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HomeMy WebLinkAboutHMP 15-01; MARTIN RESIDENCE; ARCHAEOLOGICAL AND PALEONTOLOGICAL MONITORING REPORT; 2019-11-04A ~E,9 r9ia9 n_F 9 • s_m9it 9 h 9 a_nd_A 9 59 S 9 0 9 C 9 1 9 a 9 te 9 s .. , 9 ln 9 c 9 .... ...,_..,. ___ ..,._,... __ """_,,..._-ltJ Arch.ac,o/ogy I E,10/og'I / His to?}/ Pa/eontofog,, / Ari-Ouality/Traffi:J ,-'\coust,cs November 14, 2019 Kevin Conlee Thankful Texans, LLC 8916 Calera Drive Austin, Texas 78735 And Tom Norman Beach City Builders, Inc. 6241 Yarrow Drive, Suite D Carlsbad, California 92011 RE: Archaeological and Paleontological Monitoring Report for the Thankful Texans/Martin Residence Project, Carlsbad, San Diego County, California (Project No. HMP 15~01 [DEV 15005]; CCC Application No. 6-17-0635) Dear Mr. Conlee and Mr. Norman: The following letter report describes the results of the cultural resources monitoring program conducted by Brian F. Smith and Associates, Inc. (BFSA) for the Thankful Texans/Martin Residence Project in Carlsbad, California. This letter report was prepared for submission to the City of Carlsbad as documentation of the completion of the monitoring program conditioned as part of the development approval process by the City of Carlsbad. Introduction and Site Location: The 0.46-acre project is located southeast of the intersection of Highland Drive and Adams Street in the city of Carlsbad, San Diego County, California (Assessor's Parcel Number 206-200-03). The project is located in an unsectioned portion of the former Agua Hedionda Land Grant, USGS 7 .5-minute San Luis Rey, California topographic map, Township 12 South, Range 4 West (Figures 1 and 2, attached). The Area of Potential Effect includes the entire 0.46-acre project. The project plans to develop an approximately 4,935-square foot, two-story single-family residence with a pool as well as associated infrastructure and landscaping (Figure 3, attached). Elevations at the project range from approximately sea level at Agua Hedionda Lagoon to 63 feet above mean sea level at Adams Street. 14010 Pow.;~ Koad, Su~eA f\""3.!!, CA 920o4. Pl,on,, (856) 679-8218 or (9)1) _~1-99)0, rax (856) 679-989~, www l>fsa-c,,.c.om l'>us,~O/f,c,.e 146, 8 16.exCourt, San D,e!f', CA 91.129 Phone \858) +M-0915.1 ~x ,8'58) +M-05'~ This phase of development was approved by the City of Carlsbad and the California Coastal Commission with a condition of approval to provide archaeological, paleontological, and Native American monitoring during grading. The results of the monitoring program are provided below. Archaeological Monitoring Program: The Mitigation Monitoring and Reporting Program for the project was implemented in accordance with City of Carlsbad archaeological guidelines and in compliance with the mitigation monitoring requirements for this project. These requirements included the attendance of the archaeological consultant and Native American representatives at the preconstruction meeting, and subsequently, an archaeologist and Native American monitor on-site during all soil disturbance to identify any cultural artifacts, features, or deposits that might be exposed by grading equipment. Mr. Tracy A. Stropes of BFSA and Banning Taylor, a Native American Luisefio representative from Saving Sacred Sites, attended the preconstruction meeting for this project on January I I, 2019. During the monitoring program, careful attention was paid to the excavation process and the excavated soils. The monitoring program did not result in the discovery of any new prehistoric or historic resources anywhere within the property. Construction monitoring for the project was conducted from January 25 to May 2, 2019 by BFSA staff in cooperation with Native American representatives from Saving Sacred Sites. Pa/eontologica/ Monitoring: Geologically, the project site overlies a thin cover of modern lagoonal deposits and soils that, in turn, overlie the Middle Eocene (-44-million-year-old) Santiago Formation (area labeled ·'Tsa" in Figure 4, after Kennedy and Tan 2005). The estuarine marine and continental sediments of the Santiago Formation are often richly fossiliferous and have yielded important assemblages of estuarine marine invertebrate fossils, as well as aquatic and terrestrial vertebrates, and are accorded a "high paleontological resource sensitivity" (Demere and Walsh 1993; Stephenson et al. 2009). Paleontological monitoring of the project site was conducted intermittently, as needed, between January 25 to May 2, 2019. Monitoring consisted of closely observing trenching, borehole drilling, slope cutting, and excavation activities for the new residential structures being constructed on the site. No fossils derived from fom1ational sedimentary rocks of any sort were observed during paleontological monitoring of the excavation and drilling work, nor were any observed in the cut slopes, temporary spoil, or stock piles generated during these activities. This letter report has been provided to document the completion of the mitigation monitoring program for the Thankful Texans/Martin Residence Project. No discoveries were made during the monitoring of grading, and therefore. no curation of cultural materials or fossils will be required. Submittal of this letter to the City of Carlsbad will complete the mitigation monitoring program for the project. If you have any questions regarding this monitoring program, please contact our office. Sincerely, y A. Stropes, MA, RP A. Principal Investigator Todd A. Wirths, M.S., P.G. 7588 Senior Paleontologist, Calif Prof. Geo!O<!J>l"'-,-._ !\ott,AL O.e-o .,-.:;..--.,,;:,: ~o "' <> & ~ Attachments: References, General Location Map, Project Location Map, Project Dev I~ ilR.l?i~A. WUtTKS : . No.7588 Map, and Geologic Map 3 .. ,, :c----: ._,..~ ~,.~ OF C'1,~\'t'-Y. References: Demere, T.A., and Walsh, S.L. 1993. Paleontological resources, County of San Diego. Unpublished report prepared for the San Diego County Department of Public Works, San Diego, by the Department of Paleontology, San Diego Natural History Museum. San Diego. Pp. i-iii + 1-68, figs. 1-3, 8 maps. Kennedy, M.P, and Tan, S.S. 2005. Geologic map of the Oceanside 30' x 60' quadrangle, California: A digital database: California Geological Survey, Preliminary Geologic Maps, scale I: I 00,000. Stephenson, R.A., Giffen, J.H., and Gibson, E.E. 2009. County of San Diego guidelines for detennining significance [for] paleontological resources. Unpublished report (2007, revised in 2009) prepared for internal use by the San Diego County Land Use and Environment Group, Department of Planning and Land Use and Department of Public Works, San Diego. Pp. i-vi + 1-47, figs. 1-10, table 1. I o!!!!........,!!!!§;.iil!!!!!!§;.iil!!........,!'!'!"!5 miles I Figure 1 General Location Map The Thankful Texans/Martin Residence Project DeLorme (1 :250,000) ...\ .,,. 'C" .... ~ -----~--. \ \ I 1),,, 10 •• . ~ j8 I I ii p-s...w__,...., 0 500 Ill 0 1000 2000 ft Figure 2 Project Location Map The Thankful Texans/Martin Residence Project USGS San Luis Rey Quadrangle (7.5 minute series) Legend MHTL4.44ft NAV088 CJ Project Boundary . I • f ' • j t i I . . . I I I , I ,,.. . I " ~ f • Figure 3 Project Development Map The Thankful Texans/Martin Residence Project ,:::w,__;_, 3-it?"l 0 lOm 0 40 ft "'""' ~ O 500m 0 1000 2000 ft Figure 4 Geologic Map The Thankful Tex.ans/Martin Residence Project Geology after Kennedy and Tan (2005)