Riverside City Council
February 24, 2026

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List of Tables

Table 1. Short-Term Noise Measurement Summary (dBA)....................................................................................... 9 Table 2. Long-Term Noise Measurement Summary (LTNM1) (dBA) .................................................................. 10 Table 3. Ground-Borne Vibration (GBV) Impact Criteria for General Vibration Assessment ....................... 14 Table 4. Construction Vibration Damage Criteria .................................................................................................... 15 Table 5. Noise/Land Use Noise Compatibility Criteria ........................................................................................... 18 Table 6. Exterior Sound Level Limits ............................................................................................................................ 20 Table 7. Interior Sound Level Limits ............................................................................................................................. 22 Table 8. CA/T Equipment Noise Emissions and Acoustical Usage Factor Database ...................................... 26 Table 9. Project Average Daily Traffic Volumes and Roadway Parameters ...................................................... 28 Table 10. Construction Equipment Vibration Source Levels ................................................................................... 29 Table 11. Construction Noise Levels .............................................................................................................................. 36 Table 12. Increase in Existing Noise Levels Due to Project Generated Vehicle Traffic ................................... 37 Table 13. Construction Vibration Levels at the Nearest Sensitive Receptors ..................................................... 38

List of Figures

Figure 1. Project Location Map .......................................................................................................................................... 2 Figure 2. Site Plan .................................................................................................................................................................. 3 Figure 3. A-Weighted Comparative Sound Levels ........................................................................................................ 6 Figure 4. Typical Levels of Groundborne Vibration ...................................................................................................... 7 Figure 5. Noise Measurement Location Map .............................................................................................................. 11 Figure 6. Operational Noise Levels (dBA Leq) ............................................................................................................ 39 Figure 7. Operational Noise Level Contours (dBA Leq) ........................................................................................... 40 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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EXECUTIVE SUMMARY

This noise impact analysis report analyzes the potential noise and vibration impacts of the proposed project of Richardson’s RV to (1) establish an outdoor storage yard for the temporary staging and storage of Recreational Vehicles (“RVs”) on a one-acre property located at 10030 Indiana Avenue in the City of Riverside, California (“Project Site”), and (2) to convert an existing 1,351 square foot residence at the Project Site into an office (collectively, the “Project”). On November 30, 2022, the Development Review Committee (“DRC”) approved an application from Steve Richardson of Richardson’s RV for a Minor Conditional Use Permit and Design Review for the Project. The Project entails:

 Paving approximately 33,763 square feet of the lot for the purpose of storing RVs;  Striping forty-five 9 x 35-foot stalls for storage of RVs;  Conversion of the existing 1,351 square foot residence on the Project Site into an office for Richardson’s RV (The building conversion involves minimal interior remodeling only. There is no expansion of the building outside of the existing footprint.);  Construction of fences and walls; and
 Landscaping.

The Project will operate Monday through Friday from 8:00 AM to 5:00 PM with four employees on-site. No sales of RVs, maintenance, washing or fueling are proposed to take place on-site.

The Project will not result in any significant construction or operational impacts relating to noise or vibration under the California Environmental Quality Act (CEQA), and the Project will not exceed the applicable noise standards set forth in the City’s Municipal Code. Notably, project construction will not take place between the hours of 7:00 PM and 7:00 AM on weekdays, between the hours of 5:00 PM and 8:00 AM on Saturdays, or at any time on Sunday or a federal holiday; the Project’s construction is thus exempt from the provisions of Title 7 of the City’s Municipal Code, which governs noise control (see Riverside Municipal Code, §

7.35.020). Moreover, the Project will have limited operational noise, which would be less than the exterior noise standard of 55 dBA for residential land uses between 7:00 AM to 10:00 PM and less than the exterior noise standard of 65 dBA for office/commercial land uses (see Riverside Municipal Code, Table 7.25.010A).

In short, the Project will have less than significant impacts relating to noise and vibration.

PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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1. INTRODUCTION

This section describes the purpose of this study and the proposed project.

PURPOSE AND OBJECTIVES

The purpose of this report is to provide an assessment of the noise impacts that could potentially result from development and operation of the proposed project. The noise issues related to the proposed land use and development have been evaluated in light of applicable federal, state and local policies, including those of the City of Riverside, in the context of the California Environmental Quality Act (CEQA).

Although this is a technical report, effort has been made to write the report clearly and concisely. A list of acronyms and glossary are provided in Appendix A and Appendix B of this report to assist the reader with technical terms related to noise and vibration analysis.

PROJECT LOCATION

The 1.0-acre project site is located at 10030 Indiana Avenue, in the City of Riverside, California. The proposed project is currently developed with an existing 1,351 square foot residence. A vicinity map showing the project location is provided in Figure 1.

PROJECT DESCRIPTION

The project consists of a Minor Conditional Use Permit and a Design Review for an Outdoor Storage Yard and the conversion of an existing 1,351 square foot residence into an office for Richardson’s RV storage. The development consists of:

 Paving approximately 33,763 square feet of the lot for outdoor storage purposes;  Striping forty-five 9 x 35-foot stalls for storage of vehicles;  Conversion of the existing residence into an office (The building conversion involves minimal interior remodeling only. There is no expansion of the building outside of the existing footprint.);  Construction of fences and walls; and
 Landscaping

The project will operate Monday through Friday from 8:00 AM to 5:00 PM with four employees on-site.

Recreational vehicles and trailers will be transported to and from the storage yard as required for inventory control. Plans indicate the storage yard will be secured and screened as follows:

 A new 6-foot-high opaque tubular steel fence and opaque rolling gate on the north side of the storage yard;
 A combination of an existing 5-foot-high decorative stucco perimeter wall and new 10-foot-high decorative opaque metal fence along the east side property line;  A combination of an existing 6-foot-high CMU wall and new landscaping along the south property line, adjacent to the AT&SF Railroad; and
 An existing self-storage building along the west side property line.

No sales of recreational vehicles, maintenance, washing or fueling are proposed to take place on-site. Figure 2 illustrates the project site plan.

1 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Figure 1
Project Location Map
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N
91 Site
INDIA
NA AVE
TYLER
ST

HARRISON
ST
2 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Figure 2
Site Plan
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N
3 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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2. NOISE AND VIBRATION FUNDAMENTALS

This section provides an overview of key noise and vibration concepts.

NOISE FUNDAMENTALS

Sound is a pressure wave created by a moving or vibrating source that travels through an elastic medium such as air. Noise is defined as unwanted or objectionable sound. The effects of noise on people can include general annoyance, interference with speech communication, sleep disturbance, and in extreme circumstances, hearing impairment.

Commonly used noise terms are presented in Appendix B. The unit of measurement used to describe a noise level is the decibel (dB). The human ear is not equally sensitive to all frequencies within the sound spectrum.

Therefore, the “A-weighted” noise scale, which weights the frequencies to which humans are sensitive, is used for measurements. Noise levels using A-weighted measurements are written dB(A) or dBA.

From the noise source to the receiver, noise changes both in level and frequency spectrum. The most obvious is the decrease in noise as the distance from the source increases. The manner in which noise reduces with distance depends on whether the source is a point or line source as well as ground absorption, atmospheric effects and refraction, and shielding by natural and manmade features. Sound from point sources, such as air conditioning condensers, radiates uniformly outward as it travels away from the source in a spherical pattern.

The noise drop-off rate associated with this geometric spreading is 6 dBA per each doubling of the distance (dBA/DD). Transportation noise sources such as roadways are typically analyzed as line sources, since at any given moment the receiver may be impacted by noise from multiple vehicles at various locations along the roadway. Because of the geometry of a line source, the noise drop-off rate associated with the geometric spreading of a line source is 3 dBA/DD.

Decibels are measured on a logarithmic scale, which quantifies sound intensity in a manner similar to the Richter scale used for earthquake magnitudes. Thus, a doubling of the energy of a noise source, such as a doubled traffic volume, would increase the noise levels by 3 dBA; halving of the energy would result in a 3 dBA decrease. Figure 3 shows the relationship of various noise levels to commonly experienced noise events.

Average noise levels over a period of minutes or hours are usually expressed as dBA L eq, or the equivalent noise level for that period of time. For example, Leq(3-hr) would represent a 3-hour average. When no period is specified, a one-hour average is assumed.

Noise standards for land use compatibility are stated in terms of the Community Noise Equivalent Level (CNEL) and the Day-Night Average Noise Level (DNL). CNEL is a 24-hour weighted average measure of community noise. CNEL is obtained by adding five decibels to sound levels in the evening (7:00 PM to 10:00 PM), and by adding ten decibels to sound levels at night (10:00 PM to 7:00 AM). This weighting accounts for the increased human sensitivity to noise during the evening and nighttime hours. DNL is a very similar 24- hour average measure that weights only the nighttime hours.

It is widely accepted that the average healthy ear can barely perceive changes of 3 dBA; that a change of 5 dBA is readily perceptible, and that an increase (decrease) of 10 dBA sounds twice (half) as loud. This definition is recommended by the California Department of Transportation’s Technical Noise Supplement to the Traffic Noise Analysis Protocol (2013).

VIBRATION FUNDAMENTALS

The way in which vibration is transmitted through the earth is called propagation. Propagation of earthborn vibrations is complicated and difficult to predict because of the endless variations in the soil through which waves travel. There are three main types of vibration propagation: surface, compression and shear waves. 4 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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Surface waves, or Rayleigh waves, travel along the ground’s surface. These waves carry most of their energy along an expanding circular wave front, similar to ripples produced by throwing a rock into a pool of water.

Compression waves, or P-waves, are body waves that carry their energy along an expanding spherical wave front. The particle motion in these waves is longitudinal (i.e., in a “push-pull” fashion). P-waves are analogous to airborne sound waves. Shear waves, or S-waves, are also body waves that carry energy along an expanding spherical wave front. However, unlike P-waves, the particle motion is transverse or “side-to-side and perpendicular to the direction of propagation”.

As vibration waves propagate from a source, the energy is spread over an ever-increasing area such that the energy level striking a given point is reduced with the distance from the energy source. This geometric spreading loss is inversely proportional to the square of the distance. Wave energy is also reduced with distance as a result of material damping in the form of internal friction, soil layering, and void spaces. The amount of attenuation provided by material damping varies with soil type and condition as well as the frequency of the wave.

Vibration amplitudes are usually expressed as either peak particle velocity (PPV) or the root mean square (RMS) velocity. The PPV is defined as the maximum instantaneous peak of the vibration signal in inches per second. The RMS of a signal is the average of the squared amplitude of the signal in vibration decibels (VdB), ref one micro-inch per second. The Federal Railroad Administration uses the abbreviation “VdB” for vibration decibels to reduce the potential for confusion with sound decibel.

PPV is appropriate for evaluating the potential of building damage and VdB is commonly used to evaluate human response. Decibel notation acts to compress the range of numbers required in measuring vibration.

Similar to the noise descriptors, L eq and Lmax can be used to describe the average vibration and the maximum vibration level observed during a single vibration measurement interval. Figure 4 illustrates common vibration sources and the human and structural responses to ground-borne vibration. As shown in the figure, the threshold of perception for human response is approximately 65 VdB; however, human response to vibration is not usually substantial unless the vibration exceeds 70 VdB. Vibration tolerance limits for sensitive instruments such as magnetic resonance imaging (MRI) or electron microscopes could be much lower than the human vibration perception threshold.
5 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Figure 3
A-Weighted Comparative Sound Levels
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© Ganddini Group, Inc.

Based on Policy & Guidance from Federal Aviation Administration 6 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Figure 4
Typical Levels of Groundborne Vibration
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Source: FRA, 2012. Federal Railroad Administration High-Speed G round Transportation Noise and Vibration Impact Assessment. Office of Railroad Policy Development, Washington, D.C. DOT/FRA/ORD-12/15. September. 7 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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3. EXISTING NOISE ENVIRONMENT

This section describes the existing noise setting in the project vicinity.

EXISTING LAND USES AND SENSITIVE RECEPTORS

The project site is bordered by Indiana Avenue to the north, a commercial self-storage use to the west, railroad tracks to the south, and commercial uses to the east of the project site.

The State of California defines sensitive receptors as those land uses that require serenity or are otherwise adversely affected by noise events or conditions. Schools, libraries, churches, hospitals, single and multiple- family residential, including transient lodging, motels and hotel uses make up the majority of these areas.

Existing sensitive land uses in the vicinity of the project site include the existing single-family residential land uses located approximately 145 feet south (along Rhinelander Drive) and 465 feet northwest (along the northern side of Diana Avenue) of the project site boundaries.

AMBIENT NOISE MEASUREMENTS

An American National Standards Institute (ANSI Section SI.4 2014, Class 1) Larson Davis model LxT sound level meter was used to document existing ambient noise levels. In order to document existing ambient noise levels in the project area, three (3) 15-minute daytime noise measurements were taken between 1:29 PM and 3:06 PM on September 23, 2024. In addition, one (1) long-term 24-hour noise measurement was also taken from September 23, 2024, to September 24, 2024. Figure 5 shows the noise measurement location map.

Field worksheets and noise measurement worksheets are provided in Appendix C.

As shown on Figure 5, the noise meter was placed at the following locations:

 STNM1: represents the existing noise environment of the northern portion of the project site and the commercial uses to the north of the project along the northern side of Indiana Avenue (10031 Indiana Avenue, Riverside). The noise meter was placed near the northern property line of the project site just south of Indiana Avenue.

 STNM2: represents the existing noise environment of the commercial uses to the east of the project site (10020 Indiana Avenue, Riverside). The noise meter was placed near the center of the eastern project property line just west of the commercial use.

 STNM3: represents the existing noise environment of the single-family residential uses located to the south of the project site along Rhinelander Drive (10047 Rhinelander Drive, Riverside). The noise meter was placed just south of the residential use and north of Rhinelander Drive.

 LTNM1: represents the existing noise environment of the southern portion of the project site and the single-family residential uses located to the south of the project site along Rhinelander Drive (10047 Rhinelander Drive, Riverside). The noise meter was placed near the southern property line of the project site.

Table 1 provides a summary of the short-term ambient noise data. Table 2 provides hourly interval ambient noise data from the long-term noise measurement. Measured short-term ambient noise levels ranged between

53.8 and 69 dBA L eq. Long-term hourly noise measurement ambient noise levels ranged from 56.7 to 77.3 dBA Leq. The dominant noise source in the project vicinity was vehicle traffic associated with Indiana Avenue, 91 Freeway, and Rhineland Drive and train activity.

8 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Site Location Time Started Leq Lmax Lmin L(2) L(8) L(25) L(50) STNM1 1:29 PM 69.0 83.4 60.0 76.2 72.8 69.1 65.4
STNM2 2:00 PM 58.8 69.7 52.3 65.0 62.8 58.8 56.3
STNM3 2:51 PM 53.8 68.4 46.7 64.2 55.2 50.9 49.8
(1) See Figure 5 for noise measurement locations. Each noise measurement was performed over a 15-minute duration. (2) Noise measurements performed on September 23, 2024.

Notes:

Table 1
Short-Term Noise Measurement Summary (dBA)
Daytime Measurements1,2
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9 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Leq Lmax Lmin L(2) L(8) L(25) L(50)
6:00 PM 73.4 101.4 42.7 84.4 69.3 57.1 55.2
6:00 PM 74.3 97.4 53.8 86.2 68.8 58.2 56.9
7:00 PM 74.8 94.9 51.3 86.0 78.7 57.2 55.9
8:00 PM 71.9 95.5 50.2 84.0 59.0 54.8 53.7
9:00 PM 72.9 90.3 52.8 84.0 78.0 62.1 59.0
10:00 PM 75.4 95.6 51.1 87.4 69.2 56.9 55.7
11:00 PM 71.3 92.9 50.4 83.9 58.5 56.4 55.4
12:00 AM 70.0 90.1 49.4 81.4 71.1 57.9 55.2
1:00 AM 75.1 95.2 42.7 84.9 80.6 70.8 53.5
2:00 AM 75.2 98.9 43.4 85.2 66.0 52.2 50.3
3:00 AM 75.6 98.4 46.5 85.6 80.9 55.6 54.1
4:00 AM 73.3 101.4 50.8 83.2 57.2 55.6 54.7
5:00 AM 68.3 94.1 48.4 80.0 56.1 54.3 53.1
6:00 AM 74.2 100.3 52.9 85.3 58.9 56.1 55.3
7:00 AM 59.0 84.1 47.1 60.2 56.2 54.2 51.5
8:00 AM 76.8 101.0 48.1 86.4 80.6 53.6 51.9
9:00 AM 73.1 95.4 50.6 84.1 76.1 58.7 56.5
10:00 AM 72.2 97.2 50.7 83.9 57.3 55.4 54.6
11:00 AM 72.7 99.7 51.9 83.5 59.7 56.5 55.4
12:00 PM 56.7 68.9 51.5 60.0 58.8 57.3 56.1
1:00 PM 74.0 97.8 51.0 84.2 74.0 56.8 55.6
2:00 PM 68.2 85.5 50.7 80.6 61.7 57.6 56.2
3:00 PM 74.1 98.1 52.5 83.2 73.8 57.7 56.3
4:00 PM 77.3 96.3 47.5 87.1 84.1 57.5 54.1
5:00 PM 68.8 92.3 53.3 78.2 64.5 58.1 57.1
(1)
(2)
Notes:

See Figure 5 for noise measurement locations. Noise measurement was performed over a 24-hour duration.

Noise measurement performed from September 23, 2024 to September 24, 2024. 19 20
21 22
23 CNEL
24 80.3
18 7
8 9
10 11
12 13
14 15
16 17
6 Table 2
Long-Term Noise Measurement Summary (LTNM1) (dBA)
24-Hour Ambient Noise1,2
Hourly
Measurements Time Started
Overall Summary
1 2
3 4
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10 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Figure 5
Noise Measurement Location Map
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N
91 Site
INDIA
NA AVE
TYLER
ST

HARRISON
ST
Noise Measurement Location
Legend
NM 1
Short-Term Noise MeasurementST NM
Long-Term Noise MeasurementLT NM
ST NM 1
ST NM 2
LT NM 1
ST NM 3
11 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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4. REGULATORY SETTING

This section documents the regulatory framework and applicable noise standards.

FEDERAL REGULATION

Federal Noise Control Act of 1972

The U.S. Environmental Protection Agency (EPA) Office of Noise Abatement and Control was originally established to coordinate federal noise control activities. After its inception, EPA’s Office of Noise Abatement and Control issued the Federal Noise Control Act of 1972, establishing programs and guidelines to identify and address the effects of noise on public health, welfare, and the environment. In response, the EPA published Information on Levels of Environmental Noise Requisite to Protect Public Health and Welfare with an Adequate Margin of Safety (Levels of Environmental Noise). The Levels of Environmental Noise recommended that the Ldn should not exceed 55 dBA outdoors or 45 dBA indoors to prevent significant activity interference and annoyance in noise-sensitive areas.

In 1981, EPA administrators determined that subjective issues such as noise would be better addressed at lower levels of government. Consequently, in 1982 responsibilities for regulating noise control policies were transferred to State and local governments. However, noise control guidelines and regulations contained in EPA rulings in prior years remain in place by designated Federal agencies, allowing more individualized control for specific issues by designated Federal, State, and local government agencies.

Federal Transit Administration

Transit and Construction Noise

FTA standards and criteria for assessing noise impacts related to transit projects are based on community reactions to noise. The criteria reflect changes in noise exposure using a sliding scale where the higher the level of existing noise, the smaller increase in total noise exposure is allowed. Some land use activities are more sensitive to noise than others, such as parks, churches and residences, as compared to industrial and commercial uses. FTA Noise Impact Criteria groups sensitive land uses into the three categories described below.

(1) Category 1 – High Sensitivity: Land where quiet is an essential element of its intended purpose. Example land uses include preserved land for serenity and quiet, outdoor amphitheaters and concert pavilions, and national historic landmarks with considerable outdoor use. Recording studios and concert halls are also included in this category.
(2) Category 2 – Residential: This category is applicable to all residential land use and buildings where people normally sleep, such as hotels and hospitals.
(3) Category 3 – Institutional: This category is applicable to institutional land uses with primarily daytime and evening use. Example land uses include schools, libraries, theaters, and churches where it is important to avoid interference with such activities as speech, meditation, and concentration on reading material.

Places for meditation or study associated with cemeteries, monuments, museums, campgrounds, and recreational facilities are also included in this category.

Most commercial or industrial uses are not considered noise-sensitive because activities within these buildings are generally compatible with higher noise levels. Business can be considered noise-sensitive if low noise levels are an important part of operations, such as sound and motion picture recording studios. Most parks used primarily for active recreation such as sports complexes and bike or running paths are not considered noise sensitive. However, some parks (even some in dense urban areas) are primarily used for passive recreation such as reading, conversation, or meditation. These places, which may be valued as havens from 12 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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the noise and rapid pace of everyday city life, are treated as noise-sensitive, and are included in land use Category 3. Non-sensitive uses do not require noise impact assessment.

Construction noise is assessed using guidance provided in the FTA Guidance Manual. The FTA provides reasonable criteria for assessing construction noise impacts based on the potential for adverse community reaction. For residential uses, the daytime noise threshold is 80 dBA L eq averaged over an 8-hour period (L eq (8-hr); and the nighttime noise threshold is 70 dBA L eq (8-hr). For commercial uses, the daytime and nighttime noise threshold is 85 dBA Leq (8-hr) and for industrial uses the daytime and nighttime noise threshold is 90 dBA Leq (8-hr).

Transit and Construction Vibration

FTA has developed impact criteria for acceptable levels of groundborne noise (GBN) and groundborne vibration (GBV). Criteria for ground-borne vibration are expressed in terms of rms velocity levels in VdB, and criteria for ground-borne noise are expressed in terms of A-weighted sound pressure levels in dBA. Table 3 shows that 80 VdB is the threshold for annoyance from groundborne vibration at sensitive receptors for infrequent events. The FTA also provides criteria for special buildings such as concert halls, television and recording studios, auditoriums, and theaters, which are also sensitive to vibration but do not fit into the three FTA sensitive land use categories previously described.

Ground-borne noise that accompanies the building vibration is usually perceptible only inside buildings and typically is only an issue at locations with subway or tunnel operations where there is no airborne noise path or for buildings with substantial sound insulation such as a recording studio. 1 As such, available guidelines from the FTA are utilized to assess impacts due to ground-borne vibration. The FTA has adopted vibration standards that are used to evaluate potential building damage impacts related to construction activities. As shown in Table 4, the threshold at which there is a risk to “architectural” damage to non-engineered timber and masonry buildings is a peak particle velocity (PPV) of 0.2, at engineered concrete and masonry buildings a PPV of 0.3, and at reinforced-concrete, steel, or timber buildings a PPV of 0.5.

1 Federal Transit Administration, Transit Noise and Vibration Impact Assessment, May 2018, pp 108, 112. 13 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Frequent
Events1
Occasional
Events2
Infrequent
Events3
Frequent
Events1
Occasional
Events2
Infrequent
Events3
Category 1: Buildings where vibration would
interfere with interior operations. 65 VdB* 65 VdB* 65 VdB* N/A N/A N/A Category 2: Residences and buildings where people
normally sleep. 72 VdB 75 VdB 80 VdB 35 38 43
Category 3: Institutional land uses with primarily
daytime use. 75 VdB 78 VdB 83 VdB 40 43 48
Table 3
Ground-Borne Vibration (GBV) Impact Criteria for General Vibration Assessment GBN Impact Levels (dBA, 20 micro Pascals)
*This criterion limit is based on levels that are acceptable for most moderately sensitive equipment such as optical microscopes. For equipment that is more sensitive, a Detailed Vibration Analysis must be performed.

1. “Frequent Events” is defined as more than 70 vibration events of the same source per day. Most rapid transit projects fall into this category.

Source: Federal Transit Administration (FTA), Transit Noise and Vibration Impact Assessment Manual (September 2018).

2. "Occasional Events” is defined as between 30 and 70 vibration events of the same source per day. Most commuter trunk lines have this many operation.

3. “Infrequent Events” is defined as fewer than 30 vibration events of the same kind per day. This category includes commuter rail branch lines.

Land Use Category
GBV Impact Levels (VdB re 1 micro-inch/sec)
Notes:

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14 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Building/Structural Category PPV, in/sec Approximate Lv* I. Reinforced-concrete, steel or timber (no plaster) 0.5 102 II. Engineered concrete and masonry (no plaster) 0.3 98 III. Non-engineered timber and masonry buildings 0.2 94 IV. Buildings extemely susceptible to vibration damage 0.1 90 Table 4
Construction Vibration Damage Criteria
Notes:

Source: Federal Transit Administration (FTA), Transit Noise and Vibration Impact Assessment Manual (September 2018). *RMS velocity in decibels, VdB re 1 micro-in/sec
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15 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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STATE REGULATIONS

State of California General Plan Guidelines 2017

Though not adopted by law, the State of California General Plan Guidelines 2017, published by the California Governor’s Office of Planning and Research (OPR) (OPR Guidelines), provides guidance for the compatibility of projects within areas of specific noise exposure. The OPR Guidelines identify the suitability of various types of construction relative to a range of outdoor noise levels and provide each local community some flexibility in setting local noise standards that allow for the variability in community preferences. Findings presented in the Levels of Environmental Noise Document (EPA 1974) influenced the recommendations of the OPR Guidelines, most importantly in the choice of noise exposure metrics (i.e., Ldn or CNEL) and in the upper limits for the normally acceptable outdoor exposure of noise-sensitive uses.

The OPR Guidelines include a Noise and Land Use Compatibility Matrix which identifies acceptable and unacceptable community noise exposure limits for various land use categories. Where the “normally acceptable” range is used, it is defined as the highest noise level that should be considered for the construction of buildings which do not incorporate any special acoustical treatment or noise mitigation. The “conditionally acceptable” or “normally unacceptable” ranges include conditions calling for detailed acoustical study prior to the construction or operation of the proposed project.

LOCAL REGULATIONS

City of Riverside General Plan

Table 5 shows the City’s noise level standards related to land use compatibility. This matrix does not provide noise/land use compatibility criteria for multiple family residential land uses. For the purposes of this analysis, the noise/land use compatibility criteria for infill single family residential land uses has been used. As shown in Table 5, commercial uses are considered “normally acceptable” where noise levels are not expected to exceed 65 dBA CNEL and “conditionally acceptable” up to 75 dBA CNEL. These standards apply to the proposed project itself. In addition, single-family residential uses are considered “normally acceptable” where noise levels are not expected to exceed 60 dBA CNEL and “conditionally acceptable” up to 65 dBA CNEL.

The City of Riverside General Plan also includes the following objectives and policies in regard to noise which apply to the proposed project.

Objective N-1 Minimize noise levels from point sources throughout the community and, wherever possible, mitigate the effects of noise to provide a safe and healthful environment.

Policies
N-1.1 Continue to enforce noise abatement and control measures particularly within residential neighborhoods.

N-1.2 Require the inclusion of noise-reducing design features in development consistent with standards in Figure N–10 (Noise/Land Use Compatibility Criteria), Title 24 California Code of Regulations and Title 7 of the Municipal Code.

N-1.3 Enforce the City of Riverside Noise Control Code to ensure that stationary noise (Chapters

7.25 and 7.30) and noise emanating from construction activities (Section 7.35.020G.), private developments/residences and special events (Chapters 7.25 and 7.30) are minimized.

N-1.4 Incorporate noise considerations into the site plan review process, particularly with regard to parking and loading areas, ingress/egress points and refuse collection areas.

N-1.5 Avoid locating noise-sensitive land uses in existing and anticipated noise-impacted areas.

16 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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Objective N-2 Minimize the adverse effects of airport related noise through proper land use planning.

N-2.1 Ensure that new development can be made compatible with the noise environment by using noise/land use compatibility standards (Figure N–10 – Noise/Land Use Noise Compatibility Criteria) and the airport noise contour maps (found in the Riverside County Airport Land Use Compatibility Plans) as guides to future planning and development decisions.

N-2.5 Utilize the Airport Protection Overlay Zone, as appropriate, to advise landowners of special noise considerations associated with their development.

Objective N-3 Minimize ground transportation-related noise impacts.

N-3.1 Ensure that noise impacts generated by vehicular sources are minimized through the use of noise reduction features (e.g., earthen berms, landscaped walls, lowered streets, improved technology).

Objective N-4 Minimize ground transportation-related noise impacts.

N-4.1 Ensure that noise impacts generated by vehicular sources are minimized through the use of noise reduction features (e.g., earthen berms, landscaped walls, lowered streets, improved technology).

17 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Normally Acceptable:

Conditionally Acceptable:

Normally Unacceptable:

Conditionally Unacceptable:

Notes:

Table 5
Infill Single Family Residential*
Commercial - Motels, Hotels, Transient
Lodging
Schools, Libraries, Churches, Hospitals,
Nursing Homes
Amphitheaters, Concert Hall, Auditorium,
Meeting Hall
Single Family Residential*
*For properties located within airport influence areas, acceptable noise limits for single family residential uses are established by the Riverside County Airport Land Use Compatibility Plan.

Land Use Category
Noise/Land Use Noise Compatibility Criteria
Community Noise Equivalent Level (CNEL)
Source: City of Riverside General Pan 2025 Noise Element Figure N-10, February 2018.

New construction or development should generally not be undertaken, unless it can be demonstrated that noise reduction requirements can be employed to reduce noise impacts to an acceptable level. If new construction or development does proceed, a detailed analysis of noise reduction requirements must be made and needed noise insulation features inluded in the design.

Specified land use is satisfactory, based up the assumption that any building is of normal conventional construction, without any special noise insulation requirements.

New construction or development should be undertaken only after a detailed analysis of noise reduction requirements is made and needed noise insulation features included in design. Conventional constuction, but with closed windows and fresh air supply systems or air conditioning will normally suffice.

New construction or development should generally be discouraged. If new construction or development does proceed, a detailed analysis of noise reduction requirements must be made and needed noise insulation features included in design.

Sports Arenas, Outdoor Spectator Sports
Playgrounds, Neighborhood Parks
Freeway Adjacent Commercial, Office,
and Industrial Uses
Golf Courses, Riding Stables, Water Rec.,
Cemeteries
Office Buildings, Business, Commercial,
Professional
Industrial, Manufacturing, Utilities,
Agriculture
55 60 65 70 75 80 85
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City of Riverside Municipal Code

Section 7.25.010 Exterior sound level limits

A. Unless a variance has been granted as provided in this title, it shall be unlawful for any person to cause or allow the creation of any noise which exceeds the following:

a. The exterior noise standard of the applicable land use category, shown in Table 6, up to five decibels, for a cumulative period of more than 30 minutes in any hour; or b. The exterior noise standard of the applicable land use category, shown in Table 6, plus five decibels, for a cumulative period of more than 15 minutes in any hour; or c. The exterior noise standard of the applicable land use category, shown in Table 6, plus ten decibels, for a cumulative period of more than five minutes in any hour; or d. The exterior noise standard of the applicable land use category, shown in Table 6, plus 15 decibels, for the cumulative period of more than one minute in any hour; or e. The exterior noise standard for the applicable land use category, shown in Table 6, plus 20 decibels or the maximum measured ambient noise level, for any period of time.

B. If the measured ambient noise level exceeds that permissible within any of the first four noise limit categories, the allowable noise exposure standard shall be increased in five decibel increments in each category as appropriate to encompass the ambient noise level. In the event the ambient noise level exceeds the fifth noise limit category, the maximum allowable noise level under said category shall be increased to reflect the maximum ambient noise level.

C. If possible, the ambient noise level shall be measured at the same location along the property line with the alleged offending noise source inoperative. If for any reason the alleged offending noise source cannot be shut down, then the ambient noise must be estimated by performing a measurement in the same general area of the source but at a sufficient distance that the offending noise is inaudible. If the measurement location is on the boundary between two different districts, the noise shall be the arithmetic mean of the two districts.

D. Where the intruding noise source is an air-conditioning unit or refrigeration system which was installed prior to the effective date of this title, the exterior noise level when measured at the property line shall not exceed 60 dBA for units installed before 1-1-80 and 55 dBA for units installed after 1-1-80.

19 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Land Use Category Time Period Noise Level
Night (10:00 PM - 7:00 AM) 45 dBA
Day (7:00 AM - 10:00 PM) 55 dBA
Office/Commercial Any time 65 dBA
Industrial Any time 70 dBA
Community Support Any time 60 dBA
Public Recreation Facility Any time 65 dBA
Nonurban Any time 70 dBA
Land Use Category
Residential
Office/Commercial
Industrial
Community Support
Nonurban
Notes:

Exterior Noise Standards
Residential
Table 6
Exterior Sound Level Limits
Land Use Category/Zoning Matrix
Source: Section 7.25.010(D) of the City of Riverside Municipal Code.

Underlying Zone
RE, RA-5, RR, RC, R-1-1/2 acre, R-1-13000, R-1-10500, R-1-8500, R-1-7000, R-3- 25000, R-3-4000, R-3-3000, R-3-2000, R-3-1500, R-4

O, CRC, CR-NC, CR, CG

BMP, I, AIR
Any permitted zone
Any permitted zone
a. The exterior noise standard of the applicable land use category, shown in Table 6, up to five decibels, for a cumulative period of more than 30 minutes in any hour; or b. The exterior noise standard of the applicable land use category, shown in Table 6, plus five decibels, for a cumulative period of more than 15 minutes in any hour; or c. The exterior noise standard of the applicable land use category, shown in Table 6, plus ten decibels, for a cumulative period of more than five minutes in any hour; or d. The exterior noise standard of the applicable land use category, shown in Table 6, plus 15 decibels, for the cumulative period of more than one minute in any hour; or e. The exterior noise standard for the applicable land use category, shown in Table 6, plus 20 decibels or the maximum measured ambient noise level, for any period of time.

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Section 7.30.015 Interior sound level limits

A. No person shall operate or cause to be operated, any source of sound indoors which causes the noise level, when measured inside another dwelling unit, school or hospital, to exceed:

1. The interior noise standard for the applicable land category area, shown in Table 7, up to five decibels, for a cumulative period of more than five minutes in any hour;

2. The interior noise standard for the applicable land use category, shown in Table 7, plus five decibels, for a cumulative period of more than one minute in any hour;

3. The interior noise standard for the applicable land use category, shown in Table 7, plus ten decibels or the maximum measured ambient noise level, for any period of time.

B. If the measured interior ambient noise level exceeds that permissible within the first two noise limit categories in this section, the allowable noise exposure standard shall be increased in five decibel increments in each category as appropriate to reflect the interior ambient noise level. In the event the interior ambient noise level exceeds the third noise limit category, the maximum allowable interior noise level under said category shall be increased to reflect the maximum interior ambient noise level.

C. The interior noise standard for various land use districts shall apply, unless otherwise specifically indicated, within structures located in designated zones with windows opened or closed as is typical of the season.

Section 7.35.020(G) Exemptions

Noise sources associated with construction, repair, remodeling, or grading of any real property; provided a permit has been obtained from the City as required; and provided said activities do not take place between the hours of 7:00 PM and 7:00 AM on weekdays, between the hours of 5:00 PM and 8:00 AM on Saturdays, or at any time on Sunday or a federal holiday, are exempt from the City’s Nuisance noise standards presented in Tables 6 and 7.

21 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Time Period Noise Level
Night (10:00 PM - 7:00 AM) 35 dBA
Day (7:00 AM - 10:00 PM) 45 dBA
7:00 AM – 10:00 PM (while school is in session) 45 dBA
Any time 45 dBA
Notes:

3. The interior noise standard for the applicable land use category, shown in Table 7, plus ten decibels or the maximum measured ambient noise level, for any period of time.

2. The interior noise standard for the applicable land use category, shown in Table 7, plus five decibels, for a cumulative period of more than one minute in any hour;

1. The interior noise standard for the applicable land category area, shown in Table 7, up to five decibels, for a cumulative period of more than five minutes in any hour;
A. No person shall operate or cause to be operated, any source of sound indoors which causes the noise level, when measured inside another dwelling unit, school or hospital, to exceed:

Table 7
Interior Sound Level Limits
Interior Noise Standard
Source: Section 7.30.015(C) of the City of Riverside Municipal Code.

Hospital
School
Residential
Land Use
Category
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5. ANALYTICAL METHODOLOGY AND MODEL PARAMETERS

This section discusses the analysis methodologies used to assess noise impacts.

CONSTRUCTION NOISE MODELING

Construction noise will vary depending on the construction process, type of equipment involved, location of the construction site with respect to sensitive receptors, the schedule proposed to carry out each task (e.g., hours and days of the week) and the duration of the construction work.

Construction noise associated with the proposed project was calculated at the sensitive receptor locations, utilizing methodology presented in the Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual (2018) together with several key construction parameters, including: distance to each sensitive receiver, equipment usage, percent usage factor, and baseline parameters for the project site.

Distances to receptors were based on the acoustical center of the project site.

The equipment used to calculate the construction noise levels for each phase were based on assumptions and anticipated project construction activities. For analysis purposes, the distance measured from the project site to sensitive receptors was assumed to be the acoustical center of the project site to the property line of residential properties with existing residential buildings. Sound emission levels associated with typical construction equipment as well as typical usage factors are provided in Table 8. Construction noise worksheets are provided in Appendix D.

SOUNDPLAN NOISE MODEL

The SoundPLAN acoustical modeling software was utilized to model project operational stationary noise levels from the proposed project to adjacent sensitive uses (e.g., residences). SoundPLAN is capable of evaluating stationary noise sources (e.g., parking lots, drive-thru menus, carwash equipment, vacuums, etc.). The SoundPLAN software utilizes algorithms (based on the inverse square law) to calculate noise level projections.

The software allows the user to input specific noise sources, spectral content, sound barriers, building placement, topography, and sensitive receptor locations. In addition to the information provided below, noise modeling input and outputs assumptions are provided in Appendix E.

Operational Noise

Operational noise levels were modeled utilizing representative sound levels in the SoundPLAN model.

Modeled noise sources include parking lot, HVAC equipment, and parking lot noise. The busiest hour associated with project operation was modeled utilizing representative sound levels in the SoundPLAN model.

All noise sources were modeled to be in full operation.

Parking Lot Noise

Parking lot noise was calculated using SoundPLAN methodology. Specifically, the traffic volume of the parking lot is entered with the number of moves per parking space, the hour and the number of parking bays. The user defines whether the parking lots are for automobiles, motorcycles, or trucks, and the emission level of a parking lot is automatically adjusted accordingly. The values for the number of parking moves for each time slice is the number of parking moves per reference unit (most often per parking bay), averaged for the hour 2.

SoundPLAN utilizes parking lot noise emission levels from the 6th revised edition of the parking lot study “Recommendations for the Calculation of Sound Emissions of Parking Areas, Motorcar Centers and Bus

2 SoundPLAN Essential 5.1 Manual. SoundPLAN GmbH. August 2020. https://www.aacacustica.com/galeria/soundplan/essential/Manual_SoundPLAN_Essential_5.1.pdf 23 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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Stations as well as of Multi-Story Car Parks and Underground Car Parks” published by the Bavarian Landesamt für Umwelt provides calculation methods to determine the emissions of parking lots.

The parking lot emission table documents the reference level (Lw, ref) from parking lot study:

Lw, ref = Lw0 + KPA + KI + KD + KStrO + 10 log(B) [dB(A)]

With the following parameters:

Lw0 = Basic sound power, sound power level of one motion / per hour on P+R areas = 63 dB(A) KPA = Surcharge parking lot type
KI = Surcharge for impulse character
KD = Surcharge for the traffic passaging and searching for parking bays in the driving lanes 2.5 * lg (f * B - 9) f = Parking bays per unit of the reference value
B = Reference value
KStrO = Surcharge for the road surface
B = Reference value

Mechanical Equipment (HVAC Units)

To be conservative, it was assumed that building associated with the proposed project would include a ground mounted heating, ventilation, and air conditioning (HVAC) unit. A noise reference level of 67.7 dBA at 3 feet (sound power level of 78.7 dB) was utilized to represent rooftop 5 Ton Carrier HVAC units3. A rooftop HVAC plan is not available at the time of this analysis so the exact location of the unit on the building was estimated.

The noise source height for each HVAC unit was assumed at 1 meter above the roof top. The roof top is assumed to be approximately 4.57 meters (~15 feet) above grade.

Truck Drive

For noise modeling purposes, it was assumed that 4 heavy trucks would access the site and travel to the south end per day. The road element in the SoundPLAN noise model was used to account for truck height and emissions.

MOBILE SOURCE NOISE MODELING

Noise from vehicular traffic was projected using a computer program that replicates the FHWA Traffic Noise Noise from vehicular traffic (Existing, Existing Plus Project, and Future) was modeled using a computer program that replicates the FHWA Traffic Noise Prediction Model (FHWA-RD-77-108). The FHWA model arrives at the predicted noise level through a series of adjustments to the Reference Energy Mean Emission Level (REMEL). Key model parameters and REMEL adjustments are presented below:

 Roadway classification (e.g., freeway, major arterial, arterial, secondary, collector, etc.),  Roadway active width (distance between the center of the outer most travel lanes on each side of the roadway),
 Average Daily Traffic (ADT) Volumes, Travel Speeds, Percentages of automobiles, medium trucks and heavy trucks,
 Roadway grade and angle of view,
 Site conditions (e.g., soft vs. hard), and

3 MD Acoustics, LLC Noise Measurement Data for RTU –Carrier 50TFQ0006 and car alarm. 24 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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 Percentage of total ADT which flows each hour throughout a 24-hour period.

Traffic noise levels were calculated at the right-of-way based on distance from the centerline of the analyzed roadway. The modeling is theoretical and does not take into account any existing barriers, structures, and/or topographical features that may further reduce noise levels. Therefore, the modeled noise levels are shown for comparative purposes only to show the difference between with and without project conditions. Traffic noise calculation worksheets are included in Appendix F.

Existing and Existing Plus Project Traffic Noise Levels

Project generated vehicle traffic is expected to travel on Indiana Avenue to access the project site. Existing average daily vehicle trips for Indiana Avenue were based on the City of Riverside Traffic Volume Counts.4 As no project trip distribution is provided and to provide a conservative scenario, it was assumed that all project generated vehicle trips would travel on each of the modeled roadway segments. Table 9 includes the modeled roadway segments as well as the average daily traffic volumes, posted speed limits, and vehicle mix utilized in this analysis.

GROUNDBORNE VIBRATION MODELING

Groundborne vibration modeling was performed using vibration propagation equations and construction equipment source levels obtained from the FTA Transit Noise and Vibration Impact Assessment Manual (2018).

Table 10 shows typical vibration levels associated with commonly used construction equipment based on data from the FTA.

There are several types of construction equipment that can cause vibration levels high enough to annoy persons in the vicinity and/or result in architectural or structural damage to nearby structures and improvements. For example, as shown in Table 10, a vibratory roller could generate up to 0.21 in/sec PPV at and operation of a large bulldozer could generate up to 0.089 PPV at a distance of 25 feet (two of the most vibratory pieces of construction equipment). Groundborne vibration at sensitive receptors associated with this equipment would drop off as the equipment moves away. For example, as the vibratory roller moves further than 100 feet from the sensitive receptors, the vibration associated with it would drop below 0.0026 in/sec PPV. It should be noted that these vibration levels are reference levels and may vary slightly depending upon soil type and specific usage of each piece of equipment. Groundborne vibration calculations are provided in Appendix G.

The fundamental equation used to calculate vibration propagation through average soil conditions and distance is as follows:

PPVequipment = PPVref (25/Drec)n

Where: PPVref = reference PPV at 25ft.

Drec = distance from equipment to receiver in ft.
n = 1.5 (the value related to the attenuation rate through ground)

4 The City of Riverside 24 Hour Volume Counts as updated May 23, 2023. The segment of Indiana Avenue west of Harrison Street was utilized in the analysis. https://riversideca.gov/publicworks/sites/riversideca.gov.publicworks/files/pdf/traffic-volume-counts_5-23-

23.pdf
25 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Table 8 (1 of 2)
CA/T Equipment Noise Emissions and Acoustical Usage Factor Database Equipment Description
Impact
Device?
Acoustical
Use Factor (%)
Spec. Lmax
@ 50ft
(dBA, slow)
Actual
Measured
Lmax @ 50ft
(dBA, slow)
No. of Actual
Data Samples
(Count)
All Other Equipment > 5 HP No 50 85 -N/A- 0
Auger Drill Rig No 20 85 84 36
Backhoe No 40 80 78 372
Bar Bender No 20 80 -N/A- 0
Blasting Yes -N/A- 94 -N/A- 0
Boring Jack Power Unit No 50 80 83 1
Chain Saw No 20 85 84 46
Clam Shovel (dropping) Yes 20 93 87 4
Compactor (ground) No 20 80 83 57
Compressor (air) No 40 80 78 18
Concrete Batch Plant No 15 83 -N/A- 0
Concrete Mixer Truck No 40 85 79 40
Concrete Pump Truck No 20 82 81 30
Concrete Saw No 20 90 90 55
Crane No 16 85 81 405
Dozer No 40 85 82 55
Drill Rig Truck No 20 84 79 22
Drum Mixer No 50 80 80 1
Dump Truck No 40 84 76 31
Excavator No 40 85 81 170
Flat Bed Truck No 40 84 74 4
Forklift2,3 No 50 n/a 61 n/a
Front End Loader No 40 80 79 96
Generator No 50 82 81 19
Generator (<25KVA, VMS signs) No 50 70 73 74
Gradall No 40 85 83 70
Grader No 40 85 -N/A- 0
Grapple (on backhoe) No 40 85 87 1
Horizontal Boring Hydr. Jack No 25 80 82 6
Hydra Break Ram Yes 10 90 -N/A- 0
Impact Pile Driver Yes 20 95 101 11
Jackhammer Yes 20 85 89 133
Man Lift No 20 85 75 23
Mounted Impact hammer (hoe ram) Yes 20 90 90 212
Pavement Scarafier No 20 85 90 2
Paver No 50 85 77 9
Pickup Truck No 50 85 77 9
Paving Equipment No 50 85 77 9
Pneumatic Tools No 50 85 85 90
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26 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Table 8 (2 of 2)
CA/T Equipment Noise Emissions and Acoustical Usage Factor Database Equipment Description
Impact
Device?
Acoustical
Use Factor (%)
Spec. Lmax
@ 50ft
(dBA, slow)
Actual
Measured
Lmax @ 50ft
(dBA, slow)
No. of Actual
Data Samples
(Count)
Pumps No 50 77 81 17
Refrigerator Unit No 100 82 73 3
Rivit Buster/chipping gun Yes 20 85 79 19
Rock Drill No 20 85 81 3
Roller No 20 85 80 16
Sand Blasting (Single Nozzle) No 20 85 96 9
Scraper No 40 85 84 12
Shears (on backhoe) No 40 85 96 5
Slurry Plant No 100 78 78 1
Slurry Trenching Machine No 50 82 80 75
Soil Mix Drill Rig No 50 80 -N/A- 0
Tractor No 40 84 -N/A- 0
Vacuum Excavator (Vac-truck) No 40 85 85 149
Vacuum Street Sweeper No 10 80 82 19
Ventilation Fan No 100 85 79 13
Vibrating Hopper No 50 85 87 1
Vibratory Concrete Mixer No 20 80 80 1
Vibratory Pile Driver No 20 95 101 44
Warning Horn No 5 85 83 12
Welder/Torch No 40 73 74 5
Notes:
(1) Source: FHWA Roadway Construction Noise Model User's Guide January 2006. (2) Warehouse & Forklift Noise Exposure - NoiseTesting.info Carl Stautins, November 4, 2014 http://www.noisetesting.info/blog/carl-strautins/page-3/ (3) Data provided Leq as measured at the operator. Sound Level at 50 feet is calculated using Inverse Square Law.

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27 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Existing
Existing
Plus Project
Indiana Avenue In the vicinity of the Project Site 9,924 9,928 40 Hard Motor-Vehicle Type
Daytime %
(7 AM-7 PM)
Evening %
(7 PM-10 PM)
Night %
(10 PM-7 AM)
Automobiles 75.54 14.02 10.43
Medium Trucks 48.00 2.00 50.00
Heavy Trucks 48.00 2.00 50.00
Notes:
(2) Existing vehicle percentages are based on the Riverside County Industrial Hygiene Letter for Traffic Noise.

Vehicle Distribution (Heavy Mix)2
(1) The Air Quality Technical Memorandum prepared for the proposed project states that “the proposed use is for a consumer RV and travel trailer storage yard which has a low associated vehicle trip rate. In addition, the project’s associated retail sales yard is located at 10717 Indiana Avenue, which is less than a mile from the project site, and the vehicle trips associated with the proposed project occur between the project site and this location. Based on these project operational details, it is assumed that the proposed project would have up to four vehicle trips per day." Therefore, it was assumed that the project would have four average daily vehile trips. Existing average daily vehicle trips for Indiana Avenue were based on the City of Riverside 24 Hour Volume Counts as updated May 23, 2023.

The segment of Indiana Avenue west of Harrison Street was utilized in the analysis. https://riversideca.gov/publicworks/sites/riversideca.gov.publicworks/files/pdf/traffic-volume-counts_5-23-23.pdf Table 9
Roadway Segment
Site
Conditions
Posted
Travel
Speeds
(MPH)
Average Daily Traffic Volume1
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28 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter PPV at 25 ft, in/sec Approximate Lv* at 25 ft
upper range 1.518 112
typical 0.644 104
upper range 0.734 105
typical 0.170 93

0.202 94
in soil 0.008 66
in rock 0.017 75

0.210 94

0.089 87

0.089 87

0.089 87

0.076 86

0.035 79

0.003 58
Table 10
Equipment
Pile Driver (impact)
Pile Driver (sonic)
Caisson Drilling
clam shovel drop (slurry wall)
Hydromill (slurry wall)
Vibratory Roller
Hoe Ram
Large Bulldozer
Jackhammer
Small Bulldozer
Source: Federal Transit Administration: Transit Noise and Vibration Impact Assessment Manual, 2018. *RMS velocity in decibels, VdB re 1 micro-in/sec
Construction Equipment Vibration Source Levels
Loaded Trucks
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6. NOISE AND VIBRATION IMPACTS

This section analyzes the significance of project-related noise and groundborne vibration impacts relative to standards established by the City of Riverside and other applicable agencies in the context of CEQA. Appendix G of the California Environmental Quality Act Guidelines (Title 14, Division 6, Chapter 3 of the California Code of Regulations) includes an environmental checklist that identifies issues upon which findings of significance should be made. The CEQA Environmental Checklist Appendix G, XIII. Noise, requires determination if the project would result in:

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

NOISE IMPACTS

Would the project result in:

a) Generation of a substantial temporary or permanent increase in ambient noise levels in the vicinity of the project in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies?

Finding: Less Than Significant

In relation to the Environmental Checklist noise issue “a”, applicable standards established by the City of Riverside can be categorized into the following areas:

 Construction Noise
 Operational Noise

Project Construction

On-Site Equipment

City of Riverside Municipal Code Section 7.35.020(G) provides that noise sources associated with construction, repair, remodeling, or grading of any real property is exempt from the provisions of Title 7 of the City’s Municipal Code, which governs noise, provided that such activity does not take place between the hours of 7:00 PM to 7:00 AM on weekdays, 5:00 PM to 8:00 AM on Saturdays, or at any time on Sundays or federal holidays.

No construction, repair, remodeling, or grading for the Project will occur between the hours of 7:00 PM to 7:00 AM on weekdays, 5:00 PM to 8:00 AM on Saturdays, or at any time on Sundays or federal holidays.

Construction, remodeling, and grading for the project is anticipated to take place over a period of 14 days.

Therefore, there is no need for construction activity outside the hours set forth in Municipal Code Section

7.35.020(G), and the project applicant does not propose any construction activity during these times.

Neither the City of Riverside’s General Plan nor Municipal Code establish numeric thresholds for maximum acceptable construction source noise levels at potentially affected receivers. The Federal Transit 30 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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Administration (FTA) does provide standards for maximum acceptable construction source noise in its Transit Noise and Vibration Impact Assessment Manual , and as discussed below, the Project would not generate a substantial temporary or permanent increase in ambient noise levels in the vicinity of the project in excess of those standards. Therefore, based on the below analysis, not only are the noise sources associated with the construction of the Project remodeling and grading exempt from the City’s noise regulations pursuant to Municipal Code Section 7.35.020(G), but Project related construction noise sources would additionally not qualify as a significant noise impact under other standards.

According to the FTA, project construction noise criteria should account for the existing noise environment, the absolute noise levels during construction activities, the duration of the construction, and the adjacent land use. Due to the lack of standardized construction noise thresholds, the FTA provides guidelines that can be considered reasonable criteria for construction noise assessment. As shown in Table 4, the FTA considers a daytime exterior construction noise level of 80 dBA L eq for noise sensitive residential land uses and 85 dBA Leq for commercial uses. In addition, the FTA considers a nighttime exterior construction noise level of 70 dBA Leq for noise sensitive residential land uses and 85 dBA Leq for commercial uses.

Accordingly, the project could result in a significant impact if:

 Project construction noise exceeds 80 dBA L eq during the daytime or 70 dBA L eq during the nighttime at residential uses.
 Project construction noise exceeds 85 dBA Leq during the daytime or nighttime at commercial uses.

Project construction noise levels at nearby sensitive receptors were calculated using the FTA methodology.

Construction noise modeling worksheets for each phase are provided in Appendix D. Anticipated noise levels during each construction phase are presented in Table 11.

The single-family residential uses to the south and the commercial uses to the east, west, and north of the project site boundaries may be affected by short-term noise impacts associated with construction noise, but, as shown in the results below, impacts would be less than significant.

As shown in Table 11, modeled construction noise levels are forecast to reach up to 65.4 dBA L eq at the nearest residential property line to the south, 84.9 dBA L eq at the nearest commercial property line to the west, 64.8 dBA L eq at the nearest commercial property line to the north, and 84.9 dBA L eq at the nearest commercial property line to the east of the project site.

Table 11 also includes a comparison of existing noise levels and project construction noise levels. Short-term noise measurement (STNM)3 was chosen to represent noise levels at the nearest property lines of the residential uses located to the south, STNM2 was chosen to represent noise levels at the nearest property lines of the commercial uses located to the west and east, and STNM1 was chosen to represent noise levels at the nearest property lines of the commercial uses located to the north of the project site.

Project construction is not expected to occur outside of the hours outlined in Section 7.35.020(G) of the City’s Municipal Code. Based on the modeled construction noise levels (see Table 11), construction noise levels are estimated to reach up to 65.4 dBA L eq at the nearest residential use and 84.9 dBA L eq at the nearest commercial use. Therefore, project construction activities will not exceed the daytime FTA residential construction noise standard of 80 dBA L eq for residential uses nor the daytime FTA commercial construction noise standard of 85 dBA L eq for commercial uses. The project impact would be less than significant. No mitigation is required.

31 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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Off-Site Vehicle Trips

Construction truck trips would occur throughout the construction period. Given the project site’s proximity to the 91 Freeway, it is anticipated that vendor and/or haul truck traffic would take the most direct route to the appropriate freeway ramps, east or west on Indiana Avenue to either Vanburen Boulevard or Tyler Street.

Vehicle emission noise associated with the 91 Freeway is the dominant noise source in the project area.

Indiana Avenue currently handles between approximately 9,363 and 9,924 average daily vehicle trips in the vicinity of the project site.5 As stated previously, a doubling of traffic volume would be anticipated to increase noise levels by approximately 3 dBA. Furthermore, it is widely accepted that the average healthy human ear can barely perceive changes of 3 dBA in an outdoor environment and that a change of 5 dBA is readily perceptible.6 Therefore, vehicle traffic generated during project construction would be anticipated to be nominal relative to existing roadway volumes and would not result in the doubling of traffic volume necessary to increase noise levels by 3 dBA. The project impact is less than significant; no mitigation is required.

Project Operational Noise

Onsite Noise Sources

The Leq (30-minute) noise levels associated with the proposed project were analyzed in order to determine project compliance with the City’s Stationary Exterior and Interior Noise Standards in Section 7.25.010(D) and Section 7.30.015 (C) of the City of Riverside Municipal Code and presented in Table 6 and Table 7 of this report. If noise modeling shows that the project is in compliance with the L eq criteria, it is unlikely that any of the other noise standards which are averaged over other time periods would be exceeded.

The project site is adjacent to or near several types of land uses including parcels zoned Business and Manufacturing Park, Mixed Use Village, and Medium Density Residential. Different noise criteria apply to each zoning designation as presented in Table 6 and Table 7. Operation of the proposed project would result in a substantial increase in noise levels if it would:

 Exceed the day or nighttime exterior noise standards at residential land uses (55 and 45 dBA L eq respectively);
 Exceed the day or nighttime interior noise standards at residential land uses (45 and 35 dBA L eq respectively);
 Exceed the 65 dBA Leq exterior noise standard at commercial land uses; or  Exceed the 70 dBA Leq exterior noise standard at Business and Manufacturing Park land uses. 
Compliance with Leq (30-minute) Standard

There are single family residential land uses approximately 145 feet south of the project site. As shown on Figure 6 and on Figure 7 project generated on-site operational noise levels would reach 33.6 dBA L eq at the closest residence and would not exceed the City’s exterior noise day or nighttime noise standards of 55 and 45 dBA L eq, respectively. Given that the exterior noise level is expected to be lower than the daytime and nighttime interior noise standards of 45 and 35 dBA Leq, respectively, interior noise standards will also not be exceeded due to project generated noise.

There are existing concrete walls between the project site and the business park and mini storage land uses located east and west of the project site approximately 6 feet in height and, as shown in Figure 6, project

5 The existing average daily vehicle trips for Indiana Avenue were obtained from the City of Riverside 24 Hour Volume Counts as updated May 23, 2023. The segments of Indiana Avenue east and west of Harrison Street were utilized. https://riversideca.gov/publicworks/sites/riversideca.gov.publicworks/files/pdf/traffic-volume-counts_5-23-23.pdf 6 California Department of Transportation’s Technical Noise Supplement to the Traffic Noise Analysis Protocol (2013) 32 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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operational noise would range between 44.8 and 46.5 dBA L eq at adjacent land uses and would not exceed the City’s exterior noise standard of 70 dBA Leq at either of these uses.

Commercial land uses located north of the project site would be exposed to project operational noise levels up to 34.5 dBA L eq and would not exceed the City’s exterior noise standard for commercial land uses of 65 dBA Leq.

In no case would the project exceed the City’s applicable exterior noise standards for stationary noise sources.

Furthermore, as the measured existing ambient noise levels range between 53.8 to 69 dBA L eq, the project operational noise would not be noticeable over the existing noise environment. This impact is less than significant. No mitigation is required.

Offsite Noise Sources

The City of Riverside has adopted Land Use / Noise Compatibility Guidelines as shown in Table 5. Per these guidelines, noise levels that do not exceed 60 dBA CNEL are considered “normally acceptable” at single-family residential land uses, noise levels that do not exceed 65 dBA CNEL are considered to be “normally acceptable” at commercial land uses, and noise levels that do not exceed 70 dBA CNEL are considered to be “normally acceptable” at industrial land uses.

It is widely accepted that the average healthy human ear can barely perceive changes of 3 dBA in an outdoor environment and that a change of 5 dBA is readily perceptible. 7 Therefore, considering the above land use/noise compatibility guidelines, the project would result in a significant impact if:

 The addition of project trips on surrounding roadways causes noise levels to increase by:
□ 5 dBA where the existing ambient noise level is less than or equal to a CNEL of 60 dBA; or, □ 3 dBA where the existing ambient noise level is a CNEL of 60 dBA to 65 dBA; or □ 1.5 dBA where the existing ambient noise level is greater than or equal to a 65 dBA CNEL.

Roadway noise levels were calculated along Indiana Avenue in the vicinity of the project site based on the FHWA Traffic Noise Prediction Model methodology. During operation, the proposed project is expected to generate approximately four average daily vehicle trips. Roadway noise levels were calculated for the following scenarios:
 Existing (without Project): This scenario refers to existing year traffic noise conditions.  Existing Plus Project: This scenario refers to existing year plus project traffic noise conditions.

Table 12 shows the change in existing roadway noise levels with the addition of project-generated operational trips. The modeled existing traffic noise level is 73 dBA CNEL and the modeled Existing Plus Project traffic noise level is 73 dBA CNEL at the right-of-way of the modeled roadway segment. FHWA Traffic Noise Prediction Model calculation worksheets are provided in Table 12. The addition of project trips is not expected to change noise levels in excess of the applicable threshold at any of the study roadway segments (see Table 12). The project impact is less than significant; no mitigation is required.

GROUNDBORNE VIBRATION IMPACTS

Would the project result in:

b) Generation of excessive groundborne vibration or groundborne noise levels?

7 California Department of Transportation’s Technical Noise Supplement to the Traffic Noise Analysis Protocol (2013) 33 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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Finding: Less Than Significant
In relation to the Environmental Checklist noise issue “b”, the City of Riverside has not established thresholds of significance concerning groundborne vibration. In the absence of City-established thresholds, groundborne vibration impacts are based on guidance from the Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual (FTA, September 2018) (see Regulatory Setting section). Accordingly, the project would result in a significant impact if:

 Groundborne vibration levels generated by the project have the potential to cause architectural damage at nearby buildings by exceeding the following PPV:
□ 0.10 in/sec at buildings extremely susceptible to vibration damage □ 0.20 in/sec at non-engineered timber and masonry buildings □ 0.30 in/sec at engineered concrete and masonry (no plaster) buildings □ 0.50 in/sec at reinforced-concrete, steel or timber (no plaster) buildings  Groundborne vibration levels generated by the project have the potential to cause annoyance at sensitive receptors by exceeding 80 VdB for infrequent events.

Groundborne vibration modeling worksheets are provided in Appendix G.

Existing structures in the immediate vicinity of the project site include adjacent commercial buildings (self- storage) along the western property line, commercial buildings located as close as approximately 95 feet north, 45 feet east, and the residential buildings located as close as approximately 163 feet to the south of the project site boundaries (see Table 13 for more detail).8

Groundborne vibrafion levels associated with project construcfion are provided in Table 13. Based on the groundborne vibrafion modeling, the use of a vibratory roller within 26 feet or the use of large bulldozers within 15 feet of the self-storage structures immediately west of the project site could potenfially result in architectural damage. However, no such use is proposed in connecfion with the Project. The project proposes installafion of a 26-foot-wide swath of concrete extending east from the western property line. The concrete swath will run the enfire length of the exisfing self-storage structure. Vibratory rollers and large bulldozers will not be required for concrete installafion. Potenfial risks to architectural features would be less than significant and no mifigafion is required. Therefore, based on the groundborne vibrafion modeling, and as shown in Table 13, the project has no potenfial to result in architectural damage to surrounding structures.

The most substantial sources of groundborne vibration during post-construction project operations will include the movement of passenger vehicles and trucks on paved and generally smooth surfaces. Loaded trucks generally have a PPV of 0.076 at a distance of 25 feet (Caltrans 2020), which is a substantially lower PPV than that of a vibratory roller (0.210 in/sec PPV at 25 feet). Therefore, groundborne vibration levels generated by project operation would not exceed those modeled for project construction.

As stated previously, annoyance due to groundborne vibration associated with infrequent events can cause annoyance at 80 VdB. The VdB generated by construction equipment may reach up to 70.2 VdB at the nearest sensitive receptor (residences to the south). This impact would be less than significant. No mitigation is required.

8 For modeling purposes, as the commercial use to the west of the project site has structures located adjacent to the project’s western property line, a distance of one foot has been utilized in the modeling. 34 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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AIR TRAFFIC IMPACTS

Would the project result in:

c) For a project located within the vicinity of a private airstrip or an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the area to excessive noise levels?

Finding: No Impact

The closest airport to the project site is the Riverside Municipal Airport, with airport runways located as close as approximately 2.7 miles to the northeast of the project site. Per the Riverside County Airport Land Use Compatibility Plan (ALUCP) Policy Document Map RI-3 (March 2005), the project site is also well outside the 55 dBA CNEL noise contour for the Riverside Municipal Airport. 9 The project would not expose people residing or working in the project area to excessive noise levels associated with airports. This impact would be less than significant. No mitigation is required.

9 https://rcaluc.org/Plans/New-Compatibility-Plan

35 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Phase Receptor Location
Closest
Measured
Ambient
Noise
Location2
Existing
Measured
Noise
Levels
(dBA Leq)
Construction
Noise
Levels
(dBA Leq)
Applicable
Daytime FTA
Threshold
Construction
Noise Levels
Exceed
Applicable
Daytime FTA
Threshold?
Residential to South
(10047 Rhinelander Drive) STNM3 53.8 65.4 80 No
Commercial to West (Tyler Mall Mini
Storage, 10090 Indiana Avenue) STNM2 58.9 84.9 85 No
Commercial to North
(10031 Indiana Avenue) STNM1 69.0 64.8 85 No
Commercial to East
(10020 Indiana Avenue) STNM2 58.8 84.9 85 No
Residential to South
(10047 Rhinelander Drive) STNM3 53.8 45.3 80 No
Commercial to West (Tyler Mall Mini
Storage, 10090 Indiana Avenue) STNM2 58.9 71.4 85 No
Commercial to North
(10031 Indiana Avenue) STNM1 69.0 58.5 85 No
Commercial to East
(10020 Indiana Avenue) STNM2 58.8 67.8 85 No
Residential to South
(10047 Rhinelander Drive) STNM3 53.8 64.1 80 No
Commercial to West (Tyler Mall Mini
Storage, 10090 Indiana Avenue) STNM2 58.9 83.6 85 No
Commercial to North
(10031 Indiana Avenue) STNM1 69.0 63.4 85 No
Commercial to East
(10020 Indiana Avenue) STNM2 58.8 83.6 85 No
Residential to South
(10047 Rhinelander Drive) STNM3 53.8 56.6 80 No
Commercial to West (Tyler Mall Mini
Storage, 10090 Indiana Avenue) STNM2 58.9 76.2 85 No
Commercial to North
(10031 Indiana Avenue) STNM1 69.0 56 85 No
Commercial to East
(10020 Indiana Avenue) STNM2 58.8 76.2 85 No
Construction Noise Levels (dBA Leq)
Table 11
Notes:
(1) Construction noise worksheets are provided in Appendix D. (2) Nearest noise measurement as shown in Figure 5 and Table 1.

Grading
Building Renovation
Paving
Architectural Coating
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36 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Existing
Without
Project at
right-of-way
Existing Plus
Project at
right-of-way
Change in
Noise Level
Exceeds
Standards3
Increase of

1.5 dB or
More?
Indiana Avenue In the vicinity of the Project Site 44 72.7 72.7 0.00 Yes No Notes:
(2) Roadway right-of-way (ROW) from Figure CCM-2, Standard Roadway Cross Section, in the City of Riverside General Plan Circulation and Community Mobility Element (November 2007).

Distance from
roadway
centerline to
right-of-way
(feet)2
(3) Per the City of Riverside normally acceptable standard for single-family detached residential dwelling units of 60 dBA CNEL (see Table 5).

Increase in Existing Noise Levels Due to Project Generated Vehicle Traffic (dBA CNEL) Table 12
(1) Exterior noise levels calculated 5 feet above pad elevation, perpendicular to subject roadway.

Roadway Segment
Modeled Noise Levels (dBA CNEL) 1
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37 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Receptor Location
Distance from
Property Line to
Nearest
Structure (feet) Equipment
Vibration
Level2
Threshold
Exceeded?3
Vibration
Level with
Required
BMP2,4
Threshold
Exceeded with
BMPs?3,4
Architectural Damage Analysis
95 Vibratory Roller 0.028 No - -
95 Large Bulldozer 0.012 No - -
45 Vibratory Roller 0.087 No - -
45 Large Bulldozer 0.037 No - -
163 Vibratory Roller 0.013 No - -
163 Large Bulldozer 0.005 No - -
Annoyance Analysis
163 Vibratory Roller 70 No - -
163 Large Bulldozer 66 No - -
(1) For modeling purposes, as the commercial use to the west of the project site has structures located adjacent to the project’s western property line, a distance of one foot has been utilized in the modeling. (4) A BMP measure restricting the use of vibratory rollers, or other similar vibratory equipment, from operating within 26 feet of existing structures and restricting large bulldozers from operating within 15 feet of commercial structures has been added to the project plans.
(3) The FTA identifies the threshold at which there is a risk to “architectural” damage to non-engineered timber and masonry buildings as a PPV of 0.2 in/sec (see Table 4). In addition, the FTA identifies a vibration annoyance threshold of 72 VdB for residential uses (see Table 3). Per the FTA Transit Noise and VIbration Impact Assessment Manual (September 2018), commercial uses are not considered vibration-sensitive land uses; therefore, the annoyance threshold does not apply to commercial uses. (2) Vibration levels are provided in PPV in/sec for architectural damage and VdB for annoyance.

Notes:

Residential to South
(10047 Rhinelander Drive, Riverside)
Table 13
Construction Vibration Levels at the Nearest Receptors
Commercial to North
(10031 Indiana Avenue, Riverside)
Commercial to East
(10020 Indiana Avenue, Riverside)
Residential to South
(10047 Rhinelander Drive, Riverside)
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38 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Figure 6
Operational Noise Levels (dBA, Leq)
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39 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Figure 7
Operational Noise Contours (dBA, Leq)
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40 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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7. REFERENCES

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

Environmental Protection Agency
1974 "Information on Levels of Environmental Noise Requisite to Protect Public Health And Welfare with an Adequate Margin of Safety," EPA/ONAC 550/9-74-004, March 1974.

Federal Transit Administration
2018 Transit Noise and Vibration Impact Assessment Manual. Typical Construction Equipment Vibration Emissions.

Ganddini Group, Inc.
2023 Richardson RV Storage Air Quality Technical Memorandum. April 17.

Office of Planning and Research
2017 State of California General Plan Guidelines

Riverside, County of
2001 General Plan, Chapter 4, Figure C-3 "Link Volume Capacities/Level of Service for Riverside County Roadways".
2009 County of Riverside Industrial Hygiene Guidelines for Determining and Mitigating Traffic Noise Impacts to Residential Structures and County.
2015 County of Riverside General Plan
2015 County of Riverside Municipal Code.

U.S. Department of Transportation
2006 FHWA Roadway Construction Noise Model User’s Guide. January.

41 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

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APPENDICES

Appendix A List of Acronyms
Appendix B Glossary
Appendix C Noise Measurement Field Worksheets
Appendix D Construction Noise Model Worksheets
Appendix E SoundPLAN Worksheets
Appendix F FHWA Traffic Noise Model Worksheets
Appendix G Groundborne Vibration Worksheets

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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

APPENDIX A

LIST OF ACRONYMS
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

Term Definition
ADT
ANSI
CEQA
CNEL
D/E/N
dB
dBA or dB(A)
dBA/DD
dBA Leq
EPA
FHWA
L02,L08,L50,L90

DNL
Leq(x)
Leq
Lmax
Lmin
Lp
LOS C
Lw
OPR
PPV
RCNM
REMEL
RMS
Average Daily Traffic
American National Standard Institute
California Environmental Quality Act
Community Noise Equivalent Level
Day / Evening / Night
Decibel
Decibel "A-Weighted"
Decibel per Double Distance
Average Noise Level over a Period of Time
Environmental Protection Agency
Federal Highway Administration
A-weighted Noise Levels at 2 percent, 8 percent, 50 percent, and 90 percent, respectively, of the time period
Day-Night Average Noise Level
Equivalent Noise Level for '"x" period of time
Equivalent Noise Level
Maximum Level of Noise (measured using a sound level meter) Minimum Level of Noise (measured using a sound level meter) Sound pressure level
Level of Service C
Sound Power Level
California Governor's Office of Planning and Research
Peak Particle Velocities
Road Construction Noise Model
Reference Energy Mean Emission Level
Root Mean Square
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

APPENDIX B

GLOSSARY
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

Term Definition
Ambient Noise
Level
The all-encompassing noise environment associated with a given environment, at a specified time, usually a composite of sound from many sources, at many directions, near and far, in which usually no particular sound is dominant.

A-Weighted Sound
Level, dBA
The sound level obtained by use of A-weighting. The A-weighting filter de-emphasizes the very low and very high frequency components of the sound in a manner similar to the frequency response of the human ear.

CNEL
Community Noise Equivalent Level. CNEL is a weighted 24-hour noise level that is obtained by adding five decibels to sound levels in the evening (7:00 PM to 10:00 PM), and by adding ten decibels to sound levels at night (10:00 PM to 7:00 AM). This weighting accounts for the increased human sensitivity to noise during the evening and nighttime hours.

Decibel, dB
A logarithmic unit of noise level measurement that relates the energy of a noise source to that of a constant reference level; the number of decibels is 10 times the logarithm (to the base 10) of this ratio.

DNL, Ldn
Day Night Level. The DNL, or Ldn is a weighted 24-hour noise level that is obtained by adding ten decibels to sound levels at night (10:00 PM to 7:00 AM). This weighting accounts for the increased human sensitivity to noise during the nighttime hours.

Equivalent
Continuous Noise
Level, Leq
A level of steady state sound that in a stated time period, and a stated location, has the same A-weighted sound energy as the time-varying sound.

Fast/Slow Meter
Response
The fast and slow meter responses are different settings on a sound level meter. The fast response setting takes a measurement every 100 milliseconds, while a slow setting takes one every second.

Frequency, Hertz In a function periodic in time, the number of times that the quantity repeats itself in one second (i.e., the number of cycles per second).

L02, L08, L50, L90 The A-weighted noise levels that are equaled or exceeded by a fluctuating sound level, 2 percent, 8 percent, 50 percent, and 90 percent of a stated time period, respectively.

Lmax, Lmin
Lmax is the RMS (root mean squared) maximum level of a noise source or environment measured on a sound level meter, during a designated time interval, using fast meter response. Lmin is the minimum level.

Offensive/
Offending/Intrusive
Noise
The noise that intrudes over and above the existing ambient noise at a given location.

The relative intrusiveness of sound depends on its amplitude, duration, frequency, and time of occurrence, and tonal information content as well as the prevailing ambient noise level.

Root Mean Square
(RMS)
A measure of the magnitude of a varying noise source quantity. The name derives from the calculation of the square root of the mean of the squares of the values. It can be calculated from either a series of lone values or a continuous varying function.

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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

APPENDIX C

NOISE MEASUREMENT FIELD WORKSHEETS
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Noise Measurement
Field Data
Project Name: Richardson RV, City of Riverside Date:

Project #:

Noise Measurement #: Technician:

Weather: Settings: SLOW FAST
Temperature: 91 deg F Wind: 7 mph Humidity: 40% Terrain:

Start Time: 1:29 PM End Time: 1:44 PM Run Time:

Leq: 69 dB Traffic noise from the 142 vehicles passing NM1 microphone traveling along Lmax 83.4 dB Indiana Avenue just NE of NM1.

L2 76.2 dB Traffic ambiance from the 91 Fwy, 300' NW of NM1. Noise from occasional air L8 72.8 dB traffic. Some bird noise. Ambiance from passing trains 550' SE of NM1.

L25 69.1 dB
L50 65.4 dB
NOISE METER: CALIBRATOR:

MAKE: MAKE:

MODEL: MODEL:

SERIAL NUMBER: SERIAL NUMBER:

FACTORY CALIBRATION DATE:

FIELD CALIBRATION DATE:

September 23, 2024
Ian Edward Gallagher
Nearest Address or Cross Street: 10030 Indiana Avenue, Riverside, CA 92503 NM1 Run Time: 15 minutes
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Primary Noise Source:

Secondary Noise Sources:

Flat
Site Description (Type of Existing Land Use and any other notable features):

SoundTrack LXT Class 1
<5% cloud, sunshine. Sunset 6:44 PM
Larson Davis CAL 250
Measurement Site: Taken within the sidewalk just north of residence at 10030 Indiana Ave (project site). Adjacent: Indiana Ave (running NE-SW) just NW, 91 Fwy (running NE-S) ~300' NW, and 2 rail lines (running NE-SW) ~550' SE of NM1. Project site (residence) to south, commercial uses to SE and SW and to north (north of Indiana Avenue). 7/10/20247/31/2024
9/23/2024
FACTORY CALIBRATION DATE:

Larson Davis
LXT1
3099
Larson Davis
CAL 250
2723
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Noise Measurement
Field Data
PHOTOS:

NM1 looking NW from sidewalk across Indiana Avenue towards building 10031 NM1 looking SE from sidewalk towards fence to front yard of residence 10030 Indiana Avenue, Riverside. Indiana Avenue, Riverside (project site).

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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Summary
File Name on Meter LxT_Data.429.s
File Name on PC
Serial Number 0003099
Model SoundTrack LxT®
Firmware Version 2.404
User Ian Edward Gallagher
Location NM1 33°54'29.86"N 117°27'5.21"W
Job Description 15 minute noise measurement
Note
Measurement
Start 2024-09-23 13:29:23
Stop 2024-09-23 13:44:23
Duration 00:15:00.0
Run Time 00:15:00.0
Pause 00:00:00.0
Pre-Calibration 2024-09-23 13:28:53
Post-Calibration None
Overall Settings
RMS Weight A Weighting
Peak Weight A Weighting
Detector Slow
Preamplifier PRMLxT1L
Microphone Correction Off
Integration Method Linear
OBA Range Normal
OBA Bandwidth 1/1 and 1/3
OBA Frequency Weighting C Weighting
OBA Max Spectrum At LMax
Overload 122.4 dB
Results
LAeq 69.0
LAE 98.5
EA 786.696 µPa²h
EA8 25.174 mPa²h
EA40 125.871 mPa²h
LApeak (max) 2024-09-23 13:33:16 102.6 dB
LASmax 2024-09-23 13:33:16 83.4 dB
LASmin 2024-09-23 13:39:35 60.0 dB
Statistics
LCeq 76.2 dB LA2.00 76.2 dB
LAeq 69.0 dB LA8.00 72.8 dB
LCeq - LAeq 7.2 dB LA25.00 69.1 dB
LAIeq 71.9 dB LA50.00 65.4 dB
LAeq 69.0 dB LA66.60 63.5 dB
LAIeq - LAeq 3.0 dB LA90.00 61.9 dB
Overload Count 0
Overload Duration 0.0 s
LxT_0003099-20240923 132923-LxT_Data.429.ldbin
Ganddini 19631 Richardson RV, City of Riverside
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/13
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Apx-10
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter /0 /1 /2 /1 /3 □ /5 /6
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter /0 /1 /2 /3 /4 /2 /5 /6 /7
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter /0 /1 /2 /3 /4 /2 /5 /6 /7
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Noise Measurement
Field Data
Project Name: Richardson RV, City of Riverside Date:

Project #:

Noise Measurement #: Technician:

Weather: Settings: SLOW FAST
Temperature: 91 deg F Wind: 7 mph Humidity: 40% Terrain:

Start Time: 2:00 PM End Time: 2:15 PM Run Time:

Leq: 58.8 dB Traffic ambiance from vehicles traveling along Indiana Ave (~350' NW of NM2).

Lmax 69.7 dB Traffic ambiance from 91 Fwy (~600' NW of NM2).

L2 65.0 dB Noise from occasional air traffic. Train passing along tracks 2:06PM to 2:09PM.

L8 62.8 dB Some bird noise. Occasional industrial like noise from Warehouses E of NM2.

L25 58.8 dB
L50 56.3 dB
NOISE METER: CALIBRATOR:

MAKE: MAKE:

MODEL: MODEL:

SERIAL NUMBER: SERIAL NUMBER:

FACTORY CALIBRATION DATE:

FIELD CALIBRATION DATE:

September 23, 2024
Ian Edward Gallagher
Nearest Address or Cross Street: Warehouse Building 10000 Indiana Avenue, Riverside, CA 92503 NM2 Run Time: 15 minutes
19631
Primary Noise Source:

Secondary Noise Sources:

Flat
Site Description (Type of Existing Land Use and any other notable features):

SoundTrack LXT Class 1
<5% cloud, sunshine. Sunset 6:44 PM
Larson Davis CAL 250
Measurement Site: Taken along access road near the ~6' tall NE wall to project site.

Adjcent: Indiana Ave (running NE-SW) to NW, 91 Fwy (running NE-SW) ~300' NW, and 2 rail lines (running NE-SW) ~550' SE of NM1. Warehouses to north/northeast, project sitee to west with various businesses in all directions. 7/10/20247/31/2024
9/23/2024
FACTORY CALIBRATION DATE:

Larson Davis
LXT1
3099
Larson Davis
CAL 250
2723
Apx-14
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Noise Measurement
Field Data
PHOTOS:

NM2 looking NW along access road running parallel to ~6' tall NE wall of site area NM2 looking SE towards the two active train tracks (running NE-SW) ~250' SE of (on the left of image) towards Indiana Ave (~350'). Warehouse building 10000 NM2. Warehouse building 10000 Indiana Ave left of image and site area on the right Indiana Ave on right of image. (on other side of ~6' tall cinderblock wall).

Apx-15
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Summary
File Name on Meter LxT_Data.430.s
File Name on PC
Serial Number 3099
Model SoundTrack LxT®
Firmware Version 2.404
User Ian Edward Gallagher
Location NM2 33°54'27.42"N 117°27'2.49"W
Job Description 15 minute noise measurement
Note
Measurement
Start 2024-09-23 14:00:00
Stop 2024-09-23 14:15:00
Duration 00:15:00.0
Run Time 00:15:00.0
Pause 00:00:00.0
Pre-Calibration 2024-09-23 13:59:41
Post-Calibration None
Overall Settings
RMS Weight A Weighting
Peak Weight A Weighting
Detector Slow
Preamplifier PRMLxT1L
Microphone Correction Off
Integration Method Linear
OBA Range Normal
OBA Bandwidth 1/1 and 1/3
OBA Frequency Weighting C Weighting
OBA Max Spectrum At LMax
Overload 122.6 dB
Results
LAeq 58.8
LAE 88.4
EA 76.28893 µPa²h
EA8 2.441246 mPa²h
EA40 12.20623 mPa²h
LApeak (max) 2024-09-23 14:14:06 89.6 dB
LASmax 2024-09-23 14:07:21 69.7 dB
LASmin 2024-09-23 14:01:51 52.3 dB
Statistics
LCeq 73.6 dB LA2.00 65.0 dB
LAeq 58.8 dB LA8.00 62.8 dB
LCeq - LAeq 14.8 dB LA25.00 58.8 dB
LAIeq 60.3 dB LA50.00 56.3 dB
LAeq 58.8 dB LA66.60 55.4 dB
LAIeq - LAeq 1.4 dB LA90.00 53.6 dB
Overload Count 0
Overload Duration 0.0 s
LxT_0003099-20240923 140000-LxT_Data.430.ldbin
Ganddini 19631 Richardson RV, City of Riverside
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter /0 /1 /2 /3 /4 /5 /1 /6/1 /7 /8 □ /10 /1 /11 /12 /5 /8
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter /0 /1 /2 /3 /4 /2 /5 /6 /7
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter /0 /1 /2 /3 /4 /2 /5 /6 /7
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Noise Measurement
Field Data
Project Name: Richardson RV, City of Riverside Date:

Project #:

Noise Measurement #: Technician:

Weather: Settings: SLOW FAST
Temperature: 91 deg F Wind: 7 mph Humidity: 40% Terrain:

Start Time: 2:51 PM End Time: 3:06 PM Run Time:

Leq: 53.8 dB Traffic noise from the 4 vehicles passing NM3 microphone traveling along Lmax 68.4 dB Rhineland Drive just S of NM3.

L2 64.2 dB Traffic ambiance from the 91 Fwy (~1,000' NW of NM3). Noise from occasional air L8 55.2 dB traffic. Some bird noise. Noise from passing trains (2 tracks ~200' NW of NM3).

L25 50.9 dB
L50 49.8 dB
NOISE METER: CALIBRATOR:

MAKE: MAKE:

MODEL: MODEL:

SERIAL NUMBER: SERIAL NUMBER:

FACTORY CALIBRATION DATE:

FIELD CALIBRATION DATE:

September 23, 2024
Ian Edward Gallagher
Nearest Address or Cross Street: 10047 Rhineland Drive, Riverside, CA 92503 NM3 Run Time: 15 minutes
19631
Primary Noise Source:

Secondary Noise Sources:

Flat
Site Description (Type of Existing Land Use and any other notable features):

SoundTrack LXT Class 1
<5% cloud, sunshine. Sunset 6:44 PM
Larson Davis CAL 250
Measurement Site: Sidewalk just south of residence 10047 Rhinelander Drive.

Adjacent: Rhinelander Drive just S of NM3, 2 active train tracks (running NE-SW) ~200' NW of NM3, 91 Fwy (running NE-SW) ~1,000' NW of NM3. Residential in all directions.
7/10/20247/31/2024
9/23/2024
FACTORY CALIBRATION DATE:

Larson Davis
LXT1
3099
Larson Davis
CAL 250
2723
Apx-21
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Noise Measurement
Field Data
PHOTOS:

NM3 looking NNW across front yard of residence 10047 Rhinelander Drive, Riverside. NM3 looking SW across Rhinelander Drive towards Rhinelander Drive & Danube Way intersection ( ~90' ).

Apx-22
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Summary
File Name on Meter LxT_Data.431.s
File Name on PC
Serial Number 3099
Model SoundTrack LxT®
Firmware Version 2.404
User Ian Edward Gallagher
Location NM3 33°54'25.44"N 117°27'1.49"W
Job Description 15 minute noise measurement
Note
Measurement
Start 2024-09-23 14:51:15
Stop 2024-09-23 15:06:15
Duration 00:15:00.0
Run Time 00:15:00.0
Pause 00:00:00.0
Pre-Calibration 2024-09-23 14:50:45
Post-Calibration None
Overall Settings
RMS Weight A Weighting
Peak Weight A Weighting
Detector Slow
Preamplifier PRMLxT1L
Microphone Correction Off
Integration Method Linear
OBA Range Normal
OBA Bandwidth 1/1 and 1/3
OBA Frequency Weighting C Weighting
OBA Max Spectrum At LMax
Overload 122.7 dB
Results
LAeq 53.8
LAE 83.3
EA 23.9748 µPa²h
EA8 767.1936 µPa²h
EA40 3.835968 mPa²h
LApeak (max) 2024-09-23 14:54:25 83.3 dB
LASmax 2024-09-23 14:54:26 68.4 dB
LASmin 2024-09-23 14:58:31 46.7 dB
Statistics
LCeq 64.7 dB LA2.00 64.2 dB
LAeq 53.8 dB LA8.00 55.2 dB
LCeq - LAeq 10.9 dB LA25.00 50.9 dB
LAIeq 55.0 dB LA50.00 49.8 dB
LAeq 53.8 dB LA66.60 49.1 dB
LAIeq - LAeq 1.2 dB LA90.00 48.1 dB
Overload Count 0
Overload Duration 0.0 s
LxT_0003099-20240923 145115-LxT_Data.431.ldbin
Ganddini 19631 Richardson RV, City of Riverside
Apx-23
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter /0 /1 /2 /1 /3 □ /5 /6
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter /0 /1 /2 /3 /4 /2 /5 /6 /7
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter /0 /1 /2 /3 /4 /2 /5 /6 /7
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Apx-27
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Noise Measurement
Field Data
Project Name: Richardson RV, City of Riverside Date:

Project #:

Noise Measurement #: Technician:

Weather: Settings: SLOW FAST
Temperature: 60-93 deg F Wind: 1-9mph Humidity: 40-80% Terrain:

Start Time: 6:00 PM End Time: 6:00 PM Run Time:

Leq: 73.4 dB Noise from passing trains from the two tracks located ~35' SE of LTNM1 Lmax 101.4 dB microphone.

L2 84.4 dB Traffic ambiance from the 91 Fwy (~830' NW of LTNM1). Noise from occasional air L8 69.3 dB traffic. Some bird noise by day. Probable cricket noise at night.

L25 57.1 dB
L50 55.2 dB
NOISE METER: CALIBRATOR:

MAKE: MAKE:

MODEL: MODEL:

SERIAL NUMBER: SERIAL NUMBER:

FACTORY CALIBRATION DATE:

FIELD CALIBRATION DATE:
7/10/20247/31/2024
9/23/2024
FACTORY CALIBRATION DATE:

Larson Davis
LXT1
3099
Larson Davis
CAL 250
2723
Primary Noise Source:

Secondary Noise Sources:

Flat
Site Description (Type of Existing Land Use and any other notable features):

SoundTrack LXT Class 1
<5% cloud, sunshine by day. Sunset/rise 6:44PM/6:39AM
Larson Davis CAL 250
Measurement Site: On top of ~8' tall cinder block wall along southern side of project site (10030 Indiana Ave). Adjacent: Project site to north, commercial to NW and NE and 2 active train tracks (running NE-SW) ~35' SE with single-family residnetial further south of site. 91 Fwy (running NE-SW) ~830' NW.

September 23, 2024
Ian Edward Gallagher
Nearest Address or Cross Street: 9990 indiana Avenue, Riverside, CA 92503 LTNM1 Run Time: 24 hours
19631
Apx-28
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Noise Measurement
Field Data
PHOTOS:

LTNM1 looking SE towards S end of site area, 2 train tracks ~35' away from LTNM1 aerial view showing location of LTNM1 in relation to surrounding microphone on other side of ~8' tall cinderblock wall. area.

Apx-29
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Summary
File Name on Meter LxT_Data.432.s
File Name on PC
Serial Number 0003099
Model SoundTrack LxT®
Firmware Version 2.404
User Ian Edward Gallagher
Location LTNM1 33°54'25.44"N 117°27'1.49"W
Job Description 24 hour noise measurement ( 24 x 1 hours ) Note
Measurement
Start 2024-09-23 18:00:00
Stop 2024-09-24 18:00:00
Duration 24:00:00.0
Run Time 24:00:00.0
Pause 00:00:00.0
Pre-Calibration 2024-09-23 17:03:09
Post-Calibration None
Overall Settings
RMS Weight A Weighting
Peak Weight A Weighting
Detector Slow
Preamplifier PRMLxT1L
Microphone Correction Off
Integration Method Linear
OBA Range Normal
OBA Bandwidth 1/1 and 1/3
OBA Frequency Weighting A Weighting
OBA Max Spectrum Bin Max
Overload 122.6 dB
Results
LAeq 73.4
LAE 122.8
EA 210.858 mPa²h
EA8 70.286 mPa²h
EA40 351.430 mPa²h
LApeak (max) 2024-09-24 13:12:20 115.5 dB
LASmax 2024-09-24 04:16:44 101.4 dB
LASmin 2024-09-24 01:55:16 42.7 dB
Statistics
LCeq 82.1 dB LA2.00 84.4 dB
LAeq 73.4 dB LA8.00 69.3 dB
LCeq - LAeq 8.7 dB LA25.00 57.1 dB
LAIeq 75.0 dB LA50.00 55.2 dB
LAeq 73.4 dB LA90.00 51.4 dB
LAIeq - LAeq 1.5 dB LA99.00 47.7 dB
Overload Count 0
Overload Duration 0.0 s
LxT_0003099-20240923 180000-LxT_Data.432.ldbin
Ganddini 19631 Richardson RV, City of Riverside
Apx-30
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Record # Date Time Run Duration Run Time Pause LAeq LASmin LASmin Time LASmax LASmax Time LAS2.00 LAS8.00 LAS25.00 LAS50.00 LAS90.00 LAS99.00 1 2024-09-23 18:00:00 01:00:00.0 01:00:00.0 00:00:00.0 74.3 53.8 18:35:31 97.4 18:49:02 86.2 68.8 58.2 56.9 55.4 54.4 2 2024-09-23 19:00:00 01:00:00.0 01:00:00.0 00:00:00.0 74.8 51.3 19:57:34 94.9 19:18:04 86.0 78.7 57.2 55.9 53.6 52.2 3 2024-09-23 20:00:00 01:00:00.0 01:00:00.0 00:00:00.0 71.9 50.2 20:06:05 95.5 20:36:55 84.0 59.0 54.8 53.7 52.2 51.0 4 2024-09-23 21:00:00 01:00:00.0 01:00:00.0 00:00:00.0 72.9 52.8 21:59:56 90.3 21:02:34 84.0 78.0 62.1 59.0 56.2 54.3 5 2024-09-23 22:00:00 01:00:00.0 01:00:00.0 00:00:00.0 75.4 51.1 22:41:48 95.6 22:18:22 87.4 69.2 56.9 55.7 53.7 52.2 6 2024-09-23 23:00:00 01:00:00.0 01:00:00.0 00:00:00.0 71.3 50.4 23:58:09 92.9 23:14:21 83.9 58.5 56.4 55.4 53.7 51.7 7 2024-09-24 00:00:00 01:00:00.0 01:00:00.0 00:00:00.0 70.0 49.4 00:05:17 90.1 00:10:18 81.4 71.1 57.9 55.2 52.9 50.9 8 2024-09-24 01:00:00 01:00:00.0 01:00:00.0 00:00:00.0 75.1 42.7 01:55:16 95.2 01:39:30 84.9 80.6 70.8 53.5 48.3 45.5 9 2024-09-24 02:00:00 01:00:00.0 01:00:00.0 00:00:00.0 75.2 43.4 02:22:31 98.9 02:35:26 85.2 66.0 52.2 50.3 47.2 45.4 10 2024-09-24 03:00:00 01:00:00.0 01:00:00.0 00:00:00.0 75.6 46.5 03:17:07 98.4 03:37:26 85.6 80.9 55.6 54.1 51.1 48.3 11 2024-09-24 04:00:00 01:00:00.0 01:00:00.0 00:00:00.0 73.3 50.8 04:57:37 101.4 04:16:44 83.2 57.2 55.6 54.7 53.1 51.7 12 2024-09-24 05:00:00 01:00:00.0 01:00:00.0 00:00:00.0 68.3 48.4 05:08:43 94.1 05:14:18 80.0 56.1 54.3 53.1 50.8 49.3 13 2024-09-24 06:00:00 01:00:00.0 01:00:00.0 00:00:00.0 74.2 52.9 06:30:16 100.3 06:10:55 85.3 58.9 56.1 55.3 54.1 53.4 14 2024-09-24 07:00:00 01:00:00.0 01:00:00.0 00:00:00.0 59.0 47.1 07:45:32 84.1 07:37:45 60.2 56.2 54.2 51.5 49.0 47.8 15 2024-09-24 08:00:00 01:00:00.0 01:00:00.0 00:00:00.0 76.8 48.1 08:05:16 101.0 08:27:28 86.4 80.6 53.6 51.9 50.0 48.8 16 2024-09-24 09:00:00 01:00:00.0 01:00:00.0 00:00:00.0 73.1 50.6 09:37:39 95.4 09:56:30 84.1 76.1 58.7 56.5 53.2 51.5 17 2024-09-24 10:00:00 01:00:00.0 01:00:00.0 00:00:00.0 72.2 50.7 10:00:09 97.2 10:40:38 83.9 57.3 55.4 54.6 53.0 51.9 18 2024-09-24 11:00:00 01:00:00.0 01:00:00.0 00:00:00.0 72.7 51.9 11:01:02 99.7 11:49:55 83.5 59.7 56.5 55.4 53.8 52.7 19 2024-09-24 12:00:00 01:00:00.0 01:00:00.0 00:00:00.0 56.7 51.5 12:29:30 68.9 12:22:43 60.0 58.8 57.3 56.1 54.1 52.6 20 2024-09-24 13:00:00 01:00:00.0 01:00:00.0 00:00:00.0 74.0 51.0 13:50:28 97.8 13:12:24 84.2 74.0 56.8 55.6 53.6 52.3 21 2024-09-24 14:00:00 01:00:00.0 01:00:00.0 00:00:00.0 68.2 50.7 14:25:30 85.5 14:05:01 80.6 61.7 57.6 56.2 53.9 51.9 22 2024-09-24 15:00:00 01:00:00.0 01:00:00.0 00:00:00.0 74.1 52.5 15:15:16 98.1 15:25:55 83.2 73.8 57.7 56.3 54.5 53.1 23 2024-09-24 16:00:00 01:00:00.0 01:00:00.0 00:00:00.0 77.3 47.5 16:25:32 96.3 16:29:05 87.1 84.1 57.5 54.1 50.5 48.7 24 2024-09-24 17:00:00 01:00:00.0 01:00:00.0 00:00:00.0 68.8 53.3 17:30:40 92.3 17:27:20 78.2 64.5 58.1 57.1 55.5 54.2 Apx-31
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter /0 /1 /2 /3 /4 /5 /1 /6/1 /7 /8 □ /10 /1 /11 /12 /5 /8
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Apx-32
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter /0 /1 /2 /1 /3 □ /5 /6
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter /0 /1 /2 /3 /4 /2 /5 /6 /7
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter /0 /1 /2 /3 /4 /2 /5 /6 /7
/8 /9 /10 □ /12 /13 /14 □ /15 /16/17 /5
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Apx-35
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

APPENDIX D

CONSTRUCTION NOISE MODEL WORKSHEETS
Apx-36
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Construction Phase Equipment Item # of Items Item Lmax at 50 feet, dBA1, 2 Distance to Receptor3 Item Usage Percent Usage Factor Dist. Correction dB Usage Adj. dB Receptor Item Lmax, dBA Receptor Item Leq, dBA Rubber Tired Dozer 1 82 371 40 0.40 -17.4 -4.0 64.6 60.6 Grader 1 85 371 40 0.40 -17.4 -4.0 67.6 63.6
Log Sum 65.4
Forklifts 2
1 49 631 40 0.40 -22.0 -4.0 27.0 23.0
Drills/Pneumatic Equipment 1 70 631 50 0.50 -22.0 -3.0 48.0 45.0 Welders 1 59 631 40 0.40 -22.0 -4.0 37.0 33.0
Log Sum 45.3
Cement and Mortar Mixers 1 79 371 40 0.40 -17.4 -4.0 61.6 57.6 Pavers 1 77 371 50 0.50 -17.4 -3.0 59.6 56.6
Paving Equipment 1 85 371 20 0.20 -17.4 -7.0 67.6 60.6
Rollers 1 80 371 20 0.20 -17.4 -7.0 62.6 55.6
Log Sum 64.1
Air Compressors 1 78 371 40 0.40 -17.4 -4.0 60.6 56.6
Log Sum 56.6
Notes:
(1) Source: Referenced noise levels from the Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual (September 2018) and the FHWA Roadway Construction Noise Model User's Guide (January 2006). (2) Source: SoundPLAN reference list.
(3) Distance to receptor calculated from center of site. Construction noise projected from the center of the project site to nearest sensitive use (structure). (4) Reference level takes into consideration that renovations to the existing building are interior only. Therefore, reference levels for the equipment used during the building renovation phase include a reduction of 15 dB.

Grading
Receptor - Residential to South (10047 Rhinelander Drive, Riverside) Architectural Coating
Building Renovation 4
Paving
Apx-37
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Construction Phase Equipment Item # of Items Item Lmax at 50 feet, dBA1, 2 Distance to Receptor3 Item Usage Percent Usage Factor Dist. Correction dB Usage Adj. dB Receptor Item Lmax, dBA Receptor Item Leq, dBA Rubber Tired Dozer 1 82 39 40 0.40 2.2 -4.0 84.2 80.2
Grader 1 85 39 40 0.40 2.2 -4.0 87.2 83.2
Log Sum 84.9
Forklifts 2
1 49 31 40 0.40 4.2 -4.0 53.2 49.2
Drills/Pneumatic Equipment 1 70 31 50 0.50 4.2 -3.0 74.2 71.1 Welders 1 59 31 40 0.40 4.2 -4.0 63.2 59.2
Log Sum 71.4
Cement and Mortar Mixers 1 79 39 40 0.40 2.2 -4.0 81.2 77.2 Pavers 1 77 39 50 0.50 2.2 -3.0 79.2 76.1
Paving Equipment 1 85 39 20 0.20 2.2 -7.0 87.2 80.2
Rollers 1 80 39 20 0.20 2.2 -7.0 82.2 75.2
Log Sum 83.6
Air Compressors 1 78 39 40 0.40 2.2 -4.0 80.2 76.2
Log Sum 76.2
Notes:
(1) Source: Referenced noise levels from the Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual (September 2018) and the FHWA Roadway Construction Noise Model User's Guide (January 2006). (2) Source: SoundPLAN reference list.
(3) Distance to receptor calculated from center of site. Construction noise projected from the center of the project site to nearest sensitive use (structure). (4) Reference level takes into consideration that renovations to the existing building are interior only. Therefore, reference levels for the equipment used during the building renovation phase include a reduction of 15 dB.

Architectural Coating
Receptor - Commercial to West (Tyler Mall Mini Storage, 10090 Indiana Avenue, Riverside) Grading
Building Renovation 4
Paving
Apx-38
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Construction Phase Equipment Item # of Items Item Lmax at 50 feet, dBA1, 2 Distance to Receptor3 Item Usage Percent Usage Factor Dist. Correction dB Usage Adj. dB Receptor Item Lmax, dBA Receptor Item Leq, dBA Rubber Tired Dozer 1 82 398 40 0.40 -18.0 -4.0 64.0 60.0 Grader 1 85 398 40 0.40 -18.0 -4.0 67.0 63.0
Log Sum 64.8
Forklifts 2
1 49 137 40 0.40 -8.8 -4.0 40.2 36.3
Drills/Pneumatic Equipment 1 70 137 50 0.50 -8.8 -3.0 61.2 58.2 Welders 1 59 137 40 0.40 -8.8 -4.0 50.2 46.3
Log Sum 58.5
Cement and Mortar Mixers 1 79 398 40 0.40 -18.0 -4.0 61.0 57.0 Pavers 1 77 398 50 0.50 -18.0 -3.0 59.0 56.0
Paving Equipment 1 85 398 20 0.20 -18.0 -7.0 67.0 60.0
Rollers 1 80 398 20 0.20 -18.0 -7.0 62.0 55.0
Log Sum 63.4
Air Compressors 1 78 398 40 0.40 -18.0 -4.0 60.0 56.0
Log Sum 56.0
Notes:
(1) Source: Referenced noise levels from the Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual (September 2018) and the FHWA Roadway Construction Noise Model User's Guide (January 2006). (2) Source: SoundPLAN reference list.
(3) Distance to receptor calculated from center of site. Construction noise projected from the center of the project site to nearest sensitive use (structure). (4) Reference level takes into consideration that renovations to the existing building are interior only. Therefore, reference levels for the equipment used during the building renovation phase include a reduction of 15 dB.

Architectural Coating
Receptor - Commercial to North (10031 Indiana Avenue, Riverside) Grading
Building Renovation 4
Paving
Apx-39
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Construction Phase Equipment Item # of Items Item Lmax at 50 feet, dBA1, 2 Distance to Receptor3 Item Usage Percent Usage Factor Dist. Correction dB Usage Adj. dB Receptor Item Lmax, dBA Receptor Item Leq, dBA Rubber Tired Dozer 1 82 39 40 0.40 2.2 -4.0 84.2 80.2
Grader 1 85 39 40 0.40 2.2 -4.0 87.2 83.2
Log Sum 84.9
Forklifts 2
1 49 47 40 0.40 0.5 -4.0 49.5 45.6
Drills/Pneumatic Equipment 1 70 47 50 0.50 0.5 -3.0 70.5 67.5 Welders 1 59 47 40 0.40 0.5 -4.0 59.5 55.6
Log Sum 67.8
Cement and Mortar Mixers 1 79 39 40 0.40 2.2 -4.0 81.2 77.2 Pavers 1 77 39 50 0.50 2.2 -3.0 79.2 76.1
Paving Equipment 1 85 39 20 0.20 2.2 -7.0 87.2 80.2
Rollers 1 80 39 20 0.20 2.2 -7.0 82.2 75.2
Log Sum 83.6
Air Compressors 1 78 39 40 0.40 2.2 -4.0 80.2 76.2
Log Sum 76.2
Notes:
(1) Source: Referenced noise levels from the Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual (September 2018) and the FHWA Roadway Construction Noise Model User's Guide (January 2006). (2) Source: SoundPLAN reference list.
(3) Distance to receptor calculated from center of site. Construction noise projected from the center of the project site to nearest sensitive use (structure). (4) Reference level takes into consideration that renovations to the existing building are interior only. Therefore, reference levels for the equipment used during the building renovation phase include a reduction of 15 dB.

Architectural Coating
Receptor - Commercial to East (10020 Indiana Avenue, Riverside) Grading
Building Renovation 4
Paving
Apx-40
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

APPENDIX E

SOUNDPLAN WORKSHEETS
Apx-41
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Traffic values ControlConstr.Affect. Gradient
Station ADT Vehicles type Vehicle name day night Speed deviceSpeedveh. Road surface Min / Max km Veh/24h Veh/h Veh/h km/h km/h % %
1 Traffic direction: In entry direction
0+000 - - - - - -
0+000 - - - - - -
2 Traffic direction: In entry direction
0+000 24 Total
Automobiles
Medium trucks
Heavy trucks
Buses
Motorcycles
Auxiliary vehicle
-
-
-
-
-
-
-
1 -
-
1 -
-
-
1 -
-
1 -
-
-
-
-
-
32 -
-
-
none - - Average (of DGAC and PCC)0.0
Noise emissions of road traffic
GANDDINI GROUP, INC. 555 Parkcenter Drive, Suite 225 Santa Ana CA 92705 USA Apx-42
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Level Frequency spectrum [dB(A)] Corrections
Source name Reference Day 31 63 125 250 500 1 2 4 8 16 Cwall CI CT dB(A) Hz Hz Hz Hz Hz kHz kHz kHz kHz kHz dB dB dB
HVAC Lw/unit - 20.0 24.0 37.0 42.0 36.0 47.0 49.0 48.0 50.0 50.0 - - - Noise emissions of industry sources
GANDDINI GROUP, INC. 555 Parkcenter Drive, Suite 225 Santa Ana CA 92705 USA Apx-43
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Movements Separated Lw,ref
Name Parking lot type Size per hour Road surface method Day dB(A)
1 Rest stop (Trucks) 7 Parking bays 0.100 Asphaltic driving lanes no 85.5 1 Rest stop (Trucks) 38 Parking bays 0.100 Asphaltic driving lanes no 96.5 2 Visitors and staff 2 Parking bays 2.000 Asphaltic driving lanes no 66.0 Noise emissions of parking lot traffic
GANDDINI GROUP, INC. 555 Parkcenter Drive, Suite 225 Santa Ana CA 92705 USA Apx-44
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Building Limit Level w/o NP Level w NP Difference Conflict No. Receiver name side Floor Day Day Day Day Day
dB(A) dB(A) dB(A) dB dB
1 1 - EG - 34.5 0.0 -34.5 -
2 2 - EG - 44.8 0.0 -44.8 -
3 3 - EG - 33.6 0.0 -33.6 -
4 4 - EG - 46.5 0.0 -46.5 -
Receiver list
GANDDINI GROUP, INC. 555 Parkcenter Drive, Suite 225 Santa Ana CA 92705 USA Apx-45
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

APPENDIX F

FHWA TRAFFIC NOISE MODEL WORKSHEETS

Apx-46
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter :Id ADT 9924
:Road
Motor-Vehicle
Type
Daytime %
(7 AM - 7 PM)
Evening %
(7 PM - 10 PM)
Night %
(10 PM - 7 AM)
Total % of
Traffic Flow Speed 40
Automobiles 75.54 14.02 10.43 92.00 Distance 44
Medium Trucks 48.00 2.00 50.00 3.00 Left Angle -90
Heavy Trucks 48.00 2.00 50.00 5.00 Right Angle 90
Autos Medium Trucks Heavy Trucks Autos Medium Trucks Heavy Trucks Autos Medium Trucks Heavy Trucks

INPUT PARAMETERS
Vehicles per hour 574.74 11.91 19.85 426.68 1.98 3.31 105.81 16.54 27.57 Speed in MPH 40.00 40.00 40.00 40.00 40.00 40.00 40.00 40.00 40.00 Left angle -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 Right angle 90.00 90.00 90.00 90.00 90.00 90.00 90.00 90.00 90.00

NOISE CALCULATIONS
Reference levels 67.36 76.31 81.16 67.36 76.31 81.16 67.36 76.31 81.16

ADJUSTMENTS
Flow 21.27 4.43 6.65 19.97 -3.35 -1.13 13.92 5.86 8.08
Distance 0.49 0.49 0.49 0.49 0.49 0.49 0.49 0.49 0.49
Finite Roadway 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Barrier 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Grade 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Constant -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 LEQ 64.11 56.23 63.30 62.82 48.45 55.51 56.76 57.66 64.72 DAY LEQ 67.10 EVENING LEQ 63.69 NIGHT LEQ 66.05
F CNEL 72.69 Day hour 89.00
DAY LEQ 67.10 Absorptive? no
Use hour? no
GRADE dB 0.00
Notes:
(1) FHWA Traffic Noise Prediction Model FHWA-RD-77-108
(2) Vehicle percentages based on County of Riverside heavy truck mix.

Noise Parameters
In the vicinity of the project site
Existing Traffic Noise
1 Vehicle Distribution (Heavy Truck Mix)
Indiana Avenue
Daytime Evening Night
:Segment
Apx-47
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter :Id ADT 9928
:Road
Motor-Vehicle
Type
Daytime %
(7 AM - 7 PM)
Evening %
(7 PM - 10 PM)
Night %
(10 PM - 7 AM)
Total % of
Traffic Flow Speed 40
Automobiles 75.54 14.02 10.43 92.00 Distance 44
Medium Trucks 48.00 2.00 50.00 3.00 Left Angle -90
Heavy Trucks 48.00 2.00 50.00 5.00 Right Angle 90
Autos Medium Trucks Heavy Trucks Autos Medium Trucks Heavy Trucks Autos Medium Trucks Heavy Trucks

INPUT PARAMETERS
Vehicles per hour 574.97 11.91 19.86 426.85 1.99 3.31 105.85 16.55 27.58 Speed in MPH 40.00 40.00 40.00 40.00 40.00 40.00 40.00 40.00 40.00 Left angle -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 Right angle 90.00 90.00 90.00 90.00 90.00 90.00 90.00 90.00 90.00

NOISE CALCULATIONS
Reference levels 67.36 76.31 81.16 67.36 76.31 81.16 67.36 76.31 81.16

ADJUSTMENTS
Flow 21.27 4.43 6.65 19.98 -3.35 -1.13 13.92 5.86 8.08
Distance 0.49 0.49 0.49 0.49 0.49 0.49 0.49 0.49 0.49
Finite Roadway 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Barrier 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Grade 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Constant -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 LEQ 64.12 56.23 63.30 62.82 48.45 55.52 56.77 57.66 64.72 DAY LEQ 67.11 EVENING LEQ 63.69 NIGHT LEQ 66.05
CNEL 72.69 Day hour 89.00
DAY LEQ 67.11 Absorptive? no
Use hour? no
GRADE dB 0.00
Notes:
(1) FHWA Traffic Noise Prediction Model FHWA-RD-77-108
(2) Vehicle percentages based on County of Riverside heavy truck mix.

Existing Plus Project Traffic Noise
Vehicle Distribution (Heavy Truck Mix)
Daytime Evening Night
Noise Parameters
1 Indiana Avenue
In the vicinity of the project site :Segment
Apx-48
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

APPENDIX G

GROUNDBORNE VIBRATION WORKSHEETS

Apx-49
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Project: 19697 Moreno Beach and Alessandro Multifamily Date: 9/23/24 Source: Vibratory Roller
Scenario: Unmitigated
Location:

Address: 10031 Indiana Avenue, Riverside
PPV = PPVref(25/D)^n (in/sec)
Equipment =
Type
PPVref = 0.21 Reference PPV (in/sec) at 25 ft.

D = 95.00 Distance from Equipment to Receiver (ft)
n = 1.50 Vibration attenuation rate through the ground
PPV = 0.028 IN/SEC
Note: Based on reference equations from Vibration Guidance Manual, California Department of Transportation, 2006, pgs 38-43.

RESULTS

OUTPUT IN BLUE

GROUNDBORNE VIBRATION ANALYSIS
Commercial to North
INPUT
1 Vibratory Roller INPUT SECTION IN GREEN
Apx-50
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Project: 19697 Moreno Beach and Alessandro Multifamily Date: 9/23/24 Source: Large Bulldozer
Scenario: Unmitigated
Location:

Address: 10031 Indiana Avenue, Riverside
PPV = PPVref(25/D)^n (in/sec)
Equipment =
Type
PPVref = 0.089 Reference PPV (in/sec) at 25 ft.

D = 95.00 Distance from Equipment to Receiver (ft)
n = 1.50 Vibration attenuation rate through the ground
PPV = 0.012 IN/SEC OUTPUT IN BLUE

RESULTS
2 Large Bulldozer

GROUNDBORNE VIBRATION ANALYSIS
Commercial to North
INPUT

INPUT SECTION IN GREEN
Note: Based on reference equations from Vibration Guidance Manual, California Department of Transportation, 2006, pgs 38-43.

Apx-51
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Project: 19697 Moreno Beach and Alessandro Multifamily Date: 9/23/24 Source: Vibratory Roller
Scenario: Unmitigated
Location:

Address: 10020 Indiana Avenue, Riverside
PPV = PPVref(25/D)^n (in/sec)
Equipment =
Type
PPVref = 0.21 Reference PPV (in/sec) at 25 ft.

D = 45.00 Distance from Equipment to Receiver (ft)
n = 1.50 Vibration attenuation rate through the ground
PPV = 0.087 IN/SEC
Note: Based on reference equations from Vibration Guidance Manual, California Department of Transportation, 2006, pgs 38-43.

RESULTS

OUTPUT IN BLUE

GROUNDBORNE VIBRATION ANALYSIS
Commercial to East
INPUT
1 Vibratory Roller INPUT SECTION IN GREEN
Apx-52
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Project: 19697 Moreno Beach and Alessandro Multifamily Date: 9/23/24 Source: Large Bulldozer
Scenario: Unmitigated
Location:

Address: 10020 Indiana Avenue, Riverside
PPV = PPVref(25/D)^n (in/sec)
Equipment =
Type
PPVref = 0.089 Reference PPV (in/sec) at 25 ft.

D = 45.00 Distance from Equipment to Receiver (ft)
n = 1.50 Vibration attenuation rate through the ground
PPV = 0.037 IN/SEC
Note: Based on reference equations from Vibration Guidance Manual, California Department of Transportation, 2006, pgs 38-43.

RESULTS

OUTPUT IN BLUE

GROUNDBORNE VIBRATION ANALYSIS
Commercial to East
INPUT
2 Large Bulldozer INPUT SECTION IN GREEN
Apx-53
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Project: 19697 Moreno Beach and Alessandro Multifamily Date: 9/23/24 Source: Vibratory Roller
Scenario: Unmitigated
Location:

Address: 10047 Rhinelander Drive, Riverside
PPV = PPVref(25/D)^n (in/sec)
Equipment =
Type
PPVref = 0.21 Reference PPV (in/sec) at 25 ft.

D = 163.00 Distance from Equipment to Receiver (ft)
n = 1.50 Vibration attenuation rate through the ground
PPV = 0.013 IN/SEC
Note: Based on reference equations from Vibration Guidance Manual, California Department of Transportation, 2006, pgs 38-43.

RESULTS

OUTPUT IN BLUE

GROUNDBORNE VIBRATION ANALYSIS
Residential to South
INPUT
1 Vibratory Roller INPUT SECTION IN GREEN
Apx-54
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Project: 19697 Moreno Beach and Alessandro Multifamily Date: 9/23/24 Source: Large Bulldozer
Scenario: Unmitigated
Location:

Address: 10047 Rhinelander Drive, Riverside
PPV = PPVref(25/D)^n (in/sec)
Equipment =
Type
PPVref = 0.089 Reference PPV (in/sec) at 25 ft.

D = 163.00 Distance from Equipment to Receiver (ft)
n = 1.50 Vibration attenuation rate through the ground
PPV = 0.005 IN/SEC
Note: Based on reference equations from Vibration Guidance Manual, California Department of Transportation, 2006, pgs 38-43.

RESULTS

OUTPUT IN BLUE

GROUNDBORNE VIBRATION ANALYSIS
Residential to South
INPUT
2 Large Bulldozer INPUT SECTION IN GREEN
Apx-55
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Construction Annoyance Vibration Calculations
Source: Federal Transit Administration (FTA), Transit Noise and Vibration Impact Assessment Manual (September 2018).

Eq. 7-3: Lvdistance = Lvref - 30log (D/25)
Lvdistance = the rms velocity level adjsuted for distance, VdB Lvref = the source reference vibration level at 25 feet, VdB D = distance from the equipment to th receiver, ft.

Large Bulldozer:

Residential to South: Lvdistance = 87 - 30 log (163/25) = 65.57 VdB Under Threshold Mitigation Distance: 87 - 30 log (80/25) = 71.85 VdB Vibratory Roller:

Residential to South: Lvdistance = 94 - 30 log (163/25) = 69.57 VdB Under Threshold Mitigation Distance: 94 - 30 log (136/25) = 71.93 VdB Apx-56
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter GANDDINI GROUP INC.

714.795.3100 | ganddini.com
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

EXHIBIT B
PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter transportation ■ noise ■ air quality | GANDDINI GROUP 555 Parkcenter Drive, Suite 225, Santa Ana, CA 92705
(714) 795-3100 | ganddini.com

April 27, 2023

Mr. Steve Richardson
RICHARDSON’S RV
10717 Indiana Avenue
Riverside, California 92503

RE: Richardson RV Storage Air Quality Technical Memorandum Project No. 19631

Dear Mr. Richardson:

Ganddini Group, Inc. is pleased to provide this Air Quality Technical Memorandum for the Richardson RV Storage project. The 1.0-acre project site is located at 10030 Indiana Avenue , in the City of Riverside, California. The proposed project is currently developed with an existing 1,351 square foot residence. A project location map, showing the project’s location, is provided on Figure 1. A glossary is provided in Appendix A to assist the reader with technical terms related to this air quality analysis.

PROJECT DESCRIPTION

The project consists of a Minor Conditional Use Permit and a Design Review for an Outdoor Storage Yard and the conversion of an existing 1,351 square foot residence into an office for Richardson’s RV storage. The development consists of:

▪ Paving approximately 33,763 square feet of the lot for outdoor storage purposes; ▪ Striping forty-five 9 x 35-foot stalls for storage of vehicles; ▪ Conversion of the existing residence into an office;
▪ Construction of fences and walls; and
▪ Landscaping

The business will operate Monday through Friday from 8:00 AM to 5:00 PM with four employees on -site.

Recreational vehicles and trailers will be transported to and from the storage yard as required for inventory control. Plans indicate the storage yard will be secured and screened as follows:

▪ A new 6-foot-high opaque tubular steel fence and opaque rolling gate on the north side of the storage yard;
▪ A combination of an existing 5 -foot-high decorative stucco perimeter wall and ne w 10 -foot-high decorative opaque metal fence along the east side property line; ▪ A combination of an existing 6-foot-high CMU wall and new landscaping along the south property line, adjacent to the AT&SF Railroad; and
▪ An existing self-storage building along the west side property line.

No sales of recreational vehicles, maintenance, washing or fueling are proposed to take place on -site. The project site plan is shown on Figure 2. Table 1 shows the SCAQMD Air Quality Significance Thresholds.

PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Construction (lbs/day) Operation (lbs/day)
100 55
75 55
150 150
55 55
150 150
550 550
3 3
Odor
GHG
Notes:

Source: http://www.aqmd.gov/home/rules-compliance/ceqa/air-quality-analysis-handbook (1) Source: South Coast AQMD CEQA Handbook (South Coast AQMD, 1993) (2) Ambient air quality thresholds for criteria pollutants based on South Coast AQMD Rule 1303, Table A-2 unless otherwise stated. (3) Ambient air quality threshold based on South Coast AQMD Rule 403.

PM10
24-hour average 10.4 µg/m^3 (construction)3 & 2.5 ug/m^3 (operation) NO2
1-hour average
South Coast AQMD is in attainment; project is significant if it causes or contributes to an exceedance of the following attainment standards:

0.18 ppm (state)

0.03 ppm (state) & 0.0534 ppm (federal)annual arithmetic mean 25 µg/m^3 (state)

0.25 ppm (state) & 0.075 ppm (federal – 99th percentile) SO2
1-hour average
annual average
24-hour average
24-hour average

1.0 ug/m^3
PM2.5
Rolling 3-month average

10.4 µg/m^3 (construction)3 & 2.5 µg/m^3 (operation)

0.04 ppm (state)
9 ppm (state/federal)

0.15 µg/m^3 (federal)
South Coast AQMD is in attainment; project is significant if it causes or contributes to an exceedance of the following attainment standards:
20 ppm (state) & 35 ppm (federal)1-hour average
8-hour average
CO

1.5 µg/m^3 (state)
Lead
3-day average
Sulfate
24-hour average
PM10
Ambient Air Quality Standards for Criteria Pollutants2
Maximum Incremental Cancer Risk ≥ 10 in 1 million
Cancer Burden > 0.5 excess cancer cases (in areas ≥ 1 in 1 million) Chronic & Acute Hazard Index > 1.0 (project increment)
PM2.5
SOx
CO
Lead
Toxic Air Contaminants (TACs), Odor and GHG Thresholds
TACs (including carginogens and non-
carcinogens)
Project creates an odor nuisance pursuant to South Coast AQMD Rule 402 10,000 MT/yr CO2e for industrial facilities
VOC
SCAQMD Air Quality Significance Thresholds
Table 1
Mass Daily Thresholds1
Pollutant
NOx
Richardson RV Storage
Air QualityTechnical Memorandum
19631
2 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Figure 1
Project Location Map
Richardson RV Storage
Air Quality Technical Memorandum
19631
N
91 Site
INDIA
NA AVE
TYLER
ST

HARRISON
ST
3 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter Figure 2
Site Plan
Richardson RV Storage
Air Quality Technical Memorandum
19631
N
4 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

Mr. Steve Richardson
RICHARDSON’S RV
April 27, 2023

Richardson RV Storage
Air Quality Technical Memorandum
19631

LONG-TERM AIR QUALITY OPERATIONAL IMPACTS

An analysis of the potential long-term air quality impacts due to operations of the proposed project has been completed. The operations -related criteria air quality impacts created by the proposed project have been analyzed through use of the CalEEMod model. The operating emissions were based on the year 2023, which is the anticipated opening year for th e proposed project . CalEEMod output is shown in Appendix B. The CalEEMod analyzes operational emissions from area sources, energy usage, and mobile sources, which are discussed below.

METHODOLOGY

Mobile Sources

Mobile sources include emissions from the additional vehicle miles generated from the proposed project. The vehicle trips associated with the proposed project have been analyzed by inputting the estimated project- generated vehicular trips (trip generation rate) provided by the project applicant into the CalEEMod Model.

As stated by the project applicant, the proposed use is for a consumer RV and travel trailer storage yard which has a low associated vehicle trip rate. In addition, the project’s associated retail sales yard is located at 10717 Indiana Avenue, which is less than a mile from the project site, and the vehicle trips associated with the proposed project occur between the project site and this location. Based on these project operational details, it is assumed that the proposed project would have up to four vehicle trips per day. Therefore, the proposed project was modeled with a trip generation rate of 2.96 trips per thousand square foot per day.1 The program then applies the emission factors for each trip which is provided by the EMFAC2021 model to determine the vehicular traffic pollutant emissions. To be conservative, the CalEEMod default trip lengths were used in this analysis.

Area Sources

Area sources include emissions from hearths, consumer products, landscape equipment and architectural coatings. No changes were made to the default area source parameters.

Energy Usage

Energy usage includes emissions from the generation of electricity and natural gas used on-site. No changes were made to the default energy usage parameters.

OPERATIONAL-RELATED REGIONAL AIR QUALITY IMPACTS

The maximum daily pollutant emissions created from the proposed project’s long-term operations have been calculated and are summarized below in Table 2. Table 2 shows that none of the analyzed criteria pollutants would exceed the regional emissions thresholds. Therefore, a less than significant regional air quality impact would occur from the operation of the proposed project.

1 The project’s office building is 1,351 square feet; therefore, 4 trips per 1.351 thousand square feet results in 2.96 trips per thousand square foot per day.
5 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter ROG NOx CO SO2 PM10 PM2.5
Maximum Daily Emissions 0.07 0.03 0.26 0.01 0.02 0.01
SCAQMD Thresholds 55 55 550 150 150 55
Exceeds Threshold? No No No No No No
Notes:

Source: CalEEMod Version 2022.1.1.8; the higher of either summer or winter emissions.

Pollutant Emissions (pounds/day)
Regional Operational Pollutant Emissions
Table 2
Activity
Richardson RV Storage
Air QualityTechnical Memorandum
19631
6 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

Mr. Steve Richardson
RICHARDSON’S RV
April 27, 2023

Richardson RV Storage
Air Quality Technical Memorandum
19631

OPERATIONS-RELATED LOCAL AIR QUALITY IMPACTS

Project-related air emissions may have the potential to exceed the State and Federal air quality standards in the project vicinity, even though these pollutant emissions may not be significant enough to create a regional impact to the South Coast Air Basin. The proposed project has been analyzed for the potential local CO emission impacts from the project -generated vehicular trips and from the potential local air quality impacts from on-site operations. The following analysis analyzes the vehicular CO emissions, local impacts from on - site operations per SCAQMD LST methodology, and odor impacts.

Local CO Emission Impacts from Project-Generated Vehicular Trips

CO is the pollutant of major concern along roadways because the most notable source of CO is motor vehicles.

For this reason, CO concentrations are usually indicative of the local air quality generated by a roadway network and are used as an indicator of potential l ocal air quality impacts. Local air quality impacts can be assessed by comparing future without and with project CO levels to the State and Federal CO standards which were presented above.

To determine if the proposed project could cause emission levels i n excess of the CO standards discussed above, a sensitivity analysis is typically conducted to determine the potential for CO “hot spots” at a number of intersections in the general project vicinity. Because of reduced speeds and vehicle queuing, “hot spot s” potentially can occur at high traffic volume intersections with a Level of Service E or worse.

The analysis prepared for CO attainment in the South Coast Air Basin by the SCAQMD can be used to assist in evaluating the potential for CO exceedances in the South Coast Air Basin. CO attainment was thoroughly analyzed as part of the SCAQMD's 2003 Air Quality Management Plan (2003 AQMP) and the 1992 Federal Attainment Plan for Carbon Monoxide (1992 CO Plan). As discussed in the 1992 CO Plan, peak carbon monoxide concentrations in the South Coast Air Basin are due to unusual meteorological and topographical conditions, and not due to the impact of particular intersections. Considering the region’s unique meteorological conditions and the increasingly stringent CO emissions standards, CO modeling was performed as part of 1992 CO Plan and subsequent plan updates and air quality management plans. In the 1992 CO Plan, a CO hot spot analysis was conducted for four busy intersections in Los Angeles at the peak morning and afternoon time periods. The intersections evaluated included: South Long Beach Boulevard and Imperial Highway (Lynwood); Wilshire Boulevard and Veteran Avenue (Westwood); Sunset Boulevard and Highland Avenue (Hollywood); and La Cienega Boulevard and Century Boulevard (Inglewood). These analyses did not predict a violation of CO standards. The busiest intersection evaluated was that at Wilshire Boulevard and Veteran Avenue, which has a daily traffic volume of approximately 100,000 vehicles per day. The Los Angeles County Metropolitan Transportation Authority evaluated the Level of Service in the vicinity of the Wilshire Boulevard/Veteran Avenue intersection and found it to be Level of Service E during the morning peak hour and Level of Service F during the afternoon peak hour.

Per the project applicant, the proposed project would generate a maximum of approximately 4 daily vehicle trips. The 1992 Federal Attainment Plan for Carbon Monoxide (1992 CO Plan) showed that an intersection which has a daily traffic volume of approximately 100,000 vehicles per day would not violate the CO standard.

Therefore, as the project generates up to only 4 vehicle trips per day, the intersection volume will fall far short of 100,000 vehicles per day, no CO “hot spot” modeli ng was performed, and no significant long -term air quality impact is anticipated to local air quality with the on-going use of the proposed project.

7 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

Mr. Steve Richardson
RICHARDSON’S RV
April 27, 2023

Richardson RV Storage
Air Quality Technical Memorandum
19631
Local Air Quality Impacts from On-Site Operations

Project-related air emissions from on-site sources such as architectural coatings, landscaping equipment, on- site usage of natural gas appliances as well as the operation of vehicles on -site may have the potential to exceed the State and Federal air quality standards in the project vicinity, even though thes e pollutant emissions may not be significant enough to create a regional impact to the South Coast Air Basin. The nearest sensitive receptors that may be impacted by the proposed project are the existing single-family residential land uses located approximately 145 feet (~44 meters) to the south (along Rhinelander Drive) and 465 feet (~142 meters) to the northwest (along the northern side of Diana Avenue) of the project.

The local air quality emissions from on-site operations were analyzed according to the methodology described in Localized Significance Threshold Methodology , prepared by SCAQMD, revised July 2008. The Look -up Tables were developed by the SCAQMD in order to readily determine if the daily e missions of CO, NOx, PM10, and PM2.5 from the proposed project could result in a significant impact to the local air quality. Per SCAQMD staff, the 5-acre Look-up Table, which is the largest site available, can be used as a conservative screening analysis for on-site operational emissions to determine whether more-detailed dispersion modeling would be necessary. The proposed project was analyzed based on the Metropolitan Riverside County source receptor area (SRA) 23 and, as the project site is approximately one-acre, used the thresholds for a one-acre project site.

Table 3 shows the on-site emissions from the CalEEMod model that includes natural gas usage, landscape maintenance equipment, and vehicles operating on -site and the calculated emissions threshol ds. Per LST methodology, mobile emissions include only on-site sources which equate to approximately 10 percent of the project-related new mobile sources.2 The data provided in Table 3 shows that the on-going operations of the proposed project would not exceed SCAQMD local operational thresholds of significance discussed above.

Therefore, the on-going operations of the proposed project would create a less than significant operations- related impact to local air quality due to on-site emissions and no mitigation would be required.

2 The project site is approximately 0.11 miles in length at its longest point; therefore the on -site mobile source emissions represent approximately 1/55th of the shortest CalEEMod default distance of 6.11 miles. Therefore, to be conservative, 1/10th the dis tance (dividing the mobile source emissions by 10) was used to represent the portion of the overall mobile source emissions that would occur on-site.
8 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter NOx CO PM10 PM2.5

0.01 0.06 0.01 0.01

0.01 0.01 0.01 0.01

0.00 0.02 0.00 0.00

0.02 0.09 0.01 0.01
118 602 1 1
No No No No
Notes:
(1)
(2)
(3) Energy usage consists of emissions from on-site natural gas usage. (4)
(5) The nearest sensitive receptors are the existing single-family residential land uses located approximately 145 feet (~44 meters) to the south and 465 feet (~142 meters) to the northwest of the project site; therefore, to be conservative, the 25 meter threshold was used.

Source: Calculated from CalEEMod and SCAQMD’s Mass Rate Look-up Tables for 1 acre in SRA 23.

Area sources consist of emissions from consumer products, architectural coatings, and landscaping equipment.

On-site vehicular emissions based on 1/10 of the gross vehicular emissions and road dust.

Energy Usage3
Vehicle Emissions4
Total Emissions
SCAQMD Thresholds5
Exceeds Threshold?
Area Sources2
Table 3
Local Operational Emissions at the Nearest Receptors
On-Site Pollutant Emissions (pounds/day)1
On-Site Emission Source
Richardson RV Storage
Air QualityTechnical Memorandum
19631
9 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

Mr. Steve Richardson
RICHARDSON’S RV
April 27, 2023

Richardson RV Storage
Air Quality Technical Memorandum
19631

CONCLUSIONS

As discussed above, the proposed RV storage project would not exceed SCAQMD thresholds for local and regional operational emissions . Therefore, this technical memorandum found that air quality -related operational impacts are considered to be less than significant. No further analysis or mitigation is required.

It has been a pleasure to service your needs regarding the Richardson RV Storage project. Should you have any questions or if we can be of further assistance, please do not hesitate to call at (714) 975-3100.

Sincerely,

Katie Wilson, M.S.

Senior Air Quality Analyst

10 PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

APPENDIX A

GLOSSARY
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PR-2021-001026 (MCUP, DR) Exhibit 9 - Applicant Reponse to Appeal Letter

AQMP Air Quality Management Plan
CAAQS California Ambient Air Quality Standards
CalEPA California Environmental Protection Agency
CAPCOA California Air Pollution Control Officers Association CARB California Air Resources Board
CCAA California Clean Air Act
CCR California Code of Regulations
CEQA California Environmental Quality Act
CFCs Chlorofluorocarbons
CH4 Methane
CNG Compressed natural gas
CO Carbon monoxide
CO2 Carbon dioxide
CO2e Carbon dioxide equivalent
DPM Diesel particulate matter
EPA U.S. Environmental Protection Agency
GHG Greenhouse gas
GWP Global warming potential
HFCs Hydrofluorocarbons
IPCC International Panel on Climate Change
LST Localized Significant Thresholds
MTCO2e Metric tons of carbon dioxide equivalent
MMTCO2e Million metric tons of carbon dioxide equivalent MPO Metropolitan Planning Organization
NAAQS National Ambient Air Quality Standards
NOx Nitrogen Oxides
NO2 Nitrogen dioxide
N2O Nitrous oxide
O3 Ozone
OPR Governor’s Office of Planning and Research
PFCs Perfluorocarbons
PM Particle matter
PM10 Particles that are less than 10 micrometers in diameter PM2.5 Particles that are less than 2.5 micrometers in diameter PMI Point of maximum impact
PPB Parts per billion
PPM Parts per million
RTIP Regional Transportation Improvement Plan
RTP Regional Transportation Plan
SCAB South Coast Air Basin
SCAG Southern California Association of Governments
SCAQMD South Coast Air Quality Management District
SF6 Sulfur hexafluoride
SIP State Implementation Plan
SOx Sulfur Oxides
TAC Toxic air contaminants
UNFCC United Nations Framework Convention on Climate Change VOC Volatile organic compounds
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APPENDIX B

CALEEMOD MODEL DETAILED REPORT

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19631 Richardson RV Storage Detailed 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

2.4. Operations Emissions Compared Against Thresholds

2.5. Operations Emissions by Sector, 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
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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

4.7. Offroad Emissions By Equipment Type

4.7.1. Unmitigated

4.8. Stationary Emissions By Equipment Type

4.8.1. Unmitigated

4.9. User Defined Emissions By Equipment Type

4.9.1. Unmitigated

4.10. Soil Carbon Accumulation By Vegetation Type

4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated

4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated

4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated Apx-5
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5. Activity Data

5.9. Operational Mobile Sources

5.9.1. Unmitigated

5.10. Operational Area Sources

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

5.15. Operational Off-Road Equipment
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5.15.1. Unmitigated

5.16. Stationary Sources

5.16.1. Emergency Generators and Fire Pumps

5.16.2. Process Boilers

5.17. User Defined

5.18. Vegetation

5.18.1. Land Use Change

5.18.1.1. Unmitigated

5.18.1. Biomass Cover Type

5.18.1.1. Unmitigated

5.18.2. Sequestration

5.18.2.1. Unmitigated

6. Climate Risk Detailed Report

6.1. Climate Risk Summary

6.2. Initial Climate Risk Scores

6.3. Adjusted Climate Risk Scores

6.4. Climate Risk Reduction Measures
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7. Health and Equity Details

7.1. CalEnviroScreen 4.0 Scores

7.2. Healthy Places Index Scores

7.3. Overall Health & Equity Scores

7.4. Health & Equity Measures

7.5. Evaluation Scorecard

7.6. Health & Equity Custom Measures

8. User Changes to Default Data
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1. Basic Project Information

1.1. Basic Project Information
Data Field Value
Project Name 19631 Richardson RV Storage
Operational Y ear 2023
Lead Agency —
Land Use Scale Project/site
Analysis Level for Defaults County
Windspeed (m/s) 2.20
Precipitation (days) 18.0
Location 10030 Indiana Ave, Riverside, CA 92503, USA
County Riverside-South Coast
City Riverside
Air District South Coast AQMD
Air Basin South Coast
TAZ 5423
EDFZ 11
Electric Utility City of Riverside
Gas Utility Southern California Gas
App Version 2022.1.1.8

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
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——3,8601,3510.031000sqft1.35General Office
Building
1,351 sf existing
b
uilding converted to
office & 3,860 sf
landscaping
Parking Lot 46.0 Space 0.84 0.00 0.00 — — 46 spaces (45 RV & 1 ADA) with total
area being that of
33,763 sf paving &
2,749 sf concrete
(~0.84 acres total)

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

2. Emissions Summary

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. TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Daily, Summer
(Max)
— — — — — — — — — — —
Unmit. 0.03 0.07 0.03 0.26 < 0.005 < 0.005 0.01 0.02 < 0.005 < 0.005 < 0.005 Daily, Winter
(Max)
— — — — — — — — — — —
Unmit. 0.02 0.06 0.03 0.17 < 0.005 < 0.005 0.01 0.02 < 0.005 < 0.005 < 0.005 Average Daily
(Max)
— — — — — — — — — — —
Unmit. 0.03 0.06 0.03 0.22 < 0.005 < 0.005 0.01 0.02 < 0.005 < 0.005 < 0.005 Annual (Max) — — — — — — — — — — —
Unmit. 0.01 0.01 0.01 0.04 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 Apx-10
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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 TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Daily, Summer
(Max)
— — — — — — — — — — —
Mobile 0.02 0.02 0.02 0.19 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 Area 0.01 0.05 < 0.005 0.06 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Energy < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Water — — — — — — — — — — —
Waste — — — — — — — — — — —
Refrig. — — — — — — — — — — —
Total 0.03 0.07 0.03 0.26 < 0.005 < 0.005 0.01 0.02 < 0.005 < 0.005 < 0.005 Daily, Winter
(Max)
— — — — — — — — — — —
Mobile 0.02 0.02 0.02 0.16 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 Area — 0.04 — — — — — — — — —
Energy < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Water — — — — — — — — — — —
Waste — — — — — — — — — — —
Refrig. — — — — — — — — — — —
Total 0.02 0.06 0.03 0.17 < 0.005 < 0.005 0.01 0.02 < 0.005 < 0.005 < 0.005 Average Daily — — — — — — — — — — —
Mobile 0.02 0.02 0.02 0.17 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 Area 0.01 0.04 < 0.005 0.04 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Energy < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Water — — — — — — — — — — —
Waste — — — — — — — — — — —
Refrig. — — — — — — — — — — —
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Total 0.03 0.06 0.03 0.22 < 0.005 < 0.005 0.01 0.02 < 0.005 < 0.005 < 0.005 Annual — — — — — — — — — — —
Mobile < 0.005 < 0.005 < 0.005 0.03 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 Area < 0.005 0.01 < 0.005 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Energy < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Water — — — — — — — — — — —
Waste — — — — — — — — — — —
Refrig. — — — — — — — — — — —
Total 0.01 0.01 0.01 0.04 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005

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 TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Daily, Summer
(Max)
— — — — — — — — — — —
General Office
Building

0.02 0.02 0.02 0.19 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total 0.02 0.02 0.02 0.19 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 Daily, Winter
(Max)
— — — — — — — — — — —
General Office
Building

0.02 0.02 0.02 0.16 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total 0.02 0.02 0.02 0.16 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 Apx-12
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Annual — — — — — — — — — — —
General Office
Building
< 0.005 < 0.005 < 0.005 0.03 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total < 0.005 < 0.005 < 0.005 0.03 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005

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 TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Daily, Summer
(Max)
— — — — — — — — — — —
General Office
Building
— — — — — — — — — — —
Parking Lot — — — — — — — — — — —
Total — — — — — — — — — — —
Daily, Winter
(Max)
— — — — — — — — — — —
General Office
Building
— — — — — — — — — — —
Parking Lot — — — — — — — — — — —
Total — — — — — — — — — — —
Annual — — — — — — — — — — —
General Office
Building
— — — — — — — — — — —
Parking Lot — — — — — — — — — — —
Total — — — — — — — — — — —
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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 TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Daily, Summer
(Max)
— — — — — — — — — — —
General Office
Building
< 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 Total < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Daily, Winter
(Max)
— — — — — — — — — — —
General Office
Building
< 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 Total < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Annual — — — — — — — — — — —
General Office
Building
< 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 Total < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005

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 TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Daily, Summer
(Max)
— — — — — — — — — — —
Consumer
Products
— 0.03 — — — — — — — — —
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Architectural
Coatings
— 0.01 — — — — — — — — —
Landscape
Equipment

0.01 0.01 < 0.005 0.06 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Total 0.01 0.05 < 0.005 0.06 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Daily, Winter
(Max)
— — — — — — — — — — —
Consumer
Products
— 0.03 — — — — — — — — —
Architectural
Coatings
— 0.01 — — — — — — — — —
Total — 0.04 — — — — — — — — —
Annual — — — — — — — — — — —
Consumer
Products
— 0.01 — — — — — — — — —
Architectural
Coatings
— < 0.005 — — — — — — — — —
Landscape
Equipment
< 0.005 < 0.005 < 0.005 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 Total < 0.005 0.01 < 0.005 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005

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 TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Daily, Summer
(Max)
— — — — — — — — — — —
General Office
Building
— — — — — — — — — — —
Parking Lot — — — — — — — — — — —
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Total — — — — — — — — — — —
Daily, Winter
(Max)
— — — — — — — — — — —
General Office
Building
— — — — — — — — — — —
Parking Lot — — — — — — — — — — —
Total — — — — — — — — — — —
Annual — — — — — — — — — — —
General Office
Building
— — — — — — — — — — —
Parking Lot — — — — — — — — — — —
Total — — — — — — — — — — —

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 TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Daily, Summer
(Max)
— — — — — — — — — — —
General Office
Building
— — — — — — — — — — —
Parking Lot — — — — — — — — — — —
Total — — — — — — — — — — —
Daily, Winter
(Max)
— — — — — — — — — — —
General Office
Building
— — — — — — — — — — —
Parking Lot — — — — — — — — — — —
Total — — — — — — — — — — —
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Annual — — — — — — — — — — —
General Office
Building
— — — — — — — — — — —
Parking Lot — — — — — — — — — — —
Total — — — — — — — — — — —

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 TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Daily, Summer
(Max)
— — — — — — — — — — —
General Office
Building
— — — — — — — — — — —
Total — — — — — — — — — — —
Daily, Winter
(Max)
— — — — — — — — — — —
General Office
Building
— — — — — — — — — — —
Total — — — — — — — — — — —
Annual — — — — — — — — — — —
General Office
Building
— — — — — — — — — — —
Total — — — — — — — — — — —

4.7. Offroad Emissions By Equipment Type

4.7.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Apx-17
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Equipment
T
ype
TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Daily, Summer
(Max)
— — — — — — — — — — —
Total — — — — — — — — — — —
Daily, Winter
(Max)
— — — — — — — — — — —
Total — — — — — — — — — — —
Annual — — — — — — — — — — —
Total — — — — — — — — — — —

4.8. Stationary Emissions By Equipment Type

4.8.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Equipment
T
ype
TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Daily, Summer
(Max)
— — — — — — — — — — —
Total — — — — — — — — — — —
Daily, Winter
(Max)
— — — — — — — — — — —
Total — — — — — — — — — — —
Annual — — — — — — — — — — —
Total — — — — — — — — — — —

4.9. User Defined Emissions By Equipment Type

4.9.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Apx-18
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Equipment
T
ype
TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Daily, Summer
(Max)
— — — — — — — — — — —
Total — — — — — — — — — — —
Daily, Winter
(Max)
— — — — — — — — — — —
Total — — — — — — — — — — —
Annual — — — — — — — — — — —
Total — — — — — — — — — — —

4.10. Soil Carbon Accumulation By Vegetation Type

4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Vegetation TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Daily, Summer
(Max)
— — — — — — — — — — —
Total — — — — — — — — — — —
Daily, Winter
(Max)
— — — — — — — — — — —
Total — — — — — — — — — — —
Annual — — — — — — — — — — —
Total — — — — — — — — — — —

4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Apx-19
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———————————Daily, Summer
(Max)
Total — — — — — — — — — — —
Daily, Winter
(Max)
— — — — — — — — — — —
Total — — — — — — — — — — —
Annual — — — — — — — — — — —
Total — — — — — — — — — — —

4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Species TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T Daily, Summer
(Max)
— — — — — — — — — — —
Avoided — — — — — — — — — — —
Subtotal — — — — — — — — — — —
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Subtotal — — — — — — — — — — —
Removed — — — — — — — — — — —
Subtotal — — — — — — — — — — —
— — — — — — — — — — — —
Daily, Winter
(Max)
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Subtotal — — — — — — — — — — —
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Removed — — — — — — — — — — —
Subtotal — — — — — — — — — — —
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— — — — — — — — — — — —
Annual — — — — — — — — — — —
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Subtotal — — — — — — — — — — —
— — — — — — — — — — — —

5. Activity Data

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 General Office
Building

4.00 4.00 4.00 1,460 50.8 50.8 50.8 18,560
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

5.10.2. Architectural Coatings
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)
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0 0.00 2,027 676 2,195

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) General Office Building 23,566 873 0.0330 0.0040 37,270 Parking Lot 32,053 873 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) General Office Building 240,118 61,203
Parking Lot 0.00 0.00

5.13. Operational Waste Generation

5.13.1. Unmitigated
Land Use Waste (ton/year) Cogeneration (kWh/year)
General Office Building 1.26 0.00
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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 General Office Building Household refrigerators
and/or
freezers
R-134a 1,430 0.02 0.60 0.00 1.00
General Office Building Other commercial A/C
and
heat pumps
R-410A 2,088 < 0.005 4.00 4.00 18.0

5.15. Operational Off-Road Equipment

5.15.1. Unmitigated
Equipment Type Fuel Type Engine Tier Number per Day Hours Per Day Horsepower Load Factor

5.16. Stationary Sources

5.16.1. Emergency Generators and Fire Pumps
Equipment Type Fuel Type Number per Day Hours per Day Hours per Y ear Horsepower Load Factor

5.16.2. Process Boilers
Equipment Type Fuel Type Number Boiler Rating (MMBtu/hr) Daily Heat Input (MMBtu/day) Annual Heat Input (MMBtu/yr)

5.17. User Defined
Equipment Type Fuel Type
— —
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5.18. Vegetation

5.18.1. Land Use Change

5.18.1.1. Unmitigated
Vegetation Land Use Type Vegetation Soil Type Initial Acres Final Acres

5.18.1. Biomass Cover Type

5.18.1.1. Unmitigated
Biomass Cover Type Initial Acres Final Acres

5.18.2. Sequestration

5.18.2.1. Unmitigated
Tree Type Number Electricity Saved (kWh/year) Natural Gas Saved (btu/year)

6. Climate Risk Detailed Report

6.1. Climate Risk Summary
Cal-Adapt midcentury 2040–2059 average projections for four hazards are reported below for your project location. These are under Representation Concentration Pathway (RCP) 8.5 which assumes GHG emissions
will continue to rise strongly through 2050 and then plateau around 2100.

Climate Hazard Result for Project Location Unit
Temperature and Extreme Heat 25.1 annual days of extreme heat Extreme Precipitation 2.00 annual days with precipitation above 20 mm Sea Level Rise 0.00 meters of inundation depth
Wildfire 3.16 annual hectares burned
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Temperature and Extreme Heat data are for grid cell in which your project are located. The projection is based on the 98th historical percentile of daily maximum/minimum temperatures from observed histor
ical data (32 climate model ensemble from Cal-Adapt, 2040–2059 average under RCP 8.5). Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi.

Extreme Precipitation data are for the grid cell in which your project are located. The threshold of 20 mm is equivalent to about ¾ an inch of rain, which would be light to moderate rainfall if received over a full da
y or heavy rain if received over a period of 2 to 4 hours. Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi.

Sea Level Rise data are for the grid cell in which your project are located. The projections are from Radke et al. (2017), as reported in Cal-Adapt (2040–2059 average under RCP 8.5), and consider different increments
of sea level rise coupled with extreme storm events. Users may select from four model simulations to view the range in potential inundation depth for the grid cell. The four simulations make different assumptions about expected rainfall and temperature are: Warmer/drier (HadGEM2-ES), Cooler/wetter (CNRM-CM5), Average conditions (CanESM2), Range of different rainfall and temperature possibilities (MIROC5). Each grid cell is 50 meters (m) by 50 m, or about 164 feet (ft) by 164 ft.

Wildfire data are for the grid cell in which your project are located. The projections are from UC Davis, as reported in Cal-Adapt (2040–2059 average under RCP 8.5), and consider historical data of climate, v
egetation, population density, and large (> 400 ha) fire history. Users may select from four model simulations to view the range in potential wildfire probabilities for the grid cell. The four simulations make different assumptions about expected rainfall and temperature are: Warmer/drier (HadGEM2-ES), Cooler/wetter (CNRM-CM5), Average conditions (CanESM2), Range of different rainfall and temperature possibilities (MIROC5). Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi.

6.2. Initial Climate Risk Scores
Climate Hazard Exposure Score Sensitivity Score Adaptive Capacity Score Vulnerability Score Temperature and Extreme Heat 3 0 0 N/A
Extreme Precipitation N/A N/A N/A N/A
Sea Level Rise 1 0 0 N/A
Wildfire 1 0 0 N/A
Flooding N/A N/A N/A N/A
Drought N/A N/A N/A N/A
Snowpack Reduction N/A N/A N/A N/A
Air Quality Degradation 0 0 0 N/A
The sensitivity score reflects the extent to which a project would be adversely affected by exposure to a climate hazard. Exposure is rated on a scale of 1 to 5, with a score of 5 representing the greatest e
xposure.

The adaptive capacity of a project refers to its ability to manage and reduce vulnerabilities from projected climate hazards. Adaptive capacity is rated on a scale of 1 to 5, with a score of 5 representing the g
reatest ability to adapt.

The overall vulnerability scores are calculated based on the potential impacts and adaptive capacity assessments for each hazard. Scores do not include implementation of climate risk reduction measures.

6.3. Adjusted Climate Risk Scores
Climate Hazard Exposure Score Sensitivity Score Adaptive Capacity Score Vulnerability Score Temperature and Extreme Heat 3 1 1 3
Extreme Precipitation N/A N/A N/A N/A
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Sea Level Rise 1 1 1 2
Wildfire 1 1 1 2
Flooding N/A N/A N/A N/A
Drought N/A N/A N/A N/A
Snowpack Reduction N/A N/A N/A N/A
Air Quality Degradation 1 1 1 2
The sensitivity score reflects the extent to which a project would be adversely affected by exposure to a climate hazard. Exposure is rated on a scale of 1 to 5, with a score of 5 representing the greatest e
xposure.

The adaptive capacity of a project refers to its ability to manage and reduce vulnerabilities from projected climate hazards. Adaptive capacity is rated on a scale of 1 to 5, with a score of 5 representing the g
reatest ability to adapt.

The overall vulnerability scores are calculated based on the potential impacts and adaptive capacity assessments for each hazard. Scores include implementation of climate risk reduction measures.

6.4. Climate Risk Reduction Measures

7. Health and Equity Details

7.1. CalEnviroScreen 4.0 Scores
The maximum CalEnviroScreen score is 100. A high score (i.e., greater than 50) reflects a higher pollution burden compared to other census tracts in the state.

Indicator Result for Project Census Tract
Exposure Indicators —
AQ-Ozone 91.1
AQ-PM 90.3
AQ-DPM 59.5
Drinking Water 77.4
Lead Risk Housing 42.4
Pesticides 70.7
Toxic Releases 72.0
Traffic 45.7
Effect Indicators —
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CleanUp Sites 17.1
Groundwater 0.00
Haz Waste Facilities/Generators 40.9
Impaired Water Bodies 0.00
Solid Waste 63.7
Sensitive Population —
Asthma 66.4
Cardio-vascular 81.9
Low Birth Weights 2.90
Socioeconomic Factor Indicators —
Education 60.1
Housing 45.0
Linguistic 27.3
Poverty 42.4
Unemployment 36.4

7.2. Healthy Places Index Scores
The maximum Health Places Index score is 100. A high score (i.e., greater than 50) reflects healthier community conditions compared to other census tracts in the state.

Indicator Result for Project Census Tract
Economic —
Above Poverty 71.74387271
Employed 68.92082638
Median HI 68.04824843
Education —
Bachelor's or higher 40.75452329
High school enrollment 100
Preschool enrollment 70.80713461
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Transportation —
Auto Access 67.17567047
Active commuting 28.51276787
Social —
2-parent households 43.89837033
Voting 47.35018606
Neighborhood —
Alcohol availability 75.69613756
Park access 34.31284486
Retail density 20.74939048
Supermarket access 34.58231746
Tree canopy 52.2776851
Housing —
Homeownership 78.81432054
Housing habitability 86.3852175
Low-inc homeowner severe housing cost burden 77.08199666 Low-inc renter severe housing cost burden 62.29949955
Uncrowded housing 78.31387142
Health Outcomes —
Insured adults 31.25882202
Arthritis 36.0
Asthma ER Admissions 31.6
High Blood Pressure 48.4
Cancer (excluding skin) 25.9
Asthma 58.2
Coronary Heart Disease 54.4
Chronic Obstructive Pulmonary Disease 53.7
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Diagnosed Diabetes 70.5
Life Expectancy at Birth 23.2
Cognitively Disabled 72.6
Physically Disabled 69.8
Heart Attack ER Admissions 9.2
Mental Health Not Good 62.3
Chronic Kidney Disease 64.9
Obesity 48.4
Pedestrian Injuries 19.6
Physical Health Not Good 64.0
Stroke 70.4
Health Risk Behaviors —
Binge Drinking 14.4
Current Smoker 57.8
No Leisure Time for Physical Activity 61.3
Climate Change Exposures —
Wildfire Risk 1.4
SLR Inundation Area 0.0
Children 76.4
Elderly 50.2
English Speaking 88.6
Foreign-born 29.6
Outdoor Workers 58.0
Climate Change Adaptive Capacity —
Impervious Surface Cover 77.3
Traffic Density 61.6
Traffic Access 23.0
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Other Indices —
Hardship 29.9
Other Decision Support —
2016 Voting 66.7

7.3. Overall Health & Equity Scores
Metric Result for Project Census Tract
CalEnviroScreen 4.0 Score for Project Location (a) 62.0 Healthy Places Index Score for Project Location (b) 59.0 Project Located in a Designated Disadvantaged Community (Senate Bill 535) No Project Located in a Low-Income Community (Assembly Bill 1550) No Project Located in a Community Air Protection Program Community (Assembly Bill 617) No a: The maximum CalEnviroScreen score is 100. A high score (i.e., greater than 50) reflects a higher pollution burden compared to other census tracts in the state. b: The maximum Health Places Index score is 100. A high score (i.e., greater than 50) reflects healthier community conditions compared to other census tracts in the state.

7.4. Health & Equity Measures
No Health & Equity Measures selected.

7.5. Evaluation Scorecard
Health & Equity Evaluation Scorecard not completed.

7.6. Health & Equity Custom Measures
No Health & Equity Custom Measures created.

8. User Changes to Default Data
Screen Justification
Operations: Vehicle Data Per the property owner, up to 4 trips a day for the RV/Trailer storage use. The proposed office building is
1,351 square feet; therefore, 4 trips per 1.351 thousand square feet results in 2.96 trips per thousand square foot per day.

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Land Use ~1 acre project site with 1,351 sf existing building converted to office space & parking lot including 45 R
V spaces & 1 ADA space. Total paved area is 33,763 sf, concrete areas are 2,479 sf, & landscaped areas are 3,860 sf.

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