HomeMy WebLinkAbout3811; El Camino Real Rd Widening Technical Studies; El Camino Real Rd Widening Technical Studies; 2007-09-01TECHNICAL STUDIES
for
EL CAMINO REAL ROAD WIDENING
Carlsbad, California
Prepared for:
CITY OF CARLSBAD
1635 Faraday Avenue
Carlsbad, CA 92008
Prepared by:
DUDEK
605 Third street
Encinitas, California 92024
Contact: Shawn Stiamlou
(760)479-4228
SEPTEMBER 2007
APPENDIX A
Biological Resources Technical Report
(Dudek, September 2007)
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m TABLE OF CONTENTS
*" Section Page No,
" EXECUTIVE SUMMARY V
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^ 1.0 INTRODUCTION 1
m 1.1 Project Description 1
« 2.0 METHODS 3
2.1 Literature Review 3
^ 2.2 Field Reconnaissance 3
^ 2.2.1 Resource Mapping 4
2.2.2 Flora 5
" 2.2.3 Fauna 5
m 2.2.4 Jurisdictional Wetlands Delineation 6
^ 2.2.5 Sensitive/Regulated Biological Resources 6
2.3 Survey Limitations 7
MM
3.0 PHYSICAL CHARACTERISTICS „ 7
^ 3.1 Site Description 7
3.1.1 Project Location and Regional Setting 7
3.1.2 On-Site and Surrounding Land Uses 8
3.1.3 Soils 8
- 4.0 RESULTS OF SURVEY 11
4.1 Botany - Vegetation Communities and Floral Diversity 11
mm 4.1.1 Coastal Sage Scrub (including disturbed) 12
^ 4.1.2 Native Grassland (including disturbed) 18
4.1.3 Riparian Scrub 18
• 4.1.4 Unvegetated Stream Channel 19
• 4.1.5 Concrete-lined Channel 19
^ 4.1.6 Developed 19
4.1.7 Disturbed Lands 19
4.1.8 Eucalyptus Woodland 20
• 4.1.9 Non-native Grassland 20
» 4.1.10 Ornamental 20
4.1.11 Floral Diversity 21 m
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TABLE OF CONTENTS {Continued)
Section Page No,
4.2 Zoology- Wildlife Diversity 21
4.2.1 Reptiles and Amphibians 21
4.2.2 Birds 21
4.2.3 Mammals 21
4.2.4 Invertebrates 22
4.3 Sensitive Biological Resources 22
4.3.1 Sensitive Plant Species 22
4.3.2 Sensitive Habitat 26
4.3.3 Sensitive Wildlife Species 27
4.4 Jurisdictional Waters 32
4.4.1 Non-wetlands Jurisdictional Waters 32
4.4.2 ACOE Wetlands 33
4.4.3 CDFG-Jurisdictional Riparian Areas 33
4.5 Wildlife Corridor and Habitat Linkage 33
4.6 Regional Resource Planning Context 34
4.6.1 Carlsbad Habitat Management Plan 34
4.6.2 Coastal Zone 35
5.0 ANTICIPATED PROJECT IMPACTS 36
5.1 Direct Impacts 37
5.1.1 Vegetation Communities 37
5.1.2 Jurisdictional Waters 43
5.1.3 Sensitive Plant Species 43
5.1.4 Sensitive Wildlife Species 43
5.1.5 Regional Resource Planning Context 43
5.1.6 Coastal Zone 44
5.2 Indirect Impacts 44
5.3 Cumulative Impacts 44
• 6.0 ANALYSIS OF SIGNIFICANCE 44
6.1 Explanation of Findings of Significance 44
m 6.2 Direct Impacts 45
il 6.2.1 Sensitive Vegetation Communities 45
6.2.2 Jurisdictional Waters 45
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^ TABLE OF CONTENTS {Continued)
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m Section Page No.
* 6.2.3 Sensitive Wildlife Species 45
6.3 Indirect Impacts 45
m 6.4 Cumulative Impacts 46
7.0 PROPOSED CONSERVATION AND MITIGATION MEASURES 46
•* 7.1 Direct Impacts 47
* 7.1.1 Sensitive Vegetation 47
^ 7.1.2 Jurisdictional Waters 47
7.1.3 Sensitive Wildlife 47
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8.0 ACKNOWLEDGMENTS 48
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" 9.0 LITERATURE CITED 48
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APPENDICES
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*" Appendix A List of Vascular Plant Species Observed on Site
mm. Appendix B List of Wildlife Species Observed on Site
^ Appendix C Jurisdictional Wetlands Determination Data Forms
Appendix D Sensitive Species Designations
LIST OF FIGURES
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Figure 1 Regional Map 9
* Figure 2 Vicinity Map on Aerial Photo 10
* Figure 3 Biological Resources Index Map 13
^ Figure 3A Biological Resources Map 14
^ Figure 3B Biological Resources Map 15
Figure 3C Biological Resources Map 16
^ Figure 3D Biological Resources Map 17
m Figure 4 Biological Resources Map with APE Limits Index Map 38
Figure 4A Biological Resources Map with APE Limits 39
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TABLE OF CONTENTS {Continued)
Page No.
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Figure 4B Biological Resources Map with APE Limits 40
Figure 4C Biological Resources Map with APE Limits 41
Figure 4D Biological Resources Map with APE Limits 42
LIST OF TABLES
Table 1 Schedule of Surveys 4
Table 2 Vegetation Communities and Land Covers 12
Table 3 Sensitive Plant Species Detected or Potentially Occurring on the Project Site 22
Table 4 Sensitive Wildlife Species Detected or Potentially Occurring in the Project Area27
Table 5 Jurisdictional Areas 32
Table 6 Vegetation Communities/Land Covers Within the Coastal Zone 36
Table 7 Project Impacts to Vegetation Communities and Land Covers 37
Table 8 Project Impacts to Jurisdictional Areas 43
Table 9 Recommended Mitigation For Impacts to Sensitive Vegetation and Jurisdictional
Waters (Acres) 47
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EXECUTIVE SUMMARY
Existing and potential biological resources on the approximately 28.93-acre study area for the
proposed El Camino Real Road Widening Project were examined through field reconnaissance
and evaluation of the potential of habitat to support sensitive wildlife and plant species. The
purpose of this report is to provide a summary of biological resources in the study area, to
evaluate the significance of impacts of the proposed project upon these resources and to discuss
m mitigation measures that could reduce these impacts to a less-than-significant level. This report
m serves as the technical analysis of the project's biological resources impacts under the California
Environmental Quality Act (CEQA).
Five vegetation communities and five land covers were identified within the 28.93-acre study
area. Vegetation communities present are Diegan coastal sage scrub (coastal sage scrub),
disturbed coastal sage scrub, eucalyptus woodland, native grassland, non-native grassland, and
riparian scrub (southern willow scrub and disturbed southern willow scrub). Unvegetated stream
channel and concrete-lined open channel are not considered vegetation communities but are
considered jurisdictional waters. Non-natural land cover types present are developed lands,
disturbed lands and ornamental. Within the study area, approximately 8.99 acres are within the
Coastal Zone, including areas mapped as coastal sage scrub (including disturbed coastal sage
scrub), native grassland, developed, disturbed lands, and ornamental.
Project impacts to sensitive uplands include 1.31 acres of coastal sage scrub (including disturbed
coastal sage scrub), 0.02 acre of native grassland and 0.11 acre of non-native grassland. Impacts
to jurisdictional areas include 0.40 acre of riparian scrub (southern willow scrub, disturbed
southern willow scrub), 0.10 acre of unvegetated stream channel and 0.02 acre of concrete-lined
channel. Proposed impacts to sensitive habitats within the Coastal Zone are limited to 0.35 acre
of coastal sage scrub and 0.02 acre of native grassland. Impacts to sensitive uplands and
jurisdictional areas are significant and would require mitigation. Impacts to -a total of 16.54 acres
of developed, disturbed lands, eucalyptus woodland and ornamental are not significant and
mitigation is not necessary.
Impacts to 0.96 acre of coastal sage scrub and 0.11 acre of non-native grassland outside of the
Coastal Zone will be mitigated at 1:1 and 0.5:1 ratios, respectively, through offsite habitat
preservation in a City of Carlsbad habitat mitigation bank. Impacts to 0.35 acre of coastal sage
scrub and 0.02 acre of native grassland within the Coastal Zone will be mitigated at 2:1 and 3:1
ratios, respectively, including habitat creation within the Coastal Zone at a 1:1 rafio. The
remaining component of mitigation for impacts to coastal sage scrub and native grasslands within
the Coastal Zone will be provided through habitat preservation in a City of Carlsbad habitat
mitigation bank.
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Impacts to 0.40 acre of riparian scrub, 0.10 acre of unvegetated stream channel and 0.02 acre of
concrete-lined channel will be mitigated at 3:1, 1:1 and 1:1 ratios, respectively, including habitat
creation at a minimum 1:1 ratio. The remaining component of mitigation for impacts to riparian
scrub will be provided through habitat preservation in a City of Carlsbad habitat mitigation bank.
Impacts to Cooper's hawk, other raptors, and other migratory bird species nests protected under
the Migratory Bird Treaty Act (MBTA) may be avoided by a) conducting vegetation clearing
outside of the January - September bird breeding season or b) having a qualified biologist
conduct a focused survey for bird nests not more than 72 hours prior to commencement of
vegetation clearing activities. If active nests are found, impacts (both direct and indirect) may be
avoided by ceasing construction within an appropriate buffer zone around the nest site until
juveniles have fledged and the nesting cycle is complete. A minimum of a 50-foot buffer and up
to a maximum of 300 feet for raptors will be determined by the project biologist.
Impacts to nesting Cooper's hawk, Dulzura California pocket mouse, and northwestern San
Diego pocket mouse, if present, will be mitigated through creation and/or preservation of riparian
scrub and eucalyptus woodland (Cooper's hawk), and coastal sage scrub and grassland (pocket
mice). Note that the loss of approximately 0.73 acre of potential Cooper's hawk nesting habitat
(0.33 acre eucalyptus woodland and 0.40 acre riparian scrub) would be mitigated through
creation or preservation of 1.20 acres of riparian habitat and preservation of 0.03 acre of
eucalyptus woodland.
In addition, impacts to 0.33 acre of eucalyptus woodland and 2.60 acres of disturbed lands will
be mitigated at a ratio of 0.1:1 at the Lake Calavera Mitigation Bank. Also, no sensitive,
including federally- or state-listed, plant or animal species, were observed or are expected to
occur on site. Therefore, no impacts to sensitive plant or animal species will occur and no
mitigation is required.
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1.0 INTRODUCTION
Existing and potential biological resources on the approximately 28.93-acre study area for the
proposed El Camino Real Road Widening Project were examined through field reconnaissance
and evaluation of the potential of habitat to support sensitive wildlife and plant species. The
purpose of this report is to provide a summary of biological resources in the study area, to
evaluate the significance of impacts of the proposed project upon these resources and to discuss
mitigation measures that could reduce these impacts to a less-than-significant level. This report
serves as the technical analysis of the project's biological resources impacts under the California
Environmental Quality Act (CEQA).
1.1 Project Description
The City of Carlsbad (City) proposes to improve the section of El Camino Real fi-om Tamarack
Avenue north to Chestnut Avenue. El Camino Real is a major north/south roadway serving as a
vital parallel circulation element to Interstate 5 (1-5) for the Cities of Encinitas, Carlsbad and
Oceanside. As various developments including subdivisions have occurred in the project vicinity,
developers have been required to widen El Camino Real to full prime arterial standards. This
section of roadway, fi-om Tamarack Avenue to Chestnut Avenue, is one of the few remaining
sections of El Camino Real that has not been widened to its full width of six travel lanes with
three northbound and three southbound lanes.
The proposed roadway improvements would result in a total width of 126 feet including 8-foot
bike lanes on both sides of the street, three southbound lanes of 12-foot width each, an 18-foot
wide landscaped median island, and three northbound lanes of 12-foot width each at the southern
and northern ends of the project. In the middle section of the roadway, the roadway would
transition between the previously discussed typical section to a modified width of 116 feet
including a 6 Y2 -foot bike lane on the west side of the roadway, three southbound lanes of 12 feet
width each, a 14-foot-wide landscaped median island, three northbound lanes of 11 Vi feet width
each, and a five-foot bike lane on the east side of the roadway. Parkways consisting of 5 '/S feet of
sidewalk and 4 Yi feet of native vegetation (including a bioswale) would be provided on each side
of the roadway resulting in a right-of-way width of 116 feet in this reach of the roadway. The
project proposes to keep the existing vertical profile of the road. Additional characteristics of the
proposed project are described below.
Storm Drain: Currently, the roadway in the project area exhibits erosion on the embankment on
the east side, pavement cracking and weathering, and bumps/sags. Storm water fi"om the storm
drains currently outlets at erosive velocities into a stream channel east of the roadway. Storm
drains within the project footprint would be replaced and/or improved. The project includes the
placement of erosion protection in the stream channel and/or construction of check dams within
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the ditch to remedy the issue. The pavement for the roadway would be overlaid with asphalt
concrete and/or replaced with a full stmctural section as necessary.
Brow ditches are proposed along the west side of El Camino Real to prevent hillside stormwater
from flowing over the sidewalk and onto El Camino Real. The proposed locations are at Stations
513+50 and 536+00. The sizes of the brow ditches would vary from approximately 12-inch
minimum depth to 24-inch maximum depth.
Lighting: Overhead lighting is proposed as part of the project. Lighting would be installed per
applicable City standards for wattage and spacing. Each lighting pole would produce up to
22,000 lumens and would be staggered at 300-foot intervals along both sides of the project
section of El Camino Real.
Bus Stop: The existing North County Transit District bus stop located on the west side of El
Camino Real just south of Chestnut Avenue would be relocated as part of the project, although
the specific location is in the process of being determined in concert with North County Transit
District. It is assumed that the chosen location would not be located outside of the project Area
of Potential Effects (APE).
Utilities: Depending on the availability of funding, the existing overhead power lines along the
west and east sides of El Camino Real may be undergrounded as part of the project. Should
funding be available at the time of construction, possibly as a joint cost sharing effort with
SDG&E, the City would imderground these electrical utilities. If a funding source for
undergrounding is not located, the existing power poles along the west side, north of APN 207-
090-20, Station 526+00, are proposed to be relocated 5 to 10 feet to the west. The relocation or
undergrounding of these poles is necessary to accommodate the proposed street widening.
Retaining Walls: Retaining walls are proposed on the west side of El Camino Real in the
approximate midpoint of the project area. The height of the retaining walls would vary between
six to 15 feet high maximum. The specific wall types would be Caltrans cast-in-place concrete or
masonry block cantilever with fascia for walls less than 10 feet in height. These have a concrete
spread footing and a vertical retaining face.
For walls over 10 feet in height, a tieback wall type would be implemented. This type of
retaining wall is an anchored wall system that relies on steel bars grouted into the retained slope
and a reinforced facing. The anchors are prestressed to provide an active clamping force. The
facing is typically constructed with reinforced shotcrete or cast-in-place concrete, and are
constructed with a "top-down" approach that does not require substantial excavation behind the
wall face.
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The retaining walls are proposed to be built with a boulderscape architectural treatment and
landscaping screening. Drainage systems would be included behind the walls to allow proper
drainage of the adjacent hillside.
Landscape Concept Plan: A Landscape Concept Plan has been prepared as part of the project to
provide a transition between the ornamental landscape and natural landscape on either sides of
the project reach of El Camino Real. The Landscape Concept Plan takes into account El Camino
Real's scenic corridor designation by incorporating a median landscape treatment that continues
adjacent median designs. The specific objectives of the design include low water use,
minimization of fire hazards, minimization of visual impacts of the proposed retaining walls, and
stabilization of disturbed slopes.
Staging Areas: Staging areas for temporarily storing construction equipment would be identified
during final design of the project, and would be located in previously paved areas within the
APE.
2.0 METHODS
2.1 Literature Review
Prior to the field investigation, a review of the existing biological resources within the vicinity of
the project site was conducted using California Department of Fish and Game (CDFG) (2005 a-
e) and the Inventoiy of Rare and Endangered Vascular Plants (California Native Plant Society
[CNPS] 2005). General information regarding wildlife species present in the region was obtained
from Unitt (1984, 2004) for birds. Bond (1977) for mammals, Stebbins (2003) for reptiles and
amphibians, and Emmel and Emmel (1973) for butterflies.
2.2 Field Reconnaissance
Dudek biologists Phil Behrends, Ph.D (PRB), David Flietner (DWF) and Kamarul Muri (KJM)
conducted general and focused biological surveys of the study area between January and
December, 2006. The surveys consisted of mapping vegetation communities, inventories of plant
and wildlife species observed, a jurisdictional wetlands delineation, focused surveys for the state-
and federally-listed endangered least Bell's vireo {Vireo bellii pusillus) and the federally-listed
threatened coastal California gnatcatcher {Polioptila californica californica), focused surveys for
sensitive plant species, a habitat assessment for the federally-listed endangered Pacific pocket
mouse {Perognathus longimembris pacificus), and a winter Monarch butterfly survey. Table J
lists the dates, conditions, and focus of these surveys.
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TABLE 1
Schedule of Surveys
DATE HOURS STA^ FOCUS CONOmONS
1/3/06 1100-1630 DWF,
KJM
Wetlands delineation, vegetation
mapping, plant inventory
0 - 30% cloud cover, 0 - 4 mph wind, 65 - 72° F
1/12/06 1100-1500 DWF,
KJM
Wetlands delineation, vegetation
mapping, plant inventory,
30% cloud cover, 2 - 5 mph wind, 68 - 70° F
1/13/06 1045-1200 DWF Wetlands delineation (west side) 0 - 70% cloud cover, 2 - 5 mph wind, 58 - 60° F
1/31/06 0830-1100 KJM Wildlife survey and habitat
assessment
0 - 20% doud cover, 1 - 3 mph wind, 58 - 63° F
3/22/06 1145-1330 DWF Additional mapping, [^ant inventofv 10% cloud cover, 3-8 mph wind, 65" F
3/30/06 0830-1000 KJM Gnatcatcher sun/ey 30 -100% cloud cover. 0 - 5 mph wind, 63 - 65° F
4/06/06 1000-1135 KJM Gnatcatcher survey 50 -100% doud cover, 0 - 5 mph wind, 60 - 65° F
4/13/06 0700 - 0830 KJM Gnatcatcher survey 0% doud cover. 0 - 3 mph wind, 45 - 61° F
4/13/06 0615-0700 KJM Vireo survey 0% cloud cover, 0 - 3 mph wind, 45 - 61° F
4/21/06 0645 - 0850 KJM Vireo survey 60 -100% doud cover. 0 - 2mph wind, 60 - 64° F
5/2/06 0630-0800 KJM Vireo survey 100% doud cover, 0 -1 mph wind. 62 - 64° F
5/11/06 0900-1030 KJM Vireo survey 100% doud cover, 0 -1 mph wind, 65 - 66° F
5/15/06 0500-0600 PRB Pacific Pocket Mouse Assessment Overcast, 0-3 mph wind
5/25/06 0600-0720 KJM Vireo survey 0% cloud cover. 0 mph wind, 57 - 58° F
6/7/06 0745 - 0845 KJM Vireo survey 100% doud cover (fog, drizzle), 0 mph wind, 67° F
6/20/06 0830-0930 KJM Vireo survey 100% doud cover, 0 mph wind, 69° F
7/6/06 0630-0735 KJM Vireo survey 100% doud cover, 0 -1 mph wind, 72° F
7/12/06 0915-1130 DWF Rare plant survey 0% cloud cover, 0 - 2 mph wind, 80 - 83° F
12/7/06 0900-1000 KJM Winter monarch butterfly survey 0% cloud cover, 0 mph wind. 59-60° F
2.2.1 Resource Mapping
Upland vegetation communities were mapped in the field directly onto a 200-scale (1" = 200')
color infrared aerial photograph flown in 2000 or a 100-scale color aerial photograph flown in
2005, both overlaid onto a surveyed topography map. The limits of riparian vegetation and
jurisdictional waters were mapped in the field using a Trimble Asset Surveyor v 5.26 Global
Positioning System (GPS) receiver with sub-meter accuracy; where access was difficult or GPS
data could not be obtained, jurisdictional waters were mapped directly onto the 200-scale aerial
photograph overlaid onto a topographic base map. The data were downloaded or digitized into a
Geographic Information Systems (GIS) coverage with surveyed topography and a February 2005
real color aerial photograph using ArcGIS software. The areas of vegetation communities and
lengths and areas of jurisdictional waters were calculated using the GIS sofhvare.
Upland plant community classifications used in this report follow the City of Carlsbad (2004)
Habitat Management Plan, except as noted. Wetlands communities and jurisdictional areas are
classified according to both the City of Carlsbad's classification and that of Holland (1986), with
modifications to include jurisdicfional definitions commonly used by wetlands regulatory agencies.
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^ 2.2.2 Flora
Plant species encountered during the field surveys were recorded, if they were identifiable at the
time of the survey. Latin and common names of plants follow The Jepson Manual (Hickman,
^ 1993) or more recent published taxonomic revisions of genera. Where not listed in Hickman
(1993), common names are taken from Simpson and Rebman (2002) and Roberts (1998). A
cumulative list of plant species observed in the study area is presented in Appendix A.
•m
^ The focused survey for sensitive plant species was conducted on July 12, 2006, during the
blooming period of San Diego ambrosia {Ambrosia pumila), Del Mar Mesa sand aster
" (Corethrogyne fdaginifolia var. linifolia), and decumbent goldenbush (Isocoma menziesii var.
decumbens\ all plants considered to have a moderate or high potential to occur on site. All
^ suitable habitat was surveyed on foot.
" 2.2.3 Fauna
Wildlife species detected during the field surveys by sight, calls, tracks, scat, or other signs were
recorded. Binoculars were used to aid in the identification of observed wildlife. In addition to
•» species actually detected, expected wildlife use of the site was determined by known habitat
g» preferences of local species and knowledge of their relative distributions in the area. A list of
wildlife species observed on the property is presented in Appendix B.
mm
Latin and common names of animals follow Stebbins (2003) for reptiles and amphibians,
American Ornithologists' Union (2006) for birds, Jones et al. (1997) for mammals, and Emmel
and Emmel (1973) for butterflies.
Mr. Muri (TE-051250-1) conducted focused surveys for the least Bell's vireo and California
^ gnatcatcher. Focused surveys for least Bell's vireo were conducted in accordance with current
U.S. Fish and Wildlife Service (USFWS) (2001) guidelines. The focused survey for least Bell's
vireo included eight surveys between April 10 and July 31, with a minimum 10-day interval
m between surveys.
Focused surveys for Califomia gnatcatcher were conducted in accordance with current USFWS
*• (1997) guidelines. Surveys consisted of walking a meandering transect through appropriate
^ habitat on the site. While walking the transect, taped gnatcatcher vocalizations were played
^ approximately every 40 to 50 feet. Binoculars (10 X 50) were used to aid in detecting and
identifying gnatcatchers and other birds.
IK Phil Behrends, Ph.D, (TE 031287-6) conducted a habitat assessment for Pacific pocket mouse on
May 15,2006.
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m 2.2.4 Jurisdictional Wetlands Delineation
Mr. Flietner and Mr. Muri conducted a routine jurisdictional delineation of waters of the United
States, including wetlands, under the jurisdiction of the U.S. Army Corps of Engineers (ACOE)
and the Califomia Regional Water Quality Control Board (RWQCB), and waters of the State,
including riparian areas and wetlands, under the jurisdiction of the Califomia Department of Fish
and Game (CDFG) and Califomia Coastal Commission (CCC).
The jurisdictional wetlands delineation was conducted in accordance with the Corps of Engineers
Wetlands Delineation Manual (TR Y-87-J) (ACOE 1987); hydrology, vegetation, and soils were
examined at potential wetland sites. Munsell Soil Color Charts were used to determine soil
chroma and value. The wetlands indicator status of the plant species was determined by using the
National List of Plant Species that Occur in Wetlands: California (Region 0) (Reed 1988). Non-
wetland jurisdictional waters of the U.S. were determined by observation of the ordinary high
water mark. Areas under jurisdiction of the RWQCB were determined by the presence of
hydrology indicators; these areas are generally coincident with waters of the U.S., but may also
include isolated waters not under ACOE jurisdiction.
Waters of the State under the jurisdicfion of the CDFG were mapped based on the presence of
one of three ACOE criteria (primarily vegetation) in association with a stream channel. Wetland
determinations were made at 19 sampling points (data stations) to determine whether
jurisdictional waters, including wetlands were present. Areas of similar vegetation composition
and topography were assumed to be under the same jurisdictions. The wetland determination
forms for these data stafions are included in Appendix C. To determine whether the waters on site
were isolated, and thus not under ACOE jurisdiction, the stream channel was observed
downstream and offsite. The limits of jurisdictional wetlands, as defined by the CCC, were
determined by the presence of one of the three ACOE wetlands criteria, pursuant to the
provisions of the Califomia Coastal Act.
The dimensions of wetlands and non-wetland jurisdictional areas (i.e., incised channels with no
wetland vegetation) were recorded in the field with a GPS receiver with sub-meter accuracy. The
data were downloaded into a GIS coverage using ArcGIS software and used to calculate stream
m lengths and areas.
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2.2.5 Sensitive/Regulated Biological Resources
Sensitive biological resources are those defined as follows: (1) species that have been given
special recognition by federal, state, or local regulatory agencies due to limited, declining, or
threatened population sizes; (2) species and habitat types recognized by local and regional
resource agencies as sensifive; (3) habitat areas or vegetation communities that are unique, are of
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relatively limited distribution, or are of particular value to wildlife; (4) jurisdictional waters,
including wetlands; and (5) wildlife corridors and habitat linkages. Regulated biological
resources may or may not be considered sensifive, but are regulated under local, state, and/or
federal laws. Sources used for determination of sensitive biological resources are as follows:
wildlife, Carisbad (2004), CDFG (2005b and d), and USFWS (2005); plants, Carlsbad (2004),
CDFG (2005c and e), and CNPS (2001); habitats, Carisbad (2004) and Holland (1986);
jurisdictional waters, ACOE (1987) and methods described above; and wildlife corridors,
Carlsbad (2004). An explanation of resource sensifivity categories is provided as Appendix D.
2.3 Survey Limitations
Plant surveys were conducted in winter and early summer; most plant species would have been
detected, with the potential excepfion of early-blooming spring annuals. The surveys were
conducted during a year with below-average rainfall, and some plant species may not have
germinated or grown large enough to be recognizable.
Wildlife surveys were conducted in winter, spring, and early summer, and most diurnal resident
and spring migratory species would have been detected.
Surveys were conducted during the daytime to maximize visibility for the detection of plants and
most animals. Birds represent the largest component of the vertebrate fauna, and because they are
active in the daytime, diurnal surveys maximize the number of observations of this portion of the
fauna. In contrast, daytime surveys usually result in few observations of mammals, many of
which may be active at night. In addifion, many species of reptiles and amphibians are nocturnal
or cryptic in their habits and are difficult to observe using standard meandering transects.
3.0 PHYSICAL CHARACTERISTICS
3.1 Site Description
3.1.1 Project Location and Regional Setting
The El Camino Real Road Widening Project is located in the northeastem part of the City of
Carlsbad, California {Figure /). The 28.93-acre study area extends south from Chestnut Avenue
at an elevation of approximately 300 feet above mean sea level (AMSL), to Tamarack Avenue, at
approximately 70 feet AMSL in the southeast. This portion of El Camino Real is situated in a
small canyon between northwest-southeast trending hills. The site is located on the U.S.
Geological Service (USGS) 7.5 minute San Luis Rey quadrangle map in projected sections 4, 5
and 9; Township 12 South, Range 3 West (Figure 2). An isolated, intermittent blue line stream
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Biological Resources Technical Report
El Camino Real Road Widening Project
was mapped in the study area, running parallel and east of El Camino Real and dissipating into
the valley extending southward toward Agua Hedionda.
The project's Area of Potential Effects (APE) is that part of the 28.93-acre study area within
which potential environmental impacts would occur including construction related and potential
long term effects. The APE is approximately 18.50 acres for the El Camino Real Road Widening
Project, and is displayed in Figures 4 through 4D later in this report.
The APE lies within the Habitat Management Plan for Natural Commimities in the City of
Carlsbad (HMP) plan area. The southwestern portion of the APE is within the Coastal Zone and
subject to applicable provisions of the HMP, which includes conservation measures required by
the CCC (see Figure 2).
3.1.2 On-Site and Surrounding Land Uses
The APE includes El Camino Real, a heavily-trafficked four-lane roadway, adjacent undeveloped
land, and portions of intersecting streets. Residential development surrounds the APE, except for
agricultural lands that extend to the east fi-om the southern end of the APE.
3.1.3 Soils
Two soil types dominate the APE: Gaviota fine sandy loam, 30 to 50 percent slopes in the
northern half of the area, and Salinas clay loam, 2 to 9 percent slopes in the southeast. The
periphery of the APE (i.e., the tops of the slopes) contains, fi-om north to southeast, small
inclusions of Marina loamy coarse sand, 2 to 9 percent slopes; Carlsbad gravelly loamy sand, 15
to 30 percent slopes; and Las Flores loamy fine sand, 15 to 30 percent slopes, eroded. These
latter three soil types are considered to provide substrates for sensitive plant taxa associated with
southern maritime chaparral.
Gaviota fine sandy loam soils are shallow soils formed fi-om weathered marine sandstone. The
topsoil is about 16 inches deep over rock and brown to yellowish-brown in color. Gaviota loamy
coarse sand, 2 to 9 percent slopes is moderately permeable and has medium to high runoff.
Gaviota soils are classified as Entisols (Lithic Haploxeralf) (Bowman 1973). Gaviota loamy
coarse sand, 2 to 9 percent slopes is not listed as a hydric soil (National Resource Conservation
Service [NRCS] 2005).
Mft
DUDEK 8 September 2007
Orange
County
Project Site
San Diego
m
m
El Camino Real Widening Project - Biological Resources Report
Regional Map
FIGURE
m
beware ilg;^-
SOURCE: USGS, 7.5 Minute Series, San Luis Rey Quadrangle
COASTALZONESOURCE: CityVf Carlsbad ... 00 1,000 2,000
^^^K=3Feet
El Camino Real Widening Project - Biological Resources Report
Vicinity Map
FIGURE
Ml
m
Biological Resources Technical Report
El Camino Real Road Widening Project
Salinas soils are clay loams derived frorn sediments washed from other soils. The dark gray-
brown topsoil is neutral to mildly alkaline, with increasing alkalinity at greater depth. In some
areas, the surface layer is clay. Salinas clay loam, 2 to 9 percent slopes has slow to medium
runoff, and is moderately well-drained. Salinas soils are classified as a Mollisol (Calcic Pachic
HaploxeroU) (Bowman 1973). Salinas clay loam 2 to 9 percent slopes is not listed as a hydric
soil, although Salinas clay loam 0 to 2 percent slopes and Salinas loam 2 to 9 percent slopes are
so listed (NRCS 2005).
Marina loamy coarse sand, 2 to 9 percent slopes form on old beach ridges from iron-rich
windblown sands. These very deep soils are composed of loamy coarse sands through almost the
entire profile and are rapidly permeable and excessively drained (Bowman 1973).
Carlsbad gravelly loamy sand, 15 to 30 percent slopes is derived from soft iron-rich sandstone
weathered in place. The brown to pale brown surface layer and heavy loamy sand subsoil overlay
a moderately deep, weakly cemented iron-silica hardpan. Carlsbad soils are classified as
Inceptisols (Haplic Durochrepts) (Bowman 1973). Carisbad gravelly loamy sands are not listed
as hydric soils (NRCS 2005).
Las Flores loamy fine sand, 15 to 30 percent slopes, eroded are formed by the weathering of
silica-rich marine sandstone and consists of loamy fine sand topsoil, a sandy clay subsoil, and a
loamy coarse sand layer above the decomposing sandstone (Bowman 1973).
4.0 RESULTS OF SURVEY
4.1 Botany ~ Vegetation Communities and Floral Diversity
Five vegetation communities and five land covers were identified on site. Vegetafion
communities present are Diegan coastal sage scrub (coastal sage scrub), disturbed coastal sage
scrub, eucalyptus woodland, native grassland, non-native grassland, and riparian scrub (southern
willow scrub and disturbed southern willow scrub). Unvegetated stream channel and concrete-
lined open charmel are not considered vegetation communities but are considered jurisdictional
waters. Non-natural land cover types present are developed lands, disturbed lands and
ornamental. Vegetation communities and land covers are described below, their acreages are
presented in Table 2, and their locations are shown in Figures 3, 3A through 3D.
4926-01
DUDEK 11 September 2007
Biological Resources Technical Report
El Camino Real Road Widening Project
TABLE 2
Vegetation Communities and Land Covers
m
VEGETATION C0M»Uf«7Y/ LAND COVER TYPE ACREAGE
Native Uplands
Coastel sage scrub 4.27
Native Uplands Coastai sage scnib-disturbed 0,86 Native Uplands Native grassland 0.45 Native Uplands
Native grassland-disturbed 0.14
Jurisdictionai
Wetlands/Waters
Rtpaian scaib (Southern virillovif scrub] 0.07
Jurisdictionai
Wetlands/Waters
Riparian scrub (Southern wiliov^ scmb) CDFG only 0.61 Jurisdictionai
Wetlands/Waters Ripwian scrub (Southern vifillovi; scrub-disturbed) CDFG only 0.11 Jurisdictionai
Wetlands/Waters Unvegetated stream channel 0.44
Jurisdictionai
Wetlands/Waters
Concrete-lined channel 0.03
Non-native
Land Covers
Non-native grassland 0.38
Non-native
Land Covers
Developed 13.19 Non-native
Land Covers Disturbed lands 6.23 Non-native
Land Covers Euc^yptus woodland 1.40
Non-native
Land Covers
Ornamental 0.78
TOTAt^ 2193
1 Holland (1986) nomenclature e^^Ftes to wetlands and riparian communities.
^ Aoeage is given to the hundredths place because of the greater accuracy of marking for jurisdictional areas.
3 Total may not sum precisely due to rounding.
4.1.1 Coastal Sage Scrub (including disturbed)
Diegan coastal sage scrub (coastal sage scrub) is characterized by drought-deciduous shrubs and
subshrubs that often occur on dry south-facing slopes or on clay-rich soils that are slow to release
stored water. Their leaves function mostly in the winter and early spring, with many plants being
drought-deciduous. Characteristic species include Califomia sagebrush {Artemisia californica),
California buckwheat {Eriogonum fasciculatum), sages {Salvia spp.) lemonadeberry (Rhus
integrifolia) and laurel sumac (Malosma laurina). A diverse understory of annual and perennial
grasses and herbs is typically present (City of Carlsbad 2004).
Coastal sage scrub occurs primarily on east-facing slopes on the west side of El Camino Real and
between El Camino Real and the stream channel on the east side. Lemonadeberry and black sage
are typically the dominant species in these areas, with Califomia encelia {Encelia californica),
Califomia sagebrush, and laurel sumac important components on the slopes west of El Camino
Real. Coyote bush (Baccharis pilularis) is also common in places on the eastern side of El
Camino Real. Smaller areas of flat or west-facing coastal sage scmb are dominated by Califomia
sagebmsh; these areas also contain non-native grasses and sweet fennel {Foeniculum vulgare).
12
4926-01
September 2007
• Itllllliftllllllltlillllllllllliitlll
i Study Area
A.
I feet
0 r- 250..:. 500
BASE SOURCE: Berryman & Henigar, December 2005 APE: December 2006
El Camino Real Widening Project - Biological Resources Report
Biological Resources Index Map
FIGURE
TOPO SOURCE: Berryman & Henigar, December 2005
•''K*'' Study Area
Coastal Zone Boundary
• Data Station
0 Feet
VEGETATION TYPES/LANDCOVERS:
C3 AGL: Annual Grassland
(Xi CSS: Coastal Sage Scrub
dCSS: disturbed Coastal Sage Scrub
(XJ DEV: Developed
(Xi DH: Disturbed Habitat
(X5 EUC: Eucalyptus Woodland
(X3 NGL: Native Grassland
03 dNGL: disturbed Native Grassland
C3 ORN: Ornamental
C3 SWS: Southern Willow Scrub
C3 SWS_C: Southern Willow Scrub (CDFG only)
C3 dSWS_C: disturbed Southern Willow Scrub (CDFG only)
Jurisdictional Waters of the U.S./State
—Ephemeral Waters
Ephemeral Waters (concrete-lined)
—•— Intermittent Waters
——• Intermittent Waters (concrete-lined)
Note: Number indicates width of channel
segment between marks.
0 40 80
El Camino Real Widening Project - Biological Resources Report
Biological Resources Map
FIGURE
3A
TOPO SOURCE: Berryman & Henigar, December 2005
/\/ Study Area
Coastal Zone Boundary
• Data Station
0 Feet
40 80
VEGETATION TYPES/LANDCOVERS:
03 AGL: Annual Grassland
C3 CSS: Coastal Sage Scrub
C3 dCSS: disturbed Coastal Sage Scrub
C3 DEV: Developed
C3 DH: Disturbed Habitat
Q3 EUC: Eucalyptus Woodland
Q3 NGL: Native Grassland
C3 dNGL: disturbed Native Grassland
C3 Of^N: Ornamental
C3 SWS: Southern Willow Scrub
C3 SWS_C: Southern Willow Scrub (CDFG only)
C3 dSWS_C: disturbed Southern Willow Scrub (CDFG only)
Jurisdictional Waters of the U.S./State
—— Ephemeral Waters
—— Ephemeral Waters (conaete-lined)
—— Intennittent Waters
——• Intermittent VVaters (concrete-lined)
Note: Number indicates width of channel
segment between marks.
El Camino Real Widening Project - Biological Resources Report
Biological Resources Map
FIGURE
3B
TOPO SOURCE: Berryman & Henigar, December 2005
/*V* Study Area
/S^ Coastal Zone Boundary
• Data Station
Feet
0 40 80
VEGETATION TYPES/LANDCOVERS:
Q3 AGL: Annual Grassland
03 CSS: Coastal Sage Scrub
C3 dCSS: disturbed Coastal Sage Scrub
(X5 DEV: Developed
C3 DH: Disturbed Habitat
C3 ^^C- Eucalyptus Woodland
C3 NGL: Native Grassland
C3 dNGL: disturbed Native Grassland
C3 ORN: Ornamental
C3 SWS: Southern Willow Scrub
C3 SWS_C: Southern Willow Scrub (CDFG only)
C3 dSWS_C: disturbed Southern Willow Scrub (CDFG only)
Jurisdictional Waters of the U.S./State
—Ephemeral Waters
—— Ephemeral Waters (concrete-lined)
—— Intermittent Waters
—— Intermittent Waters (concrete-lined)
Note: Number indicates width of channel
segment between marks.
El Camino Real Widening Project • Biological Resources Report
Biological Resources Map
FIGURE
3C
EUC
J
TOPO SOURCE: Berryman & Henigar, December 2005
/\/Study Area
• Data Station
Feet
0 40 80
VEGETATION TYPES/LANDCOVERS:
Q3 Annual Grassland
Q3 CSS: Coastal Sage Scrub
Q3 dCSS: disturbed Coastal Sage Scrub
C3 DEV: Developed
C3 DH: Disturbed Habitat
03 Eucalyptus Woodland
Q3 NGL: Native Grassland
Q3 dNGL: disturbed Native Grassland
Q3 ORN: Ornamental
Q3 SWS: Southern Willow Scrub
03 SWS_C: Southern Willow Scrub (CDFG only)
03 dSWS_C: disturbed Southern Willow Scrub (CDFG only)
Jurisdictional Waters of the U.S./State
Ephemeral Waters
—•—• Ephemeral Waters (concrete-lined)
—— Intermittent Waters
-— Intermittent Waters (concrete-lined)
Note: Number indicates width of channel
segment between marks.
El Camino Real Widening Project - Biological Resources Report
Biological Resources Map
FIGURE
3D
Biological Resources Technical Report
El Camino Real Road Widening Project
Disturbed coastal sage scrub is defined as areas containing at least 20 percent cover of native
coastal sage scrub vegetation but over 50 percent non-native plant cover. Disturbed coastal sage
scrub includes the native species listed above, particularly coyote bush and black sage, but
contains abundant pampas grass {Cortaderia selloana), sweet fennel, black mustard (Brassica
nigra) and other invasive non-native species. Although disturbed coastal sage scrub is mapped
separately to provide an accurate representation of the project, for the purpose of analyzing
significance of impacts, it is combined with undisturbed coastal sage scrub.
4.1.2 Native Grassland (including disturbed)
Native grassland (i.e., valley needlegrass grassland) is dominated by purple needlegrass {Nassella
pulchra), a tussock-forming perennial grass that reaches about two feet in height. It usually
occurs on fine-textured soils that are moist or wet in winter, becoming very dry in summer. On
moister sites it ofi;en occurs among oak woodlands. Native annuals and grasses and non-native
grasses, such as bromes {Bromus spp.) and wild oats, occur between the bunchgrasses, often
forming most of the vegetative cover (Holland 1986). Native grassland is typically mapped when
puiple needlegrass exceeds ten percent cover.
The east-facing slopes on the west side of El Camino Real support three patches of native grassland.
Purple needlegrass and wild oat {Avena harbata) are the dominant grasses with purple needlegrass
providing up to an estimated 60 percent of the vegetation cover. The southernmost patch of grassland
west of El Camino Real is mapped as disturbed native grassland, because the grasses have been cut at
the time of the summer survey; the purple needlegrass cover is estimated at 25 percent in this habitat.
4.1.3 Riparian Scrub
Riparian scrub includes both natural and semi-disturbed wetland communities found along rivers
and seasonal drainages, including southern willow scrub, mule fat scrub, and baccharis/tamarisk
scrub. Dominant species in riparian scrub include willows {Salix spp.), Fremont cottonwood
{Populus fremontii) and mule fat {Baccharis salicifolia). The density of understory vegetation
depends on the tree canopy, but it may include poison oak {Toxicodendron diversilobum), desert
grape {Vitis girdiana) and western ragweed (Ambrosiapsilostachya).
Riparian scrub on site consists of southern willow scrub and disturbed southern willow scrub.
Arroyo willow is the dominant species in southern willow scrub on site, with a few mule fat
present and usually no native understory vegetation. Non-native species, particularly pampas
grass and sweet fennel, may be present in the understory. Areas of riparian scrub with greater
than 50 percent non-native cover are mapped as disturbed southern willow scrub.
4926-01
DUDEK 18 September 2007
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El Camino Real Road Widening Project
4.1.4 Unvegetated Stream Channel
Unvegetated stream channel typically describes ephemeral or intermittent stream channels with
limited vegetation or that lack vegetation entirely. Ephemeral stream chaimels flow only briefly
following rain events, whereas intermittent stream channels may include groundwater as a source
of flows in addition to surface flows fi-om surrounding areas. Unvegetated stream channel is
mapped for the stream chaimel that runs the length of the study area along the eastern side of El
Camino Real, as well as for small tributary streams. The main charmel has a sandy bottom, varies
fi-om three to ten feet wide, and is unvegetated. Most of the chaimel flows through areas mapped
as upland; where riparian vegetation occurs along the channel it generally occurs above the
ordinary high water mark. The main charmel is considered an intermittent stream channel as the
presence of riparian vegetation in association with the stream charmel suggests that groundwater
or sufficiently fi-equent surface flows occur. A small tributary draining off the slope to the east of
the main channel is considered ephemeral.
4.1.5 Concrete-lined Channel
Concrete-lined chaimels are brow ditches and other concrete-lined structures that supply water to
the unvegetated stream channel or riparian vegetation in the study area. The brow ditches on the
east side of El Camino Real convey water fi-om upper slopes into the natural channel. On the
west side of El Camino Real, a brow ditch conveys water north into a small stream that flows
into southern willow scrub. The brow ditch, concrete headwall, and pipe beneath Tamarack
Avenue are also mapped as concrete-lined channel.
4.1.6 Developed
Developed areas have been graded or built upon. El Camino Real, Tamarack Avenue, Chestnut
Avenue, paved driveways and private roadways, and a cement berm adjacent to El Camino Real
are mapped as developed.
4.1.7 Disturbed Lands
Disturbed lands refer to land that is repeatedly, or has been permanently, altered by previous
human activity and to areas dominated by invasive exotic vegetation. Native or naturalized
vegetation is no longer present and the land lacks habitat value for sensitive wildlife. Disturbed
land is mapped for areas that lack vegetation entirely as the result of repeated plowing, recent
eucalyptus cutting, or use for parking; dense stands (90-100 percent cover) of non-native weedy
species that typically result fi-om past disturbance; and for the linear strips adjacent to either side
of El Camino Real that support only sparse armual weeds, presimiably as a result of repeated
roadside weed control activities. Large areas of ruderal vegetation in the eastern part of the site
r-k • I rv r- IX 4926-01
P U D C K 19 September 2007
Biological Resources Technical Report
El Camino Real Road Widening Project
are dominated by Italian thistle (Carduus pycnocephalus) or black mustard, other non-native
species in disturbed lands include pampas grass, ice plant (Carpobrotus edulis), artichoke thistle,
and fennel. These species usually occur in monotypic stands on site.
4.1.8 Eucalyptus Woodland
Eucalyptus woodland is a non-native vegetation type dominated by various species of planted
eucalyptus (Eucalyptus spp.), usually with a poorly developed or absent understory. Raptors and
other birds often nest and bats often roost in eucalyptus woodland (City of Carlsbad 2004).
Eucalyptus woodland is composed predominantly of blue gum {E. globulus) trees with or without
understory vegetation. Where it occurs near the stream channel to the east of El Camino Real,
understory vegetation is typically lacking beneath the dense canopy. Beneath the more open
canopy on the slopes along the eastern edge of the site, non-native grasses and, occasionally,
fennel, jade (Crassula argentea) or non-native plants are in the understory.
4.1.9 Non-native Grassland
Non-native grassland contains wild oats and bromes, and other non-native annual grasses, as well
as annual native herbs, such as telegraph weed (Heterotheca grandijlora) and fascicled tarweed
(Deinandra fasciculata), and non-native herbs, such as black mustard and tocalote (Centaurea
melitensis). Non-native grasslands may support raptor foraging and sensitive plant species (City
of Carlsbad 2004).
Non-native grassland on site is dominated by Afiican fountain grass (Pennisetum setaceum), with
non-native plants such as black mustard, Italian thistle, tocalote, sweet fennel, and weedy native
aimuals herbs such as horseweed (Conyza canadensis) also common. A patch of saltgrass
(Distichlis spicata), a rhizomatous native grass, is also included as part of this vegetation type.
4.1.10 Ornamental
Ornamental is a vegetation type not considered as a habitat type within the City of Carlsbad
(2004) nor as a distinct vegetation community by Holland (1986). It is included in this report as a
non-natural land cover to distinguish areas occupied by ornamental trees, including pines (Pinus
spp.) and Peruvian pepper (Schinus molle) and groundcovers, such as hottentot-fig. Ornamental
vegetation occurs primarily on the west side of the study area near off-site residences. Included in
this mapping is a small patch of arroyo willow (Salix lasiolepis), with an understory of garden
nasturtium (Tropaeolum majus), Indian-fig (Opuntia ficus-indica) and other non-native species.
The willows are not associated with a stream channel and apparently are maintained by runoff
fi-om irrigated yards of the uphill residences.
DUDEK 20 September 2007
Biological Resources Technical Report
El Camino Real Road Widening Project
Blue gum trees, though also a type of planted ornamental tree, are mapped as eucalyptus
woodland as described above.
4.1.11 Floral Diversity
A total of 85 species of vascular plants, 43 native (51 percent) and 42 non-native (49 percent),
have been noted on site (Appendix A). The site likely supports a greater diversity of annual plant
species than would be apparent during the spring and summer. The high proportion of the
vegetation cover provided by non-native plants, however, reflects the high level of disturbance
and edge effects in this long narrow parcel of undeveloped land within an urban setting.
4.2 Zoology - Wildlife Diversity
Thirty-eight wildlife species were observed during the wildlife reconnaissance and focused bird
surveys (Appendix B). The wildlife recorded during these surveys generally were common
species typically encountered in human-altered environments.
4.2.1 Reptiles and Amphibians
The western fence lizard (Sceloporus occidentalis) was the only reptile species observed. Other
common species that may occur include side-blotched lizard (Uta stansburiana), southem alligator
lizard (Gerrhonotus multicarinatus), and gopher snake (Pituophis melanoleucus), among others.
No amphibian species were observed during the survey. The stream and riparian areas may
support species such as Pacific treefi-og (Hyla regilla) and western toad (Bufo boreas).
4.2.2 Birds
Thirty-one bird species were observed during the survey, including common, human-adapted
species such as Califomia towhee (Pipilo crissalis), mourning dove (Zenaida macroura), wrentit
(Chamaea fasciata), western scrub-jay (Aphelocoma californica), lesser goldfinch (Carduelis
psaltria), Anna's hummingbird (Calypte anna), and house sparrow (Passer domesticuis). Two
common raptor species, red-tailed hawk (Buteo jamaicensis) and red-shouldered hawk (B.
lineatus), were recorded. Bird species observed in riparian habitats include Pacific-slope
flycatcher (Empidonax difficilis), Nuttall's woodpecker (Picoides nuttallii), warbling vireo (Vireo
gilvus), yellow-rumped warbler (Dendroica coronata), and Wilson's warbler (Wilsoniapusilla).
4.2.3 Mammals
Five common mammal species were noted on the site: Virginia opossum (Didelphis virginica),
brush rabbit (Sylvilagus bachmani), Califomia ground squirrel (Spermophilus beecheyi), woodrat
r% 1 • rN r- 4926-01
DUDEK 21 September 2007
Biological Resources Technical Report
El Camino Real Road Widening Project
(Neotoma sp.), and coyote (Canis latrans). Other common mammals that may occur include
raccoon (Procyon lotor), Botta's pocket gopher (Thomomys bottae), and striped skunk (Mephitis
mephitis), as well as a variety of small mice species.
4.2.4 Invertebrates
One invertebrate species was recorded: checkered white butterfly (Pontia protodice). Other
common butterflies are expected to occur, such as morning cloak (Nymphalis antiopa), acmon
blue (Plebejus acmon), and west coast lady (Vanessa annabella).
4.3 Sensitive Biological Resources
4.3.1 Sensitive Plant Species
Table 3 includes a list of sensitive plant species known to occur in Carlsbad or in the surrounding
area and their potential to occur on site. Because of the general level of disturbance of the study
area, the urbanized setting, and the lack of southem maritime chaparral vegetation, few sensitive
plant species have potential to occur on site. Directed surveys were conducted for three sensitive
plant species considered to have a moderate potential to occur: HMP narrow endemic (NE) Del
Mar Mesa sand aster (Corethrogyne filaginifolia var. iinifolia); NE and federally listed
endangered San Diego ambrosia (Ambrosiapumila); and CNPS List IB decumbent goldenbush
(Isocoma menziesii var. decumbens). The surveys did not detect these species and no sensitive
plant species are therefore considered to occur on site.
TABLE 3
Sensitive Plant Species Detected or Potentially Occurring on the Project Site
SCIENTIFK:
NAME
COMMON
HAm
STATUS
FEDERAU
STATEf
LOCAL
CNPS
UST
PRIMARY HABITAT ASSOCIATIONS
LIFE FORM/ BLOOMING PERIOD
STATUS ON SITE OR
POTENTIAL TO OCCUR
Acanthomintha
Hicifolia
San Diego
thommint
FT/SE/
HMPNE 1B.1
Chaparral, coastal scrub, valley and
foothill grassland, vernal pools; clay/
annual herb/April-June
Appropriate day soils not
present. Low potential.
Adolphia
californica
California
adolphia
None/
None/
None
2.1
Chapan-al, coastal scrub, valley and
foothill grassland; clay/ shrub/
December-May
Appropriate clay soils not
present; easily detected
perennial shrub would have
been observed if present.
Ambrosia pumila San Diego
ambrosia
FE/None/
HMPNE 1B.1
Chapan-al, coastal scrub, valley and
foothill grassland, vernal pools; often In
disturbed areas/ perennial herb/ May -
October
Suitable habitat present,
although not known to occur
in Carisbad. Moderate
potential. Not detected during
focused survey.
DUDEK 22
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September 2007
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TABLES
Sensitive Plant Species Detected or Potentially Occurring on the Project Site
sciErrriFic
NAME
ccmai
NAMT^
STATUS
FB)BRAU
SfAtE£=
LOCAL
CNPS
UST
PRHU^ HABITAT ASSOCIATIONS/
LIFE FOAHtf BtOOHHNG PERIOD
STATUS ON SITE OR
POTSmAL TO OCCUR
Arctostaphytos
glandulosa ssp.
crassifblia
Del Mar
manzanita
FE/None/
HMPNE 1B.1 Maritime chapan'al; sandy/ shrub/
December-April
No suitable habitat; large,
woody shnib would have
been observed if present.
Astragalus tener
var. titi
Coastal
dunes milk-
vetch
FE/SE/
None 1B.2 Coastal bluff scrub, coastal
dunes/annual herb/March-May
No suitable habitat. Not
expected.
Atriplex pacifica
South
Coast
saitscale
None/
None/
None
1B.2
Coastal bluff scrub, coastal dunes,
coastal scrub, playas/ annua! herb/
March-October
No suitable habitat. Not
expected.
Baccharis
vanessae
Encinitas
baccharis
FT/SE/
HMPNE 1B.1
Chaparal, dsmontane woodland;
sandstone/ deciduous shrub/ August-
November
No suitable habitat Not
expected.
Brodiaea filifolia
TTiread-
leaved
brodiaea
FT/SE/
HMPNE 1B.1
Chaparral (openings) coastal scrub,
cismontane woodland, playas, valley
and foothill grassland, vernal pools;
often day/ bulbiferous herb/ March-
June
Suitable soils lacking. Not
expected.
Brodiaea orcuttH Orcutfs
brodiaea
None/
None/HMP
NE
1B.1
Closed-cone conifer forest, chaparral,
cismontane woodland, meadows and
seeps, valley and foothill grassland,
vernal pools; mesic, day, sometimes
serpentine/ bulbiferous heriD/ May-July
Appropriate habitat and soils
not present. Not expected.
Camissonia
lewisii
Lewis's
evening
primrose
Uonel
None/
None
3
Coastal bluff scrub, dsmontane
woodland, coastal dunes, coastal sage
scmb, valley and foothill grassland,
sandy or day soils/ annual herb/ March-
June
Outside of known (coastal)
range. Low potential.
Ceanothus
venvcosus
Wart-
stemmed
ceanothus
None/
None/
HMP
2.2 Chaparral/ shrub/ December-April
No suitable habitat. Easily
detected perennial shrub
would have been observed if
present.
Centromadia
[Hemizonia]
panyi spp.
australis
Southem
tarplant
None/
None/
None
1B.1
Marshes and swamps (margins), valley
and fooMl grassland (vemally mesic),
vernal pools/ annual herb/ May-
November
No suitable habitat. Not
expected.
Centromadia
[Hemizonia]
pungens ssp.
laevis
Smooth
tarplant
None/
None/
None
1B.1
Chenopod scrub, meadows and seeps,
playas, riparian woodland, valley and
foothill grassland; alkaline/ annual herbl
April-September
No suitable habitat or soils.
Not expected.
Chaenactis
glabriuscula var.
orcuttiana
OrcutTs
pincushion
None/
None/
None
1B.1 Coastal bluff scrub, coastal dues;
sandy/annual hert)/Jan-Aug
No suitable habitat or soils.
Not expected
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I TABLE 3
Sensitive PJant Species Detected or Potentially Occurring on the Project Site
SCIENTIFIC
NAME
COMMON
NAME
STATUS
FEDBUU
STATer-
LOCAL
CNPS
LIST
PRIMARY HAG^^ASSOCIATIONSr
LIFE FORMf I^OMiNQ PERIOD
STATUS ON SITE OR
POTENTIAL TO OCCUR
Chorizanthe
orcuttiana
Orcutt's
spineflower
FE/SE/
HMPNE 1B.1
Maritime ch^arral, dosed-cone conifer
forest, coastal scrub/ annual herb/
March-May
Habitat Is marginal and
disturbed. Low potential.
Chorizanthe
polygonoides
var. longispina
Long-
spined
spineflower
None/
None/
None
1B.2
Chaparral, coastal scrub, meadows and
seeps, valley and foothill grassland;
often clay/ annual heris/ April-July
No suitable soils. Not
expected.
Comarostaphylis
diversifolia ssp.
diversifolia
Summer
holly
None/
None/HMP 18.2 Chapan'al, cismontane woodland/
shrub! April-June
No suitable habitat. Easily
detected large, woody shmb
wouki have been observed if
present
Coreopsis
maritima Sea dahlia
None/
None/
None
2.2 Coastal bluff scrub, coastal scrub/
perennial herb/ March-May
No suitable habitat or soils.
Not expected.
Corethrogyne
HiaginMia var.
itnifoiia
Del Mar
Mesa sand
aster
None/
None/HMP
NE
1B.1
Maritime c^apanBl (openings], coastal
bluff scmb, coastal scmb; sandy/
perennial heri)/ May-September
Habitat is marginal, but
suitable soils present.
Moderate potential to occur.
Not detected during focused
sun/ey.
Dudleya
blochmaniae
spp.
blochmaniae
Blochman's
dudleya
None/
None/HMP
NE
1B.1
Chaparral, coastal bluff scmb, coastal
scrub, valley and foothill grassland,
rocky; often clay or serpentinite/
perennial herb/April-June
No suitable habitat or soils.
Not expected.
Dudleya
multicaulis
Many-
stemmed
dudleya
None/
None/
None
1B.2
Chapan'al, coastal scmb, valley and
foothill grassland; often clays/ perennial
herb/ April-July
No suitable soils. Not
expected.
Dudleya
variegata
Variegated
dudleya
None/
None/
None
1B.2
Chapan-al, cismontane woodland,
coastal scmb, valley and foothill
grassland, vernal pools/ perennial hert)/
May-June
Outside of known range; low
potential.
Dudleya viscida Sticky
dudleya
None/
None/HMP 1B.2 Coastal bluff scmb, chapan'al, coastal
scmb; rocky/ perennial herb/ May-June
Habitat marginal; low
potential.
Eryngium
aristulatum var.
parishil
San Diego
button-
celery
FE/SE/
HMPNE 1B.1
Coastal scmb, valley and foothill
grassland, vemal pools, mesic areas/
annual-perennial herb/April-June
Site lacks vemal pool habitat
Not expected.
Eryngium
pendletonensis
Pendleton
button-
celery
None/
None/
None
1B.1
Coastal bluff scmb, valley and foothill
grassland, vemal pools, mesic areas/
perennial herb/April-June
No appn^priate habitat. Not
expected.
Euphori)ia
misera Cliff spurge None/
None/HMP 2.2 Coastal bluff scmb, coastal scmb;
rocky/ shmb/ December-August
Lacks suitable micn^habitat;
k}w potential. Would have
been observed durinq survey.
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TABLE 3
Sensitive Plant Species Detected or Potentially Occurring on the Project Site
SCIENTIFIC
NAME
comioN
NAME
STATUS
FEDERAU
STATB
LOCAL
CNPS
LIST
PffiMARYHABTTAT ASSOCIATIONS
UFE FORM/ BLOOMINO PEnOOi:
STATUS ON STTEOli
POfBmSLTb OCCUR
Ferocacfus
viridescens
San Diego
ban-el
cactus
None/
None/Hi^ 2.1
Chapan'al, coastal scmb, v^ley and
foothill grassland, vemal pools/ shmb/
May-June
Lacks suitable microhabitat;
low potential. Easily detected
cactus would have been
observed during survey if
present
Hazardia orcuttii Orcutt's
hazardia
None/ST/
HMP NE 1B.1 Chaparai, coastal sage
scmb/shmb/August-October
Outskie of known range;
habitat margin^. Low
potential.
Isocoma
menziesii var.
decumbens
Decumbent
goldenbush
None/
None/
None
1B.2 Chaparral, coastal scmb; sandy, often
disturbed areas/ shmb/ April-November
Appropriate habitat and soils.
Moderate potential to occur.
Not detected during focused
survey.
Iva hayesiana
San Diego
marsh-
elder
None/
None/HMP 2.2 Marshes and swamps, playas/
perennial herb/April-September
No appropriate habitat. Not
expected.
Lasthenia
giabrata ssp.
coulteri
Coulter's
goldfields
None/
None/
None
1B.1
Saltwater marsh and swamps, playas,
vemal pools/ annual herb/ Febmary-
June
No appropriate habitat. Not
expected.
Lotus
nuttallianus
Nuttall's
lotus
None/
None/
None
1B.1 Coastal dunes, coastal scrub/ annual
herb/ March-June
No appropriate habitat. Not
expected.
Muilla
clevelandii
San Diego
goldenstar
None/
None/
HMP NE
1B.1
Chaparral, coastal scmb, valley and
foothill grassland, vemal pools; clay/
bulbiferous heri3/May
No suitable soils. Not
expected.
Myosurus
minimus ssp.
apus
little
mousetail
None/
None/
HMP NE
3.1 Vemal pools (alkaline)/annual
herb/March-June
No appropriate liabitat. Not
expected.
Name
stenocarpum mud name
None/
None/
None
2.2
Marsh and swamps, lake margins and
riveri}anks/annual-perennial
herb/January-July
No appr(^ate habitat. Not
expected.
Navarretia
fossalis
Spreading
navanetia
FT/None/
HMP NE 1B.1
Chenopod scmb, shallow freshwater
marsh & swamps, vemal pools/annu^
herb/April-June
No ^}propriate habitat. Not
expected.
Nemacaulis
denudata var.
denudata
Coast
woolly-
heads
None/
None/
None
1B.2 Coastal dunes/ herb/ April -September No appropriate habitat Not
expected.
Nemacaulis
denudata var.
gracilis
slender
woolly-
heads
None/
None/
None
2.2 Coastal dunes, desert dunes/ heris/Mar-
May
No appropriate habitat. Not
expected.
Orcuttia
californica
California
Orcutt
grass
FE/SE/
HMP NE 1B.1 Vemal pools/ annual herb/April-August No appropriate habitat. Not
expected.
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TABLE 3
Sensitive Plant Species Detected or Potentially Occurring on the Project Site
SCIENTIFIC
NAME
COMMON
NAME
STATUS
FEDERAU
STATB
LOCAL
CNPS
UST
PRIMARY HABITAT ASSOCIATIONS/
LIFE FORM/BLOOMING PERIOD
STATUS ON SITE OR
POTENTIAL TO OC(niR
Phacelia
stellaris
Brand's
phacelia
None/
None/
None
1B.1 Coastai dunes, scmb/annual herb/Mar-
Jun
No appropriate habitat. Not
expected.
Pinus toneyana
spp. torreyana Torrey pine None/
None/HMP 1B.2 Closed-cone conifer forest, chaparal,
sand-stone/tree/NA
No appropriate habitat. Would
have been observed if
present
Quercus
dumosa
Nuttall's
scmb oak
None/
None/
None
1B.1
Chapan-al, coastal scrub, closed-cone
coniferous forest; sandy and day loam/
evergreen shmb/ Febmary-March
No suitable soils. Low
potential. Large, woody shmb
wouki have been observed if
present
Suaeda esteroa Estuary
seablite
None/
None/
None
1B.2 Marshes and swamps/perennial
herb/May-Oct
No appropriate habitat Not
expected.
Tetracoccus
dioicus
Parry's
tetracoccus
None/
None/HMP 1B.2 Chapan-al, coastal scrub/ deciduous
shmb/ April-May
Habitat marginal. Low
potential. Easily detected and
woukl have been observed if
present
Note: This table inckides sensitive plant species listed in the Carlsbad HMP and afl CNPS List 1A, 16, and 2 species repotted by CNPS (2005) in the
San Luis Rey and surrounding 7.5 minute topographic quadrangles.
Legend
FE: Federally-listed as endangered
FT: Federally-listed as threatened
SB: State-listed as endangered
ST: State-listed as threatened
HMP: Carisbad Habitat Management Plan Species of Concern (covered species)
HMP NE: Cartsbad Habitat Managenient Plan Narrow Enderrac Species (covered speoes)
CNPS definitions are included In Appendix D.
4.3.2 Sensitive Habitat
For the purposes of this report, sensitive habitats are considered to be all vegetation types for
which mitigation is required under the HMP. Sensitive habitats typically are vegetation
communities that have undergone significant decline in the past and the wildlife and plants
species associated with them have also been reduced in numbers. Onsite sensitive habitats are
riparian scrub (southem willow scrub and disturbed southem willow scrub), coastal sage scrub
(including disturbed), native grassland (including disturbed) and non-native grassland (including
disturbed). As discussed below, riparian scrub provides potential nesting habitat for several
sensitive migratory bird species, including the state- and federally-listed endangered least Bell's
vireo. Coastal sage scrub provides potential habitat for the federally-listed threatened coastal
Califomia gnatcatcher and other sensitive bird, mammal, and plant species. Native grassland and
non-native grassland may support San Diego ambrosia.
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I
I
Disturbed lands and eucalyptus woodland are listed as HMP habitats in the City's HMP.
Eucalyptus woodland may provide wintering and nesting or roosting habitat for some sensitive
wildlife such as raptors, bats, and monarch butterfly, but the community dominated by this
invasive exotic species is generally of lower habitat value than the native communities that it
replaced. Disturbed lands may provide foraging habitat for raptors,
4.3.3 Sensitive Wildlife Species
Table 4 provides a list of all known sensitive species that occur in the area and discusses their
potential to occur on the project site. No sensitive wildlife species were detected during the initial
wildlife reconnaissance survey of the study area.
No state- or federally-listed threatened or endangered species were observed on site. Focused
surveys for the coastal Califomia gnatcatcher and least Bell's vireo were negative. A habitat
assessment for the Pacific pocket mouse determined that suitable habitat is not present. Existing
coastal sage scrub is much too fi"agmented to support this species.
TABLE 4
Sensitive Wildlife Species Detected or Potentially Occurring in the Project Area
SCIQfr^NAME
STATUS
FEDERAUSTATE;
LOCAL*
PRIMARY HAOTAT
ASSOCIATlbMS
STATUS ON SITE 01^
POTEWnAL TO OCCUR
AMPHBMMS
Spea \=Scaph\opus\
harrmondi
Western
spadefoof None/ CSC/ None
Most common in grasslands, coastal
sage scmb near rain pools or vemal
pools; riparian habitat
Very low potential; lack of
suitable breeding habitat
REPmES
Oiemidophorus
[=^sp/dosce//s]
hyperythnjs beldinqi
Orange-thnsated
whiptal None/CSC/HMP Coastal sage scmb, chapansi,
grassl^d, juniper and oak woodl^d
Very low potently; suitable
h^)itat limited to disturt)ed and
frac^nted coastal sage scmb.
CnemWop/iorus
[=-4spfdosce/is] tigris
stejneqeri
Coastal western
whiptail None^one/ None Coastal sage scmb, cti^ianal
Very low potential; citable
habits limited to disturbed and
fragmented coastal sage scmb.
Chahna trivirgala Coastal rosy boa None/ None/ None
Rocky ch^anr^, coastal sage
scnjb, oak woodl^ds, desert and
semi-deswt scmb
Very low pot^tid; surt^
habitat limited to disturbed and
fragmented coastal sage scmb.
Crotalus mber ruber
Northern red-
diamond
rattlesnake
None/ CSC/ None Variety shn^ habitats where there is
heavy bru^, large rocks, or bouklers
Very low potenti^; suitable
habitat limited to disturbed and
fragmented coastal sage scmb.
Diadq}his punctatus
similis
San Diego
ringneck snake None/ None/ None
Open, rocky areas in moist hat»tats
nea" intennittent strearrB: ma^,
riparian woocttand, sage scmb
Very low potential; \ack of
suit^ rodcy, moist
microhabitat.
Emys [=C/emmys]
marmorata pallida
Western pond
turtle None/ CSC/ None
Skw-moving permanent or ntermiBent
stjeans, ponds, smaH lakes, reservoirs
with emergent ba^wig stes; a(^aoent
uplands used during winter
No potential; suitable habitat is
not present on site.
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TABLE 4
Sensitive Wildlife Species Detected or Potentially Occurring in the Project Area
SCEMTIFIC NAME COMMON
NAME
STAtiiS
FQ)ERAUSTATE/
LOCALS
PRIMARY HABITAT
ASSOCIATIONS
STATUS ON srm oR
POTENTIAL TO OCCUR
Eumeces
skiitor}ianus
Interpahetalis
Coronado skink None/ CSC/None
Grassland, riparian and oak
woodland; found in litter, rotting logs,
under flat stones
Low potential; suitable habitat
limited to disturbed and
fragmented island and
ripariai areas.
Phrynosoma
coronatum (blainvillei
population)
Coast (San
Diego) homed
lizard
None/ CSC/ None
Coastal sage scmb, annual
grassland, chapanal, oak and
ripariffli woodland, coniferous forest
Very icw potential; suit^e
habitat limited to disturtjed and
fragmented coastal sage scmb.
Thamnophis
hammondii
Two-striped
garter snake None/ CSC/ None Marshes, meadows, sloughs, ponds,
slow-moving water courses
No pot^tial; suitable habitat is
not iHBsent on site.
BROS
Accipitercooperii
(nesting) Cooper's hawk None/CSC/HMP Riparian and oak woodlands,
montaie canyons
High potential to nest in willow,
euc^yptus, and other trees. Not
observed.
Aimof^ila ruficeps
canescens
Southem
Califomia mfcxjs-
crowned sparow
None'CSC/HMP
Grass-covered hillsides, a)ast^
sage scmb, chapanal with boukiers
and outCTops
Low pdential; coastal sage
scmb on site is disturbed and
fragmented. Not observed.
Amphispiza belli belli Bell's sage
spanow BCC/CSC/None
Coastal sage scmb and dry
chapan^ along coastal lowlands
^d inland valleys
Low potential; suitable habitat
limited to disturbed and
fragmented coastal sage scmb.
Aquila chrysaetos
(nesting and
wintering)
Golden eagle BCC/CSC, P/None
Open country, especially hilly and
mountainous regions; grassland,
coastai sage scmb, chaparral, oak
savannas, open conifenDus forest
V^ kw potential; limKed open
haUtat areas on site. No
suitable nesting habitat on site.
Athene cunicularia
(bunxw sites) Burrowing owl None/CSC/HMP
Grassland, lowland scmb,
a^uKure, coastal dunes and other
artificial open areas
Low potential; limited fossorial
(e.g., ground squinel burrows)
activity observed during sun/eys.
Campylorhynchus
bninneicapillus
sandiegensis
Coastal cactus
wren None/CSC/ None
Southem cactus scmb, maritime
succulent scmb, cactus thickets in
coastal sage scmb
No potential; suitable habitat is
not present on site.
Charadrius
alexandrinus nivosus
Western snowy
plover (coastal
population)
FT, BCC, USBC/
CSC/HMP
Nests primarily on coastal beaches,
in flat (^n areas, with sandy or
saline substrates; less commonly in
salt pans, dredged spoil disposal
sites, dry salt ponds and levees
No potenti^; suitable habitat is
not present on site.
Dendroica petechia
brewsteri (nesting) Yellow warbler None/CSC/ None
Nests in lowland and foothill riparian
woodands dominated by
cottonwoods, aldera and willows;
winters in a variety of habitats
Low potential; suitable hcdiitat is
United to disturbed and
fragmented southem wiow scmb;
known to breed in area. Not
obseved during focused sun^.
Elanus leucums
(nesting) V\/hite-tailed kite MNBMC/P/None
Open grasslands, savanna-like
h^tats, agriculture, wetlands, oak
woodlands, riparian
Lew potential; eucalyptus trees
are suitable fornesfing a n»s^g
but study area lacks open habitat
areas and is constraned by
existing roadway and reskiential
development
Empidonax traillii
exiimus (nesting)
Southwestern
wliow flycatcher FE, USBC/SE/ HMP
Riparian woodlands along streams
and riv^s with mature, dense stands
of willows or alders; may nest in
thickets dominated by tamarisk
Very low potential; disturbed
and fragmented southem willow
scmb in urbanized area, lack of
perenni^ stream flow.
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TABLE 4
Sensitive Wildlife Species Detected or Potentially Occurring in the Project Area
SCENTtFICHAME coiipibN
NAll
STATUS
FEDERM/STATET
LOCAU
PRMARY HABITAT
J^pqATKWS
STATUS ON SITE OR
POTENTIAL TO OCCUR
ErenK^hila alpestris
actia
Califomia
homed larit None/ CSC/ None
Open habitats, grassland, rangel^d,
short^^s prarie, montane
meadovirs, coastal plains, fallow
grain fields
Low potential; lack of open
habitat areas on site.
Faico peregrinus
anatum
American
peregrine falcon
BCC, (FD)/SE,P/
HMP
Nests on difTs, txjildings, bidges;
forages in wetl^ds, riparian,
meadows, croplancte, especially
where waterfowl are present
No potential; suitable habitat is
not present on site.
Icteria wrens
(nesting)
Yeltow-treasted
chat None/CSC/HMP
Dense, retafiveiy wide riparian
woodlands and thickets of willows,
vine tangles and dense bmsh.
Low potential; limited southem
willow scmb on site is disturbed
and fragmented; known to
breed in area. Not observed
during focused surveys.
Ixobrychius exilis
(nesting) Least bittem None/ CSC/ None
Dense emergent wetland vegetaticm,
sometimes interspersed with woody
vegetation ^d open water
No potential; lack of ^nergent
wetiand vegetation on site,
Laterailus
jamaicensis
cofum/cu/us
Califomia blad(
rait
ST, BCC, USBC/
CSC, PI None
Saline, brackish, and fresh emergent
wetlands
No potential; suitable habitat is
not present on site.
Pandion haliaetus
(nesting) Osprey None/CSC/HMP
Large waters (le^es, reservoirs,
rivera) supporting fish; usually near
forest habitats, but widely observed
along the coast
No potenti^; suitable habitat is
not present on site.
Passerculus
sandwicherjsis
beldingi
Belding's
savannah
sparrow
None/SE/HMP Saltmarsh, pickleweed No potential; suitable habitat is
not present on site.
Passerculus
sandwichensis
ros^atus (wintering)
L^e-billed
savannah
spanow
None/CSC/HMP Sattmarsh, piddeweed No potenti^; suitable habitat is
not present on site.
pQlecanus
occidentalis
califomicus (nesting
colony and
communal roosts)
Califomia brown
pelican FBI SB, PI HMP Open sea, large water bodies,
coastal bays and harbors
No potential; suitable habitat is
not present on site.
Plegadis chihi
(rookery site) Wiite-faced it«s None/CSC/HMP
Nests in marsh; winter foraging in
shallow lacustrine waters, muddy
ground of wet meadows, marshes,
ponds, lakes, rivers, flooded fields
and estuaries
No potential; suitable habitat is
not present on site.
Poiioptiia ca/ffom/ca
californica
Coastal
Califomia
gnatcatch^
FT, USBC/CSC/
HMP
Coastal sage scmb, coastal sage
scmbKihapaTal mix, coastal sage
scmb-grassland ecotone, riparian in
late summer
Low potential; coastal sage
scmb on site is disturbed and
fragmented. Not observed
during protocol surveys and is
considered absent Ux purposes
of this analysis.
Rallus iongirostris
levipes
Light-footed
clapper rail FE/SE,P/HMP Coastal saltmarsh No potential; suitable habitat is
not present on site.
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TABLE 4
Sensitive Wildlife Species Detected or Potentially Occurring in the Project Area
SCIENmCHAIIE COMROH STATUS
FEDERAUSTATE/
LOCALS
PRMARYHABTTAT
V ASSOCIATIONS
STATUS ON SITE OR
POTENTIAL TO OCCUR
^ema antillamm
browni (nesting
colony)
Califomia least
tem
FE, USBC/SE, PI
HMP
Nests atong the coast from San
Francisco Bay south to northern
Baja Califomia
No potential; suitable habitat is
not present on site.
Sterna elegans
(nesting colony) Elegant tern None/ CSC/HMP Coastal waters, estuaries, large bays
and habors, mudflats
No potenti^; suitable hat»tat is
not present on site.
Wreo bellii pusillus
(nesting) Least Belfs vireo FE, BCC, USBC/SE/
HMP
Nests in southem wilkw scmb witti
daise cover within 1-2 m^ of ^
ground habitai includes wiBows,
cottonwoods, baccharis, vinkl Hadfb&rf
or mesqute on desert areas
lew poter^; limited southem
scmb on site Is cfstucbed
and fragnerrted. Not observed
during protocol suneys and is
cor^kJered absent ^ purposes cf
tNs analysis.
MAMMALS
Oiaetodipus
calik>mlcus fymoralis
DdzuraCediftKnia
pocket mcxise None/CSC/ None Coasts sage scmb, diap^, riparian-
scad) ecotone; more meac areas
Suit^ hat»tat present;
moderate potential.
Chaetodipus Max
fallax
Northvrestem
San Diego
pocket mouse
None/CSC/ None
Coastal sage scmb, grassland, sage
scmb-grassland eoDtones, sparse
chapaneri; rocky subsb^ates, loams
and saidy loams
Suitable hatMtat preset;
moderate potential.
Choeronycteris
mexicana
Mexicai long-
tongued bat None/ CSC/ None
Desert and montane ripariai, desert
succulent scmb, desert scmb, and
pinyon-juniper woodland. Roosts in
caves, nHnes& buikfings
No potential; suitable habitat is
not preset (XI site.
iassiums xanthinus Westem yellow
bat None/Nwi^ None
Desert and montane riparian, desert
succulent scmb, desert scmb, and
pinyon-iuniper woodland.
May roc»t in dead palm fronds,
tHJt few palms ixesent on site.
Low potential.
Lepus califomicus
bennettii
San Diego
black-tailed
jackrabbit
None/ CSC/ None
Arid habitats wtth open ground;
^asslands, coastal sage scrub,
agrictdture, distuitied areas, ra^axls
Low potential; tack of open
areas.
Neotoma leplda
intermedia
Diego
desert woodrat None/ CSC/ None
Coastal sage scmb, chapanal,
pinyon-juniper woodland with nx:k
outoc^, cactus thid<ets, dense
undergrovi^
Low potential; viroodrat nest
deteded on site but N. lepida
intermedia typically ocoirs in
more xeric habitats.
Perogn^hus
longimembris
pacificus
Paciftc pocket
mouse FE/CSC/None Grassland, coastal sage scmb with
sandy sdls; along immediate coast
Very low potentid. Habitat
assessment detennined that
suitaUe habitat is not present
Habitat areas wi^in the study
area have been fragmented for
many years.
Taxidea taxus Americai
badger None/ CSC/ None Dry, open treeless areas,
grasslands, coastal sage scmb
Very kw p(^tial, Suitat^ hatxtat
fragmented, site disturtsed.
INVERTEBRATES
Branchineda
sandioqonensis
San Diego fairy
shrimp FE/None/ HMP NE Small, shallow vemal pools,
occasionaKy ditches and road mts
No potential: suitable habitat is
not present on site.
O'cindela senilis
frosli Tiger beetie None/ None/ None Salt matches No potenti^; suitable habitat is
not present on site.
Danaus p/ex/ppus
(wintering sites)
Monardi
butterfly None/ None/ None Overwinters in eucalyptus groves
Moderate potential; abundant
euc^yptus trees. Not detected
during winter roosting surveys.
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TABLE 4
Sensitive Wildlife Species Detected or Potentially Occurring in the Project Area
SCCNTIFICNAME camm
me '
STATUS
FE0ERAU8TATEf
warn
STATUSONSITEOR
POTENTIAL TO OCCUR
Euphyes vestris
harbisoni
Harisison's dun
skipper None/None/HMP
Restiided to w^and, ripari^,
woodlands, and di^iai^ hE^ats
5un}orting host i^an Carex spissa
No pot^ti^; suitable habitat is
not [xesent on site.
Lycaena hemes Hemes a^per None/None/ HMP
NE
Coasts sage scmb, southem mixed
tihapanai suF^xxting at least 5%
cover of host plEtftt Rhamnus crocea
No potential; host plant not
present.
Panoquina errans W3idering(=
saltmar^) skipper None/None/ HMP Salt marsh fnsm Los Angeles to
Baja, Mexico
No potenti^; suitatrie habitat is
not present on site.
Stref^ocephalus
wooffonii
Riverside fairy
shrimp FE/None/ HMP NE
De^, long^ived vem^ pools, vemal
poot-like seasonal ponds, stock
ponds; wamfi water pools that have
kw to moderate dissolved sc^ds
No potentisd; suitable h^itat is
not present on site.
Tryonia imitator
Minuctrycmia,
Califomia
bradcishwater
snail
None/ None/ None Coastal lagoons, estuaries and salt
marshes
No potenti^; suitable habitat is
not present on site.
FISH
Gila orcuttii Arroyo chub None/CSC/None
Wann, fluctuating streams vriUi ^ow-
movtng or backwater sections of
wann to cod streams at dep^s > 40
cm; substrates of sand or mud
No potenti^; suitable habitat is
not present on site.
Fish and Wikttfe Senrice: Brds of Consena&Hi Concern
FedwaHy-<leBsted; monitored for five years
Federa^-istBd Endangered
Federal^-fetBd as Tfveatened
Fish and WHdlfe Senrice Migratory Nongame Birds of Management Cont^
United States Bird Conservation Watch Ust
Note: This table indudes afl wiMDfe species listed in the CNDD6 Rarefind database in the San Luis Rey and sunoundtng 7.5 minute topographic
quadrangles or covwed under the Cartoad HMP. The federal and state status of species is based on the Califomia Department of Fish and
Game's Special Artoils list (July 2005).
Federal Designationc:
CO
(FD)
FE
FT
MNBMC
USBC
State Decignations:
CSC Calitomia Special Concern Spedes
P CDFG Gan» Protected and FuHy Protected Species
SE State-feted as Endangered
ST State-feted as Threatened
Carlsbad Designations:
Hh/lP Carlsbad Hh^ Species of Concern (covered spedes)
HMP NE Cartsbad Hl^ Nanow Endemic Species (covered) spedes
No sensitive wildlife spedes were observed on site. Four sensitive species were considered to have a
moderate or high potential to occur in the study area. Cooper's hawk (Accipiter cooperii) and other
raptors may nest in riparian habitat or eucalyptus trees on site, although existing traffic noise from El
Camino Real may affect nesting. Dulzura Califomia pocket mouse (Chaetodipus califomicus
femoralis) and northwestern San Diego pocket mouse (C fallax fallax) may be present in the open
coastal sage scrub and/or grassland habitats on the site, but the long-time fragmentation of the habitat
makes this area marginal for even these relatively common species. The abundant eucalyptus trees on
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site provide potential wintering habitat for monarch butterfly (Danaus plexippus). However, monarch
butterfly were not detected during a winter roosting survey conducted within the eucalyptus trees on
site.
4.4 Jurisdictional Waters
Based on the 19 wetlands sample points (data stations) examined in the study area and
subsequent mapping of riparian vegetation and jurisdictional waters, wetlands and waters under
jurisdiction of ACOE, RWQCB, and CDFG are present in the study area. No jurisdictional
waters are present within the portion of the study area within the Coastal Zone. The wetland
delineation forms are provided in Appendix C. The locations of these jurisdictional waters are
shown in Figure 3, 3A-3D and their areas are quantified in Table 5; areas under the sole
jurisdiction of CDFG are denoted on Figure 3 by "-C".
TABLES
Jurisdictional Areas
WATEKiWETMWDSTYPE M^REAGE JURISWCTKtt
Southem wilow scrub 0.61 CDFG
ScHj^em willow scmb 0.07 CDFG, ACOE, RWQCB
Souths wilow scrub<listurbed 0.11 CDFG
Open chsinel (Ephemera) <o.or CDFG. ACOE, RWQCB
Open channel (Int^ittent) 0.43 CDFG, ACOE, RWQCB
Concrete^ined channel (Ephem^'al) 0.01 CDFG, ACOE, RWQCB
Concrete^ined chann^ (Intermittent) 0.02 CDFG, ACOE, RWQCB
AAA
^ 149 square feet
Non-wetlands Jurisdictional Waters
Sampling points (data stations) 1, 6, 7, 17, and 19 are below the stream's ordinary high water
mark and show evidence of stream hydrology. The stream channel is therefore mapped as a water
of the United States, with widths varying between 3 and 10 feet. The stream supports riparian
vegetation sporadically throughout its length and is therefore considered to be an intermittent
stream. Data station 10 is adjacent to a pair of small tributary streams feeding the central channel;
although a single velvet ash (Fraxinus velutina) grows near the streams, these narrow, shallow
channels are deemed to cany water only briefly following rainfall and are mapped as ephemeral
channels occurring within uplands.
Concrete-lined channels (i.e., brow ditches) in the study area are generally considered ephemeral
waters of the U.S., being designed to convey water rapidly. A portion of concrete-lined channel
at Tamarack Avenue is considered an intermittent waters of the U.S. because it occurs between
riparian scrub.
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All channels on site eventually convey water into Agua Hedionda, a navigable waters of the U.S.,
and are under jurisdiction of ACOE, CDFG, and RWQCB.
4.4.2 ACOE Wetlands
A small patch (0.07 acre) of southem willow scrub south of Tamarack Avenue is the only area
that meets all three ACOE criteria. It includes a widened stream channel with standing water at
the time of the survey and the first terrace up to about four feet above the channel. Areas under
ACOE jurisdiction (data stations 11 and 12) were distinguished from the surrounding CDFG-
jurisdictional area by indicators of wetlands hydrology. The CDFG-jurisdictional area (data
stations 13 and 14) has the same species composition (arroyo willow and pampas grass) and low-
chroma hydric soils. The presence of hydric soil indicators without evidence of wetlands
hydrology in this case is thought to indicate that this higher-elevation area had been regularly
flooded in the past, before channelization of the stream under Tamarack Avenue. This area is
under jurisdiction of ACOE, CDFG, and RWQCB.
4.4.3 CDFG-Jurisdictional Riparian Areas
Data stations 4, 8, 16, and 17 occur in southem willow scrub vegetation and have a
predominance of wetiands species (e.g., arroyo willow), but lack evidence of wetiands hydrology
and hydric soils. These areas are therefore not under federal jurisdiction, but meet CDFG criteria
for jurisdictional riparian habitat. Similar areas of southem willow scrub and disturbed southem
willow scrub throughout the site are also under CDFG jurisdiction. A total of 0.79 acre of
riparian vegetation is under CDFG jurisdiction.
All other sampling points (data stations 2, 3, 5, and 9) are in upland vegetation and lack
predominance of wetiands vegetation and hydrology and tiius are not considered jurisdictional
waters. One such location (data stations 2 and 18) does have hydric soils at depth, but these are
considered to be residual indicators of the historic floodplain prior to development of the area
and are not considered CDFG-jurisdictional.
4.5 Wildlife Corridor and Habitat Linkage
Wildlife corridors are linear features that connect large patches of natural open space and provide
avenues for wildlife movement. Wildlife corridors contribute to population viability by maintaining
genetic diversity through gene flow, providing access to adjacent habitat for foraging and mating,
and providing routes for recolonization following local disturbance due to fire and other
catastrophes. The City of Carlsbad (2004) considers a wildlife corridor to be a linear tract of land
that species must travel through to reach suitable habitat for reproduction and other life needs.
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Habitat linkages are patches of native habitat that connect two larger patches of habitat, helping
to reduce the adverse effects of habitat Iragmentation. A linkage provides a potential route for
gene flow and long-term dispersal and may also serve as primary habitat for small animals, such
as reptiles and amphibians. Habitat linkages may be continuous or a series of habitat islands that
function as stepping stones for dispersal.
The City of Carlsbad (2004) specifically identifies habitat linkages as a part of the HMP, with
Linkages consisting of conserved habitat that provides a connection between the Core areas
(large blocks of conserved habitat) and other natural habitat areas. The study area is not identified
as a Linkage in the HMP (City of Carlsbad 2004).
Riparian scrub occurs in the study area from north to south and continues to the southeast into a
large block of agricultural land that continues into a large block of natural habitat surrounding
Aqua Hedionda. Small mammals, birds, and reptiles may move between the study area and more
extensive habitat areas to the south and east. However, the study area is surrounded by residential
development to the east, west, and north, and, therefore, does not provide a corridor through
which wildlife would pass to any other block of habitat.
4.6 Regional Resource Planning Context
4.6.1 Carisbad IHabitat Management Plan
Several conservation planning efforts are currently in progress in San Diego County with the
long-term goal of establishing a regional habitat reserve system that will protect native habitat
lands and their associated biota. The Multiple Habitat Conservation Program (MHCP) is the
subregional habitat conservation program for northwestern San Diego County, including the City
of Carlsbad. The City's plan to implement the goals of the MHCP is through implementation of
the Carlsbad Habitat Management Plan for Natural Communities in the City of Carlsbad
(HMP), approved in 2004.
The HMP is a comprehensive, citywide conservation program designed to preserve sensitive
biological resources within the City while allowing for development consistent with the City's
General Plan and Growth Management Plan. Specific biological objectives of the HMP are to
conserve the full range of vegetation types remaining in the City, with a focus on protecting rare
and sensitive habitats and species. Conservation is achieved through designated Cores and
Linkages that include "hard-line" preserves, where no development is permitted, and "soft-line"
areas where a portion of the area may be developed. In addition, certain areas, designated as
"Standards Areas" must be designed, permitted, and developed according to special land use
regulations adopted by the City. Preserve assembly methods are specifically identified by Local
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Facilities Management (LFM) Zones within the City, each with specific conservation goals and
development restrictions.
The HMP provides incidental take permits for five "covered" plant species and 17 wildlife
species, based on a conservation analysis of existing, proposed, and allowable development
impacts and proposed conservation measures. Upon adoption of other Subarea Plans within the
MHCP planning area, an additional six plant species and 13 wildlife species would be covered
under the plan. Specific conservation measures for certain covered species, such as survey
requirements and minimization and avoidance measures for certain bird species, and preservation
of 80% of narrow endemic plant (referred to as "NE" in this report) species outside of designated
preserves are required by the HMP.
The study area is located within the Local Facilities Management (LFM) Zones 1 and 2, which
are divided at El Camino Real. The study area is not within a Core Area or Linkage.
LFM Zones 1 and 2 are almost entirely developed, with scattered patches of natural vegetation,
mostiy on the slopes adjoining Buena Vista and Agua Hedionda Lagoons. The HMP
Conservation goal for LFM Zone 1 is to conserve habitat contiguous to these lagoons. The study
area is not within a Zone 1 Standards area. The HMP Conservation goal for LFM Zone 2 is to
enhance Core Area 2, adjacent to the City of Oceanside, to assure the City of Carlsbad's portion
of a regional Califomia gnatcatcher corridor. The study area is not within a Zone 2 Standards
area.
In accordance with the Carlsbad HMP, mitigation for impacts to Cahfomia gnatcatcher-occupied
coastal sage scrub would occur at a 2:1 ratio, a 1:1 ratio for unoccupied coastal sage scrub, and a
0.5:1 ratio for annual grassland. Mitigation for impacts to jurisdictional waters requires no net
loss, but varies by type of replacement habitat. City projects that impact unoccupied coastal sage
scrub, annual grassland, disturbed lands, and eucalyptus will mitigate at the Lake Calavera
Mitigation Bank and may mitigate out-of-kind.
4.6.2 Coastal Zone
The Coastal Zone extends eastward from the cul de sac at the end of Alder Avenue into the study
area and southward along the eastern edge of the El Camino Real right-of-way, encompassing
8.99 acres of the study area. Table 6 provides the acreages of the project's vegetation
communities and land covers within the Coastal Zone.
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TABLE 6
Vegetation Communities/Land Covers Within the Coastal Zone
VEQmTtQNCOIillUI ffTYJ UNO GOV^R TYPE ACREAGE
Native
Uplands
Coasts sage scrub 0.26 Native
Uplands Coastal sage scrub-disturbed 0.091 Native
Uplands Native grassland-disturbed 0.022
Non-native
Land Covers
Developed 8.24 Non-native
Land Covers Disturbed lands 0.32 Non-native
Land Covers Ornamental 0.063
TOTAL* 8.99
' 4,013 square feet
^ 715 square feet
3 2,703 square feet
* Total may not sum precisely due to rounding
The CCC regulates Environmentally Sensitive Habitat Areas (ESHA), including coastal sage
scrub and native grassland, to protect these from significant disruption of habitat values. The
Carlsbad HMP incorporates additional conservation standards to be applied to properties in the
Coastal Zone to meet CCC requirements. General conservation standards that apply to portions
of Carlsbad within the Coastal Zone include:
• No net loss of sensitive uplands or wetlands habitats.
• Mitigation for impacts to coastal sage scrub at a 2:1 ratio
• Mitigation for native grassland at a 3:1 ratio
• Natural buffers of 100 feet to wetiands and 20 feet to native uplands.
5.0 ANTICIPATED PROJECT IMPACTS
This section addresses direct, indirect, and cumulative impacts to biological resources that may
result from implementation of the proposed project.
Direct Impacts consist of the loss of habitat and the plant and wildlife species tiiat it contains
within the Area of Potential Effect (APE) provided in December 2006. For the purposes of this
assessment, all biological resources within the APE are considered 100% lost. Direct impacts
were quantified by overlaying digital maps showing the APE on the vegetation map.
Indirect Impacts are more difficult to quantify but may be as significant as direct impacts. They
primarily result from adverse "edge effects," either short-term indirect impacts related to
construction or long-term, chronic indirect impacts associated with the location of development
in proximity to biological resources within natural open space. Few long-term indirect biological
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impacts are anticipated because the project will expand the existing roadway without introducing
new land uses into the area.
Short-term indirect impacts that could potentially result from project construction include dust,
which could affect plant growth and insect activity, noise, which could disrupt wildlife
communication, including bird breeding behavior; lighting, which could disrupt behavior of
nocturnal reptiles, mammals, and raptors; sedimentation, siltation, and erosion, which could
affect water quality of on-site sti-eams; and pollutant run-off, including chemicals used during
construction and machinery maintenance, which could contaminate soil and water. However,
implementation of standard best-management practices (BMPs) required as part of the project
permitting process will minimize these effects.
Cumulative Impacts refer to incremental individual environmental effects of the proposed
project and other past, present, and reasonably foreseeable future projects when combined
together. These impacts taken individually may be minor, but collectively may be significant as
they occur over a period of time.
5.1 Direct Impacts
5.1.1 Vegetation Communities
Direct permanent impacts include all areas within the proposed APE, as shown in Figure 4, 4A-
4D. Implementation of the proposed project would potentially result in the direct permanent loss
of the vegetation community and non-natural land cover acreages shovm in Table 7.
TABLE 7
Project Impacts to Vegetation Communities and Land Covers
VEGETATION COHHUWR / LAND COVER TYPE ACREAGE VEGETATION COHHUWR / LAND COVER TYPE COASTAL ZONE OTHER TOTAL
Native
Uplands
Coasts saoe scrub 0.26 0.88 1.14
Native
Uplands Coastal saae scrut)-disturt)ed 0.091 0.08 0.17 Native
Uplands Native orassland-disturbed 0.022 — 0.02
JurisdicUonal
Waters/Wetlands
Ripariai scrub (Southern willow scrub) — 0.37 0.37
JurisdicUonal
Waters/Wetlands
Rioarian scrub (Southern wilow scrub-disturbed) — 0.03 0.03 JurisdicUonal
Waters/Wetlands Unveoetated strewn channel — 0.10 0.10
JurisdicUonal
Waters/Wetlands
Concrete^tned chann^ — 0.02 0.02
Non-native
Land Covers
Ncm-native grassland — 0.11 0.11
Non-native
Land Covers
Developed 8.24 4.94 13.18
Non-native
Land Covers [^sturbed lands 0.32 2.28 2.60 Non-native
Land Covers EucalvDtus woodland — 0.33 0.33
Non-native
Land Covers
Ornamental 0.06J 0.36 0.43
TOTAL* 8.99 S.50 18.50
M,013 square feet
2 715 square feet
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^Totals may not sum precisely due to rounding
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wm mm wmn
^ :4 APE Limits
J Study Area
V .
0 250 500 i Vi
BASE SOURCE: Berryman & Henigar, December 2005 APE: December 2006
El Camino Real Widening Project • Biological Resources Report
Biological Resources with APE Limits Index Map
FIGURE
TOPO SOURCE: Berryman & Henigar, December 2005
Study Area
/\y APE Limits
Coastal Zone Boundary
• Data Station
0 Feet
VEGETATION TYPES/LANDCOVERS:
Q3 AGL: Annual Grassland
C3 CSS: Coastal Sage Scrub
C3 dCSS: disturbed Coastal Sage Scrub
C3 DEV: Developed
C3 DH: Disturbed Habitat
C3 EUC: Eucalyptus Woodland
C3 NGL: Native Grassland
C3 dNGL: disturbed Native Grassland
C3 Of^N: Ornamental
03 SWS: Southem Willow Scrub
C3 SWS_C: Southern Willow Scrub (CDFG only)
C3 dSWS_C: disturbed Southern Willow Scrub (CDFG only)
Jurisdictional Waters of the U.S./State
——• Ephemeral Waters
—— Ephemeral Waters (concrete-lined)
—— Intermittent Waters
—• Intermittent Waters (concrete-lined)
Note; Number indicates width of channel
segment between marks.
40 80
El Camino Real Widening Project • Biological Resources Report
Biological Resources Map with APE Limits
FIGURE
4A
TOPO SOURCE: Berryman & Henigar, December 2005
/\/ Study Area
/\/ APE Limits
Coastal Zone Boundary
• Data Station
Feet
0 40 80
VEGETATION TYPES/LANDCOVERS:
03 AGL: Annual Grassland
C3 CSS: Coastal Sage Scrub
C3 dCSS: disturbed Coastal Sage Scrub
C3 DEV: Developed
C3 DH: Disturbed Habitat
C3 EUC- Eucalyptus Woodland
03 NGL: Native Grassland
C3 dNGL: disturbed Native Grassland
Q3 ORN: Ornamental
03 SWS: Southern Willow Scrub
03 SWS_C: Southern Willow Scrub (CDFG only)
03 dSWS_C: disturbed Southern Willow Scrub (CDFG only)
Jurisdictional Waters of tiie U.S./State
——• Ephemeral Waters
—— Ephemeral Waters (concrete-lined)
Intermittent Waters
——' Intermittent Waters (concrete-lined)
Note: Number indicates width of channel
segment between marks.
El Camino Real Widening Project • Biological Resources Report
Biological Resources Map with APE Limits
FIGURE
4B
•
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El Camino Real Widening Project • Biological Resources Report
Biological Resources Map with APE Limits
El Camino Real Widening Project • Biological Resources Report
Biological Resources Map with APE Limits
FIGURE
4D
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5.1.2 Jurisdictional Waters
As shown in Table 8, the project would impact 0.07 acre of southem willow scrub, 0.11 acre of
intermittent stream charmel, and 0.01 acre of ephemeral channel under jurisdiction of ACOE,
RWQCB, and CDFG. An additional 0.30 acre of southem willow scrub and 0.03 acre of
disturbed southem willow scmb under sole jurisdiction of the CDFG would also be impacted.
TABLE 8
Project Impacts to Jurisdictional Areas
WATERS/WETLANDS TYPE ACREAGE JURISDICTION
Southem willow scrub 0.30 CDFG
Southem willow scrub 0.07 CDFG, ACOE, RWQCB
Southem willow scrub-disturbed 0.03 CDFG
Unvegetated stream channel (ephemeral) ._ CDFG, ACOE, RWXB
Unvegetated stream channel {intennittent) 0.10 L CDFG, ACOE, RWQCB
Concrete-lined channel (ephemeral) 0.01 CDFG, ACOE, RWQCB
Concrete-lined channel (intermittent) 0.01 CDFG. ACOE, RWQCB
TOTAL* 0,52
^ Totals may nof sum precisely due to rounding.
5.1.3 Sensitive Plant Species
No sensitive plant species are considered to occur in the APE. The project would have no direct
impacts to sensitive plant species.
5.1.4 Sensitive Wildlife Species
Nesting Cooper's hawk, Dulzura Califomia pocket mouse and northwestern San Diego pocket
mouse, if present, may be impacted by loss of habitat. The project has the potential to impact
0.73 acre of potential Cooper's hawk nesting habitat (southern willow scrub and eucalyptus
woodland) and 1.44 acres of Dulzura pocket mouse and northwestem San Diego pocket mouse
habitat (coastal sage scrub and grasslands).
5.1.5 Regional Resource Planning Context
The project is part of the El Camino Real Widening - South Chestnut to South Alga, which is
covered by proposed City-lands mitigation bank (Carlsbad 2004). (Note: subsequent to the
submittal of the HMP, the street name was changed to Aviara Parkway to the west of El Camino
Real, and Alga Road east of El Camino Real). The project is therefore consistent with the
Carlsbad HMP.
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5.1.6 Coastal Zone
The project would impact 0.35 acre of coastal sage scmb and 0.02 acre (715 square feet) of
disturbed native grassland within the Coastal Zone. No narrow endemic plant species or
Califomia gnatcatchers within the Coastal Zone would be impacted.
5.2 Indirect Impacts
No additional long-term indirect impacts to sensitive vegetation, jurisdictional waters, sensitive
plant or wildlife species, or regional wildlife corridors are anticipated because the project will not
introduce new land usage in the vicinity.
No short-term indirect impacts to sensitive vegetation, jurisdictional waters, sensitive plant or
wildlife species, or regional wildlife corridors are anticipated because implementation of
standard BMPs will reduce potential constmction-related effects. No potential indirect impacts
due to noise during construction are anticipated because sensitive species, such as the state- and
federally-listed endangered least Bell's vireo and the federally-listed threatened Califomia
gnatcatcher, are not present adjacent to the study area.
5.3 Cumulative Impacts
Implementation of the EI Camino Real Road Widening Project would contribute to the cumulative
loss of biological resources within the City of Carlsbad. The cumulative loss of these resources may
be considered significant, but mitigation for project impacts within Carlsbad would reduce these
cumulative impacts. Furthermore, the project is consistent with the Carlsbad General Plan and
HMP, which address the cumulative loss of biological resources within the City.
6.0 ANALYSIS OF SIGNIFICANCE
6.1 Explanation of Findings of Significance
Impacts to native habitats, sensitive plants, and sensitive wildlife species must be quantified and
analyzed to determine whether such impacts are significant under the Califomia Environmental
Quality Act (CEQA). For purposes of this report, the proposed project may have a significant
effect on the environment if the project has the potential to impact directly, indirectly, or
cumulatively the following: (1) sensitive habitats; (2) sensitive species; (3) raptor foraging,
habitat, or wildlife movement; (4) the ability of the City to implement the HMP; and (5)
conformance with applicable ordinances, policies, and habitat conservation plans.
The evaluation of whether an impact to a biological resource is significant must consider both the
resource itself and the role of the resource in a regional context. Substantial impacts are those that
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contribute to or result in permanent loss of an important resource, such as a population of a rare
plant or animal, bnpacts may be important locally because they result in an adverse alteration of
existing site conditions, but considered not significant because they do not contribute substantially
to the permanent loss of that resource regionally. The severity of an impact is the primary
determinant of whether or not that impact can be mitigated to a level below significant.
6.2 Direct Impacts
6.2.1 Sensitive Vegetation Communities
Direct permanent impacts to vegetation communities and land covers listed as HMP habitats in the
City HMP would be considered significant. Direct impacts to 1.31 acre of coastal sage scrub
(including disturbed), 0.02 acre of disturbed native grassland, 0.11 acre of non-native grassland, 0.40
acre of southem willow scrub (including disturbed), 0.33 acre eucalyptus woodlands, and 2.60 acres
• disturbed land, all vegetation communities and land covers listed as HMP habitats in the City HMP,
^ are considered significant.
IB
6.2.2 Jurisdictional Waters
mm
^ Direct permanent impacts to 0.19 acre of waters, including wetlands, under the jurisdiction of
ACOE, CDFG, and RWQCB, and an additional 0.33 acre of riparian vegetation under the
jurisdiction of CDFG only (for a total CDFG-jurisdictional area of 0.52 acre) are considered
* significant.
6.2.3 Sensitive Wildlife Species
m
Direct impacts to Cooper's hawk and other raptors are prohibited under Section 3503.5 of the
California Fish and Game Code. Potential impacts to nesting Cooper's hawk, Dulzura Califomia
pocket mouse and northwestem San Diego pocket mouse, if present, would be considered
«i significant.
m
6.3 Indirect Impacts
m
M No significant indirect impacts during construction are anticipated because all potentially
significant indirect impacts would be avoided through implementation of standard project BMPs.
* Potential indirect impacts due to noise during constmction are not significant because sensitive
* state- and/or federally-listed species are not present adjacent to the study area.
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6.4 Cumulative Impacts
No significant cumulative impacts would result from the project because the project is consistent
with the Carlsbad General Plan and HMP, which address the cumulative loss of vegetation and
wildlife habitat within the City. Long-term indirect impacts are not additive to existing indirect
impacts from use of El Camino Real, so long-term indirect impacts are considered not
significant.
7.1.1 Sensitive Vegetation
Mitigation for significant direct impacts to sensitive vegetation communities consists of creation
or preservation of vegetation communities in accordance with the Carlsbad HMP in the amounts
shown in Table 9 and discussed below.
TABLE 9
Recommended Mitigation for Impacts to Sensitive Vegetation
and Jurisdictional Waters (Acres)
VEGETATION COMMUNtTY
COASTAL ZONE OTHER TOTAL
VEGETATION COMMUNtTY IMPACT
MTIGATION
IMPACT
MrTlGATION
Creation Preservdton Tot^ VEGETATION COMMUNtTY IMPACT Ratio Acres IMPACT Ratio Acres Creation Preservdton Tot^
Coastal sage scrub
(including distuited) 0.35 2:11 0.70 0.96 1:1 0.96 0.35 1,31 1.66
Native grassland-disturbed 0.02 3:1' 0.06 — — 0.022 0.04 0,06
Non^atlve grassland — _ 0.11 0.5:1 0.05 -0,06 0.06
Riparian scrub
(including disturbed) -— — 0,40 3:11 1.20 0,40 0.8 1.20
Ephenieral channel — — 0.01 1:1' 0.01 0.01 — 0,01
Intermittent channel 0.11 1:11 0.11 0,11 — 0.11
Eucalyptus woodland — — — 0.33 0,1:1 0.03 — 0,03 0.03
Disturbed lands 0.32 0.1:1 0.03 2.28 0.1:1 0.23 — 0.26 0.26
' Includes 1:1 creation. 2 Included within coastal sage scrub mitigation.
The loss of 0.02 acre (715 SF) of disturbed native grassland within the Coastal Zone (CZ) will be
mitigated at a ratio of 3:1, including 1:1 habitat creation. Because only 0.02 acre of native
grassland creation is required, this will be incorporated (as container plantings) into the coastal
sage scrub habitat creation discussed below.
m
The loss of 0.35 acre of CZ coastal sage scrub will be mitigated at a 2:1 ratio including habitat
creation at a 1:1 ratio. A total of 0.37 acre of coastal sage scrub habitat will be created within the
CZ, including a sufficient quantity of container plants as native grasses equivalent to the creation
of 0.02 acre of native grassland. The remaining 1:1 mitigation for impacts to CZ coastal sage
scrub, together with 1:1 mitigation for non-CZ coastal sage scrub impacts, will be achieved
46
4926-01
September 2007
Biological Resources Technical Report
El Camino Real Road Widening Project
m
m
through preservation of 1.31 acres of coastal sage scrub habitat by use of mitigation credit in the
City of Carlsbad's Lake Calavera Mitigation Bank.
Loss of 0.11 acre of non-native grassland will be mitigated by preservation of 0.06 acre of non-
native grassland (or superior habitat) by use of mitigation credit in the City of Carlsbad's Lake
Calavera Mitigation Bank. Impacts to 0.33 acre of eucalyptus woodland and 2.60 acres of
disturbed lands will be mitigated by 0.03 acre and 0.26 acre habitat preservation, respectively, at
the Lake Calavera Mitigation Bank and may be out-of-kind.
7.1.2 Jurisdictional Waters
Mitigation for impacts to jurisdictional waters and riparian habitats include 1:1 creation in
accordance with the "no-net loss" wetlands policy. As shown in Table 9, impacts to 0.40 acre of
southem willow scrub (i.e., riparian scrub), including disturbed, will be mitigated at a 3:1 ratio,
consisting of creation of 0.40 acre (1:1) of southem willow scrub and use of 0.80 acre (2:1) of
mitigation credit in the City of Carlsbad's Lake Calavera Mitigation Bank. Impacts to 0.12 acre
of ephemeral and intermittent stream channels will be mitigated through creation of 0.12 acre of
stream channel (or superior) habitat. A total of 0.52 acre of wetland habitat will therefore be
created in partial mitigation for wetland impacts.
A Clean Water Act (CWA) Section 404 Nationwide Permit will be required from the ACOE for
project impacts to 0.19 acre of ACOE-jurisdictional waters. Projects causing a loss of less than
0.50 acre of non-tidal waters of the U.S. qualify for Nationwide Permit 14 (Linear Transportation
Crossings).
A CWA Section 401 permit from the RWQCB will be required for impacts to 0.19 acre of waters
under their jurisdiction.
A Califomia Fish and Game Code Section 1602 Streambed Alteration Agreement will be
required from the CDFG for impacts to 0.52 acre of jurisdictional waters and riparian vegetation.
7.1.3 Sensitive Wildlife
Impacts to Cooper's hawk, other raptors, and other migratory bird species nests protected under
the Migratory Bird Treaty Act (MBTA) may be avoided by a) conducting vegetation clearing
outside of the January - September bird breeding season or b) having a qualified biologist
conduct a focused survey for bird nests not more than 72 hours prior to commencement of
vegetation clearing activities. If active nests are found, impacts (both direct and indirect) may be
avoided by ceasing constmction within an appropriate buffer zone around the nest site until
4926-01
DUDEK 47 September 2007
Biological Resources Technical Report
El Camino Real Road Widening Project
juveniles have fledged and the nesting cycle is complete. A minimum of a 50-foot buffer and up
to a maximum of 300 feet for raptors will be determined by the project biologist.
Impacts to Cooper's hawk, Dulzura Califomia pocket mouse, and northwestem San Diego
pocket mouse will be mitigated through creation and/or preservation of riparian scmb and
eucalyptus woodland (Cooper's hawk), and coastal sage scrub and grassland (pocket mice)
habitats discussed above. Note that the loss of approximately 0.73 acre of potential Cooper's
hawk nesting habitat (0.33 acre eucalyptus woodland and 0.40 acre riparian scmb) would be
mitigated through creation and preservation of 1.20 acres of riparian habitat, and preservation of
0.03 acre of eucalyptus woodland.
8.0 ACKNOWLEDGMENTS
This report was prepared by Dudek biologist David Flietner. KamamI Muri, Megan Enright and
Phil Behrends, Ph.D., provided report review. Graphics and GIS analysis were provided by
Lesley Terry; Lies Berault provided word processing.
9,0 LITERATURE CITED
American Ornithologists' Union, 2006, "Forty-seventh Supplement to the American
Omithologists' Union Checklist of North American Birds." .^wA: 123(3):926-936.
AirPhoto USA. Aerial Image Flown Febmary 2005.
Bond, S.I. 1977. "An Annotated List of the Mammals of San Diego County, Califomia." Trans.
San Diego Soc. Nat. Hist. 18: 229-248.
Bowman, R.H. 1973. Soil Survey, San Diego Area, Califomia, Part 1. United States Department
of the Agriculture. 104 pp. + appendices.
Brenzel, K.N. 1999. Sunset Western Garden Book. Sunset Publishing, Menlo Park, Califomia.
May. 624 pp.
Califomia Department of Fish and Game, Natural Diversity Database (CDFG). 2005a. Rarefind.
Version 3.0.3. Computer software. September.
Califomia Department of Fish and Game, Natural Diversity Database (CDFG). 2005b. Special
Animals (673 taxa). Biannual publication, mimeo. July. 53 pp.
Califomia Department of Fish and Game, Natural Diversity Database (CDFG). 2005c. Special
Vascular Plants, Bryophytes, and Lichens List. Quarterly pubHcation, mimeo. October. 88 pp.
4926-01
DUDEK 48 September 2007
Biological Resources Technical Report
El Camino Real Road Widening Project
Mr
m
m
m
Califomia Department of Fish and Game, Natural Diversity Database (CDFG). 2005d. State and
Federally Listed Endangered and Threatened Animals of Califomia. Biannual
publication, mimeo. 11 pp. October.
Califomia Department of Fish and Game (CDFG). 2005e. State and Federally Listed
Endangered and Threatened, and Rare Plants of California. Biannual publication,
mimeo. October. 14 pp.
Califomia Native Plant Society (CNPS). 2005. Inventoiy of Rare and Endangered Plants (online
edition, v6-05b). Califomia Native Plant Society. Sacramento. Accessed from
http://www.cnps.org/inventory.
Carlsbad, City of. 2004. Habitat Management Plan for Natural Communities in the City of
Carlsbad. Final Approval, November 2004 Including Implementing Agreement and
Terms and Conditions.
Emmel, T.C. and J.F. Emmel. 1973. The Butterflies of Southern California. Natural History
Museum of Los Angeles County, Science Series 26:1-148.
Hickman, J.C. 1993. The Jepson Manual: Higher Plants of California. University of Califomia
Press, Berkeley. 1400 pp.
Holland, R.F. 1986. Preliminary Descriptions of the Terrestrial Natural Communities of
Califomia. Nongame-Heritage Program, Califomia Department of Fish and Game. 156 pp.
Jones, C, R.S. Hoffmann, D.W. Rice, R.J. Baker, M.D. Engstrom, R.D. Bradley, D.J. Schmidly,
and CA. Jones. 1997. Revised Checklist of North American Mammals North of Mexico,
1997. Occasional Papers, Museum of Texas Tech University, No. 173, 23 pp.
Natural Resource Conservation Service (NRCS). 2005. Califomia Portion of the National Hydric
Soil List - August II, 2005. Excel spreadsheet accessed at ftp://ftp-
fc.sc.egov.usda.gov/NSSC/Hydric_Soils/Lists/ca.xls
Reed, P.B. 1988. National List of Plant Species That Occur in Wetlands: California (Region 0).
Biological Report 88(26.10). United States Fish and Wildlife Service, Department of the
Interior.
Roberts, F.M. 1998. A Checklist of the Vascular Plants of Orange County, Califomia. Second
edition. F.M. Roberts Publications, Encinitas, Califomia. 96 pp.
4926-01
DUDEK 49 September 2007
Biological Resources Technical Report
El Camino Real Road Widening Project
^ SANDAG (San Diego Association of Governments). 2003. Multiple Habitat Conservation
Program. EIR/EIS.
Simpson, M. and J. Rebman. 2002. Checklist of the Vascular Plants of San Diego County,
California. Third edition. San Diego State University and San Diego Natural History
* Museum, San Diego, Califomia. 80 pp.
m
Stebbins, R.C. 2003. A Field Guide to Western Reptiles and Amphibians - Third Edition.
^ Houghton Mifflin Co., Boston, Mass. P. 514
9 U.S. Army Corps of Engineers. 1987. Corps of Engineers Wetlands Delineation Manual.
^ Technical Report Y-87-1. January.
U.S. Fish and Wildlife Service, Carisbad Field Office (USFWS). 1997. Coastal California
Mt Gnatcatcher polioptila californica califomicaj Presence/Absence Survey Protocol.
Revised July 28.
m
U.S. Fish and Wildlife Service. 2005. "Endangered and Threatened Wildlife and Plants; Review of
^ Native Species That Are Candidates or Proposed for Listing as Endangered or Threatened;
Annual Notice of Findings on Resubmitted Petitions; Annual Description of Progress on
Listing Actions; Proposed Rule." Federal Register 7090: 24869-24934. May 11.
^ Unitt, P.A. 1984. Birds of San Diego County. Memoir 13, San Diego Society of Natural History.
287 pp.
M Unitt, P.A. 2004. San Diego County Bird Atlas. San Diego Society of Natural History. 645 pp.
4926-01
DUDEK 50 September 2007
m
m
APPENDIX A
Cumulative List of Vascular Plant Species
Observed on Site
APPENDIX A
Cumulative List of Vascular Plant Species Observed onSite
VASCULAR PLANT SPECIES
LYCOPODS
SELAGINELLACEAE - SPIKE-MOSS FAMILY
Selaginella cinerascens - ashy spike-moss
CONIFERS
PINACEAE - PINE FAMILY
Pinus attenuata — bristlecone pine
* Pinus thunbergiana - Japanese black pine
ANGIOSPERMS (DICOTS)
AIZOACEAE - FIG-MARIGOLD FAMILY
* Carpobrotus chilensis - sea fig
* Carpobrotus edulis - hottentot-fig
ANACARDIACEAE - SUMAC FAMILY
Malosma laurina — laurel sumac
Rhus integrifolia ~ lemonadeberry
* Schinus molle — Pemvian pepper tree
APIACEAE - CARROT FAMILY
* Foeniculum vulgare — fennel
ASTERACEAE - SUNFLOWER FAMILY
Ambrosia psilostachya - westem ragweed
Baccharis pilularis - chaparral broom, coyote bmsh
Baccharis salicifolia - mule fat, seep-willow, water-wally
Brickellia californica - Califomia brickellbush
* Carduus pycnocephalus - Italian thistle
* Centaurea melitensis - tocalote
* Chrysanthemum coronarium — garland or crown daisy
Conyza canadensis ~ horseweed
DUDEK 4926-01
A-1 September 2007
APPENDIX A
Cumulative List of Vascular Plant Species Observed on Site
Deinandra [=Hemizoma] fasciculata — fascicled tarweed
Encelia californica - Califomia encelia
Gnaphalium californicum — Califomia everlasting
Gnaphalium canescens var. beneolens - white everlasting
Grindelia campomm var. bracteosum - rayless gumplant
Hazardia squarrosa ssp. grindelioides - saw-toothed goldenbush
Heterotheca grandiflora - telegraph weed
Isocoma menziesii ssp. menziesii - spreading goldenbush
* Lactuca serriola - prickly lettuce
* Silybum marianum - milk thistle
Xanthium strumarium - cocklebur
BORAGINACEAE - BORAGE FAMILY
Heliotropium curassavicum — salt heliotrope
BRASSICACEAE - MUSTARD FAMILY
* Brassica nigra - black mustard
* Raphanus sativus - wild radish
CACTACEAE - CACTUS FAMILY
* Opuntia ficus-indica - Indian-fig
Opuntia littoralis - coastal prickly-pear
Opuntia prolifera — cholla
CAPPARACEAE - CAPER FAMILY
Isomeris arborea - bladdeipod
CHENOPODIACEAE - GOOSEFOOT FAMILY
* Atriplex semibaccata - Australian saltbush
* Salsola tragus - Russian thistle, tumbleweed
CONVOLVULACEAE - MORNING-GLORY FAMILY
Calystegia macrostegia - moming-glory
CRASSULACEAE - STONECROP FAMILY
* Crassula argentea - jade plant
DUDEK 4926-01
A-2 September 2007
APPENDIX A
Cumulative List of Vascular Plant Species Observed on Site
CUCURBITACEAE - GOURD FAMILY
Marah macrocarpus var. macrocarpus - manroot, wild-cucumber
EUPHORBIACEAE - SPURGE FAMILY
* Ricinus communis - castor bean
FABACEAE - PEA FAMILY
* Acacia longifolia - Sydney golden or golden wattle
Lotus scoparius var. scoparius - deerweed
* Spartium junceum - Spanish broom
GERANIACEAE - GERANIUM FAMILY
* Erodium botrys — long-beak filaree/storksbill
* Erodium cicutarium - red-stemmed filaree/storksbill
GROSSULARIACEAE - CURRANT FAMILY
Ribes speciosum — fuchsia-flowered gooseberry
LAMIACEAE - MINT FAMILY
Salvia mellifera - black sage
MALVACEAE - MALLOW FAMILY
Malacothamnus fasciculatus — chaparral bushmallow
MYOPORACEAE - MYOPORUM FAMILY
* Myopomm laetum - ngaio, myopomm
MYRTACEAE - MYRTLE FAMILY
* Eucalyptus globulus ~ blue gum
NYCTAGINACEAE - FOUR O'CLOCK FAMILY
Mirabilis californica — wishbone bush
OLEACEAE - OLIVE FAMILY
Fraxinus velutina ~ velvet ash
DUDEK 4926 01
A-3 September 2007
APPENDIX A
Cumulative List of Vascular Plant Species Observed on Site
OXALIDACEAE - WOOD-SORREL FAMILY
* Oxalis pes-caprae ~ Bermuda buttercup
POLYGONACEAE - BUCKWHEAT FAMILY
Eriogonum fasciculatum vaT.foliolosum - Califomia buckwheat
* Rumex crispus ~ curly dock
PRIMULACEAE - PRIMROSE FAMILY
* Anagallis arvensis - scarlet pimpemel
ROSACEAE - ROSE FAMILY
Adenostoma fasciculatum - chamise
Heteromeles arbutifolia - toyon, Christmas berry
RUTACEAE - RUE FAMILY
* Citrus sp. - citrus
SALICACEAE - WILLOW FAMILY
Salix lasiolepis - arroyo willow
SIMMONDSIACEAE - JOJOBA FAMILY
Simmondsia chinensis — jojoba, goatnut
SOLANACEAE - NIGHTSHADE FAMILY
Datura wrightii - jimson weed
* Nicotiana glauca — tree tobacco
TROPAEOLACEAE - NASTURTIUM FAMILY
* Tropaeolum majus - garden nastmtium
URTICACEEAE - NETTLE FAMILY
Urtica dioica ssp. holosericea — hoary nettle
* Urtica urens - dwarf nettle
DUDEK 4926^01
A-4 September 2007
APPENDIX A
Cumulative List of Vascular Plant Species Observed on Site
ANGIOSPERMAE (MONOCOTYLEDONES)
ARECACEAE - PALM FAMILY
* Washingtonia robusta - Mexican fan palm
CYPERACEAE - SEDGE FAMILY
* Cyperus involucratus - African umbrella plant
IRIDACEAE - IRIS FAMILY
Sisyrinchium bellum - blue-eyed-grass
LILIACEAE - LILY FAMILY
* Agave americana var. marginata ~ century plant
* Asparagus asparagoides — florist's-smilax
Yucca whipplei - our lord's candle
Zigadenus venenosus var. venenosus — death camas
POACEAE - GRASS FAMILY
* Avena barbata - slender wild oat
* Avena fatua - wild oat
* Bromus hordeaceus — sofi chess
* Bromus madritensis ssp. rubens — foxtail chess
* Cortaderia selloana ~ pampas grass
* Cynodon dactylon - Bermuda grass
Distichlis spicata — saltgrass
Leymus condensatus - giant wild rye
* Lolium perenne - perennial ryegrass
Nassella pulchra — purple needlegrass
* Pennisetum setaceum - African fountain grass
* signifies introduced (non-native) species
DUDEK 492601
A-5 September 2007
APPENDIX B
Cumulative List of Wildlife Species Observed on Site
WILDLIFE SPECIES - VERTEBRATES
REPTILES
IGUANIDAE - IGUANID LIZARDS
Sceloporus occidentalis — westem fence lizard
" BIRDS
mm
^ ACCIPITRIDAE - HAWKS
Buteo jamaicensis - red-tailed hawk
^ Buteo lineatus - red-shouldered hawk
m
^ CHARADRIIDAE - PLOVERS
^ Charadrius vociferus - killdeer
COLUMBIDAE - PIGEONS & DOVES
Zenaida macroura - mouming dove
TROCHILIDAE - HUMMINGBIRDS
Calypte anna - Anna's hummingbird
m PICIDAE - WOODPECKERS
Picoides nuttallii - Nuttall's woodpecker
* TYRANNIDAE - TYRANT FLYCATCHERS
M Empidonax difficilis - Pacific-slope flycatcher
M Sayornis nigricans - black phoebe
Tyrannus verticalis — westem kingbird
m
* HIRUNDINIDAE - SWALLOWS
Petrochelidon pyrrhonota - cliff swallow
Hi
CORVIDAE - JAYS & CROWS
"* Aphelocoma californica — westem scmb-jay
Corvus brachyrhynchos — American crow
DUDEK 4926-01
B-1 September 2007
APPENDIX B
Cumulative List of Wildlife Species Observed on Site
^ AEGITHALIDAE - BUSHTITS
Psaltriparus minimus — bushtit
^ TROGLODYTIDAE - WRENS
^ Thryomanes bewickii - Bewick's wren
m
TURDIDAE - THRUSHES & BABBLERS
Catharus guttatus - hermit thmsh
It
^ TIMALIIDAE - LAUGHINGTHRUSH AND WRENTIT
^ Chamaea fasciata - wrentit
* MIMIDAE - THRASHERS
Mimus polyglottos - northern mockingbird
"* VIREONIDAE - VIREOS m
Vireo gilvus - warbling vireo
« PARULIDAE - WOOD WARBLERS
Dendroica coronata - yellow-mmped warbler
Geothlypis trichas - common yellowthroat
Wilsonia pusilla - Wilson's warbler
M EMBERIZIDAE - BUNTINGS & SPARROWS
Melospiza melodia — song sparrow
^ Pipilo crissalis - Califomia towhee
** Pipilo maculatus - spotted towhee
^ Zonotrichia leucophrys - white-crowned sparrow
ICTERIDAE - BLACKBIRDS & ORIOLES
** Agelaius phoeniceus — red-winged blackbird
Molothrus ater - brown-headed cowbird
Mr
^ FRINGILLIDAE - FINCHES
Carpodacus mexicanus - house finch
^ Carduelis psaltria - lesser goldfinch
Carduelis tristis - American goldfinch
DUDEK 492601
B-2 September 2007
m
m
APPENDIX B
Cumulative List of Wildlife Species Observed on Site
PASSERIDAE - OLD WORLD SPARROWS
* Passer domesticus - house sparrow
m MAMMALS
m
DIDELPHIDAE - NEW WORLD OPOSSUMS
W * Didelphis virginiana - Virginia opossum
LEPORIDAE - HARES & RABBITS
Sylvilagus bachmani - bmsh rabbit
SCIURIDAE - SQUIRRELS
Spermophilus beecheyi ~ Califomia ground squirrel
MURIDAE - RATS & MICE
Neotoma sp. - woodrat
CANIDAE - WOLVES & FOXES
Canis latrans - coyote
WILDLIFE SPECIES - INVERTEBRATES
BUTTERFLIES AND MOTHS
PIERIDAE - WHITES AND SULFURS
Pontia protodice ~ checkered white
DUDEK
Ml ^"3 September 2007
APPENDIX C
* Jurisdictional Wetlands Delineation Data Sheets
m
m
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineatfon Manual)
Project/Site: €l Cc>^:>.^ k-a^i Po^^^ tO.Jn^.-^.
Applfcart/Owner C^v c^.f^L.. J J
Investigator: h. F/r^h^-f^ ^. Aff. n'
Do Normal Qrcumstances exist on the site?
Is the site signiTicantly disturbed (Atypical Sitiaiion)?
Is the area a potential Problem Area?
(If needed, expfain on reverse.)
Community ID.-C^oo-^ f A^^
Transect ID:
Plot ID: i . _
m
VEGETATION
pomioant Planl spedes
1- R fCiS^ t\tK 2!-
2.
3-<•
5.
6.
7. ^ ,
B.
Siratum Indkator PofTinant Plant Species Siratum Intficataf
9._
10..
11-.
12._
13-_
14..
15. _
16. _
Percent of Dofrtnant Spedes lhat are OBL, FACW or FAC
<eiaA«finq FAG-}.
Remarfcs:
HYDROLOGY
RecordBd Data (Descrftje in Remarks):
Strsam, Lake, or Tide Gauge
Aerial Photographs
Other
Recorded Data Available
Reld Observations:
Depth of Sufface Water
Depth to Free Water in Pit:
Depth to Satuiaied Sat:
_0n.)
> ii Lrm-)
Wetland Hydrology lmjh:ators:
Piknaiyf WScators:
kwndated
Saturated hUpperianches
.^riftUnss
><Setiment Deposits
DminaoB Patterns in Wetlands
Secondary hdicalDrs (2 or more requred):
Oxidzod Root Channels in Upper 12 hches
Wzter-StaHied Leaves
Local SoS Survey Data
FAC-NDutralTest
Other (Ei^laBri in Remarlts)
Refna/ks: CO''~/^^A.^ Crr^
SOILS
Map Unit Mame ^ . i
(Series and Phase): -Sg//QC^^^ CI Ct
Taxinorn^ (Subgroup): / c: < t
Dratnage Class:
Field Observations
Conrirm Mapped Type? Yes (^^^
PmffleOcscfH^on:
Depth Matrix Color
f^msell Moists
MotHe Colors
{Munsefl MoisU
Mottle Abundance/ Te;dure, ConcretioRS.
Stnidufe.jsic.
/c»a*yi,<i gQCty.f'g f^O-^^C/L
con rye SiS^^-r^
I
Hydric Soil Indicators:
Hsiosol
Hsfc Epipedon
SuffidicOdor
A()iMC Moisture Regime
Reducing Conffitkirw
Gicyed or LowChroma Colors
Concretions
Hgh Organic Content in Surface Layer in Sandy Sdls
Organic Streakn>g in Sandy Soils
listed on Local Hydric Soils List
Usied on tefional Hydric Soib List
Other (B^jlain in Rertarks)
Remarks: >Jo
WETLAND DETERMINATION m
1
HydFOphyfic Veoetafion Present? "fm ^)(CircIe)
Wedvxl Hydrology Present? C^)jin^
Hydric Soils Present? Yes^^]^
(Ciide) 1
b this Sampling Point Within a Wetland? Yes
1 «•»
m
Remarks: uJaZi^ CL ^ . 1 1 1 f f f Approved tiy HQUSACE a^SZ
ii
ii
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Marujat)
Appiicart/Ownen
Investigator 2^ k. Hu n'.
Do Normal Circumstances exist on the site? ^
Is the site significantly disturbed (Atypical Situation)? Yes
Is the area a potenlial Problem Area? Yes
(If needed, explain on reverse.)
Date:
Cointy
State:
Comminity ID: /?o int^tJi
Transect ID:
Plot ID:
VEGETATION
Dornnmt Plmt Soedes Stratum Intficetor DofTinarrt Ptant Soedn Smtum hdlcator
m fl
m 1ft. m
11
m 1? m «; ia
m A \A
IS
II 1#i
m
mm
Pcrcem or Doirtnant Species that are CBU FACW or FAC
(eidudinq FAC-).
IM Remrks:
mm
HYDROLOGY
Recwded Dasa (Describs In Romartcs):
Strvam. lake, or Tide Gauge
Asrial Ptiologfsphs
Oflisr
XMoRacocdodDataAvafeible
FMd Observalkjns:
Depth of Surface Waier:
Diph to FfM Watw in ra:
Depth to Sabffated Soil:
> If" On.)
Wetland Hydntogy Mcaiors:
Primary hOfcators:
Inunctatod
Sakimed in Upper 12 hches
VlwiattJbito
Dim Lines
Sediment Depostts
DiBRMge Panems in Wetlands
Secondaiy hdcstafs ^ or more recMrsd):
Oiddbted Root Onnnels in Upper 12 kiches
WaMr-Stainetf leaves
Local Sol SwwyDola
FAC-NBuWTest
Other (Eifilain in Remarks)
SOILS
Uftp UcA ffame c" / / / o ^
(Series and Pt>ase): /r pt-,^ cf^^t. laat-^ ^ D - H
Tamnonv{Subgroup); Co/crV P^^lt't- l-fyJa^Crall
DrainageCiass: pyaiyXji ra'^f.
Field Obseivations
Confirm Uapped Type? No
Prfrfite r>eaerinlion:
Depth Matrix Color
/^insell Motet!
Mottle Colors
{ttinsell Motjtt)
Mottle Abundance/ Tejdure, Concretions,
Slnjcturp. ftC.
f^drte Soil hdicators:
HslosoI
Hsiic Epipedon
, SulWicOdof
Aquic Moisture Regime
Ftedudng Conditions
^ Gleyed or UwChrome Colors
.Concmipns
. Hfgn Organic Confenl in Surface Layer in Sarvdy Sals
. Organic Streaking in Sandy Soils
. listed on Local Hydric Soas List
. Lisud on terional Hydric Soils Ust
. Othw <Bq}tain in Remarks)
Ftemarte:
WETLAND DETERMINATION
Hydropfiylic Vegetation Reserd?
Wetfand Hydrology Present?
^VdfK SoOs Present?
Yes
Yes
'(Circle) (Chde)
Is this Sampling Potnl Within a Wetland? Yes
to/ ''Ocycf^
ApptDwed by HQUSACE a«2
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Proiect/Sfte: £1 CcL^t^^ R-ec^/ ??o,sr./ O.Jtww%
Applicart/Ownen
Investigator k. H
Date
Coir
State:
County: F^ J
Do Normal Circumstances exist on the site? ^
is the site significantly disturbed (Atypical Situation)? Yis
Is the area a potential Problem Area? Yes
(If needed, explain on reverse.)
Community ID: ^at ^^iJo^
Transect ID:
Plot ID: J>£
VEGETATION
Oorrmarrt Pfari SoedeS Stratum indicator Donwisnl Hant Soedes
===========================
stratum Int^KH'
1 AWj-f.L.fX^ clvUtuXu^ T fi
in
11
4 19
>; ia
a. 14
7 1«
A. 1fi
Percent ot Dominant Speoes Viai are OBL, FACW or FAC
(eNdudinq FAC-).
1 Hnnarks:
HYDROLOGY
Recorded Gala (Descrito in nemarte);
Sttaam, Laica, or Tide Gauge
jtorial FWographs
Other
XNO Recorded Data Available
Field Obsenatens:
Depth of Surtace Walen
Depth to Ffee Water in Pit:
Depth to SatufBted Soil-
-On.)
Wetland H^iclooy hdicators:
Primary fexScatofs:
kuKtaled
Stfunted in Upper 12 hches
W^Mairts
Diift Lines
Sediment OepQSlis
Drafewge PMerm in Wedands
Secondaiy bdicators (2 or tnore reqwred):
Oiadized Root Channels in Upper 12 hches
Wsttr-Stahed Leaves
Local SoS Sufvey Data
FAC-Neutral Test
Other (&viah in Remarks)
Remvtts:
SOILS
Map unB Name - | . . ^ »
{Series and Phase): //^O^ Clao /OQ l-^ ^ J> ^ ^ /<»
Tatooomf (SubgnxipV: Cfr/
Dranaoe Class: /yic^Xa. ya 7^
FieW Obsenvtions _
Confirm Iwlapped Type?
Pftrfile l>smptiQn:
Oepin Matrix Color
fMunseH Mnistl
Mot0eCok»«
fMunsel ty^ilsO Mottle Abundarux/ Texture. ConcreSno.
Slmaure t^f.
hydric Soil hdicators:
Hstosol
Hstic Epipedon
SuSdicOdor
Aquic Moisture Regime
Reducing Concfltions
Gleyed Of towOirofTB Colors
Concretions
Hgh OrganicConnnt In Surface Layer in Sar^ Soils
Organic Streakhg in Sandy S<«B
Listed on Local tVlrtcScib Ust
Listed on Nattonai Hyddc Sons List
Ottier (Bqslain m Remarks}
1 Remarks: /Jy h^J^i'c Sta/j^^
WETLAND DETERMINATION
Hydrophyfic vegelalian Present?
Wedand Hyttalogy Praeem?
Hydric Soils Present?
{Circle)
this Swnplmg Point Within a Wedand? Yes
Remarks:
Approwed by HOUSACE 2^2
m
m
m
m
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Pfoiect/Site: £"/ Cg^^:^^ R»ec^/ Ro^^^ OJ-Jo^w
Applicart/Ownen
tnuestigalor: t^. HurL
Do Normal Circumstances exist on the site?
Is the site signlficantfy disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
Date,
County
State:
Ttyrwl
Commuiity ID: S<-^S
Transect ID:
Plot ID: QS2_I
VEGETATION
rVirrinMit Plant Soedes Stratum trKflcaior Dorrinant nam Soedes Stratum Indicator 1
fl 1
10
11
4 1?
\%
\k
7. IS
ft IK
Peresntcf Doii*tanl Spedes ttiat are OBL FACW or FAC
Jeiakjdino FMM.
1 Remarte:
HYDROLOGY
Recorded Dafa pescrftw in Remarks):
Stream, Lake, or Tide Gaige
Aerial Photographs
Ottier
XNO Recorded Data Avattabte
Rekj Observatnns:
Depth ol Surface Water.
Depth to Free Water in Pit
Depth ki Saturated SoH:
> li" f.n.)
Wedand H^dralogy hdk:alors:
Primary hdicators:
hmdated
Saturated h Upper 12 hches
Water Marks
Drift Lines
Secfimert Deposrts
Drainage Pa«ems in Wettafxis
Secondary hcScators (2 cr more required}:
Ondzed Root CJiannels in Upper 12 hches
Water-Stained Leaves
Local Soa Survey Data
_2(j:AC.NoutralTest
Other {Explain h Remarks)
Remarks: /-'e'^iu/^P^tiL. cy^ Ayi^^-fc^y, Sot^frpi^ pai^J-'~S 3-f'
SOILS
Map Una ttome
(Series and Ptiase): Drainage Class: _
ft- n>-—^jt /J . ti Field Observations
Ta«nom>r(Sutigroup): ^Cr/c*t t^C^h-^ V e^^O// Confirm Mapped Type? ^^No
ProHe DesCTkwion:
Depth Matrix Color
fM«rwBll Mni51>
Mottle Cokirs Mottle Abundance/
JO Vp.yg,
Texlure, Concretions.
Stmaui^. etc
Hydrk; Soil hdicators
Hstosof
Hsiic Epipedon
SutUicOdor
Aquic Msisfiire Regime
Reducing Conditions
Gleyed or Lo«K>irorrB Cotors
Concretions
— Hgt) Orgaidc Content in Surface Layer in Sandy Setts
_ Organic Streaking in Smdy Sotts
Listed on Local >V(ricSoBs List
Listed on Nattoral Hydric Soffs List
Othef (Eji^in in Remafk^
Remarks: /f^ hjdy.T- SOi'C t ndXcoJ^S .
WETLAND DETERMINATION
Hydrcphylic Vegetation Present?
Wetland H^rok^ Present?
Hydric Soils Present?
Nb (Circle)
Yes^^
Yes.
(CifcJe)
Is Ws Sampling Point Within a Wetland? Yes
Remarks:
P
111
Approved by HOUSACE 3^
m
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
I Project/Sf Project/Site: £/ Cn^^f^^ R-gr^f /?or.^/ 6J.JQ^W
I Applicant/Owner O-Av o-f Ca ^fe^
Investigator T>. Fff^ht^r^ jc. //a
Do Normal Circumstances exist on the site? ^
Is the site significantly disturbed (Atypical Situation)?
Is the area a potential Problem Area? Yes
(If needed, explain on reverse.)
tfv: SQ.V/ Di^ft
Date
County
State: C>4
Commifiity ID: ^rass/^^
Transect ID:
Plot ID: OS JS^
VEGETATION
Dominant Plant Soedes Stratum
~7?~
hdkator
1 ^orti'dJum yu/fi&rO-ft
10,
11.
Ii.
13.
14.
la
IB
DotmtBfYi Planl Soedes Stratum hffipalor
mm
Perowit o( Oonhanl Species that are OBL, FACW or FAC
(exdudinq FAC->. a3%
M Remarks: /pa-/,)sexl cr.^pU3^ -\c*-»T^
mm
HYDROLOGY
m
m
1 Recorded Dafa (Describe in Remarks):
1 Snam, Lake, or TMe Gauge
Aeriainiotographs
other
X>fe Recorded OalaAvaa^
Wettand Hydratogy hdcators:
Primary Incficatois:
Kndated
Saturated in Upper 12 hches
WA Maris
Drift Unas
Fieki Observations:
DefMh a( Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Sofl:
AJ/A nn.1
Sedbnent Deposits
DtainBge Prteme in Wetlands
Secondary hdicaiors (2 or more reqiared):
OiASzed Root CTormete in tapper 12 hches
Fieki Observations:
DefMh a( Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Sofl:
> /Y" f«.^
Waier-Stained Leaves
Local SoaSunvy Data
Fieki Observations:
DefMh a( Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Sofl:
FAC-NeutialTest
Other (Explain h Remarks)
Fieki Observations:
DefMh a( Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Sofl:
j Remarks: J2.u/rU^tja_ ^ Atj<tvci/o^ 0^e*-'J*<=^. f^r^A 'S c^f>proiC.
SOILS
Map unit Name ^ .
(Series and Ftiase). ..Sg //.^c-S
Taxmonv (Subgroup); , Cc*/ <;rV t-i^o\ ^ro II
Drainage Class: mcj-Xsi ra 7^^
FieU Ot>£ervat)0ns
Confinri Mapped Type? Yes ^No)
Description:
Depth Matrix C<^ MotHe Colors Mottle Abur)dance/
Sw^jwitrast
Teidure, Concrettons.
Stnicitirp fitq,
Hydric SoS hdkators:
ttslosol
hf stic Epipedon
SulBdicOdor
Aquic Moisture Regime
Reducing Conditnns
Gleyed or LowOiroma Coiors
.Coneretiems
Organic Content in Surface Layer in Saraly Sotts
Organic 5a«ald>»g in SMidySoBs
Ll^ on Local Hydrk: SoOs Ust
Listed on htattonal ^V1^
Other (Explain ir» Rematk^
Remarks:
WETLAND DETERMINATION
M-T—W-f—^ — —.. . I • .
Hydrophylk: Vegetaltcn Present?
Wetland HydrcJogy Present?
^V^Soite Presertf?
(Circle) (Cinde)
b this Sampling Point Wittwi a Wettarxl? Yes f^o^
Remarks:
Apprmed by HQUSACE 3/92
mm
m
DATA FORM
ROUnNE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: £1 Cg^^;^^ fi-gfa./ ??o.-,^/ tO.Jg^w
Appficant/Owner
Investigator T).
Do Norma! Circumstarx^s exist on the site? ^
Is the site significantly distubed (Atypical Situation)? Yes
Is the area a potential Problem Area? Yes
(If needed, explain on reverse.)
Date:
County
State:
i/05/o(^
CA
Comnunity ID:Cjpg)^ cke^Aj
Transect ID:
Ptot ID: £>S
C
m
m
i Dominant Plant Soecies Stratum hdicator Dniriniinl Plant Soedes Strahim indicalor |
ft 1
1 9
1 11. I
4
A 14 1
7. IS . - j
R Ifi 1
i F^ioenlotDoninant Spedes thai are OBL, FACW or FAC
(eK*idino FAC-).
Remarks:/Ue^ - i'-ej«--C<t«^ ^'•^^'^ £X.tJi'i^ c^Ao-ft^C.
HYDROLOGY
Recorded Oalapescriba in Remaita):
Stream, Lake, or ride Gxige
Aerial Photographs
Other
_XND Recorded Data Avaflable
FieM Obseivalkxis:
Depth of Surface Water
Depth to Free Water in Pit
Deptfi to Saturaiad Soik
^/A on-)
-Cm.)
wetland Hydrology hdicators:
Primary hcScators:
hundaied
Saturated in Upper 12 hches
Water Muks
_^><t>nn Lines
Sedinenl Deposils
Dmina^e Psttoms in Wetlands
Secondary hdicaBis (2 or mors required):
OwSzed Root Channels in Upper 12 hches
Water-Stahod Leaves
Local $o8 Survey Data
FAC-MButialTest
Other {E;«]tain in Remarks)
,5 0¥C^-yr^ M^AMl^ ^Ir'Lc^ ct^n^L.
SOILS
Map Uhil Uame
(Series ar>d Pttase):
Taxmorry (Sut>group)
Depth
Uocttsal. HartTon
Drainage CUass: ,/>l c/r/fl- rg Yl^
FlM Observations
Confirm Ittepped Type? Yes No
MacrixCotor
(Munsea Moifii) Mottle Ccdors
fMunsgH Mois^>
Mottle Abundance/ Te;ffure. Concretions.
StrtiCture, ^nc.
/ejq/w^ CoqT.re. Seur-xi
H^rk: Sofl hdkators:
Hstosol
Hsiic Epipedon
SuflkfieOdor
Aquic Moisture Regime
Reducing CorKHtkms
Gleyed or LowOirorm Cokirs
Concrettons
Hgh Organk: Content in Surface Layer in Sandy Sofls
Organk: Streaking in Sandy Soils
Listed on Local t^lfk: Soils List
Listed on Nattonal Hydrk: Soils List
Other (Eiplah in Remarks)
Remartts:
WETLAND DETERMINATION
hVdroptiylk: vegetation Present?
Wedand Hydrology Present?
^Vlrtc Soils Present?
Remarks:
Approved by HQUSACE 3/92
•I*
m
H
m
DATA FORM
ROUTINE WETLAND DETERMINATION
(1967 COE Wetlands Delineation Manual)
Prpject/Sile: £/ CCLW^:^^ R-<^/ go^^/ LJ.dd^y^
Appficant/Owner
Inwestigator 7^.
Cft !> fe4r^ j
Do Normal Circumstances exist on the site?
Is the site significantly disturtsed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
Date:
County:
State: CA
rTty: Say/ Pi
Commtnity ID: -560-5
Transect ID:
Plot ID:
VEGETATION
Dongwrt PLMTI Soedes Stratum hdieator
FA<UAJ
Dgmiranl Plant Sttedes Stratum Indkator
10^
12. _
13. _
15. _
16. _
Percent of Doninant Species that are OBL, FACW or FAC
{eigckidirHi FAC-).
Remarks:
HYDROLOGY
Recorded Data (DescrftM in Remarks]:
Sbeam, Lake, or Tide Ciauge
AeiW Photographs
Other
XNP Recorded Data Availabia
FiekJ Observations:
Depth of Surface Watei:
Depth to Free Water n Pit:
Deptfi to Saturated SoH:
M/A .fm.)
XJ^L f«.)
Wetland t^dn*)iiy hdK:alors:
Primary hcicams:
huniUed
SahHMed in Upper 12 hches
Water fcterio
A Drift Lines
JxCSedment Depositt
i^yoiainaoe Paoems in Wettwrfs
Secondary todfcatoJB (2 or more required):
OiKlzed Bool Channels hl^pper 12 hches
WHer-Stained Lsmres
Ucal Sol Survey Data
FAC-NeulralTest
Other (Eqiiain in Remarks)
Remarta:
SOILS
Map Lhfl tiame ^ . .
(Series and Ptiase); /> ^C-S Ol ^
Tamnomy (Subgroup): CtuI ci't
Drainj^e Class: /nr-^Xi m 'f'^
FieU Observat»or«
Conlinn Mapped Type? Ye* No
Profile PesKriptton:
Oepirt Matrix Cokir
IMunseH MoisH
Monte Cokirs
fMunaBB MolMl. Mottle Abundance/
Sjft/CoraraBt
Tenure. Concretions,
Slmeiuf*. ein.
Hydric Soa hdicators:
Hsiosot
Hsifc Epipedon
SulidfcOdor
Aquk: Moisture Regime
Reducing Condaions
Gleyed or Lon^Chroma Cok»rs
Concretions
Kgh Oganic Content in Surface Layer in Sandy Soils
Organk: Streaking h Sandy Soils
Listed on Local Hydrk: Softs List
Listed on Natkmal Hydrk: Softs List
Ottter (Eiqpbin in Renr»rks)
1 ftwrarlis: /U«a h^MyC^ So. i
WETLAND DETERMINATION
fl Hydrophytic Vegetatian Present?
1 WsUvtoHydrokigy Present?
1 Hydric Soas Prosent?
JCM ^3[Circle)
<^> Mo
(Circle)
b Ws Sanq;!^ Po»it Within a Wetland? Yes
Remarks: tIM
m
mm
Approved by HQUSACE araz mi
mm
Ha
•I
Project/Site: €1 C
Appficart/Ownen
Investigator T>.
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
FUthrt^f
Cft r I^Lt\ J
Date:
County: SQ.V/ but^^
Stale:
Do Nonnal Qrcumstances exist on the site?
Is the sKe signiftt^ntly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
CommuTfty ID: ^
Transect ID:
Plot ID: OS g
VEGETATION
pnnjfi^t Plant Soecies Stratum htflcelor Dofrinent Want Soecies Stratum hwficator
o
•> BoiM rl^ ft-^ p."/u.i<Xr^ ^ ^/ in
11
4 1'
C in
7 IS . 1
fl •»« — 1
Percent ol Dorrtnant Species that are OBL, FACW or FAC i rs'^-
(aaiudinQFj^). U7f JO
Remarks:
HYDROLOGY
1 Recorded Daia (Descrtos in Remarks):
1 snB«n,tBl«e, or Tide Gauge
1 Aerial Photographs
1 Other
j X No Recorded Data Awatlable
Weltand Hydrdogy hdicators:
Prim^ hdtealois:
hundatsd
Saturated in Upper 12 hches
Water Marks
Drift Unas
Sedinart Deposits
DfHnage Ptfeira in Wetlands
Secondaty hdkiaUrB p or more retired):
OndizedRoolChanneteintJpper 12 hches
Water-StBhed iMves
Uxal So* Survey Data
J_ FAC-NautrilTest
Other {Eifilain in Remarks)
1 FieM Obeenotkxis:
j Depth of Surtace Water ^/ A fm.)
1 / *'
1 Depth to FiBe water in Pit ? il (m.)
Weltand Hydrdogy hdicators:
Prim^ hdtealois:
hundatsd
Saturated in Upper 12 hches
Water Marks
Drift Unas
Sedinart Deposits
DfHnage Ptfeira in Wetlands
Secondaty hdkiaUrB p or more retired):
OndizedRoolChanneteintJpper 12 hches
Water-StBhed iMves
Uxal So* Survey Data
J_ FAC-NautrilTest
Other {Eifilain in Remarks)
SOILS
Map LhK ^^me
(Series and Phase):
Taxmonif (Sutigroup):
Orahage Class: rUt^Xa. ra tt.
FieM Observations
Confinn Mapped Type? Yes No
Depth
ljQ£b^ Horfaort
Matrix Cokir
tMutaea Mpist)
Mottle Cotors
fMunsgB Mnlft) Motne Abundance/
affi/OfliTirast
Tejtfure. ConcreBons.
SitaighiaL-filCi
0-/0
Hydnc Soil hcficators
Hstosol
Hsiic Epipedon
SuHtofcOdor
Aquic Moisture Regime
Redochg Cond«k)r»s
Gleyed or LcwChroma Colors
Cofxrelions
Hgh Organic Content in Surface Layer in Sandy SoHs
Organk; Streaking in Sanity SoHs
Listed Local Hydric SoOs List
Listed on Nafional Hydric Soils List
Other (Ej^h in Remarks)
WETLAND DETERMINATION
Hytfrophylic Vegrtafion Present?
Wettotd Hydrdogy Present?
Hydric SoOs Present?
(Circle) (Ciide}
Is this Sampling Point Wittwi a Wetland? Yes
•lit
Remarks:
Approved by HOUSACE a'92
m
m
Mil*
ma
m»
mt
Ml
DATA FORM
ROOTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
•I
Project/Sile: £/ CQ.>V>.'^^ fi-ot^/ ??o^^^ U}.^a>»Jiv^
Applicart/Owner C'4v o'f Ca^/<iko J
Investigator 7^. F/r^ht^y, /r. Ni^r!.
Do Normal Circumstances exist on the site?
Is the site significantly disturbed (Atypical SitLBtion)?
Is the area a potential Problem Area?
<lf needed, explain on reverse.)
Date: yoS/OfU
tfy: SQ-W Pi County
State: CA
Commifiity ID: G-raas/o-*^
Transect ID:
Plot ID: ^
m
m
m
i
VEGETATION
H Oorrrinent Ptant Soedes Stratum hdtoator Domtnant Plant Soecies Slrstum hdtoator
1 1 Pj^ifC/f/s -^^'aye^ ^ /U/ »
in
i 3. J^^ee Ui>.^'c Si. /l, /o r/^ 11
i 4. 19
1 IS
1 ^ 1*
i ^ •
IS.
1 Ifi.
1 Percent or OonlnanI Species that are CBL, FACW or FAC
B (eMdudlnqfAC-). <::>%
y Remarks:
HYDROLOGY
m
m
m
Recorded (Wa (Desciftio in Remarks);
Stream, Lake, or TMe Gauge
/terial Photographs
Other
X No Recorded Data Aaflabte
FieMObservBlnns:
Depth tif Surface Water.
Depth to Free Water in Pic
Depffi to SAirated SoB:
-fm.)
-On.)
Wetland Hydfotogy iKicators:
Primary tidkators:
hundatod
Saturated in Upper 12 hches
Wetarhbiks
DiiRUnes
SetSment Deposte
Drahago Prtena in Wetlands
Secondary hdcators (2 or more required):
OiotSzad Root Channels h Upper 12 hches
Waier-SiBinBd baaves
Local Sol Sotvey Data
FAC-MBUbUTest
. Other (Explain in Remarks)
SOILS
Map Unit l^me ^ , . .
(Series ana Ptiase); Qg Ii fyt,^^ ^
Tajonorry (Subgroup); Co/c/t PcLC^^'t, I'^'^d'^i ^rq If
Profite Qeseripiion:
Depth
Oratnage Class. fnc^XA. m 7^.
FiekJ cSwervationa
Confirm Mapped Type? Yes C^L^
Matrix Cotor
IMunseU Mrysti
Motse Colors
fMunseH Mntetl Mottle Abundance/
Si»^;;;qplraxt
Teilure. Concrettons,
StniaunLji&
hVdric Soil tTKficators:
HslosoI
Hstic Epipedon
SuBidicOdor
Aquic Moisture Regime
Reducing Cor«J«ions
Gleyed or ljnK3iromB Cotors
Cofjcrettons
Hgh Organic Content in Surtace Layer in Sandy Soits
— Organto StreaUng in Sandy SoHs
Usied on Local Hydric Sofls List
Usied on Haitonat Hydric Soits Ust
Other (E^slah in Remarks)
Remarks; / 1_ / / ^
WETLAND DETERMINATION
1 Hydrophytic Vegetation Present? Yes G ^(Ckcle) {Circle} 1 1 Wattand H^rotogy Present? Yes Q
^(Ckcle) {Circle} 1
1 Hydiic Soils Present? YesQ Is iTus Sampling Poht Within a Wetland? Yes 1
Remarks:
fli
m
mm
mm
mm
Appmred by HQUSACE ar92 mm
mm
M»
ail
DATA FORM
ROUTINE WETLAND DETERMINATION
(19B7 COE Wetlands Delineation Manual)
Do Nonnal Circumstances exist on the site?
Is the site significanUy disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
Community ID: /?^0
Transect ID:
Rot ID:
m
m,
m
VEGETATION
ponwianf Plant soedes Stratum Indicator Doninant Plant a>ecies StTBtom Indicator
1 P»-ci\//.juj>! irrJu A'Vso. 7" F^A<XAJ A
9 C^L. d >^^V ^e.fUaMiu- S AJ t 1ft
11.
i. 12.
K ia
fi t4.
1 7 IS.
1 115
i Percent of Dominant Spedes that are OBL, FACW or FAC
1 (enludirw FAC-).
1 Remarks:
HYDROLOGY
RsconfedOacafDesciAMin Remarks}:
Stieant. Lake, or Tide Gauge
Aerial Photographs
OJher
Xffe Recorded Data Ayatafcte
Field Observations:
Depth of Surface Water:
Dep«i to FfBO Water in F%
Depth to Stfurtfed SoK: -en.)
wetland H/iratosff hdkators:
Primary hdedois:
hundated
Sabiraled in Upper 12 hches
Water hl»ls
_2£{Mtbnes
Sediment Deposits
Dranaoe Ptflems in Wetlands
Secondaiy bcScators (Z or more required):
Oxidized Root Channets h Upper 12 hches
Water-SainBd Leaves
Local SoflSuivey Data
FAC-NeoWTest
. Other (EiqjtainhRemarlts)
Remaits: ^u^o (Zrc-c*J
SOILS
Map Uiil tome e- i I I <^ *i (Series and Phase); I!^uS^ CI rat. /QQW7JJ>-T/O
Taxmomy (Subgroup);.
Drainage Class; m^XA ta "f"^
Field C»)sefvatior»s
Confimt Mapped Type? /v»^ No
PrqPe Deger^ptigfi:
Depth Matrix Cotor
fMunseU MoiMI
/o
Mottle Cotors
fMunseB Mni.tt1 Monle Abundance/
Sl^'^ontraftt Tenure, Concreiiofts. Slnieliife Me.
Hydric Soil hcficators:
Hstosol
Hstic Ep^iedon
SoJWicOdof
Aquic ktoisture Regime
Redudnfl Conditions
Gleyed or Low-OirorrB Cotors
Concreiiwjs
— Hgh Organic Content in Surface Layer in Sandy Soils
Ot^snic StreaMng in Sandy Sols
Listed on Local Hydric Soils Ust
Usted on Utfonal Hydric Soils List
— Other (Eifilah h Remariis)
WETLAND DETERMINATION
Hydrophylk: Vegetation Present?
Weflwid Hydidogy Present?
tVd(«c SoOs Piesenr?
(Circle)
b this Sampling Point Within a W«Iand? ^^s
Remarks:
m
llH
Ml
ra
mm
Approved by HQUSACE 3^92
•IW
mm
Mil
mi*
Ml
m
m
m
m
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: €1 Ca^>^:^^ A-g^./ tO.Jfw^^
Apf^icant/Ownen
Investigator Ti. FA
Do Normal Circumstances exist on the site? ^
Is the site signtficantly distubed (Atypical Situation)?
Is the area a potential Problem Area? Yes Oio"
fif needed, explain on reverse.)
Date:
Court
State:
County: feo./ biifc^r.
CA
Comrmnfty ID: .Sco3
Transect ID:
Plot ID:
VEGETATION
Ii
m
i nrnnmrnt Ptant Soedes Stratum Indicaln' Doninant Plant Soecies Stratum hdkalor
i 1 r /CL^; n io£>/.i 7 FA<LU> o
in _
.1 11 • ....
1 15
1ft
A t4 . . ..
7 . 15.
fl Ifi
Percent Of DcHTfetant Species that are OBU FACW or FAC
(eKdudhoFAC-).
Remarks: ^ti^hf^ ^M-O /Cc7t> C L'^&V ^ 0>T-6:v.ifc-^^ CCr>'<^ ^j^pfO^ S^S^/o -
HYDROLOGY
Recorded D2apesciibe in Remarks):
Stream. Lake, or Tide Gauge
Anial Photographs
Other
XNO Recorded Data ANoflable
-On.)
FieMObservatiDns:
Depth of Surface Water
Depth to Ffoe Water « Pit: ,
Depth K) Saluralec} SoiL
Remarks: Sc*. fnp>OL o;/CT^
WeilVK) ^VMogy hcScaiors:
Primary MictfiHs:
^^inurid^ed
Saturated in upper 12 hches
J^^itftUnes
Sednient Deposits
Dfaineoe Paitoms in Wetlsnds
Secondary hdicators (2 or more reqirired):
Ojadzad RootCharvtets h Upper 12 hches
Waler^t^ned Leaves
Local Soa Survey Data
FAC-Neutral Test
Other (Bfilain in Remarks) Z {tn.l umer (tufiiam«nemantsf
SOILS
Map LWI tteme _ , . . »
(Series and Phas - Qg It nf^ Ct en. /OQ ^ * *T
TaiK»ioiny (Sut>gn <'0): Cc*l CJt-
Dratnage Class;
ReU ObservMicms
Corrfimi Mapped Type? Yes ^to)
Profile Descfiprittfi;
Oepm Malilx Color Mottle Colors
f^AmscB Moist) Mottle Abundance/ Teitfure, Concretions.
Structure, etg.
/O
Hydric Soil hdicators:
rtslosol
rtstic Epipedon
Suffidic Odor
Aquic Motstufe RegtfTie
_fteducinfl CoTKHions
JJ^Ieyed or LovK^roma Colors
Concretions
Hgti Or^nic Content In Surface Layer in Sandy Soils
Organic Sbeskirtg h Sandy Scds
Listed ofl Local M/dtk: SoXs List
Usied on tefonal Hydrk: Sons List
Other <Eq>iah in Remarks)
Renarks:
WETLAND DETERMINATION
a HydrophySc Vec^s^on Present?
H WellandHydFOk)^ Present?
1 hydric Soils Present?
No (C^le)
Mo
<S No
(Ctrde)
Is this Sfunp&ig Poim Within a Wetland? *^
Remarks:
m
m
m
mt
Apprwed by HOUSACE
•Ml
m
m\w
MIk
m
m
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: £/ CcLf^j^^ fi-gfa./ go^^^
Appficanl/Owner C'4v o"f Co ^ W
Investigator 'Pi. F/z^'-hn-f^ ^. //c
Do Normal Circumstarx;es exist on the site?
Is the site sigraTicantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
<lf needed, explain on reverse.)
: yi2/o^
County: D-.^fs
CA ^
Date
Cour
State;
Commuvty ID: .'^^-S
Transect ID:
Rot ID:
VEGETATION
m
m
m
m
1 ncvrdnant Plant Soecies Sratum hdicakir Oomnerrt Plant Soedes Slmkim hcBcaior
1 1 ^<l//> It.SJfiUK^fS, f FA<MJ s
•» r^f^di^;c^ ^tl S U{ ift
11
A 19
ia
A \A
7. 1 — fl ifi
Perceid ef Domifiant Species that are OBU FACW or FAC
<e»dudinQ FAC-).
Remortts:
5c//X aJ^S^'-^^i^^ pra^o-ry^/i
HYDROLOGY
RecwdKl Data (Describe m Remarks):
Stream, Uke. or ride Gauge
terW Photographs
J^ND Recorded DMa Available
Field Obserwfions:
Depth o( Surface Walen
Depth to Fno Water in Pit:
OcfA) to StfuiatBd SoiC
Remeifs:
^/A fin)
> li" fa)
W«Iand Hydrology hOcaiors:
Primary hdfcators:
Inundaled
Samnaedln Upper 12 hches
Wslwlvbrts
DiinUnes
SecSmern Depcshs
Di^neffe Ptftame in Wetlinds
Secondaiy hdtoaiors (2 or more retpired):
Owfeed Root Channels in Upper 12 hches
Waier-Stakied Leaves
Local Sol Survey Daia
FAC-NeuMTcsl
Other {^3^*Bin In Remarks)
FAC-MBgWT«si
iptf) to Stfutated Soil: ^ /V fm.) „ Other (E:iq3lain In Remarks)
J
SOILS
Map UiH Home ^ ,
(Series and Phase): //«->C-^
Tax>nomy (Subgroip:'
O^ase Class: •natr-.^XAYa t^.
Field (%servaions
ConfUm Ma(9>ed Type?
ProBi' tV».-«ription:
Depth tincftes) Hnii2Pn
Matrix Color Mottle Colors
fMLinaeH Motan Motfe Abundance/ aawTKmirflfit Texture, Conor^ions.
Hydric Sol hdicators:
Hstosol
Hstic Epipedon
SuHdicOdor
Aquic Moistire Regime
Reducinfl CondJlionB
^ Gleyed or LovK^irama Colors
Concretions
— Hgh Organic Content in Surtace i.ayer in Sandy Soils
O^nic StreaMng in Sandy Soils
Listed on Local Hydric SoHs List
Listed nt tMonal Vi/iiik: Sorts List
Oaier(E]t}tahh Remarks)
Remarks;
WETLAND DETERMINATION
Hydrcphyttc VegetaSon Preeem?
WetUtd Hydtdoey Prasenrr
Hydric SoOs Present?
(Clrcte)
k this Sampling PoM WltTwi a Wettand? No
IIBI
•IM
IM
m
m
m
m
m
a*
mm
mm
Approved by HQUSACE 3^
IMI
•IV
Mi «• IKl»
m
m
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manuel)
Project/Site: £/ Cc^p^:^^ R^/ R'o^^/ OJ.JQ^W
Appficant/Owner
Investigator
Do Normal Circumstances exist on the site?
Is the site signrficantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, exptain on reverse.)
tfv: D; CouTty
State: CA
Commmity ID: So^>S
Transect ID:
Plot ID:
VEGETATION
m
Doninant Planl Soedes Stratum htScalor Darrinant Ptard Soedes ^ratum indicator
m fl
m 1ft m
11
m 4 13. m
*; 13
gl U
7. IS.
PI fi. IK -
m
mm Peicent ot Oontoanl Spedes Itiat are OBL. FACW or FAC
<eiOudinq FAC-1.
m Remarks:
-
m
m HYDROLOGY
Recorded Darn (Descibe In Ftamarks):
Streem, Lata, or Tide Gauge
ABTtal Photographs
Other
J^ND Reconled Data Available
Field Obeenialtons:
D^ ol Surface Water.
Depth 10 Free Water in nt:
OefMh to Stfuiaied Sol:
Wettand r^rctogy hdcaiars:
Primary hdfeaiors:
hottted
Sttmled in Upper 12 hches
Watorlitote
DffRUnes
SedmaMDcpeelis
DrtfhiQePMernelnWeitsnds
Secondeiy MicMats (2 or more reared):
Ojbaied RortChanneb in Upper 12 hches
Water-Stained Uerves
Local Sol Survey Data
FAC-MauUilTest
Other (EsvlBh in Rcmeriis)
SOILS
Map unit r«me — . . . »
(Series and Phase). OQ //ofr-S Cfot^ /csQ ^ - /a
TamnoiTy <Subgro.>p;^ Cc« / c U ^ «<. l^^^tj V € rO //
Dra«a9e Class; ^^.rJji. ra 7^
FieM Observataxu —
Confinn Mapped Type? Q[es/ »ki
Profile DeacripiiofL
Depth Matrix Cotor MMOe Colon
fl&IQBtidQi&t!
MMtle AbwidaRce/
SzEiCorHragu
Teature, ConcrMions,
Structure, etc. imuiBCT Bsmu ^wimwiP wnwu sae^t^raa Stntcture. ete
/Q Y/? -T"^ ^v/i. y/p
^Vt^ric Soil hdicators:
Hstosol
Hstic Efwpedon
SulMicOdor
Aquic Mois&ire Regime
Redudng Conditions
X Gleyed or Low^Chroma Colors
Concr^ms
— ^OrgarricConimtlnSurteceUyer in Sandy Sods
Ofgonic StreBkir>g in Ssndy Softs
UstMJ on Local Hydric Soits List
— Listed on NnkmaiHyddo Soils Ust
— Other (EjpWnirtRemaiiis)
Remartcs:
WETLAND DETERMINATION
fc«G./^-e_ o'i(^o««-/ '-tccA'c^ «»/ -Rcr^-o La^'^J^'T&.yti\Cc»^CA.^<^
IW
•iH
mm
mm
MP
«i»
Approved tjy HOUSACE 3/92
HI
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manuel)
Project/Site: £1 CcL^t^^ R-Pb./ R^r^^f U).J_Q^W
Applicant/Owner
Investigalor lb. F/rr-hif"^, r A ^
Date
County
State: CA
Do Nonnal Circumstances exist on the site? ^SS) ^
Is the site significantly disturbed (Atypical Situation)?
Is the area a potential Problem Area? Yes
(If needed, explain on reverse.)
Community ID: ScOS
Transect ID:
Rot ID:
VEGETATION
pnfrinenl Ptant Soedes Stratum hdlcaior nrninanl Planl Soedes Stratum hdtcaior
, <^.J>y Ic^x/rjUp/j^ T FA<1*) n
in
fl 11
A 1?
n 14
7 !«;
fl !#;
Ptrcertf or Doninanl Species that are OBL, FAC;W or FAC
feachidirw FAC->.
Remsrhs:
HYDROLOGY
necofded Oasa (DescittM in Remarks):
Susem, Lata, or Tide Gmge
A«W Photographs
Otfier
_XND Recorded Data Aiailable
Field OtaeervtfianB:
Depth ot Surface Waien
Depth to Five Water in Pit:
Deph to SAirated Soil:
? /V" en.)
A£i^f..)
weitond r^dntogy hdcaiors:
Primary hcScaiois:
hundated
Seiurrted h Upper 12 hches
W«er Marts
Drift Unea
SetSment Depoelts
Di*ne9eP«lemeinWeitar»ds
Secondaiy Mtoaiors <2orrnore reqixFed):
Qjddzad Root Channels h Upper 12 hches
WMBT-Sainod Leaves
Local Sol Sunioy Drta
FAC-MeutrilTest
Other (Ej^tahh Remarks)
SOILS
(Series and Ptiase): J!^ //^c^ C.l£tt^ iOO
Tannomy (Subgroup): _>aS<.f CLt..
Drainafle Ctess: ^^fi^-*^ t^-
FieW Obsefwahons ^
Confirm MappedTw>e?( Ves/ Mo
Profite Oeacreaiaa
D^tn Matrix Colof
(MunseB Moistt
MotHe Colors
(Munsea Mffiai)
Mottle AlMndance; Tenure, Concrelior>s.
StniCfafC. glC
C7A^ /
Hydric Soil Indicators:
Hstosol
Hstic Epipedon
SuAdicOdor
Aquic Moisture Regime
Redudnp CondiiiOTS
I]x Gleyed or LowO»ron» Colors
Concretions
Hgti OrgarucConiem in Surtace Layer in Sandy Soils
Organic Slreakirkg h Sandy Soils
Listed on Local Hydrk: Soils Ust
Listed on rtotfonal H/aric Sons List
Other <E:t^ah in Remarks)
Ftemarfcsi/fcjJY.'C- So//S AVL* V&-S<^(t ^kL -P/ta^
•it
llkr
WETLAND DETERMINATION
hydrophylk: Vegetation Preeeni?
WoSand Hydrotogy Prasenf?
I^ric Soils Prasenr?
(Circle) (Ciicle)
Is this Sampling Point Within a Wetland? Ves^^)
Remarks:
III*
mm
mm
mm
•w
mm
mm
mm.
mm
Approved by HQUSACE 3^92
aiw
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manuel)
Project/Site: £1 Cg^^t^^ go^^^
Appficant/Owner C
Investigator 7^. FA
Dale; _
Courty:
Stale: CA 1
Do Normal Circumstances exist on the site?
Is the site signrficantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
<lf needed, explain on reverse.)
ComminHy ID:
Transect ID:
Plot ID:
VEGETATION
DfifTipnant Plant Soecies Siratum htiicaftK Dorrfnanl Planl Soecies Stratum Indkator
9
a 11
4
la.
7 15.
fl Ifi
Percent ot Dominant Species that are OBU FACW or FAC
(enkidiK) FAC-).
< ^0% d-f- cnv-e^.
m HYDROLOGY
RocorHad DatafOeecrfbe in Remarks):
Streem, Lata, crTide Gajge
Aortal Ptmographs
Other
_X^h Recoided Dtfa AhOilaMe
Fidd Oteervaiions:
Depth or Surtace Water
Depff) 10 Free Water in Rl:
Depffi to Saturated Sofl:
AJ/A fn)
.f«.)
Wetland H^drcMigy hdicaflors:
Primary hdkstois:
kuidated
SBfcWMd in Utsper 12 hches
Water Ibferks
Drift Unes
Sedbnani DcpoBlts
DiatavePtftemainWellands
Secondeiy MKaftM (2 or more required):
OjiHied Root Chonnete in Upper 12 hches
WMer-SttnedLMwcs
Locil Sol 5un«y Data
^^C•Hm^nnta^
OOm \!£jpain in Remarks)
'^'uj'fU. S^cc//cr«<J SO-^-OCL^ cTjci-vn/KiC . /_b hu4^6loa\^ aj-
S<^^U fit-
SOILS
iSenes and Phase). -,Sn li o/ctU /oQ ^ -3 - ^
TaxMiomy (Subgroup}):
DrainoBe Class; />ig>^ ma T^.
Fiekt C%servaiK>ns
Confimi Mapped Type? Yes No
Profile Deacriotion:
Depm liDEbfisL tSaasia-
O-T-
ItetrixCoku t«}nieCbk>rs
[Munaeg Moi-M)
Mottle Abundance/
Hydrk: Soil hcficalors:
Hstosol
Hstic Epipedon
SullSdicOdor
Aquic kfcistufc Regime
Reducing Conditions
Gleyed or towMUiromB Cotors
Tejdure. Concrelwns,
fflrmaufg. etc,
/o
Concretions
Hgh Organic Content in Surtace Layer in Sandy Soits
Organic Slrcalur>g h Smly SoHs
. Usted on Local Hydric Soils List
Listed on NOtkmal Hydric SoHs List
Oiitr <E3ptain in Remarks) •m
••I
I* ••
WETLAND DETERMINATION
Hydfcphytic Vegetaticn Present?
Wettand Hydrdogy Presem?
Hydric Sote Present?
•ih
Remarks:
Approved by HOUSACE 3/S2
air
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Applicant/Owner
Investigator 7>.
Do Normal Circumstarx^es exist on the site?
Is the site signrficantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
Community ID: ^S^-uS
Transect ID: ____
Plot ID:
VEGETATION
m
m
1 DoiTMiant Plant Soedes Stratum hdicator Doninant Plant Soecies Strakim hificaior
1 i .s>>;>L /<Li;o(«.p/s -r F-A<^
10
la. Hf^^fLt^ 'y^Kycj9 f4 A'/ 11.
1?
1 ^ ia
1 ^ 14.
in.
1 IG.
Percent or Dominant Species tiat are OBL, FACWorF/^
(eckidinq FAC->. ^
Remarks: C:ir\C\^ l rv,^^t^c-^di plc^-i ofcsei^-''^*-^
HYDROLOGY
1 Recorded Data pescribs In Remarks):
1 Strvam.Ltfte^orTidaGiaigs
1 Aerial PtxJtographs
1 other
1 J^ND Recorded Data Afalabia
Wetland l^ratogy hdk:ators:
Primary hcScaloiS:
InutxJaled
Satwaied in Upper 12 hches
Water Marks
^ Drift LJnes
Sedhiert fteposits
Diahage Patterns in Wetlands
Secondaiy htficators (2 or more required):
Oxidzed Root Channets in l^aper 12 hches
Wtfer-Stahed Uaves
Local Soi Survey Data
FAC-NeuHtfTest
Other [Explain in Remarks)
Ttekl Observalkxis:
Deolh of Surtace Water ^/ A fin.l
Daolhto Free Water in Pit: > / Y " fin i
Deolh to Saturated Soil: ^ /V fin.)
Wetland l^ratogy hdk:ators:
Primary hcScaloiS:
InutxJaled
Satwaied in Upper 12 hches
Water Marks
^ Drift LJnes
Sedhiert fteposits
Diahage Patterns in Wetlands
Secondaiy htficators (2 or more required):
Oxidzed Root Channets in l^aper 12 hches
Wtfer-Stahed Uaves
Local Soi Survey Data
FAC-NeuHtfTest
Other [Explain in Remarks)
Remarks: ^^pU po.^ '5 -^i* s4^^p S/apo. .
SOILS
Il
(Series and Ptiase): Va-CtU/g-fp^ f^'no ga^g/i^ ic^^c. .•?0^_g)vi. Drainage Class: -rrxoJjSrx^r^
i -JJL ' IL I -Jif FieldOtJservations ^
Taxmomy (Sul>yw^): ^"'^'O / tiy/ny evfl I f Confinn Mapped Type? Yes QtoJ
Proffe DejjCfiptkm:
Depth
IklCtlfiSL JdOIUQIL
Matrix Color
(Munsefl
a.sry 57^
Motile Colors
fMunseH Moisll
Mottle Abundance/
Riw/Contfast
Teitfure, Concretions,
StructLt;e. ^XK^^
Hydric Soa hxficaiors:
Hstosol
Hsiic Epipedon
SulidicOdor
Aquic Itoisture Regime
Redudng CorwJtlkJns
Gleyed or Low-Chrorra Cotors
Corxa^etions
Hgti Organic Content in Surtace Layer in Sandy Soils
Organk: Streaking h Sandy Soils
Listed on Local ^ric SoHs List
Listed on NaSonat Hydrk; Snis Lsi
Ottier (Bqplain in Remarks)
Remarks: 50/Is
WETLAND DETERMINATION
^———
Hydrophytic Vegetation Present? Yes (% ^<Cticle) (Circle) Wedand »^drak>gy Present? Yes Q (Circle)
Hydric Soils Present? Yes ^ Is this Sampling Point Within a Wetland? Yes
Remarks:
•B
mm
IP •»
mm
mm
mt
Approved by HOUSACE ^ mw
mt
mw
DATA FORM
ROlfTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: £1 CQ.^.-^^ /^or.^/ CJ.Jo^w
Applicant/Owner C'^v o-f Ccfe^^ J
Investigator 1^. FA e -tn k. ^tAn'
Date:
County:
State: CA
nty: Jbai? P i
Do Normal Circumstances exist on the site? (^K) No
Is the site signif'icanlty disturbed (Atypical Stuatlon)? res
Is the area a potenlial Problem Area? Yes (w
(If needed, explain on reverse.)
Community ID: ^ht^nel^
Transect ID:
Plot ID: ( ^
•I
m VEGETATION m
n Oomffienl Plant Soecies Stratum hdicator OonWianl Plant Soedes Stratum hdkalor
•at 1 ^ a
m in m y 3. 11
1?
•a 1 >>. ia
•ft u.
1 f Ifi
—
1 Percent or Domham species fiat are OBL, FACW or FAC
1 (eicfudfnq FAC-). O \
•1 1 Remarics: CAt^nn-^C ''S t-^-A O-ej-e-fe-tlci?^
HYDROLOGY
h
Recorded Data (DescrSie in Remartcs):
Streanrt. Lake, or Tide Gauge
Aerial PlKtogiaphs
Other
XND Recorded Data Available
Hekl Observations:
Depth of Surface Walen
Deptti to Free Water in Pit:
Depth ID Saturated Soil:
> li" On.)
-<in.)
Wetland Hydrdogy hdk:ators:
Primary hdicators:
hurxlatBd
Saturated in Upper 12 hches
Water hbrks
;>£:DitR Lines
Secfimenl Deposits
Ditfnage Pflfleme in Wetlands
Secondaiy htScators (2 or more required):
_V£>3(kfizedRo(M Channels in Upper 12 hches
Water-Stained Leaves
Local Soil Survey Data
FM>NeutralTest
Ottier (Ej?)tein in Remaria)
Remarte: So-rr^pUs^ ^c/^-f t'<, hafo^ O (fiOA^ ^ cM<U) ne..C.
SOILS
Map Uhil »*me _ If* I \
(Series ar>d Phase): VyaO/ti-fgt f^„e Sct^ tjj^ it^yn^
Taxsnomy {Sut>group):,
Drainage Class: -yyt ooCfi
Field Observations
Confirm Mapped Type? Yes No
Proiae PpscT^ion:
Deptn
finrtie.^1
Maim Color
fMiinsgli Mnis1\
Monte Colors
fMunsei Mo^s^^
Mottle Abundance/
STP/Contfast
Teidure, Concretions,
Stmaiire. fttc,
5a^c4^ ^^^^ /oct.^
Hydrk: Soil hdkalors:
Hstosol
Hsiic Epipedon
SuflkfieOdor
Aquk; Moisture Regime
Reducing Concfltions
GJeyed or Low-Chroma Colors
CoTK^'etians
Hgh Organic Content in Surtace Layer in Sandy Soits
Organic Streaking h Sandy Soils
_ Listed on Local Hydric SoHs List
Listed on National Hydric Soits List
Other (E^riain in Remark^
Remarks:
/ft O^fffl*^ So-r^jpU. poT/V^-j ^l^^^ he^r<^c^ CspocU^
tj^JP aJ: oJccn^4r S^^^ •
WETLAND DETERMINATION
™==—'——•
Hydrophylk: Vegetation Present?
XffiL ^^Ciicle) (Circle)
Wsttand tVlra'ogy Present? fiteJNo
(Circle)
Hydric Soils Presertt? No IS this Sampling Point Within a Wetland? Yes
Remarks:
Approved by HOUSACE 3/92
Mt
•ff
HI
Nik'
Mt
in
IB
DATA FORM
ROirriNE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: (£l Cxxwlt^a fi.gcJ^ ^^^oc^<i
Appfcant/Owner _
Investigator "t^.
Do Normal Orcumstances exist on the site?
Is the site signtficantly disturbed (Atypical SitiBtion)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
Date: \/l3/0<o
County: Sc^^ btep^.
State: cA ^
Comminity ID: S UAS
Transect ID:
Rot ID:
VEGETATION
Ooirifianl Ptant Species
1. /^aZ/y M^/oia^rS
Stratum hdicaiof Oonfeant Plant Soedes Stratum Indicalor
10._
11-.
12._
13^
1*--
15..
16._
i Percent o( Domtont spedes that are OBL, FACW or FAC
i (ewkidinq FAC-). 3^% 1
1 Remarks: |
HYDROLOGY
Reconled Data (Descift>e In Remadts):
Straam, Lake. orTtde Gauge
Aerial Photographs
Other
No Recorded Data Available
Ftekl Observations:
Depth of Surface Water
Deptfi to Free Water h Pit:
Depth to Saturated Soil:
jy2l.0a)
fry)
Wetland Hydretogy rKScators:
Primary hdteaiofs:
hundaied
Satursted in Upper 12 hches
Waaerlitarks
OnBUnas
. SeAnent Deposits
Dteimge PMems in Wetlands
Serandary hdicators (2 or more required):
Oidiized Root Chanrwis in Upper 12 hches
Water-Stained leaves
Loc^ Sol Sunny Data
FAC-Neutral Test
Other (Ejiplah in Remaiits)
Remarks: Sc*-/*^p Ce. ocj,
SOILS
I {sJ'nes and Phase) Co^/lrS bft-j gYCtt^L loci.'fr^ U jr^j^agg Class: niqc£^ LjJfJ.^
jj ^ I - Tx r*-/ 7~ 3/ ^ Observations
Ta«nonv (Subgroup): Kop/.^^ DUmchreptT Confinm Iwlapped Type? Yes No
PtofBe Description.
Dt^lh
0-/0
/6-/Y
Matrix Cotor
/o y/g3//
Mottle Colors
IMunsell tAiistl
Mottle Abundance/
aTPJConlrasl Teitfure. Concretions.
HyCnc SoU h<Scators:
Hstosol
Hstc Epipedon
Sulfidic Odor
Aquic Moisture Regime
Reducmg Conditions
X Gleyed or LoiwChroma Colors
Concretions
Hgti Organic Content in Surface Layer in Sandy Soils
Organic Streakhg h Sandy SoHs
Listed on Local Hydric SoBs List
Listed on National Hydrk; Sofls Ust
Other (Eiqalain h Remarks)
Remarks; /^J-^/C ^/IS -^etcj jtaC r*r) O-n ^ «^ J>~t\'fc^t
WETLAND DETERMINATION
Hydrophytic Vegetation Present?
WeOvxJ Hydrok>gy Presenf?
H^dhc Soils Present?
(Orde)
b this SampGng Point Within a Wettand? Yes ^)
Remaiks;
Appfcved by HQUSACE 3/92
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Mantel)
Project/Site: t:t CcLvn.'rxc> R-gcJ. V^oc^gL
Appficant/Owner O'I^A of Ca<lsUsc^<i
i37 Investigator "b^. F\>-4.j->^.p.^"
Date: 1/ I3/0 <€>
County: St^^ b;e<^.o
State: cA ^
Do Normal Circumstances exist on the site?
Is the site significantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
Comminity ID: OC
Transect ID:
Plot ID:
VEGETATION
Domlnsnt Ptant Species Stratum hdicator DominBnl Ptant Soecies Stratum hdkaior
1 a
3 10
3 11
4. 12.
S 13.
a 14.
7. 15.
ft 16.
Percent of Dominanl Species that are OBL, FACW or FAC
(exctudhQ FAC-).
Remarks: /UO ^//'^ '^hi.nn^C
HYDROLOGY
m
1 Recorded Oatm (DescritM h Remarks):
1 Stream, Lake, or rids Gauge
n Aenal Pttotogiaphs
Other
' f*> flocofded Oaia Avaitebie
Wetfand Hydrokioy Indicators:
Primary hdtealors:
hundated
Saturated in Upper 12 hches
Water hbrks
Field Observalkxis:
Depth ot Surface Water
1 Dapt) to Free Water in Pit: >^^*
en.)
Secfimenl Deposits
X Dnmege Panems in Wetlands
Secondary hdicakMS (2 or more required):
Oxidized Root Charmels h Upper 12 hches
WBler-Stained Loaves
Local Sol Suney Data
1 Depth to Saturated Soil: fm.)
FAC-MeutralTest
Other (Ej^lah in Remarks) fm.)
j Remarks: ^^^^Cc po'.^^
SOILS
h ^^^^^
(Series ar>dP^se) Cg/U hc^j gYQL^L \ijc,y^u i^'^h^
,^ , LL ~y V TVT ^J- ^ Fieldt»)servaiions Ta«nomy (Subgroup): tHipltC^ DUrGChfep-C C«>r.mi l^ped Type? ^Js) No
iafeege Class, rrwc^- Uje.lL
Proflle DescripOon:
D^
O-/V
Matrix Cokw
fMunseU Mnisrt
MoltJe Cotors Mottle Abundance/ Tenure. Concretions.
HydfK SoH hdicators:
Hsiosol
Hstic Epipedon
SulMicOdor
Aquic Maislure Regime
Reducing Contftions
Gleyed or Low^Chroma Colors
Concretons
Hgh Organic Content in Surtace Layer in Sandy Soils
.i^rOrganic Streakhg h Sandy So«s
Listed on Local H/dric Serifs List
Listed on National Hydric Soils List
Other (Ej?>lain h Remarks)
Remarks:
WETLAND DETERMINATION
Hydrophyfc Vegetatkm PreserA?
Wedand Hydrology Present?
Hydrk: SoOs Present?
Yes <gr)(Cirele)
?M) No
No te this Sampling Point Wilhin a Wettand?
(Cirde)
Romarics: {^^-(^ U-S .
Approved by HQUSACE
APPENDIX D
Species Sensitivity Categories
m
APPENDIX D
Species Sensitivity Categories
m
FEDERAL
Endangered
Threatened
Candidate
Federal Species of Concern
m
M
Taxa threatened throughout all or a significant portion of their range.
Taxa likely to become endangered in the foreseeable fiiture.
Taxa for which the USFWS currently has on file substantial
information on biological vulnerability and threat(s) to support
the appropriateness of proposing to list them as endangered or
threatened species.
Taxa that were formerly Category 2 Candidates for listing as
threatened or endangered. This category is an "unofficial"
designation for species that may warrant listing, but for which
substantial information to support the listing is lacking.
STATE OF CALIFORNIA
Endangered
Threatened
Rare
Candidate
California or CDFG
Species of Special Concern
Taxa which are in serious danger of becoming extinct throughout
all, or a significant portion, of their range due to one or more
causes including loss of habitat, change in habitat, over
exploitation, predafion, competition, or disease (Section 2062 of
the Fish and Game Code).
Taxa which, although not presently threatened with extinction,
are likely to become endangered species in the foreseeable future
(Section 2067 of the Fish and Game Code).
Taxa which, although not presently threatened with extinction,
are present in such small numbers throughout their range that
they may become endangered if the present environment worsens
(Section 1901 of the Fish and Game Code).
Taxa which the Fish and Game Commission has formally
noticed as being under review by the Department in addition to
the list of threatened and endangered species.
Taxa that appear to be vulnerable to extinction because of
declining populations, limited ranges, and/or continuing threats.
DUDEK D-1
4926-01
September 2007
Ifi
Ml
Mt
m
•mt
m
m
APPENDIX D
Species Sensitivity Categories
CALIFORNIA NATIVE PLANT SOCIETY (2006) LISTS
lA: Presumed Extinct in California
IB: Rare or Endangered in Califomia and Elsewhere
2
3
4
Rare or Endangered in Califomia, More Common Elsewhere
Need More Information
Plants of Limited Distribution
Note: Plants on CNPS List IB meet Califomia Department of Fish and Game Criteria for Rare
or Endangered listing.
Threat Code Extensions:
.1 - Seriously endangered in Califomia (over 80% of occurrences threatened / high degree and
• immediacy of threat)
^ .2 - Fairiy endangered in Califomia (20-80% occurrences threatened)
.3 - Not very endangered in Califomia (<20% of occurrences threatened or no current threats
known)
4926-01
DUDEK D-2 September 2007
m
APPENDIX B
Acoustical Assessment Report
(Dudek, September 2007)
m
m
m
EL CAMINO REAL WIDENING
(Tamarack Avenue to Chestnut Avenue)
ACOUSTICAL ASSESSMENT REPORT
Prepared for:
CITY OF CARLSBAD
1635 Faraday Avenue
Carlsbad, CA 92083
Prepared by:
DUDEK
605 Third Street
Encinitas, California 92024
Contact' Mike Komula
(760) 479-4255
September 2007
El Camino Real Widening
Acoustical Assessment Report
TABLE OF CONTENTS
Section Page No.
EXECUTIVE SUMMARY iii
1.0 INTRODUCTION 1
2.0 PROJECT DESCRIPTION 1
2.1 Project Location and Setting 1
3.0 FUNDAMENTALS OF TRAFFIC NOISE 5
4.0 NOISE CRITERIA 8
5.0 METHODOLOGY 9
6.0 EXISTING CONDITIONS 10
6.1 Ambient Noise Measurements 11
6.2 Noise Modeling 12
6.3 Existing Noise Levels at Representative Receivers 13
7.0 FUTURE CONDITIONS 14
7.1 Short-Term Noise Impacts 14
7.2 Year 2030 Noise Impacts 15
8.0 CONSTRUCTION NOISE 15
9.0 MITIGATION 16
10.0 REFERENCES 18
APPENDICES
Appendix A Acoustical Definitions
Appendix B SOUND32 Input/Output
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El Camino Real Widening
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TABLE of CONTENTS (Continued)
Page No.
LIST OF FIGURES
Figure 1 Regional Map 6
Figure 2 Vicinity Map 7
Figure 3 Noise Measurements and Receiver Locations 12
Figure 4 Construction Equipment Noise Levels 17
LIST OF TABLES
Table 1 Existing Measured Hourly Average Noise Levels (Site Ml
Approximately 120 feet Centerline of El Camino Real) 10
Table 2 Measured Average Noise Level and Concurrent Traffic Volumes 11
Table 3 Existing CNEL at Representative Receiver Locations 13
Table 4 Existing and Future CNEL at Representative Locations 14
4926-04
DUDEK " September 2007
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EXECUTIVE SUMMARY
This acoustical assessment report evaluates the existing and future traffic noise level associated
with the El Camino Real Widening project. In general, the project proposes to widen El Camino
Real from a four-lane to a six-lane road from Tamarack Avenue to Chestnut Avenue. Existing
land uses adjacent to El Camino Real include single family and multi-family residences, and
open space.
The existing noise level generally ranges from approximately 67 to 71 dBA CNEL at the
residences adjacent to El Camino Real. The proposed road widening improvements would
increase the short-term traffic noise levels by less than one dBA, and the year 2030 traffic noise
levels by less than one dBA compared to without the project. The noise levels at the existing
residences would continue to exceed the City's 60 dBA CNEL noise guideline. However, the
noise impact associated with the project would be less than significant.
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DUDEK iii September 2007
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• 1.0 INTRODUCTION
1^ This noise study is provided for the proposed El Camino Real Widening project located within
the City of Carlsbad. In general, the project would widen the existing four-lane road to a six lane
*" road between Tamarack Avenue and Chestnut Avenue,
ii
^ This study documents the existing noise level based on noise measurements and modeling. The
^ future noise levels were calculated based on the proposed project's roadway design and traffic
volume conditions.
m
• 2.0 PROJECT DESCRIPTION
m
m 2.1 Project Location and Setting
2.1.1 Project Description
The City of Carlsbad (City) proposes to improve the section of El Camino Real from Tamarack
Avenue north to Chestnut Avenue. El Camino Real is a major north/south roadway serving as a
vital parallel circulation element to Interstate 5 (1-5) for the Cities of Encinitas, Carlsbad and
Oceanside. As various developments including subdivisions have occurred in the project
vicinity, developers have been required to widen El Camino Real to full prime arterial standards.
This section of roadway, from Tamarack Avenue to Chestnut Avenue, is one of the few
remaining secfions of the El Camino Real that has not been widened to its full width of six travel
lanes with three northbound and three southbound lanes.
The proposed roadway improvements would result in a total width of 126 feet including:
• 8-foot-wide bike lanes on both sides of the roadway
• three southbound lanes, 12 feet wide each
• three northbound lanes, 12 feet wide each
• an 18-foot-wide landscaped median island
• 5 1/2-foot-wide sidewalks on both sides of the roadway
• 4 K-foot-wide native planted area (including a native planted swale) on both sides of the
roadway
In the middle section of the roadway, the roadway would transition between the previously
discussed typical section to a modified width of 116 feet including:
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DUDEK 1 September 2007
El Camino Real Widening
Acoustical Assessment Report
a 6 !/2-foot-wide bike lane on the west side of the roadway
a 5-foot-wide bike lane on the east side
three southbound lanes, 12 feet wide each
a 14-foot-wide landscaped median island
three northbound lanes, 11 Vi feet wide each
5 '/2-foot-wide sidewalks on both sides of the roadway
4 1/2-foot-wide nafive planted area (including a native planted swale) on both sides of the
roadway
m
• The project proposes to keep the existing vertical profile of the road, and construction is
anticipated to extend approximately nine months.
m
Additional characteristics of the proposed project are described below.
Intersection Improvements. A traffic study was prepared for the subject project in April 2006
(LLG 2006). The purpose of the report was to analyze the operations at the two intersections
along this segment of El Camino Real, for the existing conditions and Year 2030 conditions. The
report then identified intersecfion improvements required to achieve acceptable level of service
(i.e., LOS D). These intersection improvements were consequently incorporated into the project
design.
The 2030 traffic forecast analysis shows that in 2030, the El Camino Real/Tamarack Avenue
intersection would result in an LOS F during AM and PM peak hours (LLG 2006). As such, the
project plans include an additional northbound and southbound thru lane on El Camino Real, and
an additional northbound lef^-tum lane on El Camino Real at its intersection with Tamarack
Avenue. This improvement would improve the LOS at this intersecfion to LOS D or better in the
AM peak hour and LOS C in the PM peak hour. Accommodating the additional northbound and
southbound lanes, just north of the intersecfion, would consist primarily of re-striping the
existing roadway, as sufficient width exists within the current roadway geometry. Associated
signal modifications to accommodate the new lane configuration would also be provided.
At the El Camino Real/Chestnut Avenue intersection, the project would resuh in the removal of
the existing free right turn islands located at the northwest and southwest comers of the
intersection and replace these with standard curb returns, pedestrian ramps, and associated signal
modifications to accommodate the road widening improvements. These intersection
improvements must satisfy Americans with Disabilities Act (ADA) requirements, and therefore,
4926-04
DUDEK 2 September 2007
El Camino Real Widening
Acoustical Assessment Report
m
m
m
Storm Drains. Currently, the roadway in the Area of Potential Effects (APE) exhibits erosion on
the embankment on the east side, pavement cracking and weathering, and bumps/sags. Storm
water from the storm drains currently outlets at erosive velocities into a ditch east of the
roadway. Storm drains within the APE would be replaced and/or improved.. The project includes
the placement of erosion protection in the ditch and/or construction of check dams within the
ditch to remedy the issue. The pavement for the roadway would be overiaid with asphalt concrete
and/or replaced with a full structural section as necessary.
Brow ditches are proposed along the west side of El Camino Real to prevent hillside stormwater
from flowing over the sidewalk and onto El Camino Real. The proposed locations are at Stations
513+50 and 536+00. The sizes of the brow ditches would vary from approximately 12-inch
minimum depth to 24-inch maximum depth.
Lighting. Overhead lighting is proposed as part of the project. Lighting would be installed per
applicable City standards for wattage and spacing. Each light pole would produce up to 22,000
lumens and would be staggered at 300-foot intervals along both sides of the project section of EI
Camino Real.
Bus Stops. One existing North County Transit District (NCTD) bus stop located on the west side
of El Camino Real just south of Chestnut Avenue would be relocated as part of the project,
although the specific location is in the process of being determined in concert with North County
Transit District. It is assumed that the chosen location would not be located outside of the
project APE. A second bus stop exists along the east side of El Camino Real north of Tamarack
Avenue. No improvements or alterations to this bus stop are proposed.
Utilities. Depending on the availability of funding, the existing overhead power lines along the
west and east sides of El Camino Real may be undergrounded as part of the project. Should
funding be available at the time of construction, possibly as a joint cost sharing effort with
SDGt&E, the City would underground these electrical utilities. If a funding source for
undergrounding is not located, the existing power poles along the west side, north of APN 207-
090-20, Station 526+00, are proposed to be relocated 5 to 10 feet to the west. The relocation or
undergrounding of these poles is necessary to accommodate the proposed street widening.
Grading. Minor grading would occur along the west side of El Camino Real to accommodate
construction of proposed retaining walls, which are described below. Additional grading behind
and at the top of the retaining walls would occur to construct brow ditches and drainage
facilities. The proposed grading at the top of the walls would be contoured to a 1.5:1 or 2:1
4926-04
DUDEK 3 September 2007
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Acoustical Assessment Report
*• inclination to blend into the natural look of the existing terrain. The proposed grading would
^ range from 5 to 8 feet in height above the top of wall.
m
Both minor grading and major grading would occur on the east side of the project. Minor re-
grading is required at two locations (at approximately Station 512+50 and Station 517+00) to
M> stabilize the existing fill slope adjacent to the east edge of the roadway, which also represents the
^ west edge of the existing drainage channel. These two locations are situated approximately in
the middle third of the APE and represent distressed areas where slope failure (Station 512+50)
and sloughing (Station 517+00) have occurred. The existing slope height at these areas varies
m from 5 feet or less to approximately 15 feet with the height generally increasing toward the
il north. Both of these areas would be over-excavated and reconstructed with reinforced earth or
equal methods in accordance with the geotechnical report for the project to stabiHze the slope
and re-establish the initial slope inclination. m
m
Major grading is proposed along the northern segment of the east side of EI Camino Real,
predominantiy across Assessor Parcel Numbers 167-230-24 and 167-230-25. Slope heights
would range from 30 to 50 feet with the height increasing toward the south. The proposed
grading will be contoured to a 1.5:1 or variable slope inclination and be graded in such a fashion
as to replace the in-kind driveway access to the property.
Retaining Walls. Retaining walls are proposed on the west side of El Camino Real in the
approximate midpoint of the APE. A portion of the proposed retaining walls would be located
outside of the project ROW, therefore, property acquisition of 6,946 square feet (0.16 acre)
would be required on Czajkowski property (within parcel numbers 207-180-08, -09, -10, and -
12), which is located approximately 2,000 feet south of the EI Camino Real/Chestnut Avenue
intersection. The height of the retaining walls would vary from 6 feet to a maximum of 15 feet
high. The specific wall types would be Caltrans cast-in-place concrete or masonry block
cantilever with fascia for walls less than 10 feet in height. These have a concrete spread footing
and a vertical retaining face.
For walls over 10 feet in height, a tieback wall type would be implemented. This type of
retaining wall is an anchored wall system that relies on steel bars grouted into the retained slope
and a reinforced facing. The anchors are prestressed to provide an active clamping force. The
facing is typically constructed with reinforced shotcrete or cast-in-place concrete, and are
constructed with a "top-down" approach that does not require substantial excavation behind the
wall face.
4926-04
DUDEK 4 September 2007
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El Camino Real Widening
Acoustical Assessment Report
The retaining walls are proposed to be built with a boulderscape architectural treatment and
^ landscaping screening. Drainage systems would be included behind the walls to allow proper
^ drainage of the adjacent hillside.
* Landscape Concept Plan. A Landscape Concept Plan has been prepared as part of the project to
* provide a transition between the ornamental landscape and natural landscape on either sides of
the project reach of El Camino Real. The Landscape Concept Plan takes into account the City's
EI Camino Real Corridor Development Standards by incorporating a median landscape treatment
that continues adjacent median designs. The specific objectives of the design include low water
use, minimization of fire hazards, minimization of visual impacts of the proposed retaining walls,
ii and stabilization of disturbed slopes.
* Staging Areas. Staging areas for temporarily storing construction equipment would be identified
during final design of the project, and would be located within previously paved areas within the
m APE.
The regional location and project vicinity are shown in Figures 1 and 2.
Land uses adjacent to the project site include single family residences, multi-family residences
and open space.
3.0 FUNDAMENTALS OF TRAFFIC NOISE
Noise is defined as unwanted or undesired sound. Sound levels can be measured easily, but, the
variability in subjective and physical response to sound complicates the identification of noise
impacts. The basic terminology and concepts of noise are described below. Technical terms are
defined in Appendix A of this report.
Sound (noise) levels are measured in decibels (dB). Community sound levels are typically
measured in terms of the A-weighted sound level. The A-weighted scale approximates the
frequency response of the average ear when listening to most ordinary everyday sounds. When
people make relative judgments of the loudness or annoyance of a sound, their judgments
correlate well with the A-weighted scale sound levels of those sounds. All sound levels
discussed in this report are A-weighted.
4926-04
DUDEK 5 September 2007
Orange
County
Project Site
La Jolla
San Diego
Q 0 4 8
El Camino Real Widening (Tamarack Avenue to Chestnut Avenue)
Acoustical Assessment Report
Regional Location
FIGURE
El Camino Real Widening (Tamarack Avenue to Chestnut Avenue)
Acoustical Assessment Report
Project Vicinity
FIGURE
El Camino Real Widening
m Acoustical Assessment Report
Additional units of measure have also been developed to evaluate the long-term characteristics of
sound. The equivalent sound level (Leq), also referred to as the time-average sound level is a
single-number representing the fluctuating sound level in dB over a specified period of time. It
is a sound energy average of the fluctuating level and is equal to a constant unchanging sound
level of that dB level.
A noise descriptor commonly used for environmental noise is the Community Noise Equivalent
Level (CNEL). CNEL is an average A-weighted sound level during a 24-hour period, after the
addition of five dB to the average sound levels occurring in the evening hours (7 p.m. to 10 p.m.)
and ten decibels to the average sound levels at night (10 p.m. to 7 a.m.). The five and ten decibel
penalties are applied to account for the increased noise sensitivity during the evening and
nighttime hours.
Sound propagation (i.e., the passage of sound from a noise source to a receiver) is influenced by
several factors. The manner in which the noise reduces with distance depends on several factors
including geometric spreading, ground absorption, atmospheric effects as well as shielding by
natural and manmade features.
Traffic noise along a road is typically considered a line source. Geometric spreading of a line
source is reduced at a rate of approximately three dB per doubling of distance {e.g., the noise
level will be approximately three dB less at 200 feet as compared to 100 feet a road). Additional
or excess ground attenuation can occur when the ground surface between the road and receiver is
composed of a soft surface such as grass, dirt, scattered bushes and trees. When added to the
geometric spreading, the sound level is attenuated by approximately 4.5 dB per doubling
distance. These attenuation rates are approximations. At greater distances from the roadway,
excess ground attenuation may be five to ten dB or more per doubling distance.
Atmospheric effects can also influence traffic noise. These effects include wind, temperature
gradients and humidity. In general, the greater distance the receiver is situated from the road, the
greater the potential for variation in noise levels due to the atmospheric effects. Additional noise
attenuation can result from manmade features such as buildings and walls, as well as natural
features such as hills and dense woods. These features can reduce the traffic noise by shielding
the receiver from the road.
4.0 NOISE CRITERIA
The City of Carlsbad has established noise guidelines in the Noise Element of the City's General
Plan. These guidelines identify compatible exterior noise levels for various land use types. The
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DUDEK 8 September 2007
El Camino Real Widening
Acoustical Assessment Report
maximum allowable noise exposure varies depending on the land use. New single family
residential, schools and churches are subject to a maximum acceptable exterior noise level of 60
dBA CNEL. In addition, interior noise levels for new residential development should not exceed
45 dBA CNEL.
The City of Carlsbad has not adopted specific road widening significance thresholds for existing
noise sensitive land uses. For the purposes of this study, the noise impact is significant if the
traffic noise level increase exceeds three dBA CNEL and either elevates noise levels above the
City's noise criteria limits or exceeds a three dBA increase above an already noisy existing
condition {i.e., 60 dBA CNEL for residential development). A noise level change of three dBA
is generally considered to be a just perceptible change in environmental noise. The comparison
of future without project conditions to future with project conditions is the basis for
determination of significance.
For prime arterials, the City's standard weekday construction hours are 8:30 a.m. to 3:30 p.m.
Since this segment of El Camino Real has substantial directional flow, the City may pursue an
extension of construction hours until 5:00 p.m. in the aftemoon, depending on the direction of El
Camino Real under construction. The extension of hours would require use of a traffic control
plan. Also, because the Tamarack Avenue and Chestnut Avenue intersections have school
pedestrians crossing El Camino Real, the contractor would not be allowed to initiate the traffic
control plan in either direction before 8:30 a.m. Furthermore, the City may elect to allow
construction on Saturdays, in an effort to reduce the overall duration of construction. This option
would also result in the need to implement the traffic control plan.
5.0 METHODOLOGY
Noise measurements and noise modeling were used to determine the noise level for the project's
Area of Potential Effects (APE). The noise model utilized is Caltrans SOUND32 traffic noise
model (Caltrans 1983) with Califomia noise emission factors (Caltrans 1987). The noise
measurement sites were selected to represent the worst case noise exposure in a given area of
^ noise sensitive receivers and to calibrate the noise model. The measurement sites had
unobstructed views to EI Camino Real, i.e., there was no shielding from intervening buildings,
IP fences, etc.
m
m
m
The noise measurements were made using a RION Model NL 32 (S.N 01030561) and a Larson-
Davis Laboratories Model 700 (S.N. 2132) integrating sound level meters equipped with H-inch
pre-polarized condenser microphones with pre-amplifiers. The sound level meters meet the current
American National Standards Institute standard for a Type I precision sound level meter. The
rx I I r% r- 1^ 4926-04
D U D C K 9 September 2007
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Acoustical Assessment Report
sound level meters were calibrated before and after the measurements, and the measurements were
conducted with the microphones positioned approximately five feet above the ground.
Traffic noise has been assessed based on the City's noise assessment methodology documented in
the City's Noise Guidelines Manual (City of Carlsbad, 1995). Input used for the SOUND32 noise
model included the existing and future volumes. Existing and future vehicle speeds were assumed
to be 55 mph. The truck mix used was 3.52 percent medium tmcks and 1.24 percent heavy trucks.
The traffic mix is based on vehicle mix surveys recommended by the City (City of Carlsbad 1995).
The traffic volumes and other input used in the noise modeling are depicted in Appendix B.
6.0 EXISTING CONDITIONS
mm
m
m
m
m.
m
Noise at the project site is primarily associated with El Camino Real. The existing traffic volume is
approximately 24,360 ADT along EI Camino Real adjacent to the project site (LLG 2006). Noise
measurements and noise modeling were used to detemiine the existing noise level in the area {Table J).
TABLE 1
Existing Measured Hourly Average Noise Levels
(Site Ml Approximately 120 feet Centerline of Ei Camino Real)
DAY : STARTTIME U, •
3/21/06 1:00 P.M. 68 dBA
2:00 P.M. 69 dBA
3:00 P.M. 69 dBA
4:00 P.M. 69 dBA
5:00 P.M. 69 dBA
6:00 P.M. 67 dBA
7:00 P.M. 65 dBA
8:00 P.M. 64 dBA
9:00 P.M. 62 dBA
10:00 P.M. 61 dBA
11:00 P.M. 58 dBA
4/26/05 12:00 Midnight 56 dBA
1:00 A.M. 56 dBA
2:00 A.M. 56 dBA
3:00 A.M. 57 dBA
4:00 A.M. 62 dBA
5:00 A.M. 65 dBA
6:00 A.M. 68 dBA 1
10
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TABLE 1
Existing Measured Hourly Average Noise Levels
(Site Ml Approximately 120 feet Centerline of El Camino Real)
m
m
m
m
m
DAY SIARTTME U
7:00 A.M. 68 dBA
8:00 A.M. 68 dBA
9:00 A.M. 67 dBA
10:00 A.M. 67 dBA
11:00 A.M. 68 dBA
12:00 Noon 68 dBA
CNEL 70 dBA
6,1 Ambient Noise Measurements
One long-term {i.e., 24-hour) noise measurement location and two short-term noise measurement
locations were selected along the site (Sites Ml through M3, Figure 3). These noise
measurement locations were chosen primarily to determine the noise level at these sites and to
calibrate the noise model {i.e., the sites were clear of major obstructions between the source and
receiver as well as reflecting building/wall surfaces).
Site Ml was located near the top of slope on the west side of El Camino Real. The noise
measurement site had an unobstructed view to El Camino Real. The noise measurement at Site
Ml was conducted for 24-hours beginning at 1:00 p.m. on March 21, 2006. The measured
hourly average noise levels ranged from 56 to 69 dBA and the CNEL was 70 dBA. The primary
noise source was traffic on El Camino Real.
Sites M2 and M3 were located on the east side of El Camino Real near the top of the slope
adjacent to the backyards of the homes. The measured average noise levels were 66 dBA at Site
2 and 65 dBA at Site 3. The results of the noise measurements and concurrent traffic counts are
depicted in Table 2.
TABLE 2
m
STTE ••• - mm$^^m CM irn
M2 285 feet to center line of El Camino Real 3/22/06
12.20 to 12:50 p.m. 66 495 6 4
M3 270 feet to the center line of El Camino Real 3/22/06
11:55 a.m. to 12:15 p.m. 65 535 11 4
Notes: i Ec^lvalent continuous A-weighled sound pressure level
2 Medium tmcks
3 Heavy tnjdts
11
4926-04
September 2007
LEGEND
. . . Noiso Measurement Location
. . . Receptor Location
. . AK Boundary
BEST ORIGINA.
ScaiamFeet
TOPO SOURCE: Barrynwi & Hsngar, Dec 200S
El Camino Real Widening (Tamarack Avenue to Chestnut Avenue)
Acoustical Assessment Report
Noise Measurement & Receiver Locations
FIGURE
El Camino Real Widening
Acoustical Assessment Report
6.2 Noise Modeling
m
m
The same traffic volumes and vehicle composition ratios counted along El Camino Real during
the noise measurement were used to calibrate the Caltrans' SOUND32 model and verify the input
used in the noise model. The modeled existing traffic speed was 55 mph along El Camino Real.
The noise model and noise measurement results are within one dBA at Sites M2 and M3. Also,
using the City's recommended truck mix previously described in Section 5.0, the model noise
level was within one dBA CNEL at Site I. The results of the noise modeling generally confirm
the input used in the noise model.
6.3 Existing Noise Levels at Representative Receivers
Existing noise sensitive land uses located adjacent to El Camino Real consist of single family
and multi-family residences. The existing CNEL noise levels were calculated for representative
receiver locations adjacent to the road.
The existing noise level ranges from approximately 67 to 72 dBA CNEL at the backyards of the
adjacent residences. These noise levels do not account for noise attenuation of any existing barriers
such as sound walls or wood fences. The existing modeled noise levels for various receiver
locations are depicted in Table 3. The receiver locations were previously depicted in Figure 3.
TABLE 3
Existing CNEL at Representative Receiver Locations
m
m
m
m
m
m
m
SITE CNEL (dBA)
M1 71
M2 67
M3 68
R4 70
R5 70
R6 69
R7 69
R8 68
R9 68
R9B 67
RIO 69
R11 68
R12 72
R13 72
R14 67
R15 67
R16 67
13
4926-04
September 2007
El Camino Real Widening
Acoustical Assessment Report
TABLE 3
Existing CNEL at Representative Receiver Locations
-CNEL (dBA)
R17 67
R18 68
R19 69
R20 69
Notes: All noise levels rounded to the nearest whole dBA
mm Assumes free field condition
7.0 FUTURE CONDITIONS
Future noise levels were evaluated for El Camino Real for the short-term and Year 2030
conditions. Future year 2030 traffic volumes are projected to be approximately 34,700 ADT
along El Camino Real (LLG 2006). Short-term is defined as the time period just after the road
improvements have been constructed.
7.1 Short-Term Noise Impacts
In the short-term, the traffic volumes are expected to be similar both with the project and without
the project. Therefore, the noise level difference would result from the roadway improvements.
The center line of the road would be located at approximately the same location as the existing
center line alignment. However, two additional lanes would be constructed.
Short-term noise levels with the project would range from approximately 67 to 72 dBA CNEL at
the backyards of the existing residences adjacent to El Camino Real. The short term with the
project CNEL would increase by less than one dBA at the adjacent residences as compared to the
short-term without the project noise level. The short-term noise impact is considered less than
significant. The CNEL at representafive locations within the APE are summarized in Table 4.
TABLE 4
Existing and Future CNEL at Representative Locations
m EXISTING EXISTING + HOSE LEVEL -YEARiouwnwxrr YEAR203fit NOISE LEVEL
•
srTE (dBA) PROJECT (dBA) INCREASE (dBA)i PROJECT fdB^ PROJECT (dBA) INCREASE (dBA)i
• Ml 71 71 <1 72 72 <1
M2 67 67 <1 69 69 <1
M3 68 68 <1 69 69 <1
m R4 70 70 <1 72 72 <1
R5 70 70 <1 72 72 <1
m R6 69 69 <1 71 71 <1
14
4926-04
September 2007
El Camino Real Widening
Acoustical Assessment Report
TABLE 4
Existing and Future CNEL at Representative Locations
SITE
EXISTING
IdBA)
69
EXISTING «
PROJECT (dBA)
NOISE LEVEL
INCREASE (dBA}i
YEAR 2030 WTTHOUr
PROJECT(dBA)
YEAR 2030 *
PROJECT (dBA)
NOISE LEVEL
INCREASE (dBA)>
R7
EXISTING
IdBA)
69 69 <1 71 71 <1
R8 68 68 <1 70 70 <1
R9 68 68 <1 69 69 <1
R9b 67 67 <1 69 69 <1
R10 69 69 <1 70 70 <1
R11 J 68 68 <1 70 70 <1
R12 72 72 <1 74 74 <1
R13 72 72 <1 73 73 <1
R14 67 67 <1 59 69 <1
R15 57 67 <1 59 69 <1
R16 67 67 <1 69 69 <1
R17 67 67 <1 68 68 <1
R18 68 68 <1 69 69 <^
R19 69 69 <1 71 71 <i
R20 69 69 <1 70 70 <i
Year 2030 with project minus Year 2030 withwjt project improvements.
All noise levels rounded to the nearest whole dBA
Assumes free fietd condition
7.2 Year 2030 Noise Impacts
The year 2030 with traffic volume is projected to range up to 34,700 ADT along El Camino Real
(LLG 2006). Year 2030 with traffic noise levels would range from approximately 68 to 74 dBA
CNEL at the backyards of the residences adjacent to El Camino Real. The year 2030 with the
project CNEL would increase by less than one dBA at the adjacent residences as compared to the
year 2030 without the project. The noise level at the residences would continue to exceed a
CNEL of 60 dBA. However, the increase associated with the project is considered less than
significant. Also, it should be noted that the traffic noise levels in the Year 2030 would be
approximately one to two dBA higher as compared to the existing noise levels. The noise level
increase would happen with or without the project. The CNEL at representative locations within
the APE are summarized in Table 4.
8.0 CONSTRUCTION NOISE
Noise generated by construction equipment on this project would occur with varying intensities
and durations during the different phases of construction: clear and grub, earthwork, base
preparation, paving and cleanup.
15
4926-04
September 2007
El Camino Real Widening
Acoustical Assessment Report
Equipment expected to be used would include graders, backhoes, pavers and other related
equipment. The noise levels generated by construction equipment would vary greatly depending
on factors such as the type and specific model of the equipment, the operation being performed
and the condition of the equipment. Maximum noise levels at 15.2 meters (50 feet) would range
from approximately 75 to 95 dBA for the type of equipment normally used for this type of
project. The maximum noise level ranges for various pieces of construction equipment at a
distance of 50 feet are depicted in Figure 4.
When the construction equipment is operating, the existing residences could be disturbed by the
activities. Construction activities at the site will be required to comply with the permitted hours
of operation, and as described in Section 4.0, may require use of a traffic control plan. Overall,
the construction noise impact would be less than significant.
9.0 MITIGATION
Based on a review of the traffic volume information and improvement plans, the proposed
project would result in a less than significant noise impact. Therefore, noise mitigation measures
have not been evaluated.
4926-04
DUDEK 16 September 2007
NOISE LEVEL (dBAl AT 50 FEET i
COMPACTERS (ROLLERS)
FRONT LOADERS
BACKHOES
TRACTORS
SCRAPERS, GRADERS
PAVERS
TRUCKS
CONCRETE MIXERS
CONCRETE PUMPS
CRANES (MOVABLE)
CRANES (DERRICK)
PUMPS
GENERATORS
COMPRESSORS
-O
PNEUMATIC WRENCHES
JACK HAMMERS AND ROCK DRILLS
PILE DRIVERS (PEAKS)
VIBRATORS
SAWS
NOTE: Based on limited available data samples.
SOURCE: EPA PB 206717, Environmental Protection Agency, Dec. 31,1971, "Noise from Construction Equipment & Operations"
E! Camino Real Widening (Tamarack Avenue to Chestnut Avenue)
Acoustical Assessment Report
Typical Construction Equipment Noise Generation Levels
FIGURE
El Camino Real Widening
Acoustical Assessment Report
10.0 REFERENCES
California Department of Transportation (Caltrans), June 1983. User's Instructions for
SOUND32 (FHWA/CA-83/06).
Califomia Department of Transportation (Caltrans), 1987. California Vehicle Noise Emission
Levels, (FHWA/CA/TL~87/03).
City of Carlsbad, September 1995. City of Carlsbad Noise Guidelines Manual.
Linscott, Law, Grennspan (LLG), March 22, 2006. Traffic Analysis Report El Camino Real
Widening.
r-i> i I r-.. 1^ 4926-04
O U O E K 18 September 2007
APPENDIX A
Definitions
1
1
APPENDIX A
Definitions
Term Definition
Ambient Noise Level The composite of noise from all sources near and far. The
normal or existing level of environmental noise at a given
location.
A-Weighted Sound Level, dBA The sound pressure level in decibels as measured on a
sound level meter using the A-weighted fdter network. The
A-weighting filter de-emphasizes the very low and very
high frequency components of the sound in a manner
similar to the frequency response of the human ear and
correlates well with subjective reactions to noise.
Background Noise The total of all noise in a system or situation, independent
of the presence of the noise source of interest (i.e., without
the noise of interest).
Community Noise Equivalent Level,
CNEL
CNEL is the average equivalent A-weighted sound level
during a 24-hour day. CNEL accounts for the increased
noise sensitivity during the nighttime (10 PM to 7 AM) and
evening (7 PM to 10 PM) by adding ten dB to the sound
levels at night and five dB to the sound levels during the
evening.
Decibel, dB A unit for measuring sound pressure level and is equal to
10 times the logarithm to the base 10 of the ratio of the
measured sound pressure squared to a reference pressure,
which is 20 micropascals.
Maximum A-weighted Sound Level, Lr The greatest sound level measured on a sound level meter
during a designated time interval or event.
Equivalent Continuous Sound Level, Leq The sound level corresponding to a steady state sound level
containing the same total energy as a time varying signal
over a given sample period. Leq is designed to average all
of the loud and quiet sound levels occurring over a time
period.
DUDEK A-1
4926-04
September 2007
APPENDIX B
Sound 32 Input/Output
m
m
m
El Camino Real Widening -- Existing (ECR.EX)
T~S1 Camino Real, 1
1160 , 55 , 43 , 55 , 15 , 55
T-El Camino Real, 2
1160 , 55 , 43 , 55 , 15 , 55
T-El Camino Real, 3
1160 , 55 , 43 , 55 , 15 , 55
T-El Camino Real, 4
1160 , 55 , 43 , 55 , 15 , 55
X.-l\[orthbound, 1
N,6236714.7,2001188,72,
N,6236516.21,2001323,80,
N,6236408.5,2001386,84,
N, 6235995,55,2001624,100,
N,623 5791.68,2 001758,110,
N, 623 5595.36,2 001921,120,
n,6235415.44,2002108,130,
N, 6235260.7.2002311,140,
N, 623 5129.99,2 002528,150.
N,6235025.65,2002746,160,
N, 6234 942.43,2002924, 170,
6234858.66,2003104,180,
N, 6234772.91,2 003288,190,
L - Northbound, 2
6234 772.91,2003268,190,
H,6234690.34,2003465,200,
N,6234616.2,2003 64 8,210,
N,6234559.43,2003843,22 0,
IT, 6234522.75,200402 5,23 0,
N,6234488.48,20042 08,24 0,
N.6234458.14,2004370,250,
N,62 34423.6,2004532,260,
6234380.58,2 004690,270,
6234319.53,2004893, 280,
N,6234272.78,2005048,283,
N,6234177.56,2005364, 282,
N,6234 071.45,2005716,272,
L-Southbound, 3
6236691.0,2001153,71,
N,6236493.8,200128 8,79,
N,6236337.4,2 001349,84,
N,6235973.4,2 001588,101,
N,6235766.6,2001724,111,
N,6235566.7,2 001890,121,
H,6235383.5,2 002081,131,
K,6235225.9,2002287,141,
N,6235092.9,2002503,151,
N,6234987.6,200272 8,160,
M N,6234904.3,2002906,170,
N,623482 0.5,2003085,180,
^ N,€234734.8,200327 0,190,
H,62 34 651.3,2003443,200,
• L-Southbound, 4
N,6234651.3,2003443,200,
* N,6234576.4,2003634,211,
a N,6234518.6,200383 3,221,
N,62344 81.5,2004018,23 0,
PI N, 6234447.2,2004201,240,
N,6234416.9,2004362,250,
ii
m
m
m
N,62343 82.7,2 004522, 2 60,
N, 62 34340.1,2004 679, 2 70,
br, 6234279.3,2004881, 2 80,
N,6234232.5,2005036.2 83,
« N,6234137.3,2005352,282,
N,6234 031.2,2005703, 272,
m R, 1 , 67 ,500
523 5570.14,2G01752.17,165,MI
R, 2 , 67 ,500
6235453.62,20024 99.4 3, 195,M2
R, 3 , 67 ,5C0
6234 8 58.98,2003700.15, 254,M3
R, 4 , 67 ,500
6236131.06,2001370.5,141,4
R, 5 , 67 ,500
•I 6235774.31,2001578,8,159,5
R, 6 , 67 ,500
m 62354 52.56,2001798.3,131,6
R, 7 , 67 ,500
62352 89.76,2001959.3, 185,7
R, 8 67 , 500
• 6235040.89,2002251.37, 217,8
m R, 9 , 67 ,500
6234 889.5,2002463.72,23 9.9
« R, 10 . 67 ,500
6234322.23.2003 953.4 9,264,10
R, XI , 57 ,500
6234222.95.2004 330.2 3,281,11
R, 12 , 67 ,500
^ 6234 3 90.87,2004908.78,2 59,12
R, 13 . 67 ,500
^ 62344 66.87,2004686.11, 300,13
R, 14 , 67 ,500
m 6234864.5,2003764,26 5,14
R, 15 , 67 ,500
^ 6234 990.99,2003411.66,24 0,15
R, 16 , 67 ,500
6235173,2003034.87,215,16
17 , 67 ,500
6235414.99,2002609.54,203, 17
m R, 18 , 67 ,500
6235745.51,2 002108.3 3, 179, 18
PI R, 19 , 67 ,500
€2360 75.5,2001770.3,138,19
* R, 20 , 67 ,500
52 364 32 .6,2001560,101,20
m R. 21 , 67 ,500
^ 6234438,2003372,298.,9b
il
il
m
SOUND32 - RELEASE 07/30/91
TITLE:
El Camino Real Widening ~- Existing fSC3<.EX]
BASED ON FHWA-RD-108 AND
CALIFORNIA REFERENCE ENERGY MEAN EMISSION LEVELS
m RECEIVER LEQ
m Ml 70.5
M2 67 .2
m M3 57.5
m 4 70.2
5 70.0
mm 6 69.1
7 69. 0
m 8 68.3
9 67.7
mm 10 68.8
Mi li 68.3
12 72.2
13 71.6
mm 14 67.0
m 15 67.2
16 67 . 1
wm 17 66. 8
18 67.5
m 19 68.9
20 68.7
mm Sb 67.2
El Camino Real Widening ~- Future CECR.fut)
T-El Camino Real, 1
1652 , 55 , 61 , 55 , 22 , 55
T-Bl Camino Real, 2
1652 , 55 , 61 , 55 , 22 , 55
T-El Camino Real, 3
1652 , 55 , 61 , 55 , 22 , 55
T-El Carr.ino Real, 4
1652 , 55 , 61 , 55 , 22 , 55
L-Northbound, 1
N,6236718.0,2001193,72,
N, 6236519.4,2001328,80,
N, 6236411.5,2001391,84,
N, 6235998.7,2001629,100,
N, 62 35795,2,2001763,110,
N, 623 5599.4,2001925,120,
N,6235420.,2002112.130,
N, 6235265.6,2002314,140,
N, 6235135.2,2002531,150,
N, 6235031.0,2002748,160,
N, 6234947.8,2002 927,170,
N,6234864.1,2003106,18 0,
N, 6234778.3,2 003290,190,
L-Northbound, 2
N, 6234778.3,2003290,190,
N, 62 34655.8,2003467,200,
N, 6234621.8,2003650,210,
N, 5234565.2,2003844,220,
N, 6234528.6,2004028,230,
6234494.3,2004210,240,
N, 6234464.0,2004371,250,
N, 6234429.4,2004533,260,
N,6234386,3,2004632,270,
N,6234325.2,2 004894,230,
N,6234278.5,2005050,283,
N,6234183.3,2005366,282,
N,6234 077.1,2005717,272,
L-Southbound, 3
N,6236687.7,2001149,71,
N,6236490.6,2 001283,79,
N,6236384.4,2001344,84,
N,6235970^3,2001583,101,
N,6235763.0,2001720,111,
N,6235562.6,2001886,121,
N,6235378.9,2002077,131,
N,5235220.9,2002284,141,
N,6235087.6,2002506,151,
N,6234982.2,2 002725,160,
to N,62 34898.9,2002904,170,
N,6234815.1,20 03084,180,
N,6234729.4,2003268,190,
6234646.3,2003446,200,
L-Southbound, 4
N,6234646.3,2003446,200,
N,6234570.8,2003632,211,
N,62345X2.7,2003831,221,
N,6234475.5,2004017,230,
N,6234441,3,2004200,240,
N,6234411.0,2004361,250,
m
m
m
m
m
N,6234376.9,200452 0,2 60,
N,6234334.4,2004677,2 70,
N,6234273.5,2004879,280,
N,6234226.8,2005034,283,
N,6234131.6,2005350,2 82,
N,6234025-4,2005702, 2 72,
R, 1 , 67 ,500
62 35570.14,2001752.17,165,Ml
R, 2 , 67 ,500
6235453.62,2002499.4 3,195,M2
R, 3 , 67 ,500
6234858.98,2003700.15,254,M3
R, 4 , 67 ,500
6236131.06,20013 70.5,141,4
R. 5 , 67 ,500
6235774.31,2001578.8,159,5
R, 6 , 67 ,500
6235452,56,2001798.3,181,6
R, 7 , 67 ,500
62 3 5289.76,2001959.3, 135,7
R, 8 , 67 ,500
62 35040.89,2002251,37,217,8
R, 9 , 67 ,500
6234889-5,2002463.72,239.9
R, 10 , 67 ,500
6234322 .23,2003953.4 9,2 64,10
R, 11 , 67 ,500
6234222.95,2004 33 0.23,2 81,11
R, 12 , 57 ,500
62343 90,87,2004908.78,2 99,12
R, 13 , 67 ,500
6234466.87,2004686.11,3 00,13
R, 14 , 67 ,500
6234 864.5,2003764,265,14
R, 15 , 67 ,500
6234 990.99,2003411.66,240,15
R, 16 , 67 ,500
52 3 5173,2003 034.87,215,16
R, 17 , 67 ,500
62 3 5414.99,2002609.54,203,17
R, 18 , 67 ,500
62 3 574 5.91,2002108.33,179,18
R, 19 , 67 ,500
623 6075.5,2001770.3,138,19
R, 20 , 67 ,500
623 64 32.6,2001560,101,20
R, 21 , 67 ,500
6234438,2003372,298.,9b
C,C
SOUNB32 - RELEASE 07/30/91
TITLE:
El Camino Real Widening Future {ECR.fut)
BASED ON FHWA-RD-108 AND
CALIFORNIA REFERENCE ENERGY MEAN EMISSION LEVELS
mm RECEIVER LBO
m Ml 72.1
M2 68.7
mm .M3 69.0
m 4 71.8
5 71.6
m 6 70.7
7 70.6
m 8 69.9
9 69.3
mi 10 70.4
m 11 69.8
12 73.9
mm-13 73.2
14 53.6
m 15 68.8
16 68.7
mm 17 68.3
18 69.1
m 19 70.5
20 70.3
9b 68.8
APPENDIX C
Cultural Resources Report
(ASM Affiliates, September 2007)
Ml
J
archaeology
history
architectural history ethnography
September 4,2007
Mr. Shawn Shamlou
Dudek & Associates
605 Third Street
Encinitas, Califomia 92024
Re: Cultural Resource Report for the El Camino Real Widening Project, Carlsbad, San Diego County,
Califomia.
Dear Mr. Shamlou,
This letter report summarizes a cultural resource study conducted by ASM Affiliates, Inc. (ASM) for the
widening of El Camino Real from Tamarack Avenue to Chestnut Avenue in Carlsbad, San Diego County,
Califomia. The smdy included a records search conducted at the South Coastal Information Center and
San Diego Museum of Man, and a pedestrian survey of the project. No cultural resources were identified
within the project area as a result of this study.
Project Description
The City of Carlsbad (City) proposes to improve the section of El Camino Real from Tamarack Avenue
north to Chestnut Avenue. El Camino Real is a major north/south roadway serving as a vital parallel
circulation element to Interstate 5 (1-5) for the Cities of Encinitas, Carlsbad and Oceanside. As various
developments including subdivisions have occurred in the project vicinity, developers have been required
to widen El Camino Real to full prime arterial standards. This section of roadway, from Tamarack
Avenue to Chestout Avenue, is one of the few remaining sections of the El Camino Real that has not been
widened to its full width of six travel lanes with three northbound and three southbound lanes.
The proposed roadway improvements would result in a total width of 126 feet including:
• 8-foot-wide bike lanes on both sides of the roadway
• three southbound lanes, 12 feet wide each
• three northbound lanes, 12 feet wide each
• an 18-foot-wide landscaped median island
• 5 ?/2-foot-wide sidewalks on both sides of the roadway
• 4 ^/2-foot-wide native planted area (including a native planted swale) on both sides of the roadway
In the middle section of the roadway, the roadway would transition between the previously discussed
typical section to a modified width of 116 feet including:
• a 6 '/z-foot-wide bike lane on the west side of the roadway
• a 5-foot-wide bike lane on the east side
• three southbound lanes, 12 feet wide each
• a 14-foot-wide landscaped median island
• three northbound lanes, 11 Vi feet wide each
li
Mr. Shawn Shamlou
September 4, 2007
Page 2 of 13
• 5 y2-foot-wide sidewalks on both sides of the roadway
• 4 y2-foot-wide native planted area (including a native planted swale) on both sides of the roadway
The project proposes to keep the existing vertical profile of the road, and construction is anticipated to
extend approximately nine months.
Additional characteristics of the proposed project are described below.
Intersection Improvements. A traffic study was prepared for the subject project in April 2006 (LLG
2006). The purpose of the report was to analyze the operations at the two intersections along this segment
of El Camino Real, for the existing conditions and Year 2030 conditions. The report then identified
intersection improvements required to achieve acceptable level of service (i.e., LOS D). These
intersection improvements were consequently incorporated into the project design.
The 2030 traffic forecast analysis shows that in 2030, the El Camino Real/Tamarack Avenue intersection
would result in an LOS F during AM and PM peak hours (LLG 2006). As such, the project plans include
an additional northbound and southbound thru lane on El Camino Real, and an additional northbound left-
turn lane on El Camino Real at its intersection with Tamarack Avenue. This improvement would
improve the LOS at this intersection to LOS D or better in the AM peak hour and LOS C in the PM peak
hour. Accommodating the additional northbound and southbound lanes, just north of the intersection,
would consist primarily of re-striping the existing roadway, as sufficient width exists within the current
roadway geometry. Associated signal modifications to accommodate the new lane configuration would
also be provided.
At the EI Camino Real/Chestnut Avenue intersection, the project would result in the removal of the
existing free right turn islands located at the northwest and southwest comers of the intersection and
replace these with standard curb returns, pedestrian ramps, and associated signal modifications to
accommodate the road widening improvements. These intersection improvements must satisfy Americans
with Disabilities Act (ADA) requirements, and therefore, ramps that meet ADA gradient criteria would be
constmcted near the northwest and southwest comers to connect the improvements to existing sidewalks.
Storm Drains. Currently, the roadway in the APE exhibits erosion on the embankment on the east side,
pavement cracking and weathering, and bumps/sags. Storm water from the storm drains currently outlets
at erosive velocities into a ditch east of the roadway. Storm drains within the APE would be replaced
and/or improved.. The project includes the placement of erosion protection in the ditch and/or
constmction of check dams within the ditch to remedy the issue. The pavement for the roadway would be
overlaid with asphalt concrete and/or replaced with a full stmctural section as necessary.
Brow ditches are proposed along the west side of El Camino Real to prevent hillside stormwater from
flowing over the sidewalk and onto El Camino Real. The proposed locations are at Stations 513+50 and
536+00. The sizes of the brow ditches would vary from approximately 12-inch minimum depth to 24-
inch maximum depth.
Lighting. Overhead lighting is proposed as part of the project. Lighting would be installed per
applicable City standards for wattage and spacing. Each light pole would produce up to 22,000 lumens
and would be staggered at 300-foot intervals along both sides of the project section of El Camino Real.
Bus Stops. One existing North County Transit District (NCTD) bus stop located on the west side of El
Camino Real just south of Chestnut Avenue would be relocated as part of the project, although the
specific location is in the process of being determined in concert with North County Transit District. It is
assumed that the chosen location would not be located outside of the project Area of Potential Effects
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September 4, 2007
Page 3 of 13
(APE). A second bus stop exists along the east side of El Camino Real north of Tamarack Avenue. No
improvements or alterations to this bus stop are proposed.
Utilities. Depending on the availability of funding, the existing overhead power hnes along the west and
east sides of El Camino Real may be undergrounded as part of the project. Should funding be available at
the time of constmction, possibly as a joint cost sharing effort with SDG&E, the City would underground
these electrical utihties. If a funding source for undergrounding is not located, the existing power poles
along the west side, north of APN 207-090-20, Station 526+00, are proposed to be relocated 5 to 10 feet
to the west. The relocation or undergrounding of these poles is necessary to accommodate the proposed
street widening.
Grading. Minor grading would occur along the west side of El Camino Real to accommodate
constmction of proposed retaining walls, which are described below. Additional grading behind and at the
top of the retaining walls would occur to constmct brow ditches and drainage facilities. The proposed
grading at the top of the walls would be contoured to a 1.5:1 or 2:1 inclination to blend into the natural
look of the existing terrain. The proposed grading would range from 5 to 8 feet in height above the top of
wall.
Both minor grading and major grading would occur on the east side of the project. Minor re-grading is
required at two locations (at approximately Station 512+50 and Station 517+00) to stabilize the existing
fill slope adjacent to the east edge of the roadway, which also represents the west edge of the existing
drainage channel. These two locations are situated approximately in the middle third of the APE and
represent distressed areas where slope failure (Station 512+50) and sloughing (Station 517+00) have
occurred. The existing slope height at these areas varies from 5 feet or less to approximately 15 feet with
the height generally increasing toward the north. Both of these areas would be over-excavated and
reconstmcted with reinforced earth or equal methods in accordance with the geotechnical report for the
project to stabilize the slope and re-establish the initial slope inclination.
Major grading is proposed along the northern segment of the east side of El Camino Real, predominantly
across Assessor Parcel Numbers 167-230-24 and 167-230-25. Slope heights would range from 30 to 50
feet with the height increasing toward the south. The proposed grading will be contoured to a 1.5:1 or
variable slope inclination and be graded in such a fashion as to replace die in-kind driveway access to the
property.
Retaining Walls. Retaining walls are proposed on the west side of El Camino Real in the approximate
midpoint of the APE. A portion of the proposed retaining walls would be located outside of the project
ROW, therefore, property acquisition of 6,946 square feet (0.16 acre) would be required on Czajkowski
property (within parcel numbers 207-180-08, -09, -10, and -12), which is located approximately 2000 feet
south of the El Camino Real/Chesmut Avenue intersection. The height of the retaining walls would vary
from 6 feet to a maximum of 15 feet high. The specific wall types would be Caltrans cast-in-place
concrete or masonry block cantilever with fascia for walls less than 10 feet in height. These have a
concrete spread footing and a vertical retaining face.
For walls over 10 feet in height, a tieback wall type would be implemented. This type of retaining wall is
an anchored wall system that relies on steel bars grouted into the retained slope and a reinforced facing.
The anchors are prestressed to provide an active clamping force. The facing is typically constmcted with
reinforced shotcrete or cast-in-place concrete, and are constmcted with a "top-down" approach that does
not require substantial excavation behind the wail face.
The retaining walls are proposed to be built with a boulderscape architectural treatment and landscaping
screening. Drainage systems would be included behind the walls to allow proper drainage of the adjacent
hillside.
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September 4, 2007
Page 4 of 13
Landscape Concept Plan. A Landscape Concept Plan has been prepared as part of the project to provide
a transition between the ornamental landscape and natural landscape on either sides of the project reach of
El Camino Real. The Landscape Concept Plan takes into account the City's El Camino Real Corridor
Development Standards by incorporating a median landscape treatment that continues adjacent median
designs. The specific objectives of the design include low water use, minimization of fire hazards,
minimization of visual impacts of the proposed retaining walls, and stabiUzation of disturbed slopes.
Staging Areas. Staging areas for temporarily storing constmction equipment would be identified during
final design of the project, and would be located within previously paved areas within the APE.
Existing Conditions
Residential development has occurred along both sides of this segment of El Camino Real. Above
ground utilities have been constmcted along the length of both sides of the project and a concrete-lined
drainage ditch has been constmcted on the west side of the project. There is a small grove of mature
eucalyptus trees located at the northwest comer of the project area (Figures 3 and 4). South of the
eucalyptus grove, there are a number of private residences with a gravel-covered driveway connecting El
Camino Real to asphalt-paved driveways extending to the residences. The portion of the project located
south of the residences has steep slopes overlain by a relatively level, heavily vegetated area.
A rather large drainage is located along the southem half of the east side of the project. A disced area is
maintained along the eastem edge of the drainage. A paved sidewalk runs along the east side of the
project, most of which is open space with a mix of native and non-native grasses and low shmbs. The
northern portion of the east side of the project is a vertical cutbank.
Soil deposits in the project include Marina loamy coarse sand in the far northwestem portion of the
project, Gaviota fine sandy loam in the northeastem portion of the project, and Salinas clay loam
throughout the remainder of the project.
Records Search Results
Records searches for the project were prepared by the South Coastal Information Center (SCIC) on March
9, 2006 and the San Diego Museum of Man on March 4, 2006. The records searches included a review of
archaeological site locations, bibliographic information, historic maps, and other databases of historic
resources. While the records searches identified numerous archaeological resources located within one
mile of the project, none of these is identified within the project area itself. The results of the records
searches are summarized below (Table 1). Sites on file at the SCIC are assigned with trinomial
designations, noted with a CA-SDI- prefix; those that have been assigned a primary number are noted
with a P-37- prefix. Sites on file with the Museum of Man are noted witii a SDM-W prefix. The full
results of the records search are considered confidential as they identify the location of archaeological
sites outside of the current project area. The cover letters for the searches are provided in Appendix A.
The remainder of the resuhs will be maintained on file with ASM.
Table 1. Previously Recorded Sites Within One Mile of die El Camino Real Widening Project
Site Number Site Type RecorderATear Recorded Notes
SDM-W-124 Habitation with burials Rogers/n.d.
SDM-W-132 Habitation with burials Rogers/n.d.
SDM-W-134 Shell midden Van Horn and Murray/1982
SDM-W-136 Habitation Rogers/n.d.
SDM-W-137 Habitation Rogers/n.d.
Mr. Shawn Shamlou
September 4, 2007
Page 5 of 13
m Site Number Site Type Recorder/Year Recorded Notes
SDM-W-143 Habitation Rogers/n.d.
CA-SDI-I3I78 Isolates Gallegos/1991 3 manos
m SDI-209 Shell midden with artifacts Van Horn and Murray/1982
SDI-631 Lithic scatter Wallace/1958 Ground stone and flaked
artifacts
SDl-4990 Habitation Ike and Kardash/1977 Mitigated
m SDl-5077 Habitation Hatiey/1977 Hosp Grove site
SDM-W-143/146 Habitation Norwood/1977, Wade/1985 Subjected to data recovery and
mm SDl-5213 monitored by Robbins Wade
m SDI-5214 Shell midden with lithics Norwood/1977 Shell and lithics
SDI-5353 Habitation Van Horn and Murray/1982 a.k.a. the Cliff Site, noted as
m ehgible to the National
m Register m SDI-5651 Shell midden Hector/1983
SDI-5652 House Edwards/1977 Little information on site
record. Preservation was
• recommended when the site
was recorded.
SDI-6135 Habitation Van Horn and Murray/1982 Ground stone, fire-affected
m rock, marine shell, and faunal
remains
SDI-6139 Lithic and shell scatter Romani and naked and ground stone
Hawthome/1982 artifacts and marine shell
•1 SDI-6140 Shell midden with artifacts Van Horn and Mun:ay/1982 Lithic artifacts
«•
SDM-W-132
SDI-8303
Habitation Rogers/n.d., GaUegos/1999 Noted as SDI-13129 on top of
Rogers site form
m SDI-8913 Habitation Romani and
Hawthome/1981
Lithic scatter
mm SDI-8914 Lithic scatter shell Romani and
Hawthome/1981
Basalt flake
• SDI-9652 Lithic scatter Van Horn and Murray/1982
SDL9654 Habitation Van Horn and MurTay/1982 Midden with artifacts
SDI-9655 Habitation Van Horn and Murray/1982 Well-developed midden with
» artifacts
SDI-10024 Habitation Rogers/n.d.
m SDI-10025 Habitation Hedges/1978
SDI-10609 Habitation Wade/1985 Temporary shell processing
camp
SDM0610 Habitation Wade/1985 Temporary shell processing
camp
« SDI-10612 Shell scatter Wade/1985
SDM0746 Shell and artifact scatter Cardenas etal./1986 Destroyed by grading
m SDM3089 Shell midden Strud wick/1993
m SDI-13124 Sweathouse Rogers/n.d. Shell midden and artifacts m associated, excavated by
m Rogers m SDM37ai Habitation Strudwick and Shell midden with artifacts and
II Gallegos/1994 fire-affected rock
SDM4259 Shell midden ASM/1996 Small shell midden
m SDM4335 Habitation Schroth and Harris/1996 Excavated
m SDI-16130 Shell scatter Smidi/2001
SDI-16131 Shell scatter Smidi/2001
m SDH 6132 Shell scatter Sinilh/2001
mm SDH 6133 Shell and lithic scatter Smith/2001
Mr. Shawn Shamlou
September 4, 2007
Page 6 of 13
Site Number Site Type Recorder/Year Recorded Notes
SDM6137 Shell scatter Smith/2001
Of the sites recorded within a one-mile radius, two are located near the project:
SDI-5213/SDM-W-1330, SDM-W-143/146 is a large prehistoric habitation witii recorded
burials located north and west of the project area. The site was recorded by Rogers and
later updated by Norwood (1977) and Cardenas and Wade (1985). Cardenas and Wade
tested the site for the Rising Glen development in 1985. The updated site form notes that
21 1 x2m^ test units were excavated and that, while the site is legally mitigated, it still held
research potential. The site was monitored during grading for the Rising Glen
development in 1986.
SDI-5214/SDM-W-1331 is a prehistoric habitation that includes a large shell midden,
lithic and ground stone and ceramic artifacts and one possible milling station. The site
record mentions that plowing impacted the land and a large private residence is now
present on the property.
Fifty-one cultural resource surveys have been conducted within a one-mile radius of the project (Table 2).
Of these, five bisected the project area. The previous cultural resource surveys conducted within the
study area include the following:
Table 2. Previous Cultural Resource Studies Within One Mile of the Project
mm NADB Number Surveyor Date Surveyed Results
1125147 Berryman 2000 Positive
^m 1122623 Bissell 1990 Positive
1122045 Brandman 1983 Positive
1125343 Brown 2001 Negative
m 1126094 Bull 1976 Negative
1124229 Bull 1977 Positive
mm 1120659 Bull 1978 Positive
m 1120645 Bull 1979 Positive
1129361 Byrd and O'Neill 2002 Positive
1125018 Cardenas 1985 Positive
1124325 Carrico 1977 Positive
m 1120424 Carrico and Phillips 1981 Positive
1122007 Chamberlain 1974 Positive
mm 1121394 Eighmey and Wade 1990 Positive
m 1122016 Elfend 1984 Positive
1122088 EIP 1974 Positive
m 1121016 Gallegos and Pigniolo 1987 Negative
w 1120675 Gallegos and Carrico 1984 Positive
1121037 Gallegos and Carrico 1984 Positive
Ml 1129136 Gallegos and Strudwick 1991 Indeterminate
1123163 Gross et al. 1990 Positive
1120980 Gross and Bull 1973 Positive
1129586 Geurrero and Gallegos 2003 Positive
m 1121122 Hector 1981 Positive
m 1121129 Hector 1985 Positive
1128738 Hector 1985 Positive
mm 1120681 Hector 1986 Positive
1120716 Kaidenberg 1976 Positive
Mr. Shawn Shamlou
September 4, 2007
Page? of 13
m NADB Number Surveyor Date Surveyed Results
1120889 Koerper, Langenwalter, Schroth 1986 Positive
mm 1124209 Koerper 1986 Positive
W 1128089 Kyle 1999 Negative
1121745 McCorkle Apple 1987 Negative
mm 1128729 Mitchell 1989 Positive
1122053 Nasland Engineering 1983 Positive
m 1123472 Pigniolo and Wahoff 1998 Positive
1121698 Polan 1983 Positive
m 1124895 RECON 1976 Negative
m 1124940 RECON 1977 Positive
1123272 Schrotii 1996 Positive
m 1123273 Schroth and Gallegos 1996 Positive
1124111 Seeman 1982 Positive
1121431 Smith 1989 Negative
mm 112358S Smitii 1998 Positive
1122691 Strudwick 1993 Positive
1128314 Tuma 2003 Positive
1121579 Wade and Hector 1986 Positive
m 1122598 Wade 1992 Positive
m 1121661 Wade 1987 Negative
1121595 Whitehouse and Wade 1990 Positive
m 1121643 Wlodarski and Romani 1981 Positive
1128750 Ultrasystems 1983 Positive
w 1120239 Unknown 1986 Positive
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A review of historic maps of the project area did not reveal any stmctures within the project area. El
Camino Real is a major, paved thoroughfare dating from the Mission Era and extending in a continuous
route from the Intemational Border to San Francisco; however no known historic sites are recorded within
the project area. A search of the GeoFinder database, which includes information from the National
Register of Historic Places, Califomia Register of Historic Resources, California State Landmarks,
Califomia Points of Historic Interest and other historic property lists was included with the records search
results; no such properties were identified.
Study Results
ASM Archaeologists Drew Pallette and Catherine A. Wright surveyed the area of potential effects on
March 27, 2006 and April 5, 2006. For the most part, the project is paved or otherwise developed with
utilities and a concrete-lined drainage ditch. Both sides of the project have segments with steep-sided,
heavily vegetated slopes and these areas were subjected to purposive survey. The remainder of the
project was surveyed at 10-meter intervals.
A small grove of mature eucalyptus trees is located in the northwestem portion of the project. This area
has been subjected to extensive manual excavation, most likely from children constmcting ramps and
jumps for off-road bicycling (Figure 5); the remainder of the grove is covered with a heavy leaf litter.
The area that had been excavated was subjected to close inspection, as it was the best indicator of possible
subsurface archaeological deposits. One piece of marine shell and one fragment of the end of a large
mammal bone were identified in this area. However, no further manifestations of cultural resom-ces were
identified even after an intensive study of excavated areas and the resulting backdirt. The west-central and
southwest portions of the project are comprised of cut slope extending essentially to the edge of pavement
or to the edge of the sidewalk. Portions of this area have swaths of open land on top of the slopes and,
when accessible, these were surveyed. For the most part, however, these areas were heavily vegetated
and ground visibility was moderate at best.
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The eastern side of the project area consists of a rather deep drainage located approximately 30 feet east
of the eastem edge of pavement. A disced area is maintained on the eastem side of the drainage and there
is a small section of cut slope at the northern end of the project. Most of the east side of the project area is
western-sloping open space with a mix of native and non-native grasses and low shmbs. The more level
areas of this portion of the project were subjected to intensive survey; the steep slopes and drainage
bottom were purposively surveyed. No cultural resources were identified during ASM's survey of the
property.
Conclusions and Management Recommendations
The results of records searches conducted for the project were positive in that a number of cultural
resources were identified within one mile of the project area. One piece of marine shell and one fragment
of large mammal bone were identified during the survey but a close inspection of extensive excavations in
the area where these were found did not reveal any further potentially cultural remains. However, a
number of large habitation sites are located within a one-mile radius of the project. Due to the heavy leaf
litter and the presence of large archaeological sites in the vicinity, archaeological monitoring in the
eucalyptus grove located in the northwest portion of the project is recommended. This includes the area
located on the west side of El Camino Real from the intersection of El Camino Real and Chestnut Avenue
and extending south to the first residential development located south of this intersection.
If you should have any further questions regarding this report, please do not hesitate to contact me.
Respectfully submitted.
John
President
Attachments: Figure!. Project Vicinity Map
Figure 2. Project Location Map
Figure 3. Eucalyptus grove south of intersection of Chestnut Avenue and El Camino
Real, view to south
Figure 4. Eucalyptus grove south of intersection of Chestnut Avenue and El Camino
Real, view to north
Figure 5. Eucalyptus grove south of intersection of Chesmut Avenue and El Camino
Real, view to south from inside of grove.
Figure 6. Looking south down El Camino Real
Figure 7. View from east of El Camino Real looking northwest
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Confidential Appendix A. Records Search Results
Mr. Shawn Shamlou
September 4, 2007
Page 9 of 13
RIVERSIDE COUNTY
SAN DIEGO COUNTY
WARNER SPRINGS
DIEGO
0 5 10
miles
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Figure 1. Project vicinity map