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Home My WebLink About; Prehistoric Site CA-SDI-6819; Prehistoric Site CA-SDI-6819; 1992-05-01ARCHAEOLOGICAL TEST REPORT FOR PREHISTORIC SITE CA-SDI-6819 CARLSBAD, CALIFORNIA. Prepared for: Prepared by: Carlsbad Municipal Water District Gallegos & Associates 5950 El Camino Real 2227 Faraday Avenue, Suite C Carlsbad, California 92008 Carlsbad, California 92008 Area Covered: 0.25± acres Site Tested: CA-SDI-6,819 USGS Quadrangle: Encinitas 7.5' Key Words: Late Period, Pottery, Debitage, Shell, Milling Tools, Temporary Camp, Carlsbad, Radiocarbon date . . Dennis^. Gallegos Danielle Huey (/ Project Manager Project Archaeologist May 1992 ABSTRACT TITLE: AUTHORS: SUBJECT: DATE: SOURCE OF COPIES: ABSTRACT: Archaeological Test Report for the Prehistoric Site CA-SDI-6819, Carlsbad, California. Dennis Gallegos and Danielle Huey Gallegos & Associates An archaeological test program to determine site importance for site CA-SDI-6819. May, 1992 South Coastal Information Center San Diego State University San Diego, California 92182 The purpose of this study was to evaluate the importance of the portion of site CA-SDI-6,819 within the proposed D3/D4 reservoir expansion. Testing included the excavation of 33 STPs, one 1 by 1 m test unit, and collection of surface artifacts. As a result of this test program, site CA-SDI-6819 was determined to be not important as per CEQA criteria. Sites identified as not important need not be addressed as to impacts or mitigation of impacts. No further work is recommended. TABLE OF CONTENTS SECTION 1 1.1 1.2 1.3 1.4 NAME INTRODUCTION Project Description Environmental Setting Background Literature Review Results PAGE 1-1 1-1 1-1 1-4 1*1 2 2.1 2.1.1 2.1.2 2.2 2.2.1 2.2.2 2.2.3 2.2.4 2.2.5 2.2.6 2.2.7 2.3 3 3.1 3.2 METHODS AND RESULTS Methods Field Methods Laboratory Methods Test Results Surface Collection Shovel Test Pits Test Unit Artifact Analysis Shell Analysis Radiocarbon Analysis Site Comparison Summary IMPORTANCE AND RECOMMENDATIONS Importance Recommendations 2-1 2-1 2-2 2-2 2-4 2-4 2-4 2-4 2-8 2-8 2-8 2-9 3-1 3-1 REFERENCES 4-1 LIST OF FIGURES NUMBER NAME 1-1 Map Showing Regional Location of Project 1-2 Project Location as Shown on Encinitas 7.5' U.S.G.S. Quadrangle Map PAGE 1-2 1-3 ii TABLE OF CONTENTS (Continued) NUMBER LIST OF FIGURES (Continued) NAME PAGE 111 ,M 2-1 2-2 2-3 Project Location as Shown on Encinitas 7.5' U.S.G.S. Quadrangle Map Showing Location of Cultural Resources Map of CA-SDI-6819 Site Map Showing Surface Artifacts, STPs and Unit CA-SDI-6819, Unit 1 Sidewall Profile 2-3 2-5 2-6 LETTER LIST OF APPENDICES NAME B CA-SDI-6819 Catalogue Sheets Updated Site Record Form Radiocarbon Dating Results A-l B-l C-l iii SECTION 1 INTRODUCTION ** l.l PROJECT DESCRIPTION i|(W * A cultural resource testing program for site CA-SDI-6819 was conducted by Gallegos & m Associates for the City of Carlsbad Municipal Water District's proposed expansion of m D3/D4 reservoir. The site was tested to determine site importance according to the California Environmental Quality Act (CEQA) and City of Carlsbad Guidelines. The testing program for CA-SDI-6819 included the excavation of one 1 by 1 m test unit, 33 shovel test pits (STPs), and collection of surface artifacts. Only that portion (25%) of site m CA-SDI-6819 within the proposed expansion of D3/D4 reservoir site was tested. The remaining 75% of prehistoric site CA-SDI-6819 was not tested. **» The project area is located in the City of Carlsbad 0.75 miles west of El Camino Real, 1.7 „ mile east of Interstate 5, and 0.6 miles south of Palomar Airport Road (Figure 1-1). The m project area is approximately 0.25 acres. This project is located on the Encinitas 7.5' USGS map, Township 12 South, Range 4 West, Section 22 (Figure 1-2). 1.2 ENVIRONMENTAL SETTING "" The project area is situated on a knoll top 380 feet in elevation and includes the fenced •"* location of existing reservoirs Dl and D2. The project area has been disturbed by the ** construction of existing reservoirs Dl and D2 and grading. The eastern portion of the ,„ project area has been disturbed by cultivation including irrigation lines and field terracing. — Surrounding areas are used for dirt roads, agriculture, industrial, and residential purposes. Native vegetation off site is coastal sage scrub. The geologic formation is Linda Vista Formation with sandy loam soil. Intermittent streams can be found 0.5 miles to the north, .«• east and west, and Batiquitos Lagoon is 1.5 miles south. Mm *"" 1.3 BACKGROUND :*» *• San Diego County was occupied prehistorically by at least two major cultural groups. The „ San Dieguito are generally accepted as the first sedentary inhabitants of the region, )H occupying San Diego County as early as 9,000 years ago. Controversy surrounds the subsequent occupation from 9,000 to 1,300 years ago (Early Period). The initial **^l occupation (San Dieguito Complex) is believed to represent a people who entered San 1-1 r Oceansldo v Gallegos & Associates Map Showing Regional Location of Project •72 s. PROJECT LOCATION ENCINITAS, CALIF. "r/ SE/4 OCEANSIDE 15' QUADRANGLE '', N3300—W11715/7.5 1968 PHOTOREVISED 1975 AMS 2550 III SE-SERIES V895 --:•'-- UTM GRID AND 1975 MAGNETIC NORTH DECLINATION AT CENTER OF SHEET SCALE 1:24 000 Gallegos & Associates CONTOUR INTERVAL 20 FEET DOTTED LINES REPRESENT 10-FOOT CONTOURS Project Area as Shown on Encinitas 7.5' USGS Quadrangle FIGURE 1-2 Diego County from the desert. These people collected plants and shellfish, fished and hunted small to large game. The occupation from at least 8,300 years ago to roughly 1,300 years ago is identified as the La Jolla Complex and Pauma Complex. Archaeological sites reflecting this occupation include coastal shell habitation sites, inland hunting and milling camps, and quarry sites. Occupation after 1,300 years ago (Late Period) is well documented by the numerous Kumeyaay/Ipai and Luiseno habitation sites. Artifacts and cultural patterns reflecting this Late Period occupation include small projectile points, pottery, obsidian from Obsidian Butte, and interment by cremation. The project area falls within the boundary area for the Kumeyaay and Luiseno (Kroeber 1925). 1.4 LITERATURE REVIEW RESULTS Site CA-SDI-6819 was first recorded by Thesken (1978) as a light to moderate scatter of shell and artifacts. This site was relocated by Brian F. Mooney Associates (BFMA) during an archaeological survey of Zone 20 Specific Plan Area. CA-SDI-6819 was identified as needing testing to determine archaeological significance (BFMA 1991). Cheever (1989) misidentified site CA-SDI-1016 as CA-SDI-6819 and completed testing and data recovery at CA-SDI-1016 not CA-SDI-6819 (Cheever and Eighmey 1991). BFMA and Gallegos and Strudwick (1992) noted this difference in site identification during an archaeological survey and testing for CA-SDI-1016. Site CA-SDI-6891 has not been previously tested. There are 33 archaeological sites within a one-mile radius of the project area. They include large habitation sites, temporary camps, shell middens, one secondarily deposited shell midden, shell midden and processing stations, shell scatters, shell/lithic scatters, shell artifact scatters, hearth areas, and lithic scatters. Site CA-SDI-1016 located directly east of CA-SDI-6819 has been tested and identified as important and a data recovery program was completed (Cheever 1989; Cheever and Eighmey 1991; Gallegos and Strudwick 1992). The most recent program concluded that site CA-SDI-1016 is a Late Period temporary camp (Cheever and Eighmey 1991). Site CA-SDI-12,509, located approximately 0.75 miles west of CA-SDI-6819, is also a shell midden site with two artifacts reported. This site recorded and tested by Gallegos & Assoicates in 1991 and 1992 was probably a shell processing site whereas CA-SDI-1016 had a variety of activities associated with it (Gallegos and Strudwick 1992). 1-4 SECTION 2 METHODS AND RESULTS 2.1 METHODS Field and laboratory work for CA-SDI-6819 was conducted in March 1992. This work was conducted by Dennis Gallegos, Danielle Huey, Ed Baker, John Boughton, Karen Linehan, and Susan Winzler. Field work included the excavation of 33 STPs, one 1 by 1 m test unit, and collection of surface artifacts. Laboratory work included the washing, cataloguing, and analysis of the artifacts and ecofacts collected. 2.1.1 Field Methods Three lines of STPs were placed within the northwest portion of CA-SDI-6819 in order to determine the extent of the subsurface deposit. All STPs were placed at 10 m intervals. Line A was placed in a north-south orientation with the datum placed at ON/OE. Line B was aligned east-west that crossed the datum at ON/OE. Line C was also aligned north- south and crossed Line B at ON/15W. STPs are approximately 30 cm in diameter and were excavated in 10 cm levels from surface. STPs were dug until a sterile soil change was encountered or to a maximum depth of 80 cm. Information about each STP and its contents (i.e. soil, artifacts, ecofacts) were recorded on an STP form including location, disturbance, soils, and cultural materials. A 1 by 1 m test unit was placed in the most representational area of the site. The unit was oriented true north with the datum (northwest corner) placed at 25S/OE. The northwest corner, unit datum, was the corner with the highest elevation. Unit levels were excavated in 10 cm levels from surface. All excavated soil was screened through 1/8-inch metal mesh screen. Cultural material collected was separated into artifact classes, bagged in plastic bags marked with site number, unit designation, level, date, and contents. A notebook was kept on the unit which includes information on each level such as soil description, amount and type of cultural material, and any disturbance. All cultural material was transported to Gallegos & Associates' laboratory for washing, cataloguing, analysis, and temporary storage. Artifacts are the property of the City of Carlsbad, and final curation will at the City of Carlsbad's direction. 2-1 Surface collection of artifacts was conducted at CA-SDI-6819. Artifact provenience was recorded by tape and compass from site datum (ON/OE). Each artifact was placed in a plastic bag marked with the site number, surface collection number, and date. A site map was established using the 1"=30' engineering map of the project area. The site datum was tied into the map by using tape and compass. The location of STPs, test unit, and surface collected artifacts were plotted on the city provided map. 2.1.2 Laboratory Methods The materials collected from CA-SDI-6819 were transported to Gallegos & Associates where laboratory work was conducted. This included cleaning, cataloguing, and analysis of cultural material collected during the testing program. Artifacts and ecofacts were separated into material class according to provenience. Items were either catalogued individually or by artifact or ecofact class, by count, weight, measurement (if required), and assigned a catalogue number. Additional attributes for certain artifact types were also recorded. Catalogue sheets were recorded on Macintosh Excel spreadsheets (Appendix A). The collection was placed in labeled cardboard boxes for temporary storage at Gallegos & Associates. 2.2 Test Results Site CA-SDI-6819 is located on a knoll top south and east of existing water tanks Dl and D2 in the City of Carlsbad (Figure 2-1). The site does not extend north or west of the two dirt roads shown on Figure 2-1. The highest elevation is the knoll top with a gentle slope to the east The site extends to the south, outside the project area. The portions of CA- SDI-6891 outside of the project area was not tested. The western portion of the site has been disturbed by the construction and maintenance of reservoirs Dl and D2. The eastern portion of the site has been disturbed by cultivation activities including plowing, irrigation lines, and field terracing. Vegetation on the tested portion of CA-SDI-6819 includes disturbed secondary vegetation from agriculture, introduced grasses, and Eucalyptus trees. Soils in the project area are sandy loam and sand. The total artifact/ecofact assemblage includes 58 artifacts, <0.1 grams of bone, 959.7 grams of shell and 15.4 grams of recent historic items (Table 2-1). The majority of artifacts were lithic flakes (31 percent, N=18), however, the majority of cultural material is marine shell. Table 2-1 also indicates that most of the artifact 2-2 6. «72 SDI;6819>^$ ENCINITAS, CALIF. OCEANSIDE 15' QUADRANGLE N330O—W11715/7.5 PHOTOREVISED UTM GRID AND 1975 MAGNETIC NORTH DECLINATION AT CENTER OF SHEET ^ *Ov ""'-' r*/*t * i «— * r* * r\r\r\ ''^f'^\- ' *«v \SCALE 1:24 000 iSs* ®. Gallegos & Associates CONTOUR INTERVAL 20 FEET DOTTED LINES REPRESENT 10-FOOT CONTOURS Site CA-SDI-6819 Showing Portion of Site Tested FIGURE 2-1 BEST ORIGINAL Table 2-1 CA-SDI-6819 Site Summary of Artifacts Depth (cm) Cultural Material Angular waste Flake Retouched flake Scraper fragment Core Core/Tool Hammerstone Mano Mano fragment • Mano/hammerstone Metate fragment/pestle Pottery Bone* Shell* Historic* Total** Percent Surface 6 13 1 1 3 1 0 2 7 1 1 4 0 0 0 40 68.97% STPs 2 1 0 0 0 0 0 0 2 0 0 4 0 138.9 12.0 9 15.52% Unit 1 4 0 0 0 0 1 0 0 0 0 3 <0.1 820.8 3.4 9 15.52% Total 9 18 1 1 3 1 1 2 9 1 1 11 <0.1 959.7 15.4 58 100.00% Percent 15.52% 31.03% 1.72% 1.72% 5.17% 1.72% 1.72% 3.45% 15.52% 1.72% 1.72% 18.97% 100.00% *weight in grams **excluding bone, shell, and historic assemblage was from the surface collection. The majority of subsurface cultural material was found above 40 cm with one STP to 70 cm (Table 2-2). All of the artifacts were collected above 30 cm with only shell found below the 30 cm level. The shell materialjmdramatically decreased after 40 cm (Table 2-2). The presence of shell at greater depths was " probably the result of rodent disturbance. m m 2.2.1 Surface Collection m The surface collection produced 40 artifacts. A list of these artifacts, surface shot numbers, and provenience are shown on Table 2-3 and Figure 2-2. The surface collection indicates that the tested portion of CA-SDI-6819 has a surface area of 107 by 128 m. Table 2-1 ** reveals that the majority of artifacts were from the surface. «» 2.2.2 Shovel Test Pits «i - .. A total of 33 shovel test pits (STPs) were excavated, 24 of which were positive. The ,. excavation of STPs identified a subsurface area of 100 by 130 m (Figure 2-2). Fifteen percent (N=9) of the artifact collection resulted from the excavation of STPs (Table 2-4). Forty-four percent of the artifacts are pottery sherds with the remainder of flakes/angular waste (3) and mano fragments (2) (Table 2-4). The majority of artifacts were from STP 20S/15W. Table 2-5 indicates that all of the artifacts found in the STPs were from the first 30 cm. 2.2.3 Test Unit ,m The location of Unit 1 is shown on Figure 2-2. Unit 1 was excavated to a depth of 40 cm (Table 2-6). A total of nine artifacts were found in Unit 1. All of the artifacts were recovered from the first 20 cm. Disturbance noted during the excavation of the unit included plowing and rodent. Plow furrows and rodent disturbance are evident in the sidewall profiles (Figure 2-3). The 0-20 cm deposit is dark grayish brown sandy loam. JH The 20-40 cm deposit is a reddish-brown sand. «* 111 2.2.4 Artifact Analysis m ' • g| Lithic debitage (flakes and angular waste fragments) is the most frequent artifact class (46 percent) from CA-SDI-6819 (Table 2-1). Flakes are identified as lithic debitage that has a ' bulb of percussion and/or striking platform. Rakes are sized into four groups (>0.3 cm, 2-4 fill ft i mi mi I i II I i if i I ft I 1 I » I fc.i6 i fe I t I i i Table 2-2 CA-SDI-6819 Site Summary of Artifacts Depth (cm) Cultural Material Angular waste Flake Retouched flake Scraper fragment Core Core/Tool Hammerstone Mano Mano fragment Mano/harnmerstone Metate fragment/pestle Pottery Bone* SheU* Historic* Total** Percent Surface 6 13 1 1 3 1 0 2 7 1 1 4 0 0 0 40 68.97% 0-10 1 4 0 0 0 0 0 0 0 0 0 2 0 194.3 8.4 7 12.07% 10-20 2 1 0 0 0 0 1 0 0 0 0 5 <0.1 225.7 2.9 9 15.52% 20-30 0 0 0 0 0 0 0 0 2 0 0 0 0 313.7 0.2 2 3.45% 30-40 0 0 0 0 0 0 0 0 0 0 0 0 0 214.6 3.9 0 0.00% 40-50 0 0 0 0 0 0 0 0 0 0 0 0 0 5.9 0 0 0.00% 50-60 0 0 0 0 0 0 0 0 0 0 0 0 0 3.9 0 0 0.00% 60-70 0 0 0 0 0 0 0 0 0 0 0 0 0 1.6 0 0 0.00% Total 9 18 1 1 3 1 1 2 9 1 1 11 <0.1 959.7 15.4 58 100.00% Percent 15.52% 31.03% 1.72% 1.72% 5.17% 1.72% 1.72% 3.45% 15.52% 1.72% 1.72% 18.97% 100.00% *weight in grams **excluding bone, shell, and historic Table 2-3 CA-SDI-6819 List of Shots Catalogue Number CA-SDI-6819- 2 CA-SDI-6819- 3 CA-SDI-6819- 4 CA-SDI-6819- 5 CA-SDI-6819- 6 CA-SDI-6819- 7 CA-SDI-6819- 8 CA-SDI-6819- 9 CA-SDI-6819- 10 CA-SDI-6819- 11 CA-SDI-6819- CA-SDI-6819- CA-SDI-6819- CA-SDI-6819- 12 CA-SDI-6819- CA-SDI-6819- 13 CA-SDI-6819- 14 CA-SDI-6819- 15 CA-SDI-6819- 16 CA-SDI-6819- 17 CA-SDI-6819- 18 CA-SDI-6819- CA-SDI-6819- 19 CA-SDI-6819- 20 CA-SDI-6819- 21 CA-SDI-6819- 22 CA-SDI-6819- 23 CA-SDI-6819- 24 CA-SDI-6819- 25 CA-SDI-6819- CA-SDI-6819-26 CA-SDI-6819- 27 CA-SDI-6819- CA-SDI-6819-28 CA-SDI-6819- 29 CA-SDI-6819- 30 CA-SDI-6819- 31 CA-SDI-6819- 32 CA-SDI-6819- 33 CA-SDI-6819- 34 CA-SDI-6819- CA-SDI-6819- CA-SDI-6819-35 CA-SDI-6819- 36 CA-SDI-6819- 37 CA-SDI-6819- 38 CA-SDI-6819- 39 CA-SDI-6819- 40 CA-SDI-6819- 41 CA-SDI-6819- 1 Shot Number 1 2 2 3 4 5 6 7 8 8 9 10 11 12 13 14 14 15 16 17 18 19 20 20 21 21 22 23 24 25 26 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Material Ceramk Volcanic Volcanic Volcanic Ceramic -' Volcanic Granitic Volcanic Volcanic - - - Volcanic - Volcanic Ceramic Volcanic Volcanic Metavolcanic Granitic - Volcanic Granitic Volcanic Volcanic Volcanic Granitic Granitic - Volcanic Metavolcanic - Volcanic Metavolcanic Volcanic Volcanic Volcanic Metavolcanic Volcanic - - Volcanic Ceramk Quartzite Volcanic Quartzite Metavolcanic Granitic Granitic Artifact Pottery Angular waste Core Flake Pottery Discard Mano Mano fragment Flake Angular waste Discard Discard Discard Core Discard Angular waste Pottery Retouched flake Mano fragment Angular waste Mano fragment Discard Angular waste Mano fragment Flake Mano fragment Flake Mano fragment Mano fragment Discard Flake Scraper fragment Discarded Core/Tool Flake Flake Flake Mano Flake Flake Discard Discard Flake Pottery Core Angular waste Flake Flake Mano/hammerstone Metate fragment/ pestle • Positive STpso Negative • Unit A Datum •3 Surface Artifact 20m SCALE (meters) Map of CA-SDI-6819 Showing Surface Artifacts, STPs and Unit 1 FIGURE 2-2 e i i i i i i i i I i i ii if i i II II 1 i i i i i T«tfc2-4 CA-SDI-6819 STP> by irovcnwooc OUtnnlMiMial Angular wtrte Hake Mmotmpno* Pottery Shell* Knock* Tool" Irrocot NO/EO 0 0 0 0 OS 0 0 0.00ft NO/E10 0 0 0 0 0 0.3 0 0.00% NO/E40 0 0 0 0 0.7 0 0 0.00ft NO/EJO 0 0 0 0 0.6 0 0 0.00* NG/E60 0 0 0 0 OJ 40.1 0 0.00% NO/E80 0 0 0 0 <0.1 0 0 0.00* NO/E90 0 0 0 0 <0.1 0 0 OjOOft NQ/W1S 0 0 0 0 OJ 401 0 0.00ft NO/W20 0 0 0 0 <0.1 0 0 0.00ft NO/W30 0 0 0 0 3.7 0 0 0.00ft N10/EO 0 0 0 0 0.1 0 0 0.00* STP N20/EO N30/EO 0 0 0 0 <0.1 0 0 0.00% 0 0 0 0 <0.1 0 0 0.00% N50/EO 0 0 0 0 <0.11.8 00.00% N40/W15 0 0 0 0 <0.1 0 0 0.00% S10/EO 0 0 0 01.50 0 0.00% S20/EO 0 011 41 J 1.8 2 2222ft S30/EO 0 0 0 0 242 M 0 0.00ft S40/EO 0 0 0 0 22.9 0 0 0.00* S50/EO 1 0 0 0 33.8 3.9 , ll.llft S10/W15 0 00 0 7.11 0 0X0* S20/W15 1 1 1 1 02 0 4 4444ft S30/W15 0 0 0 2 1 IS 2 2222ft S50/W15 0 0 0 0<ai 0 0 0X10% Tool 21 2 4 13S.9 12JO 9 100.00% PcnrM 2222ft 11.11* 2222ft 4444ft 100X0* **eutadin( tbeU and hMtoric I i i II i I i i II i i I i If If II ill! fc I i I I i i i Table 2-5 CA-SDI-6819 STPs by Depth Depth (cm) Species Angular waste Flake Mano fragment Pottery Shell* Historic* Total** Percent 0-10 0 1 0 1 47.7 6.6 2 22.22% 10-20 2 0 0 3 25.8 1.5 5 55.56% 20-30 0 0 2 0 31.5 0 2 22.22% 30-40 0 0 0 0 22.5 3.9 0 0.00% 40-50 0 0 0 0 5.9 0 0 0.00% 50-60 0 0 0 0 3.9 0 0 0.00% 60-70 0 0 0 0 1.6 0 0 0.00% Total 2 1 2 4 138.9 12.0 9 100.00% Percent 22.22% 11.11% 22.22% 44.44% 100.00% *weight in grams **excluding shell and historic Table 2-6 CA-SDI-6819 Unit Summary Cultural Material Angular waste Flake Hammerstone Pottery Bone* Shell* Historic* Total** Percent 0-10 1 3 0 1 0 146.6 1.8 5 55.56% Depth (cm) 10-20 20-30 0 1 1 2 199.9 1.4 4 44.44% 0 0 0 0 0 282.2 0.2 0 0.00% 30-40 0 0 0 0 0 192.1 <0.1 0 0.00% Total 1 4 1 3 820.8 3.4 9 100.00% Percent 11.11% 44.44% 33.33% 88.89% *weight in grams **excluding bone, shell, and historic i i i i 14 i 1 II II If II II If I i II II * * cms 0 Plow Furrow Plow Furrow West Wall North Wall Dark Greyish-brown Sandy Loam Reddish-brown Sand Rodent Disturbance Roots CA-SDI-6819, Unit 1 Sidewall Profile FIGURE 2-3 >0.6 cm, >1.2 cm, and >2.0 cm). Flake material types include volcanic, metavolcanic, quartzite, and quartz. The majority of flakes were collected from the surface. Most flakes are >2.0 cm and have cortex indicating initial tool manufacturing reduction. Raked tools (7 percent) identified in the artifact assemblage include one retouched flake, one scraper tool fragment, one core/tool, three cores, and one hammerstone. All of the flaked tools were made from cobble lithics. The retouched flake (CA-SDI-6819-15) is a volcanic flake with unifacial retouch along the distal margin. The scraper fragment (CA- SDI-6819-27) is a metavolcanic cobble tool with cortex and unifacial retouch along two edges. The working edge was created by using the ventral surface as a striking platform. Specimen CA-SDI-6819-4 is a core, of volcanic cobble material with cortex and negative flake scars indicating that flakes were removed unidirectionally. Flakes were removed by using the cobble cortex as a striking platform. Specimen CA-SDI-6819-28 is a core/tool also made of volcanic cobble material with cortex, but flakes were removed unidirectionally. This artifact was first split in half, then the distal margin was used. The abrupt ending of the used edge where flakes were removed unidirectionally indicates that CA-SDI-6819 was last used as a core. Specimen CA-SDI-6819-12 is a volcanic cobble core with flakes removed unidirectionally. Specimen CA-SDI-6819-37 is a quartzite bidirectional core. Artifact CA-SDI-6819-124 is a hammerstone of volcanic material. Groundstone tools include 2 manos, 10 mano fragments, 1 mano/hammerstone, and 1 metate fragment/pestle. Both whole manos (CA-SDI-6819-8 and CA-SDI-6819-32) are volcanic cobbles with grinding on two faces. Specimen CA-SDI-6819-8 has pecking on both faces. Specimen CA-SDI-6819-32 is fire-affected and has pecking on both faces and is battered on one end and one side. The material for manos includes three volcanic cobbles and seven granitic cobbles. All but one mano fragment were fire-affected and/or fire cracked. Specimen CA-SDI-6819-41 is a mano/hammerstone made of granitic cobble material. This artifact was ground on two faces with one face pecked, one face highly battered, and both ends battered. Specimen CA-SDI-6819-1 is a metate fragment/pestle made of granitic material. This artifact is a fragment of a slab metate ground on one face. It is fire-affected and fire cracked. Specimen CA-SDI-6819-1 was last used as a pestle. All of the pottery sherds are identified as Tizon Brown Ware. The pottery sherds are tempered with sand containng larger pieces of quartz. Some of the sherds are highly burned. All of the pieces are body sherds of various thicknesses. All sherds were located in the first 20 cm. The presence of pottery at CA-SDI-6819 identifies this site as occupied during the Late Period. 2-7 The one rodent bone fragment was identified as intrusive. The historic items collected from CA-SDI-6819 are of recent origin. These items indicate site disturbance from recent plowing 2.2.5 Shell Analysis Shell was sorted by species and tabled by weight The majority of shell is Chione sp. (95 percent) followed by Ostrea sp. (Table 2-7). As expected, due to the amount of soil excavated, the majority of shell is from Unit 1. According to depth, the majority of shell was collected above 40 cm (Table 2-8). Chione sp. is a shellfish species that lives in an estuary/mud-flat habitat. It has been hypothesized that circa 3,500 years before present (B.P.) stabilization of sea level and resultant siltation of Batiquitos Lagoon greatly reduced lagoonal resources of fish and shellfish (Warren and Pavesic 1963; Miller 1986; Gallegos 1985; Masters 1988). However at Batiquitos, the silted in lagoon provided a mud flat habitat for Chione sp. Batiquitos Lagoon located 1.5 miles south of site CA-SDI-6819 is the closest and most likely source for shellfish. The dominance of Chione sp. shellfish over other species is often associated with Late Period sites. The presence of other shellfish species in the collection such as Ostrea sp., Polinices sp., Prothaca sp., and Semele sp. also inhabit the same calm water habitats as Chione sp. 2.2.6 Radiocarbon Analysis A shell sample of Chione sp. was sent to Beta Analytic, Inc for analysis. The sample was taken from the 30-40 cm level of Unit 1. The radiocarbon sample produced a date of 1110*50 years before present (Beta-52923) (Appendix C). 2.2.7 Site Comparison A comparison of site CA-SDI-6819 with site CA-SDI-1016 reveals that these sites are similar. According to the work conducted at CA-SDI-1016, this site is a camp where plant processing, shellfish gathering/processing, and hunting occurred (Cheever and Eighmey 1991). The presence of pottery and the dominance of Chione sp. in the collection as well as at CA-SDI-6819 indicates Late Period occupation. Both sites are also associated with 2-8 ii li t I ti I i ti 11 t li II II ii if t I ft i i i §i ii Table 2-7 CA-SDI-6819 Shell by Provenience Specie. Argopecten QlicDB CMraa Pelmet. Pnftxtec. Semele QibihdlVaUatiS&i' Tool (in mm) IVm--M.ii*rciw UnitI 5.7 745.7 10.6 0 0 8.8 03 49.7 820.8 85.53% NO/EO 0 0.6 0 0 0 0 0 0.2 OX 0X8% NO/B40 0 0.7 0 0 0 0 0 0 a? 0.07% NO/E50 0 •00.1 0 0 0 0 0 0.6 0.6 0.06* NO/E60 0ai 0 0 0 0 0 0/4 OJ 0.05* NO/E80 <0.1 0 0 0 0 0 0 0 <0.1 0.00% NO/E90 0 0 0 0 0 0 0 <0.1 <D.l OJ»* NO/W1S OS 0 0 0 0 0 0 0 0.5 0X0% NO/W20 <0.1 0 0 0 0 0 0 0 <O.I OJOO% NO/W30 0.2 3 0 0 0 0 0 OJ 3.7 039% N10/EO <0.1 0.1 0 0 0 0 0 0 0.1 0.01% STP N20/EO N30/EO 0 0 0 0 0 0 0 <0.1 <0.1 0.00% 0 0 0 0 0 0 0 •30.1 <0.1 0.00% N50/EO 0 0 0 0 0 0 0 <0.1 <0.1 0.00* N40/W15 0 0 0 0 0 0 0 <0.1 <0.1 0.00% S10/EO 0 1.5 0 0 0 0 0 0 1.5 0.16% S20/EO 1.8 34J 0.1 0 0.6 0 0 4J 41 J 4JO% S30/EO O419 a 32 0 O5 0 0 O3 247 152% S40/EO 0 15 0.2 6.6 0/4 0 0 0.7 22.9 2J9% S50/EO OA 32.1 0 0 0 0 0 1J 33^ 3-52% S10/W15 O2 6.9 0 0 0 0 0<ai 7.1 0.74% S20/W15 OJ 0 0 0 0 0 0 0 0.2 0.02% S30/W13 0.1 tt9 0 0 0 0 0 0 1 0.10% S50/W15 0 0<ai 0 0 0 0 0 <0.lox»* Tottl 9J 860.9 14.1 6j6 U 8J OJ 58.0 959.7 100JOO* »~ 1D5% 95^«% 1J6* 0.73% 0.17% 0.98% 0.03* 100100% *NM tndnded mperca* II I J t I ft i II If If II II 11 • 1 I I ft I fc I ft I II I i Table 2-8 CA-SDI-6819 Shell by Depth Depth (cm) Species Argopecten Chione Ostrea Polinices Protothaca Semele Crab shell Unidentifiable* Total (in grams) Percent 0-10 3.1 169.9 4 0 0.2 0 0.3 16.8 194.3 20.25% 10-20 2.6 201.8 4.6 0 0.2 0 0 16.5 225.7 23.52% 20-30 3.6 287.4 2 0 0.6 0 0 20.1 313.7 32.69% 30-40 0.2 190.8 3.5 6.6 0.4 8.8 0 4.3 214.6 22.36% 40-50 0 5.5 0 0 0.1 0 0 0.3 5.9 0.61% 50-60 0 3.9 0 0 0 0 0 <0.1 3.9 0.41% 60-70 0 1.6 0 0 0 0 0 0 1.6 0.17% Total 9.5 860.9 14.1 6.6 1.5 8.8 0.3 58.0 959.7 100.00% Percent 1.05% 95.48% 1.56% 0.73% 0.17% 0.98% 0.03% 100.00% *Not included in percent plant processing. However, the main difference in these sites is the presence of animal bone and projectile points at CA-SDI-1016 indicating hunting activities. Evidence of hunting was not found on the tested portion at CA-SDI-6819. This suggests that CA-SDI- 6819 was a temporary camp occupied around 1,110 years ago, where the primary site activities involved shellfish processing, seed processing, and limited tool production. 2.3 SUMMARY The limited subsurface deposit and relatively homogeneous artifact assemblage suggest that this portion of CA-SDI-6819 was not occupied for an extended period of time. The abundance of shell, the presence of groundstone tools, and the small amount of other types of artifacts and ecofacts indicates that shell processing dominated site activities followed by milling of plant seeds and limited tool production. The presence of pottery and the radiocarbon date identify this site as occupied around 1,110 years ago. Since all of the tools in this collection were from cobble materials, the lithic assemblage and tool technology at CA-SDI-6819 represents use of locally available materials during the Late Period. It should be noted that the La Jolla Complex (Early Period) is usually identified with this cobble lithic technology. In summary, the portion of site CA-SDI-6819 tested is identified as a Late Period temporary camp site where shell processing and limited seed processing activities occurred. 2-9 SECTION 3 IMPORTANCE AND RECOMMENDATIONS 3.1 IMPORTANCE According to the California Environmental Quality Act (CEQA) requirements, Appendix K Section III, cultural resources are evaluated as important or not important Important cultural resources need to be addressed as to impacts and mitigation of impacts. The criteria for site importance under CEQA, Appendix K, Section in are listed below: A. Is associated with an event or person of: 1. Recognized significance in California or American history, or 2. Recognized scientific importance in prehistory. B. Can provide information which is both of demonstrable public interest and useful in addressing scientifically consequential and reasonable or archaeological research question, C. Has a special or particular quality such as oldest, best example, largest, or last surviving example of its kind, D. Is at least 100 years old and possesses substantial stratigraphic integrity, or E. Involves important research questions that historical research has shown can be answered only with archaeological methods. The portion of site CA-SDI-6819 was tested by Gallegos & Associates. Testing included the excavation of 33 STPs, one 1 by 1 m unit, and surface collection of artifacts. Based on the limited types and amounts of artifacts and ecofacts, this site is identified as not important It does not meet the criteria outlined in CEQA. 3.2 RECOMMENDATIONS The portion of site CA-SDI-6819 tested is identified as not important Sites identified as not important need not be addressed as to impacts or mitigation of impacts. No further work is recommended for that portion of site CA-SDI-6,819 tested. 3-1 SECTION 4 REFERENCES CITED Brian F. Mooney Associates 1991 Draft Program Environmental Impact Program for the Zone 20 Specific Plan Project, Carlsbad, California. Ms on file at the City of Carlsbad Cheever, Dayle M. 1989 Cultural Resources Significance Testing at SDi-6753, SDi-6754, SDi-6819, and SDi-2046: Four Prehistoric Sites Within the Aviara Development, Carlsbad, California. Ms. on file at the South Coastal Information Center, San Diego State University, San Diego, California. Cheever, Dayle M. and James D. Eighmey 1991 Data Recovery at SDi-6753 and SDi-6819: Aviara Development Project, Carlsbad, California. Ms. on file at the City of Carlsbad. Gallegos, Dennis R. 1985 Batiquitos Lagoon Revisited. In Casual Papers, ed. C. White, 2(1): 1-13 Cultural Resource Management Center, San Diego State University, San Diego, California. Gallegos, Dennis and Ivan Strudwick 1992 Historical/Archaeological Survey and Test Report for Alta Mira Park, Carlsbad, California. Ms on file at the South Coastal Information Center, San Diego State University, San Diego, California. Kroeber, A. L. 1925 Handbook of the Indians of California. Smithsonian Institution, Bureau of American Ethnology, Bulletin 78. Masters, Patricia 1988 Paleo-Environmental Reconstruction of San Diego Bay, 10,000 Years B.P. to Present. In Five Thousand Years of Maritime Subsistence at Ballast Point Prehistoric Site SDi-48 (W-164) San Diego, California, D. Gallegos, ed., 4.1- 4.22. Ms. on file at the South Coastal Information Center, San Diego State University, San Diego, California. Miller, Jacqueline 1966 The Present and Past Molluscan Faunas and Environments of Four Southern California Coastal Lagoons. M.A. Thesis, University of Califronia, San Diego. Thesken, Jay 1978 Archaeological Site Form for CA-SDI-6891. Ms. on file at the South Coastal Information Center, San Diego State University, San Diego, California. 4-1 Warren, Claude N. and M. G. Pavesic 1963 Shell Midden Analysis Site SDi-603 and Ecological Implications for Cultural Development of Batiquitos Lagoon, San Diego County. University of California, Los Angeles, Archaeological Survey Annual Report, 1962- 1963:407-438. t* 4-2 APPENDIX A CA-SDI-6819 CATALOGUE SHEETS l i ft l ft l I i i i ii ii l i li ii ii i i SDi-6819 Master Cat. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 A Site No. CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- B Cat No. 1 2 3 4 5 6 7 8 9 10 11 - - - 12 - 13 14 15 16 17 18 - 19 20 21 22 23 24 25 - C Shot No. 44 1 2 2 3 4 5 6 7 8 8 9 10 11 12 13 14 14 15 16 17 18 19 20 20 21 21 22 23 24 25 D Provenience 9.6m/170° - - - - - - - - - - - • - - - - - - - - - - - - - - - - - - - E STP - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - F Unit - - - -• - - - - - - - - - - - - - - - - - - - - - - - - - - - G Depth Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface H Material Gran Ceramic Vol Vol Vol Ceramic - Vol Gran Vol Vol - - - Vol - Vol Ceramic Vol Vol MV Gran - Vol Gran Vol Vol Vol Gran Gran - 1 Artifact Metate frag/pestle Pot sherd Ang. waste Core Flake Pot sherd Discarded Mano Mano frag Flake Ang. waste Discarded Discarded Discarded Core Discarded Ang. waste Pot sherd Re flake Mano frag Ang. waste Mano frag Discarded Ang. waste Mano frag Flake Mano frag Flake Mano frag Mano frag Discarded J Count 1 1 1 1 1 1 - 1 1 1 1 - - - 1 - 1 1 1 1 1 1 - 1 1 1 1 1 1 1 - K Weight 2595.7 2 16.8 836.6 1.6 1.8 - 616 318.9 21.9 76 - - - 314.8 - 0.3 1.4 63 215 6.6 322.8 - 14.6 238.9 3.1 320.1 6.9 321.6 307 - L Comments Burned Burned Burned Pagel ii ft J ft J ft i I 1 I 1 i I t J i 1 I i 1 i I i i SDi-6819 Master Cat. 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 A CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- B 26 27 - 28 29 30 31 32 33 34 - - 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 C 26 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 - - - - - - « - - - - - - D - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - E - - - - - - - - - - - - - - - - - - - S10/EO S30/EO S30/EO S30/EO S30/EO S30/EO S30/EO S20/EO S20/EO S20/EO S20/EO S20/EO S20/EO F - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Q Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface 0-10 cm 0-10 cm 0-10 cm 10-20 cm 20-30 cm 30-40 cm 40-50 cm 0-10 cm 0-10 cm 10-20 cm 10-20 cm 20-30 cm 20-30 cm H Vol MV - Vol MV Vol Vol Vol MV Vol - - Vol Ceramic Qtzite Vol Qtzite MS Gran Fauna Historic Fauna Fauna Fauna Fauna Fauna Historic Fauna Ceramic Fauna Gran Fauna 1 Flake Scraper frag Discraded Core/Tool Flake Flake Flake Mano Flake Flake Discarded Discarded Flake Pot sherd Core Ang. waste Flake Flake Mano/hammerstone Shell Metal Shell Shell Shell Shell Shell Grout? Shell Pot sherd Shell Mano frag Shell J 1 1 - 1 1 1 1 1 1 1 - - 1 1 1 1 1 1 1 - 1 - - - - - 1 - L^1 - 1 - K 2.7 100.6 - 257.7 49.9 42.5 4.6 535.4 108.8 7.9 - - 72.8 3.1 298.9 1.5 7.2 28 378.9 1.5 1.4 18.1 3.4 0.1 2.5 0.1 1.8 14.1 1.1 7.3 115.2 10.1 L Burned i i i i 1 1 I i 1 i f i i i i i i I i fi I i 1 i i i i SDi-6819 Master Cat. 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 A CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- B 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 C - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - D - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - E S20/EO S20/EO S20/EO S20/EO S40/EO S40/EO S40/EO S40/EO S40/EO S40/EO S50/EO S50/EO S50/EO S50/EO S50/EO S50/EO S50/EO S50/EO S10/W15 S10/W15 ^SIO/WIS J510/W15 S10/W15 S20/W15 S20/W15 S20/W15 S20/W15 S20/W15 S30/W15 S30/W15 S30/W15 S30/W15 F - - - - - - - - - - - - - - - - - - - - - - - - - -. - - - - - - G 30-40 cm 40-50 cm 50-60 cm 60-70 cm 0-10 cm 10-20 cm 20-30 cm 30-40 cm 40-50 cm 50-60 cm 0-10 cm 10-20 cm 10-20 cm 20-30 cm 30-40 cm 30-40 cm 40-50 cm 50-60 cm 0-10 cm 0-10 cm 0-10 cm 10-20 cm 20-30 cm 0-10 cm 0-10 cm 0-10 cm 10-20 cm 20-30 cm 0-10 cm 0-10 cm 10-20 cm 10-20 cm H Fauna Fauna Fauna Fauna Fauna Fauna Fauna Fauna Fauna Fauna Fauna Qtz Fauna Fauna Historic Fauna Fauna Fauna Historic Historic Fauna Fauna Fauna Vol Ceramic Fauna Vol Gran Historic Fauna Ceramic Historic 1 Shell Shell Shell Shell Shell Shell Shell Shell Shell Shell Shell Ang. waste Shell Shell Nail Shell Shell Shell Clear glass Plastic Shell Shell Shell Flake Pot sherd Shell Ang. waste Mano frag Clear glass Shell Potsherd Clear glass J - - - - - - - - - - 1 - - 1 - - - 1 1 - - - 1 1 - 1 1 1 - 2 1 K 3.6 3.2 1.4 1.6 1 9.2 1.8 10.3 0.4 0.2 0.3 11.4 4.3 22 3.9 5.4 2.2 2.3 0.9 0.1 6 1.1 <0.1 1.7 0.7 0.2 1.5 23.2 0.3 0.7 4.6 1.5 L Burned Both burned Page 3 II li II If ft. J fc I ii fi li I ill II II t i SDi-6819 Master Cat. 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 A CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- B 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 C - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - D - - - - - - - ' - - - - - - - - - - - - - - - - - - - - - - - - E S30/W15 S50/W15 NO/EO NO/E10 NO/E40 NO/E50 NO/E60 NO/E60 NO/E60 NO/E80 NO/E90 NO/W15 NO/W15 NO/W15 NO/W15 NO/W20 NO/W30 NO/W30 NO/W30 NO/W30 N10/EO N20/EO N30/EO N50/EO N50/EO N40/W15 - - - - - - F - - - - - - - - - - - - - - - - - - - - - - - - - - 1 1 1 1 1 1 G 10-20 cm 0-10 cm 0-10 cm 0-10 cm 30-40 cm 0-10 cm 0-10 cm 0-10 cm 10-20 cm 0-10 cm 10-20 cm 0-10 cm 0-10 cm 10-20 cm 20-30 cm 0-10 cm 0-10 cm 10-20 cm 20-30 cm 30-40 cm 0-10 cm 10-20 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm H Fauna Fauna Fauna Historic Fauna Fauna Historic Fauna Fauna Fauna Fauna Historic Fauna Fauna Fauna Fauna Fauna Fauna Fauna Fauna Fauna Fauna Fauna Historic Fauna Fauna L Soil Vol MV Ceramic Historic Historic 1 Shell Shell Shell Brown glass Shell Shell Plastic Shell Shell Shell Shell White plastic Shell Shell Shell Shell Shell Shell Shell Shell Shell Shell Shell Nail Shell Shell sample Ang. waste Flake Pot sherd Foil Metal J - - - 1 - - 1 - - - - 1 - - - - - - - • - - 1 - - - 1 3 1 1 1 K 0.3 <0.1 0.8 0.3 0.7 0.6 <0.1 0.4 0.1 <0.1 <0.1 <0.1 0.4 <0.1 0.1 <0.1 3.5 0.1 0.1 <0.1 0.1 <0.1 <0.1 1.8 <0.1 <0.1 46.2 18 7.4 2.8 <0.1 0.3 L Burned Page 4 ii it ll II t i i i I i j 1 i I i i l I 1 i 1 I J SDi-6819 Master Cat. i i 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 A CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- B 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 C - - - - - - - - - - - - - - - - - • - - - - - D - - - - - - - - - - - - - - - - - - - - - - E - - - - - - - - - - - - - - - - - - - - - - F 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 G 0-10 cm 0-10 cm 10-20 cm 10-20 cm 10-20 cm 10-20 cm 10-20 cm 10-20 cm 10-20 cm 10-20 cm 10-20 cm 10-20 cm 10-20 cm 10-20 cm 20-30 cm 20-30 cm 20-30 cm 20-30 cm 30-40 cm 30-40 cm 30-40 cm 30-40 cm H Historic Fauna Soil Qtz Ceramic Vol Fauna Historic Historic Historic Historic Historic Historic Fauna Soil Historic Historic Fauna Soil Historic Historic Fauna 1 Unknown Shell sample Flake Pot sherd Hammerstone Bone Brown glass Melted purple glass Grout/plaster Foil Metal Unknown Shell sample Clear glass Foil Shell sample Packing tape Plastic Shell J 3 - - 1 2 1 - 1 1 5 5 1 1 - - 1 3 - - 1 1 - K 1.5 146.6 78.9 0.3 1.8 237.2 <0.1 0.4 0.1 0.5 0.1 0.1 0.2 199.9 128.4 0.2 <0.1 282.2 184.7 <0.1 <0.1 192.1 L Burned Modern rodent II II II II il 11 li II II 11 II ft J If li il fti ii iiii SDi-6819 Flake Cat. Site No. CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CaLNo. 5 10 21 23 ^629 30 31 33 34 35 39 40 78 115 122 Shot No. 3 8 21 22 26 29 30 31 33 34 37 41 42 - - - Provenience - - - - - - - - - - - - - - - - STP - - - - - - - - - - - - - S20/W15 - - Unit - - - - - - - - - - 1 - - - - 1 1 Depth Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface 0-10 cm 0-10 cm 10-20 cm Material Vol Vol Vol Vol Vol MV Vol Vol MV Vol Vol Qtzite MV Vol MV Qtz Sizel - - - - - - - - - - - - - - - - Cor - - - - - - - - - - - - - - - - Pat - - - - - -. - - - - - - - - - - Size 2 1 - 1 - 1 - - - - - - - - - 2 1 Cor 0 - 1 - 1 - - - - - - - - - 0 0 Pat 1 - 1 - 1 - - - - - - - - - 2 0 Size 3 - - - - - - - - - - - - - 1 1 - Cor - - - - - - - - - - - - - 0 0 - Pat - - - - - - - - - - - - - 1 1 •- Size 4 - 1 - 1 - 1 1 1 1 1 1 1 1 - - - Cor - 1 - 0 - 1 1 1 1 0 1 1 1 - - - Pat - 1 - 1 - - - - Pagal II 11 11 I I I i• i 1 i i i i ii i i SDi-6819 Raked Tool Cat I ""I II ii ii ii 11 ii I i Site No. CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CatNo. 4 12 15 27 28 37 124 Shot No. 2 12 15 26 28 39 - Provenience - - - - - - - STP - - - - - - - Unit - - - - - - 1 Depth Surface Surface Surface Surface Surface Surface 10-20 or Material Vol Vol Vol MV Vol Qtzite Vol Artifact Com Core Re flake Scraper frag Core/Tool Core Hammerstone Cor X X X X X Pat X X X X X X Length 118.4 64.3 61.5 57.1 103.4 75.5 73.1 Width 81.9 63.9 51.7 47.5 69.5 63.1 44.3 Thickness 56 57.2 19.8 32.9 25.8 46.5 44.3 Weight 836.6 314.8 63 100.6 257.7 298.9 237.2 Comments Cobble, unidirectional Cobble, bidirectional Cobble Cobble, multidirectional Bidirectional P«g«1 il kJ KJ mi ii ii ii ii iiii ii iiti i i I i i i ii if 11 SDI-6819 Groundtton* Cat Site No. CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CatNo. 1 7 8 9 16 18 20 22 24 25 32 41 53 82 Shot No. 44 3 6 7 16 18 20 21 23 24 32 43 - - Provenience 9.6m/1700 - - - - - - - - - - - - - STP - - - - - - - - - - - - S30/EO S20/W15 Unit - - - - - • - - - - - - • • - Depth Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface 20-30 cm 20-30 cm Material Gran - Vol Gran Vol Gran Gran Vol Gran Gran Vol Gran Gran Gran Artifact Metate frag/pettle Discaded Mano Manofrag Mano frag Manofrag Manofrag Manofrag Manofrag Manofrag Mano Mano/hatnmerstone Manofrag Mano frag Length cm 167.2 - 103.6 75 67.7 113.8 89.6 87.8 95.6 70.2 100.2 84.8 80.6 393 Width cm 157 - 81.1 73.4 57 72.1 49.5 52.7 71.2 69.9 75.7 73.7 28.6 39.4 Thicknesi cm 83.1 - 51A 47.7 44.2 38.7 50.6 56.1 51.7 41.6 48.7 41.9 49.4 16.6 Weight gm 2595.7 - 616 318.9 215 322.8 238.9 320.1 321.6 307 535.4 378.9 115.2 23.2 Faces 1 - 2 2 1 1 2 2 1 2 2 2 2 2 Shaped/ Cobble Slab - Cobble Cobble Cobble Cobble Cobble Cobble Cobble Cobble Cobble Cobble Cobble Cobble Pecked Face/side - - Face - Face - - - X Face Face Face - Face Battered Bod side - - - - ' - - - • - - Ends End/side Facefcnd - Side FAR X - - X X X X X - X X - X X FCR X - - X Xc X X - X - - X X Comments Complete Side or end frag Midsection, one face Side frag Side frag End or side frag Midsection, one face End frag Complete Complete. 1 face extremely battered End or side frag Side frag Pag«1 SDi-6819 Shell Cat. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 A Site No. CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819J CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- B Cat. No. 42 44 44 44 44 44 45 45 45 46 46 47 48 48 50 50 50 52 52 52 54 54 54 54 55 55 56 56 57 58 59 60 60 60 61 61 61 61 61 61 63 63 C Shot No. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - D Provenience - - - - - - - - - - - ' - -' - - - - - - - - - - - - • - - - - - - - - - - - - - - - - - E STP S10/EO S30/EO S30/EO S30/EO S30/EO S30/EO S30/EO S30/EO S30/EO S30/EO S30/EO S30/EO S30/EO S30/EO S20/EO S20/EO S20/EO S20/EO S20/EO S20/EO S20/EO S20/EO S20/EO S20/EO S20/EO S20/EO S20/EO S20/EO S20/EO S20/EO S40/EO S40/EO S40/EO S40/EO S40/EO S40/EO S40/EO S40/EO S40/EO S40/EO S40/EO S40/EO F Unit - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - G Depth 0-10 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm 10-20 cm 10-20 cm 10-20 cm 20-30 cm 20-30 cm 30-40 cm 40-50 cm 40-50 cm 0-10 cm 0-10 cm 0-10 cm 10-20 cm 10-20 cm 10-20 cm 20-30 cm 20-30 cm 20-30 cm 20-30 cm 30-40 cm 30-40 cm 40-50 cm 40-50 cm 50-60 cm 60-70 cm 0-10 cm 10-20 cm 10-20 cm 10-20 cm 20-30 cm 20-30 cm 30-40 cm 30-40 cm 30-40 cm 30-40 cm 40-50 cm 40-50 cm H Species Chione Argopecten Chione Ostrca Protothaca Unidentifiable Chione Protothaca Unidentifiable Chione Unidentifiable Ostrea Protothaca Unidentifiable Chione Ostrea Unidentifiable Argopecten Chione Unidentifiable Argopecten Chione Protothaca Unidentifiable Argopecten Chione Chione Unidentifiable Chione Chione Chione Chione Ostrea Unidentifiable Chione Unidentifiable Chione Polinices Protothaca Unidentifiable Chione Unidentifiable 1 Burned - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - •- - - - - - - - - - - - J Weight 1.5 0.4 16.7 0.7 0.2 0.1 3.1 0.2 0.1 <0.1 0.1 2.5 0.1 <0.1 11.4 0.1 2.6 0.9 5.2 1.2 0.8 8.2 0.6 0.5 0.1 3.5 3.2 <0.1 1.4 1.6 1 9 0.2 <0.1 1.8 <0.1 2.8 6.6 0.4 0.5 0.2 0.2 Pagel SDi-6819 Shell Cat. 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 A CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- B 64 65 65 67 67 67 68 68 68 70 70 70 71 71 72 72 75 75 75 76 76 77 80 84 84 87 87 88 89 89 91 92 92 94 94 95 96 97 99 100 101 102 103 C - - - - - - - - - - - - - • - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - D - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - E S4Q/EO S50/EO S50/EO S50/EO S50/EO S50/EO S50/EO S50/EO S50/EO S50/EO S50/EO S50/EO S50/EO S50/EO S50/EO S50/EO S10/W15 S10/W15 S10/W15 S10/W15 S10/W15 S10/W15 S20/W15 S30/W15 S30/W15 S30/W15 S30/W15 S50/W15 NO/EO NO/EO NO/E40 NO/E50 NO/E50 NO/E60 NO/E60 NO/E60 NO/E80 NO/E90 NO/W15 NO/W15 NO/W15 NO/W20 NO/W30 F - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - G 50-60 cm 0-10 cm 0-10 cm 10-20 cm 10-20 cm 10-20 cm 20-30 cm 20-30 cm 20-30 cm 30-40 cm 30-40 cm 30-40 cm 40-50 cm 40-50 cm 50-60 cm 50-60 cm 0-10 cm 0-10 cm 0-10 cm 10-20 cm 10-20 cm 20-30 cm 0-10 cm 0-10 cm 0-10 cm 10-20 cm 10-20 cm 0-10 cm 0-10 cm 0-10 cm 30-40 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm 10-20 cm 0-10 cm 10-20 cm 0-10 cm 10-20 cm 20-30 cm 0-10 cm 0-10 cm H Chione Chione Unidentifiable Argopecten Chione Unidentifiable Argopecten Chione Unidentifiable Argopecten Chione Unidentifiable Chione Unidentifiable Chione Unidentifiable Argopecten Chione Unidentifiable Argopecten Chione Argopecten Argopecten Argopecten Chione Argopecten Chione Ostrea Chione Unidentifiable Chione Unidentifiable Chione Unidentifiable Chione Chione Argopecten Unidentifiable Argopecten Argopecten Argopecten Argopecten Argopecten 1 - - - - - - - - - - - 1 - - - - - -. - - - - - - - - - - - - - - - - - - - - - - - - - J 0.2 0.1 0.2 0.1 4.1 0.1 0.3 18.7 0.3 <0.1 4.8 0.6 2.1 0.1 2.3 <0.1 <0.1 6 <0.1 0.2 0.9 <0.1 0.2 0.1 0.6 <0.1 0.3 <0.1 0.6 0.2 0.7 0.6 <0.1 0.4 <0.1 0.1 <0.1 <0.1 0.4 <0.1 0.1 <0.1 0.2 Page 2 SDi-6819ShellCat. 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 A CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819^ CA-SDi-6819n CA-SD1-6819J CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- CA-SDi-6819- B 103 103 104 105 106 107 107 108 109 111 112 120 120 120 120 120 132 132 132 132 136 136 136 136 140 140 140 140 140 C - . - - - - - - - - - - - - - - - - - - - - - - - - - - - - D - - - - - - - - • - - - - - - - - - - - - - - - - - - - - - E NO/W30 NO/W30 NO/W30 NO/W30 NO/W30 N10/EO N10/EO N20/EO N30/EO N50/EO N40/W15 - - - - . - - - - - - - - - - - - - - F - - - - - - - - - - - 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 G 0-10 cm 0-10 cm 10-20 cm 20-30 cm 30-40 cm 0-10 cm 0-10 cm 10-20 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm 0-10 cm 10-20 cm 10-20 cm 10-20 cm 10-20 cm 20-30 cm 20-30 cm 20-30 cm 20-30 cm 30-40 cm 30-40 cm 30-40 cm 30-40 cm 30-40 cm H Chione Unidentifiable Unidentifiable Unidentifiable Unidentifiable Argopecten Chione Unidentifiable Unidentifiable Unidentifiable Chione Argopecten Chione Ostrea Unidentifiable Crab shell Argopecten Chione Ostrea Unidentifiable Argopecten Chione Ostrea Unidentifiable Argopecten Chione Ostrea Semele Unidentifiable 1 - - - - - - - - - - - - - - - - - 6 - 4 - 7 - 9 1 • 3 1 - - J 3 0.3 0.1 0.1 <0.1 <0.1 0.1 <0.1 <0.1 <0.1 <0.1 1.8 128.9 3.2 12.4 0.3 1.4 179.1 4.4 15 2.4 258.7 2 19.1 0.1 179 1 8.8 3.2 m it •m M « m Page 3 ill APPENDIX B UPDATED SITE RECORD FORM State of California - The Resources Agency Department of Parks and Recreation ARCHAEOLOGICAL SITE RECORD Permanent Trinomial:. Temporary Number _ Update CA-SDI-6.819 .Supplement W-1878 Page 1. County: of.Agency Designation: San Dieeo 2. USGSQuad:Encinitas r?.5"> 1968 Photorevised 1975 3. UTM Coordinates: Zone:11 473400 Jiasting /_3663SOO _Northing( ) 4. Township 12S Ranee 4W NA 1/4 of NA 1/4 of SW 1/4 of SB 1/4 of Section _22_Base (Mer.)_( ) 5. Map Coordinates: 63 mmS 347 mmE (from NW comer of map) 6. Elevation 380ft 7. Location: on a low flat knoll south and east of two water tank (reservoirs Dl and Dl V southeast of the intersection of two dirt roads/ the site is approximately 0.75 miles west of El Camino Real south of a dirt road/ west of Jon's Nursery 8. Prehistoric X Historic._Protohistoric__9. Site Description:. northwestern portion of the was tested and determined to be a Late Period temporary camp where mainly shellfish processing and seed grinding occurred. The 10. Area: 400 mflengthl x 400 m(width1) 160000 m . Method of Determination: measurement 11. Depth: 70 cm Method of Determination: testing on northwest portion 12. Features: None observed 1 3 . Artifacts: _ From tested northwest portion: 27 nular waste framents. 1 Retouched flake. 1 Scraer fra. 3 Cores. 1 Core/tool. 1 Hammerstone. 2 Manos. 9 Mano fragments. 1 Mano/hammerstone. and 1 1 Pottery sherds 14. Non-Artifactual Constituents: <0.1 grams of bone. 959.7 grams of shell 15. DateRecorded:MarclL25.1992 16. Recorded By:_Danielle Huev 17. Affiliation and Address: Galleeos & Associates 2227 Faraday Aw. Suite C Carlsbad. CA 92008 State of California - The Resources Agency Department of Parks and Recreation ARCHAEOLOGICAL SITE RECORD Permanent Trinomial:, Temporary Number _ CA-SDI-6.819 Supplement W-1878 Page of 4 Agency Designation: 18. Human Remains: None observed 19. Site Integrity:.Fair. Disturbed bv agriculture and water tank construction and maintenance 20. Nearest Water (type, distance and direction^Encinitas Creek. 600 meters, north 21. Largest Body of Water within 1 km (type, distance and directiontBatiquitos Lagoon. 1.5 miles, south 22. Vegetation Community (site vicinity): Coastal Sage Scrub [Plant List ( )] 23. Vegetation Community (on site): Disturbed secondary vegetation and introduced grasses Plant List ( )]. References for above: Munz 1974 24. Site Soil: Sandy Loam ( ) 25. Surrounding Soil:.Sandy Loam 26. Geology Linda Vista Formation f ) 27. Landform: Knoll 28. Slope: 0-10 degrees ( ) 29. Exposure: 360 degrees 30. Landowners) (and/or tenants) and Address: City of Carlsbad Water Utilities .0 -() .0 31. Remarks: Only the northwestern portion of this site was tested 32. References: Gallegos and Huey 1992. Archaeological Test Report for Prehistoric Site CA-SDI-6819. Carlsbad. California 33. Name of Project Archaeological Test Report for Prehistoric Site CA-SDI-6819 34. Type of Investigation:.T. est 35. Site Accession Number ; 36. Photos: 35mm color print frames 18-21 CuratedAt .Taken By: Danielle Huey 37. Photo Accession Number:On File At Gallegos &Associates APPENDIX C RADIOCARBON DATING RESULTS BETA ANALYTIC INC. J. J. STIPP, Ph.D. and M. A. TAMERS. Ph.D. UNIVERSITY BRANCH RO. BOX 248113 CORAL GABLES, FLORIDA 33124 Telephone: 305/667-5167 RADIOCARBON SAMPLE DATA SHEET Please assist us by answering all pertinent questions: It is important for best results. Please contact us at any time for advice, assistance or discussion of results. RllRMITTFR-^(T/n-Z-£<*OS Hf- AfSS<9C/ /FTt^ DATE r*J-' ^™ i/V_/ ^~ ^7 _j/_ AFFII IATIDN- £&/^HlS K Gr7f^-£<£OS, TFI FPHONF: (£/? ) 9 A 7 -£>£53~ ADDRESS: ^^^7 rrf-iZ-A'bA-V /r(/£f. ^>U^IT~^: (- FtU./6/^) W-60$(o 1' A ^ , e~Z> A X 0 A £) 1 f\s\tf PURCHASEL^Ar^-i--* Dn-_L) ^ v. /r /^.UC/o OROFR NO SIIRMITTFR'S SAMPI F P.nnF NO INSTRUCTIONS TO LABORATORY •••••^•M 1 TURNAROUND ^ ANALYZE FOR + RADIOCARBON 0^ "C/«C D '«O/16O D •••••••••NORMAL D PRIORITY D (30 day) (7 day) * TIME-GUIDED (48 HR)» SPECIAL HANDLING> (supplementary fees)EXTENDED COUNTING D (small sample) COLLAGEN EXTRACTION D(bone) ACCELERATOR-AMS D(very small sample)CELLULOSE D(extraction) BULK LOW CARBON MATERIALS D v (soils, sediments) OTHER:. SPECIAL INSTRUCTIONS (other than normal dating procedures) TYPE OF MATERIAL WEIGHT-ESTIMATED AGE RANGE. EVIDENCE OF CONTAMINATION (ROOT PENETRATION. LEACHING. HUMUS, ETC) COLLECTION, TREATMENT AND STORAGE PROCEDURES IT. /A/ STRATIGRAPHIC AND ENVIRONMENTAL DETAILS. (PUT DRAWINGS AND TEXT ON BACK) U*lrr /, M rt Y - «S — S»2 WED 12:11 BETA ANALYTIC INC. MURRY A. TAMERS, PH.D. 4985 S.W. 74 COURT JERRY J. STIPP, PH.D. MIAMI, FLORIDA m CO-DIRECTORS 33155U.S.A. May 6, 1992 Mr. Dennis Gallegos Gal legos and Associates 2227 Faraday Avenue Suite C Carlsbad, CA 92008 Dear Mr, Gallegos: Please find enclosed the results on the shell sample recently submitted for radiocarbon dating analysis, We hope this date will be useful in your studies. Your shell was pretreated the same as the other materials of this sort submitted previously. This consisted of etching away the outer layer with dilute acid. The following benzene synthesis and counting proceeded normally. We are enclosing our Invoice. If there are any questions or 1f you would like to confer on the date, please call us. Sincerely yours, Murry Tamers Co-director P,S, We are sending this letter and the date report sheet by fax in addition to regular air mail. _.,„..»,.. f\f\e i /i ci i^ i - ... if\e MAY — & — "32 D 12 = 12 BETA ANALYTIC INC. JERRY J. STIPP, PH.D. MURRY A. TAMERS, PH.D.CORRECTORS 4985 S.W. 74 COURT MIAMI, FLORIDA 33155 U.SA REPORT OF RADIOCARBON DATING ANALYSES FOR; Dennis Gallegos Gall egos and Associates • DATE RECEIVED: April 23. 1992 DATE REPORTED; May 6> 1992 ' SUBMITTER'S PURCHASE ORDER # OUR LAB NUMBER YOUR SAMPLE NUMBED C-14 AGE YEARS B.P. 11 <; Beta-52923 SDI-6819-140 Unit 1, 30-40cm 1110 -I-/- 50 BP (shell) These dates are reported as RCYBF (radiocarbon years before 1950 A.D.). By international convention, the half-life of radiocarbpn l§ taken as 5568 years and 95% of the activity of the National Bureau of Standards Oxalic Acid (original batch) used as the modern standard. The quoted errors are from the counting of the modern standard, background, and sample being Analyzed. They represent one standard deviatibn statistics (68% probability), based on the random nature