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Appendix E-2 Paleontological Resources Assessment, Cogstone, November 2014, Revised December 2016 PALEONTOLOGICAL RESOURCES ASSESSMENT REPORT FOR THE PARADISE VALLEY SPECIFIC PLAN PROJECT IN RIVERSIDE COUNTY, CALIFORNIA Project Information: Cottonwood Basin USGS 7.5’ quadrangle 1988 Thermal Canyon USGS 7.5’ quadrangle 1972 APN# 713-05-0002, 713-06-0001, 713-06-0004, 713-03-1006, 713-03-2001, 713-03-1005, 713-03-1004, 713-03- 1002, 713-03-1012, 705-17-0025, 713-03-1001, 713-06-0003, 713-07-2005, 713-07-2001, 713-07-1001, 713-04- 0005, 713-04-0006, 713-04-0007, 713-04-0008, 713-06-0002, 713-04-0003, 713-04-0002, 713-07-2004 SP 399 Prepared on Behalf of: Glorious Land Company 13181 Crossroads Parkway North, Suite 350, City of Industry, CA 91746 Prepared for: County of Riverside, Planning Department Bureau of Land Management Riverside Co Desert Permit Assistance Center Palm Springs-South Coast Field Office 38686 El Cerrito Road 1201 Bird Center Drive Palm Desert, CA 92211 Palm Springs, CA 92262-8001 Principal Investigator: Sherri Gust 1518 West Taft Avenue, Orange, CA 92865 (714) 974-8300 BLM Paleontological Use Permit: CA-13-005; Paleontological Field Authorization: 14-04 Project No: 66.66 14-15; Cogstone Project Number: 2831 Type of Study: Paleontological Assessment Fieldwork Dates: October 6, 2011 and September 22-26, 2014 Localities: None Area: 5,000 acres Key Words: negative survey; Holocene; Quaternary alluvium; older Quaternary alluvium; Pleistocene to Pliocene Ocotillo Formation; Pliocene Palm Springs Formation; Miocene to Pliocene Mecca Formation; pre-Cenozoic plutonic, metamorphic, and granitic rocks Authors: Courtney Richards and Sherri Gust November 2014; revised December 2016 1518 West Taft Avenue Branch Offices cogstone.com Orange, CA 92865 West Sacramento - Morro Bay - Inland Empire - San Diego Toll free (888) 333-3212 Office (714) 974-8300 Federal Certifications 8(a), SDB, 8(m) WOSB State Certifications DBE, WBE, SBE, UDBE Paradise Valley Specific Paleontological TABLE OF CONTENTS MANAGEMENT SUMMARY ................................................................................................................................ III! INTRODUCTION AND SETTING ........................................................................................................................... 1! PURPOSE OF STUDY .................................................................................................................................................... 1! PROJECT LOCATION .................................................................................................................................................... 2! PROJECT DESCRIPTION ............................................................................................................................................... 7! PROJECT PERSONNEL .................................................................................................................................................. 8! REGULATORY ENVIRONMENT ........................................................................................................................... 9! CALIFORNIA ENVIRONMENTAL QUALITY ACT OF 1970 .............................................................................................. 9! PUBLIC RESOURCES CODE .......................................................................................................................................... 9! RIVERSIDE COUNTY GENERAL PLAN, MULTIPURPOSE OPEN SPACE ELEMENT ........................................................ 10! DEFINITION OF SIGNIFICANCE FOR PALEONTOLOGICAL RESOURCES ....................................................................... 10! BACKGROUND ........................................................................................................................................................ 12! GEOLOGIC SETTING .................................................................................................................................................. 12! STRATIGRAPHY ........................................................................................................................................................ 12! RECORD AND LITERATURE SEARCH RESULTS .......................................................................................... 14! SENSITIVITY ANALYSIS ...................................................................................................................................... 14! RECONNAISSANCE RESULTS ............................................................................................................................. 15! POTENTIAL PALEONTOLOGICAL RESOURCES .......................................................................................... 17! RECOMMENDATIONS .......................................................................................................................................... 18! CERTIFICATION..................................................................................................................................................... 18! REFERENCES CITED ............................................................................................................................................. 19! APPENDIX A: QUALIFICATIONS ...................................................................................................................... 21! APPENDIX B: RECORDS SEARCH RESULTS ................................................................................................. 26! APPENDIX C: PFYC SYSTEM ............................................................................................................................. 31! LIST OF FIGURES FIGURE 1. PROJECT VICINITY ......................................................................................................................................... 1! FIGURE 2A. PROJECT AREA MAP 1 ................................................................................................................................. 3! FIGURE 2B. PROJECT AREA MAP 2 ................................................................................................................................. 4! FIGURE 2C. PROJECT AREA MAP 3 ................................................................................................................................. 5! FIGURE 3. PARADISE VALLEY LAND USE PLAN ............................................................................................................. 6! FIGURE 4. PROJECT GEOLOGY MAP ............................................................................................................................... 13! FIGURE 5. SURFICIAL QUATERNARY ALLUVIUM ........................................................................................................... 16! FIGURE 6. SURFICIAL OCOTILLO FORMATION .............................................................................................................. 16! FIGURE 7. WASH WALL WITH OCOTILLO FORMATION EXPOSED ................................................................................... 17! LIST OF TABLES TABLE 1. PROJECT LOCATION INFORMATION ................................................................................................................. 2! TABLE 2. PARADISE VALLEY LAND USE SUMMARY....................................................................................................... 8! TABLE 3. PALEONTOLOGICAL SENSITIVITY RESULTS .................................................................................................. 15 ! !"#$%"&'( ii Paradise Valley Specific Paleontological MANAGEMENT SUMMARY The purpose of this study was to determine the potential effects on paleontological resources of the proposed Paradise Valley Specific Plan project in unincorporated Riverside County, California. This study was requested by the County of Riverside to meet their responsibility as the lead agency under the California Environmental Quality Act (CEQA). Of the 5, 000 acre project area, 1,800 acres are slated for development (planned development area), leaving the remaining 3,200 acres as open space (planned open space area). Off-site improvements would include, a 92 kV power line and associated access roads, and realignment of an existing AT&T fiber optic communication line through the property, requiring off-site work within the existing AT&T easement on U.S. Bureau of Land Management (BLM) land. The proposed power line easement will encompass 75 acres, the alternative power line easement will encompass 89 acres, and the ATT fiber optic splice alignment will encompass 22 acres. The project surface is mapped as Quaternary alluvium; Pleistocene to Pliocene Ocotillo Formation, Pliocene Palm Springs Formation, Miocene to Pliocene Mecca Formation, and pre- Cenozoic plutonic, metamorphic, and granitic rocks. Field surveys conducted by Cogstone personnel confirmed the sediments as mapped. No fossils were observed during any of the surveys. The record searches determined that there are no known fossil localities within the Project Study Area (PSA). However, significant fossils have been recovered from the Ocotillo and Palm Springs formations in the vicinity. Additionally subsurface excavation deeper than 5 feet into sediments mapped as Quaternary alluvium may encounter older alluvial sediments with moderate potential to produce fossils. If excavations greater than 5 feet in depth are planned in areas mapped as Quaternary alluvium, or if excavations are planned in sediments