Attachment 6H- CPC Report and Exhibits — Riverside City Council, September 5, 2023 (part 1 of 2)

Environmental Initial Study/Mitigated Negative Declaration # PR-2021-001197

APPENDIX A
Air Quality/Greenhouse Gas/Energy Impact Analysis
(AQ/GHG/Energy Impact Analysis)
(LSA, May 2023)
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices May 2023

AIR QUALITY/GREENHOUSE GAS/ENERGY
IMPACT ANALYSIS

MADISON FLATS PROJECT
RIVERSIDE, CALIFORNIA

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices This page intentionally left blank

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

May 2023

AIR QUALITY/GREENHOUSE GAS/ENERGY
IMPACT ANALYSIS

MADISON FLATS PROJECT
RIVERSIDE, CALIFORNIA

Submitted to:

Gilbane Development Company
1100 North Glebe Road, Suite 1000
Arlington, Virginia 22201

Prepared by:

LSA
1500 Iowa Avenue, Suite 200
Riverside, California 92507
951.781.9310

Project No. GBC2201

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) i
TABLE OF CONTENTS
TABLE OF CONTENTS ............................................................................................................................... i FIGURES AND TABLES ............................................................................................................................ iii LIST OF ABBREVIATIONS AND ACRONYMS ............................................................................................ iv INTRODUCTION .......................................................................................................... 1 Project Location ............................................................................................................................. 1 Project Description ........................................................................................................................ 1 Land Uses in the Project Vicinity ................................................................................................... 1 REGIONAL CLIMATE AND AIR QUALITY ........................................................................ 7 Climate/Meteorology .................................................................................................................... 7 Description of Global Climate Change and Its Sources ............................................................... 11 Carbon Dioxide ................................................................................................................................. 12 Methane ........................................................................................................................................... 13 Nitrous Oxide .................................................................................................................................... 13 Hydrofluorocarbons, Perfluorocarbons, and Sulfur Hexafluoride .................................................... 13 Effects of Global Climate Change ................................................................................................ 13 Greenhouse Gas Emissions Sources and Inventories .................................................................. 14 United States Emissions ................................................................................................................... 14 State of California Emissions ............................................................................................................ 14 Air Pollution Constituents and Attainment Status ...................................................................... 14 Regional Air Quality Improvement .............................................................................................. 15 Criteria Pollutants ............................................................................................................................. 15 Toxic Air Contaminants Trends ......................................................................................................... 16 Cancer Risk Trends ........................................................................................................................... 17 Local Air Quality .......................................................................................................................... 17 REGULATORY FRAMEWORK ...................................................................................... 19 Federal Regulations/Standards ................................................................................................... 19 State Agencies, Regulations, and Standards ............................................................................... 20 California Climate Action Milestones ............................................................................................... 20 Regional Air Quality Planning Framework ................................................................................... 22 Regional Air Quality Management Plan ...................................................................................... 22 Local Regulations ......................................................................................................................... 24 City of Riverside General Plan 2025 ................................................................................................. 24 City of Riverside Restorative Growthprint Plan ................................................................................ 24 City of Riverside Municipal Code ...................................................................................................... 25 METHODOLOGY ........................................................................................................ 27 Construction Emissions ............................................................................................................... 27 Operational Emissions ................................................................................................................. 27 THRESHOLDS OF SIGNIFICANCE ................................................................................. 29 Air Quality .................................................................................................................................... 29 Pollutants with Regional Effects ....................................................................................................... 29 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS MAY 2023

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Local Microscale Concentration Standards ...................................................................................... 30 Localized Impacts Analysis ................................................................................................................ 30 Global Climate Change ................................................................................................................. 30 Energy .......................................................................................................................................... 31 IMPACTS AND MITIGATION MEASURES ..................................................................... 33 Air Quality .................................................................................................................................... 33 Criteria Pollutant Analysis ................................................................................................................. 33 Construction Emissions ..................................................................................................................... 33 Localized Impacts Analysis ................................................................................................................ 35 Odors from Construction Activities .................................................................................................. 35 Naturally Occurring Asbestos ........................................................................................................... 35 Construction Emissions Conclusions ................................................................................................ 36 Long‐Term Operational Air Quality Impacts ................................................................................ 36 Localized Impacts Analysis ................................................................................................................ 37 Long‐Term Microscale (CO Hot Spot) Analysis ................................................................................. 37 Odors ................................................................................................................................................ 38 Greenhouse Gas Emissions .......................................................................................................... 38 Construction Greenhouse Gas Emissions ......................................................................................... 38 Operational Greenhouse Gas Emissions ........................................................................................... 39 Consistency with Greenhouse Gas Reduction Plans ......................................................................... 40 Energy .......................................................................................................................................... 41 Construction‐Period Energy Use ....................................................................................................... 41 Operational Energy Use .................................................................................................................... 41 Energy Use Summary ........................................................................................................................ 42 CONCLUSION ............................................................................................................ 45 REFERENCES .............................................................................................................. 47 Publications .................................................................................................................................. 47 Online Resources ......................................................................................................................... 49

APPENDICES
A: CALEEMOD SUMMARY REPORT
B: ENERGY WORKSHEET
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) iii
FIGURES AND TABLES

FIGURES
Figure 1: Regional and Project Location ................................................................................................. 3 Figure 2: Site Plan ................................................................................................................................... 5 Figure 3: South Coast Air Basin Ozone Trend ....................................................................................... 16 Figure 4: California Population, Gross State Product (GSP), Diesel Cancer Risk, Diesel Vehicle Miles Traveled (VMT) .................................................................................................................. 17

TABLES
Table A: Ambient Air Quality Standards ................................................................................................. 8 Table B: Summary of Health and Environmental Effects of the Criteria Air Pollutants ....................... 10 Table C: Global Warming Potential for Selected Greenhouse Gases ................................................... 12 Table D: Attainment Status of Criteria Pollutants in the South Coast Air Basin .................................. 15 Table E: Air Quality Concentrations in the Project Vicinity .................................................................. 18 Table F: Regional Thresholds for Construction and Operational Emissions......................................... 29 Table G: SCAQMD Localized Significance Thresholds .......................................................................... 31 Table H: Anticipated Construction Schedule ........................................................................................ 34 Table I: Project Construction Emissions ............................................................................................... 34 Table J: Construction Localized Impacts Analysis ................................................................................. 35 Table K: Project Operational Emissions ................................................................................................ 37 Table L: Operational Localized Impa
cts Analysis .................................................................................. 37 Table M: Project Construction Greenhouse Gas Emissions ................................................................. 39 Table N: Operational Greenhouse Gas Emissions ................................................................................ 40 Table O: Estimated Annual Energy Use of the Proposed Project ......................................................... 42

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS MAY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) iv
LIST OF ABBREVIATIONS AND ACRONYMS
°F degrees Fahrenheit
AAQS ambient air quality standards
AB Assembly Bill
ac acres

ADT average daily trips
APN Assessor's Parcel Number
AQMP Air Quality Management Plan
Basin South Coast Air Basin
BNSF Burlington Northern Santa Fe
BTU British thermal unit
CAA Clean Air Act
CAAQS California Ambient Air Quality Standards
CAFE Corporate Average Fuel Economy
CalEEMod California Emissions Estim
ator Model
CalEPA California Environmental Protection Agency
CALGreen California Green Building Standards Code
CALRecycle California Department of Resources Recycling and Recovery CARB California Air Resources Board
CCAA California Clean Air Act
CEC California Energy Commission
CEQA California Environmental Quality Act
CH4 methane

City City of Riverside
CO carbon monoxide
CO2 carbon dioxide
cy cubic yards
DPM diesel particulate matter
EIA United States Energy Information Administration
EJ Environmental Justice
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) v
EO Executive Order
EPA United States Environmental Protection Agency
ft feet

GCC global climate change
GHG greenhouse gas
GWh gigawatt‐hours
GWP Global Warming Potential
H2S hydrogen sulfide
HFCs hydrofluorocarbons
IPCC Intergovernmental Panel on Climate Change
kBTU thousand British thermal units
kWh kilowatt‐hours
LST localized significance threshold
MMT CO2e million metric tons of carbon dioxide equivalent mpg miles per gallon
MT CO2e metric tons of carbon dioxide equivalent
MT CO2e/yr metric tons of carbon dioxide equivalent per year N2O nitrous oxide
NAAQS National Ambient Air Quality Standards
NO2 nitrogen dioxide
NOX nitrogen oxides
O3 ozone

OPR Office of Planning and Research
PFCs perfluorocarbons
PM10 particulate matter less than 10 microns in size
PM2.5 particulate matter less than 2.5 microns in size ppb parts per billion
project Madison Flats Affordable Housing Project
RRG Riverside Restorative Growthprint
RRG‐CAP Riverside Restorative Growthprint‐Climate Action Plan RRG‐EPAP Riverside Restorative Growthprint‐Economic Prosperity Action Plan PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS MAY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) vi
SB Senate Bill
SCAG Southern California Association of Governments
SCAQMD South Coast Air Quality Management District
sf square feet
SF6 sulfur hexafluoride
SIP State Implementation Plan
SO2 sulfur dioxide
SRA Source Receptor Area
State State of California
Subregional CAP Subregional Climate Action Plan
TACs toxic air contaminants
USDOT United States Department of Transportation
VMT vehicle miles traveled
VOCs volatile organic compounds
Working Group GHG CEQA Significance Threshold Working Group

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 1 INTRODUCTION
This air quality, greenhouse gas (GHG) emissions, and energy impact analysis for the proposed Madison Flats Affordable Housing Project (project) has been prepared using methods and assumptions recommended in the South Coast Air Quality Management District’s (SCAQMD) CEQA Air Quality Handbook (SCAQMD 1993). This analysis includes a description of existing regulatory framework and an assessment of proje
ct construction and operational air pollutant and GHG
emissions and energy impacts. Measures to reduce or eliminate significant impacts are identified, where appropriate.

PROJECT LOCATION
The project area consists of Assessor’s Parcel Numbers (APNs) 230‐253‐010, 230‐245‐013, 230‐233‐ 013, and 230‐245‐015 and is located at the southwest corner of Madison Street and Railroad Avenue in Riverside California. The project area is approximately 3.94 acres (ac). The project site has the Burlington Northern Sant a Fe (BNSF)/Inland Empire‐Orange County Railroad Line along the southeastern boundary. The project proposes to develop the entire area of the parcels. Figure 1 shows the project location and vicinity.

PROJECT DESCRIPTION
The proposed project would develop a residential complex of three buildings comprising 76 senior residences and 45 family residences, 63 parking spaces, and 43,600 square feet (sf) of open space on an existing vacant site. The site is currently zoned as R‐1‐7000 Single Family Residential and is proposed to change to R‐3‐1500 Multifamily Residential Zone. Construction of the proposed project would
start in mid‐January 2024 and would be complete in 2025. During construction, approximately 20 cubic yards (cy) of soil would be cut and 12,700 cy would be filled, for a net 12,680 cy of soil to be imported. Figure 2 shows the site plan.

The goals of the project de
sign are to orient residential units away from active railway lines, use the residential corridor as a sound buffer to existing railway traffic noise, focus height and density towards the site interior and away from the single‐family neighborhood to the northwest of the site, integrate a 10‐
minute walk around the community for active healthy lifestyle, activate a central intergenerational courtyard where residents from the senior and family developments intermix, centralize parking areas for access to residential units and amenity spaces, and group residential units around individual courtyards.

LAND USES IN THE PROJECT VICINITY
Land uses surrounding the project site include single‐family, commercial, and industrial uses. Single‐ family residences are located north and south of the project site. Commercial uses are located to the east across Madison Street. Industrial uses are located to the south across the BNSF/Inland Empire‐ Orange County Railroad Line.

Sensitive receptors include residences, schools, hospitals, and similar uses that are sensitive to adverse air quality. The nearest sensitive receptors to the project site are single‐family homes approximately 65 feet (ft) north of the project site across Railroad Avenue as well as approximately 80 ft south of the project site beyond the railroad trac ks along Evans Street.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

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PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices SOURCE: USGS The National Map
I:\GBC2201.02\GIS\Pro\Madison Fla
ts\Madison Flats.aprx (11/8/2022)
FIGURE 1
Madison Flats Project

S A N B E R N A R D I N O

C O U N T Y

R I V E R S I D E

C O U N T Y
ÃÃ38
ÃÃ71
ÃÃ74
ÃÃ210
ÃÃ60
ÃÃ91
§¨¦215
§¨¦215
§¨¦10
§¨¦15
Project Vicinity
0 1000 2000
FEET
Project Location
Regional and Project Location
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

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PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices SOURCE: Studioneleven
FIGURE 2
I:\GBC2201\G\Site_Plan.ai (11/2/2022)
Site Plan
Madison Flats Project
FEET
2401200

1. STREET FACING PRIVATE PATIOS

2. OPEN STAIR VERTICAL CIRCULATION

3. RESIDENTIAL COURTYARDS FACING STREET

4. CENTRALIZED SENIOR PARKING

5. FAMILY PARKING

6. CORRIDOR SOUND BUFFER

7. INTERGENERATIONAL ZONE

KEYNOTES
2/3 STORY SENIOR RESIDENTIAL BUILDINGS
2/3 STORY FAMILY RESIDENTIAL BUILDINGS

AMENITIES AT GROUND FLOOR
10 MINUTE WALK

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

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P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 7 REGIONAL CLIMATE AND AIR QUALITY
The project site is in Riverside, Riverside County, California, which is part of the South Coast Air Basin (Basin) and is under the jurisdiction of SCAQMD. This Basin includes all of Orange County and the non‐desert portions of Los Angeles, San Bernardino, and Riverside Counties. Both the State of California and the federal government have establis hed health‐based ambient air quality standards (AAQS) for seven air pollutants. As detailed in Table A, these pollutants include ozone (O3), carbon monoxide (CO), nitrogen dioxide (NO2), sulfur dioxide (SO2), particulate matter less than 10 microns in size (PM10), particulate matter less than 2.5 microns in size (PM2.5), and lead. In addition, the State has set standards for sulfates, hydrogen sulfide (H2S), vinyl chloride, and visibility‐reducing particles.

These standards are designed to protect the health and welfare of the populace with a reasonable margin of safety.

Table B summarizes the most common health and environmental effects for each of the air pollutants for which there is a national and/or California AAQS, as well as for toxic air contaminants.

Because the conce
ntration standards were set at a level that protects public health with an adequate margin of safety (by the United States Environmental Protection Agency [EPA]), these health effects would not occur unless the standards are exceeded by a large margin or for a prolonged period of time.

State AAQS are typically more stringent than federal AAQS. Among the pollutants, O3 and particulate matter (PM2.5 and PM10) are considered pollutants with regional effects, while the others have more localized effects. (CARB 2022).

The California Clean Air Act (CCAA) provides SCAQMD and other air districts with the authority to manage transportation activities at indirect sources. Indirect sources of pollution include any facility, building, structure, or installation, or combination thereof, that attracts or generates mobile ‐source emissions of any pollutant. In addition, area‐source emissions that are generated when minor sources collectively emit a substantial amount of pollution are also managed by the local air districts. Examples of this would be the motor vehicles at an intersection, at a mall, and on highways. SCAQMD also regulates stat
ionary sources of pollution throughout its jurisdictional area.

The California Air Resources Board (CARB) regulates direct emissions from motor vehicles.

CLIMATE/METEOROLOGY
Air quality in the planning area is affected not only by various emission sources (e.g., mobile and industry) but also by atmospheric conditions (e.g., wind speed, wind direction, temperature, and rainfall). The regional climate within the Basin is considered semi‐arid and is characterized by warm summers, mild winters, infrequent seasonal rainfall, moderate daytime onshore breezes, and moderate
humidity. The air quality within the Basin is primarily influenced by a wide range of emissions sources—such as dense population centers, heavy vehicular traffic, and industry—and meteorology.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 8 Table A: Ambient Air Quality Standards
Pollutant Averaging
Time
California Standards1 National Standards2
Concentration3 Method4 Primary3,5 Secondary3,6 Method7 O38
1‐Hour 0.09 ppm
(180 μg/m3) Ultraviolet
Photometry
— Same as Primary
Standard
Ultraviolet
Photometry 8‐Hour 0.070 ppm
(137 μg/m3)

0.070 ppm
(137 μg/m3)
Respirable
Particulate
Matter
(PM10)9
24‐Hour 50 μg/m3
Gravimetric or Beta
Attenuation
150 μg/m3
Same as Primary
Standard
Inertial Separation
and Gravimetric
Analysis
Annual
Arithmetic
Mean
20 μg/m3 —
Fine
Particulate
Matter
(PM2.5)9
24‐Hour — — 35 μg/m3 Same as Primary
Standard Inertial Separation
and Gravimetric
Analysis
Annual
Arithmetic
Mean
12 μg/m3 Gravimetric or Beta
Attenuation 12.0 μg/m3 15 μg/m3
CO
1‐Hour 20 ppm
(23 mg/m3) Non‐Dispersive
Infrared
Photometry (NDIR)
35 ppm
(40 mg/m3) —
Non‐Dispersive
Infrared Photometry
(NDIR)
8‐Hour 9.0 ppm
(10 mg/m3)
9 ppm
(10 mg/m3) —
8‐Hour
(Lake Tahoe)
6 ppm
(7 mg/m3) — —
NO210
1‐Hour 0.18 ppm
(339 μg/m3) Gas Phase
Chemiluminescence
100 ppb
(188 μg/m3) —
Gas Phase
Chemiluminescence Annual
Arithmetic
Mean

0.030 ppm
(57 μg/m3)

0.053 ppm
(100 μg/m3)
Same as Primary
Standard
SO211
1‐Hour 0.25 ppm
(655 μg/m3)
Ultraviolet
Fluorescence
75 ppb
(196 μg/m3) —
Ultraviolet
Fluorescence;
Spectrophotometry
(Pararosaniline
Method)
3‐Hour — — 0.5 ppm
(1,300 μg/m3)
24‐Hour 0.04 ppm
(105 μg/m3)

0.14 ppm
(for certain areas)11 —
Annual
Arithmetic
Mean
— 0.030 ppm
(for certain areas)11 —
Lead12,13
30‐Day
Average 1.5 μg/m3
Atomic Absorption
— —
High‐Volume
Sampler and Atomic
Absorption
Calendar
Quarter — 1.5 μg/m3
(for certain areas)13 Same as Primary
Standard Rolling 3‐
Month
Average11
— 0.15 μg/m3
Visibility‐
Reducing
Particles14
8‐Hour See footnote 14
Beta Attenuation
and Transmittance
through Filter Tape
No National Standards Sulfates 24‐Hour 25 μg/m3 Ion
Chromatography
Hydrogen
Sulfide 1‐Hour 0.03 ppm
(42 μg/m3)
Ultraviolet
Fluorescence
Vinyl
Chloride12 24‐Hour 0.01 ppm
(26 μg/m3)
Gas
Chromatography
Source: California Air Resources Board (2016).

Footnotes are provided on the following page.

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 9 1 California standards for O3, CO (except 8‐hour Lake Tahoe), SO2 (1‐ and 24‐hour), NO2, and PM (PM10, PM2.5, and visibility‐reducing particles) are values that are not to be exceeded. All others are not to be equaled or exceeded. California AAQS are listed in the Table of Standards in Section 70200 of Title 17 of the California Code of Regulations. 2 National standards (other than for O3 and PM and those based on the annual arithmetic mean) are not to be exceeded more than once a year. The ozone standard is attained when the fourth‐highest 8‐hour concentration measured at each site in a year, averaged over 3 years, is equal to or less than the standard. For PM10, the 24‐hour standard is attained when the expected number of days per calendar year with a 24‐hour average concentration above 150 μg/m3 is equal to or less than 1. For PM2.5, the 24‐hour standard is attained when 98 percent of the daily concentrations, averaged over 3 years, are equal to or less than the standard. Contact the EPA for further clarification and current national policies. 3 Concentration expressed first in the units in which it was promulgated. Equivalent units given in parentheses are based upon a reference temperature of 25°C and a reference pressure of 760 torr. Most measurements of air quality are to be corrected to a reference temperature of 25°C and a reference pressure of 760 t orr; ppm in this table refers to ppm by volume, or micromoles of pollutant per mole of gas.
4 Any equivalent measurement method that can be shown to the satisfaction of the CARB to give equivalent results at or near the level of the air quality standard may be used.
5 National Primary Standards: The levels of air quality necessary, with an adequate margin of safety to protect the public health. 6 National Secondary Standards: The levels of air quality necessary to protect the public welfare from any known or anticipated adverse effects of a pollutant.
7 The reference method as described by the EPA. An “equivalent method” of measurement may be used but must have a “consistent relationship to the reference method” and must be approved by the EPA. 8 On October 1, 2015, the national 8‐hour O3 primary and secondary standards were lowered from 0.075 to 0.070 ppm. 9 On December 14, 2012, the national annual PM2.5 primary standard was lowered from 15 μg/m3 to 12.0 μg/m3. The existing national 24‐hour PM2.5 standards (primary and secondary) were retained at 35 μg/m3, as was the annual secondary standard of 15 μg/m3. The existing 24‐hour PM10 standards (primary and secondary) of 150 μg/m3 also were retained. The form of the annual primary and secondary standards is the annual mean, averaged over 3 years. 10 To attain the 1‐hour standard, the 3‐year average of the annual 98th percentile of the 1‐hour daily maximum concentrations at each site must not exceed 100 ppb. Note that the national 1‐hour standard is in units of parts per billion (ppb). California standards are in units of parts per million (ppm). To directly compare the national 1‐hour standard to the California standards, the units can be converted from ppb to ppm. In this case, the national standard of 100 ppb is identical to 0.100 ppm. 11 On June 2, 2010, a new 1‐hour SO2 standard was established, and the existing 24‐hour and annual primary standards were revoked. To attain the 1‐hour national standard, the 3‐year average of the annual 99th percentile of the 1‐hour daily maximum concentrations at each site must not exceed 75 ppb. The 1971 SO2 national standards (24‐hour and annual) remain in effect until 1 year after an area is designated for the 2010 standard, except that in areas designated as Nonattainment for the 1971 standards, the 1971 standards remain in effect until implementation plans to attain or maintain the 2010 standards are approved.

Note that the 1‐hour national standard is in units of parts per billion (ppb). California standards are in units of parts per million (ppm). To directly compare the 1‐hour national standard to the California standard, the units can be converted to ppm. In this case, the national standard of 75 ppb is identical to 0.075 ppm. 12 CARB has identified lead and vinyl chloride as “toxic air contaminants” with no threshold level of exposure for adverse health effects determined. These actions allow for the implementation of control measures at levels below the ambient concentrations specified for these pollutants.
13 The national standard for lead was revised on October 15, 2008, to a rolling 3‐month average. The 1978 lead standard (1.5 μg/m3 as a quarterly average) remains in effect until 1 year after an area is designated for the 2008 standard, except that in areas designated as Nonattainment for the 1978 standard, the 1978 standard remains in effect until implementation plans to attain or maintain the 2008 standards are approved.
14 In 1989, CARB converted both the general statewide 10 mi visibility standard and the Lake Tahoe 30 mi visibility standard to instrumental equivalents, which are “extinction of 0.23 per kilometer” and “extinction of 0.07 per kilometer” for the statewide and Lake Tahoe Air Basin standards, respectively.
C = degrees Celsius
g/m3 = micrograms per cubic meter
AAQS = ambient air quality standards
CARB = California Air Resources Board
CO = carbon monoxide
EPA = United States Environmental Protection Agency
mg/m3 = milligrams per cubic meter
mi = mile/miles
NO2 = nitrogen dioxide
O3 = ozone
PM = particulate matter
PM2.5 = particulate matter less than 2.5 microns in size PM10 = particulate matter less than 10 microns in size
ppb = parts per billion
ppm = parts per million
SO2 = sulfur dioxide

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 10 Table B: Summary of Health and Environmental Effects of the Criteria Air Pollutants Pollutant Effects on Health and the Environment
Ozone (O3)  Respiratory symptoms
 Worsening of lung disease leading to premature death
 Damage to lung tissue
 Crop, forest and ecosystem damage
 Damage to a variety of materials, including rubber, plastics, fabrics, paint and metals
PM2.5
(particulate matter less than

2.5 microns in aerodynamic
diameter)
 Premature death
 Hospitalization for worsening of cardiovascular disease  Hospitalization for respiratory disease
 Asthma‐related emergency room visits
 Increased symptoms, increased inhaler usage
PM10
(particulate matter less than
10 microns in aerodynamic
diameter)
 Premature death & hospitalization, primarily for worsening of respiratory disease  Reduced visibility and material soiling
Nitrogen Oxides (NOX)  Lung irritation
 Enhanced allergic responses
Carbon Monoxide (CO)  Chest pain in patients with heart disease  Headache
 Light‐headedness
 Reduced mental alertness
Sulfur Oxides (SOX)  Worsening of asthma: increased symptoms, increased medication usage, and emergency room visits
Lead  Impaired mental functioning in children
 Learning disabilities in children
 Brain and kidney damage
Hydrogen Sulfide (H2S)  Nuisance odor (rotten egg smell)  At high concentrations: headache & breathing difficulties Sulfate  Same as PM2.5, particularly worsening of asthma and other lung diseases  Reduces visibility
Vinyl Chloride  Central nervous system effects, such as dizziness, drowsiness & headaches  Long‐term exposure: liver damage & liver cancer
Visibility Reducing Particles  Reduced airport safety, scenic enjoyment, road safety, and discourages tourism Toxic Air Contaminants
About 200 chemicals have
been listed as toxic air
contaminants
 Cancer
 Reproductive and developmental effects
 Neurological effects
Source: California Air Resources Board. n.d.‐c. iADAM: Air Quality Data Statistics. Website: www.arb.ca.gov/adam (accessed January 2023).

The annual average temperature varies little throughout the Basin, ranging from the low to middle 60s, measured in degrees Fahrenheit (°F). With a more pronounced oceanic influence, coastal areas show less variability in annual minimum and maximum temperatures than inland areas. The climatological station closest to the site is the Riverside Fire Station 3 (Western Regional Climate Center 2023). The monthly average maximum temperature recorded at this station ranged from

66.8°F in January to 94.4°F in August, with an annual average maximum of 79.5°F. The monthly average minimum temperature recorded at this station ranged from 39.1°F in January to 59.6°F in PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 11 August, with an annual average minimum of 48.6°F. January is typically the coldest month, and July and August are typically the warmest months in this area of the Basin.

DESCRIPTION OF GLOBAL CLIMATE CHANGE AND ITS SOURCES
Earth’s natural warming process is known as the “greenhouse effect.” This greenhouse effect compares the Earth and the atmosphere surrounding it to a greenhouse with glass panes. The glass allows solar radiation (sunlight) into Earth’s atmosphere but prevents radiated heat from escaping, thus warming Earth’s atmosphere. GHGs keep the average surface temperature of the Earth to approximately 60°F. Howe
ver, excessive concentrations of GHGs in the atmosphere can result in increased global mean temperatures, with associated adverse climatic and ecological consequences (IPCC 2022).

Scientists refer to the global warming context of the past century as the “enhanced greenhouse effect” to distinguish it from the natural greenhouse effect (Pew Center 2006). While the increase in temperature is known as “global warming,” the resulting change in weather patterns is known as “global climate change.” Global climate change (GCC) is evidenced in changes to global temperature rise, warming oceans, shrinking ice sheets, glacial retreat, decreased snow cover, sea level ris e, declining Arctic sea ice, extreme weather events, and ocean acidification (IPCC 2022).

Higher temperatures, conducive to air pollution formation, could worsen air quality in California.

While climate change may increase the concentration of ground‐level ozone, the magnitude of the effect and, therefore, its indirect effects, are uncertain. If higher te mperatures are accompanied by drier conditions, the potential for large wildfires could increase, which, in turn, would exacerbate air quality. Additionally, severe heat accompanied by drier conditions and poor air quality could increase the number of heat‐related deaths, illnesses, and asthma attacks throughout the State.

However, if higher temperatures are a ccompanied by wetter, rather than drier conditions, the rains would temporarily clear the air of particulate pollution and reduce the incidence of large wildfires, thus reducing the pollution associated with wildfires. GHGs are present in the atmosphere naturally, are released by natural sources, or are formed from secondary reactions taking place in the atmosphere. The gases tha
t are widely seen as the principal contributors to human‐induced GCC are the following:1
 Carbon dioxide (CO2)
 Methane (CH4)
 Nitrous oxide (N2O)
 Hydrofluorocarbons (HFCs)
 Perfluorocarbons (PFCs)
 Sulfur hexafluoride (SF6)
Over the last 200 years, human activities have caused substantial quantities of GHGs to be released into the atmosphere. These extra emissions are increasing GHG concentrations in the atmosphere and enhancing the natural greenhouse effect, which can cause global warming. Although GHGs

1 The greenhouse gases listed are consistent with the definition in Assembly Bill 32 (Government Code 38505), as discussed later in this section.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 12 produced by human activities include naturally occurring GHGs (e.g., CO2, CH4, and N2O), some gases (e.g., HFCs, PFCs, and SF6) are completely new to the atmosphere. Water vapor is a GHG but is generally excluded from the list of GHGs because it is short‐lived in the atmosphere and its atmospheric concentrations are largely determined by natural processes (e.g., oceanic evaporation).

For the purposes of this air quality study, the term “GHGs” will refer collectivel y to the six gases identified in the bulleted list provided above.

These GHGs vary considerably in terms of global warming potential (GWP), which is a concept developed to compare the ability of each GHG to trap heat in the atmosphere relative to another gas. GWP is based on several factors, including the re lative effectiveness of a gas in absorbing infrared radiation and the length of time that the gas remains in the atmosphere (“atmospheric lifetime”). The GWP of each gas is measured relative to CO2, the most abundant GHG. The definition of GWP for a particular GHG is the ratio of heat trapped by one unit mass of the GHG to the ratio of heat trapped by one unit mass of CO2 over a specified time period. For example, N2O is from 265 to 310 times more potent at contributing to global warming than CO2. GHG emissions are typically measured in terms of metric tons2 of CO2 equivalents (MT CO2e). Table C identifies the GWP for each type of GHG analyzed in this report. The EPA and CARB (and the California Emissions Estimator Model [CalEEMod]) use GWP values from the 2007 IPCC Fourth Assessment Report (AR4). The IPCC has published the 2021 IPCC Sixth Assessment Report (AR6) with updated GWP values.

Table C: Global Warming Potential for Selected Greenhouse Gases Greenhouse Gas Atmospheric Lifetime
(Years) AR4 GWP (100‐year)1 AR6 GWP (100‐year)1
Carbon Dioxide (CO2) ~1002 1 (by definition) 1 (by definition) Methane (CH4) 12.4 25–34 29.8 ±11
Nitrous Oxide (N2O) 114–121 265–310 273 ±130
Source 1: California’s 2017 Climate Change Scoping Plan (CARB 2017).

Source 2: IPCC Fourth Assessment Report (IPCC 2007).

Source 3: IPCC Sixth Assessment Report (IPCC 2022).
1 The EPA and CARB use global warming potential values from the IPCC Fourth Assessment Report (AR4) (2007). 2 CO2 has a variable atmospheric lifetime and cannot be readily approximated as a single number.

AR4 = IPCC Fourth Assessment Report
AR6 = IPCC Sixth Assessment Report
CARB = California Air Resources Board
EPA = United States Environmental Protection Agency
GWP = global warming potential
IPCC = Intergovernmental Panel on Climate Change

The following discussion summarizes the characteristics of the six primary GHGs.

Carbon Dioxide
In the atmosphere, carbon generally exists in its oxidized form, as CO2. Natural sources of CO2 include the respiration (breathing) of humans, animals, and plants; volcanic outgassing; decomposition of organic matter; and evaporation from the oceans. Human‐caused sources of CO2 include the combustion of fossil fuels and wood, waste incineration, mineral production, and deforestation. The Earth maintains a natural carbon balance, and when concentrations of CO2 are upset, the system gradually returns to its natural state through natural processes. Natural changes

2 A metric ton is equivalent to approximately 1.1 tons.

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 13 to the carbon cycle work slowly, especially compared to the rapid rate at which humans are adding CO2 to the atmosphere. Natural removal processes (e.g., photosynthesis by land‐ and ocean‐ dwelling plant species) cannot keep pace with this extra input of human‐made CO2; consequently, the gas is building up in the atmosphere.

Methane
CH4 is produced when organic matter decomposes in environments lacking sufficient oxygen.

Natural sources of CH4 include fires, geologic processes, and bacteria that produce CH4 in a variety of settings (most notably, wetlands) (EPA 2010). Anthropogenic sources include rice cultivation, livestock, landfills and waste treatment, biomass burning, and fossil fuel combustion (e.g., the burning of coal, oil, and natural gas). As with CO2, the major removal process of atmospheric CH4—a chemical breakdown in the atmosphere—cannot keep pace with source emissions, and CH4 concentrations in the atmosphere are increasing.

Nitrous Oxide
N2O is produced naturally by a wide variety of biological sources, particularly microbial action in soils and water. Tropical soils and oceans account for the majority of natural source emissions. N2O is also a product of the reaction that occurs between nitrogen and oxygen during fuel combustion.

Both mobile and stationary combustion sources emit N2O. The quantity of N2O emitted varies according to the type of fuel, technology, and pollution control device used, as well as maintenance and operating practices. Agricultural soil management and fossil fuel combustion are the primary sources of human‐generated N2O emissions in California.

Hydrofluorocarbons, Perfluorocarbons, and Sulfur Hexafluoride HFCs are primarily used as substitutes for O3‐depleting substances regulated under the Montreal Protocol.3 PFCs and SF6 are emitted from various industrial processes, including aluminum smelting, semiconductor manufacturing, electric‐power transmission and distribution, and magnesium casting. There is no aluminum or magnesium production in the State; however, the rapid growth in the semiconductor industry, which is active in the State, has led to greater use of PFCs. However, there are no known project‐
related emissions of these three GHGs; therefore, these substances are not discussed further in this analysis.

EFFECTS OF GLOBAL CLIMATE CHANGE
Effects from GCC may arise from temperature increases, climate‐sensitive diseases, extreme weather events, and air quality. There may be direct temperature effects through increases in average temperature leading to more extreme heat waves and less extreme cold spells. Those living in warmer climates are likely to experience more stress and heat‐related proble ms. Heat‐related problems include heat rash and heat stroke. In addition, climate‐sensitive diseases may increase, such as those spread by mosquitoes and other disease‐carrying insects. Such diseases include malaria, dengue fever, yellow fever, and encephalitis. Extreme events such as flooding and

3 The Montreal Protocol is an international treaty that was approved on January 1, 1989, and was designated to protect the ozone layer by phasing out the production of several groups of halogenated hydrocarbons believed to be responsible for O3 depletion and that are also potent GHGs.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 14 hurricanes can displace people and agriculture. GCC may also contribute to air quality problems from increased frequency of smog and particulate air pollution.

GREENHOUSE GAS EMISSIONS SOURCES AND INVENTORIES
An emissions inventory that identifies and quantifies the primary human‐generated sources and sinks of GHGs is a well‐recognized and useful tool for addressing climate change. This section summarizes the latest information on national, State, and local GHG emission inventories. However, because GHGs persist for a long time in the atmosphere (Table C), accumulate over time, and are generally
well mixed, their impact on the atmosphere and climate cannot be tied to a specific point of emission.

United States Emissions
In 2020, the United States emitted approximately 5.2 billion MT CO2e. Emissions decreased from 2019 to 2020 by 11 percent (after accounting for sequestration from the land sector). The primary driver for the decrease was an 11 percent decrease in CO2 emissions from fossil fuel combustion.

This decrease was primarily due to a 13 percent decrease in transportation emissions driven by decreased demand due to the ongoing COVID‐19
pandemic. Electric power sector emissions also
decreased 10 percent, reflecting both a slight decrease in demand from the COVID‐19 pandemic and a continued shift from coal to less carbon intensive natural gas and renewables. GHG emissions in 2020 (after accounting for sequestration from the land sector) were 21 percen t below 2005 levels (EPA 2022a).

State of California Emissions
According to CARB emission inventory estimates, the State emitted approximately 418 million metric tons of CO2e (MMT CO2e) emissions in 2019. This is a decrease of 1.7 MMT CO2e from 2018 and 13 MMT CO2e below the State’s 2020 GHG target (CARB n.d.‐a).

CARB estimates that transportation was the source of approximately 40 percent of the State’s GHG emissions in 2019, followed by electricity generation (both in‐state and out‐of‐state) at 15 percent and industrial sources at 21 percent. The remaining sources of GHG emissions were residential and commer
cial activities at 9.7 percent and agriculture at 7.7 percent (CARB n.d.‐a).

AIR POLLUTION CONSTITUENTS AND ATTAINMENT STATUS
CARB coordinates and oversees both State and federal air pollution control programs in the State.

CARB oversees activities of local air quality management agencies and maintains air quality monitoring stations throughout the State in conjunction with the EPA and local air districts. CARB has divided the State into 15 air basins based on meteorological and topographi cal factors of air pollution. Data collected at these stations are used by CARB and the EPA to classify air basins as Attainment, Nonattainment, Nonattainment‐Transitional, or Unclassified, based on air quality data for the most recent 3 calendar years compared with the AAQS.

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 15 Attainment areas may be the following:
 Attainment/Unclassified (“Unclassifiable” in some lists). These basins have never violated the air quality standard of interest or do not have enough monitoring data to establish Attainment or Nonattainment status.
 Attainment‐Maintenance (national ambient air quality standards [NAAQS] only). These basins violated a NAAQS that is currently in use (were Nona ttainment) in or after 1990, but now attain the standard and are officially redesignated as Attainment by the EPA with a Maintenance State Implementation Plan.
 Attainment (usually only for California ambient air quality standards [CAAQS], but sometimes for NAAQS). These basins have adequate monitoring data to show attainment, have never been Nonattainment, or, for NAAQS, have completed the official Maintenance period.

Nonattainment areas are imposed with additional restrictions as required by the EPA. The air quality data are also used to monitor progress in attaining air quality standards. Table D lists the attainment status for the criteria pollutants in the Bas
in.

Table D: Attainment Status of Criteria Pollutants
in the South Coast Air Basin
Pollutant State Federal
O3 Nonattainment (1‐hour)
Nonattainment (8‐hour)
Extreme Nonattainment (1‐hour)
Extreme Nonattainment (8‐hour)
PM10 Nonattainment (24‐hour)
Nonattainment (Annual)
Attainment‐Maintenance (24‐hour)
PM2.5 Nonattainment (Annual) Serious Nonattainment (24‐hour) Moderate Nonattainment (Annual)
CO Attainment (1‐hour)
Attainment (8‐hour)
Attainment‐Maintenance (1‐hour)
Attainment‐Maintenance (8‐hour)
NO2 Attainment (1‐hour)
Attainment (Annual)
Attainment/Unclassified (1‐hour)
Attainment‐Maintenance (Annual)
SO2 Attainment (1‐hour)
Attainment (24‐hour)
Attainment/Unclassified (1‐hour)
Attainment/Unclassified (Annual)
Lead1 Attainment (30‐day average) Attainment (3‐month rolling) All Others Attainment/Unclassified N/A
Source: South Coast Air Quality Management District (n.d.‐b). 1 Only the Los Angeles County portion of the Basin is in nonattainment for lead.

CO = carbon monoxide
N/A = not applicable
NO2 = nitrogen dioxide
O3 = ozone
PM2.5 = particulate matter less than 2.5 microns in size PM10 = particulate matter less than 10 microns in size
SO2 = sulfur dioxide

REGIONAL AIR QUALITY IMPROVEMENT
Criteria Pollutants
As previously discussed, the project is under the jurisdiction of SCAQMD, which is responsible for formulating and implementing the Air Quality Management Plan (AQMP) for the Basin to bring the PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 16 area into compliance with federal and State air quality standards. Air quality in the Basin has improved as a result of the development of SCAQMD rules and control programs and the development and application of cleaner technology. O3, nitrogen oxides (NOX), volatile organic compounds (VOCs), and CO have been generally decreasing since 1975. The levels of PM10 and PM2.5 in the air have decreased since 1975, and direct emissions of PM2.5 have decreased, although direct emissions of PM10 have shown little change. Figure 3 shows the ozone trend in the Basin.

Source: Air Basin Ozone Trend Chart. (South Coast Air Quality Management District n.d.‐c).

Figure 3: South Coast Air Basin Ozone Trend
Toxic Air Contaminants Trends
In 1984, CARB adopted regulations to reduce toxic air contaminant (TAC) emissions from mobile and stationary sources and consumer products. A CARB study showed that the ambient concentration and emissions of the seven TACs responsible for the most cancer risk from airborne exposure have declined by 76 percent between 1990 and 2012 (Propper et al. 2015). Concentrations of dies el particulate matter (DPM), the most important TAC, have declined by 68 percent between 1990 and 2012 despite a 31 percent increase in State population and an 81 percent increase in diesel vehicle miles traveled (VMT), as shown on Figure 4. The study also found that the significant reductions in cancer risk to California residents from the implementation of air toxics controls are likely to continue.

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 17 Source: Ambient and Emission Trends of Toxic Air Contaminants in California (Propper et al. 2015).

Figure 4: California Population, Gross State Product (GSP), Diesel Cancer Risk, Diesel Vehicle Miles Traveled (VMT)
Cancer Risk Trends
According to CARB, cancer risk in the Basin has declined since 1990. The SCAQMD has conducted five Multiple Air Toxics Exposure Study in the South Coast Air Basin studies starting in the late 1980s (SCAQMD n.d.‐d). The latest MATES V study monitored air toxins between May 1, 2018, to April 30, 2019, and found that cancer risk from ai
r toxics has declined significantly in the Air Basin with a 40 percent decrease in cancer risk since the monitoring for the MATES IV study that occurred between July 1, 2012, and June 30, 2013, and an 84 percent decrease in cancer risk since the monitoring for the MATES II study that occurre
d between April 1, 1998, and March 31, 1999.

The MATES V study also analyzed impacts specific to the communities experiencing environmental injustices (Environmental Justice [EJ] communities) that were evaluated using the Senate Bill (SB) 535 definition of disadvantaged communities, which found that between MATES IV and MAT ES V, the cancer risk from air toxics decreased by 57 percent in EJ communities overall, compared to a 53 percent reduction in non‐EJ communities.

LOCAL AIR QUALITY
The SCAQMD, together with CARB, maintains ambient air quality monitoring stations. The air quality monitoring station that monitors air pollutant data closest to the site is the Rubidoux Monitoring Station at 5888 Mission Boulevard in Riverside, approximately 4‐1/2 miles north of the project site.

The air quality trends from this station are used to re present the ambient air quality in the project area. The ambient air quality data in Table E show that NO2 and CO levels are below the applicable State and federal standards. However, PM10 and O3 levels frequently exceed their respective standards, and PM2.5 levels occasionally exceed the federal 24‐hour standard.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 18 Table E: Air Quality Concentrations in the Project Vicinity Pollutant Standard 2019 2020 2021
CO (Measured at the Riverside – Rubidoux Monitoring Station) Maximum 1‐hour concentration (ppm) 1.5 1.8 2.1
No. of days exceeded State: 20 ppm 0 0 0
Federal: 35 ppm 0 0 0
Maximum 8‐hour concentration (ppm) 1.2 1.5 1.8
No. of days exceeded State: 9 ppm 0 0 0
Federal: 9 ppm 0 0 0
O3 (Measured at the Riverside – Rubidoux Monitoring Station) Maximum 1‐hour concentration (ppm) 0.123 0.143 0.117 No. of days exceeded State: 0.09 ppm 24 46 ND
Max 8‐hour concentration (ppm) 0.096 0.115 0.097
No. of days exceeded State: 0.07 ppm 63 86 ND
Federal: 0.07 ppm 59 82 ND
PM10 (Measured at the Riverside – Rubidoux Monitoring Station) Maximum 24‐hour concentration (g/m3) 57.6 61.9 76.0 No. of days exceeded State: 50 g/m3 110 115 0
Federal: 150 g/m3 0 0 0
Annual avg. concentration (g/m3) 40.9 ND 33.2
Exceeds Standard? State: 20 g/m3 Yes ND Yes
PM2.5 (Measured at the Riverside – Rubidoux Monitoring Station ) Maximum 24‐hour concentration (g/m3) 57.7 59.9 44.4 No. of days exceeded Federal: 35 g/m3 5 12 0
Annual avg. concentration (g/m3) 11.2 14.1 13.3
Exceeds Standard? State: 12 g/m3 No Yes No
Federal: 12 g/m3 No Yes No
NO2 (Measured at the Riverside – Rubidoux Monitoring Station) Maximum 1‐hour concentration (ppb): 56.0 62.0 52
No. of days exceeded State: 180 ppb 0 0 0
Federal: 100 ppb 0 0 0
Annual avg. concentration (ppb): 14.0 14.0 14.3
Exceeds standard? State: 30 ppb No No No
Federal: 53 ppb No No No
Source 1: Air Data: Air quality data collected at outdoor monitors across the United States (EPA 2022a).

Source 2: CARB (n.d.‐b).

Notes: Data were collected from the closest stations to the project site where data for each criteria pollutant were available. The Riverside ‐ Rubidoux Air Quality Monitoring Station is at 5888 Mission Boulevard, Rubidoux, California. g/m3 = micrograms per cubic meter
CARB = California Air Resources Board
CO = carbon monoxide
EPA = United States Environmental Protection Agency
ND = No data available
NO2 = nitrogen dioxide
O3 = ozone
PM2.5 = particulate matter smaller than 2.5 microns in size PM10 = particulate matter smaller than 10 microns in size ppb = parts per billion
ppm = parts per million

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 19 REGULATORY FRAMEWORK
Air quality, GHG, and energy standards as well as the applicable regulatory framework are discussed below.

FEDERAL REGULATIONS/STANDARDS
Pursuant to the federal Clean Air Act (CAA) of 1970, the EPA established the NAAQS. The NAAQS were established for six major pollutants, termed “criteria” pollutants. Criteria pollutants are defined as those pollutants for which the federal and State governments have established AAQS, or criteria, for outdoor concentrations to protect public health.

The EPA has designated the Southern California Asso
ciation of Governments (SCAG) as the
Metropolitan Planning Organization responsible for ensuring compliance with the requirements of the CAA for the Basin.

The United States has historically had a voluntary approach to reducing GHG emissions; however, on April 2, 2007, the United States Supreme Court ruled that the EPA has the authority to regulate CO2 emissions under the CAA. The Supreme Court ruled that GHGs fit within the CAA’s definition of a pollutant and that the EPA did not have a valid rationale for not regulating GHGs. In December 2009, the EPA issued an endangerment finding for GHGs under the CAA.

On December 7, 2009, the EPA Administrator signed a final action under the CAA, findin g that six GHGs (i.e., CO2, CH4, N2O, HFCs, PFCs, and SF6) constitute a threat to public health and welfare and that the combined emissions from motor vehicles cause and contribute to GCC.

On September 15, 2011, the EPA and the United States Department of Transportation (USDOT) issued the final rule for the first national standards to improve the fuel efficiency of medium‐ and heavy‐duty tr
ucks and buses, model years 2014 to 2018. For combination tractors, the agencies proposed engine and vehicle standards that would achieve up to a 20 percent reduction from model year 2014 in fuel consumption by the 2018 model year. For heavy‐duty pickup trucks and vans, the agencies proposed separate
gasoline and diesel truck standards, which would achieve up to a 10 percent reduction from model year 2014 for gasoline vehicles and a 15 percent reduction for diesel vehicles (12 and 17 percent, respectively, if accounting for air conditioning leakage). Lastly, for vocational vehicles, the engine and vehicle standards would achi eve up to a 10 percent reduction from model year 2014 in fuel consumption. On October 25, 2016, the EPA and the USDOT issued Phase 2 of the national standards to improve fuel efficiency standards for medium‐ and heavy‐duty trucks and buses for model years 2021 to 2027 to achieve vehicle fuel savings as high as 25 percent, depending on the vehicle category.

The Corporate Average Fuel Economy (CAFE) establishes standards that would require an industry‐ wide fleet average of approximately 49 miles per gallon (mpg) for passenger cars and light trucks in model year 2026, by increasing fuel efficien cy by 8 percent annually for model years 2024 and 2025, and 10 percent annually for model years 2026. The agency projects the final CAFE standards will save consumers nearly $1,400 in total fuel expenses over the lifetimes of vehicles produced in these model years and avoid the consumption of about 234 billion gallons of gas between model year s PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 20 2030 to 2050. The National Highway Traffic Safety Administration also projects that the standards will cut GHGs from the atmosphere, reduce air pollution, and reduce the country’s dependence on oil.

The Energy Independence and Security Act of 2007 aims to move the United States toward greater energy independence and security; increase the production of clea n renewable fuels; protect consumers; increase the efficiency of products, buildings and vehicles; promote GHG research; improve the energy efficiency of the federal government; and improve vehicle fuel economy.

The Energy Policy Act of 2005 seeks to reduce reliance on nonrenewable energy resources and provide incentives to reduce current de mand on these resources. For example, under the Energy Policy Act, consumers and businesses can obtain federal tax credits for purchasing fuel‐efficient appliances and products (including hybrid vehicles), building energy‐efficient buildings, and improving the energy efficiency of commercial buildings. Additionally, tax credits are available for the installation of qualifie d fuel cells, stationary microturbine power plants, and solar power equipment.

STATE AGENCIES, REGULATIONS, AND STANDARDS
In 1967, the State Legislature passed the Mulford‐Carrell Act, which combined two Department of Health bureaus (i.e., the Bureau of Air Sanitation and the Motor Vehicle Pollution Control Board) to establish CARB. Since its formation, CARB has worked with the public, the business sector, and local governments to find solutions to the State’s air pollution problems.

California adopted the CCAA in 1988. CARB administers the CAAQS for the 10 air pollutants designated in the CCAA. These 10 State air pollutants are the six criteria pollutants designated by the federal CAA as well as four others (i.e., visibility‐reducing particulates, H2S, sulfates, and vinyl chloride).

California Climate Action Milestones
In 1988, Assembly Bill (AB) 4420 directed the California Energy Commission (CEC) to report on “how global warming trends may affect the State’s energy supply and demand, economy, environment, agriculture, and water supplies” and offer “recommendations for avoiding, reducing and addressing the impacts.” This marked the first statutory direction to a State agency to address climate change.

The California Climate Action Registry was created to encourage voluntary reporting and early reductions of GHG emissions with the adoption of SB 1771 in 2000. The CEC was directed to assist by developing metrics and identifying and qualifying third‐party organizations to provide technical assistance and advice to GHG emission reporters. The next year , SB 527 amended SB 1771 to emphasize third‐party verification.

SB 1771 also contained several additional requirements for the CEC, including updating the State’s GHG inventory from an existing 1998 report and continuing to update it every 5 years; acquiring, developing, and distributing information on GCC to agencies an d businesses; establishing a State interagency task force to ensure policy coordination; and establishing a climate change advisory committee to make recommendations on the most equitable and efficient ways to implement PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 21 climate change requirements. In 2006, AB 1803 transferred preparation of the inventory from CEC to CARB. CARB updates the inventory annually.

AB 1493, authored by Assembly member Fran Pavley in 2002, directed CARB to adopt regulations to achieve the maximum feasible and cost‐effective reduction of GHG emissions from motor vehicles.

The so‐call
ed “Pavley regulations,” or Clean Car regulations, were approved by CARB in 2004. On September 24, 2009, CARB adopted amendments to the Pavley regulations that reduced GHG emissions in new passenger vehicles from 2009 through 2016. AB 1493 also directed the State’s Climate Action Registry to adopt protocols for reporting reductions in GHG emissions from mobile sources prior to the operative date of the regulations.

Executive Order (EO) S‐3‐05 (June 2005) established GHG targets for the State, including returning to year‐2000 emission levels by 2010, 1990 levels by 2020, and 80 percent below 1990 levels by 2050.

EO S‐3‐05 directe
d the Secretary of the California Environmental Protection Agency (CalEPA) to coordinate efforts to meet the targets with the heads of other State agencies. This group became the Climate Action Team.

In 2006, the State legislature passed the California Global Warming Solutions Act of 2006 (AB 32), which created a compreh
ensive, multiyear program to reduce GHG emissions in California. AB 32 required CARB to develop a Scoping Plan that describes the approach California will take to reduce GHGs to achieve the goal of reducing emissions to 1990 levels by 2020. The Scoping Plan was first approved by CARB in 2008, updated on May 22,
2014, and updated again on December 14, 2017. In
2016, the State Legislature passed SB 32, which codifies a 2030 GHG emissions reduction target of 40 percent below 1990 levels. With SB 32, the State legislature passed companion legislation AB 197, which provides additional direction for develo ping the Scoping Plan. The 2022 Scoping Plan update incorporates the 2030 target set by EO B‐30‐15 and codified by SB 32.

The governors of California, Arizona, New Mexico, Oregon, and Washington entered into a Memorandum of Understanding in February 2007 establishing the Western Climate Initiative. Th e governors agreed to set a regional goal for emissions reductions consistent with state‐by‐state goals, to develop a design for a regional market‐based multisector mechanism to achieve the goals, and to participate in a multistate GHG registry. The initiative has since grown to include Montana, Utah, and the Canadian provinces of Brit ish Columbia, Manitoba, Ontario, and Québec.

California is implementing the world’s first Low Carbon Fuel Standard for transportation fuels, pursuant to both EO S‐01‐07 (signed in January 2007) and AB 32. The standard requires a reduction of at least 10 percent in the CO intensity of the Stat e’s transportation fuels by 2020. This reduction is expected to reduce GHG emissions in 2020 by 17.6 MMT CO2e. Also in 2007, AB 118 created the Alternative and Renewable Fuel and Vehicle Technology Program. The CEC and CARB administer the program. This act provides funding for alternative fuel and vehicle technology research, development, and deployment to attain the State’s climate change goals, to achieve the State’s petroleum reduction objectives and clean air and GH G emission reduction standards, to develop public–private partnerships, and to ensure a secure and reliable fuel supply.

In addition to vehicle emissions regulations and the Low Carbon Fuel Standard, the third effort to reduce GHG emissions from transportation is the reduction in the demand for personal vehicle PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 22 travel (i.e., VMT). This measure was addressed in September 2008 through the Sustainable Communities and Climate Protection Act of 2008, or SB 375. The enactment of SB 375 initiated an important new regional land use planning process to mitigate GHG emissions by integrating and aligning planning for housing, land use, and transportation for California’s 18 Metropolitan Planning Organizations. The bill directed CARB to set regional GHG emission reduction targets for most areas of the State. SB 375 also contained important elements related to federally mandated regional transportation plans and the alignment of State transportation and housing planning processes.

Also codified in 2008, SB 97 required the Governor’s Office of Planning an d Research (OPR) to develop GHG emissions criteria for use in determining project impacts under the California Environmental Quality Act (CEQA). These criteria were developed in 2009 and went into effect in 2010.

EO S‐13‐08 launched a major initiative for improving the State’s adaptation to climate imp acts from sea level rise, increased temperatures, shifting precipitation, and extreme weather events.

EO S‐13‐08 ordered a California Sea Level Rise Assessment Report request from the National Academy of Sciences. The order also mandated the development of a Climate Adaptation Strategy.

The strategy, published in December 20 09, assesses the State’s vulnerability to climate change impacts and outlines possible solutions that can be implemented within and across State agencies to promote resiliency. The Strategy focused on seven areas: public health, biodiversity and habitat, ocean and coastal resources, water management, agriculture, forestry, and transportation and energy i
nfrastructure.

The initiatives, EOs, and statutes outlined above constitute the major milestones in California’s efforts to address climate change through coordinated action on climate research, GHG mitigation, and climate change adaptation. Numerous other related efforts have been undertaken by State agencies and departments to address specific questions and programmatic needs. Th e Climate Action Team coordinates these efforts and others, which constitute the California Climate Adaptation Strategy (CARB 2022).

REGIONAL AIR QUALITY PLANNING FRAMEWORK
The 1976 Lewis Air Quality Management Act established SCAQMD and other air districts throughout the State. The federal CAA Amendments of 1977 required that each state adopt an implementation plan outlining pollution control measures to attain the federal standards in nonattainment areas of the state.

CARB is responsible for incorporating AQMPs for local air basins into a St ate Implementation Plan (SIP) for EPA approval. Significant authority for air quality control within them has been given to local air districts that regulate stationary‐source emissions and develop local nonattainment plans.

REGIONAL AIR QUALITY MANAGEMENT PLAN
SCAQMD and SCAG are responsible for formulating and implementing the AQMP for the Basin. The main purpose of an AQMP is to bring the area into compliance with federal and State air quality standards. SCAQMD prepares a new AQMP every 3 years, updating the previous plan and 20‐year horizon.

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 23 The latest plan is the 2022 AQMP (SCAQMD 2022), adopted December 2, 2022. On October 1, 2015, the EPA strengthened the NAAQS for ground‐level ozone, lowering the primary and secondary ozone standard levels to 70 parts per billion (ppb). The Basin is classified as an “extreme” nonattainment area, and the Coachella Valley is classified as a “sev ere‐15” nonattainment area for the 2015 Ozone NAAQS. The 2022 AQMP was developed to address the requirements for meeting this standard.

The 2022 AQMP builds upon measures already in place from previous AQMPs. It also includes a variety of additional strategies such as regulation, accelerate d deployment of available cleaner technologies (e.g., zero emissions technologies, when cost‐effective and feasible, and low NOX technologies in other applications), best management practices, co‐benefits from existing programs (e.g., climate and energy efficiency), incentives, and other CAA measures to achieve the 2015 8‐hour ozone standard.

SCAQMD adopts rules and regulations to implement portions of the AQMP. Several of these rules may apply to project construction or operation. For examp le, SCAQMD Rule 403 requires the implementation of the best‐available fugitive dust control measure during active construction periods capable of generating fugitive dust emissions from on‐site earth‐moving activities, construction/demolition activities, and construction equipment travel on paved and unpaved roads.

Although SCAQMD is responsible for regional air quality planning ef forts, it does not have the authority to directly regulate the air quality issues associated with new development projects within the Basin, such as the proposed project. Instead, SCAQMD published the CEQA Air Quality Handbook (SCAQMD 1993) to assist lead agencies, as well as consultants, project proponents, and other interested parties, in evaluating
potential air quality impacts of projects proposed in the Basin. The CEQA Air Quality Handbook provides standards, methodologies, and procedures for conducting air quality analyses in Environmental Impact Reports and was used extensively in the preparation of this analysis. SCAQMD is currently in the process of replacing the CEQA Air Quality Handboo k (1993) with the Air Quality Analysis Handbook (SCAQMD n.d.‐a).

To assist the CEQA practitioner in conducting an air quality analysis in the interim while the replacement Air Quality Handbook is being prepared, supplemental guidance/information is provided on the SCAQMD website and includes the following: (1) on‐road vehicle emission fac tors, (2) background CO concentrations, (3) localized significance thresholds (LSTs), (4) mitigation measures and control efficiencies, (5) mobile‐source toxics analysis, (6) off‐road mobile‐source emission factors, (7) PM2.5 significance thresholds and calculation methodology, and (8) updated SCAQMD Air Quality Significance Thresholds. SCAQMD also recommends using approved models to calculate emissions from land use projects, such as the Emissions Estimator Model (CalEEMod).

These recommendations were followed in the preparation of this analysis.

The following SCAQMD rules and regulations would be applicable to the proposed project:
 SCAQMD Rule 403
(SCAQMD 2005) requires projects to incorporate fugitive dust control measures.
 SCAQMD Rule 1113 (SCAQMD 2016) limits the VOC content of architectural coatings.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 24 LOCAL REGULATIONS
City of Riverside General Plan 2025
The City of Riverside General Plan 2025 (General Plan) was adopted in November 2007 to preserve the vision and values of Riverside looking ahead to future improvements, increasing industry, and population growth. The Air Quality Element of the implemented policies intended to limit air pollution and reduce the potential sensitive receptor exposure (City of Riverside 2007). The following policies from the Air Qualit
y Element of the General Plan are applicable to the project:

Objective AQ‐1: Adopt land use policies that site polluting facilities away from sensitive receptors and vice versa, improve the jobs–housing balance, reduce vehicle miles traveled and the length of work trips, and improve the flow of traffic.

Policy AQ‐1.2: Consider potential environmental justice issues in reviewing impacts (including cumulative impacts for each project proposed).

Policy AQ‐1.3: Separate
, buffer, and protect sensitive receptors from significant sources of pollution to the greatest extent possible.

Policy AQ‐1.4: Facilitate communication between residents and businesses on nuisance issues related to air quality.

Policy AQ‐1.16: Design safe and efficient vehicular access to commercial land uses from arterial streets to ensure
efficient vehicular ingress and egress.

Policy AQ‐2.4: Monitor and strive to achieve performance goals and/or VMT reduction which are consistent with SCAG’s goals.

Policy AQ‐3.4: Require projects to mitigate, to the extent feasible, anticipated emissions that exceed the AQMP Guidelines.

Policy AQ‐3.6: Support “gree n” building codes that require air conditioning/filtration installation, upgrades or improvements for all buildings, but particularly for those associated with sensitive receptors.

Policy AQ‐3.7: Require use of pollution control measures for stationary and area sources through the use of best available control activities, fuel/material substitution, cleaner fuel alternatives, pro
duct reformulation, change in work practices and of control measures identified in the latest AQMP.

Policy AQ‐4.5: Require the suspension of all grading operations when wind speeds (as instantaneous gusts) exceed 25 mph.

City of Riverside Restorative Growthprint Plan
The Riverside Restorative Growthprint (RRG) combines two plans: the Economic Prosperity Action Plan (RRG‐EPAP) and the Climate Action Plan (RRG‐CAP), which work in conjunction to spur entrepreneurship and smart growth while advancing the City of Riverside’s (City) GHG emission reduction goals. The RRG includes actions to reduce GHG emissions that align with the City’s PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 25 planning priorities and its vision of a future “green” economy based on sustainable businesses. The RRG‐EPAP identifies the measures and strategies in the RRG‐CAP with the greatest potential to drive local economic prosperity through clean‐tech investment, entrepreneurship, and expansion of local green businesses.

In 2014, Riverside was one of 12 cities that collaborated with the Western Riverside Council of Go
vernments on a Subregional Climate Action Plan (Subregional CAP) that included 36 measures to guide Riverside’s GHG reduction efforts through 2020. The RRG‐CAP expands upon the Subregional CAP and provides a path for the City to achieve deep reductions in GHG emissions through 2035, while the RRG‐EPAP provides a framework for smart growth and low‐carbon economic development. The RRG‐CAP provides a roadmap for the City to achieve deep GHG emissions reductions through 2035. The RRG‐CAP prioritizes the implementation of policies that enable the City to fulfill the requirements of AB 32 and SB 375. The following measures from the RRG‐ CAP are applicable to the project.

Measure SR‐2: 2013 California Building Energy Efficiency Standards (Title 24, Part 6) Mandatory energy efficiency standards for buildings.

Measure SR‐12: Electric Vehicle Plan and Infrastructure Facilitate electric vehicle use by providing necessary infrastructure.

Measure SR‐13: Construction & Demolition Waste Diversion to exceed requirement by diverting 90% of C&D waste from landfills by 2035 .

Measure E‐2: Shade Trees Strategically plant trees at new residential developments to reduce the urban heat island effect.

Measure T‐2: Bicycle Parking Provide additional options for bicycle parking.

Measure T‐6: Density Improve jobs‐housing balance and reduce vehicle miles traveled by increasing hous
ehold and employment densities.

Measure T‐19: Alternative Fuel & Vehicle Technology and Infrastructure Promote the use of alternative fueled vehicles such as those powered by electric, natural gas, biodiesel, and fuel cells by Riverside residents and workers.

Measure W‐1: Water Conservation and Efficiency Reduce per capita water use by 20% by 2020.

City of Riverside Municipal Code
The City of Riverside adopted a new ordinance (i.e., Title 16, Chapter 16.24 Electrification of New Buildings on December 6, 2022) requiring most new buildings that are three stories or less to be all electric starting January 6, 2023 (City of Riverside 2022). The requirement will extend to all new buildings, regardless of height, after Jan uary 1, 2026. Based on the new ordinance, electricity will be used as the main source of energy for water heating (including pools and spas), space heating, space cooling, cooking, and clothes drying; fossil fuels of a gaseous or liquid state will not be used within the buildings.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

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P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 27 METHODOLOGY
CONSTRUCTION EMISSIONS
Construction activities can generate a substantial amount of air pollution. Construction activities are considered temporary; however, short‐term impacts can contribute to exceedances of air quality standards. Construction activities include site preparation, earthmoving, and general construction.

The emissions generated from these common construction activities include fugitive dust from soil disturbance, fuel combustion from mobile heavy‐ duty, diesel‐ and gasoline‐powered equipment, portable auxiliary equipment, and worker commute trips. CalEEMod Version 2022.1 was used to calculate air pollutant and GHG emissions from on‐site construction equipment and from worker and vehicle trips to the site. Construction of the proposed project is anticipated to begin in mid‐ January 2024 and be completed in 2025. During construction, a pproximately 20 cy of soil would be
cut and 12,700 cy would be filled, for a net 12,680 cy of soil to be imported. This analysis utilizes CalEEMod defaults for construction worker, vendor, haul trips, and construction equipment.

OPERATIONAL EMISSIONS
This impact analysis includes estimating criteria pollutant and GHG emissions and energy use associated with long‐term operation of the project. Indirect emissions of criteria pollutants and GHGs with regional impacts would be emitted by project‐generated vehicle trips, as well as energy consumed in the form of gasoline and diesel fuel. In addition, localized air quali ty impacts (i.e., higher carbon monoxide concentrations or “hot‐spots”) near intersections or roadway segments in the project vicinity would also potentially occur due to project‐generated vehicle trips.

Consistent with SCAQMD guidance for estimating emissions associated with land use development projects, CalEEMod was used to calculate the long‐ter m operational emissions and energy use associated with the project. The analysis was conducted using land use codes Apartments Low Rise and Parking Lot. Trip generation rates used in CalEEMod for the project were based on the project’s trip generation estimates, which assume the proposed project would typically generate approximatel
y 610 weekday average daily traffic (ADT) (LSA 2023). To estimate the weekend trip generation, the default CalEEMod rates for Saturday and Sunday were proportioned based on the 610 weekday ADT to be 679 and 524 ADT, respectively.

Assuming the new Riverside ordinance (i.e., Title 16, Chapter 16.24 Electrification of New Buildings) would apply to all
the project buildings, CalEEMod was modified to not include any natural gas use, and the electricity use increased based on the energy of 1 kilowatt‐hour (kWh) equaling 3,412 British thermal units (BTUs) (EIA n.d.).

Where project‐specific data were not available, default assumptions (e.g., ener gy usage, water usage, and solid waste generation) from CalEEMod were used to estimate project emissions. The CalEEMod Summary Report is included in Appendix A.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

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P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 29 THRESHOLDS OF SIGNIFICANCE
Certain air districts (e.g., SCAQMD) have created guidelines and requirements to conduct air quality analyses. SCAQMD’s current guidelines, the CEQA Air Quality Handbook (SCAQMD 1993) with associated updates, were followed in this assessment of air quality and climate impacts for the proposed project.

Based on the State CEQA Guidelines, Appendix G (Public Resources Code Sections 15000–15387), a project would normally be considered to have a significant effect on air quality if the project would violate any CAAQS, contribute substantially to an existing air quality violation, expose sensitive receptors to substantial pollutants concentrations, or conflict with adopted environmental plans and goals of the community in which it is located.

AIR QUALITY
SCAQMD has established daily emissions thresholds for construction and operation of a proposed project in the Basin. The emissions thresholds were established based on the attainment status of the Basin with regard to air quality standards for specific criteria pollutants. Because the concentration standards were set at a level that protects public health with an adequate ma rgin of safety (SCAQMD 2022), these emissions thresholds are regarded as conservative and would overstate an individual project’s contribution to health risks.

Pollutants with Regional Effects
Table F lists the CEQA significance thresholds for construction and operational emissions established for the Basin.

Table F: Regional Thresholds for Construction and Operational Emissions Emissions Source Pollutant Emissions Thresholds (lbs/day) VOCs NOX CO PM10 PM2.5 SOX
Construction 75 100 550 150 55 150
Operations 55 55 550 150 55 150
Source: Air Quality Significance Thresholds (SCAQMD 2019).

CO = carbon monoxide
lbs/day = pounds per day
NOX = nitrogen oxides
PM2.5 = particulate matter less than 2.5 microns in size PM10 = particulate matter less than 10 microns in size
SCAQMD = South Coast Air Quality Management District
SOX = sulfur oxides
VOCs = volatile organic compounds

Projects in the Basin with construction‐ or operation‐related emissions that exceed any of their respective emission thresholds would be considered significant under SCAQMD guidelines. These thresholds, which SCAQMD developed and that apply throughout the Basin, apply as both project and cumulative thresholds. If a project exceeds these standards, it is considered to have a project‐ specific and cumulative impact.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 30 Local Microscale Concentration Standards
The significance of localized project impacts under CEQA depends on whether ambient CO levels in the vicinity of the project are above or below State and federal CO standards. Because ambient CO levels are below the standards throughout the Basin, a project would be considered to have a significant CO impact if project emissions result in an exceedance of one or more of the 1‐ hour or 8‐hour standards. The following are applicable local emission concentration standards for CO:
 California State 1‐hour CO standard of 20 ppm
 California State 8‐hour CO standard of 9 ppm
Localized Impacts Analysis
SCAQMD published its Final Localized Significance Threshold Methodology in June 2003 and updated it in July 2008 (SCAQMD 2008), recommending that all air quality analyses include an assessment of both construction and operational impacts on the air quality of nearby sensitive receptors. LSTs represent the maximum emissions from a project site that are not expected to result in an exceedance of the NAAQS or the CAAQS for CO, NO2, PM10 and PM2.5, as shown in Table F. LSTs are based on the ambient concentrations of that pollutant within the project’s Source Receptor Area (SRA) and the distance to the nearest sensitive receptor. The project site is in the Metropolitan Riverside County area (SRA 23).

Sensitive receptors include residences, schools, hospitals, and similar uses that are sensitive to adverse air quality.

The nearest sensitive receptors to the project site are single‐family homes approximately 70 ft from the project site to the northwest of the project site across Railroad Avenue and approximately 125 ft to the southeast beyond the railroad tracks along Evans Street.

The SCAQMD provides LST screening tabl
es for 25‐, 50‐, 100‐, 200‐, and 500‐meter source‐receptor distances. SCAQMD LST guidelines specify that the minimum distance to be considered is 25 meters.

As identified above, the nearest sensitive receptors are located approximately 70 ft (21 meters) from the project site boundary. Th e proposed project site is 4.15 ac; however, the construction activities would only take place on portions of the project site on any one day. The SCAQMD recommends assuming that 4 ac would be disturbed in any 1 day; therefore, LSTs for the 4 ac/25‐ meter combination were derived by interpolation.

Table G shows the emission thresholds that would apply based on th e project size and distance to
nearby receptors during project construction and operation, respectively.

GLOBAL CLIMATE CHANGE
State CEQA Guidelines Section 15064(b) provides that the “determination of whether a project may have a significant effect on the environment calls for careful judgment on the part of the public agency involved, based to the extent possible on scientific and factual data”, and further states that an “ironclad definition of significant effe ct is not always possible because the significance of an activity may vary with the setting.”
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 31 Table G: SCAQMD Localized Significance Thresholds
Emissions Source Category Pollutant Emissions (lbs/day) NOX CO PM10 PM2.5
Construction (4 ac, 70 ft distance) 242 1,380 11 7
Operations (4 ac, 70 ft distance) 249 1,380 3 2
Source: Final Localized Significance Threshold Methodology (SCAQMD 2008).

Note: The local Source Receptor Area is 23—Metropolitan Riverside County. ac = acre
CO = carbon monoxide
ft = foot
lbs/day = pounds per day
NOX = nitrogen oxides
PM2.5 = particulate matter less than 2.5 microns in size PM10 = particulate matter less than 10 microns in size
SCAQMD = South Coast Air Quality Management District

Appendix G of the State CEQA Guidelines includes significance thresholds for GHG emissions. A project would normally have a significant effect on the environment if it would do either of the following:
 Generate GHG emissions, either directly or indirectly, that may have a significant impact on the environment
 Conflict with an applicable plan, poli cy, or regulation adopted for the purpose of reducing the emissions of GHGs
Currently, there is no Statewide GHG emissions threshold that has been used to determine the potential GHG emissions impacts of a project. Threshold methodology and thresholds are still being developed and revised by air districts in California.

To provide guidance to local lead agencies on de
termining significance for GHG emissions in their
CEQA documents, SCAQMD convened a GHG CEQA Significance Threshold Working Group (Working Group) in 2008. This Working Group proposed a tiered approach for evaluating GHG emissions for development projects where SCAQMD is not the lead agency. The applicable ti er for this project is Tier 3, which states that if GHG emissions are less than 3,000 MT of CO2e per year (MT CO2e/yr), project‐level and cumulative GHG emissions would be less than significant.

ENERGY
Although no quantitative thresholds related to energy are included in the State CEQA Guidelines, the State CEQA Guidelines indicate that a project would normally have a significant adverse energy impact if the project would do either of the following:
 Result in a potentially significant environmental impact due to wasteful, inefficient, or unnecessary consump
tion of energy resources during project construction or operation; or  Conflict with or obstruct a State or local plan for renewable energy or energy efficiency.

For the purposes of this analysis, impacts to energy resources will be considered significant if the project would result in the wasteful, inefficient, or unnecessary consumption of fuel or energ y, PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 32 and/or conversely, if the project would not incorporate renewable energy or energy efficiency measures into building design, equipment use, transportation, or other project features.

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 33 IMPACTS AND MITIGATION MEASURES
This section identifies the air quality, GHG, and energy impacts associated with implementation of the proposed project. Mitigation measures are recommended, as appropriate, for significant impacts to eliminate them or reduce them to a less than significant level.

AIR QUALITY
Criteria Pollutant Analysis
The Basin is currently designated nonattainment for O3, PM10, and PM2.5 standards. The Basin’s nonattainment status is attributed to the region’s development history. Past, present, and future development projects contribute to the region’s adverse air quality impacts on a cumulative basis.

By its very nature, air pollution is largely a cumulative impact. No single project is sufficient in size to, by itself, result in nonattainme nt of an AAQS. Instead, a project’s individual emissions contribute to existing cumulatively significant adverse air quality impacts. If a project’s contribution to the cumulative impact is considerable, then the project’s impact on air quality would be considered significant.

In developing thresholds of significance for air pollutants, SCAQMD considered the emission leve ls for which a project’s individual emissions would be cumulatively considerable. If a project exceeds the identified significance thresholds, its emissions would be cumulatively considerable, resulting in significant adverse air quality impacts to the region’s existing air quality conditions. Therefore, additional analysis to assess cumulative impacts is not necessary. The following analysis assess es the potential project‐level air quality impacts associated with construction and operation of the proposed project.

Construction Emissions
During construction, short‐term degradation of air quality may occur due to the release of PM emissions (e.g., fugitive dust) generated by excavating, grading, hauling, and paving activities.

Emissions from construction equipment are also anticipated and would include CO, NOX, VOCs, directly emitted PM2.5 and PM10, and TACs such as DPM.

Construction‐related effects on air quality from the proposed project would be greatest during grading, due to construction activity on unpaved surfaces. If not properly controlled, these activities would temporarily generate particulate emissions. Unless properly controlled, vehicles leaving the site would deposit dirt and mud on local streets, wh ich could be an additional source of airborne dust after it dries. PM10 emissions would vary from day to day, depending on the nature and magnitude of construction activity and local weather conditions. PM10 emissions would depend on soil moisture, the silt content of soil, wind speed, and the amount of operating equipment. Larger dust particles would settle near the source, while fine particles would be dispersed over greater distances from the construction site.

Water or other soil stabilizers can be used to control dust at least twice daily, resulting in emission reductions of 50
percent or more. The SCAQMD has established Rule 403, Fugitive Dust Control, PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 34 which would require the applicant to implement measures that would reduce the amount of PM generated during the construction period (SCAQMD 2005).

In addition to dust‐related PM10 emissions, heavy trucks and construction equipment powered by gasoline and diesel engines would generate CO, SO2, NOx, VOCs and some soot particulate (PM2.5 and PM10) in exhaust emissions. If construction activities were to increase traffic congestion in the area, CO and other emissions from traffic would increase slightly while those vehicles idle in traffic.

These emissions would be temporary in nature and limited to the immediate area surrounding the construction site.

Construction emissions were estimated for the project using CalEEMod. Table H shows the tentative construction schedul
e assuming a construction start date in mid‐January 2024 and a completion date in 2025. During construction, 20 cy of soil would need to be imported and 12,700 cy exported for a net of 12,680 cy exported. This analysis utilizes CalEEMod defaults for cons truction worker, vendor, haul trips, and construction equipment. Construction‐related emissions are presented in Table I. The CalEEMod Summary Report is included in Appendix A.

Table H: Anticipated Construction Schedule
Phase Name Phase Start Date Phase End Date Number of Days/Week Number of Days Site Preparation 1/16/2024 2/23/2024 5 29
Grading 2/24/2024 3/6/2024 5 8
Building Construction 3/7/2024 1/23/2025 5 230
Architectural Coating 9/3/2024 2/18/2025 5 121
Paving 1/24/2025 2/18/2025 5 18
Source: Compiled by LSA based on information provided by the Project Applicant (January 2023).

Table I: Project Construction Emissions
Project Construction Maximum Pollutant Emissions (lbs/day) VOCs NOX CO SOX PM10 PM2.5
Site Preparation 4 36 34 <1 2 2
Grading 2 35 34 <1 5 2
Building Construction 2 12 21 <1 2 1
Architectural Coating 7 1 3 <1 <1 <1
Paving 1 7 10 <1 1 <1
Maximum 9 36 34 <1 5 2
SCAQMD Thresholds 75 100 550 150 150 55
Exceeds? No No No No No No
Source: Compiled by LSA (January 2023).

Assumes that architectural coatings are applied during both the building construction and paving phases.

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 35 As shown in Table I, construction emissions associated with the project would not exceed the SCAQMD thresholds for VOC, NOX, CO, SOX, PM2.5, and PM10. Therefore, construction of the proposed project would not result in a cumulatively considerable increase of any criteria pollutant for which the project region is in nonattainment under an applicable NAAQS or CAAQS.

Localized Impacts Analysis
Table J shows the portion of the construction emissions that would be emitted on the project site impact area compared to the LSTs. Table J shows that the localized construction emissions would not result in a locally significant air quality impact.

Table J: Construction Localized Impacts Analysis
Emissions Sources Pollutant Emissions (lbs/day)
NOX CO PM10 PM2.5
On‐Site Emissions 36 33 2 1
LST 242 1,380 11 7
Exceeds Threshold? No No No No
Source: Compiled by LSA Associates, Inc. (January 2022).

Note: The SRA is Metropolitan Riverside County, 4 ac, receptors at 70 ft. ac = acre/acres
CO = carbon monoxide
ft = foot/feet
lbs/day = pounds per day
NOX = nitrogen oxides
LST = localized significance threshold
PM2.5 = particulate matter less than 2.5 microns in size PM10 = particulate matter less than 10 microns in size
SRA = Source Receptor Area

Odors from Construction Activities
Heavy‐duty equipment in the project area during construction would emit odors, primarily from the equipment exhaust. However, the construction activity would cease after individual construction is completed. No other sources of objectionable odors have been identified for the proposed project, and no mitigation measures are required.

SCAQMD Rule 402 regarding nuisances states that “A person shall not discharge from any source whatsoever such quantities of air contaminants or other material which cause injury, detriment, nuisance, or annoyance to any considerable number of persons or to the public, or which endanger the comfort, repose, health or safety of any such persons or the public, or which cause, or have a natural tendency to cause, injury
or damage to business or property.” The proposed uses are not anticipated to emit any objectionable odors. Therefore, objectionable odors posing a health risk to potential on‐site and existing off‐site uses would not occur as a result of the proposed project.

Naturally Occurring Asbestos
The proposed project site is in Riverside County, which is among the counties found to have serpentine and ultramafic rock in their soils (California Department of Conservation 2023). However, according to the California Geological Survey, no such rock has been identified in the project vicinity.

Therefore, the potential risk for naturally occurring asbest os during project construction is small and less than significant.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 36 Construction Emissions Conclusions
Table I shows that daily regional construction emissions would not exceed the daily thresholds of any criteria pollutant emission thresholds established by SCAQMD. Table J shows that construction operations would not exceed the LSTs. Thus, during construction, there would be no significant impacts.

LONG‐TERM OPERATIONAL AIR QUALITY IMPACTS
Long‐term air pollutant emission impacts are those associated with mobile sources (e.g., vehicle trips), energy sources (e.g., electricity), and area sources (e.g., architectural coatings and the use of landscape maintenance equipment) related to the proposed project.

PM10 emissions result from running exhaust, tire and brake wear, and the entrainment of dust into the atmosphere from vehicles traveling on paved roadways. Entrainment of PM10 occurs when vehicle tires pulverize small rocks and pavement, and the vehicle wakes generate airborne dust. The contribution of tire and brake wear is small compared to the other PM emission processes.

Gasoline‐powered engines have small rates of PM emissions compared with diesel‐powered vehicles.

Energy source emissions result from activities in buildings for which electricity is used. The quantity of emissions is the product of usage intensity (i.e., the amount of electricity) and the emission factor of the fuel source. The primary sources of energy demand for the proposed project would include building mechanical systems (e.g., heating and air conditioning, lighting) an d plug‐in electronics (e.g., refrigerators or computers). Greater building or appliance efficiency reduces the amount of energy for a given activity and thus lowers the resultant emissions. The emission factor is determined by the fuel source, with cleaner energy sources, like renewable energy, producing fewer emissions than conventional sources. As identified in the methodology section above , where project‐specific data were not available, default assumptions (e.g., energy usage, water usage, and solid waste generation) from CalEEMod were used to estimate project emissions. The CalEEMod Summary Report is included in Appendix A.

Typically, area source emissions consist of direct sources of air emissions located at the project site, including architectural coatings and the use of landscape maintenance equipment. Area source emissions associated with the project would include emissions from the use of architectural coatings, consumer products, and landscaping equipment. This analysis assumes that the proposed project would not include any wood burning stoves or fireplaces.

Long‐term operation emissions associated with the proposed project were calculated using CalEEMod. Tr
ip generation rates used in CalEEMod for the project were based on the project’s trip generation estimates, which assume the proposed project would typically generate approximately 610 ADT (LSA 2023). Model results are shown in Table K below.

As shown in Tabl
e K, the proposed project would not exceed the SCAQMD significance criteria for daily VOC, NOX, CO, SOX, PM10, or PM2.5 emissions. Therefore, operation of the proposed project would not result in a cumulatively considerable net increase of any criteria pollutant for which the project region is in nonattainment under an applicable NAAQS or CAAQS.

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 37 Table K: Project Operational Emissions
Source Pollutant Emissions (lbs/day)
VOCs NOX CO SOX PM10 PM2.5
Project Area Sources 4 <1 7 <1 <1 <1
Project Energy Sources <1 1 <1 <1 <1 <1
Project Mobile Sources 3 3 25 <1 2 <1
Total Project Emissions 7 4 32 <1 2 1
SCAQMD Thresholds 55 55 550 150 150 55
Exceeds? No No No No No No
Source: Compiled by LSA (January 2023).

Localized Impacts Analysis
By design, the localized impacts analysis only includes on‐site sources; however, the CalEEMod outputs do not separate on‐site and off‐site emissions for operations. It was assumed that all of the area source emissions would occur on site, none of the energy source emissions would occur on site, and a portion of the mobile source emissions would occur on site. Because the default average trip length is between 5.9 miles and 14.7 miles, and the on‐site distance would average less than 1,000 ft, it was assumed that 5 percent of the mobile source emissions would occur on site. Table L shows the portion of the operational emissions that would be emitted on the project site impact
area compared to the LSTs. Table L shows that the localized construction emissions would not result in a locally significant air quality impact.

Table L: Operational Localized Impacts Analysis
Emissions Sources Pollutant Emissions (lbs/day)
NOX CO PM10 PM2.5
On‐Site Emissions 4 8 <1 <1
LST 242 1,380 3 2
Exceeds Threshold? No No No No
Source: Compiled by LSA (January 2023).

Long‐Term Microscale (CO Hot Spot) Analysis
Vehicular trips associated with the proposed project would contribute to congestion at intersections and along roadway segments in the project vicinity. Localized air quality impacts would occur when emissions from vehicular traffic increase as a result of the proposed project. The primary mobile‐ source pollutant of local concern is CO, a direct function of vehicle idling time and, th us, of traffic flow conditions. CO transport is extremely limited. Under normal meteorological conditions, CO PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 38 disperses rapidly with distance from the source. However, under certain extreme meteorological conditions, CO concentrations near a congested roadway or intersection may reach unhealthful levels, affecting local sensitive receptors (e.g., residents, schoolchildren, the elderly, and hospital patients). Typically, high CO concentrations are associated with roadways or intersections operating at unacceptable levels of service or with extremely high traffic volumes. In areas with high ambient background CO concentrations, modeling is recommended to determine a project’s effect on local CO levels.

An assessment of project‐related impacts on localized ambient air quality requires that future ambient air quality levels be projected. Ambient CO levels monitored at the Ru bidoux Monitoring Station, the closest station with complete monitored CO data, showed a highest recorded 1‐hour concentration of 2.1 ppm (the State standard is 20 ppm) and a highest 8‐hour concentration of 1.8 ppm (the State standard is 9 ppm) during the past 3 years (Table E). Th e highest CO concentrations would normally occur during peak traffic hours; hence, CO impacts calculated under peak traffic conditions represent a worst‐case analysis.

Given the extremely low level of CO concentrations in the project area, and minor traffic impact increases at affected intersections, project‐related vehicles are not expected to contribute significant
ly to result in the CO concentrations exceeding the State or federal CO standards. Because no CO hot spots would occur, there would be no project‐related impacts on CO concentrations.

Odors
SCAQMD addresses odor criteria within the CEQA Air Quality Handbook. The district has not established a rule or standard regarding odor emissions. Instead, the district has a nuisance rule:
“Any project with the potential to frequently expose members of the public to objectionable odors should be deemed to have a significant impact.” Land uses and industrial operations that are associated with odor complaints include agricultural uses, wastewater treatment plants, food‐
processing plants, chemical plants, composting, refineries, landfills, dairies, and fiberglass molding.

The proposed project would not fall under any of these categories.

City regulations require trash storage areas to be in an enclosed area to limit air circulation, an d through adherence to City regulations, odors from the trash storage areas would be minimal. No sources of objectionable odors have been identified for the proposed project. Therefore, the proposed project would not result in other emissions (such as those leading to odors) adversely affecting a substantial nu
mber of people.

GREENHOUSE GAS EMISSIONS
The proposed project would generate GHG emissions during both construction and operational phases of the proposed project, as discussed below.

Construction Greenhouse Gas Emissions
Construction activities associated with the proposed project would produce combustion emissions from various sources. During construction, GHGs would be emitted through the operation of construction equipment and from worker and builder supply vendor vehicles, each of which typically use fossil‐based fuels to operate. The combustion of fossil‐based fuels creates GHGs such as CO2, PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 39 CH4, and N2O. Furthermore, CH4 is emitted during the fueling of heavy equipment. Exhaust emissions from on‐site construction activities would vary daily as construction activity levels change.

The SCAQMD does not have an adopted threshold of significance for construction‐related GHG emissions. However, lead agencies are required to quantify and disclose GHG emissions that would occur during construction. SCAQMD recommends am
ortizing GHG emissions over the life of the
project based on the total GHG emissions for construction activities divided by the project life (i.e., 30 years) then adding that number to the annual operational phase GHG emissions.

CalEEMod was used to calculate emissions from on‐site construction equipme nt and emissions from worker and vehicle trips to the site. Construction of the proposed project is anticipated to begin in January 2024 and be completed in 2025. During construction, approximately 20 cy of soil would be cut and 12,700 cy would be filled, for a net 12,680 cy of soil to be impo rted. This analysis utilizes CalEEMod defaults for construction worker, vendor, haul trips, and construction equipment.

Table M presents the estimated GHG emissions by each calendar year and amortized emissions for the proposed project.

Table M: Project Construction Greenhouse Gas Emissions
Construction Phase GHG Emissions (MT CO2e)
2024 542
2025 49
Total Project Construction GHG Emissions 591
Construction Emissions Amortized over 30 years 20
Source: Compiled by LSA Associates, Inc. (January 2023).

Note: Numbers may appear to not sum correctly due to rounding.

GHG = greenhouse gas
MT CO2e = metric tons of carbon dioxide equivalent

As indicated in Table M, project construction would result in total emissions of 591 MT CO2e, which would be amortized to an annual rate of 20 MT CO2e over 30 years.

Operational Greenhouse Gas Emissions
Long‐term operation of the proposed project would generate GHG emissions from area, mobile, waste, and water sources as well as indirect emissions from sources associated with energy consumption. Mobile‐source GHG emissions would include project‐generated vehicle trips associated with trips to the proposed project. Area‐source emissions would be associated with activities such as
landscaping and maintenance on the project site, and other sources. Waste source emissions generated by the proposed project include energy generated by landfilling and other methods of disposal related to transporting and managing project‐generated waste. In addition, water source emissions associated with the proposed project are generat ed by water supply and conveyance, water treatment, water distribution, and wastewater treatment.

CalEEMod was used to calculate the long‐term operational emissions associated with the project.

The analysis was conducted using land use codes Apartments Low Rise and Parking Lot.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 40 Table N shows the calculated GHG emissions for the proposed project. Motor vehicle emissions are the largest source of GHG emissions for the project at approximately 58 percent of the project total.

Energy use is the next largest category at approximately 38 percent. Water and waste are each about 2 percent of the total emissions. Area sources are less than 1 percent of the total emissions.

Table N: Operational Greenhouse Gas Emissions
Emission Type Operational Emissions (MT/yr) Percentage of Total CO2 CH4 N2O CO2e
Area Source 2 <1 0 2 <1
Energy Source 575 <1 <1 576 38
Mobile Source 860 <1 <1 875 58
Waste Source 8 1 0 28 2
Water Source 17 <1 <1 22 2
Total Operational Emissions 1,503 ‐
Amortized Construction Emissions 20 ‐
Total Annual Emissions 1,523 ‐
SCAQMD Threshold 3,000
Exceeds Threshold? No
Source: Compiled by LSA (March 2023).

Note: values may appear incorrect due to rounding.

CH4 = methane
CO2 = carbon dioxide
CO2e = carbon dioxide equivalent
GHG = greenhouse Gas
MT/yr = metric tons per year
N2O = nitrous oxide
SCAQMD = South Coast Air Quality Management District

As shown in Table N, the project would result in approximately 1,523 MT CO2e/yr. This is less than SCAQMD’s threshold of 3,000 MT CO2e/yr.

Consistency with Greenhouse Gas Reduction Plans
The California Climate Action Team and CARB have developed several reports to achieve the State’s GHG targets that rely on voluntary actions of California businesses, local government and community groups, and State incentive and regulatory programs. The CARB published the 2022 Scoping Plan for Achieving Carbon Neutrality (Scoping Plan), in which strategies are identified for reducing Calif
ornia’s emissions to the levels proposed in EO S‐3‐05 and AB 32.

The adopted Scoping Plan includes proposed GHG reductions from direct regulations, alternative compliance mechanisms, monetary and non‐monetary incentives, voluntary actions, and market‐ based mechanisms such as cap‐and‐trade systems.

The proposed project would be consistent wi th the City’s RRG‐CAP and RRG‐EPAP through measures implemented to enhance energy efficiency for transportation and land use, waste reduction, and water conservation as required under the latest California Building Code, which in turn would reduce GHG emissions.

In summary, the development of the proposed project would not hinder the Cit y’s goal to meet the targets outlined in the RRG‐EPAP and RRG‐CAP, and would be below the SCAQMD’s GHG threshold of 3,000 MT CO2e/yr. The proposed project would not conflict with plans, policies, or regulations PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023
M ADISON F LATS P ROJECT
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P:\GBC2201 Madison F
lats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 41 adopted for the purpose of reducing GHG emissions; therefore, neither scenario of the proposed project would result in a significant GHG impact.

ENERGY
The proposed project would increase the demand for electricity and gasoline compared to the existing condition of the site. The discussion and analysis provided below is based on the data included in the CalEEMod output, which is included as Attachment A.

Construction‐Period Energy Use
The anticipated construction schedule assumes that the proposed project would be built over approximately 13 months. The proposed project would require site preparation, grading, building construction, architectural coating, and paving during construction.

Construction of the proposed project would require energy for the manufacture and transportation of building materials and for preparation of the site for grading activities and building construction.

Petroleum fuels (e.g., diesel and gasoline) would be the primary sources of energy for these activities.

Construction activities are not anticipated to result in an inefficient use of energy because gasoline and diesel fuel would be supplied by construction contractors who would conserve the use of their supplies to minimize their costs on the proposed project. Energy usage on the project site during construction would be temporary in nature and would be relatively small in comparison to the State’s available energy sources. Therefore, as the threshold is:
 Result in a potentially significant environmental impact due to wasteful, inefficient, or unnecessary consumption of energy resources during project construction or operation
construction energy impacts would not be wasteful, inefficient, or include unnecessary consumption and thus be less than significant, and no mitigation would be required.

Operational Energy Use
Energy use includes both direct and indirect sources of emissions. Direct use includes on‐site electricity usage for heating, lighting, appliances, etc., while indirect sources include electricity generated by off‐site power plants. Assuming the new Riverside ordinance (i.e., Title 16, Chapter

16.24 Electrification of New Buildings) would apply to all the project buildings, CalEEMod was modified to not include any natural gas use, and the electricity use increased based on the energy of 1 kWh equaling 3,412 BTU (EIA n.d.).

CalEEMod divides building electricity use into uses that are subject to Title 24 standards and those that are not. Title 24 uses include the major building envelope systems covered by Part 6 (California Energy Code) of Title 24 (e.g., space heating, space cooling, water heating, ventilation, outdoor lighting, and some indoor lighting). Non‐Ti tle 24 uses include all other end uses (e.g., appliances, electronics, and other miscellaneous plug‐in uses).

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 42 Table O shows the estimated potential increased electricity, gasoline, and diesel demand associated with the proposed project. The electricity rates are from the CalEEMod analysis, while the gasoline and diesel rates are based on the traffic analysis in conjunction with USDOT fuel efficiency data (see Appendix B).

Table O: Estimated Annual Energy Use of the Proposed Project Land Use Electricity Use (kWh/yr) Gasoline (gal/yr) Diesel (gal/yr) Residential 1,430,278 82,020 58,830
Parking 21,636
Source: Compiled by LSA (March 2023).
gal/yr = gallons per year
kBTU/yr = thousand British thermal units per year
kWh/yr = kilowatt‐hours per year

As shown in Table O, the estimated potential increased electricity demand associated with the proposed project would be 1,430,278 kWh per year. In 2020, California consumed approximately 277,750 gigawatt‐hours (GWh) or 277,750,000,000 kWh. Of this total, Riverside County consumed 16,857.9 GWh or 16,857,930,966 kWh (CEC n.d.‐a). Therefore, electricity demand associated with the proposed project would be less than 0.01 percent of Riverside County’s tota l electricity demand.

Furthermore, the proposed project would result in energy usage associated with gasoline and diesel to fuel project‐related trips. The average fuel economy for light‐duty vehicles (automobiles, pickups, vans, and sport utility vehicles) in the United States has steadily in creased, from about 14.9 mpg in 1980 to 22.9 mpg in 2020 (USDOT 2021). The average fuel economy for heavy‐duty trucks in the United States has also steadily increased, from 5.7 mpg in 2013 to a projected 8.0 mpg in 2022 (CEC 2015).

Using the EPA gasoline fuel econo
my estimates for 2020, the California diesel fuel economy estimates for 2021, and the traffic data from the project traffic analyses, the proposed project would result in the annual consumption of 82,020 gallons of gasoline and 58,830 gallons of diesel fuel. In 2019, vehicles in California consumed approximately 15.6 billion gallons of gasoline and 3.8 billion gallons of diesel fuel (CEC 2015). Therefore, gasoline and diesel demand generated by vehicle trips associated with the proposed project would be a minimal fraction of gasoline and diesel fuel consumption in California and, by extension, in Riverside County.

In addition, veh icles associated with trips to and from the project site would be subject to fuel economy and efficiency standards, which are applicable throughout the State. These statistics do not include the increasing use of electric vehicles. As such, the fuel efficiency of vehicles associated with project operations would increase throughout the life of the proposed project. Therefore, implemen
tation of the proposed project would not result in a substantial increase in transportation‐ related energy uses.

Energy Use Summary
As described above, the proposed project would not result in the wasteful, inefficient, or unnecessary consumption of fuel or energy and would incorporate renewable energy or energy PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 43 efficiency measures into building design, equipment uses, and transportation. Impacts would be less than significant, and no mitigation measures would be necessary.

Consistency with State and Local Plans for Renewable Energy and Energy Efficiency As indicated above, energy usage on the project site during construction would be temporary in nature. In addition, ener gy usage associated with operation of the proposed project would be relatively small in comparison to the State’s available energy sources and energy impacts would be negligible at the regional level. Because California’s energy conservation planning actions are conducted at a regional level and because the project’s total impacts to regional energy supplie s would be minor, the proposed project would not conflict with California’s energy conservation plans as described in the CEC’s 2021 Integrated Energy Policy Report (CEC 2022). In addition, the proposed project would comply with Title 24, the California Green Building Standards Code (CALGreen), and City of Riverside Ordinan ce 16.24. Thus, as shown above, the proposed project would avoid or reduce the inefficient, wasteful, and unnecessary consumption of energy and would not result in any irreversible or irretrievable commitments of energy. Therefore, the proposed project would not result in the wasteful, inefficient, or unnecessary consumption of energy resources during project construction or operation. Impacts would be less than significant, and no mitigation measures would be necessary.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

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P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 45 CONCLUSION
Based on the analysis presented above, the construction and operational emissions associated with the proposed project would not exceed SCAQMD established significance thresholds. The proposed project is not expected to produce significant localized emissions that would affect nearby sensitive receptors. The proposed project would also not result in objectionable odors affecting a substantial numbe
r of people. The GHG emissions associated with the construction and operation of the proposed project would not hinder the City’s goal to meet the targets outlined in the RRG‐EPAP and RRG‐CAP and would be below the SCAQMD’s GHG threshold of 3,000 MT CO2e/yr and therefore would not be cumulatively considerable. The proposed project would also not result in the wasteful, inefficient, or unnecessary consumption of energy resources. No mitigation measures are required.

In summary, the development of the proposed project would not conflict with plans, policies, or regulations adopted for the purpose of reducing GHG emissions. Therefore, the proposed project would not result in a significant GHG impact.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

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PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 47 REFERENCES

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PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

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Propper, Ralph, Patrick Wong, Son Bui, Jeff Austin, William Vance, Álvaro Alvarado, Bart Croes, and Dongmin Luo. 2015. Ambient and Emission Trends of Toxic Air Contaminants in California.

Website: pubs.acs.org/doi/full/10.1021/acs.est.5b02766 (accessed January 2023).

South Coast Air Quality Ma nagement District (SCAQMD). 1976. Rule 402 – Nuisance. May 7.

Website: www.aqmd.gov/docs/default‐source/rule‐book/rule‐iv/rule‐402.pdf (accessed January 2023).
_____. 1993. CEQA Air Quality Handbook. November. Website: www.aqmd.gov/home/rules‐ compliance/ceqa/air‐quality‐analysis‐handbook/ceqa‐air‐quality‐handbook‐(1993) (accessed January 2023).
_____. 2005. Rule 403. Fugitive Dust. Website: www.aqmd.gov/docs/default‐source/rule‐book/rule‐ iv/rule‐403.pdf (accessed January 2023).
_____. 2008. Final Locali
zed Significance Threshold Methodology. July. Website:
www.aqmd.gov/docs/default‐source/ceqa/handbook/localized‐significance‐ thresholds/final‐lst‐methodology‐document.pdf (accessed January 2023).

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 49 _____. 2016. Advisory Notice on Rule 1113. Website: www.aqmd.gov/docs/default‐source/rule‐ book/reg‐xi/r1113.pdf (accessed January 2023).
_____. 2019. South Coast AQMD Air Quality Significance Thresholds. Website:
www.aqmd.gov/docs/default‐source/ceqa/handbook/scaqmd‐air‐quality‐significance‐ thresholds.pdf (accessed January 2023).
_____. 2022. Final 2022 Air Quality Management Plan. February. Website:
www.aqmd.gov/home/air‐quality/clean‐air‐plans/air‐quality‐mgt‐plan (accessed January 2023).

United States Environm
ental Protection Agency (EPA). 2010. Methane and Nitrous Oxide Emissions from Natural Sources. Website: nepis.epa.gov/Exe/ZyPDF.cgi/P100717T.PDF? Dockey=P100717T.PDF (accessed January 2023).
_____. 2022a. Air Data: Air Quality Data Collected at Outdoor Monitors across the US. Website:
www.epa.gov/outdoor‐air‐quality‐data (accessed January 2023). _____. 2022c. Nonattainment Areas for Criteria Pollutants (Green Book). Website:
www.epa.go
v/green‐book (accessed January 2023).

United Nations Environment Programme (UNEP). 2007. Buildings and Climate Change: Status, Challenges and Opportunities. Paris, France. Website: wedocs.unep.org/handle/

20.500.11822/7783 (accessed January 2023).

United States National Oceanic and Atmospheric Administration (NOAA). 2020. Climate Change:

Atmospheric Carbon Dioxide. Website: www.climate.gov/news‐features/understanding‐ climate/climate‐change‐atmospheric‐carbon‐ dioxide (accessed January 2023).

Western Regional Climate Center. 2023. Website: wrcc.dri.edu/summary/Climsmsca.html (accessed January 2023).

ONLINE RESOURCES
California Air Resources Board (CARB). n.d.‐a. Common Air Pollutants. Website:
www.arb.ca.gov/resources/common‐air‐pollutants?corr (accessed January 2023). _____. n.d.‐b. CARB Tractor‐Trailer Greenhouse Gas Regulation. Website: www.arb.ca.gov/our‐ work/programs/ttghg (accessed January 2023).
_____. n.d.‐c. iADAM: Air Quality Data Statistics. Website: www.arb.ca.gov/adam (accessed January 2023).

California Attorney General. n.d. Warehouse Projects: Best Practices and Mitigation Measures to Comply with the California Environment
al Quality Act.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23) 50 California Energy Commission (CEC). 2015. Medium and Heavy‐Duty Truck Prices and Fuel Economy 2013–2026. Website: efiling.energy.ca.gov/getdocument.aspx?tn=206180 (accessed January 2023).
–––––. 2022. 2021 Integrated Energy Policy Report. California Energy Commission. Docket Number:
21‐IEPR‐01. Website: www.energy.ca.gov/data‐reports/reports/integrated‐energy‐policy‐ report/2021‐integrated‐energy‐policy‐report (accessed January 2023). –––––. n.d.‐a. Electricity Consumpt ion by County. Website: www.ecdms.energy.ca.gov/ elecbycounty.aspx (accessed January 2023).
–––––. n.d.‐b. Gas Consumption by County. Website: www.ecdms.energy.ca.gov/gasbycounty.aspx (accessed January 2023).

South Coast Air Quality Management District (SCAQMD). 1993. CEQA Air Quality Handbook. April.

Website: www.aqmd.gov/home/rules‐compliance/ceqa/air‐quality‐analysis‐ handbook/ceqa‐air‐quality‐handbook‐(1993) (accessed January 2023). _____. n.d.‐a. Air Quality Analy sis Handbook. Website: www.aqmd.gov/home/rules‐ compliance/ceqa/air‐quality‐analysis‐handbook (accessed January 2023). _____. n.d.‐b. National Ambient Air Quality Standards (NAAQS) and California Ambient Air Quality Standards (CAAQS) Attainment Status for South Coast Air Basin. Website:
www.aqmd.gov/docs/default‐source/clean‐air‐plans/air‐quality‐management‐plans/naaqs‐ caaqs‐feb2016.pdf (accessed January 2023).
_____. n.d.‐
c. South Coast Air Basin Ozone Trend. Website: www.aqmd.gov/docs/default‐source/air‐ quality/south‐coast‐air‐basin‐smog‐trend‐ozone‐chart.pdf (accessed January 2023). _____. n.d.‐d. South Coast AQMD Modeling Guidance for AERMOD. Website: www.aqmd.gov/ home/air‐quality/meteorological‐data/modeling‐guidance (accessed January 2023). _____. n.d.‐d. South Coast Health Studies. Website: www.aqmd.gov/home/air‐quality/air‐quality‐ studies/health‐
studies (accessed January 2023).

United States Department of Transportation (USDOT). 2021. Table 4‐23: Average Fuel Efficiency of U.S. Light Duty Vehicles. Website: www.bts.gov/content/average‐fuel‐efficiency‐us‐light‐ duty‐vehicles (accessed January 2023).

United States Energy Information Administration (EIA). n.d. Units and Calculators Explained, Energy Conversion Calculators. Website: www. eia.gov/energyexplained/units‐and‐ calculators/energy‐conversion‐calculators.php (accessed March 2023).

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23)

APPENDIX A

CALEEMOD SUMMARY REPORT

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23)

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Madison Flats Residential (GBC2201) Custom Report
Table of Contents

1. Basic Project Information

1.1. Basic Project Information

1.2. Land Use Types

1.3. User-Selected Emission Reduction Measures by Emissions Sector

2. Emissions Summary

2.1. Construction Emissions Compared Against Thresholds

2.2. Construction Emissions by Y ear, Unmitigated

2.4. Operations Emissions Compared Against Thresholds

2.5. Operations Emissions by Sector, Unmitigated

3. Construction Emissions Details

3.1. Site Preparation (2024) - Unmitigated

3.3. Grading (2024) - Unmitigated

3.5. Building Construction (2024) - Unmitigated

3.7. Building Construction (2025) - Unmitigated
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 2 / 34

3.9. Paving (2025) - Unmitigated

3.11. Architectural Coating (2024) - Unmitigated

3.13. Architectural Coating (2025) - Unmitigated

4. Operations Emissions Details

4.1. Mobile Emissions by Land Use

4.1.1. Unmitigated

4.2. Energy

4.2.1. Electricity Emissions By Land Use - Unmitigated

4.2.3. Natural Gas Emissions By Land Use - Unmitigated

4.3. Area Emissions by Source

4.3.2. Unmitigated

4.4. Water Emissions by Land Use

4.4.2. Unmitigated

4.5. Waste Emissions by Land Use

4.5.2. Unmitigated

4.6. Refrigerant Emissions by Land Use

4.6.1. Unmitigated
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 3 / 34

5. Activity Data

5.1. Construction Schedule

5.2. Off-Road Equipment

5.2.1. Unmitigated

5.3. Construction Vehicles

5.3.1. Unmitigated

5.4. Vehicles

5.4.1. Construction Vehicle Control Strategies

5.5. Architectural Coatings

5.6. Dust Mitigation

5.6.1. Construction Earthmoving Activities

5.6.2. Construction Earthmoving Control Strategies

5.7. Construction Paving

5.8. Construction Electricity Consumption and Emissions Factors

5.9. Operational Mobile Sources

5.9.1. Unmitigated

5.10. Operational Area Sources
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 4 / 34

5.10.1. Hearths

5.10.1.1. Unmitigated

5.10.2. Architectural Coatings

5.10.3. Landscape Equipment

5.11. Operational Energy Consumption

5.11.1. Unmitigated

5.12. Operational Water and Wastewater Consumption

5.12.1. Unmitigated

5.13. Operational Waste Generation

5.13.1. Unmitigated

5.14. Operational Refrigeration and Air Conditioning Equipment

5.14.1. Unmitigated

8. User Changes to Default Data
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 5 / 34

1. Basic Project Information

1.1. Basic Project Information
Data Field Value
Project Name Madison Flats Residential (GBC2201)
Lead Agency City of Riverside
Land Use Scale Project/site
Analysis Level for Defaults County
Windspeed (m/s) 2.20
Precipitation (days) 5.80
Location 33.93260902559966, -117.40557006554953
County Riverside-South Coast
City Riverside
Air District South Coast AQMD
Air Basin South Coast
TAZ 5418
EDFZ 11
Electric Utility City of Riverside
Gas Utility Southern California Gas

1.2. Land Use Types
Land Use Subtype Size Unit Lot Acreage Building Area (sq ft) Landscape Area (sq ft)
Special Landscape
Area (sq ft)
Population Description
Apartments Low
Rise
121 Dwelling Unit 3.55 128,953 43,600 0.00 391 —
P a r k i n g L o t 6 3 . 0S p a c e 0 . 5 70 . 0 00 . 0 00 . 0 0— — PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 6 / 34

1.3. User-Selected Emission Reduction Measures by Emissions Sector No measures selected

2. Emissions Summary

2.1. Construction Emissions Compared Against Thresholds Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Un/Mit. ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
—————————————————
Unmit. 8.61 13.1 23.1 0.03 0.54 1.48 2.01 0.49 0.35 0.84 — 4,437 4,437 0.17 0.13 7.10 4,488 Daily,
Winter
(Max)
—————————————————
Unmit. 8.58 36.1 34.0 0.12 1.60 7.89 9.49 1.47 3.99 5.47 — 17,084 17,084 0.38 2.27 0.79 17,772 Average
Daily
(Max)
—————————————————
Unmit. 2.93 11.0 15.0 0.02 0.45 1.56 2.01 0.42 0.56 0.97 — 3,229 3,229 0.12 0.13 1.97 3,272 Annual
(Max)
—————————————————
Unmit. 0.54 2.01 2.73 < 0.005 0.08 0.28 0.37 0.08 0.10 0.18 — 535 535 0.02 0.02 0.33 542

2.2. Construction Emissions by Y ear, Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Ye a r ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily -
Summer
(Max)
—————————————————
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 7 / 34
2024 8.61 13.1 23.1 0.03 0.54 1.48 2.01 0.49 0.35 0.84 — 4,437 4,437 0.17 0.13 7.10 4,488 Daily -
Winter
(Max)
—————————————————
2024 8.58 36.1 34.0 0.12 1.60 7.89 9.49 1.47 3.99 5.47 — 17,084 17,084 0.38 2.27 0.79 17,772 2025 8.43 12.3 20.4 0.03 0.47 1.48 1.94 0.43 0.35 0.78 — 4,282 4,282 0.17 0.13 0.17 4,326 Average
Daily
—————————————————
2024 2.93 11.0 15.0 0.02 0.45 1.56 2.01 0.42 0.56 0.97 — 3,229 3,229 0.12 0.13 1.97 3,272 2025 0.78 0.93 1.54 < 0.005 0.04 0.09 0.13 0.03 0.02 0.06 — 291 291 0.01 0.01 0.17 294 A n n u a l —————————————————
2024 0.54 2.01 2.73 < 0.005 0.08 0.28 0.37 0.08 0.10 0.18 — 535 535 0.02 0.02 0.33 542 2025 0.14 0.17 0.28 < 0.005 0.01 0.02 0.02 0.01 < 0.005 0.01 — 48.3 48.3 < 0.005 < 0.005 0.03 48.7

2.4. Operations Emissions Compared Against Thresholds
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Un/Mit. ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
—————————————————
Unmit. 6.52 2.79 31.7 0.06 0.05 2.00 2.05 0.05 0.36 0.40 57.7 9,706 9,763 6.17 0.31 24.0 10,034 Daily,
Winter
(Max)
—————————————————
Unmit. 5.70 2.92 20.9 0.06 0.05 2.00 2.04 0.04 0.36 0.40 57.7 9,315 9,373 6.18 0.32 1.52 9,624 Average
Daily
(Max)
—————————————————
Unmit. 5.82 2.71 24.1 0.05 0.04 1.79 1.83 0.04 0.32 0.36 57.7 8,771 8,829 6.15 0.29 9.85 9,080 Annual
(Max)
—————————————————
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 8 / 34
Unmit. 1.06 0.49 4.39 0.01 0.01 0.33 0.33 0.01 0.06 0.07 9.55 1,452 1,462 1.02 0.05 1.63 1,503

2.5. Operations Emissions by Sector, Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Sector ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
—————————————————
Mobile 2.92 2.73 24.8 0.06 0.05 2.00 2.04 0.04 0.36 0.40 — 6,123 6,123 0.25 0.27 23.1 6,233 Area 3.60 0.07 6.85 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.00 18.4 18.4 < 0.005 < 0.005 — 18.4 Energy 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 3,473 3,473 0.13 0.02 — 3,481 Water — — — — — — — — — — 9.43 90.9 100 0.97 0.02 — 132 W a s t e ——————————4 8 . 2 0 . 0 0 4 8 . 2 4 . 8 2 0 . 0 0 —1 6 9 R e f r i g . ———————————————0 . 9 2 0 . 9 2
Total 6.52 2.79 31.7 0.06 0.05 2.00 2.05 0.05 0.36 0.40 57.7 9,706 9,763 6.17 0.31 24.0 10,034 Daily,
Winter
(Max)
—————————————————
Mobile 2.72 2.92 20.9 0.06 0.05 2.00 2.04 0.04 0.36 0.40 — 5,751 5,751 0.26 0.28 0.60 5,841 Area 2.98 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 Energy 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 3,473 3,473 0.13 0.02 — 3,481 Water — — — — — — — — — — 9.43 90.9 100 0.97 0.02 — 132 W a s t e ——————————4 8 . 2 0 . 0 0 4 8 . 2 4 . 8 2 0 . 0 0 —1 6 9 R e f r i g . ———————————————0 . 9 2 0 . 9 2
Total 5.70 2.92 20.9 0.06 0.05 2.00 2.04 0.04 0.36 0.40 57.7 9,315 9,373 6.18 0.32 1.52 9,624 Average
Daily
—————————————————
Mobile 2.41 2.67 19.4 0.05 0.04 1.79 1.83 0.04 0.32 0.36 — 5,194 5,194 0.23 0.25 8.93 5,285 Area 3.41 0.05 4.69 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.00 12.6 12.6 < 0.005 < 0.005 — 12.6 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 9 / 34
Energy 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 3,473 3,473 0.13 0.02 — 3,481 Water — — — — — — — — — — 9.43 90.9 100 0.97 0.02 — 132 W a s t e ——————————4 8 . 2 0 . 0 0 4 8 . 2 4 . 8 2 0 . 0 0 —1 6 9 R e f r i g . ———————————————0 . 9 2 0 . 9 2
Total 5.82 2.71 24.1 0.05 0.04 1.79 1.83 0.04 0.32 0.36 57.7 8,771 8,829 6.15 0.29 9.85 9,080 A n n u a l —————————————————
Mobile 0.44 0.49 3.54 0.01 0.01 0.33 0.33 0.01 0.06 0.06 — 860 860 0.04 0.04 1.48 875 Area 0.62 0.01 0.86 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.00 2.08 2.08 < 0.005 < 0.005 — 2.09 Energy 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 575 575 0.02 < 0.005 — 576 W a t e r ——————————1 . 5 6 1 5 . 0 1 6 . 6 0 . 1 6 < 0 . 0 0 5 —2 1 . 8 Waste — — — — — — — — — — 7.99 0.00 7.99 0.80 0.00 — 27.9 R e f r i g . ———————————————0 . 1 5 0 . 1 5
Total 1.06 0.49 4.39 0.01 0.01 0.33 0.33 0.01 0.06 0.07 9.55 1,452 1,462 1.02 0.05 1.63 1,503

3. Construction Emissions Details

3.1. Site Preparation (2024) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e O n s i t e —————————————————
Daily,
Summer
(Max)
—————————————————
Daily,
Winter
(Max)
—————————————————
Off-Road
Equipment

3.65 36.0 32.9 0.05 1.60 — 1.60 1.47 — 1.47 — 5,296 5,296 0.21 0.04 — 5,314 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 10 / 34
———————3.943.94—7.677.67—————Dust
From
Material
Movement
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
—————————————————
Off-Road
Equipment

0.29 2.86 2.62 < 0.005 0.13 — 0.13 0.12 — 0.12 — 421 421 0.02 < 0.005 — 422 Dust
From
Material
Movement
—————0 . 6 1 0 . 6 1 —0 . 3 1 0 . 3 1 ———————
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 A n n u a l —————————————————
Off-Road
Equipment

0.05 0.52 0.48 < 0.005 0.02 — 0.02 0.02 — 0.02 — 69.7 69.7 < 0.005 < 0.005 — 69.9 Dust
From
Material
Movement
—————0 . 1 1 0 . 1 1 —0 . 0 6 0 . 0 6 ———————
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — —————————
Daily,
Summer
(Max)
—————————————————
Daily,
Winter
(Max)
—————————————————
Worker 0.08 0.10 1.10 0.00 0.00 0.23 0.23 0.00 0.05 0.05 — 231 231 0.01 0.01 0.03 234 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 11 / 34
Average
Daily
—————————————————
Worker 0.01 0.01 0.09 0.00 0.00 0.02 0.02 0.00 < 0.005 < 0.005 — 18.6 18.6 < 0.005 < 0.005 0.03 18.9 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 A n n u a l —————————————————
Worker < 0.005 < 0.005 0.02 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 — 3.08 3.08 < 0.005 < 0.005 0.01 3.13 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00

3.3. Grading (2024) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e O n s i t e —————————————————
Daily,
Summer
(Max)
—————————————————
Daily,
Winter
(Max)
—————————————————
Off-Road
Equipment

1.90 18.2 18.8 0.03 0.84 — 0.84 0.77 — 0.77 — 2,958 2,958 0.12 0.02 — 2,969 Dust
From
Material
Movement
—————2 . 7 9 2 . 7 9 —1 . 3 4 1 . 3 4 ———————
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
—————————————————
Off-Road
Equipment

0.04 0.40 0.41 < 0.005 0.02 — 0.02 0.02 — 0.02 — 64.8 64.8 < 0.005 < 0.005 — 65.1 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 12 / 34
Dust
From
Material
Movement
—————0 . 0 6 0 . 0 6 —0 . 0 3 0 . 0 3 ———————
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 A n n u a l —————————————————
Off-Road
Equipment

0.01 0.07 0.08 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 10.7 10.7 < 0.005 < 0.005 — 10.8 Dust
From
Material
Movement
—————0 . 0 1 0 . 0 1 —0 . 0 1 0 . 0 1 ———————
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — —————————
Daily,
Summer
(Max)
—————————————————
Daily,
Winter
(Max)
—————————————————
Worker 0.07 0.09 0.95 0.00 0.00 0.20 0.20 0.00 0.05 0.05 — 198 198 0.01 0.01 0.02 201 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.21 16.4 3.86 0.09 0.26 3.60 3.86 0.26 1.01 1.27 — 13,927 13,927 0.25 2.24 0.76 14,603 Average
Daily
—————————————————
Worker < 0.005 < 0.005 0.02 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 — 4.40 4.40 < 0.005 < 0.005 0.01 4.47 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling < 0.005 0.36 0.08 < 0.005 0.01 0.08 0.08 0.01 0.02 0.03 — 305 305 0.01 0.05 0.28 320 A n n u a l —————————————————
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 — 0.73 0.73 < 0.005 < 0.005 < 0.005 0.74 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 13 / 34
Hauling < 0.005 0.07 0.02 < 0.005 < 0.005 0.01 0.02 < 0.005 < 0.005 0.01 — 50.5 50.5 < 0.005 0.01 0.05 53.0

3.5. Building Construction (2024) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e O n s i t e —————————————————
Daily,
Summer
(Max)
—————————————————
Off-Road
Equipment

1.20 11.2 13.1 0.02 0.50 — 0.50 0.46 — 0.46 — 2,398 2,398 0.10 0.02 — 2,406 Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
—————————————————
Off-Road
Equipment

1.20 11.2 13.1 0.02 0.50 — 0.50 0.46 — 0.46 — 2,398 2,398 0.10 0.02 — 2,406 Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
—————————————————
Off-Road
Equipment

0.71 6.59 7.70 0.01 0.29 — 0.29 0.27 — 0.27 — 1,408 1,408 0.06 0.01 — 1,412 Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 A n n u a l —————————————————
Off-Road
Equipment

0.13 1.20 1.41 < 0.005 0.05 — 0.05 0.05 — 0.05 — 233 233 0.01 < 0.005 — 234 Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — —————————
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 14 / 34
Daily,
Summer
(Max)
—————————————————
Worker 0.45 0.42 7.27 0.00 0.00 1.14 1.14 0.00 0.27 0.27 — 1,254 1,254 0.05 0.04 4.97 1,273 Vendor 0.01 0.46 0.14 < 0.005 0.01 0.11 0.12 0.01 0.03 0.04 — 402 402 0.01 0.06 1.13 421 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
—————————————————
Worker 0.42 0.50 5.50 0.00 0.00 1.14 1.14 0.00 0.27 0.27 — 1,152 1,152 0.05 0.04 0.13 1,167 Vendor 0.01 0.48 0.14 < 0.005 0.01 0.11 0.12 0.01 0.03 0.04 — 402 402 0.01 0.06 0.03 420 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
—————————————————
Worker 0.25 0.29 3.40 0.00 0.00 0.67 0.67 0.00 0.16 0.16 — 685 685 0.03 0.03 1.26 695 Vendor 0.01 0.28 0.08 < 0.005 < 0.005 0.06 0.07 < 0.005 0.02 0.02 — 236 236 0.01 0.04 0.29 247 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 A n n u a l —————————————————
Worker 0.04 0.05 0.62 0.00 0.00 0.12 0.12 0.00 0.03 0.03 — 113 113 0.01 < 0.005 0.21 115 Vendor < 0.005 0.05 0.02 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 — 39.0 39.0 < 0.005 0.01 0.05 40.9 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00

3.7. Building Construction (2025) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e O n s i t e —————————————————
Daily,
Summer
(Max)
—————————————————
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 15 / 34
—————————————————Daily,
Winter
(Max)
Off-Road
Equipment

1.13 10.4 13.0 0.02 0.43 — 0.43 0.40 — 0.40 — 2,398 2,398 0.10 0.02 — 2,406 Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
—————————————————
Off-Road
Equipment

0.05 0.47 0.59 < 0.005 0.02 — 0.02 0.02 — 0.02 — 108 108 < 0.005 < 0.005 — 108 Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 A n n u a l —————————————————
Off-Road
Equipment

0.01 0.09 0.11 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 17.9 17.9 < 0.005 < 0.005 — 17.9 Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — —————————
Daily,
Summer
(Max)
—————————————————
Daily,
Winter
(Max)
—————————————————
Worker 0.37 0.42 5.08 0.00 0.00 1.14 1.14 0.00 0.27 0.27 — 1,129 1,129 0.05 0.04 0.12 1,143 Vendor 0.01 0.45 0.14 < 0.005 0.01 0.11 0.12 0.01 0.03 0.04 — 396 396 0.01 0.06 0.03 414 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
—————————————————
Worker 0.02 0.02 0.24 0.00 0.00 0.05 0.05 0.00 0.01 0.01 — 51.5 51.5 < 0.005 < 0.005 0.09 52.2 Vendor < 0.005 0.02 0.01 < 0.005 < 0.005 < 0.005 0.01 < 0.005 < 0.005 < 0.005 — 17.8 17.8 < 0.005 < 0.005 0.02 18.7 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 16 / 34
A n n u a l —————————————————
Worker < 0.005 < 0.005 0.04 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 — 8.52 8.52 < 0.005 < 0.005 0.01 8.64 Vendor < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 — 2.95 2.95 < 0.005 < 0.005 < 0.005 3.09 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00

3.9. Paving (2025) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e O n s i t e —————————————————
Daily,
Summer
(Max)
—————————————————
Daily,
Winter
(Max)
—————————————————
Off-Road
Equipment

0.71 6.52 8.84 0.01 0.29 — 0.29 0.26 — 0.26 — 1,351 1,351 0.05 0.01 — 1,355 P a v i n g 0 . 0 8 ————————————————
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
—————————————————
Off-Road
Equipment

0.04 0.32 0.44 < 0.005 0.01 — 0.01 0.01 — 0.01 — 66.6 66.6 < 0.005 < 0.005 — 66.8 P a v i n g < 0 . 0 0 5 ————————————————
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 A n n u a l —————————————————
Off-Road
Equipment

0.01 0.06 0.08 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 11.0 11.0 < 0.005 < 0.005 — 11.1 P a v i n g < 0 . 0 0 5 ————————————————
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 17 / 34
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — —————————
Daily,
Summer
(Max)
—————————————————
Daily,
Winter
(Max)
—————————————————
Worker 0.08 0.10 1.17 0.00 0.00 0.26 0.26 0.00 0.06 0.06 — 259 259 0.01 0.01 0.03 262 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
—————————————————
Worker < 0.005 0.01 0.06 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 — 12.9 12.9 < 0.005 < 0.005 0.02 13.1 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 A n n u a l —————————————————
Worker < 0.005 < 0.005 0.01 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 — 2.14 2.14 < 0.005 < 0.005 < 0.005 2.17 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00

3.11. Architectural Coating (2024) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e O n s i t e —————————————————
Daily,
Summer
(Max)
—————————————————
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 18 / 34
134—<0 . 0 0 50.01134134—0.03—0.030.03—0.03< 0.0051.150.910.14Off-Road Equipment
Architectu
ral
Coatings
6 . 7 3 ————————————————
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
—————————————————
Off-Road
Equipment

0.14 0.91 1.15 < 0.005 0.03 — 0.03 0.03 — 0.03 — 134 134 0.01 < 0.005 — 134 Architectu
ral
Coatings
6 . 7 3 ————————————————
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
—————————————————
Off-Road
Equipment

0.03 0.21 0.27 < 0.005 0.01 — 0.01 0.01 — 0.01 — 31.4 31.4 < 0.005 < 0.005 — 31.5 Architectu
ral
Coatings
1 . 5 8 ————————————————
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 A n n u a l —————————————————
Off-Road
Equipment

0.01 0.04 0.05 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 5.19 5.19 < 0.005 < 0.005 — 5.21 Architectu
ral
Coatings
0 . 2 9 ————————————————
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — —————————
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 19 / 34
Daily,
Summer
(Max)
—————————————————
Worker 0.09 0.08 1.45 0.00 0.00 0.23 0.23 0.00 0.05 0.05 — 251 251 0.01 0.01 0.99 255 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
—————————————————
Worker 0.08 0.10 1.10 0.00 0.00 0.23 0.23 0.00 0.05 0.05 — 230 230 0.01 0.01 0.03 233 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
—————————————————
Worker 0.02 0.02 0.27 0.00 0.00 0.05 0.05 0.00 0.01 0.01 — 54.8 54.8 < 0.005 < 0.005 0.10 55.6 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 A n n u a l —————————————————
Worker < 0.005 < 0.005 0.05 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 — 9.08 9.08 < 0.005 < 0.005 0.02 9.20 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00

3.13. Architectural Coating (2025) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e O n s i t e —————————————————
Daily,
Summer
(Max)
—————————————————
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 20 / 34
—————————————————Daily,
Winter
(Max)
Off-Road
Equipment

0.13 0.88 1.14 < 0.005 0.03 — 0.03 0.03 — 0.03 — 134 134 0.01 < 0.005 — 134 Architectu
ral
Coatings
6 . 7 3 ————————————————
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
—————————————————
Off-Road
Equipment

0.01 0.08 0.11 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 12.8 12.8 < 0.005 < 0.005 — 12.8 Architectu
ral
Coatings
0 . 6 5 ————————————————
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 A n n u a l —————————————————
Off-Road
Equipment
< 0.005 0.02 0.02 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 2.12 2.12 < 0.005 < 0.005 — 2.13 Architectu
ral
Coatings
0 . 1 2 ————————————————
Onsite
truck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — —————————
Daily,
Summer
(Max)
—————————————————
Daily,
Winter
(Max)
—————————————————
Worker 0.07 0.08 1.02 0.00 0.00 0.23 0.23 0.00 0.05 0.05 — 226 226 0.01 0.01 0.02 229 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 21 / 34
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
—————————————————
Worker 0.01 0.01 0.10 0.00 0.00 0.02 0.02 0.00 0.01 0.01 — 21.9 21.9 < 0.005 < 0.005 0.04 22.2 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 A n n u a l —————————————————
Worker < 0.005 < 0.005 0.02 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 — 3.63 3.63 < 0.005 < 0.005 0.01 3.68 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00

4. Operations Emissions Details

4.1. Mobile Emissions by Land Use

4.1.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
—————————————————
Apartmen
ts
Low Rise

2.92 2.73 24.8 0.06 0.05 2.00 2.04 0.04 0.36 0.40 — 6,123 6,123 0.25 0.27 23.1 6,233 Parking
Lot

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Total 2.92 2.73 24.8 0.06 0.05 2.00 2.04 0.04 0.36 0.40 — 6,123 6,123 0.25 0.27 23.1 6,233 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 22 / 34
—————————————————Daily,
Winter
(Max)
Apartmen
ts
Low Rise

2.72 2.92 20.9 0.06 0.05 2.00 2.04 0.04 0.36 0.40 — 5,751 5,751 0.26 0.28 0.60 5,841 Parking
Lot

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Total 2.72 2.92 20.9 0.06 0.05 2.00 2.04 0.04 0.36 0.40 — 5,751 5,751 0.26 0.28 0.60 5,841 A n n u a l —————————————————
Apartmen
ts
Low Rise

0.44 0.49 3.54 0.01 0.01 0.33 0.33 0.01 0.06 0.06 — 860 860 0.04 0.04 1.48 875 Parking
Lot

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 Total 0.44 0.49 3.54 0.01 0.01 0.33 0.33 0.01 0.06 0.06 — 860 860 0.04 0.04 1.48 875

4.2. Energy

4.2.1. Electricity Emissions By Land Use - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
—————————————————
Apartmen
ts
Low Rise
———————————3 , 4 2 2 3 , 4 2 2 0 . 1 3 0 . 0 2 —3 , 4 3 0 Parking
Lot
———————————5 1 . 8 5 1 . 8 < 0 . 0 0 5 < 0 . 0 0 5 —5 1 . 9 T o t a l ———————————3 , 4 7 3 3 , 4 7 3 0 . 1 3 0 . 0 2 —3 , 4 8 1 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 23 / 34
—————————————————Daily,
Winter
(Max)
Apartmen
ts
Low Rise
———————————3 , 4 2 2 3 , 4 2 2 0 . 1 3 0 . 0 2 —3 , 4 3 0 Parking
Lot
———————————5 1 . 8 5 1 . 8 < 0 . 0 0 5 < 0 . 0 0 5 —5 1 . 9 T o t a l ———————————3 , 4 7 3 3 , 4 7 3 0 . 1 3 0 . 0 2 —3 , 4 8 1 A n n u a l —————————————————
Apartmen
ts
Low Rise
———————————5 6 6 5 6 6 0 . 0 2 < 0 . 0 0 5 —5 6 8
Parking
Lot
———————————8 . 5 7 8 . 5 7 < 0 . 0 0 5 < 0 . 0 0 5 —8 . 5 9 T o t a l ———————————5 7 5 5 7 5 0 . 0 2 < 0 . 0 0 5 —5 7 6

4.2.3. Natural Gas Emissions By Land Use - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
—————————————————
Apartmen
ts
Low Rise

0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Parking
Lot

0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Total 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Daily,
Winter
(Max)
—————————————————
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 24 / 34

0.00—0.000.000.000.00—0.00—0.000.00—0.000.000.000.000.00Apartmen ts
Parking
Lot

0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Total 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 0.00 0.00 0.00 0.00 — 0.00 A n n u a l —————————————————
Apartmen
ts
Low Rise

0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Parking
Lot

0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Total 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 0.00 0.00 0.00 0.00 — 0.00

4.3. Area Emissions by Source

4.3.2. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Source ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
—————————————————
Hearths 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 Consume
r
Products
2 . 7 6 ————————————————
Architectu
ral
Coatings
0 . 2 2 ————————————————
Landscap
e
Equipme
nt

0.62 0.07 6.85 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 18.4 18.4 < 0.005 < 0.005 — 18.4 Total 3.60 0.07 6.85 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.00 18.4 18.4 < 0.005 < 0.005 — 18.4 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 25 / 34
Daily,
Winter
(Max)
—————————————————
Hearths 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 Consume
r
Products
2 . 7 6 ————————————————
Architectu
ral
Coatings
0 . 2 2 ————————————————
Total 2.98 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 A n n u a l —————————————————
Hearths 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 Consume
r
Products
0 . 5 0 ————————————————
Architectu
ral
Coatings
0 . 0 4 ————————————————
Landscap
e
Equipme
nt

0.08 0.01 0.86 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 2.08 2.08 < 0.005 < 0.005 — 2.09 Total 0.62 0.01 0.86 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.00 2.08 2.08 < 0.005 < 0.005 — 2.09

4.4. Water Emissions by Land Use

4.4.2. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
—————————————————
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 26 / 34
Apartmen
Low Rise
——————————9 . 4 3 9 0 . 9 1 0 0 0 . 9 7 0 . 0 2 —1 3 2
Parking
Lot
——————————0 . 0 0 0 . 0 0 0 . 0 0 0 . 0 0 0 . 0 0 —0 . 0 0 T o t a l ——————————9 . 4 3 9 0 . 9 1 0 0 0 . 9 7 0 . 0 2 —1 3 2 Daily,
Winter
(Max)
—————————————————
Apartmen
ts
Low Rise
——————————9 . 4 3 9 0 . 9 1 0 0 0 . 9 7 0 . 0 2 —1 3 2
Parking
Lot
——————————0 . 0 0 0 . 0 0 0 . 0 0 0 . 0 0 0 . 0 0 —0 . 0 0 T o t a l ——————————9 . 4 3 9 0 . 9 1 0 0 0 . 9 7 0 . 0 2 —1 3 2 A n n u a l —————————————————
Apartmen
ts
Low Rise
——————————1 . 5 6 1 5 . 0 1 6 . 6 0 . 1 6 < 0 . 0 0 5 —2 1 . 8 Parking
Lot
——————————0 . 0 0 0 . 0 0 0 . 0 0 0 . 0 0 0 . 0 0 —0 . 0 0 T o t a l ——————————1 . 5 6 1 5 . 0 1 6 . 6 0 . 1 6 < 0 . 0 0 5 —2 1 . 8

4.5. Waste Emissions by Land Use

4.5.2. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
—————————————————
Apartmen
ts
Low Rise
——————————4 8 . 2 0 . 0 0 4 8 . 2 4 . 8 2 0 . 0 0 —1 6 9 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 27 / 34
Parking
Lot
——————————0 . 0 0 0 . 0 0 0 . 0 0 0 . 0 0 0 . 0 0 —0 . 0 0 T o t a l ——————————4 8 . 2 0 . 0 0 4 8 . 2 4 . 8 2 0 . 0 0 —1 6 9 Daily,
Winter
(Max)
—————————————————
Apartmen
ts
Low Rise
——————————4 8 . 2 0 . 0 0 4 8 . 2 4 . 8 2 0 . 0 0 —1 6 9 Parking
Lot
——————————0 . 0 0 0 . 0 0 0 . 0 0 0 . 0 0 0 . 0 0 —0 . 0 0 T o t a l ——————————4 8 . 2 0 . 0 0 4 8 . 2 4 . 8 2 0 . 0 0 —1 6 9 A n n u a l —————————————————
Apartmen
ts
Low Rise
— — — — — — — — — — 7.99 0.00 7.99 0.80 0.00 — 27.9
Parking
Lot
——————————0 . 0 0 0 . 0 0 0 . 0 0 0 . 0 0 0 . 0 0 —0 . 0 0 Total — — — — — — — — — — 7.99 0.00 7.99 0.80 0.00 — 27.9

4.6. Refrigerant Emissions by Land Use

4.6.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
—————————————————
Apartmen
ts
Low Rise
———————————————0 . 9 2 0 . 9 2
T o t a l ———————————————0 . 9 2 0 . 9 2
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 28 / 34
Daily,
Winter
(Max)
—————————————————
Apartmen
ts
Low Rise
———————————————0 . 9 2 0 . 9 2
T o t a l ———————————————0 . 9 2 0 . 9 2
A n n u a l —————————————————
Apartmen
ts
Low Rise
———————————————0 . 1 5 0 . 1 5
T o t a l ———————————————0 . 1 5 0 . 1 5

5. Activity Data

5.1. Construction Schedule
Phase Name Phase Type Start Date End Date Days Per Week Work Days per Phase Phase Description Site Preparation Site Preparation 1/16/2024 2/23/2024 5.00 29.0 — Grading Grading 2/24/2024 3/6/2024 5.00 8.00 —
Building Construction Building Construction 3/7/2024 1/23/2025 5.00 230 — Paving Paving 1/24/2025 2/18/2025 5.00 18.0 —
Architectural Coating Architectural Coating 9/3/2024 2/18/2025 5.00 121 —

5.2. Off-Road Equipment

5.2.1. Unmitigated
Phase Name Equipment Type Fuel Type Engine Tier Number per Day Hours Per Day Horsepower Load Factor Site Preparation Rubber Tired Dozers Diesel Average 3.00 8.00 367 0.40 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 29 / 34

0.3784.08.004.00AverageDieselSite Preparation Tractors/Loaders/Backh oes
Grading Excavators Diesel Average 1.00 8.00 36.0 0.38
Grading Graders Diesel Average 1.00 8.00 148 0.41
Grading Rubber Tired Dozers Diesel Average 1.00 8.00 367 0.40 Grading Tractors/Loaders/Backh
oes
Diesel Average 3.00 8.00 84.0 0.37
Building Construction Cranes Diesel Average 1.00 7.00 367 0.29 Building Construction Forklifts Diesel Average 3.00 8.00 82.0 0.20 Building Construction Generator Sets Diesel Average 1.00 8.00 14.0 0.74 Building Construction Tractors/Loaders/Backh
oes
Diesel Average 3.00 7.00 84.0 0.37
Building Construction Welders Diesel Average 1.00 8.00 46.0 0.45 Paving Cement and Mortar
Mixers
Diesel Average 2.00 6.00 10.0 0.56
Paving Pavers Diesel Average 1.00 8.00 81.0 0.42
Paving Paving Equipment Diesel Average 2.00 6.00 89.0 0.36 Paving Rollers Diesel Average 2.00 6.00 36.0 0.38
Paving Tractors/Loaders/Backh
oes
Diesel Average 1.00 8.00 84.0 0.37
Architectural Coating Air Compressors Diesel Average 1.00 6.00 37.0 0.48

5.3. Construction Vehicles

5.3.1. Unmitigated
Phase Name Tr ip Type One-Way Trips per Day Miles per Trip Vehicle Mix Site Preparation — — — —
Site Preparation Worker 17.5 18.5 LDA,LDT1,LDT2
Site Preparation Vendor — 10.2 HHDT,MHDT
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 30 / 34
Site Preparation Hauling 0.00 20.0 HHDT
Site Preparation Onsite truck — — HHDT
Grading — — — —
Grading Worker 15.0 18.5 LDA,LDT1,LDT2
Grading Vendor — 10.2 HHDT,MHDT
Grading Hauling 199 20.0 HHDT
Grading Onsite truck — — HHDT
Building Construction — — — —
Building Construction Worker 87.1 18.5 LDA,LDT1,LDT2
Building Construction Vendor 12.9 10.2 HHDT,MHDT
Building Construction Hauling 0.00 20.0 HHDT
Building Construction Onsite truck — — HHDT
P a v i n g ————
Paving Worker 20.0 18.5 LDA,LDT1,LDT2
Paving Vendor — 10.2 HHDT,MHDT
Paving Hauling 0.00 20.0 HHDT
Paving Onsite truck — — HHDT
Architectural Coating — — — —
Architectural Coating Worker 17.4 18.5 LDA,LDT1,LDT2
Architectural Coating Vendor — 10.2 HHDT,MHDT
Architectural Coating Hauling 0.00 20.0 HHDT
Architectural Coating Onsite truck — — HHDT

5.4. Vehicles

5.4.1. Construction Vehicle Control Strategies
Non-applicable. No control strategies activated by user.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 31 / 34

5.5. Architectural Coatings
Phase Name Residential Interior Area Coated
(sq ft)
Residential Exterior Area Coated
(sq ft)
Non-Residential Interior Area
Coated (sq ft)
Non-Residential Exterior Area
Coated (sq ft)
Parking Area Coated (sq ft)
Architectural Coating 261,130 87,043 0.00 0.00 1,482

5.6. Dust Mitigation

5.6.1. Construction Earthmoving Activities
Phase Name Material Imported (Cubic Y ards) Material Exported (Cubic Y ards) Acres Graded (acres) Material Demolished (sq. ft.) Acres Paved (acres) Site Preparation 0.00 0.00 43.5 0.00 —
Grading 12,700 20.0 8.00 0.00 —
Paving 0.00 0.00 0.00 0.00 0.57

5.6.2. Construction Earthmoving Control Strategies
Control Strategies Applied Frequency (per day) PM10 Reduction PM2.5 Reduction Water Exposed Area 2 61% 61%

5.7. Construction Paving
Land Use Area Paved (acres) % Asphalt
Apartments Low Rise — 0%
Parking Lot 0.57 100%

5.8. Construction Electricity Consumption and Emissions Factors kWh per Y ear and Emission Factor (lb/MWh)
Ye a r kWh per Y ear CO2 CH4 N2O
2024 0.00 873 0.03 < 0.005
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 32 / 34
2025 0.00 873 0.03 < 0.005

5.9. Operational Mobile Sources

5.9.1. Unmitigated
Land Use Type Trips/Weekday Trips/Saturday Trips/Sunday Trips/Y ear VMT/Weekday VMT/Saturday VMT/Sunday VMT/Y ear Apartments Low
Rise
610 679 524 221,708 6,461 7,192 5,551 2,349,056
Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

5.10. Operational Area Sources

5.10.1. Hearths

5.10.1.1. Unmitigated
Hearth Type Unmitigated (number)
Apartments Low Rise —
Wood Fireplaces 0
Gas Fireplaces 0
Propane Fireplaces 0
Electric Fireplaces 0
No Fireplaces 0
Conventional Wood Stoves 0
Catalytic Wood Stoves 0
Non-Catalytic Wood Stoves 0
Pellet Wood Stoves 0

5.10.2. Architectural Coatings
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 33 / 34
Residential Interior Area Coated (sq ft) Residential Exterior Area Coated (sq ft) Non-Residential Interior Area Coated (sq ft)
Non-Residential Exterior Area Coated
(sq ft)
Parking Area Coated (sq ft)
261129.82499999998 87,043 0.00 0.00 1,482

5.10.3. Landscape Equipment
Season Unit Value
Snow Days day/yr 0.00
Summer Days day/yr 250

5.11. Operational Energy Consumption

5.11.1. Unmitigated
Electricity (kWh/yr) and CO2 and CH4 and N2O and Natural Gas (kBTU/yr) Land Use Electricity (kWh/yr) CO2 CH4 N2O Natural Gas (kBTU/yr) Apartments Low Rise 1,430,278 873 0.0330 0.0040 0.00
Parking Lot 21,636 873 0.0330 0.0040 0.00

5.12. Operational Water and Wastewater Consumption

5.12.1. Unmitigated
Land Use Indoor Water (gal/year) Outdoor Water (gal/year) Apartments Low Rise 4,921,527 844,933
Parking Lot 0.00 0.00

5.13. Operational Waste Generation

5.13.1. Unmitigated
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Madison Flats Residential (GBC2201) Custom Report, 3/8/2023 34 / 34
Land Use Waste (ton/year) Cogeneration (kWh/year)
Apartments Low Rise 27.7 0.00
Parking Lot 0.00 0.00

5.14. Operational Refrigeration and Air Conditioning Equipment

5.14.1. Unmitigated
Land Use Type Equipment Type Refrigerant GWP Quantity (kg) Operations Leak Rate Service Leak Rate Times Serviced Apartments Low Rise Average room A/C &
Other residential A/C
and heat pumps
R-410A 2,088 < 0.005 2.50 2.50 10.0
Apartments Low Rise Household refrigerators
and/or freezers
R-134a 1,430 0.12 0.60 0.00 1.00

8. User Changes to Default Data
Screen Justification
Land Use 4.12 acre site
Construction: Construction Phases Site is undeveloped, assumed that architectural coatings are applied during the building construction and paving phases.

Operations: Vehicle Data Used traffic study peak daily trip rate for weekdays, proportioned the CalEEMod defaults for weekend.

Operations: Hearths No residence will have either a fireplace or a wood stove.

Operations: Energy Use Riverside Ordinance 16.24 mandates no natural gas. Used 1 kWh=3,412 BTU to convert default natural gas consumption to electricity
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23)

APPENDIX B

ENERGY WORKSHEET

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA
A IR Q UALITY /G REENHOUSE G AS /E NERGY I MPACT A NALYSIS M AY 2023

P:\GBC2201 Madison Flats\Technical Studies\Air Quality\Products\AQ Report_20230519.docx (05/19/23)

This page intentionally left blank
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices LSA Associates, Inc. Natural Gas to Electricity Consumption Worksheet GBC2201 CalEEMod Default Energy Data
Electricity
(kWh/year)
Natural Gas
(kBTU/year)
Electricity
(kWh/year)
Natural Gas
(kBTU/year)
Electricity
(kWh/year)
Natural Gas
(kBTU/year)
Apartments Low Rise 828,462 2,053,397 392,279 1,851,367 436,183 202,030 Parking Lot 21,636 21,636
1 kWh = 3,412 BTUs
Energy Data Adjusted to use no Natural Gas
Electricity
(kWh/year)
Natural Gas
(kBTU/year)
Electricity
(kWh/year)
Natural Gas
(kBTU/year)
Electricity
(kWh/year)
Natural Gas
(kBTU/year)
Apartments Low Rise 1,430,278 0 934,884 0 495,394 0
Parking Lot 21,636 21,636
Land Use Subtype
Total Annual Consumption Subject to Title 24 Standards N ot Subject to Title 24 Land Use Subtype
Total Annual Consumption Subject to Title 24 Standards Not Subject to Title 24 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices LSA Associates, Inc. Fuel Consumption Worksheet GBC2201 Average
Gasoline
mpg
Average
Diesel
mpg

22.9 8
Land Use ADT LDA LDT1 LDT2 MDV LHD1 LHD2 MHD HHD OBUS UBUS MCY SBUS MH Residential 610 49.64% 3.91% 20.13% 15.97% 3.20% 0.91% 1.44% 1.58% 0.06% 0.04% 2.34% 0.13% 0.64% Gasoline‐powered: 98% 95% 75% 50% 50% 10% 5% 5% 0% 0% 100% 10% 50% Diesel‐powered: 2% 5% 25% 50% 50% 90% 95% 95% 100% 100% 0% 90% 50% truck % = 47.14%
Vehicle Percentages by fuel type
Fleet Mix from CalEEMod modeling
Annual VMT
from CalEEMod
modeling
2,349,056
Gasoline‐Fueled
Percentage

80.0%
Diesel‐Fueled
Percentage

20.0%
Gasoline
Consumption
(gallons/yr)
82,020
Diesel
Consumption
(gallons/yr)
58,830
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

Environmental Initial Study/Mitigated Negative Declaration # PR-2021-001197

APPENDIX B

Health Risk Assessment, Madison Flats Project
(Health Risk Assessment)
(LSA, May 2023)

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices May 2023

HEALTH RISK ASSESSMENT

MADISON FLATS PROJECT
RIVERSIDE, CALIFORNIA

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices May 2023

HEALTH RISK ASSESSMENT

MADISON FLATS PROJECT
RIVERSIDE, CALIFORNIA

Submitted to:

Gilbane Development Company
1100 North Glebe Road, Suite 1000
Arlington, Virginia 22201

Prepared by:

LSA
1500 Iowa Avenue, Suite 200
Riverside, California 92507
951.781.9310

Project No. GBC2201
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» i TABLE OF CONTENTS
TABLE OF CONTENTS ............................................................................................................................... i LIST OF ABBREVIATIONS AND ACRONYMS ............................................................................................. ii

1.0 INTRODUCTION ................................................................................................... 1

1.1 Background .......................................................................................................................... 1

1.2 Project Location ................................................................................................................... 2

1.3 Project Description ............................................................................................................... 2

1.4 TAC Emissions Sources in the Project Vicinity ...................................................................... 5

2.0 SETTING .............................................................................................................. 6

2.1 Climate/Meteorology ........................................................................................................... 6

2.2 Toxic Air Contaminants ........................................................................................................ 6

3.0 THRESHOLDS ....................................................................................................... 8

3.1 Health Risk Assessment Thresholds of Significance ............................................................. 8

4.0 HEALTH RISK ASSESSMENT .................................................................................. 9

4.1 General Information ............................................................................................................. 9

4.2 Health Risk Impacts ............................................................................................................ 14

4.3 Conclusions ........................................................................................................................ 15

5.0 REFERENCES ...................................................................................................... 16

FIGURES
Figure 1: Regional and Project Location ................................................................................................. 3 Figure 2: Site Plan ................................................................................................................................... 4 Figure 3: Project Area Wind Patterns ..................................................................................................... 6 Figure 4: AERMOD Modeling Layout .................................................................................................... 13

TABLES
Table A: TAC Concentrations at the Residential MEI ........................................................................... 12 Table B: Health Risk Levels for Future Residents of the Project With HEPA Filtration Systems on all Residences ......................................................................................................................... 15

APPENDICES
A: EMISSION FACTORS FOR VEHICLES AND TRAINS AND HEALTH RISK ASSESSMENT EMISSION RATES B: AERMOD OUTPUT AND HARP RESULTS
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» ii LIST OF ABBREVIATIONS AND ACRONYMS
AAQS ambient air quality standards
AB Assembly Bill
AERMOD American Meteorological Society/Environmental Protection Agency Regulatory Model
APCD Air Pollution Control District
APN Assessor's Parcel Number
AQMD Air Quality Management District
Basin South Coast Air Basin
BNSF Burlington Northern Santa Fe
CalEPA California Environmental Protection Agency
Caltrans California Department of Transportation
CAPCOA California Air Pollution Control Officers Association CARB California Air Resources Board
CARB Handbook Air Qualit
y and Land Use Handbook: A Community Health Perspective CEQA California Environmental Quality Act
City City of Riverside
cy cubic yards
DPM diesel particulate matter
EMFAC2021 California Emissions Factor Model, Version 2021 EPA United States Environmental Protection Agency
FIND Facility INformation Detail
ft foot/feet
HARP Hotspots Ana
lysis and Reporting Program
HEPA high‐efficiency particulate air
HI Hazard Index
HP horsepower
HRA Health Risk Assessment
IARC International Agency for Research on Cancer
MEI maximally exposed individual
MERV minimum efficiency reporting value
MICR maximum individual cancer risk
NED National Elevation Dataset
OEHHA Office of Environmental He
alth Hazard Assessment
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» iii PM10 particulate matter less than 10 microns in size
PM2.5 particulate matter less than 2.5 microns in size project Madison Flats Project
SB Senate Bill
SCAQMD South Coast Air Quality Management District
SCAQMD Guidelines AB 2588 and Rule 1402 Supplemental Guidelines sf square feet
SR‐91 State Route 91
TACs toxic air contaminants
URF unit risk factor
USC United States Code

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» 1

1.0 INTRODUCTION
LSA has prepared a Health Risk Assessment (HRA) for the proposed Madison Flats Project (project) in Riverside, Riverside County, California. The proposed project is located at the southwest corner of Madison Street and Railroad Avenue and would consist of a residential complex of three buildings with 76 senior residences and 45 family residences. The project woul d be operational in 2026.

An HRA is a process used to estimate the increased health risk levels for people living and/or working near a project that emits toxic air contaminants (TACs). An HRA combines the results of studies on the health effects of various animal and human exposure to TACs with the results of studies that e
stimate the exposure levels at different distances from the source of pollutants. The purpose of the HRA is to document the increased cancer and noncancer health risk levels from project‐related emissions of TACs on existing nearby sensitive receptors.

The City of Riverside (City) recommends the preparation of an HR A in accordance with policies and procedures of the Office of Environmental Health Hazard Assessment (OEHHA) and the South Coast Air Quality Management District (SCAQMD). This HRA evaluates risk consistent with these documents and in compliance with all applicable requirements.

1.1 BACKGROUND
This section provides a discussion of regulatory guidance from the California Air Resources Board (CARB), OEHHA, California Air Pollution Control Officers Association (CAPCOA), and SCAQMD.

1.1.1 California Air Resources Board Handbook and Technical Advisory The CARB has developed an Air Quality and Land Use Handbook: A Community Health Perspective (CARB Handbook) (CARB 2005) and the supplement Strategies to Reduce Air Pollution Exposure Near High‐Volume Roadways: A Technical Advisory (CARB 2017), that are intended to serve as general reference guides for evaluating and reducing air pollution impa cts associated with new projects that are part of the land use decision‐making process. According to the CARB Handbook, recent air pollution studies have shown an association between both respiratory and other noncancer health effects and proximity to high‐traffic roadways. Other studies have shown that diesel exhaust and other cancer‐causing chemicals emi
tted from cars and trucks are responsible for much of the overall cancer risk from airborne toxics in California. The CARB Handbook recommends that planning agencies recognize that the configuration of warehouse and distribution centers can reduce population exposure and risk. For example, locating the main entry and exit poin ts away from sensitive land uses helps to reduce cancer risks and other health impacts.

1.1.2 Office of Environmental Health and Hazard Assessment Guidelines The OEHHA developed the Air Toxics Hot Spots Program Guidance Manual (OEHHA 2015) in conjunction with the CARB for use in implementing the Air Toxics Hot Spots Program (Assembly Bill [AB] 2588). The Air Toxics Hot Spots Program Guidance Manual describes health effect values, exposure pathway variates (e.g., breathing rates), and a tiered approach for performin g HRAs based on current science and policy assessment. The intent of the Guidance Manual is to incorporate PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» 2 children’s health concerns, update risk assessment practices, and provide consistent risk assessment procedures.

1.1.3 California Air Pollution Control Officers Association In 2009, the CAPCOA published guidance (CAPCOA 2009) on assessing the health risk impacts from and to proposed land use projects (i.e., any development project that would site new receptors or would impact existing receptors), focusing on the acute, chronic, and cancer impacts of sources affected by the California Environmental Quality Act (CEQA). The document re commends procedures to identify when a project should undergo further risk evaluation, procedures for conducting an HRA, guidelines to engage the public, presentation guidelines for results from the HRA, and mitigation measures that may be appropriate for various land use projects.

1.1.4 South Coast Air Quality Management District
The SCAQMD has risk assessment guidelines, AB 2588 and Rule 1402 Supplemental Guidelines (SCAQMD Guidelines) (SCAQMD 2018). These guidelines incorporate the OEHHA guidance and the options to be used when using the CARB’s Hotspots Analysis and Reporting Program (HARP), Version 2, for risk assessment calculations (CARB n.d.‐b).

1.2 PROJECT LOCATION
The project area consists of Assessor’s Parcel Numbers (APNs) 230‐253‐010, 230‐245‐013, 230‐233‐ 013, and 230‐245‐015 and is located at the southwest corner of Madison Street and Railroad Avenue in Riverside, California. State Route SR‐91 is approximately 0.2 miles from the subject site.

The project area is approximately 3. 94 acres. The project site has the Burlington Northern Santa Fe (BNSF)/Inland Empire‐Orange County Railroad Line along the southeastern boundary. The project proposes to develop the entire area of the parcels. Figure 1 shows the project location and vicinity.

1.3 PROJECT DESCRIPTION
The proposed project would develop a residential complex of three buildings comprising 76 senior residences, 45 family residences, 63 parking spaces, and 43,600 square feet (sf) of open space on an existing vacant site. Figure 2 shows the site plan. The site is currently zoned as R‐1‐7000 Single Family Residential Zone and is proposed to change to R‐3‐ 1500 Multifamily Residential Zone.

Construction of the proposed project would start in mid‐January 2024 and would be complete in 2025. During construction, approximately 20 cubic yards (cy) of soil would be cut and 12,700 cy would be filled, for a net 12,680 cy of soil to be im ported. Per Title 24 building standards, the project would include high‐efficiency particulate air (HEPA) filters rated at a maximum efficiency reporting value (MERV) of 13 or better.

Land uses surrounding the project site include single‐family, commercial, and industrial uses. Single‐ family residences are located north and south of th e project site. Commercial uses are located to the east across Madison Street. Industrial uses are located to the south across the BNSF/Inland Empire‐ Orange County Railroad Line. The State Route 91 freeway is approximately 900 feet northwest of the project site, as shown in Figure 1.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices SOURCE: USGS The National Map
I:\GBC2201.02\GIS\Pro\Madison Fla
ts\Madison Flats.aprx (11/8/2022)
FIGURE 1
Madison Flats Project

S A N B E R N A R D I N O

C O U N T Y

R I V E R S I D E

1. STREET FACING PRIVATE PATIOS

2. OPEN STAIR VERTICAL CIRCULATION

3. RESIDENTIAL COURTYARDS FACING STREET

4. CENTRALIZED SENIOR PARKING

5. FAMILY PARKING

6. CORRIDOR SOUND BUFFER

7. INTERGENERATIONAL ZONE

KEYNOTES
2/3 STORY SENIOR RESIDENTIAL BUILDINGS
2/3 STORY FAMILY RESIDENTIAL BUILDINGS

AMENITIES AT GROUND FLOOR
10 MINUTE WALK

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» 5 Sensitive receptors include residences, schools, hospitals, and similar uses that are sensitive to adverse air quality. The nearest sensitive receptors to the project site are single‐family homes that are approximately 65 feet (ft) north of the project site across Railroad Avenue and approximately 80 ft south of the project site beyond the railroad tra cks along Evans Street. State Route 91 (SR‐91) is farther to the northwest.

This HRA focuses on the potential health risks to the future residents of the project following the CARB Handbook and Supplement and OEHHA, CAPCOA, and SCAQMD guidance and recommendations. It examines the short‐term and long‐term potential health effects from emissions of TACs in the area surrounding the project, primarily the exhaust of traffic on SR‐91, from trains operating on the adjacent tracks, and any TAC emissions from businesses operating within 1,000 ft of the project site.

1.4 TAC EMISSIONS SOURCES IN THE PROJECT VICINITY
As described above, the SCAQMD Guidelines require that HRAs for new residential projects include all sources of TACs within 1,000 ft of the project site for evaluation of the potential impacts to future residential uses. A survey of the SCAQMD Facility INformation Detail (FIND) database (SCAQMD n.d.‐a) shows there are no permitted facilities with reported TAC emissions within 1,000 ft of the project site.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

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2.0 SETTING
The project site is in Riverside, California, which is part of the South Coast Air Basin (Basin) and is under the jurisdiction of the SCAQMD.

2.1 CLIMATE/METEOROLOGY
Air quality in the project vicinity is not only affected by various emission sources (e.g., mobile and industry), but also by atmospheric conditions (e.g., wind speed, wind direction, temperature, and rainfall). The nearest representative meteorological station that provides the American Meteorological Society/Environmental Protection Agency Regulatory Model (AERMOD) ready meteorological data is the Riverside Airport Meteoro logical Station, about 2.5 miles northwest of the project site (SCAQMD n.d.‐b). Figure 3 shows the windrose1 from data measured at this station and the wind patterns for the project area.

Source: SCAQMD Meteorological Data for AERMOD. Website: www.aqmd.gov/home/ air‐quality/air‐quality‐data‐studies/meteorological‐data/data‐for‐aermod (accessed February 2023).

Figure 3: Project Area Wind Patterns

2.2 TOXIC AIR CONTAMINANTS
The public’s exposure to TACs is a significant environmental health issue in the State of California.

In 1983, the California Legislature enacted a program to identify the health effects of TACs and to

1 A windrose provides a succinct view of how wind speed and direction are typically distributed at a particular location. Presented in a circular format, the windrose shows the frequency of winds blowing from particular directions.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» 7 reduce exposure to these contaminants to protect the public health. The Health and Safety Code defines a TAC as “an air pollutant which may cause or contribute to an increase in mortality or in serious illness, or which may pose a present or potential hazard to human health.” (CARB n.d.‐a) In addition, substanc
es which have been listed as federal hazardous air pollutants (HAPs) pursuant to section 7412 of Title 42 of the United States Code are TACs under the State's air toxics program pursuant to section 39657 (b) of the California Health and Safety Code. The CARB formally made this identification on April 8, 1
993 (Title 17, California Code of Regulations, section 93001). Under State law, the California Environmental Protection Agency (CalEPA), acting through CARB, is authorized to identify a substance as a TAC if it determines the substance is an air pollutant that may cause or contribute to an increase in mortality or an increase in serious illness, or which may pose a present or potential hazard to human health.

California regulates TACs primarily through AB 1807 (Tanner Air Toxics Act), AB 2588 (Air Toxics “Hot Spot” Information and Assessment Act of 1987), and Senate Bill (SB) 25 (Children's Environmental Health Protection Act)
. The Tanner Air Toxics Act sets forth a formal procedure for CARB to designate substances as TACs. Once a TAC is identified, CARB adopts an “airborne toxics control measure” for sources that emit designated TACs. If there is a safe threshold for a substance for which there is no toxic effect, the con trol measure must reduce exposure to below that threshold. If there is no safe threshold, the measure must incorporate toxics best available control technology to minimize emissions.

Air toxics from stationary sources are also regulated in California under AB 2588. Under AB 2588, TAC emissions from individual facilities are quantified and prioriti zed by the designated Air Quality Management District (AQMD) or Air Pollution Control District (APCD). High‐priority facilities are required to perform an HRA and, if specific thresholds are exceeded, are required to communicate the results to the public in the form of notices and public meetings.

To date, the CARB has des
ignated over 200 compounds as TACs (CARB n.d.‐a). Additionally, the CARB has implemented control measures for a number of compounds that pose high risks and show potential for effective control. The majority of the estimated health risks from TACs can be attributed to relatively few compounds, the most import ant being particulate matter from diesel‐ fueled engines (diesel particulate matter [DPM]).

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

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3.0 THRESHOLDS

3.1 HEALTH RISK ASSESSMENT THRESHOLDS OF SIGNIFICANCE
Both the State and federal governments have established health‐based ambient air quality standards (AAQS) for seven air pollutants. For other air pollutants without defined significance standards, the definition of substantial pollutant concentrations varies. For TACs, “substantial” is taken to mean that the individual health risk exceeds a threshold considered to be a prudent risk management level.

The following limi
ts for maximum individual cancer risk (MICR) and noncancer acute and chronic Hazard Index (HI) from project emissions of TACs are considered appropriate for use in determining the health risk for projects in the Basin:
 MICR: MICR is the estimated probability of a maximally exposed individual (MEI) con tracting cancer as a result of exposure to TACs over a period of 30 years for adults and 9 years for children in residential locations. The MICR calculations include multipathway consideration, when applicable.

The cumulative increase in MICR that is the sum of the calculated MICR values for all TACs would be
considered significant if it would result in an increased MICR greater than 10 in 1 million (1 x 10‐5) at any receptor location.
 Chronic HI: Chronic HI is the ratio of the estimated long‐term level of exposure to a TAC for a potential MEI to its chronic reference exposure level. The chronic HI calculations include multipathway consideration, when applicable.

The project would be considered significant if the cumulative increase in total chronic HI for any target organ system would exceed 1.0 at any receptor location.  Acute
HI: Acute HI is the ratio of the estimated maximum 1‐hour concentration of a TAC for a potential MEI to its acute reference exposure level.

The project would be considered significant if the cumulative increase in total acute HI for any target organ system would exceed 1.0 at any receptor location.

The SCAQMD CEQA Air Quality H
andbook (1993, currently under revision) states that emissions of TACs are considered significant if an HRA shows an increased risk of greater than 10 in 1 million.

Based on guidance from SCAQ
MD in the document Health Risk Assessment Guidance for Analyzing Cancer Risks from Mobile Source Diesel Idling Emissions for CEQA Air Quality Analysis (2003), for the purposes of this analysis, the threshold of 10 in 1 million was used as the cancer risk threshold for the proposed project.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

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4.0 HEALTH RISK ASSESSMENT

4.1 GENERAL INFORMATION
For the purposes of an HRA, short‐term emissions are of concern for analyzing acute health impacts, and long‐term emissions are of concern for analyzing chronic and carcinogenic health impacts.

A screening‐level multipathway assessment has been conducted. This technique was chosen as recommended in the OEHHA Air Toxic Hot Spots Program Guidanc e Manual (2015).

This HRA has been conducted using three models:
 CARB California Emissions Factor Model, Version 2021 (EMFAC2021) (CARB n.d.‐d) for vehicle emissions factors and percentages of fuel type within the overall vehicle fleet  United States Environmental Protection Agency’s (EPA) AERMOD (EPA n.d.‐a) to determine how the TACs would move through the atmosphere after r
elease from sources near the project site
 CARB HARP model to translate the pollutant concentrations from AERMOD into individual health risks to future residents of the project
This HRA includes analyzing the inhalation, dermal soil, mother’s milk, and homegrown produce pathways. This technique
was chosen as prescribed in SCAQMD’s AB 2588 and Rule 1402 Supplemental Guidelines (2018).

The OEHHA has determined that long‐term exposure to diesel exhaust particulates poses the highest cancer risk of any TAC it has evaluated. Exposure to diesel exhaust can also have immediate health effects. Diesel exha ust can irritate the eyes, nose, throat, and lungs, and it can cause coughs, headaches, lightheadedness, and nausea. In studies with human volunteers, diesel exhaust particles (also known as DPM) made people with allergies more susceptible to the materials to which they are allergic, such as dust and pollen. Exposure to diesel e xhaust also causes inflammation in the lungs, which may aggravate chronic respiratory symptoms and increase the frequency or intensity of asthma attacks. For risk assessment procedures, the OEHHA specifies that the surrogate for whole diesel exhaust is DPM.

This screening HRA is considered to be conservative due primarily to the following three factors:

1. The CARB‐
adopted diesel exhaust unit risk factor (URF) of 300 in 1 million per microgram per cubic meter is based on the upper 95th percentile of estimated risk for each of the epidemiological studies used to develop the URF. Therefore, the risk factor is already representative of the conservative risk posed by DPM.

2. The risk estimates assume sensitive residence receptors would be subject to DPM for 24 hours per day, 350 days per year. As a conservative measure, SCAQMD does not recognize indoor adjustments for residents. However, typically people spend the majority of their time indoors PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» 10 versus remaining outdoors for 24 hours per day, 350 days per year.1 Therefore, the actual exposure any person would experience would be less than considered in this analysis. This results in much lower actual health risk levels than are presented in this analysis.

3. The exposure to DPM is assumed to be constant for the given period analyzed (i.e., 30 years).

However, emissions from DPM are expected to substantially decr ease in the future with the implementation of standard regulatory requirements and technological advancement to reduce DPM. Therefore, the health risk levels from these future vehicles would be less than presented in this analysis.

Improvements over the last 40 years to diesel fuel and diesel engines have resulted in lower emissions of some of these TACs (CARB 2019). These improvements resulted in a 75 percent reduction in particle emissions from diesel‐powered trucks and other equipment in 2010 and an 85 percent reduction by 2020 compared to 2000 levels (OEHHA 2001). These improvements are anticipated to continue into the foreseeable future. Elec tric trucks are also on the horizon and, once in use, would eliminate the emissions of DPM.

4.1.1 Emission Sources
The SR‐91 vehicle TAC emissions were characterized for the HRA analysis using data queried from the California Department of Transportation (Caltrans) Traffic Census Program for the 8‐year period from 2013 to 2020 and applying a 1 percent growth rate per year extrapolated out to the opening year of 2026. By this method, in 2026, there is projected to be a daily total of 221,321 vehicles traveling the section of SR‐91 near the project site (including 7,636 two‐axle trucks, 664 three‐axle trucks, 443 four‐axle trucks, and 2,324 trucks with more than four axles). EMFAC2021 was used to determine gasoline and DP
M emission factors (also referred to as particulate matter less than 10 microns in size [PM10] emission factors) for the vehicles operating on SR‐91. Vehicle emission factors for 2026 were used. This is considered conservative because vehicle emissions tend to be lower over time due to improved technology and regulations that are more restrictive.

While it is expected that the truck emissions rate will continue to reduce over time, an HRA only allows for a single emission rate to represent the entire 30‐year exposure period. To be
conservative, the use of emissions factors for the earliest year the proposed project could start operations (2026) was selected for this HRA. For instance, based on operations starting in 2026, using emissions factors for
a 2041 vehicle fleet (the midpoint of the 30‐year exposure period) could be used; however, either of these would be less conservative.

The BNSF/Inland Empire‐Orange County Railroad Line, which also carries Amtrak trains, is immediately south of the project site. The train crossing data from the Federal Railroad Administration Office of Safety Analysis show there are approximately 60 freight and passenger

1 In May 1991, the CARB Research Division, in association with the University of California, Berkeley, published research findings titled Activity Patterns of California Residents (CARB 1991). The findings of that study indicate that, on average, adults and adolescents in California spent almost 15 hours per day inside their homes and 6 hours in other indoor locations, fo r a total of 21 hours (87 percent of the day).

About 2 hours per day were spent in transit, and just over 1 hour per day was spent in outdoor locations.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» 11 trains per day. As the emissions from freight trains are greater than those from passenger trains, it was assumed for this analysis that all 60 trains are freight trains.

United States emission standards for railway locomotives apply to newly manufactured as well as remanufactured railroad locomotives and locomotive engines fueled by diesel and by other fuels (e.g., natural gas). The standards have been adopted by the EPA in two major regulatory steps:
 Tier 0‐2 Standards: The first emission regulation for railroad locomotives was adopted in December 1997. The rulemaking, which became effective from 2000, applied to locomotives originally manufactured from 1973 any time they were manufac tured or remanufactured.  Tier 3‐4 Standards: A regulation signed in March 2008 introduced more stringent emission requirements. Tier 3 standards became effective from 2011/12. Tier 4 standards, which were originally intended to require exhaust gas aftertreatment technologies, became effective from 2015. The 2008 regulation also includes more stringe nt emission standards for remanufactured Tier 0‐2 locomotives.

There is no information available describing the tier level of the trains passing the project site. For this analysis, it was assumed that no trains would be Tier 0 or 1, 75 percent of the trains would be Tier 2, no trains would be
Tier 3, and 25 percent of the trains would be Tier 4. This is considered a reasonable mix of older and newer engines. It was also assumed the train engines would average 4,000 horsepower (hp), and there would be an average of two engines per train.

4.1.2 Toxic Air Contaminant Air Dispersion Modeling
In order to assess the impact of TAC emissions on individuals who would live and work in the proposed facility, air dispersion modeling was performed using AERMOD. The model is provided by the EPA to estimate the pollutant concentrations associated with emissions sources in simple and complex terrain. The model was used to calculate th e annual average and short‐duration (e.g., 1‐ hour) TAC concentrations associated with emissions sources surrounding the project. Details of these inputs are shown in Appendix A.

A series of volume sources were used to represent vehicle activity for each side of SR‐91. Vertical (sigma z) dispersion parameters were developed by approximating mi xing zone residence time and quantifying the initial vertical term as described in the EPA guidance. An additional series of volume sources were used along the tracks of the BNSF/Inland Empire‐Orange County Railroad Line to represent the passing trains.

AERMOD requires additional input parameters, including local meteorology. Due to the mo del’s sensitivity to individual parameters such as wind speed, temperature, and direction, the EPA recommends that meteorological data used as input for dispersion models be selected on the basis of relative spatial and temporal conditions that exist in the area of concern. As such, 5 years of meteorological data from the SCAQMD’s Riverside Airport Meteorological Sta tion (described in
Section 2.1.1) were used to represent local weather conditions and prevailing winds.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» 12 The modeling analysis also considered the spatial distribution of each source in relation to the proposed site plan. Per SCAQMD recommendation, the National Elevation Dataset (NED) data were used to assign actual elevations. Receptors were placed in a grid with approximately 10‐meter (32 ft) spacing to characterize the risk levels throughout the proposed project site. Fi gure 4, AERMOD Modeling Setup, shows the locations of all emissions sources and receptors. Table A lists the maximum hourly and period concentrations for each of the TACs included in the HRA at the location of the highest TAC concentrations. These TACs are from the combination of gasoline‐ and diesel‐
fueled vehicles on SR‐91 and diesel‐fueled trains.

Table A: TAC Concentrations at the Residential MEI
TAC ID TAC Name Maximum Hourly Concentration (µg/m3) Period Concentration (µg/m3) 9901 Diesel Exhaust PM (PM10) 0.36 0.043
88101 PM2.5 0.34 0.041
106990 1,3‐Butadiene 0.012 0.0015
71432 Benzene 0.059 0.0073
100414 Ethyl Benzene 0.024 0.0030
78933 MEK 0.00043 0.000052
91203 Naphthalene 0.0011 0.00013
115071 Propylene 0.070 0.0086
100425 Styrene 0.0028 0.00035
108883 Toluene 0.13 0.016
1330207 Xylenes 0.082 0.010
Source: Compiled by LSA (2023).
µg/m3 = micrograms per cubic meter
MEK = methyl ethyl ketone
PM = particulate matter
PM10 = particulate matter less than 10 microns in size
PM2.5 = particulate matter less than 2.5 microns in size TAC = toxic air contaminant identification number

CARB’s HARP Version 2 is a tool that assists with the programmatic requirements of the Air Toxics “Hot Spots” Program (AB 2588). HARP was used to translate the AERMOD results into long‐term carcinogenic and chronic and short‐term acute health risk levels following the guidance in the SCAQMD AB 2588 and Rule 1402 Suppl emental Guidelines (2018). These guidelines specify that cancer risks must include, at a minimum, the following pathways: inhalation, homegrown produce, dermal absorption, soil ingestion, and mother’s milk. The noninhalation pathways should have a deposition velocity of 0.02 meter per second, the dermal pathway should assume a “warm” climate, and the “Risk Manageme
nt Policy Using the Derived Method” risk‐calculation option should be used. To estimate noncancer risks, the “OEHHA Derived Method” risk‐calculation option was used.

The long‐term exposure periods are 30 years for residents. The residential period is based on the assumption that an adult stays outdoors at his or her residence 24 hours per day for 30 years and a child stays outdoors at his or her residence 24 hours per day from the third trimester for 30 years.

Appendix A contains the HRA emissions worksheet and EMFAC data, and Appendix B contains select pages from the AERMOD output and the HARP report files for this HRA.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices I:\GBC2201\G\Modeling_Layout.ai (1/31/2023)
FIGURE 4
AERMOD Modeling Layout
Madison Flats Project
MILES

1.24.620
LEGEND
- Project Site
- AERMOD receptors
- AERMOD volume sources
Madison StreetMadison Street
Burlington Northern Santa Fe (BNSF)/Burlington Northern Santa Fe (BNSF)/ Inland Empire-Orange County Railroad LineInland Empire-Orange County Railroad Line Project Site
91 91
Burlington Northern Santa Fe (BNSF)/
Inland Empire-Orange County Railroad Line
Madison Street
Railroad AveRailroad AveRailroad Ave
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

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4.1.3 Hot Spots Analysis and Reporting Program Modeling CARB’s HARP model is a tool that assists with the programmatic requirements of the Air Toxics “Hot Spots” Program (AB 2588). HARP was used to translate the TAC concentrations from AERMOD into long‐term carcinogenic and chronic and short‐term acute health risk levels using the OEHHA‐ and CARB‐approved risk assessment health values (CARB n.d.‐ a) and following the guidance in the SCAQMD risk assessment guidelines (2003) for residents. These guidelines specify a minimum set of TAC pathways and HARP modeling options1 for the carcinogenic assessment. To estimate chronic noncancer risks at residential receptors, the “OEHHA‐Derived Method” risk‐calculation option was used to calculate 1‐hour and 8‐hour chronic noncancer risk levels.

The dose‐response relationship for a specific pollutant describes the association between exposure and the observed response (health effect). In other words, the relationship estimates how different levels of exposure to a pollutant change the likelihood and severity of health effects. The dose‐ response relationship (the response occurring with increasing doses) varies with each pollutant, individual sensitivity, and type of health effect. Combining the results of the emission characterization and dispersion modeling described abov e with the dose‐response assessment gives an estimate of the increased health risk for an individual exposed to the maximum predicted long‐ term concentrations of TACs.

Appendix A contains the HRA emissions worksheet and EMFAC data, and Appendix B contains select pages from the AERMOD output and the HARP report files for this HRA.

4.2 Health Risk Impacts

4.2.1 Acute Project‐Related Emission Impacts
Exposure to TACs from vehicle and train exhaust can result in immediate health effects. According to the EPA’s Learn About Impacts of Diesel Exhaust and the Diesel Emissions Reduction Act (DERA) website (EPA n.d.‐b), exposure to diesel exhaust can lead to serious health conditions like asthma and respiratory illnesses and can worsen existing heart and lung disease, espe cially in children and the elderly. According to the CARB’s Overview: Diesel Exhaust & Health website (CARB n.d.‐e), in 2012, additional studies on the cancer‐causing potential of diesel exhaust published since CARB’s determination led the International Agency for Research on Cancer (IARC, a division of the Worl d Health Organization) to list diesel engine exhaust as “carcinogenic to humans”. Emissions from gasoline‐powered vehicles do contain TACs with short‐term acute health effects.

The Acute Hazard Index is the ratio of the average short‐term (generally 1‐hour) ambient concentration of an acutely toxic substance(s) divided by the acute reference ex posure level set by

1 The SCAQMD AB 2588 and Rule 1402 Supplemental Guidelines (2018) specify that residential cancer risks assume a 30‐year exposure and must include, at a minimum, the following pathways: inhalation, homegrown produce, dermal absorption, soil ingestion, and mother’s milk; a deposition rate of 0.02 meter (0.8 inch) per second for the noninhalation pathwa ys; the dermal pathway should assume a “warm” climate; and the “Risk Management Policy Using the Derived Method” risk‐calculation option should be used.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» 15 the OEHHA. This ratio is repeated for every acutely toxic substance, and all are summed to derive the overall Acute Hazard Index. If this Acute Hazard Index is above 1, then adverse health effects may occur. Using the modeling methods described above for the project, Table B shows the maximum acute health risk s to future residents of the proposed project.

Table B: Health Risk Levels for Future Residents of the Project With HEPA Filtration Systems on all Residences
Location Maximum Cancer Risk Maximum Noncancer Risk
Chronic HI Acute HI
MEI Resident 0.14 in 1 million 0.009 0.002
SCAQMD Significance Threshold 10 in 1 million 1.0 1.0 Significant? No No No
Source: Compiled by LSA (2023).

HEPA = high‐efficiency particulate air
HI = Hazard Index
MEI = maximally exposed individual
SCAQMD = South Coast Air Quality Management District

As shown in Table B, the Acute HI would be 0.002 or less for the residential MEI. This is less than the threshold of 1.0. Acute impacts are a result of exposure to contaminant concentrations at extremely high levels. As demonstrated by the results of the analysis, air dispersion between the emission sources and the receptor loca
tions would substantially limit contaminant concentrations to the extent that a significant acute risk would not occur.

4.2.2 Carcinogenic and Chronic Project‐Related Emission Impacts The carcinogenic and chronic health risks for the future residents of the proposed project are also shown in Table B. While the SCAQMD does not recognize indoor adjustments for residents, as discussed above, the CARB 1991 Activity Patterns of California Residents study determined that, on average, adults and adolescents in California spent almost 15 hours per day inside their homes and 6 hours in other indoor locations, for a total of 21 hours (87 percent of the day). About 2 hours per day were spent in transit, and just over 1 hour per day was spent in outdoor locations. The required HVAC filtration systems rated at a MERV of 13 or be tter would reduce the particulate matter, including the DPM, by at least 90 percent. Thus, while the OEHHA methodology that assumes residents spend 24 hours a day outdoors results in a carcinogenic health risk level of 34 in a million, factoring in the results of the CARB 1991 Activity Patterns of California Re sidents study and the HEPA filtration systems reduces the carcinogenic health risk level to 0.14 in a million.

The resident carcinogenic risk shown applies to a child living in a residence for 9 years and to an adult living in a residence for 30 years. The Chronic HI for both would be 0.009, which is less than the threshold of 1.0.

4.3 CONCLUSIONS
Neither child nor adult residents of the proposed residential project would be exposed to carcinogenic, Chronic, or Acute HI risks that exceed applicable significance thresholds. As described in Section 4.2, these health risk levels are based on conservative assumptions. Thus, the future residents of the proposed project would not be exposed to any significant health risk level.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» 16

5.0 REFERENCES
California Air Pollution Control Officers Association (CAPCOA). 2009. Health Risk Assessments for Proposed Land Use Projects. July. Website: www.capcoa.org/wp‐content/uploads/2012/03/ CAPCOA_HRA_LU_Guidelines_8‐6‐09.pdf (accessed February 2023).

California Air Resources Board (CARB). 1991. Activity Patterns of California Residents. May. Website:
www.arb.ca.gov/sites/default/files/classic/research/apr/past/a6‐177‐33.pdf (accessed February 2023).
_____. 1998. Rulemaking Identification of Particulate Emissions from Dies el‐Fueled Engines as a Toxic Air Contaminant. Webpage last reviewed by CARB on February 25, 2010. Website:
www.arb.ca.gov/regact/diesltac/diesltac.htm (accessed February 2023). _____. 2005. Air Quality and Land Use Handbook: A Community Health Perspective. April. _____. 2015. Air Toxics Hot Spots Program Guidance Manual. March. Website: oehha.ca.gov/ air/crnr/notice‐adoption‐air‐toxics‐hot‐spot s‐program‐guidance‐manual‐preparation‐health‐ risk‐0 (accessed February 2023).
_____. 2017. Strategies to Reduce Air Pollution Exposure Near High‐Volume Roadways: A Technical Advisory. April. Website: www.arb.ca.gov/resources/fact‐sheets/strategies‐reduce‐air‐ pollution‐exposure‐near‐high‐volume‐roadways (accessed February 2023). _____. 2019. Truck and Bus Regulation Compliance Requirement Overview. June 18. Website:
www.arb.ca.gov/msprog/onrdiesel/documents/fsregsum.pdf (accessed February 2023). _____. n.d.‐a. CARB Identified Toxic Air Contaminants. Website: www.arb.ca.gov/resources/ documents/carb‐identified‐toxic‐air‐contaminants (accessed February 2023). _____. n.d.‐b. HARP. Hotspots Analysis and Reporting Program. Website: www.arb.ca.gov/ toxics/harp/harp.htm (accessed February 2023).
_____. n.d.‐c. Speciation Profiles Used in ARB Modeling. Webs ite: www.arb.ca.gov/ei/ speciate/speciate.htm (accessed February 2023).
_____. n.d.‐d. MSEI ‐ Modeling Tools, Emissions Factor Model, Version 2021 (EMFAC2021).

Website: www.arb.ca.gov/our‐work/programs/mobile‐source‐emissions‐inventory/msei‐ modeling‐tools (accessed February 2023).
_____. n.d.‐e. Overview: Diesel Exhaust & Health. Website: www.arb.ca.gov/resources/overview‐ diesel‐exhaust‐and‐health (accessed February 2023).

DieselNet. 2017. United States: Locomotives Emission Standards. March. Website:
dieselnet.com/standards/us/loco.php (accessed February 2023).

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» 17 Federal Railroad Administration (FRA). Office of Safety Analysis. Crossing Inventory and Accident Reports. Website: safetydata.fra.dot.gov/OfficeofSafety/PublicSite/Crossing/Crossing.aspx (accessed February 2023).

Office of Environmental Health Hazard Assessment (OEHHA). 2001. Health Effects of Diesel Exhaust.

May 21, 2001. Website: https://oehha.ca.gov/air/health‐effects‐diesel‐exhaust (accessed February 2023).
_____. 2015. Air Toxics Hot Spots Program Guidance Manual. March. Website:
oehha.ca.gov/air/crnr/notice‐adoption‐air
‐toxics‐hot‐spots‐program‐guidance‐manual‐
preparation‐health‐risk‐0 (accessed February 2023).

South Coast Air Quality Management District (SCAQMD). 1993. CEQA Air Quality Handbook (currently under revision).
_____. 2003. Health Risk Assessment Guidance for Analyzing Cancer Risks from Mobile Source Diesel Idling Emissions for CEQA Air Quality Analysis . August. _____. 2018. AB 2588 and Rule 1402 Supplemental Guidelines. July. Website: www.aqmd.gov/docs/ default‐source/planning/risk‐assessment/ab2588supplementalguidelines.pdf (accessed February 2023).
_____. n.d.‐a. Facility INformation Detail (FIND). Website: www.aqmd.gov/nav/FIND (accessed February 2023).
_____. n.d.‐b. SCAQMD Meteorological Data for AERMOD. Website: www.aqmd.gov/home/air‐ quality/air‐quality‐data‐studies/meteorological‐data/data‐for‐aermod (accessed February 2023).

Unit
ed States Environmental Protection Agency (EPA). 2018. Residential Air Cleaners (3rd Edition): A Technical Summary. Website: www.epa.gov/sites/production/files/2018‐07/documents/ residential_air_cleaners_‐_a_technical_summary_3rd_edition.pdf (accessed February 2023).
_____. n.d.‐a. AERMOD Modeling System. Website: www.epa.gov/scram/air‐quality‐dispersion‐ modeling‐preferred‐and‐recommended‐models (accessed February 2023). _____. n.d.‐b. Learn About Impacts of Diesel Exhaust and the Diesel Emissions Reduction Act (DERA).

Website: www.epa.gov/dera/learn‐about‐impacts‐diesel‐exhaust‐and‐diesel‐emissions‐ reduction‐act‐dera (accessed February 2023).

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» APPENDIX A

EMISSION FACTORS FOR VEHICLES AND TRAINS AND HEALTH RISK ASSESSMENT EMISSION RATES
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices LSA Associates, Inc. Vehicle Exhaust Worksheet ‐ SR‐91 Freeway GBC2201 2026 Emission factors
LDA1 2-Axle2 3-Axle3 4+-Axle4
210,255 7,636 664 2,767

0.2% 88.1% 61.1% 95.8% lb/yr lb/hr
diesel part. ‐‐ 3.81E‐01 4.35E‐05

0.0102 7.04E‐03 6.17E‐03 5.15E‐02 PM2.5 ‐‐ 3.65E‐01 4.16E‐05

0.0098 6.73E‐03 5.90E‐03 4.93E‐02 1,3‐butadiene 0.0055 1.34E‐02 1.53E‐06 benzene 0.02636 6.44E‐02 7.35E‐06

99.8% 11.9% 38.9% 4.2% ethylbenzene 0.01072 2.62E‐02 2.99E‐06 Number MEK 0.00019 4.64E‐04 5.30E‐08

5.39E‐03 2.82E‐02 2.82E‐02 5.64E‐01 of naphthalene 0.00048 1.17E‐03 1.34E‐07 Sources g/s lb/hr lb/yr propylene 0.03127998 7.64E‐02 8.72E‐06 PM10 7.13E-05 6.29E-04 3.32E-05 1.81E-03 465 5.5E‐06 4.3E‐05 0.3813 styrene 0.00126 3.08E‐03 3.51E‐07 PM2.5 6.82E-05 6.02E-04 3.18E-05 1.74E-03 465 5.2E‐06 4.2E‐05 0.3648 toluene 0.05879998 1.44E‐01 1.64E‐05 ROG 1.50E-02 3.40E-04 9.69E-05 8.63E-04 465 3.5E‐05 2.8E‐04 2.4430 m & p‐xylene 0.03639998 8.89E‐02 1.01E‐05 1 This category includes Light Duty Autos
2 2 axle trucks are assumed to be T6-Instate small (Medium-Heavy Duty Diesel Truck <= 26,000 lbs.) 3 3 axle trucks are assumed to be T6-Instate heavy (Medium-Heavy Duty Diesel Truck > 26,000 lbs.) 4 4+ axle trucks are assumed to be Heavy-Heavy Duty Diesel Truck (the emissions factor used is the highest of T7-Tractor, T7-Public, and T7-Single) trucks. 5 Source: Caltrans
6 Source: EMFAC2021 fleet percentages for 2026. Percentages of diesel and gasoline don't add to 100 because of natural gas, hybrid, and electric vehicles. 7 Source: EMFAC2021 emission factors for 2026.

Year Total Trucks Total Truck %2 Axle Volume
2 Axle
Percent
3 Axle
Volume
3 Axle
Percent
4 Axle
Volume
4 Axle
Percent 5 Axle Volume
5 Axle
Percent
2013 8,651 5.00% 5,969 69.00% 519 6.00% 346 4.00% 1,817 21.00% 2014 8,651 5.00% 5,969 69.00% 519 6.00% 346 4.00% 1,817 21.00% 2015 8,651 5.00% 5,969 69.00% 519 6.00% 346 4.00% 1,817 21.00% 2016 9,751 5.00% 6,728 69.00% 585 6.00% 390 4.00% 2,048 21.00% 2017 9,751 5.00% 6,728 69.00% 585 6.00% 390 4.00% 2,048 21.00% 2018 9,750 5.00% 6,728 69.00% 585 6.00% 390 4.00% 2,048 21.00% 2019 9,750 5.00% 6,728 69.00% 585 6.00% 390 4.00% 2,048 21.00% 2020 9,600 5.00% 6,624 69.00% 576 6.00% 384 4.00% 2,016 21.00% Projected for the year 2026
2026 11,065 5.00% 7,636 69.01% 664 6.00% 443 4.00% 2,324 21.00% Emission Rates by TAC
Total distance
covered by each set
of SR-91 sources
AADT Total
1,848 meters
PM10, PM2.5, & ROG Exhaust Emissions (g/s)
Traffic data from CalTrans
Emission Rates per source
Gasoline Exhaust ROG Emissions at 50 mph (g/mi)7
AADT by Vehicle Category
% of Vehicles That Are Diesel‐Powered6
% of Vehicles That Are Gasoline‐Powered6
SR‐91
Total
AADT5
221,321
Diesel Exhaust PM10 & PM2.5 Emissions at 50 mph (g/mi)7Average Speed
50 mph
173,000
173,000
195,000
221,321
173,000
195,000
195,000
192,000
195,000
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices LSA Associates, Inc. Train Exhaust Worksheet GBC2201
Tier 1
Tier 2
Tier 3
Tier 4
Tier 1 Tier 2 Tier 3 Tier 4 (lb/hr) (lb/yr)
BNSF freight 4400 0% 75% 0% 25% 1.67 2 60 50 6 0.000002 0.018 Source spacing 9.05 meters
Number of volume sources 395
meters per mile 1,609
Tier MY Date HC CO NOx PM
Tier 0a 1973‐1992c 2010d 15 8 0 .22
Tier 1a 1993c‐2004 2010 d 0.55 2.2 7.4 0.22
Tier 2a 2005‐2011 2010d 0.3 1.5 5.5 0.10e
Tier 3b 2012‐2014 2012 0.3 1.5 5.5 0.1
Tier 4 2015 or later 2015 0.14f 1.5 1.3f 0.03
a - Tier 0-2 line-haul locomotives must also meet switch standards of the same tier. b - Tier 3 line-haul locomotives must also meet Tier 2 switch standards. c - 1993-2001 locomotive that were not equipped with an intake air coolant system are subject to Tier 0 rather than Tier 1 stan dards. d - As early as 2008 if approved engine upgrade kits become available. e - 0.20 g/bhp-hr until January 1, 2013 (with some exceptions). f - Manufacturers may elect to meet a combined NOx+HC standard of 1.4 g/bhp-hr.

Line‐Haul Locomotive Emission Standards, g/bhp∙hr
Source: DieselNet (dieselnet.com/standards/us/loco.php) (accessed January 2023) trains
per day
average
speed (mph)
days per
week
Average PM10 Emissions
Rate per Source

0.1 0.03
Locomotive
HP
Percent of Locomotives that are Average Locomotive PM10 Emissions Rate (lb/hr)
Locomotives
per train
Train Emission Factors
PM10
Moving
(g/bhp-hr)

0.22 0.22
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices LSA Associates, Inc. EMFAC2021 Emissions Factors GBC2201 Source: EMFAC2021 (v1.0.2) Emission Rates
Region Type: Sub‐Area
Region: Riverside (SC)
Calendar Year: 2026
Season: Annual
Vehicle Classification: EMFAC2011 Categories
Units: g/mile for RUNEX
Region Calendar Year Vehicle Category Model Year Speed Fuel PM2.5_RUNEX PM10_RUNEX ROG_RUNEX Riverside (SC) 2026 LDA Aggregate 50 Gasoline 0.000848878 0.000923232 0.005391178 Riverside (SC) 2026 LDA Aggregate 50 Diesel 0.009801589 0.010244773 0.015856125 Riverside (SC) 2026 T6 instate heavy Aggregate 50 Diesel 0.005898951 0.006165675 0.006751032 Riverside (SC) 2026 T6 instate small Aggregate 50 Diesel 0.006731859 0.007036244 0.009288951 Riverside (SC) 2026 T6TS Aggregate 50 Gasoline 0.00068953 0.000749927 0.028217815 Riverside (SC) 2026 T7 Public Aggregate 50 Diesel 0.049264481 0.051492002 0.060306701 Riverside (SC) 2026 T7 Single Aggregate 50 Diesel 0.01106179 0.011561955 0.007952095 Riverside (SC) 2026 T7 Tractor Aggregate 50 Diesel 0.014666651 0.015329812 0.009375761 Riverside (SC) 2026 T7IS Aggregate 50 Gasoline 0.000895284 0.000973703 0.563735004 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices LSA Associates, Inc. EMFAC2021 Fuel Percentage Worksheet GBC2201 Source: EMFAC2021 (v1.0.2) Emissions Inventory
Region Type: Sub‐Area
Region: Riverside (SC)
Calendar Year: 2026
Season: Annual
Vehicle Classification: EMFAC2011 Categories
Region Calendar Year Vehicle Category Model Year Speed Fuel Population Fuel % Riverside (
S 2026 LDA Aggregate Aggregate Gasoline 470,220 91.5%
Riverside (S 2026 LDA Aggregate Aggregate Diesel 1,279 0.2% Riverside (S 2026 LDA Aggregate Aggregate Electricity 27,110 5.3% Riverside (S 2026 LDA Aggregate Aggregate Plug ‐in Hybrid 15,111 2.9% Riverside (S 2026 T6 instate heavy Aggregate Aggregate Diesel 2,039 61.1% Riverside (S 2026 T6 instate heavy Aggregate Aggregate Electricity 20 0.6% Riverside (S 2026 T6 instate heavy Aggregate Aggregate Natural Gas 57 1.7% Riverside (S 2026 T6 instate small Aggregate Aggregate Diesel 10,533 88.1% Riverside (S 2026 T6 instate small Aggregate Aggregate Electricity 160 1.3% Riverside (S 2026 T6 instate small Aggregate Aggregate Natural Gas 38 0.3% Riverside (S 2026 T6TS Aggregate Aggregate Gasoline 1,204 Riverside (S 2026 T6TS Aggregate Aggregate Electricity 18 Riverside (S 2026 T7 Public Aggregate Aggregate Diesel 600 71.1% Riverside (S 2026 T7 Public Aggregate Aggregate Electricity 10 1.2% Riverside (S 2026 T7 Public Aggregate Aggregate Natural Gas 228 27.0% Riverside (S 2026 T7 Single Aggregate Aggregate Diesel 3,770 91.2% Riverside (S 2026 T7 Single Aggregate Aggregate Electricity 75 1.8% Riverside (S 2026 T7 Single Aggregate Aggregate Natural Gas 282 6.8% Riverside (S 2026 T7 Tractor Aggregate Aggregate Diesel 4,309 95.8% Riverside (S 2026 T7 Tractor Aggregate Aggregate Electricity 42 0.9% Riverside (S 2026 T7 Tractor Aggregate Aggregate Natural Gas 140 3.1% Riverside (S 2026 T7IS Aggregate Aggregate Gasoline 5
Riverside (S 2026 T7IS Aggregate Aggregate Electricity 0 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices H EALTH R ISK A SSESSMENT
M AY 2023
M ADISON F LATS P ROJECT
R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\HRA\Products\GBC2201 Madison Flats HRA_20230519.docx «05/19/23» APPENDIX B

AERMOD OUTPUT AND HARP RESULTS
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 1
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** MODEL SETUP OPTIONS SUMMARY ***
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ** Model Options Selected:
* Model Uses Regulatory DEFAULT Options
* Model Is Setup For Calculation of Average CONCentration Values. * NO GAS DEPOSITION Data Provided.
* NO PARTICLE DEPOSITION Data Provided.
* Model Uses NO DRY DEPLETION. DDPLETE = F
* Model Uses NO WET DEPLETION. WETDPLT = F
* Stack-tip Downwash.
* Model Accounts for ELEVated Terrain Effects.
* Use Calms Processing Routine.
* Use Missing Data Processing Routine.
* No Exponential Decay.
* Model Uses URBAN Dispersion Algorithm for the SBL for 860 Source(s), for Total of 1 Urban Area(s):

Urban Population = 326414.0 ; Urban Roughness Length = 1.000 m * Urban Roughness Length of 1.0 Meter Used.
* ADJ_U* - Use ADJ_U* option for SBL in AERMET
* CCVR_Sub - Meteorological data includes CCVR substitutions * TEMP_Sub - Meteorological data includes TEMP substitutions * Model Assumes No FLAGPOLE Receptor Heights.
* The User Specified a Pollutant Type of: TOXICS

**Model Calculates 1 Short Term Average(s) of: 1-HR
and Calculates PERIOD Averages

**This Run Includes: 860 Source(s); 860 Source Group(s); and 113 Receptor(s) with: 0 POINT(s), including
0 POINTCAP(s) and 0 POINTHOR(s)
and: 860 VOLUME source(s)
and: 0 AREA type source(s)
and: 0 LINE source(s)
and: 0 RLINE/RLINEXT source(s)
and: 0 OPENPIT source(s)
and: 0 BUOYANT LINE source(s) with a total of 0 line(s) and: 0 SWPOINT source(s)

**Model Set To Continue RUNning After the Setup Testing. **The AERMET Input Meteorological Data Version Date: 16216

**Output Options Selected:

Model Outputs Tables of PERIOD Averages by Receptor
Model Outputs Tables of Highest Short Term Values by Receptor (RECTABLE Keyword) Model Outputs External File(s) of High Values for Plotting (PLOTFILE Keyword) Model Outputs Separate Summary File of High Ranked Values (SUMMFILE Keyword)

**NOTE: The Following Flags May Appear Following CONC Values: c for Calm Hours m for Missing Hours
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices b for Both Calm and Missing Hours

**Misc. Inputs: Base Elev. for Pot. Temp. Profile (m MSL) = 245.00 ; Decay Coef. = 0.000 ; Rot. Angle = 0.0 Emission Units = GRAMS/SEC ; Emission Rate Unit Factor = 0.10000E+07 Output Units = MICROGRAMS/M**3

**Approximate Storage Requirements of Model = 11.2 MB of RAM.

**Input Runstream File: aermod.inp
**Output Print File: aermod.out
**File for Summary of Results: EB-AERMOD.SUM
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 2
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SR91W001 0 0.10000E+01 463999.5 3756227.1 267.1 3.11 7.89 2.89 YES SR91W002 0 0.10000E+01 463986.6 3756216.2 266.8 3.11 7.89 2.89 YES SR91W003 0 0.10000E+01 463973.6 3756205.2 266.6 3.11 7.89 2.89 YES SR91W004 0 0.10000E+01 463960.6 3756194.3 266.3 3.11 7.89 2.89 YES SR91W005 0 0.10000E+01 463947.6 3756183.4 266.0 3.11 7.89 2.89 YES SR91W006 0 0.10000E+01 463934.7 3756172.4 265.6 3.11 7.89 2.89 YES SR91W007 0 0.10000E+01 463921.7 3756161.5 265.2 3.11 7.89 2.89 YES SR91W008 0 0.10000E+01 463908.7 3756150.5 264.9 3.11 7.89 2.89 YES SR91W009 0 0.10000E+01 463895.7 3756139.6 264.7 3.11 7.89 2.89 YES SR91W010 0 0.10000E+01 463882.8 3756128.7 264.4 3.11 7.89 2.89 YES SR91W011 0 0.10000E+01 463869.8 3756117.7 264.2 3.11 7.89 2.89 YES SR91W012 0 0.10000E+01 463856.8 3756106.8 264.1 3.11 7.89 2.89 YES SR91W013 0 0.10000E+01 463843.8 3756095.8 264.0 3.11 7.89 2.89 YES SR91W014 0 0.10000E+01 463830.8 3756084.9 263.9 3.11 7.89 2.89 YES SR91W015 0 0.10000E+01 463817.9 3756074.0 263.9 3.11 7.89 2.89 YES SR91W016 0 0.10000E+01 463804.9 3756063.0 264.0 3.11 7.89 2.89 YES SR91W017 0 0.10000E+01 463791.9 3756052.1 264.1 3.11 7.89 2.89 YES SR91W018 0 0.10000E+01 463778.9 3756041.1 264.3 3.11 7.89 2.89 YES SR91W019 0 0.10000E+01 463766.0 3756030.2 264.5 3.11 7.89 2.89 YES SR91W020 0 0.10000E+01 463753.0 3756019.3 264.8 3.11 7.89 2.89 YES SR91W021 0 0.10000E+01 463740.0 3756008.3 265.2 3.11 7.89 2.89 YES SR91W022 0 0.10000E+01 463727.0 3755997.4 265.6 3.11 7.89 2.89 YES SR91W023 0 0.10000E+01 463714.1 3755986.4 266.0 3.11 7.89 2.89 YES SR91W024 0 0.10000E+01 463701.1 3755975.5 266.4 3.11 7.89 2.89 YES SR91W025 0 0.10000E+01 463688.1 3755964.6 266.8 3.11 7.89 2.89 YES SR91W026 0 0.10000E+01 463675.1 3755953.6 267.4 3.11 7.89 2.89 YES SR91W027 0 0.10000E+01 463662.1 3755942.7 267.7 3.11 7.89 2.89 YES SR91W028 0 0.10000E+01 463649.2 3755931.8 268.2 3.11 7.89 2.89 YES SR91W029 0 0.10000E+01 463636.2 3755920.8 268.5 3.11 7.89 2.89 YES SR91W030 0 0.10000E+01 463623.2 3755909.9 268.8 3.11 7.89 2.89 YES SR91W031 0 0.10000E+01 463610.2 3755898.9 268.8 3.11 7.89 2.89 YES SR91W032 0 0.10000E+01 463597.3 3755888.0 268.9 3.11 7.89 2.89 YES SR91W033 0 0.10000E+01 463584.3 3755877.0 266.6 3.11 7.89 2.89 YES SR91W034 0 0.10000E+01 463571.3 3755866.1 264.0 3.11 7.89 2.89 YES SR91W035 0 0.10000E+01 463558.3 3755855.2 268.5 3.11 7.89 2.89 YES SR91W036 0 0.10000E+01 463545.4 3755844.2 269.3 3.11 7.89 2.89 YES SR91W037 0 0.10000E+01 463532.4 3755833.3 269.3 3.11 7.89 2.89 YES SR91W038 0 0.10000E+01 463519.4 3755822.3 269.2 3.11 7.89 2.89 YES SR91W039 0 0.10000E+01 463506.4 3755811.4 268.7 3.11 7.89 2.89 YES SR91W040 0 0.10000E+01 463493.5 3755800.5 268.5 3.11 7.89 2.89 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 3
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SR91W041 0 0.10000E+01 463480.5 3755789.5 268.1 3.11 7.89 2.89 YES SR91W042 0 0.10000E+01 463467.5 3755778.6 267.8 3.11 7.89 2.89 YES SR91W043 0 0.10000E+01 463454.5 3755767.6 267.3 3.11 7.89 2.89 YES SR91W044 0 0.10000E+01 463441.5 3755756.7 267.0 3.11 7.89 2.89 YES SR91W045 0 0.10000E+01 463428.6 3755745.8 266.6 3.11 7.89 2.89 YES SR91W046 0 0.10000E+01 463415.6 3755734.8 266.4 3.11 7.89 2.89 YES SR91W047 0 0.10000E+01 463402.6 3755723.9 266.2 3.11 7.89 2.89 YES SR91W048 0 0.10000E+01 463389.6 3755712.9 266.0 3.11 7.89 2.89 YES SR91W049 0 0.10000E+01 463376.7 3755702.0 265.9 3.11 7.89 2.89 YES SR91W050 0 0.10000E+01 463363.7 3755691.1 265.7 3.11 7.89 2.89 YES SR91W051 0 0.10000E+01 463350.7 3755680.1 265.6 3.11 7.89 2.89 YES SR91W052 0 0.10000E+01 463337.7 3755669.2 265.5 3.11 7.89 2.89 YES SR91W053 0 0.10000E+01 463324.8 3755658.2 265.4 3.11 7.89 2.89 YES SR91W054 0 0.10000E+01 463311.8 3755647.3 265.3 3.11 7.89 2.89 YES SR91W055 0 0.10000E+01 463298.8 3755636.4 265.3 3.11 7.89 2.89 YES SR91W056 0 0.10000E+01 463285.8 3755625.5 265.2 3.11 7.89 2.89 YES SR91W057 0 0.10000E+01 463271.8 3755615.9 265.0 3.11 7.89 2.89 YES SR91W058 0 0.10000E+01 463257.7 3755606.4 264.8 3.11 7.89 2.89 YES SR91W059 0 0.10000E+01 463243.7 3755596.8 264.7 3.11 7.89 2.89 YES SR91W060 0 0.10000E+01 463229.7 3755587.3 264.5 3.11 7.89 2.89 YES SR91W061 0 0.10000E+01 463215.6 3755577.7 264.3 3.11 7.89 2.89 YES SR91W062 0 0.10000E+01 463201.6 3755568.2 264.2 3.11 7.89 2.89 YES SR91W063 0 0.10000E+01 463187.6 3755558.6 263.9 3.11 7.89 2.89 YES SR91W064 0 0.10000E+01 463173.5 3755549.1 263.6 3.11 7.89 2.89 YES SR91W065 0 0.10000E+01 463159.5 3755539.6 263.5 3.11 7.89 2.89 YES SR91W066 0 0.10000E+01 463145.5 3755530.0 263.5 3.11 7.89 2.89 YES SR91W067 0 0.10000E+01 463131.4 3755520.5 263.6 3.11 7.89 2.89 YES SR91W068 0 0.10000E+01 463117.4 3755510.9 263.4 3.11 7.89 2.89 YES SR91W069 0 0.10000E+01 463103.3 3755501.4 263.2 3.11 7.89 2.89 YES SR91W070 0 0.10000E+01 463089.3 3755491.8 263.2 3.11 7.89 2.89 YES SR91W071 0 0.10000E+01 463075.3 3755482.3 263.2 3.11 7.89 2.89 YES SR91W072 0 0.10000E+01 463061.2 3755472.7 263.1 3.11 7.89 2.89 YES SR91W073 0 0.10000E+01 463047.2 3755463.2 263.0 3.11 7.89 2.89 YES SR91W074 0 0.10000E+01 463033.2 3755453.6 263.0 3.11 7.89 2.89 YES SR91W075 0 0.10000E+01 463019.1 3755444.1 262.9 3.11 7.89 2.89 YES SR91W076 0 0.10000E+01 463005.1 3755434.6 262.7 3.11 7.89 2.89 YES SR91W077 0 0.10000E+01 462991.1 3755425.0 262.7 3.11 7.89 2.89 YES SR91W078 0 0.10000E+01 462977.0 3755415.5 262.6 3.11 7.89 2.89 YES SR91W079 0 0.10000E+01 462963.0 3755405.9 262.6 3.11 7.89 2.89 YES SR91W080 0 0.10000E+01 462949.0 3755396.4 262.7 3.11 7.89 2.89 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 4
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SR91W081 0 0.10000E+01 462935.0 3755386.8 262.8 3.11 7.89 2.89 YES SR91W082 0 0.10000E+01 462920.9 3755377.3 263.1 3.11 7.89 2.89 YES SR91W083 0 0.10000E+01 462906.9 3755367.7 263.2 3.11 7.89 2.89 YES SR91W084 0 0.10000E+01 462892.8 3755358.2 263.1 3.11 7.89 2.89 YES SR91W085 0 0.10000E+01 462878.8 3755348.6 263.0 3.11 7.89 2.89 YES SR91W086 0 0.10000E+01 462864.8 3755339.1 262.9 3.11 7.89 2.89 YES SR91W087 0 0.10000E+01 462850.7 3755329.5 262.8 3.11 7.89 2.89 YES SR91W088 0 0.10000E+01 462836.7 3755320.0 262.7 3.11 7.89 2.89 YES SR91W089 0 0.10000E+01 462822.7 3755310.5 262.6 3.11 7.89 2.89 YES SR91W090 0 0.10000E+01 462808.6 3755300.9 262.5 3.11 7.89 2.89 YES SR91W091 0 0.10000E+01 462794.6 3755291.4 262.5 3.11 7.89 2.89 YES SR91W092 0 0.10000E+01 462780.6 3755281.8 262.7 3.11 7.89 2.89 YES SR91W093 0 0.10000E+01 462766.5 3755272.3 262.8 3.11 7.89 2.89 YES SR91W094 0 0.10000E+01 462752.5 3755262.7 262.8 3.11 7.89 2.89 YES SR91W095 0 0.10000E+01 462738.5 3755253.2 262.9 3.11 7.89 2.89 YES SR91W096 0 0.10000E+01 462724.4 3755243.6 262.9 3.11 7.89 2.89 YES SR91W097 0 0.10000E+01 462710.4 3755234.1 263.0 3.11 7.89 2.89 YES SR91W098 0 0.10000E+01 462696.4 3755224.5 263.1 3.11 7.89 2.89 YES SR91W099 0 0.10000E+01 462682.3 3755215.0 263.2 3.11 7.89 2.89 YES SR91W100 0 0.10000E+01 462668.3 3755205.5 263.2 3.11 7.89 2.89 YES SR91W101 0 0.10000E+01 462654.3 3755195.9 263.2 3.11 7.89 2.89 YES SR91W102 0 0.10000E+01 462640.2 3755186.4 263.1 3.11 7.89 2.89 YES SR91W103 0 0.10000E+01 462626.2 3755176.8 262.9 3.11 7.89 2.89 YES SR91W104 0 0.10000E+01 462612.2 3755167.3 262.8 3.11 7.89 2.89 YES SR91W105 0 0.10000E+01 462598.1 3755157.7 262.7 3.11 7.89 2.89 YES SR91W106 0 0.10000E+01 462584.1 3755148.2 261.2 3.11 7.89 2.89 YES SR91W107 0 0.10000E+01 462570.1 3755138.6 259.1 3.11 7.89 2.89 YES SR91W108 0 0.10000E+01 462556.0 3755129.1 260.3 3.11 7.89 2.89 YES SR91W109 0 0.10000E+01 462542.0 3755119.5 262.3 3.11 7.89 2.89 YES SR91W110 0 0.10000E+01 462528.0 3755110.0 262.2 3.11 7.89 2.89 YES SR91W111 0 0.10000E+01 462513.9 3755100.5 262.1 3.11 7.89 2.89 YES SR91W112 0 0.10000E+01 462499.9 3755090.9 262.1 3.11 7.89 2.89 YES SR91W113 0 0.10000E+01 462485.9 3755081.4 262.1 3.11 7.89 2.89 YES SR91W114 0 0.10000E+01 462471.8 3755071.8 262.1 3.11 7.89 2.89 YES SR91W115 0 0.10000E+01 462457.8 3755062.3 261.9 3.11 7.89 2.89 YES SR91W116 0 0.10000E+01 462443.8 3755052.7 261.5 3.11 7.89 2.89 YES SR91W117 0 0.10000E+01 462429.7 3755043.2 261.0 3.11 7.89 2.89 YES SR91W118 0 0.10000E+01 462415.7 3755033.6 260.3 3.11 7.89 2.89 YES SR91W119 0 0.10000E+01 462401.6 3755024.1 259.8 3.11 7.89 2.89 YES SR91W120 0 0.10000E+01 462387.6 3755014.5 259.5 3.11 7.89 2.89 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 5
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SR91W121 0 0.10000E+01 462373.6 3755005.0 259.2 3.11 7.89 2.89 YES SR91W122 0 0.10000E+01 462359.5 3754995.4 258.9 3.11 7.89 2.89 YES SR91W123 0 0.10000E+01 462345.5 3754985.9 258.7 3.11 7.89 2.89 YES SR91W124 0 0.10000E+01 462331.5 3754976.4 258.7 3.11 7.89 2.89 YES SR91W125 0 0.10000E+01 462317.5 3754966.8 258.6 3.11 7.89 2.89 YES SR91W126 0 0.10000E+01 462303.4 3754957.3 258.5 3.11 7.89 2.89 YES SR91W127 0 0.10000E+01 462289.4 3754947.7 258.3 3.11 7.89 2.89 YES SR91W128 0 0.10000E+01 462275.3 3754938.2 258.2 3.11 7.89 2.89 YES SR91W129 0 0.10000E+01 462261.3 3754928.6 258.0 3.11 7.89 2.89 YES SR91W130 0 0.10000E+01 462247.3 3754919.1 258.0 3.11 7.89 2.89 YES SR91W131 0 0.10000E+01 462233.2 3754909.5 257.9 3.11 7.89 2.89 YES SR91W132 0 0.10000E+01 462219.2 3754900.0 257.8 3.11 7.89 2.89 YES SR91W133 0 0.10000E+01 462205.2 3754890.4 257.7 3.11 7.89 2.89 YES SR91W134 0 0.10000E+01 462191.1 3754880.9 257.6 3.11 7.89 2.89 YES SR91W135 0 0.10000E+01 462177.1 3754871.4 257.6 3.11 7.89 2.89 YES SR91W136 0 0.10000E+01 462163.1 3754861.8 257.5 3.11 7.89 2.89 YES SR91W137 0 0.10000E+01 462149.0 3754852.3 257.4 3.11 7.89 2.89 YES SR91W138 0 0.10000E+01 462135.0 3754842.7 257.4 3.11 7.89 2.89 YES SR91W139 0 0.10000E+01 462121.0 3754833.2 257.3 3.11 7.89 2.89 YES SR91W140 0 0.10000E+01 462106.9 3754823.6 257.2 3.11 7.89 2.89 YES SR91W141 0 0.10000E+01 462092.9 3754814.1 257.1 3.11 7.89 2.89 YES SR91W142 0 0.10000E+01 462078.9 3754804.5 257.0 3.11 7.89 2.89 YES SR91W143 0 0.10000E+01 462064.8 3754795.0 257.0 3.11 7.89 2.89 YES SR91W144 0 0.10000E+01 462050.8 3754785.4 257.1 3.11 7.89 2.89 YES SR91W145 0 0.10000E+01 462036.8 3754775.9 257.1 3.11 7.89 2.89 YES SR91W146 0 0.10000E+01 462022.7 3754766.4 257.3 3.11 7.89 2.89 YES SR91W147 0 0.10000E+01 462008.7 3754756.8 257.4 3.11 7.89 2.89 YES SR91W148 0 0.10000E+01 461994.7 3754747.3 257.7 3.11 7.89 2.89 YES SR91W149 0 0.10000E+01 461980.6 3754737.7 257.9 3.11 7.89 2.89 YES SR91W150 0 0.10000E+01 461966.6 3754728.2 258.3 3.11 7.89 2.89 YES SR91W151 0 0.10000E+01 461952.6 3754718.6 258.6 3.11 7.89 2.89 YES SR91W152 0 0.10000E+01 461938.5 3754709.1 258.9 3.11 7.89 2.89 YES SR91W153 0 0.10000E+01 461924.5 3754699.5 259.2 3.11 7.89 2.89 YES SR91W154 0 0.10000E+01 461910.5 3754690.0 259.4 3.11 7.89 2.89 YES SR91W155 0 0.10000E+01 461896.4 3754680.4 258.5 3.11 7.89 2.89 YES SR91W156 0 0.10000E+01 461882.4 3754670.9 254.8 3.11 7.89 2.89 YES SR91W157 0 0.10000E+01 461868.4 3754661.3 256.8 3.11 7.89 2.89 YES SR91W158 0 0.10000E+01 461854.3 3754651.8 260.1 3.11 7.89 2.89 YES SR91W159 0 0.10000E+01 461840.3 3754642.3 260.0 3.11 7.89 2.89 YES SR91W160 0 0.10000E+01 461826.3 3754632.7 259.9 3.11 7.89 2.89 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 6
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SR91W161 0 0.10000E+01 461812.2 3754623.2 259.8 3.11 7.89 2.89 YES SR91W162 0 0.10000E+01 461798.2 3754613.6 259.5 3.11 7.89 2.89 YES SR91W163 0 0.10000E+01 461784.1 3754604.1 259.2 3.11 7.89 2.89 YES SR91W164 0 0.10000E+01 461770.1 3754594.5 258.9 3.11 7.89 2.89 YES SR91W165 0 0.10000E+01 461756.1 3754585.0 258.5 3.11 7.89 2.89 YES SR91W166 0 0.10000E+01 461742.0 3754575.4 258.2 3.11 7.89 2.89 YES SR91W167 0 0.10000E+01 461728.0 3754565.9 257.9 3.11 7.89 2.89 YES SR91W168 0 0.10000E+01 461714.0 3754556.3 257.6 3.11 7.89 2.89 YES SR91W169 0 0.10000E+01 461700.0 3754546.8 257.4 3.11 7.89 2.89 YES SR91W170 0 0.10000E+01 461685.9 3754537.3 257.2 3.11 7.89 2.89 YES SR91W171 0 0.10000E+01 461671.9 3754527.7 257.0 3.11 7.89 2.89 YES SR91W172 0 0.10000E+01 461657.8 3754518.2 256.8 3.11 7.89 2.89 YES SR91W173 0 0.10000E+01 461643.8 3754508.6 256.5 3.11 7.89 2.89 YES SR91W174 0 0.10000E+01 461629.8 3754499.1 256.3 3.11 7.89 2.89 YES SR91W175 0 0.10000E+01 461615.7 3754489.5 256.0 3.11 7.89 2.89 YES SR91W176 0 0.10000E+01 461601.7 3754480.0 255.8 3.11 7.89 2.89 YES SR91W177 0 0.10000E+01 461587.7 3754470.4 255.6 3.11 7.89 2.89 YES SR91W178 0 0.10000E+01 461573.6 3754460.9 255.4 3.11 7.89 2.89 YES SR91W179 0 0.10000E+01 461559.6 3754451.3 255.3 3.11 7.89 2.89 YES SR91W180 0 0.10000E+01 461545.6 3754441.8 255.2 3.11 7.89 2.89 YES SR91W181 0 0.10000E+01 461531.5 3754432.2 255.0 3.11 7.89 2.89 YES SR91W182 0 0.10000E+01 461517.5 3754422.7 254.9 3.11 7.89 2.89 YES SR91W183 0 0.10000E+01 461503.5 3754413.2 254.6 3.11 7.89 2.89 YES SR91W184 0 0.10000E+01 461489.4 3754403.6 254.4 3.11 7.89 2.89 YES SR91W185 0 0.10000E+01 461475.4 3754394.1 254.2 3.11 7.89 2.89 YES SR91W186 0 0.10000E+01 461461.4 3754384.5 253.9 3.11 7.89 2.89 YES SR91W187 0 0.10000E+01 461447.3 3754375.0 253.6 3.11 7.89 2.89 YES SR91W188 0 0.10000E+01 461433.3 3754365.4 253.2 3.11 7.89 2.89 YES SR91W189 0 0.10000E+01 461419.3 3754355.9 252.8 3.11 7.89 2.89 YES SR91W190 0 0.10000E+01 461405.2 3754346.3 252.4 3.11 7.89 2.89 YES SR91W191 0 0.10000E+01 461391.2 3754336.8 252.1 3.11 7.89 2.89 YES SR91W192 0 0.10000E+01 461377.2 3754327.2 251.8 3.11 7.89 2.89 YES SR91W193 0 0.10000E+01 461363.1 3754317.7 251.5 3.11 7.89 2.89 YES SR91W194 0 0.10000E+01 461349.1 3754308.2 251.3 3.11 7.89 2.89 YES SR91W195 0 0.10000E+01 461335.1 3754298.6 251.2 3.11 7.89 2.89 YES SR91W196 0 0.10000E+01 461321.0 3754289.1 251.1 3.11 7.89 2.89 YES SR91W197 0 0.10000E+01 461307.0 3754279.5 251.0 3.11 7.89 2.89 YES SR91W198 0 0.10000E+01 461293.0 3754270.0 250.8 3.11 7.89 2.89 YES SR91W199 0 0.10000E+01 461278.9 3754260.4 250.6 3.11 7.89 2.89 YES SR91W200 0 0.10000E+01 461264.9 3754250.9 250.4 3.11 7.89 2.89 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 7
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SR91W201 0 0.10000E+01 461250.9 3754241.3 250.1 3.11 7.89 2.89 YES SR91W202 0 0.10000E+01 461236.8 3754231.8 249.7 3.11 7.89 2.89 YES SR91W203 0 0.10000E+01 461222.8 3754222.2 249.5 3.11 7.89 2.89 YES SR91W204 0 0.10000E+01 461208.8 3754212.7 250.4 3.11 7.89 2.89 YES SR91W205 0 0.10000E+01 461194.7 3754203.2 251.0 3.11 7.89 2.89 YES SR91W206 0 0.10000E+01 461180.7 3754193.6 249.8 3.11 7.89 2.89 YES SR91W207 0 0.10000E+01 461166.7 3754184.1 249.0 3.11 7.89 2.89 YES SR91W208 0 0.10000E+01 461152.6 3754174.5 249.0 3.11 7.89 2.89 YES SR91W209 0 0.10000E+01 461138.6 3754165.0 248.9 3.11 7.89 2.89 YES SR91W210 0 0.10000E+01 461124.5 3754155.4 248.6 3.11 7.89 2.89 YES SR91W211 0 0.10000E+01 461110.5 3754145.9 248.4 3.11 7.89 2.89 YES SR91W212 0 0.10000E+01 461096.5 3754136.3 248.2 3.11 7.89 2.89 YES SR91W213 0 0.10000E+01 461082.5 3754126.8 248.0 3.11 7.89 2.89 YES SR91W214 0 0.10000E+01 461068.4 3754117.2 247.8 3.11 7.89 2.89 YES SR91W215 0 0.10000E+01 461054.4 3754107.7 247.8 3.11 7.89 2.89 YES SR91W216 0 0.10000E+01 461040.3 3754098.1 247.8 3.11 7.89 2.89 YES SR91W217 0 0.10000E+01 461026.3 3754088.6 247.9 3.11 7.89 2.89 YES SR91W218 0 0.10000E+01 461012.3 3754079.1 247.9 3.11 7.89 2.89 YES SR91W219 0 0.10000E+01 460998.2 3754069.5 247.9 3.11 7.89 2.89 YES SR91W220 0 0.10000E+01 460984.2 3754060.0 248.0 3.11 7.89 2.89 YES SR91W221 0 0.10000E+01 460970.2 3754050.4 248.0 3.11 7.89 2.89 YES SR91W222 0 0.10000E+01 460956.1 3754040.9 248.1 3.11 7.89 2.89 YES SR91W223 0 0.10000E+01 460942.1 3754031.3 248.1 3.11 7.89 2.89 YES SR91W224 0 0.10000E+01 460928.1 3754021.8 248.2 3.11 7.89 2.89 YES SR91W225 0 0.10000E+01 460914.0 3754012.2 248.2 3.11 7.89 2.89 YES SR91W226 0 0.10000E+01 460900.0 3754002.7 248.2 3.11 7.89 2.89 YES SR91W227 0 0.10000E+01 460886.0 3753993.1 248.2 3.11 7.89 2.89 YES SR91W228 0 0.10000E+01 460871.9 3753983.6 248.3 3.11 7.89 2.89 YES SR91W229 0 0.10000E+01 460857.9 3753974.1 248.3 3.11 7.89 2.89 YES SR91W230 0 0.10000E+01 460843.9 3753964.5 248.3 3.11 7.89 2.89 YES SR91W231 0 0.10000E+01 460829.8 3753955.0 248.3 3.11 7.89 2.89 YES SR91W232 0 0.10000E+01 460815.8 3753945.4 248.3 3.11 7.89 2.89 YES SR91E001 0 0.10000E+01 464019.5 3756212.6 268.1 3.11 7.89 2.89 YES SR91E002 0 0.10000E+01 464006.6 3756201.6 267.8 3.11 7.89 2.89 YES SR91E003 0 0.10000E+01 463993.7 3756190.6 267.4 3.11 7.89 2.89 YES SR91E004 0 0.10000E+01 463980.7 3756179.6 267.0 3.11 7.89 2.89 YES SR91E005 0 0.10000E+01 463967.8 3756168.6 266.6 3.11 7.89 2.89 YES SR91E006 0 0.10000E+01 463954.9 3756157.6 266.1 3.11 7.89 2.89 YES SR91E007 0 0.10000E+01 463941.9 3756146.6 265.7 3.11 7.89 2.89 YES SR91E008 0 0.10000E+01 463929.0 3756135.6 265.3 3.11 7.89 2.89 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 8
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SR91E009 0 0.10000E+01 463916.1 3756124.6 264.9 3.11 7.89 2.89 YES SR91E010 0 0.10000E+01 463903.1 3756113.6 264.7 3.11 7.89 2.89 YES SR91E011 0 0.10000E+01 463890.2 3756102.6 264.4 3.11 7.89 2.89 YES SR91E012 0 0.10000E+01 463877.3 3756091.6 264.3 3.11 7.89 2.89 YES SR91E013 0 0.10000E+01 463864.4 3756080.6 264.2 3.11 7.89 2.89 YES SR91E014 0 0.10000E+01 463851.4 3756069.7 264.1 3.11 7.89 2.89 YES SR91E015 0 0.10000E+01 463838.5 3756058.7 264.1 3.11 7.89 2.89 YES SR91E016 0 0.10000E+01 463825.6 3756047.7 264.2 3.11 7.89 2.89 YES SR91E017 0 0.10000E+01 463812.6 3756036.7 264.3 3.11 7.89 2.89 YES SR91E018 0 0.10000E+01 463799.7 3756025.7 264.4 3.11 7.89 2.89 YES SR91E019 0 0.10000E+01 463786.8 3756014.7 264.7 3.11 7.89 2.89 YES SR91E020 0 0.10000E+01 463773.8 3756003.7 264.9 3.11 7.89 2.89 YES SR91E021 0 0.10000E+01 463760.9 3755992.7 265.3 3.11 7.89 2.89 YES SR91E022 0 0.10000E+01 463748.0 3755981.7 265.7 3.11 7.89 2.89 YES SR91E023 0 0.10000E+01 463735.0 3755970.7 266.1 3.11 7.89 2.89 YES SR91E024 0 0.10000E+01 463722.1 3755959.7 266.6 3.11 7.89 2.89 YES SR91E025 0 0.10000E+01 463709.2 3755948.7 267.1 3.11 7.89 2.89 YES SR91E026 0 0.10000E+01 463696.3 3755937.7 267.7 3.11 7.89 2.89 YES SR91E027 0 0.10000E+01 463683.3 3755926.7 268.2 3.11 7.89 2.89 YES SR91E028 0 0.10000E+01 463670.4 3755915.7 268.6 3.11 7.89 2.89 YES SR91E029 0 0.10000E+01 463657.5 3755904.7 269.0 3.11 7.89 2.89 YES SR91E030 0 0.10000E+01 463644.5 3755893.8 269.4 3.11 7.89 2.89 YES SR91E031 0 0.10000E+01 463631.6 3755882.8 269.7 3.11 7.89 2.89 YES SR91E032 0 0.10000E+01 463618.7 3755871.8 269.9 3.11 7.89 2.89 YES SR91E033 0 0.10000E+01 463605.7 3755860.8 269.7 3.11 7.89 2.89 YES SR91E034 0 0.10000E+01 463592.8 3755849.8 264.6 3.11 7.89 2.89 YES SR91E035 0 0.10000E+01 463579.9 3755838.8 267.3 3.11 7.89 2.89 YES SR91E036 0 0.10000E+01 463567.0 3755827.8 270.2 3.11 7.89 2.89 YES SR91E037 0 0.10000E+01 463554.0 3755816.8 270.1 3.11 7.89 2.89 YES SR91E038 0 0.10000E+01 463541.1 3755805.8 269.9 3.11 7.89 2.89 YES SR91E039 0 0.10000E+01 463528.2 3755794.8 269.8 3.11 7.89 2.89 YES SR91E040 0 0.10000E+01 463515.2 3755783.8 269.5 3.11 7.89 2.89 YES SR91E041 0 0.10000E+01 463502.3 3755772.8 269.2 3.11 7.89 2.89 YES SR91E042 0 0.10000E+01 463489.4 3755761.8 268.8 3.11 7.89 2.89 YES SR91E043 0 0.10000E+01 463476.4 3755750.8 268.4 3.11 7.89 2.89 YES SR91E044 0 0.10000E+01 463463.5 3755739.8 267.9 3.11 7.89 2.89 YES SR91E045 0 0.10000E+01 463450.6 3755728.8 267.5 3.11 7.89 2.89 YES SR91E046 0 0.10000E+01 463437.6 3755717.8 267.2 3.11 7.89 2.89 YES SR91E047 0 0.10000E+01 463424.7 3755706.8 266.9 3.11 7.89 2.89 YES SR91E048 0 0.10000E+01 463411.8 3755695.9 266.6 3.11 7.89 2.89 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 9
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SR91E049 0 0.10000E+01 463398.8 3755684.9 266.4 3.11 7.89 2.89 YES SR91E050 0 0.10000E+01 463385.9 3755673.9 266.2 3.11 7.89 2.89 YES SR91E051 0 0.10000E+01 463373.0 3755662.9 266.1 3.11 7.89 2.89 YES SR91E052 0 0.10000E+01 463360.0 3755651.9 266.0 3.11 7.89 2.89 YES SR91E053 0 0.10000E+01 463347.1 3755640.9 265.9 3.11 7.89 2.89 YES SR91E054 0 0.10000E+01 463334.2 3755629.9 265.8 3.11 7.89 2.89 YES SR91E055 0 0.10000E+01 463321.3 3755618.9 265.8 3.11 7.89 2.89 YES SR91E056 0 0.10000E+01 463308.3 3755607.9 265.7 3.11 7.89 2.89 YES SR91E057 0 0.10000E+01 463295.4 3755596.9 265.6 3.11 7.89 2.89 YES SR91E058 0 0.10000E+01 463282.5 3755585.9 265.6 3.11 7.89 2.89 YES SR91E059 0 0.10000E+01 463269.5 3755574.9 265.5 3.11 7.89 2.89 YES SR91E060 0 0.10000E+01 463256.0 3755564.7 265.4 3.11 7.89 2.89 YES SR91E061 0 0.10000E+01 463242.0 3755555.2 265.3 3.11 7.89 2.89 YES SR91E062 0 0.10000E+01 463227.9 3755545.7 265.3 3.11 7.89 2.89 YES SR91E063 0 0.10000E+01 463213.8 3755536.3 265.2 3.11 7.89 2.89 YES SR91E064 0 0.10000E+01 463199.7 3755526.8 265.1 3.11 7.89 2.89 YES SR91E065 0 0.10000E+01 463185.6 3755517.3 265.0 3.11 7.89 2.89 YES SR91E066 0 0.10000E+01 463171.5 3755507.8 264.9 3.11 7.89 2.89 YES SR91E067 0 0.10000E+01 463157.5 3755498.4 264.9 3.11 7.89 2.89 YES SR91E068 0 0.10000E+01 463143.4 3755488.9 264.8 3.11 7.89 2.89 YES SR91E069 0 0.10000E+01 463129.3 3755479.4 264.7 3.11 7.89 2.89 YES SR91E070 0 0.10000E+01 463115.2 3755469.9 264.6 3.11 7.89 2.89 YES SR91E071 0 0.10000E+01 463101.1 3755460.5 264.5 3.11 7.89 2.89 YES SR91E072 0 0.10000E+01 463087.0 3755451.0 264.4 3.11 7.89 2.89 YES SR91E073 0 0.10000E+01 463073.0 3755441.5 264.3 3.11 7.89 2.89 YES SR91E074 0 0.10000E+01 463058.9 3755432.1 264.2 3.11 7.89 2.89 YES SR91E075 0 0.10000E+01 463044.8 3755422.6 264.2 3.11 7.89 2.89 YES SR91E076 0 0.10000E+01 463030.7 3755413.1 264.1 3.11 7.89 2.89 YES SR91E077 0 0.10000E+01 463016.6 3755403.6 264.0 3.11 7.89 2.89 YES SR91E078 0 0.10000E+01 463002.5 3755394.2 264.0 3.11 7.89 2.89 YES SR91E079 0 0.10000E+01 462988.5 3755384.7 263.9 3.11 7.89 2.89 YES SR91E080 0 0.10000E+01 462974.4 3755375.2 263.8 3.11 7.89 2.89 YES SR91E081 0 0.10000E+01 462960.3 3755365.8 263.7 3.11 7.89 2.89 YES SR91E082 0 0.10000E+01 462946.2 3755356.3 263.7 3.11 7.89 2.89 YES SR91E083 0 0.10000E+01 462932.1 3755346.8 263.6 3.11 7.89 2.89 YES SR91E084 0 0.10000E+01 462918.0 3755337.3 263.5 3.11 7.89 2.89 YES SR91E085 0 0.10000E+01 462904.0 3755327.9 263.4 3.11 7.89 2.89 YES SR91E086 0 0.10000E+01 462889.9 3755318.4 263.4 3.11 7.89 2.89 YES SR91E087 0 0.10000E+01 462875.8 3755308.9 263.3 3.11 7.89 2.89 YES SR91E088 0 0.10000E+01 462861.7 3755299.4 263.2 3.11 7.89 2.89 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 10
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SR91E089 0 0.10000E+01 462847.6 3755290.0 263.2 3.11 7.89 2.89 YES SR91E090 0 0.10000E+01 462833.5 3755280.5 263.1 3.11 7.89 2.89 YES SR91E091 0 0.10000E+01 462819.5 3755271.0 263.1 3.11 7.89 2.89 YES SR91E092 0 0.10000E+01 462805.4 3755261.5 263.1 3.11 7.89 2.89 YES SR91E093 0 0.10000E+01 462791.3 3755252.1 263.1 3.11 7.89 2.89 YES SR91E094 0 0.10000E+01 462777.2 3755242.6 263.2 3.11 7.89 2.89 YES SR91E095 0 0.10000E+01 462763.1 3755233.1 263.4 3.11 7.89 2.89 YES SR91E096 0 0.10000E+01 462749.0 3755223.7 263.6 3.11 7.89 2.89 YES SR91E097 0 0.10000E+01 462735.0 3755214.2 263.8 3.11 7.89 2.89 YES SR91E098 0 0.10000E+01 462720.9 3755204.7 264.1 3.11 7.89 2.89 YES SR91E099 0 0.10000E+01 462706.8 3755195.2 264.5 3.11 7.89 2.89 YES SR91E100 0 0.10000E+01 462692.7 3755185.8 264.8 3.11 7.89 2.89 YES SR91E101 0 0.10000E+01 462678.6 3755176.3 265.1 3.11 7.89 2.89 YES SR91E102 0 0.10000E+01 462664.5 3755166.8 265.3 3.11 7.89 2.89 YES SR91E103 0 0.10000E+01 462650.5 3755157.3 265.5 3.11 7.89 2.89 YES SR91E104 0 0.10000E+01 462636.4 3755147.9 265.6 3.11 7.89 2.89 YES SR91E105 0 0.10000E+01 462622.3 3755138.4 265.7 3.11 7.89 2.89 YES SR91E106 0 0.10000E+01 462608.2 3755128.9 265.6 3.11 7.89 2.89 YES SR91E107 0 0.10000E+01 462594.1 3755119.5 261.1 3.11 7.89 2.89 YES SR91E108 0 0.10000E+01 462580.0 3755110.0 259.5 3.11 7.89 2.89 YES SR91E109 0 0.10000E+01 462566.0 3755100.5 264.8 3.11 7.89 2.89 YES SR91E110 0 0.10000E+01 462551.9 3755091.0 265.2 3.11 7.89 2.89 YES SR91E111 0 0.10000E+01 462537.8 3755081.6 264.9 3.11 7.89 2.89 YES SR91E112 0 0.10000E+01 462523.7 3755072.1 264.6 3.11 7.89 2.89 YES SR91E113 0 0.10000E+01 462509.6 3755062.6 264.2 3.11 7.89 2.89 YES SR91E114 0 0.10000E+01 462495.5 3755053.1 263.8 3.11 7.89 2.89 YES SR91E115 0 0.10000E+01 462481.5 3755043.7 263.4 3.11 7.89 2.89 YES SR91E116 0 0.10000E+01 462467.4 3755034.2 262.9 3.11 7.89 2.89 YES SR91E117 0 0.10000E+01 462453.3 3755024.7 262.3 3.11 7.89 2.89 YES SR91E118 0 0.10000E+01 462439.2 3755015.3 261.7 3.11 7.89 2.89 YES SR91E119 0 0.10000E+01 462425.1 3755005.8 261.2 3.11 7.89 2.89 YES SR91E120 0 0.10000E+01 462411.0 3754996.3 260.7 3.11 7.89 2.89 YES SR91E121 0 0.10000E+01 462397.0 3754986.8 260.3 3.11 7.89 2.89 YES SR91E122 0 0.10000E+01 462382.9 3754977.4 259.9 3.11 7.89 2.89 YES SR91E123 0 0.10000E+01 462368.8 3754967.9 259.6 3.11 7.89 2.89 YES SR91E124 0 0.10000E+01 462354.7 3754958.4 259.3 3.11 7.89 2.89 YES SR91E125 0 0.10000E+01 462340.6 3754948.9 259.1 3.11 7.89 2.89 YES SR91E126 0 0.10000E+01 462326.5 3754939.5 258.9 3.11 7.89 2.89 YES SR91E127 0 0.10000E+01 462312.5 3754930.0 258.7 3.11 7.89 2.89 YES SR91E128 0 0.10000E+01 462298.4 3754920.5 258.6 3.11 7.89 2.89 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 11
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SR91E129 0 0.10000E+01 462284.3 3754911.1 258.5 3.11 7.89 2.89 YES SR91E130 0 0.10000E+01 462270.2 3754901.6 258.4 3.11 7.89 2.89 YES SR91E131 0 0.10000E+01 462256.1 3754892.1 258.4 3.11 7.89 2.89 YES SR91E132 0 0.10000E+01 462242.0 3754882.6 258.3 3.11 7.89 2.89 YES SR91E133 0 0.10000E+01 462228.0 3754873.2 258.2 3.11 7.89 2.89 YES SR91E134 0 0.10000E+01 462213.9 3754863.7 258.1 3.11 7.89 2.89 YES SR91E135 0 0.10000E+01 462199.8 3754854.2 258.0 3.11 7.89 2.89 YES SR91E136 0 0.10000E+01 462185.7 3754844.8 257.9 3.11 7.89 2.89 YES SR91E137 0 0.10000E+01 462171.6 3754835.3 257.9 3.11 7.89 2.89 YES SR91E138 0 0.10000E+01 462157.5 3754825.8 257.8 3.11 7.89 2.89 YES SR91E139 0 0.10000E+01 462143.5 3754816.3 257.7 3.11 7.89 2.89 YES SR91E140 0 0.10000E+01 462129.4 3754806.8 257.6 3.11 7.89 2.89 YES SR91E141 0 0.10000E+01 462115.3 3754797.4 257.5 3.11 7.89 2.89 YES SR91E142 0 0.10000E+01 462101.2 3754787.9 257.5 3.11 7.89 2.89 YES SR91E143 0 0.10000E+01 462087.1 3754778.4 257.6 3.11 7.89 2.89 YES SR91E144 0 0.10000E+01 462073.0 3754769.0 257.7 3.11 7.89 2.89 YES SR91E145 0 0.10000E+01 462059.0 3754759.5 257.9 3.11 7.89 2.89 YES SR91E146 0 0.10000E+01 462044.9 3754750.0 258.1 3.11 7.89 2.89 YES SR91E147 0 0.10000E+01 462030.8 3754740.5 258.4 3.11 7.89 2.89 YES SR91E148 0 0.10000E+01 462016.7 3754731.1 258.8 3.11 7.89 2.89 YES SR91E149 0 0.10000E+01 462002.6 3754721.6 259.3 3.11 7.89 2.89 YES SR91E150 0 0.10000E+01 461988.5 3754712.1 259.8 3.11 7.89 2.89 YES SR91E151 0 0.10000E+01 461974.5 3754702.6 260.2 3.11 7.89 2.89 YES SR91E152 0 0.10000E+01 461960.4 3754693.2 260.5 3.11 7.89 2.89 YES SR91E153 0 0.10000E+01 461946.3 3754683.7 260.9 3.11 7.89 2.89 YES SR91E154 0 0.10000E+01 461932.2 3754674.2 261.1 3.11 7.89 2.89 YES SR91E155 0 0.10000E+01 461918.1 3754664.8 261.2 3.11 7.89 2.89 YES SR91E156 0 0.10000E+01 461904.0 3754655.3 256.9 3.11 7.89 2.89 YES SR91E157 0 0.10000E+01 461890.0 3754645.8 255.5 3.11 7.89 2.89 YES SR91E158 0 0.10000E+01 461875.9 3754636.3 260.1 3.11 7.89 2.89 YES SR91E159 0 0.10000E+01 461861.8 3754626.9 261.6 3.11 7.89 2.89 YES SR91E160 0 0.10000E+01 461847.7 3754617.4 261.6 3.11 7.89 2.89 YES SR91E161 0 0.10000E+01 461833.6 3754607.9 261.5 3.11 7.89 2.89 YES SR91E162 0 0.10000E+01 461819.5 3754598.4 261.3 3.11 7.89 2.89 YES SR91E163 0 0.10000E+01 461805.5 3754589.0 261.0 3.11 7.89 2.89 YES SR91E164 0 0.10000E+01 461791.4 3754579.5 260.8 3.11 7.89 2.89 YES SR91E165 0 0.10000E+01 461777.3 3754570.0 260.5 3.11 7.89 2.89 YES SR91E166 0 0.10000E+01 461763.2 3754560.6 260.2 3.11 7.89 2.89 YES SR91E167 0 0.10000E+01 461749.1 3754551.1 259.9 3.11 7.89 2.89 YES SR91E168 0 0.10000E+01 461735.0 3754541.6 259.6 3.11 7.89 2.89 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 12
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SR91E169 0 0.10000E+01 461721.0 3754532.1 259.3 3.11 7.89 2.89 YES SR91E170 0 0.10000E+01 461706.9 3754522.7 259.0 3.11 7.89 2.89 YES SR91E171 0 0.10000E+01 461692.8 3754513.2 258.7 3.11 7.89 2.89 YES SR91E172 0 0.10000E+01 461678.7 3754503.7 258.4 3.11 7.89 2.89 YES SR91E173 0 0.10000E+01 461664.6 3754494.2 258.1 3.11 7.89 2.89 YES SR91E174 0 0.10000E+01 461650.5 3754484.8 257.8 3.11 7.89 2.89 YES SR91E175 0 0.10000E+01 461636.5 3754475.3 257.5 3.11 7.89 2.89 YES SR91E176 0 0.10000E+01 461622.4 3754465.8 257.2 3.11 7.89 2.89 YES SR91E177 0 0.10000E+01 461608.3 3754456.4 256.9 3.11 7.89 2.89 YES SR91E178 0 0.10000E+01 461594.2 3754446.9 256.7 3.11 7.89 2.89 YES SR91E179 0 0.10000E+01 461580.1 3754437.4 256.4 3.11 7.89 2.89 YES SR91E180 0 0.10000E+01 461566.0 3754427.9 256.1 3.11 7.89 2.89 YES SR91E181 0 0.10000E+01 461552.0 3754418.5 255.8 3.11 7.89 2.89 YES SR91E182 0 0.10000E+01 461537.9 3754409.0 255.5 3.11 7.89 2.89 YES SR91E183 0 0.10000E+01 461523.8 3754399.5 255.2 3.11 7.89 2.89 YES SR91E184 0 0.10000E+01 461509.7 3754390.0 254.8 3.11 7.89 2.89 YES SR91E185 0 0.10000E+01 461495.6 3754380.6 254.5 3.11 7.89 2.89 YES SR91E186 0 0.10000E+01 461481.5 3754371.1 254.1 3.11 7.89 2.89 YES SR91E187 0 0.10000E+01 461467.5 3754361.6 253.8 3.11 7.89 2.89 YES SR91E188 0 0.10000E+01 461453.4 3754352.2 253.4 3.11 7.89 2.89 YES SR91E189 0 0.10000E+01 461439.3 3754342.7 253.1 3.11 7.89 2.89 YES SR91E190 0 0.10000E+01 461425.2 3754333.2 252.7 3.11 7.89 2.89 YES SR91E191 0 0.10000E+01 461411.1 3754323.7 252.3 3.11 7.89 2.89 YES SR91E192 0 0.10000E+01 461397.0 3754314.3 252.0 3.11 7.89 2.89 YES SR91E193 0 0.10000E+01 461383.0 3754304.8 251.6 3.11 7.89 2.89 YES SR91E194 0 0.10000E+01 461368.9 3754295.3 251.2 3.11 7.89 2.89 YES SR91E195 0 0.10000E+01 461354.8 3754285.8 250.9 3.11 7.89 2.89 YES SR91E196 0 0.10000E+01 461340.7 3754276.4 250.5 3.11 7.89 2.89 YES SR91E197 0 0.10000E+01 461326.6 3754266.9 250.2 3.11 7.89 2.89 YES SR91E198 0 0.10000E+01 461312.5 3754257.4 249.8 3.11 7.89 2.89 YES SR91E199 0 0.10000E+01 461298.5 3754248.0 249.5 3.11 7.89 2.89 YES SR91E200 0 0.10000E+01 461284.4 3754238.5 249.1 3.11 7.89 2.89 YES SR91E201 0 0.10000E+01 461270.3 3754229.0 248.8 3.11 7.89 2.89 YES SR91E202 0 0.10000E+01 461256.2 3754219.5 248.6 3.11 7.89 2.89 YES SR91E203 0 0.10000E+01 461242.1 3754210.1 248.3 3.11 7.89 2.89 YES SR91E204 0 0.10000E+01 461228.0 3754200.6 248.1 3.11 7.89 2.89 YES SR91E205 0 0.10000E+01 461214.0 3754191.1 247.9 3.11 7.89 2.89 YES SR91E206 0 0.10000E+01 461199.9 3754181.6 247.8 3.11 7.89 2.89 YES SR91E207 0 0.10000E+01 461185.8 3754172.2 247.7 3.11 7.89 2.89 YES SR91E208 0 0.10000E+01 461171.7 3754162.7 247.6 3.11 7.89 2.89 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 13
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SR91E209 0 0.10000E+01 461157.6 3754153.2 247.5 3.11 7.89 2.89 YES SR91E210 0 0.10000E+01 461143.5 3754143.8 247.5 3.11 7.89 2.89 YES SR91E211 0 0.10000E+01 461129.5 3754134.3 247.5 3.11 7.89 2.89 YES SR91E212 0 0.10000E+01 461115.4 3754124.8 247.5 3.11 7.89 2.89 YES SR91E213 0 0.10000E+01 461101.3 3754115.3 247.6 3.11 7.89 2.89 YES SR91E214 0 0.10000E+01 461087.2 3754105.9 247.6 3.11 7.89 2.89 YES SR91E215 0 0.10000E+01 461073.1 3754096.4 247.7 3.11 7.89 2.89 YES SR91E216 0 0.10000E+01 461059.0 3754086.9 247.7 3.11 7.89 2.89 YES SR91E217 0 0.10000E+01 461045.0 3754077.4 247.7 3.11 7.89 2.89 YES SR91E218 0 0.10000E+01 461030.9 3754068.0 247.8 3.11 7.89 2.89 YES SR91E219 0 0.10000E+01 461016.8 3754058.5 247.8 3.11 7.89 2.89 YES SR91E220 0 0.10000E+01 461002.7 3754049.0 247.8 3.11 7.89 2.89 YES SR91E221 0 0.10000E+01 460988.6 3754039.5 247.9 3.11 7.89 2.89 YES SR91E222 0 0.10000E+01 460974.5 3754030.1 247.9 3.11 7.89 2.89 YES SR91E223 0 0.10000E+01 460960.5 3754020.6 247.9 3.11 7.89 2.89 YES SR91E224 0 0.10000E+01 460946.4 3754011.1 248.0 3.11 7.89 2.89 YES SR91E225 0 0.10000E+01 460932.3 3754001.7 248.0 3.11 7.89 2.89 YES SR91E226 0 0.10000E+01 460918.2 3753992.2 248.0 3.11 7.89 2.89 YES SR91E227 0 0.10000E+01 460904.1 3753982.7 248.1 3.11 7.89 2.89 YES SR91E228 0 0.10000E+01 460890.0 3753973.2 248.1 3.11 7.89 2.89 YES SR91E229 0 0.10000E+01 460876.0 3753963.8 248.2 3.11 7.89 2.89 YES SR91E230 0 0.10000E+01 460861.9 3753954.3 248.2 3.11 7.89 2.89 YES SR91E231 0 0.10000E+01 460847.8 3753944.8 248.2 3.11 7.89 2.89 YES SR91E232 0 0.10000E+01 460833.7 3753935.3 248.2 3.11 7.89 2.89 YES SR91E233 0 0.10000E+01 460819.6 3753925.9 248.3 3.11 7.89 2.89 YES RR_001 0 0.10000E+01 464084.2 3756025.1 266.4 3.89 4.21 3.62 YES RR_002 0 0.10000E+01 464077.4 3756019.2 266.4 3.89 4.21 3.62 YES RR_003 0 0.10000E+01 464070.5 3756013.3 266.5 3.89 4.21 3.62 YES RR_004 0 0.10000E+01 464063.7 3756007.4 266.9 3.89 4.21 3.62 YES RR_005 0 0.10000E+01 464056.8 3756001.4 266.9 3.89 4.21 3.62 YES RR_006 0 0.10000E+01 464050.0 3755995.5 267.1 3.89 4.21 3.62 YES RR_007 0 0.10000E+01 464043.2 3755989.6 267.0 3.89 4.21 3.62 YES RR_008 0 0.10000E+01 464036.3 3755983.7 267.0 3.89 4.21 3.62 YES RR_009 0 0.10000E+01 464029.5 3755977.8 267.0 3.89 4.21 3.62 YES RR_010 0 0.10000E+01 464022.6 3755971.9 267.1 3.89 4.21 3.62 YES RR_011 0 0.10000E+01 464015.8 3755965.9 267.1 3.89 4.21 3.62 YES RR_012 0 0.10000E+01 464008.9 3755960.0 267.1 3.89 4.21 3.62 YES RR_013 0 0.10000E+01 464002.1 3755954.1 267.1 3.89 4.21 3.62 YES RR_014 0 0.10000E+01 463995.2 3755948.2 267.1 3.89 4.21 3.62 YES RR_015 0 0.10000E+01 463988.4 3755942.3 267.1 3.89 4.21 3.62 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 14
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - RR_016 0 0.10000E+01 463981.6 3755936.3 267.2 3.89 4.21 3.62 YES RR_017 0 0.10000E+01 463974.7 3755930.4 267.2 3.89 4.21 3.62 YES RR_018 0 0.10000E+01 463967.9 3755924.5 267.2 3.89 4.21 3.62 YES RR_019 0 0.10000E+01 463961.0 3755918.6 267.2 3.89 4.21 3.62 YES RR_020 0 0.10000E+01 463954.2 3755912.7 267.3 3.89 4.21 3.62 YES RR_021 0 0.10000E+01 463947.3 3755906.8 267.3 3.89 4.21 3.62 YES RR_022 0 0.10000E+01 463940.5 3755900.8 267.3 3.89 4.21 3.62 YES RR_023 0 0.10000E+01 463933.6 3755894.9 267.4 3.89 4.21 3.62 YES RR_024 0 0.10000E+01 463926.8 3755889.0 267.4 3.89 4.21 3.62 YES RR_025 0 0.10000E+01 463920.0 3755883.1 267.5 3.89 4.21 3.62 YES RR_026 0 0.10000E+01 463913.1 3755877.2 267.5 3.89 4.21 3.62 YES RR_027 0 0.10000E+01 463906.3 3755871.3 267.6 3.89 4.21 3.62 YES RR_028 0 0.10000E+01 463899.4 3755865.3 267.6 3.89 4.21 3.62 YES RR_029 0 0.10000E+01 463892.6 3755859.4 267.6 3.89 4.21 3.62 YES RR_030 0 0.10000E+01 463885.7 3755853.5 267.7 3.89 4.21 3.62 YES RR_031 0 0.10000E+01 463878.9 3755847.6 267.6 3.89 4.21 3.62 YES RR_032 0 0.10000E+01 463872.0 3755841.7 267.7 3.89 4.21 3.62 YES RR_033 0 0.10000E+01 463865.2 3755835.8 267.7 3.89 4.21 3.62 YES RR_034 0 0.10000E+01 463858.3 3755829.8 267.7 3.89 4.21 3.62 YES RR_035 0 0.10000E+01 463851.5 3755823.9 267.7 3.89 4.21 3.62 YES RR_036 0 0.10000E+01 463844.7 3755818.0 267.8 3.89 4.21 3.62 YES RR_037 0 0.10000E+01 463837.8 3755812.1 267.9 3.89 4.21 3.62 YES RR_038 0 0.10000E+01 463831.0 3755806.2 267.8 3.89 4.21 3.62 YES RR_039 0 0.10000E+01 463824.1 3755800.2 267.9 3.89 4.21 3.62 YES RR_040 0 0.10000E+01 463817.3 3755794.3 267.9 3.89 4.21 3.62 YES RR_041 0 0.10000E+01 463810.4 3755788.4 267.9 3.89 4.21 3.62 YES RR_042 0 0.10000E+01 463803.6 3755782.5 267.9 3.89 4.21 3.62 YES RR_043 0 0.10000E+01 463796.8 3755776.6 268.0 3.89 4.21 3.62 YES RR_044 0 0.10000E+01 463789.9 3755770.7 268.0 3.89 4.21 3.62 YES RR_045 0 0.10000E+01 463783.1 3755764.7 268.0 3.89 4.21 3.62 YES RR_046 0 0.10000E+01 463776.2 3755758.8 268.1 3.89 4.21 3.62 YES RR_047 0 0.10000E+01 463769.4 3755752.9 268.1 3.89 4.21 3.62 YES RR_048 0 0.10000E+01 463762.5 3755747.0 268.0 3.89 4.21 3.62 YES RR_049 0 0.10000E+01 463755.7 3755741.1 268.1 3.89 4.21 3.62 YES RR_050 0 0.10000E+01 463748.8 3755735.2 268.0 3.89 4.21 3.62 YES RR_051 0 0.10000E+01 463742.0 3755729.2 268.0 3.89 4.21 3.62 YES RR_052 0 0.10000E+01 463735.1 3755723.3 268.0 3.89 4.21 3.62 YES RR_053 0 0.10000E+01 463728.3 3755717.4 268.0 3.89 4.21 3.62 YES RR_054 0 0.10000E+01 463721.5 3755711.5 268.1 3.89 4.21 3.62 YES RR_055 0 0.10000E+01 463714.6 3755705.6 268.2 3.89 4.21 3.62 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 15
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - RR_056 0 0.10000E+01 463707.8 3755699.6 268.5 3.89 4.21 3.62 YES RR_057 0 0.10000E+01 463700.9 3755693.7 268.6 3.89 4.21 3.62 YES RR_058 0 0.10000E+01 463694.1 3755687.8 268.7 3.89 4.21 3.62 YES RR_059 0 0.10000E+01 463687.2 3755681.9 268.6 3.89 4.21 3.62 YES RR_060 0 0.10000E+01 463680.4 3755676.0 268.3 3.89 4.21 3.62 YES RR_061 0 0.10000E+01 463673.5 3755670.1 268.0 3.89 4.21 3.62 YES RR_062 0 0.10000E+01 463666.7 3755664.1 268.0 3.89 4.21 3.62 YES RR_063 0 0.10000E+01 463659.9 3755658.2 268.0 3.89 4.21 3.62 YES RR_064 0 0.10000E+01 463653.0 3755652.3 268.1 3.89 4.21 3.62 YES RR_065 0 0.10000E+01 463646.2 3755646.4 268.1 3.89 4.21 3.62 YES RR_066 0 0.10000E+01 463639.3 3755640.5 268.1 3.89 4.21 3.62 YES RR_067 0 0.10000E+01 463632.5 3755634.6 268.0 3.89 4.21 3.62 YES RR_068 0 0.10000E+01 463625.6 3755628.6 268.1 3.89 4.21 3.62 YES RR_069 0 0.10000E+01 463618.8 3755622.7 268.1 3.89 4.21 3.62 YES RR_070 0 0.10000E+01 463612.0 3755616.8 268.2 3.89 4.21 3.62 YES RR_071 0 0.10000E+01 463605.1 3755610.9 268.3 3.89 4.21 3.62 YES RR_072 0 0.10000E+01 463598.3 3755605.0 268.3 3.89 4.21 3.62 YES RR_073 0 0.10000E+01 463591.4 3755599.0 268.4 3.89 4.21 3.62 YES RR_074 0 0.10000E+01 463584.6 3755593.1 268.4 3.89 4.21 3.62 YES RR_075 0 0.10000E+01 463577.7 3755587.2 268.4 3.89 4.21 3.62 YES RR_076 0 0.10000E+01 463570.9 3755581.3 268.4 3.89 4.21 3.62 YES RR_077 0 0.10000E+01 463564.0 3755575.4 268.4 3.89 4.21 3.62 YES RR_078 0 0.10000E+01 463557.2 3755569.5 268.4 3.89 4.21 3.62 YES RR_079 0 0.10000E+01 463550.3 3755563.5 268.4 3.89 4.21 3.62 YES RR_080 0 0.10000E+01 463543.5 3755557.6 268.4 3.89 4.21 3.62 YES RR_081 0 0.10000E+01 463536.7 3755551.7 268.4 3.89 4.21 3.62 YES RR_082 0 0.10000E+01 463529.8 3755545.8 268.4 3.89 4.21 3.62 YES RR_083 0 0.10000E+01 463523.0 3755539.9 268.4 3.89 4.21 3.62 YES RR_084 0 0.10000E+01 463516.1 3755534.0 268.5 3.89 4.21 3.62 YES RR_085 0 0.10000E+01 463509.3 3755528.0 268.5 3.89 4.21 3.62 YES RR_086 0 0.10000E+01 463502.4 3755522.1 268.5 3.89 4.21 3.62 YES RR_087 0 0.10000E+01 463495.6 3755516.2 268.6 3.89 4.21 3.62 YES RR_088 0 0.10000E+01 463488.8 3755510.3 268.6 3.89 4.21 3.62 YES RR_089 0 0.10000E+01 463481.9 3755504.4 268.6 3.89 4.21 3.62 YES RR_090 0 0.10000E+01 463475.1 3755498.4 268.6 3.89 4.21 3.62 YES RR_091 0 0.10000E+01 463468.2 3755492.5 268.6 3.89 4.21 3.62 YES RR_092 0 0.10000E+01 463461.4 3755486.6 268.6 3.89 4.21 3.62 YES RR_093 0 0.10000E+01 463454.5 3755480.7 268.5 3.89 4.21 3.62 YES RR_094 0 0.10000E+01 463447.7 3755474.8 268.5 3.89 4.21 3.62 YES RR_095 0 0.10000E+01 463440.8 3755468.9 268.5 3.89 4.21 3.62 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 16
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - RR_096 0 0.10000E+01 463434.0 3755462.9 268.4 3.89 4.21 3.62 YES RR_097 0 0.10000E+01 463427.1 3755457.0 268.4 3.89 4.21 3.62 YES RR_098 0 0.10000E+01 463420.3 3755451.1 268.4 3.89 4.21 3.62 YES RR_099 0 0.10000E+01 463413.5 3755445.2 268.5 3.89 4.21 3.62 YES RR_100 0 0.10000E+01 463406.6 3755439.3 268.5 3.89 4.21 3.62 YES RR_101 0 0.10000E+01 463399.8 3755433.4 268.5 3.89 4.21 3.62 YES RR_102 0 0.10000E+01 463392.9 3755427.4 268.7 3.89 4.21 3.62 YES RR_103 0 0.10000E+01 463386.1 3755421.5 268.8 3.89 4.21 3.62 YES RR_104 0 0.10000E+01 463379.2 3755415.6 268.9 3.89 4.21 3.62 YES RR_105 0 0.10000E+01 463372.4 3755409.7 268.8 3.89 4.21 3.62 YES RR_106 0 0.10000E+01 463365.5 3755403.8 268.6 3.89 4.21 3.62 YES RR_107 0 0.10000E+01 463358.7 3755397.8 268.5 3.89 4.21 3.62 YES RR_108 0 0.10000E+01 463351.8 3755391.9 268.4 3.89 4.21 3.62 YES RR_109 0 0.10000E+01 463345.0 3755386.0 268.4 3.89 4.21 3.62 YES RR_110 0 0.10000E+01 463338.2 3755380.1 268.4 3.89 4.21 3.62 YES RR_111 0 0.10000E+01 463331.3 3755374.2 268.4 3.89 4.21 3.62 YES RR_112 0 0.10000E+01 463324.5 3755368.3 268.4 3.89 4.21 3.62 YES RR_113 0 0.10000E+01 463317.6 3755362.3 268.4 3.89 4.21 3.62 YES RR_114 0 0.10000E+01 463310.8 3755356.4 268.4 3.89 4.21 3.62 YES RR_115 0 0.10000E+01 463303.9 3755350.5 268.3 3.89 4.21 3.62 YES RR_116 0 0.10000E+01 463297.1 3755344.6 268.4 3.89 4.21 3.62 YES RR_117 0 0.10000E+01 463290.2 3755338.7 268.3 3.89 4.21 3.62 YES RR_118 0 0.10000E+01 463283.4 3755332.8 268.4 3.89 4.21 3.62 YES RR_119 0 0.10000E+01 463276.6 3755326.8 268.3 3.89 4.21 3.62 YES RR_120 0 0.10000E+01 463269.7 3755320.9 268.2 3.89 4.21 3.62 YES RR_121 0 0.10000E+01 463262.9 3755315.0 268.2 3.89 4.21 3.62 YES RR_122 0 0.10000E+01 463256.0 3755309.1 268.2 3.89 4.21 3.62 YES RR_123 0 0.10000E+01 463249.2 3755303.2 268.3 3.89 4.21 3.62 YES RR_124 0 0.10000E+01 463242.3 3755297.3 268.2 3.89 4.21 3.62 YES RR_125 0 0.10000E+01 463235.5 3755291.3 268.2 3.89 4.21 3.62 YES RR_126 0 0.10000E+01 463228.6 3755285.4 268.2 3.89 4.21 3.62 YES RR_127 0 0.10000E+01 463221.8 3755279.5 268.2 3.89 4.21 3.62 YES RR_128 0 0.10000E+01 463215.0 3755273.6 268.2 3.89 4.21 3.62 YES RR_129 0 0.10000E+01 463208.1 3755267.7 268.1 3.89 4.21 3.62 YES RR_130 0 0.10000E+01 463201.3 3755261.8 268.2 3.89 4.21 3.62 YES RR_131 0 0.10000E+01 463194.4 3755255.8 268.1 3.89 4.21 3.62 YES RR_132 0 0.10000E+01 463187.6 3755249.9 268.1 3.89 4.21 3.62 YES RR_133 0 0.10000E+01 463180.7 3755244.0 268.1 3.89 4.21 3.62 YES RR_134 0 0.10000E+01 463173.9 3755238.1 268.1 3.89 4.21 3.62 YES RR_135 0 0.10000E+01 463167.0 3755232.2 268.1 3.89 4.21 3.62 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 17
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - RR_136 0 0.10000E+01 463160.2 3755226.2 268.0 3.89 4.21 3.62 YES RR_137 0 0.10000E+01 463153.4 3755220.3 268.0 3.89 4.21 3.62 YES RR_138 0 0.10000E+01 463146.5 3755214.4 267.9 3.89 4.21 3.62 YES RR_139 0 0.10000E+01 463139.7 3755208.5 267.9 3.89 4.21 3.62 YES RR_140 0 0.10000E+01 463132.8 3755202.6 267.9 3.89 4.21 3.62 YES RR_141 0 0.10000E+01 463126.0 3755196.7 267.8 3.89 4.21 3.62 YES RR_142 0 0.10000E+01 463119.1 3755190.7 267.8 3.89 4.21 3.62 YES RR_143 0 0.10000E+01 463112.3 3755184.8 267.7 3.89 4.21 3.62 YES RR_144 0 0.10000E+01 463105.5 3755178.9 267.8 3.89 4.21 3.62 YES RR_145 0 0.10000E+01 463098.6 3755173.0 267.7 3.89 4.21 3.62 YES RR_146 0 0.10000E+01 463091.8 3755167.1 267.6 3.89 4.21 3.62 YES RR_147 0 0.10000E+01 463084.9 3755161.1 267.5 3.89 4.21 3.62 YES RR_148 0 0.10000E+01 463078.1 3755155.2 267.4 3.89 4.21 3.62 YES RR_149 0 0.10000E+01 463071.2 3755149.3 267.4 3.89 4.21 3.62 YES RR_150 0 0.10000E+01 463064.4 3755143.4 267.3 3.89 4.21 3.62 YES RR_151 0 0.10000E+01 463057.5 3755137.5 267.2 3.89 4.21 3.62 YES RR_152 0 0.10000E+01 463050.7 3755131.6 267.1 3.89 4.21 3.62 YES RR_153 0 0.10000E+01 463043.8 3755125.6 267.1 3.89 4.21 3.62 YES RR_154 0 0.10000E+01 463037.0 3755119.7 267.0 3.89 4.21 3.62 YES RR_155 0 0.10000E+01 463030.2 3755113.8 266.9 3.89 4.21 3.62 YES RR_156 0 0.10000E+01 463023.3 3755107.9 266.9 3.89 4.21 3.62 YES RR_157 0 0.10000E+01 463016.5 3755102.0 266.7 3.89 4.21 3.62 YES RR_158 0 0.10000E+01 463009.6 3755096.1 266.7 3.89 4.21 3.62 YES RR_159 0 0.10000E+01 463002.8 3755090.1 266.6 3.89 4.21 3.62 YES RR_160 0 0.10000E+01 462995.9 3755084.2 266.5 3.89 4.21 3.62 YES RR_161 0 0.10000E+01 462989.1 3755078.3 266.4 3.89 4.21 3.62 YES RR_162 0 0.10000E+01 462982.2 3755072.4 266.3 3.89 4.21 3.62 YES RR_163 0 0.10000E+01 462975.4 3755066.5 266.3 3.89 4.21 3.62 YES RR_164 0 0.10000E+01 462968.6 3755060.5 266.2 3.89 4.21 3.62 YES RR_165 0 0.10000E+01 462961.7 3755054.6 266.1 3.89 4.21 3.62 YES RR_166 0 0.10000E+01 462954.9 3755048.7 266.0 3.89 4.21 3.62 YES RR_167 0 0.10000E+01 462948.0 3755042.8 265.8 3.89 4.21 3.62 YES RR_168 0 0.10000E+01 462941.2 3755036.9 265.8 3.89 4.21 3.62 YES RR_169 0 0.10000E+01 462934.3 3755031.0 265.7 3.89 4.21 3.62 YES RR_170 0 0.10000E+01 462927.5 3755025.0 265.6 3.89 4.21 3.62 YES RR_171 0 0.10000E+01 462920.6 3755019.1 265.5 3.89 4.21 3.62 YES RR_172 0 0.10000E+01 462913.8 3755013.2 265.4 3.89 4.21 3.62 YES RR_173 0 0.10000E+01 462907.0 3755007.3 265.3 3.89 4.21 3.62 YES RR_174 0 0.10000E+01 462900.1 3755001.4 265.2 3.89 4.21 3.62 YES RR_175 0 0.10000E+01 462893.3 3754995.5 265.1 3.89 4.21 3.62 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 18
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - RR_176 0 0.10000E+01 462886.4 3754989.5 265.0 3.89 4.21 3.62 YES RR_177 0 0.10000E+01 462879.6 3754983.6 264.9 3.89 4.21 3.62 YES RR_178 0 0.10000E+01 462872.7 3754977.7 264.8 3.89 4.21 3.62 YES RR_179 0 0.10000E+01 462865.9 3754971.8 264.7 3.89 4.21 3.62 YES RR_180 0 0.10000E+01 462859.0 3754965.9 264.6 3.89 4.21 3.62 YES RR_181 0 0.10000E+01 462852.2 3754959.9 264.4 3.89 4.21 3.62 YES RR_182 0 0.10000E+01 462845.3 3754954.0 264.4 3.89 4.21 3.62 YES RR_183 0 0.10000E+01 462838.5 3754948.1 264.4 3.89 4.21 3.62 YES RR_184 0 0.10000E+01 462831.7 3754942.2 264.3 3.89 4.21 3.62 YES RR_185 0 0.10000E+01 462824.8 3754936.3 264.2 3.89 4.21 3.62 YES RR_186 0 0.10000E+01 462818.0 3754930.4 264.1 3.89 4.21 3.62 YES RR_187 0 0.10000E+01 462811.1 3754924.4 264.1 3.89 4.21 3.62 YES RR_188 0 0.10000E+01 462804.3 3754918.5 263.9 3.89 4.21 3.62 YES RR_189 0 0.10000E+01 462797.4 3754912.6 263.9 3.89 4.21 3.62 YES RR_190 0 0.10000E+01 462790.6 3754906.7 263.8 3.89 4.21 3.62 YES RR_191 0 0.10000E+01 462783.8 3754900.8 263.8 3.89 4.21 3.62 YES RR_192 0 0.10000E+01 462776.9 3754894.9 263.8 3.89 4.21 3.62 YES RR_193 0 0.10000E+01 462770.1 3754888.9 263.8 3.89 4.21 3.62 YES RR_194 0 0.10000E+01 462763.2 3754883.0 264.1 3.89 4.21 3.62 YES RR_195 0 0.10000E+01 462756.4 3754877.1 264.2 3.89 4.21 3.62 YES RR_196 0 0.10000E+01 462749.5 3754871.2 264.3 3.89 4.21 3.62 YES RR_197 0 0.10000E+01 462742.7 3754865.3 264.2 3.89 4.21 3.62 YES RR_198 0 0.10000E+01 462735.8 3754859.4 264.0 3.89 4.21 3.62 YES RR_199 0 0.10000E+01 462729.0 3754853.4 263.9 3.89 4.21 3.62 YES RR_200 0 0.10000E+01 462722.1 3754847.5 263.7 3.89 4.21 3.62 YES RR_201 0 0.10000E+01 462715.3 3754841.6 263.7 3.89 4.21 3.62 YES RR_202 0 0.10000E+01 462708.5 3754835.7 263.7 3.89 4.21 3.62 YES RR_203 0 0.10000E+01 462701.6 3754829.8 263.7 3.89 4.21 3.62 YES RR_204 0 0.10000E+01 462694.8 3754823.8 263.7 3.89 4.21 3.62 YES RR_205 0 0.10000E+01 462687.9 3754817.9 263.7 3.89 4.21 3.62 YES RR_206 0 0.10000E+01 462681.1 3754812.0 263.7 3.89 4.21 3.62 YES RR_207 0 0.10000E+01 462674.2 3754806.1 263.7 3.89 4.21 3.62 YES RR_208 0 0.10000E+01 462667.4 3754800.2 263.7 3.89 4.21 3.62 YES RR_209 0 0.10000E+01 462660.5 3754794.3 263.7 3.89 4.21 3.62 YES RR_210 0 0.10000E+01 462653.7 3754788.3 263.7 3.89 4.21 3.62 YES RR_211 0 0.10000E+01 462646.9 3754782.4 263.7 3.89 4.21 3.62 YES RR_212 0 0.10000E+01 462640.0 3754776.5 263.6 3.89 4.21 3.62 YES RR_213 0 0.10000E+01 462633.2 3754770.6 263.7 3.89 4.21 3.62 YES RR_214 0 0.10000E+01 462626.3 3754764.7 263.7 3.89 4.21 3.62 YES RR_215 0 0.10000E+01 462619.5 3754758.8 263.7 3.89 4.21 3.62 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 19
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - RR_216 0 0.10000E+01 462612.6 3754752.8 263.7 3.89 4.21 3.62 YES RR_217 0 0.10000E+01 462605.8 3754746.9 263.7 3.89 4.21 3.62 YES RR_218 0 0.10000E+01 462599.0 3754741.0 263.7 3.89 4.21 3.62 YES RR_219 0 0.10000E+01 462592.1 3754735.1 263.7 3.89 4.21 3.62 YES RR_220 0 0.10000E+01 462585.3 3754729.2 263.7 3.89 4.21 3.62 YES RR_221 0 0.10000E+01 462578.4 3754723.2 263.7 3.89 4.21 3.62 YES RR_222 0 0.10000E+01 462571.6 3754717.3 263.7 3.89 4.21 3.62 YES RR_223 0 0.10000E+01 462564.7 3754711.4 263.7 3.89 4.21 3.62 YES RR_224 0 0.10000E+01 462557.9 3754705.5 263.7 3.89 4.21 3.62 YES RR_225 0 0.10000E+01 462551.0 3754699.6 263.7 3.89 4.21 3.62 YES RR_226 0 0.10000E+01 462544.2 3754693.7 263.7 3.89 4.21 3.62 YES RR_227 0 0.10000E+01 462537.3 3754687.8 263.7 3.89 4.21 3.62 YES RR_228 0 0.10000E+01 462530.5 3754681.8 263.7 3.89 4.21 3.62 YES RR_229 0 0.10000E+01 462523.7 3754675.9 263.7 3.89 4.21 3.62 YES RR_230 0 0.10000E+01 462516.8 3754670.0 263.8 3.89 4.21 3.62 YES RR_231 0 0.10000E+01 462510.0 3754664.1 263.7 3.89 4.21 3.62 YES RR_232 0 0.10000E+01 462503.1 3754658.2 263.8 3.89 4.21 3.62 YES RR_233 0 0.10000E+01 462496.3 3754652.2 263.8 3.89 4.21 3.62 YES RR_234 0 0.10000E+01 462489.4 3754646.3 263.8 3.89 4.21 3.62 YES RR_235 0 0.10000E+01 462482.6 3754640.4 263.8 3.89 4.21 3.62 YES RR_236 0 0.10000E+01 462475.7 3754634.5 263.8 3.89 4.21 3.62 YES RR_237 0 0.10000E+01 462468.9 3754628.6 263.8 3.89 4.21 3.62 YES RR_238 0 0.10000E+01 462462.0 3754622.6 263.8 3.89 4.21 3.62 YES RR_239 0 0.10000E+01 462455.2 3754616.7 263.8 3.89 4.21 3.62 YES RR_240 0 0.10000E+01 462448.4 3754610.8 263.8 3.89 4.21 3.62 YES RR_241 0 0.10000E+01 462441.5 3754604.9 263.8 3.89 4.21 3.62 YES RR_242 0 0.10000E+01 462434.7 3754599.0 263.8 3.89 4.21 3.62 YES RR_243 0 0.10000E+01 462427.8 3754593.1 263.7 3.89 4.21 3.62 YES RR_244 0 0.10000E+01 462421.0 3754587.1 263.7 3.89 4.21 3.62 YES RR_245 0 0.10000E+01 462414.1 3754581.2 263.6 3.89 4.21 3.62 YES RR_246 0 0.10000E+01 462407.3 3754575.3 263.6 3.89 4.21 3.62 YES RR_247 0 0.10000E+01 462400.5 3754569.4 263.6 3.89 4.21 3.62 YES RR_248 0 0.10000E+01 462393.6 3754563.5 263.6 3.89 4.21 3.62 YES RR_249 0 0.10000E+01 462386.8 3754557.6 263.5 3.89 4.21 3.62 YES RR_250 0 0.10000E+01 462379.9 3754551.6 263.5 3.89 4.21 3.62 YES RR_251 0 0.10000E+01 462373.1 3754545.7 263.5 3.89 4.21 3.62 YES RR_252 0 0.10000E+01 462366.2 3754539.8 263.4 3.89 4.21 3.62 YES RR_253 0 0.10000E+01 462359.4 3754533.9 263.4 3.89 4.21 3.62 YES RR_254 0 0.10000E+01 462352.5 3754528.0 263.3 3.89 4.21 3.62 YES RR_255 0 0.10000E+01 462345.7 3754522.0 263.3 3.89 4.21 3.62 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 20
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - RR_256 0 0.10000E+01 462338.8 3754516.1 263.2 3.89 4.21 3.62 YES RR_257 0 0.10000E+01 462332.0 3754510.2 263.2 3.89 4.21 3.62 YES RR_258 0 0.10000E+01 462325.2 3754504.3 263.2 3.89 4.21 3.62 YES RR_259 0 0.10000E+01 462318.3 3754498.4 263.1 3.89 4.21 3.62 YES RR_260 0 0.10000E+01 462311.5 3754492.5 263.0 3.89 4.21 3.62 YES RR_261 0 0.10000E+01 462304.6 3754486.5 263.0 3.89 4.21 3.62 YES RR_262 0 0.10000E+01 462297.8 3754480.6 262.9 3.89 4.21 3.62 YES RR_263 0 0.10000E+01 462290.9 3754474.7 262.9 3.89 4.21 3.62 YES RR_264 0 0.10000E+01 462284.1 3754468.8 262.8 3.89 4.21 3.62 YES RR_265 0 0.10000E+01 462277.2 3754462.9 262.7 3.89 4.21 3.62 YES RR_266 0 0.10000E+01 462270.4 3754457.0 262.7 3.89 4.21 3.62 YES RR_267 0 0.10000E+01 462263.6 3754451.0 262.6 3.89 4.21 3.62 YES RR_268 0 0.10000E+01 462256.7 3754445.1 262.6 3.89 4.21 3.62 YES RR_269 0 0.10000E+01 462249.9 3754439.2 262.4 3.89 4.21 3.62 YES RR_270 0 0.10000E+01 462243.0 3754433.3 262.5 3.89 4.21 3.62 YES RR_271 0 0.10000E+01 462236.2 3754427.4 262.3 3.89 4.21 3.62 YES RR_272 0 0.10000E+01 462229.3 3754421.5 262.3 3.89 4.21 3.62 YES RR_273 0 0.10000E+01 462222.5 3754415.5 262.2 3.89 4.21 3.62 YES RR_274 0 0.10000E+01 462215.6 3754409.6 262.1 3.89 4.21 3.62 YES RR_275 0 0.10000E+01 462208.8 3754403.7 262.1 3.89 4.21 3.62 YES RR_276 0 0.10000E+01 462202.0 3754397.8 261.9 3.89 4.21 3.62 YES RR_277 0 0.10000E+01 462195.1 3754391.9 262.0 3.89 4.21 3.62 YES RR_278 0 0.10000E+01 462188.3 3754385.9 261.8 3.89 4.21 3.62 YES RR_279 0 0.10000E+01 462181.4 3754380.0 261.7 3.89 4.21 3.62 YES RR_280 0 0.10000E+01 462174.6 3754374.1 261.6 3.89 4.21 3.62 YES RR_281 0 0.10000E+01 462167.7 3754368.2 261.5 3.89 4.21 3.62 YES RR_282 0 0.10000E+01 462160.9 3754362.3 261.6 3.89 4.21 3.62 YES RR_283 0 0.10000E+01 462154.0 3754356.4 261.4 3.89 4.21 3.62 YES RR_284 0 0.10000E+01 462147.2 3754350.4 261.4 3.89 4.21 3.62 YES RR_285 0 0.10000E+01 462140.4 3754344.5 261.3 3.89 4.21 3.62 YES RR_286 0 0.10000E+01 462133.5 3754338.6 261.5 3.89 4.21 3.62 YES RR_287 0 0.10000E+01 462126.7 3754332.7 261.8 3.89 4.21 3.62 YES RR_288 0 0.10000E+01 462119.8 3754326.8 262.0 3.89 4.21 3.62 YES RR_289 0 0.10000E+01 462113.0 3754320.9 262.0 3.89 4.21 3.62 YES RR_290 0 0.10000E+01 462106.1 3754314.9 261.7 3.89 4.21 3.62 YES RR_291 0 0.10000E+01 462099.3 3754309.0 261.5 3.89 4.21 3.62 YES RR_292 0 0.10000E+01 462092.5 3754303.1 261.4 3.89 4.21 3.62 YES RR_293 0 0.10000E+01 462085.6 3754297.2 261.3 3.89 4.21 3.62 YES RR_294 0 0.10000E+01 462078.8 3754291.3 261.4 3.89 4.21 3.62 YES RR_295 0 0.10000E+01 462071.9 3754285.3 261.3 3.89 4.21 3.62 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 21
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - RR_296 0 0.10000E+01 462065.1 3754279.4 261.4 3.89 4.21 3.62 YES RR_297 0 0.10000E+01 462058.2 3754273.5 261.4 3.89 4.21 3.62 YES RR_298 0 0.10000E+01 462051.4 3754267.6 261.4 3.89 4.21 3.62 YES RR_299 0 0.10000E+01 462044.5 3754261.7 261.4 3.89 4.21 3.62 YES RR_300 0 0.10000E+01 462037.7 3754255.8 261.3 3.89 4.21 3.62 YES RR_301 0 0.10000E+01 462030.8 3754249.8 261.4 3.89 4.21 3.62 YES RR_302 0 0.10000E+01 462024.0 3754243.9 261.2 3.89 4.21 3.62 YES RR_303 0 0.10000E+01 462017.2 3754238.0 261.2 3.89 4.21 3.62 YES RR_304 0 0.10000E+01 462010.3 3754232.1 261.1 3.89 4.21 3.62 YES RR_305 0 0.10000E+01 462003.5 3754226.2 261.1 3.89 4.21 3.62 YES RR_306 0 0.10000E+01 461996.6 3754220.3 261.2 3.89 4.21 3.62 YES RR_307 0 0.10000E+01 461989.8 3754214.3 261.2 3.89 4.21 3.62 YES RR_308 0 0.10000E+01 461982.9 3754208.4 261.2 3.89 4.21 3.62 YES RR_309 0 0.10000E+01 461976.1 3754202.5 261.1 3.89 4.21 3.62 YES RR_310 0 0.10000E+01 461969.2 3754196.6 261.2 3.89 4.21 3.62 YES RR_311 0 0.10000E+01 461962.4 3754190.7 261.2 3.89 4.21 3.62 YES RR_312 0 0.10000E+01 461955.5 3754184.8 261.2 3.89 4.21 3.62 YES RR_313 0 0.10000E+01 461948.7 3754178.8 261.2 3.89 4.21 3.62 YES RR_314 0 0.10000E+01 461941.9 3754172.9 261.1 3.89 4.21 3.62 YES RR_315 0 0.10000E+01 461935.0 3754167.0 261.2 3.89 4.21 3.62 YES RR_316 0 0.10000E+01 461928.2 3754161.1 261.2 3.89 4.21 3.62 YES RR_317 0 0.10000E+01 461921.3 3754155.2 261.2 3.89 4.21 3.62 YES RR_318 0 0.10000E+01 461914.5 3754149.2 261.2 3.89 4.21 3.62 YES RR_319 0 0.10000E+01 461907.6 3754143.3 261.2 3.89 4.21 3.62 YES RR_320 0 0.10000E+01 461900.8 3754137.4 261.3 3.89 4.21 3.62 YES RR_321 0 0.10000E+01 461894.0 3754131.5 261.2 3.89 4.21 3.62 YES RR_322 0 0.10000E+01 461887.1 3754125.6 261.3 3.89 4.21 3.62 YES RR_323 0 0.10000E+01 461880.3 3754119.7 261.3 3.89 4.21 3.62 YES RR_324 0 0.10000E+01 461873.4 3754113.7 261.3 3.89 4.21 3.62 YES RR_325 0 0.10000E+01 461866.6 3754107.8 261.3 3.89 4.21 3.62 YES RR_326 0 0.10000E+01 461859.7 3754101.9 261.4 3.89 4.21 3.62 YES RR_327 0 0.10000E+01 461852.9 3754096.0 261.5 3.89 4.21 3.62 YES RR_328 0 0.10000E+01 461846.0 3754090.1 261.4 3.89 4.21 3.62 YES RR_329 0 0.10000E+01 461839.2 3754084.1 261.5 3.89 4.21 3.62 YES RR_330 0 0.10000E+01 461832.3 3754078.2 261.4 3.89 4.21 3.62 YES RR_331 0 0.10000E+01 461825.5 3754072.3 261.4 3.89 4.21 3.62 YES RR_332 0 0.10000E+01 461818.7 3754066.4 261.5 3.89 4.21 3.62 YES RR_333 0 0.10000E+01 461811.8 3754060.5 261.4 3.89 4.21 3.62 YES RR_334 0 0.10000E+01 461805.0 3754054.6 261.5 3.89 4.21 3.62 YES RR_335 0 0.10000E+01 461798.1 3754048.6 261.5 3.89 4.21 3.62 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 22
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - RR_336 0 0.10000E+01 461791.3 3754042.7 261.5 3.89 4.21 3.62 YES RR_337 0 0.10000E+01 461784.4 3754036.8 261.4 3.89 4.21 3.62 YES RR_338 0 0.10000E+01 461777.6 3754030.9 261.4 3.89 4.21 3.62 YES RR_339 0 0.10000E+01 461770.8 3754025.0 261.4 3.89 4.21 3.62 YES RR_340 0 0.10000E+01 461763.9 3754019.1 261.4 3.89 4.21 3.62 YES RR_341 0 0.10000E+01 461757.1 3754013.1 261.5 3.89 4.21 3.62 YES RR_342 0 0.10000E+01 461750.2 3754007.2 261.5 3.89 4.21 3.62 YES RR_343 0 0.10000E+01 461743.4 3754001.3 261.5 3.89 4.21 3.62 YES RR_344 0 0.10000E+01 461736.5 3753995.4 261.5 3.89 4.21 3.62 YES RR_345 0 0.10000E+01 461729.7 3753989.5 261.5 3.89 4.21 3.62 YES RR_346 0 0.10000E+01 461722.8 3753983.5 261.5 3.89 4.21 3.62 YES RR_347 0 0.10000E+01 461716.0 3753977.6 261.6 3.89 4.21 3.62 YES RR_348 0 0.10000E+01 461709.1 3753971.7 261.6 3.89 4.21 3.62 YES RR_349 0 0.10000E+01 461702.3 3753965.8 261.6 3.89 4.21 3.62 YES RR_350 0 0.10000E+01 461695.5 3753959.9 261.7 3.89 4.21 3.62 YES RR_351 0 0.10000E+01 461688.6 3753954.0 261.7 3.89 4.21 3.62 YES RR_352 0 0.10000E+01 461681.8 3753948.0 261.8 3.89 4.21 3.62 YES RR_353 0 0.10000E+01 461674.9 3753942.1 261.8 3.89 4.21 3.62 YES RR_354 0 0.10000E+01 461668.1 3753936.2 261.8 3.89 4.21 3.62 YES RR_355 0 0.10000E+01 461661.2 3753930.3 261.8 3.89 4.21 3.62 YES RR_356 0 0.10000E+01 461654.4 3753924.4 261.8 3.89 4.21 3.62 YES RR_357 0 0.10000E+01 461647.5 3753918.5 261.8 3.89 4.21 3.62 YES RR_358 0 0.10000E+01 461640.7 3753912.5 261.7 3.89 4.21 3.62 YES RR_359 0 0.10000E+01 461633.9 3753906.6 261.7 3.89 4.21 3.62 YES RR_360 0 0.10000E+01 461627.0 3753900.7 261.7 3.89 4.21 3.62 YES RR_361 0 0.10000E+01 461620.2 3753894.8 261.7 3.89 4.21 3.62 YES RR_362 0 0.10000E+01 461613.3 3753888.9 261.7 3.89 4.21 3.62 YES RR_363 0 0.10000E+01 461606.5 3753883.0 261.7 3.89 4.21 3.62 YES RR_364 0 0.10000E+01 461599.6 3753877.0 261.7 3.89 4.21 3.62 YES RR_365 0 0.10000E+01 461592.8 3753871.1 261.7 3.89 4.21 3.62 YES RR_366 0 0.10000E+01 461586.0 3753865.2 261.7 3.89 4.21 3.62 YES RR_367 0 0.10000E+01 461579.1 3753859.3 261.6 3.89 4.21 3.62 YES RR_368 0 0.10000E+01 461572.3 3753853.4 261.6 3.89 4.21 3.62 YES RR_369 0 0.10000E+01 461565.4 3753847.4 261.6 3.89 4.21 3.62 YES RR_370 0 0.10000E+01 461558.6 3753841.5 261.5 3.89 4.21 3.62 YES RR_371 0 0.10000E+01 461551.7 3753835.6 261.5 3.89 4.21 3.62 YES RR_372 0 0.10000E+01 461544.9 3753829.7 261.5 3.89 4.21 3.62 YES RR_373 0 0.10000E+01 461538.0 3753823.8 261.6 3.89 4.21 3.62 YES RR_374 0 0.10000E+01 461531.2 3753817.9 261.6 3.89 4.21 3.62 YES RR_375 0 0.10000E+01 461524.3 3753811.9 261.5 3.89 4.21 3.62 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 23
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** VOLUME SOURCE DATA ***
NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - RR_376 0 0.10000E+01 461517.5 3753806.0 261.5 3.89 4.21 3.62 YES RR_377 0 0.10000E+01 461510.6 3753800.1 261.5 3.89 4.21 3.62 YES RR_378 0 0.10000E+01 461503.8 3753794.2 261.6 3.89 4.21 3.62 YES RR_379 0 0.10000E+01 461497.0 3753788.3 261.6 3.89 4.21 3.62 YES RR_380 0 0.10000E+01 461490.1 3753782.4 261.7 3.89 4.21 3.62 YES RR_381 0 0.10000E+01 461483.3 3753776.4 261.7 3.89 4.21 3.62 YES RR_382 0 0.10000E+01 461476.4 3753770.5 261.6 3.89 4.21 3.62 YES RR_383 0 0.10000E+01 461469.6 3753764.6 261.4 3.89 4.21 3.62 YES RR_384 0 0.10000E+01 461462.7 3753758.7 261.2 3.89 4.21 3.62 YES RR_385 0 0.10000E+01 461455.9 3753752.8 261.0 3.89 4.21 3.62 YES RR_386 0 0.10000E+01 461449.0 3753746.8 260.9 3.89 4.21 3.62 YES RR_387 0 0.10000E+01 461442.2 3753740.9 260.9 3.89 4.21 3.62 YES RR_388 0 0.10000E+01 461435.4 3753735.0 260.8 3.89 4.21 3.62 YES RR_389 0 0.10000E+01 461428.5 3753729.1 260.7 3.89 4.21 3.62 YES RR_390 0 0.10000E+01 461421.7 3753723.2 260.7 3.89 4.21 3.62 YES RR_391 0 0.10000E+01 461414.8 3753717.3 260.7 3.89 4.21 3.62 YES RR_392 0 0.10000E+01 461408.0 3753711.3 260.6 3.89 4.21 3.62 YES RR_393 0 0.10000E+01 461401.1 3753705.4 260.6 3.89 4.21 3.62 YES RR_394 0 0.10000E+01 461394.3 3753699.5 260.4 3.89 4.21 3.62 YES RR_395 0 0.10000E+01 461387.5 3753693.6 260.4 3.89 4.21 3.62 YES PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 73
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** DISCRETE CARTESIAN RECEPTORS ***
(X-COORD, Y-COORD, ZELEV, ZHILL, ZFLAG)
(METERS)
( 462332.1, 3754552.9, 262.3, 262.3, 0.0); ( 462342.1, 3754552.9, 262.4, 262.4, 0.0); ( 462332.1, 3754562.9, 262.3, 262.3, 0.0); ( 462342.1, 3754562.9, 262.3, 262.3, 0.0); ( 462352.7, 3754560.2, 262.5, 262.5, 0.0); ( 462342.1, 3754572.9, 262.4, 262.4, 0.0); ( 462352.7, 3754570.2, 262.4, 262.4, 0.0); ( 462362.7, 3754570.2, 262.6, 262.6, 0.0); ( 462372.1, 3754572.9, 262.8, 262.8, 0.0); ( 462352.7, 3754580.2, 262.5, 262.5, 0.0); ( 462362.7, 3754580.2, 262.5, 262.5, 0.0); ( 462372.1, 3754582.9, 262.7, 262.7, 0.0); ( 462382.1, 3754582.9, 262.8, 262.8, 0.0); ( 462362.7, 3754590.2, 262.6, 262.6, 0.0); ( 462372.1, 3754592.9, 262.6, 262.6, 0.0); ( 462382.1, 3754592.9, 262.8, 262.8, 0.0); ( 462392.1, 3754592.9, 262.9, 262.9, 0.0); ( 462382.1, 3754602.9, 262.7, 262.7, 0.0); ( 462392.1, 3754602.9, 262.9, 262.9, 0.0); ( 462402.1, 3754602.9, 263.0, 263.0, 0.0); ( 462392.1, 3754612.9, 262.8, 262.8, 0.0); ( 462402.1, 3754612.9, 262.9, 262.9, 0.0); ( 462412.1, 3754612.9, 263.0, 263.0, 0.0); ( 462402.1, 3754622.9, 262.9, 262.9, 0.0); ( 462412.1, 3754622.9, 262.9, 262.9, 0.0); ( 462422.1, 3754622.9, 263.1, 263.1, 0.0); ( 462432.1, 3754625.1, 263.3, 263.3, 0.0); ( 462412.1, 3754632.9, 262.9, 262.9, 0.0); ( 462422.1, 3754632.9, 263.0, 263.0, 0.0); ( 462432.1, 3754635.1, 263.1, 263.1, 0.0); ( 462442.1, 3754632.9, 263.4, 263.4, 0.0); ( 462422.1, 3754642.9, 262.9, 262.9, 0.0); ( 462432.1, 3754645.1, 263.0, 263.0, 0.0); ( 462442.1, 3754642.9, 263.2, 263.2, 0.0); ( 462452.1, 3754642.9, 263.4, 263.4, 0.0); ( 462442.1, 3754652.9, 263.0, 263.0, 0.0); ( 462452.1, 3754652.9, 263.3, 263.3, 0.0); ( 462462.1, 3754652.9, 263.4, 263.4, 0.0); ( 462452.1, 3754662.9, 263.1, 263.1, 0.0); ( 462462.1, 3754662.9, 263.3, 263.3, 0.0); ( 462472.1, 3754662.9, 263.4, 263.4, 0.0); ( 462462.1, 3754672.9, 263.0, 263.0, 0.0); ( 462472.1, 3754672.9, 263.2, 263.2, 0.0); ( 462482.1, 3754672.9, 263.3, 263.3, 0.0); ( 462492.1, 3754675.1, 263.4, 263.4, 0.0); ( 462472.1, 3754682.9, 262.9, 262.9, 0.0); ( 462482.1, 3754682.9, 263.1, 263.1, 0.0); ( 462492.1, 3754685.1, 263.1, 263.1, 0.0); ( 462502.1, 3754682.9, 263.2, 263.2, 0.0); ( 462482.1, 3754692.9, 262.8, 262.8, 0.0); ( 462492.1, 3754695.1, 262.8, 262.8, 0.0); ( 462502.1, 3754692.9, 262.9, 262.9, 0.0); ( 462512.1, 3754692.9, 262.9, 262.9, 0.0); ( 462502.1, 3754702.9, 262.6, 262.6, 0.0); ( 462512.1, 3754702.9, 262.5, 262.5, 0.0); ( 462522.1, 3754702.9, 262.7, 262.7, 0.0); ( 462512.1, 3754712.9, 262.4, 262.4, 0.0); ( 462522.1, 3754712.9, 262.4, 262.4, 0.0); ( 462532.1, 3754712.9, 262.6, 262.6, 0.0); ( 462522.1, 3754722.9, 262.3, 262.3, 0.0); ( 462532.1, 3754722.9, 262.2, 262.2, 0.0); ( 462542.1, 3754722.9, 262.4, 262.4, 0.0); ( 462532.1, 3754732.9, 262.1, 262.1, 0.0); ( 462542.1, 3754732.9, 262.1, 262.1, 0.0); ( 462552.1, 3754732.9, 262.3, 262.3, 0.0); ( 462542.1, 3754742.9, 262.1, 262.1, 0.0); ( 462552.1, 3754742.9, 262.0, 262.0, 0.0); ( 462562.1, 3754742.9, 262.1, 262.1, 0.0); ( 462572.1, 3754742.9, 262.5, 262.5, 0.0); ( 462562.1, 3754752.9, 261.9, 261.9, 0.0); ( 462572.1, 3754752.9, 262.0, 262.0, 0.0); ( 462582.1, 3754752.9, 262.3, 262.3, 0.0); ( 462572.1, 3754762.9, 261.9, 261.9, 0.0); ( 462582.1, 3754762.9, 261.9, 261.9, 0.0); ( 462592.1, 3754762.9, 262.2, 262.2, 0.0); ( 462582.1, 3754772.9, 261.8, 261.8, 0.0); ( 462592.1, 3754772.9, 261.9, 261.9, 0.0); ( 462602.1, 3754772.9, 262.1, 262.1, 0.0); ( 462592.1, 3754782.9, 261.9, 261.9, 0.0); ( 462602.1, 3754782.9, 261.9, 261.9, 0.0); ( 462612.1, 3754782.9, 262.0, 262.0, 0.0); ( 462602.1, 3754792.9, 261.8, 261.8, 0.0); ( 462612.1, 3754792.9, 261.8, 261.8, 0.0); ( 462622.1, 3754792.9, 262.0, 262.0, 0.0); ( 462612.1, 3754802.9, 261.8, 261.8, 0.0); ( 462622.1, 3754802.9, 261.8, 261.8, 0.0); ( 462632.1, 3754802.9, 262.0, 262.0, 0.0); ( 462642.1, 3754804.5, 262.3, 262.3, 0.0); ( 462632.1, 3754812.9, 261.8, 261.8, 0.0); ( 462642.1, 3754814.5, 261.9, 261.9, 0.0); PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36 PAGE 74
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** DISCRETE CARTESIAN RECEPTORS ***
(X-COORD, Y-COORD, ZELEV, ZHILL, ZFLAG)
(METERS)
( 462652.1, 3754812.9, 262.2, 262.2, 0.0); ( 462642.1, 3754824.5, 261.7, 261.7, 0.0); ( 462652.1, 3754822.9, 261.8, 261.8, 0.0); ( 462662.1, 3754822.9, 262.2, 262.2, 0.0); ( 462652.1, 3754832.9, 261.7, 261.7, 0.0); ( 462662.1, 3754832.9, 261.8, 261.8, 0.0); ( 462672.1, 3754832.9, 262.2, 262.2, 0.0); ( 462682.1, 3754862.6, 261.7, 261.7, 0.0); ( 462662.1, 3754842.9, 261.7, 261.7, 0.0); ( 462672.1, 3754842.9, 261.8, 261.8, 0.0); ( 462682.1, 3754842.9, 262.1, 262.1, 0.0); ( 462691.1, 3754845.8, 262.5, 262.5, 0.0); ( 462672.1, 3754852.9, 261.7, 261.7, 0.0); ( 462682.1, 3754852.9, 261.8, 261.8, 0.0); ( 462692.1, 3754852.9, 262.1, 262.1, 0.0); ( 462701.1, 3754854.2, 262.6, 262.6, 0.0); ( 462692.1, 3754862.9, 261.9, 261.9, 0.0); ( 462702.1, 3754862.9, 262.1, 262.1, 0.0); ( 462712.1, 3754862.9, 262.4, 262.4, 0.0); ( 462702.1, 3754872.9, 261.8, 261.8, 0.0); ( 462712.1, 3754872.9, 262.0, 262.0, 0.0); ( 462722.1, 3754872.9, 262.8, 263.5, 0.0); ( 462712.1, 3754882.9, 262.0, 262.0, 0.0); PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36
PAGE 76
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** UP TO THE FIRST 24 HOURS OF METEOROLOGICAL DATA *** Surface file: KRAL_v9.SFC Met Version: 16216
Profile file: KRAL_v9.PFL
Surface format: FREE
Profile format: FREE
Surface station no.: 3171 Upper air station no.: 3190 Name: RIVERSIDE_AIRPORT Name: UNKNOWN
Year: 2012 Year: 2012
First 24 hours of scalar data
YR MO DY JDY HR H0 U* W* DT/DZ ZICNV ZIMCH M-O LEN Z0 BOWEN ALBEDO REF WS WD HT REF TA HT - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 12 01 01 1 01 -25.6 0.266 -9.000 -9.000 -999. 330. 77.9 0.15 2.40 1.00 2.93 55. 10.1 288.1 2.0 12 01 01 1 02 -26.8 0.277 -9.000 -9.000 -999. 351. 84.7 0.15 2.40 1.00 3.05 55. 10.1 287.0 2.0 12 01 01 1 03 -21.5 0.221 -9.000 -9.000 -999. 250. 53.5 0.15 2.40 1.00 2.45 74. 10.1 284.2 2.0 12 01 01 1 04 -22.0 0.227 -9.000 -9.000 -999. 260. 56.8 0.15 2.40 1.00 2.52 77. 10.1 285.9 2.0 12 01 01 1 05 -20.0 0.206 -9.000 -9.000 -999. 225. 46.8 0.15 2.40 1.00 2.30 80. 10.1 285.4 2.0 12 01 01 1 06 -14.4 0.171 -9.000 -9.000 -999. 170. 32.1 0.15 2.40 1.00 1.93 79. 10.1 287.0 2.0 12 01 01 1 07 -14.9 0.174 -9.000 -9.000 -999. 174. 33.2 0.15 2.40 1.00 1.96 77. 10.1 284.2 2.0 12 01 01 1 08 -11.9 0.169 -9.000 -9.000 -999. 167. 36.1 0.15 2.40 0.53 1.89 77. 10.1 288.1 2.0 12 01 01 1 09 40.4 0.234 0.359 0.006 40. 272. -28.1 0.15 2.40 0.31 2.10 81. 10.1 289.2 2.0 12 01 01 1 10 112.6 0.246 0.742 0.005 129. 293. -11.8 0.15 2.40 0.24 1.99 101. 10.1 296.4 2.0 12 01 01 1 11 161.0 0.402 1.188 0.005 369. 611. -35.6 0.15 2.40 0.21 3.68 78. 10.1 298.8 2.0 12 01 01 1 12 184.7 0.337 1.516 0.005 668. 473. -18.4 0.15 2.40 0.20 2.89 68. 10.1 300.4 2.0 12 01 01 1 13 183.9 0.310 1.809 0.005 1139. 414. -14.2 0.15 2.40 0.20 2.57 64. 10.1 302.5 2.0 12 01 01 1 14 156.6 0.374 1.852 0.005 1434. 549. -29.5 0.15 2.40 0.22 3.37 63. 10.1 303.1 2.0 12 01 01 1 15 104.3 0.382 1.658 0.005 1546. 567. -47.2 0.15 2.40 0.25 3.59 62. 10.1 302.5 2.0 12 01 01 1 16 31.8 0.374 1.123 0.005 1573. 550. -145.8 0.15 2.40 0.34 3.76 69. 10.1 300.9 2.0 12 01 01 1 17 -23.3 0.276 -9.000 -9.000 -999. 354. 84.0 0.15 2.40 0.62 3.03 59. 10.1 297.5 2.0 12 01 01 1 18 -21.5 0.229 -9.000 -9.000 -999. 264. 57.8 0.15 2.40 1.00 2.54 54. 10.1 295.4 2.0 12 01 01 1 19 -19.3 0.204 -9.000 -9.000 -999. 221. 45.6 0.15 2.40 1.00 2.27 79. 10.1 292.0 2.0 12 01 01 1 20 -20.7 0.218 -9.000 -9.000 -999. 244. 52.2 0.15 2.40 1.00 2.42 79. 10.1 292.5 2.0 12 01 01 1 21 -19.7 0.206 -9.000 -9.000 -999. 225. 46.9 0.15 2.40 1.00 2.30 95. 10.1 290.9 2.0 12 01 01 1 22 -17.6 0.190 -9.000 -9.000 -999. 199. 39.8 0.15 2.40 1.00 2.13 78. 10.1 290.4 2.0 12 01 01 1 23 -20.3 0.211 -9.000 -9.000 -999. 233. 49.0 0.15 2.40 1.00 2.35 52. 10.1 289.2 2.0 12 01 01 1 24 -16.4 0.183 -9.000 -9.000 -999. 189. 37.0 0.15 2.40 1.00 2.06 75. 10.1 288.8 2.0 First hour of profile data
YR MO DY HR HEIGHT F WDIR WSPD AMB_TMP sigmaA sigmaW sigmaV 12 01 01 01 10.1 1 55. 2.93 288.2 99.0 -99.00 -99.00 F indicates top of profile (=1) or below (=0)
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices *** AERMOD - VERSION 22112 *** *** Madison Flats Residential HRA *** 01/30/23 *** AERMET - VERSION 16216 *** *** *** 19:07:36
PAGE 3767
*** MODELOPTs: RegDFAULT CONC ELEV URBAN ADJ_U*
*** Message Summary : AERMOD Model Execution ***
--------- Summary of Total Messages --------
A Total of 0 Fatal Error Message(s)
A Total of 1652 Warning Message(s)
A Total of 1638 Informational Message(s)
A Total of 43848 Hours Were Processed
A Total of 1039 Calm Hours Identified
A Total of 599 Missing Hours Identified ( 1.37 Percent) ******** FATAL ERROR MESSAGES ********
*** NONE ***
******** WARNING MESSAGES ********
ME W186 2752 MEOPEN: THRESH_1MIN 1-min ASOS wind speed threshold used 0.50 ME W187 2752 MEOPEN: ADJ_U* Option for Stable Low Winds used in AERMET OU W565 2833 OUPLOT: Possible Conflict With Dynamically Allocated FUNIT PLOTFILE OU W565 2834 OUPLOT: Possible Conflict With Dynamically Allocated FUNIT PLOTFILE OU W565 2835 OUPLOT: Possible Conflict With Dynamically Allocated FUNIT PLOTFILE OU W565 2836 OUPLOT: Possible Conflict With Dynamically Allocated FUNIT PLOTFILE OU W565 2837 OUPLOT: Possible Conflict With Dynamically Allocated FUNIT PLOTFILE OU W565 2838 OUPLOT: Possible Conflict With Dynamically Allocated FUNIT PLOTFILE 5 3820 PERPLT: Possible Conflict With Dynamically OU W565 3 OU W565 OU W565 OU W565 OU W565 5 3821 PERPLT: Possible Conflict With Dynamically OU W565 3 OU W565 OU W565 5 3822 PERPLT: Possible Conflict With Dynamically OU W565 3 5 3823 PERPLT: Possible Conflict With Dynamically OU W565 3 OU W565 OU W565 W565 5 3824 PERPLT: Possible Conflict With Dynamically OU W565 3 OU W565 OU OU W565 OU W565 5 3825 PERPLT: Possible Conflict With Dynamically OU W565 3 W565 5 3826 PERPLT: Possible Conflict With Dynamically OU W565 3 OU W565 OU OU W565 OU W565 5 3827 PERPLT: Possible Conflict With Dynamically OU W565 3 OU W565 OU W565 5 3828 PERPLT: Possible Conflict With Dynamically OU W565 3 OU W565 OU W565 5 3829 PERPLT: Possible Conflict With Dynamically OU W565 3 More Than 999 Warning Messages Found. See ERRORFIL Output for the Remainder. ************************************
*** AERMOD Finishes Successfully ***
************************************
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices HARP Project Summary Report 1/30/2023 12:03:41 PM

***PROJECT INFORMATION***
HARP Version: 22118
Project Name: GBC2201-HARP
Project Output Directory: C:\Users\RonaldB\Local AERMOD\GBC2201-HARP HARP Database: NA

***POLLUTANT HEALTH INFORMATION***
Health Database: C:\HARP2\Tables\HEALTH17320.mdb
Health Table Version: HEALTH22013
Official: True

PolID PolAbbrev InhCancer OralCancer AcuteREL InhChronicREL OralChronicREL InhChronic8HRREL __________________________________________________________________________________________________________________ 9901 DieselExhPM 1.1 5 88101 PM25
106990 1,3-Butadiene 0.6 660 2 9 71432 Benzene 0.1 27 3 3 100414 Ethyl Benzene 0.0087 2000 78933 MEK 13000 91203 Naphthalene 0.12 9 115071 Propylene 3000 100425 Styrene 21000 900 108883 Toluene 5000 420 830 1330207 Xylenes 22000 700

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices HARP2 - HRACalc (dated 22118) 1/31/2023 10:46:35 AM - Output Log

GLCs loaded successfully
Pollutants loaded successfully
Pathway receptors loaded successfully
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RISK SCENARIO SETTINGS

Receptor Type: Resident
Scenario: All
Calculation Method: Derived

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EXPOSURE DURATION PARAMETERS FOR CANCER

Start Age: -0.25
Total Exposure Duration: 30

Exposure Duration Bin Distribution
3rd Trimester Bin: 0.25
0<2 Years Bin: 2
2<9 Years Bin: 0
2<16 Years Bin: 14
16<30 Years Bin: 14
16 to 70 Years Bin: 0

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PATHWAYS ENABLED

NOTE: Inhalation is always enabled and used for all assessments. The remaining pathways are only used for cancer and noncancer chronic assessments.

Inhalation: True
Soil: True
Dermal: True
Mother's milk: True
Water: False
Fish: False
Homegrown crops: True
Beef: False
Dairy: False
Pig: False
Chicken: False
Egg: False

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INHALATION

Daily breathing rate: RMP

**Worker Adjustment Factors**
Worker adjustment factors enabled: NO

**Fraction at time at home**
3rd Trimester to 16 years: OFF
16 years to 70 years: OFF

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SOIL & DERMAL PATHWAY SETTINGS

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Deposition rate (m/s): 0.02
Soil mixing depth (m): 0.01
Dermal climate: Warm

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HOMEGROWN CROP PATHWAY SETTINGS

Household type: HouseholdsthatGarden
Fraction leafy: 0.137
Fraction exposed: 0.137
Fraction protected: 0.137
Fraction root: 0.137

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TIER 2 SETTINGS
Tier2 not used.

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Calculating cancer risk
Cancer risk breakdown by pollutant and receptor saved to: C:\Users\RonaldB\Local AERMOD\GBC2201-HARP\hra\30-Yr CancerRisk.csv
Cancer risk total by receptor saved to: C:\Users\RonaldB\Local AERMOD\GBC2201- HARP\hra\30-Yr CancerRiskSumByRec.csv
Calculating chronic risk
Chronic risk breakdown by pollutant and receptor saved to: C:\Users\RonaldB\Local AERMOD\GBC2201-HARP\hra\30-Yr NCChronicRisk.csv
Chronic risk total by receptor saved to: C:\Users\RonaldB\Local AERMOD\GBC2201- HARP\hra\30-Yr NCChronicRiskSumByRec.csv
Calculating acute risk
Acute risk breakdown by pollutant and receptor saved to: C:\Users\RonaldB\Local AERMOD\GBC2201-HARP\hra\30-Yr NCAcuteRisk.csv
Acute risk total by receptor saved to: C:\Users\RonaldB\Local AERMOD\GBC2201- HARP\hra\30-Yr NCAcuteRiskSumByRec.csv
HRA ran successfully
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices HARP2 - HRACalc (dated 22118) 1/31/2023 10:54:41 AM - Output Log

GLCs loaded successfully
Pollutants loaded successfully
Pathway receptors loaded successfully
**********************************

RISK SCENARIO SETTINGS

Receptor Type: Resident
Scenario: NCChronic8HR
Calculation Method: Derived

**********************************

EXPOSURE DURATION PARAMETERS FOR CANCER
**Exposure duration are only adjusted for cancer assessments**

**********************************

PATHWAYS ENABLED

NOTE: Inhalation is always enabled and used for all assessments. The remaining pathways are only used for cancer and noncancer chronic assessments.

Inhalation: True
Soil: False
Dermal: False
Mother's milk: False
Water: False
Fish: False
Homegrown crops: False
Beef: False
Dairy: False
Pig: False
Chicken: False
Egg: False

**********************************

INHALATION

Daily breathing rate: RMP

**Worker Adjustment Factors**
Worker adjustment factors enabled: NO

**Fraction at time at home**
NOTE: Exposure duration (i.e., start age, end age, ED, & FAH) are only adjusted for cancer assessments.

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TIER 2 SETTINGS
Tier2 not used.

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Calculating chronic 8hr risk
Chronic 8-hr risk breakdown by pollutant and receptor saved to:

C:\Users\RonaldB\Local AERMOD\GBC2201-HARP\hra\8-Hr NCChronic8HrRisk.csv Chronic 8-hr risk total by receptor saved to: C:\Users\RonaldB\Local AERMOD\GBC2201- HARP\hra\8-Hr NCChronic8HrRiskSumByRec.csv
HRA ran successfully
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

Environmental Initial Study/Mitigated Negative Declaration # PR-2021-001197

APPENDIX C

Western Riverside County Multiple Species Habitat Conservation Plan Consistency Analysis and Biology Report
(MSHCP Consistency Analysis and Biology Report)
(LSA, November 2022)

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices November 2022

WESTERN RIVERSIDE COUNTY MULTIPLE SPECIES

HABITAT CONSERVATION PLAN CONSISTENCY

ANALYSIS AND BIOLOGY REPORT

MADISON FLATS PROJECT
MSHCP PERMITTEE:

CITY OF RIVERSIDE

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices November 2022

WESTERN RIVERSIDE COUNTY MULTIPLE SPECIES

HABITAT CONSERVATION PLAN CONSISTENCY

ANALYSIS AND BIOLOGY REPORT

MADISON FLATS PROJECT
MSHCP PERMITTEE:

CITY OF RIVERSIDE

Prepared for:

Blaise Rastello
Gilbane Development Company
1100 North Blebe Road, Suite 1000
Arlington, Virginia 22201

Prepared by:

Carla Cervantes
LSA Associates, Inc.
1500 Iowa Avenue, Suite 200
Riverside, California 92507
(951) 781-9310
LSA Project No. GBC2201
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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EXECUTIVE SUMMARY
LSA Associates, Inc. (LSA) was retained by Gilbane Development Company to conduct a Western Riverside County Multiple Species Habitat Conservation Plan (MSHCP) consistency analysis and general biological study of the approximately 4.15-acre Madison Flats Project (project) site located at the southwest corner of Madison Street and Railroad Avenue in Riverside, Riverside County, California. The study was conducted for the identification of potential jurisdictional waters and to address compliance with the MSHCP and the California Environmental Quality Act (CEQA). Results of the MSHCP consistency analysis and general biological study are summarized below.

The site is heavily disturbed and devoid of vegetation, with the exception of four palm trees located on site. Given this, it offers low biological functions and values. It is surrounded by commercial, residential, and industrial developments.

No drainage features, ponded areas, or riparian habitat potentially subject to jurisdiction by the California Department of Fish and Wildlife (CDFW) or United States Army Corps of Engineers (USACE) were found within the project site.

The project site is not within the MSHCP Criteria Area.

The site does not contain riverine/riparian areas or vernal pools as defined in the MSHCP and does not contain any fairy shrimp habitat. Therefore, focused surveys will not be required for sensitive riparian bird species or fairy shrimp species associated with vernal pools.

The project site is not within the MSHCP survey area for burrowing owl (Athene cunicularia hypugaea), and no suitable habitat for this species is present on site.

The project site is not located within an MSHCP Narrow Endemic Plant Species Survey Area (NEPSSA).

The project site is not located within an MSHCP designated survey area for any other species and does not contain Delhi series soils. Therefore, no surveys for other species will be required.

The project will not be subject to MSHCP Urban/Wildlands interface requirements because the site is not within or adjacent to an identified Conservation Area.

The project site is not within the Stephens’ Kangaroo Rat Habitat Conservation Plan area, and payment of a fee is not required.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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TABLE OF CONTENTS
EXECUTIVE SUMMARY ............................................................................................................................. i TABLE OF CONTENTS .............................................................................................................................. ii LIST OF ABBREVIATIONS AND ACRONYMS ............................................................................................ iv

1.0 INTRODUCTION ................................................................................................... 1

1.1 Project Area .......................................................................................................................... 1

1.2 Project Description ............................................................................................................... 1

1.3 General Setting ..................................................................................................................... 1

2.0 RESERVE ASSEMBLY ANALYSIS ............................................................................. 2

2.1 Cell and Criteria Analysis ...................................................................................................... 2

2.2 Public Quasi-Public Lands Analysis ....................................................................................... 2

3.0 VEGETATION ....................................................................................................... 3

4.0 PROTECTION OF SPECIES ASSOCIATED WITH RIPARIAN/RIVERINE AREAS AND VERNAL POOLS (MSHCP SECTION 6.1.2) ....................................................... 4

4.1 Riparian/Riverine ................................................................................................................. 4

4.1.1 Methods ................................................................................................................................ 4

4.1.2 Existing Conditions and Results ............................................................................................. 5

4.2 Vernal Pools ......................................................................................................................... 5

4.2.1 Methods ................................................................................................................................ 5

4.2.2 Existing Conditions and Results ............................................................................................. 5

4.3 Fairy Shrimp ......................................................................................................................... 5

4.3.1 Methods ................................................................................................................................ 5

4.3.2 Existing Conditions and Results ............................................................................................. 6

4.4 Riparian Birds ....................................................................................................................... 6

4.4.1 Methods ................................................................................................................................ 6

4.4.2 Existing Conditions and Results ............................................................................................. 6

5.0 PROTECTION OF NARROW ENDEMIC PLANT SPECIES (MSHCP SECTION

6.1.3) .................................................................................................................. 7

6.0 ADDITIONAL SURVEY NEEDS AND PROCEDURES (MSHCP SECTION 6.3.2) ............. 8

6.1 Criteria Area Plant Species ................................................................................................... 8

6.2 Amphibians .......................................................................................................................... 8

6.3 Bu
rrowing Owl ..................................................................................................................... 8

6.4 Mammals .............................................................................................................................. 8

7.0 INFORMATION ON OTHER SPECIES ...................................................................... 9

7.1 Delhi Sands Flower-Loving Fly .............................................................................................. 9

7.2 Species Not Adequately Conserved ..................................................................................... 9

7.2.1 Methods ................................................................................................................................ 9

7.2.2 Existing Results ...................................................................................................................... 9

8.0 GUIDELINES PERTAINING TO THE URBAN/WILDLANDS INTERFACE (MSHCP SECTION 6.1.4) .................................................................................................. 10 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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9.0 POTENTIAL JURISDICTIONAL WATERS AND STREAMBEDS .................................. 11

10.0 NESTING BIRDS ................................................................................................. 12

11.0 CEQA COMPLIANCE ........................................................................................... 13

11.1 Adopted Habitat Conservation Plans ................................................................................. 13

11.2 Threatened and Endangered Species ................................................................................. 13

11.3 Other Special-Status Species .............................................................................................. 14

11.4 Wildlife Movement, Corridors and Nursery Sites .............................................................. 16

11.5 Natural Communities of Interest ....................................................................................... 16

11.6 Wetlands ............................................................................................................................ 16

11.7 Local Policies and Ordinances Protecting Biological Resources ......................................... 16

11.8 Indirect Effects ................................................................................................................... 16

11.9 Cumulative Effects ............................................................................................................. 17

12.0 REFERENCES ...................................................................................................... 18

13.0 CERTIFICATION STATEMENT .............................................................................. 19

TABLES
Table A: Threatened and Endangered Species ..................................................................................... 14 Table B: Special-Status Species Potentially Occurring in the Project Vicinity that are not Adequately Covered by the MSHCP ............................................................................................ 15

APPENDICES
A: FIGURES
B: PLANT AND ANIMAL SPECIES OBSERVED

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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LIST OF ABBREVIATIONS AND ACRONYMS
APN Assessor’s Parcel Number
ARL additional reserve lands
BIOS Biogeographic Information and Observation System
BNSF Burlington Northern Santa Fe railway
BUOW burrowing owl
CASSA Criteria Area Species Survey Area
CDFW California Department of Fish and Wildlife
CEQA California Environmental Quality Act
cm centimeter(s)
CNPS California Native Plant Society
CWA federal Clean Water Act
DBESP Determination of Biologically Equivalent or Superior Preservation ft foot/feet
HCP Habitat Conservation Plan
MSHCP Western Riverside County Multiple Species Habitat Conservation Plan NEPSSA Narrow Endemic Plant Species Survey Area
NRCS Natural Resources Conservation Service
project Madison Flats Project
ROW right-of-way
RWQCB Regional Water Quality Control Board
SKR Stephens’ kangaroo rat
SKR HCP Stephens’ Kangaroo Rat Habitat Conservation Plan USACE United States Army Corps of Engineers
USFWS United States Fish and Wildlife Service
USGS United States Geological Survey

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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1.0 INTRODUCTION
LSA Associates, Inc. (LSA) was retained by Gilbane Development Company to conduct a Western Riverside County Multiple Species Habitat Conservation Plan (MSHCP) consistency analysis and general biological study of the approximately 4.15-acre Madison Flats Project (project) site located at the southwest corner of Madison Street and Railroad Avenue in Riverside, Riverside County, California (Appendix A, Figure 1; all figures are provided in Appendix A). The study was conducted for the identification of potential jurisdictional waters and to address compliance with the MSHCP and the California Environmental Quality Act (CEQA). The study included a site visit on November 2, 2022, by LSA biologist Carla Cervantes.

1.1 PROJECT AREA
The project area consists of Assessor’s Parcel Numbers (APNs) 230-253-010, 230-245-013, 230-233- 013, and 230-245-015. The project area is approximately 4.15 acres. The project proposes to develop the entire area of the parcels.

1.2 PROJECT DESCRIPTION
The proposed project site is currently undeveloped. Project activities include the construction of a total of 120 affordable residential dwelling units within the proposed site (Figure 2).

1.3 GENERAL SETTING
The project site is undeveloped and is bordered to the north and west by residential development and Railroad Avenue, is bordered to the east by Madison Street and existing residential and commercial land uses, and is immediately adjacent to an existing rail line to the south. The project location is depicted on the United States Geological Survey (USGS) Riverside West, California topographic quadrangle map in Section 4 of Township 3 South, Range 5 West (USGS 2022) (Figure 1). The site is more or less flat and level, with elevations ranging from approximately 862 to 865 feet above mean sea level. The only mapped soils on the site are Arlington fine sandy loam, 0 to 2 percent slopes, and deep and Hanford fine sandy loam, 0 to 2 percent slopes (NRCS 2022) (Figure 3).

Soils observed throughout the site appear to be consistent with these designations.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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2.0 RESERVE ASSEMBLY ANALYSIS

2.1 CELL AND CRITERIA ANALYSIS
The MSHCP provides for the assembly of a Conservation Area consisting of Core Areas and Linkages for the conservation of covered species. The Conservation Area is to be assembled from portions of the MSHCP Criteria Area, which consist of quarter-section (i.e., approximately 160-acre) Criteria Cells, each with specific criteria for the species conservation within that cell.

The project site is not within the MSHCP Criteria Area; therefore, no cell or criteria analysis is required.

2.2 PUBLIC QUASI-PUBLIC LANDS ANALYSIS
The MSHCP provides for the assembly of a Conservation Area consisting of existing lands known to be in public/private ownership (also known as Public/Quasi-Public lands) and expected to be managed for open space value and/or in a manner that contributes to the conservation of covered species (including lands contained in existing reserves). As such, projects within and adjacent to public/quasi-public lands require an analysis of effects to public/quasi-public lands.

The project site is not within or adjacent to public/quasi public lands; therefore, no additional public/quasi-public lands analysis is required. It should also be noted that the project site is not located within or adjacent to MSHCP additional reserve lands (ARL) or non-MSHCP conservation easements.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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3.0 VEGETATION
The study area is highly disturbed due to historical routine maintenance for fire suppression and/or weed control. As a result of the disturbance caused by the historical maintenance practices, including disking, and laying a gravel base down, the site is devoid of vegetation. There are a few non-native palm trees within the project site, located in the center (Figure 4). Developed land cover is devoid of vegetation as it is either paved or is covered in a gravel base or compact soil that prevents vegetation from establishing. This land cover was present within the entirety of the project site. There are no other plant communities on the site. A complete list of plant species observed on the site is included in Appendix B. Figure 4 shows land cover and photograph locations, and site photographs are provided in Figure 5.

There are no native trees present within the project site; however, four palms were observed within the project site such as fan palm (Washingtonia sp.) and date palm (Phoenix sp.).

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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4.0 PROTECTION OF SPECIES ASSOCIATED WITH RIPARIAN/RIVERINE AREAS AND VERNAL POOLS (MSHCP SECTION 6.1.2)
Section 6.1.2 of the MSHCP requires assessment of impacts to riparian habitats, riverine areas, and vernal pools, including focused surveys for sensitive riparian bird and fairy shrimp species when suitable habitat is present. The intent of the assessment requirement is to provide for the protection of resources used by MSHCP-covered species, as well as existing and future downstream conservation areas. Riverine/riparian areas and vernal pools are defined in Section 6.1.2 of the MSHCP as follows:

Riparian/Riverine Areas are lands which contain habitat dominated by trees, shrubs, persistent emergents, or emergent mosses and lichens, which occur close to or which depend upon soil moisture from a nearby fresh water source; or areas with fresh water flow during all or a portion of the year.

Vernal pools are seasonal wetlands that occur in depression areas that have wetlands indicators of all three parameters (soils, vegetation and hydrology) during the wetter portion of the growing season but normally lack wetlands indicators of hydrology and/or vegetation during the drier portion of the growing season.

Obligate hydrophytes and facultative wetlands plant species are normally dominant during the wetter portion of the growing season, while upland species (annuals) may be dominant during the drier portion of the growing season. The determination that an area exhibits vernal pool characteristics, and the definition of the watershed supporting vernal pool hydrology, must be made on a case-by-case basis. Such determinations should consider the length of the time the area exhibits upland and wetland characteristics and the manner in which the area fits into the overall ecological system as a wetland. Evidence concerning the persistence of an area’s wetness can be obtained from its history, vegetation, soils, and drainage characteristics, uses to which it has been subjected, and weather and hydrologic records.

Fairy Shrimp. For Riverside, vernal pool and Santa Rosa fairy shrimp, mapping of stock ponds, ephemeral pools and other features shall also be undertaken as determined appropriate by a qualified biologist.

With the exception of wetlands created for the purpose of providing wetlands Habitat or resulting from human actions to create open waters or from the alteration of natural stream courses, areas demonstrating characteristics as described above which are artificially created are not included in these definitions.

4.1 RIPARIAN/RIVERINE

4.1.1 Methods
The project site was assessed for riparian/riverine areas at the time of the November 2, 2022, site visit. The assessment included identification and mapping of plant communities on the site as well PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Biology\MadisonFlats_MSHCP_BRA.docx (11/23/22) 5 as any drainage features. The assessment also included a review of seasonally appropriate aerial photographs from Google Earth. (The photos covered these dates: May 1994, June 2002, September 2003, December 2003, September 2004, October 2004, May 2005, December 2005, June 2006, August 2006, June 2009, November 2009, March 2011, June 2012, November 2012, November 2013, April 2014, February 2016, October 2016, March 2017, February 2018, June 2018, August 2018, August 2019, and April 2020.)

4.1.2 Existing Conditions and Results
There is an erosional rill and a culvert on the project site; however, these areas would not meet the MSHCP definition of riparian/riverine areas as they are dominated by bare ground and generally lack fresh water flow. There is no riparian vegetation on the project site.

4.2 VERNAL POOLS

4.2.1 Methods
The project site was assessed for vernal pools at the time of the November 2, 2022, site visit. The assessment included a search for depressions, indicators of wetland hydrology, suitable soils, and hydrophytic vegetation. The assessment also included a review of seasonally appropriate aerial photographs from Google Earth.

4.2.2 Existing Conditions and Results
No ponded areas or features resembling vernal pools were observed on the site. Low-lying areas that occur on site did not show signs of ponding or surface water and lacked hydrophytic vegetation.

The soils mapped and observed on the site are sandy loams, which are unlikely to support ponding sufficient for vernal pool formation. No areas containing surface water were observed on historical aerial imagery.

4.3 FAIRY SHRIMP

4.3.1 Methods
The project site was assessed for fairy shrimp habitat at the same time and using the same methods as the assessment for vernal pools. The MSHCP calls for habitat assessments for three sensitive species of fairy shrimp: Santa Rosa Plateau fairy shrimp (Linderiella santarosae), Riverside fairy shrimp (Streptocephalus woottoni), and vernal pool fairy shrimp (Branchinecta lynchi). Santa Rosa Plateau fairy shrimp occurs only on the Santa Rosa Plateau of extreme southwest Riverside County.

A fourth sensitive species of Southern California, San Diego fairy shrimp (Branchinecta sandiegonensis) is found primarily in coastal areas of Orange and San Diego Counties. It has been found as far inland as the Wildomar area of southwest Riverside County but is not expected in the project area. These sensitive fairy shrimp species inhabit vernal pools as well as stock ponds, large road ruts, or other similar habitats that pond water long enough to allow growth and reproduction.

To provide fairy shrimp habitat, a feature must regularly pond water for at least 18 days for vernal pool fairy shrimp (Eriksen and Belk 1999) and 2 months for Riverside fairy shrimp (USFWS 2012).

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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4.3.2 Existing Conditions and Results
As noted above, there are no vernal pools or similar features on the project site. There are no depressions on the site that hold water long enough to eliminate upland vegetation. No inundation on the site was seen in seasonally appropriate aerial photographs, and the sandy loam soils are porous and unsuitable for ponding of sufficient duration to provide habitat suitable for fairy shrimp habitat. Given these factors, the site does not have habitat suitable for sensitive fairy shrimp species, and no surveys are required.

4.4 RIPARIAN BIRDS

4.4.1 Methods
Habitat suitability for riparian birds, including least Bell’s vireo (LBVI; Vireo bellii pusillus), southwestern willow flycatcher (SWFL; Empidonax traillii extimus), and yellow-billed cuckoo (YBCU; Coccyzus americanus) was assessed in conjunction with the assessment for riverine/riparian areas.

4.4.2 Existing Conditions and Results
There are no riparian/riverine areas or any habitat suitable for riparian birds on the project site.

Therefore, no surveys for riparian birds will be required.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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5.0 PROTECTION OF NARROW ENDEMIC PLANT SPECIES (MSHCP SECTION

6.1.3)
Section 6.1.3 of the MSHCP requires focused surveys for specified sensitive plant species if the project is located within a Narrow Endemic Plant Species Survey Area (NEPSSA) and suitable habitat is present. The project site is not within an NEPSSA.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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6.0 ADDITIONAL SURVEY NEEDS AND PROCEDURES (MSHCP SECTION 6.3.2) MSHCP Section 6.3.2 requires surveys for additional plants, amphibians, small mammals, and burrowing owl for projects located within mapped survey areas.

6.1 CRITERIA AREA PLANT SPECIES
The project site is not within a mapped survey area for Criteria Area Species Survey Area (CASSA) plant species; therefore, no surveys for Criteria Area plant species are required.

6.2 AMPHIBIANS
The project site is not within a mapped survey area for amphibian species ; therefore, no surveys for amphibian species are required.

6.3 BURROWING OWL
The project site is not located within the MSHCP burrowing owl survey area. Burrowing owls are found in open, dry grasslands, agricultural and range lands, and desert habitats often associated with burrowing animals. They can also inhabit grass, forb, and shrub stages of pinyon and ponderosa pine habitats. They nest in abandoned burrows of ground squirrels or other animals, in pipes, under piles of rock or debris, and in other similar features. Habitat suitability for burrowing owl (BUOW) was assessed during the November 2, 2022, site visit. Burrowing owl habitat is not present on site, and no further surveys are required for this species.

6.4 MAMMALS
The project site is not within a mapped survey area for mammals.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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7.0 INFORMATION ON OTHER SPECIES

7.1 DELHI SANDS FLOWER-LOVING FLY
The MSHCP requires surveys for Delhi sands flower-loving fly (Rhaphiomidas terminatus abdominalis) in most areas of mapped Delhi series soils where suitable habitat exists (MSHCP Section 9).

The project site is not within an area of mapped Delhi soils, and (as noted in Section 1.0, above) soil observed throughout the site is sandy loam, which is inconsistent with Delhi soils; therefore, no survey or additional analysis is required for this species.

7.2 SPECIES NOT ADEQUATELY CONSERVED
Some species that will eventually have full coverage under the MSHCP are not considered adequately conserved until requirements indicated in Table 9-3 of MSHCP Section 9 are met.

7.2.1 Methods
A literature review was conducted to investigate the potential occurrence of special-status species on the project site or in the vicinity. Database records for a 1-mile radius of the project site were searched on November 1, 2022, using Rarefind 5 (version 5.2.14, California Department of Fish and Wildlife, Natural Diversity Database, https://www.wildlife.ca.gov/Data/CNDDB/Maps-and-Data).

7.2.2 Existing Results
None of the species lacking full coverage has been reported from the project site, and none was observed during the site visit. Given the habitat quality, none of these species has more than a low potential of being present.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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8.0 GUIDELINES PERTAINING TO THE URBAN/WILDLANDS INTERFACE (MSHCP SECTION 6.1.4)
To preserve the integrity of areas described as existing or future MSHCP Conservation Areas, the guidelines contained in Section 6.1.4 (Urban Wildlands Interface Guidelines) are to be implemented for projects that are adjacent to either existing conservation or land described for conservation in the MSHCP Criteria Area.

The project site is not adjacent to conserved lands or lands in the Criteria Area that are described for conservation. Therefore, the Urban Wildlands Interface Guidelines do not apply to this project.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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9.0 POTENTIAL JURISDICTIONAL WATERS AND STREAMBEDS
An erosional rill feature exists in the eastern portion of the project site. It originates from a culvert along the Burlington Northern Santa Fe (BNSF) railway right-of-way that occurs to the south and southeast of the project site. It appears that the erosional rill runs northwest into a storm drain grate on the northwestern portion of the project site for approximately 94 feet and does not connect to any downstream waters. The feature conveys nuisance flows and stormwater runoff from the surrounding unvegetated and bare ground areas of the project site.

This type of feature is generally not considered jurisdictional under the Federal Clean Water Act (CWA) because it occurs in and drains only uplands, does not occur along or in place of a historic drainage, and is ephemeral in nature. Additionally, this feature does not contain California Department of Fish and Wildlife (CDFW) riparian habitat or aquatic resources and is not considered a natural waterway regulated by the CDFW. It is LSA’s opinion that this feature would not be subject to the regulatory authority of the United States Army Corps of Engineers (USACE) under Section 404 of the CWA, the CDFW under Section 1602 of the California Fish and Game Code, the Regional Water Quality Control Board (RWQCB) under Section 401 of the CWA, and the Porter-Cologne Water Quality Control Act and Section 13000 of the California Water Code.

The findings and conclusions presented in this report, including the location and extent of wetlands and other waters subject to regulatory jurisdiction, represent the professional opinion of LSA. These findings and conclusions should be considered preliminary until verified by the USACE, CDFW, and RWQCB.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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10.0 NESTING BIRDS
During the bird breeding season (typically February 1 through August 31), electrical distribution poles and large trees on or adjacent to the project site may be used by hawks, ravens, or other large birds for nesting. Trees, shrubs, and other vegetation may provide nest sites for smaller birds, and burrowing owls may nest in ground squirrel burrows, pipes, or similar features. Most birds and their active nests are protected from “take” (meaning destruction, pursuit, possession, etc.) under the Migratory Bird Treaty Act and/or Sections 3503–3801 of the California Fish and Game Code.

Activities that cause destruction of active nests, or that cause nest abandonment and subsequent death of eggs or young, may constitute violations of one or both of these laws.

If vegetation is to be removed during the nesting season (February 1 through August 31), a pre- construction nesting bird survey shall be conducted and avoidance measures taken to ensure that no take of birds or their nests will occur.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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11.0 CEQA COMPLIANCE

11.1 ADOPTED HABITAT CONSERVATION PLANS
Section 10(a)(2)(A) of the 1973 Federal Endangered Species Act requires the preparation of a habitat conservation plan (HCP) for incidental take of threatened or endangered species when there is no federal agency involvement in a project. Continuing land development may cause incidental take of listed species and, therefore, HCPs have been prepared for areas within western Riverside County.

The MSHCP and the Stephens’ Kangaroo Rat (SKR) HCP are the principal habitat conservation plans in western Riverside County. The United States Fish and Wildlife Service (USFWS) regional office maintains a current list of habitat conservation plans for the Southern California region.

The project site is within the MSHCP area but outside the SKR HCP fee area. Focused surveys for SKR will not be required for this project, and a fee associated with the SKR HCP is not required. The project site is not subject to any other adopted HCP.

11.2 THREATENED AND ENDANGERED SPECIES
The USFWS and CDFW may list species as threatened or endangered under the Federal and State Endangered Species Acts. The USFWS can designate critical habitat that identifies specific areas, either occupied or unoccupied, that are essential to the conservation of a listed species. Critical habitat areas may require special management considerations or protections. The USFWS and CDFW have issued permits for the take of most threatened and endangered species within the MSHCP Plan Area. The MSHCP covers impacts to these species. However, if a project has the involvement of a federal agency, that agency is required to address impacts to listed species and critical habitat by consulting with the USFWS. The USFWS has indicated in the permit issued for the MSHCP that, in such cases, the consultation will be expedited and that no restrictions will be imposed on the project beyond those specified in the MSHCP.

No threatened or endangered species are expected to occur on the project site. No critical habitat occurs on the project site. Two federal and/or State-listed species have been reported within 1 mile of the project site according to California Natural Diversity Database records: Swainson’s hawk (Buteo swainsoni) and San Bernardino kangaroo rat (Dipodomys merriami parvus). Table A describes the habitat requirements for all species, along with an assessment of habitat and the likelihood of the species occurring on the site.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Biology\MadisonFlats_MSHCP_BRA.docx (11/23/22) 14 Table A: Threatened and Endangered Species
Species Status MSHCP Habitat Activity
Period Occurrence Probability
Birds
Buteo swainsoni
Swainson’s
hawk
(nesting)
US: –
CA: ST
MSHCP: C
Open desert, grassland, or cropland
containing scattered, large trees or small
groves. Breeds in stands with few trees in
juniper-sage flats, riparian areas, and in
oak savannah in the Central Valley. Forages
in adjacent grasslands or suitable grain or
alfalfa fields, or livestock pastures. Breeds
and nests in western North America;
winters in South America. Uncommon
breeding resident and migrant in the
Central Valley, Klamath Basin,
Northeastern Plateau, Lassen County, and
Mojave Desert. Very limited breeding
reported from Lanfair Valley, Owens
Valley, Fish Lake Valley, and Antelope
Valley. In Southern California, now mostly
limited to spring and fall transients.

Formerly abundant in California with wider
breeding range.

Spring and
fall (in
migration)
Not Expected. No
suitable habitat; the
project site is highly
disturbed. Site is in
urban setting without
adjacent suitable
foraging areas.

Mammals
Dipodomys
merriami parvus
San Bernardino
kangaroo rat
US: FE
CA: SCE
MSHCP: S
Gravelly and sandy soils of alluvial fans,
braided river channels, active channels and
terraces; San Bernardino Valley (San
Bernardino County) and San Jacinto Valley
(Riverside County).

Nocturnal,
active year-
round
Not Expected. No
suitable habitat; the
project site is highly
disturbed.

Sources: CNDDB (CDFW 2022); Biogeographic Information and Observation System (CDFW n.d.).

US: Federal Classifications
FT = Listed as threatened
FE = Listed as endangered
CA: State Classifications
SA = Special Animal. Refers to any other animal monitored by the Natural Diversity Database, regardless of its legal or rarity status.

SSC = Species of Special Concern. Refers to animals with vulnerable or seriously declining populations.

ST = Listed as threatened
SCE = State Candidate for Endangered
Western Riverside County MSHCP Status
S = Species is covered and adequately conserved under the MSHCP, but surveys are required within indicated habitats and/or su rvey areas.

P = Species is covered and will be adequately conserved when MSHCP specified requirements are met.

C = Species is covered and adequately conserved under the MSHCP.

CA = California
CDFW = California Department of Fish and Wildlife
CNDDB = California Natural Diversity Database
MSHCP = Multiple Species Habitat Conservation Plan
US = United States
USFWS = United States Fish and Wildlife Service

11.3 OTHER SPECIAL-STATUS SPECIES
Other special-status species may occur on the proposed project site. The CDFW, USFWS, local agencies, and special interest groups, such as the California Native Plant Society (CNPS), maintain lists of species that they consider to be in need of monitoring. Legal protection for special-status species varies widely.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Biology\MadisonFlats_MSHCP_BRA.docx (11/23/22) 15 The special-status species listed in Table B may be expected to occur in the general project vicinity but are not covered under the MSHCP, or are not adequately conserved by the MSHCP at this time.

Some of these species have a low potential of occurring on the project site. However, none of these species that may be present is listed as threatened or endangered under State or federal law, and the site does not contain high quality habitat for any of these species. Therefore, any impacts to these species by the project would not be substantial. Neither additional surveys nor additional conservation measures will be required by this project for these species.

Table B: Special-Status Species Potentially Occurring in the Project Vicinity that are not Adequately Covered by the MSHCP
Species Status Habitat and Distribution Activity Period Occurrence Probability
Invertebrates
Neolarra alba
white cuckoo bee
US: –
CA: SA
Found in dry, sandy areas (particularly
deserts) in the American southwest
near the host plants for Perdita bee
species, of which it is a nest parasite.

Known only from localities in Southern
California. All occurrences are
historical.

Unknown Not Expected. No
suitable habitat; the
project site is highly
disturbed. Species is
possibly extirpated.

Eugnosta busckana
Busck's gallmoth
US: –
CA: SA
Found in coastal dunes and coastal
scrub. Exact species range is unknown
but believed to extend from San Diego
north to El Segundo. A food plant for
this species is Cuscuta californica.

Known to form galls in the stems of
Encelia californica.

November to
February
Not Expected. No
suitable habitat; the
project site is highly
disturbed. Species is
possibly extirpated.

Mammals
Lasiurus xanthinus
western yellow bat
US: –
CA: SSC
Found mostly in desert and desert
riparian areas of the southwest United
States, but it is also expanding its
range with the increased usage of
native and non-native ornamental
palms in landscaping. Individuals
typically roost amid dead fronds of
palms in desert oases but have also
been documented roosting in
cottonwood trees. Forages over many
habitats.

Year-round;
nocturnal
Low. Site has
potential low quality
roosting habitat in
palms found on site,
The site is
surrounded by urban
development as well
as an adjacent
railway line that may
deter the species.

Nyctinomops
femorosaccus
pocketed free-tailed
bat
US: –
CA: SSC
Usually associated with cliffs, rock
outcrops, or slopes. May roost in
buildings (including roof tiles) or
caves. Rare in California, where it is
found in Riverside, San Diego, Imperial
and possibly Los Angeles Counties.

More common in Mexico.

Year-round;
nocturnal
Not Expected. No
suitable habitat; the
project site is highly
disturbed.

Source: California Natural Diversity Database (CDFW 2022); Biogeographic Information and Observation System (CDFW n.d.).

US: Federal Classifications
FT = Listed as threatened
FE = Listed as endangered
CA: State Classifications
SSC = Species of Special Concern. Refers to animals with vulnerable or seriously declining populations.

SA = Special Animal. Refers to any other animal monitored by the Natural Diversity Database, regardless of its legal or rarity status.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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11.4 WILDLIFE MOVEMENT, CORRIDORS AND NURSERY SITES
Wildlife movement includes seasonal migration along corridors, as well as daily movements for foraging. Migration corridors may include areas of unobstructed movement of deer, riparian corridors providing cover for migrating birds, routes between breeding waters and upland habitat for amphibians, and between roosting and feeding areas for birds.

The project site is adjacent to a major road, railway line, interstate highway, and existing development that already restrict wildlife movement in the project vicinity. The proposed project would not substantially limit wildlife movement.

11.5 NATURAL COMMUNITIES OF INTEREST
Riparian habitats, oak woodlands, and vernal pools are among the natural communities of interest to the CDFW.

There are no riparian communities, vernal pools, or other sensitive plant communities on the project site.

11.6 WETLANDS
There are no wetlands on the project site.

11.7 LOCAL POLICIES AND ORDINANCES PROTECTING BIOLOGICAL RESOURCES City and County General Plans and development ordinances may include regulations or policies governing biological resources. For example, policies may include tree preservation, locally designated species survey areas, local species of interest, and significant ecological areas.

According to the County of Riverside (Chapter 12.24. Tree Removal), a tree preservation ordinance exists for unincorporated areas of Riverside County. It states removal of native trees with a height of 30 feet and a diameter breast height of 12 inches on any land that is above half an acre and above 5,000 feet in elevation is not allowed without a permit. The Riverside County Oak Tree Management Guidelines is a policy that addresses the treatment of oak woodlands within Riverside County.

Currently, the City of Riverside does not have an adopted tree ordinance. Although four palm trees occur on site, they are not subject to any tree removal ordinances, and no permit for removal will be required.

11.8 INDIRECT EFFECTS
Indirect impacts to surrounding areas as a result of the project may include, but are not limited to, increased dust, noise, lighting, traffic, and storm water runoff. Because of the small scale of the project and its location within a landscape that is already highly disturbed or developed, substantial indirect impacts to sensitive biological resources are not anticipated.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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11.9 CUMULATIVE EFFECTS
Project construction will not contribute to the incremental loss of non-native grassland in the region, including potential habitat for some special-status species. The project is not expected to result in substantial cumulative effects due to the following factors:
• Existing residential and commercial development within the general vicinity of the project; • The project’s proximity to the BNSF Railroad right-of-way; • The study area does not function as a corridor for wildlife movement; and • The study area’s existing highly disturbed state.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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12.0 REFERENCES
California Department of Fish and Wildlife (CDFW). 2022. California Natural Diversity Database.

RareFind 5 (Version 5.2.14). Website: https://www.wildlife.ca.gov/Data/CNDDB/Maps-and- Data (accessed November 1, 2022).
_____. n.d. Biogeographic Information and Observation System (BIOS). Website:
https://apps.wildlife.ca.gov/bios/ (accessed November 1, 2022).

County of Riverside. 2006. Burrowing Owl Survey Instructions for the Western Riverside Multiple Species Habitat Conservation Plan Area.

Eriksen, C., and D. Belk. 1999. Fairy Shrimps of California’s Puddles, Pools, and Playas. Mad River Press, Inc., Eureka, California.

Natural Resources Conservation Service (NRCS). 2022. Web Soil Survey. Website: http://websoil survey.nrcs.usda.gov/app/WebSoilSurvey.aspx (accessed November 1, 2022).

United States Fish and Wildlife Service (USFWS). 2012. Endangered and Threatened Wildlife and Plants; Revised Critical Habitat for the Riverside Fairy Shrimp; Final Rule. Federal Register 77:
72069-72140 (December 4, 2012).
______. 2022. Wetlands Mapper. Website: https://www.fws.gov/wetlands/data/mapper.html (accessed November 1, 2022).

United States Geological Survey (USGS). 2022. Riverside West, California topographic quadrangle map in Section 4 of Township 3 South, Range 5 West.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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13.0 CERTIFICATION STATEMENT
I hereby certify that the statements furnished in this report present the data and information required for this biological evaluation and the facts, statements, and information presented are true and correct to the best of my knowledge and belief.

Date: November 23, 2022 Signature:

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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APPENDIX A

FIGURES
Figure 1: Regional and Project Location
Figure 2: Site Plan
Figure 3: Soils
Figure 4: Vegetation, Land Use, and Photo Locations
Figure 5: Site Photographs
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices SOURCE: USGS The National Map
I:\GBC2201.02\GIS\Pro\Madison Fla
ts\Madison Flats.aprx (11/8/2022)
FIGURE 1
Madison Flats Project

S A N B E R N A R D I N O

C O U N T Y

R I V E R S I D E

1. STREET FACING PRIVATE PATIOS

2. OPEN STAIR VERTICAL CIRCULATION

3. RESIDENTIAL COURTYARDS FACING STREET

4. CENTRALIZED SENIOR PARKING

5. FAMILY PARKING

6. CORRIDOR SOUND BUFFER

7. INTERGENERATIONAL ZONE

KEYNOTES
2/3 STORY SENIOR RESIDENTIAL BUILDINGS
2/3 STORY FAMILY RESIDENTIAL BUILDINGS

AMENITIES AT GROUND FLOOR
10 MINUTE WALK

LANDSCAPE / COURTYARDS
LEGEND
SCALE 1” = 60’0 60 1203015
DESIGN Site Plan
1 222
4 22 33333 3 32
7 2222
5 6 6 6
September 2022 | Madison Residential City Submittal | The Gilbane Company A05 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices AoA
HgA
I:\GBC2201.02\GIS\Pro\Madison Flats\Madison Flats.aprx (11/8/2022) FIGURE 3
Madison Flats Project
Soils
Project Location
Soils
AoA - Arlington fine sandy loam, deep, 0 to 2 percent slopes HgA - Hanford fine sandy loam, 0 to 2 percent slopes
SOURCE: Google Imagery (2020)
0 125 250
FEET
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices !Å
!Å
!Å
!Å
I:\GBC2201.02\GIS\Pro\Madison Flats\Madison Flats.aprx (11/8/2022) FIGURE 4
Madison Flats Project
Veg
etation, Land Use, and Photo Locations
Project Location
!Å Photo Locations
Vegetation and Land Use
Developed
SOURCE: Google Imagery (2020)
4 3
2 1
0 125 250
FEET
Indiana Ave
Casa Blanca St
Railroad Ave
Evans St
Madison St91
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices I:\GBC2201\G\Photos_Bio.cdr 1 2 22 (1 / /20 )
FIGURE 5
Site Photographs
Madison Flats Project
Photo 1: View from southwestern side looking northeast. Photo 2: View from south side looking northeast.

Photo 3: View from northwestern side looking South. Photo 4: View from north side looking southwest along Railroad Avenue.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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APPENDIX B

PLANT AND ANIMAL SPECIES OBSERVED
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Biology\MadisonFlats_MSHCP_BRA.docx (11/23/22) B-1 Plant and Animal Species Observed
Scientific Name Common Name

MAGNOLIID FLOWERING PLANTS
Arecaceae Palm Family
Phoenix sp. (non-native species) date palm
Washingtonia sp. (non-native species) fan palm
Chenopodiaceae Saltbush Family
Salsola tragus (non-native species) Russian thistle

MONOCOTS FLOWERING PLANTS
Poaceae Grass Family
Cynodon dactylon (non-native species) Bermuda grass
BIRDS
Tyrannidae Tyrant Flycatchers
Sayornis nigricans black phoebe
Passeridae Old World Sparrows
Passer domesticus (non-native species) house sparrow
Fringillidae Finches
Haemorhous mexicanus house finch
Parulidae Wood Warblers
Setophaga coronata yellow-rumped warbler

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

Environmental Initial Study/Mitigated Negative Declaration # PR-2021-001197

APPENDIX D

Cultural Resources Study for the Madison Residential Project (APNs 230-233-013, 230-245-013, 230-245-015, and 230-253-010)/Cultural Resources Assessment for the Previous Project on these Parcels in Riverside, Riverside County, California (Cultural Revalidation Assessment) (LSA, October 2022)
and Cultural Resources Assessment for Harley Davidson Storage Project, Assessor’s Parcel Numbers 230‐233‐013, 230‐245‐013, 230‐245‐015, and 230‐253‐010, City of Riverside, Riverside County, California
(Cultural Resources Study) (LSA, November 2017)

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

CARLSBAD
CLOVIS
IRVINE

LOS ANGELES

PALM SPRINGS

POINT RICHMOND

RIVERSIDE

ROSEVILLE

SAN LUIS OBISPO
1500 Iowa Avenue, Suite 200, Riverside, California 92507 951.781.9310 www.lsa.net

October 25, 2022
Scott K. Watson
Community & Economic Development
Historic Preservation
City of Riverside
3900 Main Street, 5th Floor
Riverside, CA 92522

Subject: Cultural Resources Study for the Madison Residential Project (APNs 230-233-013, 230- 245-013, 230-245-015, and 230-253-010)/Cultural Resources Assessment for the Previous Project on these Parcels in Riverside, Riverside County, California (LSA Project No. GBC2201)
Dear Mr. Watson:

Please note that the findings of the LSA cultural resources assessment conducted for the previous project on these parcels (Harley Davidson Storage Project, dated November 2017) are still valid (no “historical resources” under the California Environmental Quality Act/no potential for significant impacts to cultural resources). However, LSA has determined that the recommendations should be modified from monitoring to Worker’s Environmental Awareness Program training and that Standard Conditions (notification and retention of a qualified archaeologist in the event of positive results, notification of the Coroner in the event human remains are identified, etc.) should be carried forward. Please let us know if you have any questions; you can contact me at 951-781-9310 or [email protected]. Your assistance is greatly appreciated.

Sincerely,
LSA Associates, Inc.

Rory Goodwin, RA | Associate/Archaeologist

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Updated November 2017

CULTURAL RESOURCES ASSESSMENT
HARLEY DAVIDSON STORAGE PROJECT
CITY OF RIVERSIDE
RIVERSIDE COUNTY, CALIFORNIA

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Updated November 2017

CULTURAL RESOURCES ASSESSMENT
HARLEY DAVIDSON STORAGE PROJECT
ASSESSOR’S PARCEL NUMBERS 230 ‐233 ‐013, 230 ‐245 ‐013, 230 ‐245 ‐ 015, AND 230 ‐ 253 ‐ 010
CITY OF RIVERSIDE
RIVERSIDE COUNTY, CALIFORNIA
Prepared for:

Michael Brendecke, PE
Adkan Engineers
6879 Airport Drive
Riverside, California 92504
Prepared by:

Gini Austerman, M.A., RPA
LSA Associates, Inc.
1500 Iowa Avenue, Suite 200
Riverside, California 92507
LSA Project No. ADK1601

National Archaeological Database Information:

Type of Study: Assessment (Records search and reconnaissance survey) Sites Recorded: LSA‐ADK‐H‐1
USGS Quadrangle: Riverside West, California 7.5'
Acreage: Approximately 4 acres
Key Words: Phase I Survey, Casa Blanca Station

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices C ULTURAL R ESOURCES A SSESSMENT
U PDATED N OVEMBER 2017
H ARLEY D AVIDSON S TORAGE P ROJECT
R IVERSIDE , C ALIFORNIA

R:\ADK1601\ADK1601\report\For Steve\ADK1601 CT revised 11.3.17.docx (11/3/2017) i MANAGEMENT SUMMARY
LSA is under contract to Adkan Engineers to prepare a Cultural Resources Assessment for the Harley Davidson Storage Project (project) located on the south side of Railroad Avenue between Jefferson and Madison Streets in the City of Riverside, California (approximately 4 acres). This work was completed pursuant to the California Environmental Quality Act (CEQA). The proposed project is for commerc
ial development.

A cultural resources records search, historic background research, and field survey were conducted for the project. Results of the records search indicate no archaeological or historic resources were identified within the project. The Upper Riverside Canal and three historic‐period properties are located within 300 feet north of the project. During the field survey, a historic foundation, three palm
trees, and a hydrant valve cover were noted within the project. Historic research indicates that the historic foundation is a remnant of the former Casa Blanca Station, which was located within the project until 1966, when it was
demolished. The date of the valve cover could not be substantiated and is similar to those currently in use today.

Analysis of the property indicates that the foundation (LSA‐ADK‐H‐1) does not meet any of the criteria for listing in the National Register of Historic Plac es or California Register of Historical Resources or for local designation. Of the seven elements of integrity, the foundation possesses integrity of location only. Due to the fact that the Casa Blanca Station has been demolished, the elements of design, setting, workmanship, materials, feeling, and association do not meet the thresholds to qualify for listing in
any register. Therefore, the foundation (LSA‐ADK‐H‐1) is not considered a “historical resource” as defined by CEQA.

Despite the fact that the project area has been previously developed and disturbed, the presence of the foundation feature and the palm trees, as well as the proximity of previously docu mented resources, indicates a potential for subsurface resources. Therefore, limited monitoring of initial ground disturbance is recommended. In the event any archaeological resources are identified during earthmoving activities, work in the area should be halted until the nature and significance of the find can be assessed by a qualified archaeologist.

If human re
mains are encountered, State Health and Safety Code Section 7050.5 states that no further disturbance shall occur until the County Coroner has made a determination of origin and disposition pursuant to Public Resources Code Section 5097.98. The County Coroner must be notified of the find immediately. If the remains are det ermined to be prehistoric, the Coroner will notify the Native American Heritage Commission (NAHC), which will determine and notify a Most Likely Descendant (MLD). With the permission of the landowner or his/her authorized representative, the MLD may inspect the site of the discovery. The MLD shall complete the inspection within 48
hours of notification by the NAHC. The MLD may recommend scientific removal and nondestructive analysis of human remains and items associated with Native American burials.

R:\ADK1601\ADK1601\report\For Steve\ADK1601 CT revised 11.3.17.docx (11/3/2017) ii TABLE OF CONTENTS
MANAGEMENT SUMMARY ..................................................................................................................... i TABLE OF CONTENTS .............................................................................................................................. ii FIGURES ........................................................................................................................................... iii TABLE .............................................................................................................................................. iii APPENDIX ........................................................................................................................................ iii INTRODUCTION ...................................................................................................................................... 1 NATURAL SETTING .................................................................................................................................. 3 BIOLOGY ........................................................................................................................................... 3 GEOLOGY.......................................................................................................................................... 3 HYDROLOGY ..................................................................................................................................... 3 CULTURAL SETTING ................................................................................................................................ 4 PREHISTORY ..................................................................................................................................... 4 ETHNOGRAPHY ................................................................................................................................ 4 Gabrielino .................................................................................................................................. 5 Cahuilla ...................................................................................................................................... 5 Luiseño ...................................................................................................................................... 6 HISTORIC CONTEXT .......................................................................................................................... 6 Spanish Period ........................................................................................................................... 6 Mexican Period .......................................................................................................................... 7 American Period ........................................................................................................................ 7 ME
THODS ............................................................................................................................................... 9 RECORDS SEARCH ............................................................................................................................ 9 ADDITIONAL RESEARCH ................................................................................................................... 9 FIELD SURVEY ................................................................................................................................... 9 RESULTS ................................................................................................................................................ 10 RECORDS SEARCH .......................................................................................................................... 10 Resources ................................................................................................................................ 10 Reports .................................................................................................................................... 11 Additional Research ................................................................................................................. 11 FIELD SUR
VEY ................................................................................................................................. 12 LSA‐ADK‐H‐1 ............................................................................................................................ 12 SIGNIFICANCE EVALUATION ................................................................................................................. 15 DEFINITIONS ................................................................................................................................... 15 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices C ULTURAL R ESOURCES A SSESSMENT
U PDATED N OVEMBER 2017
H ARLEY D AVIDSON S TORAGE P ROJECT
R IVERSIDE , C ALIFORNIA

R:\ADK1601\ADK1601\report\For Steve\ADK1601 CT revised 11.3.17.docx (11/3/2017) iii National Register of Historic Places ........................................................................................ 15 California Register of Historical Resources.............................................................................. 16 City of Riverside Cultural Resources Ordinance ...................................................................... 17 EVALUATION .................................................................................................................................. 18 Summary of History ................................................................................................................. 18 Significance Evaluation ............................................................................................................ 18 CONCLUSION ........................................................................................................................................ 20 FINDINGS AND RECOMMENDATIONS............................................................................................ 20 REFERENCES ......................................................................................................................................... 21

FIGURES
Figure 1: Regional and Project Location ................................................................................................. 2 Figure 2: Detail of Hydrant Valve Cover ............................................................................................... 13 Figure 3: Site Overview, facing west. ................................................................................................... 13 Figure 4: Concrete Foundation, facing east. ........................................................................................ 14

TABLE
Table A: Cultural Resources within One Mile of the Project ................................................................ 10

APPENDIX
A: California Department of Parks and Recreation (DPR) Forms PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices C ULTURAL R ESOURCES A SSESSMENT
U PDATED N OVEMBER 2017
H ARLEY D AVIDSON S TORAGE P ROJECT
R IVERSIDE , C ALIFORNIA

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INTRODUCTION
LSA is under contract to Adkan Engineers to prepare a Cultural Resources Assessment for the Harley Davidson Storage Project (project) located on the south side of Railroad Avenue, north of the existing Burlington Northern Santa Fe railroad tracks between Jefferson and Madison Streets in the City and County of Riverside, California (approximately 4 acre s). This work was completed pursuant to the California Environmental Quality Act (CEQA; as amended January 1, 2016): Public Resources Code (PRC), Division 13 (Environmental Quality), Chapter 2.6 Section 21083.2 (Archaeological Resources) and Section 21084.1 (Historical Resources); and the Guidelines for CEQA (as amended December 1, 2015), California Code of Regulations Title 14, Chapter 3, Article 5 Section 15064.5 (Determining the Significance of Impacts on Historical and Unique Archaeological Resources).

The project site is depicted on the United States Geological Survey (USGS) Riverside West, California

7.5‐minute topographic quadrangle in Township 4 South, Range 5 West, Section 4, San Bernardino Base Line and Meridian (U
SGS 1980; Figure 1).

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

JEFFERSON STREET

MADISON STREET

VICTORIA AVENUE
Harley Davidson Storage Project
Regional and Project Location
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Project Area
Regional Location
SOURCE: USGS 7.5' Quad: Riverside West (80), CA; ESRI Streetmap, 2013/Riverside County, 2015.

FIGURE 1
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PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices C ULTURAL R ESOURCES A SSESSMENT
U PDATED N OVEMBER 2017
H ARLEY D AVIDSON S TORAGE P ROJECT
R IVERSIDE , C ALIFORNIA

R:\ADK1601\ADK1601\report\For Steve\ADK1601 CT revised 11.3.17.docx (11/03/17) 3 NATURAL SETTING
The natural setting of the project vicinity is presented based on the underlying theoretical assumption that humans and human societies are in continual interaction with the physical environment. Being an integral and major part of the ecological system, humans respond to the limits imposed by the environment by technological and behavioral adaptation. Locations of archaeological sites are based on the constraints of these interactio ns, whether it is proximity to a
particular resource, topographical restrictions, or shelter and protection. Sites will also contain an assemblage of artifacts and ecofacts consistent with the particular interaction.

BIOLOGY
At an elevation of approximately 900 feet about mean sea level (amsl), the project falls within the Lower Sonoran Life Zone (Bean 1977). This zone ranges from below sea level to an elevation of approximately 3,500 feet asml and is represented in the Mojave and Colorado Deserts. Plants common to the area include cacti, dese rt agave, cheesebrush, catclaw, acacia, and seasonal grasses.

Animals typically found within this zone include deer, coyote, foxes, rabbits, rodents, ravens, reptiles, and insects.

GEOLOGY
The entire study area is within the north central Peninsular Ranges Geomorphic Province of California. This geomorphic province is characterized by a series of mountain ranges separated by northwest‐trending valleys, sub‐parallel to branching faults from the San Andreas Fault. The Peninsular Ranges Province extends 900 miles from the Transverse Ranges to the north and southward to the ti
p of Baja California (Norris and Webb 1976). The parcel is southwest of the San Jacinto Fault Zone and southwest of the Box Springs Mountains. The natural topography of the study area is characterized as valley lowland intersected by rolling hills and surrounded by mountain ranges. Mt. Rubidoux is approximately fou
r miles northeast of the project (Norris and Webb 1976).

HYDROLOGY
The nearest water source is the Santa Ana River, which is within three miles north of the project.

This river is the largest stream system in Southern California, extending from its headwaters in the San Bernardino Mountains over 100 miles southwest to the Pacific. Average annual precipitation ranges from 12 inches per year in the coastal plain to 40 inches per year in the San Bernardino Mountai
ns to the north (Beck and Haase 1974). Precipitation usually occurs in the form of winter rain, with warm monsoonal showers in summer. Winter and spring floods commonly result from storms during wet years. Before European American settlement, the San ta Ana River was a perennial stream flowing from the San Bernardino and San Gabriel Mountains to the Pacific Ocean.

Many springs, marshes, swamps, and bogs were interspersed throughout the watershed (Beck and Haase 1974).

R:\ADK1601\ADK1601\report\For Steve\ADK1601 CT revised 11.3.17.docx (11/03/17) 4 CULTURAL SETTING

PREHISTORY
The description of various prehistoric stages or chronologies identifying cultural evolution in the Southern California area has been attempted numerous times. Several of these chronologies are reviewed in Moratto (1984). No single description is universally accepted. The various chronologies are based primarily on material developments identified by researchers familiar with sites in a region, and variation exists essentially due to the differences in those items found at the sites. Small
differences occur over time and space, which combine to form patterns that are variously interpreted.

Currently, two primary regional culture chronology syntheses are commonly referenced in the archaeological literature. The first, Wallace (1955), describe s four cultural horizons or time periods:

Horizon I – Early Man (9000–6500 BC), Horizon II – Milling Stone Assemblages (6500–2000 BC), Horizon III – Intermediate Cultures (2000 BC–AD 200), and Horizon IV – Late Prehistoric Cultures (AD 200–historic contact). This chronology was refined (Wallace 1978) using absolute chronological dates unavailable in 1955.

The second cultural chronology (Warren 1968) is bas
ed broadly on Southern California prehistoric
cultures, and was also revised (Warren 1984; Warren and Crabtree 1986). Warren’s chronology includes five periods in prehistory: Lake Mojave (7000–5000 BC), Pinto (4000–3000 BC), Gypsum (1000 BC–AD 1), Saratoga Springs (AD 500–1000), and Protohistoric (AD 1500–historic contac t).

Changes in settlement pattern and subsistence focus are viewed as cultural adaptations to a changing environment, which begins with gradual environmental warming in the late Pleistocene, continues with the desiccation of the desert lakes, followed by a brief return to pluvial conditions, and concludes with a general warming and drying tre nd, with periodic reversals that continue to the present (Warren 1986).

ETHNOGRAPHY
The project area is situated near the intersection of the traditional tribal boundaries of the Cahuilla, Gabrielino, and Luiseño (Bean and Smith 1978; Kroeber 1925). According to Bean (1978), the Cahuilla probably occupied the project area at the time of Spanish contact.

Typically, the native culture groups in Southern California were named after nearby Sp anish period missions, and such is the case for these coastal Takic populations. For instance, the term “Gabrielino” is applied to the natives inhabiting the region around Mission San Gabriel, and “Luiseño” was given to those native people living within the “ecclesiastical jurisdiction of Mission San Luis Rey... [and who shared] an ance
stral relationship which is evident in their cosmogony, and oral tradition, common language, and reciprocal relationship in ceremonies” (Oxendine 1983). The Cahuilla are one exception to this naming convention, as their territory was distant enough from the missions for them to be only marginally affected and assimilated by the mission s in the last few years of the Spanish period.

The territory of the Cahuilla included most of Riverside County and portions of San Bernardino, San Diego, and Imperial Counties (Bean 1978). The territory of the Gabrielino included portions of Los PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices C ULTURAL R ESOURCES A SSESSMENT
U PDATED N OVEMBER 2017
H ARLEY D AVIDSON S TORAGE P ROJECT
R IVERSIDE , C ALIFORNIA

R:\ADK1601\ADK1601\report\For Steve\ADK1601 CT revised 11.3.17.docx (11/03/17) 5 Angeles, Orange, and San Bernardino Counties during ethnohistoric times, and also extended inland into northwestern Riverside County (Kroeber 1925; Heizer 1968). The territory of the Luiseño included portions of San Diego, Riverside, and Orange Counties (Kroeber 1925; Heizer 1978).

The Gabrielino, Cahuilla, and Luiseño were all hunters and gatherers; these Native American groups shared similar semi‐
sedentary lifestyles. They caught and collected seasonally available food resources, living in permanent communities along watercourses. Individuals from these villages took advantage of the varied resources available. Seasonally, as foods became available, native groups moved to temporary camps to collect plant foods and to conduct commu nal rabbit and deer hunts.

Unlike the landlocked Cahuilla, the territories of the Gabrielino and Luiseño included coastline, allowing them to establish seasonal camps along the coast and near bays and estuaries to gather shellfish and hunt waterfowl (Hudson 1971).

Gabrielino
The Gabrielino were hunters and gatherers who utilized food resources along the coast as well as inland areas of Los Angeles, Orange, San Bernardino and Riverside Counties during ethnographic times (Kroeber 1925; Heizer 1968).

The lifestyle of the Gabrielino was considered semi‐sedentary, living in permanent communities near inland watercourses and coastal estuaries. They caught and collected seasonally available food, and moved to temp
orary camps to collect plant resources such as acorns, buckwheat, berries, and fruit as well as conducting communal rabbit and deer hunts. Seasonal camps were also established along the coast and near estuaries where they would gather shellfish and hunt waterfowl (Hudson 1971).

Social
organization for the Gabrielino was focused on families living in small communities.

Patrilineally organized, extended families would occupy villages; both clans and villages would marry outside of the clan or village (Heizer 1968). The villages were administered by a chief whose position was patrilineal, passed from the father to the son. Spiritual and medic al activities were guided by a shaman; group hunting and fishing were supervised by individually appointed male leaders (Bean and Smith 1978).

Cahuilla
The other Native American tribe inhabiting the Santa Ana River area was the Cahuilla, whose traditional territory encompassed diverse topography ranging from the Salton Sink to the San Bernardino Mountains and San Gorgonio Pass (Bean 1978; Kroeber 1925). The Cahuilla were generally divided into three groups: Desert Cahuilla, Mountain Cahuilla, and Pass Cahuilla (Kroeber 1925). Like other Sout
hern California Native American tribes, the Cahuilla were semi‐nomadic peoples leaving their villages and using temporary camps near available plant and animal resources.

Cahuilla villages usually were in canyons or near adequate sources of water and food plants. The immediate village territory was owned in common by a lineage gro up or band. The other lands were divided into tracts owned by clans, families, or individuals. Trails used for hunting, trading, and social interaction connected the villages. Each village was near numerous sacred sites that included rock art panels (Bean and Shipek 1978).

R:\ADK1601\ADK1601\report\For Steve\ADK1601 CT revised 11.3.17.docx (11/03/17) 6 Social organization of the Cahuilla was patrilineal clans and kinships groups known as moieties.

Lineages within a clan cooperated in defense, subsistence activities, and religious ceremonies. Most lineages owned their own village sites and resource plots; although the majority of their territory was open to all Cahuilla people (Bean 1978).

Luiseño
Prior to Spanish occupation of California, the territory of the Luiseño extended along the coast from Agua Hedionda Creek to the south, Aliso Creek to the northwest, and the Elsinore Valley and Palomar Mountain to the east. These territorial boundaries were somewhat fluid and changed through time. They encompassed an extremely diverse environment that included coastal beaches, lagoons and marshes, inland river valleys and foothills, and mountain groves of oaks and evergreens (Bean 1978; Bean and Shipek 1978).

The Luiseño lived in small communities that were the focus of family life. Patrilineally linked, extended families occupied each village (Kroeber 1925; Bean and Shipek 1978). The Luiseño believed in the idea of private proper
ty. Property rights covered items and land owned by the village as well as items (houses, gardens, ritual equipment, trade beads, eagle nests, and songs) owned by individuals. Trespass against any property was punished (Bean and Shipek 1978). Luiseño villages were political
ly independent, and were administered by a chief, who inherited his position from his father.

Luiseño subsistence was based primarily on seeds such as acorns, grass seed, manzanita, sunflower, sage, chía, and pine nuts and game animals such as deer, rabbit, jackrabbit, wood rat, mice, antelope, and many types of birds (Bean and Shipek 1978). Se eds were dried and ground to be cooked into a mush. The Luiseño utilized fire for crop management and communal rabbit drives (Bean and Shipek 1978).

HISTORIC CONTEXT
In California, the historic era is generally divided into three periods: the Spanish Period (1769 to 1821), the Mexican Period (1821 to 1848), and the American Period (1848 to present). Early exploration of the Riverside County area began slowly until 1772 when Lieutenant Pedro Fages, then the military governor of San Diego, crossed through the San Ja cinto Valley.

Spanish Period
On January 8, 1774, the Juan Bautista de Anza expedition crossed the Colorado River and entered California. Bautista de Anza’s second excursion into Riverside County included 29 soldiers and their wives and children, who would form the new community at the Presidio of San Francisco (Beattie 1925).

With the Spanish intrusion of the late 18th century came a drastic change in lifestyle for the natives of Southern California. Incorporation of the indigenous populations into the mission system generally led to the disruption of native cultures and changes in subsistence and land use practices (Harley 1988).

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In 1821, Mexico overthrew Spanish rule, and the missions began to decline. By 1833, the Mexican government passed the Secularization Act, and the missions, reorganized as parish churches, lost their vast land holdings, and released their neophytes. In 1834, a prominent group of Californians, including the Lugos, the Vallejos, the Picos, and the Ortegas, coerce d Governor Figueroa into creating the “Provisional Regulations.” These regulations made mission lands available for their occupation (Beattie and Beattie 1939).

During the Mexican Period, the ranchos were predominantly devoted to cattle, with great tracts of land used for grazing. Until the Gold Rush of 1849, livestock and horticulture domi nated the economics of California (Ingersoll 1904; Beattie 1925; Beattie and Beattie 1951). Sixteen ranchos were granted in Riverside County; one of these was the Jurupa Rancho, granted in 1838 by then‐Governor Alvarado to Juan Bandini (Lech 2004). Another rancho, Sobrante de San Jacinto, was granted to Miguel de Pedrorena and Rosario Es
tudillo de Agüirre, comprising over one hundred thousand acres. The project area is on the southwestern corner of these former rancho lands.

American Period
The American Period, 1848–present, began with the signing of the Treaty of Guadalupe Hidalgo. In 1850, California was accepted into the United States primarily because of the population increase created by the Gold Rush of 1849. The discovery of gold in the northern portion of the state increased Anglo settlement of the region. Mexican land grants had creat ed large pastoral estates in California and the demand for beef during the Gold Rush led to a cattle boom that lasted from 1849–1855 (Jackson 1982). However, beginning around 1855, the demand for beef began to decline due to imports of sheep from New Mexico and cattle from the Mis sissippi and Missouri Valleys (Jackson 1982). When the beef market collapsed, many California ranchers lost their ranchos through foreclosure. A series of disastrous floods in 1861 and 1862, followed by two years of extreme drought, which continued to some extent until 1876, altered ranching forever in the area (Jackson 198
2).

As travel along the Santa Fe Trail during the early American Period brought more settlers, the pattern of settlement developed along the Santa Ana and San Jacinto waterways. The Southern Pacific Railroad completed its line from Los Angeles through Riverside and over the San Gorgonio Pass in 1876 making travel easier for people interested in moving west to new towns like Riv erside.

As the population grew, a movement to split from San Diego and San Bernardino Counties grew, eventually leading to the establishment of Riverside County in 1893. Since its formation, transportation, agriculture, and the control of water have contin ued to be central themes in the settlement, development, and growth of Riverside County (Robinson 1979).

Riverside
Originally part of the Jurupa Rancho, Riverside was founded in September 1870 by the Southern California Colony Association. The land was surveyed and platted with 10‐acre parcels to the north and south and a one‐square mile town site . The commercial core of the Mile Square began developing along Main Street in the center of town, while residential areas developed to the north, south, and east. In 1875 the Southern California Colony joined with the nearby New England and PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices C ULTURAL R ESOURCES A SSESSMENT
U PDATED N OVEMBER 2017
H ARLEY D AVIDSON S TORAGE P ROJECT
R IVERSIDE , C ALIFORNIA

R:\ADK1601\ADK1601\report\For Steve\ADK1601 CT revised 11.3.17.docx (11/03/17) 8 Santa Ana Colonies to form the Riverside Land and Irrigation Company, combining their land holdings (Patterson 1996). Riverside was predominantly an agricultural community, initially specializing in raisin grapes, alfalfa, hay, and stone fruits before these were supplanted by citrus production. The City of Riverside was incorporated in 1883 and at the time encompassed approximately 56
square miles (Gunther 1984). By 1893, when Riverside became the county seat, public transportation lines of one kind or another connected Riverside to most other communities in southern California, attracting settlers and tourists alike. Through the early part of the 20th century, Riverside remained a relatively small but prosperous city, with its population increasing significantly during the 1920s and the citrus industry dominating the local economy (Lech 2004).

Casa Blanca
This small settlement began in December of 1878, when the Lockwood family moved into its new white‐plastered adobe. They called it Casa Blanca, or “white house.” Th e Lockwoods landscaped their property extensively, which was so remarkable that the “Casa Blanca” name was given to the general area (Gunther 1984). In 1889, S.C. Evans filed a subdivision nearby, which he called “Map of the Village of Casa Blanca.” The subdivision provided a settlement where agricultural workers could own homes near their workplace (PCR 2
001). The village still exists today as a distinct Riverside neighborhood.

Upper Riverside Canal and the Atchison Topeka and Santa Fe Railroad The Upper Riverside Canal was built in 1870–1874; its head gates are located along the Santa Ana River, northwest of the original downtown. With the completion of a canal system and the beginnings of a railroad infrastructure, Riverside rapidly became an economic boomtown. The availability of water and the presence of the railroads were the key to development of viable agricultural economies in California (Wilkman 2011).

The first railroad to be built through the Riverside area was the Santa Fe, under charter of the Riverside, Santa Ana and Los Angeles Railway Company. Through service from San Bernardino to Los Angeles via this route began on August 12, 1888. As the tracks were laid in a southwesterly direction, stations and stops were added along the way. The Rivers ide, Santa Ana, Los Angeles Railroad took over the California Southern Railroad in Highgrove, which provided service into Arlington. Four stations were built to accommodate the citrus and agriculture industries within Riverside; these stations were the Riverside Station in downtown Riverside, the Pachappa Station at Arlington Avenue, the Casa Blanca Statio
n at Madison Street (in the project area), and the Arlington Station at Van Buren Boulevard (Gustafson and Serpico 1992).

The original Casa Blanca Station was built in 1890, but in 1897 was replaced by a larger single‐story combination depot along the north side of the railroad tracks that served the area until it wa s removed in 1966 (PCR 2001). Three palm trees adorned the station; these trees are present today.

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METHODS
RECORDS SEARCH
On November 15, 2016, LSA archaeologist Gini Austerman completed a records search at the Eastern Information Center (EIC), located at the University of California, Riverside. It included a review of all recorded historic and prehistoric archaeological sites within one mile of the project, as well as a review of known cultural resource survey and excavation reports. In addition, the California State Historic Property Data File (HPD), which includes the National Register of Historic Places (National Register), California Register of Historical Resources (California Register), California Historical Landmarks (CHL), California Points of Historical Interest (CPHI).

ADDITIONAL RESEARCH
Historic aerial photographs and topographic maps were reviewed for information relating to the historic use of the parcel. Research also included a review of reports on file at the City of Riverside Planning Department. Mr. Dean Ayers, archivist for the Riverside Public Utilities, was contacted on March 22, 2017, requesting information related to the valve cover observed in the project area. In addition, Mr. Steven Mai
ns of the Riverside Historical Society was contacted on March 27, 2017, regarding the history of the valve cover.

FIELD SURVEY
On November 16, 2016, Ms. Austerman completed a pedestrian survey of all accessible exposed areas of the project parcel. Portions of the property were surveyed in systematic parallel transects spaced by approximately 10 meters (approximately 30 feet), where possible. Special attention was given to areas of exposed soil for surface artifacts and features and to stratigra phy and rodent burrows for evidence of buried midden. The purpose of this survey was to identify and document— prior to the beginning of ground‐disturbing activities—any cultural resources and thus also to identify any area(s) that might be sensitive for buried cultural resources.

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RESULTS
RECORDS SEARCH
Resources
Data from the EIC noted 43 cultural resources within a one‐mile radius of the project; none of which are located within the project. The resources noted within the one‐mile radius of the project, outside of the project boundaries, are all from the historic‐period (pre‐1968) and include 21 residential properties, 15 commercial/public use properties, four water convey ance resources, one
citrus grove, Victoria Avenue, and the Parent Washington Navel Orange Tree. No prehistoric resources are documented within the one‐mile radius. The closest resources to the project are three commercial properties (33‐018046, 33‐01847, and 33‐01848), each is within approximately 100 feet on Evans Stree
t, on the south side of the railroad tracks. Also nearby is the Upper Riverside Canal (33‐004495), built in the late 19th century. The canal is located approximately 285 feet north of the project. Some segments of the canal have been modernized, removed, or abandoned. The segment of the Riverside Upper Canal near the project is no longer in use.

Table A lists the cultural resources and reports within a one‐mile radius of the project site that are mapped, documented on Department of Parks and Recreation forms, and on file at the EIC.

Table A: Cultural Resources within One Mile of the Project Primary # Site Description
33‐004495 Upper Riverside Canal
33‐004791 Lower Riverside Canal
33‐005820 Citrus groves and irrigation features; c. late 19th century 33‐009683 Parent Washington Navel Orange Tree, HPOI #20; corner of Magnolia/Arlington Avenues 33‐011634 4922 Arlington; 1937 residence
33‐011634 4948 Arlington; 1937 residence
33‐011880 3020 Madison Street; Casa Blanca School 1923 33‐011885 7155 Magnolia Avenue; Pliny Evans Home 1913
33‐012838 6869 Indiana Avenue; 1951 residence
33‐012839 6666 Indiana Avenue; 1927 residence
33‐012842 3280 Jane Street; 1953 residence
33‐012843 3285 Jane Street; 1952 residence
33‐013219 7265 Indiana Avenue; 1955 residence
33‐013220 7293 Indiana Avenue; 1926 residence
33‐013293 7275 Indiana Avenue; 1926 residence
33‐013294 7259 Indiana Avenue; 1946 residence
33‐011361 Victoria Avenue
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices C ULTURAL R ESOURCES A SSESSMENT
U PDATED N OVEMBER 2017
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R IVERSIDE , C ALIFORNIA

R:\ADK1601\ADK1601\report\For Steve\ADK1601 CT revised 11.3.17.docx (11/03/17) 11 Table A: Cultural Resources within One Mile of the Project Primary # Site Description
33‐014380 3410 Washington Street; 1907 residence
33‐014381 3422 Washington Street; 1907 residence
33‐017218 Gage Canal extension
33‐017250 7072 Indiana Avenue; 1927 residence
33‐017251 7060 Indiana Avenue; 1927 residence
33‐017262 3407 Washington Street; 1927 residence
33‐018046 7605 Evans Street; 1948 commercial building
33‐018047 7615 Evans Street; 1950s substation
33‐018048 7635 Evans Street; pre‐1948 structure/outbuilding 33‐018199 7166 Indiana Avenue; 1925 residence
33‐021020 Irrigation features; Washington/Francis area 33‐024721 3690 Adams Street; William Cooper House 1909 33‐026412 8525 and 8555 Diana Avenue; 1968 California Baptist University building 33‐026413 8432 Washington Street; California Baptist University 33‐026414 8436 Magnolia Avenue; California Baptist University 33‐026415 3502–80 Adams Street; California Baptist University 33‐026418 Diana Park Tract; 1962 residential development 33‐026421 8435 Magnolia Avenue; California Baptist University 33‐026422 3750 Adams Street; California Baptist University 33‐026423 8308 Magnolia Street; California Baptist University 33‐026424 8447, 8449, 8451, 8471 Diana Avenue; California Baptist University 33‐026425 8775 Magnolia Street; 1956 school
33‐026426 8431 Diana Avenue; Riverside Free Methodist Church 1963 33‐026427 3622 Adams Street; 1972 apartment building
33‐026428 3668 + 3720 Adams Street; 1961 California Baptist University 33‐026429 3780 Adams Street/8350 to 8398 Magnolia Avenue; University Place Apartments Reports
Data from the EIC indicate that there have been 20 previous cultural resource studies conducted in the records search area, none of which are within the project.

Additional Research
Historic aerial photographs and topographic maps ranging from 1901 through the present were reviewed. The 1948 and 1967 aerial photographs indicate that a structure was present along the PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices C ULTURAL R ESOURCES A SSESSMENT
U PDATED N OVEMBER 2017
H ARLEY D AVIDSON S TORAGE P ROJECT
R IVERSIDE , C ALIFORNIA

R:\ADK1601\ADK1601\report\For Steve\ADK1601 CT revised 11.3.17.docx (11/03/17) 12 north side of the railroad tracks with several ornamental palm trees adjacent to the structure; the structure was no longer present in the 1994 photograph. The structure is believed to have been the Casa Blanca Station, located adjacent to the railroad. Topographic maps indicate that, aside from the Casa Blanca Station, the project area has never been develope d (Nationwide Environmental Title Research 1948, 1967, 1994, 2005, 2009, and 2010).

The review of reports on file at the City of Riverside included a 2001 study conducted by PCR Services Corporation titled the Historic Survey, Inventory, and Evaluation of Casa Blanca & Eastside Communities. PCR describes the Casa
Blanca site as consisting of the concrete foundation, three Canary Island palm trees, and the “Casa Blanca” station stop sign. The report recommended the Casa Blanca Station site as eligible for the National Register under Criteria A and D for its association with important events in history and its potential to yi eld information important in history. PCR assigned the Casa Blanca Station site a California Historical Resources status code of 3S (Appears eligible for NR [National Register] as an individual property through survey evaluation).

Communication with Mr. Dean Ayers indicates that the valve‐cover noted in the project is an active hydrant valve cover likely installed with the wa
ter hydrant. Mr. Ayers stated that the valve cover is
generic and currently available at the local hardware store. Mr. Mains also asserted that the valve cover is generic and is readily available and was likely used to update the valve when the wa ter hydrant was installed. This hydrant feature is not related to the Casa Blanca Station, but rather a modern infrastructure feature that is still in use.

FIELD SURVEY
The field survey revealed fencing, a remnant concrete foundation, two wooden utility poles, a metal utility box, a water hydrant, a hydrant valve cover (Figure 2), and four palm trees within the project area (Figure 3). Aside from these features, the entire property is undeveloped, vacant, and cleared of vegetation. Ground surface visibility was excellent. Th e center of the project appears to have been capped with fill dirt and a thin layer of gravel. The valve cover exhibits the letters “CWD,” which stands for City Water Department. The date stamped on one of the utility poles is 2010; the other pole does not have a date stamp. The remnants of the concr ete foundation and the three associated palm trees were documented as LSA‐ADK‐H‐1 and are described below. The other palm tree is some distance from and unrelated to the foundations and was not documented. The Casa Blanca Station stop sign was not observed during th e field survey.

LSA‐ADK‐H‐1
The concrete foundation remnants were noted along the north side of the railroad tracks in a location consistent with the historic‐period Casa Blanca Station. The foundation measured approximately 36 feet long and 21 feet wide and is separated into three sections of by embedded wooden boards that run the width of the feature (Figure 4). Aside from the three palm tre es, which are consistent with the Canary Island palms noted in the 2001 PCR report, no additional artifacts were noted in association with the foundation. The feature was documented as an archaeological site on California Department of Parks and Recreation (DPR) Forms (see Appen dix A).

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Figure 2: Detail of Hydrant Valve Cover

Figure 3: Site Overview, facing west.

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Figure 4: Concrete Foundation, facing east.

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Based on the research and field results discussed above, the following sections present the historical significance evaluation for the remnant concrete foundation (LSA‐ADK‐H‐1) and the conclusion regarding whether it qualifies as a “historical resource” as defined by CEQA. Pursuant to City of Riverside requirements, although this is a CEQA project, the resource is also evaluated under the National Regist
er criteria.

DEFINITIONS
CEQA (PRC Chapter 2.6, Section 21083.2 and CCR Title 145, Chapter 3, Article 5, Section 15064.5) calls for the evaluation of resources to determine whether they qualify as “historical resources” as defined by CEQA. The criteria for determining the historical significance of resources are based on Section 15064.5 of the CEQA Guidelines and Guidelin es for the Nomination of Properties to the California Register. Properties eligible for listing in the California Register and subject to review under CEQA are those meeting the criteria for listing in the California Register, National Register, or designation under a local ordinance. Once a resource has been determined to be a “historical resource,” it must be determined whether there will be
impacts to the resource.

National Register of Historic Places
A cultural resource is evaluated for eligibility for listing in the National Register according to four criteria. These criteria generally require that the resource be 50 years of age or older and significant at the local, state, or national level according to one or more of the following:

A. It is associated with events that have made a significant contrib ution to the broad patterns of local or regional history;
B. It is associated with the lives of persons significant in our past; C. It embodies the distinctive characteristics of a type, period, region, or method of construction, or represents the work of an important creative i ndividual, or possesses high artistic values, or that represent a significant and distinguishable entity whose components lack individual distinction; and/or
D. It has yielded, or has the potential to yield, information important to the prehistory or history of the local area, California, or the nation.

Properties that are not 50 years of age or older must have “exceptional significa nce” in accordance with National Register Criteria Considerations. The National Register also requires that a resource possess integrity, which is defined as “the ability of a property to convey its significance.” The aspects of integrity are location, design, setting, materials, workmanship, feeling, and association.

To determine which of the
se factors are most important will depend on the particular National Register criterion under which the resource is considered eligible for listing.

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For a property to be eligible for inclusion in the California Register, one or more of the following criteria must be met:

1. It is associated with the events that have made a significant contribution to the broad patterns of local or regional history, or the cultural heritage of California or the United States;

2. It is associated with the lives of persons important to local, California, or national history;

3. It e
mbodies the distinctive characteristics of a type, period, region, or method or construction, or represents the work of a master, or possesses high artistic values; and/or

4. It has yielded, or has the potential to yield, information important to the prehis tory or history of the local area, California, or the nation.

In addition to meeting one or more of the above criteria, the California Register requires that sufficient time has passed since a resource’s period of significance to “obtain a scholarly perspective on the events or individuals associated with the resource.” Fifty ye ars is used as a general estimate
of time needed to develop the perspective to understand the resource’s significance (CCR 4852 [d][2]).

The California Register also requires that a resource possess integrity, which is defined as “the authenticity of an historical resource’s physical identity evidence d by the survival of characteristics that existed during the resource’s period of significance” (California Office of Historic Preservation 1999:2). To retain integrity, a resource should have its original location, design, setting, materials, workmanship, feeling, and association. Which of these factors is most important depends on the particular crit
erion under which the resource is considered eligible for listing (California Office of Historic Preservation 1999). There are seven aspects of integrity:
a) Location is the place where the historic property was constructed or the place where the historic event occurred.
b) Design is the combination of elements that create the form, plan, space, structure, and style of a property.
c) Setti
ng is the physical environment of a historic property.
d) Materials are the physical elements that were combined or deposited during a particular period of time and in a particular pattern or configuration to form a historic property. e) Workmanship is the physi
cal evidence of the crafts of a particular culture or people during any given period in history or prehistory.
f) Feeling is a property’s expression of the aesthetic or historic sense of a particular period of time. g) Association is the direct link between an important historic event or person and a historic property.

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The City of Riverside’s Cultural Resources Ordinance provides three categories of historical significance: Landmark, Structure or Resource of Merit, and Historic District. The criteria for these are outlined in the Riverside Municipal Code (RMC) 20.50.010. Since the remnant foundations (LSA‐ ADK‐H‐1) do not appear to be part of a potential historic district that d esignation is not discussed further. Consideration of the Landmark and Structure of Merit designations is appropriate for this resource. The primary difference between these categories is that Landmarks typically require a higher degree of integrity.

A Landmark is defined as “any improvement or natural feature that is an exceptional example of a historical, archaeological, cultural, architectural, community, aesthetic or artistic heritage of the city, retains a high degree of integrity, and meets one or more of the following criteria”:

1. Exemplifies or reflects special elements of the city’s cultural, social, economic, political, aesthetic, engineering, architectural, or natural history;

2. Is identified with persons or events significant in local, state, or nati onal history;

3. Embodies distinctive characteristics of a style, type, period, or method of construction, or is a valuable example of the use of indigenous materials or craftsmanship;

4. Represents the work of a notable builder, designer, or architect, or important creative individual;

5. Embodies elements that possess high artistic values or represents a signifi cant structural or
architectural achievement or innovation;

6. Reflects significant geographical patterns, including those associated with different eras of settlement and growth, particular transportation modes, or distinctive examples of park or community planning, or cultural landscap e;

7. Is one of the last remaining examples in the city, region, state, or nation possessing distinguishing characteristics of an architectural or historical type or specimen; or

8. Has yielded, or may be likely to yield, information important in history or prehistory.

A Structure or Resource of Merit is defined as “any i mprovement or natural feature which contributes to the broader understanding of the historical, archaeological, cultural, architectural, community, aesthetic, or artistic heritage of the city, retains sufficient integrity, and” meets one or more of the following criteria:

1. Has a unique location or singular physical characteristics or is a view or vista representing an established and familiar visual feature of a neighborhood community or of the city;

2. Is an ex
ample of a type of building which was once common but is now rare in its neighborhood, community, or area;

3. Is connected with a business or use which was once common but is now rare; PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices C ULTURAL R ESOURCES A SSESSMENT
U PDATED N OVEMBER 2017
H ARLEY D AVIDSON S TORAGE P ROJECT
R IVERSIDE , C ALIFORNIA

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4. A cultural resource that could be eligible under landmark criteria no longer exhibiting a high level of integrity, however, retaining sufficient integrity to convey significance under one or more of the landmark criteria;

5. Has yielded or may be likely to yield, information, important in history or prehistory; or

6. An improvement or resour
ce that no longer exhibits the high degree of integrity sufficient for Landmark designation, yet still retains sufficient integrity under one or more of the Landmark criteria to convey cultural resource significance as a Structure or Resource of Merit. (Ord. 7248 §5, 2014; Ord. 7206 §24, 2013; Ord. 7108 §1, 2010)

EVALUATION
Summary of History
Within the project area one historic‐period resource, consisting of remnant concrete foundations (LSA‐ADK‐H‐1) and three related palm trees, was documented. These remnant features were once part of the Casa Blanca Station, which was built between 1890 and 1897 and consisted of a single‐ story depot and related landscaping adjacent to the north side of the railroad tracks. Th e structure was removed in 1967, leaving the foundation which has degraded over time.

Significance Evaluation
As previously stated, the property is being evaluated for significance under the National Register criteria, California Register criteria, and the City’s criteria for local designation. Because the National Register and California Register criteria are so similar, they are addressed together.

National Register and California Register Criteria
Under Criteria A/1, the former Casa Blanca Station is one of four depots bui lt in Riverside that were associated with the agricultural‐related commercial, industrial, and residential boom of city and surrounding areas in the late 19th and early 20th centuries. However, as a remnant concrete slab, the resource has completely lost integrity of design, materials, workmanship, and feeling and its integrity of association has been significantly compromised. Although it is identifiable as a historic‐ period feature, it no longer conveys its historic use or purpose. Therefore, it is not significant under these criteria.

Under Criteria B/2,
no information was found to suggest that this property is associated with any person significant in local, state, or national history. Therefore, it is not significant under these criteria.

Under Criteria C/3, the structure has been removed; therefore, these criteria do not apply.

Under Criteria D/4, which typically relates to archaeological resources, th e remnant foundation does offer potential to yield information related to 20th century construction techniques. However, the Casa Blanca Station structure is one of many buildings constructed in the Riverside area at the turn of the century and offers no potential for information unique to railroad stations. Therefore, it is not significant under these criteria.

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The former Casa Blanca Station has been demolished and cannot be considered an exceptional example of historical, archaeological, cultural, architectural, community, aesthetic, or artistic heritage of the City. Therefore, it does not meet the minimum qualifications and no further discussion of the Landmark criteria is provided.

City of Riverside St
ructure of Merit Criteria
Under Structure of Merit Criterion 1, the property does not have a unique location or singular physical characteristics, nor is it a view or vista representing an established and familiar feature of a neighborhood, community, or of the City. The structure has been removed; therefore, it is not eligible under this criterion.

Under Structure of Merit Criterion 2, the property is not an example of a type of building that was once common but is now rare in its neighborhood, community, or area. As discussed previously, the structure has been demolished; therefore, it is not eligible under this criterion.

Structure of Merit Criterio
n 3 is for properties connected with a business or use which was once common but is now rare. The property was used for transportation purposes but, because it has been demolished, this criterion does not apply.

Structure of Merit Criterion 4 is for properties that reta in sufficient, but not necessarily high integrity, and that meet one or more of the Landmark criteria. The structure has been demolished; therefore, it is not eligible under this criterion.

Under Structure of Merit Criterion 5, which typically relates to archaeological resources, the remnant foundations were built using known techni ques and materials and do not have the potential to yield important information. Similarly, potential subsurface artifacts are likely to be relatively common items that would not add new information to the existing body of knowledge.

Therefore, it is not eligible under this criterion.

Structure of Merit Criterion 6 is essentially the same as Criterion 4 in that it is for properties that retain sufficient inte
grity to convey significance under one or more of the Landmark criteria. The structure has been demolished; therefore, it is not eligible under this criterion.

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CONCLUSION
Based on the above analysis, the historic‐period resource identified in the project area does not meet any of the criteria for listing in the National Register or California Register or for local designation. Due to the fact that the Casa Blanca Station has been demolished, the elements of design, setting, workmanship, materials, feeling, and association do not meet the integrity thresholds to qualify for listing in any register. Therefore, the remnant foundation (LSA‐ADK‐H‐1/ former Casa Blanca Station) does not qualify as “historical resource” as defined by CEQA.

FINDINGS AND RECOMMENDATIONS
This report has provided background information on the project area and outlined the research, field survey, methods, and results. Throughout the course of the study, no “historical resources,” as defined by CEQA, were encountered within the project area. However, as with most formerly well‐ traveled areas such as this, there is some potential for subsurface artifacts to be uncovered during earthmoving activities. Although these potential artifacts are not anticipated to be historically significant, it is prudent to recommend limited archaeological monitoring by a qualified archaeologist for initial ground disturbing activities. This includes grubbing, tree removal, grading and trenching within 100 feet of the foundation remnants (LSA‐ ADK‐H‐1/Casa Blanca Station). In the event any archaeological resources are identified during earthmoving activities, work in the area should be halted until the nature and significance of the find can be assessed by a qualified archaeologist.

In the event human remains are encountered, State Health and Safet y Code Section 7050.5 states that no further disturbance shall occur until the County Coroner has made a determination of origin and disposition pursuant to PRC Section 5097.98. The County Coroner must be notified of the find immediately. If the remains are determined to be prehistoric, the Coroner will notify the Native American Heritage Commission (NAHC
), which will determine and notify a Most Likely Descendant (MLD). With the permission of the landowner or his/her authorized representative, the MLD may inspect the site of the discovery. The MLD shall complete the inspection within 48 hours of notification by the NAHC. The MLD may recommend scientifi c removal and nondestructive analysis of human remains and items associated with Native American burials.

The City of Riverside has requested the following be included in this report: Additional mitigation measures may be implemented/required as part of the AB 52/SB 18 Consultation process.

Mitigation measures will be included in the Mitigatio n Monitoring and Reporting Program of the Mitigated Negative Declaration. Furthermore, although the property appears ineligible for designation on any level, the former Casa Blanca Station site might be recognized as a City of Riverside Point of Cultural Interest under Title 20 and the palm trees related to it (immediately south of the project site) be incorporated/remain to mark the site. Th e project, as proposed, will not
remove the trees.

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REFERENCES
Beck, Warren A., and Ynez D. Haase
1974 Historical Atlas of California. Norman, Oklahoma: University of Oklahoma Press.

Bean, Lowell John
1977 Morongo Indian Reservation: A Century of Adaptive Strategies. In American Indian Economic Development. Sam Stanley, ed. The Hague: Mouton. In Press. 1978 Cahuilla. In California, edited by R.F. Heizer, pp. 575–587. Hand book of North American Indians, vol. 8, W.C. Sturtevant, general editor, Smithsonian Institution, Washington, D.C.

Bean, Lowell John, and Charles R. Smith
1978 Gabrielino. In California, edited by R.F. Heizer, pp. 538–549. Handbook of North American Indians, vol. 8, W.C. Sturtevant, general editor, Smithsonian Institution, Washington, D.C.

Bean, Lowell John, and Florence C. Sh
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7. Beattie, George W., and Helen P. Beattie
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Gunther, Jane D.
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Gustafson, Lee, and Phil Serpico
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Harley, R. Bruce
1988 Rev. Juan Caballeria: Hi
storian or Storyteller? Rethinking the 1810 Dumetz Expedition. San Bernardino County Museum Quarterly 35(2), 42 p.

Heizer, Robert F.
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1971 Proto‐Gabrielino Patterns of Territorial Organization in Southern Coastal California. Pacific Coast Archaeological Society Quarterly 7(2):49–76.

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of the Indians of California. Bureau of American Ethnology Bulletin No. 78.

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Lech, Steve
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Moratto, Michael
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1948 Aerial Photograph (T4S, R4W, Section 9, San Bernardino Base Meridian). Photograph available at www.historicaerials.com. Website accessed September 5, 2016. 1966 Aerial Photograph (T4S, R4W, Section 9, San Bernardino Base Meridian). Photograph available at www.historicaerials.com. Website access ed September 5, 2016. 1994 Aerial Photograph (T4S, R4W, Section 9, San Bernardino Base Meridian). Photograph available at www.historicaerials.com. Website accessed September 5, 2016. 2005 Aerial Photograph (T4S, R4W, Section 9, San Bernardino Base Meridian). Photograph available at www.historicaerials.com. Website accessed September 5, 2016. 2009 Aerial Photograph (T4S, R4W, Section 9, San Bernardino Base Meridian). Photograph available at www.historicaerials.com. Website accessed September 5, 2016. 2010 Aerial Photograph (T4S, R4W, Section 9, San Bernardino Base Meridian). Photograph available at www.historicaerials.com. Website accessed September 5, 2016.

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Warren, Claude N.
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Fredrickson, C. Raven, and C. N. Warren, pp. 339–430. Academic Press, Orlando, Florida. 1986 Fort Irwin Historic Preservation Plan, Volume 2: The Research Overview. Coyote Press, Salinas, California. Copies also available from National Park Service‐Western Region, San Francisco, and National Te
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Warren, Claude N., and Robert H. Crabtree
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CALIFORNIA DEPARTMENT OF PARKS AND RECREATION (DPR) FORMS PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices DPR 523A (1/95) *Required information
State of California  The Resources Agency Primary #
DEPARTMENT OF PARKS AND RECREATION HRI #
PRIMARY RECORD Trinomial
NRHP Status Code 6 Z
Other Listings
Review Code Reviewer Date

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Riverside City CouncilSeptember 5, 2023

Riverside City Council
September 5, 2023