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BIOLOGICAL EVALUATION/BIOLOGICAL ASSESSMENT
for the
South Lake Tahoe Public Utility District
Pioneer Trail Waterline and PRV Upgrade Project
South Lake Tahoe Public Utility District
Lahontan Regional Water Quality Control Board
PREPARED BY DATE: 15 March 2022
Garth Alling
WILDLIFE BIOLOGIST, Sierra Ecotone Solutions LLC
2 STPUD Pioneer Trail Waterline Replacement Project
I. INTRODUCTION
This Biological Evaluation (BE) and Biological Assessment (BA) has been prepared to evaluate
potential effects of the South Tahoe Public Utility District (District) Pioneer Trail Waterline and
PRV Upgrade Project on animals and plants listed as threatened or endangered by the U.S. Fish
and Wildlife Service (Endangered Species Act of 1973 (ESA; 16 U.S.C. § 1531 et seq.) or
designated as sensitive, threatened or endangered by the State of California under the California
Endangered Species Act (Fish and Game Code Sections 2050-2098) and designated as sensitive
on the 2013 United States Forest Service Region 5 Sensitive Species List (USDA 2013). The
Biological Evaluation (BE) portion specifically addresses whether the project may result in a loss
of viability of Forest sensitive species, general wildlife species, or cause a sensitive species to
trend toward federal listing. The Biological Assessment (BA) portion of this document has been
prepared to document analysis of the potential direct and indirect effects of the proposed project
on federally listed threatened, endangered, proposed, and candidate species known or expected to
occur within the project area. This BE/BA was prepared in accordance with Appendix G of the
California Environmental Quality Act (CEQA) and Forest Service Manual (FSM) direction
2672.42 and meets legal requirements set forth under section 7 of the Endangered Species Act of
1973, as amended and implementing regulations [19 U.S.C. 1536 (c, 50 CFR 402.12 (f) and
402.14 (c)].
II. PROJECT DESCRIPTION
Purpose
The South Tahoe Public Utility District (District) owns and operates the water distribution
system and waste water collection and treatment system within its Service Area in the City of
South Lake Tahoe and unincorporated areas of El Dorado County (Figure 1). The District
regularly conducts condition assessments of existing water facilities to identify opportunities to
optimize the system to better provide reliable water services safely, efficiently and cost
effectively. The Pioneer Trail Waterline and PRV Upgrade Project (Project) would install new
water pipeline, nine new and two replacement fire hydrants, and replace/relocate two existing
pressure regulating stations to improve capacity and reliability, enhance fire protection, and
provide an increased level of service within the surrounding community.
The Project Area is located along Pioneer Trail from Marshall Trail west to Washoan Blvd
(Figure 2). Pioneer Trail is an important travel route between Meyers and Stateline, Nevada that
bypasses central South Lake Tahoe. The proposed new waterline in Pioneer Trail is
approximately 1.5 miles in length and would become an important backbone of the water system.
The 16-inch pipeline would significantly improve fire flows to multiple neighborhoods and
increase overall water system efficiency and capacity to certain neighborhoods. The new
waterline also allows for the proposed installation of nine new fire hydrants along the important
urban-wildland interface of Pioneer Trail. The hydrants would be installed to meet fire standards
3 STPUD Pioneer Trail Waterline Replacement Project
that require developed properties to be no more than 250 feet from a fire hydrant and
undeveloped properties to be no more than 500 feet from a fire hydrant.
Also in conjunction with the waterline installation, two new pressure regulating valve (PRV)
stations would be installed. PRVs have a critical role in water delivery systems because the valve
reduces incoming high pressure to a level that is suitable for downstream delivery. Proposed new
PRV Station #1 would be located at the intersection of Pioneer Trail and Jicarilla and would
provide a second feed from the Montgomery Estates Zone to both the Susquehana Zone and the
Pine Valley Zone to mitigate existing fire flow deficiencies. Proposed PRV Station #2 would re-
locate two existing PRVs (PT/Kokanee and PT/Marshall) located in below-grade vaults on a
curve in the traffic lanes Pioneer Trail would into a single above-ground station on Marshall
Trail, which is a much lower traffic side street. The existing PRVs were constructed in the late
1980's in a dangerous location and are currently nearing the end of their useful lives. A new PRV
is needed in the same location at Marshall Trail to provide a secondary feed to over 100
customers from the Montgomery Estates Zone to the Stateline Zone in the Meadow Lakes
Neighborhood.
Location
The Project is located on the south shore of Lake Tahoe in the within unincorporated areas of El
Dorado County (Figure 1). The Project Area (Figure 2) is located along Pioneer Trail from
Marshall Trail west to Washoan Blvd. Pioneer Trail is an important travel route between Meyers
and Stateline, Nevada that bypasses central South Lake Tahoe. The route is through residential
neighborhoods and open forest. Trout Creek passes under Pioneer Trail via culvert just east of
Golden Bear Trail.
The Project Area is contained within the South Lake Tahoe United State Geological Society
(USGS) 7.5 Minute Quadrangle Topographic Map and occurs within Township 12N Range 18E
in Sections 10 and 15 on the Mt Diablo Meridian.
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Project Location
^_Project Site
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0 3.5 7
Miles
Legend
Project Area
STPUD Service Area
City of South Lake Tahoe
TRPA Boundary
State Boundry
County Boundary
Project Area
Pioneer Waterline Replacement Project
Figure 1.
Project Vicinity
Sources: STPUD, TRPA, USGS. Map date: March 2, 2022
Lake
Tahoe
4
0 0.5 1
Miles
Pioneer Waterline Replacement ProjectLegend
STPUD Service Area
Project Area
Figure 2.
Project Area
Sources: STPUD, TRPA, USGS. Map date: March 2, 2022
6 STPUD Pioneer Trail Waterline Replacement Project
Project Overview
The purpose of the Pioneer Trail Waterline and Facilities Upgrade Project (Project) is to provide
an increased level of service and enhanced fire protection capability. The District proposes to
install new water pipeline in Pioneer Trail to increase water system reliability and improve fire
flows. Pioneer Trail is an important urban-wildland interface and new fire hydrants would also
be installed to meet current fire standards. In conjunction with the new waterline installation, two
new pressure regulating valve (PRV) stations would be installed. The new PRV stations are
needed to mitigate existing fire flow deficiencies and to provide several isolated neighborhoods
with improved flows and supplemental feeds. Each of these components are described in further
detail below.
Project Components
Pioneer Trail Waterline
This portion of the Project proposes installation of approximately 1.5 miles of new 16-inch
waterline within Pioneer Trail from Susquehana Drive (Pine Valley Zone) east to Marshall Trail
(Montgomery Estates Zone). This project will loop the distribution system and improve fire flow
to approximately 1,000 customers in the Pine Valley and Susquehana Zones. The proposed main
waterline would be 16” ductile iron pipe (DIP) that would connect to an existing 8-inch steel water
main on Susquehana Drive. The pipeline would be installed within the roadway at a minimum
depth of 42-inches. In addition to the pipeline, a total of 5 residential water customers will have
water services replaced.
In addition, approximately 1,500 linear feet of 10-inch aging steel waterline will be replaced with
a new 12-inch C900 PVC waterline on Pioneer Trail between Golden Bear Trail and Marshall
Trail. A new 12-inch C900 PVC waterline of 460 feet would be installed to connect the new
proposed PRV Station #2 on Marshall Trail (see below) to Kokanee Trail. This new waterline
would also replace approximately 280 feet of existing 8 and 10-inch steel pipe on both streets.
The contractor will comply with California Division of Drinking Water standards for installation
of new water mains. Each completed section would be pressure tested for leakage and all of the
new pipe will be disinfected per AWWA (American Water Works Association) Standards.
New sections of waterline would be tied into the existing system only after testing and disinfection.
Upon completion of the install, the trenches would be backfilled and the roadway replaced.
Existing guardrail and signage would be protected throughout construction along with any existing
curb and gutter.
New Fire Hydrant Installation
The installation of new fire hydrants within the Service Area is necessary to meet fire standards
that require developed properties to be no more than 250 feet from a fire hydrant and undeveloped
7 STPUD Pioneer Trail Waterline Replacement Project
properties to be no more than 500 feet from a fire hydrant. A total of nine new fire hydrants would
be installed along Pioneer Trail between Susquehana Drive and Marshall Trail. An existing
hydrant at Marshall Trail and Cattleman’s Trail would also be replaced as well as a hydrant at
Marshall Trail and Pioneer Trail. Each hydrant would be connected to the new waterline via a 6-
inch fire hydrant lateral and gate valve off of the hydrant tee.
Pressure regulating stations
Two new pressure regulating stations equipped with pressure regulating valves (PRVs) are
proposed to be installed. PRVs have a critical role in water delivery systems because the valve
reduces incoming high pressure to a level that is suitable for downstream delivery.
Proposed new PRV Station #1 would be located at the intersection of Pioneer Trail and Jicarilla.
The proposed Pine Valley PRV would have a 2-inch domestic and 12-inch fire PRV and the new
Susquehana PRV would have a 2-inch domestic and 6-inch fire PRV. The PRV station would
regulate flows coming from the Montgomery Estates Zone to the Susquehana Zone and the Pine
Valley Zone via the new Pioneer Trail waterline and would provide a secondary feed that mitigates
existing fire flow deficiencies. The PRVs would be installed on a concrete pad and enclosed in a
pre-fabricated aluminum box.
Proposed PRV Station #2 is located on Marshall Trail and would house the Kokanee, Marshall,
and Stateline PRVs each equipped with a 2-inch domestic PRV and an 8-inch fire PRV The
existing Kokanee and Marshall PRVs are the sole source of water supply to approximately 330
customers in the Kokanee and Golden Bear Zones. However, the PRVs were constructed in the
late 1980's and are currently nearing the end of their useful lives. They are located in below-grade
vaults on a curve in the high traffic lanes of Pioneer Trail and these would be abandoned in place
and the new PRVs installed in the proposed above-ground Station #2 on Marshall Trail, which is
a much lower traffic side street. The new Stateline PRV is proposed to connect the Montgomery
Estates Zone and provide a secondary feed to over 100 customers located in the Meadow Lakes
Neighborhood. The proposed PRVs would be installed on a concrete pad and enclosed in a pre-
fabricated aluminum box.
At the proposed locations the site would be cleared and grubbed to accommodate the concrete pad
for the new stations. The new stations are proposed to be pre-fabricated insulated and heated
enclosures construction of marine grade aluminum in a dark green color. The enclosures are
designed to provide protection from freezing and vandalism and also easy access for maintenance
and testing. Instrumentation and communication panels with an antenna would also be installed on
the concrete pads at each of the stations. The portion of the system being replaced would generally
remain in service until the new system has been tied in and then the old system would be abandoned
in place.
8 STPUD Pioneer Trail Waterline Replacement Project
Construction Phasing, Schedule and Equipment
Construction is planned for 2024 and is anticipated to occur within one TRPA grading season
between May 1st to October 15th. The PRV stations would be built in conjunction with the water
pipeline installations and all new components would be pressure tested and disinfected at the
same time. When testing is complete, the new components would be tied in with the existing
system.
The contractor shall comply with the TRPA standard conditions of approval. Construction that is
not completed during the TRPA construction season for earth moving activities between May 1st
and October 15th would require a TRPA Grading Season Exception. On-site work would be
performed from 8 am to 6 pm Monday through Friday. Work outside these hours would be
approved by the District a minimum of 48-hours before the abnormal working hours are
scheduled to begin.
General construction equipment that would be utilized for waterline projects include excavator,
mini-excavator, loader, water truck, service vehicles, small remote sheep’s-foot compactor,
vacuum truck, sweeper, milling machine, smooth drum compactor, and a paving machine. All
but the paving equipment (the last 3 on the list) are used every day.
Earthwork and Excavations
Earthwork and excavations that result in temporary disturbance will be necessary for Project
implementation. Excavation is defined as being 18 or more inches of depth below the existing
surface. Water pipeline trenches are expected to be 3 to 5 feet wide and generally require
excavations of 5 feet deep. Excavations will primarily occur within the El Dorado County ROW.
If excavation is required on private property for PRV Station #2, the District would request an
easement. If no easement is granted, then the District will look to acquire land to build the
aboveground station on or it would be placed in an underground vault within the ROW. A TRPA
pre-grade inspection shall be completed prior to any excavation or saw-cutting activities.
Pipeline and Utility Trenching and Excavations
The contractor shall be responsible for contacting all utility companies, local agencies and/or
utility districts as to the location of all underground facilities. Location and depth of existing
utilities where shown on plans are based on best available information. No guarantee is made as
to the accuracy of this information or that all utilities are shown. It shall be the contractor’s
responsibility to locate, protect, and maintain all existing utilities. The contractor or any
subcontractor for this contractor shall notify members of underground service alert 48 hours in
advance of performing excavation work by calling underground service alert #811. Excavation is
defined as being 18 or more inches of depth below the existing surface.
The contractor shall pothole all utility and storm drain crossings along the pipeline alignment in
advance of installation. The contractor shall report the results of the pothole in writing to the
9 STPUD Pioneer Trail Waterline Replacement Project
engineer 48 hours (not to include weekends or holidays) prior to undertaking any corrective
action. Should any corrective work be done prior to notification, the District assumes no liability
for the costs incurred for this work.
All interties between new water mains and the existing water system, including new water
service connections, and fire hydrant installations and transfers, shall only be made after all
pressure testing and disinfection requirements are satisfactorily met. The contractor shall be
responsible to provide all blow offs necessary for flushing and sampling of all new water mains
as required by the California State Water Resources Control Board and project specifications.
Where new water mains are being installed in paved sections the asphalt replacement shall be the
clear trench width for the pipeline size being installed plus twenty-four inches (24") in County of
El Dorado right of way, as provided in the contract specifications. The contractor shall replace
all traffic striping that is disturbed during construction.
The thickness of replacement pavement is 3 inches or to match the existing depth in the El
Dorado ROW as specified in the project plans.
The contractor shall protect and be responsible for any disturbance or contamination to any dry
wells, storm water collection or retainage systems including storm drain pipe, curb & gutter,
valley gutters and horizontal drains through-out the project area. Any damage shall be repaired at
no additional cost to District. The contractor shall not stock pile any material upon any drainage
facilities. All sewer pipes damaged during the execution of the project shall be repaired per plan
details.
Fill Materials and Placement
All excavations shall be backfilled or trench plated at the end of each day's work per the plan
specifications. Within paved areas, trenches will be backfilled with a combination of sand, native
material, Class II aggregate base and slurry. Excavations within existing paved areas shall be cold
patched or covered with steel plates as required per specifications to match the existing pavement
at the end of each day’s work. All trench plates shall be non- skid type and have cold patch applied
to the edge for traffic approach and departure.
After the new main is placed into service, the existing water mains, where shown on the project
drawings, are to be abandoned in place by cutting out a section of pipe and installing a cap or plug
on the end of the pipeline. Existing fire hydrants to be abandoned will be removed and capped
below grade.
Only new water service connections where shown on the project plans shall be installed per the
Districts standard details and project drawings. After Project completion, the locations of all
existing water services shall be verified and marked in the field.
10 STPUD Pioneer Trail Waterline Replacement Project
Disposal of Excess Excavated Materials
All excess material from the project is to be removed from the site and disposed of at a site
approved by the TRPA. For this Project, excess spoil may be temporarily stored at the Contractor
staging area at the District Wastewater Treatment Plant. No material shall be stored in any stream
environment zone or wet area. The contractor shall not stock pile any material upon any drainage
facilities. Contractor shall remove all material generated by any asphalt saw cutting operation
during or immediately after saw cutting by using adequately sized vacuuming equipment to
accommodate the removal process.
Site Cleanup and Restoration
All disturbed areas shall be restored to match pre-existing conditions. Unimproved areas and areas
not landscaped shall be revegetated with native species in accordance with the TRPA handbook of
best management practices. Existing vegetation removed during construction shall be chipped and
mulched on site and stored for use during revegetation. Application of a mulch may enhance
vegetative establishment. Any disturbance of private property shall be restored by the contractor
at their expense. All traffic striping that is disturbed during construction shall be replaced by the
contractor.
Site Access, Staging Areas, and Parking
The District would likely provide a Contractor staging area at the Wastewater Treatment Facility
located off of Al Tahoe Blvd. Additional staging may occur within compacted shoulder areas of
Pioneer Trail if allowed by El Dorado County. Contractors’ equipment and employee vehicles
shall park on existing paved surfaces or existing compacted road shoulders. Contractor shall
provide crushed rock in areas of temporary construction access to minimize migration of sediment.
Project Design Features and Best Management Practices
A. Best Management Practices to Protect Surface and Ground Water/Sediment and
Erosion Control Plan
A pre-grade inspection shall be completed prior to any saw cutting or excavation activities. The
Contractor shall comply with the State Water Resource Control Board waste water discharge
requirements for the project and the City of South Lake Tahoe’s encroachment permit. To ensure
that potential impacts to surface water and ground water are avoided, reduced and minimized, the
following measures and BMPs will be implemented as necessary based on site conditions at
individual work sites:
• During construction, environmental protection devices, such as erosion control, dust
control and vegetation protection devices shall be maintained at all times.
11 STPUD Pioneer Trail Waterline Replacement Project
• Soil and construction material shall not be tracked off the construction site. Grading
operations shall cease in the event that this condition is in danger of being violated.
• Loose soil mounds or surface shall be protection from wind or water erosion by being
appropriately covered at the end of each work day or when required by TRPA.
• The contractor shall not stock pile any material upon any drainage facilities. Excavated
material shall be stored upgrade from the excavated area whenever possible. No material
shall be stored in any stream environment zone or wet area.
• All excess material from the project is to be removed from the site and disposed of at a site
approved by the TRPA. No excess material shall be stored on site after hours. Contractor
shall remove all material generated by any asphalt saw cutting operation during or
immediately after saw cutting by using adequately sized vacuuming equipment to
accommodate the removal process.
• No equipment or vehicles shall be placed outside the state, city, or county right of way.
Contractor shall provide crushed rock in areas of temporary construction access to
minimize migration of sediment.
• The contractor shall protect and be responsible for any disturbance or contamination to any
dry wells, storm water collection or retainage systems including storm drain pipe, curb &
gutter, valley gutters and horizontal drains throughout the project area. Any damage shall
be repaired at no additional cost to the District.
• If groundwater is intercepted during some excavations, dewatering may need to be
implemented onsite. The contractor shall be responsible for the handling and proper
disposal of distribution system water encountered during system tie-ins in accordance with
the plan specifications.
B. Construction Noise Reduction
To reduce construction related noise, the following measures will be implemented:
• Noise shall be reduced by mandatory use of mufflers on all construction vehicles and
equipment. Where feasible solenoid pavement breakers will be used in lieu of air powered
jack hammers.
• Construction activities will be limited to the hours of 8:00 AM and 6:00 PM, pursuant to
TRPA Code of Ordinances Chapter 68, Noise Limitations.
C. Migratory Bird Nest Site Protection Program
12 STPUD Pioneer Trail Waterline Replacement Project
For construction activities proposed to occur during the nesting season (March 15 through
August 15), and outside of paved areas, the contractor and District shall review the Project Area
to identify any migratory bird nest sites that may be present. If a nest is present in the immediate
vicinity, a qualified biological monitor shall be contacted to evaluate whether any migratory
birds are impacted by the project. The biological monitor shall have the authority to stop
construction near occupied sites if it appears to be having a negative impact on nesting migratory
birds or their young. If construction must be stopped, the monitor must consult with USFWS
and CDFW staff within 24 hours to determine appropriate actions to restart construction while
reducing impacts to identified migratory bird nests.
D. Prevent and Control Invasive Species
To prevent the spread of invasive plant species, the following measures and BMPs will be
implemented:
• Construction vehicles, including off-road vehicles, will be cleaned when they come into
the Basin or come from a known invasive plant infested area. Equipment will be considered
clean when visual inspection does not reveal soil, seeds, plant material, or other such
debris.
• Equipment will be staged in weed-free areas to prevent vehicles from introducing or
spreading invasive species.
• Earth-moving equipment, gravel, fills, or other materials are required to be weed-free.
Onsite sand, gravel, rock, or organic matter will be used when possible or weed-free
materials from gravel pits and fill sources that have been surveyed and approved will be
used.
• Minimize the amount of ground and vegetation disturbance in the construction areas.
Upon completion of construction, vegetation will be reestablished in the footprint to
minimize weed establishment after the removal.
III. ACTION AREA
The Project is located in California on the south shore of Lake Tahoe in and around the City of
South Lake Tahoe within the District’s Service Area (Figure 1). The Project Area (Figure 2)
shows the location of the project in relation to the South Lake Tahoe Area. The Project Area is
contained within the following United State Geological Society (USGS) 7.5 Minute Quadrangle
Topographic Maps: South Lake Tahoe, Emerald Bay, and Echo Lake. The Project Area occurs
within sections 10.11, 15 & 16 Township 12N Range 18E on the Mt Diablo Meridian.
13 STPUD Pioneer Trail Waterline Replacement Project
For this Project, the Action Area or Area of Potential Effect was delineated by a one-mile radius
from the Project Area, as shown in Figure 3. The Action area is defined as all areas that may be
affected directly or indirectly by the Project and not merely the immediate area involved in the
action. It encompasses the geographic extent of environmental changes (i.e., the physical,
chemical and biotic effects) that may result directly and indirectly from the action. The Action
area is larger than the area directly affected by the action. The nature of the project results in
impacts occurring within the Project Area itself and not within the Action Area.
Figure 3.
Action Area
![
![
2,145 m
7,035 ft
1,904 m
6,245 ft
16,906 ft / 3.20 miles
18,506 ft / 3.50 miles
4 0 0.5 1
Miles
Sources: STPUD, USGS. Map date: March 14, 2022
Legend
Action Area (±4,726 acres)
Project Area
![Highest Elevation within the Action Area
![Lowest Elevation within the Action Area
Pioneer Waterline Replacement Project
15 STPUD Pioneer Trail Waterline Replacement Project
Project Area Description
Regional land uses within the District’s Service Area include commercial, residential, mixed use,
recreation, resort recreation, open space, conservation, and the tourist core area in California. A
large number of Area Plans, Community Plans, and Plan Area Statements are in effect within the
Service Area. Zoning designations within the Service Area are also comprehensive. However,
the Project Area only includes the easement area of the ROW within the streets of the City of
South Lake Tahoe and the roads in the unincorporated parts of El Dorado County within the
Service Area. The majority of the ROW within the Project Area is located in residential
neighborhoods and mixed use commercial areas. The Project Area was visited in person the first
week of October 2020.
Topography and Soils
As shown in Figure 3, the elevations within the Action Area range from a low point of 6,223-
feet at the natural rim of Lake Tahoe to a high point of 9,157 feet. The dimension of the Action
area is 68,906 feet long in a north-south direction and 53,012 feet wide from the west to the east
for a total area of 43,009 acres.
The topography of the Lake Tahoe Basin is varied with at times complex terrain and elevations
ranging from 6,220 feet at lake level to 10,000 feet at Monument and Freel Peak outside of South
Lake Tahoe, California. The City of South Lake Tahoe is relatively flat at its center and the
Project Area consists of flat slopes within the ROW.
Results from the NRCS Web Soils Survey of the Project Area may be found in Appendix 6.
(NRCS 2007; http://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm, Accessed December
15, 2021). A total of 36 soil map units from the Tahoe Soil Survey are contained within the
Project Area. Of these soil units, 17 of them occur in less than 1% of the Area of Interest (AOI).
Only two soil units occur in 10% or more of the AOI: the Christopher-Gefo complex (0-5%
slopes) is found within 27% of the AOI and Jabu coarse sandy loam (0-9%) is found within
10.8% of the AOI.
Hydrology
The Project Area is not directly hydrologically-connected to perennial or intermittent surface
water channels. Within the road rights-of-way where Project work will occur, existing
stormwater drainage systems include curb and gutter systems and drop inlets that are maintained
by the City of South Lake Tahoe. The stormwater conveyances are ultimately connected to Lake
Tahoe.
The Project Area contains FEMA flood hazard zones that were mapped on a federal Flood
Hazard Boundary or Flood Insurance Rate Map or other flood hazard delineation map. None of
the project area is within the flood zone as the project lies above Trout Creek. Because of project
16 STPUD Pioneer Trail Waterline Replacement Project
area topography and soil types, seasonal high groundwater is not expected to be encountered at
proposed trench depths (less than 5 feet) that will occur in the ROW project area.
Vegetation
The proposed Project Areas are within the road right-of-way in the unincorporated areas of El
Dorado County. The proposed Project Areas contain existing disturbance in the form of road
shoulder, road base, existing compacted dirt, gravel, landscaping, pavement, existing facilities or
a combination of the above. Vegetation within the Action Area is primarily Jeffrey Pine (Pinus
jeffreyi) forest (Keeler-Wolf 2013) with an open canopy including some white fir (Abies
concolor). The shrub layer is sparse and comprised of white leaf manzanita (Arctostaphylos
patula), antelope bitterbrush (Purshia tridentata), and chinquapin (Chrysolepis sempervirens).
The herbaceous layer is very minimal and includes common species like sulfur buckwheat
(Eriogonum ovalifolium var. ovalifolium), groundsmoke (Gayophytum diffusum), and tansy
mustard (Descurania incisa).
IV. PROJECT REVIEW AND PERMITTING
For work performed on the valves within the right-of-way, the District is allowed access for
maintenance and construction based on the Service Agreement Contracts they hold with each
individual customer and El Dorado County. Each property owner/customer will be notified prior
to work that may interrupt water service for their respective property. Minor periods of water
shut-off will occur during the installation process, which is anticipated to last less than four hours
each day during instillation.
Tahoe Regional Planning Agency
The Tahoe Regional Planning Agency (TRPA) enters into agreements with local agencies to
streamline the permitting process. These agreements allow local agencies to perform
environmental review on projects for conformance with TRPA standards. The agreements are in
the form of Memorandum of Understanding (MOU) that are signed by each partner. The District
currently has a Memorandum of Understanding with the Tahoe Regional Planning Agency dated
23 March 2012. The District’s MOU with TRPA is an MOU for Public Works Providers that
allows for repair and maintenance of underground facilities without TRPA’s review. This allows
for increased efficiency and provides for increased protection of local and natural resources as
agreed to in the MOU. The Memorandum of Understanding between Tahoe Regional Planning
Agency and South Tahoe Public Utility District can be located here:
http://www.trpa.org/wp-content/uploads/FINAL_Public_Works_MOU.pdf
Attachment A, identifying STPUD on page 5 of 9 can be found here:
http://www.trpa.org/wp-content/uploads/FINAL-Public-Works-MOU-Attachment-A.pdf
17 STPUD Pioneer Trail Waterline Replacement Project
The listing of Exempt and Qualified Exempt Activities can be found here:
http://www.trpa.org/wp-
content/uploads/FINAL_Public_Works_MOU_Attachment_B.pdf
Lahontan Regional Water Quality Control Board
The District must comply with General Waste Discharge Requirements specified by the Regional
Water Quality Control Board and the Water Quality Control Plan for the Lahontan Region
(Basin Plan). Board Order R6T-2016-0010 outlines the requirements for project coverage under
what is commonly referred to as the Tahoe General Construction Permit. This General Permit
regulates discharges of pollutants in storm water associated with construction activity (storm
water discharges) to waters of the United States within the Lake Tahoe Hydrologic Unit from
construction sites that disturb one or more acres of land surface, or that are part of a common
plan of development or sale that disturbs one or more acres of land surface. However, activities
associated with municipal facilities under an approved NPDES Storm Water Management
Program for routine maintenance on existing facilities are not required or eligible to be covered
under this permit.
US Forest Service
No Project activities will occur on National Forest System lands.
V. USFWS CONSULTATION HISTORY
The District requested consultation with the Reno Office of the US Fish and Wildlife Service
(Service) for the Project through IPaC. The Service provided a species list on dated 17 January
2022. (see Appendix B Consultation Code: 08ENVD00-2022-SLI-0154). A total of three species
were identified to have the potential to occur within the Action Area: Sierra Nevada yellow-
legged frog (Rana sierrae), Whitebark pine (Pinus albicaulis), and Lahontan cutthroat trout
(Oncorhynchus clarkii henshawi) and Monarch butterfly (Danaus plexippus).
According to the letter: “A Biological Assessment is required for construction projects that are
major Federal actions significantly affecting the quality of the human environment as defined in
the National Environmental Policy Act (42 U.S.C. 4332(2) (c)). For projects other than major
construction activities, the Service suggests that a biological evaluation similar to a Biological
Assessment be prepared to determine whether the project may affect listed or proposed species
and/or designated or proposed critical habitat. Guidelines for preparing a Biological Assessment
can be found at: http://www.fws.gov/midwest/endangered/section7/ba_guide.html.”
This BA has been prepared in response to the above referenced Consultation Code and at the
request of the California State Water Resources Control Board.
18 STPUD Pioneer Trail Waterline Replacement Project
VI. SPECIES/CRITICAL HABITAT CONSIDERED FOR THE BIOLOGICAL
ASSESSMENT
The Biological Assessment (BA) portion of this document has been prepared to document
analysis of the potential direct, indirect, and cumulative effects of the proposed project on
federally listed threatened, endangered, proposed, and candidate species known or expected to
occur within the project area. The USFWS identified the following species for evaluation in this
BA; no critical habitat is present:
Monarch butterfly (Danaus plexippus) – Condidate
Lahontan cutthroat trout (Oncorynchus clarki henshawi)- Threatened
Sierra Nevada yellow-legged frog (Rana sierrae) – Endangered
Whitebark pine (Pinus albicaulis) – Proposed Threatened
VII. SPECIES/CRITICAL HABITAT CONSIDERED FOR THE BIOLOGICAL
EVALUATION
The Biological Evaluation (BE) portion specifically addresses whether the project may result in a
loss of viability of State-listed species or cause a sensitive species to trend toward federal listing.
The list of CA Endangered, Threatened, Candidate Endangered, Candidate Threatened,
Sensitive, Delisted or Rare species is provided by the California Natural Diversity Database
(CNDDB) RareFind 5. A CNDDB occurrence report was generated for the 7 7.5 Min. maps
region surrounding South Lake Tahoe Quad (Appendix B; accessed January 2022) as well as the
CNPS Rare and Endangered Plant Database (February 2022). The occurrence reports identified
seven State-listed wildlife species with occurrences in those quadrangles monarch butterfly,
Danaus plexippus; willow flycatcher, Empidonax traillii; Sierra Nevada yellow-legged frog,
Rana sierrae; bald eagle, Haliaeetus leucocephalus; California wolverine, Gulo gulo;; Lahontan
cutthroat trout, Oncorhynchus clarkii henshawi; and bank swallow Riparia riparia;(as noted in
Table 3 below) and the following (Rare, Threatened or Endangered) plant species Tulare
rockcress, Boechera tularensis; upswept moonwort, Botrychium ascendens; scalloped
moonwort, Botrychium crenulatum; Mingan moonwort, Botrychium minganense; watershield,
Brasenia schreberi; Davy's sedge, Carex davyi; mud sedge, Carex limosa; Oregon fireweed,
Epilobium oreganum; Jack's wild buckwheat, Eriogonum luteolum var. saltuarium; American
manna grass, Glyceria grandis; Blandow's bog moss, Helodium blandowii; broad-nerved hump
moss, Meesia uliginosa; Stebbins' phacelia, Phacelia stebbinsii; Whitebark pine, Pinus
albicaulis; Robbins' pondweed, Potamogeton robbinsii; alder buckthorn, Rhamnus alnifolia;
Tahoe yellow cress, Rorippa subumbellata; water bulrush, Schoenoplectus subterminalis; marsh
skullcap, Scutellaria galericulata; slender-leaved pondweed, Stuckenia filiformis ssp.
Alpine;golden violet Viola purpurea ssp. Aurea (as noted in Table 4 below).
The proposed Project Areas were then imported into GIS and a one-mile radius surrounding the
Project Areas delineating the Action Area was searched for recorded occurrences in the BIOS
database (CNDDB 2022; accessed February 2022). Figure 4 represents the locations of the
19 STPUD Pioneer Trail Waterline Replacement Project
proposed project in relation to known occurrences of sensitive species within 1-mile of the
Project Areas.
Figure 5.
Calfornia Natural Diversity
Database
Lake
Tahoe
6
4
2
1
5
5
4
3
47
4
4
0 0.5 1
Miles
Sources: STPUD; CNDDB, USGS. Map date: March 2, 2022
Legend
1-mile Radius of Project
Project Area
Mingan moonwort
North American porcupine
mountain whitefish
northern goshawk
northern leopard frog
willow flycatcher
broad-nerved hump moss
Pioneer Waterline Replacement Project
4
Table 3 Wildlife Species
Scientific
Name
Common
Name
FESA CESA Habitats General Habitat Suitable Habitat in
Project Area?
Danaus
plexippus
Monarch
butterfly
Candidate Lay eggs on
milkweed host plants
(Asclepias spp).
Inhabits variety of habitats that contain
flowering plants for adults to obtain nectar.
Larva feed on milkweed plants.
No flowering plants
in right of way or
road side suitable
for this species.
Empidonax
traillii
willow
flycatcher
None Endangered Meadow & seep |
Riparian scrub |
Riparian woodland |
Wetland
Inhabits extensive thickets of low, dense
willows on edge of wet meadows, ponds, or
backwaters; 2000-8000 ft elevation.
No meadows, seeps
or riparian habitat
in project area.
Gulo gulo California
wolverine
Proposed
Threatened
Threatened Alpine | Alpine dwarf
scrub | Meadow &
seep | Montane
dwarf scrub | North
coast coniferous
forest | Riparian
forest | Subalpine
coniferous forest |
Upper montane
coniferous forest |
Wetland
Found in the north coast mountains and the
Sierra Nevada. Found in a wide variety of
high elevation habitats. Prefers habitats
away from human habitation.
No suitable habitat
present within
project area as
project is within
developed area and
high human
habitation.
Haliaeetus
leucocephalus
bald eagle Delisted Endangered Lower montane
coniferous forest |
Old growth
Ocean shore, lake margins, and rivers for
both nesting and wintering. Most nests
within 1 mile of water.
Project area may be
adjacent to suitable
nesting habitat.
Oncorhynchus
clarkii
henshawi
Lahontan
cutthroat
trout
Threatened None Aquatic | Great Basin
flowing waters
Historically in all accessible cold waters of
the Lahontan Basin in a wide variety of
water temps and conditions.
No SEZ, creeks,
rivers or lake areas
within project area.
Rana sierrae Sierra Nevada
yellow-legged
frog
Endangered Threatened Aquatic Always encountered within a few feet of
water. Tadpoles may require 2 - 4 years to
complete their aquatic development.
(Jennings and Hayes 1994)
No suitable habitat
within project area
as all riparian and
SEZ habitats are
outside project area.
Riparia riparia bank swallow None Threatened Riparian scrub |
Riparian woodland
Colonial nester; nests primarily in riparian
and other lowland habitats west of the
desert.
No suitable habitat
within project area
as all riparian and
SEZ habitats are
outside project area.
STPUD Pioneer Trail Waterline Replacement Project
Source: CNDDB 2021, Zeiner et al 1988
Table 4 Plant Species
Scientific Name Common
Name
CA
Rare
Plant
Rank
CESA FESA Blooming
Period
Habitat Micro Habitat Suitable
Habitat in
Project
Area?
Boechera
tularensis
Tulare
rockcress
1B.3 None None (May)Jun-
Jul(Aug)
Subalpine coniferous forest, Upper
montane coniferous forest
Rocky slopes No rocky
slopes in
project area.
Botrychium
ascendens
upswept
moonwort
2B.3 None None (Jun)Jul-
Aug
Lower montane coniferous forest,
Meadows and seeps
mesic No meadows
and seeps in
project area.
Botrychium
crenulatum
scalloped
moonwort
2B.2 None None Jun-Sep Bogs and fens, Lower montane
coniferous forest, Meadows and
seeps, Marshes and swamps
(freshwater), Upper montane
coniferous forest
No meadows,
seeps, bogs or
fens in project
area.
Botrychium
minganense
Mingan
moonwort
2B.2 None None Jul-Sep Bogs and fens, Lower montane
coniferous forest, Meadows and seeps
(edges), Upper montane coniferous
forest
Mesic No meadows,
seeps, bogs or
fens in project
area.
Brasenia
schreberi
watershield 2B.3 None None Jun-Sep Marshes and swamps (freshwater) No marshes
and swamps
in project
area.
Carex davyi Davy's sedge 1B.3 None None May-Aug Subalpine coniferous forest, Upper
montane coniferous forest
No forest in
project area.
Project area
only contains
disturbed
paved areas.
Carex limosa mud sedge 2B.2 None None Jun-Aug Bogs and fens, Lower montane
coniferous forest, Meadows and
seeps, Marshes and swamps, Upper
montane coniferous forest
No meadows,
seeps, bogs or
fens in project
area.
Epilobium
oreganum
Oregon
fireweed
1B.2 None None Jun-Sep Bogs and fens, Lower montane
coniferous forest, Meadows and
seeps, Upper montane coniferous
forest
mesic No meadows,
seeps, bogs or
fens in project
area.
STPUD Pioneer Trail Waterline Replacement Project
Table 4 Plant Species
Scientific Name Common
Name
CA
Rare
Plant
Rank
CESA FESA Blooming
Period
Habitat Micro Habitat Suitable
Habitat in
Project
Area?
Eriogonum
luteolum var.
saltuarium
Jack's wild
buckwheat
1B.2 None None Jul-Sep Great Basin scrub, Upper montane
coniferous forest
sandy, granitic No forest in
project area.
Project area
only contains
disturbed
paved areas.
Glyceria grandis American
manna grass
2B.3 None None Jun-Aug Bogs and fens, Meadows and seeps,
Marshes and swamps (streambanks
and lake margins)
No meadows,
seeps, bogs or
fens in project
area.
Helodium
blandowii
Blandow's
bog moss
2B.3 None None Meadows and seeps, Subalpine
coniferous forest
Damp soil No meadows
and seeps
within the
project area.
Meesia uliginosa broad-nerved
hump moss
2B.2 None None Jul, Oct Bogs and fens, Meadows and seeps,
Subalpine coniferous forest, Upper
montane coniferous forest
damp soil No meadows,
seeps, bogs or
fens in project
area.
Phacelia
stebbinsii
Stebbins'
phacelia
1B.2 None None May-Jul Cismontane woodland, Lower
montane coniferous forest, Meadows
and seeps
No meadows,
seeps, bogs or
fens in project
area.
Pinus albicaulis Whitebark
pine
None None PT May-Jun Subalpine to timberline zones. No subalpine
or timberline
habitat is
within project
area.
Potamogeton
robbinsii
Robbins'
pondweed
2B.3 None None Jul-Aug Marshes and swamps (deep water,
lakes)
No marshes
and swamps
within the
project area.
Rhamnus alnifolia alder
buckthorn
2B.2 None None May-Jul Lower montane coniferous forest,
Meadows and seeps, Riparian scrub,
Upper montane coniferous forest
No meadows,
seeps,
marshes or
STPUD Pioneer Trail Waterline Replacement Project
Table 4 Plant Species
Scientific Name Common
Name
CA
Rare
Plant
Rank
CESA FESA Blooming
Period
Habitat Micro Habitat Suitable
Habitat in
Project
Area?
swamps in
project area.
Rorippa
subumbellata
Tahoe yellow
cress
1B.1 CE None May-Sep Lower montane coniferous forest,
Meadows and seeps, beaches and lake
margin of Lake Tahoe (Stanton 2015)
decomposed
granitic
beaches
Project area
does not
include
beaches of
Lake Tahoe.
Schoenoplectus
subterminalis
water bulrush 2B.3 None None Jun-
Aug(Sep)
Bogs and fens, Marshes and swamps
(montane lake margins)
No bogs, fens,
marshes, or
swamps in the
project area.
Scutellaria
galericulata
marsh
skullcap
2B.2 None None Jun-Sep Lower montane coniferous forest,
Meadows and seeps (mesic), Marshes
and swamps
No meadows,
seeps,
marshes or
swamps in
project area.
Stuckenia
filiformis ssp.
alpina
slender-
leaved
pondweed
2B.2 None None May-Jul Marshes and swamps (assorted
shallow freshwater)
No marshes or
swamps in
project area.
Viola purpurea
ssp. aurea
golden violet 2B.2 None None Apr-Jun Great Basin scrub, Pinyon and juniper
woodland
sandy No great basin
scrub, pinyon
and juniper
woodland in
project area.
CE: CA Endangered Source: CNPS 2022
PT: Proposed Threatened
As noted in Table 3 and Table 4 above, there are a number of wildlife and plant species that have
known occurrences within the Action Area but no suitable habitat within the Project Area. The
proposed Project Area is within the road right-of-way in the unincorporated area of El Dorado
County. The proposed Project Areas contain existing disturbance in the form of road shoulder,
road base, existing compacted dirt, gravel, landscaping, pavement, existing facilities or a
combination of the above. This heavily human dominated and modified environment present
within the project area is not suitable for many of the wildlife and plant species noted above.
The proposed project is below the elevational range of the whitebark pine and is not known to
occur within the project site. It is my determination there will be no
VIII. SPECIES ACCOUNTS AND EFFECTS ANALYSIS
A. Federally Listed Species (Biological Assessment)
LAHONTAN CUTTHROAT TROUT
Range, Distribution, and Status: The Lahontan cutthroat trout (Oncorynchus clarki henshawi);
LCT) was listed as an endangered species in 1970. In 1975, under the Endangered Species Act of
1973, the LCT was reclassified as threatened to facilitate management and to allow for regulated
angling. In 1995, the U.S. Fish and Wildlife Service (FWS) released its recovery plan for LCT,
encompassing six river basins within LCT historic range.
Historically, the Lahontan cutthroat trout was endemic to the physiographic Lahontan basin of
northern Nevada, eastern California, and southern Oregon (USDI 1995). In California, the
subspecies historically occurred in the streams and lakes of the Lahontan system, on the east side
of the Sierra Nevada. The current distribution is a fraction of the historic distribution. Lake
Tahoe's population was extinct by 1930. In the summer of 2011, the Nevada Department of
Wildlife NDOW planted LCT on Lake Tahoe’s Nevada shore where they are presumed to occur
in the lake waters and tributary creeks. However, competition and inbreeding with introduced
trout species, predation by introduced species, and disease decrease the likelihood that this fish
species occupies these streams (NNHP 2019).
Habitat Requirements and Natural History: Lahontan cutthroat trout are obligatory stream
spawners and spawn from April to July, with eggs being deposited in one fourth to one half inch
gravels within riffles, pocket water, or pool crests (USDI 1995). In the Sierra Nevada, native
Lahontan habitat primarily consists of eastern high mountain meadow streams (over 6,000 feet
elevation). Optimal habitat for Lahontan cutthroat trout is characterized by: clear cold water and
relatively stable summer water temperatures, with an average maximum summer temperature of
less than 43 deg F to 72 deg F. and variations of no more than 37 deg F.; one to one pool to riffle
ratios and a relatively silt free, rocky substrate in the riffle run area; well vegetated, stable stream
26 STPUD Pioneer Trail Waterline Replacement Project
banks; approximately 25 percent of the stream area providing cover; and relatively stable water
flow regimes, with daily fluctuations less than 50 percent of the average annual daily flow
(Hickman and Raleigh 1982).
Potential for Occurrence: Occupied habitat for LCT is present outside the Action Area within
the waters of Lake Tahoe, where LCT is presumed to occur. Lake Tahoe is outside of the defined
work areas surrounding the Project Area. Trout Creek that runs under the project area does not
provide suitable habitat for LCT, due to suitable aquatic organism passage downstream.
Furthermore, the Project would be constructed within existing paved public roads and no
activities will occur within any drainages or have an effect on waters flowing into Trout Creek
due to implementation of BMPs.
Determination: Based on the above assessment, it is my determination there will be no effect to
Lahontan cutthroat trout from Project activities and no further analysis for this species will be
conducted.
SIERRA NEVADA YELLOW-LEGGED FROG
Range, Distribution, and Status: The federal listed endangered Sierra Nevada yellow-legged
frogs (Rana sierrae; SNYLF) historically inhabited ponds, tarns, lakes, and streams from 4,500
to over 12,000 ft. (1370 to over 3650 m) (Stebbins 1985) and was once the most common
amphibian in high elevation aquatic ecosystems of the Sierra Nevada (Bradford et. al. 1993).
This species is endemic to California and a small area of western Nevada and occurs in two
distinct regions – the Sierra Nevada and several mountain ranges of coastal southern California.
Large groups of populations in the northern Sierra Nevada and local populations elsewhere have
since become extinct and have disappeared from 70-90% of its historic range in the bioregion
(Jennings 1994). The Sierra Nevada yellow-legged frog was listed as an Endangered species
under the Endangered Species Act on April 29, 2014.
Habitat Requirements and Natural History: The SNYLF is strongly associated with montane
riparian habitats in lodgepole pine, yellow pine sugar pine, white fir whitebark pine and wet
meadow vegetation types (Zeiner et al. 1988). Typically, SNYLFs prefer well illuminated,
sloping banks of meadow streams, riverbanks, isolated pools, and lake borders with vegetation
that is continuous to the water's edge. In high elevations, breeding occurs between May and
August as soon as the meadows and lakes are free of snow and ice. Sierra Nevada yellow-legged
frogs usually lay their eggs in clusters submerged along stream banks or on emergent vegetation.
Tadpoles and adults of this species overwinter in deep pools with undercut banks that provide
cover. Adults are highly aquatic and are typically associated with near shore areas for
reproduction, cover, foraging, and over-wintering. They are most abundant along lake shores and
low gradient streams with irregular shores and rocks (Mullaly and Cunningham 1956). It is
believed that adult frogs use the deepest sections of lakes for overwintering (Bradford et al.
27 STPUD Pioneer Trail Waterline Replacement Project
1993).
Potential for Occurrence: The current distribution of SNYLFs is well documented and does not
include the Action Area. The nearest known occurrence is a 1935 collection from the Star Lake
area about 6 miles south and east of the Project Areas. Historical occurrences of the species are
also known to have occurred in the Desolation Wilderness and Echo Pass. Furthermore, the
Project would be constructed within existing paved public roads and no activities will occur
within any drainages. Trout Creek that runs under the project area contains suitable habitat for
SNYLF but is outside the project work area. Furthermore, the Project would be constructed
within existing paved public roads and no activities will occur within any drainages or have an
effect on waters flowing into Trout Creek due to implementation of BMPs. There are no known
occurrences of SNYLF in the vicinity of the project.
Determination: Based on the above assessment, it is my determination there will be no effect to
Sierra Nevada yellow-legged frogs or their habitat from Project activities and no further analysis
for this species will be conducted.
Monarch Butterfly
Range, Distribution, and Status: The Monarch butterfly (Danaus plexippus) is a Candidate
species under the ESA (listed 17 December 2020).
The monarch butterfly is a candidate species and not yet listed or proposed for listing. There are
no section 7 requirements for candidate species however a discussion has been provided for this
species below.
Habitat Requirements and Natural History:
Adult monarch butterflies are large and conspicuous, with bright orange wings surrounded by a
black border and covered with black veins. The black border has a double row of white spots,
present on the upper side of the wings. Adult monarchs are sexually dimorphic, with males
having narrower wing venation and scent patches. The bright coloring of a monarch serves as a
warning to predators that eating them can be toxic. (USFWS 2021)
During the breeding season, monarchs lay their eggs on their obligate milkweed host plant
(primarily Asclepias spp.), and larvae emerge after two to five days. Larvae develop through five
larval instars (intervals between molts) over a period of 9 to 18 days, feeding on milkweed and
sequestering toxic chemicals (cardenolides) as a defense against predators. The larva then
pupates into a chrysalis before emerging 6 to 14 days later as an adult butterfly. There are
multiple generations of monarchs produced during the breeding season, with most adult
butterflies living approximately two to five weeks; overwintering adults enter into reproductive
diapause (suspended reproduction) and live six to nine months. (USFWS 2021)
28 STPUD Pioneer Trail Waterline Replacement Project
Potential for Occurrence: There is no potential habitat for monarch within the project area as
work will be performed in the road right-of-way and will not impact any milkweed or flowering
plants.
Determination: Based on the above assessment, it is my determination there will be no effect to
monarch butterflies or their habitat as a result of Project activities and no further analysis will be
conducted for this species.
Whitebark Pine
Range, Distribution, and Status: Whitebark pine (Pinus albicaulis) is a Proposed Threatened
species under the ESA.
This 5-needle white pine has broad distribution at high elevation and timberline zones in
California, Idaho, Nevada, Oregon, Washington, Wyoming, Alberta, and British Colombia
(NatureServe 2013). In California, whitebark pine has been recorded on National Forest System
lands in Six Rivers, Klamath, Modoc, Shasta-Trinity, Lassen, Tahoe, Eldorado, Lake Tahoe
Basin Management Unit, Stanislaus, Sierra, Inyo, and Sequoia National Forests. While the
species has a broad geographic range, precise information regarding the abundance and
distribution of stands is limited.
Habitat Requirements and Natural History:
This species occurs on slopes and ridges near timberline, often with cold windswept exposures,
resulting in geographically isolated stands (Arno and Hoff 1989). In the Sierra Nevada and
Cascade Ranges of California, whitebark pine often occur as pure or nearly pure stands in the
subalpine zone, where it regularly defines the upper tree line and often forms krummholz
cushions. This species generally occurs on cryochrept soils—cold-climate soils lacking
development—that are moderately to poorly draining, nutrient poor and from granitic or basaltic
origins (Fryer 2002). Soils on LTBMU are of andesite, granodiorite, tuff breccia and volcanic
origins (Maloney et al. 2012).
Potential for Occurrence: There is no potential for whitebark pine to occur within the project
area due to the project area being below the elevational range of the species (above 8,000 feet).
The species is not known to occur within or adjacent to the project site.
Determination: Based on the above assessment, it is my determination there will be no effect to
whitebark pine or their habitat as a result of Project activities and no further analysis will be
conducted for this species.
29 STPUD Pioneer Trail Waterline Replacement Project
B. State Sensitive Species (Biological Evaluation)
BALD EAGLE
Range, Distribution, and Status: The bald eagle (Haliaeetus leucocephalus) was a federally
threatened species until it was delisted in 2007 and is a California Endangered species. The bald
eagle’s breeding range in the western U.S. extends along the coast from southern Alaska through
the Pacific Northwest to Northern California, with a few small populations in Arizona and
Colorado. It is estimated that between 100 to 300 bald eagles winter in the Sierra Nevada and at
least 151 to 180 pairs remain year-round to breed. The bald eagle is known to occur on the
LTBMU in both the summer and winter. The wintering population of bald eagles in the Lake
Tahoe Basin is estimated at four to 42 birds (Tahoe Institute for Natural Science 2021 winter
Bald Eagle Survey). A wintering Bald Eagle management area has been established along the
southwest shore of Lake Tahoe and includes Taylor Creek, Cascade Lake, and Emerald Bay.
The eastern boundary of this wintering area along Taylor Creek is located five miles from the
Action Area.
Habitat Requirements and Natural History: Bald eagles generally require large bodies of water
such as lakes or rivers which provide abundant forage and adequate room for foraging. The most
common prey items for bald eagles include fish, waterfowl, jackrabbits, and various types of
carrion (USDI 1986). Habitat in California consists of mid-to-late successional stages of
montane riparian and mixed conifer forests with standing dead trees (snags) and canopy cover
less than 40% (Jackman and Jenkins 2004). Trees selected for nesting in Caliornia are
characteristically one of the largest and tallest in the stand; nest tree heights often exceed 100
feet and average diameter at breast height (DBH) is 43 inches or greater (Jackman and Jenkins
2004). The majority of bald eagle nests are within one mile of water and almost always have an
unobstructed view of a waterbody.
Bald eagles are sensitive to human/recreation disturbance. In Washington, bald eagles have been
found to be adversely affected by recreation that involves both pedestrian traffic and boat use by
adversely affecting feeding activity (Stalmaster and Kaiser 1998). Eagles were displaced in areas
of high human activity and moved to areas of lower human activity. Flush distances were lower
when the disturbance was on land than in the water and lower still if the eagle couldn’t see the
cause of the disturbance. Knight and Knight (1984) found that bald eagles became habituated to
canoes in areas where they were common.
Potential for Occurrence: Although the Action Area includes the shoreline of Lake Tahoe, it is
the most highly urbanized part of the lake. Most of the bald eagles sightings in the Basin have
occurred along undeveloped shorelines. Bald eagles have been identified in the Action Area,
however no nests are known to occur within the Action Area. The proejct areas lie outside the
disturbance zones for this species and project activities will not impact individuals or habiat
30 STPUD Pioneer Trail Waterline Replacement Project
suitability. The Project Area does not support suitable foraging habitat or suitable nesting habitat.
Determination: Based on the above assessment, it is my determination there will be no effect on
bald eagles or their habitat from the Project activities and no further analysis will be conducted
for this species.
BANK SWALLOW
Range, Distribution, and Status: The bank swallow (Riparia riparia) is a California Threatened
species. Bank swallows are neotropical migrants, arriving in California from Central and South
America in late March through early May. During their summer breeding season, bank swallows
are found throughout most of North America from Canada to Texas. In California, there are
approximately 115 breeding colonies, most of which are found along the Sacramento and Feather
Rivers (CDFG 1992).
Habitat Requirements and Natural History: In California, bank swallows occur mainly in
lowland areas along rivers, lakes, oceans, streams, and reservoirs that have vertical banks or
cliffs of fine-textured, sandy soil in which they build nests (CDFG 1992). Each nest site typically
consists of a burrow dug into the bank with a grass-lined nest chamber at the end. Burrows serve
both as nest sites and roosting shelters and play critical roles in defense against terrestrial
predators. Bank swallows almost exclusively eat flying or jumping insects, such as bees, wasps,
ants, butterflies, and moths. They forage in open areas and avoid places with tree cover.
Potential for Occurrence: The Project Area lacks suitable habitat for bank swallows to nest or
forage.The nearest CNDDB occurrence is a bank swallow siting near the Tahoe Keys from 1962
and 1976. Bank swallows are not known to occur in the Project Area.
Determination: Based on the above assessment, it is my determination there will be no effect on
bank swallows or their habitat from the Project activities and no further analysis will be
conducted for this species.
WILLOW FLYCATCHER
Range, Distribution, and Status: Three subspecies of willow flycatcher occur in the Sierra
Nevada: Empidonax traillii brewsteri, E. t. adastus, and E. t. extimus. The willow flycatcher (all
subspecies) is listed as endangered under the CESA; additionally, E. t. extimus (southwestern
willow flycatcher) is listed as endangered under the ESA. The willow flycatcher was identified
in the notice of intent for the Sierra Nevada Forest Plan Amendment as one of seven aquatic,
riparian, and meadow–dependent vertebrate species to have the highest likelihood of being
extirpated from the Sierra Nevada in the near future (USDA 2001, 2004).
31 STPUD Pioneer Trail Waterline Replacement Project
Habitat Requirements and Natural History: Willow flycatchers are migratory songbirds that
nest in shrubby, wet habitats. In the Sierra Nevada, willow flycatchers tend to prefer willow
stands interspersed with open meadow and near standing or running water, often associated with
beaver meadows (Sedgwick 2000). Although willow flycatchers have nested in meadows less
than one acre in size, most nest in much larger meadows. In a study of 125 meadows in the
Sierra Nevada, more than 80 percent of occurrences were in meadows larger than about 20 acres
(Harris, Sanders, and Flett 1987, 1988). In a review of occurrence data for the Sierra Nevada,
occupied meadows averaging approximately 80 acres (USFS 2001).
Important characteristics of meadows suitable for breeding willow flycatchers are a high water
table that results in standing or slow-moving water, or saturated soils (e.g., “swampy”
conditions); abundant cover of riparian deciduous shrubs (particularly willow); and riparian
shrub structure with moderate to high foliar density that is uniform from the ground to the shrub
canopy (Sanders and Flett 1989; Bombay 1999; Green, Bombay, and Morrison 2003). One study
in the Sierra Nevada documented that nests are typically located in willows with about 70
percent foliage cover. Nests are also typically found about 3– 4 feet above the ground and within
about 7 feet from the edge of the clump (Sanders and Flett 1989).
Riparian habitat along streams can also function as suitable habitat for the willow flycatcher,
although this is less common in the Sierra Nevada. Stream channels that are high-gradient,
deeply incised, and lacking a floodplain with a sparse or narrow riparian vegetation corridor are
not suitable for breeding willow flycatchers.
Potential for Occurrence: Willow flycatchers have been known to nest along the Upper Truckee
River at very low densities and with limited reproductive success (CNDDB 2021). The nearest
known CNDDB location is an historic occurrence (1910, 1935) from Trout Creek. In Nevada,
there is only one documented occurrence of Great Basin willow flycatcher from Edgewood
Creek (NNHP 2019). Willow flycatchers have not been identified in the Action Area, and the
Project Areas do not contain suitable nesting habitat.
Determination: Based on the above assessment, it is my determination there will be no effect on
willow flycatchers or their habitat from Project activities and no further analysis will be
conducted for this species.
TAHOE YELLOW CRESS
Range, Distribution and Status: Tahoe yellow cress (Rorippa subumbellata; TYC) is
Endangered in California, Critically Endangered in Nevada, and is a TRPA Sensitive species. It
is a perennial plant in the mustard family (Brassicaceae) that grows low to the ground and has
yellow flowers and fleshy leaves. TYC is found only on the shoreline of Lake Tahoe in
California and Nevada, and is the only species in the Sierra Nevada that is restricted to a single
32 STPUD Pioneer Trail Waterline Replacement Project
lake (CDFW 2019). There are 50 known occurrences around Lake Tahoe, some of which have
been tracked since 1979 (Stanton et al. 2015).
Habitat Requirements and Natural History: TYC is found only on the shoreline of Lake Tahoe
below the high waterline of 6,229 feet (CDFW 2019). TYC site occupancy fluctuates with lake
water levels, which are related to long-term climate trends and regulation of Tahoe’s dam at
Tahoe City (Stanton et al. 2015). During high lake levels, the number of occupied sites is lower
because less beach habitat is available due to the geometry of the filling basin (Stanton et al.
2015).
Potential for Occurrence: The shoreline of Lake Tahoe is outside of the defined workzones of
the Project Area.
Determination: Based on the above assessment, it is my determination there will be no effect on
Tahoe yellow cress or their habitat from Project activities and no further analysis will be
conducted for this species.
Based on the information provided in Table 3 and Table 4 above the following are the State
listed species that have the potential to occur within the Action Area but do not have suitable
habitat with the Project Area: Tulare rockcress, Boechera tularensis; upswept moonwort,
Botrychium ascendens; scalloped moonwort, Botrychium crenulatum; Mingan moonwort,
Botrychium minganense; watershield, Brasenia schreberi; Davy's sedge, Carex davyi; mud
sedge, Carex limosa; Oregon fireweed, Epilobium oreganum; Jack's wild buckwheat, Eriogonum
luteolum var. saltuarium; American manna grass, Glyceria grandis; Blandow's bog moss,
Helodium blandowii; broad-nerved hump moss, Meesia uliginosa; Stebbins' phacelia, Phacelia
stebbinsii; Robbins' pondweed, Potamogeton robbinsii; alder buckthorn, Rhamnus alnifolia;
Tahoe yellow cress, Rorippa subumbellata; water bulrush, Schoenoplectus subterminalis; marsh
skullcap, Scutellaria galericulata; slender-leaved pondweed, Stuckenia filiformis ssp.
Alpine;golden violet Viola purpurea ssp. Aurea. The proposed project will not result in any
impacts to these species as none are known to occur within the Project Area, nor will the project
impact habitat or individual of these species.
It is my determination there will be no effect to the following State listed species as a result of
project implementation: Tulare rockcress, Boechera tularensis; upswept moonwort, Botrychium
ascendens; scalloped moonwort, Botrychium crenulatum; Mingan moonwort, Botrychium
minganense; watershield, Brasenia schreberi; Davy's sedge, Carex davyi; mud sedge, Carex
limosa; Oregon fireweed, Epilobium oreganum; Jack's wild buckwheat, Eriogonum luteolum
var. saltuarium; American manna grass, Glyceria grandis; Blandow's bog moss, Helodium
blandowii; broad-nerved hump moss, Meesia uliginosa; Stebbins' phacelia, Phacelia stebbinsii;
Robbins' pondweed, Potamogeton robbinsii; alder buckthorn, Rhamnus alnifolia; Tahoe yellow
cress, Rorippa subumbellata; water bulrush, Schoenoplectus subterminalis; marsh skullcap,
33 STPUD Pioneer Trail Waterline Replacement Project
Scutellaria galericulata; slender-leaved pondweed, Stuckenia filiformis ssp. Alpine;golden violet
Viola purpurea ssp. Aurea.
XI. LITERATURE CITED
Bombay, H. E., T. M. Ritter, and B. E. Valentine. 2003. A Willow Flycatcher Protocol for
California. Available: <http://www.dfg.ca.gov/wildlife/nongame/survey_monitor.html>.
Accessed 18 September 2018.
Bombay, H. L. 1999. Scale Perspectives in Habitat Selection and Reproductive Success for
Willow Flycatchers (Empidonax traillii) in the Central Sierra Nevada, California. Master’s
thesis, California State University, Sacramento. Sacramento, CA.
Bradford, D.F., S.D. Cooper, T.M. Jenkins, Jr., K. Kratz, O. Sarnelle, and A.D. Brown.
1998. Influences of natural acidity and introduced fish on faunal assemblages in California alpine
lakes. Can. J. of Fish. Aquat. Sci. 55:2478-2491.
California Native Plant Society. 2021. Inventory of Rare and Endangered Plants. California
Native Plant Society, Sacramento, CA. Accessed from http://www.cnps.org/inventory.
California Native Plant Society, Rare Plant Program. 2021. Inventory of Rare and Endangered
Plants of California (online edition, v8-03 0.39). Website http://www.rareplants.cnps.org
[accessed 26 February 2021].
California Natural Diversity Database (CNDDB) 2021. RareFind Version 5. State of California
Department of Fish and Wildlife (CDFW).
Cameron, S. A., J. D. Lozier, J. P. Strange, J. B. Koch, N. Cordes, L. F. Solter, and T. L.
Griswold. 2011. Patterns of widespread decline in North American bumble bees. Proceedings of
the National Academy of Sciences (USA) 108(2): 662-667.
Green, G. A., H. L. Bombay, and M. L. Morrison. 2003. Conservation Assessment of the Willow
Flycatcher in the Sierra Nevada. Unpublished report.
Harris, J. H., S. D. Sanders, and M. A. Flett. 1987. Willow Flycatcher Surveys in the Sierra
Nevada. Western Birds 18:27–36.
Harris, J. H., S. D. Sanders, and M. A. Flett. 1988. The Status and Distribution of the Willow
Flycatcher (Empidonax traillii) in the Sierra Nevada. Wildlife Management Branch
Administrative Report 88-1. Sacramento: California Department of Fish and Game.
34 STPUD Pioneer Trail Waterline Replacement Project
Hickman T and R.F Raleigh, 1982. Habitat suitability index models: cutthroat trout. USDI Fish
and Wildlife Service. FWS/OBS-82/10.5 38 pp.
Henry, M., Beguin, M., Requier, F., Rollin, O., Odoux, J.‐F., Aupinel, P. et al. (2012) A common
pesticide decreases foraging success and survival in honey bees. Science, 336, 348– 350.
Hopwood J., M. Vaughan, M. Shepherd, E. Mader, and S. H. Black. 2012. Are Neocicotinoids
Killing Bees? A review of research into the effects of neonicotinoid insecticides on bees, with
recommendation for action. Tech. rep., The Xerces Society.
http://www.xerces.org/neonicotinoids-and-bees/.
Jackman, R. E. and J. M. Jenkins, 2004, Protocol for Evaluating Bald Eagle Habitat and
Populations in California. USFWS, Endangered Species Division. Sacramento, CA.
Jennings, M.R. and M.P. Hayes. 1994. Amphibian and Reptile Species of Special
Concern in California: Final Report to California Department of Fish and Game. Rancho
Cordova, CA.
Koch, J. B., and J. Strange. 2012. The status of Bombus occidentalis and B. moderatus in Alaska
with special focus on Nosema bombi incidence. Northwest Science 86(3):212-220.
Knight, R., & Skagen, S. (1988). Agonistic Asymmetries and the Foraging Ecology of Bald
Eagles. Ecology, 69(4), 1188-1194. doi:10.2307/1941273
Mullaly, D.P., and J.D. Cunningham. 1956. Ecological relations of Rana muscosa at
high elevations in the Sierra Nevada. Herpetologica 12:189-198.
Nevada Natural Heritage Program. 2022. Species information for the Lahontan cutthroat trout
available at: http://heritage.nv.gov/taxon_detail/15710
Sanders, S. D., and M. A. Flett. 1989. Ecology of a Sierra Nevada Population of Willow
Flycatchers (Epidonax trailii) 1986–1987. Wildlife Management Branch Administrative Report
88-3. Sacramento: California Department of Fish and Game.
Stalmaster, M., & Kaiser, J. (1998). Effects of Recreational Activity on Wintering Bald Eagles.
Wildlife Monographs, (137), 3-46.
Stanton, A.E. and the Tahoe yellow cress Adaptive Management Working Group and Executive
Committee. 2015. Conservation strategy for Tahoe yellow cress (Rorippa subumbellata).
35 STPUD Pioneer Trail Waterline Replacement Project
USDA Forest Service Pacific Southwest Research Station, Albany, California. 130 pp. +
appendices.
Stebbins, R.C. 1985. A Field Guide to Western Reptiles and Amphibians. Second
Edition, revised. Houghton Mifflin Company, Boston, Mass.
Thorp, R. W., and M. D. Shepherd. 2005. Profile: Subgenus Bombus. In Shepherd, M. D., D. M.
Vaughan, and S. H. Black (Eds). Red List of Pollinator Insects of North America. CD-ROM
Version 1 (May 2005). Portland, OR: The Xerces Society for Invertebrate Conservation.
USDI Fish and Wildlife Service. 1973. Endangered Species Act, 16 U.S.C. 1531-1544.
USDI Fish and Wildlife Service. 1986. Recovery Plan for the Pacific Bald Eagle. U.S. Fish and
Wildlife Service, Portland, Oregon. 160 pp (Page 18).
Zeiner, D.C., W.F. Laudenslayer, Jr., and K.E. Mayer. 1988. California’s Wildlife. Volume I –
Amphibians and Reptiles. California Department of Fish and Game, Sacramento, California. 272
pp.
36 STPUD Pioneer Trail Waterline Replacement Project
Appendix A – Preliminary Design Plan Details
SCO
OF
SHEETS
DATE:
SCALE:
DRAWN:
DESIGN:
AS BUILT:
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SHEET TITLE
G1 COVER
G2 GENERAL NOTES
G3 STAGING AREA
P1 PLAN SHEET - STA 0+00 TO 10+00
P2 PLAN SHEET - STA 10+00 TO 20+00
P3 PLAN SHEET - STA 20+00 TO 30+00
P4 PLAN SHEET - STA 30+00 TO 40+00
P5 PLAN SHEET - STA 40+00 TO 50+00
P6 PLAN SHEET - STA 50+00 TO 60+00
P7 PLAN SHEET - STA 60+00 TO 70+00
P8 PLAN SHEET - STA 70+00 TO 80+00
P9 PLAN SHEET - STA 80+00 TO 90+00
D1 DETAILS
D2 DETAILS
D3 DETAILS
GE1 ELECTRICAL LEGEND
GE2 ELECTRICAL ABBREVIATIONS
GE3 SCHEMATIC SYMBOLS
E1 ELECTRICAL & INSTRUMENTATION
E2 ELECTRICAL & INSTRUMENTATION
86
,17(567$7(
86
86
86
86
N
1 inch = ft.
GRAPHIC SCALE
500
PROJECT
LOCATION
US FOREST SERVICE
APN 080-050-002-000
US FOREST SERVICE
APN 080-030-002-000
CALIFORNIA TAHOE
CONSERVANCY
APN 080-010-015-000
US FOREST SERVICE
APN 080-050-014-000
PI
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JICARILLA DR.
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US FOREST SERVICE
APN 080-030-002-000
GOLDEN BEAR TRAIL KOKANEE TRAIL
CITY OF SOUTH LAKE
TAHOE
APN 080-010-013-000US FOREST SERVICE
APN 080-010-012-000
MONTGOMERY ESTATES
UNIT #9 HOMES
APN 080-191-001-000
MONTGOMERY ESTATES
UNIT #9 HOMES
APN 080-192-029-000
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90° BEND (MJXMJ)
STA:0+52.30
OFF:0.00'
CONNECT TO EXISTING
WATER MAIN PER DETAIL 1
PROVIDE 16" DUCTILE
IRON PIPE REMOVE EXISTING
TREE
REMOVE EXISTING
TREE
REMOVE EXISTING
TREE
BEGIN ALIGNMENT - PT WATERLINE
NORTHING=2092002.45
EASTING=7138935.59
DEFLECT PIPE AT JOINT
STA:3+48.74
OFF:0.00'L FIRE HYDRANT
STA:3+77.00
OFF:8.50'R
EXISTING 8" STEEL
WATER MAIN
U.S. FOREST SERVICE
APN 080-050-014-000
U.S. FOREST SERVICE
APN 025-161-002-000
U.S. FOREST SERVICE
APN 080-050-014-000
2073 SUSQUEHANA DR.
2070 SUSQUEHANA DR.
8"
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APN 080-050-014-000
D2
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D2
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VALVE ON HYDRANT TEED2
5
2"
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PROFILE PT Waterline 0+00 to 10+00
ϲϰϬϬ
ϲϰϬϱ
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ϲϰϮϱ
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ϲϰϰϱ
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ϲϰϭϱ
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ϲϰϮϱ
ϲϰϯϬ
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ϬнϬϬ ϬнϱϬ ϭнϬϬ ϭнϱϬ ϮнϬϬ ϮнϱϬ ϯнϬϬ ϯнϱϬ ϰнϬϬ ϰнϱϬ ϱнϬϬ ϱнϱϬ ϲнϬϬ ϲнϱϬ ϳнϬϬ ϳнϱϬ ϴнϬϬ ϴнϱϬ ϵнϬϬ ϵнϱϬ ϭϬнϬϬ
90° BEND
STA:0+52.91
42" MIN COVER, TYP
FIRE HYDRANT
STA:3+77.00
ELEV:6448.28
EXISTING GRADE
D2
6
PROPOSED 16" DIPD2
1,2
8" BEND (MJxMJ)
PROPOSED 8" C900
EXISTING 8" STEEL
PROPOSED 8" C900
16"x8" REDUCER
(FLxFL)
8" BEND (FLxMJ)
3'
M
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3'
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VALVE (FLxMJ)
PROPOSED 16" DIP
TRANSITION COUPLER
PER DETAIL D1
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9
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GRAPHIC SCALE
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NOTES:
1.ACTUAL LOCATION AND DEPTH OF EXISTING UTILITIES SHOWN ON PLANS ARE
APPROXIMATE. CONTRACTOR SHALL POTHOLE AND VERIFY EXISTING UTILITIES
PRIOR TO CONSTRUCTION.
2.CONTRACTOR SHALL PROVIDE SAMPLE PORTS PER DETAIL 2 OF SHEET D3 AT A
MINIMUM OF EVERY 600' FOR PIPELINE DISINFECTION AND TESTING.
3.CONTRACTOR SHALL PROTECT EXISTING CURB AND GUTTER THROUGHOUT
CONSTRUCTION. ANY CURB AND GUTTER THAT IS REMOVED OR DAMAGED DURING
CONSTRUCTION SHALL BE REPLACED PER EL DORADO COUNTY STANDARDS AS
SHOWN BY DETAIL 3 OF SHEET D3.
4.CONTRACTOR SHALL COMPLY WITH CALIFORNIA DEPARTMENT OF DRINKING WATER
STANDARDS FOR INSTALLATION OF NEW WATER MAINS. A FULL UNCUT STICK OF
PIPE SHALL BE CENTERED ON ALL SEWER AND STORM DRAIN CROSSINGS.'(7$,/
6&$/(
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10+00
11+00
12+00
13+00
14+00 15+00 16+00 17+00
18+00
19+00
20+00
POTENTIAL
STAGING AREA
PROPOSED 16" DIP
CONNECT TO EXISTING
WATER MAIN PER DETAIL 1
PROPOSED 8" C900
COUNTY ROW
ABOVE GROUND
PRV STATION #1.
90° BEND
STA:13+93.01
OFF:2.30'L
REMOVE EXISTING G5
BOX AND ABANDON
VALVE IN PLACE
ABANDON EXISTING
8" WATER MAIN AND
1" WATER SERVICE
FIRE HYDRANT
STA:11+75.00
OFF:17.00'R
REMOVE EXISTING TREE
PROVIDE 16" DUCTILE
IRON PIPE
1772 PIONEER TRAIL
1788 PIONEER TRAIL
2015 JICARILLA DR.1968 JICARILLA
1794 PIONEER TRAIL U.S. FOREST SERVICE
APN 080-050-002-000
1797 PIONEER TRAIL
U.S. FOREST SERVICE
APN 080-050-002-000
U.S. FOREST SERVICE
APN 080-050-014-000
8"
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BU
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1784 PIONEER TRAIL
U.S. FOREST SERVICE
APN 080-050-014-000
PROPERTY LINE, TYP
EXISTING DIRT ROAD. MAINTAIN ACCESS
THROUGHOUT CONSTRUCTION.
PROVIDE SINGLE 34" WATER
SERVICE AND CONNECT TO
EXISTING METERS (x2)
PROVIDE SINGLE 34" WATER
SERVICE AND CONNECT TO
EXISTING METERS (x2)
PROVIDE SINGLE 34" WATER
SERVICE AND CONNECT TO
EXISTING METER
D2
1,2
D2
1,2
D1
1
D2
1,2
D3
1
D3
1
D3
1
D2
6
D2
5 16" INLINE BUTTERFLY
VALVE ON HYDRANT TEE
W
W
W W
PROFILE PT Waterline 10+00 to 20+00
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ϲϯϲϱ
ϲϯϳϬ
ϲϯϳϱ
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ϲϯϴϱ
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ϲϰϭϬ
ϲϰϭϱ
ϭϬнϬϬ ϭϬнϱϬ ϭϭнϬϬ ϭϭнϱϬ ϭϮнϬϬ ϭϮнϱϬ ϭϯнϬϬ ϭϯнϱϬ ϭϰнϬϬ ϭϰнϱϬ ϭϱнϬϬ ϭϱнϱϬ ϭϲнϬϬ ϭϲнϱϬ ϭϳнϬϬ ϭϳнϱϬ ϭϴнϬϬ ϭϴнϱϬ ϭϵнϬϬ ϭϵнϱϬ ϮϬнϬϬ
FIRE HYDRANT
STA:11+70.44
ELEV:6403.39
42" MIN COVER, TYP
90° BEND
STA:17+55.21 90° BEND
STA:17+67.49
EXISTING GRADE
D2
6
ABOVE GROUND
PRV STATION #1
PROPOSED 16" DIPD2
1,2
8" BEND (MJxMJ)
PROPOSED 8" C900
PROPOSED 8" C900
8" BEND (FLxMJ)
3'
M
I
N
3'
M
I
N
8" GATE VALVE
(FLxMJ)
TRANSITION COUPLER
PER DETAIL D1
3
PROPOSED 8" C900
EXISTING 8" STEEL
OF
SHEETS
DATE:
SCALE:
DRAWN:
DESIGN:
AS BUILT:
PR
E
L
I
M
I
N
A
R
Y
-
N
O
T
F
O
R
C
O
N
S
T
R
U
C
T
I
O
N
10-11-2021
AS SHOWN
AZ
AC/AZ
PI
O
N
E
E
R
T
R
A
I
L
W
A
T
E
R
L
I
N
E
IM
P
R
O
V
E
M
E
N
T
S
P
R
O
J
E
C
T
22
ST
A
1
0
+
0
0
T
O
2
0
+
0
0
P2
5
3/$1
6&$/(
352),/(
6&$/(
+
9
N
1 inch = ft.
GRAPHIC SCALE
40
MA
T
C
H
L
I
N
E
1
0
+
0
0
(
S
E
E
S
H
E
E
T
P
1
)
M
A
T
C
H
L
I
N
E
2
0
+
0
0
(
S
E
E
S
H
E
E
T
P
3
)
NOTES:
1.ACTUAL LOCATION AND DEPTH OF EXISTING UTILITIES SHOWN ON PLANS ARE
APPROXIMATE. CONTRACTOR SHALL POTHOLE AND VERIFY EXISTING UTILITIES
PRIOR TO CONSTRUCTION.
2.CONTRACTOR SHALL PROVIDE SAMPLE PORTS PER DETAIL 2 OF SHEET D3 AT A
MINIMUM OF EVERY 600' FOR PIPELINE DISINFECTION AND TESTING.
3.CONTRACTOR SHALL PROTECT EXISTING CURB AND GUTTER THROUGHOUT
CONSTRUCTION. ANY CURB AND GUTTER THAT IS REMOVED OR DAMAGED DURING
CONSTRUCTION SHALL BE REPLACED PER EL DORADO COUNTY STANDARDS AS
SHOWN BY DETAIL 3 OF SHEET D3.
4.CONTRACTOR SHALL COMPLY WITH CALIFORNIA DEPARTMENT OF DRINKING WATER
STANDARDS FOR INSTALLATION OF NEW WATER MAINS. A FULL UNCUT STICK OF
PIPE SHALL BE CENTERED ON ALL SEWER AND STORM DRAIN CROSSINGS.
'(7$,/
6&$/(
T
R
E
E
S
T
R
E
E
S
T
R
E
E
S
T
R
E
E
S
T
R
E
E
S
T
R
E
E
S
TRE
E
S
T
R
E
E
S
20+00
21+00
22+00
23+00
24+00 25+00 26+00
27+00
28+00
29+00
30+00
FIRE HYDRANT
STA:29+86.00
OFF:19.00'R
FIRE HYDRANT
STA:21+60.00
OFF:15.00'R PROPOSED 16" DIP
PROTECT EXISTING
GUARDRAIL AND SIGN
THROUGHOUT CONSTRUCTION
U.S. FOREST SERVICE
APN 080-050-002-000
U.S. FOREST SERVICE
APN 080-050-002-000
U.S. FOREST SERVICE
APN 080-050-002-000
8"
S
T
E
E
L
G
A
S
BU
R
I
E
D
C
O
M
M
D2
1,2
D2
6
D2
6
D2
1,2
COUNTY ROW
D2
516" INLINE BUTTERFLY
VALVE ON HYDRANT TEE
D2
5 16" INLINE BUTTERFLY
VALVE ON HYDRANT TEE
PROFILE Alignment - PT Waterline 20+00 to 30+00
ϲϯϰϱ
ϲϯϱϬ
ϲϯϱϱ
ϲϯϲϬ
ϲϯϲϱ
ϲϯϳϬ
ϲϯϳϱ
ϲϯϴϬ
ϲϯϰϱ
ϲϯϱϬ
ϲϯϱϱ
ϲϯϲϬ
ϲϯϲϱ
ϲϯϳϬ
ϲϯϳϱ
ϲϯϴϬ
ϮϬнϬϬ ϮϬнϱϬ ϮϭнϬϬ ϮϭнϱϬ ϮϮнϬϬ ϮϮнϱϬ ϮϯнϬϬ ϮϯнϱϬ ϮϰнϬϬ ϮϰнϱϬ ϮϱнϬϬ ϮϱнϱϬ ϮϲнϬϬ ϮϲнϱϬ ϮϳнϬϬ ϮϳнϱϬ ϮϴнϬϬ ϮϴнϱϬ ϮϵнϬϬ ϮϵнϱϬ ϯϬнϬϬ
42" MIN COVER, TYP
FIRE HYDRANT
STA:20+72.00
ELEV:6373.85
FIRE HYDRANT
STA:29+86.00
ELEV:6358.67
EXISTING GRADE
D2
6
D2
6
PROPOSED 16" DIPD2
1,2
OF
SHEETS
DATE:
SCALE:
DRAWN:
DESIGN:
AS BUILT:
PR
E
L
I
M
I
N
A
R
Y
-
N
O
T
F
O
R
C
O
N
S
T
R
U
C
T
I
O
N
10-11-2021
AS SHOWN
AZ
AC/AZ
PI
O
N
E
E
R
T
R
A
I
L
W
A
T
E
R
L
I
N
E
IM
P
R
O
V
E
M
E
N
T
S
P
R
O
J
E
C
T
22
ST
A
2
0
+
0
0
T
O
3
0
+
0
0
P3
6
3/$1
6&$/(
352),/(
6&$/(
+
9
M
A
T
C
H
L
I
N
E
3
0
+
0
0
(
S
E
E
S
H
E
E
T
P
4
)
MA
T
C
H
L
I
N
E
2
0
+
0
0
(
S
E
E
S
H
E
E
T
P
3
)
N
1 inch = ft.
GRAPHIC SCALE
40
NOTES:
1.ACTUAL LOCATION AND DEPTH OF EXISTING UTILITIES SHOWN ON PLANS ARE
APPROXIMATE. CONTRACTOR SHALL POTHOLE AND VERIFY EXISTING UTILITIES
PRIOR TO CONSTRUCTION.
2.CONTRACTOR SHALL PROVIDE SAMPLE PORTS PER DETAIL 2 OF SHEET D3 AT A
MINIMUM OF EVERY 600' FOR PIPELINE DISINFECTION AND TESTING.
3.CONTRACTOR SHALL PROTECT EXISTING CURB AND GUTTER THROUGHOUT
CONSTRUCTION. ANY CURB AND GUTTER THAT IS REMOVED OR DAMAGED DURING
CONSTRUCTION SHALL BE REPLACED PER EL DORADO COUNTY STANDARDS AS
SHOWN BY DETAIL 3 OF SHEET D3.
4.CONTRACTOR SHALL COMPLY WITH CALIFORNIA DEPARTMENT OF DRINKING WATER
STANDARDS FOR INSTALLATION OF NEW WATER MAINS. A FULL UNCUT STICK OF
PIPE SHALL BE CENTERED ON ALL SEWER AND STORM DRAIN CROSSINGS.
30+00 31+00 32+00 33+00 34+00 35+00 36+00
37+00
38+00
39+00
40+00
DEFLECT PIPE AT JOINT
STA:35+66.05
OFF:0.00'
DEFLECT PIPE AT JOINT
STA:39+60.05
OFF:0.00'FIRE HYDRANT
STA:38+02.00
OFF:10.00'R
DEFLECT PIPE AT JOINT
STA:32+30.94
OFF:0.00'
PROPOSED 16" DIP
POTENTIAL STAGING AREA
U.S. FOREST SERVICE
APN 080-030-002-000
U.S. FOREST SERVICE
APN 080-030-002-000
U.S. FOREST SERVICE
APN 080-050-002-000
U.S. FOREST SERVICE
APN 080-050-002-000
PROPERTY LINE, TYP
EXISTING DIRT ROAD. MAINTAIN ACCESS
THROUGHOUT CONSTRUCTION?
8"
S
T
E
E
L
G
A
S
BU
R
I
E
D
C
O
M
M
COUNTY ROW
D2
516" INLINE BUTTERFLY
VALVE ON HYDRANT TEE
D2
6D2
1,2
PROFILE Alignment - PT Waterline 30+00 to 40+00
ϲϯϯϱ
ϲϯϰϬ
ϲϯϰϱ
ϲϯϱϬ
ϲϯϱϱ
ϲϯϲϬ
ϲϯϲϱ
ϲϯϳϬ
ϲϯϯϱ
ϲϯϰϬ
ϲϯϰϱ
ϲϯϱϬ
ϲϯϱϱ
ϲϯϲϬ
ϲϯϲϱ
ϲϯϳϬ
ϯϬнϬϬ ϯϬнϱϬ ϯϭнϬϬ ϯϭнϱϬ ϯϮнϬϬ ϯϮнϱϬ ϯϯнϬϬ ϯϯнϱϬ ϯϰнϬϬ ϯϰнϱϬ ϯϱнϬϬ ϯϱнϱϬ ϯϲнϬϬ ϯϲнϱϬ ϯϳнϬϬ ϯϳнϱϬ ϯϴнϬϬ ϯϴнϱϬ ϯϵнϬϬ ϯϵнϱϬ ϰϬнϬϬ
42" MIN COVER, TYP
FIRE HYDRANT
STA:38+02.00
ELEV:6355.26
EXISTING GRADE
D2
6
PROPOSED 16" DIPD2
1,2
OF
SHEETS
DATE:
SCALE:
DRAWN:
DESIGN:
AS BUILT:
PR
E
L
I
M
I
N
A
R
Y
-
N
O
T
F
O
R
C
O
N
S
T
R
U
C
T
I
O
N
10-11-2021
AS SHOWN
AZ
AC/AZ
PI
O
N
E
E
R
T
R
A
I
L
W
A
T
E
R
L
I
N
E
IM
P
R
O
V
E
M
E
N
T
S
P
R
O
J
E
C
T
22
ST
A
3
0
+
0
0
T
O
4
0
+
0
0
P4
7
3/$1
6&$/(
352),/(
6&$/(
+
9
MA
T
C
H
L
I
N
E
4
0
+
0
0
(
S
E
E
S
H
E
E
T
P
5
)
N
1 inch = ft.
GRAPHIC SCALE
40
MA
T
C
H
L
I
N
E
3
0
+
0
0
(
S
E
E
S
H
E
E
T
P
3
)
NOTES:
1.ACTUAL LOCATION AND DEPTH OF EXISTING UTILITIES SHOWN ON PLANS ARE
APPROXIMATE. CONTRACTOR SHALL POTHOLE AND VERIFY EXISTING UTILITIES
PRIOR TO CONSTRUCTION.
2.CONTRACTOR SHALL PROVIDE SAMPLE PORTS PER DETAIL 2 OF SHEET D3 AT A
MINIMUM OF EVERY 600' FOR PIPELINE DISINFECTION AND TESTING.
3.CONTRACTOR SHALL PROTECT EXISTING CURB AND GUTTER THROUGHOUT
CONSTRUCTION. ANY CURB AND GUTTER THAT IS REMOVED OR DAMAGED DURING
CONSTRUCTION SHALL BE REPLACED PER EL DORADO COUNTY STANDARDS AS
SHOWN BY DETAIL 3 OF SHEET D3.
4.CONTRACTOR SHALL COMPLY WITH CALIFORNIA DEPARTMENT OF DRINKING WATER
STANDARDS FOR INSTALLATION OF NEW WATER MAINS. A FULL UNCUT STICK OF
PIPE SHALL BE CENTERED ON ALL SEWER AND STORM DRAIN CROSSINGS.
T
R
E
E
S
T
R
E
E
S
T
R
E
E
S
T
R
E
E
S
TREES
3,21((575$,/
40+00
41+00
42+00
43+00
44+00
45+00
46+00
47+00
48+00 49+00
50+00
FIRE HYDRANT
STA:46+65.00
OFF:19.00'R
PROPOSED 16" DIP
REMOVE EXISTING
TREE DEFLECT PIPE AT JOINT
STA:43+50.23
OFF:0.00'
PROTECT EXISTING
SIGN THROUGHOUT
CONSTRUCTION
U.S. FOREST SERVICE
APN 080-030-002-000
U.S. FOREST SERVICE
APN 080-030-002-000
8"
S
T
E
E
L
G
A
S
BU
R
I
E
D
C
O
M
M
PROTECT EXISTING
SIGN THROUGHOUT
CONSTRUCTION
COUNTY ROW
D2
516" INLINE BUTTERFLY
VALVE ON HYDRANT TEE
D2
6
D2
1,2
PROFILE Alignment - PT Waterline 40+00 to 50+00
ϲϯϭϱ
ϲϯϮϬ
ϲϯϮϱ
ϲϯϯϬ
ϲϯϯϱ
ϲϯϰϬ
ϲϯϰϱ
ϲϯϱϬ
ϲϯϱϱ
ϲϯϲϬ
ϲϯϭϱ
ϲϯϮϬ
ϲϯϮϱ
ϲϯϯϬ
ϲϯϯϱ
ϲϯϰϬ
ϲϯϰϱ
ϲϯϱϬ
ϲϯϱϱ
ϲϯϲϬ
ϰϬнϬϬ ϰϬнϱϬ ϰϭнϬϬ ϰϭнϱϬ ϰϮнϬϬ ϰϮнϱϬ ϰϯнϬϬ ϰϯнϱϬ ϰϰнϬϬ ϰϰнϱϬ ϰϱнϬϬ ϰϱнϱϬ ϰϲнϬϬ ϰϲнϱϬ ϰϳнϬϬ ϰϳнϱϬ ϰϴнϬϬ ϰϴнϱϬ ϰϵнϬϬ ϰϵнϱϬ ϱϬнϬϬ
42" MIN COVER, TYP
FIRE HYDRANT
STA:46+08.00
ELEV:6346.48
EXISTING GRADE
D2
6
PROPOSED 16" DIPD2
1,2
OF
SHEETS
DATE:
SCALE:
DRAWN:
DESIGN:
AS BUILT:
PR
E
L
I
M
I
N
A
R
Y
-
N
O
T
F
O
R
C
O
N
S
T
R
U
C
T
I
O
N
10-11-2021
AS SHOWN
AZ
AC/AZ
PI
O
N
E
E
R
T
R
A
I
L
W
A
T
E
R
L
I
N
E
IM
P
R
O
V
E
M
E
N
T
S
P
R
O
J
E
C
T
22
ST
A
4
0
+
0
0
T
O
5
0
+
0
0
P5
8
3/$1
6&$/(
352),/(
6&$/(
+
9
M
A
T
C
H
L
I
N
E
4
0
+
0
0
(
S
E
E
S
H
E
E
T
P
5
)
N
1 inch = ft.
GRAPHIC SCALE
40
MA
T
C
H
L
I
N
E
4
0
+
0
0
(
S
E
E
S
H
E
E
T
P
5
)
NOTES:
1.ACTUAL LOCATION AND DEPTH OF EXISTING UTILITIES SHOWN ON PLANS ARE
APPROXIMATE. CONTRACTOR SHALL POTHOLE AND VERIFY EXISTING UTILITIES
PRIOR TO CONSTRUCTION.
2.CONTRACTOR SHALL PROVIDE SAMPLE PORTS PER DETAIL 2 OF SHEET D3 AT A
MINIMUM OF EVERY 600' FOR PIPELINE DISINFECTION AND TESTING.
3.CONTRACTOR SHALL PROTECT EXISTING CURB AND GUTTER THROUGHOUT
CONSTRUCTION. ANY CURB AND GUTTER THAT IS REMOVED OR DAMAGED DURING
CONSTRUCTION SHALL BE REPLACED PER EL DORADO COUNTY STANDARDS AS
SHOWN BY DETAIL 3 OF SHEET D3.
4.CONTRACTOR SHALL COMPLY WITH CALIFORNIA DEPARTMENT OF DRINKING WATER
STANDARDS FOR INSTALLATION OF NEW WATER MAINS. A FULL UNCUT STICK OF
PIPE SHALL BE CENTERED ON ALL SEWER AND STORM DRAIN CROSSINGS.
CB
S
S
E
50+00 51+00
52+00 53+00 54+00 55+00 56+00 57+00 58+00 59+00 60+00
22.5° BEND
STA:51+57.48
OFF:0.00'
22.5° BEND
STA:51+85.98
OFF:0.00'
FIRE HYDRANT
STA:56+59.99
OFF:38.00'L
PROPOSED 16" DIP
U.S. FOREST SERVICE
APN 080-030-002-000
U.S. FOREST SERVICE
APN 080-030-002-000
8"
S
T
E
E
L
G
A
S
BU
R
I
E
D
C
O
M
M
COUNTY ROW
8"
S
E
W
E
R
24
"
S
T
O
R
M
D
R
A
I
N
36
"
S
T
O
R
M
D
R
A
I
N
BU
R
I
E
D
C
O
M
M
EL
E
C
T
R
I
C
14
.
4
K
V
P
R
I
M
A
R
Y
D2
6
D2
1,2
D2
516" INLINE BUTTERFLY
VALVE ON HYDRANT TEE
PROFILE Alignment - PT Waterline 50+00 to 60+00
ϲϮϴϱ
ϲϮϵϬ
ϲϮϵϱ
ϲϯϬϬ
ϲϯϬϱ
ϲϯϭϬ
ϲϯϭϱ
ϲϯϮϬ
ϲϯϮϱ
ϲϯϯϬ
ϲϯϯϱ
ϲϮϴϱ
ϲϮϵϬ
ϲϮϵϱ
ϲϯϬϬ
ϲϯϬϱ
ϲϯϭϬ
ϲϯϭϱ
ϲϯϮϬ
ϲϯϮϱ
ϲϯϯϬ
ϲϯϯϱ
30" STORM DRAIN CROSSING
STA:55+69.61
ELEV:6288.90
22.5° BEND
STA:51+57.48
22.5° BEND
STA:51+85.98 42" MIN COVER, TYP
8" SEWER MAIN CROSSING
STA:57+25.97
ELEV:6288.88
FIRE HYDRANT
STA:56+59.65
ELEV:6304.08
EXISTING GRADE
D2
6
PROPOSED 16" DIPD2
1,2
OF
SHEETS
DATE:
SCALE:
DRAWN:
DESIGN:
AS BUILT:
PR
E
L
I
M
I
N
A
R
Y
-
N
O
T
F
O
R
C
O
N
S
T
R
U
C
T
I
O
N
10-11-2021
AS SHOWN
AZ
AC/AZ
PI
O
N
E
E
R
T
R
A
I
L
W
A
T
E
R
L
I
N
E
IM
P
R
O
V
E
M
E
N
T
S
P
R
O
J
E
C
T
22
ST
A
5
0
+
0
0
T
O
6
0
+
0
0
P6
9
3/$1
6&$/(
352),/(
6&$/(
+
9
MA
T
C
H
L
I
N
E
6
0
+
0
0
(
S
E
E
S
H
E
E
T
P
7
)
N
1 inch = ft.
GRAPHIC SCALE
40
MA
T
C
H
L
I
N
E
5
0
+
0
0
(
S
E
E
S
H
E
E
T
P
5
)
NOTES:
1.ACTUAL LOCATION AND DEPTH OF EXISTING UTILITIES SHOWN ON PLANS ARE
APPROXIMATE. CONTRACTOR SHALL POTHOLE AND VERIFY EXISTING UTILITIES
PRIOR TO CONSTRUCTION.
2.CONTRACTOR SHALL PROVIDE SAMPLE PORTS PER DETAIL 2 OF SHEET D3 AT A
MINIMUM OF EVERY 600' FOR PIPELINE DISINFECTION AND TESTING.
3.CONTRACTOR SHALL PROTECT EXISTING CURB AND GUTTER THROUGHOUT
CONSTRUCTION. ANY CURB AND GUTTER THAT IS REMOVED OR DAMAGED DURING
CONSTRUCTION SHALL BE REPLACED PER EL DORADO COUNTY STANDARDS AS
SHOWN BY DETAIL 3 OF SHEET D3.
4.CONTRACTOR SHALL COMPLY WITH CALIFORNIA DEPARTMENT OF DRINKING WATER
STANDARDS FOR INSTALLATION OF NEW WATER MAINS. A FULL UNCUT STICK OF
PIPE SHALL BE CENTERED ON ALL SEWER AND STORM DRAIN CROSSINGS.
E
60+00
61+00
62+00
63+00 64+00
65+00
66+00
67+00
68+00
69+00
70+00
11.25° BEND
STA:60+39.80
OFF:0.00'
11.25° BEND
STA:60+15.27
OFF:0.00'
FIRE HYDRANT
STA:62+72.65
OFF:20.00'R PROPOSED 16" DIP
POTENTIAL STAGING AREA
CALIFORNIA TAHOE CONSERVANCY
APN 080-010-015-000
CALIFORNIA TAHOE CONSERVANCY
APN 080-010-015-000
U.S. FOREST SERVICE
APN 080-030-002-000
U.S. FOREST SERVICE
APN 080-030-002-000
COUNTY ROW
8"
S
T
E
E
L
G
A
S
PROPERTY LINE, TYP
D2
516" INLINE BUTTERFLY
VALVE ON HYDRANT TEE
D2
1,2D2
6
BU
R
I
E
D
C
O
M
M
EL
E
C
T
R
I
C
14
.
4
K
V
P
R
I
M
A
R
Y
PROFILE Alignment - PT Waterline 60+00 to 70+00
ϲϮϴϱ
ϲϮϵϬ
ϲϮϵϱ
ϲϯϬϬ
ϲϯϬϱ
ϲϯϭϬ
ϲϯϭϱ
ϲϯϮϬ
ϲϯϮϱ
ϲϮϴϱ
ϲϮϵϬ
ϲϮϵϱ
ϲϯϬϬ
ϲϯϬϱ
ϲϯϭϬ
ϲϯϭϱ
ϲϯϮϬ
ϲϯϮϱ
ϲϬнϬϬ ϲϬнϱϬ ϲϭнϬϬ ϲϭнϱϬ ϲϮнϬϬ ϲϮнϱϬ ϲϯнϬϬ ϲϯнϱϬ ϲϰнϬϬ ϲϰнϱϬ ϲϱнϬϬ ϲϱнϱϬ ϲϲнϬϬ ϲϲнϱϬ ϲϳнϬϬ ϲϳнϱϬ ϲϴнϬϬ ϲϴнϱϬ ϲϵнϬϬ ϲϵнϱϬ ϳϬнϬϬ
11.25° BEND
STA:60+15.27
11.25° BEND
STA:60+39.80
42" MIN COVER, TYP
FIRE HYDRANT
STA:62+72.65
EXISTING GRADE
D2
6
PROPOSED 16" DIPD2
1,2
OF
SHEETS
DATE:
SCALE:
DRAWN:
DESIGN:
AS BUILT:
PR
E
L
I
M
I
N
A
R
Y
-
N
O
T
F
O
R
C
O
N
S
T
R
U
C
T
I
O
N
10-11-2021
AS SHOWN
AZ
AC/AZ
PI
O
N
E
E
R
T
R
A
I
L
W
A
T
E
R
L
I
N
E
IM
P
R
O
V
E
M
E
N
T
S
P
R
O
J
E
C
T
22
ST
A
6
0
+
0
0
T
O
7
0
+
0
0
P7
10
3/$1
6&$/(
352),/(
6&$/(
+
9
MA
T
C
H
L
I
N
E
7
0
+
0
0
(
S
E
E
S
H
E
E
T
P
8
)
N
1 inch = ft.
GRAPHIC SCALE
40
MA
T
C
H
L
I
N
E
6
0
+
0
0
(
S
E
E
S
H
E
E
T
P
6
)
NOTES:
1.ACTUAL LOCATION AND DEPTH OF EXISTING UTILITIES SHOWN ON PLANS ARE
APPROXIMATE. CONTRACTOR SHALL POTHOLE AND VERIFY EXISTING UTILITIES
PRIOR TO CONSTRUCTION.
2.CONTRACTOR SHALL PROVIDE SAMPLE PORTS PER DETAIL 2 OF SHEET D3 AT A
MINIMUM OF EVERY 600' FOR PIPELINE DISINFECTION AND TESTING.
3.CONTRACTOR SHALL PROTECT EXISTING CURB AND GUTTER THROUGHOUT
CONSTRUCTION. ANY CURB AND GUTTER THAT IS REMOVED OR DAMAGED DURING
CONSTRUCTION SHALL BE REPLACED PER EL DORADO COUNTY STANDARDS AS
SHOWN BY DETAIL 3 OF SHEET D3.
4.CONTRACTOR SHALL COMPLY WITH CALIFORNIA DEPARTMENT OF DRINKING WATER
STANDARDS FOR INSTALLATION OF NEW WATER MAINS. A FULL UNCUT STICK OF
PIPE SHALL BE CENTERED ON ALL SEWER AND STORM DRAIN CROSSINGS.
TREE
S
TREES
TREES
TR
E
E
S
T
R
E
E
S
T
R
E
E
S
TR
E
E
S
T
R
E
E
S
T
R
E
E
S
T
R
E
E
S
G
S
S
S
S
S
S
S
S
S
D
S
D
S
D
S
D
EC70+00
71+00 72+00 73+00 74+00 75+00 76+00
77+00
78+00
79+
0
0
80
+
0
0
PROPOSED 16" DIP
90° BEND
STA:71+75.77
OFF:2.00'L
PROPOSED 12" DIP
3051 KOKANEE TRAIL
3047 KOKANEE TRAIL
3055 KOKANEE TRAIL
3059 KOKANEE TRAIL
CALIFORNIA TAHOE
CONSERVANCY
APN 080-010-019-000
CALIFORNIA TAHOE CONSERVANCY
APN 080-010-019-000
CALIFORNIA TAHOE CONSERVANCY
APN 080-010-015-000
CALIFORNIA TAHOE CONSERVANCY
APN 080-010-015-000
MONTGOMERY EST.
UNIT #9 HOMES
APN 080-191-001-000
COUNTY ROW
18
"
S
T
O
R
M
D
R
A
I
N
MONTGOMERY EST.
UNIT #9 HOMES
APN 080-191-001-000
PROPERTY LINE, TYP
8"
S
T
E
E
L
G
A
S
36" STORM DRAIN
8" SEWER
2" MPE GAS
PROTECT EXISTING GUARDRAIL
THROUGHOUT CONSTRUCTION
3067 KOKANEE TRAIL
10' NON-VEHICULAR
ACCESS EASEMENT
PER (R10)
CONNECT TO EXISTING
WATER MAIN PER DETAIL 1
CITY OF SOUTH LAKE TAHOE
APN 080-010-013-000
C
O
U
N
T
Y
R
O
W
D2
5 16" INLINE BUTTERFLY
VALVE ON HYDRANT TEE
D2
6
D2
1,2
D2
1,2
TR
O
U
T
C
R
E
E
K
1
,
2
BU
R
I
E
D
C
O
M
M
EL
E
C
T
R
I
C
14
.
4
K
V
P
R
I
M
A
R
Y
EXISTING 8" C900
WATER MAIN
FIRE HYDRANT
STA:71+17.00
OFF:60.00'L
PROFILE Alignment - PT Waterline 70+00 to 80+00
ϲϮϲϱ
ϲϮϳϬ
ϲϮϳϱ
ϲϮϴϬ
ϲϮϴϱ
ϲϮϵϬ
ϲϮϵϱ
ϲϯϬϬ
ϲϯϬϱ
ϲϮϲϱ
ϲϮϳϬ
ϲϮϳϱ
ϲϮϴϬ
ϲϮϴϱ
ϲϮϵϬ
ϲϮϵϱ
ϲϯϬϬ
ϲϯϬϱ
EXISTING ELECTRICAL & COMM TRENCH
SEE NOTE 1.
STA:71+47.98
ELEV:6287.54
EXISTING 18" STORM DRAIN
12" MIN CLEARANCE
SEE NOTES 1 AND 4.
STA:72+70.05
ELEV:6286.70
FIRE HYDRANT
STA:71+17.00
EXISTING 12" SEWER MAIN
12" MIN CLEARANCE
STA:71+62.50
ELEV:6267.83
10' CORRUGATED METAL CULVERT.
(TROUT CREEK CROSSING).
EXISTING GRADE
D2
6
42" MIN
42" MIN COVER, TYP
PROPOSED 16" DIP D2
1,2
8" BEND (MJxMJ)
8" RESTRAINED COUPLER
PROPOSED 8" C900
EXISTING 8" C900
PROPOSED 8" C900
12"x8" REDUCER
(FLxFL)
8" BEND (FLxMJ)
3'
M
I
N
3'
M
I
N
12" GATE VALVE
(FLxMJ)
PROPOSED 12" DIP
OF
SHEETS
DATE:
SCALE:
DRAWN:
DESIGN:
AS BUILT:
PR
E
L
I
M
I
N
A
R
Y
-
N
O
T
F
O
R
C
O
N
S
T
R
U
C
T
I
O
N
10-11-2021
AS SHOWN
AZ
AC/AZ
PI
O
N
E
E
R
T
R
A
I
L
W
A
T
E
R
L
I
N
E
IM
P
R
O
V
E
M
E
N
T
S
P
R
O
J
E
C
T
22
ST
A
7
0
+
0
0
T
O
8
0
+
0
0
P8
11
3/$1
6&$/(
352),/(
6&$/(
+
9
MA
T
C
H
L
I
N
E
8
0
+
0
0
(
S
E
E
S
H
E
E
T
P
9
)
N
1 inch = ft.
GRAPHIC SCALE
40
M
A
T
C
H
L
I
N
E
7
0
+
0
0
(
S
E
E
S
H
E
E
T
P
7
)
NOTES:
1.ACTUAL LOCATION AND DEPTH OF EXISTING UTILITIES SHOWN ON PLANS ARE
APPROXIMATE. CONTRACTOR SHALL POTHOLE AND VERIFY EXISTING UTILITIES
PRIOR TO CONSTRUCTION.
2.CONTRACTOR SHALL PROVIDE SAMPLE PORTS PER DETAIL 2 OF SHEET D3 AT A
MINIMUM OF EVERY 600' FOR PIPELINE DISINFECTION AND TESTING.
3.CONTRACTOR SHALL PROTECT EXISTING CURB AND GUTTER THROUGHOUT
CONSTRUCTION. ANY CURB AND GUTTER THAT IS REMOVED OR DAMAGED DURING
CONSTRUCTION SHALL BE REPLACED PER EL DORADO COUNTY STANDARDS AS
SHOWN BY DETAIL 3 OF SHEET D3.
4.CONTRACTOR SHALL COMPLY WITH CALIFORNIA DEPARTMENT OF DRINKING WATER
STANDARDS FOR INSTALLATION OF NEW WATER MAINS. A FULL UNCUT STICK OF
PIPE SHALL BE CENTERED ON ALL SEWER AND STORM DRAIN CROSSINGS. PROVIDE
VERTICAL OFFSET OF NEW WATER MAIN AS REQUIRED.
'(7$,/
6&$/(
W
W
TREE
S
TRE
E
S
T
R
E
E
S
T
R
E
E
S
TRE
E
S
TRE
E
S
TRE
E
S
TRE
E
S
TRE
E
S
G
C
SS
SS
SS
SS
SD SD
SD
SD
SD
SD
W
SD
C
ELEC
80+00
81+00
82+00 83+00 84+00 85+00 86+00 87+00 87+50
PROPOSED 16" DIP
ABOVE GROUND
PRV STATION #2
PROPOSED 12" DIP
EXISTING 10" STEEL
WATER MAIN
PROPOSED 12" DIP
90° BEND
STA:82+89.82
OFF:2.00'R
2043 MARHSALL TRAIL
3068 KOKANEE TRAIL
2432 CATTLEMANS TRAIL 2438 CATTLEMANS TRAIL2442 CATTLEMANS TRAIL 2454 CATTLEMANS TRAIL
CITY OF SOUTH LAKE TAHOE
APN 080-010-013-000
1655 MAIDENHAIR CT.
3073 KOKANEE TRAIL
CONNECT TO EXISTING
WATER MAIN PER DETAIL 1
0+
0
0
1+
0
0
2+
0
0
2+
5
0
PROPERTY LINE, TYP
COUNTY ROW
3093 KOKANEE TRAIL
8"
S
T
E
E
L
G
A
S
8"
S
E
W
E
R
24" STORM DRAIN
EXISTING 10" STEEL
WATER MAIN
30
"
S
T
O
R
M
D
R
A
I
N
18
"
S
T
O
R
M
D
R
A
I
N
2"
S
T
E
E
L
G
A
S
2"
M
P
E
G
A
S
10" STORM DRAIN
1661 MAIDENHAIR CT.
EXISTING 8" STEEL
WATER MAIN
EXISTING 10" STEEL
WATER MAIN
D1
2
D2
1,2
D2
1,2
D2
1,2
D1
6
BU
R
I
E
D
C
O
M
M
EL
E
C
T
R
I
C
14
.
4
K
V
P
R
I
M
A
R
Y
CONNECT TO EXISTING
WATER MAIN PER DETAIL 2
CONNECT TO
EXISTING WATER
MAIN PER DETAIL 4
CONNECT TO EXISTING
WATER MAIN PER DETAIL 3
SEE DETAIL 5
THIS SHEET
FIRE HYDRANT
STA:2+22.00
PROFILE Alignment - PT Waterline 80+00 to 87+50
ϲϮϴϱ
ϲϮϵϬ
ϲϮϵϱ
ϲϯϬϬ
ϲϯϬϱ
ϲϯϭϬ
ϲϯϭϱ
ϲϮϴϱ
ϲϮϵϬ
ϲϮϵϱ
ϲϯϬϬ
ϲϯϬϱ
ϲϯϭϬ
ϲϯϭϱ
ϴϬнϬϬ ϴϬнϱϬ ϴϭнϬϬ ϴϭнϱϬ ϴϮнϬϬ ϴϮнϱϬ ϴϯнϬϬ ϴϯнϱϬ ϴϰнϬϬ ϴϰнϱϬ ϴϱнϬϬ ϴϱнϱϬ ϴϲнϬϬ ϴϲнϱϬ ϴϳнϬϬ ϴϳнϱϬ
EXISTING 18" STORM DRAIN
12" MIN CLEARANCE
SEE NOTES 1 AND 4.
STA:81+84.62
ELEV:6295.30
EXISTING 18" STORM DRAIN
12" MIN CLEARANCE
SEE NOTES 1 AND 4.
STA:83+34.82
ELEV:6298.70
EXISTING 30" STORM DRAIN
12" MIN CLEARANCE
SEE NOTES 1 AND 4.
STA:84+28.83
ELEV:6298.80
EXISTING 8" SEWER MAIN
12" CLEARANCE MIN
SEE NOTES 1 AND 4.
STA:84+72.04
ELEV:6298.40
16"x16" TEE
STA:86+01.82
42" MIN COVER, TYP
EXISTING GRADE
D3
4
D3
4 D2
1,2
16"x8" TEE
STA:85+90.19
PROPOSED 12" DIPD2
1,2
90° BEND
90° BEND
EXISTING 2" GAS MAIN
STA:86+42.65
ELEV:6306.61
PROPOSED 16" DIP
90° BEND
STA:82+89.82
CONNECT TO
EXISTING WATER
MAIN PER DETAIL 4
18" MIN
18" MIN 12" MIN
PROPOSED 12" DIP
PROPOSED 16" DIP
PROPOSED 12" DIP
12" BEND (MJxMJ)
12" BEND (MJxMJ)
16"x16" TEE (MJxMJ)
STA: 86+02
16"x8" TEE (FLxFL)
STA: 85+90
18" MIN
PROPOSED 8" DIP
8" GATE VALVE
(MJXMJ)
16"x8" BUTTERFLY
VALVE (FLxMJ)
16" FLxMJ ADAPTER
8" FLxMJ ADAPTER
8" BEND (MJxMJ)
8" BEND (MJxMJ)
TRANSITION COUPLER
PER DETAIL
PROPOSED 8" C900
EXISTING 8" STEEL
(48" BSG, +\-12")
PROPOSED 8" C900
EXISTING DROP INLET
4' MIN
D1
3
10" BEND (MJxMJ)
12" GATE VALE
(FLxMJ)
TRANSITION COUPLER
PER DETAIL
PROPOSED 10" C900
EXISTING 10" STEEL
(48" BSG, +\-12")
PROPOSED 10" C900
12"x10" REDUCER
(FLxFL)
10" BEND (FLxMJ)
PROPOSED 12" DIP
3' MIN
3'
M
I
N
D1
3
C
10" BEND (FLxMJ)
10" BEND (MJxMJ)
16"x10" REDUCER (FLxFL)
TRANSITION COUPLER
PER DETAIL
EXISTING 10" STEEL
(48" BSG, +\-12")
PROPOSED 10" C900
PROPOSED 10" C900
PROPOSED 16" DIP
16" BUTTERFLY VALVE (FLxMJ)
EXISTING COMM
VAULT
D1
3
3' MIN
10" BEND (MJxMJ)
TRANSITION COUPLER
PER DETAIL
PROPOSED 10" C900
EXISTING 10" STEEL
(48" BSG, +\-12")
PROPOSED 10" C900
12"x10" REDUCER
(FLxFL)
10" BEND (FLxMJ)
PROPOSED 12" C900
3' MIN
3'
M
I
N
12" FLxMJ ADAPTER
PROPOSED 12" C900
12"x6" HYDRANT TEE
(MJxMJ)PROPOSED 6" C900
(HYDRANT LATERAL)
3'
M
I
N
D1
3
PROFILE Alignment - Marshall Trail Centerline
ϲϮϴϱ
ϲϮϵϬ
ϲϮϵϱ
ϲϯϬϬ
ϲϯϬϱ
ϲϯϭϬ
ϲϯϭϱ
ϲϯϮϬ
ϲϮϴϱ
ϲϮϵϬ
ϲϮϵϱ
ϲϯϬϬ
ϲϯϬϱ
ϲϯϭϬ
ϲϯϭϱ
ϲϯϮϬ
ϬнϬϬ ϬнϱϬ ϭнϬϬ ϭнϱϬ ϮнϬϬ ϮнϱϬ ϯнϬϬ
EXISTING GRADE
42" MIN COVER, TYP
PROPOSED 16" DIP D2
1,2
PROPOSED 8" C900 D2
1,2
PROPOSED 12" DIP D2
1,2
ABOVE GROUND
PRV STATION #2
FIRE HYDRANT
STA:2+22.00 D2
6
D1
2
EXISTING 30" STORM DRAIN
12" CLEARANCE MIN
SEE NOTES 1 AND 4.
STA:0+53.08
ELEV:6301.80
EXISTING 18" STORM DRAIN
12" CLEARANCE MIN
SEE NOTES 1 AND 4.
STA:1+31.90
ELEV:6302.20
D3
4 D3
4
CONNECT TO
EXISTING WATER
MAIN PER DETAIL 3
CONNECT TO
EXISTING WATER
MAIN PER DETAIL 2
8" GAS MAIN
STA:1+22.95
ELEV:6303.77
EXISTING ELECTRICAL & COMM TRENCH
SEE NOTE 1.
STA:0+67.77
ELEV:6304.96
EXISTING 10" WATER MAIN
SEE NOTE 1.
STA:0+57.95
ELEV:6301.40
OF
SHEETS
DATE:
SCALE:
DRAWN:
DESIGN:
AS BUILT:
PR
E
L
I
M
I
N
A
R
Y
-
N
O
T
F
O
R
C
O
N
S
T
R
U
C
T
I
O
N
10-11-2021
AS SHOWN
AZ
AC/AZ
PI
O
N
E
E
R
T
R
A
I
L
W
A
T
E
R
L
I
N
E
IM
P
R
O
V
E
M
E
N
T
S
P
R
O
J
E
C
T
22
ST
A
8
0
+
0
0
T
O
9
0
+
0
0
P9
12
3/$1
6&$/(
352),/(
6&$/(
+
9
N
1 inch = ft.
GRAPHIC SCALE
40
M
A
T
C
H
L
I
N
E
8
0
+
0
0
(
S
E
E
S
H
E
E
T
P
8
)
NOTES:
1.ACTUAL LOCATION AND DEPTH OF EXISTING UTILITIES SHOWN ON PLANS ARE
APPROXIMATE. CONTRACTOR SHALL POTHOLE AND VERIFY EXISTING UTILITIES
PRIOR TO CONSTRUCTION.
2.CONTRACTOR SHALL PROVIDE SAMPLE PORTS PER DETAIL 2 OF SHEET D3 AT A
MINIMUM OF EVERY 600' FOR PIPELINE DISINFECTION AND TESTING.
3.CONTRACTOR SHALL PROTECT EXISTING CURB AND GUTTER THROUGHOUT
CONSTRUCTION. ANY CURB AND GUTTER THAT IS REMOVED OR DAMAGED
DURING CONSTRUCTION SHALL BE REPLACED PER EL DORADO COUNTY
STANDARDS AS SHOWN BY DETAIL 3 OF SHEET D3.
4.CONTRACTOR SHALL COMPLY WITH CALIFORNIA DEPARTMENT OF DRINKING
WATER STANDARDS FOR INSTALLATION OF NEW WATER MAINS. A FULL UNCUT
STICK OF PIPE SHALL BE CENTERED ON ALL SEWER AND STORM DRAIN
CROSSINGS. PROVIDE VERTICAL OFFSET OF NEW WATER MAIN AS REQUIRED.
'(7$,/
6&$/(
'(7$,/
6&$/(
'(7$,/
6&$/(
'(7$,/
6&$/(
'(7$,/
6&$/(
352),/(
6&$/(
+
9
18+00
PI
N
E
V
A
L
L
E
Y
P
R
V
2"
D
O
M
E
S
T
I
C
12
"
F
I
R
E
SU
S
Q
U
E
H
A
N
A
P
R
V
2"
D
O
M
E
S
T
I
C
6"
F
I
R
E
EXI
S
T
I
N
G
D
I
R
T
R
O
A
D
COUNTY ROW
PROPERTY LINE, TYP
90° BEND
STA:17+67.23
OFF:0.00'
90° BEND
STA:17+55.47
OFF:0.00'
90° BEND
STA:17+61.57
OFF:2.00'L
90° BEND
STA:17+66.65
OFF:11.77'R
CONCRETE PAD PER HOT BOX
MANUFACTURER SPECIFICATIONS
12'
10
'
CLEAR AND GRUB SITE AS NECESSARY
TO INSTALL PRV STATION AND PIPING
16" DUCTILE IRON PIPE
16" DUCTILE IRON PIPE
8" C900 PIPE
2+
0
0
STATELINE PRV
2" DOMESTIC
8" FIRE
GOLDEN BEAR PRV
2" DOMESTIC
8" FIRE
KOKANEE PRV
1-12" OR 2" DOMESTIC
8" FIRE
90° BEND
STA:1+66.85
90° BEND
STA:1+71.83
90° BEND
STA:1+77.85
90° BEND
STA:1+83.87
90° BEND
STA:1+66.91
CONCRETE PAD PER HOT BOX
MANUFACTURER SPECIFICATIONS
18
'
10'
PROPOSED 16" DIP
PROPOSED 12" DIP
PROPOSED 12" DIP
PROPOSED 12" C900
COUNTY ROW
OF
SHEETS
DATE:
SCALE:
DRAWN:
DESIGN:
AS BUILT:
PR
E
L
I
M
I
N
A
R
Y
-
N
O
T
F
O
R
C
O
N
S
T
R
U
C
T
I
O
N
10-11-2021
AS SHOWN
AZ
AC/AZ
PI
O
N
E
E
R
T
R
A
I
L
W
A
T
E
R
L
I
N
E
IM
P
R
O
V
E
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133TRANSITION COUPLER DETAIL
1 PRV STATION #1 2 PRV STATION #2
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144TYPICAL THRUST BLOCK
1 TRENCH DETAIL - WITHIN PAVED AREAS 2 TRENCH DETAIL - OUTSIDE PAVED AREAS 3 RESTRAINT LENGTH SCHEDULE
6 FIRE HYDRANT ASSEMBLY5WATER VALVE ASSEMBLY
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154WATER MAIN VERTICAL OFFSET
1 WATER SERVICE 2 TEST STATION 3 CURB AND GUTTER REPLACEMENT
6 NOT USED5SINGLE LANE PAVEMENT REPLACEMENT
37 STPUD Pioneer Trail Waterline Replacement Project
Appendix B – USFWS Species List and CNDDB Database Search Results
January 17, 2022
United States Department of the Interior
FISH AND WILDLIFE SERVICE
Reno Fish And Wildlife Office
1340 Financial Boulevard, Suite 234
Reno, NV 89502-7147
Phone: (775) 861-6300 Fax: (775) 861-6301
http://www.fws.gov/reno/
In Reply Refer To:
Consultation Code: 08ENVD00-2022-SLI-0154
Event Code: 08ENVD00-2022-E-00398
Project Name: South Tahoe Public Utility District - Pioneer Trail Waterline and Facilities
Upgrade Project
Subject:List of threatened and endangered species that may occur in your proposed project
location or may be affected by your proposed project
To Whom It May Concern:
7KHDWWDFKHGVSHFLHVOLVWLQGLFDWHVWKUHDWHQHGHQGDQJHUHGSURSRVHGDQGFDQGLGDWHVSHFLHVDQG
designated or proposed critical habitat that may occur within the boundary of your proposed
SURMHFWDQGRUPD\EHDIIHFWHGE\\RXUSURSRVHGSURMHFW7KHVSHFLHVOLVWIXOILOOVWKH
requirements of the U.S. Fish and Wildlife Service (Service) under section 7(c) of the
Endangered Species Act of 1973, as amended (ESA, 16 U.S.C. 1531 et seq.), for projects that are
DXWKRUL]HGIXQGHGRUFDUULHGRXWE\D)HGHUDODJHQF\&DQGLGDWHVSHFLHVKDYHQRSURWHFWLRQ
under the ESA but are included for consideration because they could be listed prior to the
FRPSOHWLRQRI\RXUSURMHFW&RQVLGHUDWLRQRIWKHVHVSHFLHVGXULQJSURMHFWSODQQLQJPD\DVVLVW
VSHFLHVFRQVHUYDWLRQHIIRUWVDQGPD\SUHYHQWWKHQHHGIRUIXWXUHOLVWLQJDFWLRQV)RUDGGLWLRQDO
LQIRUPDWLRQUHJDUGLQJVSHFLHVWKDWPD\EHIRXQGLQWKHSURSRVHGSURMHFWDUHDYLVLWhttp://
www.fws.gov/nevada/es/ipac.html.
7KHSXUSRVHRIWKH(6$LVWRSURYLGHDPHDQVZKHUHE\WKUHDWHQHGDQGHQGDQJHUHGVSHFLHVDQG
WKHHFRV\VWHPVXSRQZKLFKWKH\GHSHQGPD\EHFRQVHUYHG8QGHUVHFWLRQV D DQG D
RIWKH(6$DQGLWVLPSOHPHQWLQJUHJXODWLRQV &)5et seq.), Federal agencies are required
to utilize their authorities to carry out programs for the conservation of threatened and
endangered species and to determine whether projects may affect threatened and endangered
species and/or designated critical habitat.
A Biological Assessment is required for construction projects that are major Federal actions
significantly affecting the quality of the human environment as defined in the National
(QYLURQPHQWDO3ROLF\$FW 86& F )RUSURMHFWVRWKHUWKDQPDMRUFRQVWUXFWLRQ
activities, the Service suggests that a biological evaluation similar to a Biological Assessment be
prepared to determine whether the project may affect listed or proposed species and/or
01/17/2022 Event Code: 08ENVD00-2022-E-00398 2
GHVLJQDWHGRUSURSRVHGFULWLFDOKDELWDW*XLGHOLQHVIRUSUHSDULQJD%LRORJLFDO$VVHVVPHQWFDQEH
IRXQGDW http://www.fws.gov/midwest/endangered/section7/ba_guide.html.
If a Federal action agency determines, based on the Biological Assessment or biological
evaluation, that listed species and/or designated critical habitat may be affected by the proposed
SURMHFWWKHDJHQF\LVUHTXLUHGWRFRQVXOWZLWKWKH6HUYLFHSXUVXDQWWR&)5,QDGGLWLRQ
the Service recommends that candidate species, proposed species, and proposed critical habitat
EHDGGUHVVHGZLWKLQWKHFRQVXOWDWLRQ0RUHLQIRUPDWLRQRQWKHUHJXODWLRQVDQGSURFHGXUHVIRU
section 7 consultation, including the role of permit or license applicants, can be found in the
"Endangered Species Consultation Handbook" at:
http://www.fws.gov/endangered/esa-library/pdf/TOC-GLOS.PDF.
New information based on updated surveys, changes in the abundance and distribution of
VSHFLHVFKDQJHGKDELWDWFRQGLWLRQVRURWKHUIDFWRUVFRXOGFKDQJHWKLVVSHFLHVOLVW3OHDVHIHHO
free to contact us if you need more current information or assistance regarding the potential
LPSDFWVWRIHGHUDOO\OLVWHGSURSRVHGDQGFDQGLGDWHVSHFLHVDQGIHGHUDOO\GHVLJQDWHGDQG
SURSRVHGFULWLFDOKDELWDW3OHDVHQRWHWKDWXQGHU&)5 H RIWKHUHJXODWLRQV
implementing section 7 of the ESA, the accuracy of this species list should be verified after 90
GD\V7KLVYHULILFDWLRQFDQEHFRPSOHWHGIRUPDOO\RULQIRUPDOO\DVGHVLUHG7KH6HUYLFH
recommends that verification be completed by visiting the ECOS-IPaC website at regular
intervals during project planning and implementation, for updates to species lists and
LQIRUPDWLRQ$QXSGDWHGOLVWPD\EHUHTXHVWHGWKURXJKWKH(&26,3D&V\VWHPE\FRPSOHWLQJ
the same process used to receive the attached list.
7KH1HYDGD)LVKDQG:LOGOLIH2IILFH 1):2 QRORQJHUSURYLGHVVSHFLHVRIFRQFHUQOLVWV0RVW
of these species for which we have concern are also on the Animal and Plant At-Risk Tracking
/LVWIRU1HYDGD $W5LVNOLVW PDLQWDLQHGE\WKH6WDWHRI1HYDGDµV1DWXUDO+HULWDJH3URJUDP
+HULWDJH ,QVWHDGRIPDLQWDLQLQJRXURZQOLVWZHDGRSWHG+HULWDJH
V$W5LVNOLVWDQGDUH
partnering with them to provide distribution data and information on the conservation needs for
DWULVNVSHFLHVWRDJHQFLHVRUSURMHFWSURSRQHQWV7KHPLVVLRQRI+HULWDJHLVWRFRQWLQXDOO\
evaluate the conservation priorities of native plants, animals, and their habitats, particularly those
PRVWYXOQHUDEOHWRH[WLQFWLRQRULQVHULRXVGHFOLQH,QDGGLWLRQLQRUGHUWRDYRLGIXWXUHFRQIOLFWV
we ask that you consider these at-risk species early in your project planning and explore
PDQDJHPHQWDOWHUQDWLYHVWKDWSURYLGHIRUWKHLUORQJWHUPFRQVHUYDWLRQ
For a list of at-risk species by county, visit Heritage's website (http://heritage.nv.gov )RUD
specific list of at-risk species that may occur in the project area, you can obtain a data request
form from the website (http://heritage.nv.gov/get_data) or by contacting the Administrator of
Heritage at 901 South Stewart Street, Suite 5002, Carson City, Nevada 89701-5245, (775)
3OHDVHLQGLFDWHRQWKHIRUPWKDW\RXUUHTXHVWLVEHLQJREWDLQHGDVSDUWRI\RXU
FRRUGLQDWLRQZLWKWKH6HUYLFHXQGHUWKH(6$'XULQJ\RXUSURMHFWDQDO\VLVLI\RXREWDLQQHZ
information or data for any Nevada sensitive species, we request that you provide the
LQIRUPDWLRQWR+HULWDJHDWWKHDERYHDGGUHVV
Furthermore, certain species of fish and wildlife are classified as protected by the State of
Nevada (http://www.leg.state.nv.us/NAC/NAC-503.html <RXPXVWILUVWREWDLQWKHDSSURSULDWH
license, permit, or written authorization from the Nevada Department of Wildlife (NDOW) to
01/17/2022 Event Code: 08ENVD00-2022-E-00398 3
WDNHRUSRVVHVVDQ\SDUWVRISURWHFWHGILVKDQGZLOGOLIHVSHFLHV3OHDVHYLVLWhttp://
www.ndow.org or contact NDOW in northern Nevada (775) 688-1500, in southern Nevada (702)
486-5127, or in eastern Nevada (775) 777-2300.
Please be aware that bald and golden eagles are protected under the Bald and Golden Eagle
Protection Act (16 U.S.C. 668 et seq.), and projects affecting these species may require
GHYHORSPHQWRIDQHDJOHFRQVHUYDWLRQSODQ
(http://www.fws.gov/windenergy/eagle_guidance.html $GGLWLRQDOO\ZLQGHQHUJ\SURMHFWV
should follow the Service's wind energy guidelines (http://www.fws.gov/windenergy/) for
minimizing impacts to migratory birds and bats.
7KH6HUYLFHµV3DFLILF6RXWKZHVW5HJLRQGHYHORSHGWKHInterim Guidelines for the Development
of a Project Specific Avian and Bat Protection Plan for Wind Energy Facilities (Interim
*XLGHOLQHV 7KLVGRFXPHQWSURYLGHVHQHUJ\IDFLOLW\GHYHORSHUVZLWKDWRROIRUDVVHVVLQJWKHULVN
of potential impacts to wildlife resources and delineates how best to design and operate a bird-
DQGEDWIULHQGO\ZLQGIDFLOLW\7KHVH,QWHULP*XLGHOLQHVDUHDYDLODEOHXSRQUHTXHVWIURPWKH
1):27KHLQWHQWRID%LUGDQG%DW&RQVHUYDWLRQ6WUDWHJ\LVWRFRQVHUYHZLOGOLIHUHVRXUFHV
ZKLOHVXSSRUWLQJSURMHFWGHYHORSHUVWKURXJK HVWDEOLVKLQJSURMHFWGHYHORSPHQWLQDQDGDSWLYH
management framework; (2) identifying proper siting and project design strategies; (3) designing
and implementing pre-construction surveys; (4) implementing appropriate conservation measures
for each development phase; (5) designing and implementing appropriate post-construction
monitoring strategies; (6) using post-construction studies to better understand the dynamics of
mortality reduction (e.g.FKDQJHVLQEODGHFXWLQVSHHGDVVHVVPHQWVRIEODGH²IHDWKHULQJ³
success, and studies on the effects of visual and acoustic deterrents) including efforts tied into
Before-After/Control-Impact analysis; and (7) conducting a thorough risk assessment and
YDOLGDWLRQOHDGLQJWRDGMXVWPHQWVLQPDQDJHPHQWDQGPLWLJDWLRQDFWLRQV
7KHWHPSODWHDQGUHFRPPHQGDWLRQVVHWIRUWKLQWKH,QWHULP*XLGHOLQHVZHUHEDVHGXSRQWKH
$YLDQ3RZHUOLQH,QWHUDFWLRQ&RPPLWWHHµV$YLDQ3URWHFWLRQ3ODQWHPSODWH http://www.aplic.org/)
developed for electric utilities and modified accordingly to address the unique concerns of wind
HQHUJ\IDFLOLWLHV7KHVHUHFRPPHQGDWLRQVDUHDOVRFRQVLVWHQWZLWKWKH6HUYLFHµVZLQGHQHUJ\
JXLGHOLQHV:HUHFRPPHQGFRQWDFWLQJXVDVHDUO\DVSRVVLEOHLQWKHSODQQLQJSURFHVVWRGLVFXVV
WKHQHHGDQGSURFHVVIRUGHYHORSLQJDVLWHVSHFLILF%LUGDQG%DW&RQVHUYDWLRQ6WUDWHJ\
The Service has also developed guidance regarding wind power development in relation to
SUDLULHJURXVHOHNV VDJHJURXVHDUHLQFOXGHGLQWKLV 7KLVGRFXPHQWFDQEHIRXQGDW http://
www.fws.gov/southwest/es/Oklahoma/documents/te_species/wind%20power/
prairie%20grouse%20lek%205%20mile%20public.pdf.
0LJUDWRU\%LUGVDUHD6HUYLFH7UXVW5HVRXUFH%DVHGRQWKH6HUYLFH
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responsibilities and management authority for migratory birds under the Migratory Bird Treaty
Act of 1918, as amended (MBTA; 16 U.S.C. 703 et seq.), we recommend that any land clearing
or other surface disturbance associated with proposed actions within the project area be timed to
DYRLGSRWHQWLDOGHVWUXFWLRQRIELUGQHVWVRU\RXQJRUELUGVWKDWEUHHGLQWKHDUHD6XFK
GHVWUXFWLRQPD\EHLQYLRODWLRQRIWKH0%7$8QGHUWKH0%7$QHVWVZLWKHJJVRU\RXQJRI
PLJUDWRU\ELUGVPD\QRWEHKDUPHGQRUPD\PLJUDWRU\ELUGVEHNLOOHG7KHUHIRUHZH
UHFRPPHQGODQGFOHDULQJEHFRQGXFWHGRXWVLGHWKHDYLDQEUHHGLQJVHDVRQ,IWKLVLVQRWIHDVLEOH
01/17/2022 Event Code: 08ENVD00-2022-E-00398 4
ZHUHFRPPHQGDTXDOLILHGELRORJLVWVXUYH\WKHDUHDSULRUWRODQGFOHDULQJ,IQHVWVDUHORFDWHGRU
if other evidence of nesting (i.e., mated pairs, territorial defense, carrying nesting material,
transporting food) is observed, a protective buffer (the size depending on the habitat
requirements of the species) should be delineated and the entire area avoided to prevent
destruction or disturbance to nests until they are no longer active.
*XLGDQFHIRUPLQLPL]LQJLPSDFWVWRPLJUDWRU\ELUGVIRUSURMHFWVLQYROYLQJFRPPXQLFDWLRQV
towers (e.g.FHOOXODUGLJLWDOWHOHYLVLRQUDGLRDQGHPHUJHQF\EURDGFDVW FDQEHIRXQGDW http://
www.fws.gov/migratorybirds/CurrentBirdIssues/Hazards/towers/towers.htm http://
www.towerkill.com DQGhttp://
www.fws.gov/migratorybirds/CurrentBirdIssues/Hazards/towers/comtow.html.
If wetlands, springs, or streams are are known to occur in the project area or are present in the
vicinity of the project area, we ask that you be aware of potential impacts project activities may
KDYHRQWKHVHKDELWDWV'LVFKDUJHRIILOOPDWHULDOLQWRZHWODQGVRUZDWHUVRIWKH8QLWHG6WDWHVLV
regulated by the U.S. Army Corps of Engineers (ACOE) pursuant to section 404 of the Clean
:DWHU$FWRI DVDPHQGHG:HUHFRPPHQG\RXFRQWDFWWKH$&2(µV5HJXODWRU\6HFWLRQ
UHJDUGLQJWKHSRVVLEOHQHHGIRUDSHUPLW)RUSURMHFWVORFDWHGLQQRUWKHUQ1HYDGD &DUVRQ&LW\
Churchill, Douglas, Elko, Esmeralda, Eureka, Humboldt, Lander, Lyon, Mineral, Pershing,
6WRUH\DQG:DVKRH&RXQWLHV FRQWDFWWKH5HQR5HJXODWRU\2IILFHDW%RRWK6WUHHW5RRP
5HQR1HYDGD LQVRXWKHUQ1HYDGD &ODUN/LQFROQ1\HDQG
White Pine Counties) contact the St. George Regulatory Office at 321 North Mall Drive, Suite
L-101, St. George, Utah 84790-7314, (435) 986-3979; or in California along the eastern Sierra
contact the Sacramento Regulatory Office at 650 Capitol Mall, Suite 5-200, Sacramento,
California 95814, (916) 557-5250.
:HDSSUHFLDWH\RXUFRQFHUQIRUWKUHDWHQHGDQGHQGDQJHUHGVSHFLHV3OHDVHLQFOXGHWKH
Consultation Tracking Number in the header of this letter with any request for consultation or
correspondence about your project that you submit to our office.
7KHWDEOHEHORZRXWOLQHVOHDG):6ILHOGRIILFHVE\FRXQW\DQGODQGRZQHUVKLSSURMHFWW\SH
Please refer to this table when you are ready to coordinate (including requests for section 7
consultation) with the field office corresponding to your project, and send any documentation
regarding your project to that corresponding office. Therefore, the lead FWS field office may not
EHWKHRIILFHOLVWHGDERYHLQWKHOHWWHUKHDG
Lead FWS offices by County and Ownership/Program
County Ownership/Program Species Office Lead*
Alameda 7LGDOZHWODQGVPDUVKDGMDFHQWWR
Bays
Salt marsh
species, delta
smelt
BDFWO
Alameda All ownerships but tidal/estuarine All SFWO
Alpine Humboldt Toiyabe National
Forest
All RFWO
01/17/2022 Event Code: 08ENVD00-2022-E-00398 5
Alpine Lake Tahoe Basin Management
Unit
All RFWO
Alpine Stanislaus National Forest All SFWO
Alpine El Dorado National Forest All SFWO
Colusa Mendocino National Forest All AFWO
Colusa Other All By jurisdiction (see
map)
Contra Costa Legal Delta (Excluding
ECCHCP)
All BDFWO
Contra Costa Antioch Dunes NWR All BDFWO
Contra Costa 7LGDOZHWODQGVPDUVKDGMDFHQWWR
Bays
Salt marsh
species, delta
smelt
BDFWO
Contra Costa All ownerships but tidal/estuarine All SFWO
Del Norte All All AFWO
El Dorado El Dorado National Forest All SFWO
El Dorado LakeTahoe Basin Management
Unit
RFWO
Glenn Mendocino National Forest All AFWO
Glenn Other All By jurisdiction (see
map)
Humboldt
All except Shasta Trinity National
Forest
All AFWO
Humboldt Shasta Trinity National Forest All YFWO
Lake Mendocino National Forest All AFWO
Lake Other All By jurisdiction (see
map)
Lassen Modoc National Forest All KFWO
Lassen Lassen National Forest All SFWO
Lassen Toiyabe National Forest All RFWO
Lassen BLM Surprise and Eagle Lake
Resource Areas
All RFWO
01/17/2022 Event Code: 08ENVD00-2022-E-00398 6
Lassen BLM Alturas Resource Area All KFWO
Lassen Lassen Volcanic National Park $OO LQFOXGHV
Eagle Lake
trout on all
ownerships)
SFWO
Lassen All other ownerships All By jurisdiction (see
map)
Marin Tidal wetlands/marsh adjacent to
Bays
Salt marsh
species, delta
smelt
BDFWO
Marin All ownerships but tidal/estuarine All SFWO
Mendocino Russian River watershed All SFWO
Mendocino All except Russian River
watershed
All AFWO
Modoc Modoc National Forest All KFWO
Modoc BLM Alturas Resource Area All KFWO
Modoc Klamath Basin National Wildlife
Refuge Complex
All KFWO
Modoc %/06XUSULVHDQG(DJOH/DNH
Resource Areas
All RFWO
Modoc All other ownerships All By jurisdiction (See
map)
Mono Inyo National Forest All RFWO
Mono Humboldt Toiyabe National
Forest
All RFWO
Napa
All ownerships but tidal/estuarine All SFWO
Napa Tidal wetlands/marsh adjacent to
San Pablo Bay
Salt marsh
species, delta
smelt
BDFWO
Nevada Humboldt Toiyabe National
Forest
All RFWO
Nevada All other ownerships All By jurisdiction (See
map)
01/17/2022 Event Code: 08ENVD00-2022-E-00398 7
Placer
Lake Tahoe Basin Management
Unit
All RFWO
Placer All other ownerships All SFWO
Sacramento Legal Delta Delta Smelt BDFWO
Sacramento Other All By jurisdiction (see
map)
San Francisco Tidal wetlands/marsh adjacent to
San Francisco Bay
Salt marsh
species, delta
smelt
BDFWO
San Francisco All ownerships but tidal/estuarine All SFWO
San Mateo Tidal wetlands/marsh adjacent to
San Francisco Bay
Salt marsh
species, delta
smelt
BDFWO
San Mateo All ownerships but tidal/estuarine All SFWO
San Joaquin Legal Delta excluding San
Joaquin HCP
All BDFWO
San Joaquin Other All SFWO
Santa Clara Tidal wetlands/marsh adjacent to
San Francisco Bay
Salt marsh
species, delta
smelt
BDFWO
Santa Clara All ownerships but tidal/estuarine All SFWO
Shasta Shasta Trinity National Forest
except Hat Creek Ranger District
(administered by Lassen National
Forest)
All YFWO
Shasta Hat Creek Ranger District All SFWO
Shasta Bureau of Reclamation (Central
Valley Project)
All BDFWO
Shasta Whiskeytown National Recreation
Area
All YFWO
01/17/2022 Event Code: 08ENVD00-2022-E-00398 8
Shasta BLM Alturas Resource Area All KFWO
Shasta Caltrans By jurisdiction SFWO/AFWO
Shasta Ahjumawi Lava Springs State
Park
Shasta
crayfish
SFWO
Shasta All other ownerships All By jurisdiction (see
map)
Shasta Natural Resource Damage
Assessment, all lands
All SFWO/BDFWO
Sierra Humboldt Toiyabe National
Forest
All RFWO
Sierra All other ownerships All SFWO
Siskiyou Klamath National Forest (except
Ukonom District)
All YFWO
Siskiyou Six Rivers National Forest and
Ukonom District
All AFWO
Siskiyou Shasta Trinity National Forest All YFWO
Siskiyou Lassen National Forest All SFWO
Siskiyou Modoc National Forest All KFWO
Siskiyou Lava Beds National Volcanic
Monument
All KFWO
Siskiyou BLM Alturas Resource Area All KFWO
Siskiyou Klamath Basin National Wildlife
Refuge Complex
All KFWO
Siskiyou All other ownerships All By jurisdiction (see
map)
Solano Suisun Marsh All BDFWO
Solano Tidal wetlands/marsh adjacent to
San Pablo Bay
Salt marsh
species, delta
smelt
BDFWO
Solano All ownerships but tidal/estuarine All SFWO
Solano Other All By jurisdiction (see
map)
01/17/2022 Event Code: 08ENVD00-2022-E-00398 9
Sonoma Tidal wetlands/marsh adjacent to
San Pablo Bay
Salt marsh
species, delta
smelt
BDFWO
Sonoma All ownerships but tidal/estuarine All SFWO
Tehama Mendocino National Forest All AFWO
Tehama Shasta Trinity National Forest
except Hat Creek Ranger District
(administered by Lassen National
Forest)
All YFWO
Tehama All other ownerships All By jurisdiction (see
map)
Trinity BLM All AFWO
Trinity Six Rivers National Forest All AFWO
Trinity Shasta Trinity National Forest All YFWO
Trinity Mendocino National Forest All AFWO
Trinity BIA (Tribal Trust Lands)All AFWO
Trinity County Government All AFWO
Trinity All other ownerships All By jurisdiction (See
map)
Yolo Yolo Bypass All BDFWO
Yolo Other All By jurisdiction (see
map)
All FERC-ESA All By jurisdiction (see
map)
All FERC-ESA Shasta
crayfish
SFWO
All FERC-Relicensing (non-ESA)All BDFWO
*Office Leads:
AFWO=Arcata Fish and Wildlife Office
01/17/2022 Event Code: 08ENVD00-2022-E-00398 10
Ƒ
Ƒ
Ƒ
Ƒ
BDFWO=Bay Delta Fish and Wildlife Office
KFWO=Klamath Falls Fish and Wildlife Office
RFWO=Reno Fish and Wildlife Office
YFWO=Yreka Fish and Wildlife Office
Attachment(s):
Official Species List
USFWS National Wildlife Refuges and Fish Hatcheries
Migratory Birds
Wetlands
01/17/2022 Event Code: 08ENVD00-2022-E-00398 1
Official Species List
This list is provided pursuant to Section 7 of the Endangered Species Act, and fulfills the
requirement for Federal agencies to "request of the Secretary of the Interior information whether
any species which is listed or proposed to be listed may be present in the area of a proposed
action".
This species list is provided by:
Reno Fish And Wildlife Office
1340 Financial Boulevard, Suite 234
Reno, NV 89502-7147
(775) 861-6300
01/17/2022 Event Code: 08ENVD00-2022-E-00398 2
Project Summary
Consultation Code:08ENVD00-2022-SLI-0154
Event Code:Some(08ENVD00-2022-E-00398)
Project Name:South Tahoe Public Utility District - Pioneer Trail Waterline and Facilities
Upgrade Project
Project Type:WATER SUPPLY / DELIVERY
Project Description:STPUD is to replace and upgrade existing waterlines in the right-of-way
of Pioneer Trail and install pressure reducing valves for residential water
distribution lines in South Lake Tahoe, CA. A total of 1.5 miles of new
water line will be installed to allow for redundancy in water distribution
and to increase fire-flows to the adjacent residential areas. Project
implementation will occur over the course of one year likely in 2023.
Project Location:
Approximate location of the project can be viewed in Google Maps: https://
www.google.com/maps/@38.8950402,-119.9721520603801,14z
Counties:El Dorado County, California
01/17/2022 Event Code: 08ENVD00-2022-E-00398 3
1.
Endangered Species Act Species
There is a total of 4 threatened, endangered, or candidate species on this species list.
Species on this list should be considered in an effects analysis for your project and could include
species that exist in another geographic area. For example, certain fish may appear on the species
list because a project could affect downstream species.
IPaC does not display listed species or critical habitats under the sole jurisdiction of NOAA
Fisheries , as USFWS does not have the authority to speak on behalf of NOAA and the
Department of Commerce.
See the "Critical habitats" section below for those critical habitats that lie wholly or partially
within your project area under this office's jurisdiction. Please contact the designated FWS office
if you have questions.
NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an
office of the National Oceanic and Atmospheric Administration within the Department of
Commerce.
Amphibians
NAME STATUS
Sierra Nevada Yellow-legged Frog Rana sierrae
There is final critical habitat for this species. The location of the critical habitat is not available.
Species profile: https://ecos.fws.gov/ecp/species/9529
Endangered
Fishes
NAME STATUS
Lahontan Cutthroat Trout Oncorhynchus clarkii henshawi
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/3964
Threatened
Insects
NAME STATUS
Monarch Butterfly Danaus plexippus
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/9743
Candidate
Conifers and Cycads
NAME STATUS
Whitebark Pine Pinus albicaulis
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/1748
Proposed
Threatened
1
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Critical habitats
THERE ARE NO CRITICAL HABITATS WITHIN YOUR PROJECT AREA UNDER THIS OFFICE'S
JURISDICTION.
01/17/2022 Event Code: 08ENVD00-2022-E-00398 1
USFWS National Wildlife Refuge Lands And Fish
Hatcheries
Any activity proposed on lands managed by the National Wildlife Refuge system must undergo a
'Compatibility Determination' conducted by the Refuge. Please contact the individual Refuges to
discuss any questions or concerns.
THERE ARE NO REFUGE LANDS OR FISH HATCHERIES WITHIN YOUR PROJECT AREA.
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Migratory Birds
Certain birds are protected under the Migratory Bird Treaty Act and the Bald and Golden Eagle
Protection Act .
Any person or organization who plans or conducts activities that may result in impacts to
migratory birds, eagles, and their habitats should follow appropriate regulations and consider
implementing appropriate conservation measures, as described below.
The Migratory Birds Treaty Act of 1918.
The Bald and Golden Eagle Protection Act of 1940.
50 C.F.R. Sec. 10.12 and 16 U.S.C. Sec. 668(a)
The birds listed below are birds of particular concern either because they occur on the USFWS
Birds of Conservation Concern (BCC) list or warrant special attention in your project location.
To learn more about the levels of concern for birds on your list and how this list is generated, see
the FAQ below. This is not a list of every bird you may find in this location, nor a guarantee that
every bird on this list will be found in your project area. To see exact locations of where birders
and the general public have sighted birds in and around your project area, visit the E-bird data
mapping tool (Tip: enter your location, desired date range and a species on your list). For
projects that occur off the Atlantic Coast, additional maps and models detailing the relative
occurrence and abundance of bird species on your list are available. Links to additional
information about Atlantic Coast birds, and other important information about your migratory
bird list, including how to properly interpret and use your migratory bird report, can be found
below.
For guidance on when to schedule activities or implement avoidance and minimization measures
to reduce impacts to migratory birds on your list, click on the PROBABILITY OF PRESENCE
SUMMARY at the top of your list to see when these birds are most likely to be present and
breeding in your project area.
NAME
BREEDING
SEASON
Bald Eagle Haliaeetus leucocephalus
This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention
because of the Eagle Act or for potential susceptibilities in offshore areas from certain types
of development or activities.
https://ecos.fws.gov/ecp/species/1626
Breeds Jan 1 to
Aug 31
Black-throated Gray Warbler Dendroica nigrescens
This is a Bird of Conservation Concern (BCC) only in particular Bird Conservation Regions
(BCRs) in the continental USA
Breeds May 1
to Jul 20
1
2
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NAME
BREEDING
SEASON
Cassin's Finch Carpodacus cassinii
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA
and Alaska.
https://ecos.fws.gov/ecp/species/9462
Breeds May 15
to Jul 15
Clark's Grebe Aechmophorus clarkii
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA
and Alaska.
Breeds Jun 1 to
Aug 31
Evening Grosbeak Coccothraustes vespertinus
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA
and Alaska.
Breeds May 15
to Aug 10
Golden Eagle Aquila chrysaetos
This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention
because of the Eagle Act or for potential susceptibilities in offshore areas from certain types
of development or activities.
https://ecos.fws.gov/ecp/species/1680
Breeds Dec 1
to Aug 31
Long-eared Owl asio otus
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA
and Alaska.
https://ecos.fws.gov/ecp/species/3631
Breeds Mar 1
to Jul 15
Olive-sided Flycatcher Contopus cooperi
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA
and Alaska.
https://ecos.fws.gov/ecp/species/3914
Breeds May 20
to Aug 31
Willet Tringa semipalmata
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA
and Alaska.
Breeds Apr 20
to Aug 5
Probability Of Presence Summary
The graphs below provide our best understanding of when birds of concern are most likely to be
present in your project area. This information can be used to tailor and schedule your project
activities to avoid or minimize impacts to birds. Please make sure you read and understand the
FAQ "Proper Interpretation and Use of Your Migratory Bird Report" before using or attempting
to interpret this report.
Probability of Presence ()
Each green bar represents the bird's relative probability of presence in the 10km grid cell(s) your
project overlaps during a particular week of the year. (A year is represented as 12 4-week
months.) A taller bar indicates a higher probability of species presence. The survey effort (see
below) can be used to establish a level of confidence in the presence score. One can have higher
confidence in the presence score if the corresponding survey effort is also high.
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QRGDWDVXUYH\HIIRUWEUHHGLQJVHDVRQSUREDELOLW\RISUHVHQFH
How is the probability of presence score calculated? The calculation is done in three steps:
The probability of presence for each week is calculated as the number of survey events in
the week where the species was detected divided by the total number of survey events for
that week. For example, if in week 12 there were 20 survey events and the Spotted Towhee
was found in 5 of them, the probability of presence of the Spotted Towhee in week 12 is
0.25.
To properly present the pattern of presence across the year, the relative probability of
presence is calculated. This is the probability of presence divided by the maximum
probability of presence across all weeks. For example, imagine the probability of presence
in week 20 for the Spotted Towhee is 0.05, and that the probability of presence at week 12
(0.25) is the maximum of any week of the year. The relative probability of presence on
week 12 is 0.25/0.25 = 1; at week 20 it is 0.05/0.25 = 0.2.
The relative probability of presence calculated in the previous step undergoes a statistical
conversion so that all possible values fall between 0 and 10, inclusive. This is the
probability of presence score.
Breeding Season ()
Yellow bars denote a very liberal estimate of the time-frame inside which the bird breeds across
its entire range. If there are no yellow bars shown for a bird, it does not breed in your project
area.
Survey Effort ()
Vertical black lines superimposed on probability of presence bars indicate the number of surveys
performed for that species in the 10km grid cell(s) your project area overlaps. The number of
surveys is expressed as a range, for example, 33 to 64 surveys.
No Data ()
A week is marked as having no data if there were no survey events for that week.
Survey Timeframe
Surveys from only the last 10 years are used in order to ensure delivery of currently relevant
information. The exception to this is areas off the Atlantic coast, where bird returns are based on
all years of available data, since data in these areas is currently much more sparse.
SPECIES JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Bald Eagle
Non-BCC
Vulnerable
Black-throated
Gray Warbler
BCC - BCR
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Ƒ
Ƒ
Ƒ
Cassin's Finch
BCC Rangewide
(CON)
Clark's Grebe
BCC Rangewide
(CON)
Evening Grosbeak
BCC Rangewide
(CON)
Golden Eagle
Non-BCC
Vulnerable
Long-eared Owl
BCC Rangewide
(CON)
Olive-sided
Flycatcher
BCC Rangewide
(CON)
Willet
BCC Rangewide
(CON)
Additional information can be found using the following links:
Birds of Conservation Concern http://www.fws.gov/birds/management/managed-species/
birds-of-conservation-concern.php
Measures for avoiding and minimizing impacts to birds http://www.fws.gov/birds/
management/project-assessment-tools-and-guidance/
conservation-measures.php
Nationwide conservation measures for birds http://www.fws.gov/migratorybirds/pdf/
management/nationwidestandardconservationmeasures.pdf
Migratory Birds FAQ
Tell me more about conservation measures I can implement to avoid or minimize impacts
to migratory birds.
Nationwide Conservation Measures describes measures that can help avoid and minimize
impacts to all birds at any location year round. Implementation of these measures is particularly
important when birds are most likely to occur in the project area. When birds may be breeding in
the area, identifying the locations of any active nests and avoiding their destruction is a very
helpful impact minimization measure. To see when birds are most likely to occur and be breeding
in your project area, view the Probability of Presence Summary. Additional measures or permits
may be advisable depending on the type of activity you are conducting and the type of
infrastructure or bird species present on your project site.
What does IPaC use to generate the migratory birds potentially occurring in my specified
location?
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The Migratory Bird Resource List is comprised of USFWS Birds of Conservation Concern
(BCC) and other species that may warrant special attention in your project location.
The migratory bird list generated for your project is derived from data provided by the Avian
Knowledge Network (AKN). The AKN data is based on a growing collection of survey, banding,
and citizen science datasets and is queried and filtered to return a list of those birds reported as
occurring in the 10km grid cell(s) which your project intersects, and that have been identified as
warranting special attention because they are a BCC species in that area, an eagle (Eagle Act
requirements may apply), or a species that has a particular vulnerability to offshore activities or
development.
Again, the Migratory Bird Resource list includes only a subset of birds that may occur in your
project area. It is not representative of all birds that may occur in your project area. To get a list
of all birds potentially present in your project area, please visit the AKN Phenology Tool.
What does IPaC use to generate the probability of presence graphs for the migratory birds
potentially occurring in my specified location?
The probability of presence graphs associated with your migratory bird list are based on data
provided by the Avian Knowledge Network (AKN). This data is derived from a growing
collection of survey, banding, and citizen science datasets .
Probability of presence data is continuously being updated as new and better information
becomes available. To learn more about how the probability of presence graphs are produced and
how to interpret them, go the Probability of Presence Summary and then click on the "Tell me
about these graphs" link.
How do I know if a bird is breeding, wintering, migrating or present year-round in my
project area?
To see what part of a particular bird's range your project area falls within (i.e. breeding,
wintering, migrating or year-round), you may refer to the following resources: The Cornell Lab
of Ornithology All About Birds Bird Guide, or (if you are unsuccessful in locating the bird of
interest there), the Cornell Lab of Ornithology Neotropical Birds guide. If a bird on your
migratory bird species list has a breeding season associated with it, if that bird does occur in your
project area, there may be nests present at some point within the timeframe specified. If "Breeds
elsewhere" is indicated, then the bird likely does not breed in your project area.
What are the levels of concern for migratory birds?
Migratory birds delivered through IPaC fall into the following distinct categories of concern:
"BCC Rangewide" birds are Birds of Conservation Concern (BCC) that are of concern
throughout their range anywhere within the USA (including Hawaii, the Pacific Islands,
Puerto Rico, and the Virgin Islands);
"BCC - BCR" birds are BCCs that are of concern only in particular Bird Conservation
Regions (BCRs) in the continental USA; and
"Non-BCC - Vulnerable" birds are not BCC species in your project area, but appear on
your list either because of the Eagle Act requirements (for eagles) or (for non-eagles)
01/17/2022 Event Code: 08ENVD00-2022-E-00398 6
potential susceptibilities in offshore areas from certain types of development or activities
(e.g. offshore energy development or longline fishing).
Although it is important to try to avoid and minimize impacts to all birds, efforts should be made,
in particular, to avoid and minimize impacts to the birds on this list, especially eagles and BCC
species of rangewide concern. For more information on conservation measures you can
implement to help avoid and minimize migratory bird impacts and requirements for eagles,
please see the FAQs for these topics.
Details about birds that are potentially affected by offshore projects
For additional details about the relative occurrence and abundance of both individual bird species
and groups of bird species within your project area off the Atlantic Coast, please visit the
Northeast Ocean Data Portal. The Portal also offers data and information about other taxa besides
birds that may be helpful to you in your project review. Alternately, you may download the bird
model results files underlying the portal maps through the NOAA NCCOS Integrative Statistical
Modeling and Predictive Mapping of Marine Bird Distributions and Abundance on the Atlantic
Outer Continental Shelf project webpage.
Bird tracking data can also provide additional details about occurrence and habitat use
throughout the year, including migration. Models relying on survey data may not include this
information. For additional information on marine bird tracking data, see the Diving Bird Study
and the nanotag studies or contact Caleb Spiegel or Pam Loring.
What if I have eagles on my list?
If your project has the potential to disturb or kill eagles, you may need to obtain a permit to avoid
violating the Eagle Act should such impacts occur.
Proper Interpretation and Use of Your Migratory Bird Report
The migratory bird list generated is not a list of all birds in your project area, only a subset of
birds of priority concern. To learn more about how your list is generated, and see options for
identifying what other birds may be in your project area, please see the FAQ "What does IPaC
use to generate the migratory birds potentially occurring in my specified location". Please be
aware this report provides the "probability of presence" of birds within the 10 km grid cell(s) that
overlap your project; not your exact project footprint. On the graphs provided, please also look
carefully at the survey effort (indicated by the black vertical bar) and for the existence of the "no
data" indicator (a red horizontal bar). A high survey effort is the key component. If the survey
effort is high, then the probability of presence score can be viewed as more dependable. In
contrast, a low survey effort bar or no data bar means a lack of data and, therefore, a lack of
certainty about presence of the species. This list is not perfect; it is simply a starting point for
identifying what birds of concern have the potential to be in your project area, when they might
be there, and if they might be breeding (which means nests might be present). The list helps you
know what to look for to confirm presence, and helps guide you in knowing when to implement
conservation measures to avoid or minimize potential impacts from your project activities,
should presence be confirmed. To learn more about conservation measures, visit the FAQ "Tell
me about conservation measures I can implement to avoid or minimize impacts to migratory
birds" at the bottom of your migratory bird trust resources page.
01/17/2022 Event Code: 08ENVD00-2022-E-00398 1
Wetlands
Impacts to NWI wetlands and other aquatic habitats may be subject to regulation under Section
404 of the Clean Water Act, or other State/Federal statutes.
For more information please contact the Regulatory Program of the local U.S. Army Corps of
Engineers District.
Please note that the NWI data being shown may be out of date. We are currently working to
update our NWI data set. We recommend you verify these results with a site visit to determine
the actual extent of wetlands on site.
WETLAND INFORMATION WAS NOT AVAILABLE WHEN THIS SPECIES LIST WAS GENERATED.
PLEASE VISIT HTTPS://WWW.FWS.GOV/WETLANDS/DATA/MAPPER.HTML OR CONTACT THE FIELD
OFFICE FOR FURTHER INFORMATION.
Rana sierrae
Sierra Nevada yellow-legged frog
Element Code:AAABH01340
Federal:
State:
Endangered
Threatened
Listing Status:CNDDB Element Ranks:Global:
State:
G1
S1
Other:CDFW_WL-Watch List, IUCN_EN-Endangered, USFS_S-Sensitive
General:ALWAYS ENCOUNTERED WITHIN A FEW FEET OF WATER. TADPOLES MAY REQUIRE 2 - 4 YRS TO COMPLETE
THEIR AQUATIC DEVELOPMENT.
Micro:
Habitat:
71086EO Index:243Occurrence No.70205Map Index:1935-08-18Element Last Seen:
1935-08-18Site Last Seen:UnknownOcc. Rank:
Natural/Native occurrenceOcc. Type:
Presumed ExtantPresence:
UnknownTrend:2014-12-18Record Last Updated:
Woodfords (3811977), Freel Peak (3811978), Minden (3811987), South Lake Tahoe (3811988)Quad Summary:
Alpine, El DoradoCounty Summary:
38.87994 / -119.88147Lat/Long:
Zone-11 N4307401 E250044UTM:
T12N, R19E, Sec. 29 (M)PLSS:
4/5 mileAccuracy:
9000Elevation (ft):
0.0Acres:
0.5 MILE NE OF STAR LAKE, SE OF LAKE TAHOE.Location:
COLLECTION LOCALITY DESCRIBED AS "0.5 MI NE STAR LAKE" IN EL DORADO COUNTY. THE DRAINAGE NEAREST TO 0.5
MILE NE OF STAR LAKE IS THE HEAD OF STUTLER CANYON, JUST OVER THE COUNTY LINE INTO ALPINE COUNTY.
UNCERTAIN IF NW WAS MEANT.
Detailed Location:
Ecological:
COLLECTION MADE BY R. SMITH ON 18 AUG 1935.General:
USFS-TOIYABE NFOwner/Manager:
Quad<span style='color:Red'> IS </span>(South Lake Tahoe (3811988))<br /><span style='color:Red'> AND </span>(Federal Listing
Status<span style='color:Red'> IS </span>(Endangered<span style='color:Red'> OR </span>Threatened<span style='color:Red'> OR
</span>Proposed Endangered<span style='color:Red'> OR </span>Proposed Threatened<span style='color:Red'> OR
</span>Candidate<span style='color:Red'> OR </span>Delisted)<span style='color:Red'> OR </span>State Listing Status<span
style='color:Red'> IS </span>(Endangered<span style='color:Red'> OR </span>Threatened<span style='color:Red'> OR
</span>Rare<span style='color:Red'> OR </span>Delisted<span style='color:Red'> OR </span>Candidate Endangered<span
style='color:Red'> OR </span>Candidate Threatened))
Query Criteria:
Report Printed on Tuesday, January 18, 2022
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California Department of Fish and Wildlife
California Natural Diversity Database
Empidonax traillii
willow flycatcher
Element Code:ABPAE33040
Federal:
State:
None
Endangered
Listing Status:CNDDB Element Ranks:Global:
State:
G5
S1S2
Other:IUCN_LC-Least Concern, USFS_S-Sensitive, USFWS_BCC-Birds of Conservation Concern
General:INHABITS EXTENSIVE THICKETS OF LOW, DENSE WILLOWS ON EDGE OF WET MEADOWS, PONDS, OR
BACKWATERS; 2000-8000 FT ELEVATION.
Micro:REQUIRES DENSE WILLOW THICKETS FOR NESTING/ROOSTING. LOW, EXPOSED BRANCHES ARE USED FOR
SINGING POSTS/HUNTING PERCHES.
Habitat:
59201EO Index:124Occurrence No.59165Map Index:1935-06-29Element Last Seen:
1935-06-29Site Last Seen:UnknownOcc. Rank:
Natural/Native occurrenceOcc. Type:
Presumed ExtantPresence:
UnknownTrend:2005-01-07Record Last Updated:
South Lake Tahoe (3811988)Quad Summary:
El DoradoCounty Summary:
38.91453 / -119.97244Lat/Long:
Zone-11 N4311493 E242276UTM:
T12N, R18E, Sec. 03 (M)PLSS:
non-specific areaAccuracy:
6250Elevation (ft):
135.3Acres:
VICINITY OF TROUT CREEK IN LAKE VALLEY NEAR SIERRA HOUSE.Location:
11 EGG SET COLLECTIONS FROM "LAKE VALLEY, NEAR SIERRA HOUSE" AND 1 EGG SET COLLECTION FROM "TROUT
CREEK, NEAR SIERRA HOUSE".
Detailed Location:
Ecological:
MVZ #9088 - #9099. ALL COLLECTIONS BY MILTON RAY. 3 COLLECTIONS FROM 30 JUN 1910, 3 FROM 1 JUL 1910. 4
COLLECTIONS FROM 26-28 JUN 1912. 1 COLLECTION FROM 5 JUL 1922 & 1 COLLECTION FROM 29 JUN 1935.
General:
UNKNOWNOwner/Manager:
Rorippa subumbellata
Tahoe yellow cress
Element Code:PDBRA270M0
Federal:
State:
None
Endangered
Listing Status:CNDDB Element Ranks:Global:
State:
G1
S1
Other:Rare Plant Rank - 1B.1, SB_BerrySB-Berry Seed Bank, SB_CalBG/RSABG-California/Rancho Santa Ana Botanic
Garden, USFS_S-Sensitive
General:LOWER MONTANE CONIFEROUS FOREST, MEADOWS AND SEEPS.
Micro:SANDY BEACHES, ON LAKESIDE MARGINS AND IN RIPARIAN COMMUNITIES; ON DECOMPOSED GRANITE
SAND. 1895-2410 M.
Habitat:
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California Department of Fish and Wildlife
California Natural Diversity Database
8257EO Index:1Occurrence No.14462Map Index:2017-09-28Element Last Seen:
2017-09-28Site Last Seen:UnknownOcc. Rank:
Natural/Native occurrenceOcc. Type:
Presumed ExtantPresence:
UnknownTrend:2021-04-08Record Last Updated:
South Lake Tahoe (3811988)Quad Summary:
El DoradoCounty Summary:
38.95461 / -119.95451Lat/Long:
Zone-11 N4315892 E243976UTM:
T13N, R18E, Sec. 28, SE (M)PLSS:
specific areaAccuracy:
6232Elevation (ft):
19.0Acres:
FROM STATELINE SW TO BIJOU PARK, LAKE TAHOE.Location:
OCCURRENCE EXTENDS UP INTO NV. INCLUDES EDGEWOOD SITE (PORTIONS OF THIS SITE IN NEVADA NOT MAPPED),
TAHOE MEADOES SITE, AND BIJOU PARK SITE. MAPPED AS 3 POLYGONS ACCORDING TO A 1979 KNAPP MAP, 1981
FERREIRA MAP, AND 2017 TYC DIGITAL DATA.
Detailed Location:
IN BEACH SAND WITH PHACELIA FRIGIDA AND PHLOX SP. ALONG BEACH AND IN BANKS OF DITCH ENTERING LAKE. LAKE
INUNDATED IN 1979 AND 1982.
Ecological:
DETAILED POP INFO AVAILABLE AT CNDDB. PORTIONS OF SITE WERE SEEN IN 1979-1981, NO PLANTS IN 1982, SEEN IN
1990 & 1993, NO PLANTS IN 1994-1997, SEEN IN 1998-2009 AND 2017. INCLUDES FORMER EO #2 & #3.
General:
PVTOwner/Manager:
8255EO Index:4Occurrence No.14433Map Index:2015-06-09Element Last Seen:
2015-06-09Site Last Seen:GoodOcc. Rank:
Natural/Native occurrenceOcc. Type:
Presumed ExtantPresence:
UnknownTrend:2017-09-21Record Last Updated:
South Lake Tahoe (3811988)Quad Summary:
El DoradoCounty Summary:
38.94771 / -119.96571Lat/Long:
Zone-11 N4315157 E242981UTM:
T13N, R18E, Sec. 33, NW (M)PLSS:
specific areaAccuracy:
6230Elevation (ft):
6.0Acres:
TAHOE LAKESHORE LODGE, BETWEEN TIMBER COVE MARINA AND THE TAHOE MARINA INN, SOUTH LAKE TAHOE.Location:
TIMBER COVE SITE. ON THE PROPERTY OF TAHOE LAKESHORE LODGE AND SPA, 930 BALBIJOU RD. 2013 OBSERVATION
AT ELEVATION 6242' IS HIGHER THAN PREVIOUS POPULATIONS FOUND BETWEEN 6223' & 6230'; PLANTS TRANSPLANTED
TO TYC MITIGATION SITE.
Detailed Location:
ON DECOMPOSED GRANITE BEACH WITH SCATTERING OF GRASSES AND FORBS. COARSE SAND. ASSOCIATED WITH
ACHILLEA MILLEFOLIUM, CAREX DOUGLASII, CHAMOMILLA SUAVEOLENS, ERIOGONUM NUDUM, GAYOPHYTUM
DIFFUSUM, LEYMUS TRITICOIDES, LUPINUS LEPIDUS, ETC.
Ecological:
PLANTS SEEN IN 1981-1988 AND 1990, NO PLANTS FOUND IN 1993-2001, PLANTS SEEN IN 2002-2005, NO PLANTS IN 2006,
PLANTS SEEN IN 2007-2009, 2013 (214 PLANTS) & 2015 (304 PLANTS). ADDITIONAL POPULATION INFORMATION IS
AVAILABLE AT CNDDB.
General:
PVTOwner/Manager:
Report Printed on Tuesday, January 18, 2022
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California Department of Fish and Wildlife
California Natural Diversity Database
8251EO Index:5Occurrence No.14397Map Index:2019-06-12Element Last Seen:
2019-06-12Site Last Seen:GoodOcc. Rank:
Natural/Native occurrenceOcc. Type:
Presumed ExtantPresence:
UnknownTrend:2021-04-08Record Last Updated:
South Lake Tahoe (3811988), Emerald Bay (3812081)Quad Summary:
El DoradoCounty Summary:
38.94022 / -120.00389Lat/Long:
Zone-10 N4314412 E759682UTM:
T12N, R18E, Sec. 5, N (M)PLSS:
specific areaAccuracy:
6233Elevation (ft):
42.0Acres:
FROM REGAN BEACH WEST TO THE EAST END OF POPE BEACH, SOUTH LAKE TAHOE.Location:
INCLUDES THE FOLLOWING SITE NAMES: TAHOE KEYS, UPPER TRUCKEE WEST, UPPER TRUCKEE EAST, REGAN/AL
TAHOE, POPE BEACH, LIGHTHOUSE. PORTIONS OF OCCURRENCE MAY BE EXTIRPATED. MAPPED AS SEVERAL
POLYGONS BY CNDDB.
Detailed Location:
ON DECOMPOSED GRANITE BEACH, DENSE GROWTH OF RUSHES/GRASSES ABOVE BEACH, AND IN MOIST BACKSHORE
AREAS. WITH PHACELIA FRIGIDA, LEPIDIUM, SALIX, LUPINUS, AND GRASSES.
Ecological:
DETAILED POP INFO AVAILABLE AT CNDDB. PORTIONS OF SITE WERE SEEN IN 1979-1983, 1985, 1986, 1988, 1990-2010,
2017, 2019. INCLUDES FORMER EO #7, 8, 9, & 23.
General:
PVT, CTC, USFSOwner/Manager:
8254EO Index:6Occurrence No.14422Map Index:1979-XX-XXElement Last Seen:
2009-09-10Site Last Seen:NoneOcc. Rank:
Natural/Native occurrenceOcc. Type:
ExtirpatedPresence:
UnknownTrend:2021-04-08Record Last Updated:
South Lake Tahoe (3811988)Quad Summary:
El DoradoCounty Summary:
38.94545 / -119.97324Lat/Long:
Zone-11 N4314928 E242319UTM:
T13N, R18E, Sec. 32, SE (M)PLSS:
80 metersAccuracy:
6229Elevation (ft):
0.0Acres:
EL DORADO BEACH, BETWEEN BIJOU AND AL TAHOE, LAKE TAHOE.Location:
FOUND IN A HEAVILY USED PORTION OF THE BEACH, NEAR THE SECTION LINE BETWEEN SECTIONS 32 AND 33,
APPROXIMATELY 50 FT EAST OF A DRAINAGE CULVERT DISCHARGE ON THE BEACH. PLANT WAS WEDGED BETWEEN
TWO ROCKS IN AN AREA OF HEAVY FOOT TRAFFIC.
Detailed Location:
ON BEACH WEDGED BETWEEN ROCKS.Ecological:
1 PLANT SEEN IN 1979. NO PLANTS FOUND DURING SURVEYS IN 1980-1983, 1985, 1986, 1988, 1990, 1993-2009. SITE WAS
EXTENSIVELY DISTURBED IN THE EARLY 1980'S BY A BANK STABILIZATION PROJECT.
General:
PVT, CITY OF SOUTH LAKE TAHOEOwner/Manager:
Report Printed on Tuesday, January 18, 2022
Page 4 of 4Commercial Version -- Dated January, 1 2022 -- Biogeographic Data Branch
Information Expires 7/1/2022
Multiple Occurrences per Page
California Department of Fish and Wildlife
California Natural Diversity Database