HomeMy WebLinkAbout3951; La Golondrina & El Fuerte St Sewer Extention; La Golondrina & El Fuerte St Sewer Extention; 2008-09-01BIOLOGICAL RESOURCES
TECHNICAL REPORT
for the
LA GOLONDRINA and EL FUERTE STREET HDD
SEWER EXTENSIONS
San Diego County, California
Prepared for:
City of Carlsbad
1635 Faraday Avenue
Carlsbad, California 92008
Contact: Mark Biskup
Prepared by:
DUDEK
605 Third St.
Encinitas, CA 92024
Contocf Callie Ford
(760) 942-5147
SEPTEMBER 2008
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Printed on 30% post-consumer recycled material.
Biological Resources Technical Report
La Golondrina and El Fuerte Street HDD Sewer Extensions
TABLE OF CONTENTS
Section Page No.
SUMMARY OF FINDINGS 1
1.0 INTRODUCTION 3
1.1 Project Location and Site Description 3
1.2 Project Description 4
1.3 Regulatory Context 9
2.0 SURVEY METHODS 9
2.1 Literature Review 9
2.2 Field Reconnaissance Methods 10
3.0 RESULTS OF SURVEYS 12
3.1 Botany-Vegetation Communities and Floral Diversity 12
3.2 Zoology-Wildlife Diversity 20
3.3 Special-Status Biological Resources 21
4.0 IMPACTS 30
4. i Permanent Impacts 30
4.2 Temporary Impacts 30
5.0 RECOMMENDED AVOIDANCE AND MINIMIZATION MEASURES 32
5.1 HMP Compliance 32
5.2 Recommended Minimization and Mitigation 34
6.0 ACKNOWLEDGMENTS 34
7.0 DOCUMENTS CITED 34
APPENDICES
A Vascular Plan Species Observed
B Wildlife Species Observed
C Jurisdictional Wetland Delineation Forms
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LIST OF FIGURES
1 Regional Map 5
2 Vicinity Map 7
3 Biological Resources Map and Proposed Sewer Extension-La Golondrina 13
4 Biological Resources Map and Proposed Sewer Extension-El Fuerte Street 15
LIST OF TABLES
1 Existing Vegetation Communities and Land Covers 12
2 Special-Status Plant Species Observed or Potentially Occurring
at the Project Study Area 22
3 Special-Status Wildlife Species Observed or Potentially Occurring
on the Project Study Area 26
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SUMMARY OF FINDINGS
The proposed project consists of the extension of two pipelines constructed using the horizontal
directional drilling (HDD) method which is a trenchless method and avoids direct removal of
vegetation. The two proposed pipeline extensions are located in the City of Carlsbad, California
(City) in coastal north San Diego County. One pipeline is located between La Golondrina Street
and Vermarine Court (La Golondrina), and the other off El Fuerte Street (El Fuerte). Both are
located east of Interstate 5 (1-5), south of Palomar Airport Road, north of La Costa Drive, and
west of Melrose Drive.
Vegetation mapping and general plant and wildlife studies were performed by Dudek in August
2008. The project study area includes nine vegetation communities or land cover types were
identified on site; the two dominant vegetation communities are coastal sage scrub and southem
mixed chaparral. The special-status wildlife and plant species that occur within the proposed
project area include the coastal Califomia gnatcatcher (Polioptila californica californica) and
Califomia adolphia (Adolphia californica).
Dudek evaluated the direct and indirect, impacts to vegetation communities and land covers
based on the proposed project. Implementation of the proposed project will result in minor
impacts from an open-trench area used for installing the the pipeline to the manhole or lift
station, and from the staging area and drill rig. Implementation of the proposed project would not
result in significant direct impacts to native vegetation communities, including coastal sage
scmb, coastal and valley freshwater marsh, or chaparral. However, the project may result in
significant indirect impacts to nesting bird species, including the coastal Califomia gnatcatcher,
from noise and ground vibration and to native vegetation communities, including coastal and
valley freshwater marsh, from dust or mnoff
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1.0 INTRODUCTION
The City of Carlsbad (City) proposes to extend two separate, but related sewer pipelines in order
to convey the wastewater tributaries to the City's sewer system. The two projects. La Golondrina
Lift Station sewer extension (La Golondrina) and La Costa Meadows 3 sewer extension to El
Fuerte Street (El Fuerte), are discussed below.
1.1 Project Location and Site Description
The sewer extension projects are both located in the City of Carlsbad, Califomia in northwestem
San Diego County (Figure I). These areas lie east of Interstate 5 (1-5), north of La Costa Avenue,
south of Palomar Airport Road and west of Melrose Drive. Both areas can be accessed by
Pointsettia Lane or Alga Road between Melrose Drive and El Camino Real. They are located in
Township 12 South, Range 4 West, and Section 24 of the Encinitas U.S. Geological Survey
(USGS) topographic quadrange map. The La Golondrina Lift Station is located off of La
Golondrina Street and the sewer will extend southwest to Vermarine Court; and the La Costa
Meadows 3 Lift Station is located off of Chorlito Street and will extend west to El Fuerte (Figure
2).
The proposed La Golondrina pipeline extension is located in an open space area between the
west cul-de-sac of La Golondrina Street and the east cul-de-sac of Vermarine Court. There is a
paved access road on Vermarine Court.
The proposed El Fuerte pipeline extension is located in an open space area between the north and
west cul-de-sacs of Chorlito Street and Carillo Way, respectively, and El Fuerte. There is a paved
access road off of EI Fuerte, southeast of the RV parking lot.
1.2.1 Topography
The study area is located within the coastal area of San Diego. Much of the surrounding area has
been developed by residential or commercial buildings. The terrain within the study area tends to
be rolling or undulating hills, and open space areas are dominated by coastal sage scmb, southem
mixed chaparral, and Califomia annual grassland. Site elevations range from approximately 200
feet to approximately 400 feet above mean sea level (AMSL).
1.2.2 Soils
The Soil Survey of San Diego Area, California. Part I, Sheet 22 (Bowman 1973) was consulted
and one soil type was mapped within both of the study areas: Huerhuero loam (HrE2). The
Huerhuero Series consists of moderately well drained loams that have clay subsoil. Slopes range
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from 2% to 30% and elevations range fi-om 10 to 400 feet AMSL. No other soil types were
mapped as occurring in the study area.
The Huerhuero Series (Order: Entisols; Suborder: Typic Xeropsamments) consists of deep,
somewhat excessively drained soils that formed in recent sandy alluvium derived from acid
sandstone and related rocks. Huerhuero soils occur on alluvial fans and in small valleys that have
slopes of 15% to 30%. This soil type has rapid permeability and an available water holding
capacity of 3.5 to 4.5 inches. Runoff is medium to rapid and the possibility for erosion is
moderate. Due to the clay subsoil, the Huerhuero loam soil type is known to often support clay
endemic special-status plant species.
1.2 Project Description
1.2.1 La Golondrina
The La Golondrina Lift Station was constmcted in 1984 to provide service to Tract CT73-29,
and pumps wastewater from the Tract to the Leucadia County Water District. With the
constmction of the Poinsettia Lift Station in 1998 and this proposed sewer extension, the City is
now able to convey the wastewater tributary to the City's sewer system. In addition, the La
Golondrina Lift Station will be removed. The proposed project would require horizontal
directional drilling (HDD) through approximately 900 feet between La Golondrina Street and
Vermarine Court. The study area to determine the project's effects on biological resources covers
a 200-foot buffer (100 feet on each side) around the proposed pipeline.
1.2.2 El Fuerte
The La Costa Meadows 3 Lift Station has served as a temporary diversion for the City's
wastewater flows since 2000. The diversion must be removed by 2010, and a gravity sewer
pipeline from the lift station on Chorlito Street to El Fuerte is proposed. In addition, the lift
station will be removed and the sewer will be within the City's sewer service area. The proposed
project would require HDD through approximately 1,900 feet between Chorlito Street and EI
Fuerte. The study area to determine the project's effects on biological resources covers a
200-foot buffer (100 feet on each side) around the proposed pipeline. In addition, the pipe will be
layed out along the sidewalk of La Golondrina Street and along the shoulder of El Fuerte. The
placement of the pipe will be confmed to current developed areas.
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Orange
County
La jQlla
San Diego
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Regional Map
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SOURCE: USGS]7.5 Minute Series, Encinitas & Rancho Santa Fe Quadrangle anta Fe Quadrangle L /• % 9 0 1.000 2.000
^=iFeet
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Vicinity Map
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1.3 Regulatory Context
1.3.1 Habitat Mangement Plan
Both of the open space areas where the pipeline extensions are proposed are located within the
Carlsbad Habitat Management Plan (HMP) existing Hardline Conservation Areas. The La
Golondrina Street pipeline is located within Local Facility Management Zones (LFMZs) 6 and
10; and the El fuerte pipeline is located within LFMZ 18. Any work conducted in these
conservation areas must comply with the HMP guidelines (City of Carlsbad 2004).
1.3.2 Wetland Permitting
If there are any impacts to areas under the jurisdiction of the U.S. Army Corps of Engineers
(ACOE), Califomia Department of Fish and Game (CDFG), or the Regional Water Quality
Control Board (RWQCB), then a permit must be obtained in order to comply with their
regulations. Section 401 and 404 Permits, pursuant to the federal Clean Water Act, are required
for any impacts (i.e., discharge of fill material) to wetland or non-wetland areas under the
jurisdiction of the ACOE/RWQCB; a Section 1602 Permit, pursuant to the state Fish and Game
Code, is required for any impacts (i.e., discharge of fill, dredging, or vegetation removal) to
riparian or streambed areas under the jurisdiction of the CDFG.
2.0 SURVEY METHODS
Data regarding biological resources present in the project study area were obtained through a
review of pertinent literature and through previous field reconnaissance efforts that included the
project study area. Both are described in detail below.
2.1 Literature Review
The City is participating in regional conservation efforts through the implementation of the
Carlsbad HMP (City of Carlsbad 2004). This serves as Carlsbad's subarea plan under the
Muhiple Habitat Conservation Program (MHCP). The City also created guidelines for biological
studies (Technology Associates 2008) which summarizes the HMP and conservation planning
efforts and provides guidelines on conducting surveys are preparing technical reports. These
documents were reviewed in order to comply with the HMP and City's guidelines.
In order to determine which special-status species could occur within the project study area, the
Califomia Natural Diversity Database (CNDDB) (CDFG 2004) was searched for the Encinitas
USGS Topographic quadrangle.
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General information regarding wildlife species present in the region was obtained from Stebbins
(2003) for reptiles and amphibians, Sibley (2003) for birds, Jones et al. (1997) for mammals, and
Emmel and Emmel (1973) for butterflies. General information regarding vegetation communities
were obtained from the CDFG (2003), Holland (1986) and Sawyer and Keeler-Wolf (1995).
Plant species nomenclature follows Hickman (1993).
2.2 Field Reconnaissance Methods
2.2.1 Resource Mapping
Vegetation communities were mapped in the field directly onto a 200-scale (I" = 200') false-
color digital orthographic map (AirPhotoUSA 2005) of the property. These boundaries and
locations were digitized by Dudek Geographic Information Systems (GIS) technician Lesley
Terry using ArcGIS software.
Vegetation community classifications used in this report primarily follow the Preliminary
Descriptions of the Terrestrial Natural Communities of California (Holland 1986).
2.2.2 Flora
All plant species encountered during the field survey were identified and recorded. Species that
could not be idenfified immediately were brought into the laboratory for fiirther investigation.
Latin and common names of plants follow The Jepson Manual (Hickman 1993) or other recent
published taxonomic treatments.
2.2.3 Fauna
Surveys were conducted by walking throughout the entire study area to ensure that 100% visual
coverage was obtained. Wildlife species detected during the field survey by sight, calls, tracks,
scat, or other signs were recorded. Binoculars (7 x 50 power) were used to aid in the
identification of observed wildlife. At regular intervals the biologists stopped, remained quiet,
and listened for wildlife vocahzations. All habitats in the study area were evaluated for potential
to support special-status wildlife species.
Latin and common names of animals follow Stebbins (2003) for reptiles and amphibians,
American Ornithologists' Union (2005) for birds, Jones et al. (1997) for mammals, and Emmel
and Emmel (1973) for butterflies. CDFG (2006) was used for special-status species where Latin
names have been changed.
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2.2.4 Speclal-status/Regulated Biological Resources
Special-status biological resources are those defined as follows: 1) species that have been given
special recognition by federal, state, or local resource agencies and environmental organizations
due to limited, declining, or threatened population sizes; 2) species and habitat types recognized
by local and regional resource agencies as special-status; 3) habitat areas or vegetation
communities that are unique, are of relatively limited distribution, or are of particular value to
wildlife; and 4) wildlife corridors and habitat linkages. Regulated biological resources may or
may not be considered special-status, but are regulated under local, state, and/or federal laws.
2.2.5 Jurisdictional Wetland Delineation
A preliminary jurisdictional delineation was conducted in one area to determine the presence of
definable channels and/or wetland vegetation, soils and hydrology. This site was evaluated using
the methodology set forth in the ACOE Wetland Delineafion Manual (Environmental Laboratory
1987) as ammended by issuance of the ACOE Arid West Supplement (ACOE 2006). A
Significant Nexus Analysis (SNA) in accordance with the ACOE Rapanos and Carabel Guidance
Document (EPA and ACOE 2007) was not conducted. Five soil pits were dug and the plants,
soil, and water (if present) were analyzed and document. The soil pits were mapped using a
Geographic Positing System (GPS) unit. These points are shown in shown in Figure 3. These
data were used to determine the jurisdiction of CDFG and RWQCB.
The jursidctional determinations provided in this report are considered preliminary; final
determinations would require completion of SNA and confirmation with the wetlands resource
agencies staff. The preliminary determinations are provided to determine the maximum extent of
potential jurisdictional areas and therefore define the area of necessary impact avoidance to
avoid any requirement for wetlands permits.
2.2.6 Survey Limitations
The general field survey was conducted on August 5, 2008, by Dudek biologists Callie Ford and
Jeff Priest. The survey was conducted between the hours of 0700 and 1115 under weather
conditions that did not preclude observation of special-status species (e.g., surveys were not
conducted during heavy fog or rain). A second site visit was required to perform the preliminary
jurisdictional wetland delineation. This was performed on August 28, 2008 by Dudek biologists
Callie Ford and Vipul Joshi. The survey was conducted between the hours of 1300 and 1500.
The surveys were limited due to seasonal timing which precludes detection of most spring annual
plant species as well as some spring and winter migratory birds. Also, several types of wildlife
are not readily detected during daytime surveys including most reptiles, amphibians, and small
mammals. No trapping surveys or other focused species surveys were conducted. However, the
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surveys were adequate to determine suitable habitat for special-status plant and wildlife species
as well as to map vegetation communities and potential jurisdictional areas.
3.0 RESULTS OF SURVEYS
3.1 Botany-Vegetation Communities and Floral Diversity
The project study area is within a 200-foot buffer around each of the proposed sewer extension
areas. It is assumed that the project impacts would be confined within the 200-foot buffer.
The vegetation communifies and land covers mapped during the field survey are described
below. Included (where applicable) are the codes corresponding to Holland (1986). Vegetation
community acreages are presented in Table 1 and their locations are depicted on Figures 3 and 4.
Table 1
Existing Vegetation Communities and Land Covers
Vegetatk)n(^mmantty/Laml Cover Type
LaGolondrtiKr
(Acres)
El Fuerte
(Acres)
Non-native grassland 0 0.83
Eucalyptus woodland 0.28 0
Native Upland Communities
California sagebrush scrub 0.53 1.46
Disturbed California sagebrush scrub 0 0.10
Southern mixed chaparral 0.55 0
Native Riparian Communities
Coastal and valley freshwater marsh' 0.02 0.01
Southem willow scrub^ 0.03 0
Land Covers
Developed 0.53 0.18
Disturbed 0 0.13
Ornamental 0.22 0.03
Total 2.16 2.74
' The coastal and valley freshwater marsh is under the jurisdiction of ACOE, CDFG, and RWQCB.
^ The southem willow scmb is under the jurisdiction of CDFG.
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La Golondrina Street Biological Resources with Limit of Impact
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3.1.1 Coastal Sage Scrub
According to Holland (1986), coastal sage scrub is composed of a variety of soft, low shrubs,
characteristically dominated by drought-deciduous species such as Califomia sagebrush
(Artemisia californica), flat-top buckwheat (Eriogonum fasciculatum), and sages (Salvia spp.),
with scattered evergreen shrubs, including lemonadeberry (Rhus integrifolia) and laurel sumac
(Malosma laurina). It typically develops on xeric slopes.
Coastal sage scrub and all its variants generally are recognized as sensitive plant communities by
local, state, and federal resource agencies. It supports a diversity of sensitive plants and animals,
and it is estimated that it has been reduced by 75% to 80% of its historical coverage throughout
southem Califomia. It is the focus of the current State of Califomia Natural Communities
Conservation Planning Program (NCCP).
On site, coastal sage scmb is found within both project site study areas. The coastal sage scmb
on site is dominated by black sage (Salvia mellifera) and flat-top buckwheat (Eriogonum
fasciculatum) with scattered Califomia sagebmsh (Artemisia californica). Some of the area has
been disturbed by ornamental plantings (Eucaplytus spp. and Acacia spp.) and is mapped as
disturbed coastal sage scmb. There is approximately 2.08 acres of coastal sage scmb, including
0.1 acre of disturbed coastal sage scmb, within the project areas.
3.1.2 Coastal and Valley Freshwater Marsh
According to Holland (1986), coastal and Valley freshwater marsh is a wetland habitat type that
develops where the water table is at or just above the ground surface, such as around the margins
of lakes, ponds, slow-moving streams, ditches, and seepages. Due to being permanently flooded
by fresh water there is an accumulation of deep, peaty soils. It typically is dominated by species
such as cattail (Typha sp.), wooly sedge (Carex lanuginosa), yellow nutsedge (Cyperus
esculentus), and bulmsh (Scirpus sp.).
This community is found within both of the study areas and there is approximately 0.3 acre
within the project area. The coastal and valley freshwater marsh is fed from a culvert that
supports a small area of narrow-leaved cattail (Typha angustifolia) which is surrounded by
omamental ground cover. A jurisdictional wetland delineation was performed in the study area
and determined that there is hydrology and hydrophytic vegetation present. The soil could not be
analyzed because there was riprap over the area and a soil pit could not be dug. The coastal and
valley freshwater marsh in the El Fuerte study area was within a concrete channel and no soil
pits were dug; however, water and hydrophytic vegetation was present. Both of these areas are
considered to be under the jurisdiction of the ACOE, CDFG, and RWQCB.
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3.1.3 Southern Mixed Chaparral
Southem mixed chaparral consists of a mix of sclerophyllous chaparral species such as laiu^el
sumac (Malosma laurina), lemonade berry (Rhus integrifolia), chamise (Adenostema
fasciculatum), and holly-leaved redberry (Rhamnus illicifolia) (Gray and Bramlet 1992). Other
native shmbs present in this community may include bush monkeyflower, toyon (Heteromeles
arbutifolia), and scmb oak (Quercus berberidifolia).
On site, this community is primarily dominated by lemonade berry (Rhus integrifolia), laurel
sumac (Malosma laurina), and toyon (Heteromeles arbutifolia). There is approximately 0.55
acre of southem mixed chaparral within the La Golondrina study area.
3.1.4 Southern Willow Scrub
According to Holland (1986), southem willow scmb has been described as a dense, broad-leafed,
winter-deciduous riparian thicket dominated by several species of willow (Salix spp.), with
scattered emergent Fremont eottonwood (Populus fremontii) and westem sycamore (Platanus
racemosa). Most stands are too dense to allow much understory development. This habitat is
considered serai due to repeated disturbance/flooding and is therefore unable to develop into the
taller southern eottonwood willow riparian forest.
On site, the southem willow scmb is a small area of monotypic arroyo willow (Salix lasiolepis).
The trees are relatively mature and are approximately 10-15 feet in height. It is found within the
La Golondrina study area and approximately 0.03 acre occur within the central portion of the
project site. A jurisdictional wetland delineation was performed within the southem willow
scmb. Hydrophytic vegetation and hydric soils were present; however the evidence of hydrology
was not significant enough to meet ACOE/RWQCB criteria. This area is considered to be under
the jurisdiction of CDFG only.
3.1.5 Non-Native Grassland
Non-native grassland is characterized by a mixture of weedy, introduced annuals, primarily
grasses. It may occur where disturbance by maintenance (mowing, scraping, discing, spraying,
etc.), grazing, repetitive fire, agriculture, or other mechanical dismption have altered soils and
removed native seed sources from areas formerly supporting native vegetation.
On site annual grassland consists of various annual non-native grasses including wild oat (Avena
fatua), slender oat (Avena barbata), and bromes (Bromus diandrus, B. madritensis ssp. rubens,
B. tectorum). Other herbaceous species typically found in marginal zones near disturbed land and
other soil disturbance include Mediterrainean mustard (Hirschfeldia incana) and tocalote
(Centaurea melitensis). Some of these grasslands include occasional components of Califomia
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sagebmsh scmb species (described above) but the low cover of these species does not warrant
mapping as scmb. Non-native grassland is located within the El Fuerte study area and
approximately 0.83 acre occur within the northeastern portion of the project site.
3.1.6 Eucalyptus Woodland
Although not recognized by Holland (1986) as a native plant community, eucalyptus woodland is
a distinct "naturalized" vegetation type that is fairly widespread in southem Califomia and is
considered a woodland habitat. It typically consists of monotypic stands of introduced Australian
eucalyptus trees (Eucalyptus spp.). The understory is either depauperate or absent owing to shade
and the possible allelopathic (toxic) properties of the eucalyptus leaf litter. Although eucalyptus
woodlands are of limited value to most native plants and animals, they frequently provide
nesting and perching sites for several raptor species.
The eucaplytus trees on site are mature, approximately 40-50 feet in height, and one raptor nest
was observed in the eucalyptus tree. This community is foimd only within the La Golondrina site
area and approximately 0.28 acre occurs within the eastern portion of the study area.
3.1.7 Ornamental
Omamental plantings refer to areas where non-native omamentals and landscaping have been
installed. Omamental plantings are not regulated by the environmental resource agencies, and do
not require mitigation. Other agencies such as Caltrans, or local govemments, may require that
disturbed or damaged omamental plantings be replaced to restore aesthetics or function such as
screening or erosion control. Omamental plantings, such as eucalyptus (Eucalyptus spp.),
iceplant, and acacia (Acacia spp.) are found within both project areas and approximately 0.25
acre occurs within the study areas.
3.1.8 Developed Land
Developed land consists of buildings, stmctures, homes, parking lots, paved roads, and
maintained areas. Developed areas do not support native vegetation. Developed land occurs
within both smdy areas and approximately 0.71 acre occur within the study areas.
3.1.9 Disturbed Land
Disturbed habitat refers to areas that are not developed yet lack vegetation, and generally are the
result of severe or repeated mechanical perturbation. Disturbed land usually is dominated by bare
ground or non-native dicotyledonous species including filaree (Erodium spp.), black mustard,
thistles (e.g., Cynara cardunculus, Carduus pynocephalus, and Centaurea melitensis).
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doveweed, and others. Disturbed land occurs within the El Fuerte study area and approximately
0.13 acre occurs within the northeastern portion of the study area.
3.1.10 Floral Diversity
Approximately 48 plant species or subspecies were identified within the project study area. Of
these, 30 species (62%) are native to the region and 18 species (38%)) are non-native.
The cumulative list of plant species identified in the project study area is provided as Appendix
A.
3.2 Zoology-Wildlife Diversity
3.2.1 General Wildlife
The project study area itself consists of two 200-foot wide buffers covering 4.89 acres, which
extend through various vegetation communities and land covers (see Table 1). Although the total
acreage of the project study area is small, the diverse vegetation communities and land covers
contain a large variety of habitats for upland and riparian species. This variety of habitats on site
potentially supports a variety of wildlife species.
3.2.2 Birds
A cumulative total of 27 bird species was observed during the field survey. Along with a number
of common Southem Califomia species representing the different habitat types, notable species
observed on the site include two raptors: red-tailed hawk (Buteo Jamaicensis), and American
kestrel (Falco sparverius) the Califomia gnatcatcher (Polioptila californica). Species typical or
more common of coastal scmb and chaparral observed on site include bushtit (Psaltriparus
minimus), mouming dove (Zenaida macroura), northem mockingbird (Mimus polyglottos),
Bewick's wren (Thryomanes bewickii), wrentit (Chamaea fasciata), Califomia towhee (Piplio
crissalis), and spotted towhee (Piplio maculatus). The cumulative list of bird species identified
in the project study area is provided as Appendix B.
3.2.3 Reptiles and Amphibians
One reptile species was observed during the field survey, westem fence lizard (Sceloporus
occidentalis).
One amphibian species was observed during the surveys, pacific treefrog (Hyla regilla). The site
generally lacks water for amphibian species, but some common species that may occur include
westem toad (Bufo boreas), San Diego alligator lizard (Elgaria multicarinata webbii), and San
Diego ringneck snake (Diadophis punctatus similis).
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3.2.4 Mammals
One mammal species, the desert woodrat (Neotoma lepida; midden), was observed during the
field survey. Other species expected to occur on the site include striped skunk (Mephitis
mephitis), Califomia pocket mouse (Chaetodipus californicus), and various mice species
(Peromyscus spp.).
3.2.5 Butterflies and Moths
Two butterfly species were observed during the field survey. Species observed on the site
include tiger swallowtail (Papilio rutulus) and the cabbage white butterfly (Pieris rapae).
3.2.6 Wildlife Movement and Corridors
The two proposed project areas are located within the City HMP Core 6 and Linkage D (City of
Carlsbad 2004). The HMP defines a Core area as areas "which consist of blocks of habitat that
are sufficiently large to reliably support breeding populations of species, or that are large and
intact enough to form ecologically fiinctional areas for preserve design"; it defines Linkage as "a
component of the preserve system established under the HMP, consisting of conserved habitat
that provides connectivity between Cores and to natural communities within the region" (City of
Carlsbad 2004). Core 6 is approximately 1,134 acres and includes a critical stand of southem
maritime chaparral and coastal sage scmb that supports coastal Califomia gnatcatchers. It also
has linkages to Core 5, Core 7, and Core 8. Linkage D connects to Core 5, north of the project
area. The HMP does not specify wildlife that use Linkage D for dispersal; however, it is adjacent
to a focused planning area of the City of San Marcos on the east side. The conservation area that
the proposed projects are located in are surrounded by residential developments and may support
dispersal of small birds and mammals (e.g., coyotes and bobcats).
3.3 Special-Status Biological Resources
3.3.1 Special-status Plant Species
One special-status plant species was identified in the project study area as a result of the survey:
Califomia adolphia (Adolphia californica). Other special-status species that occur adjacent to the
project study area or have the potential to occur within the project study area, based on the
presence of suitable habitat and soils, are listed in Table 2. This list is confined primarily to
species listed by the state and federal govemment as threatened or endangered, species proposed
for state and/or federal listing or candidates, species found on Lists lA, IB, or 2 of the CNPS
Inventory of Rare and Endangered Plants of California (CNPS 2001).
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Table 2
Special-Status Plant Species Observed or Potentially Occurring at the Project Study Area
.Scientific
Acanthomintha
ilicifolia
:CQigmpn Name
San Diego thorn-
mint
Status
FederaV
State
FT/SE
CNPS
List
1B.1
HMP
Covered?
Yes
Primary Habitat
_ BipQiniBgl
Vertisol clay soils of mesas and valleys within
chaparral, coastal scrub, grassland and
vernal pools/10 to 935 meters/annual herb
Not observed during the field survey. Clay soils and
coastal scrub may provide suitable habitat.
Adolphia
californica
Califomia
adolphia
None/
None 2.2 No
From sandy to clay soils within grassland,
coastal sage scrub, and chaparral/15 to 300
meters/shrub
This spedes was observed on site during field
survey in several different areas on both the La
Golondrina and El Fuerte pipeline areas.
Arctostaphylos
glandulosa ssp.
crassifolia
Del Mar
manzanita FE/None 1B.1 Yes
Sandy coastal mesas and ocean bluffs in
chaparral, closed-cone coniferous forest/0 to
365 meters/shub
Not observed during the field survey. The habitat
on site is not suitable for this species.
Baccharis
vanessae
Encinitas
baccharis FT/SE 1B.1 Yes Chaparral; on sandstone soils in steep, open,
rocky areas/60 to 720 meters/shrub
Not observed during the field survey. There are no
steep rocky areas on site and this species is not
expected to occur.
Brodiaea filifolia thread-leaved
Brodiaea FT/SE 1B.1 Yes
Clay substrate openings in chaparral, sage
scrub, and grasslands/perennial herb
(geophyte)/March-June
Not observed during the field survey. Clay soils and
chapan'al and coastal sage scnjb species may
pro\nde suitable habitat for this species.
Ceanothus
verucosus
wart-stemmed
ceanothus
None/
None 2.2 Yes In chapan'al from 1 to 380 meters/shrub.
Not observed during the field survey. Conspicuous
perennial species, would have been observed
therefore no potential to occur on site.
Chaenactis
glabriuscula
var. orcuttiana
Orcutt's
pincushion
None/
None 1B.1 No Sandy sites in coastal bluff scrub and coastal
dunes/annual herb
Not observed during the field survey. This species
is not expected to occur on site due to lack of
suitable habitat (coastal scrub/dunes)
Chorizanthe
orcuttiana
Orcutrs
spineflower FE/SE 1B.1 Yes
Sandy sites and opening, sometimes in
transitional areas in coastal scrub, chaparral,
and in closed-cone coniferous forest/annual
herb
Not observed during the field survey. This species
is not expected to occur on site due to lack of
suitable habitat (sandy soils).
These species are proposed for coverage under the Carlsbad Subarea Plan; are proposed contigent on other MHCP Subarea Plans being permitted; or are
proposed contigent on funding for management of conserved areas (City of Carlsbad 2004).
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Table 2 (Continued)
Scientific
Chorizanthe
polygonoides
var. longispina
CommofiName
long-spined
spineflower
Status
Fedaial/
State
None/
None
CHPS
List
1B.2
HMP
Covered^
No
J^imary Habitat
„ Btoqmlnfl.i'gM
Gabbroic clay soils from 3 to 1450 meters. In
chaparral, coastal scrub, meadows and
valley and foothill grasslands/annual herb
Not observed during the filed survey. This species
is not expected to occur on site due to lack of
suitable habitat (gabbronic clay).
Comarostaphyli
s diversifolia
ssp. diversifolia
Summer holly None/
None 1B.2 Yes
Often in mixed chaparral in Califomia from 30
to 550 meters; sometimes post-burn
chaparral/shrub
Not observed during the field sun/ey. Conspicuous
perennial spedes, would have been observed
therefore no potential to occur on site.
Coreopsis
maritima Sea dahlia None/
None 2.2 No
Occurs in a variety of soil types; found in
coastal scrub and coastal bluff scrub from 5
to 150 meters/perennial herb
Not observed during the field survey. This species
is not expected to occur on site due to lack of
suitable habitat (immediate coastal habitats).
Corethrogyne
filaginifolia var.
linifolia
Del Mar Mesa
sand aster
None/
None 1B.1 Yes
Coastal scrub and chapan'al communities on
maritime sediments and conglomerates from
30 to 150 meters/perennial herb
Not observed during the field survey. Other variety
detected at El Fuerte project area therefore low
likelihood that this variety occurs on site.
Eryngium
aristulatum var.
parishii
San Diego
button-celery FE/SE 1B.1 Yes
Vernal pools, coastal scrub, valley and
foothill grasslands from 15 to 620
meters/annual or perennial herb
Not observed during the field survey. This species
is not expected to occur on site due to lack of
suitable habitat (bemal pools).
Erysimum
ammophilum
Sand-loving
wallflower
None/
None 1B.2 No
Chaparral (maritime), coastal dunes and
coastal scnjbs in sandy openings; 0 to 130
meters/perennial herb
Not observed during the field survey. This species
is not expected to occur on site due to lack of
suitable habitat (sandy soils).
Hazardia
orcuttii Orcutt's hazardia None/
None 1B.1 Yes Clay opening or on grassy edges of
chaparral and coastal scnjb/shnjb
Not observed during the field survey. Clay soils and
chapan-al and coastal scrub species may provide
suitable habitat for this species on site.
Heterotheca
sessiliflora ssp.
sessiliflora
beach
goldenaster
None/
None 1B.1 No
Sandy sites in coastal dunes, coastal scnjb,
and chaparral (coastal) from 1 to 1224
meters/perennial heriD
Not observed during the field survey. This spedes
is not expected to occur on site due to lack of
suitable habitat (sandy soils).
Isocoma
menziesii var.
decumbens
decumbent
goldenbush
None/
None 1B.2 No Sandy soils, often in disturbed sites and
coastal scrub; 10 to 910 meters/shmb
Not observed during the field survey. This spedes
is not expected to occur on site due to lack of
suitable habitat (sandy soils).
Iva hayesiana San Diego
marsh-elder
None/
None 2.2 Yes Marshes, swamps, playas, and riverwashes;
10 to 500 meters/perennial herb
Not observed during the field survey. There is very
limited riparian habitat on site, and this spedes is
not expected to occur.
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Scientific
-teg.. •
Lasthenia
glabrata ssp.
coulteri
Table 2 (Continued)
Commpn Name
Coulter's
goldfields
Status
Federal/
State
None/
None
CNPS
List
1B.1
HMP
Covered
No
Primacy >t^!>it^t^(!^i
Usually found on alkali soils In playas, sinks,
grasslands; also found in coastal salt
marshes, valley and foothill grasslands,
vernal pools; 1 to 1400 meters/annual hert)
Not obsen/ed during the field survey. There are no
alkali soils on site, and this species is not expected
to occur.
Lotus
nuttallianus Nuttall's lotus None/
None 1B.1 No Sandy dunes, coastal scmb from 0 to 10
meters/annual herb
Not observed during the field survey. This spedes
is not expected to occur on site due to lack of
suitable habitat (sandy soils).
Myosums
minimus ssp.
apus
little mousetail None/
None 3.1 Yes Alkali soils; often in vernal pools/20 to 640
meters/annual herb
Not observed during the field survey. There are no
alkali soils on site, and this spedes is not expected
to occur.
Navarretia
fossalis
Moran's
navarretia FT/None 1B.1 Yes Vernal pools, chenopod scrub, marshes and
swamps, playas/annual hert)
Not observed during the field survey. There is no
suitable habitat for this spedes on site.
Nemacaulis
denudata var
denudata
coast woolly-
heads
None/
None 1B.2 No Coastal dunes/annual herb Not observed during the field survey. This spedes
is not expected to occur on site.
Orcuttia
californica
California Orcutt
grass FE/SE 1B.1 Yes Vernal pools; annual herb; 15 to 660
meters/annual herb
Not observed during the field survey. This spedes
is not expected to occur on site due to lack of
suitable habitat (vernal pools),
Quercus
dumosa
Nuttall's scrub
oak
None/
None 1B.1 Yes
Sandy soils or sometimes on day soils in
closed-cone coniferous forest, chaparral,
coastal scrub. More common scrub oak is
now Q. bert)eridifolia/perennial shrub
Not observed during the field survey. Conspicuous
perennial spedes, would have been obsen/ed
therefore no potential to occur on site.
Suaeda esteroa estuary seablite None/
None 1B.2 No Swamps and coastal salt marshes in clay,
silt, and sand substrates/perennial herb
Not observed during the field survey. There is not
suitable swamps of coastal salt marsh on site.
Legend:
FE:
FT:
SE:
Federally-listed as endangered
Federally-listed as threatened
State-listed as endangered
CNPS List lA: Plants presumed extincl in Califomia
CNPS List 1B: Plants rare, ttireatened, or endangered in Califomia and elsewhere
CNPS List 2: Plants rare, threatened, or endangered in CA but more common elsewhere
CNPS List 3: Plants about which we need more information - a review list
CNPS List 4: Plants of limited distribution - a watc^ list
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The special-status species that was observed during the field survey is discussed below.
3.3.1.1 California Adolphia
One special-status plant species was observed during the field survey: the Califomia aldolphia
(Adolphia californica), a CNPS List 2.1 species. This species was observed in both the La
Golondrina and El Fuerte stirvey areas. In La Golondrina survey area, two points were mapped
within coastal sage scrub with a total of approximately 8 plants. In El Fuerte survey area, a
polygon of approximately 50 plants species were mapped within non-native grass adjacent to
coastal sage scrub.
3.3.2 Special-status Wildlife Species
One special-status wildlife species was observed during the field survey: the coastal Califomia
gnatcatcher (Polioptila californica californica), a federally threatened species. One individual
was heard calling directly adjacent to the study area off of El fuerte.
The observed and other special-status species that have the potential to occur within the site are
listed in Table 3. The species' potential to occur is based on the presence of suitable habitat and
distribution, as well as their occurrence based on the CNDDB search. This list includes species
listed by the state and federal govemment as threatened or endangered, those species proposed
for state and/or federal listing or candidates; and those wildlife species generally considered to be
rare or declining, state species of concem, state regulated species, other federal status species.
3.3.2.1 California Gnatcatcher
One special-status wildlife species was observed during the field survey: the California
gnatcatcher (Polioptila californica californica), a federally threatened species. This species was
observed calling in coastal sage scmb adjacent to the northwest portion of the El Fuerte site.
Coastal sage scmb is abundant within both of the survey areas and is suitable to support this
species.
3.3.3 Special-Status Vegetation Communities and Land Covers
All native vegetation communities found in the project study area considered special-status imder
the HMP (City of Carlsbad 2004). This includes coastal sage scmb, southem mixed chaparral,
southem willow scmb, and coastal and valley freshwater marsh. In addition, southem willow
scmb and coastal and valley freshwater marsh are considered sensitive by Holland (1986) and
CDFG (2003). Also, they are both under the jurisdiction of a state or federal agency. Southem
willow scmb is mapped as CDFG jurisdiction; and coastal and valley freshwater marsh is
mapped as ACOE, CDFG, and RWQCB jurisdiction. These vegetation communities and land
covers have the potential to support a variety of special-status wildlife species.
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Table 3
Special-Status Wildlife Species Observed or Potentially Occurring on the Project Study Area
Status
^ederftl/State/', HMP
ScisntlQc Name Common Name Other! Xoyered*
Invertebrates
Brar)ct}inecta
sandiegonensis
San Diego fairy
shrimp
FE/None Yes Small, shallow vernal pools, occasionally ditches and
road ruts
Not expected to occur based on
lack of suitable habitat.
Cicindela senilis frosti Senile tiger beetle None/None No Inhabits marine shoreline, dark-colored mud in the
lower zone and dried salt pans in the upper zone.
Not expected to occur based on
lack of suitable habitat.
Danaus plexippus Monarch butterfly None/"* No Overwinters in eucalyptus groves Moderate potential to ocojr; low
potential to overwinter in
eucalyptus on site.
Euphyes vestries
harbisoni
Harbison's dun
sitipper
None/None Yes Wetlands, riparian, oak woodlands, and chaparral
habitats supporting host plant Carex spissa
Not expected to occur due to
absence of host plant on site.
Panoquina errans Salt marsh skipper None/None Yes Salt marsh from Los Angeles to Baja Califomia Not expected to occur based on
lack of suitable habitat.
Streptocephalus woottoni Riverside fairy
shrimp
FE/None Yes Deep, long-lived vernal pools or seasonal ponds, stock
ponds; wam water pools with low to moderate dissolved
solids
No potential to occur due to
absence of vernal pools on site.
Tryonia imitator Mimic tryonia
(=California
brackishwater snail)
None/None No Inhabits coastal lagoons, estuaries and salt marshes,
from Sonoma County south to San Diego County.
Found only in permanently submerged sediment types;
able to withstand a wide range of salinities.
Not expected to occur on site
based on lack of suitable habitat.
Reptiles
Aspidoscelis hyperythra Orange-throated
whiptail
None/ CSC Yes Prefers washes and other sandy areas with patches of
baish and rocks. Inhabits low-elevation coastal scrub,
chaparral, and valley-foothill hardwood habitats.
Moderate potential to occur on
site.
^ These species are proposed for coverage under the Carlsbad Subarea Plan; or are proposed contigent on funding for management of conserved areas (City of
Carlsbad 2004).
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Table 3 (Continued)
Phrynosoma coronatum
Common Name
Coast (San Diego)
horned lizard
. Status
Pftderat/Stiite/
Other*
None/CSC
HMP
Covered*
No Coastal sage scrub, annual grassland, chapan'al, oak
and riparian woodland, coniferous forest
Moderate potential to occur on
site.
Birds
Accipiter cooperii Cooper's hawk NoneAVL Yes Riparian and oak woodlands, montane canyons Moderate potential to occur in
eucalyptus woodland on site.
Aimophila ruficeps
canescens
Southern California
rufous-crowned
span"ow
None/CSC Yes Grass-covered hillsides, coastal sage scrub, chapan'al
with boulders and outcrops
High potential to occur based on
suitat}le coastal sage scmb
present.
Campylorhynchus
brunneicapillus
sandiegensis
Coastal {San Diego)
cactus wren
BCC/CSC No Southem cactus scmb, maritime succulent scrub,
cactus thickets in coastal sage scmb
Low potential to occur based on
lack of stands of cactus.
Charadrius alexandrinus
nivosus
Western snowy
plover
BCCUSBC/
CSC
Yes Needs sandy soil, gravelly or friable soils for nesting.
Inhabits sandy beaches, salt ponds levees and shores
of large alkali lakes.
Not expected to occur based on
lack of suitable habitat.
Empidonax traillii extimus Southwestern willow
flycatcher
FE/SE Yes Riparian woodlands along streams and rivers with
mature, dense stands of willows or alders; may nest in
thickets dominated by tamarisk.
No potential to occur. The
southem willow scnjb on site is
too small (0.03 acre) to provide
nesting habitat for this species.
Paico peregrinus anatum American peregrine
falcon
Delisted/SE Yes Nests on cliffs, buildings, bridges; forages in wetlands,
riparian, meadows, croplands, especially where
waterfowl are present.
Low potential to occur. No
suitable nesting sites within study
area.
Icteria virens Yellow-breasted chat None/CSC Yes Dense, relatively wide riparian woodlands and tiiickets
of willows, vine tangles and dense bmsh,
Low potential to occur Due to the
small (0.03 acre), isolated nature
of the riparian scmb on site.
Laterallus jamaicensis
coturniculus
California black rail BCCUSBC/
ST,FP
No Inhabits freshwater marshes, wet meadows and shallow
margins of saltwater marshes bordering larger bays.
Needs water depths of 1 inch and dense vegetation for
nesting habitat.
Not expected to occur based on
lack of suitable habitat.
Pandion haliaetus Osprey None/WL Yes Large waters (lakes, reservoirs, rivers) supporting fish;
usually near forest habitats, but widely observed along
the coast
Not expected to occur Due to lack
of large water bodies in study
area.
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Table 3 (Continued)
i V Scienti^c Name Common Name
Status .
Federal/State/
Other*
HMP
Passerct;/t;s
sandwichensis beldingi
Belding's savannah
sparrow
None/SE Yes Inhabits coastal salt marshes and nests along margins
of tidal flats.
Low potential to occur based on
lack of suitable habitat
Passerculus
sandwichensis rostratus
Large-billed
savannah sparrow
None/CSC Yes Saltmarsh, pickleweed Not expected to occur based on
lack of suitable habitat
Pelecanus occidentalis
californicus
California brown
pelican
SE/FE Yes Open sea, large water bodies, coastal bays and harbors Not expected to occur. No large
bodies of water on site.
Plegadis chihi White-faced ibis None/WL Yes Nests in dense emergent wetiands and marshes; winter
foraging in shallow lacustrine waters, muddy ground of
wet meadows, marshes, ponds, lakes, rivers, flooded
fields and estuaries
Not expected to occur based on
lack of suitable habitat
Freshwater marsh on site is too
small (0.02 acre) and isolated to
support tills species.
Polioptila californica
californica
Coastal Califomia
gnatcatcher
FT,
USBC/CSC
Yes Coastal sage scrub, coastal sage scmb-chaparral mix,
coastal sage scrub-grassland ecotone, riparian in late
summer
One individual was heard calling
directiy adjacent to tiie study area
off of El fuerte.
Rallus longirostris levipes Light-footed clapper
rail
FE,USBC/SE, FP Yes Found in salt marshes where cordgrass and pickleweed
are the dominant vegetation.
No potential to occur based on
lack of suitable habitat on site.
Freshwater marsh on site is too
small (0.02 acre) and isolated to
support tills species.
Sterna elegans Elegant tem BCC/WL Yes Coastal waters, estuaries, large bays and harbor,
mudflats
Not expected to occur due to lack
of large water bodies on site.
Sternula antillarum brownl Califomia least tern FE,USBC/SE, FP Yes Nests along the coast; colonial breeder on bare or
sparsely vegetated, flat substrates such as sand
beaches, alkali flats, land fills or paved areas.
Low potential to occur based on
lack of suitable habitat on site
Vireo bellii pusillus
(nesting)
Least Bell's vireo FE, BCC USBC/
SE
Yes Nests in southern willow scmb witii dense cover within
1 -2 meters of the ground; habitat includes willows,
cottonwoods, baccharis, wild blackben^ or mesquite on
desert areas
No potential to occur. The
soutiiem willow scmb on site is
too small (0.03 acre) to provide
nesting habitat for this species.
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Scientific Name Common Name
Status
Federal/State/
Other*
Table 3 (Continued)
HMP
Covered*
Mammals
Chaetodipus californicus
femoralis
Dulzura pocket
mouse
None/ CSC No Variety of habitats including coastal scnjb, chaparral
and grassland edges in San Diego County.
High potential to occur due to
presence of suitable habitat and
connectivity to off-site native
habitat.
Chaetodipus fallax fallax Northwestern San
Diego pocket mouse
None/ CSC No Sandy, herbaceous areas, usually in association with
rocks or coarse gravel. Found In coastal scmb,
chaparral, and grasslands In westem San Diego
County.
High potential to occur due to
presence of suitable habitat and
connectivity to off-site native
habitat.
Choeronycteris mexicana Mexican long-
tongued bat
None/CSC/WBWG No Desert and montane riparian, desert succulent scrub, desert
scrub, and pinyon-juniper woodland. Roosts in caves, mines,
and buildings.
Not expected to occur based on lack
of suitable habitat.
Neotoma lepida
intermedia
San Diego desert
woodrat
None/CSC No Coastal sage scmb, chapanral, pinyon-juniper woodland
with rock outcrops, cactus thickets, dense undergrowth
Woodrat middens were observed
on site during field surveys.
Nyctinomops
femomsaccus
Pocketed free-tailed
bat
None/CSC No Rocky desert areas wiUi high cliffs or rock outcrops Not expected to occur based on
lack of suitable habitat.
Perognathus
longimembris pacificus
Pacific pocket mouse FE/CSC No Prefers soils of fine alluvial sands near tiie ocean.
Inhabits the narrow coastal plains.
Not expected to occur; very
rare; and site outside of known
population areas for this species.
Federal Designations: State Designations:
BCC: Fish and Wildlife Sen/ice: Birds of Consen/ation Concern CSC: California Special Concem Species
FE: Federaiiy-listed as endangered FP: State Fully Protected
FS; U.S. Forest Service: Sensitive SE: tate-listed as endangered
FT: Federally-listed as threatened ST: State-listed as threatened
USBC United States Bird Conservation Watch List WL: CDFG Watch List species
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4.0 IMPACTS
The proposed pipelines will be completed using a trenchless technology through HDD. This
method will consist of fluid jetting techniques, with steering for horizontal and vertical drilling
possible. In order to perform the HDD, a drill rig is set up above groimd, and a small diameter
drill head is extended along a pilot bore path with a hollow drill string pipe pushing it forward.
The pilot bore is extended to the through to the exit side, and will be sufficiently deep to prevent
inadvertent returns (frac outs).
4.1 Permanent Impacts
4.1.1 La Golondrina
The proposed project will result in the permanent removal of the La Golondrina Lift Station. The
station is located off of La Golondrina Street in a paved access area. No impacts to vegetation are
anticipated from the removal of the lift station. The proposed pipeline extension will be
constructed underground, and will not result in any permanent removal or alteration of
vegetation communities. A new sewer manhole base will be constructed around the existing
gravity sewer pipeline. This will occur in a developed area and no permanent impacts to
vegetation are anticipated. No permanent direct or indirect impacts to vegetation communities,
special-status species, or wildlife movement corridors are anticipated as a result of this project.
4.1.2 El Fuerte street
The proposed project will result in the permanent removal of the La Costa Meadows 3 Lift
Station. The proposed pipeline extension will be constructed underground, and will not result in
any permanent removal or alteration of vegetation communities. A new manhole will be
constructed off of El fiierte that will be connected to the HDD pipeline. This will occur in a
developed area and no permanent impacts to vegetation are anticipated. No permanent direct or
indirect impacts to vegetation communities, special-status species, or wildlife movement
corridors are anticipated as a resuh of this project.
4.2 Temporary Impacts
Some potholes may be required in order to determine additional data for the depth and position
of water, sewer, or reclaimed water and dry utilities. These potholes will be located in the street
and will not disturb any vegetation communities.
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4.2.1 La Golondrina
4. Z1.1 Direct Impacts
The construction area will consist of the staging area, drill rig, and an open-trench area. For the
La Golondrina pipeline, the open-trench area will be required for the installation of the sewer
pipe between the entry of the HDD and the diversion manhole to the existing lift station.
Because the pipeline will be completed using the HDD method, no dkect removal of vegetation
commimities are anticipated. There may be temporary direct impacts to vegetation communities
from the open-trench area in the study area. The trench area will be primarily located within the
paved access area in the south-central portion of the site, but it will result in impacts to a total of
less than 0.01 acre of omamental. The staging area and drill rig will also be located primarily
within the paved access area, but may result in temporary impacts to 0.009 acre of omamental.
There are no temporary direct impacts to the coastal and valley freshwater marsh or southern
willow scmb.
Temporary impacts to vegetation communities and land covers are minimal and will not
significantly impact sensitive vegetation communities, special-status plant or wildlife species, or
interfere with wildlife movement corridors.
4.2. L 2 Indirect Impacts
Temporary indirect impacts as a result of the pipeline may include noise and ground vibration
from the equipment used to performed the drilling and related constmction activities. These
indirect impacts may result in disturbance to native wildlife species, such as the coastal
Califomia gnatcatcher or nesting raptors. The observed or potentially occurring special-status
species are listed above in Table 3. If constmction activities occur within the nesting season,
impacts to nesting birds, including from noise and ground vibration will be significant, absent
mitigation.
In addition, dust and nm-off from the constmction activities may impact special-status plant
species (listed in Table 2) adjacent to the constmction area or the coastal and valley freshwater
marsh that is directly adjacent to the proposed open-trench area. If these impacts occurred, they
would be significant, absent mitigation.
There may be indirect impacts to wildlife movement since this area is within the Core 6 area;
however, the short-term nature of this project is not expected to result in significant impacts to
wildlife movement corridors, even if work is conducted during the nesting season.
5444.02
DUDEK 31 SeptemtKr 2008
Biological Resources Technical Report
La Golondrina and El Fuerte Street HDD Sewer Extensions
4.2.2 El Fuerte Street
4.2.2.1 Direct Impacts
For the El Fuerte pipeline, the open-trench area will be required for connecting the terminus of
the HDD pipeline installation to the manhole in El fuerte.
The impacts in the El Fuerte study area are similar to La Golondrina. There may be temporary
direct impacts to vegetation communities from the open-trench area in the study area. The trench
area will be primarily located within a paved access area off of El fiierte and Chorlito Street, but
it will result in impacts to a total of less than 0.01 acre of omamental. The staging area and drill
rig will also be located primarily within the paved access area, but will result in impacts to less
than 0.01 acre of omamental. These temporary impacts to vegetation commimities and land
covers are minimal and will not significantly impact special-status vegetation communities or
plant or wildlife species.
4.2.2.2 Indirect Impacts
The impacts in the El Fuerte study area are similar to those described for La Golondrina above.
In summary, if constmction activities occur within the nesting season, impacts to nesting birds,
including from noise and ground vibration will be significant, absent mitigation. Also, dust and
mn-off from the constmction activities may significantly impact special-status plant species
and/or coastal and valley freshwater marsh adjacent to the proposed open-trench areas, absent
mitigation.
The El fiierte pipeline is located within the Linkage D area of the HMP and may temporarily
affect wildlife movement; however, the short-term nature of this project is not expected to result
in significant impacts to wildlife movement corridors even if work is conducted during the
nesting season.
5.0 RECOMMENDED AVOIDANCE AND MINIMIZATION
MEASURES
5.1 HMP Compliance
This project area is located within the Hardline Conservation Areas of the HMP area for the City
(City of Carlsbad 2004). In order to comply with the guidelines of the HMP, impacts to sensitive
vegetation communities (southem willow scmb and coastal and valley freshwater marsh) must
be avoided or minimized. Coastal sage scmb provides habitat for the coastal Califomia
gnatcatcher, a species covered under the the MHCP, and impacts to coastal sage scmb must be
avoided or minimized.
5444.02
DUDEK 32 September 2008
Biological Resources Technical Report
La Golondrina and El Fuerte Street HDD Sewer Extensions
The HMP guidelines state that impacts to coastal sage scmb and chaparral must result in no net
loss. For impacts to southem willow scmb and coastal and valley fi^shwater marsh, there must
be no net loss. No permanent or temporary impacts to coastal sage scmb, chaparral, southern
willow scmb, or coastal and valley freshwater marsh are anticipated as a result of the proposed
pipeline extensions.
As applicable, this project should follow the mitigation measures outUned in Appendix A-
Standard Impact Mitigation Measures of the Guidelines for Biological Studies (Technology
Associates 2008).
BIO-1 If the constmction activities occur during the nesting bird season (February 15 through
September 15), the following measures must be taken (per Secfion 8.1.3-Species-
Specific Mitigation from the Guidelines for Biological Studies [Technology Associates
2008]):
m • A qualified biologist will conduct a focused species gnatcatcher survey in appropriate
habitat within and surrounding the project area. The surveys will consist of three
visits, one week apart; the last of these will be conducted no more than three days
* prior to constmction.
* • Surveys will also be conducted by a qualified biologist in appropriate habitat for
m nesting raptors and migratory birds (including, but not limited to the least Bell's
vireo) within three days of constmction.
• The USFWS will be notified immediately of any federally listed species that are
located during pre-conslmction surveys.
• If nests of sensitive species, migratory birds, or raptors are located, they will be
* fenced with a protective buffer of at least 300 feet from active nests. All constmction
1^ activity will be prohibited within this area.
* • During the breeding season, constmction noise will be measured regularly to maintain
^ a threshold at or below 60dBA hourly Leq within 300 feet of breeding habitat
occupied by listed species. If noise levels supersede the threshold, the constmction
array will be changed or noise attenuation measures will be implemented.
^ In order to comply with the HMP guidelines, there must be a no net loss of native vegetation
communities within the Hardline Conservation Areas. If these avoidance, minimization, and
^ restoration (if needed) measures are implemented, this project will not result in significant
m impacts per the HMP.
5444.02
DUDEK 33 September 2Q0B
Biological Resources Technical Report
La Golondrina and El Fuerte Street HDD Sewer Extensions
5.2 Recommended Minimization and Mitigation
In order to avoid impacts to special-status species or sensitive vegetation commimities, the
following measures are suggested.
BIO-2 A biological monitor shall be present during the constmction process in order to review
the limits of work and Best Management Practices (BMPs) prior to commencement of
constmction and to periodically check the compliance of enviromnental regulations.
BIO-3 BMPs should be applied that result in the open-trench area, staging area, and drill rig to
specifically avoid indirect impacts to the coastal and valley freshwater marsh. These
should also apply to minimizing or avoiding disturbance to coastal sage scmb, chaparral,
southem willow scmb, and the mapped locations of California adolphia (Adolphia
californica). Such BMPs may include installation of silt fencing and dust control
measures.
BIO-4 In order to avoid impacts to vegetation communities from the possibility of a frac out, the
project contractor will submit an Emergency Frac Out Containment Plan, which will
outline the plan of action in the case that frac out occurs. The plan shall include a
requirement to immediately notify the biological monitor and for the monitor to conduct
an assessment of biological impacts.
With implementation of these avoidance and minimization measures, the project will not result
in significant impacts to any biological resources.
6.0 ACKNOWLEDGMENTS
CaUie Ford and Britney Strittmater prepared this report, with review by Vipul Joshi. Lesley
Terry provided graphics and GIS mapping analyses. Mark Lathram provided word processing.
7.0 DOCUMENTS CITED
ACOE (U.S. Army Corps of Engineers). 2006. Interim Regional Supplement to the Corps of
Engineers Wetland Delineation Manual: Arid West Region. December 2006.
CDFG (Califomia Department of Fish and Game), CNDDB (Natural Diversity Data Base). 2003.
The Vegetation Classification and Mapping Program List of California Terrestrial
Natural Communities Recognized by The Califomia Natural Diversity Database.
September.
5444.02
DUDEK 34 September 2008
Biological Resources Technical Report
La Golondrina and El Fuerte Street HDD Sewer Extensions
CDFG, CNDDB. 2004. Rarefmd. Version 3.0.3. Rarefind survey results for the Encinitas
Quadrangle. Sacramento, California. November 3.
Califomia Native Plant Society (CNPS). Online Inventory. 2006. http://cnps.web.aplus.net/cgi-
bin/inv/inventory.cgi. Accessed August 2008.
City of Carlsbad. 2004. Habitat Management Plan for Natural Communities in the City of
Carlsbad. December 1999, as Amended. Final Approval November 2004.
Environmental Laboratory. 1987. U.S. Army Corps of Engineers wetlands delineation manual.
(Technical Report Y-87-1.) Vicksburg, MS: U.S. Army Waterways Experience Station.
EPA (Environmental Protection Agency) and ACOE (U.S. Army Corps of Engineers). 2007.
Clean Water Act Jurisdiction following the Supreme Court's Decision in Rapanos v.
United States and Campbell v. United States. June 5, 2007.
Hickman, J.C. 1993. The Jepson Manual: Higher plants of Califomia. University of California
Press, Berkeley. 1400 pp.
Holland, R.F. 1986. Preliminary Descriptions of the Terrestrial Natural Communities of
Califomia. Non-game-Heritage Program, Cahfomia Department of Fish and Game.
Munz, P. A. 1974. A Flora of Califomia. University of Califomia Press, Berkeley. 1086 pp.
Sawyer, J.O. and T. Keeler-Wolf 1995. A Manual of Califomia Vegetation. Califomia Native
Plant Society. 471 pp.
Technology Associates. 2008. Guidelines for Biological Studies. Prepared for City of Carlsbad
Planning Department. Prepared by Technology Associates: Carlsbad, Califomia. May 29.
U.S. Department of Agriculture (USDA). 1969. Soil Survey, Antelope Valley Area, California.
5444.02
DUDEK 35 September 2008
Biological Resources Technical Report
La Golondrina and El Fuerte Street HDD Sewer Extensions
INTENTIONALLY LEFT BLANK
5444.02
DUDEK 36 September 2008
m
M
m
APPENDIX A
Vascular Plant Species Observed
INTENTIONALLY LEFT BLANK
APPENDIX A
Vascular Plant Species
CONIFERS
PEVACEAE - FINE FAMILY
Pinus sp. - pine
ANGIOSPERMS (DICOTS)
AIZOACEAE - FIG-MARIGOLD FAMILY
* Mesembryanthemum sp. - iceplant
ANACARDIACEAE - SUMAC FAMILY
Malosma laurina - laurel sumac
Rhus integrifolia - lemonadeberry
Toxicodendron diversilobum - westem poison oak
ASTERACEAE - SUNFLOWER FAMILY
Artemisia californica - Califomia sagebmsh
Baccharis pilularis - chaparral broom, coyote bmsh
Baccharis salicifolia - mule fat, seep-willow, water-wally
* Centaurea melitensis - tocalote
Conyza canadensis - horseweed
Corethrogyne filaginifolia var. californica - Califonia sand aster
Deinandra [=Hemizonia]fasciculata - fascicled tarweed
Encelia farinosa - brittlebush, incienso
Filago californica - Califomia filago
Gutierrezia californica - Califomia matchweed
Isocoma menziesii ssp. menziesii -spreading goldenbush
* Lactuca serriola - prickly lettuce
Pluchea odorata - salt marsh fleabane
* Sonchus asper - prickly sow thistle
Stephanomeria virgata ssp. virgata - virgate wreath-plant
* Taraxacum officinale - common dandelion
BRASSICACEAE - MUSTARD FAMILY
* Hirschfeldia incana - short-pod mustard
5444-02
DUDEK A-1 September 2008
APPENDIX A
Vascular Plant Species
CACTACEAE - CACTUS FAMILY
Opuntia littoralis - coastal prickly-pear
ERICACEAE - HEATH FAMILY
Xylococcus bicolor - mission manzanita
FABACEAE - PEA FAMILY
* Acacia spp. - acacia
Lotus scoparius var. scoparius - deerweed
LAMIACEAE - MINT FAMILY
Salvia mellifera - black sage
MYRTACEAE - MYRTLE FAMILY
* Eucalyptus sp. - eucalyptus
POLYGONACEAE - BUCKWHEAT FAMILY
Eriogonum fasciculatum vai.foliolosum - Califomia buckwheat
RHAMNACEAE - BUCKTHORN FAMILY
Adolphia californica - spineshmb, Califomia adolphia
Rhamnus crocea - spiny redberry
ROSACEAE - ROSE FAMILY
Adenostoma fasciculatum - chamise
Heteromeles arbutifolia - toyon, Christmas berry
SALICACEAE - WILLOW FAMILY
Salix lasiolepis - arroyo willow
SOLANACEAE - NIGHTSHADE FAMILY
* Nicotiana glauca - tree tobacco
TAMARICACEAE - TAMARISK FAMILY
* Tamarix sp. - tamarisk
5444-02
DUDEK A-2 September 2008
APPENDIX A
Vascular Plant Species
ANGIOSPERMAE (MONOCOTYLEDONES)
ARECACEAE - PALM FAMILY
Washingtonia robusta - Mexican fan palm
IRIDACEAE - IRIS FAMILY
Sisyrinchium bellum - blue-eyed-grass
POACEAE - GRASS FAMILY
* Arundo donax - giant reed
* Avena barbata - slender wild oat
* Avena fatua - wild oat
* Bromus diandrus - ripgut grass
* Bromus hordeaceus - soft chess
* Bromus madritensis ssp. rubens - foxtail chess
* Bromus tectorum - cheat grass, downy brome
* Cortaderia selloana - pampas grass
* Gastridium ventricosum - nit grass
* Polypogon monspeliensis - annual beard grass
Nassella pulchra - purple needlegrass
TYPHACEAE - CATTAIL FAMILY
Typha angustifolia - narrow-leaved cattail
* signifies introduced (non-native) species
5444-02
DUDEK A-3 September 2008
APPENDIX A
Vascular Plant Species
INTENTIONALLY LEFT BLANK
DUDEK A-4
5444-02
' September 2008
APPENDIX B
Wildlife Species Observed
INTENTIONALLY LEFT BLANK
APPENDIX B
Wildlife Species
WILDLIFE SPECIES -VERTEBRATES
AMPHIBIANS
HYLIDAE - TREEFROGS
Hyla regilla - Pacific treefrog
REPTILES
IGUANIDAE - IGUANID LIZARDS
Sceloporus occidentalis - westem fence lizard
BIRDS
ACCIPITRIDAE - HAWKS
Buteo jamaicensis - red-tailed hawk
FALCONIDAE - FALCONS
Falco sparverius - American kestrel
PHASIANIDAE - PHEASANTS & QUAILS
Callipepla californica - California quail
LARIDAE - GULLS & TERNS
Larus sp. - gull
COLUMBIDAE - PIGEONS & DOVES
Zenaida macroura - mouming dove
CUCULIDAE - CUCKOOS & ROADRUNNERS
Coccyzus americanus - yellow-billed cuckoo
Geococcyx califomianus - greater roadnmner
TROCHILIDAE - HUMMINGBIRDS
Calypte anna - Aima's hummingbird
Calypte costae - Costa's hummingbird
5444-02
DUDEK B-1 September 2008
APPENDIX B
Wildlife Species
m
TYRANNIDAE - TYRANT FLYCATCHERS
Sayornis nigricans - black phoebe
HIRUNDINIDAE - SWALLOWS
Petrochelidon pyrrhonota - cliff swallow
CORVIDAE - JAYS & CROWS
Aphelocoma californica - westem scmb-jay
Corvus brachyrhynchos - American crow
Corvus corax - common raven
AEGITHALIDAE - BUSHTITS
Psaltriparus minimus - bushtit
TROGLODYTIDAE - WRENS
« Thryomanes bewickii - Bewick's wren
SYLVIIDAE - GNATCATCHERS
Polioptila californica - Califomia gnatcatcher
It
TIMALIIDAE - LAUGHINGTHRUSH AND WRENTIT
^ Chamaea fasciata - wrentit
MIMIDAE - THRASHERS
* Mimus polyglottos - northem mockingbird
EMBERIZIDAE - BUNTINGS & SPARROWS
m
^ Melospiza melodia - song sparrow
Pipilo crissalis - California towhee
* Pipilo maculatus - spotted towhee
ICTERIDAE - BLACKBIRDS & ORIOLES
Icterus bullockii - Bullock's oriole
Icterus cucullatus - hooded oriole
5444-02
DUDEK B-2 September 2008
APPENDIX B
Wildlife species
FRINGILLIDAE - FINCHES
Carpodacus mexicanus - house finch
Carduelis psaltria - lesser goldfinch
PASSERIDAE - OLD WORLD SPARROWS
* Passer domesticus - house sparrow
MAMMALS
MURIDAE-RATS& MICE
Neotoma lepida - desert woodrat (midden)
WILDLIFE SPECIES - INVERTEBRATES
BUTTERFLIES AND MOTHS
PAPILIONIDAE - SWALLOWTAILS
Papilio rutulus - tiger swallowtail
PIERIDAE - WHITES AND SULFURS
Pieris rapae - cabbage white butterfly
* signifies introduced (non-native) species
5444-02
DUDEK B-3 September 2008
APPENDIX B
Wildlife species
m
INTENTIONALLY LEFT BLANK
M
DUDEK B-4
5444-02
September 2008
APPENDIX C
Jurisdictional Wetland Delineation Forms
-HI
M
INTENTIONALLY LEFT BLANK
4
9
m
WETLAND DETBtMNATION DATA FORM - Arid Wftst R«glon
Applicant/Owner:
lnvestigalor(s):
SampNng PQM: , i
Landform {hiltskpe, terrace, etc.):.
Subregion (LRR): Lai:
Section. Township. Ranoe:.9f^4 . T IS.5 f
Local relief <concaw. convex, none): t\Oy\€y Sope (%): ^ 5"%
Long: Datum:
NWI dasstflcallon: PJlpCjrt
(If no. explain in Remarks.)
Soil Unit Name: ^
Are dlnKdc / hydrologic conditions on me site typical for this time of year? Yes K No _
Are Vegetation f> Soii X or Hydrology signltcantly disturbed? Are -Nomitf Circumstances' present? Yes
Are Vegetation , Soil . or Hydroiogy nMurai^ problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS - Attach site map showing sampling point locations^ transects, important features, etc.
No.
m
Hydroptiytic Vegetation Present?
Hydric Soil Present?
Wetland Hydroiogy Present?
Yes No
Yes No
Yes No
Is the Sampled Area
within a Welland? Yes No
m
Remarks;,
(Kr^d riprap r^a\Qy\% ^ ''S\^v\\^\C(iM\^ il'*-^^^^''-
m VEGETATION
Tree Slratum (Use sctentific names.)
1.
2.
3. ,
4.
Absolute Oomtnuit Indicetcr
% Cover Species? Status
Syplinq/Shrub Slratum
i._D
Total Cover:
c3%
/
Herb Slratum
2.
3.
4.
5.
$,
7.
8.
Total Cover:
vyg9flYVintarafam
1.
2.
Tdal Ctwer: fS Vd
Dominance Test workstieei:
Numbw^ of Dominant Species
Thai Are OBL. FACW, or FAC:
Total Number of Dominant
Species Across M Strata:
Percent ct Dominant Species
That Are OBL. FACW. or FAC;
tA)
(B)
(Am)
Total Ccwer:
% Bare Ground in Herb Stratum ^ "h fo % Cover oTSotic Crust.
Remarks:
Prevalence index worksheet:
Total % Cover of:
OBL species
FACW species
FAC species
FACU species
UPL species
Column Totals:
MultiDlvbv:
X 1 =
x2 =
X3 =
x4 =
X5 =
(A)
no
(B)
Prevalence Index = B/A = /
»hdriH>hytic Vegetation buMcalors:
>C Dominence TesI is >50%
^ Prevalence Index is s3.o'
Morphological Adaptations'(Prwfde supporting
data in Remerks or on a separate sheet)
ProUematic Hydrophobic Vegetation' (Explain)
'indicators oT hydric soil and wetland hydrdogy must
be present.
Hydro|tfiytlc
Vegetation
Present? Yes X No.
US Army Co^ Of Engineers Artd West-Version 11-1-2006
sou. Samplbig Pokit:,
m
m
Profile Dasolption: (Oeacribe to the depth needed to documertf lha Indicator or cor^rni the absence of tndlcitfors.)
Depth USldS
T«(hw Bsm&dia
Redox Fgrturw
Cdorfmoisl^ 2i_ CotorfmolaH ^ TVDO' LOC"
'Type: CaConcentration. papepietlon. RM-Reduced M^x. 'Locatton: PL=Portt Lintna. RC"Roo( Channti. WMatrix.
Hydric Soil Indicators: (Applicable lo all LRRs, unless otherwise noted.)
Histosol (Al)
HIsHc Ep^edoo (A2)
Black Histic (A3)
HydrogetJ SulWe (A4)
Slratified Layers <A5) (LRR C)
1cm Muck (AS) (LRR D)
DepletedBelowDarkSurface(AII)
Thick Dark Surface (A12)
Sandy Mucky Mineral (SI)
Sandy Gieyed Matrix (S4)
Sandy Redox (SS)
Stripped Matrix (S6)
Loemy Mucky Mineral (Fl)
Loamy Gieyed Matrix (F2)
Depleted Matrix (F3)
Redox IDark Surface (F6)
Depleted Dari< Surface (F7)
Redox Depressions (F8)
Vernal Pedis (F9)
IrKflcatora for Problematic Hyifric Soils':
1cm Muck (A9) (LRR C)
2 cm Muck (AlO) (LRR B)
Reduced Vertic (Fifl)
Red Parent Material (TF2)
Other (Explain in Remarks)
Indicators of hydrophytic vegtiation and
welland hydrology must be present.
Restrictive Layer (If present):
Tvoe:
Deplh (Inches): Hydric Soil Present? Yes NO y
Remarks:
duo 'h nj>ra,f^
• HYDROLOGY
Primary Indicators fariv cne Indicator Is sufflcianH
SurfticeWater(A1)
High Water Table (A2)
Saturation (A3)
water Marks (81) (Nonrlvertne)
Sediment Deposits (B2) (Nonriverlne)
Drift Deposits (B3) (Nonrlvertne)
Surfsce ScS Cracks (B6)
inundation Visible on Aerial imagery (B7)
Water-Stamed Uaves (B9)
Salt Crust (811)
^c Crust (812)
Aquatic Invertebrates (B13)
Hydrogen Sulfide Odor (CI)
oxidized Rhizospheres akxig Living Roots (C3)
Presence of Reduced tron (C4)
Recent Iron Reduction in Plowed Soils (C6)
Other (Explain in Remarks)
Secondarv IndicHtors (2 or more required)
Water Marks (BI) (Riverine)
Sediment Deposits (B2) (Riverine)
Drtlt Deposits (B3) (Rlvarlne)
Drainage Patterns (810)
Dry-Season Water Tabie (02)
Thin Muck Surftce (C7)
Crayfish Burrows (08)
Saturation Visible on Aerial lmag«y(C9)
Shallow Aquitard (D3)
FAC-Neutral Test (D5)
Field Observations:
Surftce Water FVesent? Yes.
Water Table Present? Yes.
Stiuration Present? Yes.
(Includes carillaryftlnge)
No Y^ Depth (Inches):
Depth (inches): No
No Depth (inches): Wstiand Hydrology Present? Yes. No
Oasaibe Recorded Data (stream gauge, nwnitortng well, aerial photos, pre\riou$ Inspections), if avaflabls:
Remarks:
us Army Corps of Bigineers Arid West - Version 11>1-2006
m
WETLAND DETBUViNATION DATA FORM-Arid West Region
ftri«t/ate- UA AplOrxirintX. CUvCountv: ^/<aV^KbH, T)igflO S^nolnoOte: ^l^'Ofh
^X^O^:Ma Of C&.rlK\?Otd state: tC/y
lnviestigator(s):
Landfwm (hUtstope.terrace, etc.): fjiilSiOpC'
Subregion (LRR):,
Section,Township.Range: S.24 .T/2Sj
Sampftng Point:
Lai:
Local relief (concave, convex, none):.
__________ Long:
f^Qn^ Slope {%): ^
Soii Map Unil Name:
Are cHmetic / hydrologic condKlons on me site t^olcai TOr Uils time of year? Yes _
Are Vegetation ^ . Soil or Hydrology significantly disturbed?
NWI classiAcafion:.
Datum:.
No, (If no, explain in Remarks.)
Are Vegetation.
Soil.
Son or Hydrdogy. . naturally problematic?
Are'Nnmai Circumstances''present? Yes No.
(If needed, explain any answers in Remwks.)
SUMMARY OF FINDMOS - Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No
Hvdric Soil Present? Yes ^ No
Wetland Hvdroioov Present? Yes ^ No
Is the Sampled Area
within a Wetland? Yes No
Remarks: ,
VEGETATION
Tfe^ Strelum (Use scientific names.)
1,
2.
3.
Absolute Dominant Indicator
% Cover Species? Statm
Sapliriq/Shnjb Stratum
Total Cover:
IX 10% ML,
Herb Slratum
2.
Total Cover; 12
5%
WggilYWwaniftim
1.
2.
Total Cover: CV»
Total Cowr: "77 *A
% Bare Ground in Herb Stratum f" % cover of Biotic Cnjst.
Remarks:
Dominance Test worksheet:
Nun^er of Donlnant Species
That Are OBL, FACW, or FAC:
Total Number of Dominant
Species Across All Strata:
Percent ol Dominant Spedes
That Are OBL. FACW. or FAC:
(A)
(B)
(Am)
Prevalence Index worksheet:
Tolet^ACcwerof:
OBL species no
FACW species ^__„
FAC species
FACU species
i;PL species
Column Totals; "7^^^
Mnmplvl?Vi
X 1 =
x2 =
x3 =
x4 =
x5 =
(A) (B)
Prevalence Index = B/A » I
Hydrophytic Vegetation IndlcaHors:
j^lf Dominence Test is >50%
^ Proveience Index Is ^.O'
Morphological Adaptations'(Provide suppertino
data In Remarks or on a separate sheet)
Problematic Hydroph^c Vegetation' (B(plain)
'indicalors of hydric soil and wetland hydrology musl
be present.
Hydro i^ytlc
Vagatatlofl ./
PrtMrt? Yes No,
US Army Corpi of EnglfMers And West-Version 11>1>2O06
SOIL Sampling Point:
ProfOe Description: (Das^lbe to the depth needed to dooumant the Indicator or conflnn the titMnce of IncHcators.)
Depth
finches^ Goler fmolst) Color fmolsH
Redox Feafairea
^ . Type' Remarka
'Type: C=Concenfration. D«Dei^eticn, RMaReduced Matrix. 'Location: PL=Pore Lirring. RC=Rool Chennd, M=Matrlx.
Indicators for Prot^lematlc Hydric Solls^: Hydric SoH indicators: (AppHcabls to all LRRs, unless otherwise noted.)
Histosol (Al)
Histic Epipedon (A2)
Black Histic (A3)
Hydrogen Sulfide (A4)
Stralifiod Layers (A5) (LRR C)
1cm Muck (A9) (LRR D)
Depleted Belcrjir Daric Surface (A11)
Thick Dark Surface (A12)
Sandy Mucky Mineral (SI)
Sandy Gieyed Matrix (S4)
Sandy Redox (S5)
Stripped Matrix (S6)
Loamy Mucky Mineral (Fl)
Loamy Gieyed Matrix (F2)
Depleled Matrix (F3)
Red»r Dark Surface (F6)
Depleted Dartt Surface (F7)
Redox Depressions (F8)
Vernal Pools (F9)
1cm Muck (A9) (LRR C)
2 cm Muck (A10) (LRR B)
Reduced Vertic (F18)
Red Parent Material crF2)
Other (Explain In Remarits)
IndcBtcrs ol hydrophytic vegetation and
welland hydrology must be present.
Restrictive Layer (If present):
T>pe:
Deplh (Inches):. Hydric Soil Present? Yes, No
Remarks:
HYDROLOGY
Wetland Hydrolc^y Indicators:
Primary Indicators (anvone indieator is suffidenl)
^Surface Water (Al)
_ High Water Table (A2)
Saturation (A3)
Water Merits (81) (Nonrlvarine)
Sediment Deposits (S2) (Nonrlverina)
Drift Deposits (83) (Nonriverine)
Surhice Soli Cracks (86)
Inundation Visible on Aerial Imagery (87)
Water-Stained Leaves (89)
Salt Crust(BII)
Biotic Crust (812)
Aquatic Invertebrates (613)
Hydrogen Sulfide Odor (CI)
Oxidized Rhizospheres along Uving Roots (C3)
Presence of Reduced Iron (C4)
Recent Iron Reduction in Plowed Soils (C6)
Other (Explain in Remariis)
Secondarv Indicatofs (2 or more required)
Water Merits (BI) (Riverine)
Sediment Deposits (82) (Riverine)
Drill Deposils (83) (Riverine)
Drainage Patterns (810)
Dry-Season Water Table (C2)
Thin Muck Surfece (C7)
Crayfiah Burrows (Cfl)
Saturation Vislbte on Aerial Imagery (C9)
Shallow Aquitanl(D3)
FAC-Neutral Test (D5)
Field Observations:
Surftce Wteter FYesent? Yes, ' No.
Water Table Present? Yes No.
Saturation Present? Yes No.
(Includes catfllaiy firinge)
Depth (inches): i
Depth (inches):
i3eplh (Inches):
r'
Wstiand Hydridogy Present? Yes. No
Describe Recorded Data (stream gauge, monftoring weH, aerial photos, prevkxis inspections), if avcdlBbie;
Remarits:
US Anny Corps of Btf^neers Arid West-Version 11-1-2006
WETLAND DETBUMNAT10N DATA FORM - Arid Wftst Region
Project«ite: La f^olmdrT ^ Ciiy^ty: OOlfkhikd. ^Arx Q^nQ Date: Ol
AoDlieantfflwner: /V'jy 0^ UfffshCid State: /^A SampNngPohd: 3
, , Section, Township, Range:
Local reltef (concave, convwi, none): I^^AJl 9ope (%); <-/'/o
. Lat: Lono: Datum:
lnwslig«a(s): 0 • ^ V- dQ<X^\
Lartdform (hillslope, tenace, etc.):.
Subregion (LRR);
Soil Map Unit Name:
Are climatic / hydrologic contStlons on the site typical for ttifs time of year? Yes
NWI classificalion:.
No. (If no, explain in Remarks.)
Are Vegetation
Are Vegetation
Sol.
_. SoH.
or Hydrology.
,.«• Hydrology.
significantly diaturiied?
naturally pfoblenutle?
Are'Normal Circumstances'present? Yes_
(ff needed, explain any answers m Remarks.)
No.
SUMMARY OF FWDINQS - Attach site map showing sampling point locations, transects, important features, etc.
• Hydrophytic Vegelation Present?
Hydric Soil Present?
Wetland Hy*ology Present?
Yes
Yes
Yes
No
No
No ^
Is ttie Sampled Area
within a wetland? Yes NO
-4
Remarits:
VEGETATION
Tree Slratum (Use scienlific names.)
1.
2.
Absolute Dominant Indlcalor
% Cover Species? Stalus
Total Cover:
Saplino/Shrub Stratum
1.
2.
3.
A.
5
Total Cover:
tisdz-ScaUim
1. nYname^-Td
2.
3.
4.
5.
6.
7.
a,
/ooy. ^
WoadvVine Strahim
1.
2.
Total Cover 100%
% Bare Ground in Herb Stratum.
Total Cwer: 100V.>
. % Cover of Biotic Crust.
Remarks:
Dominance Test worksheet:
Numbu of Dominant Species
That Are OBL, FACW. or FAC;
Total Number t>f Dominant
Species Across AH Strata:
Percent ol Dominant Species
Thai Are OBL. FACW, or FAC:
(A)
(81
(WB)
Prevalence Index worksheet:
Total Cover of:
OBL species
FACW species
FAC spedes
FACU species
UPL species
Column Totals:
MuHiDlvt>v:
X 1 =
x2 =
x3 =
X4 =
x5 =
(A) (B)
Prevalence index = B/A =
Hydrophytic Vegetation indicators:
Dominence Test is >50%
Prevtrience Index is $3.0*
Morpholof^cBl Adaptations' (Provide supporting
data in Remarks or on a separate sheet)
Problematic Hydrophytic Vegetation'(Explain)
'indicators of hytHc soil and wetland hydrology must
be presertt.
Hydrophytic
Vegetation
Present? Yes No
us Amiy Corps of Engineers Arid West-versMm 11*1-2006
SOIL Sampling Point : 3
Profile Description: (Describe to the depth needed to document Ihe bidlcator or conflnm the absence o( Imflcators.)
Depth MaldJS-
flnchas^
Redox Feahires
Color fmolst) St— CokyftnolsH % Tvoe' Loc' Jsssm. Remarits
mfi. 3/X ^o'A cVA S-/g>
1 o^Kqz lo*/'
Ilk
Organic maiH^
'Twe: C'Concentration. DsDroletion. RM«Reduced Matrix. 'Location: PL=Pore Lining. RC=Root Channel. M=Malrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless other^se noted.)
Histosol (Al)
Histic Epipedon (A2)
Black HIslic (A3)
Hydrogen Sulfide (A4)
„ Stratified Layers (AS) (LRR C)
1cm Muck (A9) (LRR D)
Depleted BeloA'Derit Surfsce(A11)
Thick Dark Surftce (A12)
Sandy Mucky Mineral (SI)
Sandy Gieyed Matrix (S4)
Sandy Redo* (S5)
Stripped Matrix (S6)
Loamy Mucky Mineral (Fl)
Loemy Gieyed Matrix (F2)
Depicted Matrix (F3)
Redox Dartt Surface (F6)
DefSeled Dark Surface (F7)
Redox Depressions (F8)
Vernal Poo(s(F9)
Indicators for Problematic Hydric Soils':
1 cm Muck (A9) (LRR C)
2 cm Muck (AlO) (LRR B)
Reduced Venfc(FIB)
Red Parent Material (TF2)
Other (Explein in Remarks)
indicators ol hydrophytic vegetalion and
wetland hydrology nwst t>e present.
Restrictive Layer (If present):
Type:
Depth (inches):.
Remarks:
Hydric Soli Present? Yes, No.
HYDROLOGY
Wetland Hydrology IncUcators:
Primary Indicators f^pv ppe indtealor is suffldenn
Surface Water (A1)
High Water Table (A2>
Saturaticn (A3)
Water Marks (BI) (Nonrlvarine)
Sediment D^oslt$(B2)(NonrIvei1ne)
Orllt Deposits (83) (Nonriverlne)
Surftce SoB Cradts (B8)
Inundation Visible on Aerial Imagery (87)
Waler-stalned Leaves (B9)
Salt Crust (B11)
Biotic Crust (B12)
Aquatic Invertebrates (813)
Hydrogen Sutlids Odor (C1)
Oxitfized Rhizospheres along Uving Roots (C3)
FVesence of Reduced Iron (C4)
Recent Iron Reduction in Plowed Soils (06)
Otfier (Explain in Remarks)
Secondarv Indicators (2 or more required^
Water Merits (B1) (Riverine)
Sediment Deposits (82) (Riverine)
Drift Deposits (B3) (Riverine)
Drainage Patterns (810]
Dry-Season Water Table (C2)
, Thin Muck Surface (C7)
Crayfish Bunwrs (Cfi)
Saturtflon VAdble on Aerial Imagery (C9)
Shallow Aquitard (D3)
FAC-Neutral Test (05)
Fleid Observations:
Surftce Water FVesenl? Yes.
Water Table Present? Yes.
Saturation Present? Yes.
(Intrudes ctpBlary fringe)
No Depth (inches):
No
No
Depth (inches):
Depth (inches): Wetland Hydrology Present? Yes. No.
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarits:
US Anny Corps of Biglneers Arid West-Version 11-1-2006
m
m
m
WETLAND DETERMINATION DATA FORM-Arid West Region
Appncanl«>wner: /^f'-fv flf f^ariShCLd Sate: dA SampNng Point: Q
tnvestlgator($): Section, Township. Range:
LandfOmi f t^HMcoe. terrace, etc.): ffl il i^.Oj?C-
Sulmgioft (LRR): Let:
Local relief (concave, convex, none): /If^Vt-C-^
Lono:
Slope (%): £J2/P
Datum:
SoH Map unit Name:
Are dlmatlc / hytkoioglc conditions on tiw site typical for this time of year? Yes ^
Are Vegetation , Soil . or Hydi^ogy slgnifieantly dislurtwd?
Are Vegetation . Soli , or Hydrology nMurally problematic?
NWI dassiflcaton:
No. (If no. explain In Remarits.)
Are "Nomial Circumstances*present? Yes.
(If needed, explain any answers ki Rwnarits.)
No.
SUMMARY OF FINDINGS - Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present?
Hydric Soil Present?
Welland Hydrology Present?
Yes No
Yes No
Yes s/ No
Remarks:
Is me Sampled Area
within a Welland? Yes No
VEGETATION
Tr^,.g|rptV,ri) (Use scientific names,)
2.
Absolute Dominant Indicator
% gptf?r Species? StattJS
7f > ^
Total Cover:
Saollno/Shnib Stratum
2. M/x^aiima lauyrifitx.
3.
4.
5.
Total Cover;
WwtfYVintgtfgiWni
1,
2.
Total Coven 3
% Bare Ground in Herb Stratum. 15%
Total Cower: 7o
. % Cover of BloUeCmst.
Remarks;
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW. of FAC:
Total Number of Dominant
Species Acrt»s All Strata:
Percent ol Dominant Species
That Are OBL. FACW. or FAC:
(A)
(8)
(A/8)
Prevalence Index worksheet:
Tc*al% Cover ol:
OBL species
FACW species
FAC species
FACU species
UPL ^ies
Column Totals:
MulliDlvbv:
X 1 =
x2»
x3 =
x4 =
X5 =
(A) (B)
Prevalence Index = B/A =
Hydrophytic Vegetatltm Indicators:
Y!_ Dominance Test is >50%
Prevalence Index is s3.0'
Morphol^calA(ftptalions'(PFOvicle supporting
data in Remarks or on a separate sheet)
F^oblematic Hydrophytic vegetation'(Explain)
'indteators of hydric soil and wetland hydrdt^ nusi
be present.
Hydrophytle
Vegetation
Present? Yes No
US Aimy Corps Of Englneert Arid West-Version IM-2006
SOIL SampHngPotrtf -.1
ProfUa Desci4>tlon: (Describe to the depth needed to document the Indlcalor or conflnn lha aiisence of Indicators.)
Deplh
ilDStlSSl.
/hi2
Matrix
Colflff moists
Redox Features
Color fmolsll % Tvoe' Log' ,Jt?(turB Remarits
Organic h^dr^
^arviL|
'Type: C=ConcentraUon. D=Deple«on.RM=Reduced Matrix, \ocatlon: PLsPore Unmg, RC=R<)ot caiannel. M=Malrix.
Hydric SoH Indicators: (Applicable to all LRRs, unless otherwise noted.)
Histosol (Al)
_ HisHc Epipedon (A2)
Black Hisllc (A3)
Hydrogen Sidfide (A4)
Stratified Layers (A5) (LRR C)
1 cm Muck (A9) (LRR D)
Depleted Belcw Dertt Surface (All)
Thtak Dark Surftce (A12)
Sandy Mucky Mineral (SI)
Sandy Qleyed Matrix (S4)
Sandy Red<»t (S5)
Slipped Matrix (S6)
Loamy Mu(*y Mineral (Fl)
Loamy Gieyed Matrix (F2)
Depleted Matrix (F3)
Redox Darit Surface (F6)
Depleted Darit Surface (F7)
Redox Depressions (F8)
Vernal Pools (F9)
Indicators for Problematic Hydric Soils':
1 cm Muck (A9) (LRR C)
2 cm Muck (A10) (LRR 8)
Reduced Vertic (F18)
Red Parent Material (TF2)
Other (Explain in Remartcs)
^(Scators of hydrophytic vegetation and
welland hydrology must be present.
Restrictive Layer (If presetu):
Type:
Depth (inches): Hydric Soil Present? Yes. No.
Remarits:
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indeators fanv one Indicator is suTicienn
_ Surface Water (Al)
High Water Table (A2)
Saturation (A3)
Water Martts (81) (Nonriverlne)
Sediment Depouts (82) (Nonrlvarine)
Drift DepasR$(B3) (Nonriverlne)
Surfece SoH Cracks (86)
Inundation VlsS^le on Aerial Imagery <B7)
Water^ahed Leaves (B9)
Salt Crust (811)
Biotic Crust (B12)
Aquatic invertebrates (813)
Hydrogen Sulfide Odor (CI)
Oxiiflzed Rhizospheres along Living Roots (C3)
^ Presence of Reduced Iron (04)
Recent Iron Reduction In Plowed Soils (C6)
Other (Explain tn Remarits)
Secondarv indicators f 2 or mere reoulredl
Water Martts (81) (Riverine)
Sediment Deposits (82) (Riverine)
Drift Deposits (B3) (Riverine)
„:^Draftiaoe Patterns (BIO)
Dry-Season Water Table (C2)
Thin Muck Surftce (C7)
Crayfish Bunows (C8)
Saturation Visible on Aerial Imagery (C9)
Shallow Aquitand (03)
FAC-Neutral Test (D5)
Flald Otiservatlons:
Surftce Water Present?
Water Table Present?
Saturation Present?
(Includes catfHary fringe)
Deplh (ini^es):
Depth (Inches):
Depth (inches): f2.-/t^ Wetland Hydrology Present? Yes No.
Describe Reeonjed Data (stream gauge, monitoring weH, aerial photos, previous infections), if avBllable:
Remarits:
US Army Corps cS Biglneers Arid West-Version 11-1-2006
WETLAND DETERMINATiON DATA FORM-Arid West Region
Projeet/Sile Oly/Counl/. fa / / htkA^ Jfl 1 Pi ^a»««Mt^o Date: ^ •<2?0?
State: OA Swnpfing Poirtt: ^ Anolieenttf)wn^^l'fW Of /^Uri^bqd
lnv«8tlgata(s): C .P(^dj V. <:JTX\A.i Section.Township,Range: g^M .7taSj Ri^vJ
Landform (hillslope. tenace. etc.):.
aibregion (LRR); Lat:
LocalreSef(concave, convex, none): A OIX<-
Long:,
Sl«pe («):
Datum:
Soil MBp unit Name:
Are climatic / hydroiogic condUons on Ihe site twical la ihls tkne of year? Yes
Are Vegetation ^ . Soil ^ . or Hydrology ^iticantly disturbed?
Pit Vegetation . Sofl , or Hydrology naturally problematic?
NWI dasslfk^alkxi;.
No. (If no. explain In Remarits.)
Are 'Normal Circumstances" present? Yes _
(If needed, explain any answers in Remarits.)
No.
SUMMARY OF FINDINGS - Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytk; Vegetation Present? Yes , / No ^
Hvdric Soil Present? Yes No
welland Hydrology Present? Yes No ^
Is the Sampled Area
within a Wetland? Yes No
Remarks:
VEGETATION
Trp^ Str^li^m (Use scientific names.)
1. ,
2.
Absdute Dominant indicator
% Cover Spedes? Status
Tdal Cover:
Sapiinq/Shmb Stratum .
1. l^htA.S lA4fyi"V9tiCc
3.
4.
5.
6o
Herb Sfry|um .
Total Cover: <r(J%
Li.
2. V)t\(K^^l\\f^^ •(^'^^^\h^VV \%
Tdal Cower:
Woody Vine Stratum
% Bare Ground in Hetb Stratum.
Total C>>ver: 52%
^^"^^^ % Cowr of BIcttc Crast.
Remarits:
Dominance Test work^eet:
Number ol Dominant Species
That Are OBL, FACW. or FAC:
Tdal Number of Dominant
Spedes Across All Strata:
Percent of Dominant Species
That Are OBL. F/kCW, or FAC:
(A)
(B)
(A/B)
Prevalence Index worksheet:
Tc«al % Cover of:
OBL species
FACW spedes
FAC spedes
FACU species
UPL spedes
Column Totals:
MuHidv bv:
X 1 =
x2 =
x3 =
x4 =
X5 =
(A) (8)
Prevalence Index = B/A =
Hydrophytic Vegetation Indicators:
Dominance Test is >50%
Prevalence Index is S3.0'
Morphologic^ Adaptations' (Provide supporting
data in Remarks or on a s^rate sheet)
Problematic Hydrophytic Vegetation' (Explain)
'indicators o(hydric sdl and wetland hydrology must
be present.
Hydrophytic
Vegetation
Present? Yes No.
US Army Corps of Qtglneen Arid West-Version 11-1-2006
SOIL SampNng Point:. 5
Profile Description: (Describe to the depth needed to documettt the Indlcirtor or conflnn the ^ance of Indicators.)
Depth
(tnchw) Colcrlmdat^ _2L
0-ti> 5V V/
Colflffmol«»
Redox Feeturas
Tvoe' Loty^
_ M
TffltUft Renwrits
'Type: C=Concentration. D^Depletlon, RM=Reduced Matrix. 'Location: PL=Pore Unlno. RC=Root Channel. M°Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Histosol (Al)
Histic Epipedon (A2)
Black Histk: (A3)
Hydrogen SuIMe(A4)
Stratified Layers (>^5) (LRR C)
1 cmMuck(/«)(LRRD)
Depleled Below Darit Surftce (A11)
Thtek Darit Surftce <A12)
^ndy Mucky Mineral (SI)
Sandy Gieyed Matrix (S4)
Sandy Redox (S5)
Stripped Matrix (S6)
Loamy Mucky Mineral (Fl)
Loamy Gieyed Matrix (F2)
Depleled Matrix (F3)
Redox Dark Surface (F6)
Deplded Darit StirfaceiF?)
, Redtw Depressions (F8)
Vernal Pods (F9)
Indicators for Problematic Hydric Soils
1 cm Muck (A9) (LRR C)
2cmMuck(A10)(LRRB)
Reduced Vertic (Fl 8)
Red Parent Malerisl (TF2)
Other (Explain in Remarits)
indicators ol hydrophytic vegetation and
wetland hydrdogy must be present.
Restrictive Layer (If present):
Tvoe:
Depth finches): y
Hvdric Soli Present? Yas No Remarits;
HYDROLOGY
Primary Indicators fanv one Indicalor Is sufrielenl^
surfece Water (A1)
Iflgh Water Table (A2)
Saturation (/\3)
Water Martts (BI) (Nonriverlne)
Sediment Deposits (82) (Nonrlvarine)
Drift Deposits (83) (Nonrhrerlna)
Surftce Sdl Cradts (86)
Inundation Visible on Aerial Imagery (87)
Water-^kied Leaves (89)
&ilt Crust (BID
Biotic Crust (B12)
Aquatic Invertebrates (B13)
Hydrogen Sulfide Odor (CI)
Oxidized Rhizospheres along Living Roots (03)
Presence of Reduced Iron (C4)
Recent Iron Reductton In Plowed Sdls (C6)
Other (BtplBin in Remarits)
Secondarv tndtcaltys f2 or more required)
Water Merits (BI) (Riverine)
Sediment Depf»its (B2) (Riverine)
Drift Deposils (B3) (Riverine)
Drabiage Patterns (810)
Diy-Season Water Table (C2)
Thin Muck Surface (C7)
Crayfish Bunows (08)
Saturation Vlril}le cn Aerial Imagery (C9)
Shallow /VqultBRl (D3)
FAC-Neutral Test <D5)
Field Observations:
Surface Water FVesent?
Water Table Present?
Saturation Present?
(Indudes catfllary fringe)
CTepth (inches):.
Depth (indies):.
Depth (Inches):. Wetland Hydrology Present? Yes. No
Describe Recorded Data (stream gEAige, monitoring well, aerial photos. pr6\4ous inspections), if available:
Remarits:
US Army Corps of &glne«s Arid West-Version 11-1-2006