Final Archaeological and Historical Investigations for the Energia Sierra Juarez U.S
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FINAL ARCHAEOLOGICAL AND HISTORICAL INVESTIGATIONS FOR THE ENERGIA SIERRA JUAREZ U.S. GEN-TIE LINE PROJECT JACUMBA, CALIFORNIA Energia Sierra Juarez U.S. Transmission, LLC MUP 09-008, Log No. 09-22-001 Lead Agency: County of San Diego Department of Planning and Land Use Contact: Patrick Brown 5201 Ruffin Road, Suite B San Diego, California 92123 (619) 694-3831 Preparers: Stacey C. Jordan, Ph.D., R.P.A., EDAW, Inc. 1420 Kettner Blvd., Suite 500 San Diego, California 92101 (619) 233-1454 _____________________________ Stacey C. Jordan, Ph.D. With contributions by Ecology & Environment, Inc. Project Proponent: Energia Sierra Juarez U.S. Transmission, LLC 101 Ash Street, HQ 14 San Diego, California 92101 MayJuly 2010 National Archaeological Data Base Information Authors: Stacey C. Jordan with contributions by Ecology & Environment, Inc. Firm: EDAW, Inc. Client/Project Energia Sierra Juarez U.S. Transmission, LLC Proponent: Report Date: July 2010 Report Title: Draft Archaeological and Historical Investigations for the Energia Sierra Juarez U.S. Gen-Tie Line Project, Jacumba, California Type of Study: Intensive Pedestrian Survey and Phase I Testing New Sites: CA-SDI-19480, CA-SDI-19484, CA-SDI-19485, CA-SDI-19486, CA-SDI-19488, CA-SDI-19489, CA-SDI-19490, CA-SDI-19492, CA-SDI-19493, CA-SDI-19494, P-37-30672, P-37-30673, P-37-30674, P-37-30675, P-37-30678 Updated Sites CA-SDI-6119 USGS Quad: In-Ko-Pah Gorge 1975 Acreage: Approximately 73.81 acres Permit Numbers: MUP 09-008, Log No. 09-22-001 Key Words: Intensive pedestrian survey, Phase I testing; ceramic scatter, lithic scatter, lithic reduction area, quarry, CA-SDI-6119, CA-SDI-19480, CA-SDI-19484, CA-SDI-19485, CA-SDI-19486, CA-SDI-19488, CA-SDI-19489, CA-SDI-19490, CA-SDI-19492, CA-SDI-19493, CA-SDI-19494, P-37-30672, P-37-30673, P-37-30674, P-37-30675, P-37-30678 TABLE OF CONTENTS Section Page LIST OF ACRONYMS AND ABBREVIATIONS ............................................................... v MANAGEMENT SUMMARY .......................................................................................... vii 1.0 INTRODUCTION .................................................................................................. 1 1.1 Project Description ..................................................................................... 1 1.2 Existing Conditions .................................................................................. 10 1.2.1 Environmental Setting ................................................................ 10 1.2.2 Records Search Results ............................................................. 19 1.3 Applicable Regulations ............................................................................ 26 1.3.1 California Environmental Quality Act .......................................... 26 1.3.2 San Diego County Local Register of Historical Resources ......... 26 1.3.3 Resource Protection Ordinance ................................................. 27 2.0 GUIDELINES FOR DETERMINING SIGNIFICANCE ......................................... 29 3.0 RESEARCH DESIGN ......................................................................................... 31 4.0 ANALYSIS OF PROJECT EFFECTS ................................................................. 35 4.1 Survey Methods ....................................................................................... 35 4.1.1 Survey Methods ......................................................................... 35 4.1.2 Native American Consultation .................................................... 36 4.2 Survey Results ........................................................................................ 36 4.2.1 Sites Within the APE .................................................................. 37 4.2.2 Isolates Within the APE .............................................................. 41 4.3 Testing Methods ...................................................................................... 42 4.3.1 Field Methods ............................................................................. 42 4.3.2 Analytical Methods ..................................................................... 45 4.3.3 Curation ...................................................................................... 46 4.3.4 Results ....................................................................................... 46 4.3.5 Discussion .................................................................................. 53 5.0 INTERPRETATION OF RESOURCE IMPORTANCE AND IMPACT IDENTIFICATION ............................................................................................... 57 5.1 Resource Importance .............................................................................. 57 5.2 Impact Identification ................................................................................. 58 6.0 MANAGEMENT CONSIDERATIONS – MITIGATION MEASURES AND DESIGN CONSIDERATIONS............................................................................. 61 6.1 Mitigable Impacts ..................................................................................... 61 6.2 No Significant Adverse Effects ................................................................ 61 7.0 REFERENCES ................................................................................................... 63 Archaeological and Historical Investigations, Energia Sierra Juarez U.S. Gen-Tie Line Project Page i Jordan 2010. ESJ Gen-Tie Archy Rpt_Updated_July2010 10/14/2020 8.0 LIST OF PREPARERS AND PERSONS AND ORGANIZATIONS CONTACTED ..................................................................................................... 69 9.0 LIST OF MITIGATION MEASURES AND DESIGN CONSIDERATIONS ........... 71 APPENDICES A Records Search Results (Confidential – Bound Separately) B Resumes of Key Personnel C DPR Forms (Confidential – Bound Separately) D Native American Consultation E Confidential Figures (Confidential – Bound Separately) Page ii Archaeological and Historical Investigations, Energia Sierra Juarez U.S. Gen-Tie Line Project Jordan 2010. ESJ Gen-Tie Archy Rpt_Updated_July2010 10/14/2020 LIST OF FIGURES Figure Page 1 Regional Location Map ......................................................................................... 2 2a Project Vicinity (Routes A1 and A2) ...................................................................... 3 2b Project Vicinity (Alternative Routes D1 and D2) ................................................... 4 3a Study Area and Site Plan (Routes A1 and A2) ..................................................... 5 3b Study Area and Site Plan (Alternative Routes D1 and D2) ................................... 6 4a Cultural Resources Within Or Adjacent to the Project Area (Routes A1 and A2) ............................................................................................................... 38 4b Cultural Resources Within Or Adjacent to the Project Area (Alternative Routes D1 and D2) ............................................................................................. 39 5a Cultural Resources Subjected To Testing (Routes A1 and A2) .......................... 43 5b Cultural Resources Subjected To Testing (Alternative Routes D1 and D2) ........ 44 6 CA-SDI-6119, Excavation ................................................................................... 47 7 CA-SDI-6119, TEU 1 North Wall Profile ............................................................. 49 8a CA-SDI-19488, -19490, -19493, and -19494, Excavation (Routes A1 and A2) .. 51 8b CA-SDI-19488, -19490, -19493, and -19494, Excavation (Alternative Routes D1 and D2) ......................................................................................................... 52 9a Cultural Resources Testing Results (Routes A1 and A2) ................................... 54 9b Cultural Resources Testing Results (Alternative Routes D1 and D2) ................. 55 LIST OF TABLES Table Page 1 500 kV and 230 kV Parameters ............................................................................ 8 2a Land Disturbance (Routes A1 and A2) ................................................................. 9 2b Land Disturbance (Routes D1 and B2) ................................................................. 9 3 Previous Investigations within a 1-Mile Radius of the Project APE ..................... 20 4 Previously Recorded Cultural Resources within a 1-Mile Radius of the Project APE ........................................................................................................ 22 5 Cultural Resources Within the ESJ Gen-Tie APE ............................................... 37 6 CA-SDI-6119, Cultural Material Summary by Depth ........................................... 46 7 CA-SDI-6119, Cortex Removal by Provenience ................................................. 48 8 CA-SDI-6119, Debitage Material by Provenience ............................................... 48 9 CA-SDI-19490, Cortex Removal by Provenience ............................................... 50 10 CA-SDI-19490, Debitage Material by Provenience ............................................. 50 11 CA-SDI-19494, Debitage Material by Provenience ............................................. 53 12 Subsurface Potential for Resources within the APE ........................................... 58 Archaeological and Historical Investigations, Energia Sierra Juarez U.S. Gen-Tie Line Project Page iii Jordan 2010. ESJ Gen-Tie Archy Rpt_Updated_July2010 10/14/2020 Page iv Archaeological and Historical