Section 1 ONE Introduction [1-1](#section-1-1-introduction)

Section 2 TWO Purpose of and Need for Action
[2-1](#section-2-2-purpose-of-and-need-for-action)

Section 3 THREE Alternatives [3-1](#section-3-3-alternatives)

3.1 Alternatives Not Carried Forward
[3-1](#alternatives-not-carried-forward)

3.1.1 Acquisition and Relocation of the Mobile Home Parks
[3-1](#acquisition-and-relocation-of-the-mobile-home-parks)

3.1.2 Partial Acquisition of Mobile Homes
[3-1](#partial-acquisition-of-mobile-homes)

3.2 Alternative 1: No Action [3-2](#alternative-1-no-action)

3.3 Proposed Action Alternative: Construction of a Floodwall
[3-2](#proposed-action-alternative-construction-of-a-floodwall)

3.3.1 Floodwall [3-2](#floodwall)

3.3.2 Entrance Closure Structures [3-3](#entrance-closure-structures)

3.3.3 Interior Storm Drainage Facilities
[3-4](#interior-storm-drainage-facilities)

3.3.4 Sewer Rehabilitation [3-4](#sewer-rehabilitation)

3.3.5 Construction Access and Staging
[3-4](#construction-access-and-staging)

3.4 Alternative 3: Mobile Home Elevations
[3-5](#alternative-3-mobile-home-elevations)

3.5 Summary of Alternatives, Impacts, and Mitigations
[3-6](#summary-of-alternatives-impacts-and-mitigations)

Section 4 FOUR Affected Environment, Impacts, and Mitigation
[4-1](#section-4-4-affected-environment-impacts-and-mitigation)

4.1 Biological Resources [4-1](#biological-resources)

4.1.1 Vegetation and Wildlife [4-1](#vegetation-and-wildlife)

4.1.2 Special Status Species [4-2](#special-status-species)

4.1.3 Alternative 1: No Action [4-23](#alternative-1-no-action-1)

4.1.4 Proposed Action Alternative: Construction of a Floodwall
[4-24](#proposed-action-alternative-construction-of-a-floodwall-1)

4.1.5 Alternative 3: Mobile Home Elevations
[4-25](#alternative-3-mobile-home-elevations-1)

4.2 Geology and Soils [4-25](#geology-and-soils)

4.2.1 Alternative 1: No Action [4-26](#alternative-1-no-action-2)

4.2.2 Proposed Action Alternative: Construction of a Floodwall
[4-26](#proposed-action-alternative-construction-of-a-floodwall-2)

4.2.3 Alternative 3: Mobile Home Elevations
[4-26](#alternative-3-mobile-home-elevations-2)

4.3 Water Resources [4-26](#water-resources)

4.3.1 Alternative 1: No Action [4-27](#alternative-1-no-action-3)

4.3.2 Proposed Action Alternative: Construction of a Floodwall
[4-27](#proposed-action-alternative-construction-of-a-floodwall-3)

4.3.3 Alternative 3: Mobile Home Elevations
[4-29](#alternative-3-mobile-home-elevations-3)

4.3.4 Executive Order 11988: Floodplain Management
[4-29](#executive-order-11988-floodplain-management)

4.3.5 Executive Order 11990: Protection of Wetlands
[4-30](#executive-order-11990-protection-of-wetlands)

4.4 Cultural Resources [4-31](#cultural-resources)

4.4.1 Alternative 1: No Action [4-31](#alternative-1-no-action-6)

4.4.2 Proposed Action Alternative: Construction of a Floodwall
[4-31](#proposed-action-alternative-construction-of-a-floodwall-6)

4.4.3 Alternative 3: Mobile Home Elevations
[4-32](#alternative-3-mobile-home-elevations-6)

4.5 Socioeconomics and Safety [4-32](#socioeconomics-and-safety)

4.5.1 Alternative 1: No Action [4-33](#alternative-1-no-action-7)

4.5.2 Proposed Action Alternative: Construction of a Floodwall
[4-33](#proposed-action-alternative-construction-of-a-floodwall-7)

4.5.3 Alternative 3: Mobile Home Elevations
[4-33](#alternative-3-mobile-home-elevations-7)

4.5.4 Executive Order 12699: Seismic Safety
[4-34](#executive-order-12699-seismic-safety)

4.5.5 Executive Order 12898: Environmental Justice
[4-34](#executive-order-12898-environmental-justice)

4.6 Land Use and Zoning [4-35](#land-use-and-zoning)

4.6.1 Alternative 1: No Action [4-36](#alternative-1-no-action-10)

4.6.2 Proposed Action Alternative: Construction of a Floodwall
[4-36](#proposed-action-alternative-construction-of-a-floodwall-10)

4.6.3 Alternative 3: Mobile Home Elevations
[4-37](#alternative-3-mobile-home-elevations-10)

4.7 Public Services and Utilities [4-37](#public-services-and-utilities)

4.7.1 Alternative 1: No Action [4-37](#alternative-1-no-action-11)

4.7.2 Proposed Action Alternative: Construction of a Floodwall
[4-37](#proposed-action-alternative-construction-of-a-floodwall-11)

4.7.3 Alternative 3: Mobile Home Elevations
[4-38](#alternative-3-mobile-home-elevations-11)

4.8 Air Quality [4-38](#air-quality)

4.8.1 Alternative 1: No Action [4-38](#alternative-1-no-action-12)

4.8.2 Proposed Action Alternative: Construction of a Floodwall
[4-38](#proposed-action-alternative-construction-of-a-floodwall-12)

4.8.3 Alternative 3: Mobile Home Elevations
[4-39](#alternative-3-mobile-home-elevations-12)

4.9 Noise [4-39](#noise)

4.9.1 Alternative 1: No Action [4-39](#alternative-1-no-action-13)

4.9.2 Proposed Action Alternative: Construction of a Floodwall
[4-39](#proposed-action-alternative-construction-of-a-floodwall-13)

4.9.3 Alternative 3: Mobile Home Elevations
[4-40](#alternative-3-mobile-home-elevations-13)

4.10 Transportation [4-41](#transportation)

4.10.1 Alternative 1: No Action [4-41](#alternative-1-no-action-14)

4.10.2 Proposed Action Alternative: Construction of a Floodwall
[4-41](#proposed-action-alternative-construction-of-a-floodwall-14)

4.10.3 Alternative 3: Mobile Home Elevations
[4-41](#alternative-3-mobile-home-elevations-14)

4.11 Visual Resources [4-42](#visual-resources)

4.11.1 Alternative 1: No Action [4-42](#alternative-1-no-action-15)

4.11.2 Proposed Action Alternative: Construction of a Floodwall
[4-42](#proposed-action-alternative-construction-of-a-floodwall-15)

4.11.3 Alternative 3: Mobile Home Elevations
[4-42](#alternative-3-mobile-home-elevations-15)

4.12 Cumulative Impacts [4-42](#cumulative-impacts)

Section 5 FIVE Consultation and Permit Requirements
[5-1](#section-5-5-consultation-and-permit-requirements)

Section 6 SIX References [6-1](#section-6-6-references)

Section 7 SEVEN List of Preparers [7-1](#section-7-7-list-of-preparers)

List of Tables

1.  Summary of Impacts and Mitigations

2.  Special Status Species That Potentially Occur in the Project
    Vicinity

3.  Comparison of Environmental Justice Indicators

List of Figures

1 Project Vicinity

2 Project Area

3 100-Year Floodplain Area: Rancho de Napa and Gateway Mobile Home Parks

4 Proposed Action Alternative: Floodwall Site Plan

5.  Alternative 3: Mobile Home Elevations

6.  Photographs of Proposed Floodwall Alignment (South and West)

7.  Photographs of Proposed Floodwall Alignment (North and East)

8.  Photographs of Mobile Home Parks Entrances

List of Appendices

A U.S. Fish and Wildlife Service Tier 1 Concurrence Letter

B National Marine Fisheries Service Letter

C Federal Emergency Management Agency CLOMR Letter

D U.S. Army Corps of Engineers Letter

E State Historic Preservation Officer Letter

List of Acronyms

  -------------- --------------------------------------------------------
  APE            Area of Potential Effect

  BAAQMD         Bay Area Air Quality Management District

  CCC            Central California Coast (steelhead)

  CFR            Code of Federal Regulations

  cfs            cubic feet per second

  CLOMR          Conditional Letter of Map Revision

  CMU            cellular masonry unit

  dBA            decibels A-weighted

  EA             Environmental Assessment

  EO             Executive Order

  ESU            Evolutionarily Significant Unit

  FEMA           Federal Emergency Management Agency

  FIRM           Flood Insurance Rate Map

  HMGP           Hazard Mitigation Grant Program

  NAHC           Native American Heritage Commission

  NEPA           National Environmental Policy Act of 1969

  NFIP           National Flood Insurance Program

  NHPA           National Historic Preservation Act

  NMFS           National Marine Fisheries Service

  NRHP           National Register of Historic Places

  NWIC           Northwest Information Center

  OES            California Governor's Office of Emergency Services

  PM-10          particulate matter with an aerodynamic diameter of 10
                 microns or less

  SHPO           State Historic Preservation Officer

  SR 29          State Route 29

  URS            URS Corporation

  USACE          U.S. Army Corps of Engineers

  USFWS          U.S. Fish and Wildlife Service

  USGS           U.S. Geological Survey
  -------------- --------------------------------------------------------

# Section 1 1 Introduction

The Town of Yountville, California, has applied, through the California
Governor's Office of Emergency Services (OES), to the Federal Emergency
Management Agency (FEMA) for assistance with the construction of a flood
barrier to protect two mobile home parks from periodic flooding. FEMA is
proposing to provide assistance for this project through the Hazard
Mitigation Grant Program (HMGP) under Presidential Disaster Declaration
FEMA-DR-1044-CA. This Environmental Assessment (EA) has been prepared
according to the requirements of the National Environmental Policy Act
of 1969 (NEPA), the Council on Environmental Quality's regulations for
implementing NEPA (Title 40 of the Code of Federal Regulations \[CFR\]
Parts 1500-1508), and FEMA's implementing regulations (Title 44 CFR Part
10).

The Yountville Mobile Home Park Flood Barrier Project (Project) would
surround the Rancho de Napa and Gateway Mobile Home Parks in the
southeast corner of the town of Yountville, California (Figures 1 and
2). The Town of Yountville is approximately 9 miles north of the city of
Napa along State Route 29 (SR 29). The mobile home parks are located
within the 100-year floodplain of the Napa River. The elevations of the
mobile home parks range from 80 feet in the southeast corner of the
Gateway Mobile Home Park to 86 feet in the northwest corner of the
Rancho de Napa Mobile Home Park. They are bordered on the west by Hopper
Creek and on the east by Beard Ditch (Figure 3). To the north and south
are local drainage ditches that carry surface runoff from the mobile
home parks and adjacent properties to Beard Ditch.

# Section 2 2 Purpose of and Need for Action

The objective of FEMA's HMGP is to reduce the loss of life and property
due to natural disasters and to enable long-term hazard mitigation
measures to be implemented during the immediate recovery from a
disaster. Through this program, FEMA provides grants to states, local
governments, tribal governments, and U.S. territories to implement
hazard mitigation projects after the declaration of a major disaster.
The purpose of this project is to provide funding to the Town of
Yountville to implement a cost-effective hazard mitigation project.

Since the mid-1960s, the Rancho de Napa and Gateway Mobile Home Parks
have sustained damage from floods on a regular basis, necessitating the
evacuation of residents. Recent evacuations include two in 1995 and one
in 1997. Anticipated flood events over the next 20 years would continue
to cause damage to the mobile home parks, their structures and contents,
vehicles, and infrastructure at an estimated cost of almost \$6 million.
After including the costs of disruption to the local economy, rescue
services, and other expenses, the total cost of anticipated flood
damages could be over \$8 million. The Town of Yountville has identified
the need to protect the mobile home parks' residents and their 317
mobile homes from damages due to the periodic flooding of the Napa
River.

Action is needed to:

1.  Protect the Rancho de Napa and Gateway Mobile Home Parks from future
    flooding events and remove the two mobile home parks from the
    100-year floodplain of the Napa River.

2.  Provide adequate interior drainage facilities to keep the residual
    interior floodplain in the parks below a 1-foot depth.

# Section 3 3 Alternatives

## Alternatives Not Carried Forward

### Acquisition and Relocation of the Mobile Home Parks

This alternative would consist of the voluntary property acquisition and
voluntary relocation of 317 mobile homes located in the Gateway and
Rancho de Napa Mobile Home Parks. This alternative would also involve
relocation of community facilities currently present in the parks,
replacement of associated infrastructure, and restoration of the mobile
home parks' site to an undeveloped state. Mobile homes would be
relocated where feasible, or existing structures would be demolished and
replaced with new homes on another site. Property acquisition of both
mobile home parks would require acquisition and subsequent relocation on
an approximately 40-acre site.

There is no available site within the Town of Yountville of sufficient
size, development opportunity, or cost that would allow for the
wholesale relocation of the two mobile home parks. There are also no
opportunities for the Town to annex additional lands for the purpose of
development due to a Napa County ordinance requiring the preservation of
all agricultural lands outside of the Town's corporate limits. Existing
mobile home parks within Napa County cannot accommodate relocation of
approximately 317 residents, either in whole or in part. Given that
these mobile home parks have been an established part of the Yountville
community since the mid 1960s, and represent one-third of the Town's
overall housing stock (and a significant portion of the Town's
affordable housing), relocation of such a substantial portion of the
Town's residents out of an established and cohesive community is not
feasible.

Additionally, both park owners would not agree to voluntary sale.
Therefore, the Town would be required to condemn the property and use
its powers of eminent domain to acquire the mobile home parks. This
action would not conform to FEMA funding criteria and would render this
alternative ineligible for federal funds.

From the information outlined in the Town's initial application for FEMA
HMGP funding in 1995, it was assumed that the cost of acquiring the
mobile home parks would be \$50,000 per space or more than \$15.8
million for the two parks. That per unit cost factor included the cost
of the land, the mobile homes, the removal of existing structures and
infrastructure, site restoration and ongoing maintenance, and liability.
Additional costs would be incurred, including relocation of the park
residents (\$15,000 to \$20,000 per unit) and potential costs of
condemnation. Given current real estate values, the initial cost
estimate would most likely triple in value, making the cost of this
alternative approximately \$50 million dollars, assuming that a site is
available. These financial issues, including ineligibility for FEMA
funding, render this alternative infeasible.

### Partial Acquisition of Mobile Homes

This alternative is a variation on the preceding alternative. It
considers the potential issues and costs associated with acquiring only
those portions of the two mobile home parks that are most susceptible to
flood and associated damage. It is estimated that there are 40 to 50
mobile home spaces in the two parks that are most prone to severe flood
damages.

To the extent that unoccupied spaces are available within the parks at
the time of relocation, the disruption to the community under this
alternative could be minimized. However, there are insufficient spaces
available to accommodate relocation of 40 to 50 homes within the parks
at one time. Acquisition costs were originally estimated at over \$3
million plus relocation costs estimated at \$750,000. As in the
preceding alternative, these costs would be significantly higher under
current real estate market conditions (over \$6 million). Property
owners indicated that they would not support even a partial acquisition,
thus requiring condemnation proceedings that would also make this
alternative infeasible.

It was estimated that approximately 5 to 7 acres of land would be
required to relocate 40 to 50 mobile home spaces. No site is available
in Yountville without changes to the general plan and current zoning.
There are no known available sites in other Napa County cities with
appropriate zoning or political support that would enable the Town to
relocate 40 to 50 mobile home units. This alternative would also result
in significant disruption to the community and would substantially
reduce Yountville's limited affordable housing opportunities.

## Alternative 1: No Action

Under the No Action Alternative, FEMA would not provide funding to the
Town of Yountville for flood hazard mitigation at the Rancho de Napa and
Gateway Mobile Home Parks. No structural improvements would be
implemented to protect the parks from flood hazards, and they would
remain within the 100-year floodplain. Mobile home elevations would
continue to be required to meet the Town of Yountville's Flood Ordinance
and federal requirements. The Town of Yountville would implement
Town-wide drainage improvements, including creek maintenance at the west
end of the parks, but this would not protect the parks from the
projected periodic flooding damage, especially from the Napa River. The
anticipated damages due to flooding would not be mitigated.

## Proposed Action Alternative: Construction of a Floodwall

The Proposed Action consists of three primary parts: (1) construction of
a masonry floodwall around most of the mobile home parks that closely
matches the alignment of the existing perimeter fence, (2) construction
of closure structures at the parks' two entrances to provide flood
protection at these locations, and (3) installation of interior storm
drainage facilities consisting of storm drain lines, a drainage
collection basin, and a pump station to handle storm water that falls
within the parks. Improvements to the existing sewer mains are also
proposed to prevent sewage backup. These project elements are presented
in Figure 4.

### Floodwall

A 10-inch-wide floodwall would be constructed of earth-colored blocks
known as cellular masonry units (CMUs). These hollow blocks would be
filled with concrete and reinforcement. A combination of flat-face and
split-face blocks would be arranged in an aesthetically pleasing visual
pattern. Based on hydraulic calculations, the height of the wall would
vary from 9 feet to 2 feet depending on the ground surface elevation and
location within the floodplain. The height of the wall includes 3 feet
of "freeboard" above the base flood elevation, as required by FEMA. A
Section of the northwestern corner of Rancho de Napa is located outside
of the floodplain limits and does not require a wall. However, a smaller
2-foot wall would be provided in this area for protection against floods
that exceed the level of the 100-year event. The 2-foot wall would also
protect against any out of bank flows from Hopper Creek that might occur
if the Mission Drive or Champagne Drive culverts clog.

The floodwall would be underpinned with a cutoff wall approximately 4
feet deep to prevent seepage or fast-flowing water from undermining the
wall's foundation. The foundation would consist of 18-inch-diameter
piles drilled 25 feet deep and placed 6 feet on center. The foundation
work would involve the drilling and pouring of caissons at 6 feet on
center around the perimeter of the mobile home parks and the pouring of
the concrete cut off wall. The concrete blocks and capstones would then
be manually set in place to complete the wall.

The majority of the wall alignment would follow the perimeter property
line with the outside face of the wall foundation on the property line.
Some exceptions to this alignment would be necessary for avoidance of
existing utilities and trees:

-   The alignment along the southern property line would follow the
    property as stated. This portion of the wall would range in height
    from 5 feet near the southern corner to 9 feet at the southeastern
    corner.

-   At the southeast corner of the mobile home parks, the floodwall
    would jog approximately 106 feet south to include approximately one
    half acre of Town owned property to be used for the storm water
    collection basin and pump station.

-   To the east, along Beard Ditch, the wall would deviate from the
    property line, which is near the toe of the ditch. The wall would be
    constructed slightly east of the existing fence to provide
    sufficient clearance from the adjacent mobile homes, but at the top
    of bank (or on the slope) between the property line and the sewer
    line that runs along the existing fence.

-   Along the north property line, the wall would follow the existing
    fence line. The wall would begin as an 8-foot wall at the northeast
    corner and finish as a 2-foot wall at the northwestern corner.

-   Along Hopper Creek, on the west side of the parks, the floodwall
    would follow the existing fence and parallel the existing
    pedestrian/bike path. Due to limited clearance from nearby mobile
    homes in some places, the wall would be constructed on the top of
    the creek bank within the Hopper Creek Setback Area. The wall would
    reduce the size of some backyards but by less than 1 foot, except
    where necessary to protect existing trees. The wall height along the
    western property boundary would be lower: 2 feet where the park is
    no longer within the floodplain (at the northwestern corner) and 5
    feet at the southwestern corner.

### Entrance Closure Structures

The parks have two vehicular entrances: one at Mission Street (to the
Rancho de Napa park) and one at Champagne Drive (to the Gateway park).
Removable flashboard closure structures are proposed at these entrances
to complete the flood barrier around the parks during very high floods.
The flashboard structures would consist of metal stop-logs, sandbags,
and plastic sheeting. Construction of these structures would require
minimal ground disturbance within the paved area for footings about 2
feet deep and 2 feet wide. During most flood events, the roads into the
parks could remain open and evacuation would not be necessary. In very
high water, however, if the entry roads flood or are in danger of
flooding, evacuation would be required and the closure structures would
be put in place. Once they are in place, no provision for vehicular or
pedestrian access to either mobile home park would be available.

### Interior Storm Drainage Facilities 

To collect storm water that falls within the two mobile home parks, the
construction of two storm drain lines, a drainage collection basin, and
a pump station is proposed. The first storm drain line would replace the
surface drainage ditch at the Gateway Mobile Home Park; the second line
would replace the portions of the drainage pipes in the Rancho de Napa
park. The storm water flowing through these underground pipes would be
directed to a collection basin in the southeast corner of the mobile
home parks. Low flows would drain through a gravity pipe into Beard
Ditch. During large storms, the pump station would pump the water
through the floodwall, onto an energy dissipater, and into Beard Ditch.

Because the drainage basin would be small, the pump station must be
correspondingly large. It would be sized to handle peak runoff during a
100-year rainstorm, with two pumps to handle the 100-year peak flow rate
and a third as a backup. The pumps would turn on and off automatically
when the water level in the drainage basin reaches certain elevations
set using a programmable logic controller. The first pump would turn on
when the water level in the drainage basin reaches an elevation of 78.00
feet above mean sea level and off at an elevation of 75.50 feet above
mean sea level. The second pump would turn on when the water level in
the drainage basin reaches an elevation of 78.50 feet above mean sea
level and off at an elevation of 74.75 feet above mean sea level. The
pump station would also have a backup diesel generator to allow for
operation during a power outage.

### Sewer Rehabilitation

The Proposed Action would also include some modifications to the Town's
existing sewer mains within the mobile home parks to prevent sewage
backup. Two main lines are located in the parks: one near the western
side of the parks and the other next to Beard Ditch. Many interior
sanitary lines intersect and drain into these two main lines. At each
intersection, the potential for sewage to back up into the mobile home
parks exists due to hydraulic pressure generated by floodwater outside
the wall. To prevent this from happening, backflow check valves would be
installed at each interSection (14 connections). Each installation would
involve an area of excavation approximately 3 feet by 3 feet and 4 to 5
feet deep. In addition, the top of each Town sewer main manhole in the
mobile home parks would be reconstructed so that it can withstand sewer
pressures without leaking.

### Construction Access and Staging

Two construction staging areas are proposed. The first is at the
northeastern corner of Rancho de Napa park within a paved motor home
parking lot. The motor homes would be parked elsewhere for the duration
of construction activities to allow for the storage of construction
materials and equipment. The second staging area is proposed at the
southeastern corner of the site near the proposed drainage basin and
pump station.

Access along the northern boundary adjacent to the vineyard properties
and the western boundary along Hopper Creek is severely limited. Access
to the northern wall would be along San Carlos Street within the Rancho
de Napa development from the northwest corner to the clubhouse.
Construction workers would have to access the wall through the yards of
the mobile home residences along this reach. From the clubhouse to the
northeast corner, small vehicular access is available between the
existing Rancho de Napa fence and the fence line of the vineyard
properties. Temporary easements would be obtained along this reach.

Access for construction of the floodwall along Hopper Creek would be
necessary from across the creek, from the channel bottom (during the dry
season), and through the yards of the mobile homes. Vehicular access
would be limited to the on-site streets and open lots under the same
ownership across the creek from the wall. Access to the northwest corner
of the wall and Hopper Creek may occur via Oak Circle to just east of
Hopper Creek, but Oak Circle east of Heather Street will not be used for
construction access.

The south and east walls can be accessed directly from adjacent land
either by paved street or parking on-site, or along vineyard roadways
from outside the property. Access along the outside vineyard roads would
be necessary for much of the east wall. Access from the channel bottom
of Beard Ditch would be necessary, but the ditch is relatively shallow
and is mostly dry during the construction season. Along the south wall,
access from outside the property is necessary over a shorter distance,
mostly to the west. Temporary easements would be obtained from the
vineyard owners for both wall reaches.

Vehicular access for construction would primarily occur from Washington
Street via Mission Street or Champagne Drive. Additional access would be
provided via Land Lane at the southeastern corner of the parks.

## Alternative 3: mobile Home Elevations

Under Alternative 3, FEMA would provide funding to the Town of
Yountville for the elevation of 84 mobile homes, all of which are within
the Rancho de Napa Mobile Home Park (Figure 5). These homes were
identified for elevation because their existing floor elevation is below
the finished floor elevation (86 .6 feet above mean sea level) required
by the Town of Yountville's Flood Ordinance and federal standards. The
technique used to elevate these homes would be to add to the foundation
height, thereby raising the lowest floor of the homes to 1 foot above
the base flood elevation. This action would result in minor ground
disturbance for spot tie downs of the foundations. The elevation actions
would only apply to the mobile homes; ancillary structures (such as
carports, utility connections, stairs/steps, and skirting) would not be
included. Residents would be temporarily relocated during the mobile
home elevation work. The construction staging for each home elevation
would be limited to the area and street immediately adjacent to the
home.

The Town of Yountville would manage the elevation actions. The Rancho de
Napa Mobile Home Park owners, who control the land, would need to sign
off on the deed restrictions required by FEMA for the elevation of the
homes. Elevation of ancillary structures would be optional and would be
the responsibility of the residents who own the mobile homes.

The remaining mobile homes in the Rancho de Napa and Gateway Mobile Home
Parks would not be elevated because their lowest floor elevations are
above the base flood elevation and therefore in compliance with the Town
of Yountville Flood Ordinance and federal requirements. Homes installed
in the mobile home parks since 1995 have been elevated so that their
lowest floor elevations are above the appropriate base flood elevation.

## summary of alternatives, impacts, and mitigations

Table 1 summarizes the alternative evaluated in this EA and the
resulting impacts and mitigations in the various resource areas.

+-------------+---+------------------+---+--------------------+---------------+
| **Table     |   |                  |   |                    |               |
| 1**\        |   |                  |   |                    |               |
| **Summary   |   |                  |   |                    |               |
| of Impacts  |   |                  |   |                    |               |
| and         |   |                  |   |                    |               |
| Mi          |   |                  |   |                    |               |
| tigations** |   |                  |   |                    |               |
+=============+===+==================+===+====================+===============+
|             |   | **No Action\     |   | **Construction of  | **Mobile Home |
|             |   | (Alternative     |   | a Floodwall\       | Elevations    |
|             |   | 1)**             |   | (Proposed Action   | (Alternative  |
|             |   |                  |   | Alternative)**     | 3)**          |
+-------------+---+------------------+---+--------------------+---------------+
|             | * |                  |   |                    |               |
|             | * |                  |   |                    |               |
|             | D |                  |   |                    |               |
|             | e |                  |   |                    |               |
|             | s |                  |   |                    |               |
|             | c |                  |   |                    |               |
|             | r |                  |   |                    |               |
|             | i |                  |   |                    |               |
|             | p |                  |   |                    |               |
|             | t |                  |   |                    |               |
|             | i |                  |   |                    |               |
|             | o |                  |   |                    |               |
|             | n |                  |   |                    |               |
|             | o |                  |   |                    |               |
|             | f |                  |   |                    |               |
|             | A |                  |   |                    |               |
|             | l |                  |   |                    |               |
|             | t |                  |   |                    |               |
|             | e |                  |   |                    |               |
|             | r |                  |   |                    |               |
|             | n |                  |   |                    |               |
|             | a |                  |   |                    |               |
|             | t |                  |   |                    |               |
|             | i |                  |   |                    |               |
|             | v |                  |   |                    |               |
|             | e |                  |   |                    |               |
|             | s |                  |   |                    |               |
|             | * |                  |   |                    |               |
|             | * |                  |   |                    |               |
+-------------+---+------------------+---+--------------------+---------------+
|             |   | FEMA would not   | A |                    | 84 mobile     |
|             |   | provide funding  | f |                    | homes would   |
|             |   | to the Town of   | l |                    | be raised 1   |
|             |   | Yountville for   | o |                    | foot above    |
|             |   | flood hazard     | o |                    | the base      |
|             |   | mitigation       | d |                    | flood         |
|             |   | around the       | w |                    | elevations in |
|             |   | mobile home      | a |                    | compliance    |
|             |   | parks. The parks | l |                    | with the Town |
|             |   | would remain     | l |                    | of Yountville |
|             |   | within the       | a |                    | Flood         |
|             |   | 100-year         | n |                    | Ordinance and |
|             |   | floodplain of    | d |                    | FEMA          |
|             |   | the Napa River.  | a |                    | standards.    |
|             |   |                  | n |                    |               |
|             |   |                  | c |                    |               |
|             |   |                  | i |                    |               |
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|             |   |                  | f |                    |               |
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|             |   |                  | d |                    |               |
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|             |   |                  | g |                    |               |
|             |   |                  | o |                    |               |
|             |   |                  | f |                    |               |
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|             |   |                  | h |                    |               |
|             |   |                  | e |                    |               |
|             |   |                  | N |                    |               |
|             |   |                  | a |                    |               |
|             |   |                  | p |                    |               |
|             |   |                  | a |                    |               |
|             |   |                  | R |                    |               |
|             |   |                  | i |                    |               |
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|             |   |                  | e |                    |               |
|             |   |                  | r |                    |               |
|             |   |                  | . |                    |               |
+-------------+---+------------------+---+--------------------+---------------+
| **Resource  |   | **Potential      |   |                    |               |
| Areas**     |   | Impacts and      |   |                    |               |
|             |   | Mitigations**    |   |                    |               |
+-------------+---+------------------+---+--------------------+---------------+
| Biological  |   | No Impacts.      |   | Impacts to         | No Impacts.   |
| Resources   |   |                  |   | vegetation,        |               |
|             |   |                  |   | wildlife, and      |               |
|             |   |                  |   | special status     |               |
|             |   |                  |   | species mitigated  |               |
|             |   |                  |   | by avoidance       |               |
|             |   |                  |   | and/or mitigation  |               |
|             |   |                  |   | measures.          |               |
+-------------+---+------------------+---+--------------------+---------------+
| Geology and |   | No Impacts.      |   | No Impacts.        | No Impacts.   |
| Soils       |   |                  |   |                    |               |
+-------------+---+------------------+---+--------------------+---------------+
| Water       |   | No direct        |   | Impacts to water   | Impacts to    |
| Resources   |   | impacts. Water   |   | resources          | water         |
|             |   | quality          |   | mitigated by       | resources     |
|             |   | potentially      |   | avoidance and      | mitigated by  |
|             |   | impacted by      |   | erosion control    | avoidance and |
|             |   | future flood     |   | measures;          | erosion       |
|             |   | events that may  |   | negligible impacts | control       |
|             |   | transport        |   | to floodplains.    | measures;     |
|             |   | household        |   | Action would       | negligible    |
|             |   | hazardous wastes |   | reduce potential   | impacts to    |
|             |   | and other        |   | transport of       | floodplains.  |
|             |   | pollutants into  |   | household          |               |
|             |   | Hopper Creek or  |   | hazardous wastes   |               |
|             |   | Beard Ditch.     |   | and other          |               |
|             |   |                  |   | pollutants into    |               |
|             |   |                  |   | Hopper Creek and   |               |
|             |   |                  |   | Beard Ditch.       |               |
+-------------+---+------------------+---+--------------------+---------------+
| Cultural    |   | No Impacts.      |   | Potential impacts  | No Impacts.   |
| Resources   |   |                  |   | mitigated by       |               |
|             |   |                  |   | instructing crews  |               |
|             |   |                  |   | and stopping work  |               |
|             |   |                  |   | if cultural        |               |
|             |   |                  |   | resources are      |               |
|             |   |                  |   | discovered.        |               |
+-------------+---+------------------+---+--------------------+---------------+
| Soc         |   | Potential        |   | Displacement of    | Temporary     |
| ioeconomics |   | impacts from     |   | one mobile home    | relocation of |
| and Safety  |   | future flood     |   | unit. Action       | residents     |
|             |   | events.          |   | provides permanent | during        |
|             |   |                  |   | flood protection,  | elevation     |
|             |   |                  |   | lowers insurance   | activities.   |
|             |   |                  |   | costs, and raises  | Additional    |
|             |   |                  |   | property values.   | costs for     |
|             |   |                  |   |                    | residents of  |
|             |   |                  |   |                    | mobile home   |
|             |   |                  |   |                    | park. Action  |
|             |   |                  |   |                    | provides      |
|             |   |                  |   |                    | permanent     |
|             |   |                  |   |                    | flood         |
|             |   |                  |   |                    | protection,   |
|             |   |                  |   |                    | lowers        |
|             |   |                  |   |                    | insurance     |
|             |   |                  |   |                    | costs, and    |
|             |   |                  |   |                    | raises        |
|             |   |                  |   |                    | property      |
|             |   |                  |   |                    | values.       |
+-------------+---+------------------+---+--------------------+---------------+
| Land Use    |   | No Impacts.      |   | Consistent with    | No Impacts.   |
| and Zoning  |   |                  |   | applicable         |               |
|             |   |                  |   | policies of        |               |
|             |   |                  |   | Yountville General |               |
|             |   |                  |   | Plan. Requires a   |               |
|             |   |                  |   | waiver of          |               |
|             |   |                  |   | Creekside Overlay  |               |
|             |   |                  |   | District. Requires |               |
|             |   |                  |   | a waiver of        |               |
|             |   |                  |   | Yountville Zoning  |               |
|             |   |                  |   | Ordinance          |               |
|             |   |                  |   | Section 7.5(b) for |               |
|             |   |                  |   | wall height.       |               |
+-------------+---+------------------+---+--------------------+---------------+
| Public      |   | Potential        |   | Emergency response | Potential     |
| Services    |   | impacts to       |   | access is cut off  | impacts to    |
| and         |   | utilities and    |   | during 100-year    | utilities and |
| Utilities   |   | emergency        |   | flood event.       | emergency     |
|             |   | response due to  |   | Potential impacts  | response due  |
|             |   | future flood     |   | mitigated by       | to future     |
|             |   | events.          |   | implementing       | flood events. |
|             |   |                  |   | procedures to      |               |
|             |   |                  |   | evacuate park      |               |
|             |   |                  |   | during 100-year    |               |
|             |   |                  |   | flood event.       |               |
+-------------+---+------------------+---+--------------------+---------------+
| Air Quality |   | No Impacts.      |   | Temporary increase | Temporary     |
|             |   |                  |   | of PM-10 and       | increase of   |
|             |   |                  |   | fugitive dust      | PM-10 and     |
|             |   |                  |   | caused by          | fugitive dust |
|             |   |                  |   | construction       | caused by     |
|             |   |                  |   | activity does not  | construction  |
|             |   |                  |   | exceed BAAQMD      | activity does |
|             |   |                  |   | emission           | not exceed    |
|             |   |                  |   | standards, and     | BAAQMD        |
|             |   |                  |   | will be mitigated  | emission      |
|             |   |                  |   | by avoidance       | standards,    |
|             |   |                  |   | and/or mitigation  | and will be   |
|             |   |                  |   | measures.          | mitigated by  |
|             |   |                  |   |                    | mitigation    |
|             |   |                  |   |                    | measures.     |
+-------------+---+------------------+---+--------------------+---------------+
| Noise       |   | No Impacts.      |   | Temporary          | Temporary     |
|             |   |                  |   | construction noise | construction  |
|             |   |                  |   | of 80 dBA at a     | noise of 80   |
|             |   |                  |   | distance of 50     | dBA at a      |
|             |   |                  |   | feet for several   | distance of   |
|             |   |                  |   | months. Impacts    | 50 feet for   |
|             |   |                  |   | mitigated by       | several       |
|             |   |                  |   | mitigation         | months.       |
|             |   |                  |   | measures. Pump     | Impacts       |
|             |   |                  |   | noise of 81 dBA at | mitigated by  |
|             |   |                  |   | 23 feet during     | mitigation    |
|             |   |                  |   | emergency flood    | measures.     |
|             |   |                  |   | events. Impact     |               |
|             |   |                  |   | mitigated by       |               |
|             |   |                  |   | critical grade     |               |
|             |   |                  |   | muffler.           |               |
+-------------+---+------------------+---+--------------------+---------------+
| Tra         |   | Future flooding  |   | No adverse effect  | Future        |
| nsportation |   | could result in  |   | to regular traffic | flooding      |
|             |   | temporary road   |   | circulation.       | could result  |
|             |   | closures and     |   |                    | in temporary  |
|             |   | detours. No      |   | Temporary impacts  | road closures |
|             |   | other impacts.   |   | from construction  | and detours.  |
|             |   |                  |   | contractor traffic |               |
|             |   |                  |   | during             |               |
|             |   |                  |   | construction.      |               |
|             |   |                  |   | Hopper Creek       |               |
|             |   |                  |   | bicycle and        |               |
|             |   |                  |   | pedestrian path to |               |
|             |   |                  |   | be temporarily     |               |
|             |   |                  |   | closed during      |               |
|             |   |                  |   | construction.      |               |
|             |   |                  |   |                    |               |
|             |   |                  |   | Flashboard         |               |
|             |   |                  |   | closures during    |               |
|             |   |                  |   | very high flood    |               |
|             |   |                  |   | event at Mission   |               |
|             |   |                  |   | Street and         |               |
|             |   |                  |   | Champagne Drive    |               |
|             |   |                  |   | result in          |               |
|             |   |                  |   | temporary          |               |
|             |   |                  |   | disruption of      |               |
|             |   |                  |   | vehicular and      |               |
|             |   |                  |   | pedestrian access. |               |
+-------------+---+------------------+---+--------------------+---------------+
| Visual      |   | No impacts.      |   | Impact to views of | Improved      |
| Resources   |   |                  |   | surrounding        | views of      |
|             |   |                  |   | landscape from     | surrounding   |
|             |   |                  |   | inside the mobile  | landscape     |
|             |   |                  |   | home parks where   | from inside   |
|             |   |                  |   | floodwall is       | the mobile    |
|             |   |                  |   | higher than        | home parks    |
|             |   |                  |   | existing fence.    | when          |
|             |   |                  |   |                    | elevated.     |
|             |   |                  |   |                    |               |
|             |   |                  |   |                    | Impacts due   |
|             |   |                  |   |                    | to blocked    |
|             |   |                  |   |                    | views from    |
|             |   |                  |   |                    | homes on the  |
|             |   |                  |   |                    | northern      |
|             |   |                  |   |                    | boundary of   |
|             |   |                  |   |                    | Rancho de     |
|             |   |                  |   |                    | Napa by the   |
|             |   |                  |   |                    | elevated      |
|             |   |                  |   |                    | homes at the  |
|             |   |                  |   |                    | back of       |
|             |   |                  |   |                    | Rancho de     |
|             |   |                  |   |                    | Napa Mobile   |
|             |   |                  |   |                    | Home Park.    |
+-------------+---+------------------+---+--------------------+---------------+
| Cumulative  |   | No impacts.      |   | No impacts.        | No impacts.   |
| Impacts     |   |                  |   |                    |               |
+-------------+---+------------------+---+--------------------+---------------+

# Section 4 4 Affected Environment, Impacts, and Mitigation

None of the alternatives is expected to result in substantial adverse
impacts to the environment. This Section describes existing conditions
in the project area; evaluates the potential for the No Action
Alternative, the construction of a floodwall, and the elevation of the
mobile homes to result in direct and indirect impacts on the
environment; and discusses mitigation measures to avoid or minimize
these impacts. The analysis in this Section focuses on those
environmental resources where some level of impact may result, including
biological resources; geology and soils; water resources; cultural
resources; socioeconomics and safety; land use and zoning; public
services and utilities; air quality; noise; transportation; and visual
resources. No other resource areas have been identified that require
evaluation pursuant to NEPA. This Section also addresses cumulative
impacts. Table 1 summarizes the impacts and mitigations that would
result in the various resource areas from the alternatives evaluated.

## Biological Resources

The Rancho de Napa and Gateway Mobile Home Parks are in a disturbed
urban environment. The project site contains no natural vegetation
communities. Vegetation consists of ruderal grassy areas and a riparian
corridor that is dominated by ornamental species and ruderal vegetation.

The mobile home parks are adjacent to two local drainages: Hopper Creek
and Beard Ditch. Hopper Creek drains an area of approximately 2.5 square
miles. It is an intermittent stream course composed of a series of open
channel sections and road culverts. Hopper Creek flows southeast through
the Town of Yountville, joins Dry Creek, and eventually empties into the
Napa River.

The Section of Hopper Creek that runs adjacent to the parks is a
channelized, maintained, disturbed streambed with a riparian canopy of
willows in some areas and ruderal vegetation lining the streambed in
more open sections. The creek channel is dry during the summer and has
high flow only during storm events.

The Town of Yountville regularly maintains Hopper Creek channel for
flood control by removal of vegetation and sediment to maintain the
hydraulic capacity of the channel. All work is performed when the
channel is dry. This regular maintenance results in disturbance to the
riparian habitat through a change in canopy cover from vegetation
removal and a lack of complex channel structure due to sediment and
debris removal.

Beard Ditch is a significantly smaller drainage. The watershed includes
runoff from residential areas within the Town limits, plus a small
amount of drainage from the vineyards to the east, storm runoff, and
overflow waters from Hopper Creek. Beard Ditch drainage discharges into
Hopper Creek south of the Town limits and ultimately into the Napa
River. It is a maintained, trapezoidal, dirt-lined, agricultural
drainage ditch and does not contain sensitive riparian or wetland
habitat.

### Vegetation and Wildlife

Vineyards skirt the mobile home parks to the east and south. At the
northern portion of the project site, near the Oak Circle street
crossing, the bed of Hopper Creek is a grassy swale, lined with bermuda
grass (*Cynodon dactylon*). Along the western side of the project site
landscaped trees, redwood (*Sequoia sempervirens*), and small black
walnut trees (*Juglans californica*) abut some of the houses on the
western side of the creek. The bank along the eastern side of the creek
channel is covered with various weedy shrubs. At the mouth of the
culvert crossing under Mission Drive grows a small clump of cattails
(*Typha* sp.) and grasses, but the dominant vegetation cover in the dry
creekbed is ruderal. Vegetation cover south along the bank consists of a
thick cover of willow (*Salix* sp.), blackberry (*Rubus* sp.), oleander
(*Nerium oleander*), fennel (*Foeniculum vulgare*), a few young oak
trees (*Quercus* sp.), and approximately seven Monterey pine trees
(*Pinus radiata*).

Annual grasses, burdock (*Arctium* sp.), stinging nettle (*Urtica* sp.),
and jimson weed (*Datura stramonium*) dominate the weedy vegetation
cover in the creek bed of the Section of Hopper Creek that extends from
the pedestrian foot bridge to beyond Champagne Drive. Several trees are
located adjacent to the wooden fence line in this Section of the creek.

Two wildlife species were observed within the project area: California
quail (*Callipepla californica*) and Western gray squirrels (*Sciurus
griseus*). These species are typical of suburban wildlife observed on
the edges of parks and woodlands in most cities and towns in Northern
California. Quail were observed to use the tree, shrub, and grass cover
along the paved pedestrian trail near the junction with Mission Drive.
Squirrels use the pine and oak trees along the banks of Hopper Creek.
The creek provides a wildlife corridor and nesting habitat, both of
which are particularly important in urbanized settings where these
riparian corridors are limited.

The portion of Hopper Creek in the project area is located approximately
1.5 miles north of its confluence with Dry Creek, a tributary to the
Napa River. Napa River floodwaters may back up into Hopper Creek, and
may carry with them aquatic organisms, including fish, although no fish
are expected to use the creek on a consistent basis.

### Special Status Species 

In compliance with Section 7 of the Federal Endangered Species Act, the
project area was reviewed for its potential to support habitat for
federally listed threatened or endangered species. To determine known
locations of threatened or endangered species, a search of the
California Natural Diversity Database (CNDDB 2002) was conducted for the
U.S. Geological Survey (USGS) 7.5-minute topographic quadrangles Capell
Valley, Chiles Valley, Lake Berryessa, Mt. George, Napa, Rutherford, St.
Helena, and Sonoma. A list of special-status species with the potential
to occur in Napa County was also obtained from the Sacramento Office of
the U. S. Fish and Wildlife Service (USFWS 2002). The federally listed
species that were assessed for presence in the project area are
presented in Table 2.

To ascertain the potential presence of these species within the project
area, URS Corporation (URS), on behalf of FEMA, conducted a
reconnaissance field survey of the project area on October 29, 2002. In
addition, URS conducted a literature review to identify habitat
requirements and distribution for special status species. The U.S. Fish
and Wildlife Service (USFWS) (Appendix A) and the National Marine
Fisheries Service (NMFS) (Appendix B) were consulted on the project and
provided feedback regarding the potential for the project site to
support special status species (USFWS 2003; NMFS 2003).

As a result of the field visit, background review, and agency
consultation with USFWS and NMFS, FEMA determined that the proposed
project area only provides suitable habitat

+------------+---+-----------+---+---+---+------------------+----------------+
| **Table 2\ |   |           |   |   |   |                  |                |
| Special    |   |           |   |   |   |                  |                |
| Status     |   |           |   |   |   |                  |                |
| Species    |   |           |   |   |   |                  |                |
| that       |   |           |   |   |   |                  |                |
| P          |   |           |   |   |   |                  |                |
| otentially |   |           |   |   |   |                  |                |
| Occur in   |   |           |   |   |   |                  |                |
| the        |   |           |   |   |   |                  |                |
| Project    |   |           |   |   |   |                  |                |
| Vicinity** |   |           |   |   |   |                  |                |
+============+===+===========+===+===+===+==================+================+
| **Common   |   | **S       | * |   |   | **Supporting     | **Potential    |
| Name**     |   | cientific | * |   |   | H                | Occurrence in  |
|            |   | Name**    | S |   |   | abitat/Flowering | Project        |
|            |   |           | t |   |   | Period\*\***     | Area/Location  |
|            |   |           | a |   |   |                  | of Known       |
|            |   |           | t |   |   |                  | Occurrences in |
|            |   |           | u |   |   |                  | Vicinity**     |
|            |   |           | s |   |   |                  |                |
|            |   |           | * |   |   |                  |                |
|            |   |           | * |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
|            |   |           | > | > | > |                  |                |
|            |   |           |   |   |   |                  |                |
|            |   |           | * | * | * |                  |                |
|            |   |           | * | * | * |                  |                |
|            |   |           | F | S | C |                  |                |
|            |   |           | e | t | N |                  |                |
|            |   |           | d | a | P |                  |                |
|            |   |           | e | t | S |                  |                |
|            |   |           | r | e | ^ |                  |                |
|            |   |           | a | ^ | c |                  |                |
|            |   |           | l | b | ^ |                  |                |
|            |   |           | ^ | ^ | * |                  |                |
|            |   |           | a | * | * |                  |                |
|            |   |           | ^ | * |   |                  |                |
|            |   |           | * |   |   |                  |                |
|            |   |           | * |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| **Plants** |   |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Baker's    |   | *Ble      | E | E | 1 | Valley and       | Known only     |
| stickyseed |   | nnosperma |   |   | B | foothill         | from Sonoma    |
| (Sonoma    |   | bakeri*   |   |   |   | grassland        | County, not    |
| sunshine)  |   |           |   |   |   | (mesic), vernal  | likely to      |
|            |   |           |   |   |   | pools;           | occur.         |
|            |   |           |   |   |   | Mar-May.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Clara      |   | *A        | E | T | 1 | Chaparral        | No suitable    |
| Hunt's     |   | stragalus |   |   | B | openings,        | habitat at     |
| milk-vetch |   | c         |   |   |   | cismontane       | project site;  |
|            |   | larianus* |   |   |   | woodland, valley | not likely to  |
|            |   |           |   |   |   | and foothill     | occur.         |
|            |   |           |   |   |   | grassland        |                |
|            |   |           |   |   |   | (serpentinite or |                |
|            |   |           |   |   |   | volcanic, rocky, |                |
|            |   |           |   |   |   | clay);           |                |
|            |   |           |   |   |   | Mar-May.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Contra     |   | *         | E | N | 1 | Cismontane       | No suitable    |
| Costa      |   | Lasthenia |   | A | B | woodland, playas | habitat at     |
| goldfields |   | c         |   |   |   | (alkaline),      | project site;  |
|            |   | onjugens* |   |   |   | valley and       | not likely to  |
|            |   |           |   |   |   | foothill         | occur.         |
|            |   |           |   |   |   | grasslands,      |                |
|            |   |           |   |   |   | vernal pools     |                |
|            |   |           |   |   |   | (mesic);         |                |
|            |   |           |   |   |   | Mar-Jun.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Calistoga  |   | *Plag     | E | T | 1 | Meadows and      | No suitable    |
| allocarya  |   | iobothrys |   |   | B | seeps, valley    | habitat at     |
| (popco     |   | strictus* |   |   |   | and foothill     | project site;  |
| rn-flower) |   |           |   |   |   | grassland,       | not likely to  |
|            |   |           |   |   |   | vernal pools     | occur.         |
|            |   |           |   |   |   | (alkaline areas  |                |
|            |   |           |   |   |   | near thermal     |                |
|            |   |           |   |   |   | springs);        |                |
|            |   |           |   |   |   | Mar-Jun.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Fe         |   | *N        | E | T | 1 | Vernal pools     | No suitable    |
| w-flowered |   | avarretia |   |   | B | (volcanic ash    | habitat at     |
| navarretia |   | leuc      |   |   |   | flow);           | project site;  |
|            |   | ocephala* |   |   |   | May-Jun.^1a^     | not likely to  |
|            |   | ssp*.     |   |   |   |                  | occur.         |
|            |   | pa        |   |   |   |                  |                |
|            |   | uciflora* |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Napa       |   | *Poa      | E | E | 1 | Meadows and      | Known from     |
| bluegrass  |   | napensis* |   |   | B | seeps, valley    | only 2         |
|            |   |           |   |   |   | and foothill     | occurrences in |
|            |   |           |   |   |   | grassland        | the Calistoga  |
|            |   |           |   |   |   | (alkaline, near  | area. No       |
|            |   |           |   |   |   | hot springs);    | suitable       |
|            |   |           |   |   |   | May-Aug.^1a^     | habitat at     |
|            |   |           |   |   |   |                  | project site;  |
|            |   |           |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Sebastopol |   | *         | E | E | 1 | Meadows and      | Known          |
| meadowfoam |   | Limanthes |   |   | B | seeps, valley    | occurrence at  |
|            |   | v         |   |   |   | and foothill     | Yountville     |
|            |   | inculans* |   |   |   | grassland,       | Ecological     |
|            |   |           |   |   |   | vernal pools     | Preserve. No   |
|            |   |           |   |   |   | (vernally        | suitable       |
|            |   |           |   |   |   | mesic).^1a^      | habitat at     |
|            |   |           |   |   |   |                  | project site;  |
|            |   |           |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Showy      |   | *         | E | N | 1 | Coastal bluff    | No suitable    |
| Indian     |   | Trifolium |   | A | B | scrub, Valley    | habitat at     |
| clover     |   | amoenum*  |   |   |   | and foothill     | project site;  |
|            |   |           |   |   |   | grassland        | not likely to  |
|            |   |           |   |   |   | (sometimes       | occur.         |
|            |   |           |   |   |   | serpentinite);   |                |
|            |   |           |   |   |   | Apr-Jun.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Soft's     |   | *Cor      | E | R | 1 | Coastal salt     | No suitable    |
| b          |   | dylanthus |   |   | B | marshes and      | habitat at     |
| ird's-beak |   | mollis*   |   |   |   | swamps;          | project site;  |
|            |   | ssp*.     |   |   |   | Jul-Nov.^1a^     | not likely to  |
|            |   | mollis*   |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Sonoma     |   | *Ch       | E | E | 1 | Coastal prairie  | No suitable    |
| s          |   | orizanthe |   |   | B | (sandy);         | habitat at     |
| pineflower |   | valida*   |   |   |   | Jun-Aug.^1a^     | project site;  |
|            |   |           |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Tiburon    |   | *C        | E | T | 1 | Valley and       | No suitable    |
| paintbrush |   | astilleja |   |   | B | foothill         | habitat at     |
|            |   | affinis*  |   |   |   | grassland,       | project site;  |
|            |   | ssp*.     |   |   |   | (serpentinite);  | not likely to  |
|            |   | neglecta* |   |   |   | Apr-Jun.^1a^     | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Adobe lily |   | *Fr       | S | N | 1 | Chaparral,       | No suitable    |
|            |   | itillaria | C | A | B | cismontane       | habitat at     |
|            |   | pl        |   |   |   | woodland, valley | project site;  |
|            |   | uriflora* |   |   |   | and foothill     | not likely to  |
|            |   |           |   |   |   | grassland (often | occur.         |
|            |   |           |   |   |   | adobe).^1a^      |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Alkali     |   | *A        | S | N | 1 | Playas, valley   | No suitable    |
| milk-vetch |   | stragalus | C | A | B | and foothill     | habitat at     |
|            |   | tener*    |   |   |   | grassland (adobe | project site;  |
|            |   | var.      |   |   |   | clay), vernal    | not likely to  |
|            |   | *tener*   |   |   |   | pools; alkaline; | occur.         |
|            |   |           |   |   |   | Mar-Jun.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Baker's    |   | *Arcto    | S | R | 1 | Broadleafed      | No suitable    |
| manzanita  |   | staphylos | C |   | B | upland forest,   | habitat at     |
|            |   | bakeri*   |   |   |   | chaparral (often | project site;  |
|            |   | ssp*.     |   |   |   | serpentinite);   | not likely to  |
|            |   | bakeri*   |   |   |   | Feb-Apr.^1a^     | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Baker's    |   | *N        | S | N | 1 | Cismontane       | No suitable    |
| navarretia |   | avarretia | C | A | B | woodland, lower  | habitat at     |
|            |   | leuc      |   |   |   | montane          | project site;  |
|            |   | ocephala* |   |   |   | coniferous       | not likely to  |
|            |   | ssp*.     |   |   |   | forest, meadows  | occur.         |
|            |   | bakeri*   |   |   |   | and seeps,       |                |
|            |   |           |   |   |   | valley and       |                |
|            |   |           |   |   |   | foothill         |                |
|            |   |           |   |   |   | grassland,       |                |
|            |   |           |   |   |   | vernal pools     |                |
|            |   |           |   |   |   | (mesic);         |                |
|            |   |           |   |   |   | May-Jul.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Ben        |   | *         | S | N | 1 | Coastal bluff    | No suitable    |
| t-flowered |   | Amsinckia | L | A | B | scrub,           | habitat at     |
| fiddleneck |   | lunaris*  | C |   |   | cismontane       | project site;  |
|            |   |           |   |   |   | woodland, valley | not likely to  |
|            |   |           |   |   |   | and foothill     | occur.         |
|            |   |           |   |   |   | grassland;       |                |
|            |   |           |   |   |   | Mar-Jun.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Big-scale  |   | *Bal      | S | N | 1 | Chaparral,       | No suitable    |
| (C         |   | samorhiza | L | A | B | cismontane       | habitat at     |
| alifornia) |   | ma        | C |   |   | woodland, valley | project site;  |
| balsamroot |   | crolepis* |   |   |   | and foothill     | not likely to  |
|            |   | var*.     |   |   |   | grassland (often | occur.         |
|            |   | ma        |   |   |   | serpentinite);   |                |
|            |   | crolepis* |   |   |   | Apr-Jun.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Brewer's   |   | *Hes      | S | N | 1 | Chaparral,       | No suitable    |
| dwarf      |   | perolinon | C | A | B | cismontane       | habitat at     |
| (western)  |   | breweri*  |   |   |   | woodland, valley | project site;  |
| flax       |   |           |   |   |   | and foothill     | not likely to  |
|            |   |           |   |   |   | grassland        | occur.         |
|            |   |           |   |   |   | (serpentine);    |                |
|            |   |           |   |   |   | May-Jul.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Calistoga  | * |           | S | N | 1 | Chaparral        | No suitable    |
| ceanothus  | C |           | C | A | B | (serpentinite or | habitat at     |
|            | e |           |   |   |   | volcanic,        | project site;  |
|            | a |           |   |   |   | rocky);          | not likely to  |
|            | n |           |   |   |   | Feb-Mar.^1a^     | occur.         |
|            | o |           |   |   |   |                  |                |
|            | t |           |   |   |   |                  |                |
|            | h |           |   |   |   |                  |                |
|            | u |           |   |   |   |                  |                |
|            | s |           |   |   |   |                  |                |
|            | d |           |   |   |   |                  |                |
|            | i |           |   |   |   |                  |                |
|            | v |           |   |   |   |                  |                |
|            | e |           |   |   |   |                  |                |
|            | r |           |   |   |   |                  |                |
|            | g |           |   |   |   |                  |                |
|            | e |           |   |   |   |                  |                |
|            | n |           |   |   |   |                  |                |
|            | s |           |   |   |   |                  |                |
|            | * |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Cobb       | * |           | S | N | 1 | Broadleafed      | No suitable    |
| Mountain   | L |           | L | A | B | upland forest,   | habitat at     |
| lupine     | u |           | C |   |   | chaparral,       | project site;  |
|            | p |           |   |   |   | cismontane       | not likely to  |
|            | i |           |   |   |   | woodland, lower  | occur.         |
|            | n |           |   |   |   | montane          |                |
|            | u |           |   |   |   | coniferous       |                |
|            | s |           |   |   |   | forest;          |                |
|            | s |           |   |   |   | Mar-Jun.^1a^     |                |
|            | e |           |   |   |   |                  |                |
|            | r |           |   |   |   |                  |                |
|            | i |           |   |   |   |                  |                |
|            | c |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | t |           |   |   |   |                  |                |
|            | u |           |   |   |   |                  |                |
|            | s |           |   |   |   |                  |                |
|            | * |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Colusa     | * |           | S | N | 1 | Chaparral,       | No suitable    |
| layia      | L |           | L | A |   | cismontane       | habitat at     |
| (Colusa    | a |           | C |   |   | woodland, valley | project site;  |
| tidytips)  | y |           |   |   |   | and foothill     | not likely to  |
|            | i |           |   |   |   | grassland,       | occur.         |
|            | a |           |   |   |   | (sandy,          |                |
|            | s |           |   |   |   | serpentinite);   |                |
|            | e |           |   |   |   | Apr-May.^1a^     |                |
|            | p |           |   |   |   |                  |                |
|            | t |           |   |   |   |                  |                |
|            | e |           |   |   |   |                  |                |
|            | n |           |   |   |   |                  |                |
|            | t |           |   |   |   |                  |                |
|            | r |           |   |   |   |                  |                |
|            | i |           |   |   |   |                  |                |
|            | o |           |   |   |   |                  |                |
|            | n |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | l |           |   |   |   |                  |                |
|            | i |           |   |   |   |                  |                |
|            | s |           |   |   |   |                  |                |
|            | * |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Contact    | * |           | S | N | 1 | Closed-cone      | No suitable    |
| (Socrates) | S |           | C | A | B | coniferous       | habitat at     |
| Mine       | t |           |   |   |   | forest,          | project site;  |
| j          | r |           |   |   |   | Chaparral,       | not likely to  |
| ewelflower | e |           |   |   |   | (usually         | occur.         |
|            | p |           |   |   |   | serpentinite);   |                |
|            | t |           |   |   |   | May-Jun.^1a^     |                |
|            | a |           |   |   |   |                  |                |
|            | n |           |   |   |   |                  |                |
|            | t |           |   |   |   |                  |                |
|            | h |           |   |   |   |                  |                |
|            | u |           |   |   |   |                  |                |
|            | s |           |   |   |   |                  |                |
|            | b |           |   |   |   |                  |                |
|            | r |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | c |           |   |   |   |                  |                |
|            | h |           |   |   |   |                  |                |
|            | i |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | t |           |   |   |   |                  |                |
|            | u |           |   |   |   |                  |                |
|            | s |           |   |   |   |                  |                |
|            | * |           |   |   |   |                  |                |
|            | s |           |   |   |   |                  |                |
|            | s |           |   |   |   |                  |                |
|            | p |           |   |   |   |                  |                |
|            | . |           |   |   |   |                  |                |
|            | * |           |   |   |   |                  |                |
|            | h |           |   |   |   |                  |                |
|            | y |           |   |   |   |                  |                |
|            | d |           |   |   |   |                  |                |
|            | r |           |   |   |   |                  |                |
|            | o |           |   |   |   |                  |                |
|            | p |           |   |   |   |                  |                |
|            | h |           |   |   |   |                  |                |
|            | i |           |   |   |   |                  |                |
|            | l |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | * |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Delta      |   | *Lathyrus | S | N | 1 | Freshwater and   | No suitable    |
| tule-pea   |   | jepsonii  | C | A | B | brackish marshes | habitat at     |
|            |   | var.      |   |   |   | and slough       | project site;  |
|            |   | j         |   |   |   | edges;           | not likely to  |
|            |   | epsoniii* |   |   |   | May-Sep.^1a^     | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Drymaria   |   | *Hes      | S | N | 1 | Closed-cone      | No suitable    |
| dwarf flax |   | perolinon | C | A | B | coniferous       | habitat at     |
| (western   |   | dry       |   |   |   | forest,          | project site;  |
| flax)      |   | mariodes* |   |   |   | chaparral,       | not likely to  |
|            |   |           |   |   |   | Cismontane       | occur.         |
|            |   |           |   |   |   | woodland, valley |                |
|            |   |           |   |   |   | and foothill     |                |
|            |   |           |   |   |   | grassland        |                |
|            |   |           |   |   |   | (serpentinite);  |                |
|            |   |           |   |   |   | May-Aug.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Gairdner's |   | *Pe       | S | N | 4 | Broadleafed      | No suitable    |
| yampah     |   | rideridia | C | A |   | upland forest,   | habitat at     |
|            |   | g         |   |   |   | chaparral,       | project site;  |
|            |   | airdneri* |   |   |   | coastal prairie, | not likely to  |
|            |   | ssp.      |   |   |   | valley and       | occur.         |
|            |   | *g        |   |   |   | foothill         |                |
|            |   | airdneri* |   |   |   | grassland,       |                |
|            |   |           |   |   |   | vernal pools     |                |
|            |   |           |   |   |   | (mesic);         |                |
|            |   |           |   |   |   | Jun-Oct.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Green      |   | *Str      | S | N | 1 | Chaparral        | No suitable    |
| (s         |   | eptanthus | L | A | B | (openings),      | habitat at     |
| erpentine) |   | breweri*  | C |   |   | cismontane       | project site;  |
| je         |   | var*.     |   |   |   | woodland         | not likely to  |
| wel-flower |   | h         |   |   |   | (serpentinite,   | occur.         |
|            |   | esperidis |   |   |   | rocky);          |                |
|            |   | (S.       |   |   |   | May-Jul.^1a^     |                |
|            |   | he        |   |   |   |                  |                |
|            |   | speridi)* |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Hall's     |   | *Madia    | S | N | 1 | Chaparral        | No suitable    |
| madia      |   | hallii    | C | A | B | (serpentinite);  | habitat at     |
| (Hall's    |   | (Harmonia |   |   |   | Apr-Jun.^1a^     | project site;  |
| harmonia)  |   | hallii)*  |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Ho         |   | *         | S | N | 1 | Chaparral,       | No suitable    |
| lly-leaved |   | Ceanothus | L | A | B | cismontane       | habitat at     |
| ceanothus  |   | p         | C |   |   | woodland         | project site;  |
|            |   | urpureus* |   |   |   | (volcanic,       | not likely to  |
|            |   |           |   |   |   | rocky);          | occur.         |
|            |   |           |   |   |   | Feb-Jun.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Jepson's   |   | *         | S | N | 1 | Chaparral,       | No suitable    |
| linanthus  |   | Linanthus | L | A | B | cismontane       | habitat at     |
|            |   | jepsonii* | C |   |   | woodland         | project site;  |
|            |   |           |   |   |   | (usually         | not likely to  |
|            |   |           |   |   |   | volcanic);       | occur.         |
|            |   |           |   |   |   | Apr-May.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Jepson's   |   | *A        | S | N | 1 | Chaparral,       | No suitable    |
| milk-vetch |   | stragalus | L | A | B | cismontane       | habitat at     |
|            |   | rattanii* | C |   |   | woodland, valley | project site;  |
|            |   | var*.     |   |   |   | and foothill     | not likely to  |
|            |   | jep       |   |   |   | grassland (often | occur.         |
|            |   | sonianus* |   |   |   | serpentinite);   |                |
|            |   |           |   |   |   | Apr-Jun.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Kr         |   | *Str      | S | N | 1 | Chaparral        | No suitable    |
| uckeberg's |   | eptanthus | C | A | B | (serpentinite);  | habitat at     |
| j          |   | mo        |   |   |   | Apr-Jul.^1a^     | project site;  |
| ewelflower |   | rrisonii* |   |   |   |                  | not likely to  |
|            |   | ssp.      |   |   |   |                  | occur.         |
|            |   | *kruc     |   |   |   |                  |                |
|            |   | kebergii* |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Legenere   |   | *Legenere | S | N | 1 | Vernal pools;    | No suitable    |
|            |   | limosa*   | C | A | B | Apr-Jun^1a^      | habitat at     |
|            |   |           |   |   |   |                  | project site;  |
|            |   |           |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Marin      |   | *Sidalcea | S | N | 1 | Chaparral        | No suitable    |
| che        |   | h         | L | A | B | (serpentinite);  | habitat at     |
| ckermallow |   | ickmanii* | C |   |   | May-Jun.^1a^     | project site;  |
|            |   | ssp*.     |   |   |   |                  | not likely to  |
|            |   | viridis*  |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Marin      |   | *N        | S | N | 1 | Closed-cone      | No suitable    |
| County     |   | avarretia | L | A | B | coniferous       | habitat at     |
| navarretia |   | rosulata* | C |   |   | forest,          | project site;  |
| (San       |   |           |   |   |   | chaparral        | not likely to  |
| Anselmo    |   |           |   |   |   | (serpentinite,   | occur.         |
| n          |   |           |   |   |   | rocky);          |                |
| avarretia) |   |           |   |   |   | May-Jul.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Marin      |   | *         | S | N | 3 | Marshes and      | No suitable    |
| knotweed   |   | Polygonum | L | A |   | swamps (coastal  | habitat at     |
|            |   | m         | C |   |   | salt or          | project site;  |
|            |   | arinense* |   |   |   | brackish);       | not likely to  |
|            |   |           |   |   |   | Apr-Oct.^1a^     | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Mason's    |   | *L        | S | R | 1 | Freshwater and   | Common in      |
| lilaeopsis |   | ilaeopsis | C |   | B | brackish         | Suisun Bay. No |
|            |   | masonii*  |   |   |   | marshes, tidal   | tidal habitat  |
|            |   |           |   |   |   | zones;           | in project     |
|            |   |           |   |   |   | May-Nov.^1a^     | area, not      |
|            |   |           |   |   |   |                  | likely to      |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Mount      |   | *C        | S | N | 4 | Chaparral, lower | No suitable    |
| Saint      |   | alystegia | C | A |   | montane          | habitat at     |
| Helena     |   | collina*  |   |   |   | coniferous       | project site;  |
| mor        |   | ssp*.     |   |   |   | forest, valley   | not likely to  |
| ning-glory |   | o         |   |   |   | and foothill     | occur.         |
|            |   | xyphylla* |   |   |   | grassland,       |                |
|            |   |           |   |   |   | (serpentinite);  |                |
|            |   |           |   |   |   | Apr-Jun.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Napa       |   | *Hes      | S | N | 1 | Chaparral        | No suitable    |
| western    |   | perolinon | C | A | B | (serpentinite);  | habitat at     |
| flax       |   | ser       |   |   |   | May-Jul.^1a^     | project site;  |
|            |   | pentinum* |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Napa false | * |           | S | N | 1 | Broadleafed      | No suitable    |
| Indigo     | A |           | C | A | B | upland forest    | habitat at     |
|            | m |           |   |   |   | (openings),      | project site;  |
|            | o |           |   |   |   | chaparral,       | not likely to  |
|            | r |           |   |   |   | cismontane       | occur.         |
|            | p |           |   |   |   | woodland;        |                |
|            | h |           |   |   |   | Apr-Jul.^1a^     |                |
|            | a |           |   |   |   |                  |                |
|            | c |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | l |           |   |   |   |                  |                |
|            | i |           |   |   |   |                  |                |
|            | f |           |   |   |   |                  |                |
|            | o |           |   |   |   |                  |                |
|            | r |           |   |   |   |                  |                |
|            | n |           |   |   |   |                  |                |
|            | i |           |   |   |   |                  |                |
|            | c |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | * |           |   |   |   |                  |                |
|            | v |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | r |           |   |   |   |                  |                |
|            | . |           |   |   |   |                  |                |
|            | * |           |   |   |   |                  |                |
|            | n |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | p |           |   |   |   |                  |                |
|            | e |           |   |   |   |                  |                |
|            | n |           |   |   |   |                  |                |
|            | s |           |   |   |   |                  |                |
|            | i |           |   |   |   |                  |                |
|            | s |           |   |   |   |                  |                |
|            | * |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Narro      | * |           | S | N | 1 | Broadleafed      | No suitable    |
| w-anthered | B |           | L | A | B | upland forest,   | habitat at     |
| California | r |           | C |   |   | chaparral, lower | project site;  |
| brodiaea   | o |           |   |   |   | montane          | not likely to  |
|            | d |           |   |   |   | coniferous       | occur.         |
|            | e |           |   |   |   | forest;          |                |
|            | a |           |   |   |   | May-Jul.^1a^     |                |
|            | e |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | c |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | l |           |   |   |   |                  |                |
|            | i |           |   |   |   |                  |                |
|            | f |           |   |   |   |                  |                |
|            | o |           |   |   |   |                  |                |
|            | r |           |   |   |   |                  |                |
|            | n |           |   |   |   |                  |                |
|            | i |           |   |   |   |                  |                |
|            | c |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | * |           |   |   |   |                  |                |
|            | v |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | r |           |   |   |   |                  |                |
|            | * |           |   |   |   |                  |                |
|            | . |           |   |   |   |                  |                |
|            | l |           |   |   |   |                  |                |
|            | e |           |   |   |   |                  |                |
|            | p |           |   |   |   |                  |                |
|            | t |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | n |           |   |   |   |                  |                |
|            | d |           |   |   |   |                  |                |
|            | r |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | * |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Nar        | * |           | S | N | 1 | Chaparral        | No suitable    |
| row-leaved | E |           | L | A | B | (serpentinite);  | habitat at     |
| daisy      | r |           | C |   |   | May-Sep.^1a^     | project site;  |
|            | i |           |   |   |   |                  | not likely to  |
|            | g |           |   |   |   |                  | occur.         |
|            | e |           |   |   |   |                  |                |
|            | r |           |   |   |   |                  |                |
|            | o |           |   |   |   |                  |                |
|            | n |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | n |           |   |   |   |                  |                |
|            | g |           |   |   |   |                  |                |
|            | u |           |   |   |   |                  |                |
|            | s |           |   |   |   |                  |                |
|            | t |           |   |   |   |                  |                |
|            | a |           |   |   |   |                  |                |
|            | t |           |   |   |   |                  |                |
|            | u |           |   |   |   |                  |                |
|            | s |           |   |   |   |                  |                |
|            | * |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Northern   | * |           | S | N | 1 | Riparian forest, | None           |
| California | J |           | C | A | B | riparian         | identified at  |
| black      | u |           |   |   |   | woodland;        | project site;  |
| walnut     | g |           |   |   |   | Apr-May.^1a^     | not likely to  |
|            | l |           |   |   |   |                  | occur in       |
|            | a |           |   |   |   |                  | project area.  |
|            | n |           |   |   |   |                  |                |
|            | s |           |   |   |   |                  |                |
|            | h |           |   |   |   |                  |                |
|            | i |           |   |   |   |                  |                |
|            | n |           |   |   |   |                  |                |
|            | d |           |   |   |   |                  |                |
|            | s |           |   |   |   |                  |                |
|            | i |           |   |   |   |                  |                |
|            | i |           |   |   |   |                  |                |
|            | * |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Pacific    |   | *Spartina | S | N | N | Coastal salt     | No suitable    |
| cordgrass  |   | foliosa*  | L | A | A | marsh.^1c^       | habitat at     |
| (          |   |           | C |   |   |                  | project site;  |
| California |   |           |   |   |   |                  | not likely to  |
| cordgrass) |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Pink       |   | *C        | S | N | 1 | Chaparral,       | No suitable    |
| creamsacs  |   | astilleja | L | A | B | cismontane       | habitat at     |
|            |   | rub       | C |   |   | woodland,        | project site;  |
|            |   | icundula* |   |   |   | meadows and      | not likely to  |
|            |   | ssp*.     |   |   |   | seeps, valley    | occur.         |
|            |   | rub       |   |   |   | and foothill     |                |
|            |   | icundula* |   |   |   | grassland,       |                |
|            |   |           |   |   |   | (serpentinite);  |                |
|            |   |           |   |   |   | Apr-Jun.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Rincon     |   | *         | S | N | 1 | Closed-cone      | No suitable    |
| Ridge      |   | Ceanothus | C | A | B | coniferous       | habitat at     |
| ceanothus  |   | confusus* |   |   |   | forest,          | project site;  |
|            |   |           |   |   |   | chaparral,       | not likely to  |
|            |   |           |   |   |   | cismontane       | occur.         |
|            |   |           |   |   |   | woodland         |                |
|            |   |           |   |   |   | (volcanic or     |                |
|            |   |           |   |   |   | serpentinite);   |                |
|            |   |           |   |   |   | Feb-Apr.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Robust     |   | *M        | S | N | 1 | Broadleafed      | No suitable    |
| monardella |   | onardella | L | A | B | upland forest,   | habitat at     |
| (robust    |   | villosa*  | C |   |   | chaparral,       | project site;  |
| coyote     |   | ssp*.     |   |   |   | cismontane       | not likely to  |
| mint)      |   | globosa*  |   |   |   | woodland,        | occur.         |
|            |   |           |   |   |   | coastal scrub,   |                |
|            |   |           |   |   |   | valley and       |                |
|            |   |           |   |   |   | foothill         |                |
|            |   |           |   |   |   | grassland;       |                |
|            |   |           |   |   |   | Jun-Jul.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Saint      |   | *Er       | S | N | 4 | Chaparral,       | No suitable    |
| Helena     |   | ythronium | L | A |   | cismontane       | habitat at     |
| fawn lily  |   | helenae*  | C |   |   | woodland, lower  | project site;  |
|            |   |           |   |   |   | montane          | not likely to  |
|            |   |           |   |   |   | coniferous       | occur.         |
|            |   |           |   |   |   | forest, valley   |                |
|            |   |           |   |   |   | and foothill     |                |
|            |   |           |   |   |   | grassland,       |                |
|            |   |           |   |   |   | (volcanic or     |                |
|            |   |           |   |   |   | serpentinite);   |                |
|            |   |           |   |   |   | Mar-May.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Salt marsh |   | *C        | S | N | N | Salt marsh,      | No suitable    |
| owl's      |   | astilleja | L | A | A | wetlands^1c^     | habitat at     |
| clover     |   | ambigua*  | C |   |   |                  | project site;  |
| (johnny    |   | ssp*.     |   |   |   |                  | not likely to  |
| nip)       |   | ambigua*  |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| San        |   | *Atriplex | S | N | 1 | Chenopod scrub,  | No suitable    |
| Joaquin    |   | joa       | C | A | B | meadows, playas, | habitat at     |
| spearscale |   | quiniana* |   |   |   | valley and       | project site;  |
| (saltbush) |   |           |   |   |   | foothill         | not likely to  |
|            |   |           |   |   |   | grassland        | occur.         |
|            |   |           |   |   |   | (alkaline);      |                |
|            |   |           |   |   |   | Apr-Oct.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Serpentine |   | *C        | S | N | 1 | Chaparral        | No suitable    |
| (Cl        |   | ryptantha | L | A | B | (serpentinite);  | habitat at     |
| eveland's) |   | cle       | C |   |   | Apr-Jun          | project site;  |
| cryptantha |   | velandii* |   |   |   |                  | not likely to  |
|            |   | var*.     |   |   |   |                  | occur.         |
|            |   | dissita*  |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Snowy      |   | *         | S | N | 1 | Chaparral        | No suitable    |
| Mountain   |   | Eriogonum | C | A | B | (serpentinite);  | habitat at     |
| buckwheat  |   | ne        |   |   |   | Jun-Sep.^1a^     | project site;  |
|            |   | rvulosum* |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Sonoma     |   | *         | S | N | 1 | Chaparral        | No suitable    |
| ceanothus  |   | Ceanothus | C | A | B | (sandy,          | habitat at     |
|            |   | so        |   |   |   | serpentinite or  | project site;  |
|            |   | nomensis* |   |   |   | volcanic);       | not likely to  |
|            |   |           |   |   |   | Feb-Apr.^1a^     | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Sonoma     |   | *Arcto    | S | N | 1 | Chaparral, lower | No suitable    |
| manzanita  |   | staphylos | L | A | B | montane          | habitat at     |
|            |   | c         | C |   |   | coniferous       | project site;  |
|            |   | anescens* |   |   |   | forest           | not likely to  |
|            |   | ssp*.     |   |   |   | (sometimes       | occur.         |
|            |   | so        |   |   |   | serpentinite);   |                |
|            |   | nomensis* |   |   |   | Jan-Apr.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Suisun     |   | *Aster    | S | N | 1 | Freshwater and   | No suitable    |
| Marsh      |   | lentus*   | C | A | B | brackish marshes | habitat at     |
| aster      |   |           |   |   |   | and sloughs,     | project site;  |
|            |   |           |   |   |   | tidal;           | not likely to  |
|            |   |           |   |   |   | May-Nov.^1a^     | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Three      |   | *Str      | S | N | 1 | Chaparral,       | No suitable    |
| Peaks      |   | eptanthus | C | A | B | (serpentinite);  | habitat at     |
| j          |   | mo        |   |   |   | Jun-Sep.^1a^     | project site;  |
| ewelflower |   | rrisonii* |   |   |   |                  | not likely to  |
|            |   | ssp.      |   |   |   |                  | occur.         |
|            |   | *elatus*  |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Tiburon    |   | *         | S | N | 3 | Chaparral,       | No suitable    |
| buckwheat  |   | Eriogonum | L | A |   | coastal prairie, | habitat at     |
|            |   | luteolum* | C |   |   | valley and       | project site;  |
|            |   | var*      |   |   |   | foothill         | not likely to  |
|            |   | .caninum* |   |   |   | grassland        | occur.         |
|            |   |           |   |   |   | (serpentinite);  |                |
|            |   |           |   |   |   | Jun-Sep.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Tw         |   | *Hes      | S | N | 1 | Chaparral        | No suitable    |
| o-carpeled |   | perolinon | C | A | B | serpentinite;    | habitat at     |
| dwarf flax |   | bicar     |   |   |   | May-Jul.^1a^     | project site;  |
| (western   |   | pellatum* |   |   |   |                  | not likely to  |
| flax)      |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Wa         |   | *Sidalcea | S | N | 1 | Meadows and      | No suitable    |
| ter-loving |   | oregana*  | C | A | B | seeps, riparian  | habitat at     |
| che        |   | ssp*.     |   |   |   | forest (mesic);  | project site;  |
| ckermallow |   | hy        |   |   |   | Jul-Aug.^1a^     | not likely to  |
| (marsh     |   | drophila* |   |   |   |                  | occur.         |
| che        |   |           |   |   |   |                  |                |
| ckerbloom) |   |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Water sack |   | *         | S | N | 1 | Marshes and      | No suitable    |
| (saline)   |   | Trifolium | C | A | B | swamps, valley   | habitat at     |
| clover     |   | depa      |   |   |   | and foothill     | project site;  |
|            |   | uperatum* |   |   |   | grassland,       | not likely to  |
|            |   | var*.     |   |   |   | (mesic,          | occur.         |
|            |   | hyd       |   |   |   | alkaline),       |                |
|            |   | rophylum* |   |   |   | vernal pools;    |                |
|            |   |           |   |   |   | Apr-Jun.^1a^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| **INVER    |   |           |   |   |   |                  |                |
| TEBRATES** |   |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| California |   | *Syncaris | E | E | N | Freshwater, low  | Known          |
| freshwater |   | pacifica* |   |   | A | elevation, low   | occurrence in  |
| shrimp     |   |           |   |   |   | gradient,        | Huichica       |
|            |   |           |   |   |   | permanent        | Creek. No      |
|            |   |           |   |   |   | streams.^1d^     | suitable       |
|            |   |           |   |   |   |                  | habitat at     |
|            |   |           |   |   |   |                  | project site;  |
|            |   |           |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Callippe   |   | *Speyeria | E | N | N | Grassy           | No suitable    |
| silverspot |   | callippe  |   | A | A | hillsides,       | habitat at     |
| butterfly  |   | callippe* |   |   |   | chaparral, and   | project site;  |
|            |   |           |   |   |   | oak woodland^9^  | not likely to  |
|            |   |           |   |   |   | with native      | occur.         |
|            |   |           |   |   |   | forbs; host      |                |
|            |   |           |   |   |   | plant a native   |                |
|            |   |           |   |   |   | violet (*Viola   |                |
|            |   |           |   |   |   | p                |                |
|            |   |           |   |   |   | edunculata*).^8^ |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| C          |   | *Bra      | E | N | N | Grasslands of    | No suitable    |
| onservancy |   | nchinecta |   | A | A | the northern     | habitat at     |
| fairy      |   | con       |   |   |   | Central Valley;  | project site;  |
| shrimp     |   | servatio* |   |   |   | found in large,  | not likely to  |
|            |   |           |   |   |   | astatic turbid   | occur.         |
|            |   |           |   |   |   | pools.^1b^       |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Valley     |   | *D        | T | N | N | Central Valley   | No suitable    |
| elderberry |   | esmocerus |   | A | A | riparian areas   | habitat at     |
| longhorn   |   | cal       |   |   |   | containing       | project site;  |
| beetle     |   | ifornicus |   |   |   | elderberry       | not likely to  |
|            |   | d         |   |   |   | plants;          | occur.         |
|            |   | imorphus* |   |   |   | dependent on the |                |
|            |   |           |   |   |   | elderberry plant |                |
|            |   |           |   |   |   | in for food and  |                |
|            |   |           |   |   |   | to complete the  |                |
|            |   |           |   |   |   | life cycle.      |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Vernal     |   | *Bra      | T | N | N | Grasslands of    | No suitable    |
| pool fairy |   | nchinecta |   | A | A | the Central      | habitat at     |
| shrimp     |   | lynchi*   |   |   |   | Valley, Central  | project site;  |
|            |   |           |   |   |   | Coast Mtns, and  | not likely to  |
|            |   |           |   |   |   | South Coast      | occur.         |
|            |   |           |   |   |   | Mtns, in astatic |                |
|            |   |           |   |   |   | rain-filled      |                |
|            |   |           |   |   |   | pools.^1b^       |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| California |   | *Li       | S | N | N | Inhabits         | No suitable    |
| l          |   | nderiella | C | A | A | seasonal pools   | habitat at     |
| inderiella |   | occi      |   |   |   | in unplowed      | project site;  |
| fairy      |   | dentalis* |   |   |   | grasslands in    | not likely to  |
| shrimp     |   |           |   |   |   | the eastern      | occur.         |
|            |   |           |   |   |   | Central Valley   |                |
|            |   |           |   |   |   | and the South    |                |
|            |   |           |   |   |   | and Coast Range  |                |
|            |   |           |   |   |   | mtns.^1b^        |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Ri         |   | *H        | S | N | N | Aquatic, San     | No suitable    |
| cksecker's |   | ydrochara | C | A | A | Francisco Bay    | habitat at     |
| water      |   | ric       |   |   |   | Area, nothing    | project site;  |
| scavenger  |   | kseckeri* |   |   |   | specific known   | not likely to  |
| beetle     |   |           |   |   |   | about this       | occur.         |
|            |   |           |   |   |   | taxa.^1b^ One of |                |
|            |   |           |   |   |   | four occurrences |                |
|            |   |           |   |   |   | in Jepson        |                |
|            |   |           |   |   |   | Prairie          |                |
|            |   |           |   |   |   | Preserve.        |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Sonoma     |   | *Carter   | S | N | N | Glades in dense  | No suitable    |
| arctic     |   | ocephalus | C | A | A | woodlands, wet   | habitat at     |
| skipper    |   | palaemon* |   |   |   | meadows, and     | project site;  |
|            |   |           |   |   |   | streamsides.^16^ | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| **FISH**   |   |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Chinook    |   | *Onc      | E | E | N | Sacramento River | No known       |
| salmon,    |   | orhynchus |   |   | A | from Keswick to  | occurrences,   |
|            |   | tsh       |   |   |   | Chipps Island,   | no suitable    |
| winter-run |   | awytscha* |   |   |   | then west        | habitat in     |
| ESU        |   |           |   |   |   | through          | project area;  |
|            |   |           |   |   |   | Caraquinez       | not likely to  |
|            |   |           |   |   |   | Straight, San    | occur.         |
|            |   |           |   |   |   | Pablo Bay and    |                |
|            |   |           |   |   |   | San Francisco    |                |
|            |   |           |   |   |   | Bay.^15^         |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Tidewater  |   | *Eucy     | E | S | N | Estuaries and    | No known       |
| goby       |   | clogobius |   | C | A | lagoons of       | occurrences,   |
|            |   | n         |   |   |   | coastal creeks   | no suitable    |
|            |   | ewberryi* |   |   |   | with brackish    | habitat in     |
|            |   |           |   |   |   | water.^1b^       | project area;  |
|            |   |           |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Steelhead, |   | *Onc      | T | N | N | This coastal     | No spawning    |
| Central    |   | orhynchus |   | A | A | steelhead ESU    | habitat in     |
| California |   | mykiss*   |   |   |   | occupies river   | project area;  |
| Coast ESU  |   |           |   |   |   | basins from the  | documented use |
|            |   |           |   |   |   | Russian River to | as migratory   |
|            |   |           |   |   |   | Soquel Creek,    | corridor.      |
|            |   |           |   |   |   | Santa Cruz       |                |
|            |   |           |   |   |   | County           |                |
|            |   |           |   |   |   | (inclusive), and |                |
|            |   |           |   |   |   | the drainages of |                |
|            |   |           |   |   |   | San Francisco    |                |
|            |   |           |   |   |   | and San Pablo    |                |
|            |   |           |   |   |   | Bays.^14^        |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Delta      |   | *         | T | T | N | Sacramento-San   | No known       |
| smelt      |   | Hypomesus |   |   | A | Joaquin Delta,   | occurrences,   |
|            |   | transp    |   |   |   | Suisun Bay, San  | no suitable    |
|            |   | acificus* |   |   |   | Pablo Bay, river | habitat in     |
|            |   |           |   |   |   | channels and     | project area;  |
|            |   |           |   |   |   | sloughs. Reside  | not likely to  |
|            |   |           |   |   |   | primarily at the | occur.         |
|            |   |           |   |   |   | interface        |                |
|            |   |           |   |   |   | between fresh    |                |
|            |   |           |   |   |   | and salt         |                |
|            |   |           |   |   |   | water^10^        |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Sacramento |   | *Pog      | T | S | N | Sacramento       | No known       |
| splittail  |   | onichthys |   | C | A | Delta, sloughs,  | occurrences,   |
|            |   | macrol    |   |   |   | rivers and       | no suitable    |
|            |   | epidotus* |   |   |   | creeks with      | habitat in     |
|            |   |           |   |   |   | submergent       | project area;  |
|            |   |           |   |   |   | vegetation;      | not likely to  |
|            |   |           |   |   |   | requires flooded | occur.         |
|            |   |           |   |   |   | vegetation for   |                |
|            |   |           |   |   |   | spawning and     |                |
|            |   |           |   |   |   | forage for       |                |
|            |   |           |   |   |   | young.^1b^       |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Green      |   | *         | S | S | N | Large rivers and | No suitable    |
| sturgeon   |   | Acipenser | C | C | A | estuaries^1d^    | habitat in     |
|            |   | med       |   |   |   |                  | project area;  |
|            |   | irostris* |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Longfin    |   | *S        | S | S | N | Moderately       | No suitable    |
| smelt      |   | pirinchus | C | C | A | saline estuaries | habitat in     |
|            |   | thal      |   |   |   | and lower        | project area;  |
|            |   | eichthys* |   |   |   | reaches of       | not likely to  |
|            |   |           |   |   |   | rivers^4^        | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Pacific    |   | *Lampetra | S | N | N | Estuaries,       | No known       |
| lamprey    |   | tr        | C | A | A | rivers and       | occurrences,   |
|            |   | identata* |   |   |   | creeks with fine | no suitable    |
|            |   |           |   |   |   | gravel           | habitat in     |
|            |   |           |   |   |   | substrates^4^    | project area;  |
|            |   |           |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| River      |   | *Lampetra | S | S | N | Sacramento and   | No known       |
| lamprey    |   | ayresi*   | C | C | A | San Joaquin      | occurrences,   |
|            |   |           |   |   |   | Rivers and       | no suitable    |
|            |   |           |   |   |   | Delta;           | habitat in     |
|            |   |           |   |   |   | estuaries,       | project area;  |
|            |   |           |   |   |   | rivers and       | not likely to  |
|            |   |           |   |   |   | creeks with fine | occur.         |
|            |   |           |   |   |   | gravel           |                |
|            |   |           |   |   |   | substrates^4^    |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| **AM       |   |           |   |   |   |                  |                |
| PHIBIANS** |   |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| California |   | *Rana     | T | S | N | Lowlands and     | No CNDDB       |
| red-legged |   | aurora    |   | C | A | foothills with   | occurrences    |
| frog       |   | d         |   | , |   | deep water       | within 10      |
|            |   | raytonii* |   | P |   | remaining for at | miles of       |
|            |   |           |   |   |   | least 11 weeks;  | project area.  |
|            |   |           |   |   |   | water source is  | No suitable    |
|            |   |           |   |   |   | usually          | habitat in     |
|            |   |           |   |   |   | associated with  | project area;  |
|            |   |           |   |   |   | abundant         | not likely to  |
|            |   |           |   |   |   | emergent and or  | occur.         |
|            |   |           |   |   |   | shoreline        |                |
|            |   |           |   |   |   | vegetation^1b^   |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| California |   | *Ambystoa | C | S | N | Annual grassland | No CNDDB       |
| tiger      |   | calif     |   | C | A | and              | occurrences    |
| salamander |   | orniense* |   | , |   | valley-foothill  | within 10      |
|            |   |           |   | P |   | hardwood         | miles of       |
|            |   |           |   |   |   | habitats, vernal | project area.  |
|            |   |           |   |   |   | pools and other  | No suitable    |
|            |   |           |   |   |   | seasonal water   | habitat in     |
|            |   |           |   |   |   | sources adjacent | project area;  |
|            |   |           |   |   |   | to underground   | not likely to  |
|            |   |           |   |   |   | refuges^1b^      | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Foothill   |   | *Rana     | S | S | N | Partly shaded,   | No suitable    |
| yel        |   | boylii*   | C | C | A | shallow streams  | habitat at     |
| low-legged |   |           |   | , |   | and riffles with | project site;  |
| frog       |   |           |   | P |   | cobble size or   | not likely to  |
|            |   |           |   |   |   | larger rocky     | occur.         |
|            |   |           |   |   |   | substrate^1b^    |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Northern   |   | *Rana     | S | S | N | Permanent or     | No suitable    |
| red-legged |   | aurora    | C | C | A | temporary water  | habitat at     |
| frog       |   | aurora*   |   |   |   | bordered by      | project site;  |
|            |   |           |   |   |   | dense grassy or  | not likely to  |
|            |   |           |   |   |   | shrubby          | occur.         |
|            |   |           |   |   |   | vegetation. ^1d^ |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Western    |   | *Spea     | S | S | N | Temporary pools  | No suitable    |
| spadefoot  |   | h         | C | C | A | with sand and    | habitat at     |
| toad       |   | ammondii* |   |   |   | gravel substrate | project site;  |
|            |   |           |   |   |   | occurring within | not likely to  |
|            |   |           |   |   |   | short-grass      | occur.         |
|            |   |           |   |   |   | plains, coastal  |                |
|            |   |           |   |   |   | sage scrub,      |                |
|            |   |           |   |   |   | chaparral.^1d^   |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| **         |   |           |   |   |   |                  |                |
| REPTILES** |   |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Giant      |   | *T        | T | T | N | Current          | No suitable    |
| garter     |   | hamnophis |   |   | A | distribution     | habitat at     |
| snake      |   | gigas*    |   |   |   | Butte County to  | project site;  |
|            |   |           |   |   |   | Fresno County,   | not likely to  |
|            |   |           |   |   |   | found in         | occur.         |
|            |   |           |   |   |   | freshwater marsh |                |
|            |   |           |   |   |   | and low-gradient |                |
|            |   |           |   |   |   | streams, has     |                |
|            |   |           |   |   |   | adapted to       |                |
|            |   |           |   |   |   | human-made       |                |
|            |   |           |   |   |   | drainage canals  |                |
|            |   |           |   |   |   | and irrigation   |                |
|            |   |           |   |   |   | ditches,         |                |
|            |   |           |   |   |   | especially those |                |
|            |   |           |   |   |   | associated with  |                |
|            |   |           |   |   |   | rice             |                |
|            |   |           |   |   |   | farming.^1d^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| California |   | *P        | S | S | N | Lowlands along   | No suitable    |
| horned     |   | hrynosoma | C | C | A | sandy washes     | habitat at     |
| lizard     |   | coronatum |   | , |   | with scattered   | project site;  |
|            |   | frontale* |   | P |   | low bushes and   | not likely to  |
|            |   |           |   |   |   | open areas for   | occur.         |
|            |   |           |   |   |   | sunning; loose   |                |
|            |   |           |   |   |   | soil^1b^         |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| No         |   | *Clemmys  | S | S | N | Permanent or     | No suitable    |
| rthwestern |   | marmorata | C | C | A | nearly permanent | habitat at     |
| pond       |   | m         |   | , |   | water with       | project site;  |
| turtle     |   | armorata* |   | P |   | basking sites    | not likely to  |
|            |   |           |   |   |   | and upland for   | occur.         |
|            |   |           |   |   |   | nest sites;      |                |
|            |   |           |   |   |   | north of the San |                |
|            |   |           |   |   |   | Francisco        |                |
|            |   |           |   |   |   | Bay-Delta        |                |
|            |   |           |   |   |   | Estuary, Suisun  |                |
|            |   |           |   |   |   | marsh.^1b^       |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| **BIRDS**  |   |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Bald eagle |   | *H        | E | E | N | Lakes, rivers,   | No known CNDDB |
|            |   | aliaeetus |   |   | A | and reservoirs   | occurrences    |
|            |   | leuco     |   |   |   | adjacent to      | within 5       |
|            |   | cephalus* |   |   |   | large trees away | miles, no      |
|            |   |           |   |   |   | from human       | suitable       |
|            |   |           |   |   |   | disturbance^10^  | nesting or     |
|            |   |           |   |   |   |                  | foraging       |
|            |   |           |   |   |   |                  | habitat in     |
|            |   |           |   |   |   |                  | project area;  |
|            |   |           |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| California |   | *         | E | E | N | Nest on coastal  | No suitable    |
| brown      |   | Pelecanus |   |   | A | island lacking   | habitat at     |
| pelican    |   | occ       |   |   |   | ground           | project site;  |
|            |   | identalis |   |   |   | predators; roost | not likely to  |
|            |   | cali      |   |   |   | on piers, buoys, | occur.         |
|            |   | fornicus* |   |   |   | and other        |                |
|            |   |           |   |   |   | structures on    |                |
|            |   |           |   |   |   | water bodies     |                |
|            |   |           |   |   |   | near the         |                |
|            |   |           |   |   |   | coast^1b^        |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| California |   | *Rallus   | E | E | N | Salt marshes     | No suitable    |
| clapper    |   | lon       |   |   | A | dominated by     | habitat at     |
| rail       |   | girostris |   |   |   | pickleweed and   | project site;  |
|            |   | o         |   |   |   | cordgrass,       | not likely to  |
|            |   | bsoletus* |   |   |   | brackish         | occur.         |
|            |   |           |   |   |   | marshes, tidal   |                |
|            |   |           |   |   |   | sloughs,         |                |
|            |   |           |   |   |   | channels^10^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| California |   | *Sterna   | E | E | N | Flat, open areas | No suitable    |
| least tern |   | a         |   |   | A | along coast near | habitat at     |
|            |   | ntillarum |   |   |   | inshore          | project site;  |
|            |   | (a        |   |   |   | estuaries, river | not likely to  |
|            |   | lbifrons) |   |   |   | mouths, or       | occur.         |
|            |   | browni*   |   |   |   | shallows, sandy  |                |
|            |   |           |   |   |   | ground with      |                |
|            |   |           |   |   |   | little or no     |                |
|            |   |           |   |   |   | vegetation,      |                |
|            |   |           |   |   |   | bays, freshwater |                |
|            |   |           |   |   |   | ponds, channels, |                |
|            |   |           |   |   |   | lakes^10^        |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Northern   |   | *Strix    | T | N | N | Heavily forested | Known          |
| spotted    |   | occ       |   | A | A | areas in the     | occurrences    |
| owl        |   | identalis |   |   |   | coastal ranges   | within 5 miles |
|            |   | caurina*  |   |   |   | of southern      | of project     |
|            |   |           |   |   |   | California from  | site. All      |
|            |   |           |   |   |   | San Luis Obispo  | occurrences on |
|            |   |           |   |   |   | Co. to San Diego | wooded slopes  |
|            |   |           |   |   |   | Co., including   | of the hills   |
|            |   |           |   |   |   | the San          | between Napa   |
|            |   |           |   |   |   | Bernardino and   | Valley and     |
|            |   |           |   |   |   | San Jacinto      | Sonoma valley  |
|            |   |           |   |   |   | mountains, along | No suitable    |
|            |   |           |   |   |   | the coast of     | habitat at     |
|            |   |           |   |   |   | northern         | project site;  |
|            |   |           |   |   |   | California from  | not likely to  |
|            |   |           |   |   |   | Marin Co. north, | occur.         |
|            |   |           |   |   |   | and in the       |                |
|            |   |           |   |   |   | Sierra Nevada    |                |
|            |   |           |   |   |   | from Plumas Co.  |                |
|            |   |           |   |   |   | to extreme       |                |
|            |   |           |   |   |   | northern Kern    |                |
|            |   |           |   |   |   | Co. Isolated     |                |
|            |   |           |   |   |   | populations also |                |
|            |   |           |   |   |   | occur in the     |                |
|            |   |           |   |   |   | Santa Cruz       |                |
|            |   |           |   |   |   | Mountains and    |                |
|            |   |           |   |   |   | Santa Lucia      |                |
|            |   |           |   |   |   | Mountains. ^1d^  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Western    |   | *C        | T | S | N | Coastal beaches, | No suitable    |
| snowy      |   | haradrius |   | C | A | sandy areas near | habitat at     |
| plover     |   | ale       |   |   |   | estuaries, salt  | project site;  |
|            |   | xandrinus |   |   |   | ponds, river     | not likely to  |
|            |   | nivosus*  |   |   |   | mouths, levees   | occur.         |
|            |   |           |   |   |   | along inland     |                |
|            |   |           |   |   |   | salt ponds^10^   |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Mountain   |   | *C        | P | S | N | Found mainly in  | No suitable    |
| plover     |   | haradrius | T | C | A | the high plains  | habitat at     |
|            |   | montanus* |   |   |   | and semi-desert  | project site;  |
|            |   |           |   |   |   | regions of the   | not likely to  |
|            |   |           |   |   |   | western United   | occur.         |
|            |   |           |   |   |   | States.          |                |
|            |   |           |   |   |   | Approximately    |                |
|            |   |           |   |   |   | 90% of the North |                |
|            |   |           |   |   |   | American         |                |
|            |   |           |   |   |   | population       |                |
|            |   |           |   |   |   | winters in       |                |
|            |   |           |   |   |   | California.      |                |
|            |   |           |   |   |   | Forages on       |                |
|            |   |           |   |   |   | alkaline flats,  |                |
|            |   |           |   |   |   | plowed ground,   |                |
|            |   |           |   |   |   | grazed pasture,  |                |
|            |   |           |   |   |   | and dry short    |                |
|            |   |           |   |   |   | grass            |                |
|            |   |           |   |   |   | prairie.^1d^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Western    |   | *Coccyzus | C | E | N | Found only along | No suitable    |
| yel        |   | a         |   |   | A | the upper        | habitat at     |
| low-billed |   | mericanus |   |   |   | Sacramento       | project site;  |
| cuckoo     |   | occi      |   |   |   | Valley portion   | not likely to  |
|            |   | dentalis* |   |   |   | of the           | occur.         |
|            |   |           |   |   |   | Sacramento       |                |
|            |   |           |   |   |   | River, the       |                |
|            |   |           |   |   |   | Feather River in |                |
|            |   |           |   |   |   | Sutter County,   |                |
|            |   |           |   |   |   | the south fork   |                |
|            |   |           |   |   |   | of the Kern      |                |
|            |   |           |   |   |   | River in Kern    |                |
|            |   |           |   |   |   | County, and      |                |
|            |   |           |   |   |   | along the Santa  |                |
|            |   |           |   |   |   | Ana, Amargosa,   |                |
|            |   |           |   |   |   | and lower        |                |
|            |   |           |   |   |   | Colorado rivers. |                |
|            |   |           |   |   |   | Nests in         |                |
|            |   |           |   |   |   | c                |                |
|            |   |           |   |   |   | ottonwood-willow |                |
|            |   |           |   |   |   | riparian forest, |                |
|            |   |           |   |   |   | has been known   |                |
|            |   |           |   |   |   | to nest in       |                |
|            |   |           |   |   |   | walnut and       |                |
|            |   |           |   |   |   | almond orchards  |                |
|            |   |           |   |   |   | in California.   |                |
|            |   |           |   |   |   | ^1d^             |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Allen's    |   | *Se       | S | N | N | Brushy slopes,   | No suitable    |
| h          |   | lasphorus | C | A | A | chaparral,       | habitat at     |
| ummingbird |   | sasin*    |   |   |   | thickets and     | project site;  |
|            |   |           |   |   |   | open coniferous  | not likely to  |
|            |   |           |   |   |   | forests.^5^      | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| American   |   | *Botaurus | S | N | N | Fresh and salt   | No suitable    |
| bittern    |   | lent      | C | A | A | water marshes    | habitat at     |
|            |   | iginosus* |   |   |   | and wet meadows  | project site;  |
|            |   |           |   |   |   | with tall        | not likely to  |
|            |   |           |   |   |   | emergents such   | occur.         |
|            |   |           |   |   |   | as cattail and   |                |
|            |   |           |   |   |   | bulrush^5^       |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| American   |   | *Falco    | D | E | N | Ledges, cliffs,  | No suitable    |
| peregrine  |   | p         |   |   | A | caves near       | habitat at     |
| falcon     |   | eregrinus |   |   |   | lakes, rivers,   | project site;  |
|            |   | anatum*   |   |   |   | coastal and      | not likely to  |
|            |   |           |   |   |   | inland marshes,  | occur.         |
|            |   |           |   |   |   | estuaries, or    |                |
|            |   |           |   |   |   | riparian         |                |
|            |   |           |   |   |   | areas^10^        |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Bank       |   | *Riparia  | N | T | N | Riparian         | No suitable    |
| swallow    |   | riparia*  | A |   | A | vegetation,      | habitat at     |
|            |   |           |   |   |   | vertical banks   | project site;  |
|            |   |           |   |   |   | or cliffs with   | not likely to  |
|            |   |           |   |   |   | fine sandy soils | occur.         |
|            |   |           |   |   |   | near streams,    |                |
|            |   |           |   |   |   | rivers, lakes,   |                |
|            |   |           |   |   |   | and ocean^1b^    |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Bell's     |   | *A        | S | S | N | Chaparral,       | No suitable    |
| sage       |   | mphispiza | C | C | A | coastal scrub^2^ | habitat at     |
| sparrow    |   | belli     |   |   |   |                  | project site;  |
|            |   | belli*    |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Black      |   | *Cy       | S | S | N | Breeds very      | No suitable    |
| swift      |   | pseloides | C | C | A | locally in four  | habitat at     |
|            |   | niger*    |   |   |   | regions: the     | project site;  |
|            |   |           |   |   |   | central and      | not likely to  |
|            |   |           |   |   |   | southern Sierra; | occur.         |
|            |   |           |   |   |   | San Mateo, Santa |                |
|            |   |           |   |   |   | Cruz, and        |                |
|            |   |           |   |   |   | Monterey         |                |
|            |   |           |   |   |   | counties; the    |                |
|            |   |           |   |   |   | San Gabriel, San |                |
|            |   |           |   |   |   | Bernardino, and  |                |
|            |   |           |   |   |   | San Jacinto; and |                |
|            |   |           |   |   |   | a limited area   |                |
|            |   |           |   |   |   | in the Cascade   |                |
|            |   |           |   |   |   | Range. Nests     |                |
|            |   |           |   |   |   | have been found  |                |
|            |   |           |   |   |   | only on cliffs   |                |
|            |   |           |   |   |   | behind or        |                |
|            |   |           |   |   |   | adjacent to      |                |
|            |   |           |   |   |   | waterfalls or    |                |
|            |   |           |   |   |   | steep coastal    |                |
|            |   |           |   |   |   | cliffs. ^1d^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Black tern |   | *C        | S | S | N | Inhabits fresh   | No suitable    |
|            |   | hlidonias | C | C | A | and emergent     | habitat at     |
|            |   | niger*    |   |   |   | wetlands;        | project site;  |
|            |   |           |   |   |   | restricted to    | not likely to  |
|            |   |           |   |   |   | freshwater       | occur.         |
|            |   |           |   |   |   | habitats while   |                |
|            |   |           |   |   |   | breeding, can be |                |
|            |   |           |   |   |   | found on bays,   |                |
|            |   |           |   |   |   | salt ponds,      |                |
|            |   |           |   |   |   | river mouths,    |                |
|            |   |           |   |   |   | and pelagic      |                |
|            |   |           |   |   |   | waters in spring |                |
|            |   |           |   |   |   | and fall         |                |
|            |   |           |   |   |   | migration.^1d^   |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| California |   | *L        | S | T | N | Tidal salt       | No suitable    |
| black rail |   | aterallus | C | , | A | marshes,         | habitat at     |
|            |   | ja        |   | F |   | freshwater and   | project site;  |
|            |   | maicensis |   | P |   | brackish         | not likely to  |
|            |   | cotu      |   |   |   | marshes^1b^      | occur.         |
|            |   | rniculus* |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| California |   | *         | S | N | N | Cismontane       | No suitable    |
| thrasher   |   | Toxostoma | C | A | A | woodland,        | habitat at     |
|            |   | r         |   |   |   | chaparral, and   | project site;  |
|            |   | edivivum* |   |   |   | riparian         | not likely to  |
|            |   |           |   |   |   | woodland^6a^     | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Common     |   | *Gavia    | S | S | N | Estuaries and    | No suitable    |
| Loon       |   | immer*    | C | C | A | subtidal marine  | habitat at     |
|            |   |           |   |   |   | habitats from    | project site;  |
|            |   |           |   |   |   | September        | not likely to  |
|            |   |           |   |   |   | through May^6a^  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| F          |   | *Buteo    | S | S | N | Grassland and    | No suitable    |
| erruginous |   | regalis*  | C | C | A | agricultural     | habitat at     |
| hawk       |   |           |   |   |   | areas            | project site;  |
|            |   |           |   |   |   | (winter)^2^      | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| G          |   | *A        | S | N | N | Grasslands,      | No suitable    |
| rasshopper |   | mmodramus | C | A | A | meadows, fields, | habitat at     |
| sparrow    |   | sa        |   |   |   | pastures^5^      | project site;  |
|            |   | vannarum* |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Greater    |   | *Grus     | N | T | N | Found in wet     | No suitable    |
| sandhill   |   | c         | A | , | A | meadows          | habitat at     |
| crane      |   | anadensis |   | F |   | interspersed     | project site;  |
|            |   | tabida*   |   | P |   | with emergent    | not likely to  |
|            |   |           |   |   |   | marsh. Central   | occur.         |
|            |   |           |   |   |   | Valley wintering |                |
|            |   |           |   |   |   | ground in Butte  |                |
|            |   |           |   |   |   | County and the   |                |
|            |   |           |   |   |   | Sacramento-San   |                |
|            |   |           |   |   |   | Joaquin Delta    |                |
|            |   |           |   |   |   | near Lodi, San   |                |
|            |   |           |   |   |   | Joaquin          |                |
|            |   |           |   |   |   | County.^1d^      |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Hermit     |   | *         | S | N | N | Mature ponderosa | No suitable    |
| warbler    |   | Dendroica | C | A | A | pine, montane    | habitat at     |
|            |   | occi      |   |   |   | h                | project site;  |
|            |   | dentalis* |   |   |   | ardwood-conifer, | not likely to  |
|            |   |           |   |   |   | mixed conifer,   | occur.         |
|            |   |           |   |   |   | Douglas fir,     |                |
|            |   |           |   |   |   | redwood, red fir |                |
|            |   |           |   |   |   | and Jeffrey pine |                |
|            |   |           |   |   |   | forests^6a^      |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Lawrence's |   | *         | S | N | N | Valley foothill  | No suitable    |
| goldfinch  |   | Carduelis | C | A | A | hardwood, valley | habitat at     |
|            |   | l         |   |   |   | foothill         | project site;  |
|            |   | awrencei* |   |   |   | hard             | not likely to  |
|            |   |           |   |   |   | wood-conifer^6a^ | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Lewis'     |   | *M        | S | N | N | Open pine-oak    | No suitable    |
| woodpecker |   | elanerpes | C | A | A | woodlands,       | habitat at     |
|            |   | lewis*    |   |   |   | coniferous       | project site;  |
|            |   |           |   |   |   | forests, and     | not likely to  |
|            |   |           |   |   |   | riparian         | occur.         |
|            |   |           |   |   |   | woodlands.       |                |
|            |   |           |   |   |   | Associates with  |                |
|            |   |           |   |   |   | burned and       |                |
|            |   |           |   |   |   | logged           |                |
|            |   |           |   |   |   | woodlands.^5^    |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Little     |   | *         | S | E | N | Brushy habitat   | No suitable    |
| willow     |   | Empidonax | C |   | A | in wet areas,    | habitat at     |
| flycatcher |   | trailii   |   |   |   | willow thickets, | project site;  |
|            |   | extimus*  |   |   |   | pastures,        | not likely to  |
|            |   |           |   |   |   | meadows.^5^      | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Loggerhead |   | *Lanius   | S | S | N | Open canopied    | No suitable    |
| shrike     |   | ludo      | C | C | A | valley and       | habitat at     |
|            |   | vicianus* |   |   |   | foothill         | project site;  |
|            |   |           |   |   |   | hardwood,        | not likely to  |
|            |   |           |   |   |   | h                | occur.         |
|            |   |           |   |   |   | ardwood-conifer, |                |
|            |   |           |   |   |   | riparian,        |                |
|            |   |           |   |   |   | pinion-juniper,  |                |
|            |   |           |   |   |   | juniper, Joshua  |                |
|            |   |           |   |   |   | tree^6a^         |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| L          |   | *Numenius | S | S | N | Intertidal       | No suitable    |
| ong-billed |   | am        | C | C | A | mudflats of      | habitat at     |
| curlew     |   | ericanus* |   |   |   | large estuaries, | project site;  |
|            |   |           |   |   |   | upland           | not likely to  |
|            |   |           |   |   |   | herbaceous       | occur.         |
|            |   |           |   |   |   | areas, and       |                |
|            |   |           |   |   |   | cropland in      |                |
|            |   |           |   |   |   | winter           |                |
|            |   |           |   |   |   | months^6a^       |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Oak        |   | *B        | S | N | N | Intact oak or    | No suitable    |
| titmouse   |   | aeolophus | L | A | A | oak-pine         | habitat at     |
|            |   | i         | C |   |   | woodlands on the | project site;  |
|            |   | nornatus* |   |   |   | Pacific slope    | not likely to  |
|            |   |           |   |   |   | encompassing     | occur.         |
|            |   |           |   |   |   | several states   |                |
|            |   |           |   |   |   | and Mexico.      |                |
|            |   |           |   |   |   | Nests in mostly  |                |
|            |   |           |   |   |   | natural          |                |
|            |   |           |   |   |   | cavities,        |                |
|            |   |           |   |   |   | sometimes old    |                |
|            |   |           |   |   |   | woodpecker holes |                |
|            |   |           |   |   |   | or artificial    |                |
|            |   |           |   |   |   | boxes.^6a^       |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| O          |   | *Contopus | S | N | N | Mixed conifer,   | No suitable    |
| live-sided |   | borealis  | C | A | A | montane          | habitat at     |
| flycatcher |   | (         |   |   |   | h                | project site;  |
|            |   | cooperi)* |   |   |   | ardwood-conifer, | not likely to  |
|            |   |           |   |   |   | Douglas fir,     | occur.         |
|            |   |           |   |   |   | redwood, red     |                |
|            |   |           |   |   |   | fir, lodgepole   |                |
|            |   |           |   |   |   | forest.^6a^      |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Rufous     |   | *Se       | S | N | N | Valley and       | No suitable    |
| h          |   | lasphorus | C | A | A | foothill         | habitat at     |
| ummingbird |   | rufus*    |   |   |   | woodland,        | project site;  |
|            |   |           |   |   |   | hardwood-conifer | not likely to  |
|            |   |           |   |   |   | forest, riparian | occur.         |
|            |   |           |   |   |   | woodland, and    |                |
|            |   |           |   |   |   | chaparral during |                |
|            |   |           |   |   |   | migration^6a^    |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Saltmarsh  |   | *G        | S | S | N | San Francisco    | No suitable    |
| common     |   | eothlypis | C | C | A | Bay region in    | habitat at     |
| ye         |   | trichas   |   |   |   | fresh and        | project site;  |
| llowthroat |   | sinuosa*  |   |   |   | saltwater        | not likely to  |
|            |   |           |   |   |   | marshes with     | occur.         |
|            |   |           |   |   |   | thick continuous |                |
|            |   |           |   |   |   | cover to water   |                |
|            |   |           |   |   |   | surface, tall    |                |
|            |   |           |   |   |   | grasses, tule    |                |
|            |   |           |   |   |   | patches, and     |                |
|            |   |           |   |   |   | willows for      |                |
|            |   |           |   |   |   | nesting^1b^      |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| S          |   | *Asio     | S | S | N | Meadows,         | No suitable    |
| hort-eared |   | flammeus* | C | C | A | grasslands,      | habitat at     |
| owl        |   |           |   |   |   | fresh and salt   | project site;  |
|            |   |           |   |   |   | wetlands, dunes, | not likely to  |
|            |   |           |   |   |   | irrigated        | occur.         |
|            |   |           |   |   |   | land^6a^         |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| San Pablo  |   | *         | S | S | N | Inhabits salt    | No suitable    |
| song       |   | Melospiza | C | C | A | marshes of San   | habitat at     |
| sparrow    |   | melodia   |   |   |   | Pablo Bay.^1d^   | project site;  |
|            |   | samuelis* |   |   |   |                  | not likely to  |
|            |   |           |   |   |   |                  | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Tricolored |   | *Agelaius | S | S | N | Open valleys and | No suitable    |
| blackbird  |   | tricolor* | C | C | A | foothills in     | habitat at     |
|            |   |           |   |   |   | streamside       | project site;  |
|            |   |           |   |   |   | timber, alfalfa  | not likely to  |
|            |   |           |   |   |   | and rice fields, | occur.         |
|            |   |           |   |   |   | blackberry       |                |
|            |   |           |   |   |   | thickets, tules  |                |
|            |   |           |   |   |   | and cattails on  |                |
|            |   |           |   |   |   | and around       |                |
|            |   |           |   |   |   | marshes and      |                |
|            |   |           |   |   |   | reservoirs^5^    |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Vaux's     |   | *Chaetura | S | S | N | Redwood and      | No suitable    |
| swift      |   | vauxi*    | C | C | A | Douglas fir      | habitat at     |
|            |   |           |   |   |   | forests with     | project site;  |
|            |   |           |   |   |   | hollow trees and | not likely to  |
|            |   |           |   |   |   | snags^6a^        | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Western    |   | *Athene   | S | S | N | Open, dry annual | No known CNDDB |
| burrowing  |   | cu        | C | C | A | or perennial     | occurrences    |
| owl        |   | nicularia |   |   |   | grasslands,      | within 10      |
|            |   | hypugaea* |   |   |   | deserts and      | miles. No      |
|            |   |           |   |   |   | scrublands       | suitable       |
|            |   |           |   |   |   | characterized by | habitat at     |
|            |   |           |   |   |   | low-growing      | project site;  |
|            |   |           |   |   |   | vegetation with  | not likely to  |
|            |   |           |   |   |   | underground      | occur.         |
|            |   |           |   |   |   | refuges^1b^      |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| W          |   | *Plegadis | S | S | N | Prefers shallow  | No suitable    |
| hite-faced |   | chihi*    | C | C | A | grassy marshes.  | habitat at     |
| ibis       |   |           |   |   |   | The wintering    | project site;  |
|            |   |           |   |   |   | population is in | not likely to  |
|            |   |           |   |   |   | just four        | occur.         |
|            |   |           |   |   |   | localities:      |                |
|            |   |           |   |   |   | Merced Co.,      |                |
|            |   |           |   |   |   | Imperial Valley, |                |
|            |   |           |   |   |   | San Diego Co.,   |                |
|            |   |           |   |   |   | and Ventura Co.  |                |
|            |   |           |   |   |   | Breeding         |                |
|            |   |           |   |   |   | populations no   |                |
|            |   |           |   |   |   | longer exist in  |                |
|            |   |           |   |   |   | California.^1d^  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Wh         |   | *Elanus   | S | F | N | Nests among      | No suitable    |
| ite-tailed |   | leucurus* | C | P | A | dense-topped     | habitat at     |
| (black-s   |   |           |   |   |   | trees; forages   | project site;  |
| houldered) |   |           |   |   |   | in open          | not likely to  |
| kite       |   |           |   |   |   | grasslands,      | occur.         |
|            |   |           |   |   |   | meadows or       |                |
|            |   |           |   |   |   | marshes^1b^      |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| *          |   |           |   |   |   |                  |                |
| *Mammals** |   |           |   |   |   |                  |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Riparian   |   | *S        | E | E | N | Found in San     | No suitable    |
| brush      |   | ylvilagus |   |   | A | Joaquin Valley   | habitat at     |
| rabbit     |   | bachmani  |   |   |   | native riparian  | project site;  |
|            |   | riparius* |   |   |   | areas with large | not likely to  |
|            |   |           |   |   |   | clumps of dense  | occur.         |
|            |   |           |   |   |   | shrubs, low      |                |
|            |   |           |   |   |   | growing vines,   |                |
|            |   |           |   |   |   | and some tall    |                |
|            |   |           |   |   |   | shrubs and       |                |
|            |   |           |   |   |   | scrubby          |                |
|            |   |           |   |   |   | trees.^1d^       |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Riparian   |   | *Neotoma  | E | S | N | Nothing specific | Known only on  |
| (San       |   | fuscipes  |   | C | A | has been         | the San        |
| Joaquin    |   | riparia*  |   |   |   | recorded about   | Joaquin,       |
| Valley)    |   |           |   |   |   | the habitat of   | Stanislaus,    |
| woodrat    |   |           |   |   |   | Riparian         | and Tuolumne   |
|            |   |           |   |   |   | Woodrats. It has | rivers; not    |
|            |   |           |   |   |   | been noted that  | likely to      |
|            |   |           |   |   |   | they             | occur.         |
|            |   |           |   |   |   | occasionally use |                |
|            |   |           |   |   |   | nest boxes       |                |
|            |   |           |   |   |   | placed in trees  |                |
|            |   |           |   |   |   | for Wood Ducks   |                |
|            |   |           |   |   |   | along the lower  |                |
|            |   |           |   |   |   | San Joaquin and  |                |
|            |   |           |   |   |   | Tuolumne         |                |
|            |   |           |   |   |   | rivers.^1d^      |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Salt marsh |   | *Reithr   | E | E | N | Saline emergent  | No suitable    |
| harvest    |   | odontomys |   | , | A | wetlands where   | habitat at     |
| mouse      |   | rav       |   | F |   | pickleweed is    | project site;  |
|            |   | iventris* |   | P |   | dominate         | not likely to  |
|            |   |           |   |   |   | vegetation^1b^   | occur.         |
+------------+---+-----------+---+---+---+------------------+----------------+
| Greater    |   | *Eumops   | S | S | N | Open semi-arid,  | No known       |
| western    |   | perotis   | C | C | A | arid conifer and | occurrences at |
| m          |   | cali      |   |   |   | deciduous        | project site,  |
| astiff-bat |   | fornicus* |   |   |   | woodlands,       | no evidence of |
|            |   |           |   |   |   | coastal scrub,   | occurrence in  |
|            |   |           |   |   |   | grasslands, palm | project area;  |
|            |   |           |   |   |   | oases,           | low potential  |
|            |   |           |   |   |   | chaparral,       | to occur.      |
|            |   |           |   |   |   | desert scrub,    |                |
|            |   |           |   |   |   | and urban        |                |
|            |   |           |   |   |   | areas^6b^        |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Fringed    |   | *Myotis   | S | N | N | Piñon-juniper    | No known       |
| myotis bat |   | th        | C | A | A | forest, valley   | occurrences at |
|            |   | ysanodes* |   |   |   | and foothill     | project site,  |
|            |   |           |   |   |   | hardwood         | no evidence of |
|            |   |           |   |   |   | woodlands and    | occurrence in  |
|            |   |           |   |   |   | hardwood-conifer | project area;  |
|            |   |           |   |   |   | forest^6b^       | low potential  |
|            |   |           |   |   |   |                  | to occur.      |
+------------+---+-----------+---+---+---+------------------+----------------+
| Long-eared |   | *Myotis   | S | N | N | Brush, woodland  | No known       |
| myotis bat |   | evotis*   | C | A | A | and forest       | occurrences at |
|            |   |           |   |   |   | habitats^6b^     | project site,  |
|            |   |           |   |   |   |                  | no evidence of |
|            |   |           |   |   |   |                  | occurrence in  |
|            |   |           |   |   |   |                  | project area;  |
|            |   |           |   |   |   |                  | low potential  |
|            |   |           |   |   |   |                  | to occur.      |
+------------+---+-----------+---+---+---+------------------+----------------+
| L          |   | *Myotis   | S | N | N | Woodlands,       | No known       |
| ong-legged |   | volans*   | C | A | A | forests,         | occurrences at |
| myotis bat |   |           |   |   |   | chaparral,       | project site,  |
|            |   |           |   |   |   | coastal          | no evidence of |
|            |   |           |   |   |   | scrub^6b^        | occurrence in  |
|            |   |           |   |   |   |                  | project area;  |
|            |   |           |   |   |   |                  | low potential  |
|            |   |           |   |   |   |                  | to occur.      |
+------------+---+-----------+---+---+---+------------------+----------------+
| Sm         |   | *Myotis   | S | N | N | Inhabitants of   | No known       |
| all-footed |   | cil       | C | A | A | the deserts,     | occurrences at |
| myotis bat |   | iolabrum* |   |   |   | semideserts, and | project site,  |
|            |   |           |   |   |   | desert           | no evidence of |
|            |   |           |   |   |   | mountains. ^1d^  | occurrence in  |
|            |   |           |   |   |   |                  | project area;  |
|            |   |           |   |   |   |                  | low potential  |
|            |   |           |   |   |   |                  | to occur.      |
+------------+---+-----------+---+---+---+------------------+----------------+
| Yuma       |   | *Myotis   | S | S | N | Open forests and | No known       |
| myotis bat |   | yu        | C | C | A | woodlands near   | occurrences at |
|            |   | manensis* |   |   |   | water^6b^        | project site,  |
|            |   |           |   |   |   |                  | no evidence of |
|            |   |           |   |   |   |                  | occurrence in  |
|            |   |           |   |   |   |                  | project area;  |
|            |   |           |   |   |   |                  | low potential  |
|            |   |           |   |   |   |                  | to occur.      |
+------------+---+-----------+---+---+---+------------------+----------------+
| Pacific    |   | *Cor      | S | S | N | Humid coastal    | No known       |
| western    |   | ynorhinus | C | C | A | regions; roosts  | occurrences at |
| big-eared  |   | (         |   |   |   | include          | project site,  |
| bat        |   | Plecotus) |   |   |   | limestone caves, | no evidence of |
|            |   | t         |   |   |   | lava tubes,      | occurrence in  |
|            |   | ownsendii |   |   |   | mines, and       | project area;  |
|            |   | to        |   |   |   | buildings^6b^    | low potential  |
|            |   | wnsendii* |   |   |   |                  | to occur.      |
+------------+---+-----------+---+---+---+------------------+----------------+
| San        |   | *Pe       | S | N | N | Occurs in dry,   | No suitable    |
| Joaquin    |   | rognathus | C | A | A | open, sandy      | habitat at     |
| pocket     |   | i         |   |   |   | grasslands or    | project site;  |
| mouse      |   | nornatus* |   |   |   | scrub areas in   | not likely to  |
|            |   |           |   |   |   | the Central and  | occur.         |
|            |   |           |   |   |   | Salinas          |                |
|            |   |           |   |   |   | valleys.^1d^     |                |
+------------+---+-----------+---+---+---+------------------+----------------+
| Suisun     |   | *Sorex    | S | S | N | Tidal marshes    | No suitable    |
| ornate     |   | ornatus   | C | C | A | and brackish     | habitat at     |
| shrew      |   | sinuosus* |   |   |   | marshes          | project site;  |
|            |   |           |   |   |   | dominated by     | not likely to  |
|            |   |           |   |   |   | California       | occur.         |
|            |   |           |   |   |   | bulrush and      |                |
|            |   |           |   |   |   | cattail near San |                |
|            |   |           |   |   |   | Pablo and Suisun |                |
|            |   |           |   |   |   | bays.^1d^        |                |
+------------+---+-----------+---+---+---+------------------+----------------+

+-----------------------------------------------------------------------+
| NA = Information not available or not applicable.                     |
|                                                                       |
| ^a^Federal Status Codes:                                              |
|                                                                       |
| D = Delisted. Species status to be monitored for 5 years.             |
|                                                                       |
| E = Endangered. Species in danger of extinction throughout all or a   |
| significant portion of its range.                                     |
|                                                                       |
| T = Threatened. Species likely to become endangered within the        |
| foreseeable future.                                                   |
|                                                                       |
| PE = Proposed for listing as endangered.                              |
|                                                                       |
| PT = Proposed for listing as threatened.                              |
|                                                                       |
| PD = Proposed for delisting                                           |
|                                                                       |
| C = Candidate for listing.                                            |
|                                                                       |
| SC = Species of concern.                                              |
|                                                                       |
| SLC = Species of local concern.                                       |
|                                                                       |
| P = Protected under the Marine Mammal Protection Act.                 |
|                                                                       |
| MB = Migratory bird.                                                  |
|                                                                       |
| ^b^California Status Codes:                                           |
|                                                                       |
| E = Endangered. Species whose continued existence in California is in |
| jeopardy.                                                             |
|                                                                       |
| T = Threatened. Species likely to become endangered within the        |
| foreseeable future.                                                   |
|                                                                       |
| R = Rare. Plant species, although not presently threatened with       |
| extinction, may become endangered in the forseeable future.           |
|                                                                       |
| SC = California Department of Fish and Game species of special        |
| concern.                                                              |
|                                                                       |
| FP & P = Fully protected and protected species defined in the State   |
| of California under Sections 3511 and 4700 of the Fish and Game Code. |
|                                                                       |
| ^c^California Native Plant Society Status Codes:                      |
|                                                                       |
| 1A = Plants presumed extinct in California.                           |
|                                                                       |
| 1B = Plants are rare, threatened or endangered in California and      |
| elsewhere.                                                            |
|                                                                       |
| 2 = Plants are rare, threatened, or endangered in California, but     |
| more common elsewhere.                                                |
|                                                                       |
| 3 = Plants about which more information is needed.                    |
|                                                                       |
| 4 = Plants of limited distribution.                                   |
|                                                                       |
| H = Hybrid. Rejected for classification by the CNPS Inventory.        |
|                                                                       |
| \*Plant species possibly extirpated from the area                     |
|                                                                       |
| \*\*Sources for supporting habitat descriptions:                      |
|                                                                       |
| 1a California Native Plant Society Electronic Database                |
|                                                                       |
| 1b California Natural Diversity Data Base                             |
|                                                                       |
| 1c CalFlora Electronic Data Base                                      |
|                                                                       |
| 1d California Department of Fish and Game, Habitat Conservation       |
| Planning Branch, Species Accounts Online                              |
|                                                                       |
| 2 Samuel McGinnis, Wildlife of the San Francisco Bay Area             |
|                                                                       |
| 3 Jennings and Hayes, Amphibian and Reptile Species of Special        |
| Concern in California                                                 |
|                                                                       |
| 4 Samuel McGinnis, Freshwater Fishes of California                    |
|                                                                       |
| 5 John Terres, The Audubon Society Encyclopedia of North American     |
| Birds                                                                 |
|                                                                       |
| 6a Zeiner et al., California's Wildlife, Volume II, Birds             |
|                                                                       |
| 6b Zeiner et al., California's Wildlife, Volume III, Mammals          |
|                                                                       |
| 7 David Wright, Invertebrate Biologist, US Fish and Wildlife Service, |
| Personal Communication                                                |
|                                                                       |
| 8 J. W. Tilden, Butterflies of the San Francisco Bay Region           |
|                                                                       |
| 9 James Hickman, The Jepson Manual, Higher Plants of California       |
|                                                                       |
| 10 BioSystems Analysis, Life on the Edge, A Guide to California's     |
| Endangered Natural Resources                                          |
|                                                                       |
| 11 Richard A. Arnold, 1994.                                           |
|                                                                       |
| 12 Phillip Munz, A California Flora and Supplement                    |
|                                                                       |
| 13 Barr, C. B., 1991. The distribution, habitat, and status of the    |
| Valley Elderberry Longhorn Beetle *Desmocerus californicus dimorphus* |
| Fisher (Coleoptera: Cerambycidae). U.S. Fish and Wildlife Service.    |
| Sacramento, CA.                                                       |
|                                                                       |
| 14 Busby, P. J., T.C. Wainwright, G.J. Bryant, L.J. Lierheimer, R.S.  |
| Waples, F. W. Waknitz, and I.V. Lagomarsino. 1996. Status Review of   |
| West Coast Steelhead from Washington, Idaho, Oregon, and California.  |
| NOAA Technical Memorandum NMFS-NWFSC-27.                              |
| http://www.nwfsc.noaa.gov/pubs/tm/tm27/tm27.htm**.**                  |
|                                                                       |
| 15 Myers, J. M., R. G. Kope, G. J. Bryant, D. Teel, L. J. Lierheimer, |
| T. C. Wainwright, W. S. Grant, F. W. Waknitz, K. Neely, S. T.         |
| Lindley, and R. S. Waples. 1998. Status Review of Chinook Salmon from |
| Washington, Idaho, Oregon, and California**.** NOAA Technical         |
| Memorandum NMFS-NWFSC-35.                                             |
| http://www.nwfsc.noaa.gov/pubs/tm/tm35/index.htm.                     |
|                                                                       |
| 16 Opler, P.A., R.E. Stanford, H. Pavulaan. Butterflies of North      |
| America online, U.S. Geological Survey,                               |
| http://www.npwrc.usgs.gov/resource/distr/lepid/bflyusa/usa/462.htm    |
+-----------------------------------------------------------------------+

characteristics for one federally listed species: Central California
Coast (CCC) steelhead (*Oncorhynchus mykiss*) (USFWS 2003; NMFS 2003).
This determination included evaluating the potential for the California
red-legged frog (*Rana aurora draytonii*) to occur in the project area.
The project area was determined to be outside the known range for the
California red-legged frog (USFWS 2003). Because Hopper Creek and Beard
Ditch are disturbed, maintained, and channelized streams that are dry
for a majority of the year, it was determined that these drainages do
not offer suitable habitat for the California red-legged frog.

Bird species protected by the Migratory Bird Treaty Act also have the
potential to occur within the project area.

Steelhead are native to the north Pacific Ocean and in North America are
found in coastal streams from Alaska south to northwestern Mexico (Moyle
1976; Busby et al. 1996). The CCC steelhead Evolutionarily Significant
Unit (ESU) (*Oncorhynchus mykiss*) is federally listed as threatened and
state listed as species of special concern. The NMFS classifies and
lists steelhead by ESU. "To be considered an ESU, a population or group
of populations must (1) be substantially reproductively isolated from
other populations, and (2) contribute substantially to the ecological or
genetic diversity of the biological species" (Myers et al. 1998).
Factors used in determining ESUs include spatial, temporal, and genetic
isolation, maturation rates, and other life history traits.

The CCC steelhead ESU occupies river basins from the Russian River to
Soquel Creek, Santa Cruz County (inclusive), and the drainages of San
Francisco and San Pablo Bays (including the Napa River); excluded is the
Sacramento--San Joaquin River Basin. Steelhead migrate, as juveniles,
from freshwater to the ocean and return to freshwater as adults to
spawn. Steelhead spend most of their adult life in the open ocean. The
timing of upstream migration is correlated with higher flow events and
associated lower water temperatures. The CCC steelhead ESU migrate
upstream from the ocean between December and April to spawn in
freshwater streams, with most spawning activity occurring between
January and April. Steelhead remain in freshwater for one to four years
before they out-migrate to the open ocean during spring and early summer
(Goals Project 1999).

No steelhead were observed in Hopper Creek because it was dry at the
time of the site visit. However, the creek is considered to have
provided steelhead habitat in the past and may potentially serve as a
migratory corridor for CCC steelhead. The Section of creek adjacent to
the project site lacks gravel, overhanging banks, logs, or other habitat
to support fish spawning and rearing. Therefore, this Section of the
creek is limited in its value as fish habitat (NMFS 2003).

### Alternative 1: No Action

Under the No Action Alternative, no structural improvements would be
implemented to protect the mobile home parks from flooding. There would
be no change in habitat around the project site and there would be no
impact to biological resources, including CCC steelhead.

### Proposed Action Alternative: Construction of a Floodwall

#### Vegetation and Wildlife

Potential impacts to biological resources would primarily be due to the
construction of the floodwall, not its long-term presence. Construction
is estimated to take approximately 6 months and would be scheduled
between June 15 and October 15, 2003. Both Hopper Creek and Beard Ditch
are dry during summer months.

Several trees of 6 inches in diameter and larger, including three small
oaks, would be removed for the construction of the floodwall. Removal of
oak trees over 21 inches in diameter would need permits and Town
approval. In addition, the Town of Yountville has a policy to replace
each native tree to be removed with three or more trees at a suitable
location on or near the site.

Trees indicated to be trimmed and protected in place would be inspected
by the arborist hired by the Town during any construction within the
drip-line and during any trimming or root repair. The construction
contract specifications would include special provisions for the care,
protection, and repair of all trees with drip-lines extending into the
limits of the work. In general, trees of a diameter of less than 6
inches would be removed, as necessary, without special mitigation to
perform floodwall construction.

#### Special Status Species

As stated in Section 4.1.2, one federally listed threatened or
endangered species may have the potential to occur in the project area,
the CCC steelhead. However, the CCC steelhead would not be directly
impacted by the proposed project because construction activities would
occur only during the summer, when the Hopper Creek and Beard Ditch
channels are dry, and any activity in these areas would be for temporary
access to the construction sites.

To minimize any potential indirect effects to CCC steelhead in the
vicinity or downstream of the project from increased sediment load when
flows return to the stream, the following minimization measures would be
implemented by the Town:

-   All work within Hopper Creek, Beard Ditch, and their respective
    riparian areas would be conducted during the dry season (July 15
    through October 15).

-   All construction materials and fill would be stored and contained in
    a designated area that is located away from channel areas to prevent
    inadvertent transport of materials into the adjacent creek channel.

-   Fueling, cleaning, or maintenance of equipment would be prohibited
    except in designated areas located at least 100 feet from the creek
    or ditch. In addition, the contractor would maintain adequate
    materials at the site for containment and cleanup of any spills.

-   Erosion control measures would be implemented in all disturbed
    areas. After construction is completed and prior to October 15,
    erosion control measures would consist of temporary seeding, the
    placing of straw mulch, or implementation of other measures pursuant
    to a Storm Water Pollution Prevention Plan approved by the Regional
    Water Quality Control Board. Any disturbed soils on a gradient of
    over 30 percent would also have an erosion control blanket
    installed. Permanent revegetation or tree replanting would take
    place in small openings in the erosion control blanket, with
    suitable native species that are compatible with the existing
    vegetation.

Implementation of these measures would ensure that CCC steelhead would
not be adversely affected by the Proposed Action and that project
activities would be in compliance with Section 7 of the Endangered
Species Act.

Bird species protected by the Migratory Bird Treaty Act would not be
affected by the proposed floodwall project because the proposed
construction window is outside of the breeding season for most migratory
bird species.

### Alternative 3: Mobile Home Elevations

The elevation of 84 mobile homes would have no impact on biological
resources. All construction and staging would be limited to surface
streets and areas immediately adjacent to the homes. No change or impact
to biological resources would occur and no impact to CCC steelhead or
other federally protected species would result.

## Geology and Soils

The project location is along the border of the Coast Range and Great
Valley geomorphic provinces. The major geologic units in the area are
the Franciscan Assemblage, the Sonoma Volcanics, and the Great Valley
Sequence. The geology in the area is dominated to the west by the
presence of the San Andreas Fault and its accompanying faults, including
the Rodgers Creek, West Napa, Hayward, and Green Valley Faults. The Napa
Valley is a northwest trending valley that generally follows the trend
of the San Andreas Fault system. Typically, Franciscan units are found
on the western side of the valley and Great Valley units are found on
the east. The Sonoma Volcanics are interspersed among these assemblages
and generally overlie them. The Napa Valley bottom is filled with
Quaternary alluvium deposited from the Napa River. The project site is
flat, with a gentle slope towards the Napa River to the east.

The Rancho de Napa and Gateway Mobile Home Parks are not within any
current Alquist-Priolo Special Study Zones, which define the zones that
are considered to contain active faults. The primary faults with the
greatest potential to cause ground shaking at the project site are the
Green Valley and West Napa Faults. However, the Green Valley and West
Napa Faults do not have well established seismic histories for slip
rates or recurrence intervals, and as such the practical risk of ground
shaking from these faults may be lower than from other, more active
nearby faults (e.g., the Hayward and Rodgers Creek Faults). Thus, the
potential for ground shaking resulting from a seismic event exists.

The expansion potential of the soil encountered at the mobile home parks
is considered to be low to moderate.

The site soils are silty-loam. They are moderately erosive, have a
relatively neutral pH, are low in sulfate and chloride content, and have
a low to moderate resistivity. The site soils are considered to be
non-corrosive to mildly corrosive to reinforced concrete and moderately
corrosive to metal pipe.

No potential exists for on-site or off-site landslides, as the site is
flat and a substantial distance from the hills and ridges to the west.

No mineral resources of local, regional, or state significance are
located within Yountville.

### Alternative 1: No Action

Under the No Action Alternative, the Town of Yountville would not
undertake activities to alleviate the flood hazard in the Rancho de Napa
and Gateway Mobile Home Parks; therefore, geology and seismicity would
not be affected.

### Proposed Action Alternative: Construction of a Floodwall

During construction of the proposed floodwall, large and heavy machinery
could compact and displace soils. The Town would implement a Soil
Erosion Control Plan to minimize soil loss, localized transport, and
deposition of erodible materials during construction. This plan would
include the following measures:

-   Construction activities would be conducted between July 15 and
    October 15, when soils, Hopper Creek, and Beard Ditch are dry.

-   Erosion-control measures, including the use of silt fences and silt
    traps to prevent soil loss, would be implemented near Hopper Creek.

No long-term impacts on geology, seismicity, or soils would result from
the existence of a floodwall around the mobile home parks.

The Town of Yountville would use a 10-foot Section of the dirt road in
the vineyards to the south and east of the project site for construction
access. Temporary easements would be obtained from the vineyard owners.
There is a potential for compaction of the soil due to construction
equipment. Therefore, the Town proposes to have these areas ripped after
construction to loosen the soil. This would not result in any permanent
impacts to agricultural property. Therefore, compliance with the
Farmland Protection Policy Act would not be an issue.

### Alternative 3: Mobile Home Elevations

Elevation of individual mobile homes would require minor ground
disturbance in the Rancho de Napa and Gateway Mobile Home Parks for the
foundations. All soils would remain on the site, within the paved areas
of the parks. Therefore, no hazards associated with geology or
seismicity would be created.

No agricultural property would be impacted by this alternative.
Therefore, compliance with the Farmland Protection Policy Act would not
be an issue.

## Water Resources

The project area is located within the Napa River watershed, which
drains an area of approximately 500 square miles. The Town of Yountville
and the mobile home parks are situated on the alluvial plain of the Napa
River. The project site lies within the 100-year floodplain of the Napa
River. Flooding occurs when the discharge exceeds 13,000 cubic feet per
second (cfs). Flooding from the Napa River in the Town of Yountville
typically continues for about one to three days.

The project site is immediately adjacent to two local drainages, Hopper
Creek and Beard Ditch. The Hopper Creek watershed drains an area of
approximately 2.5 square miles. The creek and its tributaries originate
west of the project site on the eastern slopes of the Mayacamas
Mountains. Hopper Creek flows southeast through the Town of Yountville,
eventually emptying into the Napa River south of the Town. Hopper Creek
is typical of California coastal mountain streams, with storm events
producing high flows in the winter. Late spring and early summer flows
typically represent groundwater discharge, and the creek is dry during
summer months. Hopper Creek is the main drainage through the Town of
Yountville and is culverted at road crossings. Due to a culvert upstream
of the mobile home parks, Hopper Creek flood water is diverted east and
therefore does not directly impact the site.

Beard Ditch is a significantly smaller drainage than Hopper Creek. The
watershed includes runoff from residential areas within the Town limits,
a small amount of drainage from the vineyards to the east of the parks,
and during larger storm events overflow waters from Hopper Creek. Beard
Ditch drainage discharges into Hopper Creek south of the Town limits and
ultimately into the Napa River.

The existing interior drainage system for the Rancho de Napa park
consists of surface gutter flow down the streets to the eastern side of
the park, where the flow is picked up in various storm drains ranging in
diameter from 8 inches to 30 inches. These drains outlet to Beard Ditch.
The Gateway park interior drainage system consists of gutter flow that
runs to small (4-inch) storm drains located on the southern side of the
park. These drains outlet to an existing drainage ditch. This drainage
ditch also picks up water from the vineyard located to the south of the
parks. This ditch discharges into Beard Ditch. The current system relies
exclusively on gravity flow and has no pumped flow capabilities.

### Alternative 1: No Action

Under the No Action Alternative, the Town of Yountville would not
undertake activities to alleviate the flood hazard in the Rancho de Napa
and Gateway Mobile Home Parks; therefore, no direct impacts would occur
to water resources. Without flood hazard mitigation, flooding would
continue in its historical pattern. Future flood events would transport
household hazardous wastes, oil from motor vehicle leaks, and other
pollutants from the mobile home parks to Beard Ditch.

### Proposed Action Alternative: Construction of a Floodwall

The existing on-site drainages would be cut off from Beard Ditch if the
proposed floodwall is built. For this reason, the existing drainage
facilities would be replaced with new facilities sized to meet FEMA
interior drainage standards. The new system would use existing street
gutters to gravity-flow water to new storm drain pipelines. The existing
30-inch-diameter line located along San Antonio Drive would be
intersected at a manhole and redirected to the new gravity-flow lines.
The new storm drains would gravity-flow water to a sump located at the
southeastern corner of the Gateway park. From the sump, a portion of the
water would gravity-flow through two 18-inch pipelines through the
floodwall into Beard Ditch. The amount of gravity flow possible is
limited due to the small elevation change and the existence of a shallow
sewer pipeline that must be avoided.

Flow in excess of what can be conveyed through the gravity line would
flow over a weir into a detention basin attached to a pump station. The
pump station would pump flows out of the drainage basin and discharge
water into Beard Ditch. All facilities would be sized to handle the
100-year flow without allowing the depth of the water inside the parks
to exceed 1 foot. The bottom of the drainage basin would be between 75
and 76 feet above mean sea level in elevation to minimize the effects to
groundwater.

Although the proposed floodwall would alter the site drainage pattern,
runoff increases would be minimal and the project includes storm
drainage facilities designed to accommodate projected requirements. No
increase in polluted runoff is anticipated. In addition, any polluted
runoff within the mobile home parks would be contained within the wall
and the mobile home park storm drain system. This containment would
decrease the chance for polluted runoff to enter Hopper Creek or Beard
Ditch. Therefore, the floodwall would not adversely affect drainage
patterns.

The floodwall would also not adversely affect flood flows outside of the
floodwall. When the 100-year flood contours within and without the
floodwall were examined, the water surface changes were found to be
generally less than 0.1 foot around the flood barrier and in no case
more than 0.2 foot (Hydmet, Inc. 2000). These increases in elevation are
considered negligible.

The proposed floodwall would not use groundwater supplies, would not
result in increased waste discharge, and would not contribute to
pollutants that would affect water quality. The proposed detention basin
would not result in the pollution of groundwater because it would only
provide detention for peak runoff during a 100-year rainstorm. The
potential pollutants in such floodwaters would be limited to substances
found in residential areas, such as household hazardous wastes and
petroleum oils and lubricants. The limited water detention and limited
pollutants in floodwaters that could result from the proposed action
would not have negative effects on groundwater resources.

During construction, the Town would implement the following measures to
minimize the potential for sedimentation or fuel spills that could
affect local drainages:

-   All work would be conducted during the dry season (July 15 through
    October 15).

-   All construction materials and fill would be stored and contained in
    a designated area that is located away from channel areas to prevent
    inadvertent transport of materials into the adjacent creek channel.

-   Fueling, cleaning, or maintenance of equipment would be prohibited
    except in designated areas located at least 100 feet from the creek
    or ditch. In addition, the contractor would maintain adequate
    materials at the site for containment and cleanup of any spills.

-   Erosion control measures would be implemented in all disturbed
    areas. After construction is completed and prior to October 15,
    erosion control measures would consist of temporary seeding, the
    placing of straw mulch, or implementation of other measures pursuant
    to a Storm Water Pollution Prevention Plan approved by the Regional
    Water Quality Control Board. Any disturbed soils on a gradient of
    over 30 percent would also have an erosion control blanket
    installed. Permanent revegetation or tree replanting would take
    place in small openings in the erosion control blanket, with
    suitable native species that are compatible with the existing
    vegetation.

The Town of Yountville is not within a coastal zone; therefore, the
construction of a flood barrier would not need to meet the requirements
of the Coastal Zone Management Act.

### Alternative 3: Mobile Home Elevations

Elevation of mobile homes would not affect drainage patterns,
groundwater resources, or the floodplain. Minor ground disturbance for
the foundation spot tie-downs would be within the paved areas of the
mobile home parks. However, the Town of Yountville would take the same
erosion control measures listed in Section 4.3.2 to prevent
sedimentation or pollution of the local drainages.

The Town of Yountville is not within a coastal zone; therefore, the
elevation of mobile homes would not need to meet the requirements of the
Coastal Zone Management Act.

### Executive Order 11988: Floodplain Management

In compliance with Executive Order (EO) 11988, Floodplain Management,
and FEMA's implementing regulations (44 CFR Part 9), the effects of the
No Action Alternative, the Proposed Action, and Alternative 3 have been
reviewed.

The Town of Yountville participates in the National Flood Insurance
Program (NFIP). The Town implements appropriate floodplain management
through enforcement of the Town of Yountville Flood Ordinance. According
to FEMA's Flood Insurance Rate Map (FIRM), portions of the Rancho de
Napa and Gateway Mobile Home Parks are in the 100-year floodplain
(Figure 3). The most recent floods in the mobile home parks occurred in
1995 and 1997.

#### Alternative 1: No Action

Under the No Action Alternative, no flood hazard mitigation would be
provided around the Rancho de Napa and Gateway Mobile Home Parks, and
portions of these parks would remain in the 100-year floodplain. The
FIRM for the Town of Yountville would remain unchanged.

#### Proposed Action Alternative: Construction of a Floodwall

The NEPA compliance process requires federal agencies to consider direct
and indirect impacts to floodplains that may result from federally
funded actions. EO 11988 requires federal agencies to take action to
minimize occupancy and modification of floodplains. EO 11988 also
requires that federal agencies proposing to site a project in a 100-year
floodplain must consider alternatives to avoid adverse effects and
incompatible development in the floodplain. If no practicable
alternatives exist, the project must be designed to minimize potential
harm to or within the floodplain and a notice must be publicly
circulated explaining the project and the reasons for siting the project
in the floodplain. Furthermore, construction must be consistent with the
standards, criteria, and intent of the NFIP and its implementing
regulations (44 CFR Parts 59 through 77).

The purpose of the proposed floodwall is to prevent future flooding of
Rancho de Napa and Gateway Mobile Home Parks. In a letter dated August
27, 2002, the Town of Yountville requested (HDR 2002 (b)) and received a
Conditional Letter of Map Revision (CLOMR) in which FEMA found that the
proposed floodwall project meets the minimum floodplain management
criteria for NFIP and that the proposed project would warrant a revision
to the FIRM (Appendix C). Upon completion of the project, the Town of
Yountville would submit detailed information regarding the as-built
plans for the project and descriptions of the as-built conditions of the
base flood elevation so that FEMA could make a final determination on
revising the effective FIRM. The Town of Yountville would also revise
its zoning ordinance to reflect changes in the extent of the floodplain
and floodway, if applicable.

In compliance with EO 11988 and 44 CFR Part 9, a notice would be
publicly circulated explaining the project and reasons for the project
being sited in the floodplain.

#### Alternative 3: Mobile Home Elevations

The elevation of mobile homes in the Rancho de Napa and Gateway Mobile
Home Parks would not result in any change to the existing flood hazard,
the 100-year floodplain, or the base flood elevation, and no revisions
would be made to the FIRM.

### Executive Order 11990: Protection of Wetlands

In accordance with EO 11990, Protection of Wetlands, and FEMA's
implementing regulations (44 CFR Part 9), the effects of the Proposed
Action on wetlands have been considered.

On October 29, 2002, a reconnaissance-level field survey was conducted.
The project site is bordered on the east by Beard Ditch and the west by
Hopper Creek. These are both channelized and maintained and are dry in
summer months. No other wetlands were identified in the project area.

#### Alternative 1: No Action 

The No Action Alternative would not affect or modify Hopper Creek or
Beard Ditch and would have no impact on wetlands or waters.

#### Proposed Action Alternative: Construction of a Floodwall

The proposed floodwall would not result in permanent impacts to Hopper
Creek or Beard Ditch. The proposed floodwall would not result in fill in
either the creek or the ditch. During construction of the western
floodwall, equipment would need to access the site from Hopper Creek in
two locations, at the south Section and the northwest Section of the
creek. The equipment would be removed from the creek upon completion of
that portion of the floodwall and would not leave any permanent fill or
impact to Hopper Creek. All construction would be completed when the
creek is dry and mitigation measures described in Sections 4.1.4 and
4.2.2 would be implemented to prevent erosion or sedimentation in the
creek during construction. The Town of Yountville consulted with the
U.S. Army Corps of Engineers (USACE) regarding the potential effects of
the proposed floodwall construction on Hopper Creek and Beard Ditch
(USACE 2002). USACE determined that the proposed project would not
result in permanent impacts to Hopper Creek and that no Section 404
permit would be required (Knudsen 2003; Appendix D).

#### Alternative 3: Mobile Home Elevations

The mobile homes proposed for elevation are within a paved area that
does not support any wetland habitat or waters. Elevation of mobile
homes in the Rancho de Napa and Gateway Mobile Home Parks would cause no
ground disturbance and would not affect any wetlands or waters.

## Cultural Resources

In addition to review under NEPA, consideration of impacts to cultural
resources is mandated under Section 106 of the National Historic
Preservation Act (NHPA) and implemented by 36 CFR Part 800. Requirements
include identifying significant historic properties and districts that
may be affected by a federal undertaking and mitigating adverse effects
to those resources.

URS, on behalf of FEMA, conducted a literature review through the
Northwest Information Center (NWIC) of the California Historical
Resources Information System on October 10, 2002, to determine the
number and extent of previously recorded cultural resource and
previously conducted cultural resource studies within half a mile of the
project area. According to the data provided by the NWIC, four
archaeological sites are within half a mile of the project area, and
numerous built environment features in the Yountville area are included
in the Directory of Properties in the Historic Property Data File for
Napa County.

### Alternative 1: No Action

Under the No Action Alternative, no flood hazard mitigation would be
completed by the Town of Yountville to protect the Rancho de Napa and
Gateway Mobile Home Parks. Therefore, there would be no requirement for
compliance with Section 106 of NHPA. However, the potential for future
flood events would remain. During such events rapid currents and
high-water conditions in the Napa River and Hopper Creek could cause
erosion of creek banks near the project site, where archaeological sites
are potentially present.

### Proposed Action Alternative: Construction of a Floodwall

The Native American Heritage Commission (NAHC) was contacted by FEMA to
request a review of its Sacred Lands Files and to obtain a list of
individuals or groups that it believes should be contacted regarding
information or concerns related to the project. The NAHC responded on
October 8, 2002. The review of its Sacred Lands Files was negative. FEMA
consulted with the individuals and groups identified by the NAHC; one of
these contacts informed FEMA of a known ethnographic village site north
of Yountville and many unrecorded archaeological sites in the vicinity
of the project area.

URS, on behalf of FEMA, conducted an archaeological field survey in the
area of potential effect (APE). A prehistoric archaeological resource
and two built environment features were identified within the project
area. The surface manifestations of the prehistoric archaeological
resource consisted of a sparse scatter of obsidian flakes and flake
tools in two loci, indicating possible existence of a subsurface
deposit. URS, on behalf of FEMA, conducted a testing program to
determine the extent of the archaeological site (Yountville #1 temporary
designation) and its potential eligibility for inclusion on the National
Register of Historic Places (NRHP). The uniformity of materials present
and the geomorphological setting suggested that the materials present
represent secondary deposition. The testing data suggested the site does
not retain those qualities necessary for listing on the NRHP. The
results of these efforts are documented in *Archaeological Survey and
Testing Report: Yountville Flood Barrier Project* (FEMA 2003).

The two historic structure complexes present in the APE were inventoried
by URS and evaluated for their eligibility for inclusion on the NRHP.
Neither property retains integrity to the period of significance because
of extensive alterations, and both properties lack integrity of setting.
Both properties were also determined not to be eligible for listing on
the NRHP. Based on the evaluations of the prehistoric and historic
resources in the APE, FEMA determined that no effect to historic
properties would be expected from the Proposed Action Alternative.

FEMA initiated consultation with the State Historic Preservation Officer
(SHPO) for the Proposed Action on March 20, 2003, for review and
concurrence of FEMA's findings. FEMA stipulated that the Town would
employ a qualified archaeological monitor to be present during
ground-disturbing activities in the event that unanticipated discoveries
are made during project construction. In the event of an unanticipated
discovery, the Town of Yountville representative would stop the work and
notify FEMA immediately. FEMA would then consult with the SHPO in
accordance with Section VII of the Programmatic Agreement for Disaster
(FEMA-1044-DR-CA). Should human remains be encountered, work in the
vicinity would halt and the Town of Yountville would also notify the
County Coroner immediately. If the remains were determined to be Native
American, the coroner would contact the NAHC. Based on the information
provided by FEMA, SHPO concurred on March 27, 2003, with FEMA's
determination that no properties eligible for the NRHP would be affected
by the Proposed Action Alternative (Appendix E). Thus, project
activities would be in compliance with Section 106 of the NHPA.

### Alternative 3: Mobile Home Elevations

The impacts associated with Alternative 3 would be similar to those
associated with the No Action Alternative because ground-disturbing
activities would be minimal for foundation spot tie-downs and would
occur within the disturbed and paved areas of the mobile home parks.
This alternative is not expected to result in adverse effects on any
NRHP-eligible or listed historic properties because the properties at
6424 Champagne Street and 6464 Washington Street are not eligible for
the NRHP (SHPO 2003). The foundation work would be similar to the
activities completed for any new mobile home within the parks.

## Socioeconomics and safety

The Town of Yountville is a small community that incorporated in 1965.
It is located approximately 9 miles north of the City of Napa, in Napa
County. It has a population of approximately 3,000 according to the 2000
U.S. Census data. This population represents about 2 percent of the
total Napa County population. The median age in the Town of Yountville
is approximately 60 years, the median household income is \$46,944, and
the per capita income is \$30,721 in 2000. Approximately 7.3 percent of
the Town's population was in poverty in 2000. The median value of a
single-family home was \$318,800 in 2000 (U.S. Census Bureau 2000).

The Rancho de Napa and Gateway Mobile Home Parks contain 317 mobile home
units and house over 400 residents. These parks account for
approximately 30 percent of Yountville's housing stock and 20 percent of
its residents, excluding the Veteran's Home (approximately 1,000
residents). The mobile home parks have been in place over 30 years and
provide a major portion of the affordable housing supply for low- and
moderate-income senior households.

Based on damages experienced in the 1995 and 1997 flood events, the Town
of Yountville estimated the associated costs per flood event to be \$6
million in addition to over \$2 million in costs from impacts to the
local economy, emergency rescue services, and other expenses.

### Alternative 1: No Action

The No Action Alternative would have no growth-inducing effects and
would not facilitate development in areas that could not otherwise be
developed.

Without flood protection in the mobile home parks, residents could be
temporarily dislocated during future flood events. This impact would be
temporary and would not require the construction of replacement housing.
The No Action Alternative would not affect demographics, housing, or the
local economy in the long term.

The owners of the Rancho de Napa and Gateway Mobile Home Parks and the
mobile home residents would continue to incur financial losses from
future floods that damage property. In addition, the Town of Yountville
would continue to expend money for actions to respond to and recover
from future flooding. It is projected that eight flood events of varying
magnitude could occur over the next 20 years (Town of Yountville 2002).

### Proposed Action Alternative: Construction of a Floodwall

Construction of a floodwall would have no growth-inducing effects and
would not facilitate development in areas that could not otherwise be
developed. Construction of the floodwall is not expected to influence
demographics, housing, or the local economy in the long term. The
property values of the mobile home parks can be expected to increase as
a result of the project.

The floodwall would require the displacement of one mobile home unit to
provide emergency access. The mobile home at Space #120 in the Rancho de
Napa park was purchased by the Town of Yountville, Rancho de Napa Mobile
Home Park, and a California General Partnership on April 30, 2002. The
removal of this mobile home would provide access from Sherry Circle to
San Antonio between the Rancho de Napa and Gateway parks.

The construction of a floodwall around the Rancho de Napa and Gateway
Mobile Home Parks would provide permanent flood protection for all 317
mobile homes and would reduce the recurring costs of flood damage. The
removal of the mobile home parks from the floodplain, and therefore the
FEMA FIRM maps, would substantially reduce the cost of flood insurance
to residents. In addition, the proposed action would not result in any
costs being borne by the mobile home owners.

### Alternative 3: Mobile Home Elevations

Elevation of mobile homes would have no growth-inducing effects and
would not facilitate development in areas that could not otherwise be
developed.

This alternative would require the temporary relocation of residents
during elevation activities. This impact would be temporary and would
not require the construction of replacement housing. Elevation of mobile
homes is not expected to influence demographics, housing, or the local
economy in the long term.

The costs per mobile home elevation were estimated at \$5,000 and
\$7,500. However, the majority of newer mobile homes are double and
triple wide, with a resulting cost estimate for elevation of \$15,000
per home. Temporary relocation costs and project management costs were
roughly estimated at \$2,500 to \$5,000 per home, or a total of
\$500,000.

In addition to the cost of the elevation work, the mobile home park
owners, the residents, and the Town of Yountville would continue to
incur costs due to flooding events. Elevation of ancillary structures
and/or elevation of other mobile homes in the project area would have to
be paid for by the residents.

### Executive Order 12699: Seismic Safety

In compliance with FEMA policy implementing EO 12699, Seismic Safety of
Federal and Federally Assisted or Regulated New Building Construction,
the development, design, and building standard criteria related to
earthquake hazard reduction have been reviewed.

#### Alternative 1: No Action

No construction would occur under the No Action Alternative. Therefore,
this alternative would not result in increased risk due to seismic
events.

#### Proposed Action Alternative: Construction of a Floodwall

No human-occupied buildings would be constructed as part of the proposed
action. Therefore, the proposed action would not result in increased
risk from seismic events, and the action would comply with EO 12699.

#### Alternative 3: Mobile Home Elevations

The elevation of mobile homes could result in increased seismic risks to
residents. However, the foundation work proposed in this alternative was
reviewed and found to meet all building codes. No increased seismic
risks would result from elevating the existing structures; thus, this
alternative would comply with EO 12699.

###  Executive Order 12898: Environmental Justice

EO 12898 requires federal agencies to make achieving environmental
justice part of their missions by identifying and addressing
disproportionately high and adverse human heath or environmental effects
on minority and low-income populations resulting from federal programs,
policies, and activities. EO 12898 also tasks federal agencies with
ensuring that public notifications regarding environmental issues are
concise, understandable, and readily accessible.

Socioeconomic and demographic data for Napa County and the Town of
Yountville were studied to determine if a disproportionate number of
minority or low-income persons have the potential to be affected by the
project alternatives.

A comparison of relevant environmental justice indicators for the Town
of Yountville and Napa County is shown in Table 3.

  -----------------------------------------------------------------------
  **Table 3\                                             
  Comparison of Environmental Justice                    
  Indicators**                                           
  ------------------------------------- ---------------- ----------------
  **Indicator**                         **Town of        **Napa County**
                                        Yountville**     

  White                                 92%              80%

  Nonwhite                              8%               10%

  Persons over age 25 with a high       23%              80%
  school education                                       

  Homeownership rate                    72%              65%

  Persons with income below poverty     7%               8%
  level                                                  
  -----------------------------------------------------------------------

#### Alternative 1: No Action

The No Action Alternative would not result in any flood hazard
protection measures and therefore would not result in actions that would
disproportionately affect minority or low-income populations. The mobile
home parks, which provide a major portion of the affordable housing and
are home to many elderly citizens within the Town of Yountville, would
continue to be impacted during flood events.

#### Proposed Action Alternative: Construction of a Floodwall

The Town of Yountville does not have a disproportionate number of
minority persons, low-income persons, or persons with few years of
formal education relative to Napa County. The Rancho de Napa and Gateway
Mobile Home Parks provide approximately one-third of the Town's overall
housing stock and a significant portion of the Town's affordable
housing. Construction of a floodwall would benefit the residents of
these mobile home parks by protecting their homes from future flooding.
Therefore, implementation of the Proposed Action complies with EO 12898.

#### Alternative 3: Mobile Home Elevations

For the same reasons discussed in the Proposed Action Alternative, the
elevation of mobile homes complies with EO 12898.

## Land Use and zoning

The Rancho de Napa and Gateway Mobile Home Parks are private communities
within Yountville with private streets. Each park is separately owned;
land is rented out to the mobile home residents. The mobile home parks
are designated in the General Plan and zoned Mobile Home Park
Residential (MHP). The adjacent Atwood property is planned and zoned
Single Family Residential (RS). The floodwall would adjoin Hopper Creek
to the west. Hopper Creek is protected by the Creekside Overlay District
(c). Residential and commercial uses are located west of the creek. The
residential area to the north, the Vineyards Subdivision, is planned and
zoned Master Planned Residential (MPR) and Parks and Playfields (P). The
area to the south, which contains a Catholic Church, vineyards, and the
town wastewater pumping station, is planned and zoned Mixed Residential
(RM) and Public Facilities (PF). Vineyards within unincorporated Napa
County are located across Beard Ditch to the east of the mobile home
parks. There are no agricultural resources within the project site.

The key planning and policy documents of the Town of Yountville that
address potential environmental effects of a project are the General
Plan, Zoning Ordinance, and Design Ordinance.

-   The General Plan requires that the existing watercourse of Hopper
    Creek and the native vegetation along its frontage be maintained
    (Open Space Policy 5.1, Chapter II, Section C.3.e). The General Plan
    also requires that during construction native vegetation adjacent to
    Hopper Creek and Beard Ditch be protected and preserved (Land Use
    Policy 7.6, Chapter IV, Section A.9.e).

-   The Creekside Overlay District (Section 5.3), of the Yountville
    Zoning Ordinance provides regulations for development along Hopper
    Creek. The District establishes a setback, restricts structures
    within the setback, and protects against excavation and vegetation
    removal. The conditions of this District may only be waived by the
    Town Council if it is determined that the proposed work would not
    increase any danger of flooding to any part of the Town of
    Yountville and that the proposed work would assist in achieving the
    goals stated in Section 5.3.a. The goals of Section 5.3.a include:

```{=html}
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```
-   To protect private and public lands from flood damage caused by
    deposits of debris and other materials collected by flood waters;

-   To protect the riparian cover and wildlife habitat extending along
    the creek by preventing erosion of the creek's banks and siltation
    of the creek's waters;

-   To preserve the existing natural and visual character of Hopper
    Creek and its environs; and

-   To promote the broader social, economic and environmental well being
    of the town.

```{=html}
<!-- -->
```
-   The Design Ordinance limits the height of walls to 6 feet in general
    and 3 feet within a front yard setback.

### Alternative 1: No Action

Under the No Action Alternative, no structural improvements would be
implemented to protect the mobile home parks from flooding. There would
be no change or impact to the existing zoning.

### Proposed Action Alternative: Construction of a Floodwall

The proposed floodwall would be consistent with applicable policies of
the General Plan. However, the Town Council would need to waive the
Creekside Overlay District as part of project approval. The floodwall
design would meet the goals of Section 5.3(a) of the Yountville Zoning
Ordinance. The Town would need to obtain the waiver of the District
before the initiation of the work.

Neither the General Plan nor the Zoning Ordinance specifically restricts
floodwall height. However, the Design Ordinance limits the height of
walls to 6 feet in general and 3 feet within a front yard setback. The
Town Council approval of a variance is needed for floodwall sections
over 6 feet. Yountville would obtain a variance from this ordinance
(Section 7.5(b)) for the sections of the wall over 6 feet before
initiation of work. A variance would be feasible because the floodwall
design would be consistent with the General Plan and would protect
public welfare consistent with the intent of the Town's Zoning
Ordinance.

The floodwall is proposed to be built by the Town on privately owned
property, and access and staging would occur on private property. Before
implementing the Proposed Action, the Town would obtain legal authority
(such as easements or rights-of-entry) to construct the floodwall,
including areas required for site access.

### Alternative 3: Mobile Home Elevations

The elevation of the mobile homes would not require or result in changes
in land use or zoning.

Access and staging for elevating mobile homes would occur on private
property. Before implementing the Proposed Action, the Town would have
to obtain legal authority (such as easements or rights-of-entry) for
site access and staging. Because the mobile homes are privately owned,
the mobile home owners would have to agree to elevate their homes before
the Town could include them in this alternative.

## Public Services and Utilities

The Rancho de Napa and Gateway Mobile Home Parks receive fire protection
from the Town of Yountville CDF and police protection from the Town's
Sheriff's Department. Storm and sewer services are provided for the
parks as well as telephone, gas, electricity, and cable utilities. The
roads in the mobile home parks are private.

### Alternative 1: No Action

This alternative would not affect normal public services or utilities.
The lack of flood protection for the mobile home parks would result in
the continued need for flood response during flooding events.

### Proposed Action Alternative: Construction of a Floodwall

Removable entrance closures at Mission Street and Champagne Drive are
proposed as part of the floodwall alternative. The flashboard structures
would complete the flood barrier during very high floods. When in place,
the structures would block all vehicular access, including police and
fire protection. However, the use of these flashboard closures would
only be necessary during 100-year floods and would not have a
substantial effect on the overall provision of police and fire services.
In consultation with the local police, fire, and other emergency
response services, the Town would develop procedures to notify all
mobile home park residents of the need to evacuate the mobile home parks
and special contingencies for emergency access when the flashboard
structures are in place. No other public services or utilities would be
affected by the proposed project.

### Alternative 3: Mobile Home Elevations

The elevation of mobile homes would have no effect on public services or
utilities. The existing utilities associated with homes in Rancho de
Napa Mobile Home Park would not be elevated as part of this action.
Therefore, the utilities in these parks would still be subject to
flooding hazards. In addition, the potential demands on public services
and associated costs due to future flood events would remain.

## Air Quality

Air quality within the Napa Valley is considered to be relatively good.
State standards for ozone and particulate matter with an aerodynamic
diameter of 10 microns or less (PM-10) have been exceeded in Napa Valley
in recent years. Ozone violations typically stem from motor vehicle
emissions, and PM-10 issues tend to arise during periods when dust is
generated. Guidelines for evaluation of air quality impacts issued by
the Bay Area Air Quality Management District (BAAQMD) consider emission
increases to be significant if they exceed 150 pounds per day for
regional pollutants. Air quality impacts are considered critical when
they occur or affect sensitive receptors, which include, among others,
the elderly, the acutely ill, and the chronically ill.

### Alternative 1: No Action

The No Action Alternative would have no impact on air quality.

### Proposed Action Alternative: Construction of a Floodwall

Temporary construction activities would generate particulate matter and
fugitive dust from equipment, vehicles, and wind erosion. Elevated
levels of PM-10 near the construction site could result. However, the
concentrations are not expected to reach levels that would violate the
air quality plan or air quality standards for the air basin.

The floodwall along the northern and western boarders of the mobile home
parks would be adjacent to residential neighborhoods, which are
considered sensitive receptors. The generation of PM-10 and fugitive
dust in proximity to existing residential neighborhoods represents a
potentially adverse impact. Therefore, the Town would implement the
following mitigation measures to ensure that construction activities
occur in a manner that minimizes the generation of construction-related
air quality impacts:

-   A dust suppression plan would be prepared and submitted to the Town
    Engineer for review and approval. One measure to be included in the
    plan would be the watering of disturbed areas of the project site a
    minimum of two times daily. On particularly windy days the project
    site would be watered more frequently. Trucks hauling debris,
    construction materials, or earth would be covered. Streets affected
    by construction activities would be swept or washed at least once
    each day. If necessary, all construction equipment would be
    thoroughly cleaned and washed before exiting the site.

-   All earth surfaces exposed by construction would be seeded, treated
    with soil binders, or paved as soon as possible.

    A pair of diesel engines and a backup diesel generator would be used
    to power the pump station. To reduce potential operational air
    quality impacts, these engines would have elevated exhaust stacks to
    disperse exhaust fumes.

### Alternative 3: Mobile Home Elevations

The elevation of mobile homes would result in minor ground disturbance
for the spot tie-ins for the foundations. Construction and operational
air quality impacts would be negligible and construction equipment would
result in temporary and minimal emissions. As with the proposed action,
dust control measures would be taken as necessary. This alternative
would not result in any new facilities that would have operational air
quality impacts.

## Noise

The Rancho de Napa and Gateway Mobile Home Parks are located east of
State Route 29. A noise measurement was made near the Mission Street
entrance to the Rancho de Napa Mobile Home Park on Wednesday, October
11, 2000. Vehicular traffic on SR 29 and local traffic dominated the
noise measurement at the monitoring site. Trucks on SR 29 generated
maximum noise levels ranging from 55 to 64 decibels A-weighted (dBA).
Automobile traffic typically generated noise levels ranging from 48 to
54 dBA. The average noise level (L~eq~) during the mid-morning
measurement was 54 dBA. The day/night average noise level at the western
boundary of the mobile home parks was estimated to be approximately 55
dBA, and the noise levels lowered as one moved east from the highway.

The Town of Yountville has adopted objectives and policies in the Noise
Element of its General Plan. Policy 1.3 requires the review of new
development applications for potential noise problems and, if needed,
provisions for adequate mitigation measures. The General Plan does not
contain quantitative guidelines or limits.

### Alternative 1: No Action

The No Action Alternative would have no noise impacts.

### Proposed Action Alternative: Construction of a Floodwall

Construction of the floodwall would include ground excavation and
drilling to install the foundation and support structure. However, the
amount of ground vibration caused by these construction operations is
considered to be low to moderate intensity and of limited duration. It
is estimated that construction of the foundation would take
approximately 3.5 months. The noise associated with this activity is
primarily from the drill rig and the concrete truck and concrete pump.
This noise is similar to that generated by street work. Because the
activity is linear, it would only affect the mobile homes adjacent to
the work at any given time. Noise levels from this type of equipment are
typically in the range of approximately 80 dBA at a distance of 50 feet.
Once the foundation is complete, the construction of the floodwall would
proceed. The manual setting of the masonry blocks is not expected to
cause a substantial increase in noise.

Submersible pumps and a diesel engine generator are proposed to be
located in the southeast corner of the park. The submersible pumps are
not expected to generate substantial audible noise at mobile homes
within the park. The generator would only run during power failures and
would be fitted with a "critical grade" muffler. The predicted noise
level is 81 dBA at a distance of 23 feet (Schaff & Wheeler 2000). The
diesel engine generator, when operating during an emergency, would be
clearly audible at nearby mobile homes and could cause sleep disturbance
and activity interference during its operation. However, because it
would only operate during emergencies and occasional testing, it would
not cause a substantial change in the noise environment either on a
permanent or intermittent basis. The critical grade muffler, which is
proposed as part of the project, is an appropriate and sufficient noise
control treatment for the generator.

The following noise minimization measures would be implemented by the
Town to further reduce construction noise impacts:

-   **Construction Schedule**. Limit noise-generating construction
    activities, including truck traffic to and from the site, to daytime
    hours (7:30 a.m. to 5:00 p.m.) during weekdays. Prohibit
    noise-generating construction activities on weekends and holidays,
    but allow construction to proceed on Saturdays (9:00 a.m. to 5:00
    p.m.) provided that there is prior notice to neighborhood residents.

-   **Construction Equipment**. Properly muffle and maintain all
    construction equipment powered by internal combustion engines.

-   **Idling Prohibitions**. Prohibit unnecessary idling of internal
    combustion engines near noise-sensitive areas.

-   **Equipment Location**. Locate all stationary noise-generating
    construction equipment, such as air compressors and portable power
    generators, as far as practical from existing noise-sensitive land
    uses.

-   **Quiet Equipment Selection**. Select quiet construction equipment
    and techniques whenever possible.

-   **Notification**. Notify mobile home park residents and adjacent
    residents of the construction schedule in writing.

-   **Control Construction Workers' Radios**. Control noise from
    construction workers' radios to the point where this noise is not
    intrusive at residences near the construction area.

-   **Disturbance Coordinator**. Select and post the name and phone
    number of a disturbance coordinator at the project site. This person
    (e.g., the general contractor) shall be responsible for dealing with
    noise-related complaints from the neighbors. It shall be this
    person's responsibility to implement remedies for the complaints
    that would likely result from violations of the prohibitions
    outlined above.

### Alternative 3: Mobile Home Elevations

The elevation of mobile homes would result in temporary construction
noise impacts to the surrounding neighborhoods. To minimize the impacts
of construction noise, the noise minimization measures listed under the
Proposed Action Alternative would also be implemented under Alternative
3.

## Transportation

Vehicular access to the Rancho de Napa Mobile Home Park is from
Washington Street via Mission Street. Vehicular access to the Gateway
Mobile Home Park is also from Washington Street but via Champagne Drive.
A pedestrian and bicycle path also provides access on the east side of
Hopper Creek along the western boundary of the project site.

### Alternative 1: No Action

Under the No Action Alternative, no flood hazard protection would be
constructed for the mobile home parks and no changes to roadways,
circulation, or parking would occur. Future flooding would occur and
could lead to temporary road closures and detours in the mobile home
parks.

### Proposed Action Alternative: Construction of a Floodwall

Access to the site during construction of a floodwall would be provided
via Washington Street and Mission Street or Champagne Drive as well as
Land Lane at the southeastern corner of the mobile home parks. During
construction, no road closures or detours would be required.
Construction staging areas would be established at the northeastern
corner of Rancho de Napa park within a paved motor home parking lot and
at the southeastern corner of the project site, near the proposed
drainage basin and pump station. Access to the northwest corner of the
floodwall and Hopper Creek may occur via Oak Circle to just east of
Hopper Creek, but Oak Circle east of Heather Street will not be used for
construction access. Access to the northern floodwall would be along San
Carlos Street within the Rancho de Napa Mobile Home Park. Workers would
park at the proposed construction staging areas and would access the
floodwall from the yards of the mobile homes. In addition, some
vehicular access is available between the existing Rancho de Napa fence
line and the fence of the adjacent properties. The south and east
floodwalls would be accessed directly by paved street or parking in the
mobile home parks or along the vineyard roadway outside of the mobile
home parks to the south/southeast.

The flashboard closures that would be installed at Mission Street and
Champagne Drive would be used to complete the flood barrier around the
Rancho de Napa and Gateway Mobile Home Parks during very high floods.
Once these closure structures are in place, there would be no provision
for vehicular or pedestrian access to either of the mobile home parks.
Because the flashboards would only be in place during high flood events,
this would not adversely affect regular traffic circulation.

The Hopper Creek pedestrian and bicycle path, which is located between
the proposed floodwall and Hopper Creek, would be temporarily disrupted
during construction. The path would not be permanently altered, would be
repaired as necessary after the floodwall construction is complete, and
would remain in its existing alignment.

### Alternative 3: Mobile Home Elevations

The elevation of homes would not require road closures or detours.
Temporary construction staging would be located adjacent to each mobile
home and would not block the roadways within the mobile home parks. This
action would result in no long-term changes to roadways, circulation, or
parking. Future flooding would occur and could lead to temporary road
closures and detours in the mobile home parks.

## Visual resources

The Rancho de Napa and Gateway Mobile Home Parks are located at the
southern end of Yountville, east of SR 29, in Napa Valley. A
six-foot-tall wooden fence and a wire/slatted fence currently surround
the two parks. Landscaping abuts portions of the fence and in some
places completely screens the fence. In other areas of the park no
landscaping exists along the fence line. Vineyards abut the eastern and
southern property lines. The mobile homes that are located along the
eastern and southern borders of the parks have views of the surrounding
vineyards and hills over the existing fence. Views of the hills to the
east and the west are also available from Champagne Drive.

The Town of Yountville General Plan provides policies protecting view
corridors from the town towards the vineyards and mountains: "Protect
view corridors from regulating signs, utilities, accessory facilities,
buildings of similar structures as established in Chapter I of the
Design Ordinance" (Open Space Policy 2.3, Town of Yountville General
Plan, 1994). The Town's Predesign Report (HDR 2002 (a)) does not
specifically identify view corridors extending from the mobile home
park. Nonetheless, the views of the mountains and vineyards are
prominent for some of the units located along the outer edges of the
mobile home parks.

### Alternative 1: No Action

Under the No Action Alternative, no change to the views in and around
the Rancho de Napa and Gateway Mobile Home Parks would result.

### Proposed Action Alternative: Construction of a Floodwall

The floodwall would not substantially alter the visual character of the
site because it would replace existing fencing and would generally be
the same height as the existing fencing. Where the floodwall would be
higher than the existing fence, it would impede views of the surrounding
landscape from the mobile home parks.

Along the southern boundary of the mobile home parks, the view of the
floodwall from inside the Gateway Mobile Home Park would be softened by
constructing a raised curb and planter area between the edge of pavement
and the wall. Although topsoil would be added, irrigation and planting
would be the responsibility of the owners.

### Alternative 3: Mobile Home Elevations

The elevation of homes would not substantially alter the visual
character or impede views to and from the project area. However, the
elevated mobile homes along the northern property line of Rancho de Napa
Mobile Home Park could alter the views of adjoining homes.

## Cumulative Impacts

There are no other proposed or ongoing construction projects in the Town
of Yountville. Therefore, the flood hazard mitigation project at the
Rancho de Napa and Gateway Mobile Home Parks would result in no
cumulative impacts.

# Section 5 5 Consultation and Permit Requirements

**Section 7 Consultation, USFWS**

Consultation is complete, see Appendix A. No permit is required.

**Section 7 Consultation, NMFS**

Consultation is complete, see Appendix B. No permit required.

**Conditional Letter of Map Revision (CLOMR)**

Consultation with FEMA. See Appendix C.

**Section 404 of the Clean Water Act, USACE**

Consultation is complete, See Appendix D. No permit required.

**Section 106 of the State Historic Preservation Act, SHPO**

Consultation is complete, See Appendix E. No further permit required.

# Section 6 6 References

Association of Bay Area Governments. 2000. Bay Area Census. Census 2000
Data. Website: <http://www.bayareacensus.ca.gov/cities/Yountville.htm>

Busby, P.J., T.C. Wainwright, G.J. Bryant., L. Lierheimer, R.S. Waples,
F.W. Waknitz, and I.V. Lagomarsino. 1996. Status review of west coast
steelhead from Washington, Idaho, Oregon, and California. United States
Department of Commerce, National Oceanic and Atmospheric Administration
Technical Memorandum NMFS-NWFSC-27. 261 pages.

CNDDB. 2002. California Natural Diversity Data Base. Rarefind 2
database. 1997. California Department of Fish and Game, Sacramento,
California. October 2002 version.

Goals Project. 1999. Baylands Ecosystem Habitat Goals. A report of
habitat recommendations prepared by the San Francisco Bay Area Wetlands
Ecosystem Goals Project. U.S. Environmental Protection Agency, San
Francisco, Calif./SF Bay Regional Water Quality Control Board, Oakland,
Calif.

FEMA 2002. Conditional Letter of Map Revision Letter. Community: Town of
Yountville, CA. Community No. 060209. August 27, 2002.

FEMA 2003. *Archaeological Survey and Testing Report: Yountville Flood
Barrier Project.* Prepared by URS Group, Inc.

HDR 2002 (a). Town of Yountville Flood Barrier Project Draft Predesign
Report. Prepared for the Town of Yountville. March 2002.

HDR 2002(b). Conditional Letter of Map (CLOMR) Application for
Yountville Flood Barrier Project. Town of Yountville, Napa County,
California. Prepared for the Town of Yountville. July 2002.

Hydmet, Inc. 2000.

Knudsen, John 2003. Site review with the Town of Yountville. Verbal
confirmation that no Section 404 Permit is necessary for proposed
floodwall project. January 28, 2003.

NMFS 2003. Consultation Letter #151422SWR03SR8547:ME. Regarding FEMA
funding of a floodwall. February 12, 2003.

Moyle, P.B. 1976. Inland Fishes of California. University of California
Press. Berkeley, California. 405 pages.

Myers, J.M., R.G. Kope, G.J. Bryant, D. Teel, L.J. Lierheimer, T.C.
Wainwright, W.S. Grand, F.W. Waknitz, K. Neely, S.T. Lindley, and R.S.
Waples. 1998. Status review of chinook salmon from Washington, Idaho,
Oregon, and California. United States Department of Commerce, NOAA
Technical Memorandum NMFS-NWFSC-35, 443 p.

Schaff and Wheeler. 2000. \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
October 11.

SHPO 2003. Town of Yountville Food Barrier Project, Napa County FEMA
HMPG #1044-0005. Consultation. March 27, 2003.

Town of Yountville 2002. Town of Yountville Flood Barrier Project
FEMA-DR-1044-CA, OES #154A, FEMA #005, FIPS #055-89630 Description of
Alternatives. Prepared for Governor's Office of Emergency Services.

U.S. Census Bureau 2000. Website:
http://quickfacts.census.gov/qfd/states/06/06055.html

USACE 2002. Town of Yountville Flood Barrier Project, FEMA-DR-1044-CA,
OES #154A, FEMA #005

USFWS 2002. Species List

USFWS 2003. Request for "Tier 1" Concurrence with a Not Likely to
Adversely Affect Determination for the Proposed Yountville Flood Barrier
Project, Yountville, Napa County, l California (HMGP Project No.
1044-0005). December 31. 2002.

# Section 7 7 List of Preparers

Federal Emergency Management Agency, Region IX

-   Sandro Amaglio, Regional Environmental Officer

URS Corporation

-   Christopher Barkley, Project Civil Engineer

-   Suzanne Eastridge, Senior Staff Scientist

-   Morgan Griffin, Senior Consultant

-   Brian Hatoff, Senior Project Archaeologist

-   Sally Morgan, Project Archaeologist

-   Rachael Ehgerman, Archaeologist

-   Rosemary Laird, Biologist

-   Fumiko Goss, Graphics Specialist

-   Iris Eschen, Senior Word Processor

-   Deborah Fournier, Word Processor

-   Jay Plano, Technical Editor

Town of Yountville

-   Paul Klassen, Civil Engineer

-   Nancy Weiss, Consultant

Figures

Appendix A\
U.S. Fish and Wildlife Service Tier 1 Concurrence Letter

Appendix B\
National Marine Fisheries Service Letter

Appendix C\
Federal Emergency Management Agency CLOMR Letter

Appendix D\
U.S. Army Corps of Engineers Letter

Appendix E\
State Historic Preservation Officer Letter