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HomeMy WebLinkAboutCDP 15-04; Caltrans R-O-W Slope Repair; Coastal Development Permit (CDP)EXTENDED PHASE I REPORT FOR CA-SDI-603/P-37-000603 LA COSTA CHEVRON DRAINAGE IMPROVEMENTS SAN DIEGO COUNTY, CALIFORNIA ll-SD-5 PM 44.00-R44.30 Prepared by: Kyle Garcia, Senior Archaeologist, Co-Principal Investigator - Historical and Prehistoric Archaeology Fatima Clark, Archaeologist, Lead Archaeological Surveyor PCR Services Corporation One Venture, Suite 150 Irvine, CA 92618 (949) 753-7001 Prepared for: Kevin Hovey Environmental Analysis Branch D Chief Caltrans District 11, Environmental Division 4050 Taylor Street, MS-242 Caltrans Encroachment Permit Rider: 11-146RW-0224 Encinitas, CA 1968 (photo-revised 1975) USGS 7.5-minute topographic quadrangle map CA-SDI-603/P-37-000603 (update) July 2014 i r SUMMARY OF FINDINGS Recent gully erosion within the boundaries of CA-SDi-603 has displaced marine-shell-bearing deposits and re-deposited the material within the California Department of Transportation (Caltrans) right-of-way (ROW). The erosion is caused by storm water runoff from Chevron Products Company's (Chevron) property. To halt the erosion, Chevron proposes to construct drainage improvements within the area of gully erosion, including the installation of a head wall, an energy dissipater with rip rap, and an above ground storm drain pipe within Caltrans' ROW. An Extended Phase 1 (XPl) study was conducted by PCR Services Corporation (PCR) in order to determine the presence or absence of intact archaeological deposits and to determine the nature, scale, and extent of the deposits (horizontal and vertical) at a portion of CA-SDi-603 where the drainage improvements are expected to occur. A total of 24 Shovel Test Pits (STPs) were excavated within the areas of the proposed drainage improvements. The XPI study yielded numerous prehistoric shell ecofacts, a small amount of prehistoric chipped stone artifacts, and many modern items. All 24 STPs were placed in active erosional areas and yielded cultural material from the prehistoric and/or modern era. Nineteen of the 24 STPs yielded prehistoric material intermixed with modern material. The XPI study has revealed that the prehistoric and modern material has been displaced, re-deposited, and intermixed due to the gully erosion caused by storm water runoff. No intact archaeological deposits or features were encountered during the XPI study and the areas where the drainage improvements are proposed consist of a highly disturbed and intermixed deposit that retains very poor integrity. Caltrans District 11 La Costa Drainage Improvements Project PCR Services Corporation. Table of Contents Page INTRODUCTION 1 Brief History of the Project 1 Nature and Purpose of the Archaeological Investigation 1 Dates of Fieldwork, Permits Acquired & Personnel Qualification 1 Arrangements for Curation of the Collection 2 Disposition of Human Bone, Associated Grave Goods, or Sacred Objects 2 Scope and Results of Native American Consultation and Monitoring 2 SITE CONTEXT 5 SCOPE OFWORK 7 Study Plan 7 Stantec's Geotechnical Investigations 7 XPI Methods 8 STUDY RESULTS 11 Justification for Unit Termination 11 Artifact Analysis 17 Soil and Stratigraphy Descriptions 18 Functional Interpretation of Site 19 SUMMARY AND CONCLUSIONS 19 REFERENCES CITED 20 APPENDICES Appendix A Artifact Catalog Appendix B DPR Site Form Update (CA-SDI-603) List of Figures Page Figure 1 Project Vicinity Map 3 Figure 2 Project Location Map 4 Figure 3 Project Site Map 9 Figure 4 Excavation Photographs 15 Figure 5 Project Location Photographs 16 Caltrans District 11 La Costa Drainage Improvements Project PCR Services Corporation. j List of Tables Page Table 1 CA-SDI-603 Excavation Summary 12 Table 2 NISP and Weight for Prehistoric Shell Ecofacts in Entire Collection 17 Table 3 NISP and Weight for Modern Items in Entire Collection 18 Caltrans District 11 La Costa Drainage Improvements Project PCR Services Corporation. 11 INTRODUCTION Brief History of the Project Recent gully erosion within the boundaries of CA-SDi-603 has displaced marine-shell-bearing deposits and re-deposited the material within the Caltrans ROW. The erosion is caused by storm water runoff from Chevron's adjacent property. To halt the erosion. Chevron proposes to construct drainage improvements within an area of gully erosion, including the installation of a head wall, an energy dissipater with rip rap, and an above ground storm drain pipe within Caltrans' ROW. The portion of the proposed project within the ROW is located in the City of Carlsbad. Additional improvements will be constructed on Chevron's adjacent property, which is located within the City of Encinitas (Figure 1, Project Vicinity Map). The project is depicted on the United States Geological Survey (USGS) Encinitas, CA 1968 (photo-revised 1975) 7.5-minute topographic quadrangle map within Section 33 of Township 12 South, Range 4 West as shown on Figure 2, Project Location Map. The project is located adjacent to the Interstate-5 (1-5) La Costa Avenue southbound off-ramp and near Batiquitos Lagoon. On July 24, 2013, PCR, as sub-consultant to Stantec, Inc. (Stantec) conducted an archaeological field survey within a portion of CA-SDi-603 and within Caltran's ROW (see Archer 2013). This survey yielded the identification of three areas of shell concentration within the surveyed area. The largest area of shell concentration is located between the bottoms of the slopes descending from Chevron's property and the 1-5 La Costa Avenue southbound off-ramp pavement. The second area of shell concentration coincides with an area of fresh debris flow from the erosion gully. It is located at the bottom of the erosion gully where the slope descending from Chevron's property flattens to almost level. The smallest area of shell concentration is located on the north bank of a shallow, older gully just up-slope from the confluence of this older gully with the new, deeply-incised erosion gully. It is partly obscured by a modern refuse dump (mostly bottles) (Archer 2013). All three ofthese areas of shell concentration are within the boundaries of CA-SDi-603 as mapped by Crabtree et al. (1963), and by Apple and Cleland (1994). Although the walls and bottom of the erosion gully were closely inspected, no shell ecofacts, artifacts, ash, or other archaeological material was visible. The debris flow contains abundant shell, however, and recent erosion has clearly displaced archaeological deposits. No archaeological material other than shell and no human remains were observed during the field survey (Archer 2013). Nature and Purpose of the Archaeological Investigation An XPI was conducted by PCR to determine the presence or absence of intact archaeological deposits and to determine the nature, scale, and extent of the deposits (horizontal and vertical) at a portion of CA-SDi-603 and specifically located where construction within the Caltrans ROW is proposed. The XPI is an extension of the archaeological survey or identification phase for archaeological resources, meeting the requirements of the California Environmental Quality Act of 1970 (CEQA) and the Public Resources Code (PRC) Section 5024. PRC Section 5024 requires state agencies to identify and protect state-owned resources that meet National Register of Historic Places listing criteria. It also requires Caltrans to inventory state-owned structures in its rights-of-way. Dates of Fieldwork, Permits Acquired & Personnel Qualification From May 6-9, 2014, PCR archaeologists, Mrs. Fatima Clark, Mr. Kyle Garcia, and Mr. Henry Chodsky conducted archaeological excavations within the proposed drainage improvements area at CA-SDi-603. Ms. Caltrans District 11 La Costa Drainage Improvements Project PCR Services Corporation. ^ Introduction July 2014 Vanessa Raya from the San Pasqual Band of Mission Indians served as the Native American monitor during the entire excavation. A Caltrans Encroachment Permit Rider (11-14-6RW-0224) was acquired by Chevron to accommodate the XPI investigation. Mrs. Clark earned a Bachelor of Arts degree in Anthropology from California State University, Fullerton. She has eight years of archaeological experience in the prehistoric archaeology of California, Arizona, and Peru. Mrs. Clark qualifies as a Lead Archaeological Surveyor for prehistoric archaeology per the Caltrans Programmatic Agreement (PA). Mr. Garcia earned a Bachelor of Arts degree in Anthropology from the University of California, Santa Barbara and has more than 11 years of experience in the prehistoric and historic archaeology of California. He has contributed his services to more than 350 projects (including surveys, research, test and data recovery excavations, and construction monitoring) at PCR that were subject to CEQA, NEPA, Section 106 of the NHPA, and/or local cultural resources guidelines or policies (including Caltrans standards). He is currently enrolled as a graduate student in the Department of Anthropology at California State University, Los Angeles in pursuit of a Master of Arts degree in Anthropology (Archaeology Option). Mr. Garcia qualifies as a Co- Principal Investigator for prehistoric and historical archaeology per the Caltrans PA. Mr. Chodsky earned a Bachelor of Arts degree in Anthropology from the University of California, Los Angeles and has six years of archaeological experience in California. He is currently enrolled as a graduate student in the Department of Anthropology at California State University, Los Angeles in pursuit of a Master of Arts degree in Anthropology (Archaeology Option). Mr. Chodsky qualifies as a Lead Archaeological Surveyor for prehistoric archaeology per the Caltrans PA. Mrs. Diana Gray conducted the laboratory artifact processing (sorting, counting, weighing, labeling, bagging) for this XPI study. Mrs. Gray has four years of California archaeology experience. She is currently enrolled as a graduate student in the Department of Anthropology at California State University, Los Angeles in pursuit of a Master of Arts degree in Anthropology (Archaeology Option). Arrangements for Curation of the Collection The artifacts collected at CA-SDi-603 during the XPI investigation were taken to PCR's laboratory in Irvine, California to be sorted, bagged, and cataloged and to assist in preparation of this report. PCR has made arrangements with the San Diego Archaeological Center (SDAC) to serve as the repository for the collection. PCR has complied with SDAC's Collection Preparation Guidelines in preparation ofthe XPI artifact collection. Disposition of Human Bone, Associated Grave Goods, or Sacred Objects The XPI investigation did not yield the identification of human bone, associated grave good or sacred objects. Scope and Results of Native American Consultation and Monitoring Initial Native American consultation letters were sent to the 20 Native American contacts identified by the NAHC during the preparation of the Archaeological Survey Report (ASR) (see Archer 2013), and follow up phone calls were made. Responses were received from three of the 20 contacts. Frank Brown, Tribal Historic Preservation Officer for the Viejas Band of Kumeyaay Indians and Coordinator for the Inter-Tribal Caltrans District 11 La Costa Drainage Improvements Project PCR Services Corporation. 2 \ 2,1X10 Fast 0 GflQ tAeltPs Proi^t Location Map LB Cmld Ehovrcn Pfl'rviH IHIpra'rtiMinTI Picjm Euunu Uta Tnp^-ipM CrU, jbn.lil* 'f\ Pi k^rrvan InrmHBllwn ^IlLfl • \aLat 2 July 2014 Site Context Cultural Resource Protection Council, expressed concern due to the presence of ancient village sites in the proposed project area from which Native American human remains have been collected in the past. He suggested archaeological test excavations prior to construction and the presence of a Native American cultural monitor during construction. Representatives of Campo Band of Mission Indians and of the Ewiiaapaayp Tribal Office responded and indicated that they had no comments. On November 18, 2013 consultation letters were sent once more to the 20 Native American contacts to solicit comments to be addressed in the second draft of the XPI proposal for Caltrans' review. On December 5, 2013 a follow-up consultation e-mail was submitted to the 17 Native American contacts that did not previously provide comments. On December 10, 2013, Kristie Orosco from the San Pasqual Band of Mission Indians and representing the Kumeyaay Cultural Repatriation Committee (Committee) contacted PCR by phone. Ms. Orosco requested a consultation site visit by the Committee and direct consultation with the lead agency (i.e., the City of Encinitas), and noted that preservation of the site is very important to the Committee since Native American human remains had been previously recovered from the site. Ms. Orosco also requested a qualified Kumeyaay monitor to be present during XPI excavations and during construction of the Project. On March 14, 2014, a site meeting was held atthe project site perthe request of Ms. Orosco in orderto gain a better understanding of where the proposed drainage improvements would occur in relation to CA-SDi-603. Several representatives including Mrs. Clark from PCR, Ms. Orosco and Danielle Goff from the San Pasqual Band, Larry Tidball from Stantec, Pam Drew from the City of Carlsbad, and Tom White and Jesann Spani from Chevron attended the site meeting. A Caltrans Encroachment Permit Rider (11-6-RT-140040) was acquired for the site meeting. Ms. Orosco mentioned that she believed there is a high probability of finding human remains during construction because two burials had been previously found within the boundaries of CA- SDi-603. Ms. Orosco requested another site meeting to allow for other Native American representatives to provide their comments and concerns for the proposed project. On March 26, 2014, another site meeting was held at the project site. Mrs. Clark and Kyle Garcia from PCR, Ms. Orosco and David Toler, Councilman from the San Pasqual Band, and Mr. Tidball from Stantec attended the meeting. PCR explained to Ms. Orosco and Mr. Toler that the proposed drainage improvements area within the gully had the least potential for encountering intact archaeological deposits as opposed to other areas on the bluff, as this area had been highly disturbed and eroded. Mr. Toler agreed that the proposed drainage improvements area was the best location for the work, as he mentioned that fill was present on the bottom of the bluff and that this was probably the result of the 1-5 expansion. At the end of the meeting, PCR and the San Pasqual Band agreed that a Native American monitor would be present during the XPI work at CA-SDi-603. Ms. Vanessa Raya from the San Pasqual Band of Mission Indians served as the Native American monitor during the fieldwork component of the XPI investigation. SITE CONTEXT The target area of the proposed XPI investigations is located within the boundaries of prehistoric Native American archaeological site CA-SDi-603. Whereas this area is at the foot of a bluff, previous investigations of the site were conducted on the bluff top, and these investigations are summarized to provide context. Caltrans District 11 La Costa Drainage Improvements Project PCR Services Corporation. ^ Site Context July 2014 A 1959 site record prepared by C. N. Warren described the site as a "dark midden with shell overlay of limey hardpan" where choppers and manos were found. Extensive archaeological excavations were conducted at the site in 1960-1961 (Crabtree et al. 1963), in 1993 (Apple and Cleland 1994) and in 2002 (Laylander and Becker 2004). Archaeological monitoring was conducted at CA-SDi-603 in 2007 (Robbins-Wade 2012). Crabtree et al. (1963) described CA-SDi-603 as located on a coastal mesa along a small, south-north flowing creek where it enters a small embayment on the south shore of Batiquitos Lagoon. In 1960, the archaeological deposits are known to have extended for 0.5 kilometers (0.3 miles) along the creek and embayment shore. The 1960-1961 excavations encountered four strata with marine shell middens to depths up to 137 centimeters (54 inches) below the surface (Crabtree et al. 1963). Twenty-three "stone features" were also excavated of which at least nine were identified as hearth remnants. A human burial without grave goods was excavated in an area south of La Costa Avenue.^ The 1993 excavations by Apple and Cleland (1994) included placing 18 archaeological Shovel Test Pits (STPs) at CA-SDi-603. Thirteen of them were placed along the south side of La Costa Avenue and the other five were placed along the north side of La Costa Avenue, but outside from the proposed work boundaries. The 2002 Phase II excavations by Laylander and Becker (2004) were conducted to evaluate if portions of CA- SDi-603 were potentially eligible for the National Register of Historic Places. The excavations consisted of placing a total of eight units; four north of La Costa Avenue and the other four south of La Costa Avenue. In the units north of La Costa Avenue, stratified midden was found to depths of 80-90 centimeters with the upper 20-30 centimeters disturbed. Four marine shell specimens were radiocarbon dated to: 5450±70 BC (7400±70 BP), 6200±70 BC (8150+70 BP), 6380±70 BC (8330±70 BP), and 6500±70 BC (8450+70 BP). These dates placed the occupation at the site within the early La Jolla (Archaic) period. The results of the testing revealed that the excavated portions "appear to be eligible for the National Register" and that they also appear "to retain a potential to make further significant contributions to regional prehistory" (Laylander and Becker 2004: xv-xvi). In 2007, Affinis conducted archaeological monitoring during re-development of the Chevron gas station property that yielded marine shell, five mano fragments and a hearth during construction (Robbins-Wade 2012). As discussed earlier, a recent pedestrian survey at CA-SDi-603 was conducted by PCR (see Archer 2013). The field survey was limited to the eroded gully vicinity within the Caltrans ROW adjacent to Chevron's property. A roughly rectangular area measuring 62 meters (203 feet) along the Chevron property line and 30.5 meters (101 feet) wide (an area of 0.5 acre) was surveyed and a reconnaissance of nearby adjacent areas was conducted. Artifacts observed during the field survey consisted of unworked marine shells and unworked marine shell fragments. Chione sp. and Pecten sp. were noted. Three areas of shell concentration were identified. All three of these areas of shell concentration are within the boundaries of CA-SDi-603 as mapped by Crabtree et al. (1963), and by Apple and Cleland (1994). Although the walls and bottom of the erosion gully were closely inspected, no shell ecofacts, artifacts, ash, or other archaeological material was visible. The debris flow contains abundant shell, however, and recent erosion has clearly displaced archaeological deposits. No archaeological material other than shell and no human remains were observed during the field survey. ' The burial was a primary inhumation ofayoung adult female, flexed on the leftside, with the head to the northwest and facing east Caltrans District 11 La Costa Drainage Improvements Project PCR Services Corporation. ^ O July 2014 Scope of Work SCOPE OF WORK Study Plan According to the Study Plan in the XPI proposal, there are two areas known to contain archaeological deposits (specifically, surface shell ecofact scatter/concentration) that are located near the proposed drainage improvements area. These areas would be classified as an Environmental Sensitive Area (ESA) and would therefore be protected from any impact from the XPI fieldwork through avoidance. The Study Plan also mentioned that archaeological excavations were to be conducted at three locations: (1) the location of a proposed rip rap dissipater and straight headwall, (2) the location of a surficial concentration of marine shell adjacent to the proposed above ground storm drain pipe and (3) the location of the access route zone. A total of 19 Shovel Test Pits (STPs) were to be excavated, including an array of nine STPs in and around the footprint of the proposed dissipater and headwall; and array of nine STPs within the proposed access route zone, and one STP in the shell concentration adjacent to the proposed storm drain. The STPs would be 30 centimeters (cm) in diameter and they were to be excavated by using a shovel or posthole digger in 10 cm levels. All excavated matrix (soil) was to be dry-screened through a i/s-inch hardwire mesh screens. The proposed access route zone was to be intensively surveyed as part of the XPI study prior to the excavation of STPs in this area. If no intact archaeological deposits were discovered in any of the STPs, excavations would be concluded. If archaeological deposits were discovered in any of the STPs in the dissipater area, a l-meter-by-2-meter trench would be excavated in that area to further investigate the deposit. If archaeological deposits were discovered in the STP in the shell concentration, a 1-meter-by-l-meter unit would be excavated in that area to further investigate that area. Upon completion of all necessary fieldwork and documentation, all excavations were to be manually backfilled using shovels to replace the excavated and screened matrix. Stantec's Geotechnical Investigations Stantec's geotechnical investigations were not outlined in the XPI proposal as this work was not anticipated by PCR. On May 5, 2014, Larry Tidball from Stantec contacted Caltrans archaeologist, Koji Tsunoda via e- mail regarding their proposed geotechnical study during archaeological excavations at CA-SDi-603. Mr. Tidball explained to Mr. Tsunoda that the geotechnical study was necessary so that the anchors that would support the down pipe and the footing for the pipe headwall at the dissipater could be designed for the repairs of the slope. Mr. Tidball also mentioned that the specific locations of soil exploration would be conducted on the pipe route and the location of the dissipater. As a result of this coordination between Mr. Tidball and Mr. Tsunoda, it was agreed that prior to Stantec conducting their geotechnical investigation, PCR would place an STP in the approximate location of the proposed auger hole to determine whether an intact cultural deposit was present (see Figure 4, Photograph 3). The geotechnical investigation consisted of the manual excavation of several holes with a metal auger drill that measured approximately 3 inches in diameter and were excavated approximately 7 feet deep. As a result of the geotechnical investigation, PCR excavated five additional STPs that were not included in the XPI proposal. Four of these STPs were placed along the pipe route and one was placed along the rip rap dissipater area (see Figure 3, Project Site Map). Caltrans District 11 La Costa Drainage Improvements Project PCR Services Corporation. y Scope of Work July 2014 XPI Methods Fieldwork A total of 24 STPs were excavated by PCR as shown on Figure 3, Project Site Map. Ten STPs were placed in and around the footprint of the proposed rip rap dissipater and headwaU, one of which was excavated for Stantec and was not previously included in the XPI proposal. Four STPs were placed along the pipe route for Stantec, which were not previously included in the XPI proposal. Nine STPs were placed within the access route zone and one STP was placed within the shell concentration adjacent to the proposed storm drain, per the XPI proposal (Figure 4, Excavation Photographs, Photographs 1-4). As discussed above, the STPs were 30 centimeters in diameter and were excavated with shovels in 10-cm levels below the ground surface. All excavated soil was dry-screened through i/s-inch hardwire mesh screens. The excavations were documented with notes, digital photographs, and a sub-meter Global Positioning System (GPS) receiver unit. Detailed STP field forms were prepared to document excavation activities, including soil descriptions (using Munsell Color Chart), presence/absence of artifacts, and reason for termination of excavation. Artifacts and other specimens encountered during the archaeological testing were collected. The collected artifacts were bagged, tagged, and logged by unit, level, stratum, feature, and type (chipped stone, ground stone, faunal bone, faunal shell, etc.) as appropriate. After PCR excavated the STPs, Stantec was allowed to conduct their geotechnical investigations in those specific areas. PCR also dry-screened the soil from the spoils pile created by Stantec's auger drilling. Once the augering and STP excavations were finished at each location, the holes were backfilled using shovels and returned to pre-excavation conditions. Since the horizontal site boundaries for CA-SDi-603 had already been established by previous researchers, PCR attempted to define the subsurface, or vertical, boundaries of the site in the specific locations of the proposed drainage improvements by excavating the STPs to depth. Seven of the nine STPs excavated in the access route zone were only excavated to 30 cm below surface (bs) since these seven STPs were located on a steep slope and this area would not be impacted by future subsurface excavations from the proposed drainage improvements. The only impacts anticipated for this specific area of the access work zone would be foot traffic and the use of sled to transport equipment up and down the slope which would result in minimal subsurface impacts to CA-SDi-603. The remaining 18 STPs were excavated to either 50. 60, 70, or 80 cmbs and were terminated based on whether the STP was culturally sterile, further excavation was not feasible, or an impenetrable substrate was encountered. The proposed access route zone was also intensively surveyed as part of the XPI study. This survey included transects spaced at no more than 1 to 2 meters between surveyors. During the survey of the access route zone, the ground surface was closely examined by PCR for archaeological materials. Most of the access route zone was covered with dense vegetation consisting of seasonal grasses, cacti, and Manzanita trees; therefore, the ground surface visibility varied from poor (zero to 15 percent) to fair (50 to 75 percent). A low-density shell ecofact scatter whose shell constituents were eroding downslope from the top of the bluff was identified during the survey. A GPS unit was used to map the artifacts/ecofacts identified and detailed notes and digital photographs were taken. None of the artifacts/ecofacts were collected from survey of the proposed access route zone. The STP locations within the access route zone were chosen in the field after the intensive pedestrian survey was conducted. Specific locations within the access route zone were chosen based on artifact yields and were placed approximately two-to-five meters apart from each other. Caltrans District 11 La Costa Drainage Improvements Project PCR Services Corporation. g Project Site Map IS 30 Feet 0 S 10 Melere Project Site Map U Co»l« Chevron Oralnaft Improvement * Profect Scope of Work July 2014 This page is intentionally blank. Caltrans District 11 La Costa Drainage Improvements Project PCR Services Corporation. July 2014 Study Results The excavation of a l-meter-by-2-meter trench in the dissipater and a 1-meter-by-l-meter unit in the shell concentration area was not warranted. In total, PCR expended approximately 112 hours during the fieldwork component of the XPI investigation. Laboratory Work The artifacts/ecofacts were brought to PCR's archaeological laboratory in Irvine, California to be sorted and cataloged. Modern (less than 50 years old) items were sorted and cataloged separate from the prehistoric material but will be discarded later per SDAC curation guidelines. Artifacts with identical provenience (unit, level, feature etc.), artifact type, material type, and attribute, were grouped together, counted and weighed, and placed in curation-quality plastic zip-top bags. Each bag was given an artifact label (made from acid-free archival paper) and assigned a unique catalog number beginning with "001". The artifact information was cataloged in a Microsoft Excel spreadsheet that will include provenience information, artifact class, object, type, subtype, material, condition, date collected, count, and weight for each catalog entry. STUDY RESULTS The XPI study yielded numerous prehistoric shell ecofacts (n=1,345), a small amount of prehistoric chipped stone artifacts (n=9), and many modern items (n=534). All 24 STPs yielded cultural material from the prehistoric and/or modern era. Nineteen of the 24 STPs yielded prehistoric material intermixed with modern material while the remaining five STPs (STP 18, 21-24) only yielded prehistoric material. The five STPs that only yielded prehistoric material are located on the slope of the access route zone. Small amounts of faunal remains^ (n=5; pocket gopher, small fauna, and Rodentia) and charcoal (2.1 g) were also recovered from several of the STPs but are of unknown origin and age. It is likely that most of the faunal remains are derived from modern intrusive burrowing rodents. Ninety-nine percent of the prehistoric and modern material was fragmentary and approximately 95% ofthat material consists of very small fragments (e.g., 0.5 to 1.5 cm in diameter). No features were encountered in any of the STPs. The excavation results are summarized in Table 1, CA-SDi-603 Excavation Summary. The spatial distribution of the excavation units are displayed on Figure 3. An artifact catalog is provided in Appendix A and an updated the DPR Site Form for CA-SDi-603 to include the results of the XPI study is provided in Appendix B of this report. For specific artifact counts by STP unit and level, see Appendix A. Justification for Unit Termination The 14 STPs (STP 1-6, 8-15) within the proposed rip rap dissipater and headwall area and along the proposed pipeline route were excavated to ending depths ranging from 50 to 80 cm and were terminated due to culturally sterility^ or if further excavation was not feasible". The STP (STP 7) within the surficial concentration of marine shell was excavated down to 80 cm and was terminated since further excavation was not feasible. The STPs (STP 16 and 17) at the base of the slope within the access route zone were ^ Non-human animal bone ^ For the purposes of this study, cultural sterility is defmed as a STP unit that lacks an intact archaeological deposit. '' Given the size limits ofthe STP units, excavation with a shovel became too difficult to continue in the deeper levels. Caltrans District 11 La Costa Drainage Improvements Project PCR Services Corporation. ^ ^ Study Results July 2014 Table 1 CA-SDI-603 Excavation Summary Total Volume Excavation size (m) Excavated Items Level Reason for Unit LxWxD (m') Recovered? Contents (cmbs) Termination STP 1 .3x.3x.80 .072 Yes Shell 0-10 Further Excavation Shell 10-20 Not Feasible Shell 20-30 Plastic, brick mortar, calcite rock, shell 30-40 Rock, glass 40-50 Glass, shell 50-60 Glass, rubber, shell, rock, brick mortar. 60-70 asphalt Glass, brick mortar, plastic, shell 70-80 STP 2 .3x.3x.70 .063 Yes — 0-10 Further Excavation Shell 10-20 Not Feasible Shell, glass 20-30 Asphalt, shell, brick, ceramic, metal 30-40 Shell 40-50 Glass, flake, shell 50-60 Metavolcanic rock, glass, metal, shell 60-70 STPS .3x.3x.70 .063 Yes Glass, brick, shell 0-10 Further Excavation Rubber, brick mortar, plastic, shell 10-20 Not Feasible Brick, plastic, shell 20-30 Plastic, metal, shell 30-40 Glass, brick, ceramic, chert drill, quartzite 40-50 rock, shell Brick, metal, shell, brick mortar 50-60 Metal, shell 60-70 STP 4 .3x.3x.60 .054 Yes Shell, plastic, glass 0-10 Further Excavation Glass, shell 10-20 Not Feasible Brick fragment, metal, quartzite flake. 20-30 shell, glass Shell, brick, glass, metal 30-40 Shell, plastic, glass, ceramic, brick 40-50 Shell, brick mortar 50-60 STP 5 .3x.3x.80 .072 Yes Shell 0-10 Further Excavation Shell, plastic 10-20 Not Feasible Plastic, metal, brick, glass, flake, shell 20-30 Metal, brick, glass, ceramic, brick mortar, 30-40 undifferentiated rock, shell Glass, brick, metal, ceramic, shell 40-50 Metal, brick, glass, shell 50-60 Brick mortar, metal, shell 60-70 Metal, shell 70-80 STP 6 .3x.3x.60 .054 Yes — 0-10 Further Excavation Plastic, brick, metal, glass, shell 10-20 Not Feasible, Shell 20-30 Culturally Sterile Plastic, metavolcanic rock, brick, shell 30-40 Metal, glass, flake, shell 40-50 Metal, shell 50-60 STP 7 .3x.3x.80 .072 Yes Brick mortar, shell, flake 0-10 Further Excavation Plastic, shell 10-20 Not Feasible, Glass, shell 20-30 Culturally Sterile Metal, shell 30-40 Glass, metal, aluminum foil, aerosol can. 40-50 brick mortar, land snail, shell Plastic, glass, metal, aluminum foil, land 50-60 snail, shell, faunal bone Caltrans District 11 PCR Services Corporation. La Costa Drainage Improvements Project 12 July 2014 Study Results Table 1 (Continued) CA-SDI-603 Excavation Summary Total Volume Excavation Size(m) Excavated Items Unit LxWxD (m^) Recovered? Contents Level (cmbs) Reason for Termination Brick, asphalt, ceramic, plastic, glass, metal, aluminum can, shell, faunal bone Glass, plastic, brick mortar 60-70 70-80 STP 8 .3x.3x.60 .054 Yes Glass, shell Glass, brick, shell Shell 0-10 10-20 20-60 Cultural Sterility and Unstable Sandy Walls STP 9 .3x.3x.80 .072 Yes Shell Glass, shell Shell Asphalt, metavolcanic rock, land snail shell Shell, brick, glass Shell and glass Shell 0-10 10-20 20-30 30-40 40-50 50-60 60-70 Further Excavation Not Feasible, Culturally Sterile STP 10 .3x.3x.60 .054 Yes Shell Glass, asphalt, shell, vinyl Glass and shell 0-30 30-40 40-50 Culturally Sterile STP 11 .3x.3x.70 .063 Yes Brick, shell Shell, faunal bone, tile fragment Asphalt, shell, aluminum, brick mortar Shell 0-10 10-20 20-30 30-60 Further Excavation Not Feasible, Culturally Sterile STP 12 .3x.3x.60 .054 Yes Shell and metal Plastic, shell Mortar, shell, rock Shell Asphalt, glass, metal, shell 0-10 10-20 20-30 30-40 40-50 50-60 Culturally Sterile STP 13 .3x.3x.60 .054 Yes Shell, asphalt, plastic, charcoal, metavolcanic rock, flake Shell and asphalt Rubber, asphalt, shell Asphalt and shell Glass, metal, shell Metavolcanic rock, charcoal, land snail, shell 0-10 10-20 20-30 30-40 40-50 50-60 Culturally Sterile STP 14 .3x.3x.60 .054 Yes Shell, plastic 0-60 Culturally_Sterile STP 15 .3x.3x.60 .054 Yes Shell Shell and fiberglass Shell Asphalt, shell, plastic Plastic and shell Plastic, metal, glass, string fibers, shell 0-10 10-20 20-30 30-40 40-50 50-60 Culturally Sterile STP 16 .3x.3x.60 .054 Yes Glass, brick mortar, metal, shell Asphalt, metal, shell Wood, charcoal, shell Asphalt, plastic, metal, shell Asphalt, glass, shell Brick mortar, shell, land snail 0-10 10-20 20-30 30-40 40-50 50-60 Culturally Sterile STP 17 .3x.3x.50 .045 Yes Shell, mortar, glass, asphalt, plastic Mortar, tile, shell Mortar, asphalt, shell Asphalt, glass, shell, mortar Mortar, glass, plastic, shell, land snail 0-10 10-20 20-30 30-40 40-50 Culturally Sterile Caltrans District 11 PGR Services Corporation. La Costa Drainage Improvements Project 13 Study Results July 2014 Table 1 (Continued) CA-SDI-603 Excavation Summary Total Volume Excavation Unit Size (m) UWxD Excavated (m') Items Recovered? Contents Level (cmbs) Reason for Termination STP 18 .3x.3x.30 .027 Yes Shell fragments 0-20 Objectives achieved at 20 cmbs, as no earthmoving will occur in this area. STP 19 .3x.3x.30 .027 Yes Metal, shell fragments 22' LR shell casing Shell fragments 0-10 10-20 20-30 Objectives achieved at 30 cmbs, as no earthmoving will occur in this area. STP 20 .3x.3x.30 .027 Yes Brick mortar, rubber, shell shell 0-10 10-30 Objectives achieved at 30 cmbs, as no earthmoving will occur in this area. STP 21 .3x.3x.30 .027 Yes One whole shell Small shell fragments 0-10 20-30 Objectives achieved at 30 cmbs, as no earthmoving will occur in this area. STP 22 .3x.3x.l5 .014 Yes Small shell fragments 0-15 Impenetrable substrate STP 23 .3x.3x.30 .027 Yes shell 0-20 Objectives achieved at 20 cmbs, as no earthmoving will occur in this area. STP 24 .3x.3x.30 .027 Yes Small shell fragments 0-30 Objectives achieved at 30 cmbs, as no earthmoving will occur in this area Source: PCR Services Corporation, Juiy 2014 excavated to 50 and 60 cm and were terminated due to lack of an identifiable cultural deposit in the STP sidewall. As discussed earlier, the seven STPs (STP 18 - 24) located on the slope within the access route zone were only excavated to a maximum of 30 cmbs since these seven STPs were located on a steep slope and this area would not be impacted by future subsurface excavations from the proposed drainage improvements (see Figure 4, Excavation Photographs, Photograph 2 and Figure 5, Project Location Photographs, Photograph 7). The only impacts anticipated for this specific area of the access work zone would be foot traffic and the use of a sled to transport equipment up and down the slope which would result in minimal subsurface impacts to this specific area of CA-SDi-603. The safety hazards posed to the archaeologists from working on a steep slope was also a determining factor for limiting the excavation depth on the slope. One of the STPs on the slope, STP 22, was terminated at 15 cmbs due to an impenetrable compact siltstone layer that made further excavation infeasible. Caltrans District 11 PCR Services Corporation. La Costa Drainage Improvements Project 14 Phori:qrfl[.h I Cf^tr^ ev- ol eTLiv.ijuU I I's fl •^nQ ihe 'iHlpinl oP Ihe p'DDOwd di&&ipa?Br and heddv-dH VI»LV Pnolngrapi^ 3 Cloie-Ltfi DlSlP:jrvl*nowlrtfl *ar»ay KIIH and auger hiw plEcemenl wLhin iL fr^.ujrapr ^ t».t*vJlLifi *HNin aCLBM raule inne or. ihe SWpB, I -w . ^ - PnoiQgrdph4 ClubB-ujj ofa-tavvLid 5TP view we^ Ejiuvation Photographs Im Pl .X—.rx ,.|L. |,:^^IDL' PthMograph Ovirv^hV ^'k-i .juiiy which n^^ dividend culturBl d«F»9iifl Blon^ LTip npitp di&sipBier, nesdihall, and omiviPM 9li?rrr* drain DIDB flrniia, view souiri J4 ^ Phslog'aph t>u?rv-Cw of smaller P'oiLnnnI gy|ly rlwr shell CDncenlrallon ^hotvihg madem miitffial BiMinQ down (pin flag deraiBB hjoetion of STP 6>, vl*^ w«il FVnogiapM J Ov*oi*w acuaa cc .1: J , i>evf aouLleaa a ccQ» COnnMCbcm UTAiUi" yew north^^';! 1 PrD|«l LDUik>n PhotDgraphs 5 1 July 2014 Study Results Artifact Analysis The diversity of shellfish taxa for the entire XPI collection is summarized by the Number of Individual Specimens (NISP) and weight (in grams) per taxa in Table 2, NISP and Weight for Prehistoric Shell Ecofacts in Entire CoUection. The prehistoric shellfish assemblage is predominantly characterized by estuarine/lagoonal species such as Chinoe sp. (venus clam), Chione undatella (wavy venus clam), Clinocardium nuttalli (cockle), Donax sp. (bean clam), Pecten sp., and Saxidomus nuttalli (Washington clam). In terms of NISP, estuarine species make up 91% (n=867) of the identifiable specimens (n=944) in the entire collection. Six percent of the identifiable shellfish are characterized by species found in rocky intertidal, rocky shore, intertidal and shallow subtidal zones such as Cholorstoma sp. (sea snail), Haliotis rufescens (red abalone), Haliotis sp. (abalone), Megastrea undosa (wavy top snail), Mytilus californianus (California mussel), and Septifer bifurcatus (platform mussel). Given the very small fragmentary nature of the shellfish assemblage, 29% (n=401) of the collection was not identifiable to species. Table 2 NISP and Weight for Prehistoric Shell Ecofacts in Entire Collection Shellfish Taxa (Scientific Name) Common Name NISP % of NISP Weight (g) % of Weight Chione sp. Venus Clam 369 27.43% 431.7 57.45% Chione undatella Wavy venus clam 49 3.64% 78.5 10.45% Chlorostoma sp. Sea snail 6 0.45% 7.8 1.04% C/inocardium nuttalli Cockle 51 3.79% 8.7 1.16% Donax sp. Bean clam 11 0.82% 2.4 0.32% Haliotis rufescens Red Abalone 1 0.07% 0.1 0.01% Haliotis sp. Abalone 2 0.15% 18.6 2.48% Land snail Land snail 25 1.86% 2.3 0.31% Megastrea undosa Wavy top snail 1 0.07% 0.2 0.03% Mytilus californianus California mussel 41 3.05% 11 1.46% Pecten sp. Scallop 371 27.58% 91.5 12.18% Saxidomus nuttalli Washington clam 16 1.19% 10.8 1.44% Septifer bifurcatus Platform Mussel 1 0.07% 0.7 0.09% shell, undiff. shell, undiff. 401 29.81% 87.1 11.59% TOTALS: 1,345 100% 751.4 100% Source; PCR Services Corporation, July 2014 The prehistoric chipped stone assemblage (n=9) is predominately characterized by flake debitage but also includes a possible drill fragment. The material types include milky quartz, metavolcanic, chert, and quartzite. The diversity of modern items encountered for the entire XPI collection is summarized by their NISP and weight per material type in Table 3, NISP and Weight for Modern Items in Entire CoUection. As shown in Table 2, the modern assemblage is predominantly characterized by modern fragmentary refuse items made from plastics, metals, rubber, asphalt, brick, and brick mortar, and glass. Caltrans District 11 PCR Services Corporation. La Costa Drainage Improvements Project 17 Study Results July 2014 Table 3 NISP and Weight for Modern Items in Entire Collection Material Type NISP %of NISP Weight (g) %of Weight Identifiable ltem(s)/Notes aluminum 8 1.50% 172.4 7.66% Aerosol can, can tab, foil asphalt 43 8.05% 199.6 8.86% brick 25 4.68% 675.1 29.98% Red brick, no maker's mark brick mortar 47 8.80% 318.5 14.14% ceramic 22 4.12% 138.2 6.14% fiberglass 1 0.19% 0.1 0.00% fibers 7 1.31% 0.4 0.02% Modern string glass 190 35.58% 613.3 27.23% Mostly undifferentiated, some bottle glass, 1 complete Anheuser-Busch bottle (manufacture date Is c. 1970s) metal 102 19.10% 114.9 5.10% Mostly undifferentiated, 90% are corroded, a few nails, one rifle shell casing plastic 77 14.42% 8.2 0.36% Grocery bags (n=30), few pieces of twine, and undifferentiated rubber 7 1.31% 1.2 0.05% vinyl 1 0.19% 0.5 0.02% wood/lumber 4 0.75% 9.5 0.42% TOTALS: 534 100% 2,251.9 100% Source; PCR Services Corporation, July 2014 Soil and Stratigraphy Descriptions STPs 1 through 17 are composed of similar soils throughout their units. The color of the soils in these units range from dark yellowish brown (10 YR 4/4), yellowish brown (10 YR 5/4 and 4/4), to brownish yellow (10 YR 6/6) per the Munsell Color Chart. The soils consist of a semi-compact sand made up of 70 to 90% sand, with small pebbles/gravels, silt, and clay making up the remaining constituents. The pebbles/gravels are rounded, subrounded, angular, and subangular in form and measure from 1 cm to 6 cm in diameter. Some botanicals such as roots were encountered in many of the units. Some units contain moisture in the uppermost levels and less in the lower levels. The soil from STP 18 through 24 exhibits a different texture than STPs 1 through 17 as the former STPs were placed on the slope of the access route zone. The soils in these units exhibit a higher silt content than sand (ranging from 60 to 70% silt) with small pebbles/gravels, sand, and clay making up the remaining constituents. A highly indurated siltstone was encountered in STP 22 at 15 cmbs which resulted in the termination of the unit. It is likely that this siltstone underlies the surficial loose silty soil that is intermixed with cultural constituents throughout the slope area. The silty soil appears to be eroding down from the top ofthe bluff. Other than the highly indurated siltstone encountered in STP 22, the stratigraphy and soils were relatively homogenous from the surface levels to the ending depths within each STP unit. In addition, 19 (STP 1-17, 19-20) of the 24 STPs yielded prehistoric material intermixed with modern material within individual levels from the uppermost levels (0-10 cmbs level) to the lowest levels (70 to 80 cmbs level)^. This suggests that ' The five STPs (STP 18,21-24] that only yielded prehistoric material are located on the slope ofthe access route zone. Caltrans District 11 PCR Services Corporation. La Costa Drainage Improvements Project 18 July 2014 Summary and Conclusions both the prehistoric and modern assemblages have been displaced and re-deposited by a natural and/or cultural process and exhibit a very poor integrity as a result. The process that caused the displacement and redeposition of the material was likely the gully erosion caused by storm water runoff. The original location of both the prehistoric and modern deposits was likely on top of the bluff and that are now actively eroding down into Caltrans ROW causing them to intermix (see Figure 5, Photographs 5 and 6). All 24 STPs were placed in active erosional areas and it is currently unknown how deep the intermixed and re-deposited materials extend as many ending levels in the STPs contained both prehistoric and modern items. No intact cultural deposits or features were encountered during the XPI study. Functional Interpretation of Site Given the limited extent of the XPI investigation and the highly disturbed context of the deposit, there are minimal functional interpretations of CA-SDi-603 that can be made. Based on the prehistoric shellfish assemblage, the prehistoric inhabitants of CA-SDi-603 consumed species that were locally available in coastal environments such as subtidal or intertidal zones and in estuaries or lagoons. Given the large percentage of estuarine/lagoonal species in the assemblage, it appears that the inhabitants focused their efforts on these species and it is possible they obtained them from the nearby Batiquitos Lagoon (see Figure 5, Photograph 8). Based on the XPI data set, the two shellfish taxa that were favored are Chinoe sp. (27% of total NISP) and Pecten sp. (27% of total NISP). Given the presence of several pieces of chipped stone debitage, it is likely that tool manufacture activities also took place at CA-SDi-603. One of the modern items, a whole beer bottle, exhibits embossings that can be dated to the 1970s so it is reasonable to assume that the modern items were deposited around this time or after. The type and fragmentary nature of the items suggests that it represents a modern refuse dump or scatter. SUMMARY AND CONCLUSIONS The XPI study yielded numerous prehistoric shell ecofacts, a small amount of prehistoric chipped stone artifacts, and many modern items (e.g., brick, brick mortar, glass, metals, plastic, ceramic, and rubber). Given the large percentage of estuarine/lagoonal species in the assemblage, it appears that the prehistoric inhabitants of CA-SDi-603 focused their efforts on these species and it is possible they obtained them from the nearby Batiquitos Lagoon. All 24 STPs yielded cultural material from the prehistoric and/or modern era. In particular, 19 (STP 1-17, 19-20) of the 24 STPs yielded prehistoric material intermixed with modern material within individual levels from the uppermost levels (0-10 cmbs level) to the lowest levels (70 to 80 cmbs level). This suggests that both the prehistoric and modern assemblages have been displaced and re-deposited by a natural and/or cultural process and exhibit a very poor integrity as a result. The process that caused the displacement and redeposition of the material was likely the gully erosion caused by storm water runoff. The original location of both the prehistoric and modern deposits was likely on top of the bluff and that are now actively eroding down into Caltrans ROW causing them to intermix. All 24 STPs were placed in active erosional areas and it is currently unknown how deep the intermixed and re-deposited materials extend as many ending levels in the STPs contained both prehistoric and modern items. Caltrans District 11 La Costa Drainage Improvements Project PCR Services Corporation. References Cited July 2014 No intact archaeological deposits or features were encountered during the XPI study and the areas where the proposed drainage improvements are proposed consist of a highly disturbed and intermixed deposit that retains very poor integrity. The XPI study involved an adequate sample of test excavations across the proposed drainage improvement areas to achieve the project goals. Although the STPs reached a maximum depth of 80 cmbs, the disturbed and intermixed deposit is likely to extend to even greater depths since prehistoric and modern material were encountered in ending levels in multiple STPs. In addition, the large amount of sediment and intermixed cultural material that has eroded down from the bluff has deeply buried any native ground surface that would have potential to retain intact archaeological deposits, which greatly reduces the potential for the proposed drainage improvements to impact them. REFERENCES CITED Apple, R. M., and James H. Cleland 1994 Historic Property Survey Report for Widening La Costa Avenue Overcrossing. Prepared by KEA Environmental, Inc., San Diego, California. Prepared for Boyle Engineering, San Diego, California. Submitted to City of Carisbad, California. SCIC Manuscript 1124226. Archer, Gavin 2013 Archaeological Survey Report for Drainage Improvements Proposed by Chevron Products Company Along Interstate Highway 5 Near Batiquitos Lagoon, City of Encinitas, County of San Diego, California. Prepared by PCR Services Corporation, Irvine, California. Prepared for Chevron Products Company. Submitted to State of California Department of Transportation, San Diego; City of Encinitas, and City of Carlsbad. Crabtree, Robert H., Claude N. Warren, and D. L. True 1963 Archaeological Investigations at Batiquitos Lagoon, San Diego County, California. University of CaUfornia, Los Angeles, Archaeological Survey Report, Volume 5. Coyote Press facsimile reprint. Laylander, Don, and Mark Becker 2004 Archaeological Testing at Twelve Prehistoric Sites (SDI-603, -628, -4553, -6831, -6882, -10,965, - 12,120, -12,670, -13, 484, -15,678, -15,679, and -15,680) on the Central San Diego County, California. Prepared by ASM Affiliates, Inc., Encinitas, California. Prepared for California Department of Transportation, San Diego. SCIC Manuscript 1129362. Robbins-Wade, Mary 2012 Electronic message from Mary Robbins Wade, Director of Cultural Resources, Affinis, El Cajon, California, to Mariana Bacellar, Assistant Project Manager, Stantec, Irvine, California, regarding "La Costa Chevron Archaeology" and dated April 17, 2012. On file at PCR Services Corporation, Irvine, California. Caltrans District 11 La Costa Drainage Improvements Project PCR Services Corporation. 2 Q Appendix A - Artifact Catalog en. UnK Uvcl 0^,1 Cammon Itanw Cnt MU SDI-603 1 STP 1 60-70 Modem Modem artrfects fragments glass 2 1 D DG DiscanJed as modem trash SDI-603 2 STP 1 60-70 Modern Modem artifacts fragments rubber 1 3.1 D DG Discarded as modem trash SDI-603 3 STP 1 60-70 Unknown Rock, undiff. nack, undiff. fragments metavolcanic 1 1,6 DG/KHG SDI-603 4 STP 1 60-70 Modern Modem artifacts fragments brick mortar 3 0.7 D DG Discarded as modem trash SDI-603 5 STP 1 60-70 Modern Modem artifacts fragments asphalt 1 0.8 D DG Not artifactual SDI-603 6.1 STP 1 60-70 Prehistoric Shell ecofacts fragments Mytilus californianus Califomia mussel 6 2.2 DG/KHG SDI-603 6.2 STP 1 60-70 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 39 7.1 DG SDI-603 6.4 STP 1 60-70 Prehistoric Shell ecofacts fragments Chlorostoma sp. Sea snail 2 0.6 DG SDI-603 6.5 STP 1 60-70 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 15 8.3 DG SDI-603 6 6 STP 1 60-70 Prehistoric Shell ecofacts fragments shell, undiff. 14 2.4 DG SDI-603 7,1 STP 1 0-10 Prehistoric Shell ecofacts fragments Nacre/shell, undiff. 1 0.3 DG SDI-603 7.2 STP 1 0-10 Prehistoric Shell ecofacts fragments Septifer bifurcatus Platform Mussel 1 07 DG SDI-603 7.3 STP 1 0-10 Prehistoric Shell ecofacts fragments Clinocardium nuttalli Cockle 3 0.3 DG SDI-603 7.4 STP 1 0-10 Prehistoric Shell ecofacts fragments shell, undiff. 4 0.2 DG SDI-eo3 8,1 STP 1 10-20 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 5 0.5 DG SDI-603 8.2 STP 1 10-20 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 6 3,8 DG SDI-603 8.3 STP 1 10-20 Prehistoric Shell ecofacts fragments shell, undiff. 11 1.6 DG SDI-603 9.1 STP 1 20-30 Prehistoric Shell ecofacts fragments fiAytilus califorriianus California mussel 1 0.1 DG SDI-603 9.2 STP 1 20-30 Prehistoric Shell ecofacts fragments Clinocardium nuttalli Cockle 7 0.7 DG SDI-603 9.3 STP 1 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 4 10.4 DG SDl-aoa 9.4 STP 1 20-30 Prehistoric Shell ecofacts fragments shell, und'iff. 30 2.9 DG SDI-603 10 STP 1 30-40 Modern Modem artifacts grocery bag fragments plastic 2 0,1 D DG Discarded as modem trash SDI-e03 11 STP 1 30^0 Modem Modem artifacts fragments brick mortar 3 0.2 D DG Discarded as modem trash SDI-603 12 STP 1 30-40 Unknown Rock, undiff. fragments calcite 1 0.1 DG SDI-603 13.1 STP 1 30-40 Prehistoric SheU ecofacts fragments Clinocarrfi'um nutla'/f Cockle 6 0,4 DG SOI-603 13.2 STP 1 30-40 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 6 4.8 DG SDI-603 13.3 STP 1 30-40 Prehistoric Shell ecofacts fragments shell, undiff. 18 0.8 DG SOI-603 14 STP 1 40-50 Modern Modem artifacts fragments glass 2 0.4 D DG Discarded as modern trash SDI-603 15.1 STP 1 40-50 Unknown Rock, undiff. rock, undiff. fragments metavolcanic 1 2.9 DG/KHG SDI-603 15.2 STP 1 40-50 Unknown Rock, undiff, rock, undiff. fragments slate 1 0,6 DG/KHG SDI-603 16 STP 1 50-60 Modern Modem artifacts fragments glass 1 0,4 D DG Discarded as modem trash SDI-603 17.1 STP 1 50-60 Prehistoric Shell ecofacts fragments Clinocardium nuttalli Cockle 17 3.9 DG SDI-603 17.2 STP 1 50-60 Prehistoric Shell ecofacts fragments Mytilus californianus Califomia mussel 2 0.4 DG/KHG SDI-603 17.3 STP 1 50-60 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 4 5.3 DG SDI-603 17.4 STP 1 50-60 Prehistoric Shell ecofacts fragments shell, undiff. 7 0.9 DG SDI-603 18 STP 1 70-80 Modern ytodem artifacts fragments glass 1 0.8 D DG Discarded as modern trash SDI-603 19 STP 1 70-80 Modern Modem artifacts Vagments srick mortar 2 1 D DG Discarded as modern trash SDI-603 20.1 STP 1 70-80 Modem Modem artifacts iragments plastic 2 0.1 D DG Discarded as modern trash SDI-603 20.2 STP 1 70-80 Modem \/lodem artifacts qrocery bag fragments plastic 1 0,1 D DG Discarded as modern trash SDI-603 21.1 STP 1 7080 -•rehistoric Shell ecofacts 'rag ments Chione sp. Venus ciam 10 6.2 DG SDI-603 21.2 STP 1 70-80 Prehistoric Shell ecofacts 'ragments Pecfen sp. Scallop 19 2.5 DG SDl-e03 21.3 STP 1 70-80 Prehistoric Shell ecofacts Iragments Myfffus cslffomfanus California mussel 2 Q.5 DG SDI-603 21.4 STP 1 70-80 Prehistoric Shell ecofacts 'rag ments shell, undiff. 11 1.8 DG SDI-603 22.1 STP 2 10-20 Prehistoric Shell ecofacts 'ragments Saxidomus nuttalli Washington clam 3 1.1 DG SDI-e03 22.2 STP 2 10-20 Prehistoric Shell ecofacts 'ragments Clinocardium riutialli Cockle 4 0.4 DG SDI-603 23 STP 2 20-30 Modern Modern artifacts •ragments glass 1 0,3 D DG Discarded as modern trash SDI-603 24.1 STP 2 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 9 5.6 DG PCR Services Corporation 0«L <M|E> UnH ff Leva) tMMliiOlaH " •- - -y OiiaiiMn ttMW cut BH SDI-603 24.2 STP 2 20-30 Prehistonc Shell ecofacts fragments Pecten sp. Scallop 2 0,2 DG SDI-603 24.3 STP 2 20-30 Prehistoric Shell ecofacts fragments Mytilus californianus California mussel 1 0.3 DG SDI-603 24.4 STP 2 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 2 12.4 DG/KHG KG changed from C. succunta SDI-603 24.5 STP 2 20-30 Prehistoric Shell ecofacts fragments shell, undiff. 9 0.8 DG SDI-603 25 STP 2 3040 Modern Modem artifacts fragments asphalt 1 0.2 D DG Not artifactual SDI-603 26.1 STP 2 30-40 Prehistoric Shell ecofacts fragments Clinocardium nuttalli Cockle 6 1 DG SDI-603 2G.2 STP 2 30-40 Prehistoric Shell ecofacts fragments Nacre/shell, undiff. 1 0.4 DG SDI-603 26.3 STP 2 30-40 Prehistoric Shell ecofacts fragments shell, undiff. 2 0.2 DG SDI-603 27 STP 2 40-50 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 1 0.7 DG/KHG SDI-603 28 STP 2 50-60 Modern Modem artifacts fragments glass 1 0.8 DG SDI-603 29 STP 2 50-60 Prehistoric Chipped stone artifacts flake fragments metavolcanic 1 1.8 DG/KHG SDI-603 30.1 STP 2 50-60 Prehistoric Shell ecofacts fragments Clinocardium nuttalli Cockle 1 0.1 DG SDI-603 30.2 STP 2 50-60 Prehistoric Shell ecofacts fra^ents shell, undiff. 2 1.4 DG SDI-603 31.1 STP 2 40-50 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 2 0.8 DG MISSING BAG-KHG SDI-603 31.2 STP 2 40-50 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 4 0.4 DG MISSING BAG-KMG SDI-603 31.3 STP 2 40-50 Prehistoric Shell ecofacts fragments Haliotis rufescens Red Abalone 1 0.1 DG MISSING BAG-KHG SDI-603 31.4 STP 2 40-50 Prehistoric Shell ecofacts fragments Nacre/shell, undiff. 2 0.1 DG MISSING BAG-KHG SDI-603 31.5 STP 2 40-50 Prehistoric Shell ecofacts fragments shell, undiff. 4 0.3 DG MISSING BAG-KHG SDI-603 32 STP 2 60-70 Unknown Rock, undiff. rcick, undiff. fragments metavolcanic 2 4.6 DG/KHG SDI-603 33 STP 2 60-70 Modern Modem artifacts bottle fragments glass 1 0.4 0 DG Discarded as modern trash SDI-603 34 STP 2 60-70 Modern Modem artifacts rusted fragments metal 3 2.5 0 DG Discarded as modern trash SDI-603 35.1 STP 2 60-70 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 7 0.9 DG SDI-603 35.2 STP 2 60-70 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 4 1.2 DG SDI-603 35.3 STP 2 SO-70 Prehistoric Shell ecofacts fragments shell, undiff. 7 1.4 DG SDI-603 36 STP 2 30-40 Modern Modem artifacts fragments brick I 1.1 D DG Discarded as modern trash SDI-e03 37 STP 3 0-10 Modern Modern artifacts fragments glass 1 0.1 D DG Discarded as modern trash SDI-603 38 STP 3 0-10 Modern Modem artifacts fragments brick 1 0.8 D DG Discarded as modern trash SDI-603 39.1 STP 3 0-10 Prehistoric Shell ecofacts fragments Saxidomus nuttalli Washington clam 1 0.2 DG SDI-e03 39.2 STP 3 0-10 Prehistoric Shelt ecofacts fragments shell, undiff. 4 0.6 DG SDI-603 40 STP 3 10-20 Modern Modem artifacts fragments rubber 2 0.5 D DG Discarded as modern trash SDI-603 41 STP 3 10-20 Modern Modem artifacts fragments brick mortar 1 1.6 D DG Discarded as modern trash SDI-603 42.1 STP 3 10-20 Modem Modem artifacts grocery bag fragments piaatic 1 0.1 D DG Discarded as modern trash SDI-603 42.2 STP 3 10-20 Modern Modem artifacts fragments plastic 2 0.2 D DG Discarded as modern trash SDI-e03 43.1 STP 3 10-20 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 7 0.8 DG SDI-603 43.2 STP 3 10-20 Prehistoric Shell ecofacts fragments Chione undatella Wavy venus clam 4 0.7 DG SDI-603 43.3 STP 3 10-20 Prehistoric Shell ecofacts fragments shell, undiff. 6 0.8 DG SDI-603 44 STP 3 20-30 fiflodern Modem arWacts fragments brick 1 5.3 D DG Discarded as modern trash SDI-603 45.1 STP 3 20-30 Modem Modem artifacts grocery bag Segments plastic 1 0.1 D DG Discarded as modern trash SDI-603 45.2 STP 3 20-30 Modern Modem artifacts fragments plastic 2 0.2 D DG Discarded as modern trash SDI-603 46.1 STP 3 20-30 Prehistoric Shell ecofacts 3urnt fragments Mytilus californianus California mussel 1 0.6 DG/KHG burnt SDI-603 46.2 STP 3 20-30 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 1 0.3 DG SDI-603 4G.3 STP 3 20-30 Prehistoric Shell ecofacts fragments Clinocardium nuttalli Cockle 1 0.2 DG SDI-603 46.4 STP 3 20-30 Prehistoric Shell ecofacts Fragments Chione undatella Wavy venus clam 8 4.3 DG SDI-603 47 STP 3 30-40 ^dern Modem artifacts fragments plastic 2 0.1 D DG Discarded as modern trash SDI-e03 48 STP 3 30-40 Modern Modem artifacts rusted fragments metal 2 1.3 D DG Discarded as modern trash SDI-603 49.1 STP 3 30-40 Prehistoric Shell ecofacts ragments Mytilus californianus Califomia mussel 2 0.2 DG/KHG SDI-603 49.2 STP 3 30-40 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 5 3 DG PCR Services Corporation llf« Una f t«nta.} EH M"li!al Clgil Ol4wtl Ot|M2 Cnt ».« ••etoaiWtfiMt SDI-e03 49.3 STP 3 30-40 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 7 0.6 DG SDI-603 49.4 STP 3 30-40 Prehistoric Shell ecofacts fragments shell, ur\diff. 7 0.5 DG SDI-603 50 STP 3 40-50 Modern Modem artifacts fragments glass 1 0.1 D DG Discarded as modern trash SDI-603 51 STP 3 40-50 Modern Modem artifacts fragments brick 1 1.7 D DG Discarded as modern trash SDI-e03 52 STP 3 40-50 Modern Modem artifacts fragments ceramic 1 1.1 D DG Discarded as modern trash SDI-603 53.1 STP 3 40-50 Prehistoric Chipped stone artifacts drill fragments chert 1 0.9 DB/KHG questionable, marron color SDI-603 53.2 STP 3 40-50 Unknown Rock, undiff. rock, undiff. fragments quartzite 1 0.5 DG/KHG SDI-e03 54.1 STP 3 40-50 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 7 1.2 DG SDI-603 54.2 STP 3 40-50 Prehistoric Shall ecofacts fragments Chione sp. Venus clam 7 5.3 DG SDI-603 54.3 STP 3 40-50 Prehistoric Shell ecofacts fragments shell, undiff. 2 0.2 DG SDI-603 55 STP 3 50-60 Modern Modem artifacts fragments brick 1 0.4 D DG Discarded as modern trash SDI-603 56 STP 3 50-60 Modern Modem artifacts rusted fragments metal 2 0.4 D DG Discarded as modern trash SDI-603 57 STP 3 50-60 Modern Modem artifacts fragments brick mortar 1 0.4 D DG Discarded as modern trash SDI-603 58.1 STP 3 50-60 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 2 0.5 DG SDI-603 58.2 STP 3 50-60 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 3 0.3 DG SDI-603 59 STP 3 60-70 Modern Modem artifacts rusted fragments metal 3 0.5 D DG Discarded as modern trash SDI-603 60.1 STP 3 60-70 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 2 0.2 DG SDI-603 60.2 STP 3 60-70 Prehistoric Shell ecofacts fragments Chlorostoma sp. Sea snail 1 0.1 DG SDI-603 61 STP 4 0-10 Modem Modem artifacts grocery bag fragments plastic 1 0.1 D DG Discarded as modern trash SDI-603 62.1 STP 4 0-10 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 9 12.6 DG SDI-603 62,2 STP 4 0-10 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 3 0.6 DG SDI-603 63 STP 4 10-20 Modern Modem artifacts bottle fragments glass 1 8.7 D DG Discarded as modern trash SDI-603 64.1 STP 4 10-20 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 5 3.3 DG SDI-603 64.2 STP 4 10-20 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 2 8.3 DG/KHG KG changed from C. succunta SDI-603 64.3 STP 4 10-20 Prehistoric Shell ecofacts fragments Saxidomus nuttalli Washington clam 2 1.3 DG SDI-603 64.4 STP 4 10-20 Prehistoric Shell ecofacts fragments Mytilus cdifornianus California mussel 1 0.1 DG/KHG SDI-603 64.5 STP 4 10-20 Prehistoric Shell ecofacts fragments shell, undiff. 2 0.3 DG SDI-e03 64.6 STP 4 10-20 Prehistoric Shell ecofacts fragments Chione undatella Wavy venus clam 7 1S.6 DG SDI-603 65 STP 4 20-30 Modern Modem artifacts fragments brick 1 190.1 D DG Discarded as modern trash SDl-e03 66 STP 4 20-30 Modern Modem artifacts fragments rubber 1 0.3 D DG Discarded as modern trash SDI-603 67 STP 4 20-30 Modern Modem artifacts fragments glass 1 0.3 D DG Discarded as modern trash SDI-603 68 STP 4 20-30 Modern Modem artifacts rusted fragments metal 1 4.1 D DG Discarded as modern trash SDl-e03 69 STP 4 20-30 Modem tiAodem artifacts fragments asphalt 1 1.3 D DG Not artifactual SDI-603 70 STP 4 20-30 Prehistoric Chipped stone artifacts flake fragments milky quartz 1 8 DG/KHG SDI-603 71.1 STP 4 20-30 Prehistoric Shell ecofacts fragments Saxidomus nuttalli Washington clam 1 1.5 DG SDI-603 71.2 STP 4 20-30 Prehistoric Sfiell ecofacts fragments Pecten sp. Scallop 12 3.3 DG SDI-603 71.3 STP 4 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 9 13.9 DG SDI-603 71.4 STP 4 20-30 Prehistoric Shell ecofacts fragments shell, undiff. 15 0.6 DG SDI-603 72 STP 4 30-40 Modern Modem artifacts fragments ' brick 1 24.7 D DG Discarded as modern trash SDI-603 73 STP 4 30-40 Modern Modem artifacts fragments asphalt 5 10 D DG Not artifactual SDI-603 74 STP 4 30-40 Modern Modem artifacts fragments plastic 2 0.3 D DG Discarded as modern trash SDI-603 75 STP 4 30-40 Modern Modem artifacts fragments fibers 2 0.1 D •G Discarded as nnodern trash SDI-603 76 STP 4 30-40 Modern Modem artifacts bottle fragments glass 2 5.5 D DG Discarded as modern trash SDI-603 77 STP 4 30-40 Unknown Rock, undiff. rock, undiff. fragments metavolcanic 1 3.5 DG/KHG SDI-603 78.1 STP 4 30-40 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 9 8.5 OG SDI-603 78,2 STP 4 30-40 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 1 5.7 DG/KHG KG changed from C. succunta SDI-603 78.3 STP 4 30-40 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 5 9.5 DG PCR Services Corporation m IMt UiiH En OblNtZ MM mnu SDI-603 78.4 STP 4 30-40 Prehistonc Shell ecofacts fragments Saxidomus nuttalli Washington ctam 2 0.1 DG SDI-603 79 STP 4 40-50 Moaern Modem artifacts fragments ceramic 1 26.1 D DG Discarded as modern trash SDl-803 80 STP 4 40-50 Modern Modem artifacts fragments brick 1 3.1 D DG Discarded as modern trash SDI-603 81.1 STP 4 40-50 Modern Modem artifacts fragments glass 1 1.9 D DG Discarded as modern trash SDI-603 81.2 STP 4 40-50 Modern Modem artifacts bottle fragments glass S 6.8 D DG Discarded as modern trash SDI-603 82.1 STP 4 40-50 Prehistoric Shell ecofacts fragments Chlorostoma sp. Sea snail 1 6.8 DG SDl-e03 82.2 STP 4 40-50 Prehistoric SheU ecofacts fragments Pacfen sp. Scallop 8 2.3 DG SOI-603 82,3 STP 4 40-50 Prehistoric Shell ecofacts fragments Clinocardium nuttalli Cockto 3 0.9 DG SDI-603 82.4 STP 4 40-50 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 17 18.8 DG SDI-e03 82.5 STP 4 40-50 Prehistoric Shell ecofacts fragments Mytilus californianus California mussel 1 0.3 DG/KHG SDI-603 82.6 STP 4 40-50 Prehistoric Shell ecofacts fragments Saxidomus nuttalli Washington ctam 3 2.5 DG SDI-603 82.7 STP 4 40-50 Prehistoric Shell ecofacts fragments shell, undiff. 4 1.7 DG SDI-e03 83 STP 4 50-60 Modern Modem artifacts fragments asphalt 2 6.2 D DG Not artifactual SDI-603 84 STP 4 50-60 Modern Modern artifacts fragments ceramic 1 3.5 D DG Discarded as modern trash SDI-603 85.1 STP 4 50-60 Modern Modem artifacts rusted fragments metal 3 5.5 D DG Discarded as modern trash SDI-603 85.2 STP 4 50-60 Modern Modem artifacts rusted fragments aluminum 1 0.2 D DG Discarded as modern trash SDI-603 86.1 STP 4 50-60 Modern Modern artifacts bottle fragments glass 3 6.2 0 DG Discarded as modern trash SDI-603 86.2 STP 4 50-60 Modern Modem artifacts fragments glass 1 0.5 D DG Discarded as modern trash SDI-603 87 STP 4 50-60 Modern Modem artifacts fragments fibers 2 0.1 D DG Discarded as modern trash SDI-603 88.1 STP 4 50-60 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 6 5.3 DG SDI-603 88.3 STP 4 50-60 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 1 5.1 DG/KHG KG changed from C. succunta SDI-603 88.4 STP 4 50-60 Prehistoric Shell ecofacts fragments Chione undatella Wavy venus clam 7 11.2 DG SDI-603 88.5 STP 4 50-60 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 4 8.5 DG SDI-603 88.6 STP 4 50-60 Prehistoric Shell ecofacts fragments Mytilus californianus Califomia mussel 2 1.1 DG/KHG SDI-603 88.7 STP 4 50-60 Prehistoric Shell ecofacts fragments shell, undiff. 4 1.1 DG SOI-603 89 STP 5 0-10 Prehistoric Shell ecofacts fragments Chione undatella Wavy venus clam 3 1.5 DG SDI-603 90 STP 5 10-20 Modern Modern artifacts fragments plastic 1 0.1 D DG Discarded as modern trash SDI-603 91 STP 5 10-20 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 1 0.1 DG SOI-603 92 STP 5 20-30 Modern Modem artifacts fragments plastic 1 0.1 D DG Discarded as modern trash SDI-603 93 STP 5 20-30 Modern Modem artifacts rusted fragments metal 3 2.1 D DG Discarded as modern trash SDI-603 94 STP 5 20-30 Modern Modem artifacts fragments brick 2 5.5 D OG Discarded as modern trash SDI-603 95 STP 5 20-30 Wtedern Modem artifacts fragments glass 2 0.3 D DG Discarded as modern trash SDI-603 96 STP 5 20-30 Prehistoric Chipped stone artifacts flake possible drill fragment chert 1 1.7 DG/KHG SDI-603 97.1 STP 5 20-30 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 2 0.7 DG SOI-603 97.2 STP 5 20-30 ^'rehistoric Shell ecofacts fragments Chione sp. Venus clam 3 9.7 DG/KHG KG changed from C. succunta SDI-603 97.3 STP 5 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 5 2.4 DG SDI-603 97,4 STP 5 20-30 Prehistoric Shell ecofacts fragments shell, undiff. 4 0.6 DG SDI-603 98 STP 5 30-40 Modern Modem artifacts rusted fragments metal 6 12.9 D DG Discarded as modern trash SDI-603 99 STP 5 30-40 Modern Modem artifacts fragments brick 1 0.5 D DG Discarded as modern trash SDI-603 100 STP 5 30-40 Modern Modem artifacts oottle fragments glass 2 6.2 D DG Discarded as modern trash SOI-603 101 STP 5 30-40 Modern Modem artifacts fragments ceramic 1 0.4 D DG Discarded as modern trash SDI-603 102 STP 5 30-40 Modern Modem artifacts fragments brick mortar 1 0.1 D DG Discarded as modern trash SDI-603 103.1 STP 5 30-40 Unknown Rock, undiff. rock, undiff. Fragments uknown 2 0.1 D DG/KHG Not artifactual SDI-603 103.2 STP 5 30-40 Unknown Rock, undiff. rock, undiff. fragments metavolcanic 1 0.4 DG/KHG SDI-e03 104.1 STP 5 30-40 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 12 5 DG SDI-603 104,2 STP 5 30-40 Prehistoric Shell ecofacts Fragments Chione undatella Wavy venus clam 16 31.1 DG SDI-603 104.3 STP 5 30-40 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 3 8.6 DG/KHG KG changed from C. succunta PCR Services Corporation ««. Ui« UnH ff INK . IMMWOlMt Oi4«t< >i«.MTn» Bw SDI-603 104.4 STP 5 30-40 Prehistonc Shell ecofacts fragments Chione sp. Venus clam 14 14.5 DG SDI-603 104.5 STP 5 30-40 Prehistonc Shell ecofacts fragments Saxidomus nuttalli Washington clam 2 3 OG SDI-603 104.6 STP 5 30-40 Prehistoric Shell ecofacts fragments shell, undiff. 7 4.8 DG SDI-603 105 STP 5 40-50 Modern Modem artifacts bottle fragments glass 3 2.8 D DG Discarded as modern trash SDI-603 106 STP 5 40 50 Modern Modem artifacts fragments brick 2 5 D OG Discarded as modern trash SDI-e03 107.1 STP 5 40-50 Modern Modem artifacts rusted fragments metal 8 15.2 D DG Discarded as modern trash SDI-603 107.2 STP 5 40-50 Modern ^Aodem artifacts pliable wire nnetal 1 2.9 D DG Discarded as modern trash SDI-603 108 STP 5 40-50 Modern Modem artifacts fragments ceramic 2 3.7 D OG Discarded as modern trash SDI-603 109.1 STP 5 40-50 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 15 17.3 OG SDI-603 109.2 STP 5 40-50 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 7 24.6 DG/KHG KG changed from C. succunta SDI-603 109.3 STP 5 40-50 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 9 4.2 DG SDI-603 109.4 STP 5 40-50 Prehistoric Shell ecofacts fragments shell, undiff. 9 10.1 DG SDI-603 110 STP 5 50-60 Modern Modem artifacts rusted fragments metal 2 3.9 D DG Discarded as modern trash SOI-603 111 STP 5 50-60 Modern Modem artifacts fragments brick 1 0.9 D DG Discarded as modern trash SDI-603 112 STP 5 50-60 Modern Modem artifacts bottle fragments glass 1 3 D DG Discarded as modern trash SDI-e03 113.1 STP 5 50-60 Prehistoric Shell ecofacts fragments Chione undatella Wavy venus clam 2 13.4 DG SDI-603 113.2 STP 5 50-60 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 3 16.4 DG/KHG KG changed from C. succunta SDI-603 113.3 STP 5 50-60 Prehistoric Shell ecofacts fragments shell, undiff. 2 0.7 DG SDI-603 114 STP 5 60-70 Modern Modem artifacts fragments brick mortar 1 0.1 D DG Discarded as modern trash SDI-603 115 STP 5 60-70 Modern Modem artifacts rusted fragments metal 5 12.7 D DG Discarded as modern trash SDI-603 U6.1 STP 5 60-70 Prehistoric Shell ecofacts fragments Chione sp. Venus ciam 7 6.3 OG SDI-603 116.2 STP 5 60 70 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 3 0.3 DG SDI-603 117 STP 5 70-80 Modern Modem artifacts rusted fragments metal 3 5.5 D DG Discarded as modern trash SDI-603 118.1 STP 5 70-80 Prehistoric Shell ecofacts fragments Clinocardium nuttalli Cockle 1 0.3 OG SDI-603 118.2 STP 5 70-80 Prehistoric Shell ecofacts fragments shell, undiff. 1 0.1 OG SDI-603 119 STP 6 10-20 Modern Modem artifacts fragments plastic 1 0.1 D DG Discarded as modern trash SDI-603 120 STP 6 10-20 Modern Modem artifacts fragments brick 1 1.4 D DG Discarded as modern trash SOI-603 121 STP 6 10-20 Modern Modem artifacts nail, rusted metal 1 1.9 D DG Discarded as modern trash SDI-e03 122 STP 6 10-20 Modern Modem artifacts fragments glass 1 0.3 D DG Discarded as modern trash SDI-603 123.1 STP 6 10-20 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 2 6.8 DG SDI-603 123.2 STP 6 10-20 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 1 0.2 DG SD;-603 123.3 STP 6 10-20 Prehistoric Shell ecofacts fragments Macre/shell, undiff. 2 0.3 DG SDI-603 124.1 STP 6 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 3 6.7 OG SDI-603 124.2 STP 6 20-30 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 2 0.7 DG SDI-603 124.3 STP 6 20-30 Prehistoric Shell ecofacts fragments Haliotis sp. Abalone 1 17.9 DG SDI-6Q3 125 STP 6 30-40 Modern Modem artifacts fragments plastic i 0.1 D DG Discarded as modern trash SDI-603 126 STP 6 30-40 Unknown Rock, undiff. rock, undiff. fragments metavolcanic 1 0.3 OG/KHG SOI-603 127 STP 6 30-40 Modern Modem artifacts fragments brick 2 1.7 D DG Discarded as modern trash SDI-603 128.1 STP 6 30-40 Prehistoric Shell ecofacts fragments Mytilus californianus Califomia mussel 1 0.1 DG/KHG SDI-603 128.2 STP 6 30^0 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 3 0.9 DG SDI-603 128.3 STP 6 30-40 Prehistoric Shell ecofacts fragments shell, undiff. 1 0.1 DG SDI-e03 129 STP 6 40-50 Modern Modem artifacts rusted fragments metal 4 2.3 D DG Discarded as modern trash SDI-603 130 STP 6 40-50 Modern Modem artifacts fragments glass 1 0.3 0 DG Discarded as modern trash SOI-603 131 STP 6 40-50 Prehistoric Chipped stone artifacts flake flake, broken metavolcanic 1 1.1 DG/KHG SDI-603 132.1 STP 6 40-50 Prehistoric Shell ecofacts fragments Mytilus californianus Califomia mussel 1 0.3 DG/KHG SDI-603 132.2 STP 6 40-50 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 4 0.9 DG SDI-603 132,3 STP 6 40-50 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 6 6.1 OG PCR Services Corporation Appendix A - Artifact Catalog for Extended Phase I Excavations for the La COsta Chevroi Ske umt Unk ff Uwt en Okfeetl OI4MtS OoAwlioii Hmi CM. klHW ConiMnli SDI-603 133 STP 6 50-60 Modern Modem artifacts rusted fragments metal 2 3.5 D DG Discarded as modern trash SDI-603 134.1 STP 6 50-60 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 1 0.7 DG SDI-603 134.2 STP 6 50-60 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 1 0.1 OG SDI-603 134.3 STP 6 50-60 Prehistoric Shell ecofacts fragments shell, undiff. 4 0.4 OG SDI-603 135 STP 7 0-10 Modern Modem artifacts fragments brick mortar 1 0.7 D DG Discarded as modern trash SDI-603 136 STP 7 0-10 Prehistoric Chipped stone artifacts flake flake, broken milky quartz 1 0.1 DG/KHG SOI-603 137 STP 7 0-10 Prehistoric Shell ecofacts fragments shell, undiff. 5 1.3 DG SDI-603 138 STP 7 10-20 Modern Modem artifacts fragments plastic 1 0.1 D OG Discarded as modern trash SDI-603 139.1 STP 7 10-20 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 1 0.2 OG SDI-603 139.2 STP 7 10-20 Prehistoric Shell ecofacts fragments shell, undiff. 1 0.2 DG SDI-603 140.1 Hand Auger 14 7 feet dep Prehistoric Shell ecofacts fragments Pecten sp. Scallop 1 0.3 DG SDI-603 140.2 Hand Auger 14 7 feet dep Prehistoric Shell ecofacts fragments Saxidomus nuttalli Washington clam 1 0.2 DG SDI-603 141 STP 7 30-40 Modern Modem artifacts rusted fragments metal 1 3 D DG Discarded as modern trash SDI-603 142 STP 7 30-40 Prehistoric Shell ecofacts fragments sholl, undiff. 2 0.1 DG SDI-603 143 STP 7 40-50 Modern Modem artifacts fragments glass 39 59.1 D DG Discarded as modern trash SDI-603 144.1 STP 7 40-50 Modern Modem artifacts rusted fragments metal 2 0.8 D DG Discarded as modern trash SOI-603 144.2 STP 7 40-50 Modern Modem artifacts foil aluminum 4 0.4 D OG Discarded as modern trash SOI-603 144.3 STP 7 40-50 Modern Modem artifacts Rusted aerosol can aluminum 1 171.2 D DG Discarded as modern trash SDt-603 145 STP 7 40-50 Modern Modem artifacts fragments brick mortar 3 1.8 D DG Discarded as modern trash SOI-603 J46.1 STP 7 40-50 Prehistoric Shell ecofacts fragments Land snail 5 0.2 OG SDI-603 146.2 STP 7 40-50 Prehistoric Shell ecofacts fragments shell, undiff. 1 0.1 OG SDI-603 147 STP 7 50-60 Modern Modem artifacts fragments glass 20 48,3 D DG Discarded as modern trash SDI-603 148 STP 7 50 60 Modern Modem artifacts fragments plastic 14 3.3 D DG Discarded as modern trash SOI-603 149.1 STP 7 50-60 Modern Modem artifacts rusted fragments metal 22 lO.S D DG Discarded as modern trash SDI-603 149.2 STP 7 50-60 Modem Modem artifacts foil aluminum 1 0.1 D DG Discarded as modern trash SDI-603 150.1 STP 7 50-60 Prehistoric Shell ecofacts fragments Land snail 5 0.8 DG SDI-603 150.2 STP 7 50-60 Prehistoric Shell ecofacts fragments shell, undiff. 2 1.5 DG SDI-603 151.1 STP 7 50-60 Unknown Bone right mandible Ragments small fauna 1 0.8 DG/KHG Likely instrusive SDI-603 151.2 STP 7 50-60 Unknown Bone radius fragments small fauna 1 0.1 DG/KHG Ukely instrusive SOI-603 152 STP 7 60-70 Modern Modem artifacts fragments brick 1 141.8 D DG Discarded as modern trash SDI-603 153 STP 7 60-70 Modern Modern artifacts fragments asphalt 1 1.4 D DG Not artifactual SDI-603 154 STP 7 60-70 Modern Modem artifacts fragments ceramic 11 93.3 D DG Discarded as modern trash SDI-603 155.1 STP 7 60-70 Modem Modem artifacts grocery bag •ragments plastic 4 0.1 D OG Discarded as modern trash SDI-603 155.2 STP 7 60-70 Modern Modem artifacts fragments plastic 6 0.5 D OG Discarded as modern trash SOI-603 156 STP 7 60-70 Modern Modern artifacts bottle fragments glass 10 15.3 D DG Discarded as modern trash SDI-e03 157 STP 7 70-80 Modern Modem artifacts fragments glass 21 19.8 D DG Discarded as modern trash SOI-603 158.1 STP 7 70-80 Modern Modem artifacts fragments plastic 6 0.2 D DG Discarded as modern trash SDI-603 158.2 STP 7 70-80 Modern Modem artifacts twine fragments plastic 3 0.1 D DG Discarded as modern trash SDI-603 159 STP 7 70-80 Modern Modem artifacts fragments brick mortar 1 0.9 D DG Discarded as modern trash SDI-603 160 STP 8 0-10 Modern Modem artifacts fragments glass 1 2.1 D DG Discarded as modern trash SOI-603 161 STP 8 0-10 Prehistoric Shell ecofacts Fragments shell, undiff. 2 0.7 OG SDI-e03 162 STP 8 10-20 Modern Modem artifacts fragments glass 1 0.3 D DG Discarded as modern trash SDI-603 163 STP 8 10-20 Modern Modem artifacts fragments brick 1 0.7 D DG Discarded as modern trash SDI-603 164.1 STP 8 10-20 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 2 0.3 DG SDI-603 164.2 STP 8 10-20 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 3 1.1 OG SDI-603 164.3 STP 8 10-20 Prehistoric Shell ecofacts 'ragments shell, undiff. 3 0.7 DG SDI-603 165.1 STP 8 20-30 Prehistoric Shell ecofacts Vagments Pecten sp. Scaltop 5 0.4 DG PCR Services Corporatio cue UM Unit Bn QiiMa^ CflL SOI-603 165.2 STP 8 20-30 Prehistonc Shell ecofacts fragments Mytilus californianus California mussel 4 1 DG SOi-603 165.4 STP 8 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 4 0.8 DG SDI-603 165.5 STP 8 20-30 Prehistoric Shell ecofacts fragments shell, undiff. 5 0.7 OG SDl-e03 166.1 STP 8 30-40 Prehistoric Shell ecofacts fragments Mytilus californianus Califomia mussel 1 0.5 DG SDl-e03 166.2 STP 8 30 40 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 5 2.7 DG SOI-603 166.3 STP 8 30^0 Prehistoric Shell ecofacts fragments shell, undiff. 2 2.9 DG SDI-603 167.1 STP 8 40-50 Prehistoric Shell ecofacts fragments Megastrea undosa Wavy top snail 1 0.2 DG SDI-603 167.2 STP 8 40-50 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 1 0.3 DG SOl-603 167.3 STP 8 40-50 Prehistoric Shell ecofacts fragments shell, undiff. 4 0.7 DG SDl-603 1S8.1 STP 8 50-60 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 1 0.2 DG SDI-603 168.2 STP 8 50-60 Prehistoric Shell ecofacts fragments Chione sp. Venus dam 1 0.2 DG SDI-603 169.1 STP 9 0-10 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 2 0.3 DG SDI-e03 169.2 STP 9 0-10 Prehistoric Shell ecofacts fragments shell, undiff. 1 0.1 DG SDI-603 170 STP 9 10-20 Modern Modem artifacts fragments glass 1 0.2 D DG Discarded as modern trash SDI-603 171.1 STP 9 10-20 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 4 1 DG SDI-603 171.2 STP 9 10-20 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 3 0.6 DG SDI-603 171.3 STP 9 10-20 Prehistoric Shell ecofacts fragments shell, undiff. 2 0.5 DG SDI-603 172 STP 9 20-30 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 3 0.8 OG SOI-603 173.1 STP 9 30-40 Modern Modem artifacts fragments asphalt 2 5.8 0 DG Not artifactual SDI-603 173,2 STP 9 30-40 Modern Modem artifacts asphalt/mortar conglome asphalt 2 0,6 D DG Not artifactual SDI-603 174 STP 9 30-40 Unknown Rock, undiff. rock, undiff. fragments metavolcanic 1 0.3 DG/KHG SDI-603 175.1 STP 9 30-40 Prehistoric Shell ecofacts fragments Pecfen sp. Scallop 3 0.7 DG SDI-603 175.2 STP 9 30-40 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 10 9.7 DG SDI-603 175.3 STP 9 30-40 Prehistoric Shell ecofacts fragments Land snail 1 0.1 DG SDl-e03 175.4 STP 9 30-40 Prehistoric Shell ecofacts fragments shell, undiff. 2 0.8 DG SDt-603 176 STP 9 40-50 Modern Modem artifacts fragments brick 1 1 D DG Discarded as modern trash SDI-603 177 STP 9 40-50 Modern Modern artifacts fragments glass 1 0.8 D DG Discarded as modern trash SOI-603 178.1 STP 9 40-50 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 6 3.6 DG SDI-603 178.2 STP 9 40-50 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 4 l.l DG SDI-«03 178.3 STP 9 40-50 Prehistoric Shell ecofacts fragments Mytilus californianus Catifornia mussel 1 0.2 DG/KHG SDI-603 178.4 STP 9 40-50 Prehistoric Shell ecofacts fragments shell, undiff. 5 0.8 DG SDI-603 179 STP 9 50-60 Modern Modem artifacts bottle fragments glass 1 2.5 D DG Discarded as modern trash SDI-603 180.1 STP 9 50-60 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 2 3.2 DG/KHG <G changed from C. succunta SOI-603 180.2 STP 9 50-60 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 1 0.5 DG SDI-603 180.3 STP 9 50-60 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 6 1.8 DG SDI-603 180.4 STP 9 50-60 Prehistoric Shell ecofacts fragments Mytilus californianus California mussel 1 0.2 DG/KHG SOI-603 180.5 STP 9 50-60 Prehistoric Shell ecofacts Fragments shell, undiff. 6 1.2 DG SDI-e03 181.1 STP 9 60-70 Prehistoric Shell ecofacts Fragments Chione sp. Venus clam 2 2.1 DG SDI-603 181.2 STP 9 60 70 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 3 0.3 DG SDI-603 181.3 STP 9 60-70 Prehistoric Shell ecofacts Fragments shell, undiff. 1 3.4 DG SDI'«03 182.1 STP 10 0-10 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 1 0.1 OG SDI-603 182.2 STP 10 0-10 Prehistoric Shell ecofacts fragments shell, undiff. 2 0.9 DG SDI-603 183 STP 10 10-20 Prehistoric Shelt ecofacts Fragments shell, undiff. 2 0.3 DG SDI-603 184.1 STP 10 20-30 Prehistoric Shell ecofacts 'ragments Chione sp. Venus clam 3 1 DG SDI'603 184.2 STP 10 20-30 Prehistoric Shell ecofacts fragments Pecfen sp. Scallop 6 2.1 DG SDI-603 184.3 STP 10 20-30 Prehistoric Shell ecofacts ragments shell, undiff. 2 0.6 OG SDI-603 185 STP 10 30-40 Moderrv Modem artifacts fragments glass 4 0.8 D DG Discarded as modern trash PCR Services Corporation .m^ UnK Unff t LMWI imrima En ONeetl ftfatorWType GsmmwiHinM em. WLM 4lK InlW ,.<^ '4!MI|t^lt^l^ 1 SDI-603 186 STP 10 30-40 Modern Modem artifacts fragments vmyl 1 05 D DG Discarded as modern trash SOI-603 187.1 STP 10 30-40 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 2 0.5 DG SDI-603 187.2 STP 10 30-40 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 6 4.5 DG SDI-603 187.3 STP 10 30-40 Prehistoric Shell ecofacts fragments Donax Bean clam 2 0.4 DG SOI-603 187.4 STP 10 30-40 Prehistoric Shell ecofacts fragments shall, undiff. 6 1.8 DG SDI-603 188 STP 10 40-50 Modern Modem artifacts fragments glass 2 1.8 D DG Discarded as modern trash SDI-603 189.1 STP 10 40-50 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 2 1.9 DG SOI-603 189.2 STP 10 40-50 Prehistoric Shell ecofacts fragments Mytilus californianus Califomia mussel 1 0.3 DG SOI-603 189.3 STP 10 40-50 Prehistoric Shell ecofacts fragments shell, undiff. 3 0.3 DG SDI-603 190 STP 11 0-10 Modern Modem artifacts fragments brick 1 0.2 0 DG Discarded as modern trash 301-603 191.1 STP 11 D-10 Prehistoric Shell ecofacts fragments Donax Bean clam 1 0.4 DG SDI-603 191.2 STP 11 0-10 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 1 0.1 DG SOI-603 191.3 STP 11 0-10 Prehistoric Shell ecofacts fragments shell, undiff. 4 0.6 DG SDI-603 192 STP 11 10-20 Modern Modem artifacts fragments ceramic 1 4.4 D DG Discarded as modern trash SDI-603 193.1 STP 11 10-20 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 4 0.2 OG SDI-603 193.2 STP 11 10-20 Prehistoric Shell ecofacts fragments Mytilus californianus Califomia mussel 1 0.2 DG/KHG SDI-603 193.3 STP 11 10-20 Prehistoric Shell ecofacts fragments shell, undiff. 1 03 DG SDI-603 194 STP 11 10-20 Unknown Bone axis vert wll Die Rodentia rodent 1 D.l DG SDI-603 195 STP 11 20-30 Modern Modem artifacts fragments asphalt 2 3.6 D DG Not artifactual SDI-603 196 STP 11 20-30 Modern Modern artifacts fragments brick mortar 1 7.4 D DG Discarded as modern trash SDI-603 197.1 STP 11 20-30 Modern Modem artifacts foil metal 2 0.2 D DG Discarded as modern trash SDI-603 197.2 STP 11 20-30 Modern Modem artifacts rusted fragments metal 1 05 D OG Discarded as modern trash SDI-603 198.1 STP 11 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 3 2.2 DG/KHG KG changed from C. succunta SOI-603 198.2 STP 11 20-30 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 3 08 DG SDI-603 199.1 STP 11 30-40 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 6 1.3 DG SDI-603 199.2 STP 11 30-40 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 2 0.4 DG SDI-603 199.3 STP 11 30-40 Prehistoric Shell ecofacts fragments Donax Bean clam 2 03 DG SDI-e03 199.4 STP 11 30-40 Prehistoric Shell ecofacts fragments shell, undiff. 3 08 DG SDI-603 200 STP 11 40-50 Prehistoric Shell ecofacts fragments shell, undiff. 1 02 DG SDI-603 201.1 STP 11 50-60 Prehistoric Shell ecofacts fragments Pecten sp Scallop 1 0.2 DG SDI-603 201.2 STP 11 50-60 Prehistoric Shell ecofacts fragments shell, undiff. 3 0.4 OG SDI-603 202 STP 12 10-20 Modern Modem artifacts rusted fragments metai 1 0.6 D DG Discarded as modern trash SDI-603 203.1 STP 12 10-20 Prehistoric Shell ecofacts fragments Pecten ap. Scallop 5 0.3 DG SDI-603 203.2 STP 12 10-20 Prehistoric Shell ecofacts fragments shell, undiff. 3 0.3 OG SDI-603 204 STP 12 20-30 Modern Modem artifacts fragments plastic 2 08 D DG Discarded as modern trash SOI-603 205,1 STP 12 20-30 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 2 Ol DG SDI-e03 205.2 STP 12 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 2 0.3 DG SDI-603 205.3 STP 12 20-30 Prehistoric Shell ecofacts fragments shell, undiff. 3 OS DG SDl-803 206 STP 12 30^0 Modern Modem artifacts fragments brick mortar 1 9.2 D DG Discarded as modern trash SDI-603 207 STP 12 30-40 Unknown Rock, undiff. rack, undiff. fragments unknown 1 2 DG/KHG SOI-603 208.1 STP 12 30-40 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 3 2.6 DG SDI-603 208.2 STP 12 30-40 Prehistoric Shell ecofacts fragments Donax Bean clam 1 0.3 DG SDI-603 208.3 STP 12 30-40 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 1 02 DG SOI-603 208,4 STP 12 30-40 Prehistoric Shell ecofacts fragments shell, undiff. 1 0.3 DG SDI-603 209.1 STP 12 40-50 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 2 O.A DG SDI-603 209.2 STP 12 40-50 Prehistoric Shell ecofacts fiagments Chione sp. Venus clam 1 0.3 DG/KHG KG changed from C. succunta SDI-603 209.3 STP 12 40-50 Prehistoric Shell ecofacts fragments Chione undatella Wavy venus clam 2 0.7 OG PCR Services Corporation ii^RP^"''"'.^ "^^'^^.'^^ ^"V^"^!^"'*!""*^^^^ ' "-^ Chevron Drainage Improvements at CA-SDi-603 Mooem artifacts Modem artifacts fragments fragments Not artifactual Discarded as modern trash Modem artifacts fragments Discarded as modern trash fragments Chione sp. _ STP " STP Shell ecofacts fragments Pecten sp. fragments _ STP ' STP Shell ecofacts 214_ " 215 fragments " STP Modem artifacts fragments Not artifactual " 217 Modem artifacts grocery bag fragments Discarded as modern trash STP STP Chipped stone artifacts fragments 1 218.1^ " 218.2 fragments Mytilus californianus Califomia mussel STP STP fragments Pecten sp. Scaltop r 221 STP STP Modem artifacts fragments fragments fragments Chione sp. Shell ecofacts fragments Pecten sp. Not artifactual fragments Modem artifacts Discarded as modern trash - STP " STP Modem artifacts fragments Pecten sp. Scallop 223,2^ " 224 STP STP fragments Modem artifacts fragments Not artifactual STP STP Pecten sp. L ^^S,2 " 225,3 fragments Mytilus californianus Califomia mussel STP STP Chione sp. " 226 fragments STP STP Modem artifacts Discarded as modern trash . STP ' STP Modem artifacts rusted fragments Pecten sp. Discarded as modern trash L 231.1_ I 231.2^ STP STP fragments Chipped stone artifacts fragments fragments metavolcanic fragments Pecten sp. STP " STP fragments Chione sp. SDI-603 SOI-603 L "3 _. " ^34.1^ 234.2 234,3^ 235 _ 236.1 STP STP STP STP STP STP Prehistoric Prehistoric Prehistoric Prehistoric Shell ecofacts fragments fragments fragments Modem artifacts Shell ecofacts Mytilus californianus Pecten sp. Chione sp. grocery bag Discarded as modern trash Scallop PCR Services Corporation Appendix A - Artifact Catalog for Extended Phase I Excavations for the La COsta Chevron Drainage Improvements at CA-SDi-603 S«e CM. Unll UnH # Lent tm mMiiCtoH Okfwtl MMerMTvpe Bw ' cjimiMftiii SOI-603 237.1 STP 14 40-50 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 3 1.4 DG SOI-603 237.2 STP 14 40-50 Prehistoric Shell ecofacts fragments shell, undiff. 4 0.5 OG SDI-e03 238.1 STP 14 50-60 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 1 04 DG SDI-603 238.2 STP 14 50-60 Prehistoric SheU ecofacts fragments Haliotis sp. Abalone 1 0.7 DG SDI-603 238.3 STP 14 50-60 Prehistoric Shell ecofacts fragments shelt, undiff. 4 1 DG SDI-603 239.1 STP 15 0-10 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 1 0.1 DG SDI-603 239.2 STP 15 0-10 Prehistoric Shell ecofacts fragments Mytilus californianus California mussel 2 0.3 DG/KHG SOI-603 239.3 STP 15 0-10 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 1 0.2 OG SDI-603 239.4 STP 15 0-10 Prehistoric Shell ecofacts fragments shell, undiff. 4 0.6 DG SDI-603 240 STP 15 10-20 Modern Modem artifacts fragments fiberglass 1 0.1 D DG Discarded as modern trash SDI-603 241.1 STP 15 10-20 Prehistoric Stiell ecofacts fragments Mytilus californianus Califomia mussel 2 0.3 DG/KHG SDI-603 241.2 STP 15 10-20 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 6 1.3 DG SDI-603 241.3 STP 15 10-20 Prehistoric Shell ecofacts fragments shell, undiff. 2 0.3 DG SDI-603 242.1 STP 15 20-30 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 2 02 DG SDI-603 242.2 STP 15 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 2 0.4 DG SDI-603 242,3 STP 15 20-30 Prehistoric Shell ecofacts fragments shell, undiff. 6 0.4 DG SOI-603 243 STP 15 30-40 Modern Modem artifacts fragments asphalt 1 4.6 D DG Not artifactual SOI-603 244 STP 15 30-40 Modem Modem artifacts grocery bag fragments plastic 2 Ol D DG Discarded as modern trash SDI-e03 245.1 STP 15 30-40 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 4 08 DG SDI-603 245.2 STP 15 30-40 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 2 08 DG SDI-603 245.3 STP 15 30-10 Prehistoric Shell ecofacts fragments shelt, undiff. 4 04 DG SDI-603 246 STP 15 40-50 Modem Modem artifacts qracery bag fragments plastic 1 Ol D DG Discarded as modern trash SDI-603 247.1 STP 15 40-50 Prehistoric Shell ecofacts fragments Donax Bean clam 1 0.3 DG SDI-603 247.2 STP IS 40-50 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 1 0.1 OG SDI-603 247.3 STP 15 40-50 Prehistoric Shell ecofacts fragments shell, undiff. 2 03 DG SDI-603 248 STP IS 50-60 Modem Modem artifacts grocery bag fragments plastic 4 03 D DG Discarded as modern trash SDI-e03 249.1 STP 15 50-60 Modern Modem artifacts rusted fragments metal 2 06 D DG Discarded as modern trash SOI-603 249.2 STP 15 50-60 Modern Modem artifacts foil metal 2 Ol D DG Discarded as modern trash SDI-603 250 STP 15 50-60 Modern Modem artifacts fragments glass 1 1.2 0 OG Discarded as modern trash SDI-603 251 STP 15 50-60 Modern Modem artifacts string fragments fibers 1 Ol D DG Discarded as modern trash SDI-603 252.1 STP 15 50-60 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 5 5.6 DG SDI-603 252.2 STP 15 50-60 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 5 1.1 DG SOI-603 252.3 STP 15 50-60 Prehistoric Shell ecofacts fragments shell, undiff. 4 1.1 OG SOI-603 253 STP 16 0-10 Modern Modem artifacts fragments glass 1 02 D OG Discarded as modern trash SDI-603 254 STP 16 0-10 Modern Modem artifacts fragments t>rick mortar 1 1.4 D DG Discarded as modern trash SDI-603 255 STP 16 0-10 Modern Modem artifacts rusted fragments metal 1 02 D DG Discarded as modern trash SOI-603 256.1 STP 16 0-10 Prehistoric Shell ecofacts Fragments Pecten sp. Scallop 4 05 DG SDI-603 256.2 STP 16 0-10 Prehistoric Shell ecofacts fragments shell, undiff. 2 0.3 DG SOt-603 257 STP 16 10-20 Modern Modem artifacts Fragments asphalt 1 2.4 0 DG Not artifactual SDI-603 258 STP 16 10-20 Modern Modem artifacts rusted fragments metal 1 03 D DG Discarded as modern trash SDI-e03 259.1 STP 16 10-20 Prehistoric Shall ecofacts fragments Pecfen sp. Scallop 8 08 DG SDI-603 259.2 STP 16 10-20 Prehistoric Shell ecofacts fragments Chione sp Venus clam 1 06 DG SDI-603 259.3 STP 16 10-20 Prehistoric Shell ecofacts fragments Donax Bean clam 1 Ol DG SDI-603 259.4 STP 16 10-20 Prehistoric Shell ecofacts Fragments shell, undiff. 3 0.9 OG SDI-603 260 STP 16 20-30 Modern Modem artifacts fragments wood/lumber 1 0.7 OG SDI-603 261 STP 16 20-30 Unknown Charcoal fragments charcoal 2 Ol DG SDI-603 262.1 STP 16 20-30 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 2 3.3 DG PCR Services Corporation n. Ullll m • tn MiMalCbH OtIeclZ UmeMiJyf Cnmmon Itanu <M •** INK IM Camnmbi SDI-603 262.2 STP 16 20-30 Prehistonc Shell ecofacts fragments Chione sp. Venus clam 1 OS OG SDI-603 262.3 STP 16 20-30 Prehistonc Shell ecofacts fragments shell, undiff. 1 Ol OG SDI-603 263 STP 16 30-40 Modern Modem artifacts fragments asphalt 2 16.7 D DG Not artifactual SDI-603 264 STP 16 30-40 Modem Modem artifacts grocery bag fragments plastic 1 Ol D DG Discarded as modern trash SDI-603 265 STP 16 30-40 Modern Modern artifacts rusted fragments metal 1 0.1 D DG Discarded as modern trash SDI-603 266.1 STP 16 30-40 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 1 03 DG SOI-603 266.2 STP 16 30-40 Prehistoric Shell ecofacts fragments Chlorostoma sp. Sea snail 2 03 DG/KHG SOI-603 266.3 STP 16 30-40 Prehistoric Shell ecofacts fragments shell, undiff. 4 04 DG/KHG SDI-e03 267 STP 16 40-50 Modern Modem artifacts fragments asphalt 1 4.2 D DG Not artifactual SDl-e03 268 STP 16 40-50 Modem tiAodem artifacts bottle fragments glass 3 2.4 D DG Discarded as modern trash SDI-603 269.1 STP 16 40-50 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 4 4.3 DG SDI-603 269.2 STP 16 40-50 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 2 03 OG SDI-603 269.3 STP 16 40-50 Prehistoric Shell ecofacts fragments shell, undiff. 2 02 OG SOI-603 270 STP 16 50-60 Modern Modem artifacts fragments brick mortar 1 5.5 D OG Discarded as modern trash SDt-603 271.1 STP 16 50-60 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 7 as DG SOI-603 271.2 STP 16 50-60 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 1 04 DG/KHG KG changed from C. succunta SDI-603 271.3 STP 16 50-60 Prehistoric Shell ecofacts fragments Land snail 4 0.3 DG SDI-603 271.4 STP 16 50-60 Prehistoric Shell ecofacts fragments shell, undiff. 3 0.5 DG SDI-e03 272 STP 17 0-10 Modern Modem artifacts grocery bag fragments plastic 1 01 D DG Discarded as modern trash SDI-603 273 STP 17 0.10 Modern Modem artifacts fragments asphalt 1 5.1 D DG Not artifactual SDI-603 274 STP 17 0-10 Modern Modem artifacts fragments brick mortar 1 0.9 D DG Discarded as modern trash SDI-603 275 STP 17 0-10 Modern Modem artifacts fragments glass 1 Ol D DG Discarded as modern trash SDI-603 276.1 STP 17 0-10 Prehistoric Shell ecofacts fragments Clinocardium nuttalli Cockte 1 0.1 DG SDI-603 276.2 STP 17 0-10 Prehistoric Shell ecofacts fragments shell, undiff. 2 0.2 DG SDI-603 277 STP 17 10-20 Modern Modem artifacts fragments brick mortar 2 2,5 D DG Discarded as modern trash SDI-603 278 STP 17 10-20 Modern Modem artifacts fragments ceramic 1 07 D DG Discarded as modern trash SDI-603 279.1 STP 17 10-20 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 2 03 DG SDI-603 279.2 STP 17 10-20 Prehistoric Shell ecofacts fragments shell, undiff. 1 0.1 DG SDI-603 280 STP 17 20-30 Modern Modem artifacts fragments brick mortar 2 1.2 D DG Discarded as modern trash SDI-603 281 STP 17 20-30 Modern Modem artifacts fragments asphalt 2 1.1 D OG Not artifactual SDI-603 282.1 STP 17 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 1 1 DG SOI-603 282,2 STP 17 20-30 Prehistoric Shell ecofacts fragments Pecfen sp. Scallop 1 0.1 DG SDI-603 282.3 STP 17 20-30 Prehistoric Shell ecofacts fragments Nacre/shell, undiff. 1 1 DG SDI-603 233 STP 17 30-40 Modern Modem artifacts fragments asphalt 1 4.1 D OG Not artifactual SDI-e03 284 STP 17 30-40 Modern Modem artifacts fragments brick mortar 1 1.4 D DG Discarded as modern trash SDI-603 285 STP 17 30-40 Modern Modem artifacts fragments glass 2 07 D OG Discarded as modern trash SDI-603 286.1 STP 17 30.40 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 3 12.6 OG SDI-603 286.2 STP 17 30.40 Prehistoric Shell ecofacts fragments Pecfen sp. Scallop 3 05 DG SOI-603 286.3 STP 17 30-40 Prehistoric Shall ecofacts fragments Donax Bean clam 1 0.2 DG SDI-e03 286.4 STP 17 30-40 Prehistoric Shell ecofacts fragments shell, undiff. 2 02 DG SOI-603 287 STP 17 40-50 Modem Modem artifacts grocery bag fragments plastic 1 Ol D DG Discarded as modern trash SDl-e03 288 STP 17 40-50 tModorn tviodem artifacts fragments brick mortar 3 4.6 D DG Discarded as modern trash SDI-603 289 STP 17 40-50 Modern Modem artifacts fragments glass 3 07 D DG Discarded as modern trash SDI-603 290.1 STP 17 40-50 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 3 07 OG 301-603 290.2 STP 17 40-50 Prehistoric Shell ecofacts fragments Land snail 1 04 DG SDt-603 290.3 STP 17 40-50 Prehistoric Shell ecofacts fragments shell, undiff. 2 02 DG SDI-603 291.1 STP 18 0-10 Prehistoric Shell ecofacts fragments Land snail 3 0.1 OG PCR Services Corporation m CA UiUt llnR ff Lwel En OI4Mt1 Ot|N«t2 M»wr„» Gammon BtaM fatilM CenttMMta SDI-603 291.2 STP 18 0-10 Prehistonc Shell ecofacts fragments Chione sp. Venus clam 1.2 DG SDI-603 292 STP 18 10-20 Prehistonc Shell ecofacts fragments Chione sp. Venus clam 17.1 DG S0I-6Q3 293 STP 19 0-10 Modern Modem artifacts rusted fragments metal 0.1 D DG Discarded as modern trash SDI-603 294.1 STP 19 0-10 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 0.2 DG SDI-603 294,2 STP 19 0-10 Prehistoric Shell ecofacts fragments shell, undiff. 1 DG SOI-603 295 STP 19 10-20 Modern Modem artifacts 22 long rifle shell casing metal 1 D DG Discarded as modern trash SDI-603 296 STP 19 10-20 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 2 DG SOI-603 297 STP 19 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 6.7 OG SDI-603 298 STP 20 0-10 Modern Modem artifacts fragments brick mortar 0.7 D DG Discarded as modern trash SOI-603 299 STP 20 0-10 Modern Modem artifacts burned fragment rubber 0.1 D DG Discarded as modern trash SDI-603 300.1 STP 20 0-10 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 0.6 OG SDI-603 300.2 STP 20 0-10 Prehistoric Shell ecofacts fragments shell, undiff. 0.7 DG SDI-603 301.1 STP 20 10-20 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 0.4 DG SDI-603 301.2 STP 20 10-20 Prehistoric Shell ecofacts fragments Chione sp. Venus ciam 9.2 DG SOI-603 301.3 STP 20 10-20 Prehistoric Shell ecofacts fragments Land snail 0.1 DG SOI-603 301.4 STP 20 10-20 Prehistoric Shell ecofacts fragments shell, undiff. 10 1.8 DG SDI-603 302.1 STP 20 20-30 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 3 0.4 DG SDI-603 302.2 STP 20 20-30 Prehistoric Shell ecofacts fragments shelt, undiff. 3 0.7 DG SDI-603 303 STP 21 0-10 Prehistoric Shell ecofacts whole Chione sp. Venus clam 1 6.4 DG SDI-603 304 STP 21 10-20 Prehistoric Shell ecofacts fragments shell, undiff. 1 0.4 DG SOI-603 305 STP 21 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 9 13.1 DG SDI-603 306.1 STP 22 0-10 Prehistoric Shelf ecofacts fragments Chione sp. Venus clam 11 9.5 OG SOI-603 306.2 STP 22 0-10 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 1 0.3 DG SDI-603 306.3 STP 22 0-10 Prehistoric Shell ecofacts fragments Land snail 1 0.1 DG SDI-603 306.4 STP 22 0-10 Prehistoric Shell ecofacts fragments shell, undiff. 3 0.9 DG SDI-e03 307.1 STP 22 10-15 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 2 1 DG SDI-603 307.2 STP 22 10-15 Prehistoric Shell ecofacts fragments Pecten sp. Scallop 1 0.8 DG SDI-603 307.3 STP 22 10-15 Prehistoric Shell ecofacts fragments shell, undiff. 2 0.7 DG SOI-603 308.1 STP 23 0-10 Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 1 0.1 DG SDI-603 308.2 STP 23 0-10 Prehistoric Shell ecofacts fragments shell, undiff. 2 0.3 DG SDI-603 309.1 STP 23 10-20 Prehistoric Shell ecofacts Fragments Pecten sp. Scallop 8 2.7 DG SOI-603 309.2 STP 23 10-20 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 4 6.2 DG SOI-603 310 STP 24 0-10 Prehistoric Shall ecofacts fragments Chione sp. Venus clam 1 0.6 OG SDI-603 311 STP 24 10-20 Prehistoric Shell ecofacts 'ragments Chione sp. Venus clam 2 3 OG SDI-603 312 STP 24 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 1 0.2 DG SOI-603 313 STP 7 20-30 Modern Modern artifacts Aneuser-Busch bottle, circa 1970's Glass 1 253.9 D DG Discarded as modern trash SOI-603 314 STP 7 20-30 Prehistoric Shell ecofacts fragments Chione sp. Venus clam 3 0.3 DG SDI-603 315 STP 2 30^0 Modern Modem artifacts 'ragments ceramic 2 4.9 D OG Discarded as modern trash SDI-603 316 STP 2 30 40 Modern Modem artifacts twisted wire metal 1 0.1 D DG Discarded as modern trash SDI-603 317.1 STP 7 60-70 Modern Modem artifacts rusted fragments metal 1 0.2 D DG Discarded as modern trash SOI-603 317.2 STP 7 60-70 Modern Modem artifacts can tab aluminum 1 0.5 D DG Discarded as modern trash SDI-603 318 STP 7 60-70 Prehistoric Shell ecofacts fragments Clinocardium nuttalli Cockle 1 0.4 DG SDI-603 319.1 STP 7 60-70 Unknown Bone eft mandible fragments Thomomys bottae pocket gopher 1 0.1 DG/KHG ikely intrusive SDI-603 319.2 STP 7 60-70 Unknown Bone 'ragments small fauna 1 0.1 OG/KHG jkely intrusive SDI-603 320 Hand Auger 4 7 feet depl Modern Modem artifacts fragments Brick 3 288.2 D DG Discarded as modern trash 301-803 321 Hand Auger 4 7 feet dep' Modern Modem artifacts fragments asphalt 6 117.9 D DG Not artifactual PCR Services Corporation ^\ UnR • Bn OblKtl n-rtaiTn. B« toWl SDI-603 322 Hand Auger 4 7 feet dep Modern Modem artifacts fragments bnck mortar 10 204 0 DG Discarded as modern trash SDI-603 323 Hand Auger 4 7 feet dep Modern Modem artifacts bottle fragments glass 40 155.7 D DG Discarded as modern trash SOI-603 324 Harvd Auger 4 7 feet dep Modem Modem artifacts grocery bag fragments plastic 5 0.1 0 OG Discarded as modern trash SDI-603 325 Hand Auger 4 7 feet dep Modern Modem artifacts rusted fragments metal 9 11.6 D OG Discarded as modern trash SDI-603 326 Hand Auger 4 7 feet dep Modern Modem artifacts string fragments fibers 2 Ol D DG Discarded as modern trash SDI-603 327 Hand Auger 4 7 feet dep Modern Modem artifacts fragments wood/lumber 3 8.8 OG SDl-803 328 Hand Auqer 4 7 feet dep Unknown Charcoal fragments charcoal 2 0.8 DG SDI-603 329 Hand Auger 4 7 feet dep Prehistoric Chipped stone artifacts shatter fragments quartzite 1 15 DG/KHG SDI-603 330.1 Hand Auger 4 7 feet dep Prehistoric Shell ecofacts fragments Pecten sp. Scaltop 16 3.2 DG SDI-603 330.2 Hand Auger 4 7 feet dep Prehistoric Shell ecofacts fragments Chione sp. Venus clam 13 8.4 OG SDI-603 330.3 Hand Auger 4 7 feet dep Prehistoric Shell ecofacts fragments Saxidomus nuttalli Washington clam 1 09 DG SDI-603 330.4 Hand Auger 4 7 feet dep Prehistoric Shell ecofacts fragments Mytilus californianus Califomia mussel 3 07 DG/KHG SDI-603 330.6 Hand Auger 4 7 feet dep Prehistoric Shell ecofacts fragments shell, undiff. 21 4 DG SDI-603 331 Hand Auger 3 7 feet dep Modern Modem artifacts fragments brick mortar 8 38,1 D DG Discarded as modern trash SDI-603 332 Hand Auger 3 7 feet dep Modern Modem artifacts fragments asphalt 1 3.3 D DG Not artifactual SDI-603 333 Hand Auger 3 7 feet dep Modern Modem artifacts fragments ceramic 1 01 D DG Discarded as modern trash SOI-603 334 Hand Auger 3 7 feet dep Modern Modem artifacts fragments Brick 1 0.5 D DG Discarded as modern trash SOI-603 335 Hand Auger 3 7 feet dep Modern Modem artifacts fragments glass 1 0.2 D DG Discarded as modern trash SDI-603 336.1 Hand Auger 3 7 feet dep Modern Modem artifacts grocery bag fragments plastic 2 0.1 D OG Discarded as modern trash SDI-603 336.2 Hand Auger 3 7 feet dep Modern Modem artifacts fragments plastic 1 0.1 D OG Discarded as modern trash SDI-603 337.1 Hand Auger 3 7 feet dep Prehistoric Shell ecofacts fragments Pecten sp. Scallop 2 02 DG SDl-803 337.2 Hand Auger 3 7 feet dep Prehistoric Shall ecofacts fragments Chione sp. Venus clam 4 0.6 DG SDI-603 337.3 Hand Auger 3 7 feet dep Prehistoric Shell ecofacts fragments Mytilus californianus Califomia mussel 1 0.2 DG SDI-603 338 Hand Auger 5 7 feet dep Prehistoric Shell ecofacts fragments Pecten sp. Scallop 1 0.6 OG SDI-e03 339 Hand Auger 14 7 feet dep Modern Modem artifacts rusted fragments metal 1 1 D DG Discarded as modern trash SDI-603 340 Hand Auger 14 7 feet dep Modern Modem artifacts fragments brick mortar 1 34.S D DG Discarded as modern trash PCR Services Corporation Appendix B - DPR Site Form Update (CA-SDI-603) state of Califomia — The Resources Agency Primary # P-37-000603 (update) DEPARTMENT OF PARKS AND RECREATION HRI# CONTINUATION SHEET Trinomial CA-SDI-603 (update) Page 1 of 6 Resource Name or #: CA-SDI-603 [Update) Recorded by: Fatima Clark, PCR Services Corporation Date: 7/15/14 Continuation MMBM Update CA-SDi-603 was originally recorded in a one page "Archaeological Site Survey Record" prepared by C. N. Warren in 1959. CA- SDi-603 was described as "dark midden with shell overlay of limey hardpan" measuring 450 feet long by 350 feet wide and about three feet deep. The site record also notes a previous investigation by "S.D. Museum of Man and Scripps E" and one burial (human remains) "removed by Sayler, mus. of Man." The entry in the "Artifacts" field is "yes, choppers and manos" and "Two C14 dates, 7,000 and 39,000 Scripps" are noted. A report on the previous investigation noted on the 1959 record form was not identified by the published literature survey. Archaeological excavations were conducted at the site in 1960-1961 in advance of the construction ofthe San Diego Freeway (Interstate 5) (Crabtree et al. 1963), in 1993 in advance of a La Costa Avenue widening project (Apple and Cleland 1994), and in 2003 in advance of an Interstate Highway 5 southbound off-ramp widening project (Laylander and Becker 2004). A field survey was conducted in 2012 for the proposed Chevron's drainage improvements project which would restore an area of gully erosion within the Department of California Transportation (Caltrans) right-of-way (ROW) (Archer 2013). Three areas of shell concentration were identified during the survey. An Extended Phase I (XPI) excavation was conducted by PCR Services Corporation in May 2014 (see Garcia and Clark 2014) to determine the presence or absence of intact archaeological deposits and to determine the nature, scale, and extent of the deposits (horizontal and vertical) at a portion of CA-SDi-603 and specifically located where Chevron's drainage improvements are proposed within Caltrans ROW. The XPI excavations included placing a total of 24 Shovel Test Pits (STPs) in different locations. Fourteen STPs were excavated in and around the footprint of the proposed dissipater and headwall and the proposed storm drain; one STP in the shell concentration adjacent to the storm drain, and nine STPs along the proposed access route zone. The proposed access route zone was also intensively surveyed as part of the XPI study. This survey identified a low-density shell ecofact scatter whose shell constituents were eroding downslope from the top of the bluff. None of the artifacts/ecofacts were collected from survey ofthe proposed access route zone. The XPI study yielded numerous prehistoric shell ecofacts (n=l,345), a small amount of prehistoric chipped stone artifacts (n=9), and many modern items (n=534). All 24 STPs yielded cultural material from the prehistoric and/or modern era. Nineteen ofthe 24 STPs yielded prehistoric material intermixed with modern material while the remaining five STPs (STP 18, 21-24) only yielded prehistoric material. The five STPs that only yielded prehistoric material are located on the slope ofthe access route zone. Small amounts of faunal remains' (n=5; pocket gopher, small fauna, and Rodentia) and charcoal (2.1 g) were also recovered from several of the STPs but are of unknown origin and age. It is likely that most of the faunal remains are derived from modern intrusive burrowing rodents. Ninety-nine percent of the prehistoric and modern material was fragmentary and approximately 95% of that material consists of very small fragments (e.g., 0.5 to 1.5 cm in diameter). No features were encountered in any of the STPs. In particular, 19 (STP 1-17, 19-20) of the 24 STPs yielded prehistoric material intermixed with modern material within individual levels from the uppermost levels (0-10 cmbs level) to the lowest levels (70 to 80 cmbs level). This suggests that both the prehistoric and modern assemblages have been displaced and re-deposited by a natural and/or cultural process and exhibit a very poor integrity as a result. The process that caused the displacement and redeposition of the material was likely the gully erosion caused by storm water runoff. The original location of both the prehistoric and modern deposits was likely on top of the bluff and that are now actively eroding down into Caltrans ROW causing them to intermix. All 24 STPs were placed in active erosional areas and it is currently unknown how deep the intermixed and re-deposited materials extend as many ending levels in the STPs contained both prehistoric and modern items. 'Non-human animal bone DPR 523L (1)95) state of California — The Resources Agency Primary # P-37-000603 (update) DEPARTMENT OF PARKS AND RECREATION HRI# CONTINUATION SHEET Trinomial CA-SDI-603 (update) Page 2 of 6 No intact archaeological deposits or features were encountered during the XPI study and the areas where the proposed drainage improvements are proposed consist of a highly disturbed and intermixed deposit that retains very poor integrity. For a detailed artifact analysis, soil descriptions, and other information, see Garcia and Clark (2014). References: Archer, Gavin 2013 Archaeological Survey Report for the Drainage Improvements Proposed by Chevron Products Company Along Interstate Highway 5 Near Batiquitos Lagoon, City of Encinitas, County of San Diego, Califorma. On file at PCR Services Coporation, Irvine, California. Submitted to the Sate of California, Department of Transportation, City of Encinitas, and City of Carlsbad. Apple, R. M., and James H. Cleland 1994 Historic Property Survey Report for Widening La Costa Avenue Overcrossing. Prepared by KEA Environmental, Inc., San Diego, California. Prepared for Boyle Engineering, San Diego, California. Submitted to City of Carlsbad, California. SCIC Manuscript 1124226. Clark, Fatima and Gavin Archer 2014 Extended Phase I Proposal for Archaeological Excavation at CA-SDi-603, La Costa Chevron Drainage Improvements. On file at PCR Services Corporation, Irvine, California. Crabtree, Robert H., Claude N. Warren, and D. L. True 1963 Archaeological Investigations at Batiquitos Lagoon, San Diego County, California. University of California, Los Angeles, Archaeological Survey Report, Volume 5. Coyote Press facsimile reprint. Garcia, Kyle, and Fatima Clark 2014 Extended Phase I Report for CA-SDi-603/P-37-000603, La Costa Chevron Drainage Improvements, San Diego County, California. On file at PCR Services Corporation, Irvine, California. Laylander, Don and Mark Becker 2004 Archaeological Testing at Twelve Prehistoric Sites (SDI-603, -628, -4553, -6831, -6882, -10,965, -12,120, -12,670, -13, 484, -15,678, -15,679, and-15,680) on the Central San Diego County, California. Prepared by ASM Affiliates, Inc., Encinitas, California. Prepared for California Department of Transportation, San Diego. SCIC Manuscript 1129362. Warren, C. N. 1959 Archaeological Site Survey Record for CA-SDi-603. On file at the South Coastal Information Center. DPR 523L (1/95) Stale of Califomia — The Resaurces Agency OEPARTMENT OF PARKS AND RECREATION CONTINUATION SHEET Primaryfl P-37-0O0SO3{update) HRia Tnnoinlai Cfl-SDI-t0.i [u'od.gr.e) Page 3 of 6 Overview of location of proposed slorm drain aiong eroded guliy, view south. Overview of STPs along the footprint of the proposed dissipater and headwall, view west DPR SiSL Stale of California — The Resources Agency DEPARTMENT OF PARKS AND RECREATION CONTINUATION SHEET Primary# P'37'00r>603 (update) Trinomial (update) Page 4 of e Excavation along access route zone, located on a siope, view northea-fL •PR &23L jijas) Stal& of California - The Reaourcee Agency DEPARTMENTOF PARKS AND RECREATfON LOCATION MAP Primarv 37-OIJ0603 (updaie) HRIfl Tllnorniai CA'SDl-603 (updaie) Page 5 ot 6 'Resource r^ame or « CA-Sdl-aos (update) | 'MapName: USGS E;.oinitas 7 . D'Topcqcaphic Cn^idrangle 'Scafe: 1:24,ODD *Date of map: 1968 (Photo-revised 1975) DPR 52^J (9^2013) ' Required information State of California ^ The Resources Agency Primary « P-37-000603 (updaie) DEPARTMENT OF PARKS AND RECREATION HRI# P-37-000603 (updaie) SKETCH MAP Trinomial CA-SDI-603 (update) Page 6 of 6 'Resource Name or« CA.SOl-603 (update) •Drawn by: Fatima Clark & Kyle Garcia (PCRl "Date of map: July 1014 DPR 523K (9/2013)