Rancho Mirage City Council
December 18, 2025

Ritz -Carlton Rancho Mirage MND 11942
November 2024
1965
RTC -136

Responses to Comments
RItrCarlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
CItx ai Mewha ?Ova
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102

Ritz -Carlton Rancho Mirage MND 11942
November 2024
1966
RTC -137

Responses to Comments
RItz.Carlton Rancho Mirage
initial Study/ Mitigated Negative Declaration
July 2024
Table 6-3- Construction Vendor Diesel Demand
Phase
Trips
Yettiele
MTCO
kg/CO2/Gailors
Gallons
Trenching
4?5a

5.ng
1 n-21
940.4.

Building
Constn.uciion

17.020
167.34

14.21 16.390.01
Paving
440

4.30 10.21
421.39
Arahitecttsd
Coating
4020
39,31

10.21 3,849,97
Total

21.641861
Source_ 4peetrA5144,Appenaix,k-1..

Notes: MT = metric tare: CO = carbon dioxide; kg = kilogram, Table 6-+4. Construction Hand "Mick Dtesei Demand
Vehicle
ltiTCox J
kg/CO:I/Gam
_
Trer>~.hirg
692

14.3O

10.21 1,890.:58
Building
Coredrucieon
60 i.6n

10.21 162. I8
Proving
197

5.4 I
1 Cl.2i
529.44
Architeeh_ad
Coating
380

10.43 1 0.21
1,021.25
Talad
3, O94d
Source: r;dphrx7ir. A rcctlx.4-1.

Han MT a rnehic tan: CO:.a Carbon darride, kg ' kilogram.

In summary, ccnstrvatian of the proposed project Is conservatively anticipated to consume 05,532 gallons of I osoine and 99.452 gallons of diesel over the construction period. By comparison, Ccalifornin'f consumption of petroleum is approximately 78,6 million gallons per day. Bored on these assumptions. approximately 44.62 billion gallons of petroleum would be comerne4 in California over the course of the constriction period, Therefore, rnpacts associated during construction would be leas Phan significant Caperotion
EJectrfcrfy
Operation of the proposed project upon bulldaut would requie electricity for multiple p-urposes. including cooling, liflht-inp. appliances: and various equipment. Additionally, the supply, conveyance, treatment, and dintrIbutian of water oriel wastewater would indirectly result In electricity usage. 5ectricity cortsumptinn associated with proposed project operation Is based on CaIEEMod outputs presented In Appendix AA.ppends A N.

CalEEN►od default values for energy consumption for each land use were applied far Me proposed prOgre1 analysis. The proposed project wolves residerlfk I end n,©n-residentlal uses.

The energy use from non-residential land uses is calculated in CoFEEMod based on the CIt ai Renclsc Mine
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
1967
RTC -138

Responses to Comments
Rltz.Careen Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
Callilornia Commercial End -Use Survey database- For parking lots, CaIEEMod Includes calculation of energy we from lighting. ventilation and elevators in parking lots and structures and is bused on the type of parking lot selected by the user, see CalEEMod outputs presented in Appandie eeteoraenda A- for all laird uses and energy calculations, Energy use in buildings tooth natural gas and electricity) is divided by the program Into end use categories subject to Calilorn+a Building Standards Code (Tele 24) requirements lend sees associated with the building envelope such as the HVAC system, water heating system_ and integrated lighting) and those not subject la California Building Standards Code requirements isurh as epp lances, electronics, and miscellaneous "plug•in" uses'.

Tele 24 of the California Code or Regulations serves to enhance and regulate Calllomiees building standards, The most recent amendments to Tele 24, Part 6, referred to as the 2022iitie 24 updated became erfechve on January 1. 2023. Although net recounted tar in the modeling, energy consumption of the proposed project would also be reduced through instatialron at high efficiency fighting- Accordng to these estimations, the proposed project would consume approximately 1,8t-7,176 ktawaft-hours (MIN per year during operation, For comparson, in 2017 the total residential and non-residential electricity demand In Riverside County was 16,2515.705.411 kWh (CEC 2018j, Additionally. the. Ritz Carlton Rancho Mirage is enrolled In the Rancho Mirage Energy Authority [MEAl• The RMEA supplies power to homes and businesses with an opportunity to opt up to 1009; renewable energy Far these reasons, the electricity consumption of the proposed project would not be considered inefficient or wasteful and impacts would be less than s gniedane-
Natural Gas
Project operation would require natural gas for various purposes, including water heating. natural gas appliances and emergency generator routing testing. Natural gas consumption associated wee operation is based on the CalEEMod outputs (see Appendix .4Aoaendis A According to these esttntiations, the proposed project would consume appesAimtrtely 4.273447 kilo -British Thermal Units (kB1u( per year. Far comparison, in 2017 the non-residential natural gas use within Riverside County was 39.e44.317.732 kktu rC€C 2018$- Since the proposed project would comply with applicable Title 24 requirements the proposed project would not be considered Inefficient at wasteful, and impacts would be log than rignl5cant- Petroleum
During operations., the majority al fuel consumption resulting From the proposed project would Involve the use of motor vehicles traveling to and fram the project site icluding hotel guests, retail and restaurant customers. deliveries, and employees. In addition, fuel would be consumed for the maintenance operations al the emergency.

Petroleum fuel consumption associated with motor vehicles traveling to and from the project site Is a !unction or the vehicle miles traveled (Wee as a r9Isult of proposed project epetblior.

The annual VMT attributable to the proposed project is expected to be 4.593,965 {Appendix ,4Appenrdix A- l). Similar to the construction worker and vendor trips. fuel consumption horn operational trips is estimated by converting the total CO, emissions from operation of the proposed project to gallons using the conversion factors for CO, to gallons of gasoline or diesel Based on the annual fleet mu provided in CarEEMod. sleet of the Dee' ranee LIB air Rrnclia ?Ova
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
1968
RTC -139

Responses to Comments
RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
from light•ci ly to medium -duty vehicles and motorcycles are assumed to rein on gasolne. The remaining l I% of vehicles represent medium -heavy duty to heavy-duty vehicles and buses and are assumed to run on diesel.

Calculations for annual mobile source fuel consumption ore provided in Tables 6-5. Annual Mobile Source Comirne Demand, and a-6, Annual Diesel Dernond_ Table 4-5 Annual Mobile Source ansellne Demand
Vehicle MT cos
Operation 1342.f35
Source Appeccily riAopersdlx A-'
Motes: MT= metric ton: CO_ = carbon dioxide; kg = kilogram, kg,IICOAPGaillon
Table d-6. Annual rtir?el Dernand

8.78 Callan!
1552221 l
Operatiars
Vohlaie MI COI
kg/CO2/Gallou
Cvallans
Vehicle

1.68 96
rp._1
EnergerncyGenet lot
3,895.00
--
3,8'50='
Total
20443.67
Source;
Hefei: MT = metric ion: CO. = carbon dorctde; kg = kilogram, 72-2
Cont
Over the lifetime of the proposed project, the luel efficiency of r rt-road'vehicles nt hotel guests, reran and restaurant custame-t , de'iveries. and employees. commuting to the sire Is expected to Increase_ As such, the amounl of petiolate -II consumed as o result of vehicular trips to and from the project rile during operation woukt decrease over fine- There are numerous ieguiarians in place *sal require and encourage Increased fuel efficiency. For example. the California Alr Resources Board jCART] has adopted an approach to passenger vehicles by combining the control of srnog•causlnf7 pollutant Gnd greenhouse gas j;�hlG;l emissions Into a single. coordinated package oI standards. The approach also includes- shorts to support and accelerate the number of plug-in hybrids and zero -emissions vehicles in California {GARB 201;)I.

Additionally. in response to Senate EIS 375. CAB adopted thew goal DI teducing, per-cdpi!d GriG emissizarrs flow' 2005 levels by by 202x, and 18% by 2035 for light=du1y passenger vehicles In the planning area for the Southern Colrfoinla Association dl Governments lSCAGj.

As sjch operation of the proposed project is expected to use decreasing grntaUnts; of AetrOleum over tine due to advances in fuel economy.
in summary. although the proposed project would increase petroleum use during operation as a result of residences, reslauranf customers, venue attendees, deliveries, tan{t employees commuting to the site, the use would be a traction of the state- and County -wide use and, due to efficiency increases, would diminish oval tune. Given These considerations, peirateurn consumption associated with the proposed project would not be considered inefficient or wasteful and would result in o Issa•Ihon•slgnIYcard Impact by Less-than-SSgnirJkarit (Impact Part b of Title 2i of the California Code of Regulations was established in 1978 and serves to enhance and regulate Cafrfarnic's building standards, fart 6 CItx vt Benito ?Ova
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
1969
RTC -140

Responses to Comments
Rltz.Carlten Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
establishes energy efficiency standards tar iesidantic' and non-residential buildings constructed In California to reduce energy demand and consumption-. Part 6 i updated neriociicafy f every yearrJ Ia Incorporate and consider now energy efriciency technologies and methodologies.

Title 24 also includes Part 1 1, the California Green Building Standards Code iCALGreeni.

CALGreen Institutes mandatory minimum environmental performance standards for all fecund - up, new construclecn of commercial, low -the resldenlial, and slate -owned bu4dings, os wet as schools and hospitals_ The 2022 CALGreen standards became effective an January 1, 2023. The proposed project would meet Tele 24 sand CALGreen stenctrrrds to reduce energy demand and Increase energy efficiency.

City of Rancho Mirage Energy Action Prop
the ; _ql3 Energy Action Plan iePlanj provides a roadrmap of actions withie the City's Murec.pal operations, to help reduce energy consumption, to reduce op-erntlon costs and Increase energy awvareness_ The ePlan's goals focuses on three areas retrofit and expansion al municipal facilities, upgrading the municipal fleet and consideration of municipal programs and actions that wit fzelp reduce municl cal and community -wide energy use and HGY emissions_ The proposed project atilt not obstruct the City tram achieving energy efficiency elan goals.

The proposed project would follow applicable energy standards and regulations during construction. In addition. the proposed project would be built and operated in accordance with all existing, applicable regulations al the time of construction. As such, the proposed project would not conflict with existing energy .standards and regulations; therefore. impacts during construction and operation of the proposed project would be km than significant, No mitigation is required.

6.3 AAiiiigratfan Measures
No mitigation measures required
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
1970
RTC -141

Responses to Comments
RItrCarlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
Intentionally left bkyrtk
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
1971
RTC -142

Responses to Comments
A
RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024

7. GEOLOGY AND SOILS
GEOLOGY AND SOILS — Would the
project:
'
Potentially
Significant
Impact J
Less Than
Significant
with
Mitigation
Incorporation
Less Than
Significant
Impact
No
Impact
a) Directly or indirectly cause potential substantial adverse effects, including the risk of loss. injury. or death involving-
i) Rupture of a known earthquake
fault. as delineated on the most
recent Alquist-Priala Earthquake
Fault Zoning Map issued by the
State Geologist for the area or
based on other substantial
evidence of a known fault? Refer
to Division of Mines and
Geology Special Publlication 42.
❑
O
O
I♦
II) Strong seismic ground shaking?
O
O
III
❑
iii) Seismic -related ground failure,
Including Iieuefaetien?
❑
❑
❑
v) L.andslirte-.?
D
❑
0 ❑
b) Result in substantial soil erosion
or the lass of topsail?
❑
❑
El
■
c) Be located or' a geologic unit or
soil that is unstable, or that
would become unstable as a
result of the project, and
potentially result In on- or off -
site landslidelateral spreading,
subsidence, liquefaction ar
collapse?
❑
❑
❑
■
d) Be located on expansive soil, as
defined in Table 18-1-B of the
Uniform Building Cede (1'994),
creating substantial direct or
indirect risks to life 4r property?
❑
❑
❑
a
e) Have soils incapable of
adequately supporting the use of
septic tanks or alternative waste
water disposal systems where
sewers are not available for the
disposal of waste water?
❑
■
■
si
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Rage 111 of 253 in Comment Letter T2
Ritz -Carlton Rancho Mirage MND 11942
November 2024
1972
RTC -143

Responses to Comments
RItz,Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
GEOLOGY AND SOILS — Would the
aroject:

Potentially
Significant
Impact
Less Than
Significant
With
Mitigation
Irncoraoration
Less Than
Significant
Impact
No
Impact
f) (Directly or indirectly destroy a
unique paleontalogkaI resource
of site or unique geologic
feature?

7.1 Setting
ahi€ tecli≥fn k based upon the Geotechnical Report prepared by Earth Systems Southwest The rgeolechnical report is included as Appendix; H to this Vaal Study. Background and methodologies regaiding the geotechnit d analysis ate found ori Appendix R The project rite is situated in an area of rugged foothills and canyons near the base of the Santa Rosa Mountains_ The area's site lopogtuphy es generally dominated by northeast ro southwest trending ridges and canyons. Total relief at the protect site is on the order of approximately 6Ctfeet. The field explo ration conducted +n 20:ss co portions of the Residences at Ritz Carlton project site but does not cover the Sky Mesa Recreational Site.

The site from the 20U5 geotechn cal report is located at the northernedge of the Santa Rosa Mountains, which border the southwest part of the Coachella Valley, The site is located whin the Peninsular Ranges geomorphic province, of the boundary cif the Colorado Deceit geomorphic province. The Peninsular Ranges ore charocteriaed by lauft-eonhclled, elongated northwest -trending valleys and ranges_ These ranges and valleys. e.xtenct !torn the southern end d Bola CoGrornla Io the Los Angeles basin. The rocks underlying this province consist of sane rent sedimentary and metasedirnentary (pal -Holy metamorphosed sedimentary rocks) that mantle o core of granitic rocks that comprise the Southern California Bathollth,
The on -site geology reflects a typical contact metamorphic zone along an igneous/se4iimentary contact_ the metamorphic contact tine contains pegmatllrc marble and various oak-Illico'fes. These rocks were formed by the modification of previously existing sediments by the intense heat associated w ith the Intrusion of lire igneous rocks_ Several bdked zones arta feldspar and quartz rich gneiss mark the contact zone. Minor quartzite and soh -cif were found; however, marble and marbleized 6rnesrone d ominate the area_ In the vicinity of the project silo. the predominant rocks were strongly folded metgsedimenls, Towards the east, the metamorphism grades ssto foliated migmaiites The faults near the site ore pie -Holocene and inactive.

The field exploration indicates that site msaterisals consist generalty of outcropping pre -Cretaceous metosedimentary rocks overlain by an approximatey I • to 5 -loot layer of gravelly sand wth At to siity nand with graver The soil matrix is visually classified to be in the very law expansion (Et <) category.

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Ritz -Carlton Rancho Mirage MND 11942
November 2024
1973
RTC -144

Responses to Comments
RItz.Carlten Rancho Mirage
Initial Study) Mitigated Negative Declaration
July 2024
the depth of .groundwater in the trick -illy of the project It is believed to be greater than 204 feel.

Groundwater levels may fluctuate with precipitation, irrigation. drainage. regional pumping from wells, and site grading. She absence of shallow groundwater levels may not represent an accurate or permanent condition; minor focal'¢ect and seasonal percrsed groundwater conditions may occur wrfhin the adjacent lo well defined drainages on the site, The bedrock that underlies the site is considered to be essentially non -water bearing and does not form a continuous aquifer. However, some groundwater is fiikety to be contained at depth within intermittent joints and fractures of the bedrock. No seeps or springs were observed sat the •:ite during the field reconnaissance

7.2 Dikcussion of Impacts
af{iJ No impact. Accord,n,u la the City's Cie n?salMori SofelyElement, the project site is not located on CIO Aluist•Rriolo Earthquake Fault lonirsg Map. Exhibit 21. Faults in the Rancho Mirage General Plan Area, In 1he City's General Plan Solely €lersnent, Indicates 1ha9 closest faults In the broad project region include Santa Ana Thrust Fault and Deep Canyon fault JCiiy or Poncho Mkage 2317J_ None or these Inuits underlie the protect site )City of Rancho talkage 20O1_ Although the proposed project could experience strong seismic ground shaking. the proposed project Is not susceptible to surface rupture. Theretore, FIG Impacts associated with fault roptuae would occur.
ofitJ
lest -than -Significant Impart. S:Innilar fo other areas IOcoted In seismically active Southern California rergio ns, the City is susceptible to ground shaking during an earthquake, Howevercis addressed in Threshold the project site Is locate located on an active fault zone and the Iiie would riot be affected by ground shaking more than any rather area In the seismicity active region. Conformance with the most recent California Isufcling Code. which includes building design standards Intended to minimize risk to people and stru tures from patentiar seismic ground shaking, would ensure that impacts would be leis than signliconI. ap{irJt lees-than-SFgniffcorrt Impact. According to the Geatechnicdl Report, the potential for liquefaction 10 carom on the project site is very low because the site is underlain by non -water crysaatine bedrock., and the !,it= does not fie wttltin a County or Stogie liquefaction hoscad zone_ Additionalty. the City's General Plan Safety Element's Exhibit 22 shows shit rise project site's liquefaction susceptlb'lily is "none (City of Rancho Mirage ?A17J-Thetefete, Impacts would te less than i carli
Tess-lharnS grailfount le-spack Ac c_ ording to Exhibit 2.1 of the City"s General Plan 5ofefy b -amorist, the project ;lie is 'scaled in an area where "nurnero•us roc!: falls and landslides expected to occur during an earthquake" jCify of Rancho 1„tlrage 2017). In compliance with the City's General Plan. Safety Element, and the CaNfaaaila Building Code 'CRC), prior to the iasuunce of a grading tsermi1 the Applicant shall prepare an updated geotechnical analysis for areas subject 10 rackfall or landslide hdttiidi, With eamplance In ad tel6vant policies, the proposed project would home a feeslhan rkytNticarrf impact.
by less-than-SFgalcarrt irrraaerct. Aec ording to Exhibit 25 in the City 3 General Plan Solely Element, the project site is located in a site with only '`slight wind erosion hazard", The project site is undeveloped and bras been previously graded- Project construclinn wotlict Involve €Ito pretsimation, some additional grading. and trenching, which may temporarily expose soils to increased erosion potential, The propased project would be required 14 cornph+ with the CItyai Rrnchc?Ova
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
1974
RTC -145

Responses to Comments
Rltz,Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
National Pollutant Discharge EJTmination System Construction General Permll, which requires the implementation of a storntwater polkrl on prevention plan The stormwater pollution prevention plan would employ various EMPs intended lo minimize soil erosion during construction, BMRs may include measures such as watering the exposed areas to reduce erosion potential Upon completion of construction, the project site would be fully developed with sfiuotures, parking, and landscaped; areas, which would minimize any Ion g -term erosions potential. Therefore, impacts woad be lass Than signlllcanl.

The proposed project would expand the existing hotel area and because the expansion would mainly be paved or landscaped, the potential for soil erosion and topsoil lass is reduced during operarlion. The structural and paved Improvements would be impervious areas laci,nig any exposed soils. The landscape areas, although parYSo'le's, would contain various trees. shrubs, and groundoover ghat would help stabilize any surface s❑ilt and contain these soils on the project site, Therefore, impacts associated with sold erosion and topsoil loss would be Jess than significant,
el less-(lion-SigniF,cant Impact A5 addaes5ed in Threshold 7f ralfi iJ. the potential for Uquel action is very low. - .:rr ,c the issuance of the grading permit, the apaicont shall verity that the applicpty"se recommendations of the of the City engineer, Pecpmmendotians shall be herd to par [affiance standards Geotechnical Evaluation helve been incorporated into the proposed project design and conztruclipr, documents to the satisfaction within the opplicoble ordinances (Including grading, construction. a-nd landscaping regulations) of the City and rho stand -olds provided in the most recent Calir_rnso @online Code that are intended to reduce risk related to geologic hazards_ therefore with implementation or these recommendations.

Impacts would be less thall signYicand_
di Loss -than • rnmcanf Impsae! Expansive sons are characterized by this potential "shrink/swell" behavior_ Shrinkiswet is the cyclic change in volume (expansion and conhoctIon) that occurs in certain fine-grained clay sediments from the process of wetting and drying, Cloy minerals such as snieclife bentonite, mQntrnsnAivnire, b+eide!1ite, vermicwfie, and +others pre known to expand with changes in moisture content. The higher the percentage at expansive minerals Natant ,in near-ludo-ce.soils. the higher the poleniksl for substantial expansion.

Accorrhng to the Geotechnieal Report, the t`ield exploration indicated that the soli matrix would be classified within the uety law expansion Index_ Therefore. impacts would be less than significant,
aJ No Impact. The proposed project would connect to Ihr existing municipal sewer system and ueauld not re-r}uhe ❑ sepji[ or aliernative wgstetµafr disposal system_ Thorofare. no impacts associated with the abFy of saik to support septic tanks would occur. f) Pip fmpacl, The project sire has been highly disturbed by previous grading activities. There era no unique paleontological resources os sites or unique geologic features on the project site.

Therefore, there would be no impact.

7.3 Mitigation Measures
No millgation measures required_
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
1975
RTC -146

Responses to Comments
RItz.Carltran Rancho Mirage
Initial Study" Mitigated Negative Declaration
July 2024
8, GREENHOUSE GAS EMISSIONS
GREENHOUSE GAS EMISSIONS —
Would the broject
Potentially
Significant
Imoaet
Less Than
5lgnificant
with
Mitigation
Iracor oration
Less Than
Significant
Impact
No Ian pact
a) Generate greenhouse gas
emissions, either directly or
indirectly, that may have a
significant impact on the
environment?
CJ
El
0 U
b) Conflict with an applicable
plan, policy or regulation
adopted for the purpose of
reducing the emissions of
greenhouse gases?
■
■
■
■

8.T Setting
this section is based on Ire Air Quality and Greenhouse Gas Technical Report prepared by Dudek. incorporated its this Initial Study as n x A -I.

Global Inventories
AnIhropagenic GHG emissions worldwide in 2017 Ithe most recent year for which data is available) totaled approximately 50,860 6/INST of CG2eexcluding land use change and forestry iPBL 2r)tbl_ Six countries— China, the United States, the Russian Federation, indict, Japan: and Brazil —and the European community accounted for approximatelyy 65% of the total global emissionsor approximately 33240 MMT CC.e (PfiL 20181.

Notional and Stale Invenlciies
Per the EPA'€ Inventory of U.5. Greenhouse Gas Emissions and ants; 1.440-2021, total U.S. Glil# emissions were •ariaroxrrnatety 6,340.2 MMT CD:e in 2021 IEPA 3323J. She Jargast source of CD_, and of averd !G1 -f emissions, wos fassifuel cOmbustion. which accounted lgr approxrmately 92,2% of CO: emissions In 2021 ;4,639 MMT COAL From 19910 1a 2021, total efrt sons of CO_ decreased by B$.7 MMT CO: Eq- i1 .7 percentJ, of emissions of CH., decreased by 141.2 NWT CO2 Eq. 114.,5 piesceni, and emissions al N:O decreased by 3.0 W4 CO2 Eq. 0.2percenfi.IEPA2b237-
According to Cr &rila GreEr at,e Gea FrroCsdrss I[x 2930-e ui,, Trends of Errnhslons and Other Indicators ICA 2C7 oJ, Collomia emitted 369,2 MMT CO.:e h 2J2 iitckisling emissions resulting tram taut -of -state oleo hoot generation 1CARS 2018i The mutters of G4-rG emissions in California Include transrmrtotitsrs, industrial uses, electric power piroducton tram both in -state and out-ot-state scarcer. corn nercial and residential apes. agriculture, hi -WP substances. and recycling and waste. The Cakfornia GHG emission source categories las defined n CAPB's 2005 Scopina Plan? and their relative contributions in 2020 are presented in Table -1.

Greenhouse uat Ernes'ronssources in California_
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
1976
RTC -147

Responses to Comments
RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
Table 8-1. Greenhouse Gos Emissions Sources in Catitomta Source Category
Annual GHG Einhilens (MMTCCee)
Percent etTe e.

Transportation
' ,6.6G
"••"n'r
Industrial uses
738-i
Xi%
Electricity generation
59,07
I e%
Residential and commercial uses
?,,,...92
l
Agriculture and Forestry
3',`
High OW substances
2115
6%
Recyafria and Waste

7.3{
Teti*
369.2
100%
Seeree App "1 'Append xA-1,
Notes; •C rIG = greenhouse gas; War CO;e = million metric tons of ccibon dioxide eaurv-olent; GWP = piabaf worming potential.

Ernis'ions redact 220 Coliresfriia GHG inv ntory.

Percentage of total has been rounded arrdsclu7 may not sum due to rouridaig.

Includes emissions associated with 1rnpor1ec1 electricity. which account tar 18.4 MMI CG.e. the City developed a GHG emission inventory in March 2013 as port of the aerncha Mirage Sustainability Plan, The inventory provides a detailed analysis of the City's carbon footprint showing the sources and sectors of emissions, In 2010. the City *mitred 277.898 metric 10115. of CC -.4_ The largest portion of the emission. over 43%, carne (worn the electricity used to power the Qty's homes. businessesresorts fountains and streetlights_ The transportation sector made sap approximately 33% of the emissions,

8.2 Discussion or Impacts
of lessetrion•Signiticerrl rrepocl: Climate change rerers to any significant change In measures of climate, such as lernpercluie, precipllalIon, or wind patterns, lasting for an extended period of time )decodes or longer'. The Earth's temperature depends ssn the balance between energy entering and leaving the planet's system, and many factors [natural and human) can cause changes In Eolith's energy balance. The greenhouse effect u the trapping and build-up of heat in the atmosphere near the Earth's surface (the rrursosphereJ, The greenhouse et teal (a o natural process that contributes to regultilina the Earth's temperature, and i1 creates a livable environment on Earth Human activities that emit additional GHGs 10 the atmosphere increase the amount of Infrared radiorroe'hal gets absorbed before escaping info space. thus enhancing the greenhouse effect and causing the €arth's surface temperature to rise. Gtob-el climate change Is a cumulative Impact; a project contributes to this impact through Its incremental coniril ution combined with the cumulative Incratise of all ocher sources of Thus, GHG impacts are recognized exclusively at cumudative Impacts.

A GHG is any gas that absorbs infrared radietIon in the atmosphere; in other words. GHGs trap heat In the atmosphere. As defined in CcaGlornia H•eolth and Safety Code Section 3 5A5(gJ for purposes of administering many of the slate's primary GHG emissions reduction programs. GHGsinclude carbon dioxide ICQ:', methane (CH,J, nitrous oxide Jr CJ, hydrofluoracarbons, perrluarocarbons, sulfur hexafluorlde, and nitrogen lei -fluoride flee also CIS yr Rrnchc ?Ova
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Rage 116 of 253 in Commennt Letter T2
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Rlte.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
CEQA Guidelines Seclion 15354.5).•' The three GHGs evaluated herein are CO.:, Cie,, and N_O because these are the only GHG gases would be emitted during project construction and/or operations.

The intergovernmental Panel an Climate Change developed the global warming potential IG WPJ concept to campaae the ability of eath GhIG to trap heal' in the atmosphere relative to another gas: The reference gas used n CO.: therefore, GWP-weighted emissions are measured in metric tons JMTJ of CO equivalent rcoel• Consistent with CaIEEMad Version 202[5-01,0, this GHG emissions analysis assumed She GWP tar CH, is 25 ji.e,. emissions of 1 MS of CH, are equivalent to emissions of 5 Mi of C3;), and the GYWP for N_ -o is 298, based on the intergovernmental Panel on Climate Change Assessment Report rPPCC 2007j, As discussed In Section 3 of this Initial Study, the proposed project is located within the jurisdictional boundaries or the SCAQMO. In October 20708, the SCAOMI3 proposed recommendad nurneric CEO significance thresholds for GHG emissions for lead agencies to use in assessing GHG impacts of residential and commercial development protects as presented in its Draft Guidance Dvcurrrenf — fnterfm CEQA Greenhouse Gas I.GH ) 5rgnificonce Threshgief (SCACIMI3 2o3Pj_ This document, which builds on the previous guidance prepared by the California Air Pollution Control Officers Associatlan, explored various approaches for es tabtlshIng a significance threshold for GHG emissions, the draft interen CEQA thresholds guidance document ins not adopted or approved by the Gone rnirig Board.

The S-CAQMD formed a GHG CEOA Significance Threshold Washing Group to work with SCAQMD staff on developing GHG CECrt significance thresholds until statewide significance thresholds or guidelines are established. From December 2/345 to September 2010, the SCAQMD hosted working group meetings and revised the draft threshold proposal several times, although it did not officially provide these proposals in a subsequent document, the SCAGMD has continued to consider adoption of significance thresholds for residential and general land use development projectsthe most recent proposal issued by SCAQ.htD, issued In September 2010. Uses the following tiered approach to evaluate potential GHG Impacts from various uses rSCAQMG 2010):
tier 1: Determine if CEQA categorical exemptions are applicable, if not, move to Tier 2.

Tier 2: Consider whether or not the project is consistent with a locerky adopted GHG reduction plan that nos gone through public hearing and CEQA review. that has con approved inventory, Includes monitoring, etc, 'Inert move lo Tier 3
tier 3• Consider whether the project generates GHG ernissiens el excess of screening thresholds for individual land uses, The Id.000 Mr CO_e per -year threshold for industrial uses would be recommended for use by all lead agencies. Under option 1, separate screening thresholds are proposed for residential project 5 Cf MT CO_e per year), commercial projects r 1.400 MT CC:e Ciimate-forcing substances include CHGs and other substances such cs black carbon and parasols. Mu discussaan focuses on She C HGs identified in the Celitomfes Hetet!, and Safety Code Section 38505 applicable to itre project Including CC.. CH4, and 1J C+; 'mooch assaciared lh .other cllmare-larding substances are rot 9VCIAlated therein
LIB ai Rind a ?Ova
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RItz.Carlton Rancho Mirage
tnitlal Study/ Mitigated Negative Declaration
July 2024
per year), and mixed -use proieeIs lama MT COB per year). Under option 2, a single numerical screening threshold [aI 3.01)3 MT COae per year would be used far all non -industrial projects. II the, project generates emissions In excess of the applicable screening threshold, move to Tear 4.

Tier4; Consider whether the project generates GHG emissions In excess of appictabte perlorrrrance stan=dards. for the project service population (population plus entploymentj. The efficiency targets were established based on the pool of AssemblyBoll in) 32 to reduce statewide GHG emissions to 1490 levels by 2020. The 2(720 efficiency targets are 4.8 MT CO.:sr per -service population for proiect-ievel rmoyses and 6.6 MT CO_e per -service population for plan -level analyses, It the project generates erniss ons in excess of the applicable efficiency Forgets. move to Tier 5.

Tier 5t Consider the isriplamonto-lion of CEQA rrritigotlon iircludrng the purchase of GHG c fisetsJ to reduce the project efficiency target lo Tier 4levois.

However. neither SCAQMD or Rancho Mcuge adopted these thresholds and therefor the qucrdltafive atratysis provided herein h provided for informationor purposes only. In the absence of an adopted quantitative thresholds, GHGs are evaluated in the context of policy consistency, Construction Emissions
Consti`ucticn Q; the pro -posed project would result lrr GFIG emissions prim -nifty associated with the use of off -rood construction equipment. on -road trucks. and worker vehicles. A depiction ofe;zgaectedconstruction schedules jinchiding information regarding phasing, eclLipmentused during each phase truck 1rps, dnd worker vehicle trips) assumed for the purposes 'DI' emissions estimation Is provided in Table 3.6 and in ,b_oper d x Ap ,pencux A.1- do -site sources of GHG emissions include off -road eguprrient off -site sources include hucks and work or sehicles. Table 8-2 Estimated Annual Construction GHG Emissions, presents constructiars GHG emissions for the proposed project ham on -site and otf-site emissions sources.

Table 8-Z Estlrrrcted Annual Construction. GHG Emissions Year
CO2 CH4 NO 0030
Me6'fc Tons per Year
2023
5/i.C9

0.13 0.01
579.09
20_z
56236

17.010

0.03 572.69
11171..71
Amortized 30 i�^�AyT, l
Amo tize'd Over 7

38.JF..

Source. Appor-Alt--064.ocreRd a A-1. i�
Notes' GHG = greenhouse gas CC.; = ccrhori dioxide; CHi = methane; N:0 = nitrous oxide: CO:e = °arban okt aide equivalent
ks shown In Table 8-2, Estimated Annual Construction GI - G Emissions, the estimated fotol GHG emissions In .1O23 through 2(`x24 would be approximately 1,152 MT O. it rrlattized over 30 years, construction GHG emissions woald be approximately 38 MT CO_e per year In addition, as with proposed protect.generated construction criteria air pollutant emissions, GI -PG emissions generated duringproposed conshuction activities would be short LIB ai Rrncha ?Ova
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1979
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RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
term, lasting only for the duration of the construction period, and would not represent a long-term source of GHG emissions,
Operational Fmistslans
Operation o the proposed project wovid g=nerate GHG emissions I uDugh motor vehicle trips to and from Ilse project site, landscape mainleriance equipment operation; energy we irratural gas and generation 3f electrIcilyr consumed by the proposed projects: solid waste disposal, and generaation of electricAy associated vvith w[tkee supply; trgatrnent, and dtstrfaullan; wastewater treatment; and natural gas consumed toy the emergency generator_ GHG emissions would also be generated through intermittent maintenance and nesting of the diesel eme gency generator, t+rnited 10 SO hours per year. C EM.tid was vied 1a calculate the annual Gt1G emissions. GHG emission estimates were based on the mobUe source. area source, and energy l'natural gas} operational assumptions described In Section 3(bi, within the air quality analysis. CaloEM4d delaull wallies were used to estimate GHG emdsaians associated with energy (electricity.' consumption, solid waste, and water ar1d wastewater_ the estimated operational I2423.I projer:t-gertercafed GHG emissions from area sources; energy usage, motor vehicles. solid waste generation water usage and wastewater generation, and stationoTY sources are shown n Table 8-3, Eslirnated Annual Operational GHG Emissions, CItx yr Rrncha MMgye
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1980
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Ritz-Caritran Rancho Mirage
r i is Study) Mitigated Negative Declaration
July 20244
Tdbre 8-3. Estimated Annual Opera 'tonal GHG Emissions
Emnlssian Source
COr
CMs N O Me
metric on per year
Proposed Project
Area
180

4.00 0.00

1.85 Energy
55564
{9,03

0..D1
558,68
Mobile
I,5O?.92

0.08 0,07
1,531.81
taliorr y
?2285

0.00 0,00
22,43
Solid waste _

38.80 2.29

4.00 96,13
Wafersuppty Crnd waviewater
66-7.5
0,03
0-02
7263
To'lat
2,284.03
Amorfced Cora lfr ucfion Emissions
38 Opertstlars + /incrtiiped Conetn ellon Told
2322.42
Notes; CO_ = carbon dioxide; CH.. = methane; N>O = nitralla a>ackc CO2 carbon amide equivalent See P ppandt AiskpoiencPs A-1 Ior detailed results.

These emissions retleat operational year 0323.

As shown in Table 8-3, Estimated Annual (VasaNTonni GHG Emissions, and prodded for inlormallonal purposes, the estimated annual net proposed project-generatedGHGemissions would be opproxirnaiely 2,284 MT COze per year as o result of proposed proled opsrolions only- Estimated annual proposed project -generated operational emissions In 2024 X2284 MT CO:e per year) talus ornortted proposed prclect cariztruction emissions {38 MT C4ae per year] would be approximately 2.332 MT CO.e per year. ISecause no quantitative threshold has been adopted, Impacts related to GHG are discussed In The context of policy consistency below. therefore. as discussed below, in relation to the generation of GHGs, the proposed project's Impact would be less.lhan stgnIrkanl- tea mitigation a required. bl less-ttrnn-Significant fmpvctr The City has not adopted a comprehensive climate -action plon. and there is currently no load guidance that would be applicable tc the proposed project The City addresses 0HC-reducing goals 01 the Morph 2101,3, S.isf-aingGtty Plan and Energy Action Plan.

However, while The Sustain' b icy Pion provides G+PG reduction goals. they d0 not sx.tend beyond Year 2Q2D, At this time, no mandatory GHC plops, policies. re .cations, or fineixed agency guldelnes would apply to the proposed project. Nonetheless, the proposed project consistency with the SCAG 2020 R'TP/SCS. CAR9'sScoging Plan, and statewide GHC reduction goals for 3039 or 2045 identified fn idenefred in Sx rate Bill 32 and Assembly Bill 1279. respeoevely Ch of Rancho- Mirage Energy Action Plan
The City's Energy Action Pion 4ePlan'f provides a roadmrap of actions within the Cify`s Municipal ogerafirsnsto help reduce energy consumption, to reduce operation costs and Increase energy awareness, The ePlan's goals Focuses on three areas; retrofit and expansion of municipal facilities, upgrading the municipal fleet and consideration of municipal programs and actions that will help reduce municipal and community -wide ersergy use and GHG emtssions-
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1981
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RItz.Carlton Rancho Mirage
initial Study/ Mitigated Negative Declaration
July 2024
Clay ad Rancho Mirage Susla4nahilily Plan
In March 2013, the City adopted the 2413 Sustainability Action Plan: Leadeuhip in Energy Efficiency jSustainability Plant in order to set GHG reduction goals and measures, The Sustorn©biIlly Plan Is a framework. for the documenting and implementation of poicles and programs that will reduce the City's GHG emissions, workt g towards the Statewide target of 1994 revels by 20247, set by AB 32.

The City addresses GHG-reduc tip pools n the March 201.3. Sustainobiity Phan and Energy Action Plan. However. while the SuslQind:Arty Plan provides GHG reduction goals, they do no extend beyond year 2020. In addition. the prapased project does not prevent the City from promoting sustaatidhility and energy efficiency goals to reduce the City's carbon footprint, Southern Cal1omia As oai*Alcn aC Governments RIP/SCS
SCAG hat developed Connect Sc.Cal, the 2Es24-2445 RIP/SCS, which Is a long-range visioning plan lhat balances future mobility and housing needs with economic. environmental and public health goals_ Connect SoCal charts a path toward a more mobile, sustginabie and prosperous region by making connections between transportation networks, between planning strategies and between the people whose collaboration can improve the quality of life for Southern Californians. Connect SoCal embodies ci collective vision for the region's future and is developed with input from local governments, county Irnrosportatecn coni nitslons. tribal governrnentt, non-profrf organizations businesses and local stakehalders within the counties gl Irrikrereral, Los Angeles,. Orange. Riverside, San Bernardino and Ventures.

On Seplembsr 3, 2020, Connect SoCal was adopted by SCAG's Regional Council. Connect So Col is a long-range ♦ironing pion that builds upon and expands kind use and tronspottation strategies established over several planning cycles to nsrease mobility options and achieve g more sustainable growth pattern. The rnoler goals of the Connect SoCal are ouitned in Table 8-4, Project Consistency with Cite SCAG Connect Sacral MTP/SCS, along 'Mill the proposed projecl'a carsslttency with therm
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November 2024
1982
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Ritz -Carlton Rancho threes
initial Study) Mitigated Negative Declaration
July 2024
Table 8-d
Project Consistency with the SCAG Coesrseeel SoCol RTPISCS RTP/SCS Measure
Proposed Project Pcrbsslial 10 COMIC!
ncoJr age ie.gi Jnal EIc0I-Ior1-c
prosperity and global
competitiveness.

Nor opn'.lable. ail "le proposed prof cl would not
inhibit SC.AG tram encoseagrng regional economic
prosperity and global competitiveness.
trrprove mobility. accessibility.
reliability, and travel safety for people
pnd goods.

Not opplitobte. The proposed project would not
inhibit SCAG from strengthening the regional
transpor1a18on network for goods movement.

Enhance the preservation, security,
and resilience of the regional
transportation system,
Nat applacabre_ The proposed project wool -d nal
inhibit SCAG from enhancing the resilience at the
regional transportation system.

Increase person and goods
mavemerlt and travel choices within
the transportation system,
Nat opplabfe. The proposed project would not
inhibit SCAG from irrcreasin'o person and goods
movement and travel choices within the
trans poil otion system -
Reduce greenhouse grab emissions
and improve air quality.

No conflict, The proposed project would result er
criteria air pollutant and GHG emissionsduring
construction and operation. However. as presented
in Section 3.2, the proposed project would not
exceed the SCAQMD mass daily sicnificance
thresholds during construction or operation_ GHG
emissions would be reduced through compliance
withappliccrble CALGreen standards,
Support healthy and equitable
communities,
No conflict. A desert landscape design is proposed
throughout the project site including water
cascades. multiple pools, rock escarp -merits, and
founlairrs. Landscaping would be located throughout
the project site and between proposed buildings with
pedestrian access provided by the on-i fe pedestrian
netw crrk
Adapt to a changing climate and
support an integrated regional
development pattern and
transportation network.

Not appllicableThe proposed project would not
inhibit SCAG from supporting an integrated redonal
development pattern and transportation network,
Leveraoe new transportation
technclogres and data -driven
sokrricns that result In more efficient
travel.

Not applicabre, The proposed project .would not
inhibit SLAG from leveraging technolag,+ for the
transportcatlon system.

Encourage development of diverse
housing types in areas that are
supported by multiple tronsporiotion
Options-
Not appricablle_ The proposed project does not
include traditional housing. but rather would operate
as time-share properties. and would not irsh lilt SCA.G from encouraging development of diverse housing
fyPes,
Promote canservatiorr of natural and
agricultural lands and restoration of
habitats,
No conflict The protect site is vacant with dirt covering the majority of the site. The proposed project will
provide, approximately 35% open space made up of
taridscape areas, pools, water features, and paths. A
desert landscape design is proposed throughoul the
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November 2024
1983
RTC -154

Responses to Comments
Rltz.Carlton Rancho Mirage
initial Study/ Mitigated Negative Declaration
July 2024
Table 8-4
Project Camistency with the SCAG Connect SoCal ItTPISCE RTP/SCS Maclaine
Proposed Project Potential toConlict
arc:0cl Sit. Includlno vid!Er _arcadesmullipie pools,
rook: escarpments. and fountains. Landscaping would
be la -sated itvoughout the picirsct site and between
proposed buildings with pedestrian access provided
by the on -site pedestrian network. Fhe proposed plant
palette would •comprise of native. drought -tolerant
plantings consistent with the existing hotel
fan -escaping and surrounding areas.

Source: &GAG 2020,
As shown in Table .5-4, the proposed project would be consistent with all rapprcable measures within the SCAG Connect CaI RTP15CS.

California Air Resources Board Scoping Pion and Reduction Goals the CIImo1e Change 5coping Plan, approved by CAPES in 2008 and updated in 2014 M17. and 2022 provides n framework tor actions ro reduce Calilsyrnirrs GHG emissions and requires CARB and other slate agencies to odopi regulations and other Initiatives to reduce GHGr.

The 3]22 Scoping Phan outlines the state's plan to reach carbon neveaRity by 2045 or earlier. while also assessing the prs}gr'ess the siesta t moking toward achieving Gt45 reduction goals by 2O3[ Per the Legi-SJafive Analyst's Office. the 2022 Soaping Plan Identifies o rnore aggressive 2036 GHG goal. A.r it relater to tine 2036 goal, perhaps the most significQM change in the 2D2 plan las compared Io previous 5ccping Ptonsl is that it identities a new 5FIG for®` t of .18 below the I e90 Ievet compared to the current st a tutory goal of below. Current low requires the -Stole to reduce GHG emissions by at least 40%bhelsw the I S0 level by ,?lift but does :not specify an alternative goal. According lo CARE. a focus on the lower target is needed Pc pu1 the stale on path to meeting the newly established 2645 gorXI, GbrItiit til with the b.deroll path to 2045 cartoon neutraTty. The carbon neutratrty goal requires CARB to expand proposed actions tram only the reduction of cnthrapogenic sGucces of GtfG emissions In also include those Mal capture and store carbon to g through natural and working lands, or mechanical technoloaiesl. The cGlh4n reduction proaroms build on and accelerate those currently in place, including moving to zeroemissionTranspoitation: phasng out use of fossil gas use for heating homes crud buildings; reducing chemical and rerrkjirants with high GINP: providing communities with sustainable options for walking. biT.ang, and public transit; displacement of tonsil-tuel tired electrical generation through use of renewable energy allernalhres le.g., solar arrays and wind turbinest: and scaling up new options such PS green hydrogen {CARES 2022ib, The 2022 Soaping Non details "Local Actions" in Appendix D. The Local Actions includes recommenddirons Intended to build room enlurn tar localgovernment acllons that ahem with the Stare's climate goals, with a focus on local GHG reduction shaleg 6S lcammc my referred fa as climate motion planning) and approval of new land use development projects, including through environmental review under C€QA. The recommendations provided in Appendix are LIB ai Rrnchc ?Ova
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RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
non -binding and should not be 'Warp -elect as a directive to local governments, but rather as evidence -based analytical tools to assist local governments with their lore as essential partners In achieving California's climate goals_ Appendix D recognizes consistency with a CEsDA- qualified GHG reduction plan such as a Climate Action Plan as a preferred option for e valuating potential GHG emission Impacts under CEDA, Absent a qualified GHG reduction plan, Appendix D provides recommendations for key atirioutes lhaf residential and ntixed-use projects should achieve that would align with the State's cimate goals incLding EV charging inlrastrucirrre, refill locution, no loss or conversion otrwturnl and working lands. transit -supportive densities or proximity to transit shops. reducing pa'king requiements, provision of affordable housing (2[796 of unit3j, and all -electric appliances witti no natural gels connection (CARE Projects that achieve all key attributes are considered clearly consistent with the Slate's climate and housing goals and would have a lass-thfln-sIgrilticant GHG Impact under CEQA. However, project that do not achieve al attributes are not considered to tease in a potentially significant GHG emission impact IFCARB 20220. A net•zera threshotct and use of air district recommended thresholds of significance were iw.'o other CEO thresholds Appendix D recommends.

The «[1122 Sopping Plan reflects the 2030 target cif a 4Q reduction below 1990 levels codified by s6 32, and lire 2045 forget of carbon netstraldy established by ECG B-55-18 IAB 12791, as detailed in section 4.6-2, Regulatory Pequiremenis, above- Per the 2022 Soaping Plan, empirical evidence shows that residential 9evelapmenf protects hit are consistentwth these project attributes to reduce GHG emissions will accommodate growrlfit in a rn-annex that aligns with the GHG and equity goals of SE32. Air detailed above- .absent n qualified GH'M reduction plan, Appendix D of the CAf16 Scoping Plan provides recommendations for key attributes that residential and mixed -use p?rviects should oc►ieve that would align with the State's cIimcrfe goals. fCAR6 2022b. the proposed project would involve the construction of 106 residential suites hotel villas. event sPlOces, commercial spaces. and an amenity space totaling 236,748 square feet, However, the I06 residential suites are anticipated to be heated as a time -shore home in which residents are 'allowed 10 live al the residence only during a specified time frorne Therefore, the project's operation is more in fine with ra commercial hotel use than a tr.aditiQngl residential project- As such the Scoping Plan Appendix p recommendations for residential and mixed -use projects ore not appropriate for the project
Nevertheless, many of the measures sand programs inoludedl n the Scoping Pion would retutt in the reduction of project -related GHG emissions with no oolton reputed at the projectwevel, Inchrdina GHG emission reductions through ircrecsed energy elilaiency and renewable e nergy production fSB 350i, reduction In carbon inrenslly of 1'ansporlation fuels ILCPSF, and the occeterotea elficien;y and electficatian of the statewide vehicle fleet (Mobile Source StrntegO_
the Project would ptevtde EV charging infrastructure that, meets the California Green Guiding Standards Code. The Project life is surrounded by the existing Ritz Carlton facilities to the north and existing residential single-famirty homes to the south. The site has nearby access through Frank Santa Drive and access to existing utllitles and essential public services, As discussed in the alines and Service Systems section of the Initial Study, the proposed project would connect to existing electric, natural gas. and telecommunication limes and facilities wows and adjacent to the project site. The proposed project does not propose uses that would be expected to LIB '? Rrricha Mine
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Rltz.Carlton Rancho Mirage
Initial Study) Mitigated Negative Declaration
July 2024
generate on excessive need for these facilities such that canilnrctIon or relocation would be required:

OvernII. She Pradoor would comply will 411 iegulatrorl3 adapted In fuilherrunce 01 tike Scoping Plan to the extent applicable and required by law. As demonstrated above, the proposed ProJecl wautd nal canlect with CAF.IS's 20225=ping Plan up doles and with the s.rate'S ability to achieve the GHG reduction and carbon neutrality goals.Furlher, the Project's consistencv with the applicable measures and programs would ossisi in meeting the .City's contribution to GHG emission reduction targets in California, Based on the considerations previously outlined. th-e Project would not conflict with an applicable plan, pokey, or regulation adopted for the purpose of reducing the emissions of GHGs.

The proposed project would not interfere with implementation of GHG reduction goals for 2030 or 2045 because it would nor conflict with the SCAG R P/SCS or with the state's trajectory toward future Gl1G reductions_ Therefore. the proposed project would not conflict with an applicable pfarl, policy, or regulation adapted for the purpose of reducing the emissions of GHGL therefore, Imtsact would be lass titian sipnilcard, &3 Mitigation Measures
t fo rrrirlgation mearofes required
CItx ai Rrncha ?Ova
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1986
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RItrCarlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
inte t e ally lest dank
CItx ai Mewha ?Ova
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1987
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RItz,Carlton Rancho Mirage
Initial Study) Mitigated Negative Declaration
July 2024
9, HAZARDS ANO HAZARDOUS MATERIALS

HAZARDS AND HAZARDOUS
MATERIALS -- Would the pro_'ect:

Potentially
Significant
Imoact
Less Than
Significant
with
Mitigation
Incorporation
Less Than
Significant
In) act
No
Impact
a) Create a significant hazard to the
public or the environment through
the routine transport, use, or
disposal of hazardous materials?
a
b) Create a significant hazard to the
public or the envirormtent through
reasonably foreseeable upset and
accident conditions involving the
release of hazardous materials
into the environment?
i
11 El
n
c) Emit hazardous emissions or
handle hazardous or acutely
hazardous materials, substances.
or waste within area -quarter mile
of an existing or proposed
school?
El
.
ii
d) Re Located on a site which is.
included on a list of hazardous
materials sites compiled pursuant
to Government Code Section
55%2.5 and, as a result, would it
create a signd#cant hazard to the
public or the environment?
[g
0 D
0 e) For a project located within ail
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 result in
a safety hazard or excessive noise
for people residing or war -Icing in
the pro :act area?
❑
Q
a
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Rltz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024

HAZARDS AND HAZARDOUS
MATERIALS-, Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Incorporation
Less Than
Significant
Impact
No
Impact
f'j Impair implementation of or
physically interfere with an
adopted emergency response
plan or emergency evacuation
plan?
❑
'
lit
g) Expose people or structures,
either directly or indirectly. to a
significant risk of lass. injury or
death involving wiI•dfand fires?

4.1 Setting
The analysis in this section of the Initial Study is based on a Phase I Environmental Site Assessment for the project site, included as Appendix I of this Initial Study.

Current operational Aclrvahes
T2-2
Cont
The proposed project is r_unently a variant full service hospitality facility and is undergoing renovation and new construction activities_ No noteworthy tenants occupy the proposed project and no envranmentaty significant operations are candvctetl• oil the proposed project, Considering itse current operations assessed czt the proposed project, no environmental permits, registrations, or notifications appear to be required.

An Inactive dr .cleaning machine h located in the commercial laundry at the project site_ The dry areal -mg rnochlne is identified as anAera-Tech Green Jet Dry-Weltleaning Machine. Model41OWC-45. the dry-clep,ing machine uses IPWk-44 Dni'-Cleaning Solution, a water-basecf, non-toxic solution, instead of perthforoethylene rPCEi. Currently available Inlormafion indicates the use of IJWK-14 Dry-Clednulg Solution is highly unfthely lo impact the proposed project when properly used. DW?C-44 Dry -Cleaning solution does not contain chiorilated hyc ooerbons jsuch as PCE) ono wastes generared in the process would not be classifies as hazadaus, Material Safety Data Sheet (MSC)5j information for DWX-41 confirms thot this substance contains no Ingredients Identified ea kaaardousSubstonces acootding to SAPA hazard Ti -he ill. Section 313 - CF! -355, The existing dry -learning machine G associated with the ongoing renovation, is new equipment which has never been used. and appeared to be empty al the time of EMG's site visit_ Copies of a specification sheet and brochure for the Green jet Qty-Wetcleaning Machine. as well as live trl L5 sheet for f]1NX-44 and a Laundry Pion showing the location of the dry cleaning machine, have been appended as supporting documents (Appendix No information was identified to •confirm whether dry cleaning woe previously conducted on -site between 1488 and the time of closure in 2006. Based on the historical use as a toil-serrice Ritz Carlton. it is somewhat Ilk•ely that a dry cteaning Want, which posstily operated an older PCE machine, was fotmarly lo-cated on -the. 6y Eh chemical nature, PCE has the potential to penetrate through concrete LIB ai Rrncha ?Ova
125

Ritz -Carlton Rancho Mirage MND 11942
November 2024
1989
RTC -160

Responses to Comments
Ritz -Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
and impact subsurface conditions. Howe v- r, any such dry cleaning facility would have operated since the promulgation of RCRA in 1980, the legislation that regulates the hanging and disposal of hazardous materials and wastes, As such. waste handling and disposal practices would have been regulated since the facility's inception, Furthermore, because the laundry is vnderfoin by two levels or parking garage and not the earth- it is unlikely that subsurface conditions would have been Impacted as a result of any historical dry cleaning piont operations in this area.

Hazardous ,btuferkaisfP froteum Praducis Storage Pod tdatra rfttgi .'e.ual observation frll the use anafcr storage of hazardousmarerials and petroleum products was performed. The following hazardous materials and petroleum products were identified:
• Pontine construction and maintenance supplies jl-e adhesives. sealants, paints, etc- were observed of the proposed project in retail -sized containers. • Diesel fuel is stored In an integral betty tank associated with the backup generator. • Cooling system water treatment chemicals are maintained in poly drums located In the central plant and cooling tower areas In ossociation with reutlne operation and upkeep of the cooling equipment,
The identified chemicalsmaterials, and products were observed In their sedled, original containers and in designated storage areas. Materials appeared to be properly stored. No evidence of spills or staining was observed. to addihonthe concrete surfaces appeared intact, and no cracks were observed in the areas ol product storogeJusoge
Waste Generation, Treatment, Storageand Disposal
Visual observation for the generation, treatment, storage. and disposal of wastes war performed. The following wades were identl'fie4;
▪ Municipal trash is stored in the compactor yr rot-orl debris boxes when appropriate) and disposed of by contracled Waite haulers,
• Domestic sewage is disposed of to the municipal Sanitarysewer system.

No evidence of spills or stainhg was observed in the area of waste generation or pre -disposal storage.

In addition, the concrete surfaces appeared intact, and no crocks were observed in the cress ol waste generation or pre -disposal storage, No excessive odors or overflowing/excessive ground trash were noted in rho vicrn.rly of ttse compactor or debris boxes_ hto hazardous, regulated, or medical wastes were noted in the compactor w debris boxes, No wasieweter discharge that would require permitting through local or stare regulator agencies was identified of the proposed project filo current ou former septic systems or drywalls were identified at isle proposed project. 92 Discussion of impacts
a) lees-INae-Sfgnificant Impact. CanstauctIon of the proposed protect would requite the transport of polentirtly hazardous materials neluding but not limited to fuels, rubric ants, and various other liquids needed for operation of construcibn equipment. ProperSMPs and hazardous materials handling protocols would be prepared and Implemented to ensure safe storage, handling, LIB ai Rrncha Mine
126
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Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
1990
RTC -161

Responses to Comments
RItz,Cariton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
transport, use, and disposal of all hazard materials during the construction phase of the proposed project, Construction would oleo adhere to any local standards set fortis by the Cis. as wet as state dad federal health and oftsofeN requirements !haI are intended to minimize hazardous materials nsk to the public, such as the Caifornia Occupational' Safety and stealth reoutemenis. Hazardous Waste Control Act, Caffornia Accidental Release Prevention Program, and the CaIfornla Health and Safety Code, Furthermore. all construction waste, including trash, liter, garbage, solid waste, petroleum products, and any other potenlialy hazardous materials would be removed and transported to permitted poste faciflty tar treatment, storage, or disposal, Use of these materials during construction for their intended purpose would not pOsa o significant risk I'b the public or the envrorirn - I_ Therefore, impacts related to routine transport, use, or disposal of hazardous material's during construction would fie Less Than significant_
The prop-osed project wound involve development of residential land uses, event space, resrouranr, and associated landscaping and facilities. During opnratlon of the proposed project, use of hazardous m<aterlalt would prinlariy iivolve the private use Of cornmerrinlly availdble tle5ning products, Idndtorsping therrilcals and fertilizers, and various other commercially dvalable substances, According to the Xi06 DEIR for the Lodge Expansion Prajec!. the exaslIng hotel slte operates an opproamately 825 square foot dry cleaning faddy on -site. and stores approximately 20 to 3© gallons on •average or dry-cleaning chemicals on - site. Wastes generated from this facility are also limited to an average of approximately 20 to 'ii gallons and are stored on -life low appro'<im felt' three months until hauled off -site by a licensed waste management hauler.

These substances ore requited lo comply with relevantfederal slate, and local health and safety laws, which are intended to minimize health risk to the public associated with hazardous materials. Therefore. Irrputts related ho ro utine transport, use, of dispose of hazardous materials during open atio-n would be less Ihon significant.
h} less-lhan-Sigvrllconl',porch As discussed in Threshold 4 Cal, a variety o1 hazardous substances and wastes typical lo standard.construction projects would be stored and used on the project sIte dtreeg canihucllon ol the proposed project. Accidental spies, lodes. fires, explosions, or pressure releases involving hazardous materials represent a votential threat to human health and the environment_ Luring both construction and operation of the proposed project, there is potential for release ol ticzardous materials related to storage, transport use, and disposal from construction debris. landscaping, and commercial products_ However, the proposed project would to required to adhere to Federal, state. and local laws, such as the Calfomra occupotiondl Safety and Health requirements. Hazardous Waste Control Act: Coif ornla Accidental Release Prevention Program, and the California Health and Safely Cade. which ore intended to rninirnee r'sJ 10 public health associated with hazardous materldts_ Therefore, imp ocls would be tens than significant.

No fmpocJ. No schools are located within 0.25 mites of the project sire. The rieares! school.

Cathedwl City Elementary, is located approximately 2.5 mile north or the project trio. f�fl Impact would occur.
d} Less-thon-Signifkplrf impact. The L4312 Ph45e I ESA or the project silo discusses the regulatory database report horn Environmental Onto Resources, Inc_ [MR), which detemtlnes, it rtre CItyai Rrnche?Ova
127
T2-2
Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
1991
RTC -162

Responses to Comments
RItz,Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
proposed project Is a listed regulatory site and whether there are parry mappable regulatory database :sites, The followin a databases were reviewed for this assessment: NPL Proposed NPL.

NPL lJ JS, Delisted NPL, CERCLLS, CERCLfS-NFRAP, CORRACTS, RC.RA-TSDF, RCRA•LC G, RGRA- SQG, RCRA-GE5QG, US ENG CONTROLS, US DST CONTROL ERNS, FiJDS, SWF, LUST, INDIAN LUST, UST, ASi, US BROWh4FIFLDs, viRc TUR,SLIC. RESPONSE, VCP, HtS1 CAA -SITES, TOXIC PITS. P-Solify 65, and Indian Reserve, Details an each pf these databases can be und In Appendix L According to the database report, the project rile is listed on the CHMIIRS and RCRA-SOG databases, The CHhMIiRSlisting does not constitute p Recognized Environmental Condition JRECJ because of the small-scale nature of the Incident The Riverside County Hre Department responded to a solo vehicle occident on the road in front of the project site that resulted in the release of approximately one gallon at diesel fuel from a truck's saddle tank, Inlormalron on the RCRA-Generators database Indicates lhat the proposed protect was Identified as a Small Quantity Generator of hazardous. wastes In 1942, likely related to wastes generated during construction or renovation activities. The type of hazardous waste generated was not identified in the database listing. The database indicates that there we no violations associated with the RC1tA-Genersatar listing- The RCRA•Generator database Is a listing .of facilities that are recruited 10 register for tracking purposes due to the amount of hazardous waste generated and are not necessarily sites with reported contamination incidents:

There are no EnvinoStor facilifies fisted within a 0, 5- ie distance of the project site: Based on the databased report discussed above, the proposed pralect would not create a significant to the public or Me environment, and Impacts would be less than significant, e) No impact, The proposed project is not located within 2 miles of a pubhc airport. nor is it located within an airport lend use plan. The netarestairport it Palm Springs International Airport, located approximately a miles away, Therefore, because the site is not located within an airport land use plan or within 2 miles of a public /public vie airport. there would be no impacts, fj less-trhan•Sigriifieorrt frnperci. The City participates in the Triverside County inlaid -Jurisdictional Lazard Mitigation Pion 1r.kJHMPt. The proposed project would not interfere with the City -s emergency plans The City's main evacuations routes ore the Interstate I0 ri-iol and Highway 11 1 ICity of Rancho Mirage 20171, Access to these evra•cuatlon mules and all local road=- would be maintained during construction and operation of the proposed project_ Emergency pro=_er:Ivres or desion features required by federal, slgfe. or City regulation would be implemented as appropriate during construction and/or operation. Maintaining access along oil local roads during construction would rninimire the potential for trralfic eonflictf with designated evacuation routes. and implementation of emergency procedures would minimize the pptenllal tar interference with on adiaplea emergency' response pion_ The proposed project would be constructed over the course of three years and would not impede access to local roe ass as e°aacuoflan roules. The operorion of the haled would nor Irtduce o iubstanlial Increase it traffic as none of the newly constructed residences will have permanent year- round residents on -d special events et the event spaces would abide by the special events traffic and parking plan to be prepared by the crpp6cant, Therefore. impacts resulting from the proposed project would be Ions than significant
City vt Rrnchc ?Ova
128
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Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
1992
RTC -163

Responses to Comments
RItz,Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
Liss -triers -Significant frrr act. Accolding to Exhibit 27 of the City's General Plan Safety Element. the project site is located within a moderate fire threat zone and as adjacent to a high fire threat zone [City or Rancho Mirage 201 7,_ HiswPvet, the City's General Pion Safety Element also notes trot The historical record indicates that the wildland fire hazard in Rancho Mirage is relatively low" [City of Rancho Miragie 20171_
The types of potential ignition sources that currently exist in the area include vehicle and roadway, electrical transmission IEne, and machinery associated with various land uses in the vicinity, as well as off -site residential neighborhoods, The proposed project would introduce potential Ignition sources but would also include conversion cat fuels to lower flammability landscape and include better access throtrgnot>< the site, managed and maintained landscapes, higher site awareness/monitoring, and generally a reduction In the rereciiiveness of the areaas landscape to ignition. Fires from aft -site would not heave continuous fuelsacross thissite, and therefore. would be .expected b burn around and/or aver the site through spotting. Burning vegetation embers may land on project structures but are riot likely to result in Ignition baser on ember decoy rotes and the types of non, combustible and ignition resistant materials that will be used on site, The proposed project would eornpN with ignition resatanf fire and but lime codes -and would include a Icryerea fire protection system designed to current codes and inclusive at site-specrtic measures that aril result in a Project that is less susceptible to wildtre than 'surrounding landscapes and that would facilitate fire lighter and medical aid response. Further, modern intrrastrLJc1ure will be provided along v.tt' Implementation for the latest Ignition resistant construction methods and materials. All structures are reouiied to include interior sprinklers consistent With City of Rancho Mirage rand County of Piverside Fire and Building Codes. Fuel modification areas recetwe fuel reduction treatments initially, and then maintenance over time includes removing ail dead and dying m{Itelio4 and maintaining appropriate horfaonlal and vertical spacing.
dy complying with all tire -retorted codes, elle proposed project would not expose people or strut_ I' is to a significant lick, injury, tsl death Involving 'Midland fares_ As such, Impacts would be less than tignilicanl.

9.3 Mitigation: Measures
hkta erslllyofran n,edsules requsred.

CIty ai Rrncha ?Ova
129
T2-2
Cola

Ritz -Carlton Rancho Mirage MND 11942
November 2024
1993
RTC -164

Responses to Comments
Ie. HYDROLOGY AND WATER QUALITY
RItrCarlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024

HYDROLOGY AND WATER QUALITY -
- Would the project:

Potentially
Significant
, Impact
Less Than
Significant
with
Mitigation
Incorporation
Less Than
Significant
Impact
Na
Impact
a) Violate any water quality
standards ar waste discharge
requirements or otherwise
substantially degrade surface or
ground water quality?
0 _
0 El
b) Substantially decrease
groundwater supplies or interfere
substantially with groundwater
recharge such that the project
may impede sustainable
groundwater management of the
basin?
❑
[]
El
i
c) Substantially alter the existing
drainage pattern of the site or
area, including through the
alteration of the course of a
stream ar river or through the
addition of impervious surFace,
in a manner which would -
0 ❑
EJ
n
ii, resti t in substu'iLal erosiers cr
siltation an or off site;
0 U
•
•
ii} substantially increase the rate or
amount of surface runoff in a
manner which would result in
flooding on or off site;
fl
0 IN
Ili
Ili) create Or contribute runoff water
which would excee-d the
capacity of existing or planned
stormwater drainage systems or
provide substantial additional
sources of polluted runoff. or
E
ill
0 II
Iv) impede or redirect flood flows'
Ill •
E
•
CItx ai Rrniha ?Ova
130
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Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
1994
RTC -165

Responses to Comments
RItrCarlton Rancho Mirage
Initial Study/ Mitigated Negative Declaration
July 2024

HYDROLOGY MID WATER QUALITY -
- Would the project
Potentially
Significant
impact
Less Than
Significant
with
Mitigation
Incorporation
Less Than
Significant
Impact
No
Impact
d)
In flood hazard, tsunami, or
seiche zones, risk release of
pollutants due to project
inundation?
ej
Conflict with or obstruct
implementation of a water quality
control plan or sustainable
groundwater management plan?
10:1 Setting
Part of the following analysis is based on the information provided in the Preliminary Drainages Study for Ritz Carlton Rancho Mirage report, p!epared by Tory R, Walker Engineering. The report is included as Appendix b fa the Initial Study_
Summary of Existing Condillons
The Residences
T2-2
Colic
The majority of the existing ;rte is amass graded aria there is lithe to no ve=getative cover. The total drainage area of the project site ti approornately I a acres with Hydrologic Soil Group Type') soils. The soil type was assumed based on the proposed project's geotechnic[rl sh,dy j1he pioposed project is hotrraapped by the Riverside County hydrology manna' or the tIPCS Web Soil .Survey' Hydrologic Soil lafaupType B soils have moderately bow runoff potential when ihoroughly wet. They also have between 1t'.% and 20% clay and 50% to ?0% stand and have Ioarny sand or sandy loam textures 'USDA 2007f.

On -site runoff h convoyed via sheet flow and shallow drainage courses to the proposed project's discharge points along the western and eastern properly boundary (Rgrre 10-1 gl. The existing site is dMcied into throe tsrxsins, Basin 103 {denoted by 1Co series nodesj, Eosin 2D0 (denoted by 2170 series no desj, and hgsin 3C7p (denoted by 3 aeries node0. Basin 100 drnins generally west 10 the gutter on Frank Sinatra Drive {bIschnrge Point 1 I rrlgure 10- I al. Flom bischarge Point 1. flow is convoyednorth in the Fronk Sinatra Drive gutter to on exisfnp inlet and storm drain system, which eventually discharges to a natural drainage channel. Basin 2iO chains generally east to Discharge Point 2 In the naalurcl drainage chonnet located er3st of the site, B€,rs-rr 300 drains west to DIsahorge Point 3 al the Mirada Circle : tter, which flows west and everrlualfy discharges to a notutal drainage channel.

Sky Mesa Recreallioncoi Area.

The existing site is p❑rfially groded worth generally pool desert vegetative cover.The told drgingge area of the project site is npproxarnately 2.66 acres with Hydrologic Soil Group Type B soils. The soil Type was LIB yr Rrncha ?Ova
"31

Ritz -Carlton Rancho Mirage MND 11942
November 2024
1995
RTC -166

Responses to Comments
Rltz.Cariton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 21124
assumed based on the proposed project's gelatochnlcal study (the proposed project is not mapped by the Riverside County hydrology manual or the MRCS Web Sol Survey?, On -site rutiotr is conveyed ma sheet flow rand shallow drainage courses to the proposed project's discharge point along the western property boundary., JF bure 14-1 bJ. The existino site is divided into Iwo basins_ Borsrn 400 [denoted by 403 series nodes.}, grid Basin 5E0 'denoted by 5430 wiles nodes)_ Eosin 440 drain; generally west to the existing Ritz Carlton development 'Discharge Point 4), basil500drains northwesr to Discharge Point 5 in the existing naturar drainage channel west of The site.

10.3 Discussion of Impacts:
a� less-Noon.SSgnif`Icarri impact: Construction activities associated with the proposed project could resWH in wind and water erosion of the disturbed area leading to sediment chscharges.

Similarly, as described in Section 9, Hazards and Hazardous Materials_ fuels, oils, lubricants, and other hazardous substances used during construction could be relecaSed and model water quality. The proposed project is required to comply with the NPDES State Water Re owceS Control board Construction General Peanut Order iJo. O9-Xti07-DWQ for stormwater discharges and general construction octivities and yr corporate standard BMPs such as regurrar cleaning or sweeping of construction areas and impervious crew- and various stormwaler 6MPs such as ilhaiton medi;o screens. In compliance with itse Construction General Permit. L SYJPPP would be prepared that specifies MAPS that would be irnpiemenred during construction 4o minimize impacts to water ovally, Therefore, irnirrascts would be lets than significant, bj terra-Ihurr SfgrJflcarrf lrepacd: The proposed project would not utilize groundwater during construction yr operation According to the 2055 Geotenhnlcal Report, the depth of groundwater in the vacirrity of the project site is beieved to be greater Than 200 feet As such, impacts to groundwater supple's would he less than significarri- cj L
less-titan-S1gnifkarif impact The majority of the existing site is mass graded and there h little to no vegetative cover. The total drainage area of the project Ile is approximately 14 acres with Hydrologic Soil Group Type b sails. The soli type was assumed based on the proposed prolect'a graclechnlcal study [het proposed project u not mapped by the Riverside County hydrology manual or the NRCS Web Soi Survey}, On -site runoff is conveyed via sheet how and shallow drainage courses to the proposed project's discharge points along the western and eastern property boundary [see Existing Condition Hydrology Map in Appendix DI. As shown can the Existing Condition .Hydrology Map, the ate is divided info three dravloge bows. one droning west to the gvtter and storm drain system on Frank Sinatra Drive. one draining east to the natural drainage channel located east of the site. and one draining west to the Myada Circle gutter, which flows west and eventually discharges to a natural drainage channel.

The proposed protect includes residential condo and townhome type buildings, road. driveway. parking, patio arsd landscaped areas, The project site will be divided into three major drainage basins such that the overall site drainage patterns wli remain similar to the existIng oonditlon (Proposed Condition Hydrology Map In Appendix DJ- The develppr'nent will increase the impervious area and the drainage area: therefore, underground detention vaults are proposed to manage the increase in peak Flow to below existing levels.

LIB yr Rrncha ?Ova
132
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Gantt

Ritz -Carlton Rancho Mirage MND 11942
November 2024
1996
RTC -167

Responses to Comments
RItz,Carlton Rancho Mirage
initial Study/ Mitigated Negative Declaration
July 2024
the Sky Mesa Recreation Area Includes a restaurant with real top garden 'pull Into the natural hillside) , dtiveway, patio, poolsidewalk. lawn, and desert landscape areas, The project site will be divided Into two major drainage basins such That fhe overall site drainage patterns will remain similar to the existng condition, The proposed project reduces the average on -site slop, rn©ximIzes pervious area ljy incorporating roof top garden areas for the restaurant, and pre vrdes extensive landscape areas throughout the sire. Therefore, no Increase In peak flow 'ales is anticipated In the proposed condition.

As such, the proposed project wad nalsubstcanlialfy alter the existing drainage pattern such that sutestantial erosion would occur on or off site. Therefore impacts would be leis than significant less -flan -Significant impact? With Implementation al the proposed project, the flow patterns of the site until Ioigely stay the same'. The proposed project would implement underground detehlion vaults. Detention bases anoiysls was conducted for each or the detention vaults. The Drainage study Found that the outflows for 1Cil.year storm events al the d'scherme points will be reduced by al 3 cubic tees per second, offsetting the 1.52 cubic feet per second increase that would have aceurred without detention. As such, the proposed project would nal substantially aster the existing drarnasge patterns such thief et would increase flooding on or oftsite. Impacts wourd be less than signil'ccrrrf, cl lit. lens-titan-SignlRcael felpeicft Refer to responses in Threshold IOCCJIft and 10(cifMij. The Deli -sage Study' 'Appendix Dl that was prepared for the proposed project concluded that, during operation, the flow patterns of the site wl largely story the carne with implementation of the proposed project. Altsroegh the proposed project would increase the amount of Impervious surface at the site compared to existing conditions. this increase would not be significant.

Further, underground detention vaults would be implemented as part al the proposed project lo ensure runoff from forge storm events would not exceed the capacity of the stormwater drainage system. As such, impacts would be less than significant. cj iv.
less -limn -Sig llicarrt Impact: According to ExhY,it 26 of the City's General Plan Safety Elernent rCily of Rancho Mirage Mil 3), the project site rs not located in any type of flood tone as defined by the Flood Emergency Manragemere Agency (FEMAI. According to FEMA. tine protect site is located wlthln Zone M. or an area of minimal Ilood hazard 1,FEMA rid.). Refer to the responses above regrarding proposed storrnwaler teeiltties per the Drainage Study. Impacts would be Iasi than tiepin -cord,
di No impact Refer to response to Threshold 1 (cJ(ivJ. The proposed project would not be located within a I OCYyeal flood hazard area (City of Rancho Mirage 27I7J_ The project site is located app cox inately 100 rnnes inland from the Pacific Glean and therefore would not be subject to tsunami inundation- Further. the project site Is not located near a large starrdfng body of water_ `he claseat body or water is tie Whitewoter River Iocared approximately O,6f. stiles to the ,oithwest: Thus, inundation by seIche (or standings waver is considered neglgible• As such, no Impeclwculd eccut.
of less •thars•SfgnifTcanf impact A drainage sandy has been prepared for the proposed Project and Incorporated into protect design, as discussed Previously, The dranage study and protect designs has been prepared consistent with the requirements al the City's MAP Design Manual, consistent with the requirements or the Santa Ana Regional Wafer Quality Control Board CItyof Rrnclrc ?Ova
133
72-2
Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
1997
RTC -168

Responses to Comments
RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
{RWQChi alder io-0d3(Regional ,MS.1 Pet mit).The City alPoncho Manage, alongwifh other Riverside County cities within the Santo An RWQCB. and Riverside County, voluntarily applied for and received a carnet to discharge stormwater to the Santa Ana Pinar (Order No.

R8-2002-0011, NPDES No. CAS 618033j. This MS4, originally approved in IRK+, is currently under review Tor Its Iourth term ra•rssucrrsce by the Santa Ana RWOC6. The City's MS4 permit regulates activities related to the quality of discharge through the stormwarar monogamenl program. the proposed project would be required to comply with all applicate pions. including policies and programs referred in the City's General Plan Safety element. such as establishing and enforcing regulations and Quidert es forlhe developmenland maintenance of project -specific on -site retenrionfdetenllon basin that implement the TIDES program. enhance groundwater recharge, complement regional flood control facilities, and address applicable cow -sunny design policies. The proposed project would not conflict Of obshuct with the applicable water duality plans, Additionally, as descrt ed above. the proposed project would not interfere with groundw+ter rect+arger or use. Therefore, imp -acts would be leis than slgnileaf.

10.3 Mitigation Measures
No mitigation meenures required.

LIB ai Rrncha ?Ova
72-2
Coot
134

Ritz -Carlton Rancho Mirage MND 11942
November 2024
1998
RTC -169

Responses to Comments
RItrCarlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
T2-2
Cont
IntenteanalN left blank
City ai Rrncha Keno 135

Ritz -Carlton Rancho Mirage MND 11942
November 2024
1999
RTC -170

Responses to Comments
It. -01 ritmirl•ppRZytii
DUDEK
F}Q 1O1e
Eceson ConcloinR Me; f r Rmriences RraGoAon
Fit 'artr.Row,G>R NIrsiLA
T2-2
Cont.

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2000
RTC -171

Responses to Comments
RItrCarlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
IntenteanalN left blank
CItx ai Mewha ?Ova
T2-2
Colic
137

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2001
RTC -172

Responses to Comments
Flaft 10 -lb
Ex g Condlions HIFIrolugy h1e{a hi Sky Mesa Retrett roll ed ab ;woo agog I*hpPike 0
12-2
Cont.

DUDEK

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2002
RTC -173

Responses to Comments
RItrCarlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
T2-2
Cont
IntenteanalN left blank
City art Rrncha Mine 139

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2003
RTC -174

Responses to Comments

11. LAND USE AND PLANNING
RItz,Carlton Rancho Mirage
initial Studyi Mitigated Negative Declaration
July 2O24
Less Than
Significant
Potentially
with
Less Than

LAND USE AND PLANNING -
Significant
Mitigation
Significant
Would the project;
Impact
Incorporation
Impact
No Impact
a) Physically divide an
established community?
Q
.
■
b) Cause a significant
environmental impact due to
a conflict with any land use
plait, policy, or regulation
adopted far the purpose of
avoiding or mitigating an
environmental effect?
[J

0. ■

11.1 Salting
the protect site Is situated on ❑ t of portions of Assessor parcel numbers 684 -33C -O26, -26, -32 which have a General Plan Land Use designation of Commercial: Resort Hotel {Rs-HJ and also on parcels ON -020-012, 012, -I4 carrying an Open Space: Mountain Res.ervs Oil) designation.

The project site is surrounded open space to the north. northeast east. and ~vest and residential to the south and nosthwesi.
11 Discussion of trnperlcls
dj No impact: The proposed project would be located entirely within the 16_13 -Clete protect site, which is r kl rendly vaunt. None of the proposed protect cornponerrts would potentially black or lnnpede mDyerrlOrSls betty@®r1 torrounding established communities. No Impact wouldaccua. bj ins-than-Sigoinconl Impact The protect s,rie is currently zoned Resort Hotel {Ps-Hj and Open Space. Mountain Reserve trrtRl in the General Plan 'City of Poncho Mirage 20171. The proposed hotel suites and villas are located on the Rs -H zoned property and therefore consistentwith the General Prim designation This designation allows rot the, development of hotels and destination resortsw;th frrnited, anrllasy commercial uses, such as spasrecreational faciiTrties, restaurants, lounges. and small retail shops that directly support the primary use_ The sky mesa Is located on the MR zoned portion el the prefect site which it assigned to public lends or property subject to conservation easements in the Santa Rosa Mountains. Use: are limited to recreationot activities, such as hiking as equestrian and non-ri granted bike trails and facilities consistent with the need to protect sensitive biological resources. Vehicular access .g not permitted in Chia designation- Under existing conditions, the Sky Mesa portion of the psclepf would conflict wlib the underlying land vse designations, however. :as port of the proposed project, the cpg]ticanP Is proposing an amendment 10 tt,e City's General Plan Ihal would expand the Resort Hotel IR.s-Hj designation and zoning to encompass the Sky Mesta portion of CIfy ai frrncha?O a
140
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2004
RTC -175

Responses to Comments
RItz,Carlton Rancho Mirage
initial Study/ Mitigated Negative Declaration
July 2024
the site, which Is o privately owned property and not public land. As noted above, the MP. zone was adopted for the purposed of avoiding or mitigating possible impacts on sensitive biological resources. As discussed in Section 4, Biological Resources, the proposed project could result in significant impacts sensitive biological resources related to the Sky Mesa Recreation Area; implementation of mitigation measures WM•310.1 through MM-6IO-6 would) reduc a potentially significant Impacts related to bunowIng owl, sonsilave replies and other vvildlre, and compliance wilts the CVMSHCP to a laves below significance. As such, rezoning llse Sky Mesa site horn MR Eo Rs -J would not conflict with the City'€ load use pnicy of protecting sensitive biological resources,
Per the description of allowable uses for Rs -H aulllned above, the Slay Mesa Recreation Area would be consistent with its -H one With future approval and adoption of the zone change by COY Council. the proposed project would not conflict with the City's General Plan with regard to allowable land uses.

She project site is surrounded open space to the north, northeast, east. and west and residential to the south and northwest. Additionoly, the existing Ritz Coition Resort is lop pled directly north of the site proposed tar the Ritz Carlton resIdenues and directly west of the site proposed far the Sky Mesa Recreation Are¢, As such. the proiect's proposed uses would be compatible with nearby land uses: the proposed protect would be required 1n comply wllh the goals and poicies of the General Plan and the Cii-y's zoning codes. the General Pan, Land Use Element contains several gosh oppicable to the. proposed project.

Includina providing a resort residential community of desirable neighborhoods,ra variety of community €acilities, and high -quality development, meeting the City's future needs by providing high -quality commercial land uses distributed throughout Rancho Mirage, preserving the scenic vaewsheds from adjoining properties and public rights -of -ways, and utilong fle.>sibie development policies to provide quality amenities within open space. The proposed protect would place residential suites: hotel villas, event space. cgrrrmercial. and amenity space on a previously disturbed site wllh similar surrounding land uses. The proposed project would Include high quality design for resort W. quality commercial uses. and open space amenities whie preserving existing viewsheds and scenic r®sources. Thus, the proposed project would not conflict wilh any land use plan_ pahcy, or regulollan adopted for the purpose of avoiding or trrltigaling can environmental effect. ProJecl implementation would not result in signit-rcdnt physical environmental impacts related to land use pion or zoning inconsistencies, impacts would be lees than significant.

11.3 Mitigation Measures
No mitigation measures required_
LIB yr Rrnchc Mime
Ritz -Carlton Rancho Mirage MND
November 2024
2005
141
T2=2
Cont

11942
RTC -176

Responses to Comments

12. MINERAL RESOURCES
RItz.Carlton Rancho Mirage
Initial Study) Mitigated Negative Declaration
July 2024
Potentially
Less Than
Significant
with
Lass Than
MINERAL RESOURCES — Would the
Significant
Mitigation
Significant
presje t
Impact
IncorRoration
Jrnnact
Na Irnaact
a) Result in the loss of availability
of a known mineral resource
that would be of value to the
region and the residents of the
state?
b) Result in the loss of availability
ofa locally important mineral
resource recovery site
delineated on a local general
plan, specific plan or other laird
use pan?
ril
■

12.1 Setting
The city is located in the Palm Sprinas Production-C. SIP-C) lone according to the Department of Conservation [DOC: 2307J. The project site is located on Mineral Resource. Zone rMPiJ.3.

12.2 Discussion of Irnixscts
a.bl
No rnopacftThe project site Is lot Otto JA RI -3; which is defined as oteats coniaining known or Interred mineral occurrence$ of undetermined mineral resource significance.

Additionally, no mineral resource recovery site Is delineated In the City's General] Plan.

Therefore, no impact to locally important mineral resources would occur.

12..3 Mitigation Measures
No m'ligaton measures required.

CItyai Rrncha?Ova
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2006
RTC -177

Responses to Comments
RItrCarlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
IntentiosolN Iett blarrk
CItx ai Mewha ?Ova
T2-2
Colic
143

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2007
RTC -178

Responses to Comments
18, NOISE
RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
NOISE — W1fou9d the project
result in:

Potentially
Significant
Impact
Less Than
Sri gnificant
with
Mitigation
Irscornoration
Less Than
Significant
Impact
Na Imaact
a) Generation of a substantial
temporary or permanent
increase in ambient nose 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
groundborne vibration or
croundborne noise levels?
0 I 1
D
c) Fvr 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 mikes of a
public; airport or public use
airport, would the project
expose people residing or
working in the project area to
excessive noise levels?
n

13.1 Setting
phis section k based upon the Ritz -Cochin Residences Nose si=- Ir s =lx!r'; p!epared bw Urban Crossroads The noise report i5 included as AppendiN E :nos Initial ' cs; Background and methodologies aegarding the no analysis ale found in Appendix. E 7o assess the existing noise level environment, 24 -hour noise level measurements were taken al five locations in the project silo {Kure 13-11. the noise level measurements were colrected by urban Crossroads, Inc, on Thursday, December 5, 2Or?,
SIgriticance CrHerla Summary
the fellav,•ir,g tignrfictrnte criletia ale based On currently adopted guidance provided by Appendet G of the i.T.alitorna Environmental Quaity Act ICEQAa Guidelines, While the CIiy rl Rancho Mirage General Plan Guidelines provide direction on noise compatibility and establish noise standards by land use type that are sufficient Iv assess the significance of noise impacts, they do not define the revels at CIty ai Rrncha ?Ova
144
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2008
RTC -179

Responses to Comments
RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 24524
which intseases are considered substantial for use under Guideline A, CEQA Appendix,G Guideline C applies io nearby public and private airports, if any, and the proposed project's land use cornpahbiiity, Noise Impcicts shill be tcrssidered signillcont If any oat the following occur bs v direct result at the proposed development. Table 1B.T. Significance Criteria Summrarysnows the significance criteria surrstnav motllx.

Tobie 13.1. Significance Criteria Summary
Analysis
Receivinv Land Use
Carsdilian(sJ
Signihcr€ncr Criteria
Daytime tegnitinse
ari SiFA Traffic
Noise -Sensitive
H ciresent is =:dC+dBA CNEL
=6dBA CNEL project
increase
If ambient is 60- 65 dBA
CNEL
3 dBA CNEL Project
increase
If ambient is > 65 dBA CNEL
≥ I',5 dBA CNEL Project
increase
Non -Noise Sensitive
If ambient is c 70 dBA CNEL
2 5 dBA CNEL Project
mCtedie
li arrioierrt is ≥ 70 dBA CNEL
23 dBA CNEL Project
increase
Operational
Residential
Exterior Noe Leval
Standards
Sep Table 3-I
It crribienl is e 60 dBA L-,
≥ 5 dBA L,n Project
increase
Ifu,i ientis €0-65 dBA1- 23
dBA 1.- 'Project
increase
ff ambient is > 65 dBA L„
≥ I.5 siE-A L---L---i Project
increase
Canslrvctlon
Noise Sensitive
Perrnifled between 7-,[10 a,m, c 603 p.m, Ntrind y to
Saturdays' with no acfMiy allowed on Sundays or
haidays.

Noise Level Threshold
85 dBA L. ,
n/o
Vibration Level Threshold.

D VJB
n/o
Source'. Appier- -11,. 1.

Existing Noise Level Measurements
T : ussess the existing noise level environment. 24rour ,noiselevel measurements were taken at three locations in the project site tL1. L2 and L3' IFiigure 13-1). The receiver locations were selected to describes c nd document the existing Hoarse environment within the project site, Figure 13- I provides the boundaries of the proposed project study area and the noise level measurement k cordons. To fully describe the exlsitrsg noise conditions, noise level measurements were collected by urban Crossroads Inc. or,, Thursday, December 5th, 2019. Appendix E Includes study area phol os.

CItyai Rrncha?Ova
145
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2009
RTC -180

Responses to Comments
Ritz.Carlton Rancho throes
initial Study) Mitigated Negative Declaration
July 2024
Measurement Procedure and Criteria
Tc :�J‘sscube the existing noise envlipnreert, the hourly noise lever were rneawted during typical weed y condition.; over o 24 -hour period, By collecting individual hourly noise level measurements. it Is p ossIble 10 describe the daytime and nighttime hourly notes levels and calculate the 24 -hour CNEL the long-term noise readings were recorded using Piccolo Type 2 integrating sound level meter and darlaroggers. The Piccolo sound revel meters were coibrotect using a Larson -Davis caalYrratct, Model CAL 150. All noise meters were programmed in "ylo'nl" mode to record noise levels in "A" weighted form. the sound level meters and microphones ware equipped with a wiidscreen during all rdeasurernenis_ AI noise level measurement equipment satisfies the American National Standards Institute tArwIJ siondnrd spaciflanCians for sound level meters ANSI S1_4 -20I 4/EC dI 67'2-1_2013_ Nafss Measurement Locations.

The longterm noise level measurements were positioned cis close to the nearest sensitve receiver locations os possible to assess the existing ambient hourly noise levels surrounding the project site. Both Caltrans and be FA recognize that It 1s not reasonable ro collect noise level meamemenis that can fully represent every part of a private yard, patio. deck, or balcony normally used for human activity when estimating impact for new development projects. This Is demonstrated in the Caltrans general site location guidelines which indicate that sites merit be tree 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 rte express intent of the analyst to measure these sources, Further, FTA guidance stoles. that it is not necessary not recomrnenaed that existing noise exposure be determined by rneasurng at every noise -sensitive location in the proposed project area Rather. the recommended approach is to characterize the noise ersvitonrnnnt for clusteis of sates based on measurements or estimates at representative locations in the community.

Baised an recommendations of Cattrdns and the FTA, II is riot necessary to collect measurements cit each ndivldUsal building tar tesfdence, because each teceiver measurement represents a group or buildings that share acoustical equivalence. Irk other wort, the area represented try the receiver shares similar Shielding, leraein, and geometric relolionship to the reference noise Source. Receivers represent a location of no sensitive areas and are used to .estimate the future noise level impacts.

Collectingdeference ambient noise level measurements at 1he nearby sensitive receiver locations allows for a comparison of be before and after proposed project noise levels and is necessary to assess polentiol noise impacts due 10 the proposed piceecI's crsntribUtion tits the ambient noise levels Noise Measurement Reeulrr"
She noise measurements presented below focus am the average or equivalent sound levels dL-t1 The equivalent sound level (L.,rJ represents a steady stale sound level containing the same total energy elS a time varying signal over a given sample period. Table 13-1, Signil-rcone_e Criteria Summary, identities the hourly dciytime 47:0O a.m.la !O Xft p.m_} and nighttime t1Qo©p,m. lo 7:DC1 n,rrrr,J noise levels at each noise level measurement location Appendix E provides a summary or the existing hourly (ambient noise levels described below;
• 4acalion Ll represents the noise levels north Of the project site near existing Vi1Ios pl- Mirada single-family homes and dirt park tag Ief_ The noise levels al trris location consist primarily of Parking Ipt vehicle movements iron dirt lot to the south. The energy {logarithmic) average CIIy ai Rrncku ?Ova
14 T2-2
Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2010
RTC -181

Responses to Comments
RItz.Carlton Rancho Mirage:
initial Study) Mitigated Negative D claratioe
July 2t:T24
daytime noise level was calculated at 4?,7 dBA L- wllh an average evening noise level of 46,7 (IBA L_, arid an average nighttime noise levet at 44. I dBA L_.,. • Lactation L2 aepresents the noise levels near the eastern boundary of the project site near the existing Ritz -Carlton hot& and vacant land. The energy logarfthmc) overage daytime noise level was catculeted at 53,4 dBA L-, with an (sw€eage everting noise level of 43.4 dSA Lea rand an average nighttime noise level of 46, l dBA Le, The noise levels al this location consist primarily of walkway activity around the Rite -Carlton Poncho Mirage. • Location L3 represents the noise levels by the western boundary of the p1Q+ect site near to the gated entrance of the Mirada Estates, the energy [Icigarithre cJ orrerage davtin'se noise level was calculated at 51.'-4 siBA Let with an crverage evening noee level of 46.6 deA L-1 and an average nighttime noise level of 41.7 dBA L Traffic on Fronk Sinatrra Dave represents the p-rirnoiy source at noise at this location_
Table 3-I, Significance Criteria Summary, provides the (energy average) rtase levels used to describe the daytime a=nd nigrhtirne ambient cendifiens These daytime and nighttime energy average noise levels represent the average of all hourly noise levels observed during these erne periods expressed as a single number. Appenriix E provides sir rnmery worksheets of the wise levels for each hew as well as the minimum. maximum, L,, L L. L5, L:, L,, L. Le, and L percentile noise levels observed during the daytime and nighflime periods,
The background ambient noise levees in the project site are dominated by surface street and berrying lot activity. This includes the auto and heavy heck activities on study ate eoadwdry segments near the noise level measurement locations- the 24,hour existing nelse level measurement results are shown on Table 13-2, 24 -dose ambient No lie Level Measurernents.

Table t3=124-tlowr Ambient Nose level Meeasene?meeats
Locution'
Deli-cnp1icn
Energy Avetagr Noise' Laved
cleA t.}s
tierytErrier
Everting
M httime
L1
Located north of the prrjri_]slip rear the existing
Villtas of (\Asada single -tritely homes ord an open
dirt pasting lot,
•19.7
4c7
44 I
L2
Located near the eastern tlaanctary of be
project site near the existing Fitz -Carlton hotel and
vacant land,

53.4 48-Q
4_1
L3
Located by the, western boundary of the project
site near to the gated enircnce cl ihes Mrada
Estteas,
50,4
46,6

41.7 Sources Apperidid E.

Nelms
5€.e FItgur9 t3.1 1or tee eerie IG/ I meree.nem6nt locations. - Ert gy liegolthrniej coverage lesree Therm-tierm 2,C -hour Iirsuriernent w,rksheh era 1Ickaded rrti Appeerle E'Doer' e 7O0 i.rm Eo 7%Yd p.m.: fitr = 7.dd p.re to l0:dd rem.: -1.40h ' e 1 a44 rem to 7:ad a m LIB ai Rrricha ?Ova
147
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2011
RTC -182

Responses to Comments
RItz.Carlton Rancho Mirage
initial Study/ Mitigated Negative Declaration
July 2024
Sensitive RaceIvor Locations
To assess the potential for lung•lerm short•terrn cons1ructlon noise impacts, the following sensitive receiver locations, as shown on Fgure 13-2. were identified as representative locations for analysis.

Sensliive receivers are generally defined as locations where people reside or where the presence of unworried sound could otherwise adversely altect the use of the land. Noise-sensitve land uses are generally considered io include schools. hospitals, single-family dwellings, mobile home parks, churches, libraries, and recreation areas. Moderately noise -sensitive kind uses typically include multi- family dwellings_ hotels, motels, dormitories out•patienr conics, cemeteries. golf courses. country clubs, olhlsilcrlannis clubs. and equestrian clubs_ Land uses that are considered retdtIvely rnsersirrve fo noise include business, commercial, and professional developments. Land uses that are typically not affected by noise hekudeinduirrlar, manular:ll-aing, unities. agriculture, undeveloped laird, parting lots, warehousing. liquid and solid waste foci-iies. salvage yards, and transit terminals Receiver locutions are located in outdoor living areas ?e.g„ backydrdsi 4r 10 Seel Isom any existing or proposed barrier or at the building facade, whir,hever is closer to the project site. based on FH'4Yfs gulcsonce, and consistent with additional guidance provided by Cartrans dad the FTA Sensitive receiver locations in the proposed project study area include the nearby resident -lot uses. us descntred below, Other sensitive laird uses In the protect site that are located at greater distances than those identified in this noise study will experience lower noise levels than those presented in this repos; due to the additional attenuation from distance and the shielding of intervening structures, R1: Loctated approxinsalely 591 feel north of the project site, R1 represents existing resicfenlial homes f t Santa Rosa Mountain Lanai west of Frank Sinatra Drive. A 24-haus noise measusemenl was taken near this location, U. to describe the existing ambient noise environment, 1r2 Location R2 represents the Rai -Carlton Rancho Mirage located no-rtheast of the project site at roughly 66 feet. A 24 -hour noise measurement was taken near this location, L2, to descrr1e Irie existing arnbtent noise environment.

R3: Location Ra represents the existing residential homes t29 Grande'View Courtj on the south side of Mlrcrdo Circle tat approxinnlely 21 reel horn ih'e prr]ject site_ RI. Location R4 re,preaenii the exislIng residential home located at 30 Grande View Court aptxoxbrotely 33 feet from the project site baundarY,
ItS Location Ry represents the existing residerillal home located at al Miradra Circle approxirrrately 49 feet from the project site boundary, R4; Location R5 represenh the existing residential home located a1 d6 Mirada Circle approximately 108 feet from the project the boundary,
R7; tocatlo n R7 represents the existing resIdental home located 45 Mirada Cirole approximately 125 feet from the project site boundary_
Rd; Location R8 represents the existing residential home located at 1 Mirada Circle orptxoximately t 60 feet from the project site boundary_ LIB ai Broths, ?Ova
148
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2012
RTC -183

Responses to Comments
Ritz.Carlton Rancho Mirage
Initial Study/ Mitigated Negative Declaration
July 2024

13.2 Discussion of impacts
at Less-firnrr£Significurrt !tripod, Per Chapter 8.45 of the City $ Municipal Core. the e>terior noise limits for Resort commercia9 space is 65 CNEL from 7_03arn t6 6.O0pm, tfi CIJrl tram afeprn Io Ifs Opro And 55 CNafrorn 14000pm to 7:OOom'City of Rancho Mirage 202U. The noise tmitstor Recreation space ] 70 CNEL from 7 ODarit to 6:Oc}prn. 65 CNEE glom d:ODprn Its 1D-.D7prn, and 60 ChL lwm 1D;0+7prn to 7:00aan City of Rancho Mirage 2021t. The noise limits for Residential land uses es 55 CNEL from 7:ODrtsrn lo 6:DOrprn, 50 CNEL From &Wpm to 10t0Optn, and 45 CNEL From IQpppm to 7:00am (City of Rancho I Irroge 3D2t1 �.

Cansfruc$ton Morse Impact
this section analyzes potential impacts resulting from the short•terrn construction activities associated wish the sevala.pmenf of the proposed project. Na1se generated by the proposed p”roject construction equipment will include a combination of trucks power tools, concrete mixers, and porlabia generators that when combined can reach high levels. the number and mix of construction equipment are expected to occur in the following stages. • Laernatltlan
• Site Preparallan
• Grading
• Building Construction
• Paving
• Architectural Coating
T2-2
Cont
this construction noise analysis wad prepared using reierecsce n#Ise level measurements taken by Urban Crossroads, Inc_ to describe the typical construction activity Hasse leveet toe each stage of proposed project construction. The construction reference noise level measurements represent a list of typictrl construction activity noise levels liaise levels generated by heavy construction equipment can range From approximately 68 d8A to in excess of 80 dB\ when measured at 50 feet, Hard site conditions tare used rrs the corwtrvction noise analysis which result in noise revels that attenuate iar decrease] dt a rate ofd dBA: for each doubling or distance from o point source I I, e, construction equipment), Fore ample. t� noise lever e1 •50 dBA measured at 50 feat glom the noise source to the receiver would be reduced ro 7a dBA at 104 reel From the source le the receiver qnd ry uld be !ether reduced to h8 dBA dt 2474 r99t'flOm the Star SCO 10 the receiver.

Wingthe relerence construction equipment noise levels ❑nd the CadnaA halls prediction model calculations of fine proposed project construction noise level impacts al the nearby sensitive receiver locations were completed. To assess the worst -case cdnsfruclion nolse fevers; the proposed project consnucfion noise analysis relies on the highest noise level impacts when the equipment with the highest IeferencEr noise level Is operating at the closest point from the edge of construction activity area for each stage of construction to fib nearest receiver location. Appendix E Includes rh,e derailed CadnciA constructors noise model inputs.

CIB '? Rrncha ?Ova
149

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2013
RTC -184

Responses to Comments
RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
!Lily 2024
the construction noise analysis shows that he highest construction noise levels wit occur when construction activities take place at the closest paint from the edge of the c o nstiuction activity or ho each of its, nearby receiver locations- As detailed in Appendix E. the unmitigated construction noise levels are expected to range frorn 40.1 to 74,6 dBp L.: _ at the nearby receiver locations. Ptaposeet project construction noise levels cue considered exempt it uctivilles occur within the hours specified In the City of Rancho Mirage Municipal Code Section I5.D4.03D of

7.00 a.m. la 7:00 p.rn. on weekdays.

As stated m.Appendlx E. to evaluate whether the propsased project will generate potentially signhticant shorn -term noise levels at nearby receiver locations. a construction -related noise level threshold is adopted tram the Criterid far Recommended -Van-crowd: Occupational rsidiSe Exposure prepared by the National institute for Occupational Satety and Health ;NOSH), The threshold of B5 dBA L>, is used as occeptalare thresholds for consbuction noise at the nearby sensitive receiver locations. The construction noise analysis presented in Appendix, E. shows thrtl the noise sensitive residential' receiver locations will satisfy the 65 d5A LL, significance threshold during proposed prof -, t construction activities as shown an Table 13-3. Consituctian Noise Level Compliance. lherelote, he noise Impacts due lot proposed project constn ction noise is considered less ttran significant at all noise sensitive receives locutions_
Tablet3-3. CtrnatrsrcNon Nake LeveLCompliatnce
fis+:niwr Location'
Construction Noss. Lavols (d6A L.y}
Highest Construction
Noise Lave1s2
thresholds
Thresh o{d
Esceededr1
RI
52 2
85 ti .:)
R2
69-6
85 No
R3-

70.3 135
No
R4
70-6
85 No
R5

70.2 85
Na
its

65.2 85
No
R7

66.5 85
No
fif8
56,1
85 No
Source: Appendix R.

Notes;
Noise Recce locations cm shown on Figure 13.2,
High.r, construction noise level ccalnrkittwts based on -distance Irclrtr the conslructici n naive source saltily ton alrloy receives ocotigrss ac# shown In Appendix E- Cansh rotors raise level thresholds os shown In fable 13.1. StgnIllcance Clerks Sun-inary, ti Do the sstirna1ed project consrrsrtion noose levels exceed the construction noise level threshold@ Cperalicnaf Noise Impacts
this section analyzes the potential stationary -source operational noise impacts al the nearby receiver locations, identified it Figure 13.2 and dethned in Section Ial 3, Sensitive Receiver Locations, resulting from the operation of the proposed project, CIty ai Rrncrsa ?Ova
150
T2-2
Colic

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2014
RTC -185

Responses to Comments
RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2824
Is llexpected the on -site project -related noise sources will include: as conditioning units- peal activity arid outtfoar courtyard acti+it?. This noise analysis is intended to describe noise level Impacts associated with the typical operational activities at the project site.

Using the reference noise levels to represent the proposed project operations that include.

IJIt]on Crossroads. Inc_ c•edcudated the operational source Hasse levels that are expected to be generated al the project site and the pro pas ed project -related noise *vet Increases that would be experienced at each of the sensitive receiver locations. Table 13-a, Project Operational Noise Levels. shows the calculated proposed project operational noise levels during the daytime hours of 7:070 a.m. to 10:00 p.nn., evening hours of 7:00 p.m, to 1000 pm. and the nighttime hours fli I0:0U p.m. l0 7:00 a.m. Table 13-4. Proleo r Operational Nome Leveh. shows that the proposed project operational noise levels will range from 26.7 to 47.2 db' Table 13-4, Project Operational Moi%e level%
Receiver
Locati ni
naked Operational Noise
Level%(cdt1A 1.41
Norse tevel 8inntiorcla
(dllA teq),
Threshold Exceedec?'
Dory
Eve.

Night
Day
Ere.
lytf lhd
Day
Ever,
WO
RI

29.6 30,3
2t,•7
55 50
45 No
No
No
R2
41-9

42.4 .373
55 54

4.5 No
N.

No
R3

46.8 47.2
44 55
50 45
Na
No
NO
R4
43J
43,7
422 55
5D
45 No
No
No
R5

43.5 43.6
4Z0 55
50 45
No
No
No
Rb

43.1 43.5
40,8 I 55
50 45
No
No
No
R7
4'2

4.2,3

40.7 55
50 45
No
Na
No
R8

35.3 35.4

33.7 55
50 45
No
No
No
Source: Appendix E.

Nets;
See Faaurel-2tcrlltenoise source arrare:-eefvet3oxarions Prclecl r.xierallonotnotra lever culcutotbansAncludedIn.ApperrcibE day or Rorrhs7 WOO tr:bort raise 14 0* stentltrda Qor rr4slrhwlroI land vie. es shown In Toole 13 1, li₹antilconee crlterfs aw+xrnry.

Da We e:lirrated Protect operational noise s+aurca activities etceed the noise level standard s r "DrOr ` 7)40 0,11. tG7.00' p.m: "Ewe,ning" 7;0Q p,m. to 1000 p,r;1.: iskihr = 9U:0) p,rri, li 7;00 Ci.r To demonstrate ccsrnpRonce with local noise regulations, the project -only operational noise levels are evaluated against exterior noise level thresholds based an the City of honcho Mirage exterior noise level stdndirds Err neaby noise-sensitIve receiver locations. Table 13-4, Poled Operational fslolse Levels shows that the operational noise levels assacialcd with project will satniy the City of Rancho Mirage 55 dBA L_ daytime. 5D d$A L:•, evening and 45 dBA L,_, ni ihlrime exterior noise level standard at all nearby receiver locations. Them fore.. the operational noise Impacts ore considered less than sigrtiiiiCant of rite nearby noise -sensitive receiver locations.

To describe the proposed protect ppera1iorxsl rlotse level cantr unions, the ;proposed project operational noise levels are combined with the existing ambient noise revels meosuaernents for the nearby receiver locations potentially Impacted by proposed project operational noise sources.

CItyai Rrncha Mine
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2015
RTC -186

Responses to Comments
Ritz,Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
tables (9r-3 through 9-5) and calculations In Appendix E show that the proposed project operational noise level increase ranging from [r, 0 to 4.7 tlE#A L,;, as such, project operational noise level contributions satisfy the operational noise level Increaser significance criteria presented in Table 13-T, Significance Criteria Summary, Therefore, line proposed project related operational noise level Increases at all sensitive receiver locations will be less than shgnflcard, rift -Site Traruportaifc n Noise Impact
To assess the ofFsde transportation CNEI. noise level impacts associated wilt development of the proposed project, noise contours were developed based on Ritz -Carlton Residences Traffic Impact Analysis {;Appendix, El_ Noise contour boundaries represent the equal levels al noise exposure and are measured in CN€L from the center of the roadway tJ6i[e contours were developed for Iht= following tfalfit scenarios:
• fj sting w-ha+_rt ) With Project:: This scenario refers tca the existing present -clay 2D19 noise conditions, without and with the development of the full Pealed, the existing with Project scenario' wit nvi octuafty occur since the Paajectwould not be fully constructed and oparationaluntl 202.3 condltlant_
• j sienna a uLAmblen fEA Z1231^f thoul ) With Prsslect'fhb scenario refers 10 the existing noise conditions plus the esflrrrated years of background growth In ambient traffic conditions without and wllh l he development of the full Project. • fx,is ino D US Afnb ent o u5 GJmu wive rEAC 3323 W t"'1oaf ) With ProheCt; This .scenario refers to the existing plus ambient plus cumulative noise conditions of 2023 without and with the proposed Project,
• f-For¢on year 2440 Wrhout f With Proiec This scenario refers to the future Horizon Year conditions at Year 2041) without and wish the proposed Project. This scenario represents buildout of the General Plan land use and includes all cumulative projects identified in the Traffic Impact Analysis.

Noise contours were used to assess the proposed project's incremental traffic -related noise Impacts at land uses adjacent to roadways conveying proposed project iraffIc, The noise contours represent the distance to noise levels of a constant valve and are measured Isom the center of the roadway for the 70, 65. and 60 deA noise levels. the noise contours do rtol consider the ejfecl of any existing noise barriers or topography that may attenuate ambient noise tevehs. In addition, because the noise contours reflect modeling at vehicular noise on area roadways, they appropriately do not rellecr noise conhibutIons lrom the surrounding stationary noise sources within the project site. Appendix E present a summary of the exterior traffic noise levels fur each fro -Mc condition, and also includes the traffic noise level contours worksheets for each traffic condition,
An analysis of ea Idling traffic noise levels pious traffic noise generated by the proposed project has been included in this report for informational purposes and to kitty analyze al the existing traffic scenarios identified In the Ritz -Carlton Residences Traffic Impact Anahy'sls prepared by Urban Crossroads, tic {Appendix F). However, the analysis of existing oft -site traffic noise levels plus traffic noise generated by Me protect scenario will not actually occur since the proposed waled would not be fully constructed and operational until fs.rture year 2023 plus cumulative CIty yr Kendra ?Ova
152
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2016
RTC -187

Responses to Comments
RiteCarlton Rancho Mira .e
initial Study) Mitigated Negative Declaration
Lily 2O24
conditions. Therefore, no mitigation measures are considered to reduce the Existing Plus Project traffic noise level Increases. The EAC 2O23 and Horizon Yeor 2O4O traffic noise conditions that include all cumulative projects cue used to determine the significance al the proposed project off -site traffic noise level increases on the study area roadway segments.

The Existing 2O[9 without Pr eject exterior noise levels ore expected to tango frorrs 62.0 to 76.9 ddA CNEL. without accounting for any noise attenuation features such as noise barriers or topography The E_s sting 2O19 with Project conditions range from 636 to 76.9 r fee CNEL. The Project oft -site traffic noise level increases range Prom 0.0 to 1.6 deA CNEI. on the study area rotsdway segments.

The EA 2023 without Project eEreriat noise levels are expected to range from 62.4 to 77.2 dBA ter €L without accounting for any noise attenuation features such as noise barriers or Popogophy. The EA 2323 with Project conditions range from 63.8 to 77.2 dEA CNEL, The Project off•site traffic noise level increases range horn Cr0 to I.4 dee CNEL the EAC 2023 without Project exterior noise levers are expected to range from 62.7 to 77.4.0 A Ch#L without accounting for any noise attenuation features such as noise barriers or Popo graphy. The EAC 202e with Project conditions range from 64.0 to 77.4 dEA CNEL The Project off -site traffic. noise level increases range from OO to 1.3 dtlA CNE . Based on the significance criteria for offelte traffic noise presented In Table 131. Significance Criteria Summary. land user adjacent to the project site roadway segments would experience Iess•Ihan-eignihsant noise level Impacts due to proposed project -related traffic noise levels.

The Horizon Year 2O.4Gwifhaut Project exterior nnase levels are expected to range horn 63.1 to 77.8 dBA Ce1EL, without accounting for any noise attenuation features such as noise barriers or topography. The Homan Yeor 2O4Owith Project conditions range Irom 64.3 to 77.8 ERA, Cl-1 _The Project off -site traffic noise level increaser range from 0.0 la 1.2 rt13A CNEL. Based on the sigmitic one a criteria far off -site traffic noise presented in T able 13.-1. Signiticanc e Criteria Summary. land uses adjacent to the study area roadway segments would experience less than-signiBcanl nape level impacts due to unmitigated proposed protect -related ti otflc noise levers_ Summary
The proposed project would not generate substantiot temporary Of permanent increase in ambient noise levels in the vicinity of the proposed project in excess of standards established In local plans or by other agencies, The proposed project would comply with ail State el California noise requirements. the California Building Code, and policies and programs outlined in the City's General Plan Noise Element . Theretore, Impacts would be less than regreiter:nl.. b) Less-Nion•Sfgnlfteant impact TTr iii AliAigafFish Incorporated. Construction hos the potential to result et varying degrees of temporary ground vibrationdepending on the specific construction activities and equipment used. Ground vibration levels associated with varioul: types of construction equipment are summarized in Table le -5, Vibration Source Levels for Construction Equipment. Based on the representative vibration levels presented for various construction equipment types, it is possible to estimate the human response i;annoyoncej casing the following vibration assessment methods defined by the ETA.

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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2017
RTC -188

Responses to Comments
Rltz.Carltrari Rancho Mirage
Initial Study) Mitigated Negative Declaration
July 2024
Table 13-5. Vibration Source levels tor Conslruclion Equipment Equipment
Vibration Decibels (V -c15) at 25 toot
Small bulldozer
Sb
Jackhammer
79'
Loaded Trucks
Sd
Large 5uidozer
87 Some Appendix E.

Consltuctlon activity can lesult ire varying degree al ground vibration, depending on the equipment and methods used distance to the affected structures and soil type. II is expected that ground -borne vibration tram proposed project construction activities would cause only intermittent, located intrusion. The proposed p-roject's construction activities most likely to cause vibration impacts are:
• t-sea+r'y Construction Equipment: Atthot.rgh all heavy mobile construction equipment has the potential of causing at least some percepflble vibration. ttse vibration is usuufy short-term and is not of arrffleient magnitude to cause bui1dhg €outage, « Trucks -Trucks hoiAng building materials to construction sire{ Con be sources of vtbrptlan intrusion if the haul rouses pass through residential neighborhoods on streets with bumps ar potholes, Repairing the bumps and potholes generally eliminates the problem.

Ground -borne vibration levels resulting from construction activities occurring within the project site were estimated by data pub€ished by the Fedesol Transit AdminiStration (ETA]. Construction activities that would have the potential to generate row revels of ground -borne vibration within the Project site during varlaus stages of conssrucllan. Using the vibration source level at construction equipment provided on ruble 13-5. Vibration Source Levels for Canstruct"san Equipment, and the construction vtta1lori nssessrner I methodology published by the FA, it is possible to estimate the project vbtation Impacts. Table 13-6, Unmttigated Construction Equiprnent Vibration Levels, patents the expected project related vibration levels at the neesby receiver locations,
Table 13-6, Unmitigated CaneltucIian Equipment Vibration Leech Receiver''
l}iTkjece to
Canst.

Aetivlty
[FeetS'
Receiver Vibration Levels (Vdb)
Threshold
(lld$)s
Threshold
Rsccae rrd4
Silll
itH
E i
^ +
i
re
4 o
b
44 a p
N
0€
id,
n
i
in) ` s-
-
I• i

1.8 =

44.5 45,8
45;8
50 No
R'2
-._
I ', :
734
74,4

74.4 SO
No
13 21

60.3 81- 3
55 3
89,3

39.3 DO
Yes
R4
33 344 75.4
112.4

83.4 83,4
BD
Yes
R5
69 44.8 i 65,8
72d

73.8 71,8
so
No
R6
108
38 9 59.9

66.9 67.9
a7_9
RD
N©
City yr Rrndia ?Ova
154
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2018
RTC -189

Responses to Comments
Ritz -Carlton Rancho Mirage
Initial Study) Mitigated Negative Declaration
July 2024
Table 13-6. Unmitigated Cans nsclian Equipment Vihrotion tevek tilarealvera
Difisienceite
Cored
Acite y
00092 `j'41
Receiver Vibrator
Levels (Vd6
a
w -p
a—
Threshold
Threshold
Exaeeded4ti
o o
m
.4 l~ n
". •,
tr
sc
e
a
P. a
en z m
-; (VdEtr
R7
1?5

37.0 58.0

65.0 66.0
66 0
RS
160

33.8 54,8

61.8 62.8
6_ 5
50 No
Source: Appersotlx E.

Notes
' Receiver locations are shown on firgura 18.2,
S Distance from receiver locations to the source of the nearestacnshuctlan activiiy..

Based on the Vibration Source Levels at Construction Equipment in Appendix E Does the peak v33ratlon exceed the vibration thresholds..? Dees the iyriceatson level exceed the ETA acceptable tibrati r level? At distances ranging horn 21 to 5{+1 feet from the project consituc.tion activity, constructions virration velocity kewels ate expected to rouge fiorrr .t5.n. to 6'3.3 VdE and will exceed the ETA 80 VdB threshold tar human annoyance at receiver locations P3 and R4 (Figure I3 -2r- These impacts would be pole Minty significant, however implementation at a 550 -fool vibration butter zone frorrr sensitive receiver locations R3 and P4 {MM -Not -1I would reduce vibration levels to 03 and R4 to 78.0 v'de and would not exceed the FGA Ito VdB threshold.

Vbratien levels et the site of the closest sensitive receiver are unlikely to be sustained during the enters construction peirod but will occua reIVIF only during the times that heavy conslruc&in equipment is operating simultaneously adjacent to the project atte perimeter. Addifionaty. constructors of the project site would be restricted the daytime hours between 7_0:1 a_m• and ern° p.m. Monday to Saturday vvtth City of Rancho )Mirage rer rrrements thereby etrr patine potential vtbratlon impacts daring the sensitive evening and nighttime hours- With this in consideration in addition to the implementation at MM-NOP-1: impacts would be fess than tnliconi. cj. No impact. The project site is not located within the wicinity of a private airstrip or an airport land use pl+art, rror is it lkrcated within 2 miles Pl a pubiia airport or public use airport. The crggell oirpart to the project site is Palm Springs Airport which is located approximately 4 miles north of the project site, The people teSiding or working in the project area would not be subject to exr e,s;ir n irport- cr plane-reldted noise levels Therefore. there would be no impost. 133 MINgiceion Measrxes
MM- NO).1
During proposed project construction. the applicant shall require deal large -leaded trucks and dozen (greater thori 8Q000 paundsj shall net be used wilhir 50 feet {tong the entire southern property fine. instead. small rubber -tired or alternative equipment shall be used within this area diming proposed project construction to reduce vibration effects. If all mobile equipment wed during proposed project construction are less than

80.800 pounds. then the 50 -foot buffer mitigation is not required.

City vt Rrnchc?Ova
155
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2019
RTC -190

Responses to Comments
LEGEND:

R11:R11:Z Carlton
e5ic-2ncY;
Ah5oaswrcmont Location's
301tr+_L� 'Jrlsra A'.T.13nnwt1 al"]'J
DUDEK
FrOJ 131
Noise Measurement Ima
T2-2
Coat
page 159 of 253 in Comment Letter T2
Ritz -Carlton Rancho Mirage MND 11942
November 2024
2020
RTC -191

Responses to Comments
RItrCarlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
IntenteanalN left blank
CItx ai Mewha ?Ova
T2-2
Colic
157

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2021
RTC -192

Responses to Comments
1 LEGEND:

1. eeeiiel Lan tImis
1 • D8tance from receiver to PAa}t bite tsaund•rv{in fee) T2-2
Cont
_MALI 'dihlv A':TAnnztf Lib
DUDEK
FIGURE 13-2
Noise MeesurameraLCAlliong
ioiigy ht,1 "A,r4

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2022
RTC -193

Responses to Comments
RItrCarlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
IntenteanalN left blank
CItx ai Mewha ?Ova
T2-2
Colic
159

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2023
RTC -194

Responses to Comments

14. POPULATION AND HOUSING
RItz.Carlton Rancho Mirage
Initial Study) Mitigated Negative Declaration
July 2024
Less Than
Significant
Potentially
with
Lass Than

POPULATION AND HOUSING -
Significant
Mitigation
Significant
Would the project
Impact
Intoraaration
impact
No Imaact
a) Induce substantial unplanned
population growth in an area,
either directly for. example, by
proposing new horn!, and
businesses) or indirectly (for
example, through extension of
roads or ether infrastructurej7
0 n
Li) Displace 5uI:)stantiai numbers of
existing people or housing,
necessitating the construction of
replacement housing
elsewhere?
L]
0 0
ilill

14.1 Seithrrg
T2-2
Cant
This section evaluarea the proposed project's consistency with applicable plans, policies. and regulations as they relate to population and housing, Data sources for this section include Southern Ca#farnia Association of Governments j CAGI and the Clty of Rancho Jdlrage General Plan - Housrng Element,

14.2 Discussion of Impacts
at leas-thorn-SigrslT corr impact The proposed project would involve the construption al 105 res dentiol suites, hotel villas, event space!, commercial spaces, and an amenity space totaling 234,748 square feet, Although the IOd residential suites are anticipated to be healed as a condo hotel unit in which residents are allowed to live at the residence only during a specitfed lime tram!, the sesir;iential units will Pe analyzed as typical dweIling un11s would tor the purpose of this analysis.

The Southern California Association of Governments ¢SCAGj is a metropolitan planning organization that represents the Counties of Ventura. Los Angeles. San Bernardino, Orange.

Riverside, and imperial SCAG reported the City's population to be 18.739 persons as of 2018 ISCAG 20 t 9a 1. I n 201 tl th e City hod as total of 14,492 housing units, and In 2017 the City had a total of 16.902 lobs jSCAG .2019al, By 20015. SLAG projected the City to have ra Jroputntion of 25,200 persons and 21,200 jobs ISCAG 24201, These numbers are reflected in Fable 14-1. Existing and Projected Population, Household, and Employment Growth in the City of Rancho Mirage. ,According to the City of Rancho Wage's General Plan - Housing Element icily al Rancho Mirage 2022j, the 2021 • 2'029 13erlonal Housing Needs Allocation IRHNA) determined thpt the Clty has been asi{tned o total of 1,746 housing units.

CIty ai Rancho VID e
16O

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2024
RTC -195

Responses to Comments
RItrCarlton Rancho Mirage
initial Study/ Mitigated Negative Declaration
July 2024
The proposed project would construct 106 resIdentlo! units, As staled earlier, these tesrdenticsl units would operate similar to time-share properties and therefore Muse residents would not be in the proposed residential units'yeamound. Because the proposed residential units are not typical residerrlfar units and residents cannot occupy them year-round, theses housing units do not count towards the RHNIA. housing unit determination.

SCAG's Local Profile Report for the City of Rvncho Mirage indicated that the City's overage household sire wins two persons per dwelling unit as of 2018 FSCAG 2O19al. Using these assumptions. implementation of the psop€ased project would have the potential to increase the City's population by 216 persons, This population increase would comply with S.CAG's projected population increase for the City [Table 1.l-1, Existing and Projected Population. HousehoId. and Employment Growth in the City of Rancho Mirage]
the proposed protect Involves the construction of residential sutras, hetet vitas, event space, a commercial area, restaurantt and amenities such as a pool terrace. Additionally, the proposed project h not a large employment tenter that would encourage people to move to the area far work.

Table 14.1. Existing sand ?rejected Population. Household, and Frrsplaaymenll Growth In the City of Rancho Mirc gle
2016
2045
Population
18 "200
e5.2U4
Households
9,CCO
13,003
Employment
16 600
21,203
Source: 'SC AG, 2020,
the anticipated populolion growth and employment growth as a Iestrll of the proposed project rite aligned with the City's growth projeets_ Further. the proposed project would generally tonnectto existing utlliflesand Infrostructure roc al ed adjacent to the project site. The proposed project would not construct new or extend existing unities or inirostructure into areas not currently served by such mprovements tree Section I9, Utilities and Service Systems, far a detailed analysis of potential utilities or infrastructure related to the projertl, Thus, the proposed project avauld nnl ,ndirectiv induce subrlanJial unplanned population growth rand impacts would be less than significant
c) NIQ Impact: the project liter Is a vacant, graded piol of land with no 6x:is-ling structures presernl- The proposed project would nether displace existing housing alas necessitate the construction of repiacetaient housing, therefore. no Inspasis would occur,

14.3 Mltlglatlan Measures
hto mitigation maasures required.

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161
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Coflt

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2025
RTC -196

Responses to Comments

15. PUBLIC SERVICES
RItz.Carlton Rancho Mirage
Initial Study) Mitigated Negative Declaration
July 2024
Pl1BLJC SERVICES —
Potentially
Significant
impact
Less Than
Sr gnificant
with
Mitigation
Incorporation
Less Than
Significant
impact
No Imaact
aj Would the project result in
substantial adverse physical
impacts associated with the
provision of new or physically
altered governmental facilities,
need for new or physically
altered goverrtniante! fad lities,
the construction of which could
cause signifjcant environmental
impacts, in order to maintain
acceptable service ratios,
response times or other
performance objectives for any
of the public service:

Fire protectien7 —E

b�
y
Police protection?
el
Sehoels7
0 •
i,",5
Perks?
fl
■
•
I
Other pidblic facilities?
111
0 •
El

15.1 Setting
File Profeclion
Fire services for tare City of Rancho Mirage are provided through a coops ral.,,e agreement with the Strata of California (Car-Firel and the County of Riverside Fire Department FRCFD) miry of Rancho Mirage n.d.a.;, Cal•FrafRiverssde County Hre Department is an ail risk, full -service fire department and has two fire stalinns loo tired in City of Rondo MIroge (Cify of Rancho Mirage 24171:

Poke ►rtif elan
twenty-four hour police proteolion is provided IC) the City of Rancho kiiragc+on d cnnlrocivnl boss by lime F iver3rde County Sheriiffs Department Ifs DI (Cty of Rancho Mdiage 2917), As of 2017, the City had ono officer per 786 resident. which ex.ceech the commonly acoepted iaiio of one officer poi 1,ow residents ICity of Poncho Mirage 2017),
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162
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Coot

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2026
RTC -197

Responses to Comments
RItz.Carlton Rancho Mirage
initial Study/ Mitigated Negative Declaration
July 2024
Schools
the City is loco+ed in the PS0rn Springs Uritiad School District fPSVSDJ and the Desert Sonds Untried School District IDSLI5DJ (City o1 Rancho Mirage 201]6). There is one public school and three Aware schools In the City ICity of Rancho Mirage 2C+'6). The public school is Rancho Mirage Bement -cry School The three private schools, are Palm vc1ey school ipra-klndergorten through 1?' grade). Morvwcod Country Day School dpre- klndergarfen to 6" grade], and Rancho M4irdee Ctrldren's School lore-kmdergosten to 4' grade].

Guided by the Parks Master Plan. the City hco exponded its parts and trail system throughout Rancho Mirage to adapt to the growing population. -Currently, these ore six. parks, including a mix at minx and focal parks Kite of Rancho Mirage 2017) There are no existing recreational appartuntlies on ste..

15.2 Discussion of Impacts
3t Fore protection?
less -than -Star ailicaM fmpace The ^losest floe station to the project site is Frye Station e>Jo, 50 {709:51 Highway 11 I )1. located approximately 2.7 miles southeast or the site. to addition to the two fire stations, five other County operated tire stations ore located close to the City Key of Rancho Mirage 2D17J.

Once operational, Cal-Fie/RCM would continue to serve the project site- Additionally. as discussed in Threshold iota) the proposed project wuuld not result In substantial unplanned population growth in the Crty. Although the proposed project would potentially result in © slight increase in calls for service to the project site in conmaiison to the existing conditions, thIS m.^.feasl3 is 2aLpGt$ d tb be nominal and not to tesulr in the need for new faci lites. Additionally, me proposed protect would pay the City's fire to. to help fund fire protection services and development Impact lees per Section 3.24. i20 or the CI1y's Municipal Cede (City or Rancho Mirage 20171. Overall'. it is anticipated that the proposed project would be adequately served by existing Ca-FrrefPCF roe -illy es, equipment, and personnel Therefore, the proposed project would require the construction not expansion of lire protection service racilltfet and impacts would be Jells then sigra icard.

Police protection?
less-than-S1gnifico rt Impact; Although] the proposed project would potentially result n a sight increase in cols foi service tp the project site in comparison to existing conditions, this Increase is expected 10 be norninad and nal result In the need far now poke faclities_ Gveraj( ft a nnecipaied that the proposed project would be adequately served by existing polce tp.cillties. equipment, and personnel. Therefore, the proposed project would nor rears re t!se construction nor expansion or police pretecrian facilities and impacts would Le less than sigruficon+, Schools?
less-limn-Slgnalcorrt Impact The p+reject she es located within the boundaries oil ltse PSIJ$P- Bvildout of the proposed project would result in expanded hotel facilities coromercial space.

CIry ai Rrncha ?Ova
163
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2027
RTC -198

Responses to Comments
RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
event space, and amenity space. The proposed Res[ciences at Ritz Caftan only allows u Wilted and non -permanent {not year-roundf stay for potential residences, and the proposed residence units are expected to serve as vacation and second homes, Because the residences do not function as typical dwelrng unit, the proposed protect is not expectedi to result in student generation.

The proposed project would pay all appfrcable statutory school developer fees. which would be wed for the potential construction and reconstruction of school facilities to accommodate students frarn new devercpmenIs (P U D 2a22i. I- oweveI. because the p -reposed project would not generate students the araject would result in the need for expanded or new school facilties. therefore, Impacts would be leas than signlicamt.

Parks?
No impact:As further discussed InSeefion I & Recreation. lha proposed proJecf would nor result In substantial population growth in the City. The number of employees haired to constnict and operate the proposed hotel would Po minimal_ As such, an ;note ate el patronage of park foc+Nikes it not expected, in addition, the number of hotel quests visiting existing perks would be minimal, as the proposed project would provide open space and ieereation facilities. Future hotel patrons wourd be mare Inclined to use hotel foci -Wes rather than comrnunrity parks. No impacts associated with the construction or expansion of park focliiltes would occur. °Met public f a?
T2=2
Goth
No )impact: The proposed project would not result in substantial poputation growtn In the City.

The number •or employees hired to construct and operate the paoposad hotel would be minimal. As such, a substantial Increase in patronage at Nbraries, community centers, and other p-ubllc racatles s not expected. therefore, no Impacts associated with the construction or expansion of pubic facilites would occur.

15.3 Mitigation Measures
t o mitigation measures required.

LIB vt Rrncha Mine
164

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2028
RTC -199

Responses to Comments
RItrCarlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
Intentionally left bkyrtk
CItx ai Mewha ?Ova
T2-2
Cont
165

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2029
RTC -200

Responses to Comments
RItz.Carlten Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
16, RECREATION
Less Than
Significant
Potentially
with
Less Than
Significant
Mitigation
Significant

RECREATION -
impact
Incoroaration
impact
No Impact
) Would the project increase the
use of existing neighborhood
and regional parks or ether
recreational facilities such that
substantial physical
deterioration of the facility
would occur or be accelerated?
IQ
n
b) Ooes the project include
recreational facilities or require
the construction or expansion of
recreatonal facilities, which
might have an adverse physical
effect on the environment?
146.1 Setting
T2-2
Coat
The main rity of the 16.1.3 -acre proiect site is currenity vacant and lea scrulh and east of the existing Ritz - Carlton Rancho Mirage Hotel. Guided by the Parks Master man, the City hasexpanded its parks and trail system Throughout Rancho M oge to oaopt is the growing papule Ban, there are no guiding recreallonal opportunities an site,
1,6,2 Discussion of Imp€rcts
ry ress-than-S gnifiicanf impact: As discussed earlier, the proposed project ',Mil provide approximately 35% open space mode up •of landscape3 arerts, pools, woter features.: email paths_ figure I -9a and I -9b sow the propo ed landscape plan rat the Residences at Rib Carlton and the Sky Mesa Iftecreafional Area, respectively. A desert landscape design is proposed throughout the project site including wallet cascades, multiple pools. rock escarpments. and fountains. 'v1+sitots cmd residents would the using the proposed and existing hole facilities provided on ale_
As discussed in Section 14, Population and Housing, the Proposed project wpUld not result in substantial papvfafian growth in, the Ciiy thatwourd inareate the use of existing parka end recreational roaiifies such tar substantial pttiytical deterioration or reoreaflenbi f[resllfies Wptmbd occur or be cmcceterated. Therefore, aubstnrtticl physical deterioration of these facklies would not occtx or be rsecelerated with Implementation of the p7oposed project impacts would be lessthan idgdlicgrrf b} lessAan-Signollcani Impact The proposed project wokid not result in substantial population goy" in the City. Further, the proposed project would not promote or indrecitg induce new development that would require the construction or expo—mon of ree ealiorrrl tacLifies. Because CItx ai Rrncha ?Ova
166

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2030
RTC -201

Responses to Comments
RItz,Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
Phe proposed projecl would not result In substantial population growth n the City, It would rr,l inr rease the demand for re creational facilities, As such, Impact; would be lets than s1gnihcant 15,3 Mitigation Measures
No mrligat;, r. ^ :.res rein red.

CItx ai Rrnhe ?Ova
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Cont
7'67

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2031
RTC -202

Responses to Comments
17, TRANSPORTATION
A
RItz.Carlton Rancho Mirage
Initial Study/ Mitigated Negative Declaration
July 2024
TRANSPORTATION —Would the
project:

Potentially
Significant
impact
Less Than
Stcgnifi t
with
Mitigation
Incorporaton
Leas Than
Significant
Impact
No
Impact
a) Conflict with a program, plan,
ordinance. or policy addressing
this circulation system, including
transit, roadway, bicycle, and
pedestrian facilities?
0 0
ills
b) Conflict or be inconsistent with
CEQA Guidelines section
15O64 a, aubefivisiran 1b1?
0 0
0 Q
c) Substantially increase hazards
due to a geometric design feature
(e,g., sharp curves or dangerous
intersections) or incompatible
uses (e.g., faun ,equipment)?
D
D
D
❑
d) Result In inadequate emergency
access?
0 17.1 Safltng
this section la based upon the Ritz -Carlton Residences Traffic Ernpcic1 AnoFysls i[raffia report) and Vehicle Mies Travelled (VIVO Analysis iVrrrl analysis) prepared by Urban Crossroads. The traffic report is included as Appendix Fl and F2 to this ,initial Study, Respectively. Addllionney, a poking assessment was prepared by urban Crossroads, The parking assQ;sment i; Included as Appendix fx or Iha Initial Study.

Rackgroursd and methodologies regarding the irafflc analysis and the parking assessment we faund In Appendix F and O. iespectively.

As discussed in the iroffic Report preparred for this Initial Study ;Appendix Fl, consistent wl'Ih County of Riverside traffic study guidelines. the study area Includes any Intersection of 'Callecfar" or higher cIas.sIficatign street. with "Caliectvr" or higher classification streets, at which the waled' will add 50 or more peal: hours trips. There fire three mail intersections analyzed In the Trotfic Report. A map of the three intersections is presented in figure 17-1.

I. Frank Sinatra Dr. and Davy'. 1
a Frank Sinatra Dr. and D,rwy. 2

3. highway I 11 and Prank Sinatra Di.

Bank Sinatra Drive is an east -west rnagar coiector running through the City. Most of the Frank Sinatra Drive is constructed to its ultinsate design standards with a 100 -Foot right -or -way, However, Frank. Sinatra Drive. west of Hi,way 111, is designated as a two-lane roadway In the General Plan. Highwcry I 1 I is the major GIB '? Rrnclia VID e
168
72-2
Coat

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2032
RTC -203

Responses to Comments
RItz,Carlton Rancho Mirage
initial Study/ Mitigated Negative Declaration
July 2024
arisen] conne c&tg most or the commercial centers of the Coachella Valley- Asa major arterial the route runs north-west tr south-east diagarsaly within the study area, highway 111 provider three through travel lines in each erection Highway I 1 I Is designated us a Riverside County CMP roadway.

The Traffic Reperl onayzed six deferent scenarios: Existing (2017) Conditions. E + P {Existing plus Project] Conditions, Existing plus Ambient Growth plus Project 1EAPJ (20 aJ Condtlons, Era rinrd plus Ambient Growth plus Project Plus Cumulative (EAPC] j21723j Conditions, Horizon Year {2111 Without Project, Horizon Year 12940) With Project. Each scenario are described further below:
• existing Canditlens: existing physical conditions have been disclosed to represent the baseline traffic conditions as they existed at the lime this report was prepared. EeIsting conditions are discussed in Setti4n 17.1.2
• E+P Conditions: The E+P arnarysie determines ciicuiallon system deficiencies Thal would occur on the existing roadway system in the scenario of the project being placed upon Existing ccnditioris_ The E+P scenarle Is einalyeed In Section 17.22 • EAP ConditIons The EAP {2o23J traffic conditions analyses determine potential traffic impacts based on a comparison of the EAP traffic con celiens to Existing conditions, To account tor background traffic glowih, an ambient growth factor from Existing conditions of r_l2% 12 percent per year over 3 years, compounded annually) tar 2923 conditions is included for EAP traffic conditions. Consistent with County of Riverside traffic study guidelines. the EAP analysis is intended to identify ' Opening Year" deecferrofes associated with the development of the proJectbased on the expected background growth within the study area. The EAP (2Cue3t traffic conditions are analyzed in Section 17.2,3
• EA PC Cone -Miens: The EAPC (2023) traffic conditions analyses cletermln-e the poteneet near -term cumulative circulation system deficiencies. Background traffic for these analysis scenarios fallow the some ambient grewih methodology descrrlaed above tar EAP lriiffic concellons.

However, EAPC traffic conditions also Include the addition of cumulative development traffic.

The comprehensive lief of cL'm,Flalive develapmen1 projects was compiled from 'reformation provided by the City of Rancho Mirage and Cathedral City- The EAPC (20231 tra!i c conditions are analyzed in Section 17.2_x_
• Hbtizen Year (20:10) CenditInns: Traffic projections for Horgan Year 12040) w11ts pro]ec1 eondBleeS were leaved trout the Riverside Transportation Analysis Model IRiv[AM modiised to represent bulldout or the City of Rant he Mirage. The Horizon Year 13€fCDI conditions analysis will 8e utilized to determine If improvements trended through redone' mitigation fee programs. such as the Crly's Development Impact Fee jDIFJ program or other approved Funding mechanisms can QCQorrrnodote the tong -ten g e cumulative trerlee at The target level of service {LOS) Idenleted by the City of Rancho Mirage. The Horton Year (2040 rralflc conditions are analyzed fn Section 17,..5,
The Hesizon Year 120401 conditions analysis will be utflzed to determine inprovements funded through reelnnai heinsper1allon n itigation fee programs. suth eis the Tigrrsporteelon Idiom Mitigation Fee LINSF), or other approved funding mecturusre le.g.. Community Fociftres District, etc.) can accommodate the Sense -range currtutotive teethe est the largest Level or Service 1LCrSJ identified in the City of Rancho Mirage General Phan. Other improvements needed beyond the "tunded" i nptovermenfs (such as Iocalifed improvements to non-Terviel are rdenefied as etch. Each of these regional' transportation lee programs are discussed In more detail in Appendie F.

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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2033
RTC -204

Responses to Comments
RItz,Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
Mothadalagms
t ev el of Service
Traffic operations at rapdwosy facilities rare described using the term "Level of Set e" 'LOS). LO5 i5 a gUalifptive description of traffic flow based on several factors such us speed. brave time. delay, anti freedom to rnaneuver. Six levels are typically defined ranging front LOS A, representing completely Free - flow conditions. to LOS F. representing breakdown in flow Resulting in stop -and -goo conditions. LOS E represents cparctiorss of or near capacity, on unstable level whale- vehicles are opetatIng with the minimum spacing for mainlailing unllvrm flow.
fntersectron Capacity Ancrfysis
the detn.rians of LOS for mlerrupted tratim flow (flow restrained by the existence of traffic signals and other hoffic cvnlral devktasJ differ slightly depending on the type of traffic control. The LOS is typically dependenfenthe quality of traffic flow at the nntersections along aroadway. The highway Capacity Mcsnual (HCMI methodology expresses the LOS rLt an intersection in terms of delay time far the various intersection approaches. The HCM uses different procedures depending on the type of intersection control.

Stgna&lzed tnfeasedians
The City of Rancho Mirage require sign -cited intersection operations analysis based on the methodology described in the HCM &h EcILtion, Intersection LOS operations are based can an intersection's average control delay Control delay rrxckrdes i Atio{ deceleration delay, queue move -up lane. 5Iopped delay, and firsrxl Cc.elefatiOn delay, For Signpfled intersections LO5 iS direclly related to the average control descy per vehicle and is correlated to a LOS designation as described in Table 17- , Signals ed Intersection Description of LOS.

Table 17-1. Signalized intersection Description of LOS
Des rlE*litan
Average C+aeltrel
Delay itS.corrdh).

VIC S 1.p'
Level oil
Service.

WC 51.O
Levi at
Service,
,K/c› 1.o
Operations mil-. very low clef rr °boarding with
favorable progression anel/ar short cycle ler h-
0 to I i1,U0
A
F
Operaihor s with law delay occurring with goad
progression snd,lor shod cycle lengths,

10.01 to 20,0CI
a
Operat cm with average delays rest liir►p fxra rr fat
progression and/or longer cycle lengths. Individual
cycle fadur.s begin to appear.
2003 to 35.0)
C
F
Operations with longer delays due f o a
Cr}mbe7plipn al 4.rt-ggvcfable progression, long
cycle lengths. or high WC rc-rtics_ Many vehicles
stop and individual cycle failures are noticeable.

35.(11 to 55.00
D
F
CItx ai Rrncha ?Ova
170
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Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2034
RTC -205

Responses to Comments
Ritz -Carlton Rancho Mirage
Initial Study1 Mitigated Negative Declaration
!Lily 2024
Table 17-1. Sugnolized intersection Description of LOS

0.recrfp1on
Average Control
Delay (Seconds),
VIC 51.0
Level pl
Service.

V}C 51 0
Level at
Service..

VIC > T .d!
Operations with high delay values indicating poor
progression, long cycle lengths. +end high V,/C
ratios. Individual cycle foiP.xes Core trequenl
occurrences: This is considered to be the limit of
acceptable +data's,
55fil to t0R.C'(J
=
F
Operation with deIoy's unacceptable to most
drivers occuning due to over saluralfon, poor
progression, n, or very long cycle lenglhs

80.01 and up
F
I
F
Soutcs: Appendix F.

Equations are used to determine measures of electiveness such as delay and queue Iength, The level of service and capaclJy analysis perfizrreed by Synchro takes into consideration opthniz rtion and coordination of signcdized intersections within o network Afl signalized study arena hrterseciions hawe also arIt¢ed the Synchro software.

Unslcnnlfzed interseciions
The Cary pi Rgin O4Q MIrage requrrg the op-erotiQns Af unsig ralized lntesseQlipns be evaluated using the methodology described in the HCM d" Edition- thu LOS' rating Ls loosed on the weighted average control delay expressed in seconds peg vehicle (see Table 17-2, Lin -signalized Intersection Description of LOSE,
table 11.2. Llnagnatlied Intersection Clescriphorr of LOS IS+emcrip ion
Average Control Delay Per
Vehicle (Seconds]
Level of Service.

VIC 5 TV
level of Service,
VTC 1.0
Line or no delays.
�'+fo Iii.^"4
A
Shorttrafftc delays.
10,01 fp 15.E
0 F
Average tr[rftic dean,
15-01. to:n al
C
Long traffic delety's,

25.01 1°35.00
D
Very Leg traffic delays:.

35.01 to 50,40
E
F
Extreme traffic delays
volh intersection
capaciir exceeded.
> 50.0D
F
F
Source. Appenalx F.

At two-way or slide -street stop -controlled Intersections, LOS Is calculated for ouch controlled movement and for 1l a felt turn movement born the rncrior street, os well as for the intersection as a whole, For approaches composed of a single lane, the delay is computed os the average of all movements In !haI lane. For all -way stop controlled intersections, LOS is computed for the intersection as a whole.

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171
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2035
RTC -206

Responses to Comments
Rltz,Carlton Rancho Mirage
tnitlal Study/ Mitigated Negative Declaration
July 2024
Traffic Signal Wa►ranf Analysis Methodology
1he ter:rn 'signal wasrairs' refers to the lest of established tPiteria sled by Call -funs and ether pubic agencies to quontrtativehe justify or ascertain the potential need for installation of a traffic sisipal at an otherwise urtsignalized kite iseElton. This are uses the signalwatran1 criteria presented in the latest edition raq the Ca'trans Catitornicr Manual on Uniform Traffic Cenhol Devices ;CA 4,4LJTCDJ. for allstuch area intersections.
the sigma wananl criteria for erring conditions are based upon several lac ten„ Including volume et vehicular and pedestrian traffic, frequency of accidents, rend location at school areas, The CAMUTCD Indicates that the installation of a traffic signal should be cansidered it ane or more all the signal warrants are met. Specifically, this TIA ullizes the Peak Hour Volume -based Warrant 3 as the appropriate representative traffic signal warrarrt analysis for existing study area istersectiorts for oil analysis scenarios.

Warrant 3 is appropriate to use for this I IA because Ik provides specialized warrant criteria for Intersections with rural chetecterlsflcs le.g, located in communities. with populations of less then 10.050 persons or with adjacent major streets operating above -40 miles per nousJ. For the purposes of this study, the speed f n1t was the bale for determining whether Urban of Rural warrants. were used fora given intersection Future intersections that do not currently exist have been assessed regarding the potential need for new traffic signals based an future average doily traffic fACITJ volumes. using the Cattrans planning level ADT-based signal warrant analysis worksheets.
traffic signal warrant analyses were performed for at or the fo owing unsigncixed study area intersect -art C=rank Sinatra Drive rend Dfiveway 1. and Front Sinatra Drive end Driveway 2 free Figure 17-11.

It is important to note that a sigt d warrant defines the minimum condition under which the installation al a tielfit slgrd might be. warranted. Meeting the condition does not require that a italic control signet be installed at a particular location, but rather, that other traffic factors and conditions be evaluated in order 1a determine whether the signal is truly justified. II should also be noted that signal warrants do not necessarily correlate with LOS. An intersection ornery satisfy a signal warrant condation crud operate at or above acceptable LOS or operate below acceptable LOS and net meet a signal warrant.

Queuing Analysis
A queuing analysis has been conducted for all intersections and project driveways. The. 95th percentile queuing of vehicles has been assessed along these roadways la determine potential queuing issues at the intellections.
the hafflc progression analysis tool and Merit IntersectLon anaiyas program, 5ynchro, has been used to assess the potential impacts/ needs of the intersections with traffic added from the proposed project. the SO1h percentile maximum queue k the maximum back of queue on a typical cycle during the perk hvvr, while the 95th percentile queue is the maximum back of queue with 95th percentile tratf c volumes durytg the peak hour_ In other words_ it traffic were observed for I CC cycles. the 95th percentile queue would be the queue experienced with the '75th busiest cycle Or 5% of the times. The 50th percentile or average queue represents the iyplcal queue length for peak hour traffic conditions, while the 95th percentile queue Is derived loam the average queue 'Am L6,5 standard deviations_ the 95th perce Mee queue is not necessanly ever observed: it is simply based on statistical calculatitsnr• CIf vt Rrniha?Ova
172
T2=2
Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2036
RTC -207

Responses to Comments
RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
Minimum Level of Service (LOS)
Per Goal I. Poky 1 ot the City of Rancho hhirage Gerierdl Mors {Cily of Rancho Mirage D17gf. the following tOS will be ul ed for study area intersections located within the City- Require development to ar_hieve a peak hour LOS d or bolter at Intersections rind toadotal/ segrneetRs, Deflerenty Criteria
To determine whether The addition of project traffic at o study intersection would result In a deficiency, the following will be utilized:
• A deficiency occurs all study area Intersections if the pre -project condition is of or Geller than LOS D (Les-, acceptable LOS), and the addition of project flips causes 1he peak hour LOS of the study area Intersection to operate al unacceptable LOS fi.e.. LOS E or FJ. Per the County of Riverside traffic study guidelines. Tor Intersections currently opeiaflung tai unacceptable LOS {LCIS E or F. a deficiency would occur if The project clsntributes.5p or more peak hour trips t+ pre -project traffic conditions.

Existing CO-ndltiOns
This section provides a sornrnrary of the existing circukaNan network. the city of Rancho Mirage General Plan Circula ion Network, and a review of existing peak hour intersection operations, traffic signal woman', and queuing analyses,
(Existing Circulation Network
The study area analyzed in Appendix f includes a total of three intersections as shown In Rgure I7 - Exhibit I h Appendix F Illustrates the study area intersections and idenlifies the number of through traffic lanes for existing roadways and Intersection traffic controls.

City of Rancho Mirage General Plan Circulation Element
A Grief description of each roadway Including existing anti planned roadway width Is provided below_ • Frank Sinatra Drive is an east -west major collector nrrening through the City of Ranches Mirage Most of Frank Sinatra Drive is constructed to its ultimate design sfandafds with a I DO -Foot reght- of-way, However, Frank Sulalra Drive. wed of Highway I I 1 . is designated as a two -lone roadway in the General Plana ¢ amity of Rancher Mirage 2017g), • Highway 1 1 1 e, the major arterial connecting most of the a:ontmercial,enters of the Coachella Valley, As a major arterial, the route luny norlh-west to south-east diagonally Wlrhi: the study areo, 1tghway 11I provides three ihrourgi travel lanes ih each cIrection, Highway 111 is designated as ra Riverside County CAM rwad'.vny,
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2037
RTC -208

Responses to Comments
RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
Truck Routes
The City of Rancho Mirage designated buck route map is shown on Exhibit 3-4 In Appendix F, Highway 1 I I is identitted as desrgnared Truck route.

Transit Service
The City of Rancho Mirage and Is currently served by the SunLine Transit Agency i5TA},. a public transit age-ncy serving vat -icon p,uisctictians thrgughout Caachellca Valley, Transit service is reviewed end updated bySTA periodically 10 address ridership, budgel and community demand needs. Changes in land use cars oflect these periodic adjustments which may lead to either enhanced qr reduced service where appropriate. It should also be noted that sunDial service provides special services for the disabled and seniors in(lr'I
Bicycle and Pedestrian Facilities
Existing bicycle and pedestrian faciliffes within Gd} are shown on Exhibit 3-6 In Appendix F. The General Plan identifies that Pedestrian and other non -molar circulation is encouraged its the City wherever possible {City or' Rancho Mirage 2(1 I ?gi.

Existing (2019) Traffic Counts
The intersection LOS analysis is hosed on the traffic volumes observed during the peak hour conditions using lrafffc count data collected in December 2019. The following peak hours were selected far analysis;
▪ Weekday AM Peak Hour 'peak hour between 7_D3 AM and 9;00 AM) - Weekday PM Peak flour Ipeak hoar between 4;04 PM and d;4C1 Pt I ■ Sahrrday Mid -day Peak Hour {peak hoot between I MOO AM and 200 PM) The weekday AM. weekday PM, arid Saturday mid -day ,peak hour count data representative of typical peak hourtratfic conditions in the study area. There were no obser+ation.s made in the field that wtluld Indicate atypical traffic conditions on the count dolessuch as construction. activity or detour routes and near -by schools were in session and operating on normal schedules. The raw manual peak hour turning rnovemen' traffic couotdata sheets are Included in Appendix F. These rcrw furrlaing volumes have been flaw conserved between intersections witlr limited access, no access and where there are csnrentty no uses generating traffic.

Existing Weekday average dully iaofric {A1 T1 volumes on arterial highways Ihrosaghg'ul the study area C21.43 Shawn on Exhibit 3=7 is App e+tsdbc F. fxsGing ADT volumes are based upon factored intersection peak hour counts co}ecled by Urban Crossroads, Ir1E,
A comparison of Me PM peak hour and daily traffic volumes of various roadway segments within She dude area indicated that the peak -to -daily relationship as approximately 15.06 pereerst. As such, the above eauction utilizing a factor or 5,23 eslimates the ADT volumes on the study area roadway segments assuming a peak•tadally relationshIp of approximately te.0e percent {i.e..

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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2038
RTC -209

Responses to Comments
RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
July 2024
110.01606 = 6.23{ and was assumed io sufflcIenily estimate average daily traffic {ACT) volumes far planning -level analyses.

Existing Canaforts intersection Operaliom Analysis
Existing peak hour traffic operations have been evaluated faa lhte study area intersections based on the analysis methodologies presented above. the intersection operations analysis results are summarized in Table 17-3, Intersection Analysis far l:xisliny (2019'. Conditions, which Indicates that all existing study oleo intersections ore Currently operating al on acceptable LOS ILe„ LOS D cyr batter'. during one of more of late peat hours_ The Intersection operations analysts worksheets are Included in Appendix F,
Ea ling Cpnd pons T afRc Signor! Warrants Analysis
Traffic signal warrants ror Existing traffic conditions are based on existing teak hour intersection ruining volumes. For Existing (2014) traffic conditions, no existing study area Intersections appear to currenity warrant a iraftic signal based on peak hour traffic ifows;see Appendix F).

Queuing Analysis
A queuir5g analysis was performed for study area intersection to assess vehicle queues along the roadways. Existing 1201±?l c~1ueulrsg analysis findings we presented :ws fatale 17.4 Petit Maur Queuing Summary for Existing ( 1v) Conditions.

As shown on Table I7•4, Peak riour Queuing Summary for Existing (2019) Conditions, no intersection turning movements ate anticipafed to experience periodic queuing issues during one at both peak hors based on the 95'. percenfile peak hour traffic flows. Worksheets for Existing (2019) conditions queuing analysis are pruvided in Appendix F,
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175
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2039
RTC -210

Responses to Comments
Ata-Carlten rganenn Mirage
Inaba t Study? Mitigated Negative Declaration
July XO 4
table I J 3. Ile secron Analysis ter basting i4dT 9} Coedilbns InMl l$on
Trak l.._.NA.

Controt
InlersecMem aproach Lszness
) _
Lora# at Service
L i T P.
a_

L T I A
Elr
h L T
J
t IWI!
IL T Li
+aekdlo'
I'M
SAT
Wirt
=A?
R
AM
AM
PM
I
Rot IL'Stl'rIl5G7 Dr.
and Dwy. I
-
FUIL(e Y'il.r4e+_r,cf
—
•—
-
-
_
—
I
2 a
Falk Svsttlyd [It.
and Dwy. 2
CSS
I
I
r!
I
i}
9,0

9.4 9,7
r
r.

Mein. I1 I tend
Fronk SarKe tla Dl.
'S
I
?
I
y
i
I
I
2 1
I

19.4 14.2

1.8.1 B
B
b
Iou .: ApaendW F.

NOWT
`#I! rrOltstl .+ntt S'9 r SvuthaOundl RS* Eastbai.elid WS* Westl?aun l GS3 s Cstra.street MOO:TS* rratFvc Signal Lett r a Thrgug;h: 17 i Sight
When n a right turn Isdestgaoted. the Mane ccs edifier Ilse striped of urtsiitie ,L. To,tyrne;ttrsi at a right fury lane there must k5e,ulrlvIent %kith L -eight luhatrrr ..ehl .Mss tai h:n.20 white t r. trxcuph Manes. • P•er the FlIgrnn!av Copoelt} Manual IaI?r Lattassi, avetor average Intarse_rrion delay and lar!e2 at tenAee ale 5ltown lot ntercec1Iont with a trattk signal oral %at/ flap control- rcr Intersections with aims street Pap contact, lase aeslay and level at teroce tar than vnY'.st Inciv1.6 gal rra.)vernarr Ire movanvent, sharing a 9Ir!gle lane) are shown..
city at Ntnetto Mrage
irk
A
V
T2-2
Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2040
RTC -211

Responses to Comments
Ritz-Caafusn litoeho Mirage
nikitl Stud'! tlltlgsted Naw'ava I?ecierAtian
July 1024
Table 17-4. Peak Hour Quelling Summery for Existing L2014) Cordltlions In action
Movement
Available
S iekky
Distance
IFore41
4'Oth Peranirli1a
QUOUOIFteeir
Aec IIub e92
AM
PM
SAT
AM
PM
SAT
Frank Sinatra Dr, and
Dwy. 1
—
—
Future Intersection
Frank Sinatra Dr, and
Dwy.2
561
2'0
0 Ip
FO
Yes
YAs
Yes
VitElfR
2X)
34 28
45 Yes
Yes
Yes
Hwy. 111 and Frank
Sinaloa Dr.
t4SL
260
66 59
82 Yes
Yes
Yes
5BR
3D0
0 D
D
Yes
Yes
yes
EIl1.
170
35 r34
43 Yes
Yes
Yes
EBTfR
270
41 74
51 Yes
Ye3i
Yes
Sourest Appendix P.

Niger
' Mninxi ri queue length to the approact, reported.

Stacking bistance is acceptable If the required stacking distance if Iess than ar equal to the 4tocruig distance provides_ An additional 1,5 Feet of stacking whir k auumect i o to prodded in the transition for turn pockets is relleded n the stacking dlslorsce shown on this table, where appicafsle 17,2 Discussion of Impacts
r�1 less -than -Significant tmN:lord wiUi Mrfigofiarr. As discussed. above in $eation 171.1.

Melhadolagiea, routiwayx In Parncha fvkvos a mutt operate at an LOS d fl Or higher. The TIA lAppeneltx F} analyzed six traffic conditions, described In detail under I7.'I. Setting.

Analysis of Existing j20I9j Traffic Conditions, E+P Traffic Conditions. EAP f20231 Traffic CondHlicns, EAPC I2a23I Traffic Conditions.. and Horizon Year 12fit4pj 'Mfti +and Wthnut Project Traffic Conditions indicate that the study area intersections are currently operating at an acceptable LOS during one or more of the peak hours,
Far EIP Traffic Conditions. EAP L2023j Traffic Conditons, EAPC i2023J Traffic Condlioni, and liortion Year 12D4DI With and 'NrfhoulProject traffic Conditions. there me no deficient intersections that require improvement because there are no week day peak hour queuing issues.

However, for E+P Traffic Conditions, EAP {7151j Traffic C•ondIlletre, and Horizon Year 1.2040J With RrajeatTraffic Condlliom, the t-hglwrµay I 1 I and Frank Sinatra Drive study intersection would operate at unacceptable weekend special event 95,,, percentile traffic flows arid therefore would require rnpioven1ents ho northbound lone movements u,nJ eastbound lane movernents at the highway 1 r I and Frank. Sinutia Drive intersection IMM-TR44; Milt -TPA -2i. The proposed project workJ heave a Ices-lhon-signllicarrl Impact will rrrillgallon incorporated The 4ngdyse for these conclusions are presented below
Project Trip C,eneralion
Trip generation represents. the Erlounr pi' tratiIc which is both attracted rQ4zncl prpdaced by a development. Determining traffic generation fora specific proposed project is therefore based City of Raid. #'I rage
177
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2041
RTC -212

Responses to Comments
RItz.Carlton Rancho Mirage
Initial Study) Mitigated Negative Declaration
July 2024
upon fosecalling the amount of traffic that is ever:led to be both attracted to and produced by the specific land uses being proposed for a given development, Weekday trip generation fates used to eslirnale protect traffic and a Summary ol the proposed project's weekday trip generation ore shown in Table 17-5. Project Trip Generation Summary - Typlcal Operations- The weekend special eVent Trip generation surnnndry is shown in noble 17-d Projiect Trip Generation Summary -Weekend Special Event. The trip generation rates are based upon data cotected by the Institute of Trorraportalion Engineers IITEI for Multifamily Housing jLovu- Risel ITTE Land Use Code 220) and Quality Restaurant PiT1= Land Use Cade P3lf land user in their published Trip Generation Mcrrual, IOth Edition. 30}17, The IfE Trip Generation Manual does not provide trio generation rotes for a venue since the use is very Ic-acilic, As such. vehicle trips are calculated based on ra max -r,um allowable oc.:^Upancv ryt O.R per p sk-wig'space, Table 17-5- Project Trip Generation Summary -Typical Operation, Land User
ITE Llf
Code
UnItsr
i AM teak How
PM Peak Harm
Wr akciay
Daily
lrr Out Tokrt
fn Out Total
Project Trip Qeneraffcn R+sfar.r;
Mul1tiamty House
rLaw-R's, e
220
176

0.I I

0.35 0.46

03.35 0-21
Ralf

7.32 Ovciry Rasfcauura+nt
91 1'SF
0itr.;

0.2.1 0373
3,23

2.57 7.1,0
6384
AM Peck How
PM Peek How
Weekday
Land Use
Quantity
, WOO
to Out Total
_1p Ovi Total
Qalily
Prajec'tTrip Generolian Summary:

Rh -Carlton
Residences
I0b
DU
11 38
49 37
22 �5
;~+9
776
Sky t sa
Restaurant
&.465
150
3 :<
5 3.6
la
5t
E556
Internal Cmpi4.rre f.5 -
- -R
-1
-3
-15
-
-27
-244
lintel
12 39
$1
ES
31 86
1,068
Source: AppenGlx F,
Notes;
' a0 = Dwelling Units TSF = Thousand Square Feet.

Tripe rveralion Sautae. Fratilute oP Transoodaticn Engineers FITE,I, Trip Generation Manual 00th Edition ROT71, Internal capture reduction cif 51 has been applied us is signiracont perfkin a the patrons would be internal to tha:wasting hole!.

Table 17.6, Project Trip Generation Surnmory - Weekend Special Event Land Use
TTE LU
Code
Units2
Arrival Peak Hour
Departure Peak Hour
hs Out Total
11+ Out Tatar
Project Trip Ganorattort Rolex:'
t.lultilamdy Housing
Lowy Rise
220
DU
Oat

0.3$

0.70 '

0.35 0.35
0,70
Guilty Restaurant
43'
T5F
63(1

4.38 10.65
_ 6.30
.6.35-
t0.68
Venue
Nat Avoikib e
LIB ai Broths,?O a
178
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Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2042
RTC -213

Responses to Comments
RItz.Carlton Rancho Mirage
initial Study) Mitigated Negative Declaration
JuIle 2024
Land tlsie
Quantity
gni
Arrived Pock Hour
Departure Peak
Hour
In Cul roiai
trr I Out Told
Project Trip O en erotic. n SsrITT rnwy:

Prty.Cartton Residences

1.06 Ted
17 .37
7a
37 37
74 Si y Nie. sa k@staurant

6.9166
5 F
6 31
75 44
3I
75 Internal Capturef 0`%-'
-22
-16
8 -22
-In
.J
s,+srnUd, 1 381 Spaces
295
10 5
10 I 29,5
3:`
Total
354
a !
416
6?
347
4I S
Source. Appendix F.

Notes:
' TrltrGsrrtraPion Souroei rristrtute of Transtaarsailo , Engineers jiTEJ, Trip Generaton Manual, into Ealr ti {20171, d17 = Dwelling Units; TSF = thousand Square Feat
Internal capture reduction of 6 hos been applied as a slpnNkant pcdion of the patrons would be intsrral to the gusting hater
Vehicle trips are calculated teased cc a maximr+um nsoim:dote occupancy of 0.8 per parking space.

A5 chown on Tonle 17-5, Prole -of Trip Generation Summon' - Typical Operations, the project is anticipated to generale a na1 total or 1,068° taro -ends per day, -51 AM peak hour trips and 86 PM perk hour trips,
It should be noted that the venue WA generate (rips outside the weekday AM and PM peak hours. As'shown on Table 17-6, Project Trip Generation Summary - Weekend Special Event the proposed project 'special event' is anticipated to generate a not total of 416 weekend peck hour trips
Project Trip Distribution
the trip distributions have been developed based on past work experience In the vicinity of the project site and relined to retlecl the roadway network and the surrounding uses in the vicinity of the project as they exist today- Trip distribution patterns for the proposed project are .shown in Appendix F.

Modal Split
r tthough the use or public transit, walking, and/or bicycling have the potential to reduce project -rotated tralOe, such reductions navc naI been fak0n it.ta ransid@rations In this traffic shxty an order to provide a conservative analysis of the proposed project's potential to contribute to clreulalion system deficiencies.

TripAssignment
The assignment of traffic from the proposed project area to the adjoining roadway system is based upon the proposed project frrp generation, trip distribution, and the arterial highway and local street system improvements that would be in place by the time of initial o cepancy at the proposed project. Rased on the identified project traffic generation and trip dstrFtautIan patterns. proposed project weekday ADT. weekday AM peak hour, and weekday PM peal:
hour peak hour intersection turning movement volumes are shown In Appendix F. Proposed LIB ai Rrncha ?Ova
179
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Corti

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2043
RTC -214

Responses to Comments
Rltz.Carl'ten Rancho Mirase
initial Study) Mitigated Negative Declaration
July 2024
project (Specjal Even1M weekend arrival and departure peak hour intersection turning movement vokrmer are also shown in Appendix F
Cunutafiva Growth Trs:ti:c
Ambient Growth Rafe
Future year traffic forecasts have been based upon background lambientj growth or 8.24 percent 42 percent per year over I year far EAP and EAPC traffic conditions. The ambient growth factor it intended to approximate regional traffic growth. This ambient growth rate is added to existing traffic volumes to account for area -wide growth not reflected by cumulative development projects.. Ambient growth has been added 10 dolly and peak hour traffic, volumes an surrounding ioadwcys. in addition to traffic generated ay the development of Ordure projects that have been approved but not yet built r3ndfor Ior which development applications have been tiled and are under consideration by governing agencies.. for EAPC traffic conditions.

Cunautoisve DevefapmenfTraffic
Calilornia Environmental Quality Act ICEQAJ guidelines require that other reasonably foreseeable development projects which are eithe►approved or bung processed concurrently rn the study area also be secluded as part at a cumulative anolyvs scanarra, A cumulative project list was developed For the purposes of this analysis through consultation with planning and engineeringstaff horn the City at Poncho Mirage.

Appendix F contains the cumulative development location map, and a summary of cumulative development projects and their proposed land uses are shown_ If applicable, the traffic generated by individual curinukrtive projects was manually added 10 the Opening Year Cumulative forecasts to ensure that traffic generated by the listed cumubotive development p -rejects in Appendix F are reflected as part of the background traffic. Trip generation roles used to estimate cumulative development project traffic and a summary of the cumulative development project's weekday trip generation ore shown in Table 17-7, Cumulative Development Project rep Generation Summary,
LIB vt Rinclrc ?1lr e
180
T2-2
Goth

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2044
RTC -215

Responses to Comments
Rig -Carlton Rancho Mirage
Inti,al Study? Mitigated Negative Declaration
July 8D24
Table 17-7. Cumutaive Dexelapmenl PTo ietf Tip Generrslinn luminary Latta Vim
NI t0
code
Onlb,
01, Peak Haut
PM teat Hour
'Wlftrelcdmy,
Daily
SA1`tPaak 1'1DI*
in Out G Toki
rrt OW I ToMI
1n 1 (Zvi Tolfar
Prolecd Trip Gerrerr an .Raffia
Single-sc3riiy Defoehedl
Plouwlg
210
DV
I., 19
0 S
0,74
062
037
4,94
9,44

0.50 043
0,93
Holnl
3W
Pcxern

0.28 0,49
1147
031
029

0.0 8,36
I a40i
132
1 0.72
S,hopor2Cente•
820
TSF
058

0.36 0,94

1.83 I 1,98

3.81 37.75

2.34 215

4.50 Land L6tia
Quantity
L1rWi1
AM
Peak Haw
PM bait.8aur
woikday
Wily
SM
Peek Kew
j
1n
Toloi
1n OW
tidal
In _
Out
Telco
I>rojecl
Dip G eratrallon SurivnaJy
_
Mr€iclo'aut.-5FDU(7Sf.
(Wit)
:1a,
a
3[
9 ea
5 a
horizon Pacillc Rancho Cave JMSA Concuiting
CRrrmercic
24,r1}f7
VA
I 2
19 :t= 40
7,
7'_+5
477
a3
9,
Hotel
II0
1;'ooms
28 I9
49 91 I 29
alb
836
43 32
72 SFDLI
35 00
t.
19 25
22 13
35 332
18 15
33 Total
4A
45 91
94 112
172
1,924

1.05 90
195
1[eet !Ct - *DU Dt
a
1 I
15 -
19 190
10 •6
14 1obd
52 +L1
113
108 92
2t1>x
UN
120
103
223
Sarrec Ieppmelk F.

Du °waling unlh: IV. tMwl4+ ttl5gtrra NM+
Ti p. r•urletelkn SW** Ir41Mu+o er1 Fnalromi n.iikcipagaratthania115► wool 'p'd117M, CI:r of #eerie Mum*
181
T2-2
Conic

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2045
RTC -216

Responses to Comments
Ritst—C rte. RklAcha Mirage
Initial Study,/ Mitigated Neg7htiwo DOC.1. tion
July 21324
Neer -Term Traffic Forecasts
The 'buildup' approach com#i,es existing traffic eot,nts with o background ambient growth factor to forecast EAP (20231 crud EAPC I20231 trallic conditions An ambient growth laator al 2' per year accounts for background {urea -wide) ticattic increases that occur over time up to the year 2023 from the year 2079 'compounded 2% per year growth over a 4 -year period], Proposed project traffic is added to assess bath forecast EA? (2023} and EAPC (2023) traffic conditions. TioHlc volumes generated by cumulative development projects are nal Included in the EAP 12023] traffic conditions.

The nom -term traffic analysts Includes the following traffic conditions, with the various !lath': components:
• EAP (2D23
Existing 2019 volumes
Ammbient growth traffic 38.24"%
• EAPC r2O23J
Existing 2019 volumes
Ambient growth traffic ]5.24%)
Cumulative DevelopmentTratlic
Typical Weekcfwy orSoturdwy Special Event Project
T2-2
Cont
The average growth rate is estimated at approximately tely 3.44%. compounded annually be Iween Existing (20f9J and EAPC J2©23J Irafffc cpnditk ns. The annual growth rate at each individual intersection is nis1 lower than 3,244E compounded annually to as high as 3:d3% compounded annually over the same time p9ilod. Therefore, the annual. growth pale utilrted far the purposes of thls analysis would appear to conservatively approximate the anticipated regional growth in traffic volumes in the City of Rancho Mirage tor EAPC (2023 traffic conditions, especially when considered along with the addition of project-tetaJed traffic.

Horizon Year (2040) Volume Development
Troafinc projections for Horizon Year (2{740) without proposed project conditions were derived from the Riverside Transportation Analysis Mode! IPivT,AM) using accepted Procedures for model lot®tast refinement and srnoafhing for study area Irrtersecfaons located within the County of Riverside. The version of the RivTAM used for traffic reflects bite local Input in the adopted 20I SCAG RIP within the COunhy of Piverside_
The traffic forecasts reflect the rarer -wide growth anticipated between Existing (2019] conditions an.d Horizon Year (2040) traffic conditions_ In most instances the baffle model zone structure 15 not designed t9 provide accurate fuming rnowernents along arterial roadway's unless refinement and reasonableness chectirwg is perftssmed. therefore, ttie Horizon Year 204OJ peak hour lnrecasis were refined using the model derived long range larec,asts, base Nokia -liar -9 year model forecasts, along witty existing peak hour fraffk count data collected at each analysis Iocalion In December 2019, The Riv1AM has a base (vaWar and year of 2012 and City al' Rancho l•lIra9
182

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2046
RTC -217

Responses to Comments
Ritz•Cartton Rancho Mirage
Initial Studyli Mitigated Negative Declaration
July 2p.24
n horizon (lulure rorecastj year of 20.40. the difference in model volumes (2b-10-2012) defines the growth in traffic over the 2E -year period,
the refined Mature peak hour approach and departure volumes obtained from the model output dota are then entered Into a spreadsheet program consistent with the National Cooperative Highway Research Program RiCHRP Report 255J, along with initial estimates of turning movement proportions. A linear programming algorithm R used to calculate individual turning movements which match the known directional roadway segment forecast volumes computed in the previous step. This prograrn computes a likely set of intersection turning movements from Intersection approach counts and the Initial tuning proportions from each approach leg.

Typically, the model growth is prorated and is subsegtaenffy+ added to the tistiryg (baser validation) traffic volumes to represent Horizon Year ¶route conditions. In on eIIorf to conduct a avn,ervative analysis. reductions to IrofFic forecasts from either Existing or Opening Year Cumulative #retitle conditions were not assumed as part of Mk analysis, As such, in conjunction with the addition of cumulative projects that are not oansi:st ni with the General Plan, additional growth has also been applied an a movement -by -movement basis, where applicable, to estimate reasonable Horizon Year (2040) forecasts.. Horizon Year je20401 turning volumes were compared to EAPC (2i22J volumes In order to ensure n mrxrlmurn growth OS a part of the refinement process. The minimum growth includes any additional growth between EAPC f20231 and Horizon Year 12044 traffic conditions that is not accounted for by the traffic generated by cumulative development projects and ambient growth rates assumed between Existing (2019) and EAPC (2.0231 conditions. Arjtastments have not been made to study area intersections Ina# may be affected by new future re?adwcsy connections. where travel patterns would likely get affected and forecasts may poterviially decrease from the EAPC conditions. Fuluie esfimoied peak hour tratflc data wo≤ used far new Inferseclions and intersections with an anticipated change in travel patterns to further refine the Horizon Year (200 peakhour forecasts.

The More Horton Yegr [i,240} Vtithout Project peak hour turning movements were then reviewed by Urban Crossroads, Inc. for seasonableness) and in some cases, were adjusted to achieve Raw conservation, reasonable growwth, and reosgngble diversion between parallel routes. Flow caruervailon checks ensure Ihnt traffic now between two closely spaced intersections, such as two ardacent driveway locations, is verified in order to make certain that vehicles leaving one Intersections are entering the adjacent Intersection and that there is no unexplained loss +al vehicles, The result Of this traffic torecasfing procedure is a Series of #rattle voiut7es which are uitobs8for!rattle operations analyse. Fast•psocessingworksheets forHonzan Year (24401 wlthaul Project hdffle conditions ore provided in Appendix F.

E+P'talc Conditions
This section discusses the traffic forecasts for Exerting Plus Project (ۥP) traffic conditions and the resulting peak hour Intersection operations, traffic signal warrant, and queuing analyses. city trf arentha r+.pc
183
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Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2047
RTC -218

Responses to Comments
RItz•C,artton Rancho Mirage
Initia4 Study) Mitigated Negative Declaration
July 2p2A
Roadway Irnprovernents
The Zane configurations and traffic controls assumed to be In place for E+P conditions are consistent with those shown previously on Exhibit 3-1 in Appendix. F. with the exception of the following-
► Project driveways and those facaities assurna d to be constructed by the proposed project to faeovide site access are also assumed lo 6e it place for E+P conditions only (e.g. intersection and roadway improvements at the Project's frontage and drivewaysJ.

E+P Traffic Volume Forecosts
This scenario includes Existing traffic volumes plays. projecttrrarfic. E+P weekday ADT, weekday AM and weekdrav POO peak hour Intersection turning movement volumes are shown on Appendix F. Weekend special event peak hour Intersection turning movement volumes are shown it Appendix F. as well
E+P Inlerseeflan °pain:Moras Analysts
E+P peak hour trarl-rc operalians have been evaluated for the study men intersections based on the analysis methodologie.s presented in Section 7, .1 Methodologies of this Initial Study.

The Intersection analysis IEsuIrs are summarized In Table I7 -d, Infonectron Analysis for E+P Conditions, which indicate that there are no intersections operating at an unacceptable LOS with the addition or Project traffic. The Intersection operations anotysis worksheets foi E+P traffic csrnr rtions are Included in Appendix F.

CFry of Rrrltha'We V.
184
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Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2048
RTC -219

Responses to Comments
A
lbta-[arrtern Honcho %rage
grand Study!' Mlbgated Negative Declaration
Jury kO2
Table Tf-R.lnlerseellaa Anolyiia lee .FCondrlittni
Y
Inferyecliarr
teCPllc
Canlrall
6dslin (2013)
;`.r
__
i
+ I
SAT
ILrrfd of .n
Weekday
ks
Weekday Weekday
AM
larla_?Akes4
AM
tethif aT SONIC*
Saturday
PM Ars Dep.

WeekderL]
SAT
AM PM 19
AM1 PM
PM
An
Dip,
Ur. and Dy y. 1
Praisers Irrlerseetoorr
L!..5

8.-5
&.a
I03
[i
7 1
_
Frank Sinatra
Or. sand Nee. 2
CSS

4.0 4.4

4.7 A
A
A

9.2 10,2

05.5 15.8
@•
C
C
deo.01I and
Frank Snatra
TS
I4.9

19.2 I•B,1
B
E
Et

2.3.6 21v)

23.0 21.1
C
C
C
C
Seam Appeedro F.

MAWR
• PG' fhR Nl wQy' CopaaTy PAmeual Rtn Ee3hon1, a^rvrol ar.Prtige irit.r.taction ref and elyei d service we th wn kr Ininroecrlpn} with a traffic s1Arralo t al w iy ft+7p catir€il. For In ',medians with alao sheet slap co lrl, Nhe € eirno and WI d service !r, the wvrssr inciviclual rrvt•mrnenl movement] Oaring a ring a Isanel are shown
• CSS = Cross -Ape Stag: TS =Traffic Sigmal.

Arr = Arrival Peak Har r: Dep = Departure Peak Has,
Cm Romero Virago
1 B5
T2-2
Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2049
RTC -220

Responses to Comments
Ritz-Caytton Rxot ha Mirage
Initial Study/ MItigated Negutiwo DOtJv tion
July 21324
E--PTrafrc Signal Warrants Analysis
Traffic sspnal warrants for ErP traffic conditions are based on planning level [ACCT' and pe-ak riour intersection vokrmes. For E+P fialt c conditions, no study area intersections are anticipated to warrant traffic signal (Appendix F}.

E;P Queuing Analysis
A queuing -analysis was parfarrnad for study area interaecflsnu to assess vehicle queues that may potentially Impact peal: hour operations. Queuing analysis findings are presented in Table 17-9, Peak Hour Queuing Summary for E+P Conditions. It is important to note that lengths are consistent with the measured distance between the intersection and the end of the storage area.

City or Raid. llrage
T2-2
Goth
186

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2050
RTC -221

Responses to Comments
Rit -€ s1ton Rancho Mirage
Mine' Srtwdt
Jury 2024
ruble l 7-V Peak Rout aerldna Svmngty F+FCondition'
IIILMIMMILeliers
1 Italic
Contrail
kidding (2044)
faelse (sec4=
_Oval of &mice
_D*IcTel L
Leval of Service
Weekday
Wee -Way
Saturday
Weei:dey Saturday
AM
PM A,rr,
0e161
AM PM
5Af
_eekei
AM PM
SAT
AM
PM
Art,
Dep.'
flank Se .i L, La,;i
Davy. I
_,
Future ia..ctton2
85 8.5

43.6 I0,3
A
JF
M
Frank SinatraDr. and
Dwy. 2
CU
9,0

9.4 9,7
A
A
A

9.2 102
15,5

15.8 A
5 C
C
3 Hwy, I I I andFrsrik
Sinatra Or.

T:

19.4 I.9-2
101
Pi
a
B

20.6 21.0
2;)
21 C
C
Irdertacfion
Moveine•n1
lsu dlr le
A Aleinlp
Distance
(feel)
Wiling
(2O14)
*r
4Sry Percentile
Uteri)*yr
ere4
Acceetobieps
954r Percengte avever
Neel?
Ageet bMP
WYaekday
Weakd
Waakdtsr Saturday
iYeekelay
Setwel y
AM PM
SAT
AM PM
SAT
AM
PM
Are
•
AM
PM
Are
f De a
+1aYk
Snaha Dr
end Dwy1
.:3L.i
ZJJ
Future +rerersecitron
1 Q
Yei
Yes
Yes
I TLS
NVBi'R
Ial
44 'Oft
Yes
Yes
Yes.

Fro*
Snaha Di
and tlwy. 2
MI_
220
it
Yes
Yes
vas
0 14
0 ;o
Yee
VC.,
Yes
Yes
WBJR
2 34
45 Yes
Yes
Yes
37 34
45 37
Yas
Yes
Yes
YeS
'Hwy.. 1 1 1
and Frank
Sinatra Or
hi13L
260
66 59
82 Yes
Yes
Yes
72 1012
ME?
118
Yes
Yes
Na
Yes
559
300
0 0
0 Yes
Yes
Yes
0 0
tY
4 Yes
Yes
Ye
Yes
I70
15 63
43 Yes
Yes
11 El
51 70
67 Yes
Yes
Yes
fio
MA
270
41 74
51 Yes
Yes
Yes
15s
12 101
3₹S
Yes
Yes
Yes
l Na
Saws: Ariprfgd F
Isetea,
Per t►ea sfkyl CapaG1N MaMuol Idrh EVrIrld0, ava+sii owraga.. nsanecnan Bator' and saves at iervler ore shown, 1O freerfr.,etgnl YAM a 17011--O tltlnat # qr vxry $F(.4.mated- fee In rar10C1tant 'M141 CVOs sIT 1 f1ep “Ani y. rife tlWtiYcmd W * esr service la the wore inavld.Ipr i►i A0O-01? io moVOrrle-M1n Oaring a singe lane' are shown
Cm cr Um*, Mega
187
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Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2051
RTC -222

Responses to Comments
Ritz -Triton Pantile Mirage
InNal Stludyr
July 21324
CSS = doss -steel Stop; TS = Traffic Signal,
Arr = Arrival Peak Jour, Dep = Departure Peak Hour_
F5rhpercenrlevokoreeart sa panty: queue rnoyto&ver.Queue shown hmaxirnurnalter two cycles.

Stacking Distance acceptable if the required stacking distance it less than or equal to the stacking cistance provided: An oddIifonal IS feet of stacking winch is assumed to be provided In the transition tar turnpockets is reflected In the stocking distance shown on tl es table, winere appEc able.

As shown on Table 17-9, Peck Hour Queuing Summary for E*P Conditions, an -d consistent with ExIsiing (2019) Carr illpns• there are no potential queuing Issues anhIcipaied daring the weekci y pecii 955th percentile traffic flows for E+P trr_ifiir .anciiiion3. t-lowever the lgllowing movements ore anticipated to exceed the available storage lengths hosed an the week end special event 459h percentile peak hour traffic glow;
• Iiwy_ 1 1 I end Frank Sinatra Dr. (#3) - hIBL movement • liwy_ 1 I I and Frank Sinatra Dr. f #31 - ESL movement W'ork€tieets tar EtP conditions queuing analysis are provided irk Appendix F No improvement strategies have been fin commended far study area Intersections cis !here no dsflttent Intersections for E+P traffic conditions.. As shown previously on Table 17-e, Ihere fire no weekday peak hour queuing iisaies anticipated at the study area Intersections for E+P traffic conditions.

However, It is recommended that the following irnprovennants be Irnplernented lo accomrnadale E+P weekend spatial event 43^ percentile tiafflc flows i:MM-TRA• I, MM-TRA-2I.

Therefore, Impacts would be less than slgnigcanl wilts 'mitigation incorporated.

EAP (2023) Trek Conditions
This section discusses the methods used to develop Exist-iyg plus Ambient Growth Flub Project (EAP) (2x323( traffic conditions and the resulting peak hour intersection operations„ traffic signal warrant. and queuing analyse£,
Roadway Improvements
The lane configurations and traffic controls iassurned to be in Place for EAP conditions are consistent widh those shown it Appendix F. with the exception al the following, • Prgjeti driveways and those facilities assumed to Lie constructed by the proposed project T© prove gte acc=ess ore also asicsrned TO be in place for f P conditions only (e.g., intersection and roadway improyements at the Project's frontage and driveways).

EAP (20230 Tralfkc Vellums For.cassfs
to account tor background traffic growth, an ambient growth from Existing conditions of

8.24% (2 percent per year over 4 years. compounded unnuarly) is included for EAP traffic conditions_ Cumulative development projects are not Included as part of the EAP analysis_ EAP weekday ADT, weekday AM. and weekday PM peak hour fnterse.clion turning movement volumes are shown In Appendix F. Weekend spacial event peak hour Intersection turning movement volumes are also shown in Appendix F.

City al' Raidn llrage
188
T2=2
Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2052
RTC -223

Responses to Comments
RItz•C,ariton Rancho Mirage
lnitta4 Study) Mitigated Negative Declaration
July 2p2A
EAP (2023) Intersection Operations Analysis
EAP peak hour traffic operoflons have been evaluated foe the study area intersections based an the analysis methodologies presented In Section 17.1.1, Methodologies, of this initial Study, the intersection analysis results are summarized In Table 17•IO. Inlersectlan Analyst? for EAP (zp2.3J anclittans, which indicate Ihot there are no iniersecfiam operating Of an unacceptable LOS with the addition of ambient growth and proposed project liaffic the intbsseclion operations analysis wort, sheets far EAP traffic condition are included in Appendix F EAP (2023) Traffic &gnat Warrants Analysis
traffic signal warrants for EAP traffic conditions are based on planning level l'A©UJ and peat hour intersection volumes. Fos EAP traffic conditions, rue study area intersections are sanficipated to warrant traffic signal iAppendlx Fl.

EAP (2423) Queuing Analysis
A queuing analysis was performed far study area intersecrions that may potentially Impact peck 1rour operatianr, Queuing analysts findings are preseinted n Table I7 -1I, it Is important to note that lengths are consistent with the measured distance between the intersection and the end of the st arage oleo. As shown an Table 17-11 c nd consistent with Existing condltiarm there art no potential queuing issues onticipatad during Phe peak 95t' percentile traffic flaws for EAP f2O23J trotftc candliicns. However, the foltawing movements are anticipated to exceed the ayallcble.storage- lengitrs based on the weekend special event 95s. percentile peak hour traffic HOW'
• tiwy_ 1 I I and Frank Sinatra Dr. f#31 - 1vBL moverneni • Hwy. 1 1 I and Frank Sinatra Dr. f #3l - EBL movement 'Norksheefs for EAP f2r}23) conditions aueutng analysis are provided In Appendix F.

CftvvfRancho 'We roe
199
T2=2
Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2053
RTC -224

Responses to Comments
Ri12-Cnsrltan Rancrsu Mrri gc
Initial Sturdy
duty 2024
Tobin 17-10_ Inlerseclian Analysis far EAP (O2(2023)Candhlions •
lnhnselian
Indic
Coning'
Ws11ng (:7011}
M P (2023}
Delay (secs)
Weekday
SAT
Lore? of Sinks
Weekday
SAT
Delay
rec4
Segurday
Loral of Seance
Weekday
Weekday
Sonetl4y
AM PM
Ailful PM
AM
PM
A.rr'
De,�
AM
PM
MT'
Dep.

I
Fdr'i,. S:,, d.1,,,
Dr. and Nor I
ri:
fukn ddsasaclan
ij6
t, 5
d 7
IC7. 3
A
A
A
lj
2 Fr©re. Sneers
Dr, tend Day. 2
CSS

9.0 94

9.2 A
A
A

9.2 10.3
I 5.rl

16.1 A
B
C
C
3 FMy, 11 G arc"
Fran Sects Dr,
TS
19,9

19.2 I a I
R
!;
B
21,3
2a8

2.4, I

28.3 C
C C C
Swarm Appasntlis F.

NOW.

Pat 1Iti I4{Sr'ewav Capacity Manual IAhi Fdlrc I, a m.CII ttwragrr IrprisCVen dolly and bvW r l usrrkr #e stkwan iqr Inlaeseenes4 *Tr 0 Wale pgnhl p Os. r qy dcp ror, kc>1. rah torn eclkx,r with 'Jars .kui.1 utC p or,nied. IMO W' y ur'ri v.., r!f swvIte 101 The wrxll innk.40g1 rna•Mryrenr {tfr irtavarr.a,afi sh ring, rh,wbIono1arashv+..,
CSS = CTau sirwor S'w, TS = 7rarrs Slgr,dl
AA. = Art Fea► Mu. - Clap = Depatlhj y Pea. l4O...

CIS) at Ronda Hine
19D
T2-2
Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2054
RTC -225

Responses to Comments
Ftitr-CCmen Rancho Mirage
ksitial Study
July ZI]z4
Table 17- IS_ Peak HOW Quatrain(' Summery ler UP (4023) continues ItsEsarJecNati
IlAovisesent
Mailable
Slacking
Dbl.

Veen
&Whig=
EA P i22121)
95"Perc.nde
Guava (Teets'
Acceptable',
'F9rPerc•nfAe+CtueLW
(Feel.'
AccepuMabi.?
Weekday
SAT
WeekdaY
SAT
Weekday
Sctiu day
Weekday SOW
AM PM
AM PM
AM
PM
A "
Daps
AM
PM An'
Dap°
Flank
Sisaira Di.
ono Dww. I
S L L
20D
Future interaecian
0 15
27 ?
Yes
I Ye Yes
r es
J.' 4L i R
7 A4
44 48
46 Yes
Yt. Ye,
?e,
Rani..
irOhciDi
arm Dwy.2
SH I.
220
0 10
10 Yes
Yes
Yes.
10 22
0 33
Yea
Yes Yes
Yes
VQ'$L J R
2X
34 28
45 Yes
Yes
Yes
2 32
S4
42 Yes
Yes fes
Yes
Hwy. II t
and Frank
SnahcDI '
t401
26b
tip
59 62
Yes
Yes
Yes
75 1M-
376-
I
Ys _.. Nn
Yea
SO R
303
0 0
0 Yes
Yes
Yes
0 0
39 O
Yes , _ _ Yes
Ye,
15111.
170
35 50
43 Yet I
Yei
Yes_
53 74
7t)
238
Ye, re; 's es
Na
E TI k
n
4l
7a
S1
Yes
Yes
Yes
62 96
IQe
330
Yes . ras
Na
Soarer. Appendix F.

Notes
ir5r percentile volume a teary. capacity, queue maw be k rper Queue shown Is rnadmum alto twa cs cffiN, Stacking'Distance is o ceptable II fie rechscea Tice trip d',stance is less than or equal la the mocking dcstance pros -homed, An addlhanat 15 lee? al `tacking. which Is assumed to be p+ca load In the'iransIIiae tar turn packets Is reflected In the slacking distance shown on this tubie. whets apeecable.

Ar = Arrival Peak Flex Dep = Depariske Peak kip r.

City of liirrio Wage
191
T2-2
Coat

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2055
RTC -226

Responses to Comments
RIr$-Cantor Rancho tillage
Inldrl Study
July 2024
No improvement strategies have been recommended far study area intersections as there no deliicierst intersections for EAP 120231 traffic tarsditlore. As shown previously on Table 17-11, there ore no weekday peak hour queuing issues anticipated at the .study area intersections for EAP {2023♦ traffic conditions. However. II is recommended that the folowirg improvements be implemented to accommodate EAP 120231 weekend special event 95T' percentile traffic flows {AIJYL-ittA-t; MM-iRA-2), Therefore, Impacts would be less than ligntlicanl with mitigation Incarpornted
EAPC (2Q23) Traffic Candilians
This section discusses the methods used to develop Existing Pius Ambient Growth Plus Cumulative Projects Plus Project MARC' f202 -3i traffic conditions and the resulting peak hour Intersection operations, traffic signal warrant. and queuing analyses.

Rocrrtway Impraven-ranks
the lane conliguialians and trafliccorslrols assumed to be in place for EAPC conditions are consistent with those shown previously on Exhibit 3-I in Appendix f. with the exception of the following_
• Project driveways and those facirrh-eaassumed to be constructed by the proposed project to provide site access are also assumed to be in place tot EAPC conditions only [e.g. intersection and roadway improvements at the proposed project's frontage and driveways).
• Driveways and those facilities assumed to be constructed by cumulative developments to provide site access are also assumed to be In place for EAPC conditions only leg., intersection and roadway improvements along the cumulative development's Frontages and driveways),
EAPC (2Q23) Trafie Volume Forecasts
to account for background traffic growth, other known cumulative development projects in the study area were Included in addition to an ambient growth from Existing conditions of t1-24%- f2 percent per year over 4 Years, compounded annually) for EAPC traffic conditions. APC weekday Ail, weekday AM, and weekday PM peak hour intersection fuming movement volumes, as well as weekend peak hour intersection turning movement volumes are shown in Appendix P.

EAPC (2023) intersection Operatian3 Analysis
EA PC peak hour traffic operations have been evaluated for the study area intersections bused on the analysis methodologies presented In Section 17.1.1. Methodologies, of this Initial Study.

The intersection analysis results are summarized in Table 17-12 Intersection Analysis far EACP I2©23) Conditions, which indicate that there are no intersections Operating at an unacceptable Las with the addition of ambient growth. cumulative projects, and proposed project traffic.

The intersection operations analysis worksheets for EAPC traffic conditions is included in.

Appendix F.

City at Rancho #urge
192
T2-2
Corit

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2056
RTC -227

Responses to Comments
n
nits- arlton poncho Mirage
Niri..l 5ltwdt
Jury ?034
table, l T.! * Intenedlan AutalyafF bar E4C11(2023) Condlenoti /
Inier>reallnn
Tco1Bc
Core:AOO
Mt)
€APC
20231
floPayr('sue
Weekday
SA!.
boyaror.Senlca
Weekday
_ 17lelanY sicst_.
for
1 of
I
Servile*
$aharelay
SAT
Week* y
Saft+refay
Weekday
AM PM
AM PM
AM
PM
Ark
t)eip'
AM PM
Art,
Dept
I
...al L Si. ,Ilia ,.
crxdD]wy. I
'
"-inure dnletercIdaii

6.6 $6
&7
IU.1
..

A
A
_
Frank Sutra 13a.

Croy. 2
CSS

9.0 9.4

9.7 A
A
A
93 tO.4

16.9 163
A
BC
C
3 krety. l 'I I and
Frank Sinatra 1k.

TS

19.4 1.9.2
1831
B
B

21.7 213

24.9 325
C
CC
C
fnof p ALypndla F
■ate►
Per lse Mlphvwey Capacity Manual 16141 EdMIan1. overall average Inlenatfron driaf end Wrol of ser+Arr en trsavxn let lalmi cKant weTh a traffic stand as QM way afnp Conical. Fa Inrersecllars wll, van drool stop, canlral. rho d.laY and le -eel gl service rat fie wait Inalvkkal movem nt to movements IhatIri a angle lone* are shown.
• CB = Cram -steel Stop; TS = Tra&tic
Art = Arrival Peak Four. Dep = Decctriunar Peak Haw_
Cm ci Rtntna Virago
193
T2-2
Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2057
RTC -228

Responses to Comments
Ritz shoos Rancho 7rtlfage
In Nat stay
July 2E324
EAPC (2023) Traffic Signal, Warrants Analysis
Traffic signal warrants for EAPC traffic conds1ions are based on planning level (ANTI and pe-a*. hour intersection volumes. For EAPC traffic condtions, no study area Intersections are anticipated to warrant a traffic signal fAppendix FJ,
EAPC (2(123) Queuing Analyses
A queuing analysis was pert rmed for study area intersections that may paters1Ici fy Impact peak hour Qperafions. Queuing anatysii findings Vie presented in Tablet7-i3, Peak Hour Queuing Summary for EAPC ma) Conditions. It is important to note that Lengths are consistent with 'he measured distance between the intersection and the end at the storage saes. As shown on Tole 17-13, Peak Hour Queuing Summary for EAPC 12231 Conditions. and consistent with Existing 12019] conditions. there are no potential queuing issues anticipated during the peak weekday 95' percentile traffic lows for EAPC I223J traffic conditions, Howeverthe fallawfng movements ore anticrpared to exceed the avairable itarage lengths bared an the weekend special event 95" percent e peak hoar traffic flaw; • Hwy -11 I rand Frank Sinatra br. I#aJ NEIL movement
▪ Hwy_ 1 1 I and Frank Sinatra Of. I*3j - EEL movement
Worksheets tor EAPC (2023) conditions queuing analysis ore provided In Appendix F.

City or R idn llrage
T2=2
Cont
194

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2058
RTC -229

Responses to Comments
0 P it - rrilen RATIChc Wear
Initial Stt Ay
iuty ZrJZ4
'fables 1F-13. Meek flour ueu i alluumsha kit 23}Co dR inrnr Inlerseci1on
lwActy rrrri
Mailable 950.

Stacking
Diitt.
(feet)
Wog
(11191
_ EAPC (2023}
Percentile
Queue (*eel' 1
Accopicistell
95'1 Percent*Queue
(►,vetjr
Acceptable?,
Weekday
Scfurday
Weekday
SAT
Weaieday
SAT
Weekday '
$adudap
AM PM
AM PM
AM
PM
Atrr
Dip,
AM
PM
An
Dep"
Frank SinaiCI Dr,
and Dwy. 1
SdL r F.
410
future intersection
9 0
3J
0 Yei
Yes
Yes
Y
W BL / 11
100
9R
4S
43 ₹r1
Yet
Yen
Yes
was
Filet Sir .•slau Dr.
and Dory. 2
SBL
220
4 10
10 Yes
Yes
Yes
0 0
21 34
Yes
Yes
Yes
Yes
W It r R
2130
34 25
I.5
Yes
Yes
Yes
xg
29 4D
4 Yes
Yes
Yes
Yes
Hwy. 11 1 end
Frank S1mi:ti s Dr.

NAL
260
r+6
92 j
Yes
Yes
Yen
77 113
3370
131
Yes
Yes
1110
Yes
SBR
300
6 0
0'
Yes
Yes
Yes•
a
t1
©
0 Yes
Yes
Yes
Yes
Ell
170
35 tit?
43 Yes
Yes
Yes•
57 )l
az
251=
Yes
Yes
Yes
No
EBT/ R
270
41 74
51 '
Yes
Yes
Yes
64 94
109
336
Yes
Yes
Yes
No
tom= Appendix F.

SW parcel -Mlle vanilla eacands comertt . clues)* rraii' be Innuer- Guava sti vat IS t ri xItnum atter 1wa Cydts. .511=trtg Dakarce Is acuirpt bks It The requaed rioCklnq distun e a km than or vgu l o the shaaka g datums, prowled. An oddllnand l IS feet stacilono walk}* im am rued la lam provided In That iranslitan kr turn pccia h b is llscied In the daCtintijdok17100 s1•varsrl Cat Iteis table. whale naplCabfe.

Ar. = FaSh Okn r: OUP = R}wpclri.re. Bank Elms.

City of Waretq rAcpr
19S
T2-2
Coat

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2059
RTC -230

Responses to Comments
Ritz-Cretten Rancho MIfage
initial Study
July 2O24
No improvement strategies have been recommended for study area intersections as there no deficient intersections for EAPC t2o23J traffic conditions_ As shown previously on Table I1-13.

Peak Hour Queuing Summary for EAPC (2023) Conditions, there ore no weekday peatyhour queuing Issues anticipated at the study WOO intersections for EAPC f22023I traffic candlteons.

However, if is recommended that the totlowing improvements be implemented to occommodale EAPC J2023) weekend special event ?t ptrr t nfi:e Iiudic flows il4llal-TitA-1- MM-TRirk-2:1 therefore, impacts woi rid be less than sianihcant with rnitigaiN4n incorporated Horizon Year (With and Without Project) (2040) Traffic Analysis Phis section discusses the methods used to develop Horizon Year Without and With Project and the rewiring intersection operations. traffic signal warrants, anal queuing an-alysis..

Re•acJ way Improvements
The lane cenftguretlons and traffic controls assumed to be notate for Horizon Year conditions are consistent with those shown previously on Exhibit 3-1 in Appendix F, with the exception ol the following:
▪ Project driveways and those raci!ities assumed to be construtred by the proposed paled to provide silt access ale also assumed to be in place for Horizon Year With Project conditions only fe_g., Intersection and roadway Improvements at the Project's frontage and driveways),
• Driveways and those facilities assumed to be constructed by cumulative developments to provide site access ore also assumed to be In place for Horizon Year conditions only )e.g., intersection and roadway improvements along the cumulative development's frontages and driveways).

Hari;an Year Without Project Traffic Volume Ferecost$
This scenario includes the refined post -process volumes obtained tram the litivIAM )see Appends F for a detailed discussion on the post -processing mefhodologyi, The weekday AMT. weekday AM, and weekday PM, peal: hour volumes which can be expected for Horizon Year )2040) Without Project traffic conditions. as well as the weekend peak hour Intersectlan turning movement volumes are shown in Appendix F.

I ntersecti an Operation Analysis
LOS calculations were co no led for the study intersections to evaluate their operations under I-F0,iSon Year 12i7Ao) Without Project conditions with roadway and intersection geometries consistent with Existing conditions. As shown in Sable 17-1.1, Intersection Analysis for Horizon Year )20 0J Conditions, no study area intersections are anticipated to operate at unacceptable levers of service under Horizon Yerar 12040) Wfthosert and With Project conditions. With the addition of proposed project'haffic. no additional study area Intersections are anticipated to overate at unacceptable levels of service
City al' Rancho s1raga
196
T2-2
Cotit

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2060
RTC -231

Responses to Comments
n
Ritz -Carlton Rancho Mirage
hilial Szhrzdt
Jury ?434
gab's 11.14 Ira erserlton. Analyalr In Morison Yeas (,2040} With end WOlitatid Prole -Et CCndlinonn 0 IMerar�dat
Trac
Cea obi'
2040 " u$ Ptotrst
2040 VA0i PraJrsl
Data? (sacs,)
Weekday
f
S,4t
Lrtrrd of S+anrfes
Weekday
SAT
_ l7rlay? [sec ,1.

Leval
of Smirk*_
5504mi: ay
1 Weekday
S+St`mlay
Weekday

AM PM I
AM 1 PM
AM
JAM
Av
Dago
AM PM
VP
Degr
I
,;!..J`,k So ,i 1ru Lk;.
aid Cave. I
— 1 Us.
keit" Jnh nsfehon

6.e
a.6
&7
10,1
1,.

A
A
2 Frank Sinatra Dr.

Doty. 2
CSS
9,1

9.7 ! 0.0
A
A
.B
9,3

10.5 16.3
I t.7
A
BC
C
3 kfwy. Ill and
Frank Sinatra Dr.

II

22.7 224
2433
C C C
2"32
232
27-,
Z,a,I
C
C
C
C
fnarclp Aaarhell>' F
■alai
Pr Ins Highway way Capacity Manual lath Scram', awed enrage Intanretoti derby and lava' d sarvies era theavrt lee riranee Tian. witha harlle rlgnpr •er all way akcs contra. Fcar IrthneClOni with Crzxt .tram stop c i1rd. Phe d.lay emirs* at tarrk9 let tha ward Ineradual moven-ant Scr rrlc emerttt'haring a slnpb Ianel are shown.
• G'5= Crouttreet .rcp: TS = Tr&1. %pal,
Arr = Arrival Peak I Dap = Departure Peak Hcu.

Cm cn Ursa ',Italia
14/
T2-2
Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2061
RTC -232

Responses to Comments
Rit+; rlton Rancho 7iksga
In1drW 5111,aly
July 2024
The intersection operations anatysi5 worksheets for Horizon Year (20441 Without Project consdil onS are included In Appellant P of This Initial Study. The Intersection operations analysis wo&kineests far Horizon Year 12040) With Project conditions are included in Appends F of this tri ial Study Traffic Signal Wamonns Analysis
A traffic signal warrant analysis was performed ct the unegnaG%ad driveways for Horizon Year 120.43J Without and With Project traffic canrfi4ons. No study areal intersections are anticipated to warrant a traffic signal under Harzon Year f'[I43J Without and With Project hatflk conditions_ TrafficsIgnal warrants worksheets for Horizon Year 120401 'hrrthout and WJiih Project conditions we provided er Appendix F,
Ctua4ring Analysis
A queuing analysis was performed for the study area Intersections to assess vehicle queues along the roadways. Horizon Year [204OF thout and With Project queuing analysis Findings we presented int able 17.15. Peak Hour Queuing Summary for Horizon Year 12040) Conditions_ As shown on Table 17-15. Peal; Hour Queuing Summary for Horizon Year (20441 Conditions, no Intersection turning niovemen1s:rsre anticipated Po experience periodic queuing issues during one or both peal: hours based or the weekday and weekend G.5*, percentile peck flour traffic flows for Haiizon Yeai f 2040] Without Projeci
With the addition at proposed project rralfic, no Intersection Turning mcvemenhs ore nnticIpatesd to experience periodic queuing Lssues during one or both peak hours fused on +hff weekday 4'5' cementite peak hover traffic Sows, However. the Mowing movements ore anticipated to emceed The ova Roble storage lengths based on the weekend special event Q5'• percentile pool hour traffic flow:
• Hwy_ 1 I I and Frank Sinatra Dr. f#3) , NBL movement
• Hwy. 1 'I I and Frank Sinatra Dr. f #31 - EBL movement Worksheets kr Horizon Year (2040) Without and With Project conditions queuing analysis are provided in Appendix F. The study area intersections are anhcipatecl go operate at an occepfable LOS for Hellion Year ;2040I Without Project conditions. the study area Intersections are anticipated to continue to operate at an acceptobte LOS with the addition l proposed project tf ifllc. As such, no Improvements have been recommended for Horizon'reaar 120401 traffic conditions.

City of Rid Mirage
198
T2=2
Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2062
RTC -233

Responses to Comments
A
PeteCarPoen Rancho Mirage
Initial Study.

July 2024
labile 17-15. Peak Hour Chewing Sum mar/ or Horizon Year ( 1I I)Coed Nook InPeYieEFo'
Movement
A4aIFcble
Sla cktng
obt.
(feel')
201111M Weisel Trolled -
21(40 Mk WaNct
MI, �Percenttie
Queue gee!),
Acceptable?
99r I'drCenti a Omuta
_ [ree►1'
Accerp
Weekday
leTt'
Satteday
Weekday
SAT
Weekday
SAT
Weekday
Saturday
AM PM

AM I PM
AM
PM
Mt' Depr
AM
PM
olit0
Dep'
Fla,* `a1rleitira
Irk. and Dwy.
1 .,?L r R
_
Putuxo rrrJerseeiton
10 24
2"+ I
15 'res
Yes
'Yes
Yes
Wit 1 P
47 et
M
as7
Yes
Yes
Yet
Y'r-s
Frank Sinatra
ef. old t?wy.
2 511L
_.2:e
u
a
a Yes
Yes
9 1.0
I is
51 Yes
Yes
Yeti
Yes
WBL r R.

X10
•31
36 40
Yes Yes
Yea
37 31
411

4.L
Yes
Yes
'Yes
Yes
Mwy- 111
end Frank
Sas[7ha'Dr-
N01
260
?=
1S
97 rr : vet
Yes
a3
122•
341-
148=
Yes
Yes
No
Yes
S!R
%*
0 0
0 Yes
Yes
Yes
0 0
+t
®
Yes
Yes
Yes
Yes
EBL
170
51 Yes .

Yes
Yes
61 'yr
74 244
Yes
Yves
Yes
Na
EBT 1 R
270
.....
48 84
75 Yes
Yea
Yes
63 107
115
343
'Res
Yes
Yes
Na
Sound ArCipeftclik F.

Nate*
95� petconlle ,raisr a excea9t cepacvek: qu sue May bes karroer. €;}rrer/e shaw.n 3f rratimJm alt . iwa cycles.

Sseeling Gislcrice accoproOre It the togwarel str c t2 dlslr ioe is tee than et egad is the t?acbrig oilstone* err:Metsd. An mile:owe I. loot al ',waking wtilf:ti h Cr3urried Fob* prfr ied'In the tenleion I t 14.1h poC1w1S it teller es In trestacking deem* shown on thir toile. where r +s-gple Art = &MFral Peak Four: Dep = l}ecartire Peal. Hrwr.
csey ar Rancho r i.eis
199
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RTC -234

Responses to Comments
Ritz alttsrr Rancho Mirage
Intho Study
July 2024
As shown previously on Table I7- I5, There are no weekday peak hour queuing issues anticipated all the study area intersections tot Horizon Year (MAO traffic conditions. However. ir recommended that the following improvements be implemented to accommodate Horzn Year tai With Project Traffic Condlonsweekend. special event 4,5 i percentile Patric flows NM-TRA- 1; INfrM1-TRA-2I, Therefore, Frei acts would be less thansfpnlltaant with mniaallan Into ptomtvd b1, Less -than ',Significant frrtpact. 0n June 10. 2420, the City adopted its own set of VMT thresholds and guidelines titled Trarisporfcrfran Analysis PQficy for the City al` Rancho Micro {City VMT Guidelines), The guadellnerw'are updated on February 1& 2021 by the City to remain consistent with County and Slate policies regarding criteria for determining the significance of transportation impacts of projects. The City VMT Gurrlelirtes Section LA, Project Screening, Provides details on appropriate screening thresholds that can be used to identify when a proposed land use projects anticipated to result in a less than significant impact without conducing is more detailed VMT analysis. Screening thresholds rare broken into three types:
w Project Type Screening
• Low VMT Area Screening
▪ Transit Priority Area (TPAJ Screening
A land use project need onry meet one of the above screening thresholds to result hr a le3s•than- rinnificant impact Peter to Appendix F2 Pr Qddisignd detrailr regarding VMT screening thresholds, The proposed a , 273 square foot restaurant within the Sky Mesa Recreation Area component of the proposed project b well within the 50.000 square fool threshold tag local serving retail and anticipated to paavlde an additional dining option to hotel guests and the local community.

The swimming pool and adjacent open space within the Sky Mesa Rettfration Ares] OM also expected to be comGlementary components to hotel guests and would therefore also meet the silent of fho local servIna screening criteria. Therefore. rhee Slry Ma so Recreation Area meets the Project Type Screening criteria and impacts would be less than siprslrCOW .

The i71tz Carlton Residences component of the proposed project woulp not be deemed as local nerving use, and would generate daay vehicle trips in excess of the 110 Pipe per day threshold for project type screening as described In the City VMT Guidelines: It also does not meet the Low VMT Area or Transit Priority Area Screening criteria. Therefore, Turther analysis of potential VMT impacts is provided
Project neraJed VMT
the Riverside Ttansportgtion Analysis: Model (3 IVTA1y1I u o useful tool to eatimafe VMT ras If considers InlerOctian between different land uses loused an socla=econamic data such as population, hvusehsalds, and eniplgyrsaent, The City Guidelines slate that both proposed project generated VAAT and proposed project effect on VMT should be cralcukated tor the Iralfic analysis 4 ne ITAZI in Which the proposed project is Ivccaled- Proposed project generated VMT was calculated using, the City of Rancho Mirage General r'kin update version of RIVTAM, with adjustments to sacio•ecanamlc data. As detailed in laity ar Raidn llrage
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RTC -235

Responses to Comments
RItz•Caliten Rancho Mirage
Initial Study
Jaw 2O24
Appendix F2 the proposed project generated VMT per resident is calculated to be 8-6r] tar bout eline c onditi-one,
The threshaids o1 significance used la measure a potential VMT Impact are described by project type in Section I B., Thresholds of Signficance. oI the City VMT Guideines, Thresholds for determIndtIan of significant transportation impact tar residential uses are described as VMT per resident which is:

Fa percent below the Gplywide per aesident VMT, Op,
15 percent below the regional VMT pet resident.

M the City is currently still in development at tree Citywide per resident VW value fc r purposes of determining o proposed project generated VMT Impact. the regional VMT per resident vale { 15.2J was utilized instead. Al 8.r,Ck VMT per resident, the proposed project generated VMT per resident would not exceed the City's threshold of 15 percent below Ilse regional VMT per resident. proposed project generated VMT is less than'signiicant.

Project Effect on VMT
Consistent with City 'VMT Guidelines Section LB., 'vMT Analysis for Flan -Screened Prajecti.. In raddllion la project generated VMT there is also a requhernent to evaVate a project's effect on VMT, A project's effect on VMT is calculated using the "boundary method", which includes all vehicle trips whit one or both trip -ends vvillein the designated boundary of Interest le g„ the City or Rancho MirageJ. As defaled in Appendix F2 and shown on Table 17-16. the proposed plated is n[sl forecast to causean increase In city` vide VMMT pei service popdotion as compared to without the proposed project. Therefore. imp -acts would be less then sl$rsihoaint Table 17-14. Rancho Mirage Cdywide Vehicle Mr1es Travelled per Service Population Cumulative Year 2040
Mtlthout Prolecl
Currsu olive Yarar 2040 With
Project
Population
26,882.1
:7,049
CarrpaloYr'nenl
21,6
1, bS"4
Servioe Population
48,515
48,733
Vehicle Miks Travelled
838,759
84S}.179
Vehibe PJiks Travelled per Service
Pop 'on
17,29

17.22 Source: Append* F2.
of Leis-than-:Sigi*1canl Inspect- All proposed project circulation improvements would be designed and construcied lc City standards, tend Therefore, would not result In design hozards- Site access improvements are shown on Figure 17-2 Therefore, it would not increase hazards clue to on incompaiib!e use, and impacts would be less Ihaln significant. di leas-than=SfigulfLerrl impact. Rre apparatus access throughout the deve!opmenl would include roads that meet the Fee Code requrrements for width, grade, clearance, dead-end length, and turnarounds. Therefore, the proposed prolecd's access is considered consistentwith City Fre Code requirements. Impacts to emergency access would be Iris than signHlcanl.

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RTC -236

Responses to Comments
Rltz.Carltran Rancho Mirage
Initial Study
July 20'124
7,3 kW) /on Meas Liras:
lV{I41•llld-1 Hwy. 111 and fnank Sinatra Dr- (43) - Prior to operation of the proposed project, the Appllcanl Shall increase Itre iurn !one copocety Prom 260' to 1070' Icr 5nand 144Iy1.7Rd•2 Hwy. 111 and Frank &natra D. (#3)—Prkx to 000raton of the popotoelproieor, the AppFicertt Aha! Increases turn lane capgcrly Irani 170' Po '"2 G' far the East Bound Lme rnovsment CIf '?mocha?jean
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Responses to Comments
RItz.Cac4 an Rancho 14irage
Initial Study
July 2024
Inlentinnafy le bklnk
CIty Mewha?Ova
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EXISTING NTEWSECTid1 ANALYSIS tow=
0 - FUTURE inERSECTIGN maims LOCArioN
72-2
Cont
i
DUDEK
Frrn€ 17-1
Tralrac tmpact Wyss frog) Study int .sectlans

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RTC -239

Responses to Comments
RItz.Cac4tan Rancho Mirage
Initial Study
July 2024
Intenteonal y left blank
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a STOP SIGN
- - E'I 'STING LANE
- LANLIMPROVEMENT
DUDEK

ON -SITE TRAFFIC SIGNING MO STRIPING SHOULD BE

IMPLEMENTED IN CONJUNCTION WITH DETAILED
CONSTRUCTION PLANS poR Th RROFFCT SITE.

SIGHT DISTANCE AT EACH PROTECT A[CES POHNT'
ShiOuLFi sit ammo WITH RESPECT TO STANDARD
CALTRANS AND CITY OF RA»CHD MIRAGE SIGHT

DISTANCE STATES AT THE TIME OF PREPARATION
DE FINAL DIVIDING. LANDSCAPE AND STREET

IMPROVEMENT PLANS

FRANK SUMATRA DRIVE IS A NORTH SOUTH ORIENTED
ROADWAY LOCATED KONG THE PROTCT'S W1 n
6G1N&OARY. MAMA SINATRA INIIYE APPEARS to at
r CURRENTLY CONSTRUCTED AT Ts ULTIMATE
FULL•SECTION WIDTH AS A LOCAL STREET (&0 -FOOT
RIGHT•Or-WAYy BETWEEN THE ROT ECT'S NORTHERN
,r AND SAJTNERM &OUICATiTES.
iir,ft,
♦
Print SNIiUa 1W, I
RiY, I
Pr III 5Rae,* P. i..

Orly 2
FTC 17-2
S4 .Adieaeri R oelM;T y End S FlcCeSS Recurnrrendamis
i10 rmmw.rFNwl;SW)
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2070
RTC -241

Responses to Comments
RItz.Cac4tan Rancho Mirage
Initial Study
July 2024
Intenteonal y left blank
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November 2024
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Responses to Comments

18. TRIBAL CULTURAL RESOURCES
A
Rltz•Carfti Rancho 14irage
Initial Study
July 2024
TRIBAL CULTURAL RESOURCES —
Would the project cause a
substantial adverse change in the
significance of a tribal cultural
resource, defined in Public fesources
Code section 21074 as either a site,
feature. place, cultural landscape that
is geographically defined In terms of
the size and scope of the landscape,
sacred place, or abject with cultural
Potentially
Less Than
Significant
with
Less Than
value to a California Native American
Significant
Mitigation
Significant
No
tribe, and that is:

Impact
Incorporation
Impact
Impact
a) Listed or eligible for listing in the
California Register of Historical
Resources, or in a local register
of historical resources as defined
in Public Resources Cade sealer
5O2O.1(k), or
b) A resource determined by the
lead agency. in its discretion and
supported by substantial
evidence, to be significant
pursuant to criteria set forth in
subdivision (c) a Public
Resources Code Section 5024,1,
In applying the criteria set forth
in subdivision (c) of Public
Resource Code Section 5024.1.
the lead agency shall consider
the significance of the resource to
a California Native American
tribe?
i

18.1 Setting
The Residences at Rite Carlton portion of the project site was previously "rctu-ded in a cultural resources survey completed by CR 4 TECH in 20Dd. The 27406 study consist2d Of a historlcdl,farchcenia ical resources records search, histoncal background research. Native American consultation, and a systematic field survey. The records search determined that c segment of a prehistoric trail has been recorded in 1477os extending into the 37 -acre area covered in Ihe 3704 study. however p field surrey revealed that the segment al the anginal trait was no longer exlortt, The 2006 study concluded that there were no cultural resources n the area surveyed. and no evidence of archoeoloracal depaxits were found during the monllarng program.,
CIty yr Rrn[rw Mkva
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November 2024
2072
RTC -243

Responses to Comments
Rift -Carlton Rar ee Mirage
'renal Study
laly 2024
An updated historicel/archaeological resources survey was prepared by CRM TECH in September of 2019. The 2019 study ince/des a survey and analysis on both the proposed Residences at Ritz Carlton and Sky Mesa Recreational Area, updates to the 200e records search and the historical background research, further consultation with Motive American representatives, and a systematic field survey at intensive and reconnaissance levels as appropriate. This section Is based upon the 2019 HistaricalfArchaeolcgical Resources Survey )cultural report) prepared by CRM TECH in September 2019, The cultural report is included as Appendix C to this Initial Study. Background and methodologies regarding the ckelurel resources analysis are found In Appendix C. 18,2 Discussion of Impacts
rah Less-than-SigrOcant frnpacf with Mifigatfon fncvrpoautert Refer to Section 5, Cultural Resources, for o discussion on historieal resources. Impacts would tee less rharr significant with the incarpviution of mitigation meesure lartii-Clt l -t and MM -on -2, bi !mad lmpael Skslemernt On November 21. 20.21 pursuant to Senate BIII (SE 118) and Assembly Bill f ABJ 52 the City sent letters initiating consultation processes to tribal groups identified by the elAttC os hovieg or inotenlicity having traditional lands or cultural places located within the bcundane.s or the City andfor have formally requested notrTication under AB 52 To date, the City has received the following responses_
• The Ouectaan Indian Tribe responded en December 1, 2421,deferring t4 other trues. • The 14telongo Band of Miseon Indians responded on January 24, 2022. indicating rhet the proposed project is not located within their traditionally afIBiated boundaries and encouraged consultation with other tribes,
▪ The Aqua Caliente Band or CahuiIa Indians IACBC) responded on Sanuary 24 2t]22. requested tarmal consultation under AB 52. The City engaged in government to government consultationwith ACBCI concerning tribal culltsrral resources. On Match 1, e[Fe2, AC Bel sent d letter to the City stating that their concerns have been addressed and formally concluded AB 52 consultation.

Asa result or consultation, the City has determined that potentially significant Impacts to lineal cultural resources would be reduced to a level below significance with the incoeporafion of mitigation measuresAl6Afl-CUlel and lAkl CIII.2

18.3 Mitigation Measures
Flips to the issuance r l o cacgasnp Rermit pr ground clist>,lrb!nq activities, the AcapIcantl(uwner shall enter into a Tsib rl Cultural Resources Agreement and Repatrialibn Agreement with Aqua Caliente Rand al Chulllo Indians ACBC1 The purpose althe axare rnent shah l to Formalize arntocc s and procedures he weer the Applicant/Owner and the Tribe for prateOtdan, treatment. and repatriation al relieve American human rerr7rtrns. fenersery obiecte cu truer and for reliorioen cerewnonia i erns. and other 'Tribal Cultural !esources.

A flualrried Arahaealagist, meeting the Secrelaiy of the Intenar's Protessfancal uafiFicatfun Standards, and can AC11c Native American monitor shall be present for city of Rancho l.tragos
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Page: 209
*Number 1 Authcle:xma4rtgal S coNet; Nfghlogilt Dag.; 8/1 W2C124.4: 33,45 P..t —Sam comments as previous secdon.

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2074
RTC -245

Responses to Comments
Ritz altos Rirechv ellrtrgr
ltr'1da Study
July 2024
liigl ground -disturbing activities asso-ciated with the current proposed project that may occur in areas sal native salL Both the Qualified Archaeologist and ACBCI Native American monitors maytemporal y "4 or dived ground disturbing ocfivties If potential QICndaOI0i i a [ of Tribal Cultural resources are discovered during construction 0ctivities in order -o assess any discoveries in the het€, The monitors may stop ground-dOtrubing activities In order to assess any dlICOvarifiS n the field. in the event that archaeological resources [sites, features, or arfitacfsp are exposed during construction aetivrties for the proposed project, all aonstructionwork occurring wuthin 5C feet of the find shall immediately stop unfit a Qualified Archaeologist can evaluate the significance of the find and deferrnnne whether additionof study is warranted. DepencRng an the significance of the find under the California Environmental Gfuariity Ac4 ICEQe I and the CEQA Guidelines (California Public Resources Code, Section 21082 14 C'CR 15064.5Irjt, the Qvaiifed Archaeologirt may exhaust the aura potential of the find through the process of Held Bevel recordation and then (slow work: to continue, Isolates are clearly non -significant archaeological resources las determined' by Ise Qualified orthdedloalsl, In consulkorido with the 'Native American n'ionftorf will be minimally documented in fhe field -it the discovery prover significant under CE©A. additienot work such as preparation of an archaeological treatment plran, resting, or data recovery mav' be warranted, In the event that curation of archaeological resources is tequir sd by the svparsediha reasalatory oaencY. curaleon shat be conduced by an anrarovec focal faWry In Riverside County, and curation shal be guided by California State ttistoriicat Resources Cammisston'r Gurdetnes for -we Cures ion of Archaeoloaical Collections, The Applicant/Owner shall be responsibre for all curation oasts and provide the Ci-v writ en Sfacumen'ation frClrrl n@ curation faicitity no 'war curation wave peen completed_
II . _....._ __ _ Tribal' Cultural resources (Le., prehistoric or ethnohistorlc-pettod arlifacta. food remains, or features associated with Native Americans) ore exposed during proposed project -related ground disturbance. the actions identfled by the Ague Caliente band of Cahuillo Indians in a preeXLStnng agreement for unanticiaatetf discovery shall be lollowedwntacrad. Ina udiaerran• may reauro asked to provide the servieef at a 'horned the Native American Monitor to return to site consdrt.nt to monitor ground -disturbing workm the area containing the Native American cultural resources, Ibis monitoring would occur on an as -needed basis and would be intended to ensure that Native American concerns aro token Into account during the construction process,
JNM•CUL•2 If human remains are discovered during constiuctlon of the proposed project, California Health and Safety Code. Section 11750.5. sates that feather disturb -testes oriel activities shall goo in any area or nearby area suspected to overlie remains, and the County Ccrerrer shalt be contacted. hits further excavation or disturbance of the site of any neartry arca reasonably suspected to overlie adjacent remaztsshall occur until the County Coroner has dererrnmed. within two wait Ing days of notificaflon 61 deco Very, the otapropripfe rrealmeni and disposition {Sithe human remains_ City of Raid. llrage
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RTC -246

Responses to Comments
Rita-Ca't en Rancho Mirage
Mal Study
July 2024
Pursuant to California Public Resources Code. Section 5097 98, if the remains are thought to be Nolve American the County Coroner wie notify the Native American Heritage Commission, which wil then notify the most likely descendent, p,t this time., the person who discovered the remains will contact the City of Poncho mirage iCityf to that they may work with the rnost likely descendent on the respectful treatment and disposition of the remains_ ruither provisions of the Cailomla Public Resources Code, Section 5097 98, are to be followed as applicable
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City of Raid. #large
212

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Responses to Comments

19. UTILITIES AND SERVICE SYSTEMS
RItz•Carfti Rancho Mirage
Initial Study
July 2024

UTILITIES AND NICE SYSTEMS -
Would the project
Potentially
Significant
Innoact
Less Than
5 gnif`icant
with
Mitigation
Incorpooration
Less Than
Significant
Impact
No Impact
a) Require or result in the
relocation or construction of i
new or expanded water,
wastewater treatment, or storm
water drainage, electric power,
natural gas,, or
telecommunications facilities,
the construction or relocation of
which could cause significant
environmental effects?
0 •
•
bj Have sufficient water supplies
available to serve the project
and reasonably foreseeable
future development during
normal, dry, and multiple dry
years?
Li
El
7 c) Result in a determination by the
wastewater treatment provider,
which serves or may servo the
project that it has adequate
capacity to serve the project's
projected demand in addition to
the provider's existing
e,mmitmnts?
Ti
LI
I�
S; _;;
0 d) Generate solid waste in excess
of State or local standards, ar in
excess of the capacity of local
infrastructure, or otherwise
impair the attainment of solid
waste reduction coals?
ri
El
E
`
e) Comply with federal, state, and
local management and
reduction statutes and
regulations related to solid
waste'
Q
[]
._ ]
■
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RTC -249

Responses to Comments
Rltz•Carlan Rancho Mirage
Initial Study
July 2024

19.1 Selling
AccorLIN? to The Lodge rat Rancho Mirage Hotel Expansion Project 2l GEIR, the project site a located The boundaries al the tollowing pravrden: Coachella Volley Wate1 Distract ICVWD}, Southern CaIiI rr io Edison FSCEf. the Southern Calitomia Gras Company jSCG) The Ctly contracts with Burrtec for wane and recycling services_ Additionally, telephone service is provided to 1he proposed project by Verlaon, and cable television service Is provided by Spectrum. Both Ver n and Spectrum have facilities located In the proposed project vicinity and an the existing statel propertythat can be extended la serve the proposed project.

The facilities, infrastructure, and capacity or each of hese service providers to provide services to the proposed project are discussed baslow-
A portion of this section is based upon the Drainage Study prepared by Tory R. Maker Engineering in September 2019. The Drainage Study is included as Appendix D la his: Initial Study. Background and methodologies regarding the drainage analysis are found be Appendix D. 19,2 Discussion of impacts
a, to cl Less-than•Sigitiffcarsf frrrpact.

Water
The CANE) would provide domestic water services to the proposed protect (City of Rancho Mirage 24171 The CWJC's service area encompasses approximately 640,030 acres within Riverside County and in portions of northern Imperial and northeastern San Diego counties jCVWD 2r716J, As of 2015, the Cvv'1D's domestic water system provided approximately 93;€oo dCre-feet pl water per year to 212,871 residents through 107,3,58 active meters (C VWD 2 l6i.

According to the City's General Plan — Pulalir= Servir_eq and Pocifilfiea Element, all rhlnking or domestic water comes from the Whitewater f2lvea Subbasin, which is shared bye the CVWD, the Desert Water Agency (GWAJ. Myomd Ounes ?opium' Water Company. the cities esl Indio and Coachella and multiple private groundwarer producers (C',"WiwD 20.161. The CVW'T) domestic wafer system serving Rancho Mirage includes 57 vuell$ and nine reservoir tanks jetty of Rancho Mirage 2017), The average urban water use in Coactseta Valley by CVIND Was DM gallons per day w;gpdi per connection jCIty of Rancho Mirage 2017f. In 1454, the DWA estimated that approximately 2x8.8 million acre-feet IAF) of water was stored in Whilewaater River subbasin.

The proposed project totals 236.748 square reel, GI approximately 5.5 aches, According lo CaPEEMad calculations provided in Aprend"e- AApraendix A -k, the proposed project is anticipated to use opproximaleiy 21 tv1gal/yeal equiv*atent to 64.5 AF per year ji Mal = 3M7 AFI. The proposed project's projected water demand would not exceed the 28.8 rnillaon AF capacity of the iNhitewater River Susabasin jCVWD 20Ibi and the proposed project would be aligned with the projected water demands for Coachella Valley {Table

0.1, Water Demand Prajectlons).

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RTC -250

Responses to Comments
Rltz•Cartfrars Rancho 14h -ago
Initial Study
July 2024
the plopased plojev;t would be adequately served by the CVWES and the proposed project would not require or result in the relocation Or construotion of new or expanded water facilities, Therefore. Impacts would be Tess Phan significant.

Table 14.1. Wafer rnand l`rojeclions
2015
2025
2435
2045
Total Urban Water
Demand (AFYy
263.200
34t:.9r!::)
44C..8LI;r
539.3`x'
S©utte: CVLNMF ?",'1'_
Wa shwa tar
the C'J1'vD wC.uld prowIde sewer services to 1he proposed project (City of Rancho PAIrdrg3 2317)_ Existing sewer lines e - to I0 -inches in diameter would serve the project site f dray of Rancho Mirage 20171. The CW1O wastewater !sclnrn•atlnn syst@m collects and treats approximately

18.3 million gallons per day fMGDJ. There are five water reclamation plants jvVRPI Phut are owned and operated by the CVYYD ICVWD 2019J_ Rancho Mirage Is served by the closest WRP, located an 43-030 Cook Street Palm Desert. Riverside County. California 922i t FCVWD 20r 9p.

This WRP irealrnent fociity provides a secondary level of wastewater treatment and has a design capacity of 150.0100 gallons per day }gpd}, and the existing average Influent flow is 20,000 gpd CYWD 2019},
According to the City's General Plan Public Services and U Why F3ement approximately 6,3 bilion gallons of wastewater are treated yearly and the CVYVJD wossid be able to increase its wastewater treatment capaoily as the Coachella Valley's populorlion grows. As discussed in Section 14, Population and Housing the proposed proje-ct is not crrricipated to substantially increase population in ['oiChela Valley because it would expcsnd existing hotel lac -idles and would riot construct permanent homes The proposed project is not anticipated to require or result in the Lelaaalibn of construction o new qr expanded V.0;13feWCI ter facilities, The Influent flows as reportedin the 20i C Sanitary Sewer Management Plan are approximately 26.t C gpd, which is well below the treatment capacity of I5D,00J gpd• Additionrpty, there are current expansion and Improvement plants to the wastewater collodion system and reclamation plants, which would increase the systern',s capacity ho treat wastewater {Clay of Rancho Mirage 2r]I7},_ Therefore, wastewater generation tom the proposed projet would ₹1e adequaIety served by existing Ire atrllent i•acIfities and infrastructure Brad impacts would be less Than sigrificatrl.

Statarnvaier
The proposed project would develop a site wet exlstti g hordsccspe and engineered drainage facilities, While the proposed prpjept would alter the Gmounl pt impervious surfaces on 1h9 project site compared to :he existing condition, the increase would not be substantial, The prppOsed praleet would include landscaped oleos that would allow for infiltration, The Tile would be designed to mimic existing drainage patterns and would not substantially alter the existing drainage patIern such [hat it would necessitate the cgnstruclign p[ new slarmwater drainage fociities. Therefore, impacts would be loss than siyntficarI.

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RTC -251

Responses to Comments
RItz•Carltrars Rancho Mirage
initial Study
July 21,724
Electric, Natural Gas, and Telecommunication Facilities Southern Cakfoinia Edison Isc I provides elecI is power services to the City (City of Rancho Mirage 2017), Southern Cafrfornia Gas ISCG} provides natural gas services to the City (Oily of Rancho Mirage 2017), Multiple companies, such as AT&T and Spectrum provide telecommunication services to the City (City of Rancho Mirage 21717), Catest ieNen
As dimmed In Section 6, Energy, temp= ry elechic power would be used duling.consltuctlon fqi as -necessary lighting and electec equipment, A substantiol arnount GI ngturcil gas would not be required during the construction phase of the proposed project. Petroleum usage via diesel usage from generated trips during construction would canseme 15,773 galiorts of gasoline and 146,282 gallons or diesel over the construction period. which is negligible when tampered to the 4462 billion gallons of petroleum 'hot mouldiest consumed In Cdllfannla over the course of the construction period
Op'eera icn
Energy consumption for proposed project °perat!on ate presented 1n the CaIEEMad outputs In AE endix AJpeendix A•1. According to these estimations the proposed project would consume approximately 1,999,034 kilowatt-hours (kWh) per year during operation. For comparison, in 2017 the total residential and non-residential electricity demand in Riverside County was 16,256,705,41I Wh ICEC ?01&). Although not accounted Ice In the modeling, energy consumption of the proposed project wosed else be reduced Ihreugh Installefion of high•etrrciency ligiting. For these reasons, electricity consumption during operation would not be cpn dared su4stcrntiol eneugh t4 werrent new pi expanded eleciticaf iecilities Proposed project operation would require natural gas fol various purposes: ncluding water healing, malted' gas dpplIances and energy generate routing testing. ticeurdd gas consumption associated with operation is based on the CaIEEMod outputs (see Appendcs Aeeeendix A -U According to these estimations, the proposed project would consume appioxmateIy 4.330,242 klo• eitirh Theirnal Units (kbtul per year. For comparison, in 2017 the nail -residential natural gar use within Riverside County was 39.844,317,732 kalu (C€C 2018)_ Since the proposed project would comply wflh applicable !life 24 requirements the ardtaosed project would not require a substantial amount of natural gas that would require new or expanded facilities,
Petroleum use would increase Eluting proposed pr4jecl operation cm result of residences. restaurant customers. venue catterrdees. deliveries, and employees commuting to the site: althotrah the us6 would not bg substdnuICd and would da-nzush over tine due to efficiency Increases.

Summary
The proposed project would connect to existing electric, n turrrl gm, and teie ammunicaton fines and toddies within and adjacent to the pry ]ect site. Ghe proposed prole c1 does not propose uses thol would be expected b generate an excessive need for Mete tacTt!es such ince construction or relocation would be required. Therefore, impacts would be lea Than significant LIB ai Bemis ?Ova
216
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Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2081
RTC -252

Responses to Comments
RItz•Carlarr Rancho Mirage
Initial Study
July 2024
dt less•Nian-SfersITconf Impact; The proposed protect would piocluce waste during construction and operation, typical of a normal hotel expansion development, The proposed project does not include any uses lhat would otherwise generate ex,eessive solid waste during either construction or the operalicsn sl are of the proposed project. Construction would be a-strort-term and a temporary source of waste. Operation would result in o long•terrn source For said waste {per the project's Ca[EEMod output. the project is estlrnated to generate approximately 196 terns of solid waste per yeuiI.

The City contracts Burr lec to manage and dispose of sold waste (City of Rancho Mirage 24171.

The sofxi waste would be taken to Edom Hill Transfer Station, located In Cathedral City approx moiety 3 mites north of the City of Rancho Mirage 'City of Rancho Mirage 2J17I. The Edon! 'rid fronster station has a maximum aerrrr,ifted throughput of 3.5X tons per day and a permitted capacity of asoci ions pet day for general waste (City of Rancho Mirage 2067', The solid waste is transferred from Edom Hill tronster station to Lamb Carryon Sanliary Landfill, which hos a maximum permitted 1#lrougtapul of 500 tons per day, a maximum permitted capacity cif approximately 3 million cubic yards, and a remaining capacity of appraaiimately 19 million cubic yards (CI:Recycle n.d,a,t. Given the estimated remaining capacity and the continued state and local efforts and regulations Io reduce waste streams to landfalls, the proposed prateci would be o-dequatety served by existing lanatllls. impac n would be less Om n signIAcard. dj No impart. During construction and operation_ fhe proposed project would be required to campty with applicable todemi. statecrud local regulations regarding the proper dispersal of soidwcnte, including the City of Rancha Mirage municipal Code 03 if relates to sold waste and recycling_ Therelare, no Impact would occur.
19,3 Mitigation Measures
No mitigation measures •equired.

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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2082
RTC -253

Responses to Comments
RItz.Cac4 an Rancho Mirage
Initial Study
July 2024
Intentiosally IQtt blarkk
CIty'?Mewha?Ova
T2-2
Cont
218

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2083
RTC -254

Responses to Comments
RItz•Carfti Rancho rage
Initial Study
July 2024
WILDFIRE - If located in or near
state responsibility areas or lands
classified as very high fire hazard
severity tortes, would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Incoroaration
Less Than
Significant
Impact
No Impact
a) Substantially impair an adopted
emergency response plan or
emergency evacuation plan?
❑
■
■
b) Due to slope, prevailing winds,
and other factors, exacerbate
wildfire risks, and thereby
expose project occupants to,
pollutant concentrations from a
wildfire or the uncontrolled
spread of a wildfire?
❑
n
I
^f
c) Require the installation or
maintenance of associated
infrastructure (such as roads.
fuel breaks, emergency water
sources, power lines, crr other
utilities) that may exacerbate fire
risk or that may result in
temporary or ongoing impacts
to the environment?
7 ,_•
•
dj Expose people or sbuttures to
significant risks, including
dawnrslape or downstream
flooding or landslides, as a
result of runoff, post -fire slope
instability, or drainage changes?

20.1 Setting
The project 3ile is not located in or near ;stale responsioility areas ISRAJ, and near lands are also not located In or new SPAS. Lhe project site la located wilhn a loco: responsIblfity area (LR,a,J, Accarding lo F�rhiiril 27 of lire City's General Plan Safely Element, the projecI site t located wirhln a moderate f[ra threat zone and is adjaeeni top high fire ttxeat.one ICitr ail Rancho Mirage 2471 i 1, However. the Ciiy's eneral plan Safety Element also notes that "the historical record indicates that the wildtand Fire hazard �n Rancho Mirage I;relarlvely low" Icily of Rancho mirage (11,71.

20.2 DiscUssion of IrnpaclS:
col ?dc Impact. The Cily of Rancho mirage vpera1ec an Emergency Prepotedi ss Commission that pr ✓ivies resources to reduce hrlure riiscriter cicsrnages and enhance disasier CItyai Rrncrw Mine
219
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Ritz -Carlton Rancho Mirage MND 11942
November 2024
2084
RTC -255

Responses to Comments
RItz•Carlteari Rancho Mirage
Initial Seedy
July 2024
preparedness. respnese, and recovery [City of Rancho Mirage n-d.b,l. Addflfonally, the City of Rancho Mirage p orticip cites in the Riverside Courtly Multi -ArrildictionaI ltazord Mitigation Pfan Irselel Pj {City of Rancho Mirage 2o'I7). The City .al Rancho Mirage has Iwo main evacuation routes, I-14 and Highway 1 i I [City of Rancho Mirage 20i71. Multiple fire hazard goals_ policies pod programs presented In the general plan would establuh emergency preparedness and procedure in the case of wildfires, The proposed project would not irrnpall access lo Identified evacuation routers. -o discussed In Section 17 TransposJalion. The proposer} project would col SA) bstrantially 'mace- edopted emergency responses pions yr emergency evacuation plans and therefore there would be no impocf- bp Less•tiraa•slprdlrant impact As discussed earter, the project site is not located in or near an SRA and is located within a mederrzle fire free el zone [City of Punchy Mine 2117], The prole-ci s'}e a not located within the Santa Ana Wildfire Thredt Index map, and therefore proposed project occupants would not be exposed to potential polkilanl concentrations originating from uncontrolled spread of wildfire due to prevaffrr4 Santa Ana Winds [Santa Ana Wildfire Treat Index nd-a-p- All fire protection codes present Iii the City of Rancho ty krrg,o-m municipal code would be adhered to and would lessen potential exposure or proposed project occupants to pofettants resulting from wale spread. Therefore. inspects would be leas Than Rig rfllcant- cJ Jess-thou-efgrrificunl impact The proposed project would not require. the installation or mafntencjr, of asscrlated Intrcrstrucfure {such tar roads, fuel breaks emergency venter sources, power lines. ar other selFtiest that rncw exacerbate fire rusks or that may result in temporary or ongraing impacts to the environment, As discussed in Section 1v:, Utififies and Service Systems. the proposed project would conne-ct to existing infrastructure. New inlet roads would k+e eoestlrueted es pert of the proposed project and would teltvw oil setback: and Fee code regulations established by the City or Rancho Mirage and the County of Riverside.

There rere. impacts would be lees than sfgniFcent-
dp tess-Nion-sigsrlthccrnf impact As discussed in Section fa, Hydrelo y and Wailer I uallty, the proposed project would not be located within a IOreyeer flood hazard area fCity of Rancho Mirage X.17p. Addilioredly, altheugh the proposed project would increase the amounl of impervious surface rst the site compared to existing conditions, thi Increase would not be eginiticant. According to Exhibit 2a at he City's General PIDn Safety Element, live project site is located in an area where "n me.rous rock fairs and landscapes expected to occur during an earthquake [City or Rancho Mudge 20171: hcrwovec compiler -tee wilts the City's Generd' Plan p-otpies and the California Building Code ICBCJ [discussed in Section 1, Geology and SoOsj woulcl miligdfe the pete ntlaI lonr torn Impacts to a level less than significant thetefnie, the prapased project would not expose people or structures to signilsront risks. including downslope or downstream flooding or landsides, as a result of runoff, post -fire slope instability, or drprragle changes, tmptncts would be less than signiOc4rtt-

20.3 Mitiaafton Measures:

No r'nniiaation measures required.

CI sit nrncha Keno
Ritz -Carlton Rancho Mirage MND
November 2024
2085
220
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Cont

11942
RTC -256

Responses to Comments
RItz.Carltian Rancho Mirage
Initial Study
July 2024
21, MANDATORY FINDINGS OF SIGNIFICANCE

MANDATORY FINDINGS OF

SIGNIFICANCE
Potentially
Significant
impact
Less Than
Significant
with
Mitigation
Incorporation
Less Than
Significant
impact
No Int3act
a) Does the project have the
potential to substantially
degrade the quality of the
environment, substantially
reduce the habitat of a fish or
wildlife species, cause a fish) or
wildlife population to drop
below self-sustaining levels,
threaten to eliminate a plant or
animal community, substantially
reduce the number or restrict
the range of a rare or
endangered plant or animal or
eliminate irnportant examples of
the niajc+r periods of California
history or prehistory?
Ii
LJ
b) Does the project have impacts
that are individually limited, but
cumulatively considerable?
("Cumulatively considerable"
means that the Incremental
eftectm of a project are
considerable when viewed in —
connection with the effects of
past projects, the effects of
other currant projects, and the
effects of probable future
projects)?
Li
n
®
c) Does the project have
environmental effects, which will
cause substantial adverse
effects on human beings, either
directly 0 indirectly?
0 n
a

21.1 Discussion of Impacts
�1 tics-thran.signoricarrl rmpaci with Mitluaitsan Irtcurpurared. As dscus3ed in Section 4, Biologic©t Rdsources, the pioposcsd pooled would cause paler -filial signilicanl impacts to speciol status wtYrJffe_ tlawever. with incorporation of MM -B10.1 thTQxrgh MGM -1110-b. all patenti©Ily sign1c nt CIty ai Rrncha ?Ova
221
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Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2086
RTC -257

Responses to Comments
RItz•Carlarr Rancho Mirage
Initial Study
July 2024
Impacts would be reduced to a level below significance_ the proposed project would not substantially degrade the quality of the enairor nerst as it would be developed in laird that has already been graded, Additionally, the proposed project would not substantially degrade the quality of the environment impact fish or wfdlife species, or plant communities.

As diacussera in Sentron 5, Cultural Resources, potential Impacts regarding Inadvertent discovery of cultural resources could occaar during construction of the proposed project. However, implementation of MM•CUL-1 and MM•CUL-2 would ensnare that impacts would be less then mgniricant• Overallimpacts would be lesslhan significant with the incorporation of mitigation, bj lees-tiara-SigniPicarrt Impoc1 wnnh Mifigaffon Incorporated. As provided in the analysis of shin Initial Study. line proposed piciec1 would nor 1PsuI rn significant impacts to aesthetics, agriculture anal tarestry fee-ource, air quality, biological resources. cultural resources. energy, geology and solL, geology and sons, greenhouse gas armies ens, haxxda and hazardous materials, hydrology and water quality, land use and planning. mineral resources, nape, population and housing, public services, recreation, transportation, tribal cultural resources, utilities and service systems. and wildfire. Mitigation measures recommended for biological resources, cultual resources, traffic, geology and soig, and noise would reduce Impacts to below a level of significance.

The proposed project would incrementally contribute to cumulative Impacts foi projects occurring within the City With mitigation, however, implementation of the proposed project would not result in any residual significant impacts that could contribute toa cumulative impact In addition, other related projects would presumably be bound by their appTcabfe lead agency to f1} comply with the all oppicable federal, state, and local regulatory requirements, and .12} Incorporate 4II feasible mitigation measures, consutenl wilts CEOA, to further ensure that the& potentially cumulative impacts would be reduced to less -than - significant tevela.

In Ilia absence of eesidually slgnifccant impacts, the incremental accurnulahen of effects would no! he cumulatively considerable and would be lest than signrfltontwilh Incotpornllon of mlllgation. cj Lee's -than -Significant fmrpaaf with Miff patron JncQrporotett. The potential tar adverse direct or indirect impacrs to human beings was considered throughout the above analysis in this Initial Study. Bused an rhrs evalu®tlon, (here L no substantial evidence ?hat construclion or operation of the proposed project with the proposed mitigation measures incorporated would result in a substantial adverse efrecI on hurnan beings.

21.2 Mitigation Measixes
Rerea le Mid -E10.1 Ihrouuh AAA-NO.6, MM-CUL-1. hh141-C4fL•2 11611M-NOI-ti. MM-TRA-1. and MM•fiRA•2.

Table 21.2-1: Mitigation Monitoring and Reporting Program Iiirtigattan b9eamire
Res ponsibtr±
Agency
Timing
Ver iticatrcl
n
LIB ai nrnthc Mkva
222
72-2
Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2087
RTC -258

Responses to Comments
RItz•Car Lori. Rancho ttirage
initial Study
July 2024
(Clete end
Initials)
A:ES IIIETICS
NIA
AdRittiLTURAL RESOURCES
NrA

AIR QUALITY
4-40 J Construelion Eau anent - Dire al'tiet
pro ect
Prior to and
4 Ermines Frio' la the commencement _rl
Apphoanf, Cl-y
dump
C.sinstriuction activities rnr the rroieck the aonlic:ant of Rorrcho .
l rciect
Stall reauire lit cons -ruction contractor to use
Mirooe- ?lonning,
constrrct'In
colifprn o Aii Re50ldree5 6krJrd C. c stied t
iv4sion
Il
d enaines for all •diesel -cowered eaulanenl pieces
thr3l err-.. 7 a ho'r.seJa wen kf..�C7� 4ter thr9ErBtt{a{Jt call phases of construction.
n the event or ci itla tclirrniGia es to°a..

Clans -WS In he s.r. i '. ,. • ilic "5"PeS 4I
c gnsiructicire ec oiOrn _ n I ! •••• .: ,. •I .: ,.,of may submlt r.eauctst to he City ••- tar3ay on. egtdlvai of
rnatloc of achieving pip ect-generated
c.:stinstturstjan erni was .hot earl he Ow tie numeric
cancel risk standards established by the Scut;
0OO1 141_S I1O Its M1ltslrY gr_fteflt.I J5lic e, CA51'trrtGt.

Documentation usha industry-stondaid emission
e 5trrnaj_rSlfl rr J ¢Uloc l sh 7ti be tufnlshed to the City demonstrotina that estimated proect-
ryerterailed conslouc • an saris€ions would nOl
eltceed the arc cable Sv,:,:.,°Mb cancer risk
threshold wit -_ QI'? : e. construcliort
rrtorlodrsli.11'r,:_ _ 0.__ ts?rrlonstratotlhel
r,71,- :-t-:.i nay' - . - m's ir:,-°, .J
Iri .. _ _ .kalVIC . Mk
i,. �:: . . . .. . ... .. _ . . . : . 1 . . -.., .._ •, _:... -,:Ile peauirFd -onsr uctton .+.Ialn-c..Fr-r tleet and
r5ietfrc •_ ___ orssoraved b the CrtW shall_be3
inclur eel in the contract sc'ecificalions for the
aaalcant's construction contrac-or,

BIOLOGICAL RESOURCES
MM -B10-1: Cog chetla Volley Multiple Species
Ha Mal Conservation Plan Fee Payment. As c
Project
Applicant, City
Pri ;r -c
cc;-;r,-F!uc:, -L,
Cll e? Rricha Mkva
as
T2-2
Cant

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2088
RTC -259

Responses to Comments
RItz•Carlterrr Rancho Mirage
Initial Study
Re? 2424
signatory to the Coachella Valley Multiple Species
Habitat Conservation Plan, the City of Rancho
Mirage shall require a local development mitigation
Fee prior to the issuance of building permits for the
proposed use on the ,project site at the rates
applicable at the time of payment of the tee as set
Forth in the most recent fee schedule. The project
applicant shall be required is provide
documentation to the City of Rancho Menage
confirming the payment of the local deveiopmerrt
mitigation fee.
of Rancho
Mrage-
Building/Plannin
g Division
Coachella
Valet'
C onservalson
Commission
M and
Issuance of
grading
permit
MM -UM -2 Coachella Valley Multiple Species
i Project
[curing
habitat Cons€nealion Plan Land Use Adjacency
,Applicant, City
project
Guidelines, ohe piped applaant shall implement
of Roncho
ccnstruclio
the fc=Iloyeng Land Use Adjacency Guidelines
Mil ige• Planning
n ana
[Coacheto Valley Multiple Species Habitat
Conservation Plan [CVMSHCP1, Section A.sj to
phnslon,
Coachella
operation
minimize send avoid indirect effects from
1faleY
Conservctioan
development adjacent to conservation areas fie„
Commii,sion
Santa f?asrj and SsUn Jacinto Mountains
Conservation Areal, where applicable-
• Drainage: Proposed
Development adjacent to or
within o Conservettion Asee$
shall Incorpci ate plan to
ensure that the quantify and
gvalfy of runoff discharged to
the adicicent CanservotiOn
Area is not altered in an
adverse way when compared
whir existing conditions,
Sto,rmwater systems shall be
designed to prevent the
release of toxins, chemicals,
petroreum products, exotic
plant materials, or other
elements that might degrade
or harm biologiic[rl resources or
ecosystem processes within the
adjacent Conservation Area.
• Toler- Land uses proposed
edjescent to or within ,a
CQnservotion Area that use
ehem gals or generate
CItyyr Rrn[rw Miadre
224
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Copt

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2089
RTC -260

Responses to Comments
Rltz•Carttian Rancho hfirage
initial Study
Lit? 2024
blopradrels such as manora that
are palentialy toxic or rnav
adversely affect Mdit& and
plarrt soecles, habitat, or water
quality shoe incorporate
measures to ensure that
application of such chemicals
does not result in any discharge
to the adjacent Conservation
Area.
■•
Lighting: For proposed
developrneni adjacent to or
within a Conservation Arrerx.
ighfrng shall be shielded and
directed toward the developed
area Landscape shielding or
other appropriate methods shall
be incorporated In project
design to rnnrimlxe• the effects
of lighting adjacent to of within
the adjacent Conservation
Area n accordance with The
guidelines to be included in the
Implementation Manual. nie
City of Ranalo Milage arc
crotect proponent shall avoid or
limit the use of artificial highilnit
at ntehtdurinethehaursofdawn
and dusk 'w -en menu wildlife
species are most active enc.
ensure use of LED Iirlhtinaswiti g
correlaiec_=plot tromerghlre,pf
3,OOQ Kelvins or J.
r
Noise; Proposed devetopmenl
adjacent to QI Within a
Conservation Area that
generates noise In excess of 75
A•werighted declf3a'k sound
equivalent level hourly shaft
incorporate setbacks. b eim', or
walls, as appropriate, to
minimize the effects of noise on
the adjacent Conservation
Area in accordance with the
LIB '? Rrnclia ?Ova
225
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Coat

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2090
RTC -261

Responses to Comments
RItz•Carl art Rancho 1•tirage
Initial Study
uiy 2024
s
guidelines to be included In the
lmplerrtentalfon Manual
lily rslves. Fnvusive, non-nativtr
pliant species shall not be
ircorporc ted in the landscape
for land uses adjacent Fo or
within a Conservation Area,
Landscape tteatmants within or
atljrutgnl to a Conservation
Araa sharll incorporate native
pliant matrarrnfs to tha maximum
extent feasible: recommended
native species are listed in
Table 4-I 12 jUs/NCI-CP. . ection

45.5). The plants listed in Table
4-113 shall not be used within tar
aAaaent to a Conservation
Area. this list rnay be amended
from lime to time thrash a
Minor Arrrendment with Wi dfrrle
Agency Concurrence_
•
Berrien: Land uses adjacent to
or within a Conservation NSW
shall incorporate borrarrrs in
ircom-cival project designs to
minimize unautharzed pubpc
access. corned c animal
predation, dfeaal trespass, or
dumping In a Comendaton
Aida. Such barriers may inducts
native landscaping,
Tacks/boulders, fencing., walls
and}orsignuage. €xaslinp Fencinlq
separatinra ie Pia -ern ?eaerve

1.nd (Le . crttcic9CL.

Corervaalivn Area tom t -e
nr[rnmed No dirt sire sere.
flurry milli nvnleci 'a rarev6ni
FAtriaualar tics n theAD tarn
orrterruQ and praza ry on the Ritz
Ccirlicc Halal r ropeity tl-e,,
Project The ar..jeP1 :lid]
.t. ui ar ni str,ci:;,r iPrr:r, SQt
LIB Ftr Rrnchc ?Ova
226
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Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2091
RTC -262

Responses to Comments
Rltz•Carltsarr Rancho Mirage
Initial Study
uty 2024
the rfetine at tie dicier.

Therefore, necessary barriers ?f.e.,
tencinat is cunenilt. In plc( .z.
• Grading/Land Devvlapmentt
monur octured slopes
associated wilt site
development shall not extend
into adjacent land in a
Conservation Area.

PAM -BIG -3 . Nesting Blydrr. To maintain compliance
Pra]gct
+r:+_e days
with the Migratory Llyd treaty Act caul Caltornla Rlsh
Appkeant. C_iiy
pr'scr is
and Game Code. reaardleu a1 the lime of year, If
of ho ho
inrtiotlron of
M age -Plannncing
graund-
around-disturbing and/or vegetation -clearance
elusions, a
disturbing
activities are scheduled to occur C''rrrg +he ?•..'(1n
C,ualified
activities
nesting rearon ^rta?ca!fy February 1S throug-r
Biala -list
August 3I). a biologist shall conduct a -
fluafrfied pre
construction nesting bwd survey within the project
Impact tooiptind and 6 Waal butter where legal
access Li granted alaund One dhiturbance 1oolprirut.

Surveys shall be conducted within 3 days prior to
initiation of ground -disturbing activities,
It an active nest is detected dunce the nesting bird
survey, avoidance batten shall be implemented as
determined by n qualtfied biologist (typically 340
feet far passerines and 500 feet far raptors and
speciai•status species]_ The buffer shall be of a
distancetoensure avoidance of adverse effects to
the nesting bird by accounting (as topography
ambient conditions, species, nett location and
activity type. All nests shall be monitored as
determined by the-quafitled bialcfyst until nestlings
have Pledged and dfispened or it is confirmed that
the nest has been unsuccessful or abandoned. The
qualified biologist shallhalfgall construction activities within proximity ho an active nest ll it it determined
that the activities are hamming the nest and may
result in nest abandonment as lake. the qualified
bialog:s! shall also have the authoilly to tequae
Implementation of avoidance measures related to
noise. vibration. or ightpolvfian if indirect impacts
are resulting in harassment of the nest.

CIB ai Rancho ?Ova
227
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Cont

Ritz -Carlton Rancho Mirage MND 11942
November 2024
2092
RTC -263

Responses to Comments
A
Ritz•Car4ton Rancho enrage
Initial Study
July 202.4
MN- JO -k Bu{aowing Owl_ Pre-curu,ku lnan:surveys
I;:U igi... ig::,,,,. she Le cotnpletedwithln areas of
.iOriole habitat li. e.. flatter portions of the rite) in aceardance with the Staff Report an Burrowing Owl
Kit °hen ICDFG— 201Z, with the -Rh survey rso I@SS
than 14 days prior 10 irritibtian of protect -related
activities, and the second twathn 24 hours. of p,oieet- rek ted aCtiviijea. If .eck rrr�wiiq owl or— active
Project
Applicant, City
of Rancho
Mirage- Planning
Division, a
Qualified
t3lalogist
the first
survey n_;
less thcri 14
daysprior to
initiation of
protect -
related
activities.
and the
second
within 24
hours of
project -
related
activities.
burroWing o 1 burrow;, detvctedt the aucigeel
J. olaoist shall coordinate wf i CDR," awl Preraare ta
Aurr skinfa Q 1 Plan that shalt be Srlbrnd—ec tie C4Ft't' and use wry for ieylow dnC, gpprowl prima to
pornmencin41 Project 11-3e Butrawinsa Owl
_activities.

Plan slat' descrbe proposed avoidance,
mvurmizotion, mitigation and rrtonifrarinp actions. The Burrawinjy OW Plan shalt include the nramjsar ®nd
Jo cation of occupied burr ow sites: acres or burrowing 9wI habitat ihal wit l2- impacted eetaris Of sie
n-onifodra and detaRs Qn Proposed butters anc
other ovsildance measures it ovalaance is prroposed.
1 irnachts to :,cCupled burrowing owl hrah4tra1 or
burrow eannot be avoided, the furrowing Curl Plan
5t111 asp de5,17113.0 min m¢gt*Qn arlgt T€'Joc R
actsx twit w i -vt _IMPtenaented, FPPa,
Implementation of burrow exclusion and closure
should only be coreidnred as a last resort. after etli
ahnerontiorrs have been evaIue ted as exclusion is not
In i sa f an avoidance n''irrtiintzttion, of mitigation fnethocl rid hos the. I:srassledl+t to resu` an lake._
ii-c,acI: k-.. c . _ .; ,ie�d bur?ows oarsnal be crobidect jrrtairnation snot Le aravided reeardina addeent or
nearby suitabte habitat owall ab e to owls a ar z with
t roPosoc reacatton aeons. The Protect rsraaonen'
shot ansr ernon9 the &urrawin t Ow Plan following
Cr3FW and UtiFYYS. review and aporavcol. wrhtrr. 500
°P -E- i tie i:..pec footprint:
3f avoidance' -0440
Jccardonc w,r-h ' `.E x;crff fib r* on Owe
rrJLrroiroda
As'itrationgudoinnsu:aaioeas:pcnby1tiroCalsteinin
B asilstar'r 46kh r' dit�, lcduu+�
G� .6n�
.,i - - F,.. u�. ...,-..a
.�.. �..n...r..,.i
advelsetr a₹teeing the nes f t occur
, proje;l wil
+Olinn this tone, lion wort must occur outride tiro
R al I!'g 64Cif.015, ir^ri it earl iii sJ-+awn thattliaa=bircda a:
have firsehod nosikag, wIni sh
at pout parrtve
rr!inac titan MP"' s^. fUF
City ai Roche Mine
228
72-2
Cant