Appendix O - Alternatives - Water, Electric & Natural Gas Consumption & Air Quality & GHG ComparisonCORAL MOUNTAIN RESORT
DRAFT EIR
SCH# 2021020310
TECHNICAL APPENDICES
Water, Electric & Natural Gas
Consumption
& Air Quality and GHG Comparison
Appendix 0
June 2021
LII J
DRAFT ENVIRONMENTAL IMPACT REPORT
Coral Mountain Resort, La Quinta CA
Appendix — 0
Appendix 0
Alternatives Water Use
1,200 AFY
1,100 AFY
1,000 AFY
900 AFY
800 AFY
700 AFY
600 AFY
500 AFY
400 AFY
300 AFY
200 AFY
100 AFY
0 AFY
Proposed Project
6 ACY
WAVE
La Quinta
Project Water Demand
1,058.4 ACY
906.6 ACY
C\'
Alternative 2
'MAWA-Coachella Valley Water District's Maximum Applied Water Allowance
Proposed Project:
Alternative 3
Alternative 4 Alternative 5
Summary
AFY
Residential Indoor Demand
Non -Residential Indoor Demand
Outdoor Demand
97.22
59.94
801.47
Total Project Demand 958.63
AFY/ac: 2.49286
Alternative 1: No Project/No Build
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Coral Mountain Resort Draft EIR - Appendix
0-1 June 2021
APPENDIX — 0
Alternative 2: No Project/Existing Entitlements
Summary: AFY
Residential Demand
Non -Residential Demand
Outdoor Demand
121.52
15.88
921.14
Grand Total 1058.54
AFY.rac ac
2.752679482 334.55
Alternative 3: Reduced Density
Summary: AFY
Residential Demand
Non -Residential Demand
Outdoor Demand
x+.81
40.39
801.35
Grand Total 906.55
AFYIac ac
2.3571471 .84 384_50
Alternative 4: Golf/Resort Hotel
Summary: AFY
Residential Demand 97.22
Non -Residential Demand 42.77
Outdoor Demand 95252
Grand Total 1092.51
AFYIa.c ac
2.84100742 384 '..55
Coral Mountain Resort Draft EIR - Appendix
0-2 June 2021
921.1 ACY -
APPENDIX — 0
Alternative 5: Lake Amenity/Not Hotel
Summary: AFY
Residential Demand 121.52
Non -Residential Demand 15.88
Outdoor Demand 972.95
Grand Total 1110.36
AFYIac ac
2.88779486 384.50
Coachella Valley Water District Maximum Applied Water Allowance (MAWA)
CVWD established a Maximum Applied Water Allowance (MAWA) for areas within their service
boundary. For design purposes, the MAWA is the upper limit of annual applied water for the
established landscape area. It is based upon the areas reference evapotranspiration (ET)
adjustment factor, and the size of the landscaped area. The estimated applied water use shall
not exceed the MAWA.
1,100 AFY
1,000 AFY
*MAWA (962 ac-ft/year)
900 AFY
800 AFY
700 AFY
600 AFY
500 AFY
400 AFY
300 AFY
200 AFY
100 AFY
0 AFY
Proposed Project
WAVE
La Qu i nta
Outdoor Water Demand
ACY
973.0 ACY
Alternative 2 Alternative 3 Alternative 4 Alternative 5
'MIAWA -Coachella Valley Water District's Maximum Applied Water Allowance
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Coral Mountain Resort Draft EIR - Appendix
0-3 June 2021
APPENDIX — 0
Electric and Natural Gas Alternative Comparison
Proposed Project Electricity and Natural Gas Use
Source
Units
Project Buildout
Energy Consumption
Electricity Total
kWh/yr
8,642,729
Natural Gas Total
kBTU/yr
21,855,400
Alternative 1— No Project/No Build
Alternative 1 would not result in the development of the project site. The site would remain vacant and
undisturbed; therefore, energy consumption via electricity and natural gas would not occur onsite.
Source
Units
Alternative 1
Energy Consumption
Electricity Total
kWh/yr
0
Natural Gas Total
kBTU/yr
0
Alternative 2 — No Project/Existing Entitlements
Alternative 2 would develop 750 low density residential units on approximately 204.2 acres,
approximately 8.4 acres of General Commercial in the northeast corner of the site, and a golf course on
approximately 171.9 acres of the site. Table below indicates the electricity and natural gas use of the
proposed uses, using CaIEEMod default rates for uses located in Climate Zone 15. Per CaIEEMod, golf
use would not result in electricity and natural gas use. However, it could be argued that activities
associated with golf course operations (i.e., golf cart charging, maintenance, etc.) may result in the use
of electricity.
Alternative 2 would result in approximately 40 percent less electricity and natural gas consumption
compared to the proposed project.
Land Use
Electricity
KWhr
Natural Gas
KBTU
750 Residential
(Low Density)
4,614,495*
13,182,066.5
60,000 sf
Commercial
456,511
98,400
Golf
0
0
Total
5,071,006
13,280,466.5
*This number was determined by using the project's kWh value,
dividing it by 496 (the project's proposed low density residential
number) to receive the amount of electricity per residential unit
(6,152.66 kWhr). Then 6,152.66 kWhr was multiplied by 750 to
Coral Mountain Resort Draft EIR - Appendix 0-4
June 2021
APPENDIX — 0
determine how much electricity 750 dwelling units would consume.
The same was completed for natural gas.
Source
Units
Alternative 2
Energy Consumption
Proposed Project
Energy Consumption
Percent
Difference
Electricity Total
kWh/yr
5,071,006
8,642,729
41% less
Natural Gas Total
kBTU/yr
13,280,466.5
21,855,400
40% less
Alternative 3 — Reduced Density
Alternative 3 would develop the proposed project reduced by one-third. The Reduced Density
Alternative would result in the development of 400 low density residential dwelling units, 100
resort/hotel rooms, 38,000 square feet of resort commercial uses, and 40,000 square feet of
neighborhood commercial uses. The Wave Basin would operate similarly to the proposed project. The
low density residential, resort residential, hotel and resort commercial, and regional shopping center
uses, provided in CaIEEMod, were reduced by one-third to determine the energy consumed by these
uses. The electricity use from the Wave Basin remains the same as the proposed project. Both the
proposed project and Alternative 3 would include special events throughout the year.
Alternative 3 would consume 6,223,867.4 kWhr of electricity and 14,424,564 kBTU of natural gas per
year. This is approximately 28 percent and 34 percent less electricity and natural gas consumed,
respectively, compared to the project.
Land Use
Electricity
KWh/yr
Natural Gas
kBTU/yr
330 Residential (Low Density)
2,014,135.2
5,753,708.4
70 Resort Residential
227,830.7
721,815.6
100 Hotel Rooms and 38,000 sf
Resort Commercial
2,152,174.2
7,884,096
40,000 sf Regional Shopping
Center
301,297.3
64,944
User Defined Recreational
1,528,430
0
Total
6,223,867.4
14,424,564
Source
Units
Alternative 3
Energy Consumption
Project Buildout
Energy Consumption
Percent
Difference
Electricity Total
kWh/yr
6,223,867.4
8,642,729
28% less
Natural Gas Total
kBTU/yr
14,424,564
21,855,400
34% less
Coral Mountain Resort Draft EIR - Appendix 0-5
June 2021
APPENDIX — 0
Alternative 4 — Golf/Resort Hotel
Alternative 4 would develop a resort hotel of 150 hotel rooms and associated recreational, restaurant
and retail amenities, an 18 -hole championship golf course that would be open to the public to play on a
daily fee basis, and 600 low-density residential units. The Wave Basin is removed from this Alternative;
therefore, neither the mechanical equipment required to operate the Wave, nor the four special events
associated with the Wave Basin would occur. As previously stated, the table below indicates the
electricity and natural gas use of the proposed uses, using CaIEEMod default rates for uses located in
Climate Zone 15. Per CaIEEMod, golf use would not result in electricity and natural gas use. However, it
could be argued that activities associated with golf course operations (i.e., golf cart charging,
maintenance, etc.) may result in the use of electricity.
he operation of Alternative 4 would result in a reduced energy demand, via electricity due to the
removal of the Wave Basin and neighborhood commercial. However, Alternative 4 would result in an
increase of natural gas consumption due to the increase of low density residential homes. Alternative 4
would consume 6,952,590 kWhr of electricity and 22,491,253.2 kBTU of natural gas per year. This is an
approximately 19.5 percent decrease and 3 percent increase in electricity and natural gas consumption,
respectively, compared to the project.
Land Use
Electricity
kWhr
Natural Gas
kBTU
600 Residential
(Low Density)
3,691,596.8*
10,545,653.2
150 Room Hotel/
57,000 sf Resort
Commercial
3,260,870
11,945,600
Golf course
0
0
Total
6,952,466.8
22,491,253.2
*This number was determined by using the project's kWh value
dividing it by 496 (the project's proposed low density residential
number) to receive the amount of electricity per residential unit
(6,152.66 kWhr). Then 6,152.66 kWhr was multiplied by 600 to
determine how much electricity 600 dwelling units would consume.
The same was completed for natural gas.
Source
Units
Alternative 4
Energy Consumption
Project Buildout
Energy Consumption
Percent
Difference
Electricity Total
kWh/yr
6,952,466.8
8,642,729
19.5% less
Natural Gas Total
kBTU/yr
22,491,253.2
21,855,400
3% increase
Alternative 5 — Lake Amenity/No Hotel
Alternative 5 would develop a lake amenity (instead of the Wave Basin), 750 low-density residential
units, and 8.4 acres of commercial uses at the northeast corner of the property. The Wave Basin is
removed from this Alternative; therefore, neither the mechanical equipment required to operate the
Coral Mountain Resort Draft EIR - Appendix 0-6
June 2021
APPENDIX —0
Wave, nor the four special events associated with the Wave Basin would occur. As previously stated, the
table below indicates the electricity and natural gas use of the proposed uses, using CaIEEMod default
rates for uses located in Climate Zone 15. Per CaIEEMod, the recreational lake would not result in the
consumption of electricity or natural gas during operation.
Land Use
Electricity
kWhr
Natural Gas
kBTU
750 Residential
(Low Density)
4,614,495*
13,182,066.5
60,000 sf
Commercial
456,511
98,400
Lake
0
0
Total
5,071,006
13,280,466.5
*This number was determined by using the project's kWh value,
dividing it by 496 (the project's proposed low density residential
number) to receive the amount of electricity per residential unit
(6,152.66 kWhr). Then that number was multiplied by 750 to
determine how much electricity 750 dwelling units would consume.
The same was done for natural gas.
Source
Units
Alternative 5
Energy Consumption
Project Buildout
Energy Consumption
Percent
Difference
Electricity Total
kWh/yr
5,071,006
8,642,729
41% less
Natural Gas Total
kBTU/yr
13,280,466.5
21,855,400
40% less
Coral Mountain Resort Draft EIR - Appendix
0-7 June 2021