Ocean Colony Pump Station and Force Main Project Biological Resources Evaluation

HALF MOON BAY, SAN MATEO COUNTY, CALIFORNIA

Prepared for: Ben L. Shick Shaaf and Wheeler 411 Russell Avenue Santa Rosa, California, 95403

WRA Contacts: Leslie Lazarotti [email protected]

Ellie Knecht [email protected]

Date: May 2017

Updated June 2018

WRA Project No. 26325

2169-G East Francisco Blvd., San Rafael, CA 94702 (415) 454-8868 tel [email protected] www.wra-ca.com

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TABLE OF CONTENTS 1.0 INTRODUCTION ...... 1 1.1 Description of the Study Area ...... 1 1.2 Project Description ...... 1 2.0 REGULATORY BACKGROUND ...... 3 2.1 Sensitive Biological Communities ...... 3 2.2 Federal Jurisdiction over Wetlands and “Other Waters” ...... 4 2.3 State Jurisdiction over Wetlands and “Other Waters” ...... 5 2.3.1 State Water Resources Control Board and Regional Water Quality Control Board ...... 5 2.3.2 California Department of Fish and Wildlife ...... 6 2.4 California Coastal Commission / Half Moon Bay Local Coastal Program ...... 6 2.4.1 California Coastal Commission/Local Coastal Program Jurisdiction over Wetlands ...... 6 2.4.2 The California Coastal Commission Environmentally Sensitive Habitat Area Definition ...... 7 2.4.3 Half Moon Bay LCP Buffer Zones ...... 7 2.4.4 Coastal Development Permit Exemption ...... 8 2.5 Critical Habitat ...... 8 2.6 Wildlife Movement Corridors ...... 9 3.0 METHODS ...... 9 3.1 Biological Communities ...... 9 3.1.1 Non-sensitive Biological Communities ...... 10 3.1.2 Sensitive Biological Communities ...... 10 3.2 Federal Jurisdiction over Wetlands and “Other Waters” ...... 10 3.2.1 Potential Section 404 Jurisdictional Wetlands ...... 10 3.2.2 Potential Section 404 Jurisdictional “Other Waters” ...... 13 3.3 State Jurisdiction over Wetlands and “Other Waters” ...... 13 3.3.1 State Water Resources Control Board and Regional Water Quality Control Board ...... 13 3.3.2 California Department of Fish and Wildlife ...... 14 3.4 California Coastal Commission / Local Coastal Program Jurisdiction ...... 14 3.4.1 Wetlands ...... 14 3.4.2 Streams ...... 16

i 3.5 Special-Status Species ...... 16 3.5.1 Literature Review ...... 16 3.5.2 Site Assessment ...... 17 4.0 RESULTS ...... 17 4.1 General Site Conditions ...... 18 4.2 Biological Communities ...... 20 4.2.1 Non-sensitive Biological Communities ...... 25 4.2.2 Sensitive Biological Communities ...... 26 4.3 Summary of Potentially Jurisdictional Features ...... 27 4.4 Special-Status Species ...... 29 4.4.1 Special-Status Plant Species ...... 29 4.4.2 Special-Status Wildlife Species ...... 32 4.4.3 Critical Habitat ...... 37 4.4.4 Wildlife Corridor Assessment ...... 37 5.0 POTENTIAL IMPACTS AND PROJECT AVOIDANCE and MINIMIZATION MEASURES . 38 5.1 Biological Communities ...... 38 5.2 Special-Status Species ...... 38 5.2.1 Special-Status Plant Species ...... 38 5.2.2 Special-Status Wildlife Species ...... 39 5.2.3 Wildlife Corridors ...... 41 6.0 SUMMARY AND CONCLUSION ...... 41 7.0 REFERENCES ...... 42

ii LIST OF FIGURES

Figure 1. Study Area Location Map ...... 2 Figure 2. Soil Types in the Study Area ...... 19 Figure 3. Biological Communities and Half Moon Bay LCP Protective Buffers ...... 22 Figure 4a. Biological Communities and Public Resources Code Buffers ...... 23 Figure 4b. Biological Communities and Public Resources Code Buffers ...... 24 Figure 5. CNDDB Special-Status Plants Documented within 5 Miles of the Study Area ...... 30 Figure 6. CNDDB Special-Status Wildlife Documented within 5 Miles of the Study Area ...... 33

LIST OF TABLES

Table 1. Biological Communities within the Study Area ...... 21 Table 2. Jurisdictional Features within the Study Area ...... 28

LIST OF APPENDICES

Appendix A – List of Observed Plant and Wildlife Species within the Study Area Appendix B – Jurisdictional Delineation Data Sheets Appendix C – Preliminary Jurisdictional Determination Map Appendix D – Potential for Special-Status Plant and Wildlife Species to Occur in the Study Area Appendix E – Study Area Photographs Appendix F – Preliminary Construction Drawings (Schaaf & Wheeler)

iii LIST OF ACRONYMS AND ABBREVIATIONS

BCC USFWS Birds of Conservation Concern BRE Biological Resources Evaluation Cal-IPC California Invasive Plant Council CCC California Coastal Commission CCR California Code of Regulations CDFW California Department of Fish and Wildlife CESA California Endangered Species Act CEQA California Environmental Quality Act CFGC California Fish and Game Code CFR Code of Federal Regulations CNDDB California Natural Diversity Database CNPS California Native Plant Society Corps U.S. Army Corps of Engineers CRLF California red-legged frog EPA Environmental Protection Agency ESHA Environmentally Sensitive Habitat Area FAC Facultative plant species FACU Facultative upland plant species FACW Facultative wetland plant species FESA Federal Endangered Species Act Inventory California Native Plant Society Inventory of Rare and Endangered Plants LCP Local Coastal Program NL/UPL Not listed/upland plant species NMFS National Marine Fisheries Service NWPL National Wetland Plant List OBL Obligate wetland plant species OHWM Ordinary High Water Mark PRC Public Resources Code Rank California Rare Plant Rank RPW Relatively permanent water RWQCB Regional Water Quality Control Board SFGS San Francisco garter snake SSC CDFW Species of Special Concern SSI CDFW special-status Invertebrates SWRCB State Water Resources Control Board TOB Top of Bank TNW Traditionally navigable waters USFWS U.S. Fish and Wildlife Service USGS U.S. Geological Survey WBWG Western Bat Working Group WRA WRA, Inc.

iv 1.0 INTRODUCTION

On April 12, 2017, WRA, Inc. (WRA) conducted a biological resource evaluation (BRE) at the site of the proposed Ocean Colony Force Main Project (Project) located in the City of Half Moon Bay, San Mateo County. The Project will replace an existing pump station and install a new force main with associated valves and utility vaults. The BRE assessed the proposed Limits of Work which are contained in the Project Area, as well as an additional approximately 200-foot buffer around the Project Area. Collectively, the Limit of Work, Project Area, and 200-foot buffer are referred to as the Study Area (Figure 1).

This report describes the results of the site visit, which assessed the Study Area for the (1) potential to support special-status plant or wildlife species and (2) presence of other sensitive biological resources protected by local, state, or federal laws and regulations. The regulatory framework of this BRE is provided in Section 2.0 of this report. The methods used in the assessment are described in Section 3.0, and the results of the site visit are presented in Section 4.0. A summary of potential impacts to sensitive habitats and species and recommended avoidance and minimization measures is provided in Section 5.0.

A BRE provides general information on the potential presence of sensitive species and habitats. The BRE is not an official protocol-level survey for listed species; however, if special-status species were observed during the site visit, their presence was recorded. Specific findings on the habitat suitability or presence of special-status species or sensitive habitats may require that protocol- level surveys be conducted for Project approval by local, state, or federal agencies. This assessment is based on information available at the time of the study and on site conditions that were observed on the date of the site visit.

1.1 Description of the Study Area

The Study Area is located west of Highway 1 and largely south of Redondo Beach Road in the City of Half Moon Bay, San Mateo County, California. The Study Area is bordered to the west by open space and the Pacific Ocean, to the north by undeveloped open space, and to the east and south by residential homes and a golf course. The northwestern portion of the Study Area is undeveloped. The northeastern and southern portions of the Study Area are located within the Ocean Colony Club, a residential golf course community.

The focus of this report is the approximately 5.74-acre Project Area. In addition, a 200-foot buffer around the Project Area was assessed (approximately 26.45 acres). Collectively, the 5.74-acre Project Area and the 26.45 200-foot buffer are referred to as the Study Area (32.19 acres). The Study Area is situated on a terrace inland of Redondo Beach and includes developed areas, eucalyptus groves, northern coastal scrub, central coast riparian scrub, seasonal wetlands, emergent wetlands, and other waters (ponds). Elevations within the Study Area range from approximately 40 to 100 feet.

1.2 Project Description

The purpose of the Project is to achieve compliance with current State Water Resources Quality Control Board regulations for pump station firm capacity. Firm capacity is the pumping capacity of the pump station with one pump out of service during a peak wet weather event. Firm capacity is a reliability requirement to prevent sanitary sewer overflows. The existing firm capacity of the 1 Detail Area

Study Area

Figure 1. Study Area Location Map

Ocean Colony Pump Station and 0 0.9 1.8 Map Prepared Date: 3/1/2018 Force Main Project Map Prepared By: czumwalt Base Source: Esri Streaming - National Geographic San Mateo County, California Miles Data Source(s): WRA Path: L:\Acad 2000 Files\26000\26325\GIS\ArcMap\March 2018\Fig 1 Location.mxd Ocean Colony pump station is 650 gallons per minute (gpm); the required firm capacity at the pump station, under current regulations, is 950 gpm. Consequently, if one pump becomes inoperable the existing system cannot meet regulatory requirements in a peak wet weather event.

The Project also replaces the existing 50-year-old 6-inch Techite force main pipe which has met its service life and has a history of previous breaks. Techite pipe is no longer used in the industry as it has been found to break catastrophically when a break does occur.

The proposed configuration replaces the existing 6-inch force main and the two existing 47 horse- power pumps with a new 10-inch force main and two 35 horse-power pumps. The sizing is based on the existing peak inflow rate, pump reliability requirements and energy consumption. The larger main diameter combined with a lower horsepower pump requires 80 percent less energy to maintain the existing required flow capacity. The Project does not increase inflow volume and does not accommodate for future volume increases. Any future increase in flow would be out of compliance with FIRM capacity requirements. Consequently, there will be no increase in overall service capacity of the new pump station/force main system.

A portion of the existing force main passes through an Environmentally Sensitive Habitat Area (ESHA). The new force main avoids this area, by shifting the alignment to the east and following the paved golf cart path and then through the golf course maintenance yard before terminating at Redondo Beach Road. No ground disturbance or vegetation removal will occur within the ESHA or within setbacks required by the Coastal Commission. The old main will be filled with concrete and left in place.

2.0 REGULATORY BACKGROUND

The following sections explain the regulatory context of the BRE, including applicable laws and regulations that were applied to the field investigations and analysis of potential project impacts.

2.1 Sensitive Biological Communities

Sensitive biological communities include habitats that fulfill special functions or have special values, such as wetlands, streams, and riparian habitat. These habitats are regulated under federal regulations (such as the Clean Water Act), state regulations (such as the Porter-Cologne Act, Section 1600 of the California Fish and Game Code (CFGC)), and local ordinances or policies (such as City or County Tree Ordinances, Special Habitat Management Areas, applicable Local Coastal Programs, and General Plan Elements). Recommended avoidance and minimization measures for impacts to these communities are discussed in Section 5 of this report.

Other Sensitive Biological Communities

Other sensitive biological communities not discussed in the sections below include habitats that fulfill special functions or have special values. Natural communities considered sensitive are those identified in local or regional plans, policies, and regulations or by the California Department of Fish and Wildlife (CDFW). The CDFW ranks sensitive communities as “threatened” or “very threatened” and keeps records of their occurrences in its Natural Diversity Database (CNDDB). Sensitive plant communities are also identified by CDFW (CDFG 2010) and the California Native 3 Plant Society (CNPS) (CNPS 2017a). Vegetation alliances are ranked 1 through 5 by CDFW based on NatureServe's (2017) methodology, with those alliances ranked globally (G) or statewide (S) as 1 through 3 considered sensitive. Impacts to sensitive natural communities identified in local or regional plans, policies, regulations or by the CDFW or U.S. Fish and Wildlife Service (USFWS) must be considered and evaluated under the California Environmental Quality Act (CEQA) (CCR: Title 14, Div. 6, Chap. 3, Appendix G). Specific habitats may also be identified as sensitive in City or County General Plans or ordinances.

2.2 Federal Jurisdiction over Wetlands and “Other Waters”

Section 404 of the Clean Water Act

Section 404 of the Clean Water Act gives the U.S. Environmental Protection Agency (EPA) and the U.S. Army Corps of Engineers (Corps) regulatory and permitting authority regarding discharge of dredged or fill material into “navigable waters of the United States”. Section 502(7) of the Clean Water Act defines waters as “waters of the United States, including territorial seas.” Section 328 of Chapter 33 in the Code of Federal Regulations (CFR) defines the term “waters of the United States” as it applies to the jurisdictional limits of the authority of the Corps under the Clean Water Act. A summary of this definition of “waters of the U.S.” in 33 CFR 328.3 includes (1) waters used for commerce; (2) interstate waters and wetlands; (3) “other waters” such as intrastate lakes, rivers, streams, and wetlands; (4) impoundments of waters; (5) tributaries to the above waters; (6) territorial seas; and (7) wetlands adjacent to waters.

In the Corps Rivers and Harbors regulations (33 CFR Part 329.4), the term “navigable waters of the U.S.” is defined to include all those waters that are subject to the ebb and flow of the tide, and/or presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce.

The limits of Corps jurisdiction under Clean Water Act Section 404 as given in 33 CFR Section 328.4 are as follows: (a) Territorial seas: 3 nautical miles in a seaward direction from the baseline; (b) Tidal waters of the U.S.: high tide line; or to the limit of adjacent non-tidal waters; (c) Non-tidal waters of the U.S.: ordinary high water mark (OHWM) or to the limit of adjacent wetlands; (d) Wetlands: to the limit of the wetland.

The Corps has developed standard methods and data reporting forms contained in the U.S. Army Corps of Engineers Wetlands Delineation Manual (“Corps Manual”; Environmental Laboratory 1987) and the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region (“Arid West Supplement”; Corps 2008a) to determine the presence or absence of wetlands and Waters of the U.S. The procedures described in the Corps Manual were used to identify wetlands and waters in the Study Area that are potentially subject to regulation under Section 404 of the Clean Water Act.

4 Rapanos Guidance

The Corps and EPA issued joint guidance on implementing the June 19, 2006 U.S. Supreme Court opinions resulting from Rapanos v. United States and Carabell v. United States (Rapanos) cases. Under this guidance, the Corps will maintain jurisdiction over traditionally navigable waters (TNW), relatively permanent water (RPW), and non-relatively permanent waters that have a significant nexus to the biological, chemical, and physical characteristics of a RPW or TNW.

The first standard of the guidance evaluates jurisdiction over a water body that is a RPW (i.e. it flows year-round, or at least “seasonally”) and over wetlands adjacent to such water bodies if the wetlands directly “abut” the water body (i.e. if the wetlands are not separated from the water body by an upland feature such as a berm, dike, or road). In order for the Corps to make a jurisdictional determination of Section 404 wetlands and waters, field staff must determine whether there is a significant hydrologic connection between a non-perennial RPW and a TNW. The second standard, for tributaries that are not RPWs, requires a case-by-case “significant nexus” evaluation to determine the extent of Section 404 jurisdiction.

2.3 State Jurisdiction over Wetlands and “Other Waters”

2.3.1 State Water Resources Control Board and Regional Water Quality Control Board

The Dickey Water Pollution Act of 1949 and Porter Cologne Act of 1969 established the State Water Resources Control Board (SWRCB) and nine Regional Water Quality Control Board (RWQCB) districts in the State of California. The SWRCB and each RWQCB district regulates activities in Waters of the State, which include Waters of the U.S. Waters of the State are defined by the Porter-Cologne Act as “any surface water or groundwater, including saline waters, within the boundaries of the state.”

The RWQCB regulates discharges of fill and dredged material under Section 401 of the Clean Water Act and the Porter-Cologne Water Quality Control Act through the State Water Quality Certification Program. State Water Quality Certification is necessary for all projects that require a Corps permit, or fall under other federal jurisdiction, and have the potential to impact waters of the State. In order for a Section 404 permit to be valid, Section 401 of the Clean Water Act requires a Water Quality Certification or waiver to be obtained. The Water Quality Certification (or waiver) determines that the permitted activities will not violate water quality standards individually or cumulatively over the term of the action. Water quality certification must be consistent with the requirements of the Federal Clean Water Act, the CEQA, the California Endangered Species Act (CESA), and Porter-Cologne Act.

If a proposed project or portion of a proposed project does not require a federal permit, but does involve dredge or fill activities that may result in a discharge to Waters of the State, the RWQCB has the option to regulate the dredge and fill activity under its state authority in the form of Waste Discharge Requirements or Certification of Waste Discharge Requirements. In these cases, a Water Quality Certification is not necessary under Section 401 of the Clean Water Act because federal jurisdiction does not apply.

5 2.3.2 California Department of Fish and Wildlife

Streams, Lakes, and Riparian Habitat

Streams and lakes, as habitat for fish and wildlife species, are subject to jurisdiction by CDFW under Sections 1600-1616 of the CFGC. Alterations to or work within or adjacent to streambeds or lakes generally require a 1602 Lake and Streambed Alteration Agreement. The term stream, which includes creeks and rivers, is defined in the California Code of Regulations (CCR) as follows: “a body of water that flows at least periodically or intermittently through a bed or channel having banks and supports fish or other aquatic life. This includes watercourses having a surface or subsurface flow that supports or has supported riparian vegetation” (14 CCR 1.72). In addition, the term stream can include ephemeral streams, dry washes, watercourses with subsurface flows, canals, aqueducts, irrigation ditches, and other means of water conveyance if they support aquatic life, riparian vegetation, or stream dependent terrestrial wildlife (CDFG 1994). Riparian is defined as, “on, or pertaining to, the banks of a stream;” therefore, riparian vegetation is defined as, “vegetation which occurs in and/or adjacent to a stream and is dependent on, and occurs because of, the stream itself” (CDFG 1994). Removal of riparian vegetation also requires a Section 1602 Lake and Streambed Alteration Agreement from CDFW.

2.4 California Coastal Commission / Half Moon Bay Local Coastal Program

The Half Moon Bay Land Use Policies and Map constitute the Land Use Plan of the Local Coastal Program (LCP). The Zoning Code (Title 18 of the Municipal Code, including Chapter 18.20, which regulates Coastal Development Permits) together with the Zoning District Map constitutes the Implementation Plan of the LCP. The primary goal of the LCP is to ensure that the local government’s land use plans, zoning ordinances, zoning maps, and implemented actions meet the requirements of the provisions and polices of the California Coastal Commission’s (CCC) Coastal Act at the local level. Coastal Resource Conservation Standards are described in Chapter 18.38 of the LCP and define sensitive habitat and coastal resource areas for conservation to include: sand dunes; marine habitats; sea cliffs; riparian areas; wetlands, coastal tidelands and marshes, lakes, ponds, and adjacent shore habitats; coastal or off-shore migratory bird nesting sites; areas used for scientific study, refuges, and reserves; habitats containing unique or rare and endangered species; rocky intertidal zones; coastal scrub communities; wild strawberry habitat; and archaeological resources. Marine and water resources (including riparian habitats) are further defined in Chapter 3 of the Land Use Plan.

2.4.1 California Coastal Commission/Local Coastal Program Jurisdiction over Wetlands

The Coastal Act and LCP regulate the diking, filling, or dredging of wetlands within the coastal zone. Section 30121 of the Coastal Act defines “wetlands” as land “which may be covered periodically or permanently with shallow water and include saltwater marshes, freshwater marshes, open or closed brackish water marshes, swamps, mudflats, and fens.” In addition, the Half Moon Bay LCP defines “wetlands” as an area where the water table is at, near, or above the land surface long enough to bring about the formation of hydric soils or to support the growth of plants, which normally are found to grow in water or wet ground. Wetlands do not include vernally wet areas where the soils are not hydric. The 1981 CCC Statewide Interpretive Guidelines state that hydric soils and hydrophytic vegetation “are useful indicators of wetland conditions,” but the presence or absence of hydric soils and/or hydrophytes alone are not necessarily determinative when the CCC identifies wetlands under the Coastal Act. 6 The boundaries of areas regulated by the Corps and CCC/LCP are often not the same due to the differing goals of the respective regulatory programs and because these agencies use different definitions for determining the extent of wetland areas. For example, the Corps requires that positive indicators for the presence of wetland hydrology, hydric soils, and a predominance of hydrophytic vegetation be present for an area to meet the Corps’ wetland definition. The CCC does not necessarily require that all three wetland indicators (wetland hydrology, hydric soils, and a predominance of hydrophytic vegetation) be present for an area to be determined to by a “wetland”; rather, the presence of hydric soils in the absence of a predominance of hydrophytes (or vice versa) could be sufficient for a positive wetland determination.

2.4.2 The California Coastal Commission Environmentally Sensitive Habitat Area Definition

The CCC defines an ESHA as follows:

"Environmentally sensitive habitat area" means any area in which plant or animal life or their habitats are either rare or especially valuable because of their special nature or role in an ecosystem and which could be easily disturbed or degraded by human activities and developments.“

The CCC Guidelines contain definitions for specific types of ESHAs, including: wetlands, estuaries, streams and rivers, lakes, open coastal waters and coastal waters, riparian habitats, other resource areas, and special-status species and their habitats. For the purposes of this report, WRA has taken into consideration any areas that may meet the definition of any ESHA defined by the CCC guidelines or the Half Moon Bay LCP.

2.4.3 Half Moon Bay LCP Buffer Zones

The Half Moon Bay LCP establishes buffer zones around riparian corridors, streams, lakes, ponds and other wet areas, as follows.

(a) “On both sides of riparian corridors, from the limit of riparian vegetation, extend buffer zones 50 feet outward for perennial streams and 30 feet outward for intermittent streams.

(b) Where no riparian vegetation exists along both sides of riparian corridors, extend buffer zones 50 feet from the bank edge for perennial streams and 30 feet from the midpoint of intermittent streams.

(c) Along lakes, ponds, and other wet areas, extend buffer zones 100 feet from the high water point, except for man-made ponds and reservoirs used for agricultural purposes for which no buffer zone is designated.”

Permitted uses within buffer zones include education and research, consumptive uses as provided for in the CFGC, fish and wildlife management activities, trails and scenic overlooks on public lands, and necessary water supply projects.

7 2.4.4 Coastal Development Permit Exemption

Half Moon Bay Municipal Code Section §18.20.030.2 exempts projects from Coastal Development Permit requirements if they do not result in an addition to, or expansion of an existing facility. Sections 18.20.030.3 (a) and (c) specifically exempt utility projects. No Coastal Development Permit is required if the project entails installation, maintenance, and minor alteration of utilities that do not increase capacity or are required to restore service to prevent service outages. To qualify for this exemption, the project must comply with Coastal Act §30600 and 30610; Public Resources Code (PRC), Title 14, §13250, 13252 and 13253; and Repair, Maintenance and Utility Hook-up Exclusions from Permit Requirements, adopted by the Coastal Commission on Sept. 5, 1978. Pursuant to PRC §13252(3), exempt projects may not include the following activities within 50 feet of environmentally sensitive habitat areas and 20 feet from coastal waters or streams: the placement or removal of rip-rap, rocks, sand, beach materials or any other form of solid materials; or, the use of mechanized equipment. Pursuant to Coastal Commission direction provided in Repair, Maintenance and Utility Hook-up Exclusions, utility projects are exempt if they are conducted within a public utility easement; do not include removal of major vegetation and the site is restored as close as reasonably possible to its original condition.2.5 Special-Status Species

Special-status species include those plants and wildlife species that have been formally listed, are proposed as endangered or threatened for such listing under the federal Endangered Species Act (FESA) or CESA. These Acts afford protection to both listed and proposed species. In addition, CDFW Species of Special Concern (SSC), the National Marine Fisheries Service (NMFS) Species of Concern, USFWS Birds of Conservation Concern (BCC) that are known to nest in the vicinity, sensitive species included in USFWS Recovery Plans, and CDFW special-status invertebrates (SSI) are all considered special-status species. Although CDFW Species of Special Concern generally have no special legal status, they are given special consideration under CEQA. In addition to regulations for special-status species, most birds in the United States, including non- status species, are protected by the Migratory Bird Treaty Act of 1918. Under this legislation, destroying active nests, eggs, and young is illegal. Bat species designated as “High Priority” by the Western Bat Working Group (WBWG) qualify for legal protection under Section 15380(d) of the CEQA Guidelines. Species designated “High Priority” are defined as “imperiled or are at high risk of imperilment based on available information on distribution, status, ecology and known threats”.

Plant species included within the CNPS Inventory of Rare and Endangered Plants (Inventory; CNPS 2017b) with California Rare Plant Rank (Rank) of 1, 2, and 3 are also considered special- status plant species and must be considered under the CEQA. Some Rank 4 plant species meet the definitions of Section 1901 Chapter 10 of the Native Plant Protection Act or Sections 2062 and 2067 of the CFGC that outlines CESA. However, the CNPS and the CDFW strongly recommend that these species be fully considered during the preparation of environmental documentation related to the CEQA. This may be particularly appropriate for the type locality of a Rank 4 plant species, for populations at the periphery of a species range, or in areas where the taxon is especially uncommon or has sustained heavy losses, or from populations exhibiting unusual morphology or occurring on unusual substrates.

2.5 Critical Habitat

Critical habitat is a term defined and used in the FESA as a specific geographic area that contains 8 features essential for the conservation of a threatened or endangered species and that may require special management and protection. The FESA requires federal agencies to consult with the USFWS and/or NMFS to conserve listed species on their lands and to ensure that any activities or projects they fund, authorize, or carry out will not jeopardize the survival of a threatened or endangered species. In consultation for those species with critical habitat, federal agencies must also ensure that their activities or projects do not adversely modify critical habitat to the point that it will no longer aid in the species’ recovery. In many cases, this level of protection is similar to that already provided to species by the FESA “jeopardy standard.” However, areas that are currently unoccupied by the species but which are needed for the species’ recovery, are protected by the prohibition against adverse modification of critical habitat.

2.6 Wildlife Movement Corridors

Wildlife movement between suitable habitat areas typically occurs via wildlife movement corridors. The primary function of wildlife corridors is to connect two larger habitat blocks, also referred to as core habitat areas (Beier 1992, Soule and Terborgh 1999). Prior to the site assessment on April 12, 2017, aerial imagery of the Study Area and surrounding lands were examined for the potential presence of wildlife movement corridors. Additionally, maps from the California Essential Habitat Connectivity Project were consulted to determine if any known or potential wildlife corridors, or natural landscape blocks were known to exist in the area (CDFW 2017b). Wildlife movement corridors or habitat linkages are described by CFGC Sections 1930 and 1930.5.

3.0 METHODS

On April 12, 2017, the Study Area was traversed on foot to determine: (1) plant communities present within the Study Area; (2) if existing conditions provide suitable habitat for any special- status plant or wildlife species; and (3) if sensitive habitats including ESHAs are present. All plant and wildlife species encountered were recorded and are listed in Appendix A. Prior to the site visit, aerial imagery (Google Earth 2017), the National Wetlands Inventory (USFWS 2017a), the Soil Survey of San Mateo Area (USDA 1961), and an online soil survey (CSRL 2017) were reviewed to assess the potential for sensitive biological communities to occur in the Study Area. Plant nomenclature follows the Jepson eFlora (Jepson Flora Project 2017), except where noted. For cases in which regulatory agencies, CNPS, or other entities base rarity on older taxonomic treatments, precedence was given to the treatment used by those entities.

3.1 Biological Communities

Biological communities present in the Study Area were classified based on existing plant community descriptions described in A Manual of California Vegetation, Online Edition (CNPS 2017a). However, in some cases, it was necessary to identify variants of community types or to describe non-vegetated areas that are not described in the literature. Biological communities were classified as sensitive or non-sensitive as defined by the CEQA and other applicable laws and regulations (see Section 2.0, above).

9 3.1.1 Non-sensitive Biological Communities

Non-sensitive biological communities are those communities that are not afforded special protection under CEQA or other state, federal, and local laws, regulations and ordinances. These communities may, however, provide suitable habitat for some special-status plant or wildlife species and are identified or described in Section 4.2, below.

3.1.2 Sensitive Biological Communities

Sensitive biological communities are defined as those communities that are given special protection under CEQA or other applicable federal, state, and local laws, regulations and ordinances. Applicable laws and ordinances are discussed above in Section 2.0. Special methods used to identify sensitive biological communities are discussed below.

3.2 Federal Jurisdiction over Wetlands and “Other Waters”

The methods used in this study to delineate federal jurisdictional wetlands and waters are based on the Corps Manual and Arid West Supplement. Prior to conducting field studies, available reference materials were reviewed, including the following:

 Soil Survey of San Mateo Area (USDA 1961);  An online soil survey (CSRL 2017);  The U.S. Geological Survey (USGS) 7.5-minute quadrangle map for Half Moon Bay (USGS 2017);  National Wetland Inventory data (USFWS 2017a);  Rainfall data (NOAA 2017);  WETS precipitation data (USDA 2017); and  Aerial images of the site (Google Earth 2017).

The delineation portion of the BRE was performed on April 12, 2017. The methods for evaluating the presence of wetlands and “other waters” employed during the site visit are described in detail below.

3.2.1 Potential Section 404 Jurisdictional Wetlands

The Corps has defined the term “wetlands” as follows:

Those areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas.

33 CFR 328.3

The three parameters listed in the Corps Manual that are used to determine the presence of wetlands are: (1) hydrophytic vegetation, (2) wetland hydrology, and (3) hydric soils. According to the Corps Manual:

10 "...[E]vidence of a minimum of one positive wetland indicator from each parameter (hydrology, soil, and vegetation) must be found in order to make a positive wetland delineation."

Data on vegetation, hydrology, and soils collected at sample points during the delineation site visits are reported on standard Corps data forms included in Appendix B. Once an area was determined to be a potential jurisdictional wetland, its boundaries were delineated using Global Positioning System equipment with sub-meter accuracy and mapped on a geo-referenced aerial photograph. The total acreage of potential jurisdictional wetlands was measured digitally using ArcGIS software. Indicators described in the Corps Manual that were used to make wetland determinations at each sample point in the Study Area are summarized below. A map of potentially jurisdictional features within the Study Area is included as Appendix C.

Vegetation

Plant species observed in the Study Area were identified using the Jepson eFlora (Jepson Flora Project 2017). Plants were assigned a wetland indicator status according to the National Wetland Plant List (NWPL; Lichvar et al. 2016). The NWPL classification system is based on the expected frequency of occurrence in wetlands as follows:

Classification (Abbreviation) Definition* Hydrophytic Species? (Y/N) Obligate (OBL) Almost always is a hydrophyte, Y rarely in uplands Facultative Wetland (FACW) Usually is a hydrophyte but Y occasionally found in uplands Facultative (FAC) Commonly occurs as either a Y hydrophyte or non-hydrophyte Facultative Upland (FACU) Occasionally is a hydrophyte but N usually occurs in uplands Upland/Not Listed (UPL/NL) Rarely is a hydrophyte, almost N always in uplands *See Lichvar et al. (2016).

The Arid West Supplement requires that a three-step process be conducted to determine if hydrophytic vegetation is present. The procedure first requires the delineator to apply the “50/20 rule” (Indicator 1) described in the manual. To apply the “50/20 rule”, dominant species are chosen independently from each stratum of the community. In general, dominant species are determined for each vegetation stratum from a sampling plot of an appropriate size surrounding the sample point. In general, dominants are the most abundant species that individually or collectively account for more than 50 percent of the total vegetative cover in the stratum, plus any other species that, by itself, accounts for at least 20 percent of the total cover. If greater than 50 percent of the dominant species has an OBL, FACW, or FAC status, the sample point meets the hydrophytic vegetation criterion.

If the sample point fails Indicator 1 and both hydric soils and wetland hydrology are not present, then the sample point does not meet the hydrophytic vegetation criterion, unless the site is a problematic wetland situation. However, if the sample point fails Indicator 1 but hydric soils and 11 wetland hydrology are both present, the delineator must apply Indicator 2.

Indicator 2 is known as the Prevalence Index. The Prevalence Index is a weighted average of the wetland indicator status for all plant species within the sampling plot. Each indicator status is given a numeric code (OBL = 1, FACW = 2, FAC = 3, FACU = 4, and UPL = 5). Indicator 2 requires the delineator to estimate the percent cover of each species in every stratum of the community and sum the cover estimates for any species that is present in more than one stratum. The delineator must then organize all species into groups according to their wetland indicator status and calculate the Prevalence Index using the following formula, where A equals total percent cover:

AOBL + 2AFACW + 3AFAC + 4AFACU + 5AUPL PI =

AOBL + AFACW + AFAC + AFACU + AUPL

The Prevalence Index will yield a number between 1 and 5. If the Prevalence Index is equal to or less than 3, the sample point meets the hydrophytic vegetation criterion. However, if the community fails Indicator 2, the delineator must proceed to Indicator 3.

Indicator 3 is known as Morphological Adaptations. If more than 50 percent of the individuals of a FACU species have morphological adaptations for life in wetlands, that species is considered to be a hydrophyte, and its indicator status should be reassigned to FAC. If such observations are made, the delineator must recalculate Indicators 1 and 2 using a FAC indicator status for this species. The sample point meets the hydrophytic vegetation criterion if either test is satisfied.

Soils

The Natural Resource Conservation Service defines a hydric soil as follows:

“A hydric soil is a soil that formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part.”

Federal Register July 13, 1994, U.S. Department of Agriculture, NRCS

Soils formed over long periods of time under wetland (anaerobic) conditions often possess characteristics that indicate they meet the definition of hydric soils. Hydric soils can have a hydrogen sulfide (rotten egg) odor, low chroma matrix color, generally designated 0, 1, or 2, used to identify them as hydric, presence of redox concentrations, gleyed or depleted matrix, or high organic matter content.

Specific indicators that can be used to determine whether a soil is hydric for the purposes of wetland delineation are provided in Field Indicators of Hydric Soils in the U.S. (USDA 2010). The Arid West Supplement provides a list of 23 of these hydric soil indicators that are known to occur in the Arid West region. Soil samples were collected and described according to the methodology

12 provided in the Arid West Supplement. Soil chroma and values were determined by utilizing a standard Munsell soil color chart (Munsell Color 2009).

Hydric soils were determined to be present if any of the soil samples met one or more of the 23 hydric soil indicators described in the Arid West Supplement.

Hydrology

The Corps jurisdictional wetland hydrology criterion is satisfied if an area is inundated or saturated for a period sufficient to create anoxic soil conditions during the growing season (a minimum of 14 consecutive days in the Arid West region). Evidence of wetland hydrology can include primary indicators, such as visible inundation or saturation, drift deposits, oxidized root channels, and salt crusts, or secondary indicators such as the FAC-neutral test, presence of a shallow aquitard, or crayfish burrows. The Arid West Supplement contains 16 primary hydrology indicators and 10 secondary hydrology indicators. Only one primary indicator is required to meet the wetland hydrology criterion; however, if secondary indicators are used, at least two secondary indicators must be present to conclude that an area has wetland hydrology.

The presence or absence of the primary or secondary indicators described in the Arid West Supplement was utilized to determine if sample points within the Study Area met the wetland hydrology criterion.

3.2.2 Potential Section 404 Jurisdictional “Other Waters”

The Study Area was also evaluated for the presence of “other waters”. “Other waters” subject to Corps jurisdiction include lakes, rivers, and perennial or intermittent streams. Corps jurisdiction of “other waters” in non-tidal areas extends to the OHWM, defined as:

The term “ordinary high water mark” means that line on the shore established by the fluctuations of water and indicated by physical characteristics such as clear, natural line impresses on the bank, shelving, changes in the characteristics of the soil, destruction of terrestrial vegetation, the presence of litter and debris, or other appropriate means that consider the characteristics of the surrounding areas.

Federal Register Vol. 51, No. 219, Part 328.3 (d). November 13, 1986.

“Other waters” are identified in the field by the presence of a defined river or streambed, a bank, and evidence of the flow of water, or by the absence of emergent vegetation in ponds or lakes. Assessment of the OHWM followed A Field Guide to Identification of the Ordinary High Water Mark in the Arid West Region of the United States (Corps 2008b) and the Corps Regulatory Guidance Letter No. 05-05, Ordinary High Water Mark Identification (Corps 2005).

3.3 State Jurisdiction over Wetlands and “Other Waters”

3.3.1 State Water Resources Control Board and Regional Water Quality Control Board

The SWRCB and RWQCB have not established a formal wetland definition nor have they developed a wetland delineation protocol; however, these agencies generally adhere to the same 13 delineation protocol set forth by the Corps (Environmental Laboratory 1987). Therefore, the methods used to determine potential Waters of the State were the same as those described above for potential Section 404 jurisdiction. Potential SWRCB and RWQCB jurisdiction along streams in the Study was mapped to the top of bank (TOB) elevation and inclusive of adjacent riparian vegetation.

3.3.2 California Department of Fish and Wildlife

CDFW jurisdiction over lakes and streams extends to the TOB of the stream, or the edge of riparian vegetation as determined by edge of dripline, whichever is further. Areas of potential CDFW jurisdiction under sections 1600-1616 of the CFGC were identified in the field.

3.4 California Coastal Commission / Local Coastal Program Jurisdiction

The Study Area is within the Coastal Zone and the Half Moon Bay LCP boundaries; thus, potential wetlands within the Study Area were analyzed in accordance with the Coastal Act and LCP definitions.

3.4.1 Wetlands

The Coastal Act defines wetlands as:

Wetland means lands within the Coastal Zone which may be covered periodically or permanently with shallow water and include saltwater marshes, freshwater marshes, open or closed brackish water marshes, swamps, mudflats, and fens.

PRC Section 30121

The Half Moon Bay LCP defines wetlands as:

…areas where the water table is at, near, or above the land surface long enough to bring about the formation of hydric soils or to support the growth of plants which normally are found to grow in water or wet ground.

(City of Half Moon Bay Zoning Code Chapter 18.20)

CCC Administrative Regulations (Section 13577 (b)) provides a more explicit definition:

Wetlands are lands where the water table is at, near, or above the land surface long enough to promote the formation of hydric soils or to support the growth of hydrophytes, and shall also include those types of wetlands where vegetation is lacking and soil is poorly developed or absent as a result of frequent or drastic fluctuations of surface water levels, wave action, water flow, turbidity or high concentrations of salt or other substance in the substrate. Such wetlands can be recognized by the presence of surface water or saturated substrate at some time during each year and their location within, or adjacent to, vegetated wetlands or deepwater habitats.

The CCC has considered this definition as requiring the observation of one diagnostic feature of a wetland such as wetland hydrology, dominance by wetland vegetation (hydrophytes), or presence 14 of hydric soils as a basis for asserting jurisdiction under the Coastal Act.

In addition to the above definition, the Statewide Interpretive Guidelines for Identifying and Mapping Wetlands and Other Wet Environmentally Sensitive Habitat Areas (CCC 1981) provides technical criteria for use in identifying and delineating wetlands and other ESHAs within the Coastal Zone. The technical criteria presented in the guidelines are based on the Coastal Act definition and indicate that wetland hydrology is the most important parameter for determining a wetland, recognizing that:

. . . the single feature that most wetlands share is soil or substrata that is at least periodically saturated with or covered by water, and this is the feature used to describe wetlands in the Coastal Act. The water creates severe physiological problems for all plants and animals except those that are adapted for life in water or in saturated soil, and therefore only plants adapted to these wet conditions (hydrophytes) could thrive in these wet (hydric) soils. Thus, the presence or absence of hydrophytes and hydric soils make excellent physical parameters upon which to judge the existence of wetland habitat areas for the purposes of the Coastal Act, but they are not the sole criteria.

The technical criteria require that saturation of soil in a wetland must be at or near the surface continuously for a period of time. The meaning of "at or near the surface" generally is considered to be approximately one-foot from the surface or less (the root zone), and the saturation must be continuously present for a period of time (generally more than two weeks) in order to create the necessary soil reduction (anaerobic) processes that create wetland conditions. For example, water from rain during a storm that causes saturation near the surface but then evaporates or infiltrates to 18 inches or deeper below the surface shortly after the storm does not meet the generally accepted criteria for wetland hydrology.

The presence of wetland classified plants or the presence of hydric soils (generally referred to as the "one parameter approach") can be used to identify an area as being a wetland in the Coastal Zone. There is correlation between the presence of wetland plants, wetland hydrology, and/or hydric soils occurring together, especially in natural undisturbed areas, and in many cases where one of these parameters is found (e.g., wetland plants) the other parameters will also occur. But there are situations which can result in the presence of wetland classified plants without there being wetland conditions, and these areas are not wetlands. Where these situations occur, the delineation study must carefully scrutinize whether the wetland classified plants that are present are growing there as hydrophytes in reducing (anaerobic) conditions caused by the presence of wetland hydrology or are there for some other (non-wetland) reason. Examples may include wetland-classified plants which are also salt-tolerant (e.g., alkali heath) and may be responding to either wetland conditions or saline soil conditions, but not necessarily both, and deep-rooted trees (e.g., willows) which are able to tap into deep groundwater sources and can grow in dry surface soils, but are also found in wetland conditions where surface water is present.

Hydric soils can also occur in upland areas especially in areas where historic disturbances may have exposed substratum or in densely vegetated grasslands (mollisols). Similarly, the delineation must determine if the hydric soil indicators are a result of frequent anaerobic conditions or if they are the result of non-wetland conditions.

The Coastal Act uses a broad wetland definition in which the presence of any one of the wetland parameters may indicate presence of a wetland. CCC presumes that the area is a wetland if one 15 of the wetland parameters is present. However, there may be exceptions to this presumption if there is strong positive evidence of upland conditions, as opposed to negative evidence of wetland conditions. Positive evidence of upland hydrology might be the observation that a given area saturates only ephemerally following significant rainfall, that the soil is very permeable with no confining layer, or that the land is steep and drains rapidly. Positive evidence of upland conditions should be obtained during the wet season. Based on these facts, this BRE identified areas within the Study Area that had wetland plants, hydric soils, or wetland hydrology indicators (See Section 3.2 for definitions). Soils, hydrology, and vegetation were examined on April 12, 2017 at locations within the Study Area that had the potential to meet the LCP’s wetland definition. Sample points were taken in representative areas throughout the Study Area. Once an area was determined to be a potential jurisdictional wetland, its boundaries were delineated using sub-meter accuracy GPS equipment and overlain on a topographic map. Jurisdictional wetland acreage was measured digitally using ArcGIS software.

3.4.2 Streams

The CCC considers streams to be a natural watercourse as designated by a solid line or dash and three dots symbol shown on the USGS map most recently published, or any well-defined channel with distinguishable bed and bank that shows evidence of having contained flowing water as indicated by scour or deposit of rock, sand, gravel, soil, or debris (CCC 1981). Prior to visiting the site, WRA reviewed the most recent USGS map for the Study Area for mapped streams present within or near the Study Area.

3.5 Special-Status Species

3.5.1 Literature Review

Potential occurrence of special-status species in the Study Area was evaluated by first determining which special-status species occur in the vicinity of the Study Area through a literature and database search. Database searches for known occurrences of special-status species focused on the Half Moon Bay, Montara Mountain, San Gregorio, and Woodside USGS 7.5-minute quadrangle maps. The following sources were reviewed to determine which special-status plant and wildlife species have been documented to occur in the vicinity of the Study Area:

 CNDDB records (CDFW 2017a)  USFWS Information for Planning and Conservation Species (USFWS 2017b)  CNPS Inventory records (CNPS 2017b)  Consortium of California Herbaria (CCH 2017)  California Department of Fish and Game publication “California’s Wildlife, Volumes I-III” (Zeiner et al. 1990)  A Field Guide to Western Reptiles and Amphibians (Stebbins and McGinnis 2012)  California Amphibian and Reptile Species of Special Concern (Thomson et al 2016)  California Bird Species of Special Concern (Shuford and Gardali 2008)  USFWS Critical Habitat Mapper (USFWS 2017c)  Western Bat Working Group, species accounts (WBWG 2017)  Maps for the California Essential Habitat Connectivity Project (CDFW 2017b).

16 3.5.2 Site Assessment

The site assessment was conducted to determine if existing conditions provide suitable habitat for any special-status plant or wildlife species. The site assessment does not constitute a protocol- level survey and is not intended to determine the actual presence or absence of a species; however, if a special-status species was observed during the site assessment, its presence was recorded and discussed. Following the site assessment, the potential for each special-status species to occur in the Study Area was evaluated according to the following criteria:

 No Potential. Habitat on and adjacent to the site is clearly unsuitable for the species requirements (foraging, breeding, cover, substrate, elevation, hydrology, plant community, site history, disturbance regime).

 Unlikely. Few of the habitat components meeting the species requirements are present, and/or the majority of habitat on and adjacent to the site is unsuitable or of very poor quality. The species is not likely to be found on the site.

 Moderate Potential. Some of the habitat components meeting the species requirements are present, and/or only some of the habitat on or adjacent to the site is unsuitable. The species has a moderate probability of being found on the site.

 High Potential. All of the habitat components meeting the species requirements are present and/or most of the habitat on or adjacent to the site is highly suitable. The species has a high probability of being found on the site.

 Present. Species is observed on the site or has been recorded (e.g. CNDDB, other reports) on the site recently.

Appendix D presents the evaluation of potential for occurrence of each special-status plant and wildlife species known to occur in the vicinity of the Study Area along with a brief description of their habitat requirements, potential for occurrence, and rationale for the classification based on criteria listed above.

4.0 RESULTS

The following sections present the results and discussion of the BRE within the Study Area based on the April 12, 2017 site visit. A list of observed plant and wildlife species is included as Appendix A. A list of special-status plant and wildlife species known to occur in the vicinity and an assessment of their potential to occur within the Study Area is included as Appendix D. Photographs of the Study Area are included as Appendix E.

17 4.1 General Site Conditions

Vegetation

Vegetation within the Study Area is further discussed in Section 4.2 and includes communities dominated by horticulturally grown turf grass, arroyo willow (Salix lasiolepis), coyote brush (Bacharis pilularis), blue gum eucalyptus (Eucalyptus globulus), California blackberry (Rubus ursinus), and narrow-leaved cattail (Typha angustifolia).

Soils

Based on the Soil Survey of San Mateo Area (USDA 1961) and an online soil survey of the Study Area (CSRL 2017), it was determined that the Study Area is underlain by eight soil-mapping units: (1) Colma sandy loam, moderately steep, eroded; (2) Mixed alluvial land; (3) Tunitas clay loam, gently sloping; (4) Watsonville loam, gently sloping; (5) Watsonville loam, gently sloping, eroded; (6) Watsonville loam, sloping, eroded; (7) Watsonville sandy loam, gently sloping; and (8) Watsonville sandy loam, gently sloping, eroded. These soils are described below and depicted in Figure 2.

Colma Series

The Colma series consist of sloping to very steep, moderately coarse textured to medium-textured, well-drained soils that were formed in weakly consolidated marine sediments. The vegetation is chiefly coyote brush and annual grasses. Colma sandy loam, moderately steep, eroded, has slopes ranging from 11 to 21 percent with weakly consolidated marine sediments 10 to 36 inches below the surface. Runoff is medium and the erosion hazard is moderate. The water holding capacity is low and the effective depth of rooting is shallow to moderately deep.

Mixed Alluvial Land

This miscellaneous land type consists of sandy and gravelly deposits along streams. Slope ranges as much as 11 percent. Most of these areas are covered with vegetation. In some places streambank cutting and erosion have occurred.

Tunitas Series

The Tunitas series consists of moderately well drained to imperfectly drained, nearly level to moderately steep soils that have formed in alluvium from sandstone, shale, and some basic igneous rocks. The vegetation is mainly grass, coyote brush, and willows. Tunitas clay loam, gently sloping has slopes ranging from 2 to 5 percent, and less thinning of the surface soil by erosion. Runoff is slow and the erosion hazard is slight.

18 Ocean Colony Pump Station and Force Main Project San Mateo County, California

Figure 2. Soil Types in the Study Area

Project Area

Study Area (200' buffer around Project Area)

Soil Name

Colma sandy loam, moderately steep, eroded

Mixed alluvial land

Tunitas clay loam, gently sloping

Watsonville loam, gently sloping

Watsonville loam, gently sloping, eroded 0 100 200 300 Watsonville loam, sloping, eroded Feet Watsonville sandy loam, gently sloping Map Prepared Date: 3/1/2018 Watsonville sandy loam, gently sloping, eroded Map Prepared By: czumwalt Base Source: Esri Streaming - NAIP 2014 Data Source(s): WRA Path: L:\Acad 2000 Files\26000\26325\GIS\ArcMap\March 2018\Fig Soils.mxd This page intentionally blank. Watsonville Series

Watsonville soils have a dense clayplan subsoil that is underlain by marine sediments. The soils are moderately well drained to imperfectly drained. They have formed in alluvium that was derived principally from sedimentary rocks and from higher lying upland soils. Vegetation consists primarily of coyote brush and an understory of grasses.

Hydrology

The principal natural hydrological sources for the Study Area are precipitation and surface runoff from adjacent lands to the north and east. The golf course irrigation system, which is utilized for maintenance of the golf course lawns, provides additional artificial hydrologic input. Streams mapped within the Study Area do not appear to be a tributary to any of the major streams in the vicinity of the Study Area, specifically Purisima Creek to the south and Mills and Pilarcitos Creeks to the north. The two pond features are connected by culvert pipes to streams mapped in and outside of the Study Area. The pond, stream, and associated wetlands located within the golf course portion of the Study Area store stormwater for use on the golf course lawns. These features were impounded as part of the golf course creation in the 1970s.

Precipitation falls entirely as rainfall within the Study Area. The average annual rainfall for the Half Moon Bay (CA3714) climate station, approximately 5 miles south of the Study Area, is 27.96 inches (USDA 2016). A comparison of rainfall data from the closest weather station with suitable data (Half Moon Bay 0.7 NW [GHCND:US1CASM0016]; NOAA 2017) to long-term WETS data at the Half Moon Bay (CA3714) climate station (USDA 2016) showed that in the three months prior to the April 12, 2017, site visit, a total of 21.80 inches of precipitation occurred, which is wetter than normal for this period of time.

4.2 Biological Communities

Non-sensitive biological communities in the Study Area include developed areas, eucalyptus groves, and northern coastal scrub. Sensitive biological communities found in the Study Area, which are considered ESHAs, include central coast riparian scrub, seasonal wetland, emergent wetland, and other waters (intermittent streams, perennial streams, and ponds; see Table 2). Descriptions for each biological community are provided in the following sections and acreage summations are detailed in Table 1. Figure 3 depicts biological communities in the Study Area in relation to Half Moon Bay LCP protective buffers around sensitive features (30-foot buffer around intermittent streams or riparian edge, 50-foot buffer around perennial streams or riparian edge, and 100-foot buffer around ponds). Figures 4a and 4b depict biological communities in the Study Area in relation to PRC buffers necessary to qualify for a Coastal Development Permit exemption (50-foot buffer around ESHAs and 20-foot buffer around ponds, streams, or riparian edge).

20 Table 1. Biological Communities within the Study Area Biological Community Area (acres)* Non-Sensitive Biological Communities Developed areas 23.41 Eucalyptus groves 3.87 Northern coastal scrub 2.69

SUBTOTAL 29.97 Sensitive Biological Communities Central coast riparian scrub 0.29 Seasonal wetland 0.21 Emergent wetland 0.44 Other Waters (intermittent streams, perennial 1.28 streams, and ponds) SUBTOTAL 2.22

STUDY AREA TOTAL 32.19 *Includes area in the overall Study Area (Project Area plus 200-foot buffer).

21 Ocean Colony Pump Station and Force Main Project San Mateo County, California

Figure 3. Biological Communities and Half Moon Bay LCP Protective Buffers

Project Area (5.74 ac.)

200-foot Buffer (26.45 ac.)

Limit of Work

Half Moon Bay LCP Protective Buffers

Intermittent Stream - OHWM (0.04 ac.)

Perennial Stream - OHWM (0.12 ac.)

Intermittent Stream - TOB (0.10 ac.)

Perennial Stream - TOB (0.18 ac.)

Developed (23.41 ac.)

Eucalyptus Grove (3.87 ac.)

Northern Coastal Scrub (2.69 ac.)

Central Coast Riparian Scrub (0.29 ac.) 0 100 200 300 Pond (1.00 ac.) Feet Emergent Wetland (0.44 ac.) Map Prepared Date: 4/2/2018 Seasonal Wetland (0.21 ac.) Map Prepared By: czumwalt Base Source: Digital Globe 2016 Data Source(s): WRA Path: L:\Acad 2000 Files\26000\26325\GIS\ArcMap\March 2018\Revised Limit of Work\Fig 5 Bio Communities New Buffers.mxd This page intentionally blank. Project Area (5.74 ac.)

200-foot Buffer Area (26.45 ac.)

Limit of Work

PRC Buffer (for CDP exemption) Ocean Colony Pump Station and Force Intermittent Stream - OHWM (0.04 ac.) Main Project Perennial Stream - OHWM (0.12 ac.) San Mateo County, Intermittent Stream - TOB (0.10 ac.) California

Perennial Stream - TOB (0.18 ac.)

Developed (23.41 ac.)

Eucalyptus Grove (3.87 ac.)

Northern Coastal Scrub (2.69 ac.)

Central Coast Riparian Scrub (0.29 ac.)

Pond (1.00 ac.)

Seasonal Wetland (0.21 ac.) Figure 4a. Biological Communities and Public Resources Code Buffers

0 50 100 150

Feet

Map Prepared Date: 4/2/2018 Map Prepared By: czumwalt Base Source: Digital Globe 2016 Data Source(s): WRA Path: L:\Acad 2000 Files\26000\26325\GIS\ArcMap\March 2018\Revised Limit of Work\Fig 6 Bio Communities PRC Buffers.mxd This page intentionally blank. Project Area (5.74 ac.)

200-foot Buffer Area (26.45 ac.)

Limit of Work

PRC Buffer (for CDP exemption) Ocean Colony Pump

Perennial Stream - OHWM (0.12 ac.) Station and Force Main Project Perennial Stream - TOB (0.18 ac.) San Mateo County, Developed (23.41 ac.) California

Eucalyptus Grove (3.87 ac.)

Central Coast Riparian Scrub (0.29 ac.)

Pond (1.00 ac.)

Emergent Wetland (0.44 ac.)

Figure 4b. Biological Communities and Public Resources Code Buffers

0 50 100 150

Feet

Map Prepared Date: 4/2/2018 Map Prepared By: czumwalt Base Source: Digital Globe 2016 Data Source(s): WRA Path: L:\Acad 2000 Files\26000\26325\GIS\ArcMap\March 2018\Revised Limit of Work\Fig 6 Bio Communities PRC Buffers.mxd This page intentionally blank. 4.2.1 Non-sensitive Biological Communities

Developed Areas

The Study Area contains approximately 23.41 acres of developed areas, located within the Limit of Work, the Project Area, and the 200-foot buffer. Areas mapped as developed in the Study Area include Redondo Beach Road and the built areas of the Ocean Colony Club south of Redondo Beach Road (including Ocean Colony Club residences, paved roads, the golf course lawns, ornamental landscaping, and other mowed or maintained vegetation). Vegetation in developed areas includes the horticulturally grown turf grasses such as creeping red fescue (Festuca rubra, FAC) as well as other ruderal and ornamental species, such as English lawn daisy (Bellis perennis, NL), pineapple weed (Matricaria discoidea, FACU), annual blue grass (Poa annua, FAC), rock rose (Cistus sp.), honeysuckle (Lonicera sp.), day lily (Hemerocallis fulva, NL), and fortnight lily (Dietes bicolor, NL). Monterey cypress (Hesperocyparis macrocarpa, NL) are scattered throughout the golf course. This community is not considered sensitive under CEQA or the LCP.

Eucalyptus Groves

The Study Area contains approximately 3.87 acres of eucalyptus grove, located within the Limit of Work, the Project Area, and the 200-foot buffer. Eucalyptus groves in the Study Area were mapped based on the extent of tree canopy and thus some areas are underlain by developed areas. In particular, areas mapped as eucalyptus grove within the Limit of Work are underlain by paved, developed surfaces with some tree canopy overhead. Tree cover dominated by blue gum (UPL) is not described by Holland (1986). However, CNPS (2017a) describe Eucalyptus groves (Eucalyptus [globulus, camaldulensis] Semi-Natural Woodland Stands) as planted groves used for windbreaks and naturalized along stream courses and in uplands. Eucalyptus groves occurred in the northern and central region of the Study Area, north and south of Redondo Beach Road. These areas contained an understory dominated by California blackberry and cape ivy (Delairea odorata, NL) with leaf litter. Blue gum is rated by California Invasive Plant Council (Cal-IPC) as “Moderate” for its ability to invade wildlands and this biological community therefore has no rarity ranking and is not considered sensitive under CEQA or the LCP.

Northern Coastal Scrub

Holland describes northern coyote brush scrub as a cover type of northern (Franciscan) coastal scrub that has low, dense shrubs with scattered grassy openings, usually on windy, exposed sites with shallow, rocky soils. According to CNPS (2017a), the coyote brush scrub (Baccharis pilularis Shrubland Alliance, Rarity Ranking G5 S5) contains shrub cover less than 3 meters tall with variable canopy and herbaceous cover. This habitat occurs state-wide in various habitat types within coastal California. Overall, most growth and flowering occur in this community in late-spring and early-summer (Holland 1986).

The Study Area contains approximately 2.69 acres of northern coastal scrub habitat in the northwestern portion of the Study Area. This community is located within the 200-foot buffer only and does not occur within the Project Area or Limit of Work. Northern coastal scrub within the Study Area is characterized by scattered coyote brush (UPL) and California blackberry (FAC) with non-native annual grasses such as Italian ryegrass (Festuca perennis, FAC), oats (Avena barbata, NL; A. fatua, NL), and Harding grass (Phalaris aquatica, FACU). Given that northern coastal scrub is ranked as G5 S5, it is considered secure both globally and state-wide and is therefore not 25 considered sensitive under CEQA or the LCP.

4.2.2 Sensitive Biological Communities

Central Coast Riparian Scrub

Holland (1986) describes central coast riparian scrub as a scrubby streamside thicket varying from open to impenetrable and dominated by willow (Salix sp.). CNPS (2017a) treats this alliance as arroyo willow thickets (Salix lasiolepis Shrubland Alliance, Rarity Ranking G4 S4). Approximately 0.29 acre of central coast riparian scrub occurs within the approximate central region of the Study Area, entirely within the 200-foot buffer area and outside the Project Area and Limit of Work. Figure 3 displays a 30-foot LCP buffer around this riparian community where it is found adjacent to intermittent streams and a 50-foot LCP buffer where it is found adjacent to perennial streams. Figures 4a and 4b display the 20-foot PRC buffer around this riparian community.

This community is adjacent to an intermittent stream that ultimately flows south and west, entering the Pacific Ocean outside of the Study Area. Central coast riparian scrub in the Study Area is dominated by arroyo willow (Salix lasiolepis, FACW) with some red willow (Salix laevigata, FACW) and a dense understory of California blackberry. Sample point SP3 was taken within the edge of central coast riparian scrub habitat to document the conditions of the riparian floodplain. The sample point was dominated by hydrophytic vegetation; however, did not exhibit any indicators of hydric soils. The sample point was saturated with a high water table. However, saturation and a high water table were also observed in a paired upland sample point (SP4). Thus, it was presumed that saturation and the presence of a high water table may be the result of recent rainfall and a wetter than normal three-month period preceding the site visit. Thus, this community does not meet the 3-parameter criteria to meet the Corps’ wetland definition discussed in Section 3.2.1. The central coast riparian scrub community is rated as apparently secure globally and state-wide; however, because this habitat occurs as a riparian community, it is regulated by the CDFW and RWQCB and is therefore considered sensitive under CEQA. Additionally, riparian communities are regulated under the Coastal Act / City LCP and are therefore considered an ESHA.

Seasonal Wetland

Seasonal wetlands are not described as a distinct series because they are not characterized by a single dominant plant species or a typical group of plant species (CNPS 2017a). An approximately 0.21-acre seasonal wetland feature is located in the northern region of the Study Area, entirely within the 200-foot buffer area and outside the Project Area and Limit of Work. Figure 3 displays a 100-foot LCP buffer around the seasonal wetland feature. Figure 4a displays a 50-foot PRC buffer around the seasonal wetland feature.

The feature was located in a topographic depression and dominated by California blackberry with other facultative species such as rush (Juncus patens, FACW), pennyroyal (Mentha pulegium, OBL), spike rush (Eleocharis macrostachya, OBL), and curly dock (Rumex crispus, FAC). The edge of the seasonal wetland feature was mapped based on subtle changes in topography and a shift to upland shrubs and trees, particularly coyote brush and blue gum eucalyptus. Sample point SP1 was taken within the seasonal wetland depression. The sample point was dominated by hydrophytic species and was partially inundated with 2 to 3 inches of water. No hydric soil indicators were observed in the test pit; however, the thick dark surface indicator was assumed to be present based on the presence of hydrophytic vegetation observed hydrology, and landscape 26 position. Thus, the seasonal wetland meets the Corps’ three-parameter definition of a wetland discussed in Section 3.2.1. The seasonal wetland is subject to Corps and RWQCB jurisdiction as a Waters of the U.S and State, respectively. Additionally, the seasonal wetland is regulated under the Coastal Act / City LCP as an ESHA.

Emergent Wetland

Emergent wetland mapped within the Study Area meets the definition of cattail marsh (Typha angustifolia Herbaceous Alliance, Rank G5 S5) with narrow-leaved cattail comprising greater than 50 percent relative cover and semi-permanent ponding. An approximately 0.44-acre emergent wetland feature is located in the southwestern region of the Study Area along the fringe of a golf course pond and entirely within the 200-foot buffer area and outside the Project Area and Limit of Work. Figure 3 displays a 100-foot LCP buffer around the emergent wetland feature. Figure 4b displays a 50-foot PRC buffer around the emergent wetland feature.

This feature is located in a topographic depression surrounding a perennial stream and leading to a pond, which ultimately drains to the Pacific Ocean outside of the Study Area. Narrow-leaved cattail (OBL) and California bulrush (Schoenoplectus californicus, OBL) are dominant in this feature. The edge of the emergent wetland was mapped based on an obvious transition in grade and transition to the upland grasses growing on the golf course lawn. Sample point SP5, taken within the emergent wetland community, met wetland criteria for hydrophytic vegetation and hydrology with 2 to 3 inches of standing water observed in the sample plot. While no hydric soil indicators were observed in the sample point, the thick dark surface indicator was assumed present based on the presence of hydrophytic vegetation (all OBL species), observed hydrology, and landscape position. Thus, the emergent wetland meets the Corps’ three-parameter definition of a wetland discussed in Section 3.2.1. The emergent wetland is subject to Corps and RWQCB jurisdiction as a Waters of the U.S. and State, respectively. Additionally, the emergent wetland is regulated under the Coast Act / City LCP as an ESHA. The emergent wetland is also subject to CDFW jurisdiction because it occurs in association with the perennial stream.

Other Waters

Approximately 1.28 acres of other waters occur within the Study Area as two ponds, two intermittent streams, and two perennial streams. These features are located outside the Limit of Work. Figure 3 displays a 30-foot LCP buffer around intermittent streams and a 50-foot LCP buffer around perennial streams. Figures 4a and 4b display 20-foot PRC buffers around intermittent streams.

The stream features mapped within the Study Area ultimately flow into the perennial stream and pond mapped in the southwest region of the Study Area, and enter the Pacific Ocean outside of the Study Area. All of the other water features mapped in the Study Area are regulated by the Corps, RWQCB, CCC/LCP, and CDFW.

4.3 Summary of Potentially Jurisdictional Features

A delineation of the Study Area was conducted concurrently with the site visit on April 12, 2017. Areas mapped as potential jurisdictional features include seasonal wetland, emergent wetland, other waters (including streams and ponds), and central coast riparian scrub. Areas subject to Corps, RWQCB, CDFW, and CCC/LCP jurisdiction are summarized in Table 2 and shown in 27 Appendix C. Delineation data sheets are included as Appendix B. Potentially jurisdictional biological communities are discussed in greater detail above in Section 4.2.2.

Table 2. Jurisdictional Features within the Study Area

PROJECT 200’ STUDY AREA BUFFER AREA POTENTIALLY JURISDICTIONAL FEATURES (acres/ (acres/ (acres/ linear ft) linear ft) linear ft) Non-wetland Waters Intermittent Stream (based on OHWM) <0.00 / 31 0.04 / 447 0.04 / 478 Perennial Stream (based on OHWM) 0.02 / 88 0.10 / 536 0.12 / 624 Potential Corps Ponds - 1.00 1.00 Section 404 Jurisdiction Wetlands Seasonal Wetland - 0.21 0.21 Emergent Wetland - 0.44 0.44 TOTAL 0.02 1.79 1.81 Non-wetland Waters Intermittent Stream (based on TOB) 0.01 / 31 0.09 / 447 0.10 / 478 Perennial Stream (based on TOB) 0.03 / 88 0.15 / 536 0.18 / 624 Ponds - 1.00 1.00 Potential RWQCB Section 401 and Wetlands CCC/LCP Seasonal Wetland - 0.21 0.21 Jurisdiction Emergent Wetland - 0.44 0.44 Riparian Central Coast Riparian Scrub - 0.29 0.29 TOTAL 0.04 2.18 2.22 Non-wetland Waters Intermittent Stream (based on TOB) 0.01 / 31 0.09 / 447 0.10 / 478 Perennial Stream (based on TOB) 0.03 / 88 0.15 / 536 0.18 / 624 Potential CDFW Ponds - 1.00 1.00 Section 1602 Jurisdiction Riparian Central Coast Riparian Scrub - 0.29 0.29

Emergent Wetland - 0.44 0.44 TOTAL 0.04 1.97 2.01

28 4.4 Special-Status Species

4.4.1 Special-Status Plant Species

Based upon a review of the resources and databases given in Section 3.4.1, 57 special-status plant species have been documented in the vicinity of the Study Area. Appendix D summarizes the potential for occurrence for each of these special-status plant species to occur in the Study Area. All plant species observed in the Study Area are included in Appendix A. Plant species documented in the CNDDB within 5 miles of the Study Area are show in Figure 4.

Seven special-status plant species were determined to have moderate or high potential to occur in the Study Area: johnny-nip (Castilleja ambigua var. ambigua, Rank 4.2), San Mateo tree lupine (Lupinus arboreus var. eximius, Rank 3.2), Davidson's bush-mallow (Malacothamnus davidsonii, Rank 1B.2), marsh microseris (Microseris paludosa, Rank 1B.2), Choris' popcornflower (Plagiobothrys chorisianus var. chorisianus Rank 1B.2), Oregon polemonium (Polemonium carneum, Rank 2B.2), and coastal triquetrella (Triquetrella californica, Rank 1B.2). None of these species were observed during the site visit within the Study Area. These seven plant species have no potential to occur within the Limit of Work due to lack of suitable habitat.

The remaining 50 special-status plant species known to occur in the vicinity of the Study Area were determined to be unlikely or have no potential to occur in the Study Area due to lack of suitable substrate soils (e.g. rocky, sandy, and serpentine substrate does not occur within the Study Area), or due to lack of associated vegetation communities (e.g. chaparral, closed-cone coniferous forest, etc.) necessary to support the special-status plants.

High Potential to Occur within the Study Area (No Potential to Occur within the Limit of Work)

Choris’ popcorn flower (Plagiobothrys chorisianus var. chorisianus), CNPS Rank 1B.2. Choris’ popcorn flower is an annual herbaceous species in the family Boraginaceae. This species blooms between March and June. Typical habitat for this species includes chaparral, coastal prairie, and coastal scrub. Choris’ popcorn flower has been recorded in Alameda, San Francisco, San Mateo, and Santa Cruz counties at elevations ranging from 15 to 160 meters and blooms from March through June. The closest documented occurrence of Choris’ popcorn flower is from 2013 approximately 0.5 miles north of the Study Area and there are multiple other occurrences of this species within five miles of the Study Area (CDFW 2017a). Choris’ popcorn flower was not observed in the Study Area during the site visit. The Study Area was determined to have high potential to support this species due to the presence of suitable coastal scrub habitat and the number of occurrences in close proximity to the Study Area. However, this species has no potential to occur within the Limit of Work due to lack of suitable habitat.

Moderate Potential to Occur within the Study Area (No Potential to Occur within the Limit of Work)

Johnny-nip (Castilleja ambigua var. ambigua), CNPS Rank 4.2 . Johnny-nip is an annual (hemiparasitic) herb in the Orobanchaceae family that occurs in coastal bluff scrub, coastal prairie, coastal scrub, marshes and swamps, valley and foothill grassland, and along vernal pools margins. It can be found at elevation ranges typically from 0 to 1,430 feet (0 to 435 meters) during its bloom period between March and August. Limited occurrence information has been documented for this species and the closest occurrence was seen at Moss Beach in 1905. Johnny-nip was not observed in the Study Area during the site visit. The Study Area was determined to have moderate 29 CNDDB Plant Occurrences 4, Kings Mountain manzanita

1, Choris' popcornflower 5, perennial goldfields

2, coastal marsh milk-vetch 6, woodland woollythreads

3, Kellogg's horkelia

2

3

1 1 1 5 5 1 1 5 5 5 5 5 5 4 1 1 1 6

Study Area 1

5 -m i le B u ff er

Figure 5. CNDDB Special-status Plants Documented within 5 Miles of the Study Area

Ocean Colony Pump Station and 0 0.5 1 2 Map Prepared Date: 3/1/2018 Force Main Project Map Prepared By: czumwalt Base Source: National Geographic San Mateo County, California Miles Data Source(s): CNDDB January 2017 Path: L:\Acad 2000 Files\26000\26325\GIS\ArcMap\March 2018\Fig 4 CNDDB Plants.mxd potential to support this species due to the presence of suitable coastal scrub habitat. However, this species has no potential to occur within the Limit of Work due to lack of suitable habitat.

San Mateo tree lupine (Lupinus arboreus var. eximius), CNPS Rank 3.2. San Mateo tree lupine is perennial evergreen shrub that occurs in the Fabaceae family. This species typically occurs in chaparral and coastal scrub habitats at elevations ranging from 300 to 1,800 feet (90 to 550 meters). It blooms between April and July and has been recorded in San Mateo and Sonoma counties. There is limited occurrence information for this species. San Mateo tree lupine was not observed in the Study Area during the site visit. San Mateo tree lupine was determined to have moderate potential to occur within the Study Area due to the presence of coastal scrub habitat that may be suitable for this species. However, this species has no potential to occur within the Limit of Work due to lack of suitable habitat.

Davidson’s bushmallow (Malacothamnus davidsonii), CNPS Rank 1B.2. Davidson’s bushmallow is a perennial deciduous shrub from the Malvaceae family. This species typically occurs in chaparral, cismontane woodland, coastal scrub, and riparian woodland communities at elevations ranging from 185 to 855 meters. Davidson’s bushmallow blooms between June and January and has been recorded in Los Angeles, Monterey, Santa Clara, San Luis Obispo, and San Mateo counties. The nearest documented occurrence is from Crystal Spring Reservoir from 1912. Davidson’s bushmallow was not observed during the site visit. Davidson’s bushmallow was determined to have moderate potential to occur within the Study Area due to the presence of coastal scrub habitat. However, this species has no potential to occur within the Limit of Work due to lack of suitable habitat.

Marsh microseris (Microseris paludosa), CNPS Rank 1B.2. Marsh microseris is a perennial herb in the family Asteraceae. It occurs in closed-cone coniferous forest, cismontane woodland, coastal scrub, and valley and foothill grassland, often where grasses are low-growing. It is recorded from 5 to 300 meters in elevation in Mendocino, Monterey, Marin, San Benito, Santa Cruz, San Luis Obispo, and Sonoma counties, and is presumed extirpated from San Francisco and San Mateo counties. It blooms between April and June. The nearest documented occurrence is from 2004 and is located 14 miles from the Study Area in Pescadero State Beach. Marsh microseris was not observed in the Study Area during the site visit. Marsh microsis was determined to have a moderate potential to occur in the Study Area due to the presence of coastal scrub habitat. However, this species has no potential to occur within the Limit of Work due to lack of suitable habitat.

Oregon polemonium (Polemonium carneum), CNPS Rank 2B.2. Oregon polemonium is a perennial herb in the family Polemoniaceae. It occurs in coastal prairie, coastal scrub, and lower montane coniferous forest. Oregon polemonium is recorded from 0 to 1830 meters in elevation in Del Norte, Siskiyou, Humboldt, Sonoma, Marin, Alameda, San Francisco, and San Mateo counties. It blooms between April and September. The nearest documented occurrence is from 1916 and is located approximately 8 miles from the Study Area in Pilarcitos Dam and is presumed extant at that location. Oregon polemonium was not observed in the Study Area during the site visit. Oregon polemonium was determined to have a moderate potential to occur in the Study Area due to the presence of coastal scrub habitat. However, this species has no potential to occur within the Limit of Work due to lack of suitable habitat.

31 Coastal triquetrella (Triquetrella californica), CNPS Rank 1B.2. Coastal triquetrella is a moss in the Pottiaceae family that occurs in coastal bluff scrub and coastal scrub on soil at elevations ranging from 30 to 330 feet (10 to 100 meters). The Study Area contains suitable habitat such as coastal scrub and areas of exposed soils. The nearest documented occurrence is from 2006 and is located approximately 11 miles from the Study Area in Golden Gate National Recreation Area and is presumed extant at that location. Coastal triquetrella was not observed in the Study Area during the site visit. This species has moderate potential to occur in coastal scrub habitat within the Study Area. However, this species has no potential to occur within the Limit of Work due to lack of suitable habitat.

4.4.2 Special-Status Wildlife Species

Based upon a review of the resources and databases given in Section 3.5, 72 special-status wildlife species have been documented, or have potential to occur in the vicinity of the Study Area. Appendix D summarizes the potential for each of these species to occur in the Study Area. Any wildlife species documented in the CNDDB within 5 miles of the Study Area are shown in Figure 5. Of the 72 special-status wildlife species documented in the vicinity of the Study Area, one is present, and seven have a moderate or high potential to occur within the Study Area. Two of these species, California red-legged frog (Rana draytonii), and San Francisco garter snake (Thamnophis sirtalis tetrataenia), may occur in certain aquatic habitats within the Study Area, but are unlikely to be found within the entirely developed sections within the Limit of Work. Further discussion is included for each of these species.

The majority of species have no potential or are unlikely to occur due to a lack of suitable habitat components (such as tidal salt marsh, marine environments, sand or dunes, cavity bearing trees, caves, mines or abandoned buildings) or the Study Area is outside of the known distribution of the species. Special-status wildlife species that are present or have a moderate or high potential to occur in the Study Area are discussed below.

Present within the Study Area

Allen’s hummingbird (Selasphorus sasin). USFWS Bird of Conservation Concern. Allen’s hummingbird, common in many portions of its range, is a summer resident along the majority of California’s coast and a year-round resident in portions of coastal southern California and the Channel Islands. Breeding occurs in association with the coastal fog belt, and typical habitats used include coastal scrub, riparian, woodland and forest edges, and eucalyptus and cypress groves (Mitchell 2000). This species feeds on nectar, as well as insects and spiders.

During the site assessment on April 12, 2017 several Allen’s hummingbirds were observed in the scrub habitats near the northern portion of the Study Area. While no active nests were observed, nesting and territorial behavior was observed in those habitats.

Moderate Potential to Occur within the Study Area and within or adjacent to the Limit of Work

White-tailed kite (Elanus leucurus). CDFW Fully Protected Species. The white-tailed kite is resident in open to semi-open habitats throughout the lower elevations of California, including grasslands, savannahs, woodlands, agricultural areas and wetlands. Vegetative structure and prey availability seem to be more important habitat elements than associations with specific plants or vegetative communities (Dunk 1995). Nests are constructed mostly of twigs and placed in trees, 32 CNDDB Wildlife Occurrences 5, saltmarsh common yellowthroat

1, California giant salamander 6, San Francisco dusky-footed woodrat

2, California red-legged frog 7, steelhead - central California coast DPS

3, marbled murrelet 8, western bumble bee

4, monarch - California overwintering population 9, western snowy plover

7 7

2 2 6 2

2 4 5 9 2 2 5 2 2 8 7

4 2

1 2 2 3 2 Study Area

1 4

5 1 -m i 1 le B u ff 2 er 5

Figure 6. CNDDB Special-status Wildlife Documented within 5 Miles of the Study Area

Ocean Colony Pump Station and Force Main Project 0 0.5 1 2 Map Prepared Date: 3/1/2018 Map Prepared By: czumwalt San Mateo County, California Base Source: National Geographic Miles Data Source(s): CNDDB January 2017 Path: L:\Acad 2000 Files\26000\26325\GIS\ArcMap\March 2018\Fig 3 CNDDB Wildlife.mxd often at habitat edges. Nest trees are highly variable in size, structure, and immediate surroundings, ranging from shrubs to trees greater than 150 feet tall (Dunk 1995). This species preys upon a variety of small mammals, as well as other vertebrates and invertebrates.

This species has been commonly observed in the local area (eBird 2017). In addition, trees suitable for nesting and open grassland adjacent to the Project Area provide suitable foraging habitat. Because the species has been identified in the local area, and suitable nesting habitat is present adjacent to the Limit of Work, the species has a moderate potential to occur within the Study Area and within or adjacent to the Limit of Work.

Bryant’s savannah sparrow (Passerculus sandwichensis alaudinus). CDFW Species of Special Concern. This subspecies of the common and widespread savannah sparrow is a year- round resident of the coastal California fog belt. It typically occupies upper tidally-influenced habitats, often found where wetland communities merge into grassland. Nesting occurs in vegetation on or near the ground, including along roads, levees, and canals (Shuford and Gardali 2008). Like most sparrows, Bryant’s consumes primarily invertebrates and vegetable matter (e.g., seeds).

This species has been commonly observed in the local area (eBird 2017). In addition, transitional habitats between wetlands and uplands are present in several sections of the Study Area to support nesting. Given the species has been observed in the local area, and suitable habitat for nesting and foraging is present, the species has a moderate potential to occur within the Study Area and within or adjacent to the Limit of Work.

Grasshopper sparrow (Ammodramus savannarum). CDFW Species of Special Concern. The grasshopper sparrow is a summer resident in California, wintering in Mexico and Central America. This species occurs in open grassland and prairie-like habitats with short- to moderate-height vegetation, and often scattered shrubs (Shuford and Gardali 2008). Both perennial and annual (non-native) grasslands are used. Nests are placed on the ground and well concealed, often adjacent to grass clumps (Shuford and Gardali 2008). Grasshopper sparrows are secretive and generally detected by voice. Insects comprise the majority of the diet.

Grasshopper sparrows generally prefer moderately open grasslands and prairies with patchy bare ground. They select different components of vegetation depending on grassland ecosystem and typically avoid grasslands with extensive shrub cover, although some level of shrub cover is important for birds in western regions (Vickery 1996).

Grasshopper sparrows are ground-nesting birds, and the nest cup is domed with overhanging grasses and a side entrance. Eggs are usually laid in early to mid-June and hatch 12 days later. Males and females provide care to the young and second broods are common. This species feeds primarily on insects (Vickery 1996).

This species has been commonly observed in the local area (eBird 2017). Additionally, grasslands along the western border of the Study Area are typical habitats used by the species for nesting and foraging. Given the documented occurrences in the area, as well as potentially suitable habitat, this species has a moderate potential to occur within the Study Area and within or adjacent to the Limit of Work.

34 Loggerhead shrike (Lanius ludovicianus). CDFW Species of Special Concern, USFWS Bird of Conservation Concern. The loggerhead shrike is a year-round resident and winter visitor in lowlands and foothills throughout California. This species is associated with open country with short vegetation and scattered trees, shrubs, fences, utility lines and/or other perches. Although they are songbirds, shrikes are predatory and forage on a variety of invertebrates and small vertebrates. Captured prey items are often impaled for storage purposes on suitable substrates, including thorns or spikes on vegetation, and barbed wire fences. Nests in trees and large shrubs; nests are usually placed three to ten feet off the ground (Shuford and Gardali 2008).

Occurrences of this species in the local area are infrequent over the last 3 to 5 years (eBird 2017). However, the presence of a habitat mosaic with eucalyptus grove, wetlands, ponds, fairways and grasslands are typical foraging habitat for this species. Additionally, scrub and other vegetation near the northern portion of the Study Area is suitable to support nesting by the species. Due to the documented occurrences nearby, as well as potentially suitable foraging and nesting habitat, the species has a moderate potential to occur within the Study Area and within or adjacent to the Limit of Work.

San Francisco (saltmarsh) common yellowthroat (Geothlypis trichas sinuosa), USFWS Bird of Conservation Concern, CDFW Species of Special Concern. This subspecies of the common yellowthroat is found in freshwater marshes, coastal swales, riparian thickets, brackish marshes, and saltwater marshes. Their breeding range extends from Tomales Bay in the north, Carquinez Strait to the east, and Santa Cruz County to the south. This species requires thick, continuous cover such as tall grasses, tule patches, or riparian vegetation down to the water surface for foraging and prefers willows for nesting (Shuford and Gardali 2008).

This species has been regularly observed within the vicinity of the Study Area (eBird 2017). This species requires thick continuous vegetation which is absent throughout most of the Study Area. However, riparian vegetation through the stream may be suitable to provide nesting habitat for the species. Given the presence of the species in the local area, as well as limited, but potentially suitable habitat, this species has a moderate potential to occur within the Study Area and within or adjacent to the Limit of Work.

Moderate or High Potential to Occur within the Study Area, but are Unlikely to Occur within the Limit of Work

Both of the following species have the potential to occur within the Study Area; however, they are unlikely to occur within the Limit of Work (where work will actually take place). The Limit of Work is composed of developed and continuously disturbed habitats without aquatic features or suitable upland habitat to support any life stage of these species.

California red-legged frog (Rana draytonii; CRLF), Federal Threatened Species, CDFW Species of Special Concern. California red-legged frog (CRLF) is dependent on suitable aquatic, estivation, and upland habitat. During periods of wet weather, starting with the first rainfall in late fall, red-legged frogs disperse away from their estivation sites to seek suitable breeding habitat. Aquatic and breeding habitat is characterized by dense, shrubby, riparian vegetation and deep, still or slow-moving water. Breeding occurs between late November and late April. CRLF estivate (period of inactivity) during the dry months in small mammal burrows, moist leaf litter, incised stream channels, and large cracks in the bottom of dried ponds.

35 There are four physical and biological features that are considered to be essential for the conservation or survival of a species. The features for the CRLF include: aquatic breeding habitat; non-breeding aquatic habitat; upland habitat; and dispersal habitat (USFWS 2010).

Aquatic breeding habitat consists of low-gradient fresh water bodies, including natural and manmade (e.g. stock) ponds, backwaters within streams and creeks, marshes, lagoons, and dune ponds. It does not include deep water habitat, such as lakes and reservoirs. Aquatic breeding habitat must hold water for a minimum of 20 weeks in most years. This is the average amount of time needed for egg, larvae, and tadpole development and metamorphosis so that juveniles can become capable of surviving in upland habitats (USFWS 2010).

Aquatic non-breeding habitat may or may not hold water long enough for this species to hatch and complete its aquatic life cycle, but it provides shelter, foraging, predator avoidance, and aquatic dispersal for juvenile and adult CRLF. These waterbodies include plunge pools within intermittent creeks; seeps; quiet water refugia during high water flows; and springs of sufficient flow to withstand the summer dry period. The CRLF can use large cracks in the bottom of dried ponds as refugia to maintain moisture and avoid heat and solar exposure (Alvarez 2004). Non-breeding aquatic features enable CRLF to survive drought periods, and disperse to other aquatic breeding habitat (USFWS 2010).

Upland habitats include areas within 300 feet of aquatic and riparian habitat and are comprised of grasslands, woodlands, and/or vegetation that provide shelter, forage, and predator avoidance. These upland features provide breeding, non-breeding, feeding, and sheltering habitat for juvenile and adult frogs (e.g., shelter, shade, moisture, cooler temperatures, a prey base, foraging opportunities, and areas for predator avoidance). Upland habitat can include structural features such as boulders, rocks and organic debris (e.g. downed trees, logs), as well as small mammal burrows and moist leaf litter (USFWS 2010).

Dispersal habitat includes accessible upland or riparian habitats between occupied locations within 0.7 mile of each other that allow for movement between these sites. Dispersal habitat includes various natural and altered habitats such as agricultural fields, which do not contain barriers to dispersal. Moderate- to high-density urban or industrial developments, large reservoirs, and heavily traveled roads without bridges or culverts are considered barriers to dispersal (USFWS 2010). Although CRLF is highly aquatic, this species has been documented to make overland movements of several hundred meters and up to one mile during a winter-spring wet season in Northern California (Bulger et al. 2003, Fellers and Kleeman 2007) and 2,860 meters (1.8 miles) in the central California coast (Rathbun and Schneider 2001). Frogs traveling along water courses can exceeded these distances.

Within the Study Area, two ponds, streams, and various wetlands surrounding the streams have high potential to support CRLF. The species has been documented within 0.7 mile to the north and south of the Study Area (CDFW 2017a). While this species may exist within the surrounding habitat features, no suitable habitat is found within the Limit of Work identified in Figure 3. The Limit of Work is entirely composed of developed roadways, or developed and maintained golf course fairways. During site visit, the biologist noted that landscaping crews continuously drove vehicles through the north/south portion of the Limit of Work. It was also noted that local residents drove cars, walked dogs, or biked along the east/west leg of the Limit of Work. Given that areas within the Limit of Work do not contain any suitable habitat for the species, and continuous

36 anthropogenic disturbances are present from vehicles, landscaping crews, golfers, residents and pets, the species is unlikely to be found within the Limit of Work.

San Francisco Garter Snake (Thamnophis sirtalis tetrataenia). Federal Endangered, State Endangered, CDFW Fully Protected. Historically, San Francisco garter snake (SFGS) occurred in scattered wetland areas on the San Francisco Peninsula. This species was historically documented from approximately the San Francisco County line south along the eastern and western bases of the Santa Cruz Mountains, at least to the Upper Crystal Springs Reservoir, and along the coast south to Año Nuevo Point, San Mateo County, and Waddell Creek, Santa Cruz County. The preferred habitat of SFGS is a densely vegetated pond near an open hillside where they can sun themselves, feed, and find cover in rodent burrows; however, considerably less ideal habitats can be successfully occupied (USFWS 2006).

There are two significant components to SFGS habitat: 1) ponds that support CRLF, American bullfrog (Lithobates catesbeiana), or the Sierran treefrog (Pseudacris sierra) and 2) surrounding upland that supports Botta's pocket gopher (Thomomys bottae) and the California meadow vole (Microtus californicus) (USFWS 2006). Ranid frogs are an obligate component of the SFGS's diet (USFWS 2006).

Occurrences of this species have been documented in the CNDDB more than five miles north and south of the Study Area (CDFW 2017a). The two key habitat components for this species, including ponds with basking locations and a population of prey (i.e. ranid frogs), are both present within the Study Area, but not within the Limit of Work. Thus, this species has moderate potential to occur within the Study Area; however, is unlikely to occur within the Limit of Work. The Limit of Work is entirely composed of developed roadways, or developed and maintained golf course fairways. During site visit, the biologist noted that landscaping crews continuously drove vehicles through the north/south portion of the Limit of Work. It was also noted that local residents drove cars, walked dogs, or biked along the east/west leg of the Limit of Work. Given that areas within the Limit of Work do not contain any suitable habitat for the species, and continuous anthropogenic disturbances are present from vehicles, landscaping crews, golfers, residents and pets, the species is unlikely to be found within the Limit of Work.

4.4.3 Critical Habitat

A review of the background literature showed that the Study Area does not currently contain any critical habitat.

4.4.4 Wildlife Corridor Assessment

The Study Area does not fall within a natural landscape block, essential connectivity area, or small natural area identified by the California Essential Habitat Connectivity Project (CDFW 2017b). The Study Area forms the southeastern edge of a mostly undeveloped parcel where it adjoins development associated with the Half Moon Bay Golf Links golf course. Undeveloped habitat to the north is large enough to be considered a core habitat area. However, because the Study Area does not connect to a second core habitat area as it is bordered by development, the Study Area does not function as a habitat corridor connecting two larger core areas.

While the Study Area as a whole does not function as a landscape level corridor, the stream, which runs within the bounds of the Study Area, connects two ponds and may serve as a small-scale 37 habitat corridor. The stream may allow wildlife to move between these ponds, or into the adjacent undeveloped uplands and wetlands. While this corridor is narrow, regularly maintained for aesthetic purposes by staff, and artificially created for moving water within the golf course, it still serves to link these smaller, potentially core habitats, fulfilling the criteria as a wildlife corridor.

5.0 POTENTIAL IMPACTS AND PROJECT AVOIDANCE AND MINIMIZATION MEASURES

The Project will replace an existing pump station and install a new force main with associated valves and utility vaults. Preliminary cross-section and plan view drawings are provided in Appendix F. The entire force main will be installed by open trench construction. The planned limits of work are shown in relation to biological communities and LCP buffer areas in the Study Area on Figure 3. Figures 4a and 4b display the limits of work in relation to biological communities and PRC buffers required for a Coastal Development Permit exemption. The following sections present potential Project impacts and recommended avoidance and minimization measures to be incorporated into the Project design.

5.1 Biological Communities

Streams, seasonal wetland, emergent wetland, ponds, and central coast riparian scrub communities mapped within the Study Area are located outside of the proposed Limits of Work and will be entirely avoided by the Project. Thus, no direct impacts are anticipated to occur to potential ESHAs or areas subject to the regulatory jurisdiction of the Corps, RWQCB, or CDFW. The Project will pass through several LCP buffer zones around sensitive features; however, the Half Moon Bay LCP permits necessary water supply projects in these zones (Figure 3). The Project has been designed to avoid all PRC buffer zones and will not involve removal of major vegetation, thus the project is anticipated to qualify for a coastal development permit exemption (Figures 4a and 4b).

To avoid indirect impacts to sensitive ESHA communities, the following best management practices are recommended.

 Install temporary silt fencing along the perimeter of work areas adjacent to ESHAs to protect adjacent ESHAs;  Minimize vegetation removal to the extent feasible;  Minimize soil disturbance to the extent feasible when working adjacent to ESHAs; and  Implement best management practices to prevent erosion of soils, runoff, and sedimentation, and to prevent discharge of toxic substances.

5.2 Special-Status Species

Recommended avoidance measures for special-status species are described below.

5.2.1 Special-Status Plant Species

Of the 57 special-status plant species known to occur in the vicinity of the Study Area, seven were determined to have a moderate or high potential to occur in the Study Area: johnny-nip, San Mateo tree lupine, Davidson's bush-mallow, marsh microseris, Choris' popcornflower, Oregon polemonium, and coastal triquetrella. All of these species have potential to occur within the 38 northern coastal scrub habitat found in the greater Study Area, but have no potential to occur within the Limit of Work. Thus, potential impacts to these species will be entirely avoided by the Project and no avoidance or minimization measures are recommended.

5.2.2 Special-Status Wildlife Species

One special-status wildlife species has been observed in the Project Area: Allen’s hummingbird. The Study Area also has potential to support five other special-status bird species including: white- tailed kite, Bryant’s savannah sparrow, grasshopper sparrow, loggerhead shrike, and San Francisco saltmarsh common yellowthroat. In addition, the Study Area has potential to support common nesting birds protected by the MBTA as well as CFGC. Activities that result in the direct removal of active nests or disturbance to nesting birds sufficient to result in the abandonment of active nests would be considered a significant impact under the CEQA as well as a violation of the Migratory Bird Treaty Act and the CFGC. CRLF and SFGS are not likely to occur within the Limits of Work, but measures will be incorporated into the Project design to avoid potential impacts to adjacent habitats where the species may occur.

5.2.2.1 Special-status and Non-special-status Nesting Birds

This assessment determined that five special-status bird species may nest within the Study Area. In addition, common native bird species protected by the MBTA as well as CFGC sections 3503 and 3503.5 may nest within the Study Area. The following avoidance and minimization measures should be incorporated into the Project within the Study Area to avoid impacts to special-status bird species and birds protected under the MBTA or CFGC.

 It is recommended that Project activities occur between September 1 and February 14 in order to avoid potential impacts during the nesting season.

 If Project activities are conducted during the nesting season (February 15 – August 31), a pre-construction nesting bird survey should be performed no more than 14 days prior to initial ground disturbance to avoid impacting active nests.

 If the survey identifies any active nests, an exclusion buffer should be established for protection of the nest. Buffer distances will vary based on species and conditions at the site, but typically range from 25 up to 500 feet. The buffer should be maintained until all young have fledged or until the nest fails, or otherwise becomes inactive.

 Buffers may be reduced from established levels if supported with nest monitoring by a qualified biologist indicating that work activities are not adversely impacting the nest.

5.2.2.2 California Red-legged Frog and San Francisco Garter Snake

CRLF and SFGS both have potential to occur within the Study Area. The Limit of Work (within the Study Area) is located entirely within developed surfaces, and as such does not contain any habitat elements required to support either species, making it unlikely that either species will be present. However, given the close proximity of ponds, streams, and wetlands, both species are likely to be present within portions of the Study Area, outside of the Limit of Work. Measures outlined below are intended to help avoid impacts to dispersing individuals or adjacent habitats where the species may occur. 39  Construction should be limited to the dry season (April 15 to October 31) to avoid impacting CRLF and SFGS when they are most likely to move through developed uplands surrounding the stream or ponds and may be incidentally encountered.

 Plastic monofilament netting (erosion control matting, or wrapping around wattles), or similar material in any form shall not be used on the Project in order to avoid entangling, strangling, or trapping CRLF and SFGS.

 When working within 50 feet of sensitive areas (e.g. adjacent to aquatic habitat), wildlife exclusion fencing should be installed and maintained around the perimeter of work areas. Exclusion fencing should enclose any staged materials, equipment staging areas, work areas or access routes. Fencing should be placed in areas which would prevent SFGS and CRLF from entering equipment or materials overnight. Once work in that area has been completed, exclusion fencing should be removed as soon as possible.

 An approved biologist should conduct an education training for employees working on the Project. Personnel would be required to attend the training which would cover topics such as identification and legal protection of the various species, as well as Project specific avoidance and minimization measures.

 No work should occur within 24 hours of a rain event (over 0.25 inch in a 24-hour period). Following a rain event, a qualified biologist should survey the work area immediately before reinitiating ground disturbance activities to verify CRLF or SFGS are not present. If either species is observed, the animals will be allowed to leave the work are on its own.

 All trash should be deposited in covered or closed trash containers that are removed from the Project site regularly.

 Any vehicles and equipment associated with work-activities should be parked or staged only within developed, or designated staging areas in order to minimize habitat disturbance or water quality degradation.

 Refueling or maintenance of equipment should be conducted at least 50 feet from any wetlands, waters or designated ESHAs. If refueling is required closer to ESHAs (e.g. for stationary equipment), appropriate secondary containment should be used to catch all drips.

 All construction equipment should be maintained to prevent leaks of fuels, lubricants, or other toxic fluids.

 Construction activities should not start until 30 minutes after sunrise, and should cease 30 minutes before sunset.

 Any pipes or culverts that could provide shelter for CRLF or SFGS should be elevated off the ground or have ends covered to prevent animals from climbing into the open-ended materials.

40  No holes or trenches shall be left open overnight. Holes or trenches should have at minimum escape ramps installed, or be backfilled at the end of the day.

5.2.3 Wildlife Corridors

While the Study Area as a whole does not function as a wildlife corridor, the stream which runs within the bounds of the Study Area connecting the two ponds may serve as a small scale habitat corridor, connecting two core habitats (ponds). However, as no work is planned in the stream or ponds, no impacts to wildlife corridors are anticipated.

6.0 SUMMARY AND CONCLUSION

Four sensitive biological communities were identified within the Study Area and outside the proposed Limit of Work: seasonal and emergent wetlands, central coast riparian scrub, and other waters (including streams and ponds). Seven special-status plant species were determined to have moderate or high potential to occur within the Study Area; however, these plant species have no potential to occur in the Limit of Work. One special-status wildlife species is present in the Study Area and five special-status birds have a moderate potential to occur within the Study Area. CRLF and SFGS have potential to occur within the Study Area but are unlikely to occur within the Limit of Work.

The Project has been carefully designed to avoid direct impacts to potential ESHAs, special-status species habitat, or areas subject to the jurisdiction of the Corps, RWQCB, or CDFW. Thus, the Project will not require regulatory approval of the Corps, RWQCB, or CDFW. The Project is anticipated to qualify for CDP exemption because it is a utility maintenance project that does not increase capacity, has been designed to avoid all PRC buffer zones, and does not involve removal of major vegetation. By incorporating the avoidance and minimization measures discussed in Section 5.0 into the Project design, the Project is expected to minimize any potential adverse indirect impacts to sensitive biological communities and avoid direct or indirect impacts to special- status species.

41

7.0 REFERENCES

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[CDFG] California Department of Fish and Game. 1994. A Field Guide to Lake and Streambed Alteration Agreements, Sections 1600-1607, California Fish and Game Code. Sacramento, California

[CDFG] California Department of Fish and Game. 2010. List of Vegetation Alliances and Associations. Vegetation Classification and Mapping Program. Sacramento, CA. September.

[CDFW] California Department of Fish and Wildlife. 2017a. California Natural Diversity Database (CNDDB). California Department of Fish and Wildlife. Biogeographic Data Branch, Vegetation Classification and Mapping Program, Sacramento, CA. Accessed: April 2017.

[CDFW] California Department of Fish and Wildlife. 2017b. Biogeographic Data Branch, Biogeographic Information and Observation System online mapping tool, Sacramento, CA. Accessed: April 2017.

[CNPS] California Native Plant Society. 2017a. A Manual of California Vegetation, Online Edition. California Native Plant Society, Sacramento, CA. Available at: http://www.cnps.org/cnps/vegetation/; accessed: April 2017.

[CNPS] California Native Plant Society. 2017b. Inventory of Rare and Endangered Plants (online edition, v8-02). Sacramento, California. Online at: http://rareplants.cnps.org/; most recently accessed: April 2017.

City of Half Moon Bay. 1993. City of Half Moon Bay Local Coastal Program Land Use Plan. Amended 1993.

[Corps] U.S. Army Corps of Engineers. 2005. Regulatory Guidance Letter No. 05-05, Ordinary High Water Mark Identification. December.

[Corps] U.S. Army Corps of Engineers. 2008a. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region (Version 2.0). September.

[Corps] U.S. Army Corps of Engineers. 2008b. A Field Guide to Identification of the Ordinary High Water Mark (OHWM) in the Arid West Region of the United States. August.

[CSRL] California Soil Resources Lab. 2017. UC Davis Soils Laboratory. Available at: http://casoilresource.lawr.ucdavis.edu/drupal/. Most recently accessed: April 2017.

County of San Mateo. 2013. County of San Mateo Local Coastal Program. Amended through June 2013.

Dunk, JR. 1995. White-tailed Kite (Elanus leucurus), The Birds of North America Online (A Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online: http://bna.birds.cornell.edu/bna/species/178. eBird. 2017. eBird: An online database of bird distribution and abundance. Ithaca, New York. Available: http://www.ebird.org. Accessed: April 2017.

Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual. Department of the Army, Waterways Experiment Station, Vicksburg, Mississippi 39180-0631.

Fellers, G. and P.M. Kleeman. 2007. California red-legged frog (Rana draytonii) movement and habitat use: Implications for conservation. Journal of Herpetology 41(2): 276-286.

Google Earth. 2017. Aerial Imagery 1991-2017. Most recently accessed April 2017.

Holland, R. F. 1986. Preliminary Descriptions of the Terrestrial Natural Communities of California. Prepared for the California Department of Fish and Game, Sacramento, California.

Jepson Flora Project (eds.). 2017. Jepson eFlora. Online at: http://ucjeps.berkeley.edu/IJM.html; most recently accessed: April 2017.

Jepsen, S., D.F. Schweitzer, B. Young, N. Sears, M. Omes, and S. Hoffman Black. 2015. Conservation Status and Ecology of the Monarch Butterfly in the United States. Prepared for the U.S. Forest Service. Xerces Society for Invertebrate Conservation , Portland, OR.

Leong, K.L.H., W.H. Sakai, W. Bremer, D. Feuerstein, and G. Yoshimura. 2004. Analysis of the pattern of distribution and abundance of monarch overwintering sites along the California coastline. Pages 177-185 in The Monarch Butterfly: Biology and Conservation, K. Oberhauser and M. Solensky (eds). Cornell University Press, Ithaca, NY.

Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X.

Mitchell, D. E. 2000. Allen's Hummingbird (Selasphorus sasin). In The Birds of North America, No. 501(A. Poole and F. Gill, eds.). Philadelphia: The Academy of Natural Sciences; Washington, D.C.: The American Ornithologists' Union.

Munsell Color. 2009. Munsell Soil Color Charts. Grand Rapids, MI.

NatureServe. 2017. NatureServe Conservation Status. Available online at: http://www.natureserve.org/explorer/ranking; accessed April 2017.

[NOAA] National Oceanic and Atmospheric Administration. 2017. National Climate Data Center: Climate Data Online. Climate station Half Moon Bay. Available online at: http://www.ncdc.noaa.gov/cdo-web/. Accessed: April 2017.

Opler, PA, K Lotts, and T Naberhaus, coordinators. 2011. Butterflies and Moths of North America. Bozeman, MT: Big Sky Institute. Accessed August 21, 2011.

Rathbun, Galen B., and Julie Schneider. 2001. “Translocation of California Red-Legged Frogs (Rana Aurora Draytonii).” Wildlife Society Bulletin (1973-2006), vol. 29, no. 4, pp. 1300– 1303.

Sakai, W and W Calvert. 1991. Statewide Monarch Butterfly Management Plan for the State of California Department of Parks and Recreation Final Report. Life Sciences Department, Santa Monica College, 1900 Pico Blvd., Santa Monica, CA 90405.

Shuford, W.D. and Gardali, T., eds. 2008. California Bird Species of Special Concern: A ranked assessment of species, subspecies, and distinct populations of birds of immediate conservation concern in California. Studies of Western Birds 1. Western Field Ornithologists, Camarillo, California, and California Department of Fish and Game, Sacramento.

Soulé, M.E. and J. Terbough. 1999. Conserving nature at regional and continental scales - a scientific program for North America. Bioscience 49:809-817.

Stebbins, Robert C., and Samuel M. McGinnis. 2012. Field Guide to Amphibians and Reptiles of California: Revised Edition. University of California Press.

Thomson, Robert C., Amber N. Wright, H. Bradley Shaffer. 2016. California Amphibian and Reptile Species of Special Concern. University of California Press. 408 pages.

[USDA] U.S. Department of Agriculture. 1961. Soil Survey San Mateo Area, California. Series 1954 No 13, Issued May 1961. Accessed online January 2017 at: http://www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/california/CA637/0/sanmateo.pd f

[USDA] United States Department of Agriculture. 2010 Field Indicators of Hydric Soils in the United States: A Guide for Identifying and Delineating Hydric Soils, Version 7.0. Natural Resources Conservation Service. In cooperation with the National Technical Committee for Hydric Soils, Fort Worth, TX.

[USDA] U.S. Department of Agriculture, Natural Resources Conservation Service. 2017. WETS Station Half Moon Bay CA3714, 1971-2000 analysis. http://agacis.rcc- acis.org/06111/wets/results. Most recently accessed: April 2017.

[USFWS] U.S. Fish and Wildlife Service. 2006. San Francisco Garter Snake (Thamnophis sirtalis tetrataenia) 5-Year Review: Summary and Evaluation. Sacramento Fish and Wildlife Office

[USFWS] U.S. Fish and Wildlife Service. 2010. Endangered and Threatened Wildlife and Plants: Revised Designation of Critical Habitat for California Red-legged Frog; Final Rule. Federal Register, Vol. 75, No. 51. 12815-12959.

[USFWS] U.S. Fish and Wildlife Service. 2014. Programmatic Biological Opinion for Issuance of Permits for Projects that May Affect the Threatened California Red-Legged Frog in Nine San Francisco Bay Area Counties, California. Permit Number: FF08ESMF00-2014-F-0389. Sacramento Fish and Wildlife Office.

[USFWS] U.S. Fish and Wildlife Service. 2017a. National Wetlands Inventory website. U.S. Department of the Interior, USFWS, Washington, D.C. http://www.fws.gov/wetlands/Data/Mapper.html. Most recently accessed: April 2017.

[USFWS] U.S. Fish and Wildlife Service. 2017b. IPaC - Information for Planning and Conservation Trust Resource Report. Sacramento Fish and Wildlife Office. Available online: http://ecos.fws.gov/ipac/; most recently accessed April 2017.

[USFWS] U.S. Fish and Wildlife Service. 2017c. ECOS – Environmental Conservation Online System. U.S. FWS Threatened & Endangered Species Active Critical Habitat Report. Sacramento Fish and Wildlife Office. Available onlinehttps://ecos.fws.gov/ecp/report /table/critical-habitat.html; most recently accessed January 2017.

[USFWS] U.S. Fish and Wildlife Service. 2017d. Myrtle's Silverspot Butterfly Species Information. Available Online at: https://www.fws.gov/sacramento/es_species/Accounts/ Invertebrates/es_myrtle-silverspot-butterfly.htm Most recently accessed: January 2017.

[USGS] U.S. Geological Survey. 2017. Half Moon Bay 7.5-minute quadrangle map.

Vickery, Peter D.. (1996). Grasshopper Sparrow (Ammodramus savannarum), The Birds of North America (P. G. Rodewald, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America: https://birdsna.org/Species-Account/bna/species/graspa

[WBWG] Western Bat Working Group. 2017. Species accounts. Prepared by: Betsy C. Bolster. Available online at: http://wbwg.org/western-bat-species/. Accessed April 2017

Zeiner, D. C., W. F. Laudenslayer, Jr., K. E. Mayer, and M. White. 1990. California's Wildlife, Volume I-III: Amphibians and Reptiles, Birds, Mammals. California Statewide Wildlife Habitat Relationships System, California Department of Fish and Game, Sacramento.

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APPENDIX A

LIST OF OBSERVED PLANT AND WILDLIFE SPECIES WITHIN THE STUDY AREA

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Appendix A. Plant and wildlife species observed in the Study Area on April 12, 2017.

Scientific Name Common Name Plants Achillea millefolium Yarrow Arctotheca prostrata Prostrate cape weed Avena barbata Slim oat Avena fatua Wildoats Baccharis pilularis Coyote brush Bellis perennis English lawn daisy Brassica nigra Black mustard Bromus carinatus var. carinatus California brome Bromus diandrus Ripgut brome Carpobrotus edulis Iceplant Cistus sp. Rock rose Conium maculatum Poison hemlock Cotula coronopifolia Brass buttons Cyperus eragrostis Tall cyperus Dietes bicolor Fortnight lily Delairea odorata Cape ivy Echium candicans Pride of madeira Eleocharis macrostachya Spike rush Erodium cicutarium Coastal heron's bill Eucalyptus globulus Blue gum Festuca perennis Italian ryegrass Festuca rubra Creeping red fescue Frangula californica California coffeeberry Galium aparine Cleavers Geranium dissectum Wild geranium Helminthotheca echioides Bristly ox-tongue Hemerocallis fulva Orange day lily Hesperocyparis macrocarpa Monterey cypress Holcus lanatus Common velvetgrass Hordeum murinum Foxtail barley Juncus bufonius Common toad rush Juncus patens Rush Lonicera sp. Honeysuckle

A-1 Scientific Name Common Name Lotus corniculatus Bird's foot trefoil Lysimachia arvensis Scarlet pimpernel Lythrum hyssopifolia Hyssop loosestrife Malva parviflora Cheeseweed Matricaria discoidea Pineapple weed Medicago arabica Spotted burclover Medicago polymorpha California burclover Mentha pulegium Pennyroyal Myoporum laetum Ngaio tree Oxalis pes-caprae Bermuda buttercup Phalaris aquatica Harding grass Pittosporum crassifolium Thick leaf box Plagiobothrys sp. Popcorn flower Plantago coronopus Cut leaf plantain Plantago lanceolata Ribwort Poa annua Annual blue grass Polygonum aviculare Prostrate knotweed Polypogon sp. Rabbits foot grass Polystichum munitum Western sword fern Prunus cerasifera Cherry plum Pseudognaphalium luteoalbum Jersey cudweed Raphanus sativus Jointed charlock Rubus ursinus California blackberry Rumex crispus Curly dock Salix lasiolepis Arroyo willow Salix laevigata Red willow Sambucus racemosa Red elderberry Sanicula crassicaulis Pacific sanicle Scandix pecten-veneris Shepherd's needle Schoenoplectus californicus California bulrush Scrophularia californica California bee plant Solanum aviculare New zealand nightshade Sonchus asper Sow thistle Stellaria media Chickweed Symphyotrichum sp. Aster Trifolium hirtum Rose clover

A-2 Scientific Name Common Name Typha angustifolia Narrow leaf cattail Urtica dioica Stinging nettle Vicia sativa Spring vetch Zantedeschia aethiopica Callalily Wildlife Mammals Odocoileus hemionus columbianus blacktailed deer Birds Selasphorus sasin Allen’s hummingbird Fulica americana American coot Turdus migratorius American robin

Calypte anna Anna’s hummingbird Sayornis nigricans black phoebe Callipepla californica California quail Branta canadensis Canada goose Junco hyemalis dark-eyed junco

Sturnus vulgaris European starling Bubo virginianus great-horned owl Larus sp. gull sp. Anas platyrhynchos mallard Agelaius phoeniceus red-winged blackbird Melospiza melodia song sparrow Zonotrichia leucophrys white-crowned sparrow Setophaga coronata yellow-rumped warbler Amphibians Pseudacris sierra Sierran treefrog

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APPENDIX B

JURISDICTIONAL DELINEATION DATA SHEETS

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WETLAND DETERMINATION DATA FORM – Arid West Region

Project Site: Ocean Colony Force Main Study Area City/County: Half Moon Bay, San Mateo Cty Sampling Date: 4/12/17 Applicant/Owner: Unavailable State: California Sampling Point: SP1 Investigator(s): Ellie Knecht Section/Township/Range: Sec 5, T6S, R5W Landform (hillslope, terrace, etc.): Depression Local Relief (concave, convex, none): Concave Slope (%): 0-1% Subregion (LRR): LRR C (Medit CA) Lat: 37°26'25.18"N Long: 122°26'11.81"W Datum: NAD83 Soil Map Unit Name: Colma sandy loam, moderately steep, eroded NWI classification None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are Vegetation Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.

Hydrophytic Vegetation Present? Yes X No Is the Sampled Area Hydric Soil Present? Yes X No Yes X No within a Wetland? Wetland Hydrology Present? Yes X No

Remarks: SP1 is located within a wetland just north of Redondo Beach Road and is paired with upland point SP2. The sample point is located within a wetland depression and was inundated during the site visit. The wetland boundary was determined based on subtle change in grade and a shift to Baccharis pilularis and Eucalyptus glogulus. SP1 meets wetland criteria for hydrophytic vegetation, soils, and hydrology. The sample point was taken within 4 hours of the last rain event. The three months preceeding the site visit are wetter than typical years.

VEGETATION Absolute Dominant Indicator Dominance Test worksheet: Tree Stratum (Plot size: N/A) Cover % Species? Status Number of Dominant Species 1. That Are OBL, FACW, or FAC: 1 (A)

2. Total Number of Dominant 3. Species Across All Strata: 1 (B)

4. Percent of Dominant Species Total Cover: That Are OBL, FACW, or FAC: 100 (A/B) Sapling/Shrub Stratum (Plot size: N/A) 1. Prevalence Index worksheet: 2. Total % Cover of: Multiply by: 3. OBL species 4 x 1 = 4 4. FACW species 10 x 2 = 20 5. FAC species 49 x 3 = 147 Total Cover: FACU species x 4 = Herb Stratum (Plot size: 5’ radius) UPL Species x 5 = 1. Rubus ursinus 45 Yes FAC Column totals 63 (A) 171 (B) 2. Juncus patens 10 No FACW 3. Rumex crispus 4 No FAC Prevalence Index = B/A = 2.7

4. Mentha pulegium 4 No OBL Hydrophytic Vegetation Indicators: 5. X Dominance Test is >50% 6. X Prevalence Index is ≤3.01 7. Morphological Adaptations1 (Provide supporting 8. data in Remarks or on a separate sheet) Total Cover: 63 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: N/A) 1 Indicators of hydric soil and wetland hydrology must be 1. present. 2. Hydrophytic Total Cover: Vegetation Yes X No Present? % Bare Ground in Herb Stratum 37 % Cover of Biotic Crust

Remarks: SP1 meets wetland criteria for hydrophytic vegetation. The southern portion of this feature is dominated by Rubus ursinus while the northern portion of this feature is dominated by Mentha pulegium and Eleocharis macrostachya.

US Army Corps of Engineers Arid West – Version 2.0 SOIL Sampling Point: SP1

Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks 0-12” 7.5 YR 2.5/1 100 - - - - Clay loam

1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C) Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6) Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) X Thick Dark Surface (A12) Redox Depressions (F8) Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or Sandy Gleyed Matrix (S4) problematic. Restrictive Layer (If present): Type: Depth (inches): Hydric Soil Present? Yes X No Remarks: While no hydric soil indicators were observed in the sample point, the thick dark surface indicator (A12) was assumed to be present based on the presence of hydrophytic vegetation, observed hydrology, and landscape position.

HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) X Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) X High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) X Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations: Surface Water Present? Yes X No Depth (inches): 2-3” Water Table Present? Yes X No Depth (inches): 0 Saturation Present? Yes X No Depth (inches): 0 Wetland Hydrology Present? Yes X No (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:

Remarks: SP1 meets wetland hydrology criteria. Approximately 2 to 3 inches of standing water was observed in some areas of the plot and soils were saturated to the surface.

US Army Corps of Engineers Arid West – Version 2.0 WETLAND DETERMINATION DATA FORM – Arid West Region

Project Site: Ocean Colony Force Main Study Area City/County: Half Moon Bay, San Mateo Cty Sampling Date: 4/12/17 Applicant/Owner: Unavailable State: California Sampling Point: SP2 Investigator(s): Ellie Knecht Section/Township/Range: Sec 5, T6S, R5W Landform (hillslope, terrace, etc.): Slight slope Local Relief (concave, convex, none): Concave Slope (%): 2-3% Subregion (LRR): LRR C (Medit CA) Lat: 37°26'25.18"N Long: 122°26'11.81"W Datum: NAD83 Soil Map Unit Name: Colma sandy loam, moderately steep, eroded NWI classification None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are Vegetation Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.

Hydrophytic Vegetation Present? Yes No X Is the Sampled Area Hydric Soil Present? Yes No X Yes No X within a Wetland? Wetland Hydrology Present? Yes No X

Remarks: SP2 is located north of Redondo Beach Road and is paired with SP1. The sample point is located adjacent to and outside of a wetland depression. SP2 does not meet wetland criteria for vegetation, soils, or hydrology. The sample point was taken within 4 hours of the last rain event. The three months preceeding the site visit are wetter than typical years.

VEGETATION Absolute Dominant Indicator Dominance Test worksheet: Tree Stratum (Plot size: N/A) Cover % Species? Status Number of Dominant Species 1. Eucalyptus globulus 20 Yes NL That Are OBL, FACW, or FAC: 0 (A)

2. Total Number of Dominant 3. Species Across All Strata: 4 (B)

4. Percent of Dominant Species Total Cover: 20 That Are OBL, FACW, or FAC: 0 (A/B) Sapling/Shrub Stratum (Plot size: N/A) 1. Baccharis pilularis 10 Yes NL Prevalence Index worksheet: 2. Total % Cover of: Multiply by: 3. OBL species x 1 = 4. FACW species x 2 = 5. FAC species 10 x 3 = 30 Total Cover: 10 FACU species x 4 = Herb Stratum (Plot size: 5’ radius) UPL Species 90 x 5 = 450 1. Bromus diandrus 30 Yes NL Column totals 100 (A) 480 (B) 2. Avena barbata 20 Yes NL 3. Rubus ursinus 10 No FAC Prevalence Index = B/A = 4.8

4. Geranium dissectum 10 No NL Hydrophytic Vegetation Indicators: 5. Dominance Test is >50% 6. Prevalence Index is ≤3.01 7. Morphological Adaptations1 (Provide supporting 8. data in Remarks or on a separate sheet) Total Cover: 70 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: N/A) 1 Indicators of hydric soil and wetland hydrology must be 1. present. 2. Hydrophytic Total Cover: Vegetation Yes No X Present? % Bare Ground in Herb Stratum 30 % Cover of Biotic Crust

Remarks: SP2 is dominated by upland species and does not meet wetland criteria for hydrophytic vegetation.

US Army Corps of Engineers Arid West – Version 2.0 SOIL Sampling Point: SP2

Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks 0-6” 7.5 YR 4/2 80 - - - - Clay loam Trace sand 0-6” 7.5 YR 2.5/1 20 - - - - Clay loam Trace sand

1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C) Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6) Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8) Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or Sandy Gleyed Matrix (S4) problematic. Restrictive Layer (If present): Type: Depth (inches): Hydric Soil Present? Yes No X Remarks:SP2 does not meet wetland criteria for hydric soils.

HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations: Surface Water Present? Yes No X Depth (inches): Water Table Present? Yes No X Depth (inches): Saturation Present? Yes No X Depth (inches): Wetland Hydrology Present? Yes No X (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:

Remarks: SP2 does not meet wetland hydrology criteria.

US Army Corps of Engineers Arid West – Version 2.0 WETLAND DETERMINATION DATA FORM – Arid West Region

Project Site: Ocean Colony Force Main Study Area City/County: Half Moon Bay, San Mateo Cty Sampling Date: 4/12/17 Applicant/Owner: Unavailable State: California Sampling Point: SP3 Investigator(s): Ellie Knecht Section/Township/Range: Sec 5, T6S, R5W Landform (hillslope, terrace, etc.): Terrace Local Relief (concave, convex, none): None Slope (%): 0 Subregion (LRR): LRR C (Medit CA) Lat: 37°26'18.24"N Long: 122°26'15.44"W Datum: NAD83 Soil Map Unit Name: Watsonville loam, gently sloping, eroded NWI classification None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are Vegetation Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.

Hydrophytic Vegetation Present? Yes X No Is the Sampled Area Hydric Soil Present? Yes No X Yes No X within a Wetland? Wetland Hydrology Present? Yes X No

Remarks: SP3 is located south of Redondo Beach Road in a willow thicket above a stream feature. SP3 is paired with SP4, which occurs in the adjacent grassland/scrub community. SP3 meets wetland criteria for hydrophytic vegetation and hydrology, but does not meet wetland criteria for hydric soils. The sample point was taken within 4 hours of the last rain event. The three months preceeding the site visit are wetter than typical years.

VEGETATION Absolute Dominant Indicator Dominance Test worksheet: Tree Stratum (Plot size: N/A) Cover % Species? Status Number of Dominant Species 1. That Are OBL, FACW, or FAC: 2 (A)

2. Total Number of Dominant 3. Species Across All Strata: 2 (B)

4. Percent of Dominant Species Total Cover: That Are OBL, FACW, or FAC: 100 (A/B) Sapling/Shrub Stratum (Plot size: N/A) 1. Salix lasiolepis 75 Yes FACW Prevalence Index worksheet: 2. Total % Cover of: Multiply by: 3. OBL species x 1 = 4. FACW species 75 x 2 = 150 5. FAC species 85 x 3 = 255 Total Cover: 75 FACU species x 4 = Herb Stratum (Plot size: 5’ radius) UPL Species x 5 = 1. Rubus ursinus 85 Yes FAC Column totals 160 (A) 405 (B) 2. Galium aparine 2 No FACU 3. Prevalence Index = B/A = 2.5

4. Hydrophytic Vegetation Indicators: 5. X Dominance Test is >50% 6. X Prevalence Index is ≤3.01 7. Morphological Adaptations1 (Provide supporting 8. data in Remarks or on a separate sheet) Total Cover: 87 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: N/A) 1 Indicators of hydric soil and wetland hydrology must be 1. present. 2. Hydrophytic Total Cover: Vegetation Yes X No Present? % Bare Ground in Herb Stratum 13 % Cover of Biotic Crust

Remarks: SP3 is dominated by FAC and FACW species and thus meets wetland criteria for hydrophytic vegetation.

US Army Corps of Engineers Arid West – Version 2.0 SOIL Sampling Point: SP3

Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks 0-12” 7.5 YR 2.5/1 100 - - - - Clay loam

1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C) Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6) Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8) Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or Sandy Gleyed Matrix (S4) problematic. Restrictive Layer (If present): Type: Depth (inches): Hydric Soil Present? Yes No X Remarks: No indicators of wetland hydrology were observed in the test pit. In contrast to SP1 (where hydric soils were inferred), hydric soils are not inferred at SP3 primarily due to landscape position. SP3 is located in a terrace above a stream feature that is unlikely to collect or pond water. Furthermore, the soils in the paired upland sample point (SP4) are comparable to the soils at SP3. HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) X High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) X Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations: Surface Water Present? Yes No Depth (inches): Water Table Present? Yes X No Depth (inches): 6” Saturation Present? Yes X No Depth (inches): 0” Wetland Hydrology Present? Yes X No (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:

Remarks: SP3 meets wetland criteria for hydrology because of a high water table and soils were saturated to the surface. However, saturation and a high water table were also observed in the paired upland sample point (SP4). Thus, saturation and presence of a high water table may be the result of recent rain and a wetter than normal preceding 3-month period, as opposed to indicators of wetland hydrology.

US Army Corps of Engineers Arid West – Version 2.0 WETLAND DETERMINATION DATA FORM – Arid West Region

Project Site: Ocean Colony Force Main Study Area City/County: Half Moon Bay, San Mateo Cty Sampling Date: 4/12/17 Applicant/Owner: Unavailable State: California Sampling Point: SP4 Investigator(s): Ellie Knecht Section/Township/Range: Sec 5, T6S, R5W Landform (hillslope, terrace, etc.): hillslope Local Relief (concave, convex, none): Concave Slope (%): 1-2% Subregion (LRR): LRR C (Medit CA) Lat: 37°26'18.24"N Long: 122°26'15.44"W Datum: NAD83 Soil Map Unit Name: Watsonville loam, gently sloping, eroded NWI classification None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are Vegetation Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.

Hydrophytic Vegetation Present? Yes No X Is the Sampled Area Hydric Soil Present? Yes No X Yes No X within a Wetland? Wetland Hydrology Present? Yes X No

Remarks: SP4 is located south of Redondo Beach Road in an upland area adjacent to a willow thicket. SP4 is paired with SP3. SP 4 meets wetland crtieria for hydrology but does not meet wetland criteria for hydrophytic vegetation or soils, and thus is not a wetland. The sample point was taken within 4 hours of the last rain event. The three months preceeding the site visit are wetter than typical years.

VEGETATION Absolute Dominant Indicator Dominance Test worksheet: Tree Stratum (Plot size: N/A) Cover % Species? Status Number of Dominant Species 1. That Are OBL, FACW, or FAC: 0 (A)

2. Total Number of Dominant 3. Species Across All Strata: 1 (B)

4. Percent of Dominant Species Total Cover: That Are OBL, FACW, or FAC: 0 (A/B) Sapling/Shrub Stratum (Plot size: N/A) 1. Prevalence Index worksheet: 2. Total % Cover of: Multiply by: 3. OBL species x 1 = 4. FACW species x 2 = 5. FAC species x 3 = Total Cover: FACU species 15 x 4 = 60 Herb Stratum (Plot size: 5’ radius) UPL Species 75 x 5 = 375 1. Avena barbata 75 Yes NL Column totals 90 (A) 435 (B) 2. Phalaris aquatica 15 No FACU 3. Prevalence Index = B/A = 4.8

4. Hydrophytic Vegetation Indicators: 5. Dominance Test is >50% 6. Prevalence Index is ≤3.01 7. Morphological Adaptations1 (Provide supporting 8. data in Remarks or on a separate sheet) Total Cover: 90 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: N/A) 1 Indicators of hydric soil and wetland hydrology must be 1. present. 2. Hydrophytic Total Cover: Vegetation Yes No X Present? % Bare Ground in Herb Stratum 10 % Cover of Biotic Crust

Remarks: SP4 does not meet wetland criteria for hydrophytic vegetation.

US Army Corps of Engineers Arid West – Version 2.0 SOIL Sampling Point: SP4

Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks 0-12” 7.5 YR 2.5/1 100 - - - - Clay loam

1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C) Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6) Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8) Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or Sandy Gleyed Matrix (S4) problematic. Restrictive Layer (If present): Type: Depth (inches): Hydric Soil Present? Yes No X Remarks: SP4 does not meet wetland criteria for hydric soils.

HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) X High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) X Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations: Surface Water Present? Yes No Depth (inches): Water Table Present? Yes X No Depth (inches): 6” Saturation Present? Yes X No Depth (inches): 0” Wetland Hydrology Present? Yes X No (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:

Remarks: SP4 meets wetland criteria for hydrology because of a high water table and soils were saturated to the surface. However, saturation and presence of a high water table may be the result of recent rain and a wetter than normal preceding 3-month period, as opposed to indicators of wetland hydrology.

US Army Corps of Engineers Arid West – Version 2.0 WETLAND DETERMINATION DATA FORM – Arid West Region

Project Site: Ocean Colony Force Main Study Area City/County: Half Moon Bay, San Mateo Cty Sampling Date: 4/12/17 Applicant/Owner: Ocean Colony Partnes, LLC State: California Sampling Point: SP5 Investigator(s): Ellie Knecht Section/Township/Range: Sec 5, T6S, R5W Landform (hillslope, terrace, etc.): Local Relief (concave, convex, none): Slope (%): Subregion (LRR): LRR C (Medit CA) Lat: 37°26'10.47"N Long: 122°26'25.23"W Datum: NAD83 Soil Map Unit Name: Mixed alluvial land NWI classification Freshwater Pond Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are Vegetation Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.

Hydrophytic Vegetation Present? Yes X No Is the Sampled Area Hydric Soil Present? Yes X No Yes X No within a Wetland? Wetland Hydrology Present? Yes X No

Remarks: SP5 is located in a cattail-dominated wetland adjacent to the active play area of the golf course. SP5 meets wetland criteria for hydrophytic vegetation, hydric soils, and hydrology. The edge of the wetland was mapped based on a stark change in grade and a transition to upland grasses. The sample point was taken within 4 hours of the last rain event. The three months preceeding the site visit are wetter than typical years.

VEGETATION Absolute Dominant Indicator Dominance Test worksheet: Tree Stratum (Plot size: N/A) Cover % Species? Status Number of Dominant Species 1. That Are OBL, FACW, or FAC: 1 (A)

2. Total Number of Dominant 3. Species Across All Strata: 1 (B)

4. Percent of Dominant Species Total Cover: That Are OBL, FACW, or FAC: 100 (A/B) Sapling/Shrub Stratum (Plot size: N/A) 1. Prevalence Index worksheet: 2. Total % Cover of: Multiply by: 3. OBL species 100 x 1 = 100 4. FACW species x 2 = 5. FAC species x 3 = Total Cover: FACU species x 4 = Herb Stratum (Plot size: 5’ radius) UPL Species x 5 = 1. Typha angustifolia 90 Yes OBL Column totals 100 (A) 100 (B) 2. Schoenoplectus californicus 10 No OBL 3. Prevalence Index = B/A = 1.0

4. Hydrophytic Vegetation Indicators: 5. X Dominance Test is >50% 6. X Prevalence Index is ≤3.01 7. Morphological Adaptations1 (Provide supporting 8. data in Remarks or on a separate sheet) Total Cover: 100 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: N/A) 1 Indicators of hydric soil and wetland hydrology must be 1. present. 2. Hydrophytic Total Cover: Vegetation Yes X No Present? % Bare Ground in Herb Stratum 0 % Cover of Biotic Crust

Remarks: SP5 is dominated by OBL species and thus meets wetland criteria for hydrophytic vegetation.

US Army Corps of Engineers Arid West – Version 2.0 SOIL Sampling Point: SP5

Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks 0-6” 7.5 YR 2.5/1 100 - - - - Clay loam Met restriction due to roots at 6” muck

1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C) Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6) Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) X Thick Dark Surface (A12) Redox Depressions (F8) Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or Sandy Gleyed Matrix (S4) problematic. Restrictive Layer (If present): Type: Depth (inches): Hydric Soil Present? Yes X No Remarks: While no hydric soil indicators were observed in the sample point, the thick dark surface indicator (A12) was assumed to be present based on the presence of hydrophytic vegetation (all OBL species), observed hydrology, and landscape position.

HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) X Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) X High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) X Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations: Surface Water Present? Yes X No Depth (inches): 2-3” Water Table Present? Yes X No Depth (inches): 0” Saturation Present? Yes X No Depth (inches): 0” Wetland Hydrology Present? Yes X No (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:

Remarks: SP5 meets the criteria for wetland hydrology.

US Army Corps of Engineers Arid West – Version 2.0

APPENDIX C

PRELIMINARY JURISDICTIONAL DETERMINATION MAP

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Potential Section 404 Jurisdiction Project Area Acres 200-ft. Buffer Acres Project Area Linear Feet 200-ft. Buffer Linear Feet Intermittent Stream 0.00 0.04 31 447 Perennial Stream 0.02 0.10 88 536 Waters 1.00 NA NA Seasonal Wetland 0.21 NA NA Emergent Wetland 0.44 NA NA sp1 Potential Section 401 and CCC/LCP Jurisdiction Intermittent Stream 0.01 0.09 31 447 sp2 Ocean Colony Pump Perennial Stream 0.03 0.15 88 536 Waters 1.00 NA NA Station and Force Seasonal Wetland 0.21 NA NA Main Project Emergent Wetland 0.44 NA NA San Mateo County, Central Coast Riparian Scrub 0.29 NA NA Potential Section 1602 Jurisdiction California Intermittent Stream 0.01 0.09 31 447 Perennial Stream 0.03 0.15 88 536 Emergent Wetland 0.44 NA NA Waters 1.00 NA NA Central Coast Riparian Scrub 0.29 NA NA

sp4 sp3 Appendix C. Delineation Map Project Area (5.74 ac.)

200-ft. Buffer (26.45 ac.)

Sample Point

Jurisdictional Features within the Project Area

Intermittent Stream (OHWM)

Perennial Stream (OHWM)

Intermittent Stream (TOB)

Perennial Stream (TOB)

Jurisdictional Features within the 200-foot Buffer

Intermittent Stream (TOB)

Perennial Stream (TOB)

sp5 Intermittent Stream (OHWM)

Perennial Stream (OHWM)

Central Coast Riparian Scrub

0 100 200 300 Ponds

Feet Emergent Wetland Map Prepared Date: 3/1/2018 Seasonal Wetland Map Prepared By: czumwalt Base Source: Esri Streaming - NAIP 2014 Data Source(s): WRA Path: L:\Acad 2000 Files\26000\26325\GIS\ArcMap\March 2018\Delineation 20170516.mxd This page intentionally blank.

APPENDIX D

POTENTIAL FOR SPECIAL-STATUS PLANT AND WILDLIFE SPECIES TO OCCUR IN THE STUDY AREA

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Appendix D. Potential for special-status plant and wildlife species to occur in the Study Area. List compiled from the California Department of Fish and Wildlife (CDFW) Natural Diversity Database (CDFW 2017), U.S. Fish and Wildlife Service (USFWS) Species Lists (USFWS 2017), and California Native Plant Society (CNPS) Electronic Inventory (CNPS 2017) searches of the Half Moon Bay, Montara Mountain, Woodside, and San Gregorio USGS 7.5' quadrangles and a review of other CDFW lists and publications (Jennings and Hayes 1994, Zeiner et al. 1990).

POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

Plants

San Mateo thorn-mint FE, SE, Chaparral, valley and foothill Unlikely. The Study Area does No mitigation measures are Acanthomintha Rank 1B.1 grassland/serpentine. Elevation not contain suitable habitat such recommended. duttonii ranges from 160 to 980 feet (50 to as chaparral, valley or foothill 300 meters). Blooms Apr-Jun. grassland, or serpentine substrate. Therefore, the Study Area is unlikely to support this species.

Blasdale's bent grass Rank 1B.2 Coastal bluff scrub, coastal dunes, Unlikely. The Study Area does No mitigation measures are Agrostis blasdalei coastal prairie. Elevation ranges not contain suitable habitat such recommended. from 20 to 490 feet (5 to 150 as coastal bluff scrub, coastal meters). Blooms May-Jul. dunes, or coastal prairie. Therefore, the Study Area is unlikely to support this species.

Franciscan onion Rank 1B.2 Cismontane woodland, valley and Unlikely. The Study Area does No mitigation measures are Allium peninsulare foothill grassland/clay, volcanic, not contain suitable habitat such recommended. var. franciscanum often serpentine. Elevation ranges as cismontane woodland or valley from 170 to 980 feet (52 to 300 and foothill grassland, and does meters). Blooms (Apr), May-Jun. not contain volcanic or serpentine substrates. Therefore, the Study Area is unlikely to support this species.

D-1 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** bent-flowered Rank 1B.2 Coastal bluff scrub, cismontane Unlikely. The Study Area does No mitigation measures are fiddleneck woodland, valley and foothill not contain suitable habitat such recommended. Amsinckia lunaris grassland. Elevation ranges from 10 as cismontane woodland or valley to 1640 feet (3 to 500 meters). and foothill grassland. Blooms Mar-Jun. Furthermore, this species often occurs on gravelly slopes and serpentine substrate which is not found in the Study Area. Therefore, the Study Area is unlikely to support this species. coast rockcress Rank 4.3 Broadleafed upland forest, coastal Unlikely. The Study Area does No mitigation measures are Arabis blepharophylla bluff scrub, coastal prairie, coastal not contain suitable habitats with recommended. scrub/rocky. Elevation ranges from rocky substrates. Therefore, the 10 to 3610 feet (3 to 1100 meters). Study Area is unlikely to support Blooms Feb-May. this species.

Anderson's manzanita Rank 1B.2 Broadleafed upland forest, chaparral, Unlikely. The Study Area does No mitigation measures are Arctostaphylos north coast coniferous not contain suitable habitat such recommended. andersonii forest/openings, edges. Elevation as broadleafed upland forest, ranges from 200 to 2490 feet (60 to chaparral, or north coast 760 meters). Blooms Nov-May. coniferous forest. Therefore, the Study Area is unlikely to support this species.

Montara manzanita Rank 1B.2 Chaparral (maritime), coastal scrub. Unlikely. While this species is No mitigation measures are Arctostaphylos Elevation ranges from 260 to 1640 known to occur in coastal scrub recommended. montaraensis feet (80 to 500 meters). Blooms habitat, this species is a woody Jan-Mar. perennial and was not observed during the site visit.

D-2 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

Kings Mountain Rank 1B.2 Broadleafed upland forest, chaparral, No Potential. The Study Area No mitigation measures are manzanita north coast coniferous forest/granitic does not contain suitable habitat recommended. Arctostaphylos or sandstone. Elevation ranges from such as broadleafed upland forest, regismontana 1000 to 2400 feet (305 to 730 chaparral, north coast coniferous meters). Blooms Jan-Apr. forest or granitic or sandstone substrate. Additionally, this species is a woody perennial and was not observed during the site visit. ocean bluff milk-vetch Rank 4.2 Coastal bluff scrub, coastal dunes. Unlikely. This species occurs on No mitigation measures are Astragalus nuttallii Elevation ranges from 10 to 390 feet rocky, sandy, coastal bluff habitat recommended. var. nuttallii (3 to 120 meters). Blooms Jan-Nov. which is not found within the Study Area. Therefore, the Study Area is unlikely to support this species. coastal marsh milk- Rank 1B.2 Coastal dunes (mesic), coastal Unlikely. This species occurs in No mitigation measures are vetch scrub, marshes and swamps dunes or coastal salt marsh which recommended. Astragalus (coastal salt, streamsides). was not found within the Study pycnostachyus var. Elevation ranges from 0 to 100 feet Area. While this species is found pycnostachyus (0 to 30 meters). Blooms Apr-Oct. along streamsides, the stream banks within the Study Area were largely dominated by blue gum eucalyptus, California blackberry, and arroyo willow and are thus unlikely to support this species.

Brewer's calandrinia Rank 4.2 Chaparral, coastal scrub/sandy or Unlikely. The Study Area No mitigation measures are Calandrinia breweri loamy, disturbed sites and burns. contains coastal scrub which may recommended. Elevation ranges from 30 to 4000 support this species; however, this feet (10 to 1220 meters). Blooms species is most often found (Jan), Mar-Jun. following a fire. As there is no evidence of recent fire in the Study Area, this species is unlikely to occur in the Study Area.

D-3 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** round-leaved filaree Rank 1B.2 Cismontane woodland, valley and Unlikely. The Study Area does No mitigation measures are California macrophylla foothill grassland/clay. Elevation not contain suitable habitat such recommended. ranges from 50 to 3940 feet (15 to as cismontane woodland or valley 1200 meters). Blooms Mar-May. and foothill grassland. Therefore, the Study Area is unlikely to support this species.

Oakland star-tulip Rank 4.2 Broadleafed upland forest, chaparral, Unlikely. The Study Area does No mitigation measures are Calochortus cismontane woodland, lower not contain suitable habitat such recommended. umbellatus montane coniferous forest, valley as broadleafed upland forest, and foothill grassland/often chaparral, cismontane woodland, serpentine. Elevation ranges from lower montane coniferous forest, 330 to 2300 feet (100 to 700 or valley or foothill grassland. meters). Blooms Mar-May. Therefore, the Study Area is unlikely to support this species. johnny-nip Rank 4.2 Coastal bluff scrub, coastal prairie, Moderate. Coastal scrub habitat Although there is potential for Castilleja ambigua coastal scrub, marshes and swamps, within the Study Area may support this species to occur within the var. ambigua valley and foothill grassland, vernal this species. Limited occurrence greater Study Area, this species poolsmargins. Elevation ranges information has been documented has no potential to occur within from 0 to 1430 feet (0 to 435 for this species and the closest the Limit of Work. No further meters). Blooms Mar-Aug. occurrence was seen at Moss mitigation measures are Beach in 1905. However, the Limit recommended. of Work is composed of developed or disturbed areas and has no potential to support this species. pappose tarplant Rank 1B.2 Chaparral, coastal prairie, meadows Unlikely. The Study Area does No mitigation measures are Centromadia parryi and seeps, marshes and swamps not contain suitable habitat such recommended. ssp. parryi (coastal salt), valley and foothill as chaparral, coastal prairie, grassland (vernally mesic)/often meadows and seeps, coastal salt alkaline. Elevation ranges from 0 to marsh, or valley and foothill 1380 feet (0 to 420 meters). Blooms grassland. Therefore, the Study May-Nov. Area is unlikely to support this species.

D-4 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

San Francisco Bay Rank 1B.2 Coastal bluff scrub, coastal dunes, Unlikely. The Study Area does No mitigation measures are spineflower coastal prairie, coastal scrub/sandy. not contain sandy substrate recommended. Chorizanthe Elevation ranges from 10 to 710 feet suitable to support this species. cuspidata var. (3 to 215 meters). Blooms Apr-Jul Therefore, this species is unlikely cuspidata (Aug). to occur in the Study Area.

Franciscan thistle Rank 1B.2 Broadleafed upland forest, coastal Unlikely. The Study Area does No mitigation measures are Cirsium andrewsii bluff scrub, coastal prairie, coastal not contain suitable habitat such recommended. scrub/mesic, sometimes serpentine. as serpentine substrates. Elevation ranges from 0 to 490 feet Therefore, the Study Area is (0 to 150 meters). Blooms Mar-Jul. unlikely to support this species.

Crystal Springs FE, SE, Chaparral (openings), cismontane Unlikely. The Study Area does No mitigation measures are fountain thistle Rank 1B.1 woodland, meadows and seeps, not contain chaparral, cismontane recommended. Cirsium fontinale valley and foothill woodland, meadows and seeps, var. fontinale grassland/serpentine seeps. valley of foothill grassland, or Elevation ranges from 150 to 570 serpentine seeps suitable to feet (45 to 175 meters). Blooms support this species. Therefore, (Apr), May-Oct. the Study Area is unlikely to support this species.

San Francisco Rank 1B.2 Closed-cone coniferous forest, Unlikely. The Study Area does No mitigation measures are collinsia coastal scrub/sometimes serpentine. not contain serpentine or shale recommended. Collinsia multicolor Elevation ranges from 100 to 820 substrates. Therefore, the Study feet (30 to 250 meters). Blooms Area is unlikely to support this (Feb), Mar-May. species. clustered lady's- Rank 4.2 Lower montane coniferous forest, Unlikely. The Study Area does No mitigation measures are slipper north coast coniferous forest/usually not contain suitable habitat such recommended. Cypripedium serpentine seeps and streambanks. as lower montane coniferous fasciculatum Elevation ranges from 330 to 7990 forest, north coast coniferous feet (100 to 2435 meters). Blooms forest, and does not contain Mar-Aug. serpentine seeps. Therefore, the Study Area is unlikely to support this species.

D-5 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** western leatherwood Rank 1B.2 Broadleafed upland forest, closed- Unlikely. The Study Area does No mitigation measures are Dirca occidentalis cone coniferous forest, chaparral, not contain broadleafed upland recommended. cismontane woodland, north coast forest, closed-cone coniferous coniferous forest, riparian forest, forest, chaparral, cismontane riparian woodland/mesic. Elevation woodland, north coast coniferous ranges from 80 to 1390 feet (25 to forest, or riparian woodland 425 meters). Blooms Jan-Mar (Apr). communities. Therefore, the Study Area is unlikely to support this species.

California bottle-brush Rank 4.3 Broadleafed upland forest, Unlikely. The Study Area does No mitigation measures are grass cismontane woodland, north coast not contain suitable habitat such recommended. Elymus californicus coniferous forest, riparian woodland. as broadleafed upland forest, Elevation ranges from 50 to 1540 cismontane woodland, north coast feet (15 to 470 meters). Blooms coniferous forest, or riparian May-Aug (Nov). woodland communities. Therefore, the Study Area is unlikely to support this species.

San Mateo woolly FE, SE, Cismontane woodland (often Unlikely. The Study Area does No mitigation measures are sunflower Rank 1B.1 serpentine, on roadcuts). Elevation not contain suitable habitat such recommended. Eriophyllum latilobum ranges from 150 to 490 feet (45 to as cismontane woodland and 150 meters). Blooms May-Jun. does not contain serpentine substrate. Therefore, the Study Area is unlikely to support this species.

San Francisco Rank 4.2 Chaparral, coastal dunes, coastal Unlikely. The Study Area does No mitigation measures are wallflower scrub, valley and foothill not contain serpentine or granitic recommended. Erysimum grassland/often serpentine or substrate to support this species. franciscanum granitic, sometimes roadsides. Therefore, the Study Area is Elevation ranges from 0 to 1800 feet unlikely to support this species. (0 to 550 meters). Blooms Mar-Jun.

D-6 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

Hillsborough Rank 1B.1 Cismontane woodland, valley and Unlikely. The Study Area does No mitigation measures are chocolate lily foothill grassland/serpentine. not contain suitable habitat such recommended. Fritillaria biflora Elevation ranges from 490 to 490 as cismontane woodland or valley var. ineziana feet (150 to 150 meters). Blooms or foothill grassland communities Mar-Apr. and does not contain serpentine substrate. Therefore, the Study Area is unlikely to support this species.

Marin checker lily Rank 1B.1 Coastal bluff scrub, coastal prairie, Unlikely. While the Study Area No mitigation measures are Fritillaria lanceolata coastal scrub. Elevation ranges from contains coastal scrub which may recommended. var. tristulis 50 to 490 feet (15 to 150 meters). be considered suitable habitat for Blooms Feb-May. this species, the nearest documented occurrence is from 1963 and is located 33 miles from the Study Area is Stinson Beach. Therefore, the Study Area is unlikely to support this species. fragrant fritillary Rank 1B.2 Cismontane woodland, coastal Unlikely. The Study Area does No mitigation measures are Fritillaria liliacea prairie, coastal scrub, valley and not contain suitable serpentine recommended. foothill grassland/often serpentine. substrate. Therefore, the Study Elevation ranges from 10 to 1350 Area is unlikely to support this feet (3 to 410 meters). Blooms Feb- species. Apr.

San Francisco Rank 3.2 Coastal bluff scrub, coastal scrub, Unlikely. The Study Area does No mitigation measures are gumplant valley and foothill grassland/sandy or not contain sandy or serpentine recommended. Grindelia hirsutula serpentine. Elevation ranges from substrate suitable to support this var. maritima 50 to 1310 feet (15 to 400 meters). species. Therefore, this species is Blooms Jun-Sep. unlikely to occur within the Study Area.

D-7 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** short-leaved evax Rank 1B.2 Coastal bluff scrub (sandy), coastal Unlikely. The Study Area does No mitigation measures are Hesperevax dunes, coastal prairie. Elevation not contain sandy substrate recommended. sparsiflora var. ranges from 0 to 710 feet (0 to 215 suitable to support this species. brevifolia meters). Blooms Mar-Jun. Therefore, this species is unlikely to occur within the Study Area.

Marin western flax FT, ST, Chaparral, valley and foothill Unlikely. The Study Area does No mitigation measures are Hesperolinon Rank 1B.1 grassland/serpentine. Elevation not contain suitable habitat to recommended. congestum ranges from 20 to 1210 feet (5 to support this species such as 370 meters). Blooms Apr-Jul. chaparral, valley or foothill grassland, or serpentine substrate. Therefore, this species is unlikely to occur within the Study Area.

Kellogg's horkelia Rank 1B.1 Closed-cone coniferous forest, Unlikely. The Study Area does No mitigation measures are Horkelia cuneata chaparral (maritime), coastal dunes, not contain sandy substrate recommended. var. sericea coastal scrub/sandy or gravelly, suitable to support this species. openings. Elevation ranges from 30 Therefore, this species is unlikely to 660 feet (10 to 200 meters). to occur within the Study Area. Blooms Apr-Sep.

Point Reyes horkelia Rank 1B.2 Coastal dunes, coastal prairie, Unlikely. The Study Area does No mitigation measures are Horkelia marinensis coastal scrub/sandy. Elevation not contain sandy substrate recommended. ranges from 20 to 2480 feet (5 to suitable to support this species. 755 meters). Blooms May-Sep. Therefore, this species is unlikely to occur within the Study Area. coast iris Rank 4.2 Coastal prairie, lower montane Unlikely. The Study Area does No mitigation measures are Iris longipetala coniferous forest, meadows and not contain suitable habitat such recommended. seeps/mesic. Elevation ranges from as coastal prairie, lower montane 0 to 1970 feet (0 to 600 meters). coniferous forest, or meadows and Blooms Mar-May. seeps. Therefore, the Study Area is unlikely to support this species.

D-8 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** perennial goldfields Rank 1B.2 Coastal bluff scrub, coastal dunes, Unlikely. Although the Study No mitigation measures are Lasthenia californica coastal scrub. Elevation ranges from Area contains coastal scrub recommended. ssp. macrantha 20 to 1710 feet (5 to 520 meters). habitat, the documented species Blooms Jan-Nov. in the vicinity of the Study Area are known from locations along the coastline (e.g. along coastal bluffs). As the Study Area occurs more inland, it is unlikely that this species occurs within the Study Area. serpentine Rank 4.2 Cismontane woodland, coastal Unlikely. The Study Area does No mitigation measures are leptosiphon scrub, valley and foothill not contain serpentine substrates recommended. Leptosiphon ambiguus grassland/usually serpentine. to support this species. Elevation ranges from 390 to 3710 Therefore, this species is unlikely feet (120 to 1130 meters). Blooms to occur within the Study Area. Mar-Jun. coast yellow SC, Rank Coastal bluff scrub, coastal prairie. Unlikely. The Study Area does No mitigation measures are leptosiphon 1B.1 Elevation ranges from 30 to 490 feet not contain coastal bluff scrub or recommended. Leptosiphon croceus (10 to 150 meters). Blooms Apr- coastal prairie habitat May. communities. Therefore, the Study Area is unlikely to support this species. rose leptosiphon Rank 1B.1 Coastal bluff scrub. Elevation Unlikely. The Study Area does No mitigation measures are Leptosiphon rosaceus ranges from 0 to 330 feet (0 to 100 not contain coastal bluff scrub. recommended. meters). Blooms Apr-Jul. Therefore, the Study Area is unlikely to support this species.

D-9 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

Crystal Springs Rank 1B.2 Cismontane woodland, coastal Unlikely. The Study Area does No mitigation measures are lessingia scrub, valley and foothill not contain serpentine substrate recommended. Lessingia arachnoidea grassland/serpentine, often suitable to support this species. roadsides. Elevation ranges from Therefore, the Study Area is 200 to 660 feet (60 to 200 meters). unlikely to support this species. Blooms Jul-Oct. woolly-headed Rank 3 Broadleafed upland forest, coastal Unlikely. While the Study Area No mitigation measures are lessingia scrub, lower montane coniferous contains coastal scrub, this recommended. Lessingia hololeuca forest, valley and foothill species is more typical of grassland/clay, serpentine. undisturbed native grassland and Elevation ranges from 50 to 1000 serpentine soils. All proximate feet (15 to 305 meters). Blooms documented occurrences are Jun-Oct. associated with higher elevation areas over 5 miles east of the Study Area. Therefore, the Study Area is unlikely to support this species.

Ornduff's Rank 1B.1 Meadows and seeps/agricultural Unlikely. The Study Area does No mitigation measures are meadowfoam fields. Elevation ranges from 30 to not contain suitable habitat such recommended. Limnanthes douglasii 70 feet (10 to 20 meters). Blooms as meadows and seeps and ssp. ornduffii Nov-May. agricultural fields. Therefore, the Study Area is unlikely to support this species.

San Mateo tree lupine Rank 3.2 Chaparral, coastal scrub. Elevation Moderate. Coastal scrub habitat Although there is potential for Lupinus arboreus var. ranges from 300 to 1800 feet (90 to within the Study Area has a this species to occur within the eximius 550 meters). Blooms Apr-Jul. moderate potential to support this greater Study Area, this species species. However, the Limit of has no potential to occur within Work is composed of developed the Limit of Work. No further or disturbed areas and has no mitigation measures are potential to support this species. recommended.

D-10 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

Indian Valley bush- Rank 1B.2 Chaparral, cismontane Unlikely. The Study Area does No mitigation measures are mallow woodland/rocky, granitic, often in not contain suitable habitat such recommended. Malacothamnus burned areas. Elevation ranges from as chaparral, cismontane aboriginum 490 to 5580 feet (150 to 1700 woodland, or rocky or granitic meters). Blooms Apr-Oct. substrates. Therefore, this species is unlikely to occur within the Study Area. arcuate bush-mallow Rank 1B.2 Chaparral, cismontane woodland. Unlikely. The Study Area does No mitigation measures are Malacothamnus Elevation ranges from 50 to 1160 not contain suitable habitat such recommended. arcuatus feet (15 to 355 meters). Blooms Apr- as chaparral or cismontane Sep. woodland. Therefore, the Study Area has unlikely potential to support this species.

Davidson's bush- Rank 1B.2 Chaparral, cismontane woodland, Moderate. Coastal scrub habitat Although there is potential for mallow coastal scrub, riparian woodland. within the Study Area may support this species to occur within the Malacothamnus Elevation ranges from 610 to 2810 this species. However, the Limit greater Study Area, this species davidsonii feet (185 to 855 meters). Blooms of Work is composed of developed has no potential to occur within Jun-Jan. or disturbed areas and has no the Limit of Work. No further potential to support this species. mitigation measures are recommended.

Hall's bush-mallow Rank 1B.2 Chaparral, coastal scrub. Elevation Unlikely. The Study Area No mitigation measures are Malacothamnus hallii ranges from 30 to 2490 feet (10 to contains coastal scrub which may recommended. 760 meters). Blooms May-Sep support this species; however, the (Oct). nearest documented occurrence is from 1993 and is located approximately 30 miles from the Study Area in San Jose and is possibly extirpated. Therefore, the Study Area is unlikely to support this species.

D-11 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** marsh microseris Rank 1B.2 Closed-cone coniferous forest, Moderate. The Study Area Although there is potential for Microseris paludosa cismontane woodland, coastal scrub, contains coastal scrub which may this species to occur within the valley and foothill grassland. support this species. However, greater Study Area, this species Elevation ranges from 20 to 1160 the Limit of Work is composed of has no potential to occur within feet (5 to 355 meters). Blooms Apr- developed or disturbed areas and the Limit of Work. No further Jun (Jul). has no potential to support this mitigation measures are species. recommended. woodland Rank 1B.2 Broadleafed upland forest Unlikely. The Study Area does No mitigation measures are woolythreads (openings), chaparral (openings), not contain suitable habitat such recommended. Monolopia gracilens cismontane woodland, north coast as broadleafed upland forest, coniferous forest (openings), valley chaparral, cismontane woodland, and foothill grassland/serpentine. coniferous forest, valley or foothill Elevation ranges from 330 to 3940 grassland, or serpentine feet (100 to 1200 meters). Blooms substrate. Therefore, this species (Feb), Mar-Jul. is unlikely to occur in the Study Area.

Dudley's lousewort SR, Rank Chaparral (maritime), cismontane Unlikely. The Study Area does No mitigation measures are Pedicularis dudleyi 1B.2 woodland, north coast coniferous not contain suitable habitat such recommended. forest, valley and foothill grassland. as chaparral, cismontane Elevation ranges from 200 to 2950 woodland, north coast coniferous feet (60 to 900 meters). Blooms Apr- forest, or valley or foothill Jun. grassland. Therefore, this species is unlikely to occur in the Study Area. white-rayed FE, SE, Cismontane woodland, valley and Unlikely. The Study Area does No mitigation measures are pentachaeta Rank 1B.1 foothill grassland (often serpentine). not contain suitable habitat such recommended. Pentachaeta Elevation ranges from 110 to 2030 as cismontane woodland and bellidiflora feet (35 to 620 meters). Blooms valley and foothill grassland and Mar-May. does not contain serpentine substrate. Therefore, the Study Area is unlikely to support this species.

D-12 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

Choris' popcornflower Rank 1B.2 Chaparral, coastal prairie, coastal High Potential. The Study Area Although there is potential for Plagiobothrys scrub/mesic. Elevation ranges from contains suitable mesic/coastal this species to occur within the chorisianus var. 50 to 520 feet (15 to 160 meters). scrub habitat to support this greater Study Area, this species chorisianus Blooms Mar-Jun. species. There are known has no potential to occur within occurrences of this species on the the Limit of Work. No further surrounding properties with similar mitigation measures are habitats. However, the Limit of recommended. Work is composed of developed or disturbed areas and has no potential to support this species.

Oregon polemonium Rank 2B.2 Coastal prairie, coastal scrub, lower Moderate. The Study Area Although there is potential for Polemonium carneum montane coniferous forest. contains coastal scrub which may this species to occur within the Elevation ranges from 0 to 6000 feet support this species. However, greater Study Area, this species (0 to 1830 meters). Blooms Apr- the Limit of Work is composed of has no potential to occur within Sep. developed or disturbed areas and the Limit of Work. No further has no potential to support this mitigation measures are species. recommended.

Hickman's cinquefoil FE, SE, Coastal bluff scrub, closed-cone Unlikely. Occurrences No mitigation measures are Potentilla hickmanii Rank 1B.1 coniferous forest, meadows and documented in the vicinity of the recommended. seeps (vernally mesic), marshes and Study Area have occurred on swamps (freshwater). Elevation coastal bluffs which do not occur ranges from 30 to 490 feet (10 to within the Study Area. Therefore, 149 meters). Blooms Apr-Aug. the Study Area is unlikely to support this species.

Lobb's aquatic Rank 4.2 Cismontane woodland, north coast Unlikely. The Study Area does No mitigation measures are buttercup coniferous forest, valley and foothill not contain cismontane woodland, recommended. Ranunculus lobbii grassland, vernal pools/mesic. north coast coniferous forest, Elevation ranges from 50 to 1540 valley or foothill grassland, or feet (15 to 470 meters). Blooms vernal pools. Therefore, the Study Feb-May. Area is unlikely to support this species.

D-13 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

San Francisco Rank 1B.2 Coastal bluff scrub, chaparral, Unlikely. The Study Area does No mitigation measures are campion coastal prairie, coastal scrub, valley not contain sandy substrate recommended. Silene verecunda ssp. and foothill grassland/sandy. suitable to support this species. verecunda Elevation ranges from 100 to 2120 Therefore, the Study Area is feet (30 to 645 meters). Blooms unlikely to support this species. (Feb), Mar-Jun (Aug).

San Francisco owl's- Rank 1B.2 Coastal prairie, coastal scrub, valley Unlikely. The Study Area does No mitigation measures are clover and foothill grassland/usually not contain serpentine substrate to recommended. Triphysaria floribunda serpentine. Elevation ranges from support this species. Therefore, 30 to 520 feet (10 to 160 meters). the Study Area is unlikely to Blooms Apr-Jun. support this species. coastal triquetrella Rank 1B.2 Coastal bluff scrub, coastal Moderate. The Study Area Although there is potential for Triquetrella californica scrub/soil. Elevation ranges from 30 contains coastal scrub which may this species to occur within the to 330 feet (10 to 100 meters). support this species. However, greater Study Area, this species the Limit of Work is composed of has no potential to occur within developed or disturbed areas and the Limit of Work. No further has no potential to support this mitigation measures are species. recommended.

Methuselah's beard Rank 4.2 Broadleafed upland forest, north Unlikely. The Study Area does No mitigation measures are lichen coast coniferous forest/on tree not contain suitable habitat such recommended. Usnea longissimi branches; usually on old growth as broadleafed upland forest, hardwoods and conifers. Elevation north coast coniferous forest, or

ranges from 160 to 4790 feet (50 to old growth hardwoods or conifers. 1460 meters). Therefore, the Study Area is unlikely to support this species.

Wildlife

Mammals

D-14 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

American badger SSC Most abundant in drier open stages No Potential. The Study Area No further recommendations. of most shrub, forest, and does not contain suitable Taxidea taxus herbaceous habitats, with friable, grassland habitat for this species uncultivated soils. Prey on and it is not contiguous with burrowing rodents. occupied habitat. High development and disturbance levels preclude badger from the Study Area. fringed myotis WBWG Associated with a wide variety of No Potential. No abandoned No further recommendations. habitats including mixed coniferous- buildings, mines, rock outcrops or Myotis thysanodes deciduous forest and other suitable cavernous features redwood/sequoia groves. Buildings, are present. No large snags or mines, and large snags are conifer forest is present. The important day and night roosts. absence of such habitat features precludes the species from the Study Area.

Guadalupe fur seal FT, ST, Breed on Isla de Guadalupe off the No Potential. The Study Area No further recommendations. coast of Mexico, occasionally found CFP does not contain open ocean, or on San Miguel, San Nicolas, and beach habitat which is used by Arctocephalus San Clemente islands. Prefers the species. townsendi shallow, nearshore island water with cool and sheltered rocky areas for haul-outs. hoary bat WBWG Prefers open forested habitats or No Potential. The primary trees No further recommendations. habitat mosaics, with access to found within the Study Area are Lasiurus cinereus trees for cover and open areas or eucalyptus, which do not support habitat edges for feeding. Roosts in the complex cavities, or large dense foliage of medium to large limb diameter required to provide trees. Feeds primarily on moths. thermal stability to roosting bats. Requires water.

D-15 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** long-legged myotis WBWG Primarily found in coniferous Unlikely. No suitable snags, No further recommendations. forests, but also occurs seasonally mines, rock formations, or in riparian and desert habitats. abandoned buildings are present Myotis volans Large hollow trees, rock crevices, to support roosting. and buildings are important day roosts. Other roosts include caves, mines, and buildings. pallid bat SSC, Occupies a variety of habitats at low No Potential. No suitable trees, No further recommendations. WBWG elevation including grasslands, snags, mines, rock formations, or Antrozous pallidus shrublands, woodlands, and forests. abandoned buildings are present Most common in open, dry habitats to support roosting. with rocky areas for roosting.

San Francisco dusky- SSC Typically occurs in forest habitats of Unlikely. Any habitats within or No further recommendations. footed woodrat moderate canopy and moderate to adjacent to the Study Area are dense understory. Also found in open and maintained. The Study Neotoma fuscipes chaparral habitats. Area does not contain suitable annectens thick scrub habitat to support nesting by the species.

southern sea otter FT, CFP, Nearshore marine environments No Potential. The Study Area No further recommendations. from about Año Nuevo, San Mateo MMC does not contain ocean habitat SSC County. To Point Sal, Santa required to support this species. Enhydra lutris nereis Barbara County. Needs canopies of giant kelp and bull kelp for rafting and feeding. Prefers rocky substrates with abundant invertebrates.

D-16 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

Townsend’s big-eared SSC, SC, Primarily found in rural settings in a Unlikely. No caves or mines are No further recommendations. bat WBWG wide variety of habitats including oak present, and the Study Area has woodlands and mixed coniferous- high levels of disturbance from Corynorhinus deciduous forest. Day roosts highly Pacific Coast Highway, therefore townsendii associated with caves and mines. the Study Area does not contain Building roost sites must be cave suitable roost habitat. like. Very sensitive to human disturbance. western mastiff bat SSC, Found in a wide variety of open, No Potential. The Study Area No further recommendations. arid, and semi-arid habitats. WBWG does not contain tall mountain Distribution appears to be tied to cliffs, crags or mines to support Eumops perotis large rock structures, which provide roosting by this species. suitable roosting sites, including cliff crevices and cracks in boulders. western red bat WBWG Roosts primarily in trees often are in Unlikely. The Study Area does No further recommendations. edge habitats adjacent to streams, not contain suitable broad leaf Lasiurus blossevillii fields, or urban areas. trees or snags and has a high level of disturbance associated with Pacific Coast Highway, which precludes occupation by this species.

Bird

Alameda song BCC, SSC Year-round resident in tidal- No Potential. The Study Area No further recommendations. sparrow influenced marshes along the does not contain tidal marsh eastern and southern portions of San habitat used for nesting by this Melospiza melodia Francisco Bay. species. The Study Area is also pusillula outside of the typical range occupied by this species.

D-17 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

Allen’s hummingbird BCC Inhabits mixed evergreen, riparian Present. This species was See section 4.4 for further woodlands, eucalyptus and cypress observed during the site discussion concerning this Selasphorus sasin groves, oak woodlands, and coastal assessment and may nest on species. scrub during breeding season. Nest various substrates throughout the in shrubs and trees with dense Study Area. vegetation. ashy storm-petrel SSC, Marine species; nests in rocky No Potential. The Study Area No further recommendations. BCC crevices on offshore islands and does not contain islands or other Oceanodroma rocks from southern Mendocino marine habitats to support homochroa County to northern Baja California. nesting or foraging by this Forages over open ocean for species. invertebrates and larval fishes. bald eagle FD, SE, Frequents ocean shores, lake Unlikely. The Study Area occurs No further recommendations. CFP margins, and rivers for both nesting entirely within or adjacent to Haliaeetus and wintering. Requires abundant developed areas. Disturbance leucocephalus fish and adjacent snags or other from the golf course and adjacent perches. Nests in large, old-growth, residences makes the area less or dominant live tree with open suitable for eagles. No large branch-work. snags, or old growth forest is present to support nesting by eagles. bank swallow ST Migrant in riparian and other lowland No Potential. The Study Area No further recommendations. habitats in western California. does not contain cliffs required for Riparia riparia Colonial nester in riparian areas with nesting by this species. vertical cliffs and bands with fine- textured or fine-textured sandy soils near streams, rivers, lakes or the ocean. black oystercatcher BCC Resident along rocky shorelines. No Potential. There is no No further recommendations. Nests are small bowls or suitable rocky shoreline to support Haematopus depressions close to the shore. nesting by this species within the bachmani Study Area.

D-18 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** black skimmer BCC, Found primarily in southern No Potential. The Study Area No further recommendations. SSC California; South San Francisco Bay does not contain gravel bars, Rynchops niger has a small resident population. sandy beaches, or other suitable Nests colonially on gravel bars, low substrates to support nesting by islets, and sandy beaches the species. black swift SSC, BCC Summer resident with a fragmented No Potential. The Study Area No further recommendations. breeding distribution; most occupied does not contain cliffs or waterfalls

areas in California either montane or to support nesting by this species. Cypseloides niger coastal. Breeds in small colonies on cliffs behind or adjacent to waterfalls, in deep canyons, and sea-bluffs above surf. Forages aerially over wide areas.

Bryant’s savannah SSC Year-round resident of tidal marshes Moderate Potential. The Study See section 4.4 for further sparrow and grasslands in coastal fog belt. Area contains several wetland discussion concerning this Breeds from April through July. edge habitats which are often species. Passerculus occupied by this species. In sandwichensis addition, the species has been alaudinus commonly observed in the local area (eBird 2017). This species has moderate potential to occur within the Study Area and within or adjacent to the Limit of Work. burrowing owl SSC, BCC Open, dry annual or perennial No Potential. The Study Area No further recommendations. grasslands, deserts, and scrublands does not contain suitable burrows, Athene cunicularia characterized by low-growing and no ground squirrels were vegetation. Subterranean nester, observed within or adjacent to the dependent upon burrowing Study Area. Additionally, tall trees mammals, most notably, the and shrubs along the golf course California ground squirrel. block the views of owls, making the habitat further unsuitable for nesting.

D-19 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** California black rail ST, CFP Year-round resident in marshes No Potential. The Study Area is No further recommendations. (saline to freshwater) with dense outside of the known distribution Laterallus vegetation within four inches of the for this species. jamaicensis ground. Prefers larger, undisturbed coturniculus marshes that have an extensive upper zone and are close to a major water source. Extremely secretive and cryptic.

California brown FD, SD, Nests colonially on coastal islands of No Potential. The Study Area No further recommendations. pelican CFP, SMC small to moderate size, which afford does not contain coastal island LCP immunity from attack by habitat and is out of the breeding Pelecanus ground-dwelling predators. Does not range for this species. occidentalis breed north of the Channel Islands. californicus Winter visitor and post-breeding disperser to San Francisco Bay region.

California least tern FE, SE Nests along the coast from San No Potential. There is no sand, No further recommendations. Francisco bay south to northern Baja dune or beach habitat present Sterna antillarum California. Colonial breeder on bare within the Study Area to support browni or sparsely vegetated, flat nesting by the species. substrates: sand beaches, alkali flats, landfills, or paved areas.

Caspian tern BCC Summer resident in the region. No Potential. There are no No further recommendations. Nests in small colonies inland and sandbars, or island habitat to Sterna caspia along the coast, usually on small support nesting by this species. islands and sandbars. This species may be commonly observed foraging in the ocean adjacent to the Study Area.

Cassin’s auklet SSC, BCC Pelagic species, nesting colonially in No Potential. The Study Area No further recommendations. burrows on coastal and offshore does not contain shoreline, island, Ptychoramphus islands. or ocean habitats to support this aleuticus species.

D-20 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

Costa’s BCC Summer resident. Uses xeric No Potential. The Study Area No further recommendations. hummingbird habitats, especially California does not contain suitable xeric coastal scrub or sage scrub and dry coastal or sage scrub habitats to open areas of chaparral in the coast support nesting by the species. Calypte costae ranges, and is occasionally found in oak savannah. Builds nest in shrub or tree living or dead, on branch, stem, or leaves, usually 1–2 m above ground. golden eagle CFP Year-round resident in rolling Unlikely. The Study Area occurs No further recommendations. foothills with open grasslands, entirely within or adjacent to Aquila chrysaetos scattered trees, and cliff-walled developed areas. Disturbance canyons. from the golf course and adjacent residences makes the area less suitable for eagles. No large snags or old growth forest is present to support nesting by eagles. grasshopper sparrow SSC Frequents dense tall, dry, or well- Moderate Potential. Near the See section 4.4 for further drained grasslands, especially native northwestern corner of the Study discussion concerning this Ammodramus grasslands with mixed grasses and Area, tall grasses and coyote species. savannarum forbs for foraging and nesting. Nests brush may provide suitable on ground at base of overhanging nesting and foraging habitat for clumps of vegetation. the species. This species has moderate potential to occur within the Study Area and within or adjacent to the Limit of Work.

D-21 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** great blue heron breeding Year-round resident. Nests Unlikely. Rookeries for this No further recommendations. colonially or semi-colonially in tall colonies species require large trees protected trees and on cliffs, also sequestered adjacent to waterbodies with Ardea herodias by CDFW terrestrial substrates. Breeding sufficient access to forage fishes sites usually in close proximity to in order to provide food for the foraging areas: marshes, lake colony. No suitable waterbodies margins, tidal flats, and rivers. are present to support a colony of Forages primarily on fishes and this species. The species may other aquatic prey, also smaller be observed individually foraging terrestrial vertebrates. in wetlands, and ponds of the gold course.

Lawrence's goldfinch BCC Summer resident, primarily in Unlikely. The Study Area does No further recommendations. southern California. Generally not contain arid open woodland, uncommon and local. Also, found or oak savannah to support Spinus (= Carduelis) in large open areas in Contra Costa nesting by the species. lawrencei and Alameda Counties. Typically found in arid open woodlands, including oak savannah. Breeding distribution is erratic from year to year. loggerhead shrike SSC, BCC Prefers open habitats with scattered Moderate Potential. The See section 4.4 for further shrubs, trees, posts, or other eucalyptus woodland and shrub discussion concerning this Lanius ludovicianus perches. Eats mostly large insects. habitats along the northern portion species. of the Study Area contain suitable nesting habitat for this species. This species has moderate potential to occur within the Study Area and within or adjacent to the Limit of Work.

D-22 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** marbled murrelet FT, SE Breed in old-growth redwood stands No Potential. The Study Area No further recommendations. containing platform-like branches and vicinity do not contain suitable Brachyramphus along the coast. Winters in coastal old growth redwood or fir trees to marmoratus waters. support nesting by this species. In addition, this species is not known to nest in this portion of coastal San Mateo County (ebird 2017). northern harrier SSC Coastal salt and freshwater marsh. No Potential. No tall annual No further recommendations. Nest and forage in grasslands, from grasslands or extensive Circus cyaneus salt grass in desert sink to mountain marshlands are present to support cienagas. Nests on ground in nesting by the species. shrubby vegetation, usually at marsh edge.

Nuttall’s woodpecker BCC Year-round resident in lowland Unlikely. Trees within the Study No further recommendations. Area are not species, which woodlands throughout much of California west of the Sierra Nevada. typically support cavities suitable Picoides nuttallii Typical habitat is dominated by oaks; for nesting by this species. also occurs in riparian woodland. Nests in tree cavities. oak titmouse BCC Occurs year-round in woodland and Unlikely. Trees within the Study No further recommendations. Area are not species, which savannah habitats where oaks are present, as well as riparian areas. typically support cavities suitable Baeolophus inornatus Nests in tree cavities. for nesting by this species. olive-sided flycatcher SSC, BCC Conifer forests where tall trees Unlikely. The Study Area does No further recommendations. overlook canyons, meadows, lakes, not contain the diverse habitat Contopus cooperi coastal areas, or other open terrain mosaic of woodland and elevation with varied terrain to support nesting by the species.

D-23 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** peregrine falcon FD, SD, Resident and winter visitor to region. Unlikely. Tall trees are present No further recommendations. CFP, Occurs near wetlands, lakes, rivers, within the Study Area; however, Falco peregrinus BCC or other water; on cliffs, banks, continual anthropogenic dunes, mounds; also, human-made disturbances from golf course staff structures. Nest consists of a scrape and residents in the area diminish on a depression or ledge in an open suitability for the species to nest. site. purple martin SSC Inhabits woodlands, low elevation Unlikely. Trees within the Study No further recommendations. coniferous forest. Nest in snags, old Area are not species, which Progne subis woodpecker cavities, and human- typically support cavities suitable made structures. for nesting by this species.

Ridgway’s (clapper) FE, SE, Associated with tidal salt marsh and No Potential. The Study Area is No further recommendations. rail CFP brackish marshes supporting outside the known range of this emergent vegetation, upland refugia, species. No salt marsh is present Rallus obsoletus and incised tidal channels. to support the species. (longirostris) obsoletus rufous hummingbird BCC Nesting occurs in the transition zone Unlikely. The Study Area is No further recommendations. of northwest coastal area from outside the known breeding range Selasphorus rufus Oregon border to southern Sonoma of this species. This species may county. Nests in berry tangles, be observed during migration. shrubs, and conifers. Favors habitats rich in nectar-producing flowers.

Saltmarsh common SSC, BCC Resident of San Francisco bay Moderate Potential. While small See section 4.4 for further yellowthroat region fresh and salt-water marshes. in size, the marsh habitat near the discussion concerning this Requires thick, continuous cover western extent of the Study Area species. Geothlypis trichas down to water surface for foraging, may be suitable to support nesting sinuosa tall grasses, tule patches, willows for by the species. This species has nesting. moderate potential to occur within the Study Area and within or adjacent to the Limit of Work.

D-24 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** short-tailed albatross FE Nests on Japanese islands. Very No Potential. The Study Area is No further recommendations. rare winter visitor to offshore outside the typical breeding range Diomedea albatrus California waters. for this species. The Study Area does not contain offshore islands required for nesting by the species. tricolored blackbird SSC, BCC Usually nests over or near Unlikely. While a small patch of No further recommendations. freshwater in dense cattails, tules, or tule marsh does occur near the Agelaius tricolor thickets of willow, blackberry, wild western edge of the Study Area, it rose or other tall herbs. Nesting is too small to support a colony of area must be large enough to tricolored blackbirds with both support about 50 pairs. nesting and foraging opportunities.

Vaux's swift SSC Summer resident, breeding primarily No Potential. Trees throughout No further recommendations. in forested areas. Nests in tree the Study Area are primarily Chaetura vauxi cavities, favoring those with a large eucalyptus and monterey cypress vertical extent; also uses chimneys which do not support the large and other man-made substrates. cavities required for nesting by Forages aerially for insects. this species. western snowy plover FT, SSC, Federal listing applies only to the No Potential. There is no sand, No further recommendations. Charadrius BCC, RP Pacific coastal population. Found on dune or beach habitat present sandy beaches, salt pond levees, within the Study Area to support alexandrinus nivosus and shores of large alkali lakes. nesting by the species. Requires sandy, gravelly, or friable soils for nesting.

D-25 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** white-tailed kite CFP Year-long resident of coastal and Moderate Potential. While See section 4.4 for further valley lowlands. Preys on small continual anthropogenic discussion of this species. Elanus leucurus diurnal mammals and occasional disturbances are present nearby, birds, insects, reptiles, and this species typically nests in amphibians. close proximity to human activities and has ample foraging areas within the golf course and in adjacent grasslands. This species has moderate potential to occur within the Study Area and within or adjacent to the Limit of Work.

Xantu’s murrelet SSC Generally rare post-breeding No Potential. The Study Area is No further recommendations. disperser to the region. Pelagic, outside the breeding range for this Synthliborampus breeding on offshore islands in rock species. The Study Area does not hypoleucus crevices or under bushes. Does not contain shoreline or other suitable breed north of the Channel Islands. habitat to support this species. yellow warbler SSC Summer resident in the region. Unlikely. This species has only No further recommendations. Nests in riparian stands of aspens, rarely been observed in the local Setophaga sycamores, and alders with a dense area (eBird 2017). Additionally (Dendroica) petechia understory of willows. Also nests in typical stands of broad leafed montane shrubbery in open conifer riparian trees used for nesting are forests. not present within the Study Area. yellow-breasted chat SSC Summer resident; inhabits riparian Unlikely. The riparian habitat No further recommendations. thickets of willow and other brushy near the western edge of the Icteria virens tangles near watercourses. Nests in Study Area is not dense enough to low, dense riparian thickets support nesting by this species. consisting of willow, blackberry, wild Because riparian vegetation is grape limited and unsuitable, the species is unlikely to be present.

Reptiles and Amphibians

D-26 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

Western pond turtle SSC Occurs in perennial ponds, lakes, Unlikely. No records of this No further recommendations. rivers and streams with suitable species have been documented Actinemys basking habitat (mud banks, mats of within 5 miles of the Study Area. marmorata floating vegetation, partially Most records in the area occur submerged logs) and submerged near Crystal Springs Reservoir. shelter. While ponds associated with the golf course occur in close proximity to the Study Area, the lack of occurrences, and adjacent occupied habitats preclude turtle.

California giant SSC Occurs in the north-central Coast No Potential. The aquatic No further recommendations. salamander Ranges. Moist coniferous and features within the Study Area mixed forests are typical habitat; are not naturally connected to also uses woodland and chaparral. any source populations or Dicamptodon Adults are terrestrial and fossorial, waterways that would allow this ensatus breeding in cold, permanent, or species to enter the Study Area. semi-permanent streams. Larvae The nearest occurrence is 3.6 usually remain aquatic for over a miles east of the Study Area year. within Purisima Creek, a natural waterway with perennial flows in the headwaters (CDFW 2017).

California red-legged FT, SSC Associated with quiet perennial to High Potential. This species has See section 4.4 for further frog intermittent ponds, stream pools, and been documented to the north and discussion of this species. wetlands with adjacent upland south of the Study Area. Aquatic Rana draytonii habitat containing refugia. Prefers features within the Study Area shorelines with extensive vegetation. provide high potential to support Documented to disperse through this species. However, the Limit upland habitats after rains. of Work is unlikely to support this species because it is composed entirely of developed or paved surfaces and does not contain suitable habitat for this species.

D-27 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

California tiger FE/FT, Populations in Santa Barbara and No Potential. The Study Area is No further recommendations. salamander ST, RP Sonoma counties currently listed as outside of the known range for endangered; threatened in this species. remainder of range. Inhabits Ambystoma grassland, oak woodland, ruderal californiense and seasonal pool habitats. Adults are fossorial and utilize mammal burrows and other subterranean refugia. Breeding occurs primariiy in vernal pools and other seasonal water features.

San Francisco garter FE, SE, Vicinity of freshwater marshes, Moderate Potential. This species See section 4.4 for further snake CFP ponds, and slow moving streams in has been documented to the north discussion of this species. San Mateo County and extreme and south of the Study Area. Thamnophis sirtalis northern Santa Cruz County. Ponded waters within the Study tetrataenia Prefers dense cover and water Area provide moderate potential to depths of at least one foot. support this species. However, the Limit of Work is unlikely to support this species because it is entirely composed of developed or paved surfaces and does not contain suitable habitat for this species.

D-28 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

Santa Cruz black SSC Climbing salamanders of the genus No Potential. The creek within No further recommendations. salamander Aneides frequent damp woodlands the Study Area is fed and and are usually found hiding under managed by the outflows of the various debris (i.e. bark, woodrat golf course pond. No natural Aneides nests, logs). The Santa Cruz black creeks are present to support the flavipunctatus niger salamander exists south of the San species. The composition of Francisco Bay and was only vegetation within the eucalyptus recently recognized as a separate forest also severely limits the and protected species. Santa Cruz type of structure available for black salamander is highly salamanders. Additionally, the sedentary, preferring to stay hidden Study Area is at the far northwest under riparian debris. Prey items edge of their range and no include millipedes, spiders, and occurrences have been recorded other insects (Thompson et al in the local area (CDFW 2017). 2016).

Fish

Coho FE, SE Federal listing includes populations No Potential. The watercourse No further recommendations. salmon - Central CA between Punta Gorda and San that flows through the Study Area Coast ESU Lorenzo River. State listing includes is fed by the golf course ponds populations south of San Francisco and is not a natural, natal stream. Oncorhynchus kisutch Bay only. Occurs inland and in Therefore there is no suitable coastal marine waters. Requires stream habitat in the Study Area beds of loose, silt-free, coarse gravel to support the species. for spawning. Also needs cover, cool water and sufficient dissolved oxygen.

Delta smelt FT, SE, Lives in the Sacramento-San No Potential. The Study Area is No further recommendations. Joaquin estuary in areas where salt RP outside of the species known and freshwater systems meet. range. Hypomesus Occurs seasonally in Suisun Bay, transpacificus Carquinez Strait and San Pablo Bay. Seldom found at salinities > 10 ppt; most often at salinities < 2 ppt.

D-29 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA** longfin smelt ST, RP Found in open waters of estuaries, No Potential. The Study Area is No further recommendations. mostly in the middle or bottom of the not within the known distribution of Spirinchus water column. This species prefers this species. thaleichthys salinities of 15 to 30 ppt, but can be found in completely freshwater to almost pure seawater. steelhead, Central FT Occurs from the Russian River south No Potential. The watercourse No further recommendations. California Coast ESU to Soquel Creek and Pajaro River. that flows through the Study Area Also in San Francisco and San is fed by the golf course ponds Oncorhynchus mykiss Pablo Bay Basins. Adults migrate and is not a natal stream. irideus upstream to spawn in cool, clear, Therefore, there is no suitable well-oxygenated streams. Juveniles stream habitat in the Study Area remain in fresh water for 1 or more to support the species. years before migrating downstream to the ocean. tidewater goby FE, SSC Brackish water habitats along the No Potential. There is no lagoon No further recommendations. California coast from Agua Hedionda habitat present within the Study Eucyclogobius Lagoon, San Diego County to the Area. newberryi mouth of the Smith River. Found in shallow lagoons and lower stream reaches, they need fairly still but not stagnant water and high oxygen levels.

Invertebrates

Bay checkerspot FT, SSI, RP Restricted to native grasslands on No Potential. The Study Area is No further recommendations. butterfly outcrops of serpentine soil in the composed of golf course fairways, vicinity of San Francisco Bay. urban development and

Plantago erecta is the primary host eucalyptus grove, combined with Euphydryas editha plant; Orthocarpus densiflorus and the lack of serpentine soils, bayensis O. purpurscens are the secondary precludes the presence of host plants. species-specific host plants required to sustain a population.

D-30 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

California brackish SMC Occurs in brackish water, such as No Potential. There is no No further recommendations. water snail LCP Pescadero Marsh. brackish water habitat in the Study Area. Tryonia imitator

Edgewood blind SSI Open grassland in areas of No Potential. No serpentine No further recommendations. harvestman serpentine bedrock. Found on the soils exist within the Study Area underside of moist serpentine rocks to support this species. near permanent springs. Originally Calicina (=Sitalcina) collected at Crystal Springs minor Reservoir in San Mateo County, the species has not been collected there since the construction of Interstate 280. In spite of intensive phalangodid collecting in the Bay Area, the species is currently known only from Edgewood Park. Even where present, populations of this species are quite small. globose dune beetle SMC Inhabits California's coastal dune No Potential. The Study Area No further recommendations. LCP system. does not contain sandy or dune Coelus globosus habitats required by this species.

Mission blue butterfly FE, SSI Inhabits grasslands of the San No Potential. The Study Area is No further recommendations. Francisco peninsula. Three larval composed of golf course fairways, Plebejus icarioides host plants: Lupinus albifrons, L. urban development and missionensis variicolor, and L. formosus, of which eucalyptus grove, all of which L. albifrons is favored. preclude the presence of species specific host plants.

D-31 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

Monarch butterfly SSI Winter roost sites located in wind- Unlikely. The Study Area No further recommendations. protected tree groves (Eucalyptus, contains a eucalyptus grove; Danaus plexippus Monterey pine, cypress), with nectar however, it is only two trees deep and water sources nearby. Winter throughout most of its length and roosts monitored by CDFW. functions as a windbreak along the north side of the golf course. The narrow width and linear planting is unlikely to provide suitable protection from winds for roosting monarch butterflies.

Myrtle's silverspot FE, SSI Foggy, coastal dunes and hills of the No Potential. This species has No further recommendations. butterfly Point Reyes Peninsula. been extirpated from San Mateo County (USFWS 2017d). Speyeria zerene myrtleae

Ricksecker's water SSI Small aquatic beetle known only No Potential. The Study Area is No further recommendations. scavenger beetle from pond habitats scattered around outside of the known distribution the San Francisco Bay area, of this species.

including Marin, Sonoma, Alameda, Hydrochara Lake, and Contra Costa counties. rickseckeri Extensive surveys from 1988 failed to locate this species. The locations of existing populations remain unknown (Hafernick 1989).

San Bruno elfin FE, SSI Inhabits coastal mountainous areas No Potential. The Study Area is No further recommendations. butterfly with grassy ground cover, mainly in outside of this species known the vicinity of San Bruno Mountain, range and does not contain Callophrys mossii San Mateo County. Colonies are suitable rocky outcrops or north bayensis located on steep, north-facing slopes facing terrain to support the host within the fog belt. Larval host plant plant. is Sedum spathulifolium.

D-32 POTENTIAL FOR SPECIES STATUS* HABITAT OCCURRENCE WITHIN THE RECOMMENDATIONS STUDY AREA**

San Francisco tree SMC Occurs only on sandy northern No Potential. The Study Area No further recommendations. lupine moth LCP peninsula sites. Tree lupine does not contain sandy habitats or (Lupinus arboreus) host the larvae of the larval host plant for this Grapholita this species. This species is species. edwardsiana addressed in the San Mateo County LCP. western bumble bee SSI Formerly common throughout much Unlikely. Most of the Study Area No further recommendations. of western North America; is composed of managed golf Bombus occidentalis populations from southern British course fairways, maintenance Columbia to central California have yard, and urban infrastructure. nearly disappeared (Evans et al All of these features exclude 2017). Occurs in a wide variety of burrowing mammals and the habitat types. Nests are establishment of colonies for this constructed annually in pre-existing species. cavities, usually on the ground (e.g. mammal burrows). Many plant species are visited and pollinated.

D-33 * Key to status codes: BCC U.S. Fish & Wildlife Service (USFWS) Birds of Conservation Concern CFP CDFW Fully Protected Animal FE Federal Endangered FT Federal Threatened RP Sensitive species included in a USFWS Recovery Plan or Draft Recovery Plan SC State Candidate Species for listing SE State Endangered SSC California Department of Fish and Game (CDFG) Species of Special Concern ST State Threatened Rank 1A California Native Plant Society (CNPS) Rank 1A: Plants presumed extirpated in California and rare or extinct elsewhere Rank 1B.1 California Native Plant Society (CNPS) Rank 1B.1: Plants rare, threatened or endangered in California and elsewhere (seriously threatened in California) Rank 1B.2 California Native Plant Society (CNPS) Rank 1B.2: Plants rare, threatened, or endangered in California and elsewhere (moderately threatened in California) Rank 2B.2 California Native Plant Society (CNPS) Rank 2B.2: Plants rare, threatened, or endangered in California, but more common elsewhere (moderately threatened in California) Rank 4.3 California Rare Plant Rank 4.3: Plants of Limited Distribution - A Watch List (not very threatened in California) WBWG Western Bat Working Group High Priority Species WL CDFW Watch List

**Potential species occurrence definitions: Present. Species was observed on the site during site visits or has been recorded (i.e. CNDDB, other reports) on the site recently.

High Potential. All of the habitat components meeting the species requirements are present and/or most of the habitat on or adjacent to the site is highly suitable. The species has a high probability of being found on the site.

Moderate Potential. Some of the habitat components meeting the species requirements are present, and/or only some of the habitat on or adjacent to the site is unsuitable. The species has a moderate probability of being found on the site.

Unlikely. Few of the habitat components meeting the species requirements are present, and/or the majority of habitat on and adjacent to the site is unsuitable or of very poor quality. The species has a low probability of being found on the site.

No Potential. Habitat on and adjacent to the site is clearly unsuitable for the species requirements (foraging, breeding, cover, substrate, elevation, hydrology, plant community, site history, disturbance regime).

D-34

APPENDIX E

STUDY AREA PHOTOGRAPHS

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Eucalyptus grove just north of Redondo Beach Road in the northern region of the Study Area. Photograph taken 4/12/2017.

Seasonal wetland just north of Redondo Beach Road in the northern region of the Study Area. Photograph taken 4/12/2017.

Appendix E. Site Photographs 1 Perennial stream mapped in the central region of the Study Area within the eucalyptus grove. Photograph taken 4/12/2017.

Intermittent stream mapped in the northern region of the Study Area within the eucalyptus grove. Photograph taken 4/12/2017.

Appendix E. Site Photographs 2 Golf course lawns in the central region of the Study Area. Photograph taken 4/12/2017.

Central coast riparian scrub, view from within Study Area looking west to areas beyond the Study Area. Photograph taken 4/12/2017.

Appendix E. Site Photographs 3 Emergent wetland in the southern portion of Study Area, adjacent to a golf course pond. Photograph taken 4/12/2017.

Central coast riparian scrub, view from within the Study Area looking west to areas beyond the Study Area.

Appendix E. Site Photographs 4 Looking toward the Study Area from Redondo The golf course maintenance yard which Beach Road. Tall eucalyptus form a wind borders the Study Area and is continually break for the golf course located beyond the inundated with disturbance from staff and eucalyptus grove. equipment.

Housing construction at the edge of the golf The outflow of a golf course pond. course, immediately adjacent to the Study Area.

Appendix E. Site Photographs 5 This page intentionally blank.

APPENDIX F

PRELIMINARY CONSTRUCTION DRAWINGS (SCHAAF & WHEELER)

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

 

    



    

 

     

   



        

  

   

 

 

    

       CITY OF HALF MOON BAY                                        Pacific Ocean



 

    



    

 



    

   



                                                                                                                                                                                     / /  / / / / / /  / / / / / / / /  /  /                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

    

 

 

     

 

28 FT WIDE ROAD





         

  5 290        300         310  4     

200

            

 

(N) 10" SSFM

 

 

 

   EG     

    

 

   

    

  

  

 

                

  

    

    20 FT WIDE SEWER &  WATER EASEMENT   

 (76 M 9-16)    





                         

     

              



            

(N) 10" SSFM  

 

 

 

EG

  (E) 6" PELICAN POINT SSFM (N) 10" SSFM 

 (E) 4" PVC  (E) WATER ELECTRICAL 

SERVICE CONDUIT     

(E) 6" ABANDONED (E) 6" PELICAN (E) 36" CORRUGATED PELICAN POINT POINT SSFM HDPE SD   (E) 10" SS (E) SS LATERAL  SSFM 

(E) 10" SS      

                

          

20 FT PUBLIC UTILITY EASEMENT &

EMERGENCY ACCESS EASEMENT

(76 M 9-16 & 137 M 1-7)

    

 

              

       

       

   

               

 

  

    







(E) 4" PVC ELECTRICAL CONDUIT &  6" ABANDON SS LATERAL. EG PROPOSED 8" CONTRACTOR SHALL PROTECT (E) (E) 8" DIP WATER MAIN OCEAN COLONY FM  (N) 10" SSFM ELECTRICAL CONDUIT IN PLACE

 

  (E) 6" SS  APPROXIMATE (E) 12" SD (E) 6" PELICAN ELEVATION OF (E) 6" (E) 8" SS POINT SSFM PELICAN POINT SSFM (E) 24" RCP SD

            

               

          



          

    





DISCHARGE MANHOLE 



 

  

           

           

  



 

    



    

 

    



   



     



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REMOVE (E) SHRUBS

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

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PROTECT (E) SHRUBS / /

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STREET LIGHT REMOVE (E)

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RE-ROUTE UNDERGROUND ELECTRICITY

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REMOVE (E) ELECTRICAL BOX & RE-ROUTE UNDERGROUND ELECTRICAL /

REMOVE (E) SHRUBS

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REMOVE (E) SHRUBS

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WATER SERVICE AND TELECOM

RE-ROUTE EXISTING UNDERGROUND / 

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REMOVE (E) FENCE

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REMOVE (E) ELECTRICAL HANDHOLE

/ / STORAGE CABINET REMOVE (E) WOOD REMOVE (E) HOSE BIB & RELOCATE WATER LINE

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CONTROL PANEL REMOVE (E)

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/ X / /

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/ X / / / X X

X / / 

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X

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X /

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ABANDON (E) FORCE MAIN

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/ X 

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/ X

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PROTECT (E) SHRUBS X 

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SLAB, HATCH, AND PIPING

REMOVE (E) WETWELL TOP

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X X

/ / REMOVE MOTOR CONTROL CABINET

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X

/ X

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X / / X/ / / X/ / / X/ / / X/ / / X / / / / / / REMOVE (E) GENERATOR REHABILITATE (E) INFLUENT MANHOLE   PROTECT (E) SHRUBS



 

    



    

 

    



   



       20'-0"

NEW FENCE

X X X X X X

X X

PROTECT (E) SHRUBS NEW FENCE X

PROPERTY LINE FOR 200 FAIRWAY DR X  NEW FENCE X

NEW SCADA POLE, SEE ELECTRICAL SHEETS X ALUMINUM SOUND ATTENUATING ENCLOSURE NEW GENERATOR IN X

RE-ROUTE UNDERGROUND POWER, SEE ELECTRICAL SHEETS (N) LANDSCAPING

SEE ELECTRICAL SHEETS X

NEW ELECTRICAL SERVICE, 41'-0" X SEE ELECTRICAL SHEETS

NEW CONTROL PANEL, X RE-ROUTE EXISTING UNDERGROUND TELECOM X W

WATER METER & VAULT X WATER METER (N) 3/4" COPPER WATER LINE, CONNECT NEAR (E) SEE DETAIL 5/D2 (N) WATER BIB  W 2'±

W W W W W W W W W W W W W

X

NEW VAULT, VALVES, & PIPING X

EASEMENT LIMITS 

NEW TWO 5 FT WIDE ACCESS GATES

TOP SLAB & HATCH SEE SHEET C8 NEW PUMPS, WETWELL

X

X X

 X (N) FENCE

PROTECT (E) SHRUBS X



X

X

X X

X X X X X X 21'-3" REHABILITATE (E) INFLUENT MANHOLE   PROTECT (E) SHRUBS          

 

    

              

                                                   

                                       

         

 

 

                

                

            

  

                       

                       

  

        

                                                                                                           



                    

  

                                           

   

                  

    

                   

  

           

           



    

    

 

         

     

 

        

        

                 

    

      

                 

            

                         

            

 

  

 

           

        

          

     

                        

  