HISTORIC RESOURCES REPORT FOR THE SUMMIT ESTATES PROJECT SAN DIEGO COUNTY, CALIFORNIA PDS2019-TM-5635 Lead Agency: County of San Diego Planning & Development Services 5510 Overland Avenue, Suite 310 San Diego, California 92123 (858) 694-3656 Preparer: Brian F. Smith and Associates, Inc. 14010 Poway Road, Suite A Poway, California 92064 (858) 484-0915 ___________________ Signature Project Proponent: 2510 Summit, LLC 19782 MacArthur Boulevard, Suite 300 Irvine, California 92612 Contact: Oscar Uranga (949) 933-4103 June 26, 2019; Revised June 11, 2020 The Summit Estates Project ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Archaeological Database Information Authors: Jennifer R.K. Stropes and Brian F. Smith Consulting Firm: Brian F. Smith and Associates, Inc. 14010 Poway Road, Suite A Poway, California 92064 (858) 484-0915 Client/Project Proponent: 2510 Summit, LLC 19782 MacArthur Boulevard, Suite 300 Irvine, California 92612 Contact: Oscar Uranga (949) 933-4103 Report Date: June 26, 2019; Revised June 11, 2020 Report Title: Historic Resources Report for the Summit Estates Project, San Diego County, California (PDS2019-TM-5635) Type of Study: Historic Resources Evaluation New Site(s): P-37-038444 USGS Quadrangle: Escondido, California (7.5 minute), Township 12 South, Range 2 West (projected) Acreage: 22.89 acres Key Words: Historic structure evaluation; P-37-038444; limited significance; no historic importance; no mitigation recommended; Escondido. i The Summit Estates Project ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Table of Contents Section Page LIST OF ACRONYMS ........................................................................................................... v MANAGEMENT SUMMARY/ABSTRACT ........................................................................ vi 1.0 INTRODUCTION ...................................................................................................1.0–1 1.1 Project Description ...................................................................................................1.0–1 1.2 Existing Conditions ..................................................................................................1.0–1 1.2.1 Environmental Setting ...................................................................................1.0–1 1.2.2 Results of the Archaeological Records Search ..............................................1.0–14 1.3 Applicable Regulations ............................................................................................1.0–17 1.3.1 California Environmental Quality Act ...........................................................1.0–17 1.3.2 San Diego County Local Register of Historical Resources (Local Register) ...................................................................................................................1.0–19 1.3.3 County of San Diego Resource Protection Ordinance ...................................1.0–20 2.0 GUIDELINES FOR DETERMINING SIGNIFICANCE .......................................2.0–1 3.0 RESEARCH DESIGN .............................................................................................3.0–1 4.0 ANALYSIS OF PROJECT EFFECTS ....................................................................4.0–1 4.1 Methods....................................................................................................................4.0–1 4.1.1 Archival Research ..........................................................................................4.0–1 4.1.2 Survey Methods .............................................................................................4.0–1 4.1.3 Structural Assessment ....................................................................................4.0–1 4.2 Survey Results .........................................................................................................4.0–2 4.3 Field Investigation ...................................................................................................4.0–2 4.4 Discussion/Summary ...............................................................................................4.0–28 5.0 INTERPRETATION OF RESOURCE IMPORTANCE AND IMPACT IDENTIFICATION ..................................................................................................5.0–1 5.1 Resource Importance ...............................................................................................5.0–1 5.2 Impact Identification ................................................................................................5.0–1 6.0 MANAGEMENT CONSIDERATIONS – MITIGATION MEASURES AND DESIGN CONSIDERATIONS ...............................................................................6.0–1 ii The Summit Estates Project ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Table of Contents (continued) Section Page 6.1 Mitigable Impacts ....................................................................................................6.0–1 6.2 Recommended Mitigation Measures .......................................................................6.0–1 7.0 REFERENCES CITED ............................................................................................7.0–1 8.0 LIST OF PREPARERS AND ORGANIZATIONS CONTACTED .......................8.0–1 9.0 LIST OF MITIGATION MEASURES AND DESIGN CONSIDERATIONS .......9.0–1 List of Appendices Appendix A – Resumes of Key Personnel Appendix B – Site Record Form* Appendix C – Archaeological Records Search Results* Appendix D – Table 1.2–2 Appendix E – Historic Documents * Deleted for public review and bound separately in the Confidential Appendix List of Figures Figure Page Figure 1.1–1 General Location Map ...................................................................................1.0–2 Figure 1.1–2 Project Location Map (USGS) ......................................................................1.0–3 Figure 1.1–3 Project Development Map .............................................................................1.0–4 Figure 4.2–1 Historic Resource Location Map ...................................................................4.0–5 Figure 5.1–1 Historic Resource Shown on Project Development Map ..............................5.0–2 iii The Summit Estates Project ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– List of Plates Plate Page Plate 4.2–1 East Façade of the Building, Facing Northwest ...............................................4.0–3 Plate 4.2–2 Northeast Corner of the Building, Facing Southwest ......................................4.0–4 Plate 4.3–1 1946 Aerial Photograph ...................................................................................4.0–6 Plate 4.3–2 East Façade of the Building Showing the 1963 Enclosed Porch (Center) and Converted Garage (Right), Facing North ..................................................4.0–8 Plate 4.3–3 East Façade of the Building Showing the 1963 Enclosed Porch (Center) and Converted Garage (Right), Facing Northwest ...........................................4.0–9 Plate 4.3–4 West Façade of the Building Showing the 1963 Enclosed Porch Between the Original Residence (Right) and the 1980 to 1989 Garage Addition (Left), Facing Northeast ...............................................................................................4.0–10 Plate 4.3–5 North Façade of the Building Showing the 1980 to 1989 Two-Car Garage Addition (Right), Facing Southeast ..................................................................4.0–11 Plate 4.3–6 East Façade of the Building Showing the Decorative, Scalloped, Wood Siding in the Gable End, Facing Southwest .....................................................4.0–13 Plate 4.3–7 Southeast Corner of the Building, Facing North .............................................4.0–14 Plate 4.3–8 South Façade of the Building, Facing Northeast .............................................4.0–15 Plate 4.3–9 South Façade of the Building Showing a Non-Original Window, Facing Northeast ..........................................................................................................4.0–16 Plate 4.3–10 West Façade of the Building Showing the Original Entryway, Facing Southeast .......................................................................................................4.0–17 Plate 4.3–11 East Façade of the 1963 Converted Garage, Facing Northwest ....................4.0–18 Plate 4.3–12 1964 Aerial Photograph .................................................................................4.0–22 Plate 4.3–13 1980 Aerial Photograph .................................................................................4.0–23 Plate 4.3–14 1989 Aerial Photograph .................................................................................4.0–24 List of Tables Table Page Table 1.2–1 Cultural Resources Within One-Quarter Mile of the Project .........................1.0–14 Table 5.1–1 Site Significance Summary and Impact Evaluations ......................................5.0–1 iv The Summit Estates Project ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– List of Acronyms APN Assessor’s Parcel Number BFSA Brian F. Smith and Associates, Inc. CEQA California Environmental Quality Act CRHR California Register of Historical