Temperature Monitoring (10 KB)
• Total Dissolved Gas Study - 2005 (3.4 MB)
• Total Dissolved Gas Study - 2006 (4 MB)
• White Sturgeon Population and Life-History Assessment (735 KB)
• Wildlife Resources: Avian, Amphibian, Reptile & Small Mammal Surveys (24 MB)

Douglas PUD filed the Initial Study Report (ISR) Document on October 15, 2008.

Initial Study Report Document

Transmittal Letter

ISR Volume 1 (Sections 1-4)

• Volume 1 - Sections 1-4 (288 KB)

ISR Volume 2 (Appendices)

• Appendix A - Cultural Study Reports
  • Cultural Resources Investigation (281 KB)
• Appendix B - Recreation Study Reports
  • Public Access Study (11.5 MB)
  • Recreational Needs Analysis (3.21 MB)
• Appendix C - Terrestrial Study Reports
  • Piscivorous Wildlife Control Study (637 KB)
  • Transmission Line Wildlife and Botanical Study (74.2 MB)
• Appendix D - Aquatic and Water Quality Study Reports
  • Juvenile Lamprey Study (563 KB)
  • Adult Lamprey Passage Study (1.70 MB)
  • Total Dissolved Gas Investigation (3.84 MB)
  • Water Temperature Study (5.15 MB)
  • Okanogan Toxins Study (6.72 MB)
  • DO, pH and Turbidity Study (not required by FERC) (1.16 MB)
  • Lamprey Spawning Assessment (not required by FERC) (14.7 MB)
• Appendix E - Summary of Consultation
  • Summary of Consultation (16.7 MB)
• Errata Letter for ISR

ISR Response Comments Letter

Douglas PUD filed the Updated Study Report (USR) Document on

April 15, 2009.

Updated Study Report Document

Transmittal Letter

Updated Study Report Document

• Appendix A - Aquatic Study Reports

• Total Dissolved Gas Investigation (3.93 MB)

• DO, pH and Turbidity Study (2.24 MB)

• Adult Lamprey Passage Study (1.61 MB)

• Appendix B - Terrestrial Study Report

• Transmission Line Wildlife and Botanical Study (13.4 MB)

• Appendix C - Summary of Consultation

• Summary of Consultation (9.64 MB)

Supplemental Studies

• 2009 Phase III TDG Report (3.70 MB)

Water Temperature Animation 2006