CITY OF SAN CARLOS 665 PROSPECT S TREET/MIRABEL P ROJECT INITIAL STUDY/MITIGATED NEGATIVE DECLARATION

Transcription

1 CITY OF SAN CARLOS 665 PROSPECT S TREET/MIRABEL P ROJECT INITIAL STUDY/MITIGATED NEGATIVE DECLARATION Prepared for: CITY OF SAN CARLOS 600 ELM STREET SAN CARLOS, CA Prepared by: 2729 PROSPECT PARK DRIVE, SUITE 220 RANCHO CORDOVA, CA SEPTEMBER 2010

2 C ITY OF S AN C ARLOS 665 P ROSPECT S TREET/MIRABEL P ROJECT INITIAL STUDY/MITIGATED NEGATIVE DECLARATION Prepared for: CITY OF SAN CARLOS 600 ELM STREET SAN CARLOS, CA Prepared by: PMC 2729 PROSPECT PARK DRIVE, SUITE 220 RANCHO CORDOVA, CA SEPTEMBER 2010

3 TABLE OF CONTENTS TABLE OF CONTENTS 1.0 Introduction A. Purpose of the Initial Study/Mitigated Negative Declaration B. Technical Studies C. Acronyms Used Project Description A. Project Location and Setting B. Project Background and History C. Proposed Actions Addressed in the IS/MND D. Regulatory Requirements, Permits, and Approvals Environmental Checklist A. Background B. Environmental Factors Potentially Affected C. Determination D. Evaluation of Environmental Impacts Aesthetics Agriculture And Forest Resources Air Quality Biological Resources Cultural Resources Greenhouse Gas Emissions Geology And Soils Hazards And Hazardous Materials Hydrology And Water Quality Land Use And Planning Mineral Resource Noise City of San Carlos September 2010 i 665 Prospect Street/Mirabel Project Initial Study/Mitigated Negative Declaration

4 TABLE OF CONTENTS 13. Population And Housing Public Services Recreation Transportation/Traffic Utilities And Service Systems Mandatory Findings Of Significance References References APPENDICES A - Air Quality Modeling B - Biological Resource Assessment C - Native American Consultation D - Greenhouse Gas Modeling E - Geotechnical Reports F - Phase I Environmental Site Assessment G - Drainage Review LIST OF TABLES Table 1 Construction Emissions (Proposed Project) Table 2 Estimated Unmitigated Air Quality Emissions Table 3 Heritage Trees identified on the Property Table 4 San Carlos Greenhouse Gas Emission Inventory, Table Prospect Drive Residential Project Greenhouse Gas Emissions Table 6 Short-term Construction-Generated Greenhouse Gas Emissions Table 7 Hazards Materials Sites Table 8 Summary of Hazardous Materials Regulatory Authority Table 9 Typical Construction-Equipment Vibration Levels Table 10 Typical Construction Equipment Noise Levels Table 11 Estimated Peak Hour Vehicle Trips Prospect Street/Mirabel Project City of San Carlos Initial Study/Mitigated Negative Declaration September 2010 ii

5 TABLE OF CONTENTS LIST OF FIGURES Figure 1 Project Location Map Figure 2 General Plan Map Figure 3 Zoning Map Figure 4 Tentative Map Figure 5 Site Plan Figure 6 Boundary and Topographic Survey Figure 7 Preliminary Grading Plan Figure 8 Preliminary Utility Plan Figure 9a Feet Landscape Planting Plan Figure 9b Landscape Irrigation Plan Figure 9c Landscape Hydro-Zone Water Conservation Plan Figure 10 Tree Removal/Retention Plan Figure 11a Project Site Photos - Existing Residence Figure 11b Project Site Photos - Pulgas Creek and Terminus of Prospect Street Figure 11c Project Site Photos - Wooded Areas Figure 12 Previously Recorded Occurences of Special-status species within a One-Mile Radius of the Plan Area Figure 13 Major Fault Zones Figure 14 San Carlos Airport Influence Area Figure 15 FEMA Flood Zone City of San Carlos September 2010 iii 665 Prospect Street/Mirabel Project Initial Study/Mitigated Negative Declaration

6 1.0 INTRODUCTION

7 1.0 INTRODUCTION A. PURPOSE OF THE INITIAL STUDY/MITIGATED NEGATIVE DECLARATION The City of San Carlos (City; San Carlos) is processing an application for an ordinance amendment, tentative map and associated permits and approvals for the development of a seven unit residential project. The purpose of this initial study/mitigated negative declaration is to evaluate the potential environmental effects associated with implementation of the project and to provide mitigation where necessary to avoid, minimize, or lessen those affects. B. TECHNICAL STUDIES Technical studies referenced in this IS/MND are listed below. The technical studies are available at City Hall, 600 Elm Street, San Carlos, California Biological Resources Assessment for the 665 Prospect Street/Mirabel Project dated June 2010 prepared by PMC Phase 1 Environmental Site Assessment dated July 2009 prepared by United Soil Engineering, Inc. and submitted by applicant Geotechnical Investigation Report dated September 2009 and supplemental Engineering Geology Inspection Report dated April 8, 2010 prepared by United Soil Engineering, Inc. Drainage Plan Review dated July 22, 2010 prepared by Storm Water Consulting, Inc. C. ACRONYMS USED The following acronyms have been or may have been used in the preparation of this IS/MND: Acronym/ Abbreviation Definition AB Assembly Bill IPCC Acronym/ Abbreviation Definition Intergovernmental Panel on Climate Change ABAG Association of Bay Area Governments JPA Joint Powers Authority AF acre foot/feet lbs pounds ALUC Airport Land Use Commission Ldn Average Noise Level Over a 24 Hour Period APN Assessors Parcel Number Leq Equivalent Continuous Noise Level ATCM Airborne Toxic Control Measures LOS Level of Service BAAQMD Bay Area Air Quality Management District MBTA Migratory Bird Treaty Act BACT Best Available Control Technology MGD million gallons per day BAOS Bay Area Ozone Strategy msl Mean Sea Level BFE Base Flood Elevation MT million tons BMP Best Management Practices MTC Metropolitan Transportation Commission BRA Biological Resources Assessment NAHC Native American Heritage Commission City of San Carlos September Prospect Street/Mirabel Project Initial Study/Mitigated Negative Declaration

8 1.0 INTRODUCTION Acronym/ Abbreviation Definition Acronym/ Abbreviation Definition CAA Clean Air Act NCCP Natural Community Conservation Plan CAAQS Cal EPA California Ambient Air Quality Standards California Environmental Protection Agency 665 Prospect Street/Mirabel Project City of San Carlos Initial Study/Mitigated Negative Declaration September NFIP NO2 National Flood Insurance Program Nitrogen dioxide Cal Water California Water Company NOX Oxides of nitrogen CAL-OSHA California Division of Occupation Safety and Health NPDES CAP Climate Action Plan NRCS CARB California Air Resources Board O3 Ozone National Pollutant Discharge Elimination System Natural Resources Conservation Service CBC California Building Code OAP Ozone Attainment Plan CCAA California Clean Air Act OHWM Ordinary High Water Mark CDFG California Department of Fish and Game OPR CEG Certified Engineering Geologist OSHA California Governor's Office of Planning and Research Occupational Health and Safety Administration CEQA California Environmental Quality Act PD Planned Development CERCLA Comprehensive Environmental Response, Compensation, and Liability Act PM10 CESA California Endangered Species Act PM2.5 Particulate matter of 10 micrometers in diameter or less Particulate matter less than 2.5 micrometers in diameter or less CFR Code of Federal Regulations PPV Peak Particle Velocity CH4 methane PRC Public Resources Code CLUP Comprehensive Land Use Plan PSA Project Study Area CNDDB California Natural Diversity Database RCRA Resource Conservation and Recovery Act CNEL Community Noise Equivalent Level RMS Root Mean Square CNPS California Native Plant Society ROG Reactive Organic Gases CO Carbon monoxide RTP Regional Transportation Plan CO2 Carbon dioxide RWQCB Regional Water Quality Control Board CO2e Carbon dioxide equivalents SamTrans San Mateo County Transit District CRHR California Register of Historic Resources SARA CWA Clean Water Act SB Senate Bill Superfund Amendments and Reauthorization Act CWHR California Wildlife Habitat Relationship SBSA South Bayside Sewer Authority db decibel SBWMA South Bay Waste Management Authority db(a) A-Weighted Sound Level SCS Sustainable Community Strategy

9 1.0 INTRODUCTION Acronym/ Abbreviation Definition dbh Diameter at Breast Height SFPUC Acronym/ Abbreviation DOF California Department of Finance SO2 Sulfur dioxide Definition San Francisco Public Utilities Commission DOT Department of Transportation SOI Sphere of Influence DTSC Department of Toxic Substance Control SR State Route e.g. exempli gratia SRDC EO Executive Order STOPPP Shoreway Recycling and Disposal Center San Mateo County Storm Water Pollution Prevention Program EOC Emergency Operations Center SWMP Storm Water Management Plan FEMA Federal Emergency Management Agency SWPPP Storm Water Pollution Prevention Plan FESA Federal Endangered Species Act TAC Toxic air contaminant FGC Fish and Game Code TMDL Total Maximum Daily Load FIRM Flood Insurance Rate Maps TNW Traditional Navigable Water FMMP Farmland Mapping and Monitoring Program U.S. EPA United States Environmental Protection Agency FTA Federal Transit Administration USACE United State Army Corps of Engineers gin/sec microinches per second USC United States Code HCP Habitat Conservation Plan USFWS United States Fish and Wildlife Service HUD United States Department of Housing and Urban Development USGS i.e. id est WEAP United State Geological Survey Worker's Environmental Awareness Program in/sec inches per second WSIP Water System Improvement Program City of San Carlos September Prospect Street/Mirabel Project Initial Study/Mitigated Negative Declaration

10 2.0 PROJECT DESCRIPTION

11 2.0 PROJECT DESCRIPTION A. PROJECT LOCATION AND SETTING The 665 Prospect Street/Mirabel Project (proposed project) is located at 665 Prospect Street in San Carlos, California. The City of San Carlos is located in San Mateo County (county) on the San Francisco Peninsula which separates the San Francisco Bay from the Pacific Ocean. The project site is located near the intersection of San Carlos Avenue and West El Camino Real, approximately 0.75 miles southwest of Highway 101 and two miles west of the San Francisco Bay. Figure 1 shows the location of the project site. The project site consists of two parcels with assessor s parcel numbers (APN) and The project site is located in the central portion of the City within an area that is developed with residential uses of varying densities (primarily multifamily). The project site consists of 0.61 acres and is relatively flat. The elevation of the project site is approximately 64 feet above mean sea level (msl). Pulgas Creek is located adjacent to the project site and forms the property boundary to the southwest and southeast with a six to ten foot steep bank. Residential uses surround the project site on the remaining sides. Access to the site is from Prospect Street which terminates where the project site meets Pulgas Creek. An existing one-story residence with an attached garage is located on the project site. The remaining portions of the project site are vacant with substantial tree coverage consisting of 72 trees (several of which meet the City s definition of heritage trees ). B. PROJECT BACKGROUND AND HISTORY The project proponent first submitted an application to the City of San Carlos Planning Department to subdivide and develop the project site on January 6, The application was determined to be incomplete and additional information and materials were requested by the City on February 4, Some of the requested information and materials were submitted to the City; however, the application was again determined to be incomplete by the City on May 14, The remaining required information and materials were subsequently submitted to the City and the application was deemed complete August 31, C. PROPOSED ACTIONS ADDRESSED IN THE IS/MND The City is the lead agency for the proposed project and is the only government entity that will act on the proposed project. Required approvals and permits are listed below. Ordinance Amendment Tentative Map Approval Architectural Review Building Permit Tree Removal Permit Below Market Rate Housing Agreement Maintenance of Areas Adjacent to Stream Channels City of San Carlos September Prospect Street/Mirabel Project Initial Study/Mitigated Negative Declaration

12 2.0 PROJECT DESCRIPTION D. REGULATORY REQUIREMENTS, PERMITS, AND APPROVALS Additional subsequent approvals and permits that may be required from local, regional, state, and federal agencies in the processing of the proposed project that this Mitigated Negative Declaration may be used to support include, but are not limited to, the following: California Department of Fish and Game - Streambed Alternation Agreement. 665 Prospect Street/Mirabel Project City of San Carlos Initial Study/Mitigated Negative Declaration September

13 T:\_GIS\SAN_MATEO\MXD\665 PROSPECT\FIG 1 PROJECT LOCATION.MXD - 8:29:05 AM Project Site Pulgas Creek Source: Bing Maps, FEET Figure 1 Project Location Map

14 3.0 ENVIRONMENTAL CHECKLIST

15 3.0 ENVIRONMENTAL CHECKLIST A. BACKGROUND 1. Project Title: 665 Prospect Street/Mirabel Project 2. Lead Agency Name and Address: City of San Carlos 600 Elm Street San Carlos, CA Contact Person and Phone Number: Stephanie Bertollo Davis, AICP Senior Planning Consultant (650) Gavin Moynahan Assistant Planner (650) Project Location: 665 Prospect Street San Carlos, CA 5. Project Sponsor s Name and Address: Ed Daou Civitaf Three Development Co. 270 Main Street Los Gatos, CA General Plan Designation: The project site is designated by the City of San Carlos 2030 General Plan as Multiple Family, Medium Density, which allows for multi-family dwellings at densities of 21 to 59 dwelling units per acre. Figure 2 shows the General Plan land use designations for the project site and immediately surrounding parcels. The project site is zoned by the City of San Carlos Zoning Ordinance (Title 18 of the Municipal Code) as R-3 / Restricted Multiple-Family Residential, which allows for single-family dwellings and two-family dwellings in a single-family structure; multiple-family dwellings or apartment houses in a single structure; family care homes for the aged; accessory buildings; and certain home occupations. Figure 3 shows the zoning for the project site and immediately surrounding parcels. 7. Description of Project: The proposed project consists of demolition of an existing single-family home on the project site and subdivision of the existing two parcels into seven parcels for the development of seven detached, clustered residential units with shared common ownership ranging from 2,644 to 2,996 square feet in size and two to three stories in height. Site improvements will include a permeable paver shared driveway, drainage inlets that lead to dissipaters into Pulgas Creek and wrought iron fencing, benches, exercise stations, and a decomposed City of San Carlos September Prospect Street/Mirabel Project Initial Study/Mitigated Negative Declaration

16 3.0 ENVIRONMENTAL CHECKLIST granite trail along the creek. The proposed development would result in the creation of approximately 9,500 square feet of new impervious surface area and the removal of approximately 50 trees, including 13 City-defined heritage trees. A tree protection, retention and replanting plan is also proposed. Figures 4 through 10 show the proposed tentative map, site plan, boundary and topographic survey, grading plan, utility plan, landscaping plans, and tree removal and retention plan, respectively. 8. Surrounding Land Uses and Setting: As described above, the project site is located in an area of residential development of varying densities but primarily consisting of multifamily residences with some single-family residences to the south of the project site. Immediately northwest and northeast of the project site are existing multi-family residences including townhomes. Immediately southeast of the project site is Pulgas Creek and immediately southwest is Prospect Street. Other major uses in the immediate area include a public school to the southeast (Central Middle School), two public parks (Burton Park to the southeast and Hillcrest Circle Park to the northwest), and the city s government services complex (including police station) and San Carlos Public Library to the northeast. 9. Other Public Agencies whose Approval Is Required: In CEQA, the term responsible agency includes all public agencies other than the lead agency that may have discretionary actions associated with the implementation of the proposed project. Therefore, the following agencies may have some role in implementing the proposed project and have been identified as potential responsible agencies: California Department of Fish and Game Bay Area Air Quality Management District San Francisco Bay Regional Water Quality Control Board B. ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED The environmental factors checked below would be potentially affected by this project involving at least one impact that is a Potentially Significant Impact, as indicated by the checklist on the following pages. Potentially significant impacts that are mitigated to Less Than Significant impact are not shown here. Aesthetics Agriculture and Forestry Resources Air Quality Biological Resources Cultural Resources Geology and Soils Greenhouse Gas Emissions Hazards/Hazardous Materials Hydrology/Water Quality Land Use/Planning Mineral Resources Noise Population/Housing Public Services Recreation Transportation/Traffic Utilities/Service Systems Mandatory Findings of Significance 665 Prospect Street/Mirabel Project City of San Carlos Initial Study/Mitigated Negative Declaration September

17 T:\_GIS\SAN_MATEO\MXD\665 PROSPECT\FIG 2 GENERAL PLAN.MXD - 10:10:15 AM Legend Project Site Parcels General Plan Mixed Use - Medium Density Mixed Use - Medium High Density Multi-Family - Medium Density Open Space/Schools Park Public Single Family Source: Bing Maps, FEET Figure 2 General Plan Map

18 T:\_GIS\SAN_MATEO\MXD\665 PROSPECT\FIG 3 ZONING MAP.MXD - 9:48:31 AM R-1 R-3 R-3 R-4 R-3 P-C CR R-4 P-C Legend Project Site Parcels Zoning CR / Central Retail Core OS / Open Space P-C / Planned Community R-1 / Single Family Residential R-3 / Restricted Mulit-Family Residential R-4 / Multi-Family Residential Source: Bing Maps, FEET R-1 OS Figure 3 Zoning Map