Agenda packet — Rancho Mirage City Council, July 20, 2023 (part 2 of 6)

b) Does the project have impacts that are
individually limited, but cumulatively
considerable? ("Cumulatively considerable"
means that the incremental effects of a project
are considerable when viewed in connection
with the effects of past projects, the effects of
other current projects, and the effects of
probable future projects)?

c) Does the project have environmental
effects, which will cause substantial adverse
effects on human beings, either directly or
indirectly?

21.1 Setting
Environmental topics 1 through 20 analyzed the proposed project’s impacts to the local and regional area. Due to the developed character of the project within the Desert Island community, this environmental document determined that impacts would be less than significant. Further determinations regarding the project’s impacts to biological and cultural resources, and well as its cumulative impact is discussed below.

21.2 Discussion
a) Less than Significant Impact with Mitigation. As concluded in the Cultural and Tribal Cultural Resources sections of this document, the proposed project would result in no impacts or less than significant impacts to these resources without the implementation of mitigation. The project has the potential to have an impact to biological resources, to mitigate these potential impacts Mitigation Measures BIO-1 and BIO-2 are proposed to reduce impacts to less than significant levels. The project is compatible with the City of Rancho Mirage General Plan and Zoning and its surroundings. The project will not significantly degrade the overall quality of the region’s environment, or substantially reduce the habitat of a wildlife species, case a fish or wildlife population to drop below self-sustaining levels, threaten to eliminate a plant or animal community, reduce the number or restrict the range of a rare of endangered plant or animal or eliminate important examples of the major periods or California history or prehistory. Based upon the information provided within this Initial Study, approval and implementation of the project is not expected to substantially alter or degrade the quality of the environment with the incorporation of mitigation.

b) Less than Significant Impact. The proposed project and its location is found to be adequate and consistent with existing and federal, state, and local policies and is consistent with the City of 6-207

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Initial Study/Mitigated Negative Declaration
May 2023/Page 140

Rancho Mirage General Plan and surrounding land use. As stated throughout, the proposed project is located in an area of Rancho Mirage that is developed. Future development in the vicinity of the project is anticipated to occur, however, developments would be consistent with the surrounding land uses, which includes residential communities. The cumulative impact of project development, future development and the existing uses are anticipated to be less than significant.

Approval and implementation of the proposed project would result in less than significant impacts related to cumulatively considerable impacts.

c) Less than Significant Impact. The proposed project will not result in impacts related to environmental effects that will cause substantial adverse effects on human beings. The project has been designed to comply with established design guidelines and current building standards.

The City’s review process will ensure that applicable guidelines are being followed. Based upon the findings provided in this document, and mitigation measures and standard conditions incorporated into the project, less than significant impacts are expected.

21.3 Mitigation Measures:

BIO-1: No less than 60 days prior to the start of Project-related activities, a burrowing owl habitat assessment shall be conducted by a qualified biologist according to the specifications of the Staff Report on Burrowing Owl Mitigation (Department of Fish and Game, March 2012 or most recent version).

If the habitat assessment demonstrates suitable burrowing owl habitat, then focused burrowing owl surveys shall be conducted by a qualified biologist according to the Staff Report on Burrowing Owl Mitigation. If burrowing owls are detected during the focused surveys, the qualified biologist and Project Applicant shall prepare a Burrowing Owl Plan that shall be submitted to CDFW for review and approval prior to commencing Project activities. The Burrowing Owl Plan shall describe proposed avoidance, minimization, and monitoring actions. The Burrowing Owl Plan shall include the number and location of occupied burrow sites, acres of burrowing owl habitat that will be impacted, details of site monitoring, and details on proposed buffers and other avoidance measures if avoidance is proposed. If impacts to occupied burrowing owl habitat or burrow cannot be avoided, the Burrowing Owl Plan shall also describe relocation actions that will be implemented.

Proposed implementation of burrow exclusion and closure should only be considered as a last resort, after all other options have been evaluated as exclusion is not in itself an avoidance, minimization, or mitigation method and has the possibility to result in take. If impacts to occupied burrows cannot be avoided, information shall be provided regarding adjacent or nearby suitable habitat available to owls along with proposed relocation actions. The Permittee shall implement the Burrowing Owl Plan following CDFW review and approval.

Preconstruction burrowing owl surveys shall be conducted no less than 14 days prior to the start of Project-related activities and within 24 hours prior to ground disturbance, in accordance with the Staff Report on Burrowing Owl Mitigation (2012 or most recent version). Preconstruction surveys should be performed by a qualified biologist following the recommendations and guidelines provided in the Staff Report on Burrowing Owl Mitigation. If the preconstruction surveys confirm occupied burrowing owl habitat, Project activities shall be immediately halted. The qualified biologist shall coordinate with CDFW and prepare a Burrowing Owl Plan that shall be submitted to CDFW for review and approval prior to commencing Project activities.

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BIO-2: Nesting bird surveys shall be performed by a qualified avian biologist no more than (3) days prior to vegetation removal or ground-disturbing activities. Pre-construction surveys shall focus on both direct and indirect evidence of nesting, including nest locations and nesting behavior. The qualified avian biologist will make every effort to avoid potential nest predation as a result of survey and monitoring efforts. If active nests are found during the pre-construction nesting bird surveys, a qualified biologist shall establish an appropriate nest buffer to be marked on the ground. Nest buffers are species specific and shall be at least 300 feet for passerines and 500 feet for raptors. A smaller or larger buffer may be determined by the qualified biologist familiar with the nesting phenology of the nesting species and based on nest and buffer monitoring results. Established buffers shall remain on-site until a qualified biologist determines the young have fledged or the nest is no longer active. Active nests and adequacy of the established buffer distance shall be monitored daily by the qualified biologist until the qualified biologist has determined the young have fledged or the Project has been completed. The qualified biologist has the authority to stop work if nesting pairs exhibit signs of disturbance.

Table XXI-1 Desert Island Hotel Mitigation Monitoring and Reporting Program Mitigation Measure
Responsible
for
Monitoring
Timing
Verification
(Date and
Initials)
BIO-1: Burrowing Owl Surveys
No less than 60 days prior to the start of
Project-related activities, a burrowing owl
habitat assessment shall be conducted by
a qualified biologist according to the
specifications of the Staff Report on
Burrowing Owl Mitigation (Department of
Fish and Game, March 2012 or most
recent version).

If the habitat assessment demonstrates
suitable burrowing owl habitat, then
focused burrowing owl surveys shall be
conducted by a qualified biologist
according to the Staff Report on
Burrowing Owl Mitigation. If burrowing
owls are detected during the focused
surveys, the qualified biologist and
Project Applicant shall prepare a
Burrowing Owl Plan that shall be
submitted to CDFW for review and
approval prior to commencing Project
activities. The Burrowing Owl Plan shall
describe proposed avoidance,
minimization, and monitoring actions. The
Burrowing Owl Plan shall include the
number and location of occupied burrow
sites, acres of burrowing owl habitat that
will be impacted, details of site
monitoring, and details on proposed
buffers and other avoidance measures if
avoidance is proposed. If impacts to
Planning
Division
Qualified
Biologist

Project
Applicant
Habitat assessment
and focused
surveys: No less
than 60 days prior to
the start of project-
related activities

Pre-construction
surveys: No less
than 14 days prior to
start of project-
related activities and
within 24 hours prior
to ground
disturbance

6-209

Desert Island Hotel
Initial Study/Mitigated Negative Declaration
May 2023/Page 142

occupied burrowing owl habitat or burrow
cannot be avoided, the Burrowing Owl
Plan shall also describe relocation actions
that will be implemented. Proposed
implementation of burrow exclusion and
closure should only be considered as a
last resort, after all other options have
been evaluated as exclusion is not in itself
an avoidance, minimization, or mitigation
method and has the possibility to result in
take. If impacts to occupied burrows
cannot be avoided, information shall be
provided regarding adjacent or nearby
suitable habitat available to owls along
with proposed relocation actions. The
Permittee shall implement the Burrowing
Owl Plan following CDFW review and
approval.

Preconstruction surveys should be
performed by a qualified biologist
following the recommendations and
guidelines provided in the Staff Report on
Burrowing Owl Mitigation. If the
preconstruction surveys confirm occupied
burrowing owl habitat, Project activities
shall be immediately halted. The qualified
biologist shall coordinate with CDFW and
prepare a Burrowing Owl Plan that shall
be submitted to CDFW for review and
approval prior to commencing Project
activities.

BIO-2: Avoidance of Nesting Birds
Nesting bird surveys shall be performed
by a qualified avian biologist no more than
(3) days prior to vegetation removal or
ground-disturbing activities. Pre-
construction surveys shall focus on both
direct and indirect evidence of nesting,
including nest locations and nesting
behavior. The qualified avian biologist will
make every effort to avoid potential nest
predation as a result of survey and
monitoring efforts. If active nests are
found during the pre-construction nesting
Planning
Division
Qualified
Avian
Biologist

Project
Applicant
No more than 3
days prior to
vegetation clearing
or ground-disturbing
activities
=
6-210

Desert Island Hotel
Initial Study/Mitigated Negative Declaration
May 2023/Page 143

bird surveys, a qualified biologist shall
establish an appropriate nest buffer to be
marked on the ground. Nest buffers are
species specific and shall be at least 300
feet for passerines and 500 feet for
raptors. A smaller or larger buffer may be
determined by the qualified biologist
familiar with the nesting phenology of the
nesting species and based on nest and
buffer monitoring results. Established
buffers shall remain on-site until a
qualified biologist determines the young
have fledged or the nest is no longer
active. Active nests and adequacy of the
established buffer distance shall be
monitored daily by the qualified biologist
until the qualified biologist has determined
the young have fledged or the Project has
been completed. The qualified biologist
has the authority to stop work if nesting
pairs exhibit signs of disturbance.

6-211

Desert Island Hotel
Initial Study/Mitigated Negative Declaration
May 2023/Page 144

REFERENCES

Alquist-Priolo Earthquake Fault Zoning (AP) Act, California Department of Conservation.

Analysis of the Coachella Valley PM10 Redesignation Request and Maintenance Plan, by the California Air Resources Board, February 2010.

CAL FIRE High Fire Severity Zone Maps.

California Emissions Estimator Model (CalEEMod), Version 2020.4.0.

California Greenhouse Gas Emissions for 2000 to 2017, Trends of Emissions and Other Indicators, 2019 Edition, California Air Resources Board.

City of Rancho Mirage Fire and Police Department Website.

City of Rancho Mirage 2017 General Plan Update.

City of Rancho Mirage Municipal Code.

Coachella Valley Water District, 2015 Urban Water Management Plan, Final Report, July 2016 PSUSD Fee Justification Study, 2022.

Enforcement and Compliance Fault Zoning Act, California Department of Conservation.

Enforcement and Compliance History Online, EPA, 2022.

EnviroStor, Department of Toxic Substances Control, 2022.

Farmland Mapping and Monitoring Program, California Department of Conservation.

Final 2016 Air Quality Management Plan (AQMP), by SCAQMD, March 2017.

Final 2003 Coachella Valley PM10 State Implementation Plan (CVSIP), by SCAQMD, August 2003.

Flood Insurance Rate Map # 06065C2206G, Federal Emergency Management Agency, Effective August 28, 2008.

GeoTracker, State Water Resources Control Board, 2022.

Mineral Land Classification Map, Riverside County, 2007.

Noise and Vibration Impact Analysis, Urban Crossroads, Inc. May 2022. 2017 Rancho Mirage General Plan EIR
Release No. 18-37 & 19-35, California Air Resources Board Press Release, July 2018 and August 2019.

Riverside County General Plan, Safety Element, 2016; Riverside County General Plan Geotechnical Report 2000.

Water Quality Control Plan for the Colorado River Basin Region, January 2019.

APPENDICES
Appendix A - California Emissions Estimator Model (CalEEMod), Version 2020.4.0, July 20, 2022 Appendix B - Noise and Vibration Impact Analysis, Urban Crossroads, Inc. May 26, 2022.

Appendix C - Desert Island Hotel Vehicle Miles Traveled (VMT) Evaluation, Urban Crossroads, Inc., May 16, 2022.

Appendix D - Desert Island Hotel Focused Traffic Analysis, Urban Crossroads, Inc. May 16, 2022.

Appendix E - Agua Caliente Band of Cahuilla Indians Letter, September 7, 2022. 6-212

Desert Island Hotel
Initial Study/Mitigated Negative Declaration
May 2023/Page 145

Appendix F Comment Letters Received from Initial Circulation of Draft IS/MND, May 30th, 2023.

6-213

CITY OF RANCHO MIRAGE

69-825 Highway 111
Rancho Mirage, California 92270
Phone: (760) 328-2266
Fax: (760) 324-9851

DESERT ISLAND HOTEL

ENVIRONMENTAL INITIAL STUDY

APPENDIX

Appendix A
California Emissions Estimator Model (CalEEMod), Version 2020.4.0

Appendix B
Noise and Vibration Impact Analysis, Urban Crossroads, Inc. May 2022

Appendix C
Desert Island VMT Evaluation, Urban Crossroads, Inc., May 2022

Appendix D
Desert Island Hotel Focused Traffic Analysis, Urban Crossroads, Inc. May 2022

Appendix E
Agua Caliente Band of Cahuilla Indians Letter, September 2022

Appendix F
Comment Letters Received from Initial Circulation of Draft IS/MND, May 2023

6-214

DESERT ISLAND HOTEL

APPENDIX

Appendix A
California Emissions Estimator Model (CalEEMod),
Version 2020.4.0.

6-215

Desert Island SP - Amendment
Riverside-Salton Sea County, Annual
Project Characteristics - This model accounts for the proposed SP build-out condition with a tentative construction start date of May 1, 2023 for modeling purposes.

Land Use - Population total is based on 1.87 PPH for RM per CADF. GC size is based on combined driving range and desert gardens acreage. Health Club includes pool cafe, yoga pavilion, and restroom SF. GLI solely applies to the 8,000 SF golf course maintenance building for modeling purposes and does not imply the presence of traditional general light industry uses.

Demolition - This model accounts for 5,400 tons of debris associated with 2,700 CY of hardscape and building material removal at a conservative rate of 2 tons per CY.

Architectural Coating - SCAQMD Rule 1113 VOC Content Limits Apply as a Requirement

1.1 Land Usage
Land Uses Size Metric Lot Acreage Floor Surface Area Population General Light Industry 8.00 1000sqft 0.18 8,000.00 0
Parking Lot 228.00 Space 2.05 91,200.00 0
Golf Course 3.50 Acre 3.50 152,460.00 0
Health Club 6.30 1000sqft 0.14 6,300.00 0
Hotel 42.00 Room 1.40 60,984.00 0
Recreational Swimming Pool 13.10 1000sqft 0.30 13,100.00 0 Single Family Housing 11.00 Dwelling Unit 3.57 19,800.00 21

1.2 Other Project Characteristics
Urbanization
Climate Zone
Urban
15 Wind Speed (m/s)Precipitation Freq (Days)2.4 28

1.3 User Entered Comments & Non-Default Data

1.0 Project Characteristics
Utility Company Southern California Edison
2025Operational Year
CO2 Intensity
(lb/MWhr)
390.98 0.033CH4 Intensity
(lb/MWhr)

0.004N2O Intensity
(lb/MWhr)
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 1 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-216

Vehicle Trips - Consistent with the traffic assessment, the trip generating uses are the hotel rooms/keys, residential units, and golf course driving range facilities.

The trip rates are default to the CalEEMod parameters.

Woodstoves - SCAQMD Rule 445 is applied pertaining to wood burning.

Area Coating - SCAQMD Rule 1113 VOC Content Limits are applied Construction Off-road Equipment Mitigation - Dust control measures are a requirement under SCAQMD Rule 403/403.1 and Section 15.64.630 of the Rancho Mirage Municipal Code.

Area Mitigation - SCAQMD Rule 1113 VOC Content Limits Apply Energy Mitigation - High efficiency lighting would be in the form of LED.

Waste Mitigation -
Trips and VMT -
Grading - Exported material (2,700 CY) corresponds to demolition of existing facilities.

Table Name Column Name Default Value New Value
tblArchitecturalCoating EF_Nonresidential_Exterior 250.00 50.00 tblArchitecturalCoating EF_Nonresidential_Interior 250.00 50.00 tblArchitecturalCoating EF_Parking 250.00 100.00
tblArchitecturalCoating EF_Residential_Exterior 250.00 50.00 tblArchitecturalCoating EF_Residential_Interior 250.00 50.00 tblAreaCoating Area_EF_Nonresidential_Exterior 250 50
tblAreaCoating Area_EF_Nonresidential_Interior 250 50
tblAreaCoating Area_EF_Parking 250 100
tblAreaCoating Area_EF_Residential_Exterior 250 50
tblAreaCoating Area_EF_Residential_Interior 250 50
tblAreaMitigation UseLowVOCPaintParkingCheck False True tblConstDustMitigation CleanPavedRoadPercentReduction 0 20 tblConstDustMitigation WaterUnpavedRoadMoistureContent 0 50 tblConstDustMitigation WaterUnpavedRoadVehicleSpeed 0 15 tblFireplaces NumberWood 1.10 0.00
tblGrading MaterialExported 0.00 2,700.00
tblLandUse Population 31.00 21.00
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 2 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-217

2.0 Emissions Summary
tblVehicleTrips ST_TR 1.99 0.00
tblVehicleTrips ST_TR 20.87 0.00
tblVehicleTrips ST_TR 9.10 0.00
tblVehicleTrips SU_TR 5.00 0.00
tblVehicleTrips SU_TR 26.73 0.00
tblVehicleTrips SU_TR 13.60 0.00
tblVehicleTrips WD_TR 4.96 0.00
tblVehicleTrips WD_TR 32.93 0.00
tblVehicleTrips WD_TR 28.82 0.00
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 3 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-218

2.1 Overall Construction
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Year tons/yr MT/yr
2023 0.2045 1.8555 1.9134 4.3500e-
003

0.3902 0.0795 0.4697 0.1400 0.0741 0.2141 0.0000 388.4797 388.4797 0.0755 0.0117 393.8507 2024 0.4397 1.5278 2.0441 4.3800e-
003

0.1381 0.0637 0.2018 0.0373 0.0599 0.0971 0.0000 391.1172 391.1172 0.0604 0.0125 396.3503 Maximum 0.4397 1.8555 2.0441 4.3800e-
003

0.3902 0.0795 0.4697 0.1400 0.0741 0.2141 0.0000 391.1172 391.1172 0.0755 0.0125 396.3503 Unmitigated Construction
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Year tons/yr MT/yr
2023 0.2045 1.8555 1.9134 4.3500e-
003

0.1716 0.0795 0.2511 0.0575 0.0741 0.1317 0.0000 388.4794 388.4794 0.0755 0.0117 393.8504 2024 0.4397 1.5278 2.0441 4.3800e-
003

0.1150 0.0637 0.1787 0.0316 0.0599 0.0915 0.0000 391.1169 391.1169 0.0604 0.0125 396.3501 Maximum 0.4397 1.8555 2.0441 4.3800e-
003

0.1716 0.0795 0.2511 0.0575 0.0741 0.1317 0.0000 391.1169 391.1169 0.0755 0.0125 396.3501 Mitigated Construction
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 4 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-219

ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio-CO2 Total CO2 CH4 N20 CO2e
Percent
Reduction

0.00 0.00 0.00 0.00 45.76 0.00 36.00 49.71 0.00 28.31 0.00 0.00 0.00 0.00 0.00 0.00 Quarter Start Date End Date Maximum Unmitigated ROG + NOX (tons/quarter)Maximum Mitigated ROG + NOX (tons/quarter) 1 5-1-2023 7-31-2023 1.0496 1.0496
2 8-1-2023 10-31-2023 0.6022 0.6022
3 11-1-2023 1-31-2024 0.5915 0.5915
4 2-1-2024 4-30-2024 0.5545 0.5545
5 5-1-2024 7-31-2024 0.5653 0.5653
6 8-1-2024 9-30-2024 0.3362 0.3362
Highest 1.0496 1.0496
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 5 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-220

2.2 Overall Operational
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Area 0.4107 7.5000e-
003

0.1206 1.5000e-
004

6.4400e-
003

0.7362 7.0701 7.8063 3.7200e-
003

1.3000e-
004

7.9370
Energy 0.0237 0.2148 0.1745 1.2900e-
003

0.0164 0.0164 0.0164 0.0164 0.0000 469.8604 469.8604 0.0243 6.7100e- 003
472.4683
Mobile 0.1587 0.1985 1.2819 2.6500e-
003

0.2833 2.2300e-
003

0.2855 0.0757 2.0900e-
003

0.0778 0.0000 250.7839 250.7839 0.0163 0.0141 255.3884
Waste 0.0000 0.0000 0.0000 0.0000 31.5387 0.0000 31.5387 1.8639 0.0000 78.1358 Water 0.0000 0.0000 0.0000 0.0000 1.5163 21.7625 23.2788 0.1576 3.9000e- 003

28.3804
Total 0.5931 0.4207 1.5770 4.0900e-
003

0.2833 0.0251 0.3083 0.0757 0.0249 0.1006 33.7912 749.4768 783.2680 2.0658 0.0248 842.3100 Unmitigated Operational
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 6 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-221

0.0844 0.0000 4.6000e-
004

4.6000e-
004

0.0000 0.1388 0.1388 1.4000e-
004

0.0000 0.1423
Energy 0.0237 0.2148 0.1745 1.2900e-
003

0.0164 0.0164 0.0164 0.0164 0.0000 457.8500 457.8500 0.0233 6.5900e- 003
460.3960
Mobile 0.1587 0.1985 1.2819 2.6500e-
003

0.2833 2.2300e-
003

0.2855 0.0757 2.0900e-
003

0.0778 0.0000 250.7839 250.7839 0.0163 0.0141 255.3884
Waste 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Water 0.0000 0.0000 0.0000 0.0000 1.2131 18.9008 20.1139 0.1262 3.1400e- 003

24.2029
Total 0.5610 0.4142 1.5408 3.9400e-
003

0.2833 0.0191 0.3023 0.0757 0.0189 0.0946 1.2131 727.6735 728.8866 0.1659 0.0238 740.1296 Mitigated Operational

5.42 1.55 2.30 3.67 0.00 23.86 1.94 0.00 24.00 5.94 96.41 2.91 6.94 91.97 4.07 12.13 CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 7 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-222

4 Building Construction Building Construction 7/22/2023 9/13/2024 5 300 5 Paving Paving 9/14/2024 10/11/2024 5 20
6 Architectural Coating Architectural Coating 10/12/2024 11/8/2024 5 20 OffRoad Equipment
Phase Name Offroad Equipment Type Amount Usage Hours Horse Power Load Factor Demolition Concrete/Industrial Saws 1 8.00 81 0.73
Demolition Excavators 3 8.00 158 0.38
Demolition Rubber Tired Dozers 2 8.00 247 0.40
Site Preparation Rubber Tired Dozers 3 8.00 247 0.40
Site Preparation Tractors/Loaders/Backhoes 4 8.00 97 0.37 Grading Excavators 2 8.00 158 0.38
Grading Graders 1 8.00 187 0.41
Grading Rubber Tired Dozers 1 8.00 247 0.40
Grading Tractors/Loaders/Backhoes 2 8.00 97 0.37
Building Construction Cranes 1 7.00 231 0.29
Building Construction Forklifts 3 8.00 89 0.20
Building Construction Generator Sets 1 8.00 84 0.74
Building Construction Tractors/Loaders/Backhoes 3 7.00 97 0.37 Building Construction Welders 1 8.00 46 0.45
Paving Pavers 2 8.00 130 0.42
Paving Paving Equipment 2 8.00 132 0.36
Paving Rollers 2 8.00 80 0.38
Residential Indoor: 40,095; Residential Outdoor: 13,365; Non-Residential Indoor: 112,926; Non-Residential Outdoor: 37,642; Striped Parking Area: 5,472 (Architectural Coating – sqft)
Acres of Grading (Site Preparation Phase): 15
Acres of Grading (Grading Phase): 90
Acres of Paving: 2.05
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 8 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-223

3.1 Mitigation Measures Construction
Use Soil Stabilizer
Replace Ground Cover
Water Exposed Area
Water Unpaved Roads
Reduce Vehicle Speed on Unpaved Roads
Clean Paved Roads
Architectural Coating Air Compressors 1 6.00 78 0.48
Grading Scrapers 2 8.00 367 0.48
Trips and VMT
Phase Name Offroad Equipment
Count
Worker Trip
Number
Vendor Trip
Number
Hauling Trip
Number
Worker Trip
Length
Vendor Trip
Length
Hauling Trip
Length
Worker Vehicle
Class
Vendor
Vehicle Class
Hauling
Vehicle Class
Demolition 6 15.00 0.00 534.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Site Preparation 7 18.00 0.00 338.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Grading 8 20.00 0.00 0.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Building Construction 9 143.00 56.00 0.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Paving 6 15.00 0.00 0.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Architectural Coating 1 29.00 0.00 0.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 9 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-224

3.2 Demolition - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Fugitive Dust 0.0581 0.0000 0.0581 8.8000e-
003

0.0000 8.8000e-
003

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Off-Road 0.0227 0.2148 0.1964 3.9000e-
004

9.9800e-
003

9.2800e-
003

0.0000 33.9921 33.9921 9.5200e-
003

0.0000 34.2301
Total 0.0227 0.2148 0.1964 3.9000e-
004

0.0581 9.9800e-
003

0.0681 8.8000e-
003

9.2800e-
003

0.0181 0.0000 33.9921 33.9921 9.5200e-
003

0.0000 34.2301
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Hauling 5.6000e-
004

0.0281 7.4000e-
003

1.5000e-
004

4.6100e-
003

3.2000e-
004

4.9300e-
003

1.2600e-
003

3.1000e-
004

1.5700e-
003

0.0000 14.2226 14.2226 2.0000e-
004

2.2400e-
003

14.8955
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 4.1000e-
004

2.9000e-
004

3.7100e-
003

1.0000e-
005

1.2300e-
003

1.0000e-
005

1.2400e-
003

3.3000e-
004

1.0000e-
005

3.3000e-
004

0.0000 0.9565 0.9565 3.0000e-
005

3.0000e-
005

0.9653
Total 9.7000e-
004

0.0284 0.0111 1.6000e-
004

5.8400e-
003

3.3000e-
004

6.1700e-
003

1.5900e-
003

3.2000e-
004

1.9000e-
003

0.0000 15.1791 15.1791 2.3000e-
004

2.2700e-
003

15.8607
Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 10 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-225

0.0000 2.7500e-
003

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Off-Road 0.0227 0.2148 0.1964 3.9000e-
004

9.9800e-
003

9.2800e-
003

0.0000 33.9920 33.9920 9.5200e-
003

0.0000 34.2300
Total 0.0227 0.2148 0.1964 3.9000e-
004

0.0181 9.9800e-
003

0.0281 2.7500e-
003

9.2800e-
003

0.0120 0.0000 33.9920 33.9920 9.5200e-
003

0.0000 34.2300
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Hauling 5.6000e-
004

0.0281 7.4000e-
003

1.5000e-
004

3.9100e-
003

3.2000e-
004

4.2300e-
003

1.0900e-
003

3.1000e-
004

1.4000e-
003

0.0000 14.2226 14.2226 2.0000e-
004

2.2400e-
003

14.8955
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 4.1000e-
004

2.9000e-
004

3.7100e-
003

1.0000e-
005

1.0200e-
003

1.0000e-
005

1.0300e-
003

2.8000e-
004

1.0000e-
005

2.8000e-
004

0.0000 0.9565 0.9565 3.0000e-
005

3.0000e-
005

0.9653
Total 9.7000e-
004

0.0284 0.0111 1.6000e-
004

4.9300e-
003

3.3000e-
004

5.2600e-
003

1.3700e-
003

3.2000e-
004

1.6800e-
003

0.0000 15.1791 15.1791 2.3000e-
004

2.2700e-
003

15.8607
Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 11 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-226

3.3 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Fugitive Dust 0.0985 0.0000 0.0985 0.0505 0.0000 0.0505 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 0.0133 0.1376 0.0912 1.9000e-
004

6.3300e-
003

5.8200e-
003

0.0000 16.7254 16.7254 5.4100e-
003

0.0000 16.8606
Total 0.0133 0.1376 0.0912 1.9000e-
004

0.0985 6.3300e-
003

0.1048 0.0505 5.8200e-
003

0.0564 0.0000 16.7254 16.7254 5.4100e-
003

0.0000 16.8606
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Hauling 3.6000e-
004

0.0178 4.6800e-
003

9.0000e-
005

2.9100e-
003

2.0000e-
004

3.1200e-
003

8.0000e-
004

1.9000e-
004

1.0000e-
003

0.0000 9.0023 9.0023 1.3000e-
004

1.4200e-
003

9.4282
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 2.5000e-
004

1.7000e-
004

2.2300e-
003

1.0000e-
005

7.4000e-
004

0.0000 7.4000e-
004

2.0000e-
004

0.0000 2.0000e-
004

0.0000 0.5739 0.5739 2.0000e-
005

2.0000e-
005

0.5792
Total 6.1000e-
004

0.0180 6.9100e-
003

1.0000e-
004

3.6500e-
003

2.0000e-
004

3.8600e-
003

1.0000e-
003

1.9000e-
004

1.2000e-
003

0.0000 9.5762 9.5762 1.5000e-
004

1.4400e-
003

10.0074
Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 12 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-227

3.3 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Fugitive Dust 0.0307 0.0000 0.0307 0.0158 0.0000 0.0158 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 0.0133 0.1376 0.0912 1.9000e-
004

6.3300e-
003

5.8200e-
003

0.0000 16.7253 16.7253 5.4100e-
003

0.0000 16.8606
Total 0.0133 0.1376 0.0912 1.9000e-
004

0.0307 6.3300e-
003

0.0371 0.0158 5.8200e-
003

0.0216 0.0000 16.7253 16.7253 5.4100e-
003

0.0000 16.8606
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Hauling 3.6000e-
004

0.0178 4.6800e-
003

9.0000e-
005

2.4800e-
003

2.0000e-
004

2.6800e-
003

6.9000e-
004

1.9000e-
004

8.9000e-
004

0.0000 9.0023 9.0023 1.3000e-
004

1.4200e-
003

9.4282
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 2.5000e-
004

1.7000e-
004

2.2300e-
003

1.0000e-
005

6.1000e-
004

0.0000 6.2000e-
004

1.7000e-
004

0.0000 1.7000e-
004

0.0000 0.5739 0.5739 2.0000e-
005

2.0000e-
005

0.5792
Total 6.1000e-
004

0.0180 6.9100e-
003

1.0000e-
004

3.0900e-
003

2.0000e-
004

3.3000e-
003

8.6000e-
004

1.9000e-
004

1.0600e-
003

0.0000 9.5762 9.5762 1.5000e-
004

1.4400e-
003

10.0074
Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 13 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-228

3.4 Grading - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Fugitive Dust 0.1381 0.0000 0.1381 0.0548 0.0000 0.0548 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 0.0498 0.5177 0.4208 9.3000e-
004

0.0214 0.0214 0.0197 0.0197 0.0000 81.8028 81.8028 0.0265 0.0000 82.4642 Total 0.0498 0.5177 0.4208 9.3000e-
004

0.1381 0.0214 0.1594 0.0548 0.0197 0.0745 0.0000 81.8028 81.8028 0.0265 0.0000 82.4642 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 8.2000e-
004

5.8000e-
004

7.4300e-
003

2.0000e-
005

2.4700e-
003

1.0000e-
005

2.4800e-
003

6.6000e-
004

1.0000e-
005

6.7000e-
004

0.0000 1.9131 1.9131 6.0000e-
005

5.0000e-
005

1.9305
Total 8.2000e-
004

5.8000e-
004

7.4300e-
003

2.0000e-
005

2.4700e-
003

1.0000e-
005

2.4800e-
003

6.6000e-
004

1.0000e-
005

6.7000e-
004

0.0000 1.9131 1.9131 6.0000e-
005

5.0000e-
005

1.9305
Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 14 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-229

3.4 Grading - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Fugitive Dust 0.0431 0.0000 0.0431 0.0171 0.0000 0.0171 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 0.0498 0.5177 0.4208 9.3000e-
004

0.0214 0.0214 0.0197 0.0197 0.0000 81.8027 81.8027 0.0265 0.0000 82.4641 Total 0.0498 0.5177 0.4208 9.3000e-
004

0.0431 0.0214 0.0644 0.0171 0.0197 0.0368 0.0000 81.8027 81.8027 0.0265 0.0000 82.4641 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 8.2000e-
004

5.8000e-
004

7.4300e-
003

2.0000e-
005

2.0400e-
003

1.0000e-
005

2.0500e-
003

5.5000e-
004

1.0000e-
005

5.6000e-
004

0.0000 1.9131 1.9131 6.0000e-
005

5.0000e-
005

1.9305
Total 8.2000e-
004

5.8000e-
004

7.4300e-
003

2.0000e-
005

2.0400e-
003

1.0000e-
005

2.0500e-
003

5.5000e-
004

1.0000e-
005

5.6000e-
004

0.0000 1.9131 1.9131 6.0000e-
005

5.0000e-
005

1.9305
Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 15 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-230

3.5 Building Construction - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 0.0904 0.8271 0.9340 1.5500e-
003

0.0402 0.0402 0.0379 0.0379 0.0000 133.2877 133.2877 0.0317 0.0000 134.0804 Total 0.0904 0.8271 0.9340 1.5500e-
003

0.0402 0.0402 0.0379 0.0379 0.0000 133.2877 133.2877 0.0317 0.0000 134.0804 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 3.2400e-
003

0.0954 0.0420 4.5000e-
004

0.0159 7.2000e-
004

0.0167 4.6000e-
003

6.9000e-
004

5.2900e-
003

0.0000 43.5694 43.5694 4.6000e-
004

6.4500e-
003

45.5044
Worker 0.0226 0.0158 0.2036 5.6000e-
004

0.0677 3.3000e-
004

0.0680 0.0180 3.1000e-
004

0.0183 0.0000 52.4339 52.4339 1.5100e-
003

1.4800e-
003

52.9124
Total 0.0258 0.1112 0.2455 1.0100e-
003

0.0836 1.0500e-
003

0.0846 0.0226 1.0000e-
003

0.0236 0.0000 96.0033 96.0033 1.9700e-
003

7.9300e-
003

98.4168
Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 16 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-231

0.0402 0.0402 0.0379 0.0379 0.0000 133.2876 133.2876 0.0317 0.0000 134.0803 Total 0.0904 0.8271 0.9340 1.5500e-
003

0.0402 0.0402 0.0379 0.0379 0.0000 133.2876 133.2876 0.0317 0.0000 134.0803 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 3.2400e-
003

0.0954 0.0420 4.5000e-
004

0.0137 7.2000e-
004

0.0144 4.0500e-
003

6.9000e-
004

4.7400e-
003

0.0000 43.5694 43.5694 4.6000e-
004

6.4500e-
003

45.5044
Worker 0.0226 0.0158 0.2036 5.6000e-
004

0.0559 3.3000e-
004

0.0563 0.0151 3.1000e-
004

0.0154 0.0000 52.4339 52.4339 1.5100e-
003

1.4800e-
003

52.9124
Total 0.0258 0.1112 0.2455 1.0100e-
003

0.0696 1.0500e-
003

0.0707 0.0191 1.0000e-
003

0.0201 0.0000 96.0033 96.0033 1.9700e-
003

7.9300e-
003

98.4168
Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 17 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-232

3.5 Building Construction - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 0.1361 1.2436 1.4954 2.4900e-
003

0.0567 0.0567 0.0534 0.0534 0.0000 214.4604 214.4604 0.0507 0.0000 215.7283 Total 0.1361 1.2436 1.4954 2.4900e-
003

0.0567 0.0567 0.0534 0.0534 0.0000 214.4604 214.4604 0.0507 0.0000 215.7283 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 5.1300e-
003

0.1534 0.0668 7.2000e-
004

0.0256 1.1600e-
003

0.0268 7.4000e-
003

1.1100e-
003

8.5100e-
003

0.0000 69.0097 69.0097 7.6000e-
004

0.0102 72.0708
Worker 0.0339 0.0227 0.3073 8.8000e-
004

0.1088 5.1000e-
004

0.1093 0.0289 4.7000e-
004

0.0294 0.0000 82.3287 82.3287 2.2100e-
003

2.2100e-
003

83.0436
Total 0.0390 0.1761 0.3741 1.6000e-
003

0.1345 1.6700e-
003

0.1361 0.0363 1.5800e-
003

0.0379 0.0000 151.3384 151.3384 2.9700e-
003

0.0124 155.1144
Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 18 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-233

0.0567 0.0567 0.0534 0.0534 0.0000 214.4602 214.4602 0.0507 0.0000 215.7280 Total 0.1361 1.2436 1.4954 2.4900e-
003

0.0567 0.0567 0.0534 0.0534 0.0000 214.4602 214.4602 0.0507 0.0000 215.7280 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 5.1300e-
003

0.1534 0.0668 7.2000e-
004

0.0220 1.1600e-
003

0.0232 6.5100e-
003

1.1100e-
003

7.6200e-
003

0.0000 69.0097 69.0097 7.6000e-
004

0.0102 72.0708
Worker 0.0339 0.0227 0.3073 8.8000e-
004

0.0900 5.1000e-
004

0.0905 0.0243 4.7000e-
004

0.0247 0.0000 82.3287 82.3287 2.2100e-
003

2.2100e-
003

83.0436
Total 0.0390 0.1761 0.3741 1.6000e-
003

0.1120 1.6700e-
003

0.1136 0.0308 1.5800e-
003

0.0324 0.0000 151.3384 151.3384 2.9700e-
003

0.0124 155.1144
Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 19 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-234

3.6 Paving - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 9.8800e-
003

0.0953 0.1463 2.3000e-
004

4.6900e-
003

4.3100e-
003

0.0000 20.0265 20.0265 6.4800e-
003

0.0000 20.1885
Paving 2.6900e-
003

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Total 0.0126 0.0953 0.1463 2.3000e-
004

4.6900e-
003

4.3100e-
003

0.0000 20.0265 20.0265 6.4800e-
003

0.0000 20.1885
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 3.8000e-
004

2.6000e-
004

3.4800e-
003

1.0000e-
005

1.2300e-
003

1.0000e-
005

1.2400e-
003

3.3000e-
004

1.0000e-
005

3.3000e-
004

0.0000 0.9336 0.9336 3.0000e-
005

3.0000e-
005

0.9417
Total 3.8000e-
004

2.6000e-
004

3.4800e-
003

1.0000e-
005

1.2300e-
003

1.0000e-
005

1.2400e-
003

3.3000e-
004

1.0000e-
005

3.3000e-
004

0.0000 0.9336 0.9336 3.0000e-
005

3.0000e-
005

0.9417
Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 20 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-235

3.6 Paving - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 9.8800e-
003

0.0953 0.1463 2.3000e-
004

4.6900e-
003

4.3100e-
003

0.0000 20.0265 20.0265 6.4800e-
003

0.0000 20.1884
Paving 2.6900e-
003

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Total 0.0126 0.0953 0.1463 2.3000e-
004

4.6900e-
003

4.3100e-
003

0.0000 20.0265 20.0265 6.4800e-
003

0.0000 20.1884
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 3.8000e-
004

2.6000e-
004

3.4800e-
003

1.0000e-
005

1.0200e-
003

1.0000e-
005

1.0300e-
003

2.8000e-
004

1.0000e-
005

2.8000e-
004

0.0000 0.9336 0.9336 3.0000e-
005

3.0000e-
005

0.9417
Total 3.8000e-
004

2.6000e-
004

3.4800e-
003

1.0000e-
005

1.0200e-
003

1.0000e-
005

1.0300e-
003

2.8000e-
004

1.0000e-
005

2.8000e-
004

0.0000 0.9336 0.9336 3.0000e-
005

3.0000e-
005

0.9417
Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 21 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-236

3.7 Architectural Coating - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Archit. Coating 0.2491 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 1.8100e-
003

0.0122 0.0181 3.0000e-
005

6.1000e-
004

0.0000 2.5533 2.5533 1.4000e-
004

0.0000 2.5569
Total 0.2509 0.0122 0.0181 3.0000e-
005

6.1000e-
004

0.0000 2.5533 2.5533 1.4000e-
004

0.0000 2.5569
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 7.4000e-
004

5.0000e-
004

6.7400e-
003

2.0000e-
005

2.3900e-
003

1.0000e-
005

2.4000e-
003

6.3000e-
004

1.0000e-
005

6.4000e-
004

0.0000 1.8050 1.8050 5.0000e-
005

5.0000e-
005

1.8207
Total 7.4000e-
004

5.0000e-
004

6.7400e-
003

2.0000e-
005

2.3900e-
003

1.0000e-
005

2.4000e-
003

6.3000e-
004

1.0000e-
005

6.4000e-
004

0.0000 1.8050 1.8050 5.0000e-
005

5.0000e-
005

1.8207
Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 22 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-237

0.0122 0.0181 3.0000e-
005

6.1000e-
004

0.0000 2.5533 2.5533 1.4000e-
004

0.0000 2.5568
Total 0.2509 0.0122 0.0181 3.0000e-
005

6.1000e-
004

0.0000 2.5533 2.5533 1.4000e-
004

0.0000 2.5568
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 7.4000e-
004

5.0000e-
004

6.7400e-
003

2.0000e-
005

1.9700e-
003

1.0000e-
005

1.9800e-
003

5.3000e-
004

1.0000e-
005

5.4000e-
004

0.0000 1.8050 1.8050 5.0000e-
005

5.0000e-
005

1.8207
Total 7.4000e-
004

5.0000e-
004

6.7400e-
003

2.0000e-
005

1.9700e-
003

1.0000e-
005

1.9800e-
003

5.3000e-
004

1.0000e-
005

5.4000e-
004

0.0000 1.8050 1.8050 5.0000e-
005

5.0000e-
005

1.8207
Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 23 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-238

4.0 Operational Detail - Mobile
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Mitigated 0.1587 0.1985 1.2819 2.6500e-
003

0.2833 2.2300e-
003

0.2855 0.0757 2.0900e-
003

0.0778 0.0000 250.7839 250.7839 0.0163 0.0141 255.3884
Unmitigated 0.1587 0.1985 1.2819 2.6500e-
003

0.2833 2.2300e-
003

0.2855 0.0757 2.0900e-
003

0.0778 0.0000 250.7839 250.7839 0.0163 0.0141 255.3884

4.1 Mitigation Measures Mobile

4.2 Trip Summary Information

4.3 Trip Type Information
Average Daily Trip Rate Unmitigated Mitigated
Land Use Weekday Saturday Sunday Annual VMT Annual VMT
General Light Industry 0.00 0.00 0.00
Golf Course 13.09 13.09 13.09 21,130 21,130
Health Club 0.00 0.00 0.00
Hotel 351.12 343.98 249.90 498,439 498,439
Parking Lot 0.00 0.00 0.00
Recreational Swimming Pool 0.00 0.00 0.00
Single Family Housing 103.84 104.94 94.05 229,505 229,505 Total 468.05 462.01 357.04 749,074 749,074
Miles Trip %Trip Purpose %
Land Use H-W or C-W H-S or C-C H-O or C-NW H-W or C-W H-S or C-C H-O or C-NW Primary Diverted Pass-by General Light Industry 12.50 4.20 5.40 59.00 28.00 13.00 92 5 3 CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 24 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-239

Miles Trip %Trip Purpose %
Land Use H-W or C-W H-S or C-C H-O or C-NW H-W or C-W H-S or C-C H-O or C-NW Primary Diverted Pass-by Golf Course 12.50 4.20 5.40 33.00 48.00 19.00 52 39 9
Health Club 12.50 4.20 5.40 16.90 64.10 19.00 52 39 9
Hotel 12.50 4.20 5.40 19.40 61.60 19.00 58 38 4
Parking Lot 12.50 4.20 5.40 0.00 0.00 0.00 0 0 0
Recreational Swimming Pool 12.50 4.20 5.40 33.00 48.00 19.00 52 39 9 Single Family Housing 11.00 3.50 4.50 40.20 19.20 40.60 86 11 3

4.4 Fleet Mix
Land Use LDA LDT1 LDT2 MDV LHD1 LHD2 MHD HHD OBUS UBUS MCY SBUS MH General Light Industry 0.540541 0.056458 0.173793 0.136090 0.025268 0.007074 0.011525 0.018705 0.000610 0.000304 0.023606 0.001094 0.004932 Golf Course 0.540541 0.056458 0.173793 0.136090 0.025268 0.007074 0.011525 0.018705 0.000610 0.000304 0.023606 0.001094 0.004932 Health Club 0.540541 0.056458 0.173793 0.136090 0.025268 0.007074 0.011525 0.018705 0.000610 0.000304 0.023606 0.001094 0.004932 Hotel 0.540541 0.056458 0.173793 0.136090 0.025268 0.007074 0.011525 0.018705 0.000610 0.000304 0.023606 0.001094 0.004932 Parking Lot 0.540541 0.056458 0.173793 0.136090 0.025268 0.007074 0.011525 0.018705 0.000610 0.000304 0.023606 0.001094 0.004932 Recreational Swimming Pool 0.540541 0.056458 0.173793 0.136090 0.025268 0.007074 0.011525 0.018705 0.000610 0.000304 0.023606 0.001094 0.004932 Single Family Housing 0.540541 0.056458 0.173793 0.136090 0.025268 0.007074 0.011525 0.018705 0.000610 0.000304 0.023606 0.001094 0.004932

5.0 Energy Detail

5.1 Mitigation Measures Energy
Install High Efficiency Lighting
Historical Energy Use: N
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 25 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-240

ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Electricity
Mitigated

0.0000 0.0000 0.0000 0.0000 0.0000 223.0714 223.0714 0.0188 2.2800e- 003
224.2222
Electricity
Unmitigated

0.0000 0.0000 0.0000 0.0000 0.0000 235.0818 235.0818 0.0198 2.4100e- 003
236.2946
NaturalGas
Mitigated

0.0237 0.2148 0.1745 1.2900e-
003

0.0164 0.0164 0.0164 0.0164 0.0000 234.7786 234.7786 4.5000e- 003

4.3000e-
003
236.1737
NaturalGas
Unmitigated

0.0237 0.2148 0.1745 1.2900e-
003

0.0164 0.0164 0.0164 0.0164 0.0000 234.7786 234.7786 4.5000e- 003

4.3000e-
003
236.1737
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 26 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-241

5.2 Energy by Land Use - NaturalGas
NaturalGa
s Use
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Land Use kBTU/yr tons/yr MT/yr
General Light
Industry
258640 1.3900e-
003

0.0127 0.0107 8.0000e-
005

9.6000e-
004

0.0000 13.8020 13.8020 2.6000e-
004

2.5000e-
004

13.8840
Golf Course 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Health Club 203679 1.1000e-
003

9.9800e-
003

8.3900e-
003

6.0000e-
005

7.6000e-
004

0.0000 10.8691 10.8691 2.1000e-
004

2.0000e-
004

10.9337
Hotel 3.62611e
+006

0.0196 0.1778 0.1493 1.0700e-
003

0.0135 0.0135 0.0135 0.0135 0.0000 193.5030 193.5030 3.7100e- 003

3.5500e-
003
194.6529
Parking Lot 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Recreational
Swimming Pool
0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Single Family
Housing
311156 1.6800e-
003

0.0143 6.1000e-
003

9.0000e-
005

1.1600e-
003

0.0000 16.6045 16.6045 3.2000e-
004

3.0000e-
004

16.7032
Total 0.0237 0.2148 0.1745 1.3000e-
003

0.0164 0.0164 0.0164 0.0164 0.0000 234.7786 234.7786 4.5000e- 003

4.3000e-
003
236.1737
Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 27 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-242

0.0127 0.0107 8.0000e-
005

9.6000e-
004

0.0000 13.8020 13.8020 2.6000e-
004

2.5000e-
004

13.8840
Golf Course 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Health Club 203679 1.1000e-
003

9.9800e-
003

8.3900e-
003

6.0000e-
005

7.6000e-
004

0.0000 10.8691 10.8691 2.1000e-
004

2.0000e-
004

10.9337
Hotel 3.62611e
+006

0.0196 0.1778 0.1493 1.0700e-
003

0.0135 0.0135 0.0135 0.0135 0.0000 193.5030 193.5030 3.7100e- 003

0.0143 6.1000e-
003

9.0000e-
005

1.1600e-
003

0.0000 16.6045 16.6045 3.2000e-
004

3.0000e-
004

16.7032
Total 0.0237 0.2148 0.1745 1.3000e-
003

0.0164 0.0164 0.0164 0.0164 0.0000 234.7786 234.7786 4.5000e- 003

4.3000e-
003
236.1737
Mitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 28 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-243

5.3 Energy by Land Use - Electricity
Electricity
Use
Total CO2 CH4 N2O CO2e
Land Use kWh/yr MT/yr
General Light
Industry
79360 14.0741 1.1900e-
003

1.4000e-
004

14.1468
Golf Course 0 0.0000 0.0000 0.0000 0.0000
Health Club 62496 11.0834 9.4000e-
004

1.1000e-
004

11.1406
Hotel 1.06417e
+006
188.7260 0.0159 1.9300e-
003
189.6996
Parking Lot 31920 5.6609 4.8000e-
004

6.0000e-
005

5.6901
Recreational
Swimming Pool
0 0.0000 0.0000 0.0000 0.0000
Single Family
Housing
87611.3 15.5375 1.3100e-
003

1.6000e-
004

15.6176
Total 235.0818 0.0199 2.4000e-
003
236.2946
Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 29 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-244

Use Low VOC Paint - Residential Interior
Use Low VOC Paint - Residential Exterior
Use Low VOC Paint - Non-Residential Interior
Use Low VOC Paint - Non-Residential Exterior
No Hearths Installed

6.1 Mitigation Measures Area

6.0 Area Detail

5.3 Energy by Land Use - Electricity
Electricity
Use
Total CO2 CH4 N2O CO2e
Land Use kWh/yr MT/yr
General Light
Industry
75609.6 13.4090 1.1300e-
003

1.4000e-
004

13.4782
Golf Course 0 0.0000 0.0000 0.0000 0.0000
Health Club 59542.6 10.5596 8.9000e-
004

1.1000e-
004

10.6141
Hotel 1.01109e
+006
179.3124 0.0151 1.8300e-
003
180.2374
Parking Lot 26812.8 4.7551 4.0000e-
004

5.0000e-
005

4.7797
Recreational
Swimming Pool
0 0.0000 0.0000 0.0000 0.0000
Single Family
Housing
84779.7 15.0353 1.2700e-
003

1.5000e-
004

15.1129
Total 223.0714 0.0188 2.2800e-
003
224.2222
Mitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 30 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-245

Use Low VOC Cleaning Supplies
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Mitigated 0.3785 9.6000e-
004

0.0844 0.0000 4.6000e-
004

4.6000e-
004

0.0000 0.1388 0.1388 1.4000e-
004

0.0000 0.1423
Unmitigated 0.4107 7.5000e-
003

0.1206 1.5000e-
004

6.4400e-
003

0.7362 7.0701 7.8063 3.7200e-
003

1.3000e-
004

7.9370

6.2 Area by SubCategory
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
SubCategory tons/yr MT/yr
Architectural
Coating

0.0249 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Consumer
Products

0.3787 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Hearth 4.4100e-
003

6.5300e-
003

0.0363 1.5000e-
004

5.9800e-
003

0.7362 6.9313 7.6675 3.5700e-
003

1.3000e-
004

7.7947
Landscaping 2.7000e-
003

9.6000e-
004

0.0844 0.0000 4.6000e-
004

4.6000e-
004

0.0000 0.1388 0.1388 1.4000e-
004

0.0000 0.1423
Total 0.4107 7.4900e-
003

0.1206 1.5000e-
004

6.4400e-
003

0.7362 7.0701 7.8063 3.7100e-
003

1.3000e-
004

7.9370
Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 31 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-246

Install Low Flow Bathroom Faucet
Install Low Flow Kitchen Faucet
Install Low Flow Toilet
Install Low Flow Shower
Use Water Efficient Irrigation System

7.1 Mitigation Measures Water

7.0 Water Detail

0.0249 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Consumer
Products

0.3509 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Hearth 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Landscaping 2.7000e-
003

9.6000e-
004

0.0844 0.0000 4.6000e-
004

4.6000e-
004

0.0000 0.1388 0.1388 1.4000e-
004

0.0000 0.1423
Total 0.3785 9.6000e-
004

0.0844 0.0000 4.6000e-
004

4.6000e-
004

0.0000 0.1388 0.1388 1.4000e-
004

0.0000 0.1423
Mitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 32 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-247

Total CO2 CH4 N2O CO2e
Category MT/yr
Mitigated 20.1139 0.1262 3.1400e-
003

24.2029
Unmitigated 23.2788 0.1576 3.9000e-
003

28.3804
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 33 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-248

7.2 Water by Land Use
Indoor/Out
door Use
Total CO2 CH4 N2O CO2e
Land Use Mgal MT/yr
General Light
Industry

1.85 / 0 4.8590 0.0606 1.4700e-
003

6.8122
Golf Course 0 /

4.17018

8.2166 6.9000e-
004

8.0000e-
005

8.2589
Health Club 0.372602 /

0.228369

1.4286 0.0123 3.0000e-
004

1.8243
Hotel 1.0654 /

0.118378

3.0315 0.0349 8.5000e-
004

4.1576
Parking Lot 0 / 0 0.0000 0.0000 0.0000 0.0000
Recreational
Swimming Pool

0.774775 /

0.474862

2.9706 0.0255 6.2000e-
004

3.7934
Single Family
Housing

0.716694 /

0.451829

2.7726 0.0236 5.8000e-
004

3.5339
Total 23.2788 0.1576 3.9000e-
003

28.3804
Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 34 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-249

7.2 Water by Land Use
Indoor/Out
door Use
Total CO2 CH4 N2O CO2e
Land Use Mgal MT/yr
General Light
Industry

1.48 / 0 3.8872 0.0485 1.1700e-
003

5.4498
Golf Course 0 / 3.9158 7.7153 6.5000e-
004

8.0000e-
005

7.7551
Health Club 0.298081 /

0.214438

1.2054 9.8100e-
003

2.4000e-
004

1.5223
Hotel 0.852323 /

0.111157

2.4576 0.0280 6.8000e-
004

3.3587
Parking Lot 0 / 0 0.0000 0.0000 0.0000 0.0000
Recreational
Swimming Pool

0.61982 /

0.445896

2.5065 0.0204 5.0000e-
004

3.1654
Single Family
Housing

0.573355 /

0.424267

2.3418 0.0189 4.6000e-
004

2.9515
Total 20.1139 0.1262 3.1300e-
003

24.2028
Mitigated

8.1 Mitigation Measures Waste
Institute Recycling and Composting Services

8.0 Waste Detail
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 35 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-250

Total CO2 CH4 N2O CO2e
MT/yr
Mitigated 0.0000 0.0000 0.0000 0.0000
Unmitigated 31.5387 1.8639 0.0000 78.1358
Category/Year
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 36 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-251

8.2 Waste by Land Use
Waste
Disposed
Total CO2 CH4 N2O CO2e
Land Use tons MT/yr
General Light
Industry

9.92 2.0137 0.1190 0.0000 4.9888
Golf Course 3.26 0.6618 0.0391 0.0000 1.6395
Health Club 35.91 7.2894 0.4308 0.0000 18.0592
Hotel 23 4.6688 0.2759 0.0000 11.5667
Parking Lot 0 0.0000 0.0000 0.0000 0.0000
Recreational
Swimming Pool

74.67 15.1573 0.8958 0.0000 37.5517
Single Family
Housing

8.61 1.7478 0.1033 0.0000 4.3300
Total 31.5387 1.8639 0.0000 78.1358
Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 37 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-252

8.2 Waste by Land Use
Waste
Disposed
Total CO2 CH4 N2O CO2e
Land Use tons MT/yr
General Light
Industry

0.0000 0.0000 0.0000 0.0000
Golf Course 0.0000 0.0000 0.0000 0.0000
Health Club 0.0000 0.0000 0.0000 0.0000
Hotel 0.0000 0.0000 0.0000 0.0000
Parking Lot 0.0000 0.0000 0.0000 0.0000
Recreational
Swimming Pool

0.0000 0.0000 0.0000 0.0000
Single Family
Housing

0.0000 0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000
Mitigated

9.0 Operational Offroad
Equipment Type Number Hours/Day Days/Year Horse Power Load Factor Fuel Type

10.0 Stationary Equipment
Fire Pumps and Emergency Generators
Equipment Type Number Hours/Day Hours/Year Horse Power Load Factor Fuel Type CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 38 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-253

11.0 Vegetation
Boilers
Equipment Type Number Heat Input/Day Heat Input/Year Boiler Rating Fuel Type User Defined Equipment
Equipment Type Number
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:24 AMPage 39 of 39 Desert Island SP - Amendment - Riverside-Salton Sea County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-254

Desert Island SP - Amendment
Riverside-Salton Sea County, Summer
Project Characteristics - This model accounts for the proposed SP build-out condition with a tentative construction start date of May 1, 2023 for modeling purposes.

Demolition - This model accounts for 5,400 tons of debris associated with 2,700 CY of hardscape and building material removal at a conservative rate of 2 tons per CY.

Architectural Coating - SCAQMD Rule 1113 VOC Content Limits Apply as a Requirement

1.2 Other Project Characteristics
Urbanization
Climate Zone
Urban
15 Wind Speed (m/s)Precipitation Freq (Days)2.4 28

1.3 User Entered Comments & Non-Default Data

1.0 Project Characteristics
Utility Company Southern California Edison
2025Operational Year
CO2 Intensity
(lb/MWhr)
390.98 0.033CH4 Intensity
(lb/MWhr)

0.004N2O Intensity
(lb/MWhr)
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 1 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-255

Vehicle Trips - Consistent with the traffic assessment, the trip generating uses are the hotel rooms/keys, residential units, and golf course driving range facilities.

The trip rates are default to the CalEEMod parameters.

Woodstoves - SCAQMD Rule 445 is applied pertaining to wood burning.

Area Mitigation - SCAQMD Rule 1113 VOC Content Limits Apply Energy Mitigation - High efficiency lighting would be in the form of LED.

Waste Mitigation -
Trips and VMT -
Grading - Exported material (2,700 CY) corresponds to demolition of existing facilities.

Table Name Column Name Default Value New Value
tblArchitecturalCoating EF_Nonresidential_Exterior 250.00 50.00 tblArchitecturalCoating EF_Nonresidential_Interior 250.00 50.00 tblArchitecturalCoating EF_Parking 250.00 100.00
tblArchitecturalCoating EF_Residential_Exterior 250.00 50.00 tblArchitecturalCoating EF_Residential_Interior 250.00 50.00 tblAreaCoating Area_EF_Nonresidential_Exterior 250 50
tblAreaCoating Area_EF_Nonresidential_Interior 250 50
tblAreaCoating Area_EF_Parking 250 100
tblAreaCoating Area_EF_Residential_Exterior 250 50
tblAreaCoating Area_EF_Residential_Interior 250 50
tblAreaMitigation UseLowVOCPaintParkingCheck False True tblConstDustMitigation CleanPavedRoadPercentReduction 0 20 tblConstDustMitigation WaterUnpavedRoadMoistureContent 0 50 tblConstDustMitigation WaterUnpavedRoadVehicleSpeed 0 15 tblFireplaces NumberWood 1.10 0.00
tblGrading MaterialExported 0.00 2,700.00
tblLandUse Population 31.00 21.00
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 2 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-256

2.0 Emissions Summary
tblVehicleTrips ST_TR 1.99 0.00
tblVehicleTrips ST_TR 20.87 0.00
tblVehicleTrips ST_TR 9.10 0.00
tblVehicleTrips SU_TR 5.00 0.00
tblVehicleTrips SU_TR 26.73 0.00
tblVehicleTrips SU_TR 13.60 0.00
tblVehicleTrips WD_TR 4.96 0.00
tblVehicleTrips WD_TR 32.93 0.00
tblVehicleTrips WD_TR 28.82 0.00
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 3 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-257

2.1 Overall Construction (Maximum Daily Emission)
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Year lb/day lb/day
2023 3.3845 34.5517 28.6229 0.0636 20.4334 1.4253 21.7409 10.3098 1.3113 11.5141 0.0000 6,163.050 5 6,163.050
5 1.9482 0.3160 6,212.890
4 2024 25.1755 15.2572 20.7096 0.0449 1.4775 0.6313 2.1088 0.3983 0.5939 0.9922 0.0000 4,434.597 6 4,434.597
6 0.7167 0.1468 4,494.314
8 Maximum 25.1755 34.5517 28.6229 0.0636 20.4334 1.4253 21.7409 10.3098 1.3113 11.5141 0.0000 6,163.050 5 6,163.050
5 1.9482 0.3160 6,212.890
4 Unmitigated Construction
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Year lb/day lb/day
2023 3.3845 34.5517 28.6229 0.0636 6.7703 1.4253 8.0778 3.3273 1.3113 4.5317 0.0000 6,163.050 5 6,163.050
5 1.9482 0.3160 6,212.890
4 2024 25.1755 15.2572 20.7096 0.0449 1.2295 0.6313 1.8608 0.3374 0.5939 0.9314 0.0000 4,434.597 6 4,434.597
6 0.7167 0.1468 4,494.314
8 Maximum 25.1755 34.5517 28.6229 0.0636 6.7703 1.4253 8.0778 3.3273 1.3113 4.5317 0.0000 6,163.050 5 6,163.050
5 1.9482 0.3160 6,212.890
4 Mitigated Construction
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 4 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-258

ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio-CO2 Total CO2 CH4 N20 CO2e
Percent
Reduction

0.00 0.00 0.00 0.00 63.49 0.00 58.33 65.78 0.00 56.32 0.00 0.00 0.00 0.00 0.00 0.00 CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 5 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-259

2.2 Overall Operational
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Area 2.3491 0.1701 1.8214 3.6600e-
003

0.1510 0.1510 0.1510 0.1510 19.7921 188.0529 207.8450 0.0978 3.4200e- 003
211.3089
Energy 0.1300 1.1767 0.9559 7.0900e-
003

0.0898 0.0898 0.0898 0.0898 1,418.077
0 1,418.077
0 0.0272 0.0260 1,426.504
0 Mobile 1.0968 1.0673 7.7570 0.0160 1.6421 0.0128 1.6549 0.4381 0.0119 0.4500 1,668.079 9 1,668.079
9 0.0980 0.0864 1,696.283
6 Total 3.5759 2.4141 10.5343 0.0267 1.6421 0.2536 1.8957 0.4381 0.2528 0.6908 19.7921 3,274.209 8 3,294.001
9 0.2230 0.1158 3,334.096
4 Unmitigated Operational
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Area 2.0894 0.0107 0.9373 5.0000e-
005

5.1400e-
003

0.0000 1.6999 1.6999 1.7400e-
003

0.0000 1.7433
Energy 0.1300 1.1767 0.9559 7.0900e-
003

0.0898 0.0898 0.0898 0.0898 1,418.077
0 1,418.077
0 0.0272 0.0260 1,426.504
0 Mobile 1.0968 1.0673 7.7570 0.0160 1.6421 0.0128 1.6549 0.4381 0.0119 0.4500 1,668.079 9 1,668.079
9 0.0980 0.0864 1,696.283
6 Total 3.3162 2.2547 9.6502 0.0231 1.6421 0.1077 1.7498 0.4381 0.1069 0.5449 0.0000 3,087.856 9 3,087.856
9 0.1269 0.1124 3,124.530
9 Mitigated Operational
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 6 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-260

3.0 Construction Detail
Construction Phase
Phase
Number
Phase Name Phase Type Start Date End Date Num Days
Week
Num Days Phase Description
1 Demolition Demolition 5/1/2023 5/26/2023 5 20
2 Site Preparation Site Preparation 5/27/2023 6/9/2023 5 10 3 Grading Grading 6/10/2023 7/21/2023 5 30
4 Building Construction Building Construction 7/22/2023 9/13/2024 5 300 5 Paving Paving 9/14/2024 10/11/2024 5 20
6 Architectural Coating Architectural Coating 10/12/2024 11/8/2024 5 20 OffRoad Equipment
Phase Name Offroad Equipment Type Amount Usage Hours Horse Power Load Factor Demolition Concrete/Industrial Saws 1 8.00 81 0.73
Demolition Excavators 3 8.00 158 0.38
Demolition Rubber Tired Dozers 2 8.00 247 0.40
Site Preparation Rubber Tired Dozers 3 8.00 247 0.40
Site Preparation Tractors/Loaders/Backhoes 4 8.00 97 0.37 ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio-CO2 Total CO2 CH4 N20 CO2e
Percent
Reduction

7.26 6.60 8.39 13.51 0.00 57.53 7.70 0.00 57.71 21.12 100.00 5.69 6.26 43.09 2.95 6.29 Residential Indoor: 40,095; Residential Outdoor: 13,365; Non-Residential Indoor: 112,926; Non-Residential Outdoor: 37,642; Striped Parking Area: 5,472 (Architectural Coating – sqft)
Acres of Grading (Site Preparation Phase): 15
Acres of Grading (Grading Phase): 90
Acres of Paving: 2.05
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 7 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-261

3.1 Mitigation Measures Construction
Use Soil Stabilizer
Replace Ground Cover
Grading Excavators 2 8.00 158 0.38
Grading Graders 1 8.00 187 0.41
Grading Rubber Tired Dozers 1 8.00 247 0.40
Grading Tractors/Loaders/Backhoes 2 8.00 97 0.37
Building Construction Cranes 1 7.00 231 0.29
Building Construction Forklifts 3 8.00 89 0.20
Building Construction Generator Sets 1 8.00 84 0.74
Building Construction Tractors/Loaders/Backhoes 3 7.00 97 0.37 Building Construction Welders 1 8.00 46 0.45
Paving Pavers 2 8.00 130 0.42
Paving Paving Equipment 2 8.00 132 0.36
Paving Rollers 2 8.00 80 0.38
Architectural Coating Air Compressors 1 6.00 78 0.48
Grading Scrapers 2 8.00 367 0.48
Trips and VMT
Phase Name Offroad Equipment
Count
Worker Trip
Number
Vendor Trip
Number
Hauling Trip
Number
Worker Trip
Length
Vendor Trip
Length
Hauling Trip
Length
Worker Vehicle
Class
Vendor
Vehicle Class
Hauling
Vehicle Class
Demolition 6 15.00 0.00 534.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Site Preparation 7 18.00 0.00 338.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Grading 8 20.00 0.00 0.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Building Construction 9 143.00 56.00 0.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Paving 6 15.00 0.00 0.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Architectural Coating 1 29.00 0.00 0.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 8 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-262

3.2 Demolition - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 5.8134 0.0000 5.8134 0.8802 0.0000 0.8802 0.0000 0.0000 Off-Road 2.2691 21.4844 19.6434 0.0388 0.9975 0.9975 0.9280 0.9280 3,746.984 0 3,746.984
0 1.0494 3,773.218
3 Total 2.2691 21.4844 19.6434 0.0388 5.8134 0.9975 6.8109 0.8802 0.9280 1.8082 3,746.984 0 3,746.984
0 1.0494 3,773.218
3 Unmitigated Construction On-Site
Water Exposed Area
Water Unpaved Roads
Reduce Vehicle Speed on Unpaved Roads
Clean Paved Roads
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 9 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-263

3.2 Demolition - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0584 2.6664 0.7332 0.0147 0.4673 0.0322 0.4995 0.1281 0.0308 0.1589 1,566.744 5 1,566.744
5 0.0222 0.2469 1,640.869
8 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 0.0471 0.0271 0.4288 1.1100e-
003

0.1255 6.1000e-
004

0.1261 0.0333 5.6000e-
004

0.0339 113.6796 113.6796 2.9900e-
003

2.8600e-
003
114.6051
Total 0.1055 2.6935 1.1620 0.0158 0.5928 0.0328 0.6256 0.1614 0.0314 0.1928 1,680.424 0 1,680.424
0 0.0252 0.2497 1,755.475
0 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 1.8138 0.0000 1.8138 0.2746 0.0000 0.2746 0.0000 0.0000 Off-Road 2.2691 21.4844 19.6434 0.0388 0.9975 0.9975 0.9280 0.9280 0.0000 3,746.984 0 3,746.984
0 1.0494 3,773.218
3 Total 2.2691 21.4844 19.6434 0.0388 1.8138 0.9975 2.8113 0.2746 0.9280 1.2026 0.0000 3,746.984 0 3,746.984
0 1.0494 3,773.218
3 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 10 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-264

3.2 Demolition - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0584 2.6664 0.7332 0.0147 0.3967 0.0322 0.4289 0.1108 0.0308 0.1416 1,566.744 5 1,566.744
5 0.0222 0.2469 1,640.869
8 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 0.0471 0.0271 0.4288 1.1100e-
003

0.1037 6.1000e-
004

0.1043 0.0279 5.6000e-
004

0.0285 113.6796 113.6796 2.9900e-
003

2.8600e-
003
114.6051
Total 0.1055 2.6935 1.1620 0.0158 0.5004 0.0328 0.5332 0.1387 0.0314 0.1701 1,680.424 0 1,680.424
0 0.0252 0.2497 1,755.475
0 Mitigated Construction Off-Site

3.3 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 19.6912 0.0000 19.6912 10.1076 0.0000 10.1076 0.0000 0.0000 Off-Road 2.6595 27.5242 18.2443 0.0381 1.2660 1.2660 1.1647 1.1647 3,687.308 1 3,687.308
1 1.1926 3,717.121
9 Total 2.6595 27.5242 18.2443 0.0381 19.6912 1.2660 20.9572 10.1076 1.1647 11.2724 3,687.308 1 3,687.308
1 1.1926 3,717.121
9 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 11 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-265

3.3 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0740 3.3754 0.9282 0.0186 0.5916 0.0407 0.6323 0.1622 0.0390 0.2012 1,983.369 4 1,983.369
4 0.0281 0.3125 2,077.206
0 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 0.0565 0.0325 0.5146 1.3300e-
003

0.1506 7.3000e-
004

0.1513 0.0400 6.7000e-
004

0.0406 136.4155 136.4155 3.5900e-
003

3.4300e-
003
137.5262
Total 0.1305 3.4079 1.4428 0.0199 0.7422 0.0415 0.7836 0.2021 0.0397 0.2418 2,119.784 9 2,119.784
9 0.0317 0.3160 2,214.732
2 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 6.1437 0.0000 6.1437 3.1536 0.0000 3.1536 0.0000 0.0000 Off-Road 2.6595 27.5242 18.2443 0.0381 1.2660 1.2660 1.1647 1.1647 0.0000 3,687.308 1 3,687.308
1 1.1926 3,717.121
9 Total 2.6595 27.5242 18.2443 0.0381 6.1437 1.2660 7.4097 3.1536 1.1647 4.3183 0.0000 3,687.308 1 3,687.308
1 1.1926 3,717.121
9 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 12 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-266

3.3 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0740 3.3754 0.9282 0.0186 0.5022 0.0407 0.5429 0.1402 0.0390 0.1792 1,983.369 4 1,983.369
4 0.0281 0.3125 2,077.206
0 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 0.0565 0.0325 0.5146 1.3300e-
003

0.1244 7.3000e-
004

0.1252 0.0335 6.7000e-
004

0.0342 136.4155 136.4155 3.5900e-
003

3.4300e-
003
137.5262
Total 0.1305 3.4079 1.4428 0.0199 0.6266 0.0415 0.6681 0.1738 0.0397 0.2134 2,119.784 9 2,119.784
9 0.0317 0.3160 2,214.732
2 Mitigated Construction Off-Site

3.4 Grading - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 9.2036 0.0000 9.2036 3.6538 0.0000 3.6538 0.0000 0.0000 Off-Road 3.3217 34.5156 28.0512 0.0621 1.4245 1.4245 1.3105 1.3105 6,011.477 7 6,011.477
7 1.9442 6,060.083
6 Total 3.3217 34.5156 28.0512 0.0621 9.2036 1.4245 10.6281 3.6538 1.3105 4.9643 6,011.477 7 6,011.477
7 1.9442 6,060.083
6 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 13 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-267

3.4 Grading - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 0.0628 0.0361 0.5718 1.4800e-
003

0.1673 8.1000e-
004

0.1681 0.0444 7.4000e-
004

0.0451 151.5728 151.5728 3.9800e-
003

3.8100e-
003
152.8069
Total 0.0628 0.0361 0.5718 1.4800e-
003

0.1673 8.1000e-
004

0.1681 0.0444 7.4000e-
004

0.0451 151.5728 151.5728 3.9800e-
003

3.8100e-
003
152.8069
Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 2.8715 0.0000 2.8715 1.1400 0.0000 1.1400 0.0000 0.0000 Off-Road 3.3217 34.5156 28.0512 0.0621 1.4245 1.4245 1.3105 1.3105 0.0000 6,011.477 7 6,011.477
7 1.9442 6,060.083
6 Total 3.3217 34.5156 28.0512 0.0621 2.8715 1.4245 4.2960 1.1400 1.3105 2.4505 0.0000 6,011.477 7 6,011.477
7 1.9442 6,060.083
6 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 14 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-268

0.1383 8.1000e-
004

0.1391 0.0372 7.4000e-
004

0.0380 151.5728 151.5728 3.9800e-
003

3.8100e-
003
152.8069
Total 0.0628 0.0361 0.5718 1.4800e-
003

0.1383 8.1000e-
004

0.1391 0.0372 7.4000e-
004

0.0380 151.5728 151.5728 3.9800e-
003

3.8100e-
003
152.8069
Mitigated Construction Off-Site

3.5 Building Construction - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Total 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 15 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-269

3.5 Building Construction - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0587 1.5832 0.7178 7.8700e-
003

0.2810 0.0126 0.2936 0.0810 0.0120 0.0930 834.1701 834.1701 8.8500e- 003

0.1235 871.1950
Worker 0.4491 0.2581 4.0882 0.0106 1.1964 5.7800e-
003

1.2022 0.3174 5.3200e-
003

0.3227 1,083.745
2 1,083.745
2 0.0285 0.0272 1,092.569
0 Total 0.5077 1.8414 4.8060 0.0185 1.4775 0.0183 1.4958 0.3983 0.0173 0.4156 1,917.915 3 1,917.915
3 0.0373 0.1507 1,963.764
0 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 0.0000 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Total 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 0.0000 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 16 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-270

3.5 Building Construction - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0587 1.5832 0.7178 7.8700e-
003

0.2411 0.0126 0.2536 0.0711 0.0120 0.0832 834.1701 834.1701 8.8500e- 003

0.1235 871.1950
Worker 0.4491 0.2581 4.0882 0.0106 0.9885 5.7800e-
003

0.9943 0.2663 5.3200e-
003

0.2716 1,083.745
2 1,083.745
2 0.0285 0.0272 1,092.569
0 Total 0.5077 1.8414 4.8060 0.0185 1.2295 0.0183 1.2479 0.3374 0.0173 0.3548 1,917.915 3 1,917.915
3 0.0373 0.1507 1,963.764
0 Mitigated Construction Off-Site

3.5 Building Construction - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Total 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 17 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-271

3.5 Building Construction - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0578 1.5828 0.7102 7.7400e-
003

0.2810 0.0125 0.2935 0.0810 0.0119 0.0929 821.3058 821.3058 9.1400e- 003

0.1214 857.7174
Worker 0.4182 0.2306 3.8326 0.0103 1.1964 5.5200e-
003

1.2020 0.3174 5.0800e-
003

0.3224 1,057.592
9 1,057.592
9 0.0259 0.0253 1,065.789
7 Total 0.4760 1.8135 4.5428 0.0180 1.4775 0.0180 1.4955 0.3983 0.0170 0.4153 1,878.898 7 1,878.898
7 0.0350 0.1468 1,923.507
1 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 0.0000 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Total 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 0.0000 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 18 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-272

3.5 Building Construction - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0578 1.5828 0.7102 7.7400e-
003

0.2410 0.0125 0.2535 0.0711 0.0119 0.0831 821.3058 821.3058 9.1400e- 003

0.1214 857.7174
Worker 0.4182 0.2306 3.8326 0.0103 0.9885 5.5200e-
003

0.9940 0.2663 5.0800e-
003

0.2714 1,057.592
9 1,057.592
9 0.0259 0.0253 1,065.789
7 Total 0.4760 1.8135 4.5428 0.0180 1.2295 0.0180 1.2475 0.3374 0.0170 0.3545 1,878.898 7 1,878.898
7 0.0350 0.1468 1,923.507
1 Mitigated Construction Off-Site

3.6 Paving - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 0.9882 9.5246 14.6258 0.0228 0.4685 0.4685 0.4310 0.4310 2,207.547 2 2,207.547
2 0.7140 2,225.396
3 Paving 0.2686 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Total 1.2567 9.5246 14.6258 0.0228 0.4685 0.4685 0.4310 0.4310 2,207.547 2 2,207.547
2 0.7140 2,225.396
3 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 19 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-273

3.6 Paving - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 0.0439 0.0242 0.4020 1.0800e-
003

0.1255 5.8000e-
004

0.1261 0.0333 5.3000e-
004

0.0338 110.9363 110.9363 2.7100e-
003

2.6600e-
003
111.7961
Total 0.0439 0.0242 0.4020 1.0800e-
003

0.1255 5.8000e-
004

0.1261 0.0333 5.3000e-
004

0.0338 110.9363 110.9363 2.7100e-
003

2.6600e-
003
111.7961
Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 0.9882 9.5246 14.6258 0.0228 0.4685 0.4685 0.4310 0.4310 0.0000 2,207.547 2 2,207.547
2 0.7140 2,225.396
3 Paving 0.2686 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Total 1.2567 9.5246 14.6258 0.0228 0.4685 0.4685 0.4310 0.4310 0.0000 2,207.547 2 2,207.547
2 0.7140 2,225.396
3 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 20 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-274

0.1037 5.8000e-
004

0.1043 0.0279 5.3000e-
004

0.0285 110.9363 110.9363 2.7100e-
003

2.6600e-
003
111.7961
Total 0.0439 0.0242 0.4020 1.0800e-
003

0.1037 5.8000e-
004

0.1043 0.0279 5.3000e-
004

0.0285 110.9363 110.9363 2.7100e-
003

2.6600e-
003
111.7961
Mitigated Construction Off-Site

0.0609 0.0609 0.0609 0.0609 281.4481 281.4481 0.0159 281.8443 Total 25.0906 1.2188 1.8101 2.9700e-
003

0.0609 0.0609 0.0609 0.0609 281.4481 281.4481 0.0159 281.8443 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 21 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-275

3.7 Architectural Coating - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 0.0848 0.0468 0.7773 2.0800e-
003

0.2426 1.1200e-
003

0.2438 0.0644 1.0300e-
003

0.0654 214.4769 214.4769 5.2400e-
003

5.1400e-
003
216.1392
Total 0.0848 0.0468 0.7773 2.0800e-
003

0.2426 1.1200e-
003

0.2438 0.0644 1.0300e-
003

0.0654 214.4769 214.4769 5.2400e-
003

5.1400e-
003
216.1392
Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Archit. Coating 24.9099 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 0.1808 1.2188 1.8101 2.9700e-
003

0.0609 0.0609 0.0609 0.0609 0.0000 281.4481 281.4481 0.0159 281.8443 Total 25.0906 1.2188 1.8101 2.9700e-
003

0.0609 0.0609 0.0609 0.0609 0.0000 281.4481 281.4481 0.0159 281.8443 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 22 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-276

0.2005 1.1200e-
003

0.2016 0.0540 1.0300e-
003

0.0550 214.4769 214.4769 5.2400e-
003

5.1400e-
003
216.1392
Total 0.0848 0.0468 0.7773 2.0800e-
003

0.2005 1.1200e-
003

0.2016 0.0540 1.0300e-
003

0.0550 214.4769 214.4769 5.2400e-
003

5.1400e-
003
216.1392
Mitigated Construction Off-Site

4.0 Operational Detail - Mobile

4.1 Mitigation Measures Mobile
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 23 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-277

ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Mitigated 1.0968 1.0673 7.7570 0.0160 1.6421 0.0128 1.6549 0.4381 0.0119 0.4500 1,668.079 9 1,668.079
9 0.0980 0.0864 1,696.283
6 Unmitigated 1.0968 1.0673 7.7570 0.0160 1.6421 0.0128 1.6549 0.4381 0.0119 0.4500 1,668.079 9 1,668.079
9 0.0980 0.0864 1,696.283
6 4.2 Trip Summary Information

4.3 Trip Type Information
Average Daily Trip Rate Unmitigated Mitigated
Land Use Weekday Saturday Sunday Annual VMT Annual VMT
General Light Industry 0.00 0.00 0.00
Golf Course 13.09 13.09 13.09 21,130 21,130
Health Club 0.00 0.00 0.00
Hotel 351.12 343.98 249.90 498,439 498,439
Parking Lot 0.00 0.00 0.00
Recreational Swimming Pool 0.00 0.00 0.00
Single Family Housing 103.84 104.94 94.05 229,505 229,505 Total 468.05 462.01 357.04 749,074 749,074
Miles Trip %Trip Purpose %
Land Use H-W or C-W H-S or C-C H-O or C-NW H-W or C-W H-S or C-C H-O or C-NW Primary Diverted Pass-by General Light Industry 12.50 4.20 5.40 59.00 28.00 13.00 92 5 3 Golf Course 12.50 4.20 5.40 33.00 48.00 19.00 52 39 9
Health Club 12.50 4.20 5.40 16.90 64.10 19.00 52 39 9
Hotel 12.50 4.20 5.40 19.40 61.60 19.00 58 38 4
Parking Lot 12.50 4.20 5.40 0.00 0.00 0.00 0 0 0
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 24 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-278

Miles Trip %Trip Purpose %
Land Use H-W or C-W H-S or C-C H-O or C-NW H-W or C-W H-S or C-C H-O or C-NW Primary Diverted Pass-by Recreational Swimming Pool 12.50 4.20 5.40 33.00 48.00 19.00 52 39 9 Single Family Housing 11.00 3.50 4.50 40.20 19.20 40.60 86 11 3

5.0 Energy Detail

5.1 Mitigation Measures Energy
Install High Efficiency Lighting
Historical Energy Use: N
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 25 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-279

ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
NaturalGas
Mitigated

0.1300 1.1767 0.9559 7.0900e-
003

0.0898 0.0898 0.0898 0.0898 1,418.077
0 1,418.077
0 0.0272 0.0260 1,426.504
0 NaturalGas
Unmitigated

0.1300 1.1767 0.9559 7.0900e-
003

0.0898 0.0898 0.0898 0.0898 1,418.077
0 1,418.077
0 0.0272 0.0260 1,426.504
0 CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 26 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-280

5.2 Energy by Land Use - NaturalGas
NaturalGa
s Use
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Land Use kBTU/yr lb/day lb/day
General Light
Industry
708.603 7.6400e-
003

0.0695 0.0584 4.2000e-
004

5.2800e-
003

83.3650 83.3650 1.6000e-
003

1.5300e-
003

83.8604
Golf Course 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Health Club 558.025 6.0200e-
003

0.0547 0.0460 3.3000e-
004

4.1600e-
003

65.6500 65.6500 1.2600e-
003

1.2000e-
003

66.0401
Hotel 9934.54 0.1071 0.9740 0.8181 5.8400e-
003

0.0740 0.0740 0.0740 0.0740 1,168.769
9 1,168.769
9 0.0224 0.0214 1,175.715
3 Parking Lot 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Recreational
Swimming Pool
0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Single Family
Housing
852.483 9.1900e-
003

0.0786 0.0334 5.0000e-
004

6.3500e-
003

6.3500e-
003
100.2921 100.2921 1.9200e-
003

1.8400e-
003
100.8881
Total 0.1300 1.1767 0.9559 7.0900e-
003

0.0898 0.0898 0.0898 0.0898 1,418.077
0 1,418.077
0 0.0272 0.0260 1,426.503
9 Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 27 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-281

Use Low VOC Paint - Residential Interior
Use Low VOC Paint - Residential Exterior
Use Low VOC Paint - Non-Residential Interior
Use Low VOC Paint - Non-Residential Exterior
No Hearths Installed

6.1 Mitigation Measures Area

6.0 Area Detail

0.708603 7.6400e-
003

0.0695 0.0584 4.2000e-
004

5.2800e-
003

83.3650 83.3650 1.6000e-
003

1.5300e-
003

83.8604
Golf Course 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Health Club 0.558025 6.0200e-
003

0.0547 0.0460 3.3000e-
004

4.1600e-
003

65.6500 65.6500 1.2600e-
003

1.2000e-
003

66.0401
Hotel 9.93454 0.1071 0.9740 0.8181 5.8400e-
003

0.852483 9.1900e-
003

0.0786 0.0334 5.0000e-
004

6.3500e-
003

6.3500e-
003
100.2921 100.2921 1.9200e-
003

1.8400e-
003
100.8881
Total 0.1300 1.1767 0.9559 7.0900e-
003

0.0898 0.0898 0.0898 0.0898 1,418.077
0 1,418.077
0 0.0272 0.0260 1,426.503
9 Mitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 28 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-282

Use Low VOC Cleaning Supplies
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Mitigated 2.0894 0.0107 0.9373 5.0000e-
005

5.1400e-
003

0.0000 1.6999 1.6999 1.7400e-
003

0.0000 1.7433
Unmitigated 2.3491 0.1701 1.8214 3.6600e-
003

0.1510 0.1510 0.1510 0.1510 19.7921 188.0529 207.8450 0.0978 3.4200e- 003
211.3089

6.2 Area by SubCategory
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
SubCategory lb/day lb/day
Architectural
Coating

0.1365 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Consumer
Products

2.0750 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Hearth 0.1076 0.1594 0.8841 3.6100e-
003

0.1459 0.1459 0.1459 0.1459 19.7921 186.3529 206.1450 0.0961 3.4200e- 003
209.5655
Landscaping 0.0300 0.0107 0.9373 5.0000e-
005

5.1400e-
003

1.6999 1.6999 1.7400e-
003

1.7433
Total 2.3491 0.1701 1.8214 3.6600e-
003

0.1510 0.1510 0.1510 0.1510 19.7921 188.0529 207.8450 0.0978 3.4200e- 003
211.3089
Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 29 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-283

Install Low Flow Bathroom Faucet
Install Low Flow Kitchen Faucet
Install Low Flow Toilet
Install Low Flow Shower
Use Water Efficient Irrigation System

7.1 Mitigation Measures Water

7.0 Water Detail

0.1365 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Consumer
Products

1.9228 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Hearth 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Landscaping 0.0300 0.0107 0.9373 5.0000e-
005

5.1400e-
003

1.6999 1.6999 1.7400e-
003

1.7433
Total 2.0894 0.0107 0.9373 5.0000e-
005

5.1400e-
003

0.0000 1.6999 1.6999 1.7400e-
003

0.0000 1.7433
Mitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 30 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-284

11.0 Vegetation

8.1 Mitigation Measures Waste
Institute Recycling and Composting Services

8.0 Waste Detail

9.0 Operational Offroad
Equipment Type Number Hours/Day Days/Year Horse Power Load Factor Fuel Type

10.0 Stationary Equipment
Fire Pumps and Emergency Generators
Equipment Type Number Hours/Day Hours/Year Horse Power Load Factor Fuel Type Boilers
Equipment Type Number Heat Input/Day Heat Input/Year Boiler Rating Fuel Type User Defined Equipment
Equipment Type Number
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:25 AMPage 31 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-285

Desert Island SP - Amendment
Riverside-Salton Sea County, Winter
Project Characteristics - This model accounts for the proposed SP build-out condition with a tentative construction start date of May 1, 2023 for modeling purposes.

Demolition - This model accounts for 5,400 tons of debris associated with 2,700 CY of hardscape and building material removal at a conservative rate of 2 tons per CY.

Architectural Coating - SCAQMD Rule 1113 VOC Content Limits Apply as a Requirement

1.2 Other Project Characteristics
Urbanization
Climate Zone
Urban
15 Wind Speed (m/s)Precipitation Freq (Days)2.4 28

1.3 User Entered Comments & Non-Default Data

1.0 Project Characteristics
Utility Company Southern California Edison
2025Operational Year
CO2 Intensity
(lb/MWhr)
390.98 0.033CH4 Intensity
(lb/MWhr)

0.004N2O Intensity
(lb/MWhr)
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 1 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-286

Vehicle Trips - Consistent with the traffic assessment, the trip generating uses are the hotel rooms/keys, residential units, and golf course driving range facilities.

The trip rates are default to the CalEEMod parameters.

Woodstoves - SCAQMD Rule 445 is applied pertaining to wood burning.

Area Mitigation - SCAQMD Rule 1113 VOC Content Limits Apply Energy Mitigation - High efficiency lighting would be in the form of LED.

Waste Mitigation -
Trips and VMT -
Grading - Exported material (2,700 CY) corresponds to demolition of existing facilities.

Table Name Column Name Default Value New Value
tblArchitecturalCoating EF_Nonresidential_Exterior 250.00 50.00 tblArchitecturalCoating EF_Nonresidential_Interior 250.00 50.00 tblArchitecturalCoating EF_Parking 250.00 100.00
tblArchitecturalCoating EF_Residential_Exterior 250.00 50.00 tblArchitecturalCoating EF_Residential_Interior 250.00 50.00 tblAreaCoating Area_EF_Nonresidential_Exterior 250 50
tblAreaCoating Area_EF_Nonresidential_Interior 250 50
tblAreaCoating Area_EF_Parking 250 100
tblAreaCoating Area_EF_Residential_Exterior 250 50
tblAreaCoating Area_EF_Residential_Interior 250 50
tblAreaMitigation UseLowVOCPaintParkingCheck False True tblConstDustMitigation CleanPavedRoadPercentReduction 0 20 tblConstDustMitigation WaterUnpavedRoadMoistureContent 0 50 tblConstDustMitigation WaterUnpavedRoadVehicleSpeed 0 15 tblFireplaces NumberWood 1.10 0.00
tblGrading MaterialExported 0.00 2,700.00
tblLandUse Population 31.00 21.00
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 2 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-287

2.0 Emissions Summary
tblVehicleTrips ST_TR 1.99 0.00
tblVehicleTrips ST_TR 20.87 0.00
tblVehicleTrips ST_TR 9.10 0.00
tblVehicleTrips SU_TR 5.00 0.00
tblVehicleTrips SU_TR 26.73 0.00
tblVehicleTrips SU_TR 13.60 0.00
tblVehicleTrips WD_TR 4.96 0.00
tblVehicleTrips WD_TR 32.93 0.00
tblVehicleTrips WD_TR 28.82 0.00
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 3 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-288

2.1 Overall Construction (Maximum Daily Emission)
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Year lb/day lb/day
2023 3.3792 34.5531 28.5229 0.0634 20.4334 1.4253 21.7409 10.3098 1.3113 11.5142 0.0000 6,148.883 4 6,148.883
4 1.9483 0.3165 6,198.752
5 2024 25.1684 15.3636 20.0671 0.0440 1.4775 0.6314 2.1088 0.3983 0.5940 0.9923 0.0000 4,338.477 4 4,338.477
4 0.7167 0.1478 4,398.525
4 Maximum 25.1684 34.5531 28.5229 0.0634 20.4334 1.4253 21.7409 10.3098 1.3113 11.5142 0.0000 6,148.883 4 6,148.883
4 1.9483 0.3165 6,198.752
5 Unmitigated Construction
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Year lb/day lb/day
2023 3.3792 34.5531 28.5229 0.0634 6.7703 1.4253 8.0778 3.3273 1.3113 4.5318 0.0000 6,148.883 4 6,148.883
4 1.9483 0.3165 6,198.752
5 2024 25.1684 15.3636 20.0671 0.0440 1.2295 0.6314 1.8609 0.3374 0.5940 0.9314 0.0000 4,338.477 4 4,338.477
4 0.7167 0.1478 4,398.525
4 Maximum 25.1684 34.5531 28.5229 0.0634 6.7703 1.4253 8.0778 3.3273 1.3113 4.5318 0.0000 6,148.883 4 6,148.883
4 1.9483 0.3165 6,198.752
5 Mitigated Construction
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 4 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-289

ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio-CO2 Total CO2 CH4 N20 CO2e
Percent
Reduction

0.00 0.00 0.00 0.00 63.49 0.00 58.33 65.78 0.00 56.32 0.00 0.00 0.00 0.00 0.00 0.00 CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 5 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-290

0.1510 0.1510 0.1510 0.1510 19.7921 188.0529 207.8450 0.0978 3.4200e- 003
211.3089
Energy 0.1300 1.1767 0.9559 7.0900e-
003

0.0898 0.0898 0.0898 0.0898 1,418.077
0 1,418.077
0 0.0272 0.0260 1,426.504
0 Mobile 0.8942 1.1325 7.1438 0.0149 1.6421 0.0128 1.6549 0.4381 0.0120 0.4500 1,552.676 0 1,552.676
0 0.1031 0.0884 1,581.581
9 Total 3.3732 2.4793 9.9211 0.0256 1.6421 0.2536 1.8957 0.4381 0.2528 0.6908 19.7921 3,158.805 9 3,178.597
9 0.2282 0.1178 3,219.394
7 Unmitigated Operational
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Area 2.0894 0.0107 0.9373 5.0000e-
005

5.1400e-
003

0.0000 1.6999 1.6999 1.7400e-
003

0.0000 1.7433
Energy 0.1300 1.1767 0.9559 7.0900e-
003

0.0898 0.0898 0.0898 0.0898 1,418.077
0 1,418.077
0 0.0272 0.0260 1,426.504
0 Mobile 0.8942 1.1325 7.1438 0.0149 1.6421 0.0128 1.6549 0.4381 0.0120 0.4500 1,552.676 0 1,552.676
0 0.1031 0.0884 1,581.581
9 Total 3.1135 2.3199 9.0370 0.0220 1.6421 0.1077 1.7498 0.4381 0.1069 0.5450 0.0000 2,972.452 9 2,972.452
9 0.1321 0.1144 3,009.829
2 Mitigated Operational
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 6 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-291

7.70 6.43 8.91 14.09 0.00 57.53 7.70 0.00 57.71 21.12 100.00 5.90 6.49 42.12 2.90 6.51 Residential Indoor: 40,095; Residential Outdoor: 13,365; Non-Residential Indoor: 112,926; Non-Residential Outdoor: 37,642; Striped Parking Area: 5,472 (Architectural Coating – sqft)
Acres of Grading (Site Preparation Phase): 15
Acres of Grading (Grading Phase): 90
Acres of Paving: 2.05
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 7 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-292

3.1 Mitigation Measures Construction
Use Soil Stabilizer
Replace Ground Cover
Grading Excavators 2 8.00 158 0.38
Grading Graders 1 8.00 187 0.41
Grading Rubber Tired Dozers 1 8.00 247 0.40
Grading Tractors/Loaders/Backhoes 2 8.00 97 0.37
Building Construction Cranes 1 7.00 231 0.29
Building Construction Forklifts 3 8.00 89 0.20
Building Construction Generator Sets 1 8.00 84 0.74
Building Construction Tractors/Loaders/Backhoes 3 7.00 97 0.37 Building Construction Welders 1 8.00 46 0.45
Paving Pavers 2 8.00 130 0.42
Paving Paving Equipment 2 8.00 132 0.36
Paving Rollers 2 8.00 80 0.38
Architectural Coating Air Compressors 1 6.00 78 0.48
Grading Scrapers 2 8.00 367 0.48
Trips and VMT
Phase Name Offroad Equipment
Count
Worker Trip
Number
Vendor Trip
Number
Hauling Trip
Number
Worker Trip
Length
Vendor Trip
Length
Hauling Trip
Length
Worker Vehicle
Class
Vendor
Vehicle Class
Hauling
Vehicle Class
Demolition 6 15.00 0.00 534.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Site Preparation 7 18.00 0.00 338.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Grading 8 20.00 0.00 0.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Building Construction 9 143.00 56.00 0.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Paving 6 15.00 0.00 0.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT Architectural Coating 1 29.00 0.00 0.00 11.00 5.40 20.00 LD_Mix HDT_Mix HHDT CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 8 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-293

3.2 Demolition - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 5.8134 0.0000 5.8134 0.8802 0.0000 0.8802 0.0000 0.0000 Off-Road 2.2691 21.4844 19.6434 0.0388 0.9975 0.9975 0.9280 0.9280 3,746.984 0 3,746.984
0 1.0494 3,773.218
3 Total 2.2691 21.4844 19.6434 0.0388 5.8134 0.9975 6.8109 0.8802 0.9280 1.8082 3,746.984 0 3,746.984
0 1.0494 3,773.218
3 Unmitigated Construction On-Site
Water Exposed Area
Water Unpaved Roads
Reduce Vehicle Speed on Unpaved Roads
Clean Paved Roads
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 9 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-294

3.2 Demolition - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0537 2.8252 0.7487 0.0147 0.4673 0.0322 0.4995 0.1281 0.0308 0.1589 1,569.194 7 1,569.194
7 0.0220 0.2473 1,643.429
9 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 0.0431 0.0281 0.3538 1.0100e-
003

0.1255 6.1000e-
004

0.1261 0.0333 5.6000e-
004

0.0339 103.0543 103.0543 3.0500e-
003

2.9200e-
003
104.0017
Total 0.0968 2.8533 1.1024 0.0157 0.5928 0.0328 0.6256 0.1614 0.0314 0.1928 1,672.249 0 1,672.249
0 0.0251 0.2502 1,747.431
5 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 1.8138 0.0000 1.8138 0.2746 0.0000 0.2746 0.0000 0.0000 Off-Road 2.2691 21.4844 19.6434 0.0388 0.9975 0.9975 0.9280 0.9280 0.0000 3,746.984 0 3,746.984
0 1.0494 3,773.218
3 Total 2.2691 21.4844 19.6434 0.0388 1.8138 0.9975 2.8113 0.2746 0.9280 1.2026 0.0000 3,746.984 0 3,746.984
0 1.0494 3,773.218
3 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 10 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-295

3.2 Demolition - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0537 2.8252 0.7487 0.0147 0.3967 0.0322 0.4289 0.1108 0.0308 0.1416 1,569.194 7 1,569.194
7 0.0220 0.2473 1,643.429
9 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 0.0431 0.0281 0.3538 1.0100e-
003

0.1037 6.1000e-
004

0.1043 0.0279 5.6000e-
004

0.0285 103.0543 103.0543 3.0500e-
003

2.9200e-
003
104.0017
Total 0.0968 2.8533 1.1024 0.0157 0.5004 0.0328 0.5332 0.1387 0.0314 0.1701 1,672.249 0 1,672.249
0 0.0251 0.2502 1,747.431
5 Mitigated Construction Off-Site

3.3 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 19.6912 0.0000 19.6912 10.1076 0.0000 10.1076 0.0000 0.0000 Off-Road 2.6595 27.5242 18.2443 0.0381 1.2660 1.2660 1.1647 1.1647 3,687.308 1 3,687.308
1 1.1926 3,717.121
9 Total 2.6595 27.5242 18.2443 0.0381 19.6912 1.2660 20.9572 10.1076 1.1647 11.2724 3,687.308 1 3,687.308
1 1.1926 3,717.121
9 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 11 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-296

3.3 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0680 3.5765 0.9477 0.0186 0.5916 0.0408 0.6324 0.1622 0.0390 0.2012 1,986.471 2 1,986.471
2 0.0278 0.3130 2,080.446
8 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 0.0517 0.0337 0.4245 1.2100e-
003

0.1506 7.3000e-
004

0.1513 0.0400 6.7000e-
004

0.0406 123.6651 123.6651 3.6600e-
003

3.5100e-
003
124.8020
Total 0.1197 3.6103 1.3723 0.0198 0.7422 0.0415 0.7837 0.2021 0.0397 0.2418 2,110.136 3 2,110.136
3 0.0315 0.3165 2,205.248
8 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 6.1437 0.0000 6.1437 3.1536 0.0000 3.1536 0.0000 0.0000 Off-Road 2.6595 27.5242 18.2443 0.0381 1.2660 1.2660 1.1647 1.1647 0.0000 3,687.308 1 3,687.308
1 1.1926 3,717.121
9 Total 2.6595 27.5242 18.2443 0.0381 6.1437 1.2660 7.4097 3.1536 1.1647 4.3183 0.0000 3,687.308 1 3,687.308
1 1.1926 3,717.121
9 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 12 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-297

3.3 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0680 3.5765 0.9477 0.0186 0.5022 0.0408 0.5430 0.1402 0.0390 0.1793 1,986.471 2 1,986.471
2 0.0278 0.3130 2,080.446
8 Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Worker 0.0517 0.0337 0.4245 1.2100e-
003

0.1244 7.3000e-
004

0.1252 0.0335 6.7000e-
004

0.0342 123.6651 123.6651 3.6600e-
003

3.5100e-
003
124.8020
Total 0.1197 3.6103 1.3723 0.0198 0.6266 0.0415 0.6681 0.1738 0.0397 0.2135 2,110.136 3 2,110.136
3 0.0315 0.3165 2,205.248
8 Mitigated Construction Off-Site

3.4 Grading - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 9.2036 0.0000 9.2036 3.6538 0.0000 3.6538 0.0000 0.0000 Off-Road 3.3217 34.5156 28.0512 0.0621 1.4245 1.4245 1.3105 1.3105 6,011.477 7 6,011.477
7 1.9442 6,060.083
6 Total 3.3217 34.5156 28.0512 0.0621 9.2036 1.4245 10.6281 3.6538 1.3105 4.9643 6,011.477 7 6,011.477
7 1.9442 6,060.083
6 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 13 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-298

0.1673 8.1000e-
004

0.1681 0.0444 7.4000e-
004

0.0451 137.4057 137.4057 4.0600e-
003

3.9000e-
003
138.6689
Total 0.0575 0.0375 0.4717 1.3400e-
003

0.1673 8.1000e-
004

0.1681 0.0444 7.4000e-
004

0.0451 137.4057 137.4057 4.0600e-
003

3.9000e-
003
138.6689
Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 2.8715 0.0000 2.8715 1.1400 0.0000 1.1400 0.0000 0.0000 Off-Road 3.3217 34.5156 28.0512 0.0621 1.4245 1.4245 1.3105 1.3105 0.0000 6,011.477 7 6,011.477
7 1.9442 6,060.083
6 Total 3.3217 34.5156 28.0512 0.0621 2.8715 1.4245 4.2960 1.1400 1.3105 2.4505 0.0000 6,011.477 7 6,011.477
7 1.9442 6,060.083
6 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 14 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-299

0.1383 8.1000e-
004

0.1391 0.0372 7.4000e-
004

0.0380 137.4057 137.4057 4.0600e-
003

3.9000e-
003
138.6689
Total 0.0575 0.0375 0.4717 1.3400e-
003

0.1383 8.1000e-
004

0.1391 0.0372 7.4000e-
004

0.0380 137.4057 137.4057 4.0600e-
003

3.9000e-
003
138.6689
Mitigated Construction Off-Site

3.5 Building Construction - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Total 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 15 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-300

3.5 Building Construction - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0539 1.6809 0.7436 7.8900e-
003

0.2810 0.0126 0.2936 0.0810 0.0121 0.0930 836.7457 836.7457 8.6500e- 003

0.1240 873.9115
Worker 0.4109 0.2679 3.3725 9.6000e-
003

1.1964 5.7800e-
003

1.2022 0.3174 5.3200e-
003

0.3227 982.4505 982.4505 0.0290 0.0279 991.4826
Total 0.4648 1.9488 4.1161 0.0175 1.4775 0.0184 1.4959 0.3983 0.0174 0.4157 1,819.196 2 1,819.196
2 0.0377 0.1519 1,865.394
1 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 0.0000 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Total 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 0.0000 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 16 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-301

3.5 Building Construction - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0539 1.6809 0.7436 7.8900e-
003

0.2411 0.0126 0.2537 0.0711 0.0121 0.0832 836.7457 836.7457 8.6500e- 003

0.1240 873.9115
Worker 0.4109 0.2679 3.3725 9.6000e-
003

0.9885 5.7800e-
003

0.9943 0.2663 5.3200e-
003

0.2716 982.4505 982.4505 0.0290 0.0279 991.4826
Total 0.4648 1.9488 4.1161 0.0175 1.2295 0.0184 1.2479 0.3374 0.0174 0.3548 1,819.196 2 1,819.196
2 0.0377 0.1519 1,865.394
1 Mitigated Construction Off-Site

3.5 Building Construction - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Total 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 17 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-302

3.5 Building Construction - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0531 1.6806 0.7358 7.7700e-
003

0.2810 0.0125 0.2936 0.0810 0.0120 0.0929 823.8593 823.8593 8.9300e- 003

0.1219 860.4089
Worker 0.3836 0.2392 3.1645 9.3000e-
003

1.1964 5.5200e-
003

1.2020 0.3174 5.0800e-
003

0.3224 958.9192 958.9192 0.0264 0.0259 967.3088
Total 0.4367 1.9199 3.9003 0.0171 1.4775 0.0181 1.4955 0.3983 0.0171 0.4154 1,782.778 5 1,782.778
5 0.0353 0.1478 1,827.717
8 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 0.0000 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Total 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 0.0000 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 18 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-303

3.5 Building Construction - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Vendor 0.0531 1.6806 0.7358 7.7700e-
003

0.2410 0.0125 0.2536 0.0711 0.0120 0.0831 823.8593 823.8593 8.9300e- 003

0.1219 860.4089
Worker 0.3836 0.2392 3.1645 9.3000e-
003

0.9885 5.5200e-
003

0.9940 0.2663 5.0800e-
003

0.2714 958.9192 958.9192 0.0264 0.0259 967.3088
Total 0.4367 1.9199 3.9003 0.0171 1.2295 0.0181 1.2476 0.3374 0.0171 0.3545 1,782.778 5 1,782.778
5 0.0353 0.1478 1,827.717
8 Mitigated Construction Off-Site

3.6 Paving - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 0.9882 9.5246 14.6258 0.0228 0.4685 0.4685 0.4310 0.4310 2,207.547 2 2,207.547
2 0.7140 2,225.396
3 Paving 0.2686 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Total 1.2567 9.5246 14.6258 0.0228 0.4685 0.4685 0.4310 0.4310 2,207.547 2 2,207.547
2 0.7140 2,225.396
3 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 19 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-304

0.1255 5.8000e-
004

0.1261 0.0333 5.3000e-
004

0.0338 100.5859 100.5859 2.7700e-
003

2.7200e-
003
101.4660
Total 0.0402 0.0251 0.3319 9.8000e-
004

0.1255 5.8000e-
004

0.1261 0.0333 5.3000e-
004

0.0338 100.5859 100.5859 2.7700e-
003

2.7200e-
003
101.4660
Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 0.9882 9.5246 14.6258 0.0228 0.4685 0.4685 0.4310 0.4310 0.0000 2,207.547 2 2,207.547
2 0.7140 2,225.396
3 Paving 0.2686 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Total 1.2567 9.5246 14.6258 0.0228 0.4685 0.4685 0.4310 0.4310 0.0000 2,207.547 2 2,207.547
2 0.7140 2,225.396
3 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 20 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-305

0.1037 5.8000e-
004

0.1043 0.0279 5.3000e-
004

0.0285 100.5859 100.5859 2.7700e-
003

2.7200e-
003
101.4660
Total 0.0402 0.0251 0.3319 9.8000e-
004

0.1037 5.8000e-
004

0.1043 0.0279 5.3000e-
004

0.0285 100.5859 100.5859 2.7700e-
003

2.7200e-
003
101.4660
Mitigated Construction Off-Site

0.0609 0.0609 0.0609 0.0609 281.4481 281.4481 0.0159 281.8443 Total 25.0906 1.2188 1.8101 2.9700e-
003

0.0609 0.0609 0.0609 0.0609 281.4481 281.4481 0.0159 281.8443 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 21 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-306

0.2426 1.1200e-
003

0.2438 0.0644 1.0300e-
003

0.0654 194.4661 194.4661 5.3600e-
003

5.2600e-
003
196.1675
Total 0.0778 0.0485 0.6418 1.8900e-
003

0.2426 1.1200e-
003

0.2438 0.0644 1.0300e-
003

0.0654 194.4661 194.4661 5.3600e-
003

5.2600e-
003
196.1675
Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Archit. Coating 24.9099 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 0.1808 1.2188 1.8101 2.9700e-
003

0.0609 0.0609 0.0609 0.0609 0.0000 281.4481 281.4481 0.0159 281.8443 Total 25.0906 1.2188 1.8101 2.9700e-
003

0.0609 0.0609 0.0609 0.0609 0.0000 281.4481 281.4481 0.0159 281.8443 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 22 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-307

0.2005 1.1200e-
003

0.2016 0.0540 1.0300e-
003

0.0550 194.4661 194.4661 5.3600e-
003

5.2600e-
003
196.1675
Total 0.0778 0.0485 0.6418 1.8900e-
003

0.2005 1.1200e-
003

0.2016 0.0540 1.0300e-
003

0.0550 194.4661 194.4661 5.3600e-
003

5.2600e-
003
196.1675
Mitigated Construction Off-Site

4.0 Operational Detail - Mobile

4.1 Mitigation Measures Mobile
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 23 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-308

ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Mitigated 0.8942 1.1325 7.1438 0.0149 1.6421 0.0128 1.6549 0.4381 0.0120 0.4500 1,552.676 0 1,552.676
0 0.1031 0.0884 1,581.581
9 Unmitigated 0.8942 1.1325 7.1438 0.0149 1.6421 0.0128 1.6549 0.4381 0.0120 0.4500 1,552.676 0 1,552.676
0 0.1031 0.0884 1,581.581
9 4.2 Trip Summary Information

4.3 Trip Type Information
Average Daily Trip Rate Unmitigated Mitigated
Land Use Weekday Saturday Sunday Annual VMT Annual VMT
General Light Industry 0.00 0.00 0.00
Golf Course 13.09 13.09 13.09 21,130 21,130
Health Club 0.00 0.00 0.00
Hotel 351.12 343.98 249.90 498,439 498,439
Parking Lot 0.00 0.00 0.00
Recreational Swimming Pool 0.00 0.00 0.00
Single Family Housing 103.84 104.94 94.05 229,505 229,505 Total 468.05 462.01 357.04 749,074 749,074
Miles Trip %Trip Purpose %
Land Use H-W or C-W H-S or C-C H-O or C-NW H-W or C-W H-S or C-C H-O or C-NW Primary Diverted Pass-by General Light Industry 12.50 4.20 5.40 59.00 28.00 13.00 92 5 3 Golf Course 12.50 4.20 5.40 33.00 48.00 19.00 52 39 9
Health Club 12.50 4.20 5.40 16.90 64.10 19.00 52 39 9
Hotel 12.50 4.20 5.40 19.40 61.60 19.00 58 38 4
Parking Lot 12.50 4.20 5.40 0.00 0.00 0.00 0 0 0
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 24 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-309

5.0 Energy Detail

5.1 Mitigation Measures Energy
Install High Efficiency Lighting
Historical Energy Use: N
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 25 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-310

ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
NaturalGas
Mitigated

0.1300 1.1767 0.9559 7.0900e-
003

0.0898 0.0898 0.0898 0.0898 1,418.077
0 1,418.077
0 0.0272 0.0260 1,426.504
0 NaturalGas
Unmitigated

0.1300 1.1767 0.9559 7.0900e-
003

0.0898 0.0898 0.0898 0.0898 1,418.077
0 1,418.077
0 0.0272 0.0260 1,426.504
0 CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 26 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-311

5.2 Energy by Land Use - NaturalGas
NaturalGa
s Use
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Land Use kBTU/yr lb/day lb/day
General Light
Industry
708.603 7.6400e-
003

0.0695 0.0584 4.2000e-
004

5.2800e-
003

83.3650 83.3650 1.6000e-
003

1.5300e-
003

83.8604
Golf Course 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Health Club 558.025 6.0200e-
003

0.0547 0.0460 3.3000e-
004

4.1600e-
003

65.6500 65.6500 1.2600e-
003

1.2000e-
003

66.0401
Hotel 9934.54 0.1071 0.9740 0.8181 5.8400e-
003

0.0786 0.0334 5.0000e-
004

6.3500e-
003

6.3500e-
003
100.2921 100.2921 1.9200e-
003

1.8400e-
003
100.8881
Total 0.1300 1.1767 0.9559 7.0900e-
003

0.0898 0.0898 0.0898 0.0898 1,418.077
0 1,418.077
0 0.0272 0.0260 1,426.503
9 Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 27 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-312

Use Low VOC Paint - Residential Interior
Use Low VOC Paint - Residential Exterior
Use Low VOC Paint - Non-Residential Interior
Use Low VOC Paint - Non-Residential Exterior
No Hearths Installed

6.1 Mitigation Measures Area

6.0 Area Detail

0.708603 7.6400e-
003

0.0695 0.0584 4.2000e-
004

5.2800e-
003

83.3650 83.3650 1.6000e-
003

1.5300e-
003

83.8604
Golf Course 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Health Club 0.558025 6.0200e-
003

0.0547 0.0460 3.3000e-
004

4.1600e-
003

65.6500 65.6500 1.2600e-
003

1.2000e-
003

66.0401
Hotel 9.93454 0.1071 0.9740 0.8181 5.8400e-
003

0.852483 9.1900e-
003

0.0786 0.0334 5.0000e-
004

6.3500e-
003

6.3500e-
003
100.2921 100.2921 1.9200e-
003

1.8400e-
003
100.8881
Total 0.1300 1.1767 0.9559 7.0900e-
003

0.0898 0.0898 0.0898 0.0898 1,418.077
0 1,418.077
0 0.0272 0.0260 1,426.503
9 Mitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 28 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-313

5.1400e-
003

0.0000 1.6999 1.6999 1.7400e-
003

0.0000 1.7433
Unmitigated 2.3491 0.1701 1.8214 3.6600e-
003

0.1510 0.1510 0.1510 0.1510 19.7921 188.0529 207.8450 0.0978 3.4200e- 003
211.3089

0.1365 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Consumer
Products

2.0750 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Hearth 0.1076 0.1594 0.8841 3.6100e-
003

0.1459 0.1459 0.1459 0.1459 19.7921 186.3529 206.1450 0.0961 3.4200e- 003
209.5655
Landscaping 0.0300 0.0107 0.9373 5.0000e-
005

5.1400e-
003

1.6999 1.6999 1.7400e-
003

1.7433
Total 2.3491 0.1701 1.8214 3.6600e-
003

0.1510 0.1510 0.1510 0.1510 19.7921 188.0529 207.8450 0.0978 3.4200e- 003
211.3089
Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 29 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-314

Install Low Flow Bathroom Faucet
Install Low Flow Kitchen Faucet
Install Low Flow Toilet
Install Low Flow Shower
Use Water Efficient Irrigation System

7.1 Mitigation Measures Water

7.0 Water Detail

0.1365 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Consumer
Products

1.9228 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Hearth 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Landscaping 0.0300 0.0107 0.9373 5.0000e-
005

5.1400e-
003

1.6999 1.6999 1.7400e-
003

1.7433
Total 2.0894 0.0107 0.9373 5.0000e-
005

5.1400e-
003

0.0000 1.6999 1.6999 1.7400e-
003

0.0000 1.7433
Mitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 30 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-315

11.0 Vegetation

8.1 Mitigation Measures Waste
Institute Recycling and Composting Services

8.0 Waste Detail

9.0 Operational Offroad
Equipment Type Number Hours/Day Days/Year Horse Power Load Factor Fuel Type

10.0 Stationary Equipment
Fire Pumps and Emergency Generators
Equipment Type Number Hours/Day Hours/Year Horse Power Load Factor Fuel Type Boilers
Equipment Type Number Heat Input/Day Heat Input/Year Boiler Rating Fuel Type User Defined Equipment
Equipment Type Number
CalEEMod Version: CalEEMod.2020.4.0 Date: 7/20/2022 11:26 AMPage 31 of 31 Desert Island SP - Amendment - Riverside-Salton Sea County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 6-316

DESERT ISLAND HOTEL

APPENDIX

Appendix B
Noise and Vibration Impact Analysis, Urban Crossroads,
Inc. May 2022.

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Desert Island Hotel
NOISE AND VIBRATION IMPACT ANALYSIS
CITY OF RANCHO MIRAGE

PREPARED BY:

William Maddux
[email protected]
(619) 778‐1971

MAY 26, 2022

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iii
TABLE OF CONTENTS
TABLE OF CONTENTS ........................................................................................................................... III APPENDICES ........................................................................................................................................ IV LIST OF EXHIBITS ................................................................................................................................. IV LIST OF TABLES .................................................................................................................................... V LIST OF ABBREVIATED TERMS ............................................................................................................. VI EXECUTIVE SUMMARY ......................................................................................................................... 1 1 INTRODUCTION ........................................................................................................................... 3

1.1 Site Location .................................................................................................................................. 3

1.2 Project Description ........................................................................................................................ 3 2 FUNDAMENTALS ......................................................................................................................... 7

2.1 Range of Noise .............................................................................................................................. 7

2.2 Noise Descriptors .......................................................................................................................... 8

2.3 Sound Propagation ........................................................................................................................ 8

2.4 Noise Control ................................................................................................................................ 9

2.5 Noise Barrier Attenuation ............................................................................................................. 9

2.6 Land Use Compatibility With Noise ............................................................................................ 10

2.7 Community Response to Noise ................................................................................................... 10

2.8 Vibration ..................................................................................................................................... 11 3 REGULATORY SETTING .............................................................................................................. 13

3.1 State of California Noise Requirements ...................................................................................... 13

3.2 City of Rancho Mirage General Plan Noise Element ................................................................... 14

3.3 Operational Noise Standards ...................................................................................................... 15

3.4 Construction Noise Standards..................................................................................................... 17

3.5 Vibration Standards .................................................................................................................... 17 4 SIGNIFICANCE CRITERIA ............................................................................................................ 19

4.1 Noise Level Increases (Threshold A) ........................................................................................... 19

4.2 Vibration (Threshold B) ............................................................................................................... 20

4.3 CEQA Guidelines Not Further Analyzed (Threshold C) ............................................................... 20

4.4 Significance Criteria Summary .................................................................................................... 20 5 EXISTING NOISE LEVEL MEASUREMENTS ................................................................................... 23

5.1 Measurement Procedure and Criteria ........................................................................................ 23

5.2 Noise Measurement Locations ................................................................................................... 23

5.3 Noise Measurement Results ....................................................................................................... 24 6 TRAFFIC NOISE METHODS AND PROCEDURES ............................................................................ 27

6.1 FHWA Traffic Noise Prediction Model ........................................................................................ 27 7 OFF‐SITE TRAFFIC NOISE ANALYSIS ............................................................................................ 31

7.1 Noise Contours ............................................................................................................................ 31

7.2 Existing Project Traffic Noise Level Increases ............................................................................. 35

7.3 Existing Plus Ambient Growth Project Traffic Noise Level Increases .......................................... 35

7.4 Existing Plus Ambient Growth Plus Cumulative Project Traffic Noise Level Increases ............... 35 8 RECEIVER LOCATIONS................................................................................................................ 39 9 OPERATIONAL NOISE IMPACTS ................................................................................................. 41 6-320

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9.1 Operational Noise Sources .......................................................................................................... 41

9.2 Reference Noise Levels ............................................................................................................... 41

9.3 CadnaA Noise Prediction Model ................................................................................................. 44

9.4 Project Operational Noise Levels ................................................................................................ 45

9.6 Project Operational Noise Level Increases ................................................................................. 46 10 CONSTRUCTION IMPACTS ......................................................................................................... 49

10.1 Construction Noise Levels ........................................................................................................... 49

10.2 Construction Reference Noise Levels ......................................................................................... 49

10.3 Construction Noise Analysis ........................................................................................................ 51

10.4 Construction Noise Level Compliance ........................................................................................ 52

10.5 Construction Vibration Analysis .................................................................................................. 53 11 REFERENCES .............................................................................................................................. 55 12 CERTIFICATION .......................................................................................................................... 57

APPENDICES
APPENDIX 3.1:  CITY OF RANCHO MIRAGE MUNICIPAL CODE
APPENDIX 5.1:  STUDY AREA PHOTOS
APPENDIX 5.2:  NOISE LEVEL MEASUREMENT WORKSHEETS
APPENDIX 7.1:  OFF‐SITE TRAFFIC NOISE LEVEL CALCULATIONS APPENDIX 9.1:  CADNAA OPERATIONAL NOISE MODEL INPUTS
APPENDIX 10.1:  CADNAA CONSTRUCTION NOISE MODEL INPUTS

LIST OF EXHIBITS
EXHIBIT 1‐A: LOCATION MAP .............................................................................................................. 4 EXHIBIT 1‐B: SITE PLAN........................................................................................................................ 5 EXHIBIT 2‐A: TYPICAL NOISE LEVELS .................................................................................................... 7 EXHIBIT 2‐B: NOISE LEVEL INCREASE PERCEPTION ............................................................................. 10 EXHIBIT 2‐C: TYPICAL LEVELS OF GROUND‐BORNE VIBRATION .......................................................... 12 EXHIBIT 3‐A: NOISE LEVEL AND LAND USE COMPATIBILITY ................................................................ 16 EXHIBIT 5‐A: NOISE MEASUREMENT LOCATIONS ............................................................................... 25 EXHIBIT 8‐A: RECEIVER LOCATIONS ................................................................................................... 40 EXHIBIT 9‐A: STATIONARY SOURCE NOISE LOCATIONS ...................................................................... 42 EXHIBIT 10‐A: TYPICAL CONSTRUCTION NOISE SOURCE LOCATIONS .................................................. 50

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LIST OF TABLES
TABLE ES‐1: SUMMARY OF CEQA SIGNIFICANCE FINDINGS .................................................................. 1 TABLE 3‐1: OPERATIONAL NOISE STANDARDS ................................................................................... 15 TABLE 4‐1: SIGNIFICANCE CRITERIA SUMMARY ................................................................................. 21 TABLE 5‐1: AMBIENT NOISE LEVEL MEASUREMENTS ......................................................................... 24 TABLE 6‐1: OFF‐SITE ROADWAY PARAMETERS................................................................................... 27 TABLE 6‐2: AVERAGE DAILY TRAFFIC VOLUMES ................................................................................. 28 TABLE 6‐3: TIME OF DAY VEHICLE SPLITS ........................................................................................... 29 TABLE 6‐4: TRAFFIC FLOW BY VEHICLE TYPE (VEHICLE MIX) ............................................................... 29 TABLE 7‐1: EXISTING WITHOUT PROJECT CONTOURS ........................................................................ 32 TABLE 7‐2: EXISTING WITH PROJECT CONTOURS ............................................................................... 32 TABLE 7‐3: EA WITHOUT PROJECT CONTOURS ................................................................................... 33 TABLE 7‐4: EA WITH PROJECT CONTOURS ......................................................................................... 33 TABLE 7‐5: EAC WITHOUR PROJECT CONTOURS ................................................................................ 34 TABLE 7‐6: EAC WITH PROJECT CONTOURS ....................................................................................... 34 TABLE 7‐7: EXISTING WITH PROJECT TRAFFIC NOISE LEVEL INCREASES .............................................. 36 TABLE 7‐8: E+A WITH PROJECT TRAFFIC NOISE LEVEL INCREASES ...................................................... 36 TABLE 7‐9: E+A+C WITH PROJECT TRAFFIC NOISE LEVEL INCREASES ................................................... 37 TABLE 9‐1: REFERENCE NOISE LEVEL MEASUREMENTS ....................................................................... 43 TABLE 9‐2: PROJECT OPERATIONAL NOISE LEVELS .............................................................................. 45 TABLE 9‐3: DAYTIME PROJECT STATIONARY SOURCE NOISE LEVEL INCREASES .................................. 47 TABLE 9‐4: EVENING PROJECT STATIONARY SOURCE NOISE LEVEL INCREASES ................................... 47 TABLE 9‐5: NIGHTTIME PROJECT STATIONARY SOURCE NOISE LEVEL INCREASES ............................... 48 TABLE 10‐1: CONSTRUCTION REFERENCE NOISE LEVELS .................................................................... 51 TABLE 10‐2: CONSTRUCTION EQUIPMENT NOISE LEVEL SUMMARY ................................................... 52 TABLE 10‐3: CONSTRUCTION NOISE LEVEL COMPLIANCE ................................................................... 52 TABLE 10‐4: VIBRATION SOURCE LEVELS FOR CONSTRUCTION EQUIPMENT ...................................... 53 TABLE 10‐5: PROJECT CONSTRUCTION VIBRATION LEVELS ................................................................. 54

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LIST OF ABBREVIATED TERMS
(1) Reference
ANSI American National Standards Institute
Calveno California Vehicle Noise
CEQA California Environmental Quality Act
CNEL Community Noise Equivalent Level
dBA A‐weighted decibels
EPA Environmental Protection Agency
FHWA Federal Highway Administration
FTA Federal Transit Administration
INCE Institute of Noise Control Engineering
Leq Equivalent continuous (average) sound level
Lmax Maximum level measured over the time interval
mph Miles per hour
PPV Peak Particle Velocity
Project Desert Island Hotel
REMEL Reference Energy Mean Emission Level
RMS Root‐mean‐square
VdB Vibration Decibels

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1 EXECUTIVE SUMMARY
Urban Crossroads, Inc. has prepared this noise study to determine the noise exposure and the necessary noise mitigation measures for the proposed Desert Island Hotel development (“Project”). The Project site is located south of Frank Sinatra Drive and adjacent to Island Drive in the City of Rancho Mirage. The Project proposes to develop a 42‐key boutique hotel (with tennis, pool, and yoga amenities), 11 private residences, and a golf training facility. This noise study has been prepared to satisfy applicable City of Rancho Mirage noise standards and significance criteria based on Appendix G of the California Environmental Quality Act (CEQA) Guidelines (1).

The results of this Noise and Vibration Impact Analysis are summarized below based on the significance criteria in Section 4 of this report consistent with Appendix G of the California Environmental Quality Act (CEQA) Guidelines. (1) Table ES‐1 shows the findings of significance for each potential noise and/or vibration impact under CEQA before and after any required mitigation measures.

TABLE ES‐1: SUMMARY OF CEQA SIGNIFICANCE FINDINGS
Analysis Report
Section
Significance Findings
Unmitigated Mitigated
Off‐Site Traffic Noise 7 Less Than Significant ‐
Operational Noise 9 Less Than Significant ‐
Construction Noise
10 Less Than Significant ‐
Construction Vibration Less Than Significant ‐

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3 1 INTRODUCTION
This noise analysis has been completed to determine the noise impacts associated with the development of the proposed Desert Island Hotel (“Project”). This noise study briefly describes the proposed Project, provides information regarding noise fundamentals, sets out the regulatory setting, presents the study methods and procedures for noise analysis, evaluates the future off‐site noise impacts, evaluates long‐term stationary‐source noise, and evaluated short‐ term construction noise and vibration impacts.

1.1 SITE LOCATION
The proposed Project is located south of Frank Sinatra Drive and adjacent to Island Drive in the City of Rancho Mirage, as shown on Exhibit 1‐A.

1.2 PROJECT DESCRIPTION
The Project is proposed to repurpose approximately 13.3 acres of the existing golf driving range and a portion of the existing golf course with new facilities to accommodate a 42‐key boutique hotel (with tennis, pool, and yoga amenities), 11 private residences, and a golf training facility.

The existing driving range will be removed to make room for the new facilities. The existing golf maintenance structure will be replaced by a new building along with an expanded parking lot east of the main entry. The existing clubhouse will remain and continue to provide services to golfers, Desert Island residents, and the general public, with occasional events for up to 300 persons. It is anticipated that events with more than 300 persons in the existing clubhouse building would require a Temporary Use Permit, accompanied by a parking and traffic management plan if necessary. The existing golf course will continue to operate as an 18‐hole facility with minor routing adjustments to 9th and 18th Fairways to accommodate the hotel.

Amenities which are complementary to the new hotel include a hotel pool, a small pool café, a tennis court for hotel guests, and a shaded yoga platform located on the island south of the lake accessed by foot from the existing bridge.

The new private duplex‐style condominium residences (11 units) will be managed and maintained by the hotel operator. When not in use by individual owners, these units will be made available for rental by the hotel operator.

The new golf training park will replace the current driving range. It will consist of an 18‐hole tournament putting green, short game training areas, and virtual golf simulator stations. In order to evaluate the potential increase in practice golf park activity which maybe higher than the existing driving range, the employment associated with golf practice activity is estimated to increase by 10 employees.
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4 EXHIBIT 1‐A: LOCATION MAP

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5 EXHIBIT 1‐B: SITE PLAN

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7 2 FUNDAMENTALS
Noise is simply defined as "unwanted sound." Sound becomes unwanted when it interferes with normal activities, when it causes actual physical harm or when it has adverse effects on health.

Noise is measured on a logarithmic scale of sound pressure level known as a decibel (dB). A‐ weighted decibels (dBA) approximate the subjective response of the human ear to broad frequency noise source by discriminating against very low and very high frequencies of the audible spectrum. They are adjusted to reflect only those frequencies which are audible to the human ear. Exhibit 2‐A presents a summary of the typical noise levels and their subjective loudness and effects that are described in more detail below.

EXHIBIT 2‐A: TYPICAL NOISE LEVELS
Source: Environmental Protection Agency Office of Noise Abatement and Control, Information on Levels of Environmental Noise Requisite to Protect Public Health and Welfare with an Adequate Margin of Safety (EPA/ONAC 550/9‐74‐004) March 1974.

2.1 RANGE OF NOISE
Since the range of intensities that the human ear can detect is so large, the scale frequently used to measure intensity is a scale based on multiples of 10, the logarithmic scale. The scale for measuring intensity is the decibel scale. Each interval of 10 decibels indicates a sound energy ten times greater than before, which is perceived by the human ear as being roughly twice as loud. (2) The most common sounds vary between 40 dBA (very quiet) to 100 dBA (very loud). Normal conversation at three feet is roughly at 60 dBA, while loud jet engine noises equate to 110 dBA 6-330

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8 at approximately 1,000 feet, which can cause serious discomfort. (3) Another important aspect of noise is the duration of the sound and the way it is described and distributed in time.

2.2 NOISE DESCRIPTORS
Environmental noise descriptors are generally based on averages, rather than instantaneous, noise levels. The most used metric is the equivalent level (Leq). Equivalent sound levels are not measured directly but are calculated from sound pressure levels typically measured in A‐ weighted decibels (dBA). The equivalent sound level (Leq) represents a steady state sound level containing the same total energy as a time varying signal over a given sample period and is commonly used to describe the “average” noise levels within the environment.

Peak hour or average noise levels, while useful, do not completely describe a given noise environment. Noise levels lower than peak hour may be disturbing if they occur during times when quiet is most desirable, namely evening and nighttime (sleeping) hours. To account for this, the Community Noise Equivalent Level (CNEL), representing a composite 24‐hour noise level is utilized. The CNEL is the weighted average of the intensity of a sound, with corrections for time of day, and averaged over 24 hours. The time‐of‐day corrections require the addition of 5 decibels to dBA Leq sound levels in the evening from 7:00 p.m. to 10:00 p.m., and the addition of 10 decibels to dBA Leq sound levels at night between 10:00 p.m. and 7:00 a.m. These additions are made to account for the noise sensitive time periods during the evening and night hours when noise can become more intrusive. CNEL does not represent the actual sound level heard at any time, but rather represents the total sound exposure. The City of Rancho Mirage relies on the 24‐hour CNEL level to assess land use compatibility with transportation related noise sources.

2.3 SOUND PROPAGATION
When sound propagates over a distance, it changes in level and frequency content. The way noise reduces with distance depends on the following factors.

2.3.1 GEOMETRIC SPREADING
Sound from a localized source (i.e., a stationary point source) propagates uniformly outward in a spherical pattern. The sound level attenuates (or decreases) at a rate of 6 dB for each doubling of distance from a point source. Highways consist of several localized noise sources on a defined path and hence can be treated as a line source, which approximates the effect of several point sources. Noise from a line source propagates outward in a cylindrical pattern, often referred to as cylindrical spreading. Sound levels attenuate at a rate of 3 dB for each doubling of distance from a line source. (2)

2.3.2 GROUND ABSORPTION
The propagation path of noise from a highway to a receiver is usually very close to the ground.

Noise attenuation from ground absorption and reflective wave canceling adds to the attenuation associated with geometric spreading. Traditionally, the excess attenuation has also been expressed in terms of attenuation per doubling of distance. This approximation is usually 6-331

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9 sufficiently accurate for distances of less than 200 ft. For acoustically hard sites (i.e., sites with a reflective surface between the source and the receiver, such as a parking lot or body of water), no excess ground attenuation is assumed. For acoustically absorptive or soft sites (i.e., those sites with an absorptive ground surface between the source and the receiver such as soft dirt, grass, or scattered bushes and trees), an excess ground attenuation value of 1.5 dB per doubling of distance is normally assumed. When added to the cylindrical spreading, the excess ground attenuation results in an overall drop‐off rate of 4.5 dB per doubling of distance from a line source. (4)

2.3.3 ATMOSPHERIC EFFECTS
Receivers located downwind from a source can be exposed to increased noise levels relative to calm conditions, whereas locations upwind can have lowered noise levels. Sound levels can be increased at large distances (e.g., more than 500 feet) due to atmospheric temperature inversion (i.e., increasing temperature with elevation). Other factors such as air temperature, humidity, and turbulence can also have significant effects. (2)

2.3.4 SHIELDING
A large object or barrier in the path between a noise source and a receiver can substantially attenuate noise levels at the receiver. The amount of attenuation provided by shielding depends on the size of the object and the frequency content of the noise source. Shielding by trees and other such vegetation typically only has an “out of sight, out of mind” effect. That is, the perception of noise impact tends to decrease when vegetation blocks the line‐of‐sight to nearby residents. However, for vegetation to provide a substantial, or even noticeable, noise reduction, the vegetation area must be at least 15 feet in height, 100 feet wide and dense enough to completely obstruct the line‐of‐sight between the source and the receiver. This size of vegetation may provide up to 5 dBA of noise reduction. The Federal Highway Administration (FHWA) does not consider the planting of vegetation to be a noise abatement measure. (5)

2.4 NOISE CONTROL
Noise control is the process of obtaining an acceptable noise environment for an observation point or receiver by controlling the noise source, transmission path, receiver, or all three. This concept is known as the source‐path‐receiver concept. In general, noise control measures can be applied to these three elements.

2.5 NOISE BARRIER ATTENUATION
Effective noise barriers can reduce noise levels by 10 to 15 dBA, cutting the loudness of traffic noise in half. A noise barrier is most effective when placed close to the noise source or receiver.

Noise barriers, however, do have limitations. For a noise barrier to work, it must block the line‐ of‐sight path of sound from the noise source.
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10 2.6 LAND USE COMPATIBILITY WITH NOISE
Some land uses are more tolerant of noise than others. For example, schools, hospitals, churches, and residences are more sensitive to noise intrusion than are commercial or industrial developments and related activities. As ambient noise levels affect the perceived amenity or livability of a development, so too can the mismanagement of noise impacts impair the economic health and growth potential of a community by reducing the area’s desirability as a place to live, shop and work. For this reason, land use compatibility with the noise environment is an important consideration in the planning and design process. The FHWA encourages State and Local government to regulate land development in such a way that noise‐sensitive land uses are either prohibited from being located adjacent to a highway, or that the developments are planned, designed, and constructed in such a way that noise impacts are minimized. (6)

2.7 COMMUNITY RESPONSE TO NOISE
Approximately sixteen percent of the population has a very low tolerance for noise and will object to any noise not of their making. Consequently, even in the quietest environment, some complaints may occur. Twenty to thirty percent of the population will not complain even in very severe noise environments. (7 pp. 8‐6) Thus, a variety of reactions can be expected from people exposed to any given noise environment.

Surveys have shown that community response to noise varies from no reaction to vigorous action for newly introduced noises averaging from 10 dB below existing to 25 dB above existing. (8) According to research originally published in the Noise Effects Handbook (7), the percentage of high annoyance ranges from approximately 0 percent at 45 dB or less, 10 percent are highly annoyed around 60 dB, and increases rapidly to approximately 70 percent being highly annoyed at approximately 85 dB or greater. Despite this variability in behavior on an individual level, the population can be expected to exhibit the following responses to changes in noise levels as shown on Exhibit 2‐B. A change of 3 dBA is considered barely perceptible, and changes of 5 dBA are considered readily perceptible. (4)
EXHIBIT 2‐B: NOISE LEVEL INCREASE PERCEPTION

012345678910
Just Perceptible
Barely Perceptible
Readily Perceptible
Twice as Loud
Noise Level Increase (dBA)
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11 2.8 VIBRATION
Per the Federal Transit Administration (FTA) Transit Noise Impact and Vibration Impact Assessment Manual (8) , vibration is the periodic oscillation of a medium or object. The rumbling sound caused by the vibration of room surfaces is called structure‐borne noise. Sources of ground‐borne vibrations include natural phenomena (e.g., earthquakes, volcanic eruptions, sea waves, landslides) or human‐made causes (e.g., explosions, machinery, traffic, trains, construction equipment). Vibration sources may be continuous, such as factory machinery, or transient, such as explosions. As is the case with airborne sound, ground‐borne vibrations may be described by amplitude and frequency.

There are several different methods that are used to quantify vibration. The peak particle velocity (PPV) is defined as the maximum instantaneous peak of the vibration signal. The PPV is most frequently used to describe vibration impacts to buildings but is not always suitable for evaluating human response (annoyance) because it takes some time for the human body to respond to vibration signals. Instead, the human body responds to average vibration amplitude often described as the root mean square (RMS). The RMS amplitude is defined as the average of the squared amplitude of the signal and is most frequently used to describe the effect of vibration on the human body. Decibel notation (VdB) is commonly used to measure RMS. Decibel notation (VdB) serves to reduce the range of numbers used to describe human response to vibration.

Typically, ground‐borne vibration generated by man‐made activities attenuates rapidly with distance from the source of the vibration. Sensitive receivers for vibration include structures (especially older masonry structures), people (especially residents, the elderly, and sick), and vibration‐sensitive equipment and/or activities.

The background vibration‐velocity level in residential areas is generally 50 VdB. Ground‐borne vibration is normally perceptible to humans at approximately 65 VdB. For most people, a vibration‐velocity level of 75 VdB is the approximate dividing line between barely perceptible and distinctly perceptible levels. Typical outdoor sources of perceptible ground‐borne vibration are construction equipment, steel‐wheeled trains, and traffic on rough roads. If a roadway is smooth, the ground‐borne vibration is rarely perceptible. The range of interest is from approximately 50 VdB, which is the typical background vibration‐velocity level, to 100 VdB, which is the general threshold where minor damage can occur in fragile buildings. Exhibit 2‐C illustrates common vibration sources and the human and structural response to ground‐borne vibration. 6-334

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12 EXHIBIT 2‐C: TYPICAL LEVELS OF GROUND‐BORNE VIBRATION

Source: Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual. 6-335

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13 3 REGULATORY SETTING
To limit population exposure to physically and/or psychologically damaging as well as intrusive noise levels, the federal government, the State of California, various county governments, and most municipalities in the state have established standards and ordinances to control noise. In most areas, automobile and truck traffic is the major source of environmental noise. Traffic activity generally produces an average sound level that remains constant with time. Air and rail traffic, and commercial and industrial activities are also major sources of noise in some areas.

Federal, state, and local agencies regulate different aspects of environmental noise. Federal and state agencies generally set noise standards for mobile sources such as aircraft and motor vehicles, while regulation of stationary sources is left to local agencies.

3.1 STATE OF CALIFORNIA NOISE REQUIREMENTS
The State of California regulates freeway noise, sets standards for sound transmission, provides occupational noise control criteria, identifies noise standards, and provides guidance for local land use compatibility. State law requires that each county and city adopt a General Plan that includes a Noise Element which is to be prepared per guidelines adopted by the Governor’s Office of Planning and Research (OPR). (9) The purpose of the Noise Element is to limit the exposure of the community to excessive noise levels. In addition, the California Environmental Quality Act (CEQA) requires that all known environmental effects of a project be analyzed, including environmental noise impacts.

3.1.1 RESIDENTIAL CONSTRUCTION
The State of California’s noise insulation standards for all residential units are codified in the California Code of Regulations (CCR), Title 24, Building Standards Administrative Code, Section 1206 to 1207.11.2. These noise standards are applied to new construction that contains dwelling units or sleeping units, such as residential and hotel or motel uses, in California for controlling interior noise levels resulting from exterior noise sources. For new buildings, the acceptable interior noise limit is 45 dBA CNEL in habitable rooms (10).

3.1.2 NON‐RESIDENTIAL CONSTRUCTION
The State of California’s Green Building Standards Code contains mandatory measures for non‐ residential building construction in Section 5.507 on Environmental Comfort (11). These noise standards are applied to new construction in California for controlling interior noise levels resulting from exterior noise sources. The regulations specify that acoustical studies must be prepared when non‐residential structures are developed in areas where the exterior noise levels exceed 65 dBA CNEL, such as within a noise contour of an airport, freeway, railroad, and other noise source. If the development falls within an airport or freeway 65 dBA CNEL noise contour, buildings shall be construction to provide an interior noise level environment attributable to exterior sources that does not exceed an hourly equivalent level of 50 dBA Leq in occupied areas during any hour of operation.
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14 3.2 CITY OF RANCHO MIRAGE GENERAL PLAN NOISE ELEMENT The City of Rancho Mirage has adopted a Noise Element of the General Plan (2017) to control and abate environmental noise, and to protect the citizens of and visitors to the City of Rancho Mirage from excessive exposure to noise. The Noise Element is intended to help align the community’s various land uses with the existing and future noise environment and thus ensure that any negative effects of noise are minimized or completely avoided.

The noise criteria identified in the City of Rancho Mirage Noise Element are guidelines to evaluate the land use compatibility of transportation related noise. To assist the City in the planning compatible uses, a range of exterior noise thresholds for various land uses have been developed.

Particularly sensitive land uses include residences, schools, libraries, churches, hospitals and nursing homes, and destination resort areas. In addition, parks, golf courses, and other outdoor activity areas can be sensitive to noise disturbances. Less sensitive land uses include commercial uses, conventional hotels and motels, and playgrounds. Least sensitive to noise are heavy commercial uses, transportation, communication, and utility land uses.

To protect noise sensitive land uses, and minimize the effects of excessive and nuisance noise, the City of Rancho Mirage General Plan Noise Element has outlined the following noise policies with the goal (Goal N 1) of a noise environment providing peace and quiet that complements and is consistent with Rancho Mirage’s resort residential character:

Policy N 1.1: Land use patterns, associated trafﬁc and its distribution, and individual developments shall be assessed for their potential to generate adverse and incompatible noise impacts.

Noise exceeding normally acceptable levels shall be appropriately mitigated.

Policy N 1.2 Noise sensitive land uses, including residences, resorts, community open space, schools, libraries, churches, hospitals, and convalescent homes, shall be protected from high noise levels emitted by both existing and future noise sources.

Policy N 1.3 Project designs shall be required to include measures that assure that interior noise levels for residential development do not exceed 45 dBA CNEL.

Policy N 1.4 Land uses allowed adjacent to Rancho Mirage’s major arterial roads and highways, or the Southern Pacific Railroad/I‐10 corridor, should generally be limited to those that are compatible with higher noise levels to maximize noise‐related land use compatibility.

Policy N 1.5 Develop and maintain a circulation plan that is consistent with the resort residential character of Rancho Mirage, avoids impacts to existing and planned sensitive receptors/uses, and provides ﬁxed routes for existing and future truck trafﬁc.

The Noise Level and Land Use Compatibility matrix in the Noise Element shown on Exhibit 3‐A provides guidelines to evaluate the acceptability of the transportation related noise level impacts. Single‐family residential land uses are considered normally acceptable with exterior noise levels below 60 dBA CNEL and conditionally acceptable with noise levels below 70 dBA CNEL. Multi‐family residential land uses are considered normally acceptable with exterior noise levels below 65 dBA CNEL and conditionally acceptable with noise levels below 70 dBA CNEL. For 6-337

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15 conditionally acceptable land use, new construction or development undertaken only after a detailed analysis of the noise reduction requirements is made and necessary noise insulation features are included in the design. Conventional construction, but with closed windows and fresh air supply system or air conditioning will normally suffice. Outdoor environment will seem noisy.

3.3 OPERATIONAL NOISE STANDARDS
To analyze noise impacts originating from a designated fixed location or private property such as the Desert Island Hotel Project, stationary‐source (operational) noise such as the expected outdoor recreational and training activities, trash enclosure activities, roof‐top air conditioning units, ground mounted air conditioning units, packaged terminal air conditioning units, swimming pools, and parking lot activities are typically evaluated against standards established under a jurisdiction’s Municipal Code. The City of Rancho Mirage Municipal Code noise standards are provided in Appendix 3.1. The City of Rancho Mirage Municipal Code (RMMC), Chapter 8.45 establishes the noise level standards for stationary noise sources. The Project’s land use will potentially impact nearby noise‐sensitive uses in the Project study area. For nearby noise‐ sensitive residential land uses in the Project study area, Section 8.45.030 identifies the base exterior noise level standard of 55 dBA Leq during the daytime hours (7:00 a.m. to 6:00 p.m.), 50 dBA Leq during the evening hours (6:00 p.m. to 10:00 p.m.) and 45 dBA Leq during the nighttime hours (10:00 p.m. to 7:00 a.m.). (12) Table 3‐1 provides a summary of the City of Rancho Mirage operational exterior noise level standards for all land use types.

TABLE 3‐1: OPERATIONAL NOISE STANDARDS
Land
Use1 Zone2 Time
Period
Exterior Noise
Level Standards
(dBA Leq)3
Residential
(Low Density)
R‐E, H‐R,
R‐L‐2, R‐L‐3
Daytime (7:00 a.m. to 6:00 p.m.) 55
Evening (6:00 p.m. to 10:00 p.m.) 50
Nighttime (10:00 p.m. to 7:00 a.m.) 45
Residential
(Medium and High Density,
Hospital, Open Space)
OS, R‐M,
R‐H, MHP
Daytime (7:00 a.m. to 6:00 p.m.) 60
Evening (6:00 p.m. to 10:00 p.m.) 55
Nighttime (10:00 p.m. to 7:00 a.m.) 50
Commercial Office, Resort
Commercial, Mixed Use,
Institutional
O, P, Rs‐H,
M‐U
Daytime (7:00 a.m. to 6:00 p.m.) 65
Evening (6:00 p.m. to 10:00 p.m.) 60
Nighttime (10:00 p.m. to 7:00 a.m.) 55
Commercial Neighborhood,
General Commercial, Commercial
Recreation, Light Industrial
C‐N, C‐G, I‐
L
Daytime (7:00 a.m. to 6:00 p.m.) 70
Evening (6:00 p.m. to 10:00 p.m.) 65
Nighttime (10:00 p.m. to 7:00 a.m.) 60
1 City of Rancho Mirage Municipal Code, Section 8.45.030 Exterior noise level limits (Appendix 3.1). 2 City of Rancho Mirage Land Use and Zoning Map
3 Leq represents a steady state sound level containing the same total energy as a time varying signal over a given sample period.

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16 EXHIBIT 3‐A: NOISE LEVEL AND LAND USE COMPATIBILITY

Source: City of Rancho Mirage General Plan Noise Element (2017) Exhibit 20

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17 3.4 CONSTRUCTION NOISE STANDARDS
To analyze noise impacts originating from the construction of Desert Island Hotel, noise from construction activities is typically evaluated against standards established under a City’s Municipal Code. To control noise impacts associated with the construction of the proposed Project, the City has established limits to the hours of operation. The RMMC Section

15.04.030[A][11] indicates that construction, shall be limited to the hours of 7:00 a.m. and 7:00 p.m. with no activity on Sundays and holidays (13). The City recognizes that construction noise is difficult to control and restricts allowable hours for this intrusion. Still, construction, even when restricted to within these hours, presents a nuisance value when conducted in proximity to sensitive receptors (14). However, neither the City of Rancho Mirage General Plan nor Municipal Code establish numeric maximum acceptable construction source noise levels at potentially affected receivers. Therefore, a numerical construction threshold based on Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual is used for analysis of daytime construction impacts, as discussed below.

According to the FTA, local noise ordinances are typically not very useful in evaluating construction noise. They usually relate to nuisance and hours of allowed activity, and sometimes specify limits in terms of maximum levels, but are generally not practical for assessing the impact of a construction project. Project construction noise criteria should account for the existing noise environment, the absolute noise levels during construction activities, the duration of the construction, and the adjacent land use. Due to the lack of standardized construction noise thresholds, the FTA provides guidelines that can be considered reasonable criteria for construction noise assessment. The FTA considers a daytime exterior construction noise level of 80 dBA Leq as a reasonable threshold for noise sensitive residential land use (8 p. 179).

3.5 VIBRATION STANDARDS
Construction activity can result in varying degrees of ground‐borne vibration, depending on the equipment and methods used, distance to the affected structures and soil type. Construction vibration is generally associated with pile driving and rock blasting. Other construction equipment such as air compressors, light trucks, hydraulic loaders, etc., generates little or no ground vibration (8).

To analyze vibration impacts associated with the Desert Island Hotel, vibration‐generating activities are appropriately evaluated against standards established under a City’s Municipal Code if such standards exist. While Section 17.18.080 of the RMMC requires that no vibration associated with any use shall be allowed which is discernable beyond the boundary line of the subject property, the City of Rancho Mirage does not identify specific construction vibration level limits. Therefore, for analysis purposes, the Caltrans Transportation and Construction Vibration Guidance Manual, (15 p. 38) Table 19, vibration damage are used in this noise study to assess potential temporary construction‐related impacts at adjacent building locations. The nearest noise sensitive buildings adjacent to the Project site can best be described as “older residential structures” with a maximum acceptable continuous vibration threshold of 0.3 PPV (in/sec). 6-340

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19 4 SIGNIFICANCE CRITERIA
The following significance criteria are based on currently adopted guidance provided by Appendix G of the California Environmental Quality Act (CEQA) Guidelines (1). For the purposes of this report, impacts would be potentially significant if the Project results in or causes:

A. Generation of a substantial temporary or permanent increase in ambient noise levels in the vicinity of the project in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies?
B. Generation of excessive ground‐borne vibration or ground‐borne noise levels? C. For a project located within the vicinity of a private airstrip or an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels?

4.1 NOISE LEVEL INCREASES (THRESHOLD A)
Noise level increases resulting from the Project are evaluated based on the Appendix G CEQA Guidelines described above at the closest sensitive receiver locations. Under CEQA, consideration must be given to the magnitude of the increase, the existing ambient noise levels, and the location of noise‐sensitive receivers to determine if a noise increase represents a significant adverse environmental impact. This approach recognizes that there is no single noise increase that renders the noise impact significant. (16) This is primarily because of the wide variation in individual thresholds of annoyance and differing individual experiences with noise.

Thus, an important way of determining a person’s subjective reaction to a new noise is the comparison of it to the existing environment to which one has adapted—the so‐called ambient environment.

In general, the more a new noise exceeds the previously existing ambient noise level, the less acceptable the new noise will typically be judged. The Federal Interagency Committee on Noise (FICON) (17) developed guidance to be used for the assessment of project‐generated increases in noise levels that consider the ambient noise level. The FICON recommendations are based on studies that relate aircraft noise levels to the percentage of persons highly annoyed by aircraft noise. Although the FICON recommendations were specifically developed to assess aircraft noise impacts, these recommendations are often used in environmental noise impact assessments involving the use of cumulative noise exposure metrics, such as the average‐daily noise level (CNEL) and equivalent continuous noise level (Leq). The FICON guidance provides an established source of criteria to assess the impacts of substantial temporary or permanent increase in ambient noise levels. Based on the FICON criteria, the amount to which a given noise level increase is considered acceptable is reduced when the without Project noise levels are already shown to exceed certain land‐use specific exterior noise level criteria. The specific levels are based on typical responses to noise level increases of 5 dBA or readily perceptible, 3 dBA or barely perceptible, and 1.5 dBA depending on the underlying without Project noise levels for noise‐ sensitive uses. These levels of increases and their perceived acceptance are consistent with guidance provided by both the Federal Highway Administration (4 p. 9) and Caltrans (18 p. 2_48). 6-342

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20 4.2 VIBRATION (THRESHOLD B)
As described in Section 3.5, the vibration impacts originating from the construction of the Desert Island Hotel, vibration‐generating activities are appropriately evaluated using the Caltrans vibration damage thresholds to assess potential temporary construction‐related impacts at adjacent building locations. The nearest noise sensitive buildings adjacent to the Project site can best be described as “older residential structures” with a maximum acceptable continuous vibration threshold of 0.3 PPV (in/sec).

4.3 CEQA GUIDELINES NOT FURTHER ANALYZED (THRESHOLD C)
CEQA Noise Threshold C applies when there are nearby public and private airports and/or air strips and focuses on land use compatibility of the Project to nearby airports and airstrips. The Project site is not located within two miles of an airport or airstrip. The closest airport is the Palm Springs International Airport located approximately 5.7 miles northwest of the Project site. As such, the Project site would not be exposed to excessive noise levels from airport operations, and therefore, impacts are considered less than significant, and no further noise analysis is conducted in relation to Appendix G to the CEQA Guidelines, Noise Threshold C.

4.4 SIGNIFICANCE CRITERIA SUMMARY
Noise impacts shall be considered significant if any of the following occur as a direct result of the proposed development. Table 4‐1 shows the significance criteria summary matrix that includes the allowable criteria used to identify potentially significant incremental noise level increases.

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21 TABLE 4‐1: SIGNIFICANCE CRITERIA SUMMARY
Analysis Receiving
Land Use Condition(s) Significance Criteria
Off‐Site
Traffic
Noise‐
Sensitive1
If ambient is 65 dBA CNEL ≥ 1.5 dBA CNEL Project increase Non‐Noise‐
Sensitive1,2
If ambient is 70 dBA CNEL ≥ 3 dBA CNEL Project increase Operational All3 Exterior Noise Level Standards See Table 3‐1 Construction
Noise‐
Sensitive
Shall be limited to the hours of 7:00 a.m. and 7:00 p.m. with no activity on Sundays and holidays4
Noise Level Threshold5 80 dBA Leq
All Vibration Level Threshold6 0.3 PPV (in/sec)
1 FICON, 1992.
2 City of Rancho Mirage General Plan Noise Element.
3 City of Rancho Mirage General Plan Municipal Code, Section 8.45.030 4 City of Rancho Mirage General Plan Municipal Code, Section15.04.030[A][10]. 5 Federal Transit Administration, Transit Noise and Vibration Impact Assessment Manual. 6 Caltrans Transportation and Construction Vibration Manual, April 2020 Table 19. "Daytime" = 7:00 a.m. to 10:00 p.m.; "Nighttime" = 10:00 p.m. to 7:00 a.m.

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23 5 EXISTING NOISE LEVEL MEASUREMENTS
To assess the existing noise level environment, 24‐hour noise level measurements were taken at six locations in the Project study area. The receiver locations were selected to describe and document the existing noise environment within the Project study area. Exhibit 5‐A provides the boundaries of the Project study area and the noise level measurement locations. To fully describe the existing noise conditions, noise level measurements were collected by Urban Crossroads, Inc. on Tuesday, April 5, 2022. Appendix 5.1 includes study area photos.

5.1 MEASUREMENT PROCEDURE AND CRITERIA
To describe the existing noise environment, the hourly noise levels were measured during typical weekday conditions over a 24‐hour period. By collecting individual hourly noise level measurements, it is possible to describe the equivalent daytime and nighttime hourly noise levels. The long‐term noise readings were recorded using Piccolo Type 2 integrating sound level meter and dataloggers. The Piccolo sound level meters were calibrated using a Larson‐Davis calibrator, Model CAL 150. All noise meters were programmed in "slow" mode to record noise levels in "A" weighted form. The sound level meters and microphones were equipped with a windscreen during all measurements. All noise level measurement equipment satisfies the American National Standards Institute (ANSI) standard specifications for sound level meters ANSI S1.4‐2014/IEC 61672‐1:2013. (19)

5.2 NOISE MEASUREMENT LOCATIONS
The long‐term noise level measurements were positioned as close to the nearest sensitive receiver locations as possible to assess the existing ambient hourly noise levels surrounding the Project site. Both Caltrans and the FTA recognize that it is not reasonable to collect noise level measurements that can fully represent every part of a private yard, patio, deck, or balcony normally used for human activity when estimating impacts for new development projects. This is demonstrated in the Caltrans general site location guidelines which indicate that, sites must be free of noise contamination by sources other than sources of interest. Avoid sites located near sources such as barking dogs, lawnmowers, pool pumps, and air conditioners unless it is the express intent of the analyst to measure these sources. (2) Further, FTA guidance states, that it is not necessary nor recommended that existing noise exposure be determined by measuring at every noise‐sensitive location in the project area. Rather, the recommended approach is to characterize the noise environment for clusters of sites based on measurements or estimates at representative locations in the community (8).

Based on recommendations of Caltrans and the FTA, it is not necessary to collect measurements at each individual building or residence, because each receiver measurement represents a group of buildings that share acoustical equivalence (8). In other words, the area represented by the receiver shares similar shielding, terrain, and geometric relationship to the reference noise source. Receivers represent a location of noise sensitive areas and are used to estimate the future noise level impacts. Collecting reference ambient noise level measurements at the nearby sensitive receiver locations allows for a comparison of the before and after Project noise levels 6-346

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24 and is necessary to assess potential noise impacts due to the Project’s contribution to the ambient noise levels.

5.3 NOISE MEASUREMENT RESULTS
The noise measurements presented below focus on the equivalent or the hourly energy average sound levels (Leq). The equivalent sound level (Leq) represents a steady state sound level containing the same total energy as a time varying signal over a given sample period. Table 5‐1 identifies the hourly daytime (7:00 a.m. to 6:00 p.m.), evening (6:00 p.m. to 10:00 p.m.) and nighttime (10:00 p.m. to 7:00 a.m.) noise levels at each noise level measurement location.

TABLE 5‐1: AMBIENT NOISE LEVEL MEASUREMENTS
Location1 Description
Energy Average
Noise Level
(dBA Leq)2
Daytime Evening Nighttime
L1 Located northwest of the Project site near single‐
family residence at 1 Von Dehn Road. 70.9 66.3 63.7
L2 Located south of the Project site near multi‐family
residence at 910 Island Drive. 54.8 48.8 48.9
L3 Located south of the Project site near multi‐family
residence at 900 Island Drive. 53.5 47.5 47.9
L4 Located south of the Project site near multi‐family
residence at 899 Island Drive. 49.4 46.3 45.0
L5 Located southwest of the Project site near single‐
family residence at 3 Vohn Dehn Road. 53.1 49.6 51.0
L6 Located west of the Project site near single‐family
residence at 1 Vohn Dehn Road. 54.1 51.6 51.9
1 See Exhibit 5‐A for the noise level measurement locations. 2 Energy (logarithmic) average levels. The long‐term 24‐hour measurement worksheets are included in Appendix 5.2. "Daytime" = 7:00 a.m. to 6:00 p.m.; “Evening” = 6:00 p.m. to 10:00 p.m.; "Nighttime" = 10:00 p.m. to 7:00 a.m.

Table 5‐1 provides the equivalent noise levels used to describe the daytime, evening, and nighttime ambient conditions. These daytime and nighttime energy average noise levels represent the average of all hourly noise levels observed during these time periods expressed as a single number. Appendix 5.2 provides summary worksheets of the noise levels for each of the daytime and nighttime hours.
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25 EXHIBIT 5‐A: NOISE MEASUREMENT LOCATIONS

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27 6 TRAFFIC NOISE METHODS AND PROCEDURES
The following section outlines the methods and procedures used to estimate and analyze the future traffic noise environment. Consistent with the City of Rancho Mirage Land Use Compatibility guidelines, all transportation related noise levels are presented in terms of the 24‐ hour CNEL.

6.1 FHWA TRAFFIC NOISE PREDICTION MODEL
The expected roadway noise level increases from vehicular traffic were calculated by Urban Crossroads, Inc. using a computer program that replicates the Federal Highway Administration (FHWA) Traffic Noise Prediction Model‐ FHWA‐RD‐77‐108. (20) The FHWA Model arrives at a predicted noise level through a series of adjustments to the Reference Energy Mean Emission Level (REMEL). In California, the national REMELs are substituted with the California Vehicle Noise (Calveno) Emission Levels. (21) Adjustments are then made to the REMEL to account for:
the roadway classification (e.g., collector, secondary, major or arterial), the roadway active width (i.e., the distance between the center of the outermost travel lanes on each side of the roadway), the total average daily traffic (ADT), the travel speed, the percentages of automobiles, medium trucks, and heavy trucks in the traffic volume, the roadway grade, the angle of view (e.g., whether the roadway view is blocked), the site conditions ("hard" or "soft" relates to the absorption of the ground, pavement, or landscaping), and the percentage of total ADT which flows each hour throughout a 24‐hour period. Research conducted by Caltrans has shown that the use of soft site conditions is appropriate for the application of the FHWA traffic noise prediction model used in this analysis. (22)

6.1.1 OFF‐SITE TRAFFIC NOISE PREDICTION MODEL INPUTS
Table 6‐1 presents the roadway parameters used to assess the Project’s off‐site transportation noise impacts. Table 6‐1 identifies the six off‐site study area roadway segments, the distance from the centerline to adjacent receiving land use based on the functional roadway classifications per the City of Rancho Mirage General Plans Circulation Element, and the posted vehicle speeds.

The ADT volumes used in this study are presented on Table 6‐2 are based on the Desert Island Hotel Focused Traffic Analysis, prepared by Urban Crossroads, Inc. (23) for the following traffic conditions:
 Existing Without Project Conditions
 Existing With Project Conditions
 Existing Plus Ambient Growth (EA) Without Project Conditions (EA)  EA With Project Conditions (with a proposed roadway connection completed) (EA with Project)  Existing Plus Ambient Growth Plus Cumulative (EAC) Without Project Conditions (EAC)  EAC With Project Conditions (with a proposed roadway connection completed) (EAC with Project) TABLE 6‐1: OFF‐SITE ROADWAY PARAMETERS
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28 ID Roadway Segment Classification1
Distance from Centerline
to Receiving Land Use
(Feet)3
Vehicle
Speed
(mph)
1 Frank Sinatra Drive w/o Island Drive Minor Arterial 55' 45 2 Frank Sinatra Drive e/o Island Drive Minor Arterial 55' 45 3 Frank Sinatra Drive e/o Bob Hope Drive Minor Arterial 55' 45 4 Bob Hope Drive n/o Frank Sinatra Drive Major Arterial 60' 45 5 Bob Hope Drive s/o Frank Sinatra Drive Minor Arterial 55' 45 6 Island Drive s/o Frank Sinatra Drive Local 30' 25
1 City of Rancho Mirage General Plans Circulation Element 2 Distance to receiving land use is based upon the right‐of‐way distances.

TABLE 6‐2:  AVERAGE DAILY TRAFFIC VOLUMES
ID Roadway Segment
Average Daily Traffic Volumes1
Existing  Existing Plus
Ambient Growth
Existing Plus
Ambient Groth Plus
Cumualtive
Without
Project
With
Project
Without
Project
With
Project
Without
Project
With
Project
1 Frank Sinatra Drive w/o Island Drive 13,700  13,950  14,250  14,500  17,550  17,800 2 Frank Sinatra Drive e/o Island Drive 13,300  14,050  13,850  14,600  17,050  17,800 3 Frank Sinatra Drive e/o Bob Hope Drive 13,100  13,300  13,600  13,800  16,000  16,200 4 Bob Hope Drive n/o Frank Sinatra Drive 18,600  18,900  19,400  19,700  22,900  23,200 5 Bob Hope Drive s/o Frank Sinatra Drive 21,300  21,320  22,380  22,400  25,980  26,000 6 Island Drive s/o Frank Sinatra Drive 1,000  1,100  1,900  2,000  1,900  2,000 1 Desert Island Focused Traffic Analysis, Urban Crossroads.

The ADT volumes vary for each roadway segment based on the existing traffic volumes and the combination of project traffic distributions. Table 6‐3 provides the time of day (daytime, evening, and nighttime) vehicle splits and Table 6‐4 presents the traffic flow distributions (vehicle mix) used for this analysis. The vehicle mix provides the hourly distribution percentages of automobile, medium trucks, and heavy trucks for input into the FHWA noise prediction model.

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29 TABLE 6‐3: TIME OF DAY VEHICLE SPLITS
Vehicle Type
Time of Day Splits1 Total of Time of
Day Splits Daytime Evening Nighttime
Autos 77.50% 12.90% 9.60% 100.00%
Medium Trucks 84.80% 4.90% 10.30% 100.00%
Heavy Trucks 86.50% 2.70% 10.80% 100.00%
1 Typical Southern California vehicle mix.
"Daytime" = 7:00 a.m. to 7:00 p.m.; "Evening" = 7:00 p.m. to 10:00 p.m.; "Nighttime" = 10:00 p.m. to 7:00 a.m.

TABLE 6‐4: TRAFFIC FLOW BY VEHICLE TYPE (VEHICLE MIX)
Classification
Total % Traffic Flow
Total
Autos Medium Trucks Heavy Trucks
All Roadways1 97.42% 1.84% 0.74% 100.00%
1 Typical Southern California vehicle mix.

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31 7 OFF‐SITE TRAFFIC NOISE ANALYSIS
To assess the off‐site transportation CNEL noise level impacts associated with development of the proposed Project, noise contours were developed based on the Desert Island Hotel Focused Traffic Analysis. (23) Noise contour boundaries represent the equal levels of noise exposure and are measured in CNEL from the center of the roadway.

7.1 NOISE CONTOURS
Noise contours were used to assess the Project's incremental 24‐hour dBA CNEL traffic‐related noise impacts at receiving land uses adjacent to roadways conveying Project traffic. The noise contours represent the distance to noise levels of a constant value and are measured from the center of the roadway for the 70, 65, and 60 dBA CNEL noise levels. The noise contours do not consider the effect of any existing noise barriers or topography that may attenuate ambient noise levels. In addition, because the noise contours reflect modeling of vehicular noise on area roadways, they appropriately do not reflect noise contributions from the surrounding stationary noise sources within the Project study area.

Tables 7‐1 through 7‐6 present a summary of the exterior dBA CNEL traffic noise levels without barrier attenuation. Roadway segments are analyzed from the without Project to the with Project conditions in each of the following timeframes:
 Existing Without Project Conditions
 Existing With Project Conditions
 EA Without Project Conditions
 EA With Project Conditions (with a proposed roadway connection completed)  EAC Without Project Conditions
 EAC With Project Conditions (with a proposed roadway connection completed) Appendix 7.1 includes a summary of the dBA CNEL traffic noise level contours for each of the traffic scenarios.

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32 TABLE 7‐1: EXISTING WITHOUT PROJECT CONTOURS
ID Road Segment
CNEL at
Receiving
Land Use
(dBA)1
Distance to Contour from
Centerline (Feet)
70 dBA
CNEL
65 dBA
CNEL
60 dBA
CNEL
1 Frank Sinatra Drive w/o Island Drive 68.2 42 91 195
2 Frank Sinatra Drive e/o Island Drive 68.1 41 89 191
3 Frank Sinatra Drive e/o Bob Hope Drive 68.1 41 88 189 4 Bob Hope Drive n/o Frank Sinatra Drive 70.3 63 135 291 5 Bob Hope Drive s/o Frank Sinatra Drive 70.2 56 122 262 6 Island Drive s/o Frank Sinatra Drive 53.7 2 5 11
1 The CNEL is calculated at the boundary of the right‐of‐way of the receiving adjacent land use. "RW" = Location of the respective noise contour falls within the right‐of‐way of the road.

TABLE 7‐2: EXISTING WITH PROJECT CONTOURS
ID Road Segment
CNEL at
Receiving
Land Use
(dBA)1
Distance to Contour from
Centerline (Feet)
70 dBA
CNEL
65 dBA
CNEL
60 dBA
CNEL
1 Frank Sinatra Drive w/o Island Drive 68.3 43 92 197
2 Frank Sinatra Drive e/o Island Drive 68.4 43 92 198
3 Frank Sinatra Drive e/o Bob Hope Drive 68.1 41 89 191 4 Bob Hope Drive n/o Frank Sinatra Drive 70.4 63 137 294 5 Bob Hope Drive s/o Frank Sinatra Drive 70.2 56 122 262 6 Island Drive s/o Frank Sinatra Drive 54.1 3 6 12
1 The CNEL is calculated at the boundary of the right‐of‐way of the receiving adjacent land use. "RW" = Location of the respective noise contour falls within the right‐of‐way of the road.

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33 TABLE 7‐3: EA WITHOUT PROJECT CONTOURS
ID Road Segment
CNEL at
Receiving
Land Use
(dBA)1
Distance to Contour from
Centerline (Feet)
70 dBA
CNEL
65 dBA
CNEL
60 dBA
CNEL
1 Frank Sinatra Drive w/o Island Drive 68.4 43 93 200
2 Frank Sinatra Drive e/o Island Drive 68.3 42 91 197
3 Frank Sinatra Drive e/o Bob Hope Drive 68.2 42 90 194 4 Bob Hope Drive n/o Frank Sinatra Drive 70.5 65 139 299 5 Bob Hope Drive s/o Frank Sinatra Drive 70.4 58 126 271 6 Island Drive s/o Frank Sinatra Drive 56.5 4 8 18
1 The CNEL is calculated at the boundary of the right‐of‐way of the receiving adjacent land use. "RW" = Location of the respective noise contour falls within the right‐of‐way of the road.

TABLE 7‐4: EA WITH PROJECT CONTOURS
ID Road Segment
CNEL at
Receiving
Land Use
(dBA)1
Distance to Contour from
Centerline (Feet)
70 dBA
CNEL
65 dBA
CNEL
60 dBA
CNEL
1 Frank Sinatra Drive w/o Island Drive 68.5 44 94 203
2 Frank Sinatra Drive e/o Island Drive 68.5 44 94 204
3 Frank Sinatra Drive e/o Bob Hope Drive 68.3 42 91 196 4 Bob Hope Drive n/o Frank Sinatra Drive 70.5 65 140 302 5 Bob Hope Drive s/o Frank Sinatra Drive 70.4 58 126 271 6 Island Drive s/o Frank Sinatra Drive 56.7 4 8 18
1 The CNEL is calculated at the boundary of the right‐of‐way of the receiving adjacent land use. "RW" = Location of the respective noise contour falls within the right‐of‐way of the road.

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34 TABLE 7‐5: EAC WITHOUR PROJECT CONTOURS
ID Road Segment
CNEL at
Receiving
Land Use
(dBA)1
Distance to Contour from
Centerline (Feet)
70 dBA
CNEL
65 dBA
CNEL
60 dBA
CNEL
1 Frank Sinatra Drive w/o Island Drive 69.3 50 107 230
2 Frank Sinatra Drive e/o Island Drive 69.2 49 105 226
3 Frank Sinatra Drive e/o Bob Hope Drive 68.9 47 100 216 4 Bob Hope Drive n/o Frank Sinatra Drive 71.2 72 155 334 5 Bob Hope Drive s/o Frank Sinatra Drive 71.0 64 139 299 6 Island Drive s/o Frank Sinatra Drive 56.5 4 8 18
1 The CNEL is calculated at the boundary of the right‐of‐way of the receiving adjacent land use. "RW" = Location of the respective noise contour falls within the right‐of‐way of the road.

TABLE 7‐6: EAC WITH PROJECT CONTOURS
ID Road Segment
CNEL at
Receiving
Land Use
(dBA)1
Distance to Contour from
Centerline (Feet)
70 dBA
CNEL
65 dBA
CNEL
60 dBA
CNEL
1 Frank Sinatra Drive w/o Island Drive 69.4 50 108 232
2 Frank Sinatra Drive e/o Island Drive 69.4 50 108 232
3 Frank Sinatra Drive e/o Bob Hope Drive 69.0 47 101 218 4 Bob Hope Drive n/o Frank Sinatra Drive 71.2 73 157 337 5 Bob Hope Drive s/o Frank Sinatra Drive 71.0 64 139 299 6 Island Drive s/o Frank Sinatra Drive 56.7 4 8 18
1 The CNEL is calculated at the boundary of the right‐of‐way of the receiving adjacent land use. "RW" = Location of the respective noise contour falls within the right‐of‐way of the road.

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35 7.2 EXISTING PROJECT TRAFFIC NOISE LEVEL INCREASES
An analysis of existing traffic noise levels plus traffic noise generated by the proposed Project has been included in this report to fully analyze all the existing traffic scenarios identified in the Desert Island Hotel Specific Plan Traffic Analysis. This condition is provided solely for informational purposes and will not occur, since the Project will not be fully developed and occupied under Existing conditions. Table 7‐1 shows the Existing without Project conditions CNEL noise levels. The Existing without Project exterior noise levels are expected to range from 53.7 to 70.3 dBA CNEL, without accounting for any noise attenuation features such as noise barriers or topography. Table 7‐2 shows the Existing with Project conditions will range from 54.1 to 70.4 dBA CNEL. Table 7‐7 shows that the Project off‐site traffic noise level impacts will range from 0.0 to 0.4 dBA CNEL. Based on the significance criteria for off‐site traffic noise presented in Table 4‐ 1, land uses adjacent to the study area roadway segments would experience less than significant noise level impacts due to unmitigated Project‐related traffic noise levels.

7.3 EXISTING PLUS AMBIENT GROWTH PROJECT TRAFFIC NOISE LEVEL INCREASES Table 7‐3 presents the EA without Project conditions CNEL noise levels. The EA without Project exterior noise levels are expected to range from 56.5 to 70.5 dBA CNEL, without accounting for any noise attenuation features such as noise barriers or topography. Table 7‐4 presents the E+A with Project conditions CNEL noise levels. The EA with Project exterior noise levels are expected to range from 56.7 to 70.5 dBA CNEL, without accounting for any noise attenuation features such as noise barriers or topography. Table 7‐8 shows that the Project off‐site traffic noise level increases will range from 0.0 to 0.2 dBA CNEL. Based on the significance criteria for off‐site traffic noise presented in Table 4‐1, land uses adjacent to the study area roadway segments would experience less than significant noise level impacts due to unmitigated Project‐related traffic noise levels.

7.4 EXISTING PLUS AMBIENT GROWTH PLUS CUMULATIVE PROJECT TRAFFIC NOISE LEVEL

INCREASES
Table 7‐5 presents the EAC without Project conditions CNEL noise levels. The EAC without Project exterior noise levels are expected to range from 56.5 to 71.2 dBA CNEL, without accounting for any noise attenuation features such as noise barriers or topography. Table 7‐6 shows the EAC with Project conditions will range from 56.7 to 71.2 dBA CNEL. Table 7‐9 shows that the Project off‐site traffic noise level increases will range from 0.0 to 0.2 dBA CNEL. Based on the significance criteria for off‐site traffic noise presented in Table 4‐1, land uses adjacent to the study area roadway segments would experience less than significant noise level impacts due to unmitigated Project‐related traffic noise levels.
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36 TABLE 7‐7: EXISTING WITH PROJECT TRAFFIC NOISE LEVEL INCREASES ID Road Segment
CNEL at Receiving
Land Use (dBA)1
Incremental Noise
Level Increase
Threshold2
No
Project
With
Project
Project
Addition Limit Exceeded?
1 Frank Sinatra Drive w/o Island Drive 68.2 68.3 0.1 1.5 No 2 Frank Sinatra Drive e/o Island Drive 68.1 68.4 0.3 1.5 No 3 Frank Sinatra Drive e/o Bob Hope Drive 68.1 68.1 0.0 1.5 No 4 Bob Hope Drive n/o Frank Sinatra Drive 70.3 70.4 0.1 1.5 No 5 Bob Hope Drive s/o Frank Sinatra Drive 70.2 70.2 0.0 1.5 No 6 Island Drive s/o Frank Sinatra Drive 53.7 54.1 0.4 5.0 No 1 The CNEL is calculated at the boundary of the right‐of‐way of each roadway and the property line of the receiving land use. 2 Does the Project create an incremental noise level increase exceeding the significance criteria (Table 4‐1)? TABLE 7‐8: E+A WITH PROJECT TRAFFIC NOISE LEVEL INCREASES ID Road Segment
CNEL at Receiving
Land Use (dBA)1
Incremental Noise
Level Increase
Threshold2
No
Project
With
Project
Project
Addition Limit Exceeded?
1 Frank Sinatra Drive w/o Island Drive 68.4 68.5 0.1 1.5 No 2 Frank Sinatra Drive e/o Island Drive 68.3 68.5 0.2 1.5 No 3 Frank Sinatra Drive e/o Bob Hope Drive 68.2 68.3 0.1 1.5 No 4 Bob Hope Drive n/o Frank Sinatra Drive 70.5 70.5 0.0 1.5 No 5 Bob Hope Drive s/o Frank Sinatra Drive 70.4 70.4 0.0 1.5 No 6 Island Drive s/o Frank Sinatra Drive 56.5 56.7 0.2 5.0 No 1 The CNEL is calculated at the boundary of the right‐of‐way of each roadway and the property line of the receiving land use. 2 Does the Project create an incremental noise level increase exceeding the significance criteria (Table 4‐1)?

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37 TABLE 7‐9: E+A+C WITH PROJECT TRAFFIC NOISE LEVEL INCREASES ID Road Segment
CNEL at Receiving
Land Use (dBA)1
Incremental Noise
Level Increase
Threshold2
No
Project
With
Project
Project
Addition Limit Exceeded?
1 Frank Sinatra Drive w/o Island Drive 69.3 69.4 0.1 1.5 No 2 Frank Sinatra Drive e/o Island Drive 69.2 69.4 0.2 1.5 No 3 Frank Sinatra Drive e/o Bob Hope Drive 68.9 69.0 0.1 1.5 No 4 Bob Hope Drive n/o Frank Sinatra Drive 71.2 71.2 0.0 1.5 No 5 Bob Hope Drive s/o Frank Sinatra Drive 71.0 71.0 0.0 1.5 No 6 Island Drive s/o Frank Sinatra Drive 56.5 56.7 0.2 5.0 No 1 The CNEL is calculated at the boundary of the right‐of‐way of each roadway and the property line of the receiving land use. 2 Does the Project create an incremental noise level increase exceeding the significance criteria (Table 4‐1)?

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39 8 RECEIVER LOCATIONS
To assess the potential for long‐term operational and short‐term construction noise impacts, the following sensitive receiver locations, as shown on Exhibit 8‐A, were identified as representative locations for analysis. Sensitive receivers are generally defined as locations where people reside or where the presence of unwanted sound could otherwise adversely affect the use of the land.

Noise‐sensitive land uses are generally considered to include schools, hospitals, single‐family dwellings, mobile home parks, churches, libraries, and recreation areas. Moderately noise‐ sensitive land uses typically include multi‐family dwellings, hotels, motels, dormitories, out‐ patient clinics, cemeteries, golf courses, country clubs, athletic/tennis clubs, and equestrian clubs. Land uses that are considered relatively insensitive to noise include business, commercial, and professional developments. Land uses that are typically not affected by noise include:
industrial, manufacturing, utilities, agriculture, undeveloped land, parking lots, warehousing, liquid and solid waste facilities, salvage yards, and transit terminals.

To describe the potential off‐site Project noise levels, six receiver locations in the vicinity of the Project site were identified. All distances are measured from the Project site boundary to the outdoor living areas (e.g., private backyards) or at the building façade, whichever is closer to the Project site. The selection of receiver locations is based on FHWA guidelines and is consistent with additional guidance provided by Caltrans and the FTA, as previously described in Section 5.2.

Other sensitive land uses in the Project study area that are located at greater distances than those identified in this noise study will experience lower noise levels than those presented in this report due to the additional attenuation from distance and the shielding of intervening structures. Distance is measured in a straight line from the project boundary to each receiver location.

R1: Location R1 represents the existing noise sensitive residence at 1 Von Dehn Road, approximately 244 feet northwest of the Project site. Receiver R1 is placed in the private outdoor living areas (backyards) facing the Project site. A 24‐hour noise measurement was taken near this location, L1, to describe the existing ambient noise environment.

R2: Location R2 represents the existing noise sensitive residence at 910 Island Drive, approximately 395 feet southeast of the Project site. Since there are no private outdoor living areas (backyards) facing the Project site, receiver R2 is placed at the building façade.

A 24‐hour noise measurement was taken near this location, L2, to describe the existing ambient noise environment.

R3: Location R3 represents the existing noise sensitive residence at 900 Island Drive, approximately 1,114 feet southeast of the Project site. Since there are no private outdoor living areas (backyards) facing the Project site, receiver R3 is placed at the building façade.

A 24‐hour noise measurement was taken near this location, L3, to describe the existing ambient noise environment.

R4: Location R4 represents the existing noise sensitive residence at 899 Island Drive, approximately 961 feet south of the Project site. Since there are no private outdoor living areas (backyards) facing the Project site, receiver R4 is placed at the building façade. A 24‐hour noise measurement was taken near this location, L4, to describe the existing ambient noise environment.
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40 R5: Location R5 represents the existing noise sensitive residence at 30 Villaggio Place, approximately 193 feet southwest of the Project site. Receiver R5 is placed in the private outdoor living areas (backyards) facing the Project site. A 24‐hour noise measurement was taken near this location, L5, to describe the existing ambient noise environment.

R6: Location R6 represents the existing noise sensitive residence at 3 Von Dehn Road, approximately 231 feet west of the Project site. Since there are no private outdoor living areas (backyards) facing the Project site, receiver R6 is placed at the building façade. A 24‐hour noise measurement was taken near this location, L6, to describe the existing ambient noise environment.

EXHIBIT 8‐A: RECEIVER LOCATIONS

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41 9 OPERATIONAL NOISE IMPACTS
This section analyzes the potential stationary‐source operational noise impacts at the nearest receiver locations, identified in Section 8, resulting from the operation of uses allowed by the Desert Island Hotel. The residential areas within the Desert Island Hotel are considered a noise‐ sensitive receiving land use and are not expected to include any meaningful sources of noise activity. Exhibit 9‐A identifies the representative noise source locations used to assess stationary noise sources.

9.1 OPERATIONAL NOISE SOURCES
This operational noise analysis is intended to describe noise level impacts associated with the expected typical daytime and nighttime activities at the Project site. The on‐site Project‐related noise sources are expected to include: outdoor recreational and training activities, trash enclosure activities, roof‐top air conditioning units, ground mounted air conditioning units, packaged terminal air conditioning units, swimming pools, and parking lot activities.

9.2 REFERENCE NOISE LEVELS
To estimate the Project operational noise impacts, reference noise level measurements were collected from similar types of activities, or taken from manufactures specification sheets, to represent the noise levels expected with the development of the proposed Project. This section provides a detailed description of the reference noise levels shown on Table 9‐1 used to estimate the Project operational noise impacts. It is important to note that the following projected noise levels assume the worst‐case noise environment with the outdoor recreational and training activities, trash enclosure activities, roof‐top air conditioning units, ground mounted air conditioning units, packaged terminal air conditioning units, swimming pools, and parking lot activities all operating at the same time. These sources of noise activity will likely vary throughout the day.

9.2.1 MEASUREMENT PROCEDURES
Unless noted in the following descriptions, the reference noise level measurements presented in this section were collected using a Larson Davis LxT Type 1 precisions sound level meter (serial number 01146). The LxT sound level meter was calibrated using a Larson‐Davis calibrator, Model CAL 200, was programmed in "slow" mode to record noise levels in "A" weighted form and was located at approximately five feet above the ground elevation for each measurement. The sound level meters and microphones were equipped with a windscreen during all measurements. All noise level measurement equipment satisfies the American National Standards Institute (ANSI) standard specifications for sound level meters ANSI S1.4‐2014/IEC 61672‐1:2013. (19) 6-364

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42 EXHIBIT 9‐A: STATIONARY SOURCE NOISE LOCATIONS

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43 TABLE 9‐1: REFERENCE NOISE LEVEL MEASUREMENTS
Noise Source
Noise Source
Height
(Feet)
Min./Hour1
Reference
Noise
Level
@50 feet
(dBA Leq)
Sound
Power
Level
(dBA)2 Day Eve. Night
Outdoor Recreational Activities 5' 60' 60' 0' 59.8 91.5 Trash Enclosure Activities 8' 10' 10' 10' 56.8 89.0
Roof‐Top Air Conditioning Units 5' 39' 39' 28' 57.2 88.9 Ground Air Conditioning Units 4' 60' 60' 60' 43.4 75.0
Packaged Terminal Air Conditioning Units 4' 60' 60' 60' 29.6 61.2 Swimming Pool Activities 5' 60' 60' 0' 57.7 89.3
Parking Lot Activities 5' 60' 60' 30' 56.1 87.8
1 Anticipated duration (minutes within the hour) of noise activity during typical hourly conditions expected at the Project site. 2 Sound power level represents the total amount of acoustical energy (noise level) produced by a sound source independent of distance or surroundings. Sound power levels calculated using the CadnaA noise model at the reference distance to the noise source. "Day" = 7:00 a.m. to 6:00 p.m.; "Evening" = 6:00 p.m. to 10:00 p.m.; "Night" = 10:00 p.m. to 7:00 a.m.

9.2.2 OUTDOOR RECREATIONAL ACTIVITIES
To describe the outdoor recreational and golf training activities within common areas, courtyards, and golf warm up locations a reference noise level measurement a reference noise level is 59.8 dBA Leq at 50 feet was used. The reference noise level measurement included outdoor dining, drinking, laughing and talking, dancing, and background music. This noise level is considered representative of several other activities, including golf training activities. Outdoor recreational activities are modeled at 5 feet above ground level and are limited to the daytime and evening hours with 30 minutes per hour of activity during the nighttime hours to represent reduced activity at night.

9.2.3 TRASH ENCLOSURE ACTIVITIES
To describe the noise levels associated with a trash enclosure activity, Urban Crossroads collected a reference noise level measurement at an existing trash enclosure containing two dumpster bins. The trash enclosure noise levels describe metal gates opening and closing, metal scraping against concrete floor sounds, dumpster movement on metal wheels, and trash dropping into the metal dumpster. The reference noise levels describe trash enclosure noise activities when trash is dropped into an empty metal dumpster, as would occur at the Project site. The measured reference noise level at the uniform 50‐foot reference distance is 56.8 dBA Leq for the trash enclosure activity. The reference noise level describes the expected noise source activities associated with the trash enclosures for the Project’s proposed buildings. Typical trash enclosure activities are estimated to occur for 10 minutes per hour.

9.2.4 ROOF‐TOP AIR CONDITIONING UNITS
To assess the noise levels created by the roof‐top air conditioning units, reference noise level measurements were collected from a Lennox SCA120 series 10‐ton model packaged air conditioning unit. At the uniform reference distance of 50 feet, the reference noise levels are 6-366

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44 57.2 dBA Leq. For this noise analysis, the air conditioning units are expected operate continuously for 60 minutes per hour and will be located four feet above the roof elevation of the Project buildings. This reference noise level describes the expected roof‐top air conditioning units located 5 feet above the roof for the planned air conditioning units at the Project site.

9.2.5 GROUND MOUNTED AIR CONDITIONING UNITS
To assess the noise levels created by the residential air conditioning units, reference noise levels were taken from the Carrier model 24ACC4 product data sheet. The product data sheet for Carrier model 24ACC4 planned for the Project will produce a maximum sound power level of 75 dBA Lw. For this noise analysis, the air conditioning units are expected operate continuously for 60 minutes per hour and will be located four feet above the ground elevation.

9.2.6 PACKAGED TERMINAL AIR CONDITIONING UNITS
To assess the noise levels created by the hotel packaged terminal air conditioning (PTAC) units, reference noise levels were taken from the Trane model TEF1502HAA product data sheet. The product data sheet for Trane model TEF1502HAA will produce a maximum sound power level of

61.2 dBA Lw. For this noise analysis, the air conditioning units are expected operate continuously for 60 minutes per hour and will be located four feet above the ground elevation.

9.2.7 SWIMMING POOL ACTIVITIES
To represent the noise levels associated with pool activities, Urban Crossroads collected a reference noise level measurement at an existing outdoor pool and spa. The measured reference noise level at the uniform 50‐foot reference distance is 54.7 dBA Leq for pool activity. The pool activity noise levels include kids playing, running, screaming, splashing, playing with a ball, and parents talking. Noise associated with pool activities is expected to occur for the entire hour (60 minutes) during daytime and evening hours with 30 minutes of activity during the nighttime hours to represent reduced activity at night.

9.2.8 PARKING LOT ACTIVITIES
To describe the on‐site parking lot activity a reference noise level of 56.1 dBA Leq at 50 feet is used. Parking lot activity are expected to take place during the full hour (60 minutes) throughout the daytime and evening hours with 30 minutes of activity during the nighttime hours. The parking lot noise levels are mainly due to cars pulling in and out of parking spaces.

9.3 CADNAA NOISE PREDICTION MODEL
To fully describe the exterior operational noise levels from the Project, Urban Crossroads, Inc. developed a noise prediction model using the CadnaA (Computer Aided Noise Abatement) computer program. CadnaA can analyze multiple types of noise sources using the spatially accurate Project site plan, georeferenced Nearmap aerial imagery, topography, buildings, and barriers in its calculations to predict outdoor noise levels.

Using the ISO 9613‐2 protocol, CadnaA will calculate the distance from each noise source to the noise receiver locations, using the ground absorption, distance, and barrier/building attenuation 6-367

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45 inputs to provide a summary of noise level at each receiver and the partial noise level contributions by noise source. Consistent with the ISO 9613‐2 protocol, the CadnaA noise prediction model relies on the reference sound power level (Lw) to describe individual noise sources. While sound pressure levels (e.g., Leq) quantify in decibels the intensity of given sound sources at a reference distance, sound power levels (Lw) are connected to the sound source and are independent of distance. Sound pressure levels vary substantially with distance from the source and diminish because of intervening obstacles and barriers, air absorption, wind, and other factors. Sound power is the acoustical energy emitted by the sound source and is an absolute value that is not affected by the environment. The operational noise level calculations provided in this noise study account for the distance attenuation provided due to geometric spreading, when sound from a localized stationary source (i.e., a point source) propagates uniformly outward in a spherical pattern. A default ground attenuation factor of 0.5 was used in the noise analysis to account for mixed ground representing a combination of hard and soft surfaces.

9.4 PROJECT OPERATIONAL NOISE LEVELS
Using the reference noise levels to represent the proposed Project operations that include, Urban Crossroads, Inc. calculated the operational source noise levels that are expected to be generated from the Project site and the Project‐related noise level increases that would be experienced at each of the sensitive receiver locations. Tables 9‐2 shows the calculated Project operational noise levels during the daytime hours of 7:00 a.m. to 6:00 p.m., evening hours of 6:00 p.m. to 10:00 p.m. and the nighttime hours of 10:00 p.m. to 7:00 a.m. Table 9‐2 shows that the Project operational noise levels will range from 26.0 to 43.3 dBA Leq.

TABLE 9‐2: PROJECT OPERATIONAL NOISE LEVELS
Receiver
Location1
Project Operational
Noise Levels (dBA Leq)2
Noise Level Standards
(dBA Leq)3 Threshold Exceeded?4
Day Eve. Night Day Eve. Night Day Eve. Night
R1 43.3 43.3 34.6 55 50 45 No No No
R2 37.0 37.0 27.6 55 50 45 No No No
R3 36.8 36.8 26.0 55 50 45 No No No
R4 39.4 39.4 28.8 55 50 45 No No No
R5 40.9 40.9 30.3 55 50 45 No No No
R6 40.6 40.6 30.6 55 50 45 No No No
1 See Exhibit 8‐A for the receiver locations.
2 Proposed Project operational noise level calculations included in Appendix 9.1. 3 City of Rancho Mirage exterior noise level standards by land use, as shown on Table 3‐1. 4 Do the estimated Project operational noise source activities exceed the noise level standards? "Day" = 7:00 a.m. to 6:00 p.m.; "Evening" = 6:00 p.m. to 10:00 p.m.; "Night" = 10:00 p.m. to 7:00 a.m.

To demonstrate compliance with local noise regulations, the Project‐only operational noise levels are evaluated against exterior noise level thresholds based on the City of Rancho Mirage exterior noise level standards at nearby noise‐sensitive receiver locations. Table 9‐2 shows that the 6-368

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46 operational noise levels associated with Desert Island Hotel Project will satisfy the City of Rancho Mirage daytime, evening, and nighttime exterior noise level standards at all nearby receiver locations. Therefore, the operational noise impacts are considered less than significant at the nearby noise‐sensitive receiver locations.

9.6 PROJECT OPERATIONAL NOISE LEVEL INCREASES
To describe the Project operational noise level increases, the Project operational noise levels are combined with the existing ambient noise levels measurements for the nearby receiver locations potentially impacted by Project operational noise sources. Since the units used to measure noise, decibels (dB), are logarithmic units, the Project‐stationary source and existing ambient noise levels cannot be combined using standard arithmetic equations. (2) Instead, they must be logarithmically added using the following base equation:

SPLTotal = 10log10[10SPL1/10 + 10SPL2/10 + … 10SPLn/10] Where “SPL1,” “SPL2,” etc. are equal to the sound pressure levels being combined, or in this case, the Project operational and existing ambient noise levels. The difference between the combined Project and ambient noise levels describes the Project noise level increases to the existing ambient noise environment. Noise levels that would be experienced at receiver locations when Project‐source noise is added to the daytime, evening, and nighttime ambient conditions are presented on Tables 9‐3, 9‐4, and 9‐5, respectively. As indicated on Tables 9‐3, 9‐4 and 9‐5, the Project will generate an unmitigated operational noise level increases ranging from 0.0 to 0.8 dBA Leq at the nearby receiver locations.

Tables 9‐3, 9‐4 and 9‐5 show that the Project operational noise level contributions satisfy the operational noise level increase significance criteria presented in Table 4‐1. Therefore, the Project related operational noise level increases at all sensitive receiver locations will be less than significant.

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47 TABLE 9‐3: DAYTIME PROJECT STATIONARY SOURCE NOISE LEVEL INCREASES Receiver
Location1
Total
Project
Operational
Noise
Level2
Measurement
Location3
Reference
Ambient
Noise
Levels4
Combined
Project
and
Ambient5
Project
Increase6
Increase
Criteria7
Increase
Criteria
Exceeded?7
R1 43.3 L1 70.9 70.9 0.0 1.5 No
R2 37.0 L2 54.8 54.9 0.1 5.0 No
R3 36.8 L3 53.5 53.6 0.1 5.0 No
R4 39.4 L4 49.4 49.8 0.4 5.0 No
R5 40.9 L5 53.1 53.4 0.3 5.0 No
1 See Exhibit 8‐A for the receiver locations.
2 Total Project operational noise levels as shown on Table 9‐2. 3 Reference noise level measurement locations as shown on Exhibit 5‐A. 4 Observed daytime ambient noise levels as shown on Table 5‐1. 5 Represents the combined ambient conditions plus the Project activities. 6 The noise level increase expected with the addition of the proposed Project activities. 7 Significance Criteria as defined in Section 4.

TABLE 9‐4: EVENING PROJECT STATIONARY SOURCE NOISE LEVEL INCREASES Receiver
Location1
Total
Project
Operational
Noise
Level2
Measurement
Location3
Reference
Ambient
Noise
Levels4
Combined
Project
and
Ambient5
Project
Increase6
Increase
Criteria7
Increase
Criteria
Exceeded?7
R1 43.3 L1 66.3 66.3 0.0 1.5 No
R2 37.0 L2 48.8 49.1 0.3 5.0 No
R3 36.8 L3 47.5 47.9 0.4 5.0 No
R4 39.4 L4 46.3 47.1 0.8 5.0 No
R5 40.9 L5 49.6 50.1 0.5 5.0 No
1 See Exhibit 8‐A for the receiver locations.
2 Total Project operational noise levels as shown on Table 9‐2. 3 Reference noise level measurement locations as shown on Exhibit 5‐A. 4 Observed evening ambient noise levels as shown on Table 5‐1. 5 Represents the combined ambient conditions plus the Project activities. 6 The noise level increase expected with the addition of the proposed Project activities. 7 Significance Criteria as defined in Section 4.

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48 TABLE 9‐5: NIGHTTIME PROJECT STATIONARY SOURCE NOISE LEVEL INCREASES Receiver
Location1
Total
Project
Operational
Noise
Level2
Measurement
Location3
Reference
Ambient
Noise
Levels4
Combined
Project
and
Ambient5
Project
Increase6
Increase
Criteria7
Increase
Criteria
Exceeded?7
R1 34.6 L1 63.7 63.7 0.0 3.0 No
R2 27.6 L2 48.9 48.9 0.0 5.0 No
R3 26.0 L3 47.9 47.9 0.0 5.0 No
R4 28.8 L4 45.0 45.1 0.1 5.0 No
R5 30.3 L5 51.0 51.0 0.0 5.0 No
1 See Exhibit 8‐A for the receiver locations.
2 Total Project operational noise levels as shown on Table 9‐2. 3 Reference noise level measurement locations as shown on Exhibit 5‐A. 4 Observed nighttime ambient noise levels as shown on Table 5‐1. 5 Represents the combined ambient conditions plus the Project activities. 6 The noise level increase expected with the addition of the proposed Project activities. 7 Significance Criteria as defined in Section 4.

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49 10 CONSTRUCTION IMPACTS
This section analyzes potential impacts resulting from the short‐term construction activities associated with the development of the Project. Exhibit 10‐A shows the construction noise source locations in relation to the nearest sensitive receiver locations previously described in Section 8.

10.1 CONSTRUCTION NOISE LEVELS
The FTA Transit Noise and Vibration Impact Assessment Manual recognizes that construction projects are accomplished in several different stages and outlines the procedures for assessing noise impacts during construction. Each stage has a specific equipment mix, depending on the work to be completed during that stage. As a result of the equipment mix, each stage has its own noise characteristics; some stages have higher continuous noise levels than others, and some have higher impact noise levels than others. The Project construction activities are expected to occur in the following stages:
 Site Preparation
 Grading
 Building Construction
 Paving
 Architectural Coating

10.2 CONSTRUCTION REFERENCE NOISE LEVELS
To describe construction noise activities, this construction noise analysis was prepared using reference construction equipment noise levels from the Federal Highway Administration (FHWA) published the Roadway Construction Noise Model (RCNM), which includes a national database of construction equipment reference noise emission levels. (24) The RCNM equipment database, provides a comprehensive list of the noise generating characteristics for specific types of construction equipment. In addition, the database provides an acoustical usage factor to estimate the fraction of time each piece of construction equipment is operating at full power (i.e., its loudest condition) during a construction operation. 6-372

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50 EXHIBIT 10‐A: TYPICAL CONSTRUCTION NOISE SOURCE LOCATIONS

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51 10.3 CONSTRUCTION NOISE ANALYSIS
Using the reference construction equipment noise levels and the CadnaA noise prediction model, calculations of the Project construction noise level impacts at the nearby sensitive receiver locations were completed. Consistent with FTA guidance for general construction noise assessment, Table 10‐1 presents the combined noise levels for the loudest construction equipment, assuming they operate at the same time. As shown on Table 10‐2, the construction noise levels are expected to range from 48.8 to 63.0 dBA Leq at the nearby receiver locations.

Appendix 10.1 includes the detailed CadnaA construction noise model inputs.

TABLE 10‐1: CONSTRUCTION REFERENCE NOISE LEVELS
Construction
Stage
Reference
Construction Activity
Reference Noise
Level @ 50 Feet
(dBA Leq)1
Combined
Noise Level
(dBA Leq)2
Combined Sound
Power Level
(PWL)3
Site
Preparation
Crawler Tractors 78.0

80.0 111.6 Hauling Trucks 72.0
Rubber Tired Dozers 75.0
Grading
Graders 81.0

83.0 114.6 Excavators 77.0
Compactors 76.0
Building
Construction
Cranes 73.0

81.0 112.6 Tractors 80.0
Welders 70.0
Paving
Pavers 74.0

83.0 114.6 Paving Equipment 82.0
Rollers 73.0
Architectural
Coating
Cranes 73.0

77.0 108.6 Air Compressors 74.0
Generator Sets 70.0
1 FHWA Roadway Construction Noise Model (RCNM).
2 Represents the combined noise level for all equipment assuming they operate at the same time consistent with FTA Transit Noise and Vibration Impact Assessment guidance.
3 Sound power level represents the total amount of acoustical energy (noise level) produced by a sound source independent of distance or surroundings. Sound power levels calibrated using the CadnaA noise model at the reference distance to the noise source.

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52 TABLE 10‐2: CONSTRUCTION EQUIPMENT NOISE LEVEL SUMMARY Receiver
Location1
Construction Noise Levels (dBA Leq)
Site
Preparation Grading Building
Construction Paving Architectural
Coating
Highest
Levels2
R1 60.0 63.0 61.0 63.0 57.0 63.0
R2 58.8 61.8 59.8 61.8 55.8 61.8
R3 52.4 55.4 53.4 55.4 49.4 55.4
R4 51.8 54.8 52.8 54.8 48.8 54.8
R5 58.6 61.6 59.6 61.6 55.6 61.6
R6 59.0 62.0 60.0 62.0 56.0 62.0
1 Noise receiver locations are shown on Exhibit 10‐A.
2 Construction noise level calculations based on distance from the construction activity, which is measured from the Project site boundary to the nearest receiver locations. CadnaA construction noise model inputs are included in Appendix 10.1.

10.4 CONSTRUCTION NOISE LEVEL COMPLIANCE
To evaluate whether the Project will generate potentially significant short‐term noise levels at nearest receiver locations, a construction‐related daytime noise level threshold of 80 dBA Leq is used as a reasonable threshold to assess the daytime construction noise level impacts. The construction noise analysis shows that the nearest receiver locations will satisfy the reasonable daytime 80 dBA Leq significance threshold during Project construction activities as shown on Table 10‐3. Therefore, the noise impacts due to Project construction noise are considered less than significant at all receiver locations.

TABLE 10‐3: CONSTRUCTION NOISE LEVEL COMPLIANCE
Receiver
Location1
Construction Noise Levels (dBA Leq)
Highest Construction
Noise Levels2 Threshold3 Threshold
Exceeded?4
R1 63.0 80 No
R2 61.8 80 No
R3 55.4 80 No
R4 54.8 80 No
R5 61.6 80 No
R6 62.0 80 No
1 Noise receiver locations are shown on Exhibit 10‐A.
2 Highest construction noise level calculations based on distance from the construction noise source activity to the nearest receiver locations as shown on Table 10‐2. 3 Construction noise level thresholds as shown on Table 4‐1. 4 Do the estimated Project construction noise levels exceed the construction noise level threshold? 6-375

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53 10.5 CONSTRUCTION VIBRATION ANALYSIS
Construction activity can result in varying degrees of ground vibration, depending on the equipment and methods employed. Operation of construction equipment causes ground vibrations that spread through the ground and diminish in strength with distance. Ground vibration levels associated with various types of construction equipment are summarized on Table 10‐4. Based on the representative vibration levels presented for various construction equipment types, it is possible to estimate the potential for human response (annoyance) and building damage using the following vibration assessment methods defined by Caltrans. To calculate vibration levels at distance, Caltrans provides the following equation: PPVequip = PPVref x (25/D)1.5
TABLE 10‐4: VIBRATION SOURCE LEVELS FOR CONSTRUCTION EQUIPMENT Equipment PPV (in/sec)
at 25 feet
Small bulldozer 0.003
Jackhammer 0.035
Loaded Trucks 0.076
Large bulldozer 0.089
Vibratory Roller 0.210
Caltrans Transportation and Construction Vibration Guidance Manual, April 2020.

Table 10‐5 presents the expected Project related vibration levels at the nearby receiver building façade locations. At distances ranging from 52 to 1,222 feet from the building façade to the Project construction activities, construction vibration velocity levels are estimated to range from

0.00 to 0.07 in/sec PPV. Based on maximum acceptable continuous vibration threshold of 0.3 PPV (in/sec), the typical Project construction vibration levels will fall below the building damage thresholds at all the noise sensitive receiver locations. Therefore, the Project‐related vibration impacts are considered less than significant during typical construction activities at the Project site. Moreover, the vibration levels reported at the sensitive receiver locations are unlikely to be sustained during the entire construction period but will occur rather only during the times that heavy construction equipment is operating adjacent to the Project site perimeter.

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54 TABLE 10‐5: PROJECT CONSTRUCTION VIBRATION LEVELS
Location1
Distance
to
Const.

Activity
(Feet)2
Typical Construction Vibration Levels
PPV (in/sec)3 Thresholds
PPV
(in/sec)4
Thresholds
Exceeded?5 Small
bulldozer Jackhammer Loaded
Trucks
Large
bulldozer
Vibratory
Roller
Highest
Vibration
Level
R1 52' 0.00 0.01 0.03 0.03 0.07 0.07 0.30 No
R2 495' 0.00 0.00 0.00 0.00 0.00 0.00 0.30 No
R3 1,222' 0.00 0.00 0.00 0.00 0.00 0.00 0.30 No
R4 1,122' 0.00 0.00 0.00 0.00 0.00 0.00 0.30 No
R5 193' 0.00 0.00 0.00 0.00 0.01 0.01 0.30 No
R6 231' 0.00 0.00 0.00 0.00 0.01 0.01 0.30 No
1 Receiver locations are shown on Exhibit 10‐A.
2 Distance from receiver building facade to Project construction boundary (Project site boundary). 3 Based on the Vibration Source Levels of Construction Equipment (Table 10‐4). 4 Caltrans Transportation and Construction Vibration Guidance Manual, April 2020, Table 19, p. 38. 5 Does the peak vibration exceed the acceptable vibration thresholds? "PPV" = Peak Particle Velocity
Moreover, the impacts at the site of the nearest sensitive receiver locations are unlikely to be sustained during the entire construction period but will occur rather only during the times that heavy construction equipment is operating adjacent to the Project site perimeter. 6-377

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55 11 REFERENCES

1. State of California. California Environmental Quality Act, Appendix G. 2018.

2. California Department of Transportation Environmental Program. Technical Noise Supplement ‐ A Technical Supplement to the Traffic Noise Analysis Protocol. Sacramento, CA : s.n., September 2013.

3. Environmental Protection Agency Office of Noise Abatement and Control. Information on Levels of Environmental Noise Requisite to Protect Public Health and Welfare with an Adequate Margin of Safety. March 1974. EPA/ONAC 550/9/74‐004.

4. U.S. Department of Transportation, Federal Highway Administration, Office of Environment and Planning, Noise and Air Quality Branch. Highway Traffic Noise Analysis and Abatement Policy and Guidance. December 2011.

5. U.S. Department of Transportation Federal Highway Administration. Highway Noise Barrier Design Handbook. 2001.

6. U.S. Department of Transportation, Federal Highway Administration. Highway Traffic Noise in the United States, Problem and Response. April 2000. p. 3.

7. U.S. Environmental Protection Agency Office of Noise Abatement and Control. Noise Effects Handbook‐A Desk Reference to Health and Welfare Effects of Noise. October 1979 (revised July 1981).

EPA 550/9/82/106.

8. U.S. Department of Transportation, Federal Transit Administration. Transit Noise and Vibration Impact Assessment Manual. September 2018.

9. Office of Planning and Research. State of California General Plan Guidelines. October 2017.

10. State of California. California Code of Regulations, Title 24, Part 2, Volume 1, Chapter 12, Section 1206.4, Allowable Interior Noise Level. ICC Digital Coes. [Online] 2019. https://codes.iccsafe.org/content/CABCV12019/chapter‐ 12‐interior‐environment.

11. —. 2019 California Green Building Standards Code. January 2020.

12. City of Rancho Mirage. Municipal Code, Chapter 8.45 Noise.

13. —. Municipal Code, Sections 15.04.030.

14. —. General Plan Update Draft Environmental Impact Report. 2005.

15. California Department of Transportation. Transportation and Construction Vibration Guidance Manual. April 2020.

16. California Court of Appeal. Gray v. County of Madera, F053661. 167 Cal.App.4th 1099; ‐ Cal.Rptr.3d, October 2008.

17. Federal Interagency Committee on Noise. Federal Agency Review of Selected Airport Noise Analysis Issues. August 1992.

18. California Department of Transportation. Technical Noise Supplement. November 2009.

19. American National Standards Institute (ANSI). Specification for Sound Level Meters ANSI S1.4‐ 2014/IEC 61672‐1:2013.

20. U.S. Department of Transportation, Federal Highway Administration. FHWA Highway Traffic Noise Prediction Model. December 1978. FHWA‐RD‐77‐108.
6-378

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56 21. California Department of Transportation Environmental Program, Office of Environmental Engineering. Use of California Vehicle Noise Reference Energy Mean Emission Levels (Calveno REMELs) in FHWA Highway Traffic Noise Prediction. September 1995. TAN 95‐03.

22. California Department of Transportation. Traffic Noise Attenuation as a Function of Ground and Vegetation Final Report. June 1995. FHWA/CA/TL‐95/23.

23. Urban Crossroads, Inc. Desert Island Hotel Focused Traffic Analysis. 2022.

24. U.S. Department of Transportation, Federal Highway Administration, Office of Environment and Planning. FHWA Roadway Construction Noise Model. January, 2006.

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57 12 CERTIFICATION
The contents of this noise study report represent an accurate depiction of the noise environment and impacts associated with the proposed Desert Island Hotel Project. The information contained in this noise study report is based on the best available data at the time of preparation.

If you have any questions, please contact me directly at (619) 788‐1971.

William Maddux
Senior Associate
URBAN CROSSROADS, INC.
(619) 788‐1971
[email protected]

EDUCATION
Bachelor of Science in Urban and Regional Planning
California Polytechnic State University, Pomona • June 2000 PROFESSIONAL AFFILIATIONS
ASA – Acoustical Society of America
AEP – Association of Environmental Planners
AWMA – Air and Waste Management Association
INCE – Institute of Noise Control Engineers
PROFESSIONAL CERTIFICATIONS
Approved Acoustical Consultant • County of San Diego
FHWA Traffic Noise Model of Training • November 2004
CadnaA Basic and Advanced Training Certificate • October 2008.

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APPENDIX 3.1:

CITY OF RANCHO MIRAGE MUNICIPAL CODE

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61 6-384

62 6-385

63 6-386

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APPENDIX 5.1:

STUDY AREA PHOTOS

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JN: 14747 Study Area Photos
L1_E
33, 46' 20.200000"116, 25' 0.350000"
L1_N
33, 46' 20.230000"116, 25' 0.320000"
L1_S
33, 46' 20.240000"116, 25' 0.320000"
L1_W
33, 46' 20.210000"116, 25' 0.350000"
L2_E
33, 46' 12.500000"116, 24' 43.400000"
L2_N
33, 46' 12.540000"116, 24' 43.370000"
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JN: 14747 Study Area Photos
L2_S
33, 46' 12.520000"116, 24' 43.460000"
L2_W
33, 46' 12.500000"116, 24' 43.400000"
L3_E
33, 46' 3.620000"116, 24' 40.330000"
L3_N
33, 46' 3.830000"116, 24' 40.410000"
L3_S
33, 46' 3.680000"116, 24' 40.410000"
L3_W
33, 46' 3.650000"116, 24' 40.330000"
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JN: 14747 Study Area Photos
L4_E
33, 45' 59.410000"116, 24' 44.770000"
L4_N
33, 45' 59.600000"116, 24' 44.800000"
L4_S
33, 45' 59.610000"116, 24' 44.800000"
L4_W
33, 45' 59.440000"116, 24' 44.770000"
L5_E
33, 46' 17.040000"116, 25' 0.600000"
L5_N
33, 46' 17.060000"116, 25' 0.570000"
69 6-392

JN: 14747 Study Area Photos
L5_S
33, 46' 17.030000"116, 25' 0.620000"
L5_W
33, 46' 17.060000"116, 25' 0.600000"
L6_E
33, 46' 13.680000"116, 25' 0.600000"
L6_N
33, 46' 13.570000"116, 25' 0.620000"
L6_S
33, 46' 13.570000"116, 25' 0.600000"
L6_W
33, 46' 13.620000"116, 25' 0.600000"
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APPENDIX 5.2:

NOISE LEVEL MEASUREMENT WORKSHEETS

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Date:Location:Meter:Piccolo II JN:14747
Project:2717 Desert Island Source:Analyst:A. Khan
Timeframe Hour L eq L max L min L1%L2%L5%L8%L25%L50%L90%L95%L99%L eq Adj.Adj. L eq 0 57.0 71.0 36.7 70.3 69.0 65.1 61.4 48.0 41.0 37.5 37.2 36.8 57.0 10.0 67.0 1 57.6 72.4 36.4 71.8 70.3 65.0 60.3 45.6 40.3 37.0 36.8 36.5 57.6 10.0 67.6 2 54.5 68.3 39.1 67.6 66.3 62.4 59.2 46.7 41.9 39.7 39.5 39.2 54.5 10.0 64.5 3 57.1 71.1 38.5 70.4 69.1 64.7 61.5 49.5 42.8 39.2 38.9 38.6 57.1 10.0 67.1 4 59.5 72.7 42.4 72.0 70.7 67.0 64.6 55.8 47.4 43.0 42.8 42.5 59.5 10.0 69.5 5 67.1 78.3 53.1 77.7 76.6 74.0 72.4 66.2 61.5 54.9 54.1 53.3 67.1 10.0 77.1 6 69.6 80.4 52.5 79.7 78.6 76.1 74.7 69.8 63.7 54.4 53.4 52.7 69.6 10.0 79.6 7 72.3 83.4 54.8 82.7 81.5 78.3 76.5 72.7 68.2 57.9 56.0 55.0 72.3 0.0 72.3 8 72.2 81.1 59.8 80.5 79.5 77.6 76.5 73.5 69.1 62.0 61.1 60.1 72.2 0.0 72.2 9 72.5 80.3 59.3 79.8 79.1 77.8 76.9 73.8 70.1 62.2 61.0 59.6 72.5 0.0 72.5 10 70.6 79.9 51.6 79.2 78.3 76.5 75.5 71.7 67.3 56.8 54.4 51.9 70.6 0.0 70.6 11 71.5 84.0 52.2 83.0 81.5 77.4 75.2 71.1 66.8 56.0 54.0 52.4 71.5 0.0 71.5 12 69.7 78.8 50.6 78.2 77.4 75.6 74.6 70.9 66.4 54.9 52.6 50.8 69.7 0.0 69.7 13 69.6 79.7 51.0 79.1 78.1 75.5 74.1 70.4 65.8 55.3 53.0 51.3 69.6 0.0 69.6 14 70.3 80.4 50.6 79.7 78.6 75.9 74.7 71.1 67.0 55.7 53.3 51.1 70.3 0.0 70.3 15 70.3 79.4 50.8 78.8 77.9 76.0 74.9 71.6 67.3 56.6 53.7 51.1 70.3 0.0 70.3 16 70.3 79.9 49.0 79.2 78.1 76.0 74.9 71.5 66.8 54.2 51.3 49.4 70.3 0.0 70.3 17 70.8 82.0 49.4 81.3 79.9 76.8 75.3 71.1 66.3 54.2 52.1 49.9 70.8 0.0 70.8 18 69.0 78.6 47.3 78.0 77.1 75.4 74.4 70.1 63.8 51.2 49.9 47.8 69.0 0.0 69.0 19 66.8 77.8 46.3 77.1 76.1 73.6 72.3 66.8 59.0 48.3 47.0 46.6 66.8 5.0 71.8 20 66.4 78.5 43.9 77.8 76.7 73.5 71.6 65.5 57.4 46.2 44.9 44.0 66.4 5.0 71.4 21 65.6 77.1 45.3 76.4 75.3 72.8 71.3 64.9 56.3 46.7 46.0 45.4 65.6 5.0 70.6 22 62.9 75.3 41.2 74.7 73.6 70.4 68.3 60.3 51.0 42.5 42.0 41.4 62.9 10.0 72.9 23 63.1 76.6 40.4 75.7 74.2 70.3 68.1 59.7 50.8 42.1 41.3 40.6 63.1 10.0 73.1 Timeframe Hour L eq L max L min L1%L2%L5%L8%L25%L50%L90%L95%L99% Min 65.6 77.1 43.9 76.4 75.3 72.8 71.3 64.9 56.3 46.2 44.9 44.0 Max 72.5 84.0 59.8 83.0 81.5 78.3 76.9 73.8 70.1 62.2 61.1 60.1

70.3 79.4 78.3 75.9 74.6 70.5 65.2 54.5 52.7 51.1
Min 54.5 68.3 36.4 67.6 66.3 62.4 59.2 45.6 40.3 37.0 36.8 36.5 Max 69.6 80.4 53.1 79.7 78.6 76.1 74.7 69.8 63.7 54.9 54.1 53.3

63.7 73.3 72.0 68.3 65.6 55.7 48.9 43.4 42.9 42.4
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour Daytime
(7am-10pm)
Nighttime
(10pm-7am)

68.8 70.3 63.7
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Tuesday, April 5, 2022 L1 - Located northwest of the Project site near single-family residence at 1 Von Dehn Road.

Night
Day
57 .
0 57
.
6 54
.
5 57
.
1 59
.
5 67
.
1 69
.
6 72
.
3 72
.
2 72
.
5 70
.
6 71
.
5 69
.
7 69
.
6 70
.
3 70
.
3 70
.
3 70
.
8 69
.
0 66
.
8 66
.
4 65
.
6 62
.
9 63
.
1 35.040.045.050.055.060.065.070.075.080.085.0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Ho
u
r
l
y

L
eq
(d
B
A
)
Hour Beginning
Z:\Shared\UcJobs\_14600-15000\14700\14747\04_Noise\Fieldwork\Measurement\14747_L1_G 73 6-396

Date:Location:Meter:Piccolo II JN:14747
Project:2717 Desert Island Source:Analyst:A. Khan
Timeframe Hour L eq L max L min L1%L2%L5%L8%L25%L50%L90%L95%L99%L eq Adj.Adj. L eq 0 46.1 51.1 42.5 50.8 50.4 49.7 49.2 47.2 45.2 42.8 42.7 42.5 46.1 10.0 56.1 1 44.0 48.3 41.9 48.1 47.7 46.8 46.0 44.4 43.3 42.3 42.1 41.9 44.0 10.0 54.0 2 45.6 53.5 40.7 53.3 52.9 52.2 50.9 44.6 42.2 41.0 40.9 40.7 45.6 10.0 55.6 3 42.9 47.1 40.3 46.8 46.4 45.5 45.0 43.6 42.4 40.8 40.6 40.4 42.9 10.0 52.9 4 45.8 52.3 43.2 51.8 51.3 49.7 47.6 45.8 45.0 43.8 43.5 43.3 45.8 10.0 55.8 5 48.4 53.5 45.1 53.2 52.6 51.7 51.0 49.3 47.4 45.7 45.5 45.2 48.4 10.0 58.4 6 55.6 62.1 53.0 61.1 60.1 58.2 57.3 55.9 55.0 53.7 53.5 53.2 55.6 10.0 65.6 7 57.4 61.8 55.0 61.5 61.2 60.0 59.3 57.8 56.9 55.6 55.3 55.1 57.4 0.0 57.4 8 53.4 60.9 50.3 60.4 59.9 57.9 56.3 53.3 52.0 50.8 50.6 50.4 53.4 0.0 53.4 9 55.3 62.7 48.2 62.0 61.4 59.9 58.8 56.0 53.8 50.2 49.4 48.5 55.3 0.0 55.3 10 52.7 62.5 46.2 61.9 61.2 59.0 56.8 51.9 49.6 47.2 46.8 46.3 52.7 0.0 52.7 11 52.8 62.9 45.7 61.8 60.8 58.3 56.9 53.1 49.8 46.6 46.3 45.9 52.8 0.0 52.8 12 56.7 63.4 48.2 63.2 62.8 61.7 60.7 57.2 55.4 51.0 49.6 48.5 56.7 0.0 56.7 13 57.3 66.0 45.8 65.7 65.3 63.6 62.5 57.9 53.3 46.8 46.4 45.9 57.3 0.0 57.3 14 53.8 66.7 43.5 66.0 64.7 60.6 57.4 51.4 47.8 44.3 43.9 43.6 53.8 0.0 53.8 15 56.7 67.3 48.7 65.8 64.8 61.9 60.6 57.2 53.6 49.3 49.1 48.8 56.7 0.0 56.7 16 49.6 58.7 43.1 58.3 57.8 55.6 53.6 49.6 46.8 44.0 43.6 43.2 49.6 0.0 49.6 17 51.0 61.6 43.6 60.7 59.6 57.2 55.1 50.4 47.7 44.6 44.3 43.8 51.0 0.0 51.0 18 49.2 58.5 43.5 58.1 57.4 54.7 52.6 49.0 46.5 44.5 44.2 43.7 49.2 0.0 49.2 19 49.3 57.4 43.4 56.9 56.5 55.0 53.5 49.8 46.6 44.0 43.8 43.5 49.3 5.0 54.3 20 48.2 55.4 44.9 54.8 54.2 52.6 51.2 48.2 46.9 45.5 45.3 45.0 48.2 5.0 53.2 21 48.8 54.8 44.7 54.4 54.1 53.0 52.1 49.5 47.4 45.4 45.1 44.8 48.8 5.0 53.8 22 47.6 51.8 44.7 51.5 51.2 50.5 49.9 48.3 47.0 45.2 45.0 44.8 47.6 10.0 57.6 23 46.5 51.9 43.3 51.6 51.2 49.8 49.2 47.0 45.6 43.9 43.7 43.4 46.5 10.0 56.5 Timeframe Hour L eq L max L min L1%L2%L5%L8%L25%L50%L90%L95%L99% Min 48.2 54.8 43.1 54.4 54.1 52.6 51.2 48.2 46.5 44.0 43.6 43.2 Max 57.4 67.3 55.0 66.0 65.3 63.6 62.5 57.9 56.9 55.6 55.3 55.1

53.9 60.8 60.1 58.1 56.5 52.8 50.3 47.3 46.9 46.5
Min 42.9 47.1 40.3 46.8 46.4 45.5 45.0 43.6 42.2 40.8 40.6 40.4 Max 55.6 62.1 53.0 61.1 60.1 58.2 57.3 55.9 55.0 53.7 53.5 53.2

48.9 52.0 51.5 50.5 49.6 47.3 45.9 44.4 44.2 43.9
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Wednesday, March 23, 2022 L2 - Located south of the Project site near multi-family residence at 910 Island Drive.

Night
Day
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour Daytime
(7am-10pm)
Nighttime
(10pm-7am)

52.6 53.9 48.9
46 .
1 44
.
0 45
.
6 42
.
9 45
.
8 48
.
4 55
.
6 57
.
4 53
.
4 55
.
3 52
.
7 52
.
8 56
.
7 57
.
3 53
.
8 56
.
7 49
.
6 51
.
0 49
.
2 49
.
3 48
.
2 48
.
8 47
.
6 46
.
5 35.040.045.050.055.060.065.070.075.080.085.0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Ho
u
r
l
y

L
eq
(d
B
A
)
Hour Beginning
Z:\Shared\UcJobs\_14600-15000\14700\14747\04_Noise\Fieldwork\Measurement\14747_L2_J 74 6-397

Date:Location:Meter:Piccolo II JN:14747
Project:2717 Desert Island Source:Analyst:A. Khan
Timeframe Hour L eq L max L min L1%L2%L5%L8%L25%L50%L90%L95%L99%L eq Adj.Adj. L eq 0 47.6 52.9 44.0 52.5 52.2 51.3 50.8 48.7 46.2 44.5 44.3 44.0 47.6 10.0 57.6 1 44.5 48.2 42.6 47.8 47.5 47.0 46.5 45.0 44.0 43.0 42.9 42.6 44.5 10.0 54.5 2 46.6 53.1 41.3 52.8 52.6 52.1 51.6 47.0 43.8 41.8 41.6 41.4 46.6 10.0 56.6 3 45.3 47.9 43.6 47.7 47.5 47.0 46.7 45.9 45.1 44.0 43.8 43.6 45.3 10.0 55.3 4 48.3 51.9 46.6 51.7 51.4 50.4 49.8 48.7 48.0 47.0 46.8 46.7 48.3 10.0 58.3 5 48.6 52.3 46.2 52.0 51.7 51.0 50.5 49.0 48.1 46.8 46.6 46.3 48.6 10.0 58.6 6 52.4 58.6 49.8 57.9 57.6 56.4 54.8 52.3 51.6 50.3 50.1 49.9 52.4 10.0 62.4 7 56.6 59.6 54.0 59.3 59.1 58.7 58.5 57.6 56.1 54.7 54.4 54.1 56.6 0.0 56.6 8 58.3 63.9 54.8 63.0 62.5 61.3 60.6 58.9 57.7 55.8 55.3 54.9 58.3 0.0 58.3 9 57.1 62.3 50.8 61.8 61.4 60.9 60.5 58.2 56.1 52.5 51.7 51.0 57.1 0.0 57.1 10 50.4 56.7 46.5 56.0 55.4 54.0 53.4 51.0 49.6 47.3 46.9 46.6 50.4 0.0 50.4 11 50.2 55.8 46.0 55.2 54.7 53.8 53.2 51.4 49.1 46.8 46.5 46.1 50.2 0.0 50.2 12 54.2 68.4 44.3 66.7 64.7 59.4 57.5 52.5 48.2 45.3 44.9 44.5 54.2 0.0 54.2 13 49.5 55.6 44.5 55.1 54.7 54.0 53.2 50.4 47.8 45.2 45.0 44.6 49.5 0.0 49.5 14 48.0 56.0 43.0 55.2 54.5 52.6 51.6 48.6 46.0 43.7 43.4 43.1 48.0 0.0 48.0 15 49.4 55.9 43.6 55.4 54.9 53.8 53.2 50.6 47.5 44.8 44.2 43.7 49.4 0.0 49.4 16 49.3 54.7 46.4 54.2 53.6 52.5 52.0 49.7 48.6 46.7 46.6 46.4 49.3 0.0 49.3 17 46.5 51.7 43.0 51.0 50.6 49.7 49.2 47.4 45.5 43.7 43.5 43.2 46.5 0.0 46.5 18 47.6 52.7 44.5 52.3 51.9 50.8 50.1 48.4 46.6 45.0 44.8 44.6 47.6 0.0 47.6 19 47.8 53.1 44.4 52.7 52.2 51.3 50.7 48.5 46.7 45.0 44.8 44.5 47.8 5.0 52.8 20 46.7 50.6 44.0 50.4 50.2 49.3 48.9 47.3 46.1 44.7 44.4 44.1 46.7 5.0 51.7 21 47.9 53.5 44.3 53.2 52.7 51.6 51.2 48.7 46.6 44.8 44.6 44.3 47.9 5.0 52.9 22 46.2 50.3 43.7 49.9 49.5 48.8 48.3 46.8 45.6 44.2 44.0 43.8 46.2 10.0 56.2 23 46.0 49.8 43.6 49.5 49.2 48.6 48.2 46.8 45.2 44.1 43.9 43.7 46.0 10.0 56.0 Timeframe Hour L eq L max L min L1%L2%L5%L8%L25%L50%L90%L95%L99% Min 46.5 50.6 43.0 50.4 50.2 49.3 48.9 47.3 45.5 43.7 43.4 43.1 Max 58.3 68.4 54.8 66.7 64.7 61.3 60.6 58.9 57.7 55.8 55.3 54.9

52.6 56.1 55.5 54.2 53.6 51.3 49.2 47.1 46.7 46.4
Min 44.5 47.9 41.3 47.7 47.5 47.0 46.5 45.0 43.8 41.8 41.6 41.4 Max 52.4 58.6 49.8 57.9 57.6 56.4 54.8 52.3 51.6 50.3 50.1 49.9

47.9 51.3 51.0 50.3 49.7 47.8 46.4 45.1 44.9 44.7
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour Daytime
(7am-10pm)
Nighttime
(10pm-7am)

51.4 52.6 47.9
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Wednesday, March 23, 2022 L3 - Located south of the Project site near multi-family residence at 900 Island Drive.

Night
Day
47 .
6 44
.
5 46
.
6 45
.
3 48
.
3 48
.
6 52
.
4 56
.
6 58
.
3 57
.
1 50
.
4 50
.
2 54
.
2 49
.
5 48
.
0 49
.
4 49
.
3 46
.
5 47
.
6 47
.
8 46
.
7 47
.
9 46
.
2 46
.
0 35.040.045.050.055.060.065.070.075.080.085.0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Ho
u
r
l
y

L
eq
(d
B
A
)
Hour Beginning
Z:\Shared\UcJobs\_14600-15000\14700\14747\04_Noise\Fieldwork\Measurement\14747_L3_T 75 6-398

Date:Location:Meter:Piccolo II JN:14747
Project:2717 Desert Island Source:Analyst:A. Khan
Timeframe Hour L eq L max L min L1%L2%L5%L8%L25%L50%L90%L95%L99%L eq Adj.Adj. L eq 0 43.4 47.8 39.8 47.5 47.3 46.7 46.3 44.6 42.5 40.3 40.1 39.9 43.4 10.0 53.4 1 38.6 42.1 37.4 41.8 41.5 40.7 40.1 38.7 38.3 37.7 37.6 37.5 38.6 10.0 48.6 2 43.2 49.6 37.6 49.4 49.3 48.8 48.4 43.5 40.1 38.1 37.9 37.7 43.2 10.0 53.2 3 42.6 45.6 41.1 45.2 44.8 44.2 43.8 43.1 42.3 41.4 41.3 41.2 42.6 10.0 52.6 4 45.5 48.9 43.9 48.5 48.2 47.6 47.2 45.9 45.1 44.3 44.2 44.0 45.5 10.0 55.5 5 44.1 48.3 42.3 47.8 47.4 46.5 45.8 44.4 43.7 42.8 42.6 42.4 44.1 10.0 54.1 6 50.9 53.6 48.6 53.3 53.1 52.8 52.5 51.5 50.6 49.3 49.1 48.8 50.9 10.0 60.9 7 51.7 54.8 49.5 54.5 54.3 53.8 53.4 52.3 51.3 50.1 49.9 49.6 51.7 0.0 51.7 8 50.5 57.8 46.7 57.0 56.5 55.2 54.1 50.8 48.8 47.4 47.2 46.9 50.5 0.0 50.5 9 50.7 57.1 45.8 56.6 56.0 55.1 54.6 51.5 48.9 46.7 46.4 46.0 50.7 0.0 50.7 10 46.6 52.7 43.3 52.0 51.4 50.2 49.4 47.1 45.5 44.0 43.7 43.5 46.6 0.0 46.6 11 48.4 55.6 42.9 54.7 54.0 52.9 52.2 49.6 46.0 43.7 43.4 43.1 48.4 0.0 48.4 12 47.9 54.5 43.5 53.9 53.2 52.1 51.1 48.6 46.3 44.4 44.0 43.7 47.9 0.0 47.9 13 51.5 58.8 43.4 58.3 58.0 57.3 56.6 52.2 48.1 44.4 44.1 43.8 51.5 0.0 51.5 14 45.8 52.5 40.9 51.9 51.5 50.2 49.4 46.8 44.2 41.6 41.3 41.1 45.8 0.0 45.8 15 49.0 57.2 40.3 56.6 55.9 54.4 53.7 50.5 45.1 41.4 41.0 40.5 49.0 0.0 49.0 16 45.3 53.3 39.7 52.6 52.0 50.4 49.2 46.1 43.1 40.3 40.1 39.8 45.3 0.0 45.3 17 45.0 51.6 40.4 51.0 50.3 48.8 48.1 46.0 43.7 41.1 40.9 40.6 45.0 0.0 45.0 18 45.7 51.4 41.8 51.0 50.7 49.7 49.0 46.7 44.2 42.5 42.2 41.9 45.7 0.0 45.7 19 47.5 52.9 42.9 52.5 52.0 51.3 50.9 48.9 45.9 43.7 43.4 43.1 47.5 5.0 52.5 20 44.4 49.8 42.1 49.2 48.4 47.4 46.6 45.0 43.7 42.6 42.4 42.2 44.4 5.0 49.4 21 46.5 53.2 40.4 52.9 52.7 51.9 51.5 47.4 42.7 40.9 40.7 40.5 46.5 5.0 51.5 22 40.4 44.6 38.1 44.1 43.6 42.7 42.3 41.0 39.9 38.6 38.4 38.2 40.4 10.0 50.4 23 42.9 48.5 38.3 48.0 47.6 47.0 46.5 43.9 41.5 38.9 38.7 38.5 42.9 10.0 52.9 Timeframe Hour L eq L max L min L1%L2%L5%L8%L25%L50%L90%L95%L99% Min 44.4 49.8 39.7 49.2 48.4 47.4 46.6 45.0 42.7 40.3 40.1 39.8 Max 51.7 58.8 49.5 58.3 58.0 57.3 56.6 52.3 51.3 50.1 49.9 49.6

48.4 53.6 53.1 52.1 51.3 48.6 45.8 43.7 43.4 43.1
Min 38.6 42.1 37.4 41.8 41.5 40.7 40.1 38.7 38.3 37.7 37.6 37.5 Max 50.9 53.6 48.6 53.3 53.1 52.8 52.5 51.5 50.6 49.3 49.1 48.8

45.0 47.3 47.0 46.3 45.9 44.1 42.7 41.3 41.1 40.9
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour Daytime
(7am-10pm)
Nighttime
(10pm-7am)

47.4 48.4 45.0
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Wednesday, March 23, 2022 L4 - Located south of the Project site near multi-family residence at 899 Island Drive.

Night
Day
43 .
4 38
.
6 43
.
2 42
.
6 45
.
5 44
.
1 50
.
9 51
.
7 50
.
5 50
.
7 46
.
6 48
.
4 47
.
9 51
.
5 45
.
8 49
.
0 45
.
3 45
.
0 45
.
7 47
.
5 44
.
4 46
.
5 40
.
4 42
.
9 35.040.045.050.055.060.065.070.075.080.085.0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Ho
u
r
l
y

L
eq
(d
B
A
)
Hour Beginning
Z:\Shared\UcJobs\_14600-15000\14700\14747\04_Noise\Fieldwork\Measurement\14747_L4_X 76 6-399

Date:Location:Meter:Piccolo II JN:14747
Project:2717 Desert Island Source:Analyst:A. Khan
Timeframe Hour L eq L max L min L1%L2%L5%L8%L25%L50%L90%L95%L99%L eq Adj.Adj. L eq 0 40.4 45.0 37.5 44.8 44.5 43.7 43.0 41.1 39.6 38.0 37.8 37.6 40.4 10.0 50.4 1 43.9 51.0 39.6 50.3 49.9 48.8 47.8 44.3 42.1 40.1 39.9 39.7 43.9 10.0 53.9 2 42.5 49.1 39.3 48.7 48.2 47.1 45.7 42.7 41.0 39.7 39.6 39.3 42.5 10.0 52.5 3 46.0 53.0 42.0 52.8 52.4 51.4 49.9 45.8 43.8 42.5 42.3 42.1 46.0 10.0 56.0 4 46.6 49.2 44.7 49.0 48.8 48.4 48.2 47.2 46.2 45.2 45.1 44.9 46.6 10.0 56.6 5 55.8 60.4 51.3 60.2 60.0 59.5 58.8 56.8 54.9 52.6 52.0 51.5 55.8 10.0 65.8 6 57.4 62.0 54.5 61.6 61.4 60.3 59.6 58.0 56.9 55.1 54.9 54.6 57.4 10.0 67.4 7 57.2 60.5 54.8 60.3 60.1 59.4 59.0 57.7 56.8 55.6 55.3 55.0 57.2 0.0 57.2 8 56.0 59.8 52.7 59.5 59.3 58.8 58.5 56.7 55.3 53.4 53.2 52.8 56.0 0.0 56.0 9 50.7 54.5 47.2 54.2 54.0 53.5 53.0 51.4 50.2 48.0 47.7 47.3 50.7 0.0 50.7 10 48.8 55.1 42.7 54.6 54.3 53.5 52.9 49.9 47.1 43.9 43.4 42.8 48.8 0.0 48.8 11 55.2 59.6 52.5 59.4 59.1 58.3 57.6 55.6 54.4 53.1 52.9 52.6 55.2 0.0 55.2 12 54.1 60.6 48.2 60.1 59.7 58.3 57.6 55.4 52.3 49.2 48.8 48.3 54.1 0.0 54.1 13 52.7 70.3 49.2 68.5 66.6 64.5 63.7 58.6 54.9 50.5 50.0 49.4 52.7 0.0 52.7 14 50.6 59.6 44.1 59.1 58.7 57.3 56.6 53.9 49.0 45.1 44.7 44.2 50.6 0.0 50.6 15 49.6 56.3 43.1 55.8 55.3 54.6 54.0 50.5 47.5 44.2 43.7 43.3 49.6 0.0 49.6 16 48.9 54.8 42.9 54.5 54.2 53.5 52.7 49.9 47.6 44.1 43.6 43.1 48.9 0.0 48.9 17 50.3 57.6 43.1 57.2 56.7 55.9 54.8 50.8 47.9 44.2 43.7 43.2 50.3 0.0 50.3 18 48.2 54.6 43.4 54.1 53.3 52.1 51.3 48.9 47.1 44.2 43.9 43.6 48.2 0.0 48.2 19 49.8 56.5 44.3 56.1 55.8 55.1 54.2 50.4 47.5 45.1 44.8 44.4 49.8 5.0 54.8 20 49.6 55.1 45.0 54.8 54.5 53.9 53.4 50.4 48.0 45.7 45.4 45.2 49.6 5.0 54.6 21 49.5 56.5 45.4 55.8 55.1 53.7 53.0 50.0 47.9 46.0 45.8 45.5 49.5 5.0 54.5 22 44.6 49.0 40.8 48.8 48.6 48.0 47.5 45.5 43.7 41.6 41.3 40.9 44.6 10.0 54.6 23 46.5 53.9 39.5 53.5 53.2 52.4 51.6 47.1 43.4 40.2 40.0 39.6 46.5 10.0 56.5 Timeframe Hour L eq L max L min L1%L2%L5%L8%L25%L50%L90%L95%L99% Min 48.2 54.5 42.7 54.1 53.3 52.1 51.3 48.9 47.1 43.9 43.4 42.8 Max 57.2 70.3 54.8 68.5 66.6 64.5 63.7 58.6 56.8 55.6 55.3 55.0

52.4 57.6 57.1 56.2 55.5 52.7 50.2 47.5 47.1 46.7
Min 40.4 45.0 37.5 44.8 44.5 43.7 43.0 41.1 39.6 38.0 37.8 37.6 Max 57.4 62.0 54.5 61.6 61.4 60.3 59.6 58.0 56.9 55.1 54.9 54.6

51.0 52.2 51.9 51.1 50.2 47.6 45.7 43.9 43.6 43.4
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour Daytime
(7am-10pm)
Nighttime
(10pm-7am)

51.9 52.4 51.0
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Tuesday, April 5, 2022 L5 - Located southwest of the Project site near single-family residence at 3 Vohn Dehn Road.

Night
Day
40 .
4 43
.
9 42
.
5 46
.
0 46
.
6 55
.
8 57
.
4 57
.
2 56
.
0 50
.
7 48
.
8 55
.
2 54
.
1 52
.
7 50
.
6 49
.
6 48
.
9 50
.
3 48
.
2 49
.
8 49
.
6 49
.
5 44
.
6 46
.
5 35.040.045.050.055.060.065.070.075.080.085.0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Ho
u
r
l
y

L
eq
(d
B
A
)
Hour Beginning
Z:\Shared\UcJobs\_14600-15000\14700\14747\04_Noise\Fieldwork\Measurement\14747_L5_O 77 6-400

Date:Location:Meter:Piccolo II JN:14747
Project:2717 Desert Island Source:Analyst:A. Khan
Timeframe Hour L eq L max L min L1%L2%L5%L8%L25%L50%L90%L95%L99%L eq Adj.Adj. L eq 0 42.8 46.3 40.3 45.9 45.6 45.0 44.7 43.5 42.4 40.9 40.7 40.4 42.8 10.0 52.8 1 46.2 51.1 43.3 50.8 50.4 49.4 48.8 46.9 45.2 43.8 43.5 43.4 46.2 10.0 56.2 2 44.5 49.5 42.2 49.1 48.8 47.4 46.7 44.7 43.7 42.8 42.5 42.3 44.5 10.0 54.5 3 48.7 55.1 44.3 54.8 54.7 53.9 53.3 48.7 46.7 44.8 44.6 44.4 48.7 10.0 58.7 4 48.3 50.5 46.6 50.3 50.1 49.7 49.5 48.8 48.0 47.0 46.8 46.6 48.3 10.0 58.3 5 54.7 58.6 50.8 58.4 58.3 57.7 57.2 55.8 54.2 51.8 51.3 51.0 54.7 10.0 64.7 6 58.8 64.6 56.6 64.2 63.9 63.0 62.5 59.9 58.7 57.2 57.0 56.7 58.8 10.0 68.8 7 58.7 61.0 56.8 60.8 60.5 60.1 59.8 59.2 58.5 57.4 57.2 56.9 58.7 0.0 58.7 8 54.7 60.0 53.3 59.7 59.5 59.1 58.8 57.7 56.4 54.2 53.9 53.4 54.7 0.0 54.7 9 50.1 55.0 47.4 54.3 53.7 52.8 52.3 50.6 49.6 48.2 47.9 47.6 50.1 0.0 50.1 10 51.4 58.9 44.2 58.5 57.9 57.0 56.2 51.7 48.8 45.5 45.0 44.4 51.4 0.0 51.4 11 56.8 63.4 52.9 62.8 62.4 61.0 59.9 57.2 55.5 53.7 53.4 53.1 56.8 0.0 56.8 12 55.2 63.2 50.6 62.6 62.2 61.2 60.5 57.0 54.2 51.6 51.2 50.7 55.2 0.0 55.2 13 55.6 72.9 49.7 71.8 70.9 66.0 63.8 59.4 56.2 51.3 50.7 49.9 55.6 0.0 55.6 14 51.9 63.5 45.6 62.7 62.1 60.9 60.1 55.3 50.3 46.5 46.1 45.8 51.9 0.0 51.9 15 50.5 57.1 44.4 56.8 56.6 56.0 55.2 51.2 47.4 45.2 44.8 44.5 50.5 0.0 50.5 16 50.3 55.9 45.8 55.4 54.9 54.2 53.7 51.2 48.8 46.5 46.2 45.9 50.3 0.0 50.3 17 52.3 59.7 44.6 59.3 58.9 58.2 57.3 53.1 49.0 45.5 45.2 44.7 52.3 0.0 52.3 18 48.6 52.9 44.7 52.6 52.4 51.6 51.2 49.6 47.9 45.5 45.2 44.9 48.6 0.0 48.6 19 51.9 58.6 46.2 58.3 58.0 57.2 56.3 52.8 49.3 46.9 46.7 46.4 51.9 5.0 56.9 20 50.8 55.7 46.7 55.5 55.3 54.5 53.9 51.8 49.8 47.3 47.0 46.8 50.8 5.0 55.8 21 52.0 58.3 47.6 57.8 57.3 56.4 55.8 52.9 50.1 48.2 48.0 47.7 52.0 5.0 57.0 22 45.5 49.8 42.7 49.5 49.1 48.4 48.0 46.0 44.8 43.3 43.1 42.8 45.5 10.0 55.5 23 48.9 62.0 43.5 59.5 58.4 56.4 55.3 50.7 46.5 44.1 43.8 43.6 48.9 10.0 58.9 Timeframe Hour L eq L max L min L1%L2%L5%L8%L25%L50%L90%L95%L99% Min 48.6 52.9 44.2 52.6 52.4 51.6 51.2 49.6 47.4 45.2 44.8 44.4 Max 58.7 72.9 56.8 71.8 70.9 66.0 63.8 59.4 58.5 57.4 57.2 56.9

53.7 59.3 58.9 57.7 57.0 54.1 51.5 48.9 48.6 48.2
Min 42.8 46.3 40.3 45.9 45.6 45.0 44.7 43.5 42.4 40.9 40.7 40.4 Max 58.8 64.6 56.6 64.2 63.9 63.0 62.5 59.9 58.7 57.2 57.0 56.7

51.9 53.6 53.3 52.3 51.8 49.4 47.8 46.2 45.9 45.7
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Tuesday, April 5, 2022 L6 - Located west of the Project site near single-family residence at 1 Vohn Dehn Road.

Night
Day
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour Daytime
(7am-10pm)
Nighttime
(10pm-7am)

53.1 53.7 51.9
42 .
8 46
.
2 44
.
5 48
.
7 48
.
3 54
.
7 58
.
8 58
.
7 54
.
7 50
.
1 51
.
4 56
.
8 55
.
2 55
.
6 51
.
9 50
.
5 50
.
3 52
.
3 48
.
6 51
.
9 50
.
8 52
.
0 45
.
5 48
.
9 35.040.045.050.055.060.065.070.075.080.085.0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Ho
u
r
l
y

L
eq
(d
B
A
)
Hour Beginning
Z:\Shared\UcJobs\_14600-15000\14700\14747\04_Noise\Fieldwork\Measurement\14747_L6_H 78 6-401

Desert Island Hotel Noise and Vibration Impact Analysis 14747‐03 Noise Study.docx

APPENDIX 7.1:

OFF‐SITE TRAFFIC NOISE LEVEL CALCULATIONS

79 6-402

Desert Island Hotel Noise and Vibration Impact Analysis 14747‐03 Noise Study.docx

This page intentionally left blank
80 6-403

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:w/o Island Drive
Road Name:Frank Sinatra Drive
Scenario:E
13,700

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,370 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Highway Data
feet
feet
vehicles
Road Elevation:0.0
Road Grade:0.0%
Pad Elevation:0.0
Site Data
Site Conditions (Hard = 10, Soft = 15)
Medium Trucks (2 Axles):15
Heavy Trucks (3+ Axles):15
Autos:15
Vehicle Mix
feet
feet Lane Equivalent Distance (in feet)
Barrier Height:0.0
Observer Height (Above Pad):5.0 feet
feet
45 mphVehicle Speed:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance
-0.58
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -17.82 0.33 -1.20 0.000 0.000

84.25 -21.78 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

67.0 65.1 63.3 57.3 66.565.9

60.8 61.6

59.2 52.9 51.3 60.059.8

60.2 51.1 52.4 60.960.7
Vehicle Noise:68.8 67.1 63.9 59.2 68.267.8
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
39 84 392182
42 91 420195
Tuesday, May 24, 2022
81 6-404

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:e/o Island Drive
Road Name:Frank Sinatra Drive
Scenario:E
13,300

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,330 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance
-0.71
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -17.95 0.33 -1.20 0.000 0.000

84.25 -21.91 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

66.8 64.9 63.2 57.1 66.465.8

60.6 61.5

59.1 52.8 51.2 59.959.7

60.0 51.0 52.3 60.760.6
Vehicle Noise:68.7 66.9 63.8 59.1 68.167.7
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
38 83 384178
41 89 412191
Tuesday, May 24, 2022
82 6-405

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:e/o Bob Hope Drive
Road Name:Frank Sinatra Drive
Scenario:E
13,100

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,310 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance
-0.78
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -18.02 0.33 -1.20 0.000 0.000

84.25 -21.97 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

66.8 64.9 63.1 57.1 66.365.7

60.6 61.4

59.1 52.7 51.1 59.859.6

60.0 50.9 52.2 60.760.6
Vehicle Noise:68.6 66.9 63.7 59.1 68.167.6
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
38 82 380177
41 88 408189
Tuesday, May 24, 2022
83 6-406

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:n/o Frank Sinatra Drive
Road Name:Bob Hope Drive
Scenario:E
18,600

10.00%

60.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,860 vehicles
Centerline Dist. to Barrier:

60.0Centerline Dist. to Observer:

Near/Far Lane Distance:86 feet
REMEL Traffic Flow Distance

0.74 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

1.01 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -16.49 1.04 -1.20 0.000 0.000

84.25 -20.45 1.04 -1.20 0.000 0.000
-4.69
-4.88
-5.34
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

42.143

41.932

41.953
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

69.0 67.1 65.3 59.3 68.567.9

62.8 63.6

61.3 54.9 53.4 62.161.8

62.2 53.2 54.4 62.962.8
Vehicle Noise:70.9 69.1 66.0 61.3 70.369.8
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
58 126 585271
63 135 627291
Tuesday, May 24, 2022
84 6-407

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:s/o Frank Sinatra Drive
Road Name:Bob Hope Drive
Scenario:E
21,300

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:2,130 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance

1.33 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -15.91 0.33 -1.20 0.000 0.000

84.25 -19.86 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

68.9 67.0 65.2 59.2 68.467.8

62.7 63.5

61.2 54.8 53.3 61.961.7

62.1 53.1 54.3 62.862.7
Vehicle Noise:70.7 69.0 65.8 61.2 70.269.7
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
53 113 526244
56 122 564262
Tuesday, May 24, 2022
85 6-408

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:s/o Frank Sinatra Drive
Road Name:Island Drive
Scenario:E
1,000

10.00%

30.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:100 vehicles
Centerline Dist. to Barrier:

30.0Centerline Dist. to Observer:

Near/Far Lane Distance:12 feet
REMEL Traffic Flow Distance
-9.40
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

3.26 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

70.80 -26.64 3.33 -1.20 0.000 0.000

77.97 -30.59 3.32 -1.20 0.000 0.000
-4.49
-4.86
-5.77
Medium Trucks:

Heavy Trucks:

Autos:

58.73 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

29.816

29.518

29.547
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

51.4 49.5 47.7 41.7 50.950.3

46.3 49.5

44.8 38.4 36.9 45.645.3

48.1 39.0 40.3 48.848.7
Vehicle Noise:54.3 52.6 48.7 44.8 53.753.3
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
2 5 2311
2 5 2511
Tuesday, May 24, 2022
86 6-409

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:w/o Island Drive
Road Name:Frank Sinatra Drive
Scenario:E+P
13,950

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,395 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance
-0.51
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -17.74 0.33 -1.20 0.000 0.000

84.25 -21.70 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

67.1 65.2 63.4 57.3 66.666.0

60.8 61.7

59.3 53.0 51.4 60.159.9

60.3 51.2 52.5 61.060.8
Vehicle Noise:68.9 67.2 64.0 59.3 68.367.9
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
40 85 397184
43 92 425197
Tuesday, May 24, 2022
87 6-410

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:e/o Island Drive
Road Name:Frank Sinatra Drive
Scenario:E+P
14,050

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,405 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance
-0.47
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -17.71 0.33 -1.20 0.000 0.000

84.25 -21.67 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

67.1 65.2 63.4 57.4 66.666.0

60.9 61.7

59.4 53.0 51.4 60.159.9

60.3 51.2 52.5 61.060.9
Vehicle Noise:68.9 67.2 64.0 59.4 68.467.9
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
40 86 398185
43 92 427198
Tuesday, May 24, 2022
88 6-411

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:e/o Bob Hope Drive
Road Name:Frank Sinatra Drive
Scenario:E+P
13,300

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,330 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance
-0.71
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -17.95 0.33 -1.20 0.000 0.000

84.25 -21.91 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

66.8 64.9 63.2 57.1 66.465.8

60.6 61.5

59.1 52.8 51.2 59.959.7

60.0 51.0 52.3 60.760.6
Vehicle Noise:68.7 66.9 63.8 59.1 68.167.7
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
38 83 384178
41 89 412191
Tuesday, May 24, 2022
89 6-412

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:n/o Frank Sinatra Drive
Road Name:Bob Hope Drive
Scenario:E+P
18,900

10.00%

60.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,890 vehicles
Centerline Dist. to Barrier:

60.0Centerline Dist. to Observer:

Near/Far Lane Distance:86 feet
REMEL Traffic Flow Distance

0.81 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

1.01 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -16.42 1.04 -1.20 0.000 0.000

84.25 -20.38 1.04 -1.20 0.000 0.000
-4.69
-4.88
-5.34
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

42.143

41.932

41.953
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

69.1 67.2 65.4 59.4 68.668.0

62.9 63.7

61.4 55.0 53.5 62.161.9

62.3 53.3 54.5 63.062.9
Vehicle Noise:70.9 69.2 66.0 61.4 70.469.9
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
59 127 591274
63 137 634294
Tuesday, May 24, 2022
90 6-413

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:s/o Frank Sinatra Drive
Road Name:Bob Hope Drive
Scenario:E+P
21,320

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:2,132 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance

1.34 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -15.90 0.33 -1.20 0.000 0.000

84.25 -19.86 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

68.9 67.0 65.2 59.2 68.467.8

62.7 63.5

61.2 54.8 53.3 62.061.7

62.1 53.1 54.3 62.862.7
Vehicle Noise:70.7 69.0 65.8 61.2 70.269.7
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
53 113 526244
56 122 564262
Tuesday, May 24, 2022
91 6-414

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:s/o Frank Sinatra Drive
Road Name:Island Drive
Scenario:E+P
1,100

10.00%

30.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:110 vehicles
Centerline Dist. to Barrier:

30.0Centerline Dist. to Observer:

Near/Far Lane Distance:12 feet
REMEL Traffic Flow Distance
-8.98
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

3.26 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

70.80 -26.22 3.33 -1.20 0.000 0.000

77.97 -30.18 3.32 -1.20 0.000 0.000
-4.49
-4.86
-5.77
Medium Trucks:

Heavy Trucks:

Autos:

58.73 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

29.816

29.518

29.547
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

51.8 49.9 48.1 42.1 51.350.7

46.7 49.9

45.2 38.8 37.3 46.045.7

48.5 39.5 40.7 49.249.1
Vehicle Noise:54.7 53.1 49.1 45.2 54.153.7
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
2 5 2511
3 6 2612
Tuesday, May 24, 2022
92 6-415

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:w/o Island Drive
Road Name:Frank Sinatra Drive
Scenario:EA
14,250

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,425 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance
-0.41
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -17.65 0.33 -1.20 0.000 0.000

84.25 -21.61 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

67.1 65.2 63.5 57.4 66.766.0

60.9 61.8

59.4 53.1 51.5 60.260.0

60.3 51.3 52.6 61.060.9
Vehicle Noise:69.0 67.2 64.1 59.4 68.468.0
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
40 87 402187
43 93 431200
Tuesday, May 24, 2022
93 6-416

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:e/o Island Drive
Road Name:Frank Sinatra Drive
Scenario:EA
13,850

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,385 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance
-0.54
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -17.77 0.33 -1.20 0.000 0.000

84.25 -21.73 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

67.0 65.1 63.4 57.3 66.565.9

60.8 61.6

59.3 52.9 51.4 60.159.8

60.2 51.2 52.4 60.960.8
Vehicle Noise:68.9 67.1 64.0 59.3 68.367.8
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
39 85 395183
42 91 423197
Tuesday, May 24, 2022
94 6-417

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:e/o Bob Hope Drive
Road Name:Frank Sinatra Drive
Scenario:EA
13,600

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,360 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance
-0.62
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -17.85 0.33 -1.20 0.000 0.000

84.25 -21.81 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

66.9 65.0 63.3 57.2 66.565.8

60.7 61.6

59.2 52.9 51.3 60.059.8

60.1 51.1 52.4 60.860.7
Vehicle Noise:68.8 67.0 63.9 59.2 68.267.8
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
39 84 390181
42 90 418194
Tuesday, May 24, 2022
95 6-418

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:n/o Frank Sinatra Drive
Road Name:Bob Hope Drive
Scenario:EA
19,400

10.00%

60.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,940 vehicles
Centerline Dist. to Barrier:

60.0Centerline Dist. to Observer:

Near/Far Lane Distance:86 feet
REMEL Traffic Flow Distance

0.93 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

1.01 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -16.31 1.04 -1.20 0.000 0.000

84.25 -20.27 1.04 -1.20 0.000 0.000
-4.69
-4.88
-5.34
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

42.143

41.932

41.953
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

69.2 67.3 65.5 59.5 68.768.1

63.0 63.8

61.5 55.1 53.6 62.362.0

62.4 53.4 54.6 63.163.0
Vehicle Noise:71.0 69.3 66.1 61.5 70.570.0
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
60 130 601279
65 139 645299
Tuesday, May 24, 2022
96 6-419

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:s/o Frank Sinatra Drive
Road Name:Bob Hope Drive
Scenario:EA
22,380

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:2,238 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance

1.55 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -15.69 0.33 -1.20 0.000 0.000

84.25 -19.65 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

69.1 67.2 65.4 59.4 68.668.0

62.9 63.7

61.4 55.0 53.5 62.261.9

62.3 53.3 54.5 63.062.9
Vehicle Noise:71.0 69.2 66.1 61.4 70.469.9
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
54 117 544252
58 126 583271
Tuesday, May 24, 2022
97 6-420

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:s/o Frank Sinatra Drive
Road Name:Island Drive
Scenario:EA
1,900

10.00%

30.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:190 vehicles
Centerline Dist. to Barrier:

30.0Centerline Dist. to Observer:

Near/Far Lane Distance:12 feet
REMEL Traffic Flow Distance
-6.61
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

3.26 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

70.80 -23.85 3.33 -1.20 0.000 0.000

77.97 -27.80 3.32 -1.20 0.000 0.000
-4.49
-4.86
-5.77
Medium Trucks:

Heavy Trucks:

Autos:

58.73 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

29.816

29.518

29.547
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

54.2 52.3 50.5 44.5 53.753.1

49.1 52.3

47.6 41.2 39.7 48.448.1

50.9 41.8 43.1 51.651.4
Vehicle Noise:57.1 55.4 51.5 47.6 56.556.1
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
4 8 3617
4 8 3818
Tuesday, May 24, 2022
98 6-421

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:w/o Island Drive
Road Name:Frank Sinatra Drive
Scenario:EAP
14,500

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,450 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance
-0.34
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -17.58 0.33 -1.20 0.000 0.000

84.25 -21.53 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

67.2 65.3 63.6 57.5 66.766.1

61.0 61.8

59.5 53.1 51.6 60.360.0

60.4 51.4 52.6 61.161.0
Vehicle Noise:69.1 67.3 64.2 59.5 68.568.0
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
41 88 407189
44 94 437203
Tuesday, May 24, 2022
99 6-422

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:e/o Island Drive
Road Name:Frank Sinatra Drive
Scenario:EAP
14,600

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,460 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance
-0.31
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -17.55 0.33 -1.20 0.000 0.000

84.25 -21.50 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

67.3 65.4 63.6 57.5 66.866.2

61.0 61.9

59.5 53.2 51.6 60.360.1

60.5 51.4 52.7 61.161.0
Vehicle Noise:69.1 67.4 64.2 59.5 68.568.1
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
41 88 409190
44 94 439204
Tuesday, May 24, 2022
100 6-423

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:e/o Bob Hope Drive
Road Name:Frank Sinatra Drive
Scenario:EAP
13,800

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,380 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance
-0.55
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -17.79 0.33 -1.20 0.000 0.000

84.25 -21.75 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

67.0 65.1 63.3 57.3 66.565.9

60.8 61.6

59.3 52.9 51.4 60.159.8

60.2 51.2 52.4 60.960.8
Vehicle Noise:68.9 67.1 64.0 59.3 68.367.8
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
39 85 394183
42 91 422196
Tuesday, May 24, 2022
101 6-424

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:n/o Frank Sinatra Drive
Road Name:Bob Hope Drive
Scenario:EAP
19,700

10.00%

60.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,970 vehicles
Centerline Dist. to Barrier:

60.0Centerline Dist. to Observer:

Near/Far Lane Distance:86 feet
REMEL Traffic Flow Distance

0.99 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

1.01 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -16.24 1.04 -1.20 0.000 0.000

84.25 -20.20 1.04 -1.20 0.000 0.000
-4.69
-4.88
-5.34
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

42.143

41.932

41.953
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

69.3 67.4 65.6 59.5 68.868.2

63.0 63.9

61.5 55.2 53.6 62.362.1

62.5 53.4 54.7 63.263.0
Vehicle Noise:71.1 69.4 66.2 61.5 70.570.1
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
61 131 608282
65 140 652302
Tuesday, May 24, 2022
102 6-425

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:s/o Frank Sinatra Drive
Road Name:Bob Hope Drive
Scenario:EAP
22,400

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:2,240 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance

1.55 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -15.69 0.33 -1.20 0.000 0.000

84.25 -19.64 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

69.1 67.2 65.4 59.4 68.668.0

62.9 63.7

61.4 55.0 53.5 62.261.9

62.3 53.3 54.5 63.062.9
Vehicle Noise:71.0 69.2 66.1 61.4 70.469.9
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
54 117 544252
58 126 583271
Tuesday, May 24, 2022
103 6-426

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:s/o Frank Sinatra Drive
Road Name:Island Drive
Scenario:EAP
2,000

10.00%

30.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:200 vehicles
Centerline Dist. to Barrier:

30.0Centerline Dist. to Observer:

Near/Far Lane Distance:12 feet
REMEL Traffic Flow Distance
-6.39
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

3.26 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

70.80 -23.63 3.33 -1.20 0.000 0.000

77.97 -27.58 3.32 -1.20 0.000 0.000
-4.49
-4.86
-5.77
Medium Trucks:

Heavy Trucks:

Autos:

58.73 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

29.816

29.518

29.547
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

54.4 52.5 50.7 44.7 53.953.3

49.3 52.5

47.8 41.4 39.9 48.648.3

51.1 42.1 43.3 51.851.7
Vehicle Noise:57.3 55.6 51.7 47.8 56.756.3
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
4 8 3717
4 8 3918
Tuesday, May 24, 2022
104 6-427

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:w/o Island Drive
Road Name:Frank Sinatra Drive
Scenario:EAC
17,550

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,755 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance

0.49 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -16.75 0.33 -1.20 0.000 0.000

84.25 -20.70 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

68.1 66.2 64.4 58.3 67.667.0

61.8 62.7

60.3 54.0 52.4 61.160.9

61.3 52.2 53.5 61.961.8
Vehicle Noise:69.9 68.2 65.0 60.3 69.368.9
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
46 100 462215
50 107 496230
Tuesday, May 24, 2022
105 6-428

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:e/o Island Drive
Road Name:Frank Sinatra Drive
Scenario:EAC
17,050

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,705 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance

0.37 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -16.87 0.33 -1.20 0.000 0.000

84.25 -20.83 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

67.9 66.0 64.3 58.2 67.466.8

61.7 62.5

60.2 53.8 52.3 61.060.7

61.1 52.1 53.3 61.861.7
Vehicle Noise:69.8 68.0 64.9 60.2 69.268.7
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
45 98 453210
49 105 486226
Tuesday, May 24, 2022
106 6-429

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:e/o Bob Hope Drive
Road Name:Frank Sinatra Drive
Scenario:EAC
16,000

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,600 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance

0.09 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -17.15 0.33 -1.20 0.000 0.000

84.25 -21.10 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

67.7 65.8 64.0 57.9 67.266.6

61.4 62.3

59.9 53.6 52.0 60.760.5

60.9 51.8 53.1 61.561.4
Vehicle Noise:69.5 67.8 64.6 59.9 68.968.5
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
43 94 435202
47 100 466216
Tuesday, May 24, 2022
107 6-430

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:n/o Frank Sinatra Drive
Road Name:Bob Hope Drive
Scenario:EAC
22,900

10.00%

60.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:2,290 vehicles
Centerline Dist. to Barrier:

60.0Centerline Dist. to Observer:

Near/Far Lane Distance:86 feet
REMEL Traffic Flow Distance

1.65 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

1.01 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -15.59 1.04 -1.20 0.000 0.000

84.25 -19.55 1.04 -1.20 0.000 0.000
-4.69
-4.88
-5.34
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

42.143

41.932

41.953
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

69.9 68.0 66.3 60.2 69.468.8

63.7 64.5

62.2 55.8 54.3 63.062.7

63.1 54.1 55.3 63.863.7
Vehicle Noise:71.8 70.0 66.9 62.2 71.270.7
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
67 145 672312
72 155 720334
Tuesday, May 24, 2022
108 6-431

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:s/o Frank Sinatra Drive
Road Name:Bob Hope Drive
Scenario:EAC
25,980

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:2,598 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance

2.20 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -15.04 0.33 -1.20 0.000 0.000

84.25 -19.00 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

69.8 67.9 66.1 60.0 69.368.7

63.5 64.4

62.0 55.7 54.1 62.862.6

63.0 53.9 55.2 63.763.5
Vehicle Noise:71.6 69.9 66.7 62.0 71.070.6
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
60 129 600279
64 139 644299
Tuesday, May 24, 2022
109 6-432

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:s/o Frank Sinatra Drive
Road Name:Island Drive
Scenario:EAC
1,900

10.00%

30.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:190 vehicles
Centerline Dist. to Barrier:

30.0Centerline Dist. to Observer:

Near/Far Lane Distance:12 feet
REMEL Traffic Flow Distance
-6.61
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

3.26 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

70.80 -23.85 3.33 -1.20 0.000 0.000

77.97 -27.80 3.32 -1.20 0.000 0.000
-4.49
-4.86
-5.77
Medium Trucks:

Heavy Trucks:

Autos:

58.73 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

29.816

29.518

29.547
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

54.2 52.3 50.5 44.5 53.753.1

49.1 52.3

47.6 41.2 39.7 48.448.1

50.9 41.8 43.1 51.651.4
Vehicle Noise:57.1 55.4 51.5 47.6 56.556.1
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
4 8 3617
4 8 3818
Tuesday, May 24, 2022
110 6-433

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:w/o Island Drive
Road Name:Frank Sinatra Drive
Scenario:EAPC
17,800

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,780 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance

0.55 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -16.69 0.33 -1.20 0.000 0.000

84.25 -20.64 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

68.1 66.2 64.4 58.4 67.667.0

61.9 62.7

60.4 54.0 52.5 61.260.9

61.3 52.3 53.5 62.061.9
Vehicle Noise:70.0 68.2 65.1 60.4 69.468.9
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
47 101 467217
50 108 500232
Tuesday, May 24, 2022
111 6-434

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:e/o Island Drive
Road Name:Frank Sinatra Drive
Scenario:EAPC
17,800

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,780 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance

0.55 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -16.69 0.33 -1.20 0.000 0.000

84.25 -20.64 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

68.1 66.2 64.4 58.4 67.667.0

61.9 62.7

60.4 54.0 52.5 61.260.9

61.3 52.3 53.5 62.061.9
Vehicle Noise:70.0 68.2 65.1 60.4 69.468.9
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
47 101 467217
50 108 500232
Tuesday, May 24, 2022
112 6-435

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:e/o Bob Hope Drive
Road Name:Frank Sinatra Drive
Scenario:EAPC
16,200

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:1,620 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance

0.14 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -17.09 0.33 -1.20 0.000 0.000

84.25 -21.05 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

67.7 65.8 64.0 58.0 67.266.6

61.5 62.3

60.0 53.6 52.1 60.860.5

60.9 51.9 53.1 61.661.5
Vehicle Noise:69.5 67.8 64.7 60.0 69.068.5
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
44 94 438203
47 101 470218
Tuesday, May 24, 2022
113 6-436

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:n/o Frank Sinatra Drive
Road Name:Bob Hope Drive
Scenario:EAPC
23,200

10.00%

60.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:2,320 vehicles
Centerline Dist. to Barrier:

60.0Centerline Dist. to Observer:

Near/Far Lane Distance:86 feet
REMEL Traffic Flow Distance

1.70 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

1.01 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -15.53 1.04 -1.20 0.000 0.000

84.25 -19.49 1.04 -1.20 0.000 0.000
-4.69
-4.88
-5.34
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

42.143

41.932

41.953
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

70.0 68.1 66.3 60.3 69.568.9

63.8 64.6

62.2 55.9 54.3 63.062.8

63.2 54.1 55.4 63.963.7
Vehicle Noise:71.8 70.1 66.9 62.2 71.270.8
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
68 146 678314
73 157 727337
Tuesday, May 24, 2022
114 6-437

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:s/o Frank Sinatra Drive
Road Name:Bob Hope Drive
Scenario:EAPC
26,000

10.00%

55.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:2,600 vehicles
Centerline Dist. to Barrier:

55.0Centerline Dist. to Observer:

Near/Far Lane Distance:58 feet
REMEL Traffic Flow Distance

2.20 VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

0.30 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

79.45 -15.04 0.33 -1.20 0.000 0.000

84.25 -19.00 0.32 -1.20 0.000 0.000
-4.67
-4.87
-5.38
Medium Trucks:

Heavy Trucks:

Autos:

68.46 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

47.000

46.811

46.830
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

69.8 67.9 66.1 60.0 69.368.7

63.5 64.4

62.0 55.7 54.1 62.862.6

63.0 53.9 55.2 63.763.5
Vehicle Noise:71.6 69.9 66.7 62.0 71.070.6
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
60 129 601279
64 139 644299
Tuesday, May 24, 2022
115 6-438

FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL

SITE SPECIFIC INPUT DATA
Project Name:Desert Islansds Hotel
Job Number:14747
Road Segment:s/o Frank Sinatra Drive
Road Name:Island Drive
Scenario:EAPC
2,000

10.00%

30.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt):

Peak Hour Percentage:

Peak Hour Volume:200 vehicles
Centerline Dist. to Barrier:

30.0Centerline Dist. to Observer:

Near/Far Lane Distance:12 feet
REMEL Traffic Flow Distance
-6.39
VehicleType Day Evening Night Daily
Medium Trucks:

Heavy Trucks:

Autos:77.5%12.9%9.6%97.42%

84.8%4.9%10.3%1.84%

86.5%2.7%10.8%0.74%

3.26 Finite Road
-1.20
Left View:-90.0
Right View:90.0
degrees
degrees
Barrier Atten
FHWA Noise Model Calculations

0.0Barrier Distance to Observer:feet
Barrier Type (0-Wall, 1-Berm):0.0

0.000 0.000
Fresnel Berm Atten
Medium Trucks:

Heavy Trucks:

Autos:

VehicleType

70.80 -23.63 3.33 -1.20 0.000 0.000

77.97 -27.58 3.32 -1.20 0.000 0.000
-4.49
-4.86
-5.77
Medium Trucks:

Heavy Trucks:

Autos:

58.73 Noise Source Elevations (in feet)
Medium Trucks:

Heavy Trucks:

Autos:0.000

2.297

8.006

29.816

29.518

29.547
Grade Adjustment:0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks:

Heavy Trucks:

Autos:

VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night CNELLdn

54.4 52.5 50.7 44.7 53.953.3

49.3 52.5

47.8 41.4 39.9 48.648.3

51.1 42.1 43.3 51.851.7
Vehicle Noise:57.3 55.6 51.7 47.8 56.756.3
Centerline Distance to Noise Contour (in feet)
CNEL:

Ldn:
70 dBA 65 dBA 55 dBA60 dBA
4 8 3717
4 8 3918
Tuesday, May 24, 2022
116 6-439

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APPENDIX 9.1:

CADNAA OPERATIONAL NOISE MODEL INPUTS

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14747 - Desert Island Hotel - Operation
CadnaA Noise Prediction Model: 14747-03_Operation.cna
Date: 25.05.22
Analyst: B. Maddux
Calculation Configuration
Configuration
Parameter Value
General
Max. Error (dB)0.00
Max. Search Radius (#(Unit,LEN))2000.01
Min. Dist Src to Rcvr 0.00
Partition
Raster Factor 0.50
Max. Length of Section (#(Unit,LEN))999.99
Min. Length of Section (#(Unit,LEN))1.01
Min. Length of Section (%)0.00
Proj. Line Sources On
Proj. Area Sources On
Ref. Time
Reference Time Day (min)960.00
Reference Time Night (min)480.00
Daytime Penalty (dB)0.00
Recr. Time Penalty (dB)5.00
Night-time Penalty (dB)10.00
DTM
Standard Height (m)0.00
Model of Terrain Triangulation
Reflection
max. Order of Reflection 2
Search Radius Src 100.00
Search Radius Rcvr 100.00
Max. Distance Source - Rcvr 1000.00 1000.00
Min. Distance Rvcr - Reflector 1.00 1.00
Min. Distance Source - Reflector 0.10
Industrial (ISO 9613)
Lateral Diffraction some Obj
Obst. within Area Src do not shield On
Screening Incl. Ground Att. over Barrier
Dz with limit (20/25)
Barrier Coefficients C1,2,3 3.0 20.0 0.0
Temperature (#(Unit,TEMP))10
rel. Humidity (%)70
Ground Absorption G 0.50
Wind Speed for Dir. (#(Unit,SPEED))3.0
Roads (TNM)
Railways (FTA/FRA)
Aircraft (???)
Strictly acc. to AzB
Receiver Noise Levels
Name M.ID Level Lr Limit. Value Land Use Height Coordinates Day Evening Night CNEL Day Evening Night CNEL Type Auto Noise Type X Y Z (dBA)(dBA)(dBA)(dBA)(dBA)(dBA)(dBA)(dBA)(ft)(ft)(ft)(ft) R1 R1 43.3 43.3 34.6 44.8 80.0 0.0 0.0 0.0 5.00 a 6512536.02 2223944.43 5.00 R2 R2 37.0 37.0 27.6 38.2 80.0 0.0 0.0 0.0 5.00 a 6512512.98 2222941.00 5.00 R3 R3 36.8 36.8 26.0 37.6 80.0 0.0 0.0 0.0 5.00 a 6511990.78 2222760.18 5.00 R4 R4 39.4 39.4 28.8 40.3 80.0 0.0 0.0 0.0 5.00 a 6510916.51 2224659.94 5.00 R5 R5 40.9 40.9 30.3 41.8 80.0 0.0 0.0 0.0 5.00 a 6510959.06 2223991.34 5.00 R6 R6 40.6 40.6 30.6 41.7 80.0 0.0 0.0 0.0 5.00 a 6510913.61 2224164.76 5.00 Point Source(s)
Name M.ID Result. PWL Lw / Li Operating Time Height Coordinates Day Evening Night Type Value norm.Day Special Night X Y Z (dBA)(dBA)(dBA)dB(A)(min)(min)(min)(ft)(ft)(ft)(ft)
POINTSOURCE GAC01 75.0 75.0 75.0 Lw 75 4.00 a 6511551.20 2224346.39 4.00 POINTSOURCE GAC02 75.0 75.0 75.0 Lw 75 4.00 a 6511482.19 2224344.65 4.00 POINTSOURCE GAC03 75.0 75.0 75.0 Lw 75 4.00 a 6511401.46 2224345.96 4.00 POINTSOURCE GAC04 75.0 75.0 75.0 Lw 75 4.00 a 6511333.75 2224345.09 4.00 POINTSOURCE GAC05 75.0 75.0 75.0 Lw 75 4.00 a 6511228.72 2224344.65 4.00 POINTSOURCE GAC06 75.0 75.0 75.0 Lw 75 720.00 180.00 540.00 4.00 a 6511159.71 2224343.79 4.00 POINTSOURCE GAC07 75.0 75.0 75.0 Lw 75 720.00 180.00 540.00 4.00 a 6511184.44 2224120.70 4.00 POINTSOURCE GAC08 75.0 75.0 75.0 Lw 75 720.00 180.00 540.00 4.00 a 6511252.59 2224120.26 4.00 POINTSOURCE GAC09 75.0 75.0 75.0 Lw 75 720.00 180.00 540.00 4.00 a 6511333.32 2224120.26 4.00 POINTSOURCE GAC10 75.0 75.0 75.0 Lw 75 720.00 180.00 540.00 4.00 a 6511402.76 2224121.13 4.00 POINTSOURCE GAC11 75.0 75.0 75.0 Lw 75 720.00 180.00 540.00 4.00 a 6511482.62 2224119.39 4.00 POINTSOURCE PTAC01 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511664.91 2224273.47 4.00 Urban Crossroads, Inc.119 6-442

Name M.ID Result. PWL Lw / Li Operating Time Height Coordinates Day Evening Night Type Value norm.Day Special Night X Y Z (dBA)(dBA)(dBA)dB(A)(min)(min)(min)(ft)(ft)(ft)(ft)
POINTSOURCE PTAC02 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511727.85 2224272.17 4.00 POINTSOURCE PTAC03 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511779.06 2224272.17 4.00 POINTSOURCE PTAC04 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511825.94 2224271.30 4.00 POINTSOURCE PTAC05 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511664.05 2224422.78 4.00 POINTSOURCE PTAC06 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511726.98 2224423.21 4.00 POINTSOURCE PTAC07 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511778.63 2224423.65 4.00 POINTSOURCE PTAC08 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511825.50 2224424.08 4.00 POINTSOURCE PTAC09 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511894.95 2224424.08 4.00 POINTSOURCE PTAC10 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511957.88 2224424.08 4.00 POINTSOURCE PTAC11 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6512008.23 2224424.51 4.00 POINTSOURCE PTAC12 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6512055.54 2224424.08 4.00 POINTSOURCE PTAC13 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511879.76 2224267.83 4.00 POINTSOURCE PTAC14 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511901.02 2224266.53 4.00 POINTSOURCE PTAC15 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511921.42 2224267.40 4.00 POINTSOURCE PTAC16 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511942.69 2224266.96 4.00 POINTSOURCE PTAC17 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511963.96 2224266.53 4.00 POINTSOURCE PTAC18 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6511984.79 2224266.96 4.00 POINTSOURCE PTAC19 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6512005.63 2224266.53 4.00 POINTSOURCE PTAC20 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6512026.89 2224266.09 4.00 POINTSOURCE PTAC21 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6512047.73 2224266.53 4.00 POINTSOURCE PTAC22 61.2 61.2 61.2 Lw 61.2 720.00 180.00 540.00 4.00 a 6512069.43 2224266.09 4.00 POINTSOURCE RAC01 88.9 88.9 88.9 Lw 88.9 720.00 180.00 540.00 14.00 a 6513044.22 2224590.57 14.00 POINTSOURCE Trash1 89.0 89.0 89.0 Lw 89 720.00 180.00 90.00 8.00 a 6512908.63 2224596.55 8.00 POINTSOURCE Pool01 89.3 89.3 89.3 Lw 89.3 720.00 180.00 0.00 5.00 a 6511858.46 2224115.31 5.00 POINTSOURCE Pool02 89.3 89.3 89.3 Lw 89.3 720.00 180.00 0.00 5.00 a 6511772.35 2224116.01 5.00 POINTSOURCE Pool03 89.3 89.3 89.3 Lw 89.3 720.00 180.00 0.00 5.00 a 6511780.68 2224077.12 5.00 POINTSOURCE REC01 91.5 91.5 91.5 Lw 91.5 720.00 180.00 0.00 5.00 a 6511655.87 2224159.41 5.00 POINTSOURCE REC02 91.5 91.5 91.5 Lw 91.5 720.00 180.00 0.00 5.00 a 6512033.46 2224160.45 5.00 POINTSOURCE REC03 91.5 91.5 91.5 Lw 91.5 720.00 180.00 0.00 5.00 a 6511747.42 2224228.16 5.00 POINTSOURCE REC04 91.5 91.5 91.5 Lw 91.5 720.00 180.00 0.00 5.00 a 6511826.63 2224224.90 5.00 POINTSOURCE REC05 91.5 91.5 91.5 Lw 91.5 720.00 180.00 0.00 5.00 a 6511750.67 2224177.16 5.00 POINTSOURCE REC06 91.5 91.5 91.5 Lw 91.5 720.00 180.00 0.00 5.00 a 6511828.80 2224176.07 5.00 POINTSOURCE REC07 91.5 91.5 91.5 Lw 91.5 720.00 180.00 0.00 5.00 a 6511896.07 2224172.82 5.00 POINTSOURCE REC08 91.5 91.5 91.5 Lw 91.5 720.00 180.00 0.00 5.00 a 6511959.01 2224194.52 5.00 POINTSOURCE REC09 91.5 91.5 91.5 Lw 91.5 720.00 180.00 0.00 5.00 a 6511903.67 2224234.67 5.00 POINTSOURCE REC10 91.5 91.5 91.5 Lw 91.5 720.00 180.00 0.00 5.00 a 6511991.56 2224232.50 5.00 POINTSOURCE REC11 91.5 91.5 91.5 Lw 91.5 720.00 180.00 0.00 5.00 a 6512052.32 2224222.73 5.00 POINTSOURCE REC18 91.5 91.5 91.5 Lw 91.5 720.00 180.00 0.00 5.00 a 6511615.04 2223863.57 5.00 Area Source(s)
Name M.ID Result. PWL Result. PWL''Lw / Li Operating Time Height Day Evening Night Day Evening Night Type Value norm.Day Special Night (ft) (dBA)(dBA)(dBA)(dBA)(dBA)(dBA)dB(A)(min)(min)(min)
Parking_lot3 Parking3 98.0 98.0 98.0 64.1 64.1 64.1 Lw"64.1 0.a Name Height Coordinates
Begin End x y z Ground
(ft)(ft)(ft)(ft)(ft)(ft)
Parking_lot3 0.00 a 6512831.91 2224540.92 0.00 0.00
6512831.14 2224551.57 0.00 0.00
6512831.55 2224563.48 0.00 0.00
6512830.52 2224673.59 0.00 0.00
6513157.25 2224674.69 0.00 0.00
6513157.25 2224614.96 0.00 0.00
6512882.95 2224614.96 0.00 0.00
6512886.98 2224559.16 0.00 0.00
6512841.28 2224559.41 0.00 0.00
6512841.98 2224521.91 0.00 0.00
6512608.64 2224521.91 0.00 0.00
6512607.95 2224538.57 0.00 0.00
6512711.47 2224539.18 0.00 0.00
Urban Crossroads, Inc.120 6-443

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APPENDIX 10.1:

CADNAA CONSTRUCTION NOISE MODEL INPUTS

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14747 - Desert Island Hotel - Construction
CadnaA Noise Prediction Model: 14747-02_Construction.cna Date: 26.05.22
Analyst: B. Maddux
Calculation Configuration
Configuration
Parameter Value
General
Max. Error (dB)0.00
Max. Search Radius (#(Unit,LEN))2000.01
Min. Dist Src to Rcvr 0.00
Partition
Raster Factor 0.50
Max. Length of Section (#(Unit,LEN))999.99
Min. Length of Section (#(Unit,LEN))1.01
Min. Length of Section (%)0.00
Proj. Line Sources On
Proj. Area Sources On
Ref. Time
Reference Time Day (min)960.00
Reference Time Night (min)480.00
Daytime Penalty (dB)0.00
Recr. Time Penalty (dB)5.00
Night-time Penalty (dB)10.00
DTM
Standard Height (m)0.00
Model of Terrain Triangulation
Reflection
max. Order of Reflection 2
Search Radius Src 100.00
Search Radius Rcvr 100.00
Max. Distance Source - Rcvr 1000.00 1000.00
Min. Distance Rvcr - Reflector 1.00 1.00
Min. Distance Source - Reflector 0.10
Industrial (ISO 9613)
Lateral Diffraction some Obj
Obst. within Area Src do not shield On
Screening Incl. Ground Att. over Barrier
Dz with limit (20/25)
Barrier Coefficients C1,2,3 3.0 20.0 0.0
Temperature (#(Unit,TEMP))10
rel. Humidity (%)70
Ground Absorption G 0.50
Wind Speed for Dir. (#(Unit,SPEED))3.0
Roads (TNM)
Railways (FTA/FRA)
Aircraft (???)
Strictly acc. to AzB
Receiver Noise Levels
Name M.ID Level Lr Limit. Value Land Use Height Coordinates Day Night CNEL Day Night CNEL Type Auto Noise Type X Y Z (dBA)(dBA)(dBA)(dBA)(dBA)(dBA)(ft)(ft)(ft)(ft)
R1 R1 61.8 -39.1 58.8 80.0 0.0 0.0 5.00 a 6512536.02 2223944.43 5.00 R2 R2 55.4 -45.9 52.4 80.0 0.0 0.0 5.00 a 6512512.98 2222941.00 5.00 R3 R3 54.8 -46.9 51.7 80.0 0.0 0.0 5.00 a 6511990.78 2222760.18 5.00 R4 R4 63.0 -39.8 60.0 80.0 0.0 0.0 5.00 a 6510916.51 2224659.94 5.00 R5 R5 61.6 -41.1 58.6 80.0 0.0 0.0 5.00 a 6510959.06 2223991.34 5.00 R6 R6 62.0 -40.7 59.0 80.0 0.0 0.0 5.00 a 6510913.61 2224164.76 5.00 Area Source(s)
Name M.ID Result. PWL Result. PWL''Lw / Li Operating Time Height Day Evening Night Day Evening Night Type Value norm.Day Special Night (ft) (dBA)(dBA)(dBA)(dBA)(dBA)(dBA)dB(A)(min)(min)(min)
CONSTRUCTION_ACTIVITY CA1 118.6 15.6 15.6 72.0 -31.0 -31.0 PWL-Pt 115.6 8 a CONSTRUCTION_ACTIVITY CA2 115.6 15.6 15.6 91.2 -8.8 -8.8 PWL-Pt 115.6 8 a CONSTRUCTION_ACTIVITY CA3 115.6 15.6 15.6 79.5 -20.5 -20.5 PWL-Pt 115.6 8 a Name Height Coordinates
Begin End x y z Ground
(ft)(ft)(ft)(ft)(ft)(ft)
CONSTRUCTION_ACTIVITY 8.00 a 6510992.81 2224693.04 8.00 0.00 6510992.38 2224529.44 8.00 0.00
6510997.90 2224510.48 8.00 0.00
6511017.50 2224495.77 8.00 0.00
6511604.74 2224494.35 8.00 0.00
Urban Crossroads, Inc.123 6-446

Name Height Coordinates
Begin End x y z Ground
(ft)(ft)(ft)(ft)(ft)(ft)
6511607.60 2224510.48 8.00 0.00
6511647.10 2224517.06 8.00 0.00
6511681.89 2224545.32 8.00 0.00
6511748.01 2224568.46 8.00 0.00
6511810.98 2224599.19 8.00 0.00
6511896.01 2224627.47 8.00 0.00
6511915.41 2224629.76 8.00 0.00
6511941.80 2224615.17 8.00 0.00
6512155.69 2224615.87 8.00 0.00
6512156.38 2224563.09 8.00 0.00
6512163.33 2224540.17 8.00 0.00
6512152.22 2224523.51 8.00 0.00
6512119.58 2224495.73 8.00 0.00
6512116.11 2224486.01 8.00 0.00
6512118.89 2224210.44 8.00 0.00
6512087.20 2224153.27 8.00 0.00
6512073.94 2224142.42 8.00 0.00
6512010.59 2224117.68 8.00 0.00
6511993.11 2224118.78 8.00 0.00
6511983.62 2224129.32 8.00 0.00
6511981.83 2224173.32 8.00 0.00
6511960.94 2224176.15 8.00 0.00
6511947.01 2224168.11 8.00 0.00
6511937.81 2224154.92 8.00 0.00
6511916.38 2224103.61 8.00 0.00
6511903.12 2224090.14 8.00 0.00
6511855.88 2224063.85 8.00 0.00
6511825.71 2224059.26 8.00 0.00
6511755.79 2224071.32 8.00 0.00
6511639.01 2224048.52 8.00 0.00
6511604.33 2224054.39 8.00 0.00
6511604.30 2223989.79 8.00 0.00
6511644.53 2223971.77 8.00 0.00
6511677.86 2223930.92 8.00 0.00
6511687.13 2223879.02 8.00 0.00
6511684.06 2223839.22 8.00 0.00
6511548.76 2223837.23 8.00 0.00
6511548.70 2223870.75 8.00 0.00
6511534.75 2223945.97 8.00 0.00
6511539.51 2223969.00 8.00 0.00
6511555.24 2223986.49 8.00 0.00
6511571.74 2223992.99 8.00 0.00
6511571.74 2224063.01 8.00 0.00
6511514.94 2224074.75 8.00 0.00
6511443.85 2224046.35 8.00 0.00
6511142.74 2224046.35 8.00 0.00
6511142.74 2224270.35 8.00 0.00
6511118.74 2224270.35 8.00 0.00
6511118.74 2224470.35 8.00 0.00
6511027.38 2224470.35 8.00 0.00
6511001.74 2224476.21 8.00 0.00
6510985.60 2224487.68 8.00 0.00
6510974.17 2224503.85 8.00 0.00
6510968.38 2224529.50 8.00 0.00
6510968.81 2224693.08 8.00 0.00
CONSTRUCTION_ACTIVITY 8.00 a 6512703.80 2224541.83 8.00 0.00 6512847.85 2224543.49 8.00 0.00
6512847.80 2224521.93 8.00 0.00
6512704.56 2224521.93 8.00 0.00
CONSTRUCTION_ACTIVITY 8.00 a 6512869.83 2224564.93 8.00 0.00 6512869.83 2224644.18 8.00 0.00
6512850.39 2224644.18 8.00 0.00
6512849.69 2224666.40 8.00 0.00
6512819.14 2224666.40 8.00 0.00
6512819.13 2224694.95 8.00 0.00
6513246.86 2224696.03 8.00 0.00
6513246.86 2224640.08 8.00 0.00
6513209.21 2224640.08 8.00 0.00
6513209.21 2224580.49 8.00 0.00
6512890.80 2224580.49 8.00 0.00
6512890.80 2224564.93 8.00 0.00
Urban Crossroads, Inc.124 6-447

DESERT ISLAND HOTEL

APPENDIX

Appendix C
Desert Island VMT Evaluation, Urban Crossroads, Inc.,
May 2022.

6-448

14747-04 VMT.docx

May 16, 2022
Mr. Ryan Stendell
City of Rancho Mirage
69-825 Highway 111
Rancho Mirage, CA 92270

DESERT ISLAND HOTEL VEHICLE MILES TRAVELED (VMT) EVALUATION Mr. Ryan Stendell,
Urban Crossroads, Inc. is pleased to provide the following Vehicle Miles Traveled (VMT) Evaluation for the Desert Island Hotel development (Project) located south of Frank Sinatra Drive and adjacent to Island Drive in the City of Rancho Mirage (See Attachment A).

PROJECT OVERVIEW
It is our understanding that the Project is proposed to repurpose approximately 13.3 acres of the existing golf driving range and a portion of the existing golf course with new facilities to accommodate a 42-key boutique hotel (with tennis, pool, and yoga amenities), 11 private residences, and a golf training facility (See Attachment A).

BACKGROUND
Changes to California Environmental Quality Act (CEQA) Guidelines were adopted in December 2018, which require all lead agencies to adopt VMT as a replacement for automobile delay-based level of service (LOS) as the measure for identifying transportation impacts for land use projects.

This statewide mandate went into effect July 1, 2020. To aid in this transition, the Governor’s Office of Planning and Research (OPR) released a Technical Advisory on Evaluating Transportation Impacts in CEQA (December of 2018) (Technical Advisory) (1). City of Rancho Mirage Resolution 2021-06 aligns the City’s VMT analysis policy (City Guidelines) (2) with SB 743 and the City’s goals as set forth in the General Plan Update (2017). The purpose of the policy is to comply with State laws while maintaining the resort residential character of the community. The City’s VMT policy establishes VMT as the metric to measure transportation impacts in conformance with. This VMT analysis has been developed based on the adopted City Guidelines.

VMT SCREENING
In addition, Exhibit A of Resolution 2021-06 sets forth screening criteria under which Projects are not required to submit detailed VMT analysis. This guidance for determination of non-significant VMT impact is primarily intended to avoid unnecessary analysis and findings that would be 6-449

Mr. Ryan Stendell
City of Rancho Mirage
May 16, 2022

Page 2 of 4 ends

Rancho Mirage City CouncilJuly 20, 2023

Rancho Mirage City Council
July 20, 2023