Appendix F-1
Geotechnical Memorandum for the Reduced
Development Footprint Alternative –
Vernal Pool Minimization
GEOTECHNICAL | ENVIRONMENTAL | MATERIALS
The Las Posas Owner LPV, LLC,
A Delaware Limited Liability Company
2235 Encinitas Boulevard, Suite 216
Encinitas, California 92024
Attention: Mr. Greg Waite
Subject: Reduced Development Footprint Alternative –
Vernal Pool Impact Minimization Plan
Corner of Linda Vista Drive & Los Posas Road
San Marcos, California
Dear Mr. Waite:
2.2 Future Development / Project Description
Under the Reduced Development Footprint Alternative – Vernal Pool Impact Minimization, development would occur within a reduced development footprint in the southern portion of the Project site. The reduced development consists of 228 residential units, including a mix of rowhomes and villas on approximately 9.7 acres of the 33.2-acre project site. The reduced development includes a total of 532 parking spaces and 82,311 square feet of common open space area. The reduced development also includes landscaping, bio-retention areas, and circulation improvements. The remaining approximately 23.5 acres of the 33.2-acre project site would be preserved and restored as open space and habitat area. The reduced development would have a density of approximately 6.86 dwelling units per acre, including the open space and habitat area.
As planning progresses and additional or revised plans become available, they should be provided to GeoTek for review and comment. If plans vary significantly, additional geotechnical field May 8, 2024
Project No. 3649-SD
This memorandum (memo) presents a discussion in regard to a development plan for the subject project location. An updated project discussion, conclusions, and recommendations are presented in this memo.
exploration, laboratory testing and engineering analyses may be necessary to provide specific earthwork recommendations and geotechnical design parameters for actual development plans.
5.0 Conclusions and recommendations
5.1 General
The Reduced Development Footprint Alternative – Vernal Pool Impact Minimization was compared to the findings, conclusions , and recommendations presented in GeoTek’s December 5, 2023 report and a revised report is not recommended at this time. An updated Boring Location Plan presenting the Reduced Development Footprint Alternative – Vernal Pool Impact Minimization is presented as Figure 2. Future development of the property appears feasible from a geotechnical viewpoint provided that the recommendations presented in GeoTek’s referenced December 5, 2023 report are incorporated into the design, construction, and post construction phases of the project. Due to the preliminary nature of this report, supplemental geotechnical evaluations of the property are anticipated at future dates once more detailed development plans are available. Those supplemental geotechnical recommendations will supersede the preliminary recommendations provided in this report.
Closure
The opportunity to be of service is sincerely appreciated. If you should have any questions, please do not hesitate to call our office. Respectfully submitted, GeoTek, Inc. Bruce A. Hick GE 2284 Geotechnical Engineer Christopher D. Livesey CEG 2733 Principal Geologist ENCLOSURES Figure 2 – Boring Location Map
THE LAS POSAS OWNER LPV, LLC. Project No. 3649-SD Reduced Development Footprint Alternative – May 8, 2023 Vernal Pool Impact Minimization Plan Page 2
Selected References GeoTek, Inc. 2023, Reduced Pacific Specific Plan Project, Northwest Corner of Linda Vista, Drive & Los Posas Road, San Marcos, California, Project Number 3649-SD, dated December 5, 2023.
THE LAS POSAS OWNER LPV, LLC. Project No. 3649-SD Reduced Development Footprint Alternative – May 8, 2023 Vernal Pool Impact Minimization Plan Page 3 LEGEND APPROXIMATE LOCATION OF ALLUVIUMBORING & PERCOLATION TEST LOCATIONSLIMITS OF PROPERTY SANTIAGO FORMATION, CIRCLED WHERE BURIED1384 Poinsettia Avenue, Suite A Vista, California 92081 The Los Posas Owner LPV, LLC Reduced Development Footprint – Vernal Pool Impact Minimization Linda Vista Dr. & Las Posas RdSan Marcos, California Figure 2Boring Location Plan B-6 QalTsa
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P-2
P-2 PN: 3649-SDMay2024