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Appendix E.1 - Cultural Report
Appendix E.1 Cultural Report SWCA, 2021 Travertine SPA Draft EIR SCH# 201811023 Technical Appendices October 2023 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California NOVEMBER 2021 PREPARED FOR TRG Land, Inc. PREPARED BY SWCA Environmental Consultants ADDENDUM TO THE SUPPLEMENTAL CULTURAL RESOURCES TECHNICAL REPORT FOR THE TRAVERTINE LAND DEVELOPMENT PROJECT, CITY OF LA QUINTA, RIVERSIDE COUNTY, CALIFORNIA Confidential - Not for Public Distribution Prepared for TRG Land, Inc. 898 Production Place Newport Beach, California 92663 Prepared by Stephanie Cimino, M.S. and Mandi Martinez, M.A., RPA, SWCA Environmental Consultants 51 West Dayton Street Pasadena, California 91105 (626) 240-0587 www.swca.com SWCA Project No. 44489.01 SWCA Cultural Resources Report No. 21-606 November 2021 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California CONTENTS Introduction 1 Regulatory Setting 3 Area of Potential Effects and additional study areas 3 Area of Potential Effects 3 Area of Direct Impact 3 IID/CVWD Study Area 8 Methods 8 Prior Work by SWCA Environmental Consultants for the Travertine Land Development Project 8 Martinez Mountain Rockslide District 9 Updated Records Search 9 Native American Outreach and Coordination 9 Field Survey 10 Results 10 Records Search 10 Previously Conducted Cultural Resources Studies within the APE and within a 0.5 -mile (0.8 -km) radius of the APE 10 Previously Conducted Cultural Resources Studies within the IID/CVWD Study Area 17 Previously Recorded Cultural Resources within the APE and a 0.5 -mile Radius of the APE 19 Previously Recorded Cultural Resources within the IID/CVWD Study Area 35 Additional Literature Review Results for the IID/CVWD Study Area 38 Field Survey 40 Newly Identified Sites 42 SWCA-S-44489-1000 42 SWCA-S-44489-1004 44 SWCA-S-44489-1005 45 SWCA-S-44489-1007 46 SWCA-S-44489-1008 47 SWCA-44489-S-999 48 Newly Identified Isolates 49 SWCA-ISO-44489-1006 49 SWCA-ISO-44489-1010 50 SWCA-44489-ISO-990 51 Previously Recorded Sites 51 P-33-001340 51 P-33-001343 52 P-33-013296 52 P-33-013297 52 P-33-014987 52 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Evaluation Recommendations 53 SWCA-S-44489-1000 53 SWCA-S-44489-1004 53 SWCA-S-44489-1005 53 SWCA-S-44489-1007 54 SWCA-S-44489-1008 54 SWCA-44489-S-999 54 IID/CVWD Study Area Cultural Resources Sensitivity Assessment 55 Potential for Prehistoric and Historic -Era Native American Archaeological Resources in the IID/CVWD Study Area 55 Potential for Historic -Era Archaeological Resources in the IID/CVWD Study Area 55 Summary and Recommendations 56 Avoidance and Mitigation Measures 57 References Cited 60 Appendices Appendix A Previous Cultural Resources Reports Appendix B. Native American Consultation Appendix C. California Department of Parks and Recreation 523 Forms Figures Figure 1. Project vicinity 2 Figure 2. Project location map showing APE and undeveloped areas to the east (IID/CVWD Study Area). 4 Figure 3. APE and ADI 5 Figure 4. APE and ADI on aerial image. 6 Figure 5. IID/CVWD Study Area. 7 Figure 6a. Previously conducted cultural resources studies within the project APE and the 0.5 -mile radius of the APE. 13 Figure 6b. Previously conducted cultural resources studies within the project APE and the 0.5 -mile radius of the APE. 14 Figure 6c. Previously conducted cultural resources studies within the project APE and the 0.5 -mile radius of the APE. 15 Figure 6d. Previously conducted cultural resources studies within the project APE and the 0.5 -mile radius of the APE. 16 Figure 7. Previously conducted cultural resources studies within the IID/CVWD Study Area and a 0.5 - mile radius of the IID/CVWD Study Area 17 Figure 8a. Previously recorded sites within the project APE and the 0.5 -mile radius of the APE. 26 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Figure 8b. Previously recorded sites within the project APE and the 0.5 -mile radius of the APE. 27 Figure 8c. Previously recorded sites within the project APE and the 0.5 -mile radius of the APE. 28 Figure 8d. Previously recorded sites within the project APE and the 0.5 -mile radius of the APE. 29 Figure 9a. Previously recorded isolates within the project APE and the 0.5 -mile radius of the APE. 30 Figure 9b. Previously recorded isolates within the project APE and the 0.5 -mile radius of the APE. 31 Figure 9c. Previously recorded isolates within the project APE and the 0.5 -mile radius of the APE. 32 Figure 9d. Previously recorded isolates within the project APE and the 0.5 -mile radius of the APE. 33 Figure 10. Previously recorded sites and isolates within the IID/CVWD Study Area and the 0.5 -mile radius of the IID/CVWD Study Area 34 Figure 11. Newly identified and previously recorded sites that intersect the 2019-2020 survey area. 41 Figure 12. Site SWCA-S-44489-1000 that intersects the additional APE 43 Figure 13. Site SWCA-S-44489-1000, Locus 1001 overview, facing east 43 Figure 14. Site SWCA-S-44489-1000, Locus 1002 overview, facing east 44 Figure 15. Site SWCA-S-44489-1004 overview, facing south. 45 Figure 16. Site SWCA-S-44489-1005 overview, facing north. 46 Figure 17. Site SWCA-S-44489-1007 overview, facing south-southwest 47 Figure 18. Site SWCA-S-44489-1008 overview and Guadalupe Dike, facing southeast. 48 Figure 19. Site SWCA-44489-S-999 overview, facing north. 49 Figure 20. Isolate SWCA-ISO-44489-1006 brown ware sherd plan view. 50 Figure 21. Isolate SWCA-ISO-44489-1010 overview, facing northeast. 51 Tables Table 1. Previously Conducted Cultural Resources Studies within the APE and the 0.5 -mile Radius around the APE 10 Table 2. Previously Conducted Cultural Resources Studies within the IID/CVWD Study Area 18 Table 3. Previously Recorded Cultural Resources Sites within the Area of Potential Effects and a 0.5 -mile Radius of the Area of Potential Effects 20 Table 4. Previously Recorded Isolates within the Area of Potential Effects and a 0.5 -mile Radius of the Area of Potential Effects 23 Table 5. Previously Recorded Cultural Resources Sites within the IID/CVWD Study Area and its 0.5 -mile Radius 35 Table 6. Previously Recorded Isolates within the IID/CVWD Study Area and its 0.5 -mile Radius 36 Table 7. Newly Identified Cultural Resources Within or Near the Area of Potential Effects (2019-2021) 40 iii Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California This page intentionally left blank. iv Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California INTRODUCTION In 2006, SWCA Environmental Consultants (SWCA) was contracted by Hofmann Land Development, LLC (HLD), to conduct cultural resources studies for the Travertine Land Development Project (project) located in the city of La Quinta, Riverside County, California (Figure 1). HLD proposes the development of the Travertine master planned resort community (Travertine) located on the southern edge of Coachella Valley at the base of the Santa Rosa Mountains in Riverside County, California. The project is located on a mix of private land within the jurisdiction of the City of La Quinta (City) and adjacent to or crossing public land owned by the Bureau of Land Management (BLM) and Bureau of Reclamation (BOR). The project is, therefore, subject to both Section 106 of the National Historic Preservation Act of 1966 (Section 106 of the NHPA) and the California Environmental Quality Act (CEQA). In 2017, SWCA was contracted to update the cultural resources studies from 2006. At that time, SWCA revisited the project area and formally recorded and assessed an archaeological district (Martinez Mountain Rockslide District [MMRD]) for evaluation purposes. In addition, SWCA assisted the City with Native American consultation under Assembly Bill 52 (AB52). From 2019 through 2021, the project area of potential effects (APE) was expanded to include new areas to the north, east, and west of the original project area. Nearly 117 acres of the newly added portions of the APE had not been subject to previous study and SWCA was again contracted to conduct cultural resources investigations for the newly added acreage. In addition, the project proponent identified the need for associated off-site project infrastructure, including a new Imperial Irrigation District (IID) substation and new Coachella Valley Water District (CVWD) well sites. As specific locations for these facilities had not yet been selected for development at the time of this study, assessment was limited to reviewing available literature and information provided by the City of La Quinta and assessing geoarchaeological sensitivity for the general vicinity to the east of the APE where infrastructure is likely to be sited; no formal records search or pedestrian survey was conducted for the IID/CVWD study area. In addition, at the request of the BLM, SWCA revisited the MMRD to assess the effects of winter storms since its recording in 2017. Although the overall APE has expanded, the area of direct impact (ADI), defined as those areas proposed for project construction and development activities, has been reduced to exclude all known resources contributing to the MMRD and other culturally sensitive areas. This addendum documents the results of the cultural resources investigations between 2019 and 2021 and assesses overall project impacts within the APE, ADI and IID/CVWD Study Area. Details for previous findings can be found in the 2006 and 2017 studies (Sikes and O'Neil 2006; Martinez and Nicolay 2017) included as Appendix A (note that the 2006 report is included as an appendix to the 2017 report). This study includes the results of an updated records search for the APE, an intensive pedestrian survey of those portions of the APE not covered in previous reports, a summary of all resources within the APE and ADI, an archaeological sensitivity assessment for the IID/CVWD Study Area, and management recommendations for the project as a whole that incorporate the results of AB52 consultation. This study was prepared by Senior Cultural Resources Project Manager Stephanie Cimino, M.S.; Cultural Resources Team Lead Mandi Martinez, M.A., Registered Professional Archaeologist (RPA) with contributions from Principal Investigator Michael Bever, Ph.D., RPA; archaeologist Trevor Gittlehough, M.A., RPA; and archaeologist David Sayre, M.A.; and geoarchaeological analysis from Alyssa Bell, Ph.D., and Mathew Carson, M.A. 1 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Plig Bear Lake 3LLn• m Llanring 1• ICyltwiId was YuccaYaliey 1•.feritynin.Palms i y. t 1 1 r 1 F s A 1+ B L 1eN A R 6f y u 7i r A L: i r.e s'o ❑ , A, Deser 111..{ r SprIUys ,�-� (- Pelee' spring; Cathedral City Palm Desert: -1 � s ■Y La Quints' 4n 8 nl A fr. p . hr 17 -$. 4 • JOSHUA 1"2m 'MEF S 0cr 7n ent o San Francisco .II: „Fresno L:1•r 1 LosAngele- Project Location 1.: 44,•m r tC COTTOWWO0D MOUNTAfN5 r• E MS �;AlMirFN A A:OVElork+ igo 4. P T ARPpE TOIYES-gel 1 E. 86 rr.l i'Tr• 11641-4411 !Berm =:Ili=1•'•': J • i.CHrA r SA/EL ?9 I`.•Alm los .uevres Arlin. 1r, Legend 0 Area of Potential Effects Borregd Springs A 0 1• 401 ANDS 514 AVERS VALU ( • C• • •4 tr. iMecta I Ihxi 90 PFG O F! e L + F":Fl.l. ;, 1 . ! .. 1 1 a 4F t_ Salton Sea Salton 6ty a 12.5 0 KIIDmc:• 15 30 1.800,000 National Geographic (2013) Riverside County, CA NAD 1983 UTM Zone 11N 8/5/2021 7s SWCA ENYIEONMENTAL COHSULTANIS 51 West Dayton Street Pasadena, California 91105 Phone: 626.240.0567 Fax. 828.240.0807 YvwW.5WCS.com Figure 1. Project vicinity. 2 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California REGULATORY SETTING The regulatory setting for this project is discussed as part of the Supplemental Cultural Resources Technical Report (Martinez and Nicolay 2017) attached to this document as Appendix A and on file with the City of La Quinta. The regulatory setting has not changed since the project's 2017 iteration. The entire project is located on a mix of private and public land (BLM and BOR). Therefore, the project is subject to both Section 106 of the NHPA and the CEQA. The regulatory setting section in Martinez and Nicolay (2017) identifies federal and state legislation that govern the identification and treatment of cultural resources and the requirements for analysis of project -related effects to these resources. The lead agency must consider these requirements when making decisions on projects that may affect cultural resources. The current project was undertaken in conformance with these regulations. AREA OF POTENTIAL EFFECTS AND ADDITIONAL STUDY AREAS Area of Potential Effects The APE was delineated to identify all architectural and archaeological resources listed in or eligible for the National Register of Historic Places (NRHP) or California Register of Historical Resources (CRHR) that may be directly or indirectly affected by the proposed project. The APE is on undeveloped or agricultural land plotted within Sections 32, 33, and 34, Township 6 South, Range 7 East, and Sections 3, 4, and 5, Township 7 South, Range 7 East, as depicted on the U.S. Geological Survey 7.5 -minute quadrangle for Martinez Mountain, California (Figures 2 to 4). The proposed project is located on a 969 - acre area generally located between Avenue 60 to the north, Avenue 64 to the south, Coachella Valley Water District (CVWD) Dike No. 4 on the east, and Jefferson Street on the west. The project APE has been modified since the December 2017 investigation by Martinez and Nicolay. It now includes an 83 -acre flood control area along the CVWD Guadalupe Dike system and Jefferson Street on the north and west sides of the project, less than 1 acre for an existing CVWD booster pump on CVWD Dike No. 2 near the intersection of Jefferson Street and 58th Avenue, an approximately 14 -acre linear extension along Madison Avenue, and approximately 20 acres along Avenue 62 east of the project area to the CVWD Booster Pump at Monroe Avenue for a total of 117 acres (see Figures 3 and 4). Most of this area was not subject to previous study and is the primary focus of this document. The vertical APE for the project (depth of construction disturbance) may reach up to 50 feet below ground surface, with 5 feet of over -excavation throughout the central portion of the APE, and 4 feet of removal along the southern and western portions of the APE. Under Section 106 of the NHPA, assessment of indirect effects to historic properties, and under CEQA, indirect impacts to historical resources, is also required. As used here, indirect effects would include such effects as visual changes to the setting, feeling, or association of a resource that could adversely affect a resource's eligibility for the NRHP or CRHR. For the current project, no historic properties or historical resources (including built environment resources) that could be subject to visual or other indirect impacts or effects as a result of the project have been identified within a 0.25 -mile (0.40 -kilometer [km]) radius. Therefore, an indirect APE was not defined for this project. Area of Direct Impact For purposes of analysis, an ADI was also identified within the APE where project construction and development activities will have direct potential to affect (under Section 106 of the NHPA) or impact (under CEQA) cultural resources. The total ADI comprises 557 acres of the APE and excludes the MMRD and other culturally sensitive areas at the south end of the project (see Figures 3 and 4). 3 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California © Travertine APE 0 Township and Range USGS 7.5 -minute Quadrangle Bureau of Indian Affairs Bureau of Land Management Bureau of Reclamation State of California N 0.75 1.5 1:48,000 Miles Kilometers 2 USGS Topographic Basemap (ESRI) Riverside County, CA NAD 1983 LJTM Zone 1114 6/16/2022 SWCA EN4 I RO NMENTAL CONSULTANTS 51 West Dayton Street Pasadena, California 91105 Phone: 826.249.0587 Fax: 626.240.0607 www SWCR rnm Figure 2. Project location map showing APE and undeveloped areas to the east (IID/CVWD Study Area). 4 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California _.■ Additional APE Area approximately 1 -mile north Area of Potential Effects ® Additions to APE {2019-2020) Area of Direct Impact Township and Range Q USGS 7.5 -minute quadrangle Bureau of Indian Affairs ff� Bureau of Land Management NM Bureau of Reclamation State of California N 0.25 0.5 Kilometers 025 0.5 1:24.000 Miles NAIP Aerial Imagery (2020) Riverside County, CA NAD 1983 UTM Zone 11N 11119/2021 SWCP ENVIgQN.NENTAL COHSLILTAH1 S 51 West Dayton Street Pasadena, California 91105 Phone: 028.240.0587 Fax: 626.240.0607 www swca com Figure 3. APE and ADI. 5 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Additior al APE Area approximate! �A% Legend p Area of Potentia! Effects ® Additions to APE (2019-2020) Area of Direct Impact 0 025 0.5 Kilometers 0 025 0.5 1:24,000 Miles NAIP Aerial Imagery (2020) Riverside County, CA NAD 1983 UTM Zone 11N 11/22/2021 SWCP EHV!RQN MENTAL CQNSLI LTAN1 S 51 West Dayton Street Pasadena, California 91105 Phone' 826.240.0587 Fax: 626.240.0607 WWW swca Com Figure 4. APE and ADI on aerial image. 6 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California NUE I n • it II u 11 • 11is •II • • 58 - -j ' .i. �I ri� n i 11 11 Imo__-- AVENUE ,-__.. , -77 ti u :Vi •, - 26 25; Indio . a. _ Valerie • .PIPELINE - 26 25.; W- m { `i` I- 76 AVENUE 60 ' ` TfiS, 138,, 2 01 Y� Z U Swimming 6• -) * Pool ing PoollY35 AVE _ p0 i It III B iiH 1'.�j7IC V 6T J� �- (((fff i '-1 ll II• 0 ji ., to AVENUE 62 -11 • 92 I TORRS I R l' l " lam• 7 1- ork• NZI • creel As: copyfiglI O L,13 Id axonal Ge g �T7S, R8E- Legend Study Area Q Township and Range USGS 7.5 -minute N 0 2,000 4,000 Feet sw c ENVIRONMENTAL CONSVLTANI 5 51 West Dayton Street Pasadena, California 91105 Phone: 626.240.0587 Fax: 626.240.0607 www-swca-com Meters A 0 500 1,000 1'24,000 USGS 7.5 -minute Quadrangle Valerie and Indio Riverside County, CA NAD 1983 UTM Zone 11N 2/1/2023 Quadrangle Figure 5. IID/CVWD Study Area. 7 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California IID/CVWD Study Area Off-site infrastructure, including but not limited to five well pad sites to be integrated into the CVWD system and one electric power substation to be integrated by the IID, may be required to support the project; however, final design and location of the wells and substation have not yet been identified. The proposed off-site infrastructure will be sited on undeveloped, private lands within 3 miles and to the east of the APE somewhere in Sections 22, 23, and 24, Township 6 South, Range 5 East on the U.S. Geological Survey (USGS) 7.5 -minute quadrangle for Indio, California; and Sections 25, 26, 27, 34, 35, and 36, Township 6 South, Range 7 East and Sections 1, 2, and 3, Township 7 South, Range 7 East on the USGS 7.5 -minute quadrangle for Valerie, California (Figure 5). METHODS To assess the newly added portions of the APE, SWCA reviewed the previous survey work and associated reports completed for the project in 2006 and 2017 as well as performed an updated records search for the newly added acreage at the Eastern Information Center (EIC) of the California Historical Resources Information System (CHRIS), located at University of California, Riverside, which houses records for Riverside County. SWCA also conducted additional archaeological survey of those portions of the APE added since the 2017 survey effort. To assess the off-site IID/CVWD Study Area, SWCA reviewed available environmental literature as well as previous cultural resources reports provided by the City of La Quinta; a CHRIS records search or field survey was not conducted for the study area. The following sections discuss the methods used for these efforts. Prior Work by SWCA Environmental Consultants for the Travertine Land Development Project In 2006, SWCA completed a cultural resources investigation for the earlier version of the project that included archaeological resources investigations covering 941 acres (Sikes and O'Neil 2006). This included a records search at the EIC, field survey of portions of the 941 acres, testing of site CA-RIV- 7394, and the completion of a technical report. That investigation resulted in the identification or updated recordation of 21 sites in or abutting the previous project's APE. Of these 21 sites, 11 were recommended eligible for the NRHP either by themselves or as part of a proposed archaeological district. Because of the identification of so many resources, HLD modified the footprint of the project to avoid impacts to all cultural resources. As part of this alteration, HLD reduced the APE and made plans to preserve portions of the APE along the southern, western, and eastern boundaries as Open Space/Restricted status. These alterations were made to restrict development due to biological, geological, and cultural resources concerns. In these areas, no construction, grubbing, grading, or other development will occur. In 2017, HLD retained SWCA to conduct an updated cultural resources assessment in support of the revised Travertine project (Martinez and Nicolay 2017). The study was intended to revisit and update the findings of the 2006 study and to identify and describe cultural resources that could be affected by ground -disturbing activities associated with the project. The proposed project was then located on an 877.5 -acre area. That study was performed in compliance with the CEQA and Section 106 of the NHPA and included a new CHRIS records search, pedestrian survey, and Native American consultation, and resulted in the identification of 14 resources within the APE, nine of which are contributors to the recommended NRHP-eligible MMRD. 8 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Martinez Mountain Rockslide District The MMRD is just outside the southern boundary of the project APE. It is made up of 14 prehistoric sites: CA-RIV-1331, CA-RIV-1349, CA-RIV-3872, CA-RIV-3873, CA-RIV-3874, CA-RIV-5322, CA-RIV- 5323, CA-RIV-7394, CA-RIV-7911, CA-RIV-7912, CA-RIV-7913, CA-RIV-7914, CA-RIV-7963, and CA-RIV-8152. Of these 14 sites, 10 contain one or more milling slicks, one consists of a Native American trail, one consists of a milling slick and associated rock shelter, and two are habitation sites. The sites appear to represent "part of a Late Prehistoric settlement system with a large resource procurement network" (Sikes and O'Neil 2006:62). The sites were recommended to be considered an archaeological district by Sikes and O'Neil (2006). The district was formally recorded and recommended eligible for inclusion in the NRHP and CRHR in 2017 (Martinez and Nicolay 2017). The MMRD is defined to include sites that: 1) contain at least one of the following elements (a) rock shelters, (b) milling features, (c) ceramic scatter, or (d) a trail network; 2) date to (or potentially date to) the Late Prehistoric period (A.D. 870—Historic Contact [1200 B.P.— Historic Contact]); and 3) are located within or abutting the Martinez Mountain Rockslide (MMR) geologic formation. Each of the above 14 sites are located along the northern edge of the MRR in La Quinta, California. The entire rockslide has not been surveyed; therefore, it is possible that there are additional sites, similar to the 14 known sites, located in other areas of the rockslide. Updated Records Search On October 9, 2019, an SWCA cultural resources specialist conducted an updated records search at the EIC for previous cultural resources studies and previously recorded cultural resources within the portions of the APE not studied in 2006 or 2017 and a 0.5 -mile (0.8 -km) radius. The CHRIS search also included a review of the NRHP, the CRHR, the California Points of Historical Interest list, the California Historical Landmarks list, the Archaeological Determinations of Eligibility list, and the California State Historic Resources Inventory. The results of the records search for the APE are described below. Results of the records search for the previous version of the APE are included in Martinez and Nicolay (2017). For the IID/CVWD Study Area, SWCA reviewed the previous survey work, records searches and reports completed for this project in 2006, 2017, and 2020, as well as environmental reports and previous studies conducted in the vicinity provided by the City of La Quinta. Historical maps and aerial photographs were also examined for historic -era activity and a geoarchaeological assessment was conducted to assess the buried site sensitivity of the general area. Native American Outreach and Coordination SWCA assisted the City with Native American outreach in 2017. At that time, a Sacred Lands File search was conducted, and Native American groups and individuals identified to have interest in the project area were contacted. Results of this effort are outlined in Martinez and Nicolay (2017). Since then, the City has provided updated project information and cultural resources findings to Michael Mirelez of the Torres Martinez Desert Cahuilla Indians and Pattie Garcia -Plotkin of the Agua Caliente Band of Cahuilla Indians at their request. Mr. Mirelez provided feedback on resource protection measures in a meeting between HLD, the City, and SWCA on September 22, 2020 (Appendix B). This included a request for monitors to be present for both excavation and for observing areas where the excavated soils will be used as fill to ensure that no artifacts are inadvertently transferred to new portions of the project area. Mr. Mirelez indicated that excavations over 10 feet deep would not need to be monitored and that the two interested tribes could work together to provide monitors as needed (i.e., one monitor could represent both tribes). 9 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Ms. Garcia -Plotkin provided a summary of AB52 consultation and requested resource protection measures in a letter dated September 28, 2020 (Appendix B). She recommended preparation of an Avoidance and Mitigation Plan developed in consultation with the tribes, fencing around sensitive resources to ensure avoidance, hiring a compliance officer, and cultural sensitivity training for construction crews. Results of this consultation have been incorporated into the avoidance and mitigation measures recommended for this project, including preparation of a Monitoring and Mitigation Plan that will capture the details described above. Field Survey In 2019 and 2020, SWCA conducted a survey of the 117 acres added to the APE since 2017, including the 83 -acre flood control area along the CVWD Guadalupe Dike system and Jefferson Road on the north and west sides of the project, a 14 -acre linear extension along Madison Avenue, and 20 acres along Avenue 62 east of the project area to the CVWD Booster Pump. In addition, the BLM recommended that since recent flash flooding may have impacted the MMRD, a revisit to the 14 sites that constitute the district was also warranted for due diligence for the project, even though the sites are no longer within the ADI and will not be impacted by the project. In November 2019, SWCA Archaeologists Rebekka Knierim, M.A., RPA, and Olivia Romansik, B.A., surveyed 85 acres of the additional APE and revisited the 14 MMRD sites. In October and November 2020, SWCA archaeologists Omar Rice, M.A., and Mandi Martinez, M.A., RPA, surveyed the remaining 31 acres of the APE. The surveys consisted of 15-m transects and a handheld global positioning system (GPS) unit capable of submeter accuracy was used to document newly identified resources and identify the location of previously recorded sites. For previously recorded resources, site conditions were compared to the site records to confirm the accuracy of their site boundaries and descriptions. Site areas and cultural constituents were photographed using a digital camera. Site records for newly recorded resources were completed on California Department of Parks and Recreation (DPR) 523 series forms and submitted to the EIC. Updates to previously recorded sites were documented on DPR Continuation Sheets. All field notes, photographs, and records related to the current study are on file at the SWCA Pasadena, California, office. RESULTS Records Search Previously Conducted Cultural Resources Studies within the APE and within a 0.5 -mile (0.8 -km) radius of the APE In total, 37 previous cultural resources studies have been conducted within the APE and a 0.5 -mile (0.8 -km) radius of the APE. This number includes the results of the 2017 cultural resources study conducted by SWCA and the additional CHRIS records search conducted in 2019 to capture changes to the APE (Table 1; Figure 6a—d). Of the 37 studies, 17 include a portion of the APE. Table 1. Previously Conducted Cultural Resources Studies within the APE and the 0.5 -mile Radius around the APE EIC Report Title of Study Number Author: Affiliation Year Proximity to APE RI -00956 Environmental Impact Evaluation: An Archaeological Philip J. Wilke: Archaeological 1980 Outside Assessment of the Proposed Wastewater Treatment Research Unit, University of Plant in Section 34, T6S, R7E, SBBM in the Coachella Califomia (U.C.) Riverside Valley, Riverside County, California 10 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California EIC Report Title of Study Number Author: Affiliation Year Proximity to APE RI -00709 Archaeological Survey Report on The O'Neal Property, Roger J. Desautels: Scientific 1979 Within Coachella Valley, Riverside County, California Resource Surveys, Inc. RI -02144 Environmental Impact Evaluation: An Archaeological McCarthy, Daniel F.: Assessment of The Proposed Electric Line Extension Archaeological Research Unit, Along Monroe Street, Torres -Martinez Indian U.C. Riverside Reservation, Riverside County, Califomia 1987 Within RI -02277 Interim Cultural Resources Report Archaeological Love, Bruce, Harry Quinn, 2000 Within Testing and Mitigation Shea Homes Portion of the Coral Michael Hogan, and Mariam Mountain Project Near La Quinta Riverside County, Dandul; CRM California. RI -02276 Cultural Resource Inventory for Rancho La Quinta Dennis Gallegos, Roxana Phillips, and Carolyn Kyle: Westec Services Inc. 1987 Within RI -02760 Environmental Impact Evaluation: An Archaeological Arkush, Brooke; Archaeological 1990 Within Assessment of 1,280 Acres of Land Located South of Research Unit, U.C. Riverside Indio in Central Riverside County, Califomia RI -03489 Cultural Resources: La Quinta General Plan EIR Love, Bruce, Joan S. Schneider, 1992 Overview study, Gwyn Alcock, Dawn Reid, Kevin not mapped Hallaran, and Tom Tang: Archaeological Research Unit, U.C. Riverside RI -03406 An Archaeological Assessment of Comprehensive Keller, Jean A. 1991 Outside General Plan Amendment 347 RI -03829/ A Cultural Resources Survey for the Green Specific RI -06439 Plan, City of La Quinta Chace, Paul: The Keith 1994 Outside Companies RI -03830 A Cultural Resources Survey for the Travertine Point Chace, Paul: The Keith 1994 Outside Project, City of La Quinta Companies RI -03840/ Identification and Evaluation of Historic Properties: Love, Bruce: CRM RI -03841/ Coachella Valley Water District Groundwater Recharge RI -03842 Facility Project, Riverside County, California 1995 Outside RI -04003 A Cultural Resources Survey for the U.S. Bureau of Land Chace, Paul, and Charles E. 1996 Within Management Segment of the Jefferson Street Alignment Reeves: The Keith Companies, Project, City of La Quinta Costa Mesa, California RI -03844 Archaeological Monitoring Report: Groundwater Love, Bruce: CRM 1998 Within Recharge Basin Expansion Project, Coachella Valley Water District, Riverside County, California RI -04084 Cultural Resources Report: Coral Mountain Project, Love, Bruce and Bai "Tom" 1998 Outside Coachella Valley, Riverside County, California Tang: CRM RI -04624 A Class III Cultural Resources Inventory: 123 -Acre Coral Smith, David M.: The Keith 2003 Within Mountain Regional Park City of La Quinta, County of Companies, Costa Mesa, Riverside, California Califomia RI -04469 A Cultural Resources Survey for The U.S. Bureau of Chace, Paul: Paul G. Chace & 2001 Within Reclamation of the Madison Street Alignment Project, Associates City of La Quinta RI -05773 Final Report on Archaeological Testing and Mitigation: Love, Bruce, Michael Hogan, 2002 Outside The Trilogy at La Quinta Coral Mountain Project, Near Harry Quinn, Richard Norwood, the City of La Quinta, Riverside County, California and Mariam Dandul RI -05990 Historical/Archaeological Resources Survey Report, Tang, Bai, Michael Hogan, 2003 Within Coral Mountain Expansion, City of La Quinta, Riverside Mariam Dandul, Casey Tibbet, County, California Daniel Ballester, and Terri Jacquemain; CRM, Riverside, Califomia RI -06071 Final Cultural Resources Inventory for The Coachella Valley Management Plan, Riverside County, California Jay K. Sander, Roger D. Mason, Evelyn N. Chandler, and Cary D. Cotterman: Chambers Group, Inc. 2003 Within 11 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California EIC Report Title of Study Number Author: Affiliation Year Proximity to APE RI -06209 Identification and Evaluation of Historic Properties, Coral Mountain Reservoir Project, in the Coachella Valley, California Hogan, Michael, Bai "Tom" Tang, Mariam Dandul, Laura Hensley, and Daniel Ballester: CRM, Riverside, CA 2004 Within RI -06316 Historical/Archaeological Resources Survey Report, Tentative Tract Map No. 3248, City of La Quinta, Riverside County, California Tang, Bai, Michael Hogan, 2004 Outside and Matthew Wetherbee: CRM RI -06412 Archaeological Testing and Evaluation Report, Site Ca- Hogan, Michael: CRM Riv-7205/H (33-12956), Apn 766-110-016, City of La Quinta, Riverside County, California 2005 Outside RI -06491 Historical/Archaeological Resources Survey Report: The Enclave at La Quinta, Near the City of La Quinta, Riverside County, California Bai Tang, Michael Hogan, Matthew Wetherbee, John J. Eddy, and Daniel Ballester: CRM 2005 Outside RI -069421R1- Class 111 Cultural Resources Inventory and Evaluation, 07100/RI- Including Limited Subsurface Testing of Archaeological 07260 Site CA-RIV-7394, for the Proposed Travertine Development Project, City of La Quinta, Riverside County, California Nancy E. Sikes and Stephen 2006 Within O'Neil: SWCA RI -07831 Phase I Cultural Resources Assessment and Extended Phase 1 Testing of Approximately Six Miles for The Avenue 62 Trunk Sewer Project near Thermal, Riverside County, Riverside George, Joan: Applied Earth 2008 Outside Works RI -08105 Summary of Findings, Citywide Historic Resources Survey Update, City of La Quinta, Riverside County, California Tang, Bai "Tom" and Michael Hogan: CRM, Riverside, Califomia 2006 Within RI -08560 Final Report on Archaeological Monitoring of Earth Moving Activities: Tentative Tract No. 30023, Trilogy at Coral Mountain, Near (Now Within) the City of La Quinta, Riverside County, California Michael Hogan, Mariam Dandul, 2010 Outside Harry M. Quinn, Susan Kuzminsky, and Terri Jacquemain: CRM RI -08572 Emergency Data Recovery Investigations at CA-RIV- 7398 for the Dike 4 Groundwater Recharge Facilities Project in the Coachella Valley, California Vanessa Mirro and Dennis McDougall: Applied Earthworks, Inc. 2010 Within RI -09768 Cultural Resource Element City of La Quinta General Plan Love, Bruce and Bai "Tom" Tang: CRM 2000 Within RI -09997 Phase 11 Testing and Evaluation of Ca-Riv-3209 for the Avenue 64 Water and Sewer Project, Torres Martinez Desert Cahuilla Indian Reservation, Riverside County, California Joan George and Vanessa Mirro: Applied Earthworks, Inc. 2017 Overview study, not mapped RI -10342 Cultural Resources Technical Report City of La Quinta General Plan (2010 Update) Bai "Tom" Tang and Deirdre 2010 Within Encarnacion: CRM RI -10574 Archaeological Testing for Torres Martinez Reservation Water and Sewer Improvement Projects Ca -09-089 and Ca -12-E28 Riverside County, California Ronald V. May, Kiley Wallace, 2015 Outside and Michelle D. Graham: Legacy 106, Inc. Identification and Evaluation of Historic Properties Coachella Valley Water District Recharge Basin, Coachella Valley, Riverside County, California Hogan, Michael, Bruce Love, Bai "Tom" Tang, Josh Smallwood, Laura Hensley Shaker, and Daniel Ballester: CRM, Riverside, California 2004 Within 12 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California • } RI -01712 1 RI -00713 IhRI-05865 RI -06622 RI -05842 RI -a3655 ,4 VFJ s5a 56 _ -3 7 ly r 4 LaQuinta I++ Martinez Mountain N ti ii Gravel Pit yOr lY :RI -0RI.07.100 6942 .i 620960 28 29 >< 341 RI -03829 RI -06439 RI Lagena 0 Area of Potential Effect 0 Township and Range ® Additions to APE {2018-2020) IJSGS 7.5 -minute Quadrangle Area of Direct Impact Bureau of Land Management i J, Record Search 0.5 -mile Bureau o1 Reclamation Previous Reports) Studies A 12.❑❑0 .(1(4) 250 Meters 11550 7.5-mnute Topearapelo Quadrangles 44014174 County. CA NAD 15031JTM Zone 114 117144202/ SWCA 511444104 544.1 Pasadena, Ca iMn14 41105 Prone: 626.210.504. Fax- 626.2.10 D607 Figure 6a. Previously conducted cultural resources studies within the project APE and the 0.5 - mile radius of the APE. 13 3E Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California fl 27 AVENUE 1 0 • ■11 RI -04469 .Masa12 RI -06996 RI -`3766 -OS 3yI3 rt VJ 100 RI -04469 RI -02277'' RI -06779, RI -04064 RI -13042 R1-01276 IRI -0857 00 4'2 60 RI -036 RI -00966 w O RI -00709 et - Swimming p4D{ ni Lege nn Q Area of Potential Effect 0 Previous Reports !Studies ® Additions to APE (2019-n20Y 0 Township and Range - Area of Direct Impact USGS 7.5 -minute quadrangie r� Record Search 0.5 -mile Bureau of Reclamation PIPELINE -76 AVENUE 2E 0 1000 2.000 Feel Meters 0 250 500 USGS 7.5 -minute Topographic Qeedranglee N Riur_ �e county, CA .1\ NAD 18831}TM Zone 110 1111012021 1 12.000 SWCA enneam INTALca1.uuntns 51 West Dayton Street Pasadena. caIrcerNe 91105 Phone: 628.280.0587 Fee 629229 D607 11SACS o Figure 6b. Previously conducted cultural resources studies within the project APE and the 0.5 - mile radius of the APE. 14 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California —_– R1-02769 7— - RI -03A30 RI -06942 RI -07100 RI -07260 Legend Area of Potential Effect ll Township and Range • Additions to APE (2019-2020) 0 USGS 7.5 -minute Quadrangle - Area of Direct Impact Bureau of Land Management i Record Search 0.5 -mile State of California n Previous Reports 1 Stud 1.000 250 2000 Feel Meters 500 USGS 7 5 -minute Topographic Quadrangles jN Rruerside Courcy. CA ll NAD 1983 UTM Zone 1IN 1111012721 1 12.000 SWCA enneeNHernnl. carxsuuAAT/ 51 west oa7aa Street Pasadena. Caltrorma 91105 Pnona: 626.240.0581 Fax • 829.2400907 WOW Figure 6c. Previously conducted cultural resources studies within the project APE and the 0.5 - mile radius of the APE. 15 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California RI -03844 RI40956 RI -06773 RP -04080 RI -08572 1 R1-02277 RI -04003 RI -03840 RP -03a41 RI -03842 RI -072 RI -0 Station 11. 3+ . jl 9758 7>` 4.12 7R•7E • T7,y5., R7E RI -06209 RI -13042 R1-08680 RI -10574 R1-02144 RI -09997 a RI -00709. R1-02270 RI -09491 RI -07871 r� ■ TORRE5,.' Torres (Site) . IN•3 I A•N k rf n `• `\ Toro Cern Legend Area of Potential Effect Q Township and Range ® Additions to APE (20132020) 0 USGS 7.5 -minute Quadrangle - Area of Direct Impact Bureau of Indian Affairs rJ Record Search 0.5 -mile IN Bureau of Land Management ✓ i Previous Reports 1 Studies Bureau of Reclamation N A 1 12.000 1.000 250 2.000 Feel Meters 500 USGS 7.0 -minute Topographic Quadrangles Riverside county, CA NAD 19831}TM Zone 11N 1111 D/2021 Well 1 1 SWCA INMOMMermucawuuntn 51 West 0970001 Street Pasadena. cairccrNa 51105 Pnone: 928.280.0587 Fer 62922-0 D607 Ne COM Figure 6d. Previously conducted cultural resources studies within the project APE and the 0.5 - mile radius of the APE. 16 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California O'Dowd, R 2003 RI 10709 Love, B 1998 Staten N� Ir, ilk RI -02144 RI,09997 RI -08560 RI -05773 RI -04084 RI -02277 RI -06209 RI -10574 Legend Q Study Area USGS 7.5 -minute Quadrangle r7J7CJ Record Search 0.5 -mile Bureau of Indian Affairs I¢Travertine APE Bureau of Land Management Q Previous Reports (Studies Bureau of Reclamation Q Township and Range 2_200 500 4.009 Feel Meters 0,000 USGS 75 -minute Topographic Quadrangles N Riverside County, CA - Page of NAD 1983 UTM Zone 11N 2/9/2020 1.24.000 SAA/CA ENVIIONMEHIM C0/4181.1151119 51 West Dayton Street Pasadena. ca worn. 81105 Phalan 620240 9587 For 028 240 Figure 7. Previously conducted cultural resources studies within the IID/CVWD Study Area and a 0.5 -mile radius of the IID/CVWD Study Area. 17 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Previously Conducted Cultural Resources Studies within the IID/CVWD Study Area and 0.5 mile Radius In total, 20 previous cultural resources studies have been conducted within the IID/CVWD Study Area. This number includes the results of the 2017 and 2019 CHRIS records searches of the nearby APE, as well as cultural resources reports provided by the City of La Quinta for the study area vicinity (Table 2). The studies cover the majority of the study area; however, not all studies are mapped due to lack of available shape files and adequate mapping in some studies (Figure 7). The titles, authors/affiliation, and years of the reports were not identified for two of the previous cultural resources studies: RI -04052 and O'Dowd, P. 2003. Table 2. Previously Conducted Cultural Resources Studies within the IID/CVWD Study Area EIC Report Title of Study Author: Affiliation Year Proximity to Number APE RI -00709 Archaeological Survey Report on The O'Neal Property, Roger J. Desautels: Scientific Coachella Valley, Riverside County, California Resource Surveys, Inc. 1979 Within RI -02144 Environmental Impact Evaluation: An Archaeological Assessment of The Proposed Electric Line Extension Along Monroe Street, Torres -Martinez Indian Reservation, Riverside County, California McCarthy, Daniel F.: Archaeological Research Unit, U.C. Riverside 1987 Outside RI -02276 Cultural Resource Inventory for Rancho La Quinta Dennis Gallegos, Roxana 1987 Within Phillips, and Carolyn Kyle: Westec Services Inc. RI -02277 Interim Cultural Resources Report Archaeological Testing and Mitigation Shea Homes Portion of the Coral Mountain Project Near La Quinta Riverside County, California. Love, Bruce, Harry Quinn, 2000 Outside Michael Hogan, and Mariam Dandul; CRM RI- Archaeological Monitoring Report: Groundwater Love, Bruce: CRM 03844/Love, Recharge Basin Expansion Project, Coachella Valley B 1998 Water District, Riverside County, California 1998 Witihn RI -03489 Cultural Resources: La Quinta General Plan EIR Love, Bruce, Joan S. Schneider, 1992 Overview Gwyn Alcock, Dawn Reid, Kevin study, Hallaran, and Tom Tang: not mapped Archaeological Research Unit, U.C. Riverside RI -04052 N/A N/A N/A Outside RI -04084 Cultural Resources Report: Coral Mountain Project, Coachella Valley, Riverside County, California Love, Bruce and Bai "Tom" 1998 Outside Tang: CRM RI -05773 Final Report on Archaeological Testing and Mitigation: The Trilogy at La Quinta Coral Mountain Project, Near the City of La Quinta, Riverside County, California Love, Bruce, Michael Hogan, 2002 Outside Harry Quinn, Richard Norwood, and Mariam Dandul RI -06209 Identification and Evaluation of Historic Properties, Coral Mountain Reservoir Project, in the Coachella Valley, California Hogan, Michael, Bai "Tom" Tang, 2004 Outside Mariam Dandul, Laura Hensley, and Daniel Ballester: CRM, Riverside, CA RI -06491 Historical/Archaeological Resources Survey Report: The Enclave at La Quinta, Near the City of La Quinta, Riverside County, Califomia Bai Tang, Michael Hogan, 2005 Outside Matthew Wetherbee, John J. Eddy, and Daniel Ballester: CRM RI -07831 Phase I Cultural Resources Assessment and Extended Phase I Testing of Approximately Six Miles for The Avenue 62 Trunk Sewer Project near Thermal, Riverside County, Riverside George, Joan: Applied Earth 2008 Outside Works RI -08105 Summary of Findings, Citywide Historic Resources Survey Update, City of La Quinta, Riverside County, California Tang, Bai "Tom" and Michael Hogan: CRM, Riverside, California 2006 Within 18 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California EIC Report Title of Study Number Author: Affiliation Year Proximity to APE RI -08560 Final Report on Archaeological Monitoring of Earth Moving Activities: Tentative Tract No. 30023, Trilogy at Coral Mountain, Near (Now Within) the City of La Quinta, Riverside County, California Michael Hogan, Mariam Dandul, 2010 Outside Harry M. Quinn, Susan Kuzminsky, and Terri Jacquemain: CRM RI -09768 Cultural Resource Element City of La Quinta General Plan Love, Bruce and Bai "Tom" Tang: 2000 Within CRM RI -09997 Phase 11 Testing and Evaluation of Ca-Riv-3209 for the Avenue 64 Water and Sewer Project, Torres Martinez Desert Cahuilla Indian Reservation, Riverside County, California Joan George and Vanessa 2017 Outside Mirro: Applied Earthworks, Inc. RI -10342 Cultural Resources Technical Report City of La Quinta General Plan (2010 Update) Joan George and Vanessa Mirro: 2017 Within Applied Earthworks, Inc. RI -10574 Archaeological Testing for Torres Martinez Reservation Water and Sewer Improvement Projects Ca -09-089 and Ca -12-E28 Riverside County, Califomia Bai "Tom" Tang and Deirdre 2010 Outside Encamacion: CRM N/A Identification and Evaluation of Historic Properties, Coachella Valley Water District Recharge Basin, Coachella Valley, Califomia Michael Hogan, Bruce Love, Bai "Tom" Tang, Josh Smallwood, Laura Hensley Shaker, and Daniel Ballester: CRM 2004 Outside O'Dowd, P. 2003 N/A N/A 2003 Within Previously Recorded Cultural Resources within the APE and a 0.5 -mile Radius of the APE In total, 98 cultural resources have been previously documented within the APE and a 0.5 -mile (0.8 -km) radius, including 56 sites (Table 3; Figure 8a—d) and 42 isolates (Table 4; Figure 9a—d). Of these, 37 resources (21 sites and 16 isolates) are within the APE, and seven resources (two sites and five isolates) are within the ADI. Six of the 21 sites within the APE have unknown eligibility or have not been evaluated (P-33-001334, P-33-001340, P-33-001351, P-33-013296, P-33-013297, and P-33-014987), including one site (P-33-001340) that is partially within the ADI. Five sites are recommended not eligible for the NRHP or CRHR (P-33-001343, P-33-003875, P-33-003876, P-33-005319, and P-33-005321), including one site within the ADI (P-33-001343). Ten sites are recommended eligible (P-33-001331, P-33-003872, P -33- 003873,P -33 -003874,P -33 -005323,P -33 -014844,P -33 -014845,P -33-014846,P-33-014847, and P-33- 014988), none of which are in the ADI. The 16 isolates are not eligible for the NRHP or CRHR. Table 3 lists previously documented sites within the APE and within the 0.5 -mile (0.8 -km) radius of the APE, as well as sites within the ADI. Table 4 lists previously documented isolates within the APE and within 0.5 mile (0.8 km) of the APE, as well as those within the ADI. The locations of all previously recorded sites and isolates from the combined 2017 and 2019-2021 investigations are shown in Figures 8a to 8d and 9a to 9d, respectively. 19 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Table 3. Previously Recorded Cultural Resources Sites within the Area of Potential Effects and a 0.5 -mile Radius of the Area of Potential Effects Primary Number Trinomial Resource Type Temporal Affiliation Resource Description Recording Year (Name, Affiliation) Proximity to Proximity to APE ADI Eligibility Status P-33-000193 CA-RIV-0193 Site Prehistoric Petroglyphs 1973 (Shepard); 1987 (D.F. McCarthy, Archaeological Research Unit, U.C. Riverside [ARU]); 1998 (H. Quinn, CRM); 2000 (B. Love, and Bai Tang, CRM) Outside Outside Unknown eligibility P-33-001331 CA-RIV-1331 Site Prehistoric Habitation site, trail 1989 (B. S. Arkush, ARU) Within Outside Eligible (contributor to MMRD) P-33-001334 CA-RIV-1334 Site Prehistoric Ceramic scatter 1972 (Craib); 2003 (Ballester: CRM) Within Outside Unevaluated P-33-001337 CA-RIV-1337 Site Prehistoric Habitation site 1972 (P.J. Wilke) Outside Outside Unknown eligibility P-33-001338 CA-RIV-1338 Site Prehistoric Habitation site and 1972 (P.J. Wilke) lithic scatter Outside Outside Unknown eligibility P-33-001339 CA-RIV-1339 Site Prehistoric, historic Ceramic and lithic 1972 (Wilke, P.J.); scatter 1980 (Wilke, P.J., ARU); 2008 (M. Hogan) Outside Outside Unknown eligibility P-33-001340 CA-RIV-1340 Site Prehistoric Lithic scatter, ceramic scatter 1998 (Bruce Love, CRM, Within Riverside, California) Within Unevaluated P-33-001343 CA-RIV-1343 Site Prehistoric Cremation, sherd scatter 1972 (P.J. Wilke); 1980 (P.J. Wilke); 1998 (Bruce Love, CRM); 2003 (D. Ballester, CRM); 2010 (M. Hogan and D. Ballester, CRM) Within Within Not eligible P-33-001344 CA-RIV-1344 Site Prehistoric Campsite, sherd scatter 1972 (P.J. Wilke) Outside Outside Unknown eligibility P-33-001346 CA-RIV-1346 Site Prehistoric Lithic scatter 1972 (J. Craib); 1981 (J.D. Swenson); 2002 (D. Ballester) Outside Outside Unknown eligibility P-33-001347 CA-RIV-1347 Site Prehistoric Small raised dune 1972 (J. Craib); 1981 (J. D. Swenson) Outside Outside Unknown eligibility P-33-001348 CA-RIV-1348 Site Prehistoric Rock shelter 1972 (J. Craib); Outside Outside Unknown eligibility 1989 (B.S. Arkush, ARU) 20 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Primary Number Trinomial Resource Temporal Resource Recording Year Proximity to Proximity to Type Affiliation Description (Name, Affiliation) APE ADI Eligibility Status P-33-001349 CA-RIV-1349 Site Prehistoric Rock shelter 1972 (J. Craib); 1989 (B.S. Arkush, ARU); 2006 (S. O'Neil, SWCA) Outside Outside Eligible (contributor to MMRD) P-33-001351 CA-RIV- 1341/1351 Site Prehistoric Ceramic scatter 1972 (P.J. Wilke); 1980 (P.J. Wilke); 1998 (Bruce Love, CRM); 2003 (D. Ballester, CRM) Within Outside Unknown eligibility P-33-001715 CA-RIV-1715 Site Prehistoric Rock art panels 1998 (H. Quinn, CRM) Outside Outside Unknown eligibility P-33-001717 CA-RIV-1717/H Site Prehistoric, Ceramic and lithic 1979 (T.M. Kearns, Outside Outside Unknown eligibility historic scatter Scientific Resource Surveys, Inc., Santa Ana, California); 1998 (B. Love, B. Tang, H.M. Quinn and R.H. Norwood, Cultural Resources Report, Coral Mountain Project, Riverside, California) P-33-003872 CA-RIV-3872 Site Prehistoric Bedrock milling 1990 (B.S. Arkush, ARU); Within Outside Eligible (contributor station 2006 (S. O'Neil, SWCA) to MMRD) P-33-003873 CA-RIV-3873 Site Prehistoric One milling slick 1990 (B.S. Arkush, ARU); Within Outside Eligible (contributor 2006 (S. O'Neil, SWCA) to MMRD) P-33-003874 CA-RIV-3874 Site Prehistoric Ceramic scatter 1990 (A. Duffield, BLM, Within Outside Eligible (contributor Palm Springs, California); to MMRD) 1990 (B.S. Arkush, ARU); 2006 (S. O'Neil, SWCA) P-33-003875 CA-RIV-3875 Site Prehistoric Ceramic scatter 1990 (B.S. Arkush, ARU) Within Outside Not eligible P-33-003876 CA-RIV-3876 Site Prehistoric Ceramic scatter 1990 (B.S. Arkush, ARU) Within Outside Not eligible P-33-005213 CA-RIV-5213 Site Prehistoric Ceramic scatter 1987 (D. Gallegos, C. Kyle, Outside Outside Unknown eligibility R. Phillips, and A. Pigniolo, WESTEC Services) P-33-005214 CA-RIV-5214 Site Prehistoric Ceramic scatter 1987 (D. Gallegos, C. Kyle, Outside Outside Unknown eligibility R. Phillips, and A. Pigniolo, WESTEC Services); 1998 (B. Love, CRM) P-33-005319 CA-RIV-5319 Site Prehistoric Ceramic scatter, 2003 (D. Ballester, N/A); Within Outside Not eligible chipped stone, and 1994 (W. McManis, The a granite mano Keith Companies [TKC]) P-33-005320 CA-RIV-5320 Site Prehistoric Ceramic scatter 1994 (W. McManis, TKC) Outside Outside Not eligible 21 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Primary Number Trinomial Resource Temporal Resource Type Affiliation Description Recording Year (Name, Affiliation) Proximity to Proximity to APE ADI Eligibility Status P-33-005321 CA-RIV-5321 Site Prehistoric Hearth 1994 (W. McManis, TKC) Within Outside Not eligible P-33-005322 CA-RIV-5322 Site Prehistoric Milling slick 2006 (S. O'Neil, SWCA); Outside Outside Eligible (contributor 1994 (W. McManis, TKC) to MMRD) P-33-005323 CA-RIV-7394 Site Prehistoric Milling slick 2006 (S. O'Neil, SWCA); Within Outside Eligible (contributor 1994 (W. McManis, TKC) to MMRD) P-33-005324 CA-RIV-5324 Site Prehistoric Milling slick 1994 (P.G. Chace and C. Outside Reeves, TKC) Outside Unknown eligibility P-33-008028 CA-RIV-5977 Site Prehistoric Ceramic scatter 1997 (B. Love, CRM) Outside Outside Unknown eligibility P-33-008331 — Site Prehistoric, Ethnographic 1968 (Wood: N/A) Outside Outside Unknown eligibility historic Village Site P-33-008364 CA-RIV-6098 Site Prehistoric Ceramic scatter 1998 (B. Love, CRM) Outside Outside Unknown eligibility P-33-008365 CA-RIV-6099 Site Prehistoric Ceramic scatter 1998 (B. Love, CRM) Outside Outside Unknown eligibility P-33-008366 CA-RIV-6100 Site Prehistoric Partially fired clay, 1998 (B. Love, CRM) and hearth Outside Outside Unknown eligibility P-33-008367 CA-RIV-6101 Site Prehistoric Ceramic scatter 1998 (B. Love, CRM) Outside Outside Unknown eligibility P-33-008368 CA-RIV-6102 Site Prehistoric Ceramic scatter 1998 (B. Love, CRM) Outside Outside Unknown eligibility P-33-008369 CA-RIV-6103H Site Historic Irrigation system 1998 (B. Love, CRM) Outside Outside Unknown eligibility P-33-008370 CA-RIV-6104 Site Prehistoric Ceramic scatter 1998 (B. Love, CRM) Outside Outside Unknown eligibility P-33-008371 CA-RIV-6105 Site Prehistoric Ceramic scatter 1998 (B. Love, CRM) Outside Outside Unknown eligibility P-33-008374 CA-RIV-6108 Site Prehistoric Ceramic scatter 1998 (B. Love, CRM) Outside Outside Unknown eligibility P-33-008379 CA-RIV-6113 Site Prehistoric Ceramic scatter 1998 (B. Love, CRM) Outside Outside Unknown eligibility P-33-008380 CA-RIV-6114 Site Prehistoric Ceramic scatter 1998 (B. Love, CRM) Outside Outside Unknown eligibility P-33-008386 CA-RIV-6120 Site Prehistoric Ceramic scatter 1998 (B. Love, CRM) Outside Outside Unknown eligibility P-33-009545 CA-RIV-6404 Site Prehistoric Petroglyphs 1998 (H. Quinn, CRM) Outside Outside Unknown eligibility P-33-012956 CA-RIV-7205/H Site Prehistoric Ceramic and lithic 2005 (D. Ballester, CRM) Outside scatter Outside Not eligible P-33-013296 CA-RIV-7398 Site Prehistoric Cremation, sherd 2003 (D. Ballester, CRM) Within scatter Within Unevaluated P-33-013297 CA-RIV-7399 Site Prehistoric Ceramic scatter 2003 (J.J. Eddy, CRM) Within and a metate fragment Within Unevaluated 22 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Primary Number Trinomial Resource Temporal Resource Recording Year Proximity to Proximity to Type Affiliation Description (Name, Affiliation) APE ADI Eligibility Status P-33-014844 CA-RIV-7911 Site Prehistoric Milling slicks 2004 (P. Paige and Within Outside Eligible (contributor M. Tuma, SWCA) to MMRD) P-33-014845 CA-RIV-7912 Site Prehistoric Milling station 2004 (P. Paige and Within Outside Eligible (contributor M. Tuma, SWCA) to MMRD P-33-014846 CA-RIV-7913 Site Prehistoric Milling station 2004 (P. Paige and Within Outside Eligible (contributor M. Tuma, SWCA) to MMRD P-33-014847 CA-RIV-7914 Site Prehistoric Milling station 2005 (M. Tuma, M. Cruz, Within Outside Eligible (contributor and S. O'Neil, SWCA) to MMRD P-33-014985 CA-RIV-7960 Site Prehistoric Ceramic scatter 2005 (S. O'Neil, and Outside Outside Not eligible K. Hunt, SWCA) P-33-014986 CA-RIV-7961 Site Prehistoric Ceramic scatter 2005 (S. O'Neil, and Outside Outside Not eligible K. Hunt, SWCA) P-33-014987 CA-RIV-7962 Site Prehistoric Rock cairn 2005 (S. O'Neil, and Within Within Unevaluated K. Hunt, SWCA) P-33-014988 CA-RIV-7963 Site Prehistoric Milling slicks 2006 (S. O'Neil, and Within Outside Eligible K. Hunt, SWCA) P-33-017247 N/A Site Prehistoric Cremation 2002 (Ballester: CRM) Outside Outside Unknown Table 4. Previously Recorded Isolates within the Area of Potential Effects and a 0.5 -mile Radius of the Area of Potential Effects Primary Number Trinomial Resource Temporal Resource Type Affiliation Description Recording Year (Name, Affiliation) Proximity to Proximity to Eligibility Status APE ADI P-33-008919 N/A Isolate Prehistoric Tizon Brown ware 1994 (W. McManis, The Within Outside Not eligible pottery Keith Companies [TKC]) P-33-008920 N/A Isolate Prehistoric Clamshell fragment 1994 (W. McManis, TKC) Within Outside Not eligible P-33-008921 N/A Isolate Prehistoric Clamshell fragment 1994 (W. McManis, TKC) Within Outside Not eligible P-33-008922 N/A Isolate Prehistoric Clamshell fragment 1994 (W. McManis, TKC) Outside Outside Not eligible P-33-008955 N/A Isolate Prehistoric Brown ware sherds 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-008956 N/A Isolate Prehistoric Brown ware sherds 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-008957 N/A Isolate Prehistoric Brown ware sherds 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) 23 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Primary Number Trinomial Resource Temporal Resource Type Affiliation Description Recording Year (Name, Affiliation) Proximity to Proximity to Eligibility Status APE ADI P-33-008958 N/A Isolate Prehistoric Brown ware sherds 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-008959 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-008960 N/A Isolate Prehistoric Brown ware sherds 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-008961 N/A Isolate Prehistoric Brown ware sherds 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-008962 N/A Isolate Prehistoric Brown ware sherds 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-008963 N/A Isolate Prehistoric Brown ware sherds 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-008964 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-008967 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-008968 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-008969 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-008978 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-008979 N/A Isolate Prehistoric Granite mano 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-008980 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-009000 N/A Isolate Prehistoric Brown ware sherds 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-009001 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-009002 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-009003 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) 24 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Primary Number Trinomial Resource Temporal Resource Type Affiliation Description Recording Year (Name, Affiliation) Proximity to Proximity to Eligibility Status APE ADI P-33-009004 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Outside Outside Not eligible Riverside, California) P-33-011347 N/A Isolate Prehistoric Brown ware sherd 1990 (B. Arkush: ARU, Within Within Not eligible University of California [U.C.] Riverside) P-33-011348 N/A Isolate Prehistoric Brown ware sherd 1990 (B. Arkush: ARU, U.C. Within Within Not eligible Riverside) P-33-011349 N/A Isolate Prehistoric Brown ware sherd 1990 (B. Arkush: ARU, U.C. Within Within Not eligible Riverside) P-33-011350 N/A Isolate Prehistoric Brown ware sherd 1990 (B. Arkush: ARU, U.C. Within Within Not eligible Riverside) P-33-011351 N/A Isolate Prehistoric Quartz flake 1990 (B. Arkush: ARU, U.C. Within Outside Not eligible Riverside) P-33-011352 N/A Isolate Prehistoric Brown ware sherd 1990 (B. Arkush: ARU, UC Within Outside Not eligible Riverside) P-33-012259 N/A Isolate Prehistoric Brown ware sherds 2002 (J. Sander, Chambers Outside Outside Not eligible Group) P-33-014852 N/A Isolate Prehistoric Unknown Unknown Outside Outside Not eligible P-33-014853 N/A Isolate Prehistoric Flake tool 2005 (S. O'Neil, and K. Hunt, Within Within Not eligible SWCA) P-33-014854 N/A Isolate Prehistoric Tizon Brown ware 2005 (S. O'Neil, and K. Hunt, Outside Outside Not eligible fragment SWCA) P-33-014856 N/A Isolate Prehistoric Tizon Brown ware 2005 (S. O'Neil, and K. Hunt, Within Outside Not eligible fragment SWCA) P-33-014857 N/A Isolate Prehistoric Tizon Brown ware 2005 (S. O'Neil, and K. Hunt, Within Outside Not eligible fragment SWCA) P-33-014858 N/A Isolate Prehistoric Rock alignment 2005 (S. O'Neil, and K. Hunt, Within Outside Not eligible SWCA) P-33-014989 N/A Isolate Prehistoric Tizon Brown ware 2004 (P. Paige, and Outside Outside Not eligible sherd M. Tuma, SWCA) P-33-017754 N/A Isolate Prehistoric Shaped fragment of 2002 (Robert Porter, CRM) Within Outside Not eligible pumice P-33-017755 N/A Isolate Historic Ceramic scatter 2002 (Robert Porter, CRM) Outside Outside Not eligible P-33-017756 N/A Isolate Prehistoric Manos and metates 2002 (Robert Porter, CRM) Within Outside Not eligible 25 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California r • • l! �I AVENUE ' 1. 5& i 11 a t 7 11 P33-012431 t` L V it r. 1 ake Cau'sl : ;;}1 10 County Pa }} P-3ia-0017t5 La 4umta Martinez Mountain x341 502 / 32 CA-RIV- P-1 I / `y--~) 1 1 . r n."4— P33-005214 P43.005213 P-39.001711 ,<$ P33-005360 P-33.000153 P-33-013297',,, 33-012956 --- Legend D Area of Potential Effect Q Township and Range ® Additions to APE (2019.2020) D LAGS 7.5 -minute Quadrangle Area of Direct Impact Bureau of Land Management rn Record Search 0.5.mile Bureau of Reclamation . Previously Recorded Resource N A 1-12.000 1,0«1 240 2.000 Feet Meters 800 USGS 7.5-mnote Topographic Quadrangles Riverside County. CA- Page 1 914 NATI 1888 UTM 20119 1114 1 111 902 0 2 1 P33-013296 SWCA lM9 ONHernnl.catwuwo 51 Weal oaymn Street Pasadena. CaIrcornea 81105 Phone: 626.240.0587 Fey: 620.240 0607 Figure 8a. Previously recorded sites within the project APE and the 0.5 -mile radius of the APE. 26 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California p 27 AVENUE - - —6¢ ii II sulks 11 1 ■ —_�' ■.1 • r ■ ■ 58 J 2E iZ o l0 ° 27 - 70 PIPELINE 2 -76 AVENUE 1 - 34 O Zr Ci Swimming Poot[]' Legend 0 Area of Potential Effect © Previously Recorded Resource Additions to APE (2019-2020) Q Township and Range Area of D rect Impact 0 USGS 7.5 -minute Quadrangle 0 Record Search 0.5 -mile MI Bureau of Reclamation N A 1 12.000 2 •:]1111 rep! Meters a 250 sod USGS 7.5 -.mote Topographic Quadrangles Riverside County. CA - Page 2 e14 NATI 1582 U TM 20119 1111 11210.2021 SWCA IMIRanHnnAL cOfeuuntn 51 Weal Dayton Street 7aas0cna. CaIIferNa 51105 Phone: 928.20115587 Fee 620022-0e 0607 N Figure 8b. Previously recorded sites within the project APE and the 0.5 -mile radius of the APE. 27 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California P33-013256 --- IL_ 4Wa 633.014987 I P33-005321 -i- 4 P33-003874 P33-006323� P-33.014988 P33.303873 P33-014848 P33-003872 \ P ': 322 • if3-614846 P-33-015642 -- Legend 0 Area of Potential Effect Q Township and Range ® Additions [GAPE (2015.2020) 11SGS ? 5-rnmute Quadrangle Area of Direct Impact Bureau of Land Management Record Search 0.5•mile Slate of California . Previously Recorded Resource N A 1 12.000 250 2.000 Feet Meters 506 USGS 7.0-.mtute Topographic Quadra ogles Nirerside County. CA - Page 3 of 4 NAG 19830TM Yong 11N 1111912021 SWCA 1NO ONMMnrnlcatarunnn 51 west Dayton street Pasadena. CaIlfcnua 91105 Phone: 528.240.0587 Fax: 820.245 D807COM Figure 8c. Previously recorded sites within the project APE and the 0.5 -mile radius of the APE. 28 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California P-33-008368 0,P-33-0138309 P-33.008372 -- 00028 -- P 33 008366 P43-008374 — P-33-017247 1 P-33-008367 P-33-000371 P-33-008365 --- P33-008364 '• r I P-33-001334 P-33-001343 P43.008370 !I P33-00080 • .1P -33-0083M 1/ — • pari • tr.._....«..1xr..rr..uc.SWAll Station 1!. 3. 31 3i dl ,1 d P461344i -ji 3i A MS -MUT T 31 <� 3f �11.-1 • f _•• P43.063876 P-33-093 75 • — C -HIV-7354 P-33-001351 L P43A-15G42 �gg 41 ffi m j it it T65. R7E _872 178 R7E )P-33-008331 c. T0RR7:' Torres (Site) l N 1 A`N f Toro Cern - I'I P-33-005323 Legend ElArea of Potential Effect Q Township and Range ® Additions to APE (2019.2020) D LASGS 7.5 -minute Quadrangle - Area o4 Direct Impact • Bureau of Indian Affairs I" Record Search 0.5•mile MI Bureau of Land Management . Previously Recorded Resource • Bureau of Reclamation N A 1 12.000 1.0 0 250 7.000 Feet Meters sot, USGS 7.5-mnute Topographic Cuadraogles liioerside County. CA - Page 4 oF4 NAO. 158311 TM 20115 116 117192021 Well SWCA rnnlanHermucarouunnn 51 West 0ayfon Street Noreena. CaIlnrNa 51105 Phone: 826240.0587 Fer 62992-0e 0607 N Figure 8d. Previously recorded sites within the project APE and the 0.5 -mile radius of the APE. 29 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California • AVENUE r. 11 ,t t ..ake Cahuil County Par Lir 19 a • I' — `7 7 1 /1 \ 28 11 It La Quints Marcinez Mountain 1! Iil ii li *ti: 11 1i Li f1 11 ti\ rL,=-=:= • It h ,` 1i / ■ I{ f N — = Ire_. ti\ _ P33 09003 0 �tiv0i P33-00900 Q�' -/ _ /Qrsr •z.-1 so - f 1�. P33-002920 �4 , a-- --- — P35-=0118919 t� L+ Legend 0 Area of Potential Effect Q Township and Range ® Additions to APE (2019-20201 D USGS 7.5 -minute Quadrangle Area of Direct Impact MI Bureau of Land Management i1 Record Search 0.5 -mile Bureau of Reclamation 0 Previously Recorded Isolate 1 12.000 1.0710 200 Meters 500 USGS 7.2 -minute Topographic Quadrangles Riverside Courtly, CA NAD 1983 t}TM Zone 110 11/1972021 1 SWCA INMOMMLNTAO carnuuAtm 51 LVea Dayton Street Pasadena. 091110rnla 91105 Pnona 528211.0567 Fax:M.' 1e 0607 Figure 9a. Previously recorded isolates within the project APE and the 0.5 -mile radius of the APE. 30 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California 0 3 O 11 . 11 ■ 11 A VENUE 1 Indio 27 ▪ —60 ro ■ • 2E ^ r� , a 0' 5' r 5' h •F• ■ f Mg co m 70 Swimming Poolfl 34 P43-008868 Legend 0 Area of Potential Effect 0 Previously Recorded Isolate ® Additions to APE [2019-202[}1 Q Township and Range Area of Direct Impact 0 USGS 7.5 -minute Quadrangle Record Search 0.5 -mile Bureau of Reclamation I. • PIPELINE ,---76 AVENUE 2E 0 1000 200 Meters 500 USGS 7.5 -minute Topographic Quadrangles N Riverede county, CA .1\ NAp 1000 UTM Zone 110 11/1972021 1 12.000 7 SWCA lnnlannlermu carouun■o 51 West Dayton Street Pasadena. caIrcerNe 91105 Pnona 028.280.0587 Fee 629229 5607 NSACS COM Figure 9b. Previously recorded isolates within the project APE and the 0.5 -mile radius of the APE. 31 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California / 0, 2 .R S TBS, R7,E_ y .• T7S, R7El_ 7 11 • •ti r' c27 1.t Y 'I 4WD GT P33-011350 &— P33-014853 P-33-011348 4 40-/ J r S-33.011347 Legend 0 Area of Potential Effect Q Township and Range ® Additions to APE (2019-2020) D USGS 7.5 -minute Quadrangle Area of Direct Impact IN Bureau of Land Management Record Search 0.5 -mile mg State of California ima ® Previously Recorded Isolate '82A I 1.000 2.00Fe0 el Meters 0 250 500 USGS 7.0-ninute Topographic Quadrangles N Riverside County, CA )1\ NA0 10031}TM Zone 110 1111912021 1 12.000 SWCA 1101RalH11nAL cOMfuLrntn 51 Lied Dayton S0ee1 Pae8ee119. California 51105 Phone: 928.2.10.0597 Fel 6202-05 0 067 9 Figure 9c. Previously recorded isolates within the project APE and the 0.5 -mile radius of the APE. 32 - 82 T75, R7E TORRES,•' f' ee ^^~ Torres (Site) IN?I AIN 1.7or❑ Cern LBM —7 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California { ; — P-33.008964 '"� P33.008963 p -34308955--- 0 P-33-008956 P33-017755 Q P33-011.3 lV ▪ P-33-008967 P-33.008962 o-� P-33-008961 GP— P-33-008960 13,--P-33-008959 Q. 1? -33.006958 P33-008957 P-33-017756 Stationz.• 3f. � 31 i• 31 if 41 3 a 9 3 3 3 • 9 M 5 P-33-0088 (3— P-33-008979 (3— P-33-008978 Gi P-33-008966 t 3 1• P33.008988 P33.017754 100 i i r T :0 1 n Legend 0 Area of Potential Effect ® Additions to APE (2019-2020) M. Area of Direct Impact Record Search 0.5 -mile 0 Previously Recorded Isolate Q Township and Range USGS 7.5 -minute Quadrangle Bureau of Indian Affairs • Bureau of Land Management Bureau of Reclamation 1.000 T6S, R7E 240 2.000 Feel Meters 500 USGS 7.0 -minute Topographic Quadrangles Riverside county, CA NAD 1983 6TH Zone 114 11/10/2021 1-12.000 SWCA mnealetermucarouu/1IS 51 Lied Dayton Street Pasadena. California 9110S Poona 528.2100567 Fee6292-0D607 N9e COM Figure 9d. Previously recorded isolates within the project APE and the 0.5 -mile radius of the APE. 33 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California AVENUE ••• -6T 26 PIPELINE .-----,.. 26 LQ -I-5 , LQ -I-7 LQ -I-6 Isolate (no. resource #) CA-RIV-6112!H 0 CA-RIV-61111H 0 LQ -I-1 LQ -I-211 LQ -I-3 CA-RIV-61101 CA-RIV-6109 -33-008969 P -33-00836a i. /P-33-008372 • P-33-017247 111111h* 4a r gyps 00 CA-RIV-5158 LQ -I.8 CYC RIV5158- -- _60 _9s P-33-00 P-33-00696 .' 374 LQ -I-4 zEl mi oll swimming - Pool A-RIV-5211 CA-RIV-52111H CA-RIV-6115 Isolate (no esource #) AVE • X P-33-008379 P=33-008380 P -s33-008980 P-33-008979 P-33-108978 P-33-008371 wry nesriwiii..i�r®:dl+ksn9 5 82 P-33-008331 P-33-108968 P-33-017754 P-33-008066 P-33-017756 •• P-33-008370 _ TORRES SII AVENUE 251Ind!'" L Valert B01 ,71 61 0) 1- 1- ' -90 • P, 30° • M A RTI IJ 75Z [NAIA'N R' RESERVATION .Tore Ce Legend IIDICVWD Study Area 0 Township and Range I_] Record Search 0.5 -mile USGS 7.5 -minute Quadrangle Travertine APE Bureau of Indian Affairs al Previously Recorded Isolate 11.1 Bureau of Land Management MI Previously Recorded Resource Bureau of Reclamation N A 124,000 6l 0 T6S, R7E 'T65, RBE T7S. R7E 1. T7S, R8E • 0 f a a m §I 1- r 2,000 0 500 4 000 Feel Meters 1,000 USGS 7 -5 -minute Topographic Quadrangles Riverside County, CA - Page of NAD 1983 UTM Zone 110 2/7/2023 iW J22 SWCA 51 West Dayton Sheet Pasadena, caurornla 91105 Phone, 029240 0507 Fax620240_0007 0 Figure 10. Previously recorded sites and isolates within the IID/CVWD Study Area and the 0.5 -mile radius of the IID/CVWD Study Area. 34 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Previously Recorded Cultural Resources within the IID/CVWD Study Area In total, 47 cultural resources have been previously documented within the IID/CVWD Study Area and an 0.5 mile radius, consisting of 16 sites and 31 isolates. Of the sites within the IID/CVWD Study Area radius, four are recommended eligible for the NRHP and CRHR (Temporary No. LQ-S-1/CA- RIV5211/H, Temporary No. LQ-S-2/CA-RIV-5158, CA-RIV-6109, CA-RIV-6110, three are recommended ineligible (CA-RIV-6111/H, CA-RIV-6112/H, and CA-RIV-6115) and the rest have unknown eligibility. Seventeen of the 31 isolated finds were identified from two reports (WESTEC 1997 and CRM 1998) that did not provide Primary or Trinomial resource numbers. The isolated finds that begin with "LQ -I-" are temporary field numbers assigned by Westec in 1987 (RI -02276) and isolates listed as "Isolate (no resource no.)" are temporary field numbers assigned by CRM in 1998 (RI -04084). The 31 isolates are not eligible for the NRHP or CRHR. Table 5 lists previously documented sites within the IID/CVWD Study Area radius and Table 6 lists previously documented isolates within the IID/CVWD Study Area radius. The locations of all previously recorded sites and isolates are depicted in Figure 10. Table 5. Previously Recorded Cultural Resources Sites within the IID/CVWD Study Area and its 0.5 -mile Radius Primary Resource Temporal Resource Recording Year Proximity to Eligibility Number Trinomial Type Affiliation Description (Name, Affiliation) Study Area Status P-33-008331 — Site Prehistoric, Ethnographic 1968 (Wood: N/A) Within Unknown historic Village Site eligibility P-33-008368 CA-RIV-6102 Site Prehistoric Ceramic 1998 (B. Love, CRM) Outside Unknown scatter eligibility P-33-008370 CA-RIV-6104 Site Prehistoric Ceramic 1998 (B. Love, CRM) Outside Unknown scatter eligibility P-33-008371 CA-RIV-6105 Site Prehistoric Ceramic 1998 (B. Love, CRM) Outside Unknown scatter eligibility P-33-008372 N/A Site N/A N/A N/A Outside Unknown eligibility P-33-008374 CA-RIV-6108 Site Prehistoric Ceramic 1998 (B. Love, CRM) Outside Unknown scatter eligibility P-33-008379 CA-RIV-6113 Site Prehistoric Ceramic 1998 (B. Love, CRM) Within Unknown scatter eligibility P-33-008380 CA-RIV-6114 Site Prehistoric Ceramic 1998 (B. Love, CRM) Outside Unknown scatter eligibility P-33-017247 N/A Site Prehistoric Cremation 2002 (Ballester: Outside Unknown CRM) eligibility (Temporary CA-RIV- Site Prehistoric Ceramic 1987 (D. Gallegos, C. Outside Recommended No. LQ -S-1) 5211/H scatter with Kyle, and R. Phillips, eligible groundstone WESTEC) and fire - affected rock (Temporary CA-RIV-5158 Site Prehistoric Ceramic 1987 (D. Gallegos, C. Within Recommended No. LQ -S-2) scatter Kyle, and R. Phillips, eligible WESTEC) 35 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Primary Number Trinomial Resource Temporal Resource Recording Year Proximity to Eligibility Type Affiliation Description (Name, Affiliation) Study Area Status N/A CA-RIV-6109 Site Prehistoric Ceramic 1998 (B. Love, B. Within Recommended scatter with Tang, H. Quinn, and eligible groundstone R. Norwood, CRM) and lithic shatter N/A CA-RIV-6110 Site Prehistoric Ceramic 1998 (B. Love, B. Within Recommended scatter with Tang, H. Quinn, and eligible rounded R. Norwood, CRM) square ball, and groundstone N/A CA-RIV- Site Historic with Sun -colored 1998 (B. Love, B. Within Recommended 6111/H prehistoric amethyst Tang, H. Quinn, and ineligible isolated find glass with R. Norwood, CRM) prehistoric ceramic sherd N/A CA-RIV- Site Prehistoric Prehistoric 1998 (B. Love, B. Within Recommended 6112/H with historic ceramic Tang, H. Quinn, and ineligible isolated find scatter with R. Norwood, CRM) sun -colored amethyst glass N/A CA-RIV-6115 Site Prehistoric Ceramic 1998 (B. Love, B. Outside Recommended scatter Tang, H. Quinn, and ineligible R. Norwood, CRM) Table 6. Previously Recorded Isolates within the IID/CVWD Study Area and its 0.5 -mile Radius Primary Number Trinomial Resource Temporal Resource Recording Year Eligibility Type Affiliation Description (Name, Affiliation) Status P-33-008966 N/A Isolate Prehistoric Brown ware rim 1998 (B. Love, B. Tang, Not eligible sherd H. Quinn, and R. Norwood, CRM) P-33-008967 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Not eligible Riverside, California) P-33-008968 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Not eligible Riverside, California) P-33-008969 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Not eligible Riverside, California) P-33-008978 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Not eligible Riverside, California) P-33-008979 N/A Isolate Prehistoric Granite mano 1998 (Bruce Love, CRM, Not eligible Riverside, California) P-33-008980 N/A Isolate Prehistoric Brown ware sherd 1998 (Bruce Love, CRM, Not eligible Riverside, California) P-33-011342 N/A Isolate Prehistoric Tizon Brown 1990 (B. Arkush, Not eligible ware body sherd Archaeological Research Unit, U.C. Riverside) P-33-011343 N/A Isolate Prehistoric Tizon Brown 1990 (B. Arkush, Not eligible ware rim sherd Archaeological Research Unit, U.C. Riverside) P-33-011344 N/A Isolate Prehistoric Tizon Brown 1990 (B. Arkush, Not eligible ware body sherd Archaeological Research Unit, U.C. Riverside) 36 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Primary Number Trinomial Resource Type Temporal Affiliation Resource Description Recording Year Eligibility (Name, Affiliation) Status P-33-011345 N/A Isolate Prehistoric Chalcedony flake 1990 (B. Arkush, Not eligible Archaeological Research Unit, U.C. Riverside) P-33-011346 N/A Isolate Prehistoric Tizon Brown ware body sherd 1990 (B. Arkush, Not eligible Archaeological Research Unit, U.C. Riverside) P-33-017754 N/A Isolate Prehistoric Shaped fragment of pumice 2002 (Robert Porter, Not eligible CRM) P-33-017756 N/A Isolate Prehistoric Manos and metates 2002 (Robert Porter, Not eligible CRM) (Temporary N/A No. LQ -I-1) Isolate Prehistoric Four ceramic body sherds 1987 (D. Gallegos, C. Not eligible Kyle, and R. Phillips, WESTEC) (Temporary N/A No. LQ -I-2) Isolate Prehistoric Three ceramic body sherds 1987 (D. Gallegos, C. Not eligible Kyle, and R. Phillips, WESTEC) (Temporary N/A No. LQ -I-3) Isolate Prehistoric Three ceramic body sherds 1987 (D. Gallegos, C. Not eligible Kyle, and R. Phillips, WESTEC) (Temporary N/A No. LQ -I-4) Isolate Prehistoric Ceramic body sherd 1987 (D. Gallegos, C. Not eligible Kyle, and R. Phillips, WESTEC) (Temporary N/A No. LQ -I-5) Isolate Prehistoric Ceramic body sherd 1987 (D. Gallegos, C. Not eligible Kyle, and R. Phillips, WESTEC) (Temporary N/A No. LQ -I-6) Isolate Prehistoric Ceramic body sherd 1987 (D. Gallegos, C. Not eligible Kyle, and R. Phillips, WESTEC) (Temporary N/A No. LQ -I-7) Isolate Prehistoric Bifacial mano 1987 (D. Gallegos, C. Not eligible Kyle, and R. Phillips, WESTEC) (Temporary N/A No. LQ -I-8) Isolate Prehistoric Ceramic body sherd 1987 (D. Gallegos, C. Not eligible Kyle, and R. Phillips, WESTEC) Isolate (no N/A resource number) Isolate N/A N/A 1998 (B. Love, B. Tang, Not eligible H. Quinn, and R. Norwood, CRM) Isolate (no N/A resource number) Isolate N/A N/A 1998 (B. Love, B. Tang, Not eligible H. Quinn, and R. Norwood, CRM) Isolate (no N/A resource number) Isolate N/A N/A 1998 (B. Love, B. Tang, Not eligible H. Quinn, and R. Norwood, CRM) Isolate (no N/A resource number) Isolate N/A N/A 1998 (B. Love, B. Tang, Not eligible H. Quinn, and R. Norwood, CRM) 37 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Primary Number Trinomial Resource Temporal Resource Recording Year Eligibility Type Affiliation Description (Name, Affiliation) Status Isolate (no N/A resource number) Isolate N/A N/A 1998 (B. Love, B. Tang, Not eligible H. Quinn, and R. Norwood, CRM) Isolate (no N/A resource number) Isolate N/A N/A 1998 (B. Love, B. Tang, Not eligible H. Quinn, and R. Norwood, CRM) Isolate (no N/A Isolate N/A N/A 1998 (B. Love, B. Tang, Not eligible resource H. Quinn, and R. number) Norwood, CRM) Isolate (no N/A resource number) Isolate N/A N/A 1998 (B. Love, B. Tang, Not eligible H. Quinn, and R. Norwood, CRM) Isolate (no N/A resource number) Isolate N/A N/A 1998 (B. Love, B. Tang, Not eligible H. Quinn, and R. Norwood, CRM) Additional Literature Review Results for the IID/CVWD Study Area The ethnographic context of the project APE, including the IID/CVWD Study Area (study area), is outlined in detail in the 2017 study by Martinez and Nicolay. In sum, the IID/CVWD Study Area is within the traditional territory of the Cahuilla. The closest ethnographically documented Cahuilla village to the IID/CVWD Study Area is Mauulmia, which was located within the Lake Cahuilla lakebed near the study area. While the exact location of the village is unknown, archaeologists have tentatively identified CA-RIV-7394 as the location of Mauulmia. This site is southwest of the IID/CVWD Study Area and is a contributor to the MMRD documented in Martinez and Nicolay (2017). Historic records document the presence of several Indigenous villages across the lakebed and extending up to the Santa Rosa Mountains, with the U.S. General Land Office surveys of the 1850s identifying four Indigenous villages still present in La Quinta and nearby environs. The contemporary boundaries of the Torres Martinez Indian Reservation are just east of the APE. A review of historical maps indicates that the IID/CVWD Study Area was generally undeveloped during the mid- to late twentieth century, although the Cahuilla settlement and reservation of Torres is within the study area. The region was heavily traversed, with a well-known desert trail running northwest -southeast between modern-day Indian Wells and Toro as early as 1901. Known as the Bradshaw Trail, it followed a similar path to the present-day Highway 111. During the mid- to late nineteenth century, the Bradshaw Trail served as the main thoroughfare between southern California and the Colorado River until the completion of the Southern Pacific Railroad between 1876 and 1877. Settlement of the Coachella Valley began in the 1870s with the establishment of railroad stations along the Southern Pacific Railroad. By 1883, there were stations at Banning, Beaumont, Cabezon, Whitewater (later Palm Springs Station), Seven Palms, and Indio. Settlement spread further after public land was opened for claims under the Homestead Act, the Desert Land Act, and other federal land laws. The exploitation of underground water sources allowed farming to dominate the economy in the valley, but it was not until the completion of the Coachella Canal between 1948 and 1949 that there was an adequate and reliable water source. The date palm was first introduced around the turn of the twentieth century and came to dominate agriculture in the area. Starting in the 1920s, the resort industry began to spread through the Coachella Valley, bringing resort hotels, equestrian camps, and country clubs, eventually making the area southern California's leading winter retreat location (Hruby et al. 2006). 38 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California The origin of the City of La Quinta itself is attributed largely to vacationers. The City's resort industry was born in the 1920s when Walter H. Morgan opened the La Quinta Resort and Club, originally designed by renowned architect Gordon B. Kauffman (Hogan et al. 2004). The resort quickly became popular among Hollywood elite who considered the place a desert oasis. Notably, the first golf course in the Coachella Valley was built at the resort. In 1982, when the City officially became incorporated, residents decided to adopt the name of the premier resort that put them on the map: La Quinta. Although the area still is known for its resorts and golf courses, it boasts a fairly large permanent population of just over 40,000 people as of 2015. European settlement in the area directly around the study area begin in 1877, when a land claim was filed for the entire Section 34 of Township 6 South, Range 7 East. While unsuccessful, more claims followed under either the Homestead Act or the Desert Land Act across different sections and parcels under almost continuous attempts at settlement (Love et al. 1998). By 1918, much of the land in the area was patented. Cultivated land is present in the southeast quarter of Section 34 on a range map from 1903, with full cultivation of the entire east half of Section 34 by the late 1930s. By 1941, several buildings were present within the study area in the same locations as the buildings present today. Aerial photos show that many of the agricultural fields began to be abandoned in the latter half of the twentieth century. Geoarchaeologically, the IID/CVWD Study Area consists primarily of alluvial sediments eroded from the surrounding highlands that have covered lacustrine sediments from Lake Cahuilla, with the southwestern- most corner of the study area extending into an alluvial fan. Growth and desiccation of Lake Cahuilla were episodic but occurred numerous times, and such events can potentially preserve archaeological remains. These differential patterns of preservation would have varied on both large and small scales within the lakebed and throughout the Prehistoric period until Lake Cahuilla's last high water stand in A.D. 1500 (Bowersox 1974). An alluvial fan is present in the southwestern portion of the IID/CVWD Study Area where Guadalupe Creek emerges from the mountains. Alluvial fans are semi -conical landforms with slopes of 2 to 20 degrees that form at the transition from highlands to lowlands through the deposition of sediments by water and gravity (Williams et al. 2006). The fan in the study area is young, geologically speaking, dating from the Holocene to recent (11,700 years before present [B.P.]) (Dibblee and Minch 2008), and therefore may preserve archaeological resources. Within alluvial fans, grain size decreases downslope, such that the coarsest sediments are found at the apex of the fan near the channel in the highlands, with progressively finer sediments representing lower energy environments deposited toward the toe of the fan where it meets the basin or valley floor, such as is present in the study area (Blair and McPherson 1994). These distal regions of the fan have moderate potential for buried archaeological resources. The majority of the study area is made up of alluvial sediments that accumulated from the deposition of water -transported sediments, either as part of episodic sheet floods or ephemeral streams and washes. These sediments are flat -lying across the project area and, combined with the periodic nature of depositional events, have moderate potential for buried archaeological sites. The Lake Cahuilla beds that underlie the alluvial sediments throughout the study area are generally finer grained and better sorted than alluvium, consisting of clay, silt, and sand (Morton 1966, 1977). Lacustrine sediments represent a low-energy environment with relatively high rates of deposition; thus, the Lake Cahuilla beds underlying the alluvium have high potential for containing archaeological sites. A mitigating factor in the likelihood of encountering intact buried resources, at least near the surface, is the agricultural use of the project area. Since the early to mid -twentieth century, agricultural activity almost certainly involved plowing, which would have disturbed any native surface sediments and displaced archaeological materials that might have been located within the study area. Although no specific figures regarding depth or breadth of plowing activity were identified for historic agricultural 39 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California practices in Riverside County or La Quinta, plow zones observed in archaeological contexts elsewhere in southern California typically do not extend more than a few feet (less than 1 m) below the surface. Field Survey Field survey in 2019 and 2020 focused on only those portions of the APE that fall outside the boundaries of the area studied by SWCA in 2017. Therefore, previously recorded P-33-001334 was not revisited and is not discussed further in this technical addendum. SWCA did not attempt to relocate the previously recorded isolated finds within the APE because they are not eligible for listing in the NRHP or CRHR and are also not discussed further in this technical addendum. The locations of all other previously recorded resources that intersected the field survey area were revisited as described below. DPR 523 forms for the revisited resources are provided in Appendix C. SWCA did not survey the IID/CVWD Study Area for this study. SWCA archaeologists recorded nine newly identified resources as a result of the 2019 and 2020 field efforts: six sites and three isolates (Table 7; Figure 11). These resources (described in detail below) consist of two prehistoric isolates (SWCA-ISO-44489-1006 and SWCA-ISO-44489-1010), each consisting of two ceramic sherds; one historic isolate (SWCA-44489-ISO-990) consisting of four crushed pull -tab cans; three historic -era refuse scatters (SWCA-S-44489-1000, SWCA-S-44489-1008, and SWCA-44489-S-999); and three prehistoric archaeological sites (SWCA-S-44489-1004, SWCA-S- 44489-1005, and SWCA-S-44489-1007). DPR 523 forms for newly recorded resources are provided in Appendix C. As noted, the 14 previously recorded sites that comprise the MMRD were also revisited. No changes were observed in the sites comprising the MMRD and no updates were prepared for the site records. Table 7. Newly Identified Cultural Resources Within or Near the Area of Potential Effects (2019-2021) Temporary Number Resource Type Resource Description NRHP/CRHR Eligibility Recommendation SWCA-S-44489-1000 Historic -era archaeological site Refuse scatter Not eligible for the NRHP or CRHR SWCA-S-44489-1004 Prehistoric archaeological site Ceramic scatter Not eligible for the NRHP or CRHR SWCA-S-44489-1005 Prehistoric archaeological site Ceramic scatter Not eligible for the NRHP or CRHR SWCA-ISO-44489-1006 Prehistoric isolate Two ceramic sherds Not eligible for the NRHP or CRHR SWCA-S-44489-1007 Prehistoric archaeological site Ceramic scatter and fire- Not eligible for the NRHP or CRHR affected rock SWCA-S-44489-1008 Historic -era archaeological site Refuse scatter Not eligible for the NRHP or CRHR SWCA-ISO-44489-1010 Prehistoric isolate Two ceramic sherds Not eligible for the NRHP or CRHR SWCA-44489-S-999 Historic -era archaeological site Refuse scatter Not eligible for the NRHP or CRHR SWCA-44489-ISO-990 Historic -era isolate Pull -tab cans Not eligible for the NRHP or CRHR 40 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California 1 11 l I t; SWCA-44489-1010 ,SWCA-44489-5-999 SWCA-44489-ISO-990 P-33-014989 /J/0 a ` p _ it P-33-01329.7`' •ate' SWCA-44489 -1004 - �$A � 4, SWCA-44489-1008��a� — SWCA-44489-1005 �s SWlrA 44489— "s 08 .P-3 -008921 T65,-R7E _ SWCA-44489-1007 4 YV i l 33 ro 0,0 - 70 Legend Cf Area of Potential Effects IZZI Additions to APE (2019-2020) 7 Area of Direct impact 1 Previously Recorded Resource = Newly Recorded Resource CI Township and Range USGS 7.5 -minute Quadrangle 0 2,000 IP-33-001340 4 P-33-013296 IP-33-001343 w a Z a z Sw rrlrning Pool 0. ii h} _an I /l9f'f/S6 SWCA 46-1000 M 50 4,000 Meters 0 500 1,000 1:24,000 USGS 7.5 -minute Quadrangle Martinez Mountain and Valerie Riverside County, CA NAD 1983 UTM Zone 11N 11119/2021 a- m a r': r• Fen' ?i 31 31 'A/A 31 fiC/ 31 Cot 1' 3 T SWCA ENVIRONMENTAL CONSULTANTS 51 West Dayton Street Pasadena, California 91105 Phone: 826.240.0587 Fax: 626.240.0607 www swea com Figure 11. Newly identified and previously recorded sites that intersect the 2019-2020 survey area. 41 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California NEWLY IDENTIFIED SITES SWCA-S-44489-1000 Site SWCA-S-44489-1000 (Figure 12) is a historic -era refuse scatter consisting of cans, glass, broken tableware, and other historic refuse within an area measuring 116 m (381 feet) in length by 40 m (131 feet) in width. There are two main trash concentrations (Loci 1001 and 1002). The site is much larger than what was recorded because the site extends farther to the south, outside of the APE. Locus 1001 consists of over 200 cans, mostly knife -opened ribbed sanitary cans, within an area measuring approximately 8 m (26 feet) in diameter. This locus includes over 25 hole -in -top cans, of which approximately 90 percent are key -opened and 10 percent are ice pick -opened; over 20 single - serve, key -opened sanitary food cans; over five meat/tuna sanitary cans; over five large sanitary cans; two key -strip cans that are possible coffee cans; at least two church key—opened steel beverage cans; three condensed milk cans; a bimetal can; a rectangular standing solvent can with a pry lid; an oval threaded screw -opening can that measures 4'/8 inches in length, 2'/2 inches in width, and 11/2 inches in depth with an opening of 3/4 inch; a 1 -gallon pry -lid paint can; a large church key—opened sanitary can; a small key strip—opened can; over 50 crushed sanitary cans with unknown openings. Glass and ceramic artifacts include an external screw -threaded glass bottle, a large pink ceramic ring from a possible vase or pot, over three terra-cotta fragments, modern plastic, and five glass bottle bases with maker's marks. Diagnostic maker's marks identified within Locus 1001 (Figure 13) include two Owens-Illinois Glass Co. colorless bottle bases with a capital I within a capital 0 that date from 1954 to present, an Anchor Hocking colorless glass bottle base that dates from 1938 to ca. 1980, and a Glass Containers colorless glass bottle base that dates from 1934 to 1968. Locus 1002 consists of over 75 cans and over 10 glass bottles and is located approximately 42 m (138 feet) east of Locus 1001. This locus measures approximately 6 m (20 feet) in length and 4.5 m (15 feet) in width. Locus 1002 includes 11 crushed sanitary cans, five church key—opened steel beverage cans, four crushed church key—opened steel beverage cans, four ice pick—opened hole -in -top cans, two crushed hole -in -top cans, a crushed knife -opened sanitary can, an ice pick—opened sanitary can, a crushed external -thread rectangular solvent can, and a key strip—opened coffee can. Glass artifacts include amber glass shards, green glass shards, aqua glass shards, a colorless jar rim with external threading, and three colorless glass finishes with external threading. Maker's marks in Locus 1002 (Figure 14) include 11 Roma Wines aqua glass bottle bases made by the Maywood Glass Company that date 1930 to 1959; three colorless glass bottle bases, an aqua glass bottle base, and an amber glass bottle base made by Owens-Illinois Glass Co. dating from 1954 to present; and a colorless Duraglas Owens-Illinois Glass Co. bottle base with a capital I within a diamond and capital 0 maker's mark that dates from 1929 to ca. 1940. Locus 1002 also included an Anchor Hocking colorless glass bottle base that dates from 1938 to ca. 1980, a Hazel Atlas aqua glass bottle base that dates 1923 to 1982, a Brockway Glass bottle base that dates 1933 to ca. 1980, and a Latchford -Marble Glass Co. colorless bottle base that dates 1939 to 1957. This portion of the site likely represents a dumping episode that occurred prior to the 1970s, based on a Pepsi Light can and the other can types and maker's marks that pre -date the 1970s. 42 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Figure 12. Site SWCA-S-44489-1000 that intersects the additional APE. Figure 53. Site SWCA-S-44489-1000, Locus 1001 overview, facing east. 43 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Figure 14. Site SWCA-S-44489-1000, Locus 1002 overview, facing east. SWCA-S-44489-1004 Site SWCA-S-44489-1004 (Figure 15) is a prehistoric archaeological site that consists of nine brown ware pottery sherds within an area measuring 36 m (118 feet) in length by 28 m (92 feet) in width. The site is situated on a small terrace that drops off just northwest of the site, and the resource is highly disturbed by multiple two -track roads that cross the site. The sediments within the site consist of unconsolidated sands on an alluvial surface, suggesting that items may have been moved across this unstable ground surface after deposition. The soil is brown (Munsell: 10YR 5/3), coarse loose sand with subangular, decomposing granite gravels. The site is situated near the western edge of Coachella Valley and has an open aspect with a slope of less than 2 degrees. Visibility was excellent (76-100 percent) and the vegetation in the area includes a very low density of saltbush, with creosote bush and tamarisk in the vicinity. The site may represent a pot drop. 44 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California • • Figure 65. Site SWCA-S-44489-1004 overview, facing south. SWCA-S-44489-1005 Site SWCA-S-44489-1005 (Figure 16) is a prehistoric archaeological site that consists of 20 brown ware pottery sherds within an area measuring 128 m (420 feet) in length by 37 m (121 feet) in width. The highest density of sherds is in the southern portion of the site and the density decreases to the north. A segment of CVWD's Guadalupe Creek Diversion Dike system runs north -south just west of the site, and a two -track road that runs north -south bisects the site. The sediments within the site consist of unconsolidated sands on an alluvial surface, suggesting that items may have been moved across this unstable ground surface after deposition. The soil is a dark grayish brown (Munsell: 2.5YR 4/2), coarse loose silty sand. The site is situated near the western edge of Coachella Valley and has an open aspect with a slope of less than 2 degrees. Visibility was excellent (76-100 percent) and the vegetation in the area includes sparse creosote bush and grasses. The site may represent a pot drop of one or more vessels. 45 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Figure 76. Site SWCA-S-44489-1005 overview, facing north. SWCA-S-44489-1007 Site SWCA-S-44489-1007 (Figure 17) is a prehistoric site that consists of four large brown ware pottery sherds and at least one fire -affected rock scattered over an area measuring approximately 16.5 m (54.1 feet) in length by 11 m (36 feet) in width. The sherds were documented in the northern portion of the site and a fire -affected rock was noted in the southern portion of the site. An ephemeral east—west drainage is located just south of the site and a large fragment of corrugated metal is located approximately 2 m (6.6 feet) southwest of the resource. There are medium to large granite boulders throughout the site and the sediments within the site consist of unconsolidated sands on an alluvial surface, suggesting that items may have been moved across this unstable ground surface after deposition. The soil is a dark grayish brown (Munsell: 2.5YR 4/2), coarse loose silty sand. The site is situated near the western edge of Coachella Valley and has an open aspect with a slope of less than 2 degrees. The area is located in a desert plain with a high density of granite cobbles and boulders. Visibility was good (76-100 percent) and the low- to moderate -density vegetation in the area includes creosote bush, catclaw acacia, ocotillo, and pencil cholla. The site may represent a pot drop. 46 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California -'. 1"414A !'"^ w817'3- x4+1'r 9 __ F`t±{}".5_, •'wry . 9 Figure 87. Site SWCA-S-44489-1007 overview, facing south-southwest. SWCA-S-44489-1008 Site SWCA-S-44489-1008 (Figure 18) is a historic -era archaeological site that consists of three cans, a terra-cotta sherd, milled lumber, and an automobile air filter housing within an area measuring approximately 21 m (69 feet) in length by 9 m (30 feet) in width. The three historic cans consist of two pull tab—opened cans, and a church key—opened sanitary can. The larger pull tab—opened can measures 64/16 inches in height and 2% inches in diameter and the smaller pull tab—opened can measures 4'/8 inches in height and 212/16 inches in diameter. The church key—opened can measures 210/16 inches in height and 3 inches in diameter. The main body of the air filter housing measures 17 inches in diameter and has an opening measuring 5% inches in diameter. The single air inlet pipe on the housing is rectangular and measures 8 inches in length, 4Y2 inches in width, and 312/16 inches in thickness. A crushed pull tab—opened bimetal can was also documented within the site. The site is located directly north of an east -west -trending levee, which is a portion of CVWD's Guadalupe Creek Diversion Dike system. The site is situated near the western edge of Coachella Valley and has an open aspect with a slope of less than 2 degrees. The area is a desert plain with a high density of granite cobbles and boulders. Visibility was good (76-100 percent) and the low- to moderate -density vegetation in the area includes creosote bush, saltbush, and desert grasses. The soil is a dark grayish brown (Munsell: 10YR 4/2), medium coarse silty sand that is poorly sorted. The resource most likely represents a single- or double -episode dump dating from the 1960s and 1970s, based on the types of cans present. 47 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Figure 98. Site SWCA-S-44489-1008 overview and Guadalupe Dike, facing southeast. SWCA-44489-S-999 Site SWCA-44489-S-999 (Figure 19) is a historic -era refuse deposit intermixed with modern refuse and is likely in a secondary context (due to wind and water erosion). The site consists of two historic -era deposits with a light scatter that connects them. Artifacts clearly of historic age include bimetal pull -tab cans, glass bottles, and glass vessel bases. Other items that may be modern include barrel hoops, furniture springs, cans, glass fragments (brown and colorless), and other debris. The resource is located on a large alluvial plain with a slight (2 degree) north -facing slope. Sediments are a coarse sand that is light, pale brown and contains abundant pebble- to cobble -sized inclusions. A road crosses the site north -south. Given the mix of historic -era and modern debris, the site likely represents multiple dumping episodes. 48 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Figure 109. Site SWCA-44489-S-999 overview, facing north. NEWLY IDENTIFIED ISOLATES SWCA-ISO-44489-1006 SWCA-ISO-44489-1006 (Figure 20) is a prehistoric isolated find that consists of two brown ware sherds that refit together to form one larger sherd. The sherds have a sand temper and when refitted measure approximately 28.4 mm in length, 18.4 mm in width, and 4.3 mm in thickness. The resource is situated on the western edge of Coachella Valley within a low desert plain with an open aspect and a slope of less than 2 degrees. The soil near the isolate is dark grayish brown (Munsell: 2.5 YR 4/2) and consists of a coarse silty sand with poorly sorted subangular gravels (less than 5 percent). There is a low density of vegetation, including saltbush, sparse creosote bush, and sagebrush, and visibility is excellent (76-100 percent). Disturbances in the area include natural alluvial erosion and deposition. A two -track road is located just west of the resource. 49 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Figure 20. Isolate SWCA-ISO-44489-1006 brown ware sherd plan view. SWCA-ISO-44489-1010 SWCA-ISO-44489-1010 (Figure 21) is a prehistoric isolated find that consists of two brown ware sherds. Both sherds measure approximately 30 mm in length, 20 mm in width, and 4 mm in thickness. The resource is situated on the western edge of Coachella Valley, near the southeastern toe of Coral Mountain, and is within a low desert plain with an open aspect and a slope of less than 2 degrees. The soil near the isolate is grayish brown and consists of a coarse silty sand with poorly sorted subangular gravels. There is a low density of vegetation, including saltbush, sparse creosote bush, and sagebrush, and visibility is excellent (76-100 percent). Disturbances in the area include natural alluvial erosion and deposition, and the resource is within a two -track road. 50 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California Figure 21. Isolate SWCA-ISO-44489-1010 overview, facing northeast. SWCA-44489-ISO-990 SWCA-44489-ISO-990 is a historic -era isolated find consisting of four crushed, bimetal, pull -tab cans. The resource is located on a large alluvial plain with a slight (2 degree) north -facing slope. The sediment near the isolated find is a coarse sand that is light, pale brown and contains abundant pebble- to cobble - sized inclusions. A photograph of this resource is not available. PREVIOUSLY RECORDED SITES P-33-001340 Site P-33-001340 is a large ceramic and lithic scatter. It was first recorded in 1972 by P. Wilke as a light to moderate ceramic scatter. In 1998, Bruce Love and Tom Tang updated the site record and greatly expanded the site boundaries, noting a very dense scatter of ceramic sherds at the north end of the site mixed with lithic materials, including biface fragments and two arrow points. They noted that the site has high research and data potential due to the large numbers of artifacts, imported materials and dense number of artifacts in the north end indicating an intense activity area. Love and Tang recommended additional testing at the site to determine its eligibility for listing in the CRHR. SWCA attempted to relocate the portion of the resource that intersects the APE but could find no remnants on the ground surface. The densest portions of the site are mapped outside the APE and may still be present outside the APE. It is also possible that over the past 25 years, alluvial forces have shifted or buried artifacts that may have been present in the APE. 51 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California P-33-001343 Site P-33-001343 is a prehistoric campsite with ceramic sherds. It was first recorded in 1972 by P. Wilke. At the time it was noted that extensive trash dumping had negatively impacted the prehistoric component. P. Wilke updated the site again in 1980, noting that modern trash was still being dumped in the area. In 1998 Bruce Love and Tom Tang updated the site and incorporated another previously recorded site, CA-RIV-273 (which was documented as a cremation site), into the site. They noted that P-33-001343 also had some rock alignments and a tight cluster of fire -affected rock. In their subsequent report (Love et al. 2002), they recommended the site eligible for listing in the CRHR. A testing and mitigation program was implemented at the site, which included surface collection and the excavation of several units and surface scrapes. By 2004, when the site was being monitored for earth -moving activities, only two ground stone implements were identified. After the monitoring efforts, Hogan et al. (2004) recommended that "the cultural components of the site appear to have been completely recovered from the area during the testing and mitigation program." Based on this assessment, it appears that the site would no longer eligible for listing in the NRNP or CRHR, since it is no longer extant. SWCA attempted to relocate the resource but could find no remnants on the ground surface. P-33-013296 Site P-33-013296 is a large prehistoric site with three loci. Locus 1 contains a large ceramic scatter, lithic scatter, ground stone, and hearth and rock features. Locus 2 consists of a small ceramic scatter, fire -affected rock, and human cremation. Locus 3 is a ceramic scatter with one complete granite mano. The site was first recorded in 2003 by Daniel Ballester of CRM Tech, who also reclassified site CA-RIV-1346 as Locus 1 at that time. The NRHP and CRHR eligibility statuses for the resource is unknown. SWCA attempted to relocate the portion of the resource that intersects the APE but could find no remnants on the ground surface. The loci described in the site record are mapped outside the APE and may still be present outside APE. It is also possible that over the past 25 years, alluvial forces have shifted or buried artifacts that may have been present in the APE. P-33-013297 Site P-33-013297 consists of a large ceramic scatter, a metate fragment, and two small rock features, likely hearths. It was first recorded in 2003 by Daniel Ballester of CRM Tech. The NRHP and CRHR eligibility statuses for the resource is unknown. SWCA re -located the portion of this resource that is within the project APE; however, only ceramic sherds were identified. The rock features were not re -located and if still extant likely occur in the portion of the site outside the project APE. P-33-014987 Site P-33-14987 consists of a rock cairn. It was first recorded by Stephen O'Neil and Kevin Hunt of SWCA in 2005. The NRHP and CRHR eligibility statuses for the resource is unknown. SWCA did not relocate this resource within the project APE; it is likely that the resource is outside the project APE. 52 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California EVALUATION RECOMMENDATIONS This section presents SWCA's NRHP and CRHR eligibility recommendations for the newly identified sites within the APE. In most cases, the previously recorded resources, none of which has been evaluated, could not be found and likely are either destroyed or located outside the APE. Regardless, these five resources will be avoided by the project and therefore eligibility recommendations are not provided for them. Isolated finds typically are not considered eligible for the NRHP or CRHR because they lack context and association. Therefore, newly recorded isolates SWCA-ISO-44489-1006, SWCA-ISO-44489- 1010 and SWCA-44489-ISO-990 and all previously recorded isolates are considered not eligible for the NRHP and CRHR and are not addressed further in this section. SWCA-S-44489-1000 Site SWCA-S-44489-1000 is a historic -era refuse scatter. The site is located within the boundary of the MMRD; however, it is not a contributor to the district because its age falls outside the district's Late Prehistoric period of significance. This site is recommended not eligible for the NRHP/CRHR under Criterion A/1 because it is not associated with events that have made a significant contribution to the broad patterns of our history. It is a simple refuse scatter with a mix of deposits spanning multiple decades. It is recommended not eligible for the NRHP/CRHR under Criterion B/2 because it is not associated with the lives of persons significant in our past; this refuse scatter cannot be linked to particular people. It is recommended not eligible for the NRHP/CRHR under Criterion C/3 because it does not embody distinctive design or artistic characteristics; rather, it is an unstructured refuse deposit. As a resource that is ubiquitous in the area, documentation has captured available information and it is not likely to yield information important to history. Given this, SWCA recommends the site not eligible for the NRHP/CRHR under Criterion D/4. Furthermore, SWCA recommends SWCA-S-44489-1000 not eligible for the NRHP/CRHR both as a standalone resource and as a contributor to the MMRD. Therefore, the project will result in no impact or adverse effect to this resource. SWCA-S-44489-1004 Site SWCA-S-44489-1004 is a prehistoric archaeological site consisting of nine ceramic sherds. It is located over 2 km north of and outside the boundary of the MMRD and, therefore, is not part of the district. As a prehistoric resource, it is primarily considered for NRHP/CRHR eligibility under Criterion D/4. As a resource with a small count of artifacts of a single artifact type, no features, and minimal potential for a buried component, it is recommended not eligible for the NRHP/CRHR under Criterion D/4 because it is not likely to yield information important to prehistory. It is also recommended not eligible under Criterion A/1 because it is not associated with events that have made a significant contribution to the broad patterns of our history. It is a small ceramic scatter without clear associations. It is recommended not eligible for the NRNP/CRHR under Criterion B/2 because it is not associated with the lives of persons significant in our past; the ceramic scatter cannot be linked to particular people. It is recommended not eligible for the NRHP/CRHR under Criterion C/3 because it does not embody distinctive design or artistic characteristics; rather, it is an unstructured ceramic scatter. Given this, SWCA-S-44489-1004 is recommended not eligible for the NRHP or CRHR. Therefore, the project will result in no impact or adverse effect on this resource. SWCA-S-44489-1005 Site SWCA-S-44489-1005 is a prehistoric archaeological site consisting of 20 ceramic sherds. It is located over 2 km north and outside the boundary of the MMRD and, therefore, is not part of the district. As a prehistoric resource, it is primarily considered for NRHP/CRHR eligibility under Criterion D/4. As a resource with a small count of artifacts of a single artifact type and no features, it is recommended not eligible for the NRHP/CRHR under Criterion D/4 because it is not likely to yield information important 53 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California to prehistory. It is also recommended not eligible under Criterion A/1 because it is not associated with events that have made a significant contribution to the broad patterns of our history. It is a small ceramic scatter without clear associations. It is recommended not eligible for the NRHP/CRHR under Criterion B/2 because it is not associated with the lives of persons significant in our past; the ceramic scatter cannot be linked to particular people. It is recommended not eligible for the NRHP/CRHR under Criterion C/3 because it does not embody distinctive design or artistic characteristics; rather, it is an unstructured ceramic scatter. Given this, SWCA-S-44489-1005 is recommended not eligible for the NRHP or CRHR. Therefore, the project will result in no impact or adverse effect on this resource. SWCA-S-44489-1007 Site SWCA-S-44489-1007 is a prehistoric resource consisting of four ceramic sherds and a fire -affected rock scatter. It is located almost 2 km north and outside the boundary of the MMRD and, therefore, is not part of the district. As a prehistoric resource, it is primarily considered for NRHP/CRHR eligibility under Criterion D/4. As a resource with a small count of artifacts/ecofacts, it is recommended not eligible for the NRHP/CRHR under Criterion D/4 because it is not likely to yield information important to prehistory. It is also recommended not eligible under Criterion A/1 because it is not associated with events that have made a significant contribution to the broad patterns of our history. It is a small ceramic scatter without clear associations. It is recommended not eligible for the NRNP/CRHR under Criterion B/2 because it is not associated with the lives of persons significant in our past; the ceramic scatter cannot be linked to particular people. It is recommended not eligible for the NRHP/CRHR under Criterion C/3 because it does not embody distinctive design or artistic characteristics; rather, it is an unstructured ceramic scatter. Given this, SWCA-S-44489-1007 is recommended not eligible for the NRHP or CRHR. Therefore, the project will result in no impact or adverse effect on this resource. SWCA-S-44489-1008 Site SWCA-S-44489-1008 is a 1960s -1970s historic refuse scatter containing fewer than 10 artifacts. This site is recommended not eligible for the NRNP/CRHR under Criterion A/1 because it is not associated with events that have made a significant contribution to the broad patterns of our history. It is recommended not eligible for the NRHP/CRHR under Criterion B/2 because it is not associated with the lives of persons significant in our past; this refuse scatter cannot be linked to particular people. It is recommended not eligible for the NRHP/CRHR under Criterion C/3 because it does not embody distinctive design or artistic characteristics; rather, it is an unstructured refuse deposit. As a resource that is lacking in complexity and is common in the area, documentation has captured the information potential of the resource and it is not likely to yield information important to history. Given this, it is recommended not eligible for the NRHP/CRHR under Criterion D/4. Site SWCA-S-44489-1008 is recommended not eligible for the NRHP or CRHR. Therefore, the project will result in no impact or adverse effect on this resource. SWCA-44489-S-999 Site SWCA-44489-S-999 is a 1960s—present historic refuse scatter containing fewer than 10 artifacts. This site is recommended not eligible for the NRHP/CRHR under Criterion A/1 because it is not associated with events that have made a significant contribution to the broad patterns of our history. It is recommended not eligible for the NRHP/CRHR under Criterion B/2 because it is not associated with the lives of persons significant in our past; this refuse scatter cannot be linked to particular people. It is recommended not eligible for the NRHP/CRHR under Criterion C/3 because it does not embody distinctive design or artistic characteristics; it is an unstructured refuse deposit. As a resource that is lacking in complexity and is not associated with specific people or events, it is not likely to yield information important to history, and it is recommended not eligible for the NRHP/CRHR under Criterion 54 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California D/4. Site SWCA-44489-S-999 is recommended not eligible for the NRHP or CRHR. Therefore, the project will result in no impact or adverse effect on this resource. IID/CVWD STUDY AREA CULTURAL RESOURCES SENSITIVITY ASSESSMENT SWCA undertook several records searches as part of the investigations for this project in 2006, 2017, 2020, and 2021. These are addressed in detail as part of the associated reports (Sikes and O'Neil 2006; Martinez and Nicolay 2017) and elsewhere in this document. Those record searches were centered on the project APE west of Monroe Avenue, and while they did not directly cover the IID/CVWD Study Area, some of the results do overlap the study area. In total, 47 cultural resources have been previously documented within the IID/CVWD Study Area, consisting of 16 sites and 31 isolates. Of these, four are recommended eligible for the NRHP and CRHR, three are recommended ineligible and the rest have unknown eligibility or remain unevaluated. In addition, there is a high density of cultural resources in and around the western edge of the IID/CVWD Study Area. For example, previously recorded site CA-RIV-5211/H is south of Avenue 60 in the northwest quarter of Section 35. The site was first recorded in 1987 as a ceramic sherd scatter with fire - affected rock and a ground stone mano fragment. When it was revisited in 1998, over 500 ceramic sherds were identified, along with several discrete lithic debitage concentrations, projectile points, and ground stone tools. They also identified a habitation area near the middle of the site. Historic -era refuse associated with agricultural use of the area was also observed. Considering the proximity of other large sites nearby, it is possible that several of the sites are related and represent an extensive occupation. Several smaller sites as well as numerous isolates consisting of small collections of ceramic sherds are scattered throughout the vicinity, and in particular on the west side, of the IID/CVWD Study Area and could be associated with activities from larger sites. Potential for Prehistoric and Historic -Era Native American Archaeological Resources in the IID/CVWD Study Area Archaeologists agree that Native American settlements and activity occurred in higher concentrations around permanent water sources. One such source was Lake Cahuilla, which was a stable water source during the late Pleistocene and Holocene, with evidence of the lake up to 40,000 years ago, and with boundaries that were far larger than its current size. The significance of Lake Cahuilla to the Cahuilla is well documented in ethnographic works and oral history (Saubel and Elliott 2004). While no records search was undertaken for the study area, record searches for other projects did identify several prehistoric archaeological resources within the western portion of the study area (Temporary # LQ-S- 2/CA-RIV-5158, P-33-008331) and immediate vicinity as well as numerous isolated finds. Agricultural development since the 1870s may reduce likelihood of encountering intact prehistoric or historic -period Native American archaeological resources within the study area since the highest potential for the presence of prehistoric and historic -period Native American archaeological material is in undisturbed (i.e., native) sediments, which occur below the plow zone. The depth of these sediments has not been confirmed for the study area. However, because of the presence of known resources, the location of the study area within the lakebed, the likely location of Mauulmia relative to the study area, the and the surrounding dense archaeological landscape, the study area appears to have a high sensitivity for prehistoric and historic -era Native American resources. Potential for Historic -Era Archaeological Resources in the IID/CVWD Study Area The primary historic -era land use of the study area was agricultural. Historical topographic quadrangle maps show the progression of European settlement and agricultural development within the study area. Between 1904 and 1941, maps of the study area show no established buildings or property boundaries, 55 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California though several trails are present leading from Toro to the south to Coachella and Thermal to the northeast. Beginning in 1941, historical maps and aerials show several structures, all associated with agricultural development, as well as a few groves of citrus trees and date palms. This land use pattern has continued to the present. Many of the same structures visible on the historical quadrangles and aerials remain extant, although some plots of agricultural land have been abandoned. Without an updated records search it is unknown how many previously recorded historic -era sites are present within the study area. Considering the long historic record and large number of historic -era resources surrounding the project area, it is likely some historic -era resources are present within the study area. Furthermore, it is possible that historic -era archaeological resources could be preserved below the ground surface, including areas disturbed by agricultural use, although the probability is higher in undisturbed or deeply buried sediments. Specifically, there is potential to encounter structural remains, features, and artifacts associated with the historic -era agricultural or ranching use of the study area beginning in the 1870s. For these reasons, SWCA finds the project site has a moderate to high sensitivity for containing historic -era archaeological resources. SUMMARY AND RECOMMENDATIONS As a result of the current assessment, 37 previously recorded resources and nine new resources were identified within the project APE. Of the 37 previously documented resources, 16 are isolated finds (P- 33-008919, P-33-008920, P-33-008921, P-33-011347, P-33-011348, P-33-011349, P-33-011350, P-33- 014851, P-33-014852, P-33-014853, P-33-014856, P-33-014857, P-33-014858, P-33-014859, P-33- 017754, and P-33-017756) and are categorically not eligible for the NRHP and CRHR. The remaining 21 resources are archaeological sites. Six of these have unknown eligibility or have not been evaluated (P- 33-001334, P-33-001340, P-33-001351, P-33-013296, P-33-013297, and P-33-014987). Five sites have been recommended not eligible for listing in the NRHP or CRHR (P-33-001343, P-33-003875, P-33- 003876, P-33-005319, and P-33-005321), including one site within the ADI (P-33-001343). Ten sites have been recommended eligible. Nine of these are eligible as contributors to the MMRD (P-33-001331, P-33-003872, P-33-003873, P-33-003874, P-33-005323, P-33-014844, P-33-014845, P-33-014846, and P-33-014847) and one (P-33-014988) is individually eligible. None of these occur within the ADI. Six sites (P-33-001334, P-33-001340, P-33-001351, P-33-013296, P-33-013297, and P-33-014987) have unknown eligibility or have not been evaluated for listing in the NRHP or CRHR but will be avoided by project activities. If they cannot be avoided, additional investigation into the sites' eligibility must occur, recommendations made, and appropriate treatment implemented. It should be noted that four of the five resources previously recorded within the ADI (P-33-001340, P-33-001343, P-33-013296, and P-33- 014987) were not re -located during the field survey and are presumed destroyed or were originally misplotted and actually occur outside the ADI. Nine newly identified resources were documented within the APE. Of these, three are isolated finds (SWCA-ISO-44489-1006, SWCA-ISO-44489-1010, and SWCA-44489-ISO-990) and are not eligible for the NRHP or CRHR. The other six resources are archaeological sites (SWCA-S-44489-1000, SWCA-S- 44489-1004, SWCA-S-44489-1005, SWCA-S-44489-1007, SWCA-S-44489-1008, and SWCA-44489-S- 999); all six are recommended not eligible for the NRHP or CRHR. In addition, 47 cultural resources have been previously documented within the IID/CVWD Study Area, consisting of 16 sites and 31 isolates. Of these, four are recommended eligible for the NRHP and CRHR (Temporary No. LQ-S-1/CA-RIV5211/H, Temporary No. LQ-S-2/CA-RIV-5158, CA-RIV-6109, CA- RIV-6110, three are recommended ineligible (CA-RIV-6111/H, CA-RIV-6112/H, and CA-RIV-6115) and the rest have unknown eligibility. The IID/CVWD Study Area is considered to be highly sensitive for the presence of prehistoric and historic -era Native American resources and moderate to highly sensitive for the presence of historic -era cultural resources. 56 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California In sum, 10 historic properties (under Section 106 of the NHPA) or historical or archaeological resources (under CEQA) have been identified within the APE and four have been identified within the IID/CVWD Study Area. The project has been redesigned to avoid impacts and effects to eligible resources. The ADI, which includes all areas proposed for construction (including grubbing, grading, or other development) within the broader APE, completely avoids all resources that are eligible either individually or as contributors to the MMRD. These resources are now located within designated open space/restricted areas, which allows for their long-term protection and conservation. The specific parcel(s) for development within the IID/CVWD Study Area have as yet to be determined; however, site selection will be informed by a programmatic review of environmental factors and whichever project sites are selected will avoid historic properties and historical resources identified herein or in future supplemental studies. Given this, there will be no direct effects to historic properties or impacts to historical or archaeological resources. As noted in Martinez and Nicolay 2017, the project will also not result in indirect effects or impacts such as visual intrusion, vibration from construction, or other alterations to the character -defining features of eligible site CA-RIV-7394 or contributors to the MMRD. The IID/CVWD Study Area is considered to have moderate to high sensitivity for containing prehistoric and historic -period archaeological resources. To ensure a programmatic approach to site selection avoids previously unidentified cultural resources, SWCA recommends completion of a records search at the EIC, an updated Sacred Lands File search, and a pedestrian survey of the parcel or parcels to confirm the presence or absence of potentially sensitive cultural resources. SWCA also recommends continued outreach to local tribes to determine if tribal cultural resources may be impacted. If parcels with sensitive cultural resources cannot be avoided, additional archaeological testing of any known sites to determine boundaries and eligibility for listing in the CRHR and NRHP should be conducted prior to any development activities and monitoring of all ground -disturbing activities is recommended. With the implementation of the measures outlined below to ensure avoidance, SWCA recommends a finding of no adverse effect under Section 106 of the NHPA and less than significant impact to cultural resources under CEQA for this project. Avoidance and Mitigation Measures SWCA has prepared the following mitigation measures to ensure the protection of known and unknown cultural resources. The measures also reflect the results of AB52 consultation with the Agua Caliente Band of Cahuilla Indians, the Torres Martinez Desert Cahuilla Indians, and the City. With the implementation of the following mitigation measures, SWCA recommends that the proposed project will not have an adverse effect or a significant impact on cultural resources: ■ Retain a qualified archaeologist. Prior to ground -disturbing activities, HLD should retain a qualified archaeologist, defined as an archaeologist who meets the Secretary of the Interior's Standards for professional archaeology, to carry out all mitigation measures related to cultural resources. • Assign a compliance officer. HLD should assign a compliance officer for the project to ensure mitigation measures are in place and followed for the duration of the project. The compliance officer should prepare a monthly compliance report for distribution to the City, BOR, BLM, and interested Native American groups. The compliance officer may be the same person as the project archaeologist, or may be another qualified individual designated by HLD. • Prepare a monitoring and mitigation program plan. Prior to the commencement of ground disturbance, a Tribal Cultural Resources Monitoring and Mitigation Plan (Monitoring Plan) shall be prepared. The Monitoring Plan shall include, but not be limited to, strategies for avoiding 57 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California impacts to cultural resources, monitoring protocols for ground -disturbing activities, a worker training program, and discovery and processing protocols for inadvertent discoveries of cultural resources. The plan should detail protocols for determining circumstances in which additional or reduced levels of monitoring (e.g., spot checking) may be appropriate. The Monitoring Plan should also establish a protocol for communicating with the lead agencies and interested Native American parties. ■ Conduct a supplemental study for any additional project components not captured within the current analysis, if necessary. Prior to ground -disturbing activities in any areas outside the currently established APE, including but not limited to locations proposed for a substation and new well pads, a supplemental study including an updated records search at the EIC, updated Sacred Lands File search, and pedestrian survey, shall be conducted. If resources are identified and cannot be avoided, they shall be assessed for their eligibility for the NRNP and CRHR. Avoidance and minimization measures identified as a result of the study shall be incorporated into the Monitoring Plan. ■ Avoid environmentally sensitive areas. Where operationally feasible, all unevaluated and NRHP- and CRHR-eligible resources shall be protected from direct project impacts by project redesign (i.e., relocation of the ground disturbance, ancillary facilities, or temporary facilities or work areas). Avoidance mechanisms shall include temporary fencing and designation of such areas as environmentally sensitive areas (ESAs) for the duration of the proposed project. ESAs shall include the boundary of each historic property plus a 30-m (98 -foot) buffer around the resource. • Worker training. Prior to the commencement of ground -disturbing activities, typically at the project kick-off, the qualified archaeologist or their designee will provide cultural sensitivity training to construction crews. The training will provide information on regulatory requirements for the protection of cultural resources and the proper procedures to follow should unanticipated cultural resources discoveries be made during construction. Workers will be provided contact information and protocols to follow if inadvertent discoveries are made. Additionally, workers will be shown examples of the types of tribal cultural resources that would require notification of the project archaeologist. If necessary, the project archaeologist can create a training video, PowerPoint presentation, or printed literature that can be shown to new workers and contractors to avoid continuous training throughout the life of the project. • Monitoring for cultural resources. Prior to ground disturbance, an archaeological monitor, working under the supervision of the qualified archaeologist, and Native American monitors from the Agua Caliente Band of Cahuilla Indians and the Torres Martinez Desert Cahuilla Indians, shall be retained to monitor certain ground -disturbing activities. Monitoring will take place within or near ESAs or in other areas agreed upon by the archaeologist, City, and Native American monitor, and as identified in the Monitoring Plan. Monitoring activities will include examining the excavation of native soils as well as the disposal of spoils in certain areas. The duration, timing and location of the monitoring shall be determined by the qualified archaeologist and Native American monitors in consultation with the City as outlined in the Monitoring Plan. • Inadvertent cultural resources discoveries. In the event that cultural resources are exposed during excavation, work in the immediate vicinity of the find must stop until a qualified archaeologist can evaluate the significance of the find. Ground -disturbing activities may continue in other areas. If the discovery proves significant under CEQA (Section 15064.5f; PRC 21082) or Section 106 of the NHPA on federal land, additional work such as testing or data recovery may be warranted. Should any tribal cultural resources be encountered, additional consultation with California Native American Heritage Commission (NAHC)—listed tribal groups should be conducted immediately in coordination with the City and/or with the BLM and BOR if the discovery occurs on federal lands. 58 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California • Unanticipated discovery of human remains. If human remains are encountered, State of California Health and Safety Code Section 7050.5 states that no further disturbance shall occur until the Riverside County Coroner has made a determination of origin and disposition pursuant to PRC Section 5097.98. The Riverside County Coroner must be notified of the find immediately. Additional procedures for responding to the unanticipated discovery of human remains are outlined below. Modern Remains If the Coroner's Office determines the remains are of modern origin, the appropriate law enforcement officials will be called by the Coroner and conduct the required procedures. Work will not resume until law enforcement has released the area. Archaeological Remains If the remains are determined to be archaeological in origin, the appropriate protocol is determined by whether the discovery site is located on federally or non -federally owned or managed lands. Remains Discovered on Federally Owned or Managed Lands After the Coroner has determined that the remains are archaeological or historic in age, the appropriate BLM Palm Springs Field Office archaeologist must be called. If the find is located on BOR land, then the BOR must be called. The archaeologist will initiate the proper procedures under the Archaeological Resources Protection Act and the Native American Graves Protection and Repatriation Act (NAGPRA). If the remains can be determined to be Native American, the steps as outlined in NAGPRA, 43 Code of Federal Regulations [CFR] 10.6 Inadvertent discoveries, must be followed. Resumption of activity. The activity that resulted in the discovery of human remains may resume after a written, binding agreement is executed between the BLM and federally recognized affiliated Indian Tribe(s) that adopts a recovery plan for the excavation or removal of the human remains, funerary objects, sacred objects, or objects of cultural patrimony following 43 CFR Section 10.3(b)(1) of these regulations. The disposition of all human remains and NAGPRA items shall be carried out following 43 CFR 10.6. Remains Discovered on Non federally Owned/Managed Lands After the Coroner has determined the remains on non -federally owned or managed lands are archaeological, the Coroner will make recommendations concerning the treatment and disposition of the remains to the person responsible for the excavation or discovery, or to his or her authorized representative. If the Coroner believes the remains to be those of a Native American, he/she shall contact the California NAHC by telephone within 24 hours. The NAHC will notify the person it believes to be the most likely descendant (MLD) of the remains. The MLD has 48 hours after accessing the site of the discovery to make recommendations to the landowner for treatment or disposition of the human remains. If the MLD does not make recommendations within 48 hours, the landowner shall reinter the remains in an area of the property secure from further disturbance. If the landowner does not accept the descendant's recommendations, the owner or the descendent may request mediation by the NAHC. 59 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California REFERENCES CITED Blair, T., and J. McPherson 1994 Alluvial Fan Processes and Forms. In Geomorphology of Desert Environments, edited by A. Abrahams and A. Parsons, p. 354-402. Chapman & Hall, London. Bowersox, J. R. 1974 Paleoecology of Upper Lake Cahuilla, California: Geological Society of America Abstracts with Programs, Vol. 7, No. 3, p. 146. Dibblee, T., and J. Minch 2008 Geologic map of the Palm Desert & Coachella 15 minute quadrangles, Riverside County, California. Dibblee Geological Foundation Map DF -373. Scale: 1: 62,500. Hogan, Michael, Bai "Tom" Tang, Mariam Dandul, Laura Hensley Shaker, and Daniel Ballester 2004 Identification and Evaluation of Historic Properties: Coral Mountain Reservoir Project in the Coachella Valley, Riverside County, California. Report on file, Eastern Information Center, University of California, Riverside. Hruby, Zachary, Bai "Tom" Tang, Daniel Ballester, and Laura Hensley Shaker 2006 Identification and Evaluation of Historic Properties: Mountain View IV Windfarm Project, in the City of Palm Springs, Riverside County, California. Prepared for Dudek and Associates, Inc., Bureau of Land Management, Palm Springs -South Coast Office, and Coachella Valley Water District by CRM TECH, Riverside, California. Love, Bruce, Bai "Tom" Tang, Harry M. Quinn, and Richard H. Norwood 2002 Final Report on Archaeological Testing and Mitigation: The Trilogy at La Quinta Coral Mountain Project near the City of La Quinta, Riverside County, California. Report on file, Eastern Information Center, University of California, Riverside. Martinez, Mandi, and Erica Nicolay 2017 Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California. Delivered to Hofmann Land Development Company. SWCA Environmental Consultants, Pasadena, California. Morton, P. K. 1966 Geologic map of Imperial County, California: Report 7, California Division of Mines and Geology, Sacramento, California. 1977 Geology and Mineral Resources of Imperial County, California: County Report 7, California Division of Mines and Geology, Sacramento, California, 104 pp. Saubel, Katherine Silva, and Eric Elliott 2004 Isill hegwas wnxish = A Dried Coyote's Tail. Malki Museum Press, Banning, Califonria. Sikes, Nancy E., and Stephen O'Neil 2006 Class III Cultural Resources Inventory and Evaluation, Including Limited Subsurface Testing of Archaeological Site CA-RIV-7394, for the Proposed Travertine Development Project, City of La Quinta, Riverside County, California. Submitted to the South Central Coastal Information Center at California State University, Fullerton. Technical report on file at SWCA Environmental Consultants, Pasadena, California. Williams, R., J. Zimbelman, and A. Johnston 60 Addendum to the Supplemental Cultural Resources Technical Report for the Travertine Land Development Project, City of La Quinta, Riverside County, California 2006 Aspects of alluvial fan shape indicative of formation process: A case study in southwestern California with application to Mojave Crater fans on Mars. Geophysical Research Letters 33: L10201. 61 APPENDIX A (CONFIDENTIAL) Previous Cultural Resources Reports APPENDIX B (CONFIDENTIAL) Native American Consultation APPENDIX C (CONFIDENTIAL) California Department of Parks and Recreation 523 Forms