APPENDIX H Noise Analysis Technical Study

Home , Roadway noise

Noise Analysis Technical Study Symphony at San Gabriel Assisted Living

Prepared for:

City of San Gabriel 425 Mission Drive San Gabriel California 91776

Prepared by:

Meridian Consultants, LLC 910 Hampshire Road, Suite V Westlake Village, CA 91361

April 2018

Table of Contents

Section Page 1. Executive Summary ...... 1

2. Project Description ...... 1

3. Methodology ...... 4

4. Regulatory Setting ...... 11

5. Existing Conditions ...... 11

6. Impact Analysis ...... 16

7. Cumulative Analysis ...... 23

8. Conclusions ...... 27

Appendix

A Noise Monitoring Data Sheets B Roadway Traffic Noise Spreadsheets C Construction Noise Data Spreadsheets

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List of Figures

Figure Page Figure 1 Regional Location Map ...... 2

Figure 2 Project Location Map ...... 3

Figure 3 Noise Monitoring Locations ...... 12

Tables

Table Page 1 City of San Gabriel Exterior Standards ...... 9

2 City of San Gabriel Interior Standards ...... 10

3 Ambient Noise Measurements ...... 13

4 Existing Roadway Noise Levels ...... 14

5 Typical Maximum Noise Levels for Construction Equipment ...... 16

6 Construction Noise Estimates ...... 17

7 Construction Vibration Levels Estimates ...... 19

8 Existing plus Project Roadway Noise Levels ...... 21

9 City of San Gabriel General Plan Applicable Goals & Policies ...... 23

10 Cumulative plus Project Roadway Noise Levels ...... 25

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1. EXECUTIVE SUMMARY

This Noise Study assesses and discusses the potential noise and vibration impacts that may occur with the implementation of the Symphony at San Gabriel Assisted Living (“Proposed Project”), located in San Gabriel, California. The analysis describes the existing environment in the Proposed Project area, estimates future noise and vibration levels at surrounding land uses resulting from construction and operation of the Proposed Project, and identified the potential for significant impacts. An evaluation of the Proposed Project’s contribution to potential cumulative noise impacts is also provided. The study summarizes that the Proposed Project would not conflict with applicable noise and vibration regulations, standards, and thresholds.

The conclusions of this study are as follows:

• Construction activities would potentially result in short-term and temporary noise impacts to nearby noise-sensitive receptors due to on-site construction equipment and activities. Implementation of noise attenuation techniques and placement of the construction-staging area and earthmoving equipment away from noise-sensitive sites would lower construction noise levels.

• Construction of the Proposed Project would generate sporadic, temporary vibration effects adjacent to the Project area but would not be expected to exceed the significance thresholds.

• Operation of the Proposed Project would generate noise from Proposed Project-related traffic or from on-site sources (e.g, parking structure) and would not exceed the significance thresholds. 2. PROJECT DESCRIPTION

The Proposed Project is located in the City of San Gabriel (“City”) north of the Interstate 10 (I-10) Freeway and south of the Interstate 210 (I-210) Freeway, as shown in Figure 1, Regional Location Map. More specifically, the Proposed Project is located at 824 S. Gladys Avenue between E. Grand Avenue and Santa Fe Avenue (“Project Site”) as shown in Figure 2, Project Site Location.

The Project Site was formerly developed with the Mission Lodge Sanitarium; however, the structures have been removed. The Proposed Project would redevelop the Project Site with a 3-story, 197-unit Assisted Living and Memory Care Facility, which would contain one- and two bedroom assisted living units and a memory care unit. The Proposed Project would include subterranean parking and a small surface parking lot.

Meridian Consultants 1 Symphony at San Gabriel Assisted Living 188-001-17 April 2018 Kern County

Los Angeles County LIFORN CA IA

O ALIF RNIA 14 C 138

California Aqueduct LIFORN CA IA 138

INTERSTATE 5

LIFORN CA IA

LIFORN 138 CA IA 18

LIFORN CA IA 138 LIFORN Los Angeles County CA IA 14 LIFORN CA IA Santa Clarita Ventura County 126

LIFORN CA IA

LIFORN 126 CA IA 2

LIFORN CA IA Project 2 Location Porter Ranch LIFORN CA IA

LIFORN 118 CA IA Mission Hills 118 Granada Hills Chatsworth

INTERSTATE

LIFORN INTERSTATE CA IA 210 27 405 Sun Valley INTERSTATE

US LIFORN Warner Center CA IA O 5 ALIF RNIA C US North LIFORN 101 CA IA 101 170 Burbank Hollywood 2 LIFORN CA IA 39

INTERSTATE Woodland Hills Encino 134 Sherman Oaks 210 US LIFORNI Pasadena CA A Calabasas 101 Glendale 30 South IFORN Hollywood L CA IA INTERSTATE Pasadena US LIFORN CA IA LIFORN 27 CA IA 5 Los Angeles County INTERSTATE INTERSTATE 66 23 2 Los El Monte Angeles 10 10

ALIFORNIA Beverly Hills C San Bernardino County Monterey Park INTERSTATE ALIFORNIA C LIFORN 71 CA IA Malibu 10 1 Montbello INTERSTATE 60 Santa Monica Culver City O 605 ALIF RNIA C LIFORN CA IA LIFORN CA IA 1 Huntington 60 90 O LIF RN CA IA Park INTERSTATE Whittier LIFORN CA IA

ALIFORNIA LIFORN C 710 CA IA 110 57 P 42 Downey 72 Inglewood a INTERSTATE Santa Fe Springs

LIFORN 105 CA IA INTERSTATE c 90 INTERSTATE 5 i Paramount La Mirada 405 Gardena Compton

LIFORN f CA IA Cerritos

LIFORN i 91 CA IA INTERSTATE Carson 19 c Torrance 605 Lakewood LIFORN CA IA ALIFORNIA LIFORN C CA IA 107 INTERSTATE O 213 405 39

LIFORN CA IA

LIFORN c CA IA 1 IFOR L N 47 Long Beach CA IA LIFORN e CA IA 1 Rancho Palos 110 Verdes INTERSTATE a 405 n Terminal Island San Pedro

1260 24 N APPROXIMATE SCALE IN MILES

FIGURE 1 Regional Location Map

188-001-17 Legend Project Site 0 75 150 300 N SCALE IN FEET SOURCE: Google Earth - 2018 FIGURE 2 Project Site Location

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3. METHODOLOGY Fundamentals of Sound

Because the human ear does not respond uniformly to sounds at all frequencies, sound-pressure level alone is not a reliable indicator of loudness. For example, the human ear is less sensitive to low and high frequencies than to the medium frequencies that more closely correspond to human speech. In response to the sensitivity of the human ear to certain sound frequencies, the A-weighted noise level, referenced in units of dBA, was developed to better correspond with people’s subjective judgment of sound levels. To support assessing a community reaction to noise, scales have been developed that average sound- pressure levels over time and quantifies the result in terms of a single numerical descriptor. Several scales have been developed that address community noise levels. The equivalent sound level (Leq) is the average A-weighted sound level measured over a given time interval. Leq can be measured over any period but is typically measured for 1-minute, 15-minute, 1-hour, or 24-hour periods.

A doubling of sound energy results in a 3 dBA increase in sound, which means that a doubling of sound wave energy (e.g., doubling the volume of traffic on a roadway) would result in a barely perceptible change in sound level. In general, changes in a noise level of less than 3 dBA are not noticed by the human ear.1 Changes from 3 to 5 dBA may be noticed by some individuals who are extremely sensitive to changes in noise. An increase of greater than 5 dBA is readily noticeable, while the human ear perceives a 10 dBA increase in sound level to be a doubling of sound volume.

Noise sources can generally be categorized in two types: (1) point sources, such as stationary equipment; and (2) line sources, such as a roadway. Sound generated by a point source typically diminishes (attenuates) at a rate of 6 dBA for each doubling of distance from the source to the receptor at acoustically hard sites, and at a rate of 7.5 dBA at acoustically soft sites.2 A hard, or reflective, site consists of asphalt, concrete, or very hard-packed soil, which does not provide any excess ground-effect attenuation. An acoustically soft or absorptive site is characteristic of normal earth and most ground with vegetation.

Fundamentals of Vibration

Vibration is commonly defined as an oscillatory motion through a solid medium in which the motion’s amplitude can be described in terms of displacement, velocity, or acceleration. The peak particle velocity (PPV) or the root-mean-square (RMS) velocity is usually used to describe vibration amplitudes. PPV is defined as the maximum instantaneous peak of the vibration signal, while RMS is defined as the square

1 US Department of Transportation, Federal Highway Administration, Fundamentals and Abatement of Highway Traffic Noise (Springfield, VA: Author, September 1980), 81. 2 US Department of Transportation, Fundamentals and Abatement (September 1980), 97.

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root of the average of the squared amplitude of the signal. PPV is typically used for evaluating potential building damage, whereas RMS is typically more suitable for evaluating human response to ground-borne vibration. The RMS vibration velocity level can be presented in inches per second or in VdB (a decibel unit referenced to 1 microinch per second). Commonly, ground-borne vibration generated by man-made activities (i.e., road traffic, construction activity) attenuates rapidly with distance from the source of the vibration.

The vibration velocity level threshold of perception for humans is approximately 65 VdB. A vibration velocity of 75 VdB is the approximate dividing line between barely perceptible and distinctly perceptible levels for many people. Most perceptible indoor vibration is caused by sources within buildings, such as the operation of mechanical equipment, the movement of people, or the slamming of doors. Typical outdoor sources of perceptible ground-borne vibration are construction equipment, steel-wheeled trains, and traffic on rough roads. If a roadway is smooth, the ground-borne vibration from traffic is barely perceptible. The range of interest is from approximately 50 VdB, which is the typical background vibration velocity, to 100 VdB, which is the general threshold where minor damage can occur in fragile buildings.

Construction Scenario

Project construction is estimated to begin in the summer of 2018 and end in late 2019. Construction would occur over five phases: (1) site preparation which would last approximately 30 days; (2) grading which would last approximately 45 days; (3) building construction which would last approximately 280 days; (4) architectural coating which would last approximately 155 days; and (5) paving which would last approximately 10 days.

Roadway Noise

Traffic noise levels were modeled using the Federal Highway Administration (FHWA) Noise Prediction Model. That model calculates the average noise level in dBA CNEL along a given roadway segment based on traffic volumes, vehicle mix, posted speed limits, roadway geometry, and site conditions. The model calculates noise associated with a specific line source and the results characterize noise generated by motor vehicle traffic along the specific roadway segment. The noise model assumes a “hard” site condition (i.e., providing for the minimum amount of sound attenuation allowed by the traffic noise model), a 6.0 dBA noise reduction per doubling of distance, and no barriers between the roadway and receivers.

The model incorporates an alpha factor that characterizes the surface conditions of the area. An acoustically hard site uses an alpha factor of zero, while an acoustically soft site uses an alpha factor of 0.5. The greater the alpha factor, the greater the noise attenuates with increasing distance. Average vehicle noise rates utilized in the FHWA model have been modified to reflect average vehicle noise rates identified for California by the California Department of Transportation (“Caltrans”). According to data

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collected by Caltrans, California automobile noise is 0.8 to 1.0 dBA louder than national levels, while medium and heavy truck noise is 0.3 to 3.0 dBA quieter than national levels. Roadway traffic data were obtained from the traffic impact study for the proposed Project. Noise levels were evaluated with respect to the following modeled traffic scenarios:

• Existing (2017)

• Existing (2017) with Project • Cumulative (2019)

• Cumulative (2019) with Project Ambient Noise Measurement

Noise level monitoring was conducted by Meridian Consultants on December 14, 2017, at four locations within the Project area vicinity, as shown in Figure 3. Noise level monitoring was conducted for 15-minute intervals at each location using a Larson Davis Model 831 sound-level meter. This meter satisfies the American National Standards Institute (ANSI) standard for general environmental noise measurement instrumentation. The ANSI specifies several types of sound-level meters according to their precision. Types 1, 2, and 3 are referred to as “precision,” “general-purpose,” and “survey” meters, respectively. Most measurements carefully taken with a Type 1 sound-level meter will have a margin of error not exceeding 1 dB.

The Larson Davis Model 831 is a Type 1 precision sound-level meter. This meter meets all requirements of ANSI S1.4-1983 and ANSI1.43-1997 Type 1 standards, as well as International Electrotechnical Commission (IEC) IEC61672-1 Ed. 1.0, IEC60651 Ed 1.2, and IEC60804 Type 1, Group X standards.

The sound-level meter was located approximately 5 feet above ground and was covered with a Larson Davis windscreen. The sound-level meter was field calibrated with an external calibrator prior to operation.

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4. REGULATORY SETTING Federal Regulations

US Environmental Protection Agency

The Federal Noise Control Act of 1972 establishes programs and guidelines to identify and address the effects of noise on public health and welfare and the environment.3 The US Environmental Protection Agency (USEPA) administrators determined in 1981 that subjective issues such as noise would be better addressed at more local levels of government. Consequently, in 1982, responsibilities for regulating noise- control policies were transferred to state and local governments.

Federal Transit Administration Vibration Guidelines

The Federal Transit Administration (FTA) has published a technical manual titled Transit Noise and Vibration Impacts Assessment, which provides ground-borne vibration impact criteria with respect to building damage during construction activities.4 Building vibration damage is measured in PPV described in the unit of inches per second (ips). According to the FTA guidelines, a vibration criterion of 0.20 ips PPV should be considered as the significant impact level for nonengineered timber and masonry buildings. Structures or buildings constructed of reinforced concrete, steel, or timber have a vibration damage criterion of 0.50 ips PPV based on the FTA guidelines.

State Regulations

State of California Building Code

California’s noise insulation standards are codified in the California Code of Regulations, Title 24, Building Standards Administrative Code, Part 2, California Building Code. These noise standards are applied to new construction in California to ensure interior noise compatibility from exterior noise sources. The regulations specify that acoustical studies must be prepared when noise-sensitive structures, such as residential buildings, schools, or hospitals, are located near major transportation noise sources, and where such noise sources create an exterior noise level of 60 dBA CNEL or higher. Acoustical studies that accompany building plans must demonstrate that the structure has been designed to limit interior noise in habitable rooms to acceptable noise levels. For new residential buildings, schools, and hospitals, the acceptable interior noise limit for new construction is 45 dBA CNEL.

3 Noise Control Act of 1972, sec. 2 (1972). 4 USDOT, Federal Transit Administration (FTA), Transit Noise and Vibration Impact Assessment, prepared by Harris Miller, Miller & Hanson Inc. (May 2006).

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California Noise Insulation Standards

The California Noise Insulation Standards5 require that interior noise levels from exterior sources be 45 dBA or less in any habitable room of a multi-residential-use facility (e.g., hotels, motels, dormitories, long- term care facilities, and apartment houses, except detached single-family dwellings) with doors and windows closed. Measurements are based on CNEL or Ldn, whichever is consistent with the noise element of the local general plan. Where exterior noise levels exceed 60 dBA CNEL, an acoustical analysis for new development may be required to show that the proposed construction will reduce interior noise levels to 45 dBA CNEL. The California Noise Insulations Standards state that if the interior 45 dBA CNEL limit can be achieved only with the windows closed, the residence must include mechanical ventilation that meets applicable Uniform Building Code requirements for a habitable interior.

California Department of Health Services

The State of California Department of Health Services, Environmental Health Division, has published recommended guidelines for noise and land use compatibility, referred to as the State Land Use Compatibility Guidelines for Noise (State Noise Guidelines).6 Commercial and industrial land uses generally should be located in areas where outdoor ambient noise levels do not exceed 70 to 75 dBA CNEL. According to the State Noise Guidelines, an exterior noise level of 65 dBA CNEL is considered “normally acceptable” for office buildings and for business commercial and professional uses involving normal, conventional construction without any special noise insulation requirements. Exterior noise levels up to 75 dBA CNEL are typically considered “normally acceptable” for industrial and manufacturing utility uses without any special noise insulation requirements. Between these values and 80 dBA CNEL, exterior noise levels are typically considered “conditionally acceptable,” and commercial and industrial construction should only occur after a detailed analysis of the noise reduction requirements and needed noise attenuation features have been included in the project design. Exterior noise attenuation features include but are not limited to requiring setbacks to place structures outside the conditionally acceptable noise contour, orienting structures so no windows open to the noise source, and/or installing noise barriers such as berms and/or solid walls.

5 California Code of Regulations, tit. 24, sec. 3501 et seq. 6 California Governor’s Office of Planning and Research, State of California General Plan Guidelines (February 1976), Appendix C: “Guidelines for the Preparation and Content of Noise Elements of the General Plan.”

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Local Regulations

City of San Gabriel General Plan

The City’s General Plan includes a Noise Chapter which includes the goals for improving the City’s noise environment. Table 1, City of San Gabriel Exterior Standards shows the exterior noise levels that would apply within a designate noise zone. These exterior noise levels are based on the following standards:

• Standard 1: the exterior noise level that may not be exceeded for more than a total of 30 minutes in any hour.

• Standard 2: the exterior noise level that may not be exceeded for more than a total of 15 minutes in any hour.

• Standard 3: the exterior noise level that may not be exceeded for more than a total of five minutes in any hour.

• Standard 4: the exterior noise level that may not be exceeded for more than a total of one minute in any hour.

• Standard 5: the exterior noise level that may not be exceeded for any period of time.

Table 2, City of San Gabriel Interior Standards indicates the interior noise levels for residential dwellings within dwellings with windows in a normal configuration. These interior noise levels are based on the following standards:

• Standard 1: the interior noise level that may not be exceeded for more than a total of five minutes in any hour

• Standard 2: the interior noise level that may not be exceeded for more than a total of one minute in any hour.

• Standard 3: the interior noise level that may not be exceeded for any period of time.

Table 1 City of San Gabriel Exterior Standards

Noise Designated Time Exterior Standard Standard Standard Standard Standard Zone Noise Zone Land Interval Noise 1 2 3 4 5 Use (Receptor Level (dB) property) 1 Noise-sensitive Anytime 45 45 50 55 60 65 area 2 Residential 10:00 45 45 50 55 60 65 properties pm to 7:00 am

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Noise Designated Time Exterior Standard Standard Standard Standard Standard Zone Noise Zone Land Interval Noise 1 2 3 4 5 Use (Receptor Level (dB) property) 2 Residential 7:00 am 50 50 55 60 65 70 properties to 10:00 pm 3 Commercial 10:00 55 55 60 65 70 75 properties pm to 7:00 am 3 Commercial 7:00 am 60 60 65 70 75 80 properties to 10:00 pm 4 Industrial Anytime 70 70 75 80 85 90 properties

Table 2 City of San Gabriel Interior Noise Standards

Noise Designated Time Interval Allowable Interior Standard Standard Standard Zone Land Use Noise Level (dB) 1 2 3 All Residential 10:00 pm to 7:00 am 40 40 45 50 7:00 am to 10:00 pm 45 45 50 55

The applicable noise standards governing the Project Site are the criteria in the City of San Gabriel General Plan Noise Element7 and Municipal Code (Noise Ordinance, see Section 4.12.2.4). The General Plan noise policies cite to applicable State standards including the California Administrative Code, Section 1092 of Title 25, Chapter 1, Subchapter 1, Article 4 and Section 5014 of Title 21, Subchapter 6, Article 2. The specific City General Plan policy related to noise that is relevant to the Project is:

Goal 9.4: Protect residents from the harmful effects of noise from mechanical equipment and trucks.

7 City of San Gabriel, The Comprehensive General Plan of the City of San Gabriel, California 2004, May 18, 2004 https://www.sangabrielcity.com/DocumentCenter/Home/View/733, accessed January 2018.

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Municipal Code

The City of San Gabriel’s Municipal Code (Sections 116.029 – Standards, and 98.02 - Nuisances8) has established maximum interior noise levels for short-duration events. Daytime hours are defined as 7 AM to 10 PM. Nighttime hours are defined as 10:00 PM to 7:00 AM. For construction related noise, the City code states to maintain or operate, between the hours of 10:00 PM to 7:00 AM, any device, vehicle, or machinery in such a manner as to create noise or cause vibrations which cause discomfort or annoyance to reasonable persons of normal sensitivity, or which endangers the comfort, repose, health, or peach of the public of any person using or occupying other property in the vicinity. The criteria in the tables above are assumed to be A-weighted levels (dBA), since this is standard practice and Noise Element provides sound data in terms of dBA. In addition to the short-duration event criteria, the Noise Element also includes a criterion entitled “Allowable Interior Noise Level (dB).” Since a metric is not specified for this criterion, the noise study interprets it to be an hourly LAeq. The maximum levels specified are 40 dB at night and 45 dB during the day.

5. EXISTING CONDITIONS Ambient Noise Levels Noise level monitoring was conducted at four locations within the Project Site vicinity, as shown in Figure 3, Noise Monitoring Locations. Noise level monitoring was conducted for 15-minute intervals at each location between the hours of 7:13 AM and 8:20 AM using a Larson Davis Model 831 sound-level meter as seen in Appendix A for data sheet and are summarized in Table 3, Ambient Noise Measurements. As shown in Table 3, ambient noise levels ranged from a low of 51.1 dBA along the alley, north of the Project Site (Site 1) to a high of 68.2 dBA along Grand Avenue, south of the Project Site (Site 3). Higher ambient noise levels were located along E. Grand Avenue and S. San Gabriel Boulevard due to heavy vehicular traffic.

8 American Legal Publishing Corporation, San Gabriel, CA Municipal Code, Accessed at library.amlegal.com/nxt/gateway.dll/California/sangab/sangabrielcaliforniamunicipalcode?f=templates$fn=default.htm$3.0$vi d=amlegal:sangabriel_ca.

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Legend # Noise Monitor Project Site 0 75 150 300 3 N SCALE IN FEET SOURCE: Google Earth - 2018 FIGURE 3 Noise Monitor Locations

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Table 3 Ambient Noise Measurements

dBA Location Number/Description Time Period Noise Source Leq Along residential units alley; north of the Distant vehicular traffic along 1 7:13 AM – 7:28 AM 51.1 Project Site S. San Gabriel Boulevard In parking lot of residences; south of the Light vehicular traffic along S. 2 7:48 AM – 8:03 AM 57.5 Project Site Gladys Avenue Along E. Grand Avenue; further south of Moderate vehicular traffic 3 8:05 AM – 8:20 AM 68.2 the Project Site along E. Grand Avenue Along S. Gladys Avenue; west of the Light vehicular traffic along S. 4 7:31 AM – 7:46 AM 64.1 Project Site Gladys Avenue

Source: Refer to Appendix A for noise monitoring data sheets. Note: dBA = A-weighted decibels; Leq = average equivalent sound level.

Existing Off-Site Roadway Noise Levels The average daily trips (ADTs) for local roadway segments were obtained from the traffic impact analysis for the Project prepared by Associated Transportation Engineers.9 The estimated existing roadway noise levels are provided in Table 4, Existing Roadway Noise Levels. As indicated in Table 4, the existing modeled vehicle-generated noise levels along roadway segments near the proposed Project Site range from a low of 40.2 dBA CNEL at E. El Monte Street, east of S. Gladys Avenue (Intersection 2), to a high of 65.3 dBA CNEL at S San Gabriel Boulevard, for both north of E. El Monte Street (Intersection 1) and E. Grand Avenue (Intersection 3). Existing Vibration Conditions Based on field observations, the primary source of existing ground-borne vibration in the vicinity of the Project Site is vehicle traffic on local roadways. According to the FTA,10 typical road traffic–induced vibration levels are unlikely to be perceptible by people. Trucks and buses typically generate ground-borne vibration velocity levels of approximately 63 VdB (at a 50-foot distance), and these levels could reach 72 VdB when trucks and buses pass over bumps in the road. A vibration level of 72 VdB is above the 60 VdB level of perceptibility.

9 Associated Transportation Engineers, Rio Urbana Residential and Office Development Traffic and Circulation Study, July 25, 2017. 10 Federal Transit Administration, Transit Noise and Vibration Impact Assessment (2004).

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Table 4 Existing Roadway Noise Levels

Intersection # Time Period Roadway Noise Roadway Segment Level (dBA CNEL) E. El Monte Street 1 AM 44.9 East of S San Gabriel Boulevard PM 46.4 AM 49.7 West of S San Gabriel Boulevard PM 50.5 2 AM 40.9 East of S Gladys Avenue PM 40.2 AM 45.7 West of S Gladys Avenue PM 46.2 E. Grand Avenue 3 AM 52.6 East of S San Gabriel Boulevard PM 52.5 AM 43.3 West of S San Gabriel Boulevard PM 44.2 4 AM 53.4 East of S Gladys Avenue PM 53.3 AM 52.7 West of S Gladys Avenue PM 52.7 E. Mission Road 5 AM 62.6 East of S San Gabriel Boulevard PM 62.0 AM 61.8 West of S San Gabriel Boulevard PM 61.0 6 AM 62.8 East of S Gladys Avenue PM 62.4 AM 62.6 West of S Gladys Avenue PM 62.3 S. San Gabriel Boulevard 1 AM 65.3 North of E El Monte Street PM 65.2 AM 65.2 South of E El Monte Street PM 65.1 3 AM 65.3 North of E Grand Avenue PM 65.1

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Intersection # Time Period Roadway Noise Roadway Segment Level (dBA CNEL) AM 65.0 South of E Grand Avenue PM 64.9 5 AM 65.0 North of E Mission Road PM 64.9 AM 64.7 South of E Mission Road PM 64.7 S. Gladys Avenue 2 AM 44.0 North of E El Monte Street PM 45.8 AM 46.6 South of E El Monte Street PM 46.8 4 AM 45.7 North of E Grand Avenue PM 47.4 AM 47.7 South of E Grand Avenue PM 46.7 6 AM 48.9 North of E Mission Road PM 48.3 AM 50.7 South of E Mission Road PM 48.7 ______Source: Traffic noise model results are provided in Appendix B. Note: Roadway noise levels are modeled 75 feet from the center of the roadway.

Sensitive Receptors

Certain land uses are considered more sensitive than others. These uses include residential areas, educational facilities, hospitals, childcare facilities, and senior living. The residences directly north and south of the Project Site represent the nearest sensitive receptors that could be impacted from noise due to construction and operation of the Proposed Project.

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6. IMPACT ANALYSIS Construction Noise

Construction activities that would occur during the construction phases would generate both steady-state and episodic noise that would be heard both on and off the Project Site. Typical maximum noise levels and duty cycles of representative types of equipment are presented in Table 5, Typical Maximum Noise Levels for Construction Equipment. Construction equipment noise would not be constant because of the variations of power, cycles, and equipment locations. For maximum noise events, this analysis considers equipment operating at the edge of the property line of the Project Site.

Table 5 Typical Maximum Noise Levels for Construction Equipment Equipment Description Noise Level at 50 feet (dBA) Typical Duty Cycle (%) Auger drill rig 84 20 Backhoe 78 40 Chain saw 84 20 Compressor (air) 78 40 Concrete mixer truck 79 40 Concrete pump truck 81 20 Concrete/Industrial saw 90 20 Crane 81 16 Dozer 82 40 Dump truck 76 40 Excavator 81 40 Front end loader 79 40 Generator (25 kVA or less) 73 50 Generator (more than 25 kVA) 81 50 Grader 85 40 Paver 77 50 Pneumatic tool 85 50 Pump 81 50 Rock drill 81 20 Scraper 84 40 Tractor 84 40 Vacuum excavator (vac-truck) 85 40 Vibratory concrete mixer 80 20 ______Source: U.S. DOT, FHWA Construction Equipment and Noise Level Ranges. Note: kVA = kilovolt-ampere

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The noise levels at the various distances from construction activity are shown in Table 6, Construction Noise Estimates. Equipment estimates and noise levels used for the analysis during the construction phases (site preparation/grading, building construction, paving, and architectural coating) are representative of worst-case conditions because it is very unlikely that all the equipment contained on the Project Site would operate simultaneously. Construction equipment operates at its nosiest levels for certain percentages of time during operation. Equipment such as excavators, graders, and loaders would operate at different percentages over the course of an hour.11 Construction activities would be limited to Monday through Friday between 7:00 AM and 7:00 PM; Saturday between 8:00 AM and 5:00 PM; and at no time on Sundays or holidays.

Table 6 Construction Noise Estimates

Receptor Distance Estimated Construction Noise Levels by Phase, dBA Ambient Maximum ID from Site Preparation/ Building Paving Architectural Noise Noise Project Site Grading Construction Coating level Exceedance, (feet) Leq (dBA) REC-1 50 93.3 92.2 90.3 74.0 51.1 42.2 REC-2 25 99.3 98.2 96.4 80.0 57.5 41.8 REC-3 215 81.5 80.4 78.5 62.2 68.2 13.3 REC-4 60 91.7 90.6 88.8 72.4 64.1 27.6 ______Source: Refer to Appendix B for construction noise worksheets. dB(A) = A-weighted decibel; Leq = equivalent sound level.

Receptor 1 (REC-1) are residential units located directly north of the Project Site boundary (as shown in Figure 3). When all pieces of equipment are operating at the same time at the edge of the Project Site boundary, which is a conservative estimate, construction noise levels at this Project Site would increase ambient noise levels by approximately 42.2 dB.

Receptor 2 (REC-2) are residential units located directly south of the Project Site boundary (as shown in Figure 3). When all pieces of equipment are operating at the same at the edge of the Project Site boundary, which is a conservative estimate, construction noise levels at this Project Site would increase ambient noise levels by 41.8 dB.

Receptor 3 (REC-3) are residential units located 195 feet to the south of the Project Site boundary across E Grand Avenue (as shown in Figure 3). It is important to note these residences are facing toward E. Grand Avenue, and have residential structures and vegetation between the receptor and the boundary. As such, when all pieces of equipment are operating at the same time at the edge of the Project Site boundary

11 Federal Highway Administration, Traffic Noise Model (2006).

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without any noise-shielding reductions, which is a conservative estimate, construction noise levels at this Project Site would increase ambient noise levels by 13.3 dB.

Receptor 4 (REC-4) is a nursery along with a residential unit located 60 feet to the west of the Project Site boundary across S. Gladys Avenue (as shown in Figure 3). As such, when all pieces of equipment are operating at the same time at the edge of the Project Site boundary without any noise-shielding reductions, which is a conservative estimate, construction noise levels at this Project Site would increase ambient noise levels by 27.6 dB.

With implementation of the recommended Mitigation Measure N-1, construction activities would include the use of a temporary noise barriers or noise blankets, which would result in a minimum of 15 dBA reduction. For instance, a sound curtain with a sound transmission classification rating of 25 could reduce noise levels from 15 to 22 dBA.12 Furthermore, standard exhaust mufflers for all equipment and the break in line of sight to a sensitive receptor would reduce construction noise levels by approximately 7 dBA. With implementation of these recommended measures, construction noise impacts would not be considered significant.

Also, during most of construction, equipment would not be operated at the property line adjacent to the residential uses. Sound generated by the construction noise source typically diminishes at a rate of 6 dBA over hard surfaces, such as asphalt, and 7.5 dBA over soft surfaces, such as vegetation, for each doubling of distance. Barriers—such as walls, berms, or buildings, and elevation differences—can also reduce sound levels by up to 20 dBA.13

Construction Vibration

Table 7, Construction Vibration Levels Estimates, lists the vibration source levels at varying distances of the assumed construction equipment to be used for during construction. As shown in Table 7, crushing equipment are capable of producing approximately 0.063 inches per second PPV at 25 feet, however would not generate vibration levels in excess of 0.5 inches per second PPV. As such, the residential units (REC-1, REC-2, REC-3, REC-4) located nearest to the Project Site with regard to construction vibration activities would not be affected as a result of attenuation of ground-borne vibration. Furthermore, construction activities would be restricted to daytime hours when people are the least sensitive to vibration intrusions.

12 Behrens and Associates Environmental Noise Control, “Temporary Compressor Sound Walls,” http://www.drillingnoisecontrol.com/tempcompressor.html. 13 Caltrans, Technical Noise Supplement (1998), pp. 33–40, 123–131.

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Table 7 Construction Vibration Levels Estimates

Equipment Inches per seconds PPV at Adjusted Distance REC-1 REC-2 REC-3 REC-4 50 feet 25 feet 195 feet 60 feet Air Compressors 0.008 0.022 0.001 0.009 Cement and Mortar Mixers 0.004 0.010 0.000 0.003 Concrete/Industrial Saws 0.003 0.009 0.000 0.002 Cranes 0.005 0.014 0.001 0.004 Crawler Tractors 0.013 0.036 0.002 0.010 Crushing/Proc. Equipment 0.022 0.063 0.003 0.017 Excavators 0.004 0.010 0.000 0.003 Generator Sets 0.003 0.009 0.000 0.002 Graders 0.006 0.018 0.001 0.005 Paving Equipment 0.006 0.016 0.001 0.004 Plate Compactors 0.004 0.013 0.001 0.003 Rollers 0.002 0.005 0.000 0.001 Rough Terrain Forklifts 0.004 0.010 0.000 0.003 Rubber Tired Loaders 0.006 0.018 0.001 0.005 Scrapers 0.005 0.014 0.001 0.004 Skid Steer Loaders 0.013 0.036 0.002 0.010 Tractors/Loaders/Backhoes 0.011 0.030 0.001 0.008 Trenchers 0.005 0.014 0.001 0.004 Welders 0.014 0.040 0.000 0.003

Source: Office of Planning and Environment, Federal Transit Administration, Transit Noise and Vibration Impact Assessment, FTA-VA-90-1003-06 (May 2006), 12-9.

Operational Noise

The Proposed Project would introduce various stationary noise sources, including heating, ventilation, and air condition (HVAC) systems, which would be located either on the roof, the side of a structure or on the ground. Typically, this type of equipment produces noise levels of approximately 56.0 dBA. This equipment would be screened and integrated in architectural design of the building and would further attenuate sound emanating from the HVAC systems. As the sound distance doubles to 100 feet from the equipment, sound levels would be 50 dBA. As such, the use of such equipment would not generate levels that would substantially elevate the ambient noise environment.

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Roadway noise levels were modeled to determine if operation of the Proposed Project would result in exceedance of the City’s interior and exterior noise standards for residential and commercial uses along utilized roadways. In addition, roadway noise levels were modeled to determine if operation of the proposed Project would increase roadway noise levels greater than 5 dBA or more along residential uses when post-Project noise levels are less than 60 dBA; 3 dBA or more when post-Project noise levels are between 60 and 65 dBA; and 1.5 dBA or more when post-Project noise levels are greater than 65 dBA. The model considers roadway noise levels from local street segments that would have an increase or decrease in vehicle traffic as a result of the Proposed Project.

Table 8, Existing plus Project Roadway Noise Levels, illustrates the change in CNEL from existing traffic volumes and existing plus project traffic volumes. The difference in traffic noise between existing conditions and Proposed Project conditions represents the increase in noise attributable to Project- related traffic. As shown in Table 8, maximum noise level increases along roadways adjacent to residential and commercial uses by traffic from the Proposed Project would range from a low of 0.0 dBA (several locations throughout the Project Site vicinity) to a high of 2.2 dBA at S. Gladys Avenue, north of E. Grand Avenue (Intersection 4). The roadway noise level along Stroube Street would be 42.6 dBA CNEL, and would fall below the residential and commercial exterior noise level standard.

The Proposed Project interior noise levels by traffic would be attenuated by 25 dBA from outdoor noise levels. Roadway noise levels at S. San Gabriel Avenue, north of E. El Monte Street and E. Grand Avenue (Intersection 1 and 3) would be 65.3 dBA CNEL, similar to existing conditions. Based on attenuation from outdoor to indoor noise levels, interior noise levels would be 40.3 dBA, below the 45 dBA threshold for residential and commercial uses.

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Table 8 Existing plus Project Roadway Noise Levels

Intersection # Time Roadway Existing Change Exceed Roadway Segment Period Noise Level Noise Level (dBA CNEL) Threshold? (dBA CNEL) (dBA CNEL) E. El Monte Street 1 East of S San AM 45.3 44.9 0.4 No Gabriel Boulevard PM 46.9 46.4 0.5 No West of S San AM 49.7 49.7 0.0 No Gabriel Boulevard PM 50.6 50.5 0.1 No 2 East of S Gladys AM 40.9 40.9 0.0 No Avenue PM 40.2 40.2 0.0 No West of S Gladys AM 46.1 45.7 0.4 No Avenue PM 46.7 46.2 0.5 No Project Driveway a 7 East of S Gladys AM 37.1 - No Avenue PM 38.9 - No West of S Gladys AM - - No Avenue PM - - No E. Grand Avenue 3 East of S San AM 52.7 52.6 0.1 No Gabriel Boulevard PM 52.7 52.5 0.2 No AM 43.3 43.3 0 No West of S San Gabriel Boulevard PM 44.3 44.2 0.1 No 4 East of S Gladys AM 53.7 53.4 0.3 No Avenue PM 53.4 53.3 0.1 No West of S Gladys AM 52.8 52.7 0.1 No Avenue PM 52.9 52.7 0.2 No E. Mission Road 5 East of S San AM 62.6 62.6 0.0 No Gabriel Boulevard PM 62.0 62.0 0.0 No West of S San AM 61.8 61.8 0.0 No Gabriel Boulevard PM 61.0 61.0 0.0 No 6 East of S Gladys AM 62.9 62.8 0.1 No Avenue PM 62.4 62.4 0.0 No AM 62.6 62.6 0.0 No

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Intersection # Time Roadway Existing Change Exceed Roadway Segment Period Noise Level Noise Level (dBA CNEL) Threshold? (dBA CNEL) (dBA CNEL) West of S Gladys PM 62.3 62.3 0.0 No Avenue S. San Gabriel Boulevard 1 North of E El AM 65.3 65.3 0.0 No Monte Street PM 65.2 65.2 0.0 No South of E El AM 65.2 65.2 0.0 No Monte Street PM 65.1 65.1 0.0 No 3 North of E Grand AM 65.3 65.3 0.0 No Avenue PM 65.1 65.1 0.0 No South of E Grand AM 65.0 65.0 0.0 No Avenue PM 64.9 64.9 0.0 No 5 North of E Mission AM 65.0 65.0 0.0 No Road PM 64.9 64.9 0.0 No South of E Mission AM 64.7 64.7 0.0 No Road PM 64.8 64.7 0.1 No S. Gladys Avenue 2 North of E El AM 44.0 44.0 0.0 No Monte Street PM 45.8 45.8 0.0 No South of E El AM 46.8 46.6 0.2 No Monte Street PM 47.3 46.8 0.5 No b 7 North of Project AM 49.8 - - No Driveway PM 48.7 - - No South of Project AM 50.3 - - No Driveway PM 49.6 - - No 4 North of E Grand AM 47.9 45.7 2.2 No Avenue PM 48.4 47.4 1 No South of E Grand AM 48.0 47.7 0.3 No Avenue PM 47.2 46.7 0.5 No 6 North of E Mission AM 49.1 48.9 0.2 No Road PM 48.6 48.3 0.3 No South of E Mission AM 50.7 50.7 0.0 No Road PM 48.7 48.7 0.0 No ______Source: Traffic noise model results are provided in Appendix B. Note: Roadway noise levels are modeled 75 feet from the center of the roadway. a: (-) indicates Project driveway does not have any traffic counts west of Gladys Avenue. b: (-) There is no existing driveway for the Project Site.

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General Plan Consistency

Table 9, City of San Gabriel General Plan Applicable Goals & Policies evaluates the Proposed Project’s consistency with the applicable goals provided in the City’s General Plan to determine whether the Project will result in adverse impacts to noise. Based on the evaluation, the Project would be consistent with all feasible and applicable goals listed in the City’s General Plan.

Table 9 City of San Gabriel General Plan Applicable Goals & Policies

Goal Consistency

9.4: Protect residents from the Consistent. The Proposed Project would be compliant with the latest Title harmful effects of noise from 24 requirements which includes standards for new construction of, and mechanical equipment and trucks additions and alterations to, residential and non-residential buildings. As discussed above, interior noise levels would be below the 45 dBA threshold for the residential uses. 9.6: Promote the health of our Consistent. The Proposed Project would develop an Assisted Living and community by protecting it from Memory Care Facility. Implementation of the Proposed Project would not the harmful effects of noise. exceed any applicable thresholds including to the nearest sensitive receptors. As such, the Proposed Project would protect the health of the community from harmful effects of noise.

7. CUMULATIVE ANALYSIS

For purposes of this analysis, development of the related projects will be considered to contribute to cumulative noise impacts. Noise by definition is a localized phenomenon, and drastically reduces as distance from the source increases. As a result, only project and growth in the general area of the Project Site would contribute to cumulative noise impacts.

Construction

Noise impacts are localized in nature and decrease with distance. Cumulative construction noise impacts have the potential to occur when multiple construction projects in the local area generate noise within the same time frame and contribute to the local ambient noise environment. The nearest related project (835 E. El Monte Street) is located approximately 0.1 miles to the north. Based on the noise levels generated by construction activities associated with the Project Site, the duration of construction activities (intermittently over 15 months), and the proximity of the sensitive receptors, construction noise from the Project would contribute to the cumulative noise environment. It is expected that, as with the Project, the related projects would implement best management practices, which would minimize any

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noise-related nuisances during construction. Therefore, the combined construction noise impact of the related projects and the Project’s contribution would not cause a significant cumulative impact.

Related projects are not located close enough to the Project Site (approximately 0.1 miles) or have enough existing structures in between to result in vibration impacts from concurrent construction. Therefore, the combined vibration impact of the related projects and the Project’s contribution would not cause a significant cumulative impact.

Operation

With regard to stationary sources, cumulative significant noise impacts may result from cumulative development. Stationary sources of noise that could be introduced in the area by cumulative projects could include mechanical equipment, loading docks, and parking lots. Since these projects would be required to adhere to the City of San Gabriel noise standards, all the stationary sources would be required to provide shielding or other noise abatement measures so as not to cause a substantial increase in ambient noise levels. Moreover, due to distance, it is unlikely that noise from multiple cumulative projects would interact to create a significant combined noise impact. As such, it is not anticipated that a significant cumulative increase in permanent ambient noise levels would occur.

A substantial permanent increase is most likely to originate from an increase in noise levels due to roadway traffic. Table 10, Cumulative plus Project Roadway Noise Levels, illustrates the change in CNEL from cumulative traffic volumes and cumulative plus Project traffic volumes. As shown in Table 10, maximum cumulative noise level increases along roadways adjacent to residential and commercial uses by traffic from the proposed Project would range from a low of 0.0 dBA (several locations throughout the vicinity of the Project Site) to a high of 2.6 dBA at S. Gladys Avenue, north of E. El Monte Street (Intersection 2).

The proposed Project interior noise levels by attributed by roadway traffic would be attenuated by 25 dBA from outdoor noise levels. Roadway noise levels at S. San Gabriel Avenue, north and south of the E. El Monte Street (Intersection 1), would be 65.6 dBA CNEL, similar to existing conditions. Based on attenuation from outdoor to indoor noise levels, interior noise levels would be 40.6 dBA, below the 45 dBA threshold for residential and commercial uses.

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Table 10 Cumulative plus Project Roadway Noise Levels

Intersection # Time Roadway Existing Change Exceed Roadway Segment Period Noise Level Noise Level (dBA CNEL) Threshold? (dBA CNEL) (dBA CNEL) E. El Monte Street 1 East of S San AM 47.1 44.9 2.2 No Gabriel Boulevard PM 48.5 46.4 2.1 No West of S San AM 49.8 49.7 0.1 No Gabriel Boulevard PM 50.7 50.5 0.2 No 2 East of S Gladys AM 40.9 40.9 0.0 No Avenue PM 40.2 40.2 0.0 No West of S Gladys AM 47.6 45.7 1.9 No Avenue PM 48.3 46.2 2.1 No Project Driveway a 7 East of S Gladys AM 37.1 - - No Avenue PM 38.9 - - No West of S Gladys AM - - - No Avenue PM - - - No E. Grand Avenue 3 East of S San AM 52.8 52.6 0.2 No Gabriel Boulevard PM 52.6 52.5 0.1 No West of S San AM 43.3 43.3 0 No Gabriel Boulevard PM 44.3 44.2 0.1 No 4 East of S Gladys AM 53.7 53.4 0.3 No Avenue PM 53.5 53.3 0.2 No West of S Gladys AM 52.9 52.7 0.2 No Avenue PM 52.9 52.7 0.2 No E. Mission Road 5 East of S San AM 62.7 62.6 0.1 No Gabriel Boulevard PM 62.1 62.0 0.1 No West of S San AM 61.9 61.8 0.1 No Gabriel Boulevard PM 61.1 61.0 0.1 No 6 East of S Gladys AM 63.0 62.8 0.2 No Avenue PM 62.6 62.4 0.2 No West of S Gladys AM 62.7 62.6 0.1 No Avenue PM 62.4 62.3 0.1 No S. San Gabriel Boulevard 1 AM 65.6 65.3 0.3 No

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Intersection # Time Roadway Existing Change Exceed Roadway Segment Period Noise Level Noise Level (dBA CNEL) Threshold? (dBA CNEL) (dBA CNEL) North of E El PM 65.5 65.2 0.3 No Monte Street South of E El AM 65.5 65.2 0.3 No Monte Street PM 65.5 65.1 0.4 No 3 North of E Grand AM 65.6 65.3 0.3 No Avenue PM 65.5 65.1 0.4 No South of E Grand AM 65.4 65.0 0.4 No Avenue PM 65.3 64.9 0.4 No 5 North of E Mission AM 65.4 65.0 0.4 No Road PM 65.3 64.9 0.4 No South of E Mission AM 65.1 64.7 0.4 No Road PM 65.2 64.7 0.5 No S. Gladys Avenue 2 North of E El AM 46.6 44.0 2.6 No Monte Street PM 47.9 45.8 2.1 No South of E El AM 47.1 46.6 0.5 No Monte Street PM 47.5 46.8 0.7 No b 7 North of Project AM 50.1 - - No Driveway PM 50.7 - - No South of Project AM 50.5 - - No Driveway PM 51.2 - - No 4 North of E Grand AM 47.9 45.7 2.2 No Avenue PM 48.7 47.4 1.3 No South of E Grand AM 48.0 47.7 0.3 No Avenue PM 47.3 46.7 0.6 No 6 North of E Mission AM 49.2 48.9 0.3 No Road PM 48.8 48.3 0.5 No South of E Mission AM 50.7 50.7 0.0 No Road PM 48.7 48.7 0.0 No ______Source: Traffic noise model results are provided in Appendix B. Note: Roadway noise levels are modeled 75 feet from the center of the roadway. a: Project driveway does not have any traffic counts west of Gladys Avenue b: There is no existing driveway for the Project Site

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8. CONCLUSIONS

The following noise attenuation measures are provided to reduce noise impacts during construction activities.

N-1: For all construction-related activities, noise-attenuation techniques shall be employed as needed to ensure that noise remains as low as possible during construction, specifically at REC-1 through REC-4. The following noise-attenuation techniques shall be incorporated into contract specifications to reduce the impact of construction noise:

• Ensure that construction equipment is properly muffled according to industry standards and in good working condition.

• Place noise-generating construction equipment and locate construction-staging areas away from sensitive uses, where feasible.

• Schedule high noise-producing activities between the hours of 7:00 AM and 7:00 PM on weekdays to minimize disruption on sensitive uses. No construction shall be permitted on Sundays or any of the holidays listed in the San Gabriel Municipal Code.

• Implement noise attenuation measures to the extent feasible, which may include but are not limited to temporary noise barriers or noise blankets around stationary construction noise sources.

• Use electric air compressors and similar power tools rather than diesel equipment, where feasible.

• All stationary construction equipment (e.g., air compressors, generators, impact wrenches, etc.) shall be operated as far away from residential uses as possible and shall be shielded with temporary sound barriers, sound aprons, or sound skins.

• Construction-related equipment, including heavy-duty equipment, motor vehicles, and portable equipment, shall be turned off when not in use for more than 30 minutes.

• Clearly post construction hours, allowable workdays, and the phone number of the job superintendent at all construction entrances to allow for surrounding owners to contact the job superintendent. If the City or the job superintendent receives a complaint, the superintendent shall investigate, take appropriate corrective action, and report the action taken to the reporting party.

Meridian Consultants 27 Symphony at San Gabriel Assisted Living 188-001-17 April 2018 APPENDIX A Noise Monitoring Data Sheets Summary File Name on Meter METER_2_.012 File Name on PC SLM_0003171_METER_2__012.00.ldbin Serial Number 0003171 Model Model 831 Firmware Version 2.310 User Location Job Description Note

Measurement Description Start 2017-12-14 07:13:35 Stop 2017-12-14 07:29:36 Duration 00:16:00.6 Run Time 00:16:00.6 Pause 00:00:00.0

Pre Calibration 2017-12-14 07:08:54 Post Calibration None Calibration Deviation ---

Overall Settings RMS Weight A Weighting Peak Weight A Weighting Detector Slow Preamp PRM831 Microphone Correction Off Integration Method Linear OBA Range Low OBA Bandwidth 1/1 and 1/3 OBA Freq. Weighting A Weighting OBA Max Spectrum Bin Max Gain 20.0 dB Overload 124.4 dB A C Z Under Range Peak 57.0 54.0 59.0 dB Under Range Limit 24.7 25.2 32.5 dB Noise Floor 15.6 16.1 21.0 dB

Results LAeq 51.2 dB LAE 81.0 dB EA 14.012 µPa²h LApeak (max) 2017-12-14 07:14:50 84.3 dB LASmax 2017-12-14 07:27:36 61.4 dB LASmin 2017-12-14 07:15:44 46.8 dB SEA -99.9 dB

LAS > 80.0 dB (Exceedance Counts / Duration) 0 0.0 s LAS > 85.0 dB (Exceedance Counts / Duration) 0 0.0 s LApeak > 135.0 dB (Exceedance Counts / Duration) 0 0.0 s LApeak > 137.0 dB (Exceedance Counts / Duration) 0 0.0 s LApeak > 140.0 dB (Exceedance Counts / Duration) 0 0.0 s

Community Noise Ldn LDay 07:00-22:00 LNight 22:00-07:00 Lden LDay 07:00-19:00 LEvening 19:00-22:00 51.2 51.2 -99.9 51.2 51.2 -99.9

LCeq 66.8 dB LAeq 51.2 dB LCeq - LAeq 15.6 dB LAIeq 53.3 dB LAeq 51.2 dB LAIeq - LAeq 2.1 dB A C Z dB Time Stamp dB Time Stamp dB Time Stamp Leq 51.2 66.8 69.9 LS(max) 61.4 2017/12/14 7:27:36 77.9 2017/12/14 7:27:35 78.7 2017/12/14 7:25:07 LF(max) 66.2 2017/12/14 7:26:16 80.8 2017/12/14 7:19:01 82.7 2017/12/14 7:25:07 LI(max) 69.8 2017/12/14 7:26:16 82.9 2017/12/14 7:19:01 84.7 2017/12/14 7:25:07 LS(min) 46.8 2017/12/14 7:15:44 62.7 2017/12/14 7:15:44 65.6 2017/12/14 7:15:41 LF(min) 45.9 2017/12/14 7:15:44 60.4 2017/12/14 7:15:44 63.4 2017/12/14 7:22:40 LI(min) 46.4 2017/12/14 7:15:44 63.9 2017/12/14 7:13:47 66.7 2017/12/14 7:13:35 LPeak(max) 84.3 2017/12/14 7:14:50 87.9 2017/12/14 7:19:01 88.5 2017/12/14 7:19:01

# Overloads 0 Overload Duration 0.0 s # OBA Overloads 2.0 OBA Overload Duration 4.0 s

Statistics LAS0.00 -99.9 dB LAS1.70 57.2 dB LAS8.30 53.1 dB LAS25.00 51.6 dB LAS50.00 50.2 dB LAS66.60 49.5 dB

Measurement Description Start 2017-12-14 07:48:31 Stop 2017-12-14 08:04:32 Duration 00:16:00.8 Run Time 00:16:00.8 Pause 00:00:00.0

Pre Calibration 2017-12-14 07:08:54 Post Calibration None Calibration Deviation ---

Results LAeq 57.4 dB LAE 87.2 dB EA 58.435 µPa²h LApeak (max) 2017-12-14 07:49:54 90.2 dB LASmax 2017-12-14 07:49:54 77.6 dB LASmin 2017-12-14 08:04:25 48.5 dB SEA -99.9 dB

Community Noise Ldn LDay 07:00-22:00 LNight 22:00-07:00 Lden LDay 07:00-19:00 LEvening 19:00-22:00 57.4 57.4 -99.9 57.4 57.4 -99.9

LCeq 70.8 dB LAeq 57.4 dB LCeq - LAeq 13.5 dB LAIeq 60.1 dB LAeq 57.4 dB LAIeq - LAeq 2.7 dB A C Z dB Time Stamp dB Time Stamp dB Time Stamp Leq 57.4 70.8 72.9 LS(max) 77.6 2017/12/14 7:49:54 91.4 2017/12/14 7:49:54 91.6 2017/12/14 7:49:54 LF(max) 80.8 2017/12/14 7:49:54 94.5 2017/12/14 7:49:54 94.7 2017/12/14 7:49:54 LI(max) 81.8 2017/12/14 7:49:54 95.9 2017/12/14 7:49:54 96.0 2017/12/14 7:49:54 LS(min) 48.5 2017/12/14 8:04:25 63.9 2017/12/14 7:57:39 66.7 2017/12/14 7:57:39 LF(min) 47.7 2017/12/14 7:55:25 61.7 2017/12/14 7:55:25 64.8 2017/12/14 7:57:19 LI(min) 48.1 2017/12/14 8:04:24 64.8 2017/12/14 7:57:39 67.7 2017/12/14 7:57:37 LPeak(max) 90.2 2017/12/14 7:49:54 103.3 2017/12/14 7:49:54 103.5 2017/12/14 7:49:54

# Overloads 0 Overload Duration 0.0 s # OBA Overloads 8.0 OBA Overload Duration 28.9 s

Statistics LAS0.00 -99.9 dB LAS1.70 64.7 dB LAS8.30 60.4 dB LAS25.00 55.7 dB LAS50.00 54.0 dB LAS66.60 53.0 dB

Measurement Description Start 2017-12-14 08:05:34 Stop 2017-12-14 08:21:34 Duration 00:16:00.5 Run Time 00:16:00.5 Pause 00:00:00.0

Pre Calibration 2017-12-14 07:08:54 Post Calibration None Calibration Deviation ---

Results LAeq 68.1 dB LAE 98.0 dB EA 693.554 µPa²h LApeak (max) 2017-12-14 08:11:15 103.6 dB LASmax 2017-12-14 08:11:16 89.2 dB LASmin 2017-12-14 08:15:24 49.5 dB SEA -99.9 dB

LAS > 80.0 dB (Exceedance Counts / Duration) 2 9.7 s LAS > 85.0 dB (Exceedance Counts / Duration) 2 5.0 s LApeak > 135.0 dB (Exceedance Counts / Duration) 0 0.0 s LApeak > 137.0 dB (Exceedance Counts / Duration) 0 0.0 s LApeak > 140.0 dB (Exceedance Counts / Duration) 0 0.0 s

Community Noise Ldn LDay 07:00-22:00 LNight 22:00-07:00 Lden LDay 07:00-19:00 LEvening 19:00-22:00 68.1 68.1 -99.9 68.1 68.1 -99.9

LCeq 75.8 dB LAeq 68.1 dB LCeq - LAeq 7.7 dB LAIeq 70.2 dB LAeq 68.1 dB LAIeq - LAeq 2.1 dB A C Z dB Time Stamp dB Time Stamp dB Time Stamp Leq 68.1 75.8 77.1 LS(max) 89.2 2017/12/14 8:11:16 98.5 2017/12/14 8:08:08 99.2 2017/12/14 8:08:08 LF(max) 91.3 2017/12/14 8:11:16 101.8 2017/12/14 8:08:08 102.4 2017/12/14 8:08:08 LI(max) 92.3 2017/12/14 8:11:15 102.7 2017/12/14 8:08:08 103.4 2017/12/14 8:08:08 LS(min) 49.5 2017/12/14 8:15:24 63.3 2017/12/14 8:13:21 65.9 2017/12/14 8:13:24 LF(min) 48.4 2017/12/14 8:15:20 61.9 2017/12/14 8:13:21 64.3 2017/12/14 8:13:21 LI(min) 49.1 2017/12/14 8:15:20 64.4 2017/12/14 8:14:43 67.0 2017/12/14 8:15:18 LPeak(max) 103.6 2017/12/14 8:11:15 109.9 2017/12/14 8:08:08 110.5 2017/12/14 8:08:08

# Overloads 0 Overload Duration 0.0 s # OBA Overloads 68.0 OBA Overload Duration 229.5 s

Statistics LAS0.00 -99.9 dB LAS1.70 75.3 dB LAS8.30 70.4 dB LAS25.00 66.5 dB LAS50.00 60.6 dB LAS66.60 56.6 dB

Measurement Description Start 2017-12-14 07:31:14 Stop 2017-12-14 07:47:14 Duration 00:16:00.5 Run Time 00:16:00.5 Pause 00:00:00.0

Pre Calibration 2017-12-14 07:08:54 Post Calibration None Calibration Deviation ---

Results LAeq 64.0 dB LAE 93.8 dB EA 267.016 µPa²h LApeak (max) 2017-12-14 07:43:26 98.5 dB LASmax 2017-12-14 07:43:26 80.6 dB LASmin 2017-12-14 07:41:08 50.5 dB SEA -99.9 dB

LAS > 80.0 dB (Exceedance Counts / Duration) 2 2.4 s LAS > 85.0 dB (Exceedance Counts / Duration) 0 0.0 s LApeak > 135.0 dB (Exceedance Counts / Duration) 0 0.0 s LApeak > 137.0 dB (Exceedance Counts / Duration) 0 0.0 s LApeak > 140.0 dB (Exceedance Counts / Duration) 0 0.0 s

Community Noise Ldn LDay 07:00-22:00 LNight 22:00-07:00 Lden LDay 07:00-19:00 LEvening 19:00-22:00 64.0 64.0 -99.9 64.0 64.0 -99.9

LCeq 74.3 dB LAeq 64.0 dB LCeq - LAeq 10.3 dB LAIeq 67.0 dB LAeq 64.0 dB LAIeq - LAeq 3.1 dB A C Z dB Time Stamp dB Time Stamp dB Time Stamp Leq 64.0 74.3 76.3 LS(max) 80.6 2017/12/14 7:43:26 92.6 2017/12/14 7:43:27 94.8 2017/12/14 7:43:27 LF(max) 85.3 2017/12/14 7:43:30 95.2 2017/12/14 7:43:27 97.1 2017/12/14 7:43:27 LI(max) 87.1 2017/12/14 7:43:30 96.1 2017/12/14 7:43:27 98.2 2017/12/14 7:43:27 LS(min) 50.5 2017/12/14 7:41:08 65.3 2017/12/14 7:35:03 67.3 2017/12/14 7:35:49 LF(min) 49.9 2017/12/14 7:41:13 63.4 2017/12/14 7:35:28 65.5 2017/12/14 7:35:26 LI(min) 50.3 2017/12/14 7:41:17 66.1 2017/12/14 7:35:03 68.2 2017/12/14 7:35:48 LPeak(max) 98.5 2017/12/14 7:43:26 102.5 2017/12/14 7:43:26 104.8 2017/12/14 7:43:27

# Overloads 0 Overload Duration 0.0 s # OBA Overloads 22.0 OBA Overload Duration 102.3 s

Statistics LAS0.00 -99.9 dB LAS1.70 76.4 dB LAS8.30 67.2 dB LAS25.00 56.5 dB LAS50.00 54.2 dB LAS66.60 53.6 dB

Calibration History Preamp Date dB re. 1V/Pa 6.3 8.0 10.0 PRM831 2017-12-14 07:08:54 -27.0 53.1 57.5 54.8 PRM831 2017-12-14 07:08:39 -27.0 61.1 40.4 58.9 PRM831 2017-12-13 09:35:17 -26.5 40.2 50.7 37.7 PRM831 2017-12-13 09:35:03 -26.5 59.0 55.2 56.5 PRM831 2017-11-28 09:18:27 -26.4 57.0 63.1 61.9 PRM831 2017-11-28 09:18:12 -26.5 55.6 68.1 63.3 PRM831 2017-11-28 08:09:51 -26.5 61.0 55.2 71.3 PRM831 2017-11-28 08:08:44 -26.6 56.2 65.9 70.4 PRM831 2017-11-27 07:50:38 -26.4 63.5 51.4 44.9 PRM831 2017-11-22 07:27:06 -26.4 62.8 57.3 46.7 PRM831 2017-11-22 07:26:43 -26.5 44.0 54.6 54.5 APPENDIX B Roadway Traffic Noise Spreadsheets Project Name rev. (Date) If Peak Hour = 6% of ADT, Scaling Factor = 16.667 Weekday AM/PM Peak Hour Volumes If Peak Hour = 7% of ADT, Scaling Factor = 14.286 If Peak Hour = 8% of ADT, Scaling Factor = 12.5 Intersection: 1 If Peak Hour = 9% of ADT, Scaling Factor = 11.111 S San Gabriel Boulevard and E El Monte Street If Peak Hour = 10% of ADT, Scaling Factor = 10 ADT S San Gabriel Boulevard Road S San Gabriel Boulevard E El Monte Street Southbound Leg North of South of East of West of right through left Cross Street E El Monte Street S San Gabriel Boulevard Existing 2017 19 1,393 8 Existing 2017 23,560.0 23,024.0 400.0 1,208.0 Existing Plus Project 19 1,393 11 Existing Plus Proj 23,592.0 23,024.0 440.0 1,216.0 Future 2020 19 1,507 9 Future 2020 25,392.0 24,952.0 632.0 1,232.0 Future Plus Project 19 1,507 12 Future Plus Proje 25,424.0 24,952.0 672.0 1,240.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Eastbound Westbound 0.0 0.0 0.0 0.0 left through right right through left Existing 2017 72 7 20 Existing 2017 17 11 6 Existing Plus Project 72 8 20 Existing Plus Project 18 11 6 Future 2020 73 7 20 N Future 2020 23 13 22 Future Plus Project 73 8 20 W E Future Plus Project 24 13 22 S E El Monte Street

Northbound left through right Existing 2017 22 1,436 1 Existing Plus Project 22 1,436 1 Future 2020 22 1,543 5 Future Plus Project 22 1,543 5

ApxB_SG_AM 2 NOISE LEVEL CONTOURS - Existing Plus Project Weekday Off-Site ADT Volumes

Traffic Volumes Ref . Energy L evel s Di st Ld Le Ln Desi gn Di st. f rom Barrier Vehicle Mix ROADWAY NAME M edi an ADT Speed Center to Alpha Attn. Medium Heavy dB(A) Day Eve Ni ght MTd HTd MTe HTe MTn HTn A MT HT Adj A MT HT Total A MT HT Total A MT HT Total Segment Land Use L anes Width Vol ume (mph) ReceptorFactor (1) dB(A) Trucks Trucks CNEL S San Gabriel Boulevard n/o Existing 2017 4 0 23,560 35 75 0 0 1.8% 0.7% 65.3 18,306 2,992 2,262 371 147 21 5 32 13 65.1 74.8 80.0 -1.7 64.4 57.3 58.5 66.0 61.4 49.7 48.3 61.9 48.2 47.8 49.2 53.2 Existing Plus Project 4 0 23,592 35 75 0 0 1.8% 0.7% 65.3 18,331 2,996 2,265 371 147 21 5 32 13 65.1 74.8 80.0 -1.7 64.4 57.3 58.5 66.0 61.4 49.7 48.3 61.9 48.2 47.8 49.2 53.2 Future 2020 4 0 25,392 35 75 0 0 1.8% 0.7% 65.6 19,730 3,225 2,438 400 158 23 5 34 14 65.1 74.8 80.0 -1.7 64.7 57.6 58.8 66.3 61.7 50.0 48.6 62.2 48.5 48.1 49.6 53.6 Future Plus Project 4 0 25,424 35 75 0 0 1.8% 0.7% 65.6 19,754 3,229 2,441 400 159 23 5 34 14 65.1 74.8 80.0 -1.7 64.7 57.6 58.8 66.3 61.7 50.0 48.6 62.2 48.5 48.1 49.6 53.6

S San Gabriel Boulevard s/o Existing 2017 4 0 23,024 35 75 0 0 1.8% 0.7% 65.2 17,890 2,924 2,210 362 144 21 5 31 13 65.1 74.8 80.0 -1.7 64.3 57.2 58.4 65.9 61.3 49.6 48.2 61.8 48.1 47.7 49.1 53.1 Existing Plus Project 4 0 23,024 35 75 0 0 1.8% 0.7% 65.2 17,890 2,924 2,210 362 144 21 5 31 13 65.1 74.8 80.0 -1.7 64.3 57.2 58.4 65.9 61.3 49.6 48.2 61.8 48.1 47.7 49.1 53.1 Future 2020 4 0 24,952 35 75 0 0 1.8% 0.7% 65.5 19,388 3,169 2,395 393 156 23 5 34 14 65.1 74.8 80.0 -1.7 64.6 57.5 58.7 66.2 61.6 49.9 48.6 62.1 48.4 48.1 49.5 53.5 Future Plus Project 4 0 24,952 35 75 0 0 1.8% 0.7% 65.5 19,388 3,169 2,395 393 156 23 5 34 14 65.1 74.8 80.0 -1.7 64.6 57.5 58.7 66.2 61.6 49.9 48.6 62.1 48.4 48.1 49.5 53.5

E El M onte Str eet e/o S San Existing 2017 2 0 400 25 75 0 0 1.8% 0.7% 44.9 311 51 38 6 2 0 0 1 0 59.4 71.1 78.7 -1.8 42.3 37.2 40.8 45.4 39.4 29.6 30.6 40.3 26.2 27.7 31.6 33.9 Existing Plus Project 2 0 440 25 75 0 0 1.8% 0.7% 45.3 342 56 42 7 3 0 0 1 0 59.4 71.1 78.7 -1.8 42.8 37.6 41.2 45.8 39.8 30.0 31.1 40.7 26.6 28.1 32.0 34.3 Future 2020 2 0 632 25 75 0 0 1.8% 0.7% 46.8 491 80 61 10 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.3 39.2 42.8 47.4 41.3 31.6 32.6 42.3 28.2 29.7 33.6 35.9 Future Plus Project 2 0 672 25 75 0 0 1.8% 0.7% 47.1 522 85 65 11 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.6 39.4 43.1 47.6 41.6 31.8 32.9 42.5 28.4 30.0 33.8 36.1

E El M onte Str eet w/o S San Existing 2017 2 0 1,208 25 75 0 0 1.8% 0.7% 49.7 939 153 116 19 8 1 0 2 1 59.4 71.1 78.7 -1.8 47.1 42.0 45.6 50.2 44.2 34.4 35.4 45.1 31.0 32.5 36.4 38.7 Existing Plus Project 2 0 1,216 25 75 0 0 1.8% 0.7% 49.7 945 154 117 19 8 1 0 2 1 59.4 71.1 78.7 -1.8 47.2 42.0 45.6 50.2 44.2 34.4 35.5 45.1 31.0 32.6 36.4 38.7 Future 2020 2 0 1,232 25 75 0 0 1.8% 0.7% 49.7 957 156 118 19 8 1 0 2 1 59.4 71.1 78.7 -1.8 47.2 42.1 45.7 50.3 44.2 34.5 35.5 45.2 31.1 32.6 36.5 38.8 Future Plus Project 2 0 1,240 25 75 0 0 1.8% 0.7% 49.8 963 157 119 20 8 1 0 2 1 59.4 71.1 78.7 -1.8 47.3 42.1 45.7 50.3 44.3 34.5 35.6 45.2 31.1 32.6 36.5 38.8 (1) Alpha Factor: Coef f i ci ent of absorpti on relating to the ef f ects of the ground surf ace. An alpha f actor of 0 indicates that the si te is an acoustically "hard" si te such as aspal t. An alpha f actor of 0.5 indicates that the si te isan acoustically " sof t" si te such as vegetati ve ground cover.

Assumed 24-Hour Traffic Distribution: Day Evening Ni ght Total ADT Vol umes 77.70% 12.70% 9.60% Medium-Duty Trucks 87.43% 5.05% 7.52% Heavy-Duty Trucks 89.10% 2.84% 8.06% Project Name rev. (Date) If Peak Hour = 6% of ADT, Scaling Factor = 16.667 Weekday AM/PM Peak Hour Volumes If Peak Hour = 7% of ADT, Scaling Factor = 14.286 If Peak Hour = 8% of ADT, Scaling Factor = 12.5 Intersection: 2 If Peak Hour = 9% of ADT, Scaling Factor = 11.111 S Gladys Avenue and E El Monte Street If Peak Hour = 10% of ADT, Scaling Factor = 10 ADT S Gladys Avenue Road S Gladys Avenue E El Monte Street Southbound Leg North of South of East of West of right through left Cross Street E El Monte Street S Gladys Avenue Existing 2017 0 7 0 Existing 2017 328.0 592.0 160.0 488.0 Existing Plus Project 0 7 0 Existing Plus Pro 328.0 632.0 160.0 528.0 Future 2020 24 10 0 Future 2020 592.0 624.0 160.0 720.0 Future Plus Project 24 10 0 Future Plus Proje 592.0 664.0 160.0 760.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Eastbound Westbound 0.0 0.0 0.0 0.0 left through right right through left Existing 2017 6 1 10 Existing 2017 1 16 1 Existing Plus Project 6 1 13 Existing Plus Project 1 16 1 Future 2020 11 1 10 N Future 2020 1 16 1 Future Plus Project 11 1 13 W E Future Plus Project 1 16 1 S E El Monte Street

Northbound left through right Existing 2017 28 27 1 Existing Plus Project 30 27 1 Future 2020 28 28 1 Future Plus Project 30 28 1 2 NOISE LEVEL CONTOURS - Existing Plus Project Weekday Off-Site ADT Volumes

Traffic Volumes Ref . Energy L evel sDi st Ld Le Ln Desi gn Dist. from Barri er Vehicle Mix ROADWAY NAME M edi an ADT Speed Center to Alpha Attn. Medium Heavy dB(A) Day Eve Night MTd HTd MTe HTe MTn HTn A MT HT Adj A MT HT Total A MT HT Total A MT HT Total Segment Land Use L anes Width Volume (mph) ReceptorFactor (1) dB(A) Trucks Trucks CNEL S Gladys Avenue n/o E El Existing 2017 2 0 328 25 75 0 0 1.8% 0.7% 44.0 255 42 31 5 2 0 0 0 0 59.4 71.1 78.7 -1.8 41.5 36.3 39.9 44.5 38.5 28.7 29.8 39.4 25.3 26.9 30.7 33.0 Existing Plus Project 2 0 328 25 75 0 0 1.8% 0.7% 44.0 255 42 31 5 2 0 0 0 0 59.4 71.1 78.7 -1.8 41.5 36.3 39.9 44.5 38.5 28.7 29.8 39.4 25.3 26.9 30.7 33.0 Future 2020 2 0 592 25 75 0 0 1.8% 0.7% 46.6 460 75 57 9 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.0 38.9 42.5 47.1 41.1 31.3 32.3 42.0 27.9 29.4 33.3 35.6 Future Plus Project 2 0 592 25 75 0 0 1.8% 0.7% 46.6 460 75 57 9 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.0 38.9 42.5 47.1 41.1 31.3 32.3 42.0 27.9 29.4 33.3 35.6

S Gladys Avenue s/o E El Existing 2017 2 0 592 25 75 0 0 1.8% 0.7% 46.6 460 75 57 9 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.0 38.9 42.5 47.1 41.1 31.3 32.3 42.0 27.9 29.4 33.3 35.6 Existing Plus Project 2 0 632 25 75 0 0 1.8% 0.7% 46.8 491 80 61 10 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.3 39.2 42.8 47.4 41.3 31.6 32.6 42.3 28.2 29.7 33.6 35.9 Future 2020 2 0 624 25 75 0 0 1.8% 0.7% 46.8 485 79 60 10 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.3 39.1 42.7 47.3 41.3 31.5 32.6 42.2 28.1 29.7 33.5 35.8 Future Plus Project 2 0 664 25 75 0 0 1.8% 0.7% 47.1 516 84 64 10 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.5 39.4 43.0 47.6 41.6 31.8 32.8 42.5 28.4 29.9 33.8 36.1

E El M onte Str eet e/o S Existing 2017 2 0 160 25 75 0 0 1.8% 0.7% 40.9 124 20 15 3 1 0 0 0 0 59.4 71.1 78.7 -1.8 38.4 33.2 36.8 41.4 35.4 25.6 26.7 36.3 22.2 23.7 27.6 29.9 Existing Plus Project 2 0 160 25 75 0 0 1.8% 0.7% 40.9 124 20 15 3 1 0 0 0 0 59.4 71.1 78.7 -1.8 38.4 33.2 36.8 41.4 35.4 25.6 26.7 36.3 22.2 23.7 27.6 29.9 Future 2020 2 0 160 25 75 0 0 1.8% 0.7% 40.9 124 20 15 3 1 0 0 0 0 59.4 71.1 78.7 -1.8 38.4 33.2 36.8 41.4 35.4 25.6 26.7 36.3 22.2 23.7 27.6 29.9 Future Plus Project 2 0 160 25 75 0 0 1.8% 0.7% 40.9 124 20 15 3 1 0 0 0 0 59.4 71.1 78.7 -1.8 38.4 33.2 36.8 41.4 35.4 25.6 26.7 36.3 22.2 23.7 27.6 29.9

E El Monte Street w/o S Existing 2017 2 0 488 25 75 0 0 1.8% 0.7% 45.7 379 62 47 8 3 0 0 1 0 59.4 71.1 78.7 -1.8 43.2 38.0 41.7 46.2 40.2 30.5 31.5 41.2 27.0 28.6 32.4 34.7 Existing Plus Project 2 0 528 25 75 0 0 1.8% 0.7% 46.1 410 67 51 8 3 0 0 1 0 59.4 71.1 78.7 -1.8 43.5 38.4 42.0 46.6 40.6 30.8 31.9 41.5 27.4 28.9 32.8 35.1 Future 2020 2 0 720 25 75 0 0 1.8% 0.7% 47.4 559 91 69 11 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.9 39.7 43.4 47.9 41.9 32.1 33.2 42.8 28.7 30.3 34.1 36.4 Future Plus Project 2 0 760 25 75 0 0 1.8% 0.7% 47.6 591 97 73 12 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.1 40.0 43.6 48.2 42.1 32.4 33.4 43.1 29.0 30.5 34.4 36.7 (1) Alpha Factor: Coef f i ci ent of absorption rel ati ng to the ef f ects of the ground surf ace. An alpha f actor of 0 indicates that the si te isan acoustically "hard" si te such as aspal t. An alpha f actor of 0.5 indicates that the si te isan acoustically " sof t" si te such as vegetative ground cover.

Assumed 24-Hour Traffic Distribution: Day Evening Night Total ADT Volumes 77.70% 12.70% 9.60% Medium-Duty Trucks 87.43% 5.05% 7.52% Heavy-Duty Trucks 89.10% 2.84% 8.06% Project Name rev. (Date) If Peak Hour = 6% of ADT, Scaling Factor = 16.667 Weekday AM/PM Peak Hour Volumes If Peak Hour = 7% of ADT, Scaling Factor = 14.286 If Peak Hour = 8% of ADT, Scaling Factor = 12.5 Intersection: 3 If Peak Hour = 9% of ADT, Scaling Factor = 11.111 S San Gabriel Boulevard and E Grand Avenue If Peak Hour = 10% of ADT, Scaling Factor = 10 ADT S San Gabriel Boulevard Road S San Gabriel Boulevard E Grand Avenue Southbound Leg North of South of East of West of right through left Cross Street E Grand Avenue S San Gabriel Boulevard Existing 2017 12 1,334 93 Existing 2017 23,552.0 22,072.0 2,384.0 280.0 Existing Plus Project 12 1,334 93 Existing Plus Pro 23,552.0 22,136.0 2,448.0 280.0 Future 2020 12 1,463 95 Future 2020 25,488.0 23,984.0 2,424.0 280.0 Future Plus Project 12 1,463 95 Future Plus Proje 25,488.0 24,048.0 2,488.0 280.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Eastbound Westbound 0.0 0.0 0.0 0.0 left through right right through left Existing 2017 8 6 0 Existing 2017 134 6 7 Existing Plus Project 8 6 0 Existing Plus Project 134 6 8 Future 2020 8 6 0 N Future 2020 136 6 7 Future Plus Project 8 6 0 W E Future Plus Project 136 6 8 S E Grand Avenue Grand E

Northbound left through right Existing 2017 3 1,363 52 Existing Plus Project 3 1,363 59 Future 2020 3 1,472 53 Future Plus Project 3 1,472 60 2 NOISE LEVEL CONTOURS - Existing Plus Project Weekday Off-Site ADT Volumes

Traffic Volumes Ref . Energy L evel s Di st Ld Le Ln Desi gn Di st. f rom Barrier Vehicle Mix ROADWAY NAME M edi an ADT Speed Center to Alpha Attn. Medium Heavy dB(A) Day Eve Ni ght MTd HTd MTe HTe MTn HTn A MT HT Adj A MT HT Total A MT HT Total A MT HT Total Segment Land Use L anes Width Vol ume (mph) ReceptorFactor (1) dB(A) Trucks Trucks CNEL S San Gabriel Boulevard n/o Existing 2017 4 0 23,552 35 75 0 0 1.8% 0.7% 65.3 18,300 2,991 2,261 371 147 21 5 32 13 65.1 74.8 80.0 -1.7 64.4 57.3 58.5 66.0 61.4 49.7 48.3 61.9 48.2 47.8 49.2 53.2 Existing Plus Project 4 0 23,552 35 75 0 0 1.8% 0.7% 65.3 18,300 2,991 2,261 371 147 21 5 32 13 65.1 74.8 80.0 -1.7 64.4 57.3 58.5 66.0 61.4 49.7 48.3 61.9 48.2 47.8 49.2 53.2 Future 2020 4 0 25,488 35 75 0 0 1.8% 0.7% 65.6 19,804 3,237 2,447 401 159 23 5 35 14 65.1 74.8 80.0 -1.7 64.7 57.6 58.8 66.3 61.7 50.0 48.6 62.2 48.5 48.2 49.6 53.6 Future Plus Project 4 0 25,488 35 75 0 0 1.8% 0.7% 65.6 19,804 3,237 2,447 401 159 23 5 35 14 65.1 74.8 80.0 -1.7 64.7 57.6 58.8 66.3 61.7 50.0 48.6 62.2 48.5 48.2 49.6 53.6

S San Gabriel Boulevard s/o Existing 2017 4 0 22,072 35 75 0 0 1.8% 0.7% 65.0 17,150 2,803 2,119 347 138 20 4 30 12 65.1 74.8 80.0 -1.7 64.1 57.0 58.2 65.7 61.1 49.4 48.0 61.6 47.9 47.5 49.0 52.9 Existing Plus Project 4 0 22,136 35 75 0 0 1.8% 0.7% 65.0 17,200 2,811 2,125 348 138 20 4 30 12 65.1 74.8 80.0 -1.7 64.1 57.0 58.2 65.7 61.1 49.4 48.0 61.6 47.9 47.5 49.0 53.0 Future 2020 4 0 23,984 35 75 0 0 1.8% 0.7% 65.4 18,636 3,046 2,302 377 150 22 5 32 14 65.1 74.8 80.0 -1.7 64.4 57.4 58.5 66.1 61.5 49.8 48.4 61.9 48.3 47.9 49.3 53.3 Future Plus Project 4 0 24,048 35 75 0 0 1.8% 0.7% 65.4 18,685 3,054 2,309 378 150 22 5 33 14 65.1 74.8 80.0 -1.7 64.5 57.4 58.6 66.1 61.5 49.8 48.4 62.0 48.3 47.9 49.3 53.3

E Grand Avenue e/o S San Existing 2017 2 0 2,384 25 75 0 0 1.8% 0.7% 52.6 1,852 303 229 38 15 2 0 3 1 59.4 71.1 78.7 -1.8 50.1 44.9 48.6 53.1 47.1 37.3 38.4 48.0 33.9 35.5 39.3 41.6 Existing Plus Project 2 0 2,448 25 75 0 0 1.8% 0.7% 52.7 1,902 311 235 39 15 2 0 3 1 59.4 71.1 78.7 -1.8 50.2 45.0 48.7 53.2 47.2 37.5 38.5 48.2 34.0 35.6 39.4 41.7 Future 2020 2 0 2,424 25 75 0 0 1.8% 0.7% 52.7 1,883 308 233 38 15 2 0 3 1 59.4 71.1 78.7 -1.8 50.2 45.0 48.6 53.2 47.2 37.4 38.5 48.1 34.0 35.5 39.4 41.7 Future Plus Project 2 0 2,488 25 75 0 0 1.8% 0.7% 52.8 1,933 316 239 39 16 2 0 3 1 59.4 71.1 78.7 -1.8 50.3 45.1 48.7 53.3 47.3 37.5 38.6 48.2 34.1 35.7 39.5 41.8

E Grand Avenue w/o S San Existing 2017 2 0 280 25 75 0 0 1.8% 0.7% 43.3 218 36 27 4 2 0 0 0 0 59.4 71.1 78.7 -1.8 40.8 35.6 39.3 43.8 37.8 28.0 29.1 38.7 24.6 26.2 30.0 32.3 Existing Plus Project 2 0 280 25 75 0 0 1.8% 0.7% 43.3 218 36 27 4 2 0 0 0 0 59.4 71.1 78.7 -1.8 40.8 35.6 39.3 43.8 37.8 28.0 29.1 38.7 24.6 26.2 30.0 32.3 Future 2020 2 0 280 25 75 0 0 1.8% 0.7% 43.3 218 36 27 4 2 0 0 0 0 59.4 71.1 78.7 -1.8 40.8 35.6 39.3 43.8 37.8 28.0 29.1 38.7 24.6 26.2 30.0 32.3 Future Plus Project 2 0 280 25 75 0 0 1.8% 0.7% 43.3 218 36 27 4 2 0 0 0 0 59.4 71.1 78.7 -1.8 40.8 35.6 39.3 43.8 37.8 28.0 29.1 38.7 24.6 26.2 30.0 32.3 (1) Alpha Factor: Coef f i ci ent of absorpti on relating to the ef f ects of the ground surf ace. An alpha f actor of 0 indicates that the si te is an acoustically "hard" si te such as aspal t. An alpha f actor of 0.5 indicates that the si te isan acoustically " sof t" si te such as vegetati ve ground cover.

Assumed 24-Hour Traffic Distribution: Day Evening Ni ght Total ADT Vol umes 77.70% 12.70% 9.60% Medium-Duty Trucks 87.43% 5.05% 7.52% Heavy-Duty Trucks 89.10% 2.84% 8.06% Project Name rev. (Date) If Peak Hour = 6% of ADT, Scaling Factor = 16.667 Weekday AM/PM Peak Hour Volumes If Peak Hour = 7% of ADT, Scaling Factor = 14.286 If Peak Hour = 8% of ADT, Scaling Factor = 12.5 Intersection: 4 If Peak Hour = 9% of ADT, Scaling Factor = 11.111 S Gladys Avenue and E Grand Avenue If Peak Hour = 10% of ADT, Scaling Factor = 10 ADT S Gladys Avenue Road S Gladys Avenue E Grand Avenue Southbound Leg North of South of East of West of right through left Cross Street E Grand Avenue S Gladys Avenue Existing 2017 0 7 0 Existing 2017 488.0 768.0 2,856.0 2,432.0 Existing Plus Project 2 10 21 Existing Plus Pro 768.0 800.0 3,032.0 2,504.0 Future 2020 0 9 22 Future 2020 688.0 792.0 3,080.0 2,464.0 Future Plus Project 2 12 23 Future Plus Proje 808.0 824.0 3,096.0 2,536.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Eastbound Westbound 0.0 0.0 0.0 0.0 left through right right through left Existing 2017 3 144 13 Existing 2017 31 135 33 Existing Plus Project 10 144 13 Existing Plus Project 32 135 33 Future 2020 3 146 13 N Future 2020 32 137 34 Future Plus Project 10 146 13 W E Future Plus Project 33 137 34 S E Grand Avenue Grand E

Northbound left through right Existing 2017 9 20 14 Existing Plus Project 9 21 14 Future 2020 9 20 14 Future Plus Project 9 21 14 2 NOISE LEVEL CONTOURS - Existing Plus Project Weekday Off-Site ADT Volumes

Traf f i c V ol umes Ref . Energy L evel s Di st Ld Le Ln Desi gn Di st. f rom Barri er V ehi cl e M i x ROADWAY NAME M edi an ADT Speed Center to Alpha Attn. Medium Heavy dB(A) Day Eve Night MTd HTd MTe HTe MTn HTn A MT HT Adj A MT HT Total A MT HT Total A MT HT Total Segment Land Use L anes Width V olume (mph) ReceptorFactor (1) dB(A) Trucks Trucks CNEL S Gladys Avenue n/o E Existing 2017 2 0 488 25 75 0 0 1.8% 0.7% 45.7 379 62 47 8 3 0 0 1 0 59.4 71.1 78.7 -1.8 43.2 38.0 41.7 46.2 40.2 30.5 31.5 41.2 27.0 28.6 32.4 34.7 Existing Plus Project 2 0 768 25 75 0 0 1.8% 0.7% 47.7 597 98 74 12 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.2 40.0 43.6 48.2 42.2 32.4 33.5 43.1 29.0 30.6 34.4 36.7 Future 2020 2 0 688 25 75 0 0 1.8% 0.7% 47.2 535 87 66 11 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.7 39.5 43.2 47.7 41.7 31.9 33.0 42.6 28.5 30.1 33.9 36.2 Future Plus Project 2 0 808 25 75 0 0 1.8% 0.7% 47.9 628 103 78 13 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.4 40.2 43.9 48.4 42.4 32.6 33.7 43.3 29.2 30.8 34.6 36.9

S Gladys Avenue s/o E Grand Existing 2017 2 0 768 25 75 0 0 1.8% 0.7% 47.7 597 98 74 12 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.2 40.0 43.6 48.2 42.2 32.4 33.5 43.1 29.0 30.6 34.4 36.7 Existing Plus Project 2 0 800 25 75 0 0 1.8% 0.7% 47.9 622 102 77 13 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.4 40.2 43.8 48.4 42.4 32.6 33.7 43.3 29.2 30.7 34.6 36.9 Future 2020 2 0 792 25 75 0 0 1.8% 0.7% 47.8 615 101 76 12 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.3 40.1 43.8 48.3 42.3 32.6 33.6 43.3 29.1 30.7 34.5 36.8 Future Plus Project 2 0 824 25 75 0 0 1.8% 0.7% 48.0 640 105 79 13 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.5 40.3 43.9 48.5 42.5 32.7 33.8 43.4 29.3 30.9 34.7 37.0

E Grand Avenue e/o S Gladys Existing 2017 2 0 2,856 25 75 0 0 1.8% 0.7% 53.4 2,219 363 274 45 18 3 1 4 2 59.4 71.1 78.7 -1.8 50.9 45.7 49.3 53.9 47.9 38.1 39.2 48.8 34.7 36.3 40.1 42.4 Existing Plus Project 2 0 3,032 25 75 0 0 1.8% 0.7% 53.7 2,356 385 291 48 19 3 1 4 2 59.4 71.1 78.7 -1.8 51.1 46.0 49.6 54.2 48.2 38.4 39.4 49.1 35.0 36.5 40.4 42.7 Future 2020 2 0 3,080 25 75 0 0 1.8% 0.7% 53.7 2,393 391 296 48 19 3 1 4 2 59.4 71.1 78.7 -1.8 51.2 46.0 49.7 54.2 48.2 38.5 39.5 49.2 35.0 36.6 40.4 42.7 Future Plus Project 2 0 3,096 25 75 0 0 1.8% 0.7% 53.7 2,406 393 297 49 19 3 1 4 2 59.4 71.1 78.7 -1.8 51.2 46.1 49.7 54.3 48.2 38.5 39.5 49.2 35.1 36.6 40.5 42.8

E Grand Avenue w/o S Existing 2017 2 0 2,432 25 75 0 0 1.8% 0.7% 52.7 1,890 309 233 38 15 2 0 3 1 59.4 71.1 78.7 -1.8 50.2 45.0 48.6 53.2 47.2 37.4 38.5 48.1 34.0 35.6 39.4 41.7 Existing Plus Project 2 0 2,504 25 75 0 0 1.8% 0.7% 52.8 1,946 318 240 39 16 2 0 3 1 59.4 71.1 78.7 -1.8 50.3 45.1 48.8 53.3 47.3 37.6 38.6 48.3 34.1 35.7 39.5 41.8 Future 2020 2 0 2,464 25 75 0 0 1.8% 0.7% 52.8 1,915 313 237 39 15 2 0 3 1 59.4 71.1 78.7 -1.8 50.2 45.1 48.7 53.3 47.3 37.5 38.5 48.2 34.1 35.6 39.5 41.8 Future Plus Project 2 0 2,536 25 75 0 0 1.8% 0.7% 52.9 1,970 322 243 40 16 2 1 3 1 59.4 71.1 78.7 -1.8 50.4 45.2 48.8 53.4 47.4 37.6 38.7 48.3 34.2 35.7 39.6 41.9 (1) Alpha Factor: Coef f i ci ent of absorption rel ati ng to the ef f ects of the ground surf ace. An al pha f actor of 0 i ndi cates that the si te is an acousti cal l y "hard" si te such as aspal t. An al pha f actor of 0.5 i ndi cates that the si te isan acousti cal l y " sof t" si te such as vegetati ve ground cover.

Assumed 24-Hour Traffic Distribution: Day Evening Night Total A DT V ol umes 77.70% 12.70% 9.60% Medium-Duty Trucks 87.43% 5.05% 7.52% Heavy-Duty Trucks 89.10% 2.84% 8.06% Project Name rev. (Date) If Peak Hour = 6% of ADT, Scaling Factor = 16.667 Weekday AM/PM Peak Hour Volumes If Peak Hour = 7% of ADT, Scaling Factor = 14.286 If Peak Hour = 8% of ADT, Scaling Factor = 12.5 Intersection: 5 If Peak Hour = 9% of ADT, Scaling Factor = 11.111 S San Gabriel Boulevard and E Mission Road If Peak Hour = 10% of ADT, Scaling Factor = 10 ADT S San Gabriel Boulevard Road S San Gabriel Boulevard E Mission Road Southbound Leg North of South of East of West of right through left Cross Street E Mission Road S San Gabriel Boulevard Existing 2017 19 1,210 94 Existing 2017 21,936.0 20,688.0 12,696.0 10,744.0 Existing Plus Project 19 1,211 94 22,000.0 20,744.0 12,712.0 10,768.0 Future 2020 21 1,327 104 23,848.0 22,456.0 13,024.0 10,960.0 Future Plus Project 21 1,328 104 23,912.0 22,512.0 13,040.0 10,984.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Eastbound Westbound 0.0 0.0 0.0 0.0 left through right right through left Existing 2017 55 398 59 Existing 2017 227 750 76 Existing Plus Project 57 398 59 Existing Plus Project 227 751 77 Future 2020 57 406 61 N Future 2020 236 762 77 Future Plus Project 59 406 61 W E Future Plus Project 236 763 78 S E Mission Road Mission E

Northbound left through right Existing 2017 62 1,137 42 Existing Plus Project 62 1,142 42 Future 2020 63 1,236 43 Future Plus Project 63 1,241 43 2 NOISE LEVEL CONTOURS - Existing Plus Project Weekday Off-Site ADT Volumes

Traffic Volumes Ref . Energy L evel s Di st Ld Le Ln Desi gn Di st. f rom Barrier Vehicle Mix ROADWAY NAME M edi an ADT Speed Center to Alpha Attn. Medium Heavy dB(A) Day Eve Ni ght MTd HTd MTe HTe MTn HTn A MT HT Adj A MT HT Total A MT HT Total A MT HT Total Segment Land Use L anes Width Vol ume (mph) ReceptorFactor (1) dB(A) Trucks Trucks CNEL S San Gabriel Boulevard n/o Existing 2017 4 0 21,936 35 75 0 0 1.8% 0.7% 65.0 17,044 2,786 2,106 345 137 20 4 30 12 65.1 74.8 80.0 -1.7 64.1 57.0 58.2 65.7 61.1 49.4 48.0 61.6 47.9 47.5 48.9 52.9 Existing Plus Project 4 0 22,000 35 75 0 0 1.8% 0.7% 65.0 17,094 2,794 2,112 346 137 20 4 30 12 65.1 74.8 80.0 -1.7 64.1 57.0 58.2 65.7 61.1 49.4 48.0 61.6 47.9 47.5 48.9 52.9 Future 2020 4 0 23,848 35 75 0 0 1.8% 0.7% 65.3 18,530 3,029 2,289 375 149 22 5 32 13 65.1 74.8 80.0 -1.7 64.4 57.3 58.5 66.0 61.4 49.7 48.4 61.9 48.2 47.9 49.3 53.3 Future Plus Project 4 0 23,912 35 75 0 0 1.8% 0.7% 65.4 18,580 3,037 2,296 376 149 22 5 32 13 65.1 74.8 80.0 -1.7 64.4 57.3 58.5 66.1 61.4 49.8 48.4 61.9 48.3 47.9 49.3 53.3

S San Gabriel Boulevard s/o Existing 2017 4 0 20,688 35 75 0 0 1.8% 0.7% 64.7 16,075 2,627 1,986 326 129 19 4 28 12 65.1 74.8 80.0 -1.7 63.8 56.7 57.9 65.4 60.8 49.1 47.7 61.3 47.6 47.3 48.7 52.7 Existing Plus Project 4 0 20,744 35 75 0 0 1.8% 0.7% 64.7 16,118 2,634 1,991 326 129 19 4 28 12 65.1 74.8 80.0 -1.7 63.8 56.7 57.9 65.4 60.8 49.1 47.8 61.3 47.6 47.3 48.7 52.7 Future 2020 4 0 22,456 35 75 0 0 1.8% 0.7% 65.1 17,448 2,852 2,156 353 140 20 4 30 13 65.1 74.8 80.0 -1.7 64.2 57.1 58.3 65.8 61.2 49.5 48.1 61.7 48.0 47.6 49.0 53.0 Future Plus Project 4 0 22,512 35 75 0 0 1.8% 0.7% 65.1 17,492 2,859 2,161 354 140 20 4 30 13 65.1 74.8 80.0 -1.7 64.2 57.1 58.3 65.8 61.2 49.5 48.1 61.7 48.0 47.6 49.0 53.0

E M ission Road e/o S San Existing 2017 4 0 12,696 35 75 0 0 1.8% 0.7% 62.6 9,865 1,612 1,219 200 79 12 3 17 7 65.1 74.8 80.0 -1.7 61.7 54.6 55.8 63.3 58.7 47.0 45.6 59.2 45.5 45.1 46.6 50.5 Existing Plus Project 4 0 12,712 35 75 0 0 1.8% 0.7% 62.6 9,877 1,614 1,220 200 79 12 3 17 7 65.1 74.8 80.0 -1.7 61.7 54.6 55.8 63.3 58.7 47.0 45.6 59.2 45.5 45.1 46.6 50.5 Future 2020 4 0 13,024 35 75 0 0 1.8% 0.7% 62.7 10,120 1,654 1,250 205 81 12 3 18 7 65.1 74.8 80.0 -1.7 61.8 54.7 55.9 63.4 58.8 47.1 45.7 59.3 45.6 45.2 46.7 50.7 Future Plus Project 4 0 13,040 35 75 0 0 1.8% 0.7% 62.7 10,132 1,656 1,252 205 81 12 3 18 7 65.1 74.8 80.0 -1.7 61.8 54.7 55.9 63.4 58.8 47.1 45.7 59.3 45.6 45.2 46.7 50.7

E M ission Road w/o S San Existing 2017 2 0 10,744 35 75 0 0 1.8% 0.7% 61.8 8,348 1,364 1,031 169 67 10 2 15 6 65.1 74.8 80.0 -1.8 60.8 53.7 54.9 62.5 57.9 46.2 44.8 58.3 44.7 44.3 45.7 49.7 Existing Plus Project 2 0 10,768 35 75 0 0 1.8% 0.7% 61.8 8,367 1,368 1,034 169 67 10 2 15 6 65.1 74.8 80.0 -1.8 60.8 53.8 55.0 62.5 57.9 46.2 44.8 58.4 44.7 44.3 45.7 49.7 Future 2020 2 0 10,960 35 75 0 0 1.8% 0.7% 61.9 8,516 1,392 1,052 172 68 10 2 15 6 65.1 74.8 80.0 -1.8 60.9 53.8 55.0 62.5 57.9 46.3 44.9 58.4 44.8 44.4 45.8 49.8 Future Plus Project 2 0 10,984 35 75 0 0 1.8% 0.7% 61.9 8,535 1,395 1,054 173 69 10 2 15 6 65.1 74.8 80.0 -1.8 60.9 53.8 55.0 62.6 58.0 46.3 44.9 58.4 44.8 44.4 45.8 49.8 (1) Alpha Factor: Coef f i ci ent of absorpti on relating to the ef f ects of the ground surf ace. An alpha f actor of 0 indicates that the si te is an acoustically "hard" si te such as aspal t. An alpha f actor of 0.5 indicates that the si te isan acoustically " sof t" si te such as vegetati ve ground cover.

Assumed 24-Hour Traffic Distribution: Day Evening Ni ght Total ADT Vol umes 77.70% 12.70% 9.60% Medium-Duty Trucks 87.43% 5.05% 7.52% Heavy-Duty Trucks 89.10% 2.84% 8.06% Project Name rev. (Date) If Peak Hour = 6% of ADT, Scaling Factor = 16.667 Weekday AM/PM Peak Hour Volumes If Peak Hour = 7% of ADT, Scaling Factor = 14.286 If Peak Hour = 8% of ADT, Scaling Factor = 12.5 Intersection: 6 If Peak Hour = 9% of ADT, Scaling Factor = 11.111 S Gladys Avenue and E Mission Road If Peak Hour = 10% of ADT, Scaling Factor = 10 ADT S Gladys Avenue Road S Gladys Avenue E Mission Road Southbound Leg North of South of East of West of right through left Cross Street E Mission Road S Gladys Avenue Existing 2017 51 5 11 Existing 2017 1,024.0 1,536.0 13,424.0 12,544.0 Existing Plus Project 53 5 12 Existing Plus Pro 1,056.0 1,536.0 13,440.0 12,560.0 Future 2020 52 5 13 Future 2020 1,048.0 1,552.0 13,776.0 12,872.0 Future Plus Project 54 5 14 Future Plus Proje 1,080.0 1,552.0 13,792.0 12,888.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Eastbound Westbound 0.0 0.0 0.0 0.0 left through right right through left Existing 2017 22 509 11 Existing 2017 30 968 86 Existing Plus Project 22 509 11 Existing Plus Project 31 968 86 Future 2020 22 527 11 N Future 2020 30 990 87 Future Plus Project 22 527 11 W E Future Plus Project 31 990 87 S E Mission Road Mission E

Northbound left through right Existing 2017 7 9 74 Existing Plus Project 7 9 74 Future 2020 7 9 75 Future Plus Project 7 9 75 2 NOISE LEVEL CONTOURS - Existing Plus Project Weekday Off-Site ADT Volumes

Traffic Volumes Ref . Energy L evel s Di st Ld Le Ln Desi gn Di st. f rom Barrier Vehicle Mix ROADWAY NAME M edi an ADT Speed Center to Alpha Attn. Medium Heavy dB(A) Day Eve Ni ght MTd HTd MTe HTe MTn HTn A MT HT Adj A MT HT Total A MT HT Total A MT HT Total Segment Land Use L anes Width Vol ume (mph) ReceptorFactor (1) dB(A) Trucks Trucks CNEL S Gladys Avenue n/o E Existing 2017 2 0 1,024 25 75 0 0 1.8% 0.7% 48.9 796 130 98 16 6 1 0 1 1 59.4 71.1 78.7 -1.8 46.4 41.3 44.9 49.4 43.4 33.7 34.7 44.4 30.2 31.8 35.7 38.0 Existing Plus Project 2 0 1,056 25 75 0 0 1.8% 0.7% 49.1 821 134 101 17 7 1 0 1 1 59.4 71.1 78.7 -1.8 46.6 41.4 45.0 49.6 43.6 33.8 34.9 44.5 30.4 31.9 35.8 38.1 Future 2020 2 0 1,048 25 75 0 0 1.8% 0.7% 49.0 814 133 101 16 7 1 0 1 1 59.4 71.1 78.7 -1.8 46.5 41.4 45.0 49.6 43.5 33.8 34.8 44.5 30.3 31.9 35.8 38.1 Future Plus Project 2 0 1,080 25 75 0 0 1.8% 0.7% 49.2 839 137 104 17 7 1 0 1 1 59.4 71.1 78.7 -1.8 46.7 41.5 45.1 49.7 43.7 33.9 35.0 44.6 30.5 32.0 35.9 38.2

S Gladys Avenue s/o E Existing 2017 2 0 1,536 25 75 0 0 1.8% 0.7% 50.7 1,193 195 147 24 10 1 0 2 1 59.4 71.1 78.7 -1.8 48.2 43.0 46.7 51.2 45.2 35.4 36.5 46.1 32.0 33.6 37.4 39.7 Existing Plus Project 2 0 1,536 25 75 0 0 1.8% 0.7% 50.7 1,193 195 147 24 10 1 0 2 1 59.4 71.1 78.7 -1.8 48.2 43.0 46.7 51.2 45.2 35.4 36.5 46.1 32.0 33.6 37.4 39.7 Future 2020 2 0 1,552 25 75 0 0 1.8% 0.7% 50.7 1,206 197 149 24 10 1 0 2 1 59.4 71.1 78.7 -1.8 48.2 43.1 46.7 51.3 45.2 35.5 36.5 46.2 32.1 33.6 37.5 39.8 Future Plus Project 2 0 1,552 25 75 0 0 1.8% 0.7% 50.7 1,206 197 149 24 10 1 0 2 1 59.4 71.1 78.7 -1.8 48.2 43.1 46.7 51.3 45.2 35.5 36.5 46.2 32.1 33.6 37.5 39.8

E Mission Road e/o S Gladys Existing 2017 4 0 13,424 35 75 0 0 1.8% 0.7% 62.8 10,430 1,705 1,289 211 84 12 3 18 8 65.1 74.8 80.0 -1.7 61.9 54.8 56.0 63.5 58.9 47.2 45.9 59.4 45.7 45.4 46.8 50.8 Existing Plus Project 4 0 13,440 35 75 0 0 1.8% 0.7% 62.9 10,443 1,707 1,290 212 84 12 3 18 8 65.1 74.8 80.0 -1.7 61.9 54.8 56.0 63.5 58.9 47.3 45.9 59.4 45.8 45.4 46.8 50.8 Future 2020 4 0 13,776 35 75 0 0 1.8% 0.7% 63.0 10,704 1,750 1,322 217 86 13 3 19 8 65.1 74.8 80.0 -1.7 62.0 54.9 56.1 63.7 59.1 47.4 46.0 59.5 45.9 45.5 46.9 50.9 Future Plus Project 4 0 13,792 35 75 0 0 1.8% 0.7% 63.0 10,716 1,752 1,324 217 86 13 3 19 8 65.1 74.8 80.0 -1.7 62.0 54.9 56.1 63.7 59.1 47.4 46.0 59.5 45.9 45.5 46.9 50.9

E Mission Road w/o S Gladys Existing 2017 4 0 12,544 35 75 0 0 1.8% 0.7% 62.6 9,747 1,593 1,204 197 78 11 2 17 7 65.1 74.8 80.0 -1.7 61.6 54.5 55.7 63.2 58.6 47.0 45.6 59.1 45.5 45.1 46.5 50.5 Existing Plus Project 4 0 12,560 35 75 0 0 1.8% 0.7% 62.6 9,759 1,595 1,206 198 78 11 2 17 7 65.1 74.8 80.0 -1.7 61.6 54.5 55.7 63.3 58.7 47.0 45.6 59.1 45.5 45.1 46.5 50.5 Future 2020 4 0 12,872 35 75 0 0 1.8% 0.7% 62.7 10,002 1,635 1,236 203 80 12 3 17 7 65.1 74.8 80.0 -1.7 61.7 54.6 55.8 63.4 58.8 47.1 45.7 59.2 45.6 45.2 46.6 50.6 Future Plus Project 4 0 12,888 35 75 0 0 1.8% 0.7% 62.7 10,014 1,637 1,237 203 80 12 3 17 7 65.1 74.8 80.0 -1.7 61.7 54.7 55.9 63.4 58.8 47.1 45.7 59.2 45.6 45.2 46.6 50.6 (1) Alpha Factor: Coef f i ci ent of absorpti on relating to the ef f ects of the ground surf ace. An alpha f actor of 0 indicates that the si te is an acoustically "hard" si te such as aspal t. An alpha f actor of 0.5 indicates that the si te isan acoustically " sof t" si te such as vegetati ve ground cover.

Assumed 24-Hour Traffic Distribution: Day Evening Ni ght Total ADT Vol umes 77.70% 12.70% 9.60% Medium-Duty Trucks 87.43% 5.05% 7.52% Heavy-Duty Trucks 89.10% 2.84% 8.06% Project Name rev. (Date) If Peak Hour = 6% of ADT, Scaling Factor = 16.667 Weekday AM/PM Peak Hour Volumes If Peak Hour = 7% of ADT, Scaling Factor = 14.286 If Peak Hour = 8% of ADT, Scaling Factor = 12.5 Intersection: 6 If Peak Hour = 9% of ADT, Scaling Factor = 11.111 S Gladys Avenue and Project Driveway If Peak Hour = 10% of ADT, Scaling Factor = 10 ADT S Gladys Avenue Road S Gladys Avenue Project Driveway Southbound Leg North of South of East of West of right through left Cross Street Project Driveway S Gladys Avenue Existing 2017 Existing 2017 0.0 0.0 0.0 0.0 Existing Plus Project 27 3 Existing Plus Pro 688.0 768.0 160.0 0.0 Future 2020 Future 2020 0.0 0.0 0.0 0.0 Future Plus Project 31 3 Future Plus Proje 728.0 808.0 160.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Eastbound Westbound 0.0 0.0 0.0 0.0 left through right right through left Existing 2017 Existing 2017 Existing Plus Project Existing Plus Project 2 5 Future 2020 N Future 2020 Future Plus Project W E Future Plus Project 2 5 S Project Driveway Project

Northbound left through right Existing 2017 Existing Plus Project 54 10 Future 2020 Future Plus Project 55 10 2 NOISE LEVEL CONTOURS - Existing Plus Project Weekday Off-Site ADT Volumes

Traf f i c V ol umes Ref . Energy L evel s Di st Ld Le Ln Desi gn Di st. f rom Barri er V ehi cl e M i x ROADWAY NAME M edi an ADT Speed Center to Alpha Attn. Medium Heavy dB(A) Day Eve Night MTd HTd MTe HTe MTn HTn A MT HT Adj A MT HT Total A MT HT Total A MT HT Total Segment Land Use L anes Width V olume (mph) ReceptorFactor (1) dB(A) Trucks Trucks CNEL S Gladys Avenue n/o Pr oj ect Existing 2017 2 0 0 35 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 65.1 74.8 80.0 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Existing Plus Project 2 0 688 35 75 0 0 1.8% 0.7% 49.8 535 87 66 11 4 1 0 1 0 65.1 74.8 80.0 -1.8 48.9 41.8 43.0 50.5 45.9 34.2 32.8 46.4 32.7 32.4 33.8 37.8 Future 2020 2 0 0 35 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 65.1 74.8 80.0 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Future Plus Project 2 0 728 35 75 0 0 1.8% 0.7% 50.1 566 92 70 11 5 1 0 1 0 65.1 74.8 80.0 -1.8 49.1 42.1 43.3 50.8 46.2 34.5 33.1 46.6 33.0 32.6 34.0 38.0

S Gladys Avenue s/o Pr oj ect Existing 2017 2 0 0 35 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 65.1 74.8 80.0 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Existing Plus Project 2 0 768 35 75 0 0 1.8% 0.7% 50.3 597 98 74 12 5 1 0 1 0 65.1 74.8 80.0 -1.8 49.4 42.3 43.5 51.0 46.4 34.7 33.3 46.9 33.2 32.8 34.3 38.2 Future 2020 2 0 0 35 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 65.1 74.8 80.0 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Future Plus Project 2 0 808 35 75 0 0 1.8% 0.7% 50.5 628 103 78 13 5 1 0 1 0 65.1 74.8 80.0 -1.8 49.6 42.5 43.7 51.2 46.6 34.9 33.5 47.1 33.4 33.1 34.5 38.5

Pr oj ect Dr iveway e/o S Existing 2017 1 0 0 15 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 50.8 65.4 74.5 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Existing Plus Project 1 0 160 15 75 0 0 1.8% 0.7% 37.1 124 20 15 3 1 0 0 0 0 50.8 65.4 74.5 -1.8 32.0 29.7 34.8 37.4 29.0 22.1 24.6 30.9 15.8 20.3 25.5 27.0 Future 2020 1 0 0 15 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 50.8 65.4 74.5 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Future Plus Project 1 0 160 15 75 0 0 1.8% 0.7% 37.1 124 20 15 3 1 0 0 0 0 50.8 65.4 74.5 -1.8 32.0 29.7 34.8 37.4 29.0 22.1 24.6 30.9 15.8 20.3 25.5 27.0

Pr oj ect Dr iveway w/o S Existing 2017 1 0 0 15 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 50.8 65.4 74.5 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Existing Plus Project 1 0 0 15 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 50.8 65.4 74.5 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Future 2020 1 0 0 15 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 50.8 65.4 74.5 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Future Plus Project 1 0 0 15 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 50.8 65.4 74.5 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 (1) Alpha Factor: Coef f i ci ent of absorption rel ati ng to the ef f ects of the ground surf ace. An al pha f actor of 0 i ndi cates that the si te is an acousti cal l y "hard" si te such as aspal t. An al pha f actor of 0.5 i ndi cates that the si te isan acousti cal l y " sof t" si te such as vegetati ve ground cover.

Assumed 24-Hour Traffic Distribution: Day Evening Night Total A DT V ol umes 77.70% 12.70% 9.60% Medium-Duty Trucks 87.43% 5.05% 7.52% Heavy-Duty Trucks 89.10% 2.84% 8.06% Project Name rev. (Date) If Peak Hour = 6% of ADT, Scaling Factor = 16.667 Weekday AM/PM Peak Hour Volumes If Peak Hour = 7% of ADT, Scaling Factor = 14.286 If Peak Hour = 8% of ADT, Scaling Factor = 12.5 Intersection: 1 If Peak Hour = 9% of ADT, Scaling Factor = 11.111 S San Gabriel Boulevard and E El Monte Street If Peak Hour = 10% of ADT, Scaling Factor = 10 ADT S San Gabriel Boulevard Road S San Gabriel Boulevard E El Monte Street Southbound Leg North of South of East of West of right through left Cross Street E El Monte Street S San Gabriel Boulevard Existing 2017 40 1,381 26 Existing 2017 22,872.0 22,352.0 576.0 1,480.0 Existing Plus Project 40 1,381 29 Existing Plus Proj 22,920.0 22,352.0 640.0 1,496.0 Future 2020 41 1,506 32 Future 2020 24,952.0 24,552.0 864.0 1,536.0 Future Plus Project 41 1,506 35 Future Plus Proje 25,000.0 24,552.0 928.0 1,552.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Eastbound Westbound 0.0 0.0 0.0 0.0 left through right right through left Existing 2017 59 10 31 Existing 2017 17 9 5 Existing Plus Project 59 11 31 Existing Plus Project 20 10 5 Future 2020 60 12 32 N Future 2020 20 10 13 Future Plus Project 60 13 32 W E Future Plus Project 23 11 13 S E El Monte Street

Northbound left through right Existing 2017 36 1,336 5 Existing Plus Project 36 1,336 5 Future 2020 37 1,460 21 Future Plus Project 37 1,460 21

ApxB_SG_PM 2 NOISE LEVEL CONTOURS - Existing Plus Project Weekday Off-Site ADT Volumes

Traffic Volumes Ref . Energy L evel s Di st Ld Le Ln Desi gn Di st. f rom Barrier Vehicle Mix ROADWAY NAME M edi an ADT Speed Center to Alpha Attn. Medium Heavy dB(A) Day Eve Ni ght MTd HTd MTe HTe MTn HTn A MT HT Adj A MT HT Total A MT HT Total A MT HT Total Segment Land Use L anes Width Vol ume (mph) ReceptorFactor (1) dB(A) Trucks Trucks CNEL S San Gabriel Boulevard n/o Existing 2017 4 0 22,872 35 75 0 0 1.8% 0.7% 65.2 17,772 2,905 2,196 360 143 21 5 31 13 65.1 74.8 80.0 -1.7 64.2 57.1 58.3 65.9 61.3 49.6 48.2 61.7 48.1 47.7 49.1 53.1 Existing Plus Project 4 0 22,920 35 75 0 0 1.8% 0.7% 65.2 17,809 2,911 2,200 361 143 21 5 31 13 65.1 74.8 80.0 -1.7 64.2 57.2 58.4 65.9 61.3 49.6 48.2 61.7 48.1 47.7 49.1 53.1 Future 2020 4 0 24,952 35 75 0 0 1.8% 0.7% 65.5 19,388 3,169 2,395 393 156 23 5 34 14 65.1 74.8 80.0 -1.7 64.6 57.5 58.7 66.2 61.6 49.9 48.6 62.1 48.4 48.1 49.5 53.5 Future Plus Project 4 0 25,000 35 75 0 0 1.8% 0.7% 65.5 19,425 3,175 2,400 393 156 23 5 34 14 65.1 74.8 80.0 -1.7 64.6 57.5 58.7 66.2 61.6 49.9 48.6 62.1 48.4 48.1 49.5 53.5

S San Gabriel Boulevard s/o Existing 2017 4 0 22,352 35 75 0 0 1.8% 0.7% 65.1 17,368 2,839 2,146 352 139 20 4 30 13 65.1 74.8 80.0 -1.7 64.1 57.0 58.2 65.8 61.2 49.5 48.1 61.6 48.0 47.6 49.0 53.0 Existing Plus Project 4 0 22,352 35 75 0 0 1.8% 0.7% 65.1 17,368 2,839 2,146 352 139 20 4 30 13 65.1 74.8 80.0 -1.7 64.1 57.0 58.2 65.8 61.2 49.5 48.1 61.6 48.0 47.6 49.0 53.0 Future 2020 4 0 24,552 35 75 0 0 1.8% 0.7% 65.5 19,077 3,118 2,357 386 153 22 5 33 14 65.1 74.8 80.0 -1.7 64.5 57.5 58.7 66.2 61.6 49.9 48.5 62.0 48.4 48.0 49.4 53.4 Future Plus Project 4 0 24,552 35 75 0 0 1.8% 0.7% 65.5 19,077 3,118 2,357 386 153 22 5 33 14 65.1 74.8 80.0 -1.7 64.5 57.5 58.7 66.2 61.6 49.9 48.5 62.0 48.4 48.0 49.4 53.4

E El M onte Str eet e/o S San Existing 2017 2 0 576 25 75 0 0 1.8% 0.7% 46.4 448 73 55 9 4 1 0 1 0 59.4 71.1 78.7 -1.8 43.9 38.8 42.4 47.0 40.9 31.2 32.2 41.9 27.7 29.3 33.2 35.5 Existing Plus Project 2 0 640 25 75 0 0 1.8% 0.7% 46.9 497 81 61 10 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.4 39.2 42.9 47.4 41.4 31.6 32.7 42.3 28.2 29.8 33.6 35.9 Future 2020 2 0 864 25 75 0 0 1.8% 0.7% 48.2 671 110 83 14 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.7 40.5 44.2 48.7 42.7 32.9 34.0 43.6 29.5 31.1 34.9 37.2 Future Plus Project 2 0 928 25 75 0 0 1.8% 0.7% 48.5 721 118 89 15 6 1 0 1 1 59.4 71.1 78.7 -1.8 46.0 40.8 44.5 49.0 43.0 33.2 34.3 43.9 29.8 31.4 35.2 37.5

E El M onte Str eet w/o S San Existing 2017 2 0 1,480 25 75 0 0 1.8% 0.7% 50.5 1,150 188 142 23 9 1 0 2 1 59.4 71.1 78.7 -1.8 48.0 42.9 46.5 51.0 45.0 35.3 36.3 46.0 31.8 33.4 37.3 39.6 Existing Plus Project 2 0 1,496 25 75 0 0 1.8% 0.7% 50.6 1,162 190 144 24 9 1 0 2 1 59.4 71.1 78.7 -1.8 48.1 42.9 46.5 51.1 45.1 35.3 36.4 46.0 31.9 33.5 37.3 39.6 Future 2020 2 0 1,536 25 75 0 0 1.8% 0.7% 50.7 1,193 195 147 24 10 1 0 2 1 59.4 71.1 78.7 -1.8 48.2 43.0 46.7 51.2 45.2 35.4 36.5 46.1 32.0 33.6 37.4 39.7 Future Plus Project 2 0 1,552 25 75 0 0 1.8% 0.7% 50.7 1,206 197 149 24 10 1 0 2 1 59.4 71.1 78.7 -1.8 48.2 43.1 46.7 51.3 45.2 35.5 36.5 46.2 32.1 33.6 37.5 39.8 (1) Alpha Factor: Coef f i ci ent of absorpti on relating to the ef f ects of the ground surf ace. An alpha f actor of 0 indicates that the si te is an acoustically "hard" si te such as aspal t. An alpha f actor of 0.5 indicates that the si te isan acoustically " sof t" si te such as vegetati ve ground cover.

Assumed 24-Hour Traffic Distribution: Day Evening Ni ght Total ADT Vol umes 77.70% 12.70% 9.60% Medium-Duty Trucks 87.43% 5.05% 7.52% Heavy-Duty Trucks 89.10% 2.84% 8.06% Project Name rev. (Date) If Peak Hour = 6% of ADT, Scaling Factor = 16.667 Weekday AM/PM Peak Hour Volumes If Peak Hour = 7% of ADT, Scaling Factor = 14.286 If Peak Hour = 8% of ADT, Scaling Factor = 12.5 Intersection: 2 If Peak Hour = 9% of ADT, Scaling Factor = 11.111 S Gladys Avenue and E El Monte Street If Peak Hour = 10% of ADT, Scaling Factor = 10 ADT S Gladys Avenue Road S Gladys Avenue E El Monte Street Southbound Leg North of South of East of West of right through left Cross Street E El Monte Street S Gladys Avenue Existing 2017 15 22 1 Existing 2017 496.0 632.0 136.0 544.0 Existing Plus Project 15 22 1 Existing Plus Pro 496.0 696.0 136.0 608.0 Future 2020 26 24 1 Future 2020 808.0 672.0 136.0 816.0 Future Plus Project 26 24 1 Future Plus Proje 808.0 736.0 136.0 880.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Eastbound Westbound 0.0 0.0 0.0 0.0 left through right right through left Existing 2017 6 5 25 Existing 2017 0 7 3 Existing Plus Project 6 5 29 Existing Plus Project 0 7 3 Future 2020 29 5 25 N Future 2020 0 7 3 Future Plus Project 29 5 29 W E Future Plus Project 0 7 3 S E El Monte Street

Northbound left through right Existing 2017 10 18 1 Existing Plus Project 14 18 1 Future 2020 10 21 1 Future Plus Project 14 21 1 2 NOISE LEVEL CONTOURS - Existing Plus Project Weekday Off-Site ADT Volumes

Traffic Volumes Ref . Energy L evel sDi st Ld Le Ln Desi gn Dist. from Barri er Vehicle Mix ROADWAY NAME M edi an ADT Speed Center to Alpha Attn. Medium Heavy dB(A) Day Eve Night MTd HTd MTe HTe MTn HTn A MT HT Adj A MT HT Total A MT HT Total A MT HT Total Segment Land Use L anes Width Volume (mph) ReceptorFactor (1) dB(A) Trucks Trucks CNEL S Gladys Avenue n/o E El Existing 2017 2 0 496 25 75 0 0 1.8% 0.7% 45.8 385 63 48 8 3 0 0 1 0 59.4 71.1 78.7 -1.8 43.3 38.1 41.7 46.3 40.3 30.5 31.6 41.2 27.1 28.7 32.5 34.8 Existing Plus Project 2 0 496 25 75 0 0 1.8% 0.7% 45.8 385 63 48 8 3 0 0 1 0 59.4 71.1 78.7 -1.8 43.3 38.1 41.7 46.3 40.3 30.5 31.6 41.2 27.1 28.7 32.5 34.8 Future 2020 2 0 808 25 75 0 0 1.8% 0.7% 47.9 628 103 78 13 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.4 40.2 43.9 48.4 42.4 32.6 33.7 43.3 29.2 30.8 34.6 36.9 Future Plus Project 2 0 808 25 75 0 0 1.8% 0.7% 47.9 628 103 78 13 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.4 40.2 43.9 48.4 42.4 32.6 33.7 43.3 29.2 30.8 34.6 36.9

S Gladys Avenue s/o E El Existing 2017 2 0 632 25 75 0 0 1.8% 0.7% 46.8 491 80 61 10 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.3 39.2 42.8 47.4 41.3 31.6 32.6 42.3 28.2 29.7 33.6 35.9 Existing Plus Project 2 0 696 25 75 0 0 1.8% 0.7% 47.3 541 88 67 11 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.7 39.6 43.2 47.8 41.8 32.0 33.1 42.7 28.6 30.1 34.0 36.3 Future 2020 2 0 672 25 75 0 0 1.8% 0.7% 47.1 522 85 65 11 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.6 39.4 43.1 47.6 41.6 31.8 32.9 42.5 28.4 30.0 33.8 36.1 Future Plus Project 2 0 736 25 75 0 0 1.8% 0.7% 47.5 572 93 71 12 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.0 39.8 43.5 48.0 42.0 32.2 33.3 42.9 28.8 30.4 34.2 36.5

E El M onte Str eet e/o S Existing 2017 2 0 136 25 75 0 0 1.8% 0.7% 40.2 106 17 13 2 1 0 0 0 0 59.4 71.1 78.7 -1.8 37.7 32.5 36.1 40.7 34.7 24.9 26.0 35.6 21.5 23.0 26.9 29.2 Existing Plus Project 2 0 136 25 75 0 0 1.8% 0.7% 40.2 106 17 13 2 1 0 0 0 0 59.4 71.1 78.7 -1.8 37.7 32.5 36.1 40.7 34.7 24.9 26.0 35.6 21.5 23.0 26.9 29.2 Future 2020 2 0 136 25 75 0 0 1.8% 0.7% 40.2 106 17 13 2 1 0 0 0 0 59.4 71.1 78.7 -1.8 37.7 32.5 36.1 40.7 34.7 24.9 26.0 35.6 21.5 23.0 26.9 29.2 Future Plus Project 2 0 136 25 75 0 0 1.8% 0.7% 40.2 106 17 13 2 1 0 0 0 0 59.4 71.1 78.7 -1.8 37.7 32.5 36.1 40.7 34.7 24.9 26.0 35.6 21.5 23.0 26.9 29.2

E El Monte Street w/o S Existing 2017 2 0 544 25 75 0 0 1.8% 0.7% 46.2 423 69 52 9 3 0 0 1 0 59.4 71.1 78.7 -1.8 43.7 38.5 42.1 46.7 40.7 30.9 32.0 41.6 27.5 29.1 32.9 35.2 Existing Plus Project 2 0 608 25 75 0 0 1.8% 0.7% 46.7 472 77 58 10 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.2 39.0 42.6 47.2 41.2 31.4 32.5 42.1 28.0 29.5 33.4 35.7 Future 2020 2 0 816 25 75 0 0 1.8% 0.7% 48.0 634 104 78 13 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.4 40.3 43.9 48.5 42.5 32.7 33.7 43.4 29.3 30.8 34.7 37.0 Future Plus Project 2 0 880 25 75 0 0 1.8% 0.7% 48.3 684 112 84 14 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.8 40.6 44.2 48.8 42.8 33.0 34.1 43.7 29.6 31.1 35.0 37.3 (1) Alpha Factor: Coef f i ci ent of absorption rel ati ng to the ef f ects of the ground surf ace. An alpha f actor of 0 indicates that the si te isan acoustically "hard" si te such as aspal t. An alpha f actor of 0.5 indicates that the si te isan acoustically " sof t" si te such as vegetative ground cover.

Assumed 24-Hour Traffic Distribution: Day Evening Night Total ADT Volumes 77.70% 12.70% 9.60% Medium-Duty Trucks 87.43% 5.05% 7.52% Heavy-Duty Trucks 89.10% 2.84% 8.06% Project Name rev. (Date) If Peak Hour = 6% of ADT, Scaling Factor = 16.667 Weekday AM/PM Peak Hour Volumes If Peak Hour = 7% of ADT, Scaling Factor = 14.286 If Peak Hour = 8% of ADT, Scaling Factor = 12.5 Intersection: 3 If Peak Hour = 9% of ADT, Scaling Factor = 11.111 S San Gabriel Boulevard and E Grand Avenue If Peak Hour = 10% of ADT, Scaling Factor = 10 ADT S San Gabriel Boulevard Road S San Gabriel Boulevard E Grand Avenue Southbound Leg North of South of East of West of right through left Cross Street E Grand Avenue S San Gabriel Boulevard Existing 2017 18 1,293 135 Existing 2017 22,720.0 21,352.0 2,320.0 344.0 Existing Plus Project 18 1,293 135 Existing Plus Pro 22,720.0 21,440.0 2,416.0 352.0 Future 2020 18 1,424 137 Future 2020 24,896.0 23,512.0 2,352.0 344.0 Future Plus Project 18 1,424 137 Future Plus Proje 24,896.0 23,600.0 2,448.0 352.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Eastbound Westbound 0.0 0.0 0.0 0.0 left through right right through left Existing 2017 7 3 6 Existing 2017 86 3 8 Existing Plus Project 7 3 6 Existing Plus Project 86 4 11 Future 2020 7 3 6 N Future 2020 87 3 8 Future Plus Project 7 3 6 W E Future Plus Project 87 4 11 S E Grand Avenue Grand E

Northbound left through right Existing 2017 6 1,301 55 Existing Plus Project 6 1,301 63 Future 2020 6 1,439 56 Future Plus Project 6 1,439 64 2 NOISE LEVEL CONTOURS - Existing Plus Project Weekday Off-Site ADT Volumes

Traffic Volumes Ref . Energy L evel s Di st Ld Le Ln Desi gn Di st. f rom Barrier Vehicle Mix ROADWAY NAME M edi an ADT Speed Center to Alpha Attn. Medium Heavy dB(A) Day Eve Ni ght MTd HTd MTe HTe MTn HTn A MT HT Adj A MT HT Total A MT HT Total A MT HT Total Segment Land Use L anes Width Vol ume (mph) ReceptorFactor (1) dB(A) Trucks Trucks CNEL S San Gabriel Boulevard n/o Existing 2017 4 0 22,720 35 75 0 0 1.8% 0.7% 65.1 17,653 2,885 2,181 358 142 21 5 31 13 65.1 74.8 80.0 -1.7 64.2 57.1 58.3 65.8 61.2 49.5 48.1 61.7 48.0 47.7 49.1 53.1 Existing Plus Project 4 0 22,720 35 75 0 0 1.8% 0.7% 65.1 17,653 2,885 2,181 358 142 21 5 31 13 65.1 74.8 80.0 -1.7 64.2 57.1 58.3 65.8 61.2 49.5 48.1 61.7 48.0 47.7 49.1 53.1 Future 2020 4 0 24,896 35 75 0 0 1.8% 0.7% 65.5 19,344 3,162 2,390 392 155 23 5 34 14 65.1 74.8 80.0 -1.7 64.6 57.5 58.7 66.2 61.6 49.9 48.5 62.1 48.4 48.1 49.5 53.5 Future Plus Project 4 0 24,896 35 75 0 0 1.8% 0.7% 65.5 19,344 3,162 2,390 392 155 23 5 34 14 65.1 74.8 80.0 -1.7 64.6 57.5 58.7 66.2 61.6 49.9 48.5 62.1 48.4 48.1 49.5 53.5

S San Gabriel Boulevard s/o Existing 2017 4 0 21,352 35 75 0 0 1.8% 0.7% 64.9 16,591 2,712 2,050 336 133 19 4 29 12 65.1 74.8 80.0 -1.7 63.9 56.8 58.0 65.6 61.0 49.3 47.9 61.4 47.8 47.4 48.8 52.8 Existing Plus Project 4 0 21,440 35 75 0 0 1.8% 0.7% 64.9 16,659 2,723 2,058 337 134 19 4 29 12 65.1 74.8 80.0 -1.7 64.0 56.9 58.1 65.6 61.0 49.3 47.9 61.5 47.8 47.4 48.8 52.8 Future 2020 4 0 23,512 35 75 0 0 1.8% 0.7% 65.3 18,269 2,986 2,257 370 147 21 5 32 13 65.1 74.8 80.0 -1.7 64.4 57.3 58.5 66.0 61.4 49.7 48.3 61.9 48.2 47.8 49.2 53.2 Future Plus Project 4 0 23,600 35 75 0 0 1.8% 0.7% 65.3 18,337 2,997 2,266 371 147 21 5 32 13 65.1 74.8 80.0 -1.7 64.4 57.3 58.5 66.0 61.4 49.7 48.3 61.9 48.2 47.8 49.2 53.2

E Grand Avenue e/o S San Existing 2017 2 0 2,320 25 75 0 0 1.8% 0.7% 52.5 1,803 295 223 37 14 2 0 3 1 59.4 71.1 78.7 -1.8 50.0 44.8 48.4 53.0 47.0 37.2 38.3 47.9 33.8 35.4 39.2 41.5 Existing Plus Project 2 0 2,416 25 75 0 0 1.8% 0.7% 52.7 1,877 307 232 38 15 2 0 3 1 59.4 71.1 78.7 -1.8 50.2 45.0 48.6 53.2 47.2 37.4 38.5 48.1 34.0 35.5 39.4 41.7 Future 2020 2 0 2,352 25 75 0 0 1.8% 0.7% 52.6 1,828 299 226 37 15 2 0 3 1 59.4 71.1 78.7 -1.8 50.0 44.9 48.5 53.1 47.1 37.3 38.3 48.0 33.9 35.4 39.3 41.6 Future Plus Project 2 0 2,448 25 75 0 0 1.8% 0.7% 52.7 1,902 311 235 39 15 2 0 3 1 59.4 71.1 78.7 -1.8 50.2 45.0 48.7 53.2 47.2 37.5 38.5 48.2 34.0 35.6 39.4 41.7

E Grand Avenue w/o S San Existing 2017 2 0 344 25 75 0 0 1.8% 0.7% 44.2 267 44 33 5 2 0 0 0 0 59.4 71.1 78.7 -1.8 41.7 36.5 40.2 44.7 38.7 28.9 30.0 39.6 25.5 27.1 30.9 33.2 Existing Plus Project 2 0 352 25 75 0 0 1.8% 0.7% 44.3 274 45 34 6 2 0 0 0 0 59.4 71.1 78.7 -1.8 41.8 36.6 40.3 44.8 38.8 29.0 30.1 39.7 25.6 27.2 31.0 33.3 Future 2020 2 0 344 25 75 0 0 1.8% 0.7% 44.2 267 44 33 5 2 0 0 0 0 59.4 71.1 78.7 -1.8 41.7 36.5 40.2 44.7 38.7 28.9 30.0 39.6 25.5 27.1 30.9 33.2 Future Plus Project 2 0 352 25 75 0 0 1.8% 0.7% 44.3 274 45 34 6 2 0 0 0 0 59.4 71.1 78.7 -1.8 41.8 36.6 40.3 44.8 38.8 29.0 30.1 39.7 25.6 27.2 31.0 33.3 (1) Alpha Factor: Coef f i ci ent of absorpti on relating to the ef f ects of the ground surf ace. An alpha f actor of 0 indicates that the si te is an acoustically "hard" si te such as aspal t. An alpha f actor of 0.5 indicates that the si te isan acoustically " sof t" si te such as vegetati ve ground cover.

Assumed 24-Hour Traffic Distribution: Day Evening Ni ght Total ADT Vol umes 77.70% 12.70% 9.60% Medium-Duty Trucks 87.43% 5.05% 7.52% Heavy-Duty Trucks 89.10% 2.84% 8.06% Project Name rev. (Date) If Peak Hour = 6% of ADT, Scaling Factor = 16.667 Weekday AM/PM Peak Hour Volumes If Peak Hour = 7% of ADT, Scaling Factor = 14.286 If Peak Hour = 8% of ADT, Scaling Factor = 12.5 Intersection: 4 If Peak Hour = 9% of ADT, Scaling Factor = 11.111 S Gladys Avenue and E Grand Avenue If Peak Hour = 10% of ADT, Scaling Factor = 10 ADT S Gladys Avenue Road S Gladys Avenue E Grand Avenue Southbound Leg North of South of East of West of right through left Cross Street E Grand Avenue S Gladys Avenue Existing 2017 2 12 38 Existing 2017 712.0 616.0 2,824.0 2,424.0 Existing Plus Project 6 18 40 Existing Plus Pro 904.0 680.0 2,856.0 2,520.0 Future 2020 2 13 40 Future 2020 768.0 640.0 2,888.0 2,456.0 Future Plus Project 6 19 42 Future Plus Proje 960.0 704.0 2,920.0 2,552.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Eastbound Westbound 0.0 0.0 0.0 0.0 left through right right through left Existing 2017 6 184 18 Existing 2017 18 86 9 Existing Plus Project 14 184 18 Existing Plus Project 20 86 9 Future 2020 6 187 18 N Future 2020 20 87 9 Future Plus Project 14 187 18 W E Future Plus Project 22 87 9 S E Grand Avenue Grand E

Northbound left through right Existing 2017 7 13 18 Existing Plus Project 7 15 18 Future 2020 7 15 18 Future Plus Project 7 17 18 2 NOISE LEVEL CONTOURS - Existing Plus Project Weekday Off-Site ADT Volumes

Traffic Volumes Ref . Energy L evel sDi st Ld Le Ln Desi gn Dist. from Barri er Vehicle Mix ROADWAY NAME M edi an ADT Speed Center to Alpha Attn. Medium Heavy dB(A) Day Eve Night MTd HTd MTe HTe MTn HTn A MT HT Adj A MT HT Total A MT HT Total A MT HT Total Segment Land Use L anes Width Volume (mph) ReceptorFactor (1) dB(A) Trucks Trucks CNEL S Gladys Avenue n/o E Existing 2017 2 0 712 25 75 0 0 1.8% 0.7% 47.4 553 90 68 11 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.8 39.7 43.3 47.9 41.9 32.1 33.1 42.8 28.7 30.2 34.1 36.4 Existing Plus Project 2 0 904 25 75 0 0 1.8% 0.7% 48.4 702 115 87 14 6 1 0 1 1 59.4 71.1 78.7 -1.8 45.9 40.7 44.4 48.9 42.9 33.1 34.2 43.8 29.7 31.3 35.1 37.4 Future 2020 2 0 768 25 75 0 0 1.8% 0.7% 47.7 597 98 74 12 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.2 40.0 43.6 48.2 42.2 32.4 33.5 43.1 29.0 30.6 34.4 36.7 Future Plus Project 2 0 960 25 75 0 0 1.8% 0.7% 48.7 746 122 92 15 6 1 0 1 1 59.4 71.1 78.7 -1.8 46.1 41.0 44.6 49.2 43.2 33.4 34.4 44.1 30.0 31.5 35.4 37.7

S Gladys Avenue s/o E Grand Existing 2017 2 0 616 25 75 0 0 1.8% 0.7% 46.7 479 78 59 10 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.2 39.1 42.7 47.2 41.2 31.5 32.5 42.2 28.0 29.6 33.5 35.8 Existing Plus Project 2 0 680 25 75 0 0 1.8% 0.7% 47.2 528 86 65 11 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.6 39.5 43.1 47.7 41.7 31.9 32.9 42.6 28.5 30.0 33.9 36.2 Future 2020 2 0 640 25 75 0 0 1.8% 0.7% 46.9 497 81 61 10 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.4 39.2 42.9 47.4 41.4 31.6 32.7 42.3 28.2 29.8 33.6 35.9 Future Plus Project 2 0 704 25 75 0 0 1.8% 0.7% 47.3 547 89 68 11 4 1 0 1 0 59.4 71.1 78.7 -1.8 44.8 39.6 43.3 47.8 41.8 32.0 33.1 42.7 28.6 30.2 34.0 36.3

E Grand Avenue e/o S Gladys Existing 2017 2 0 2,824 25 75 0 0 1.8% 0.7% 53.3 #### 359 271 44 18 3 1 4 2 59.4 71.1 78.7 -1.8 50.8 45.7 49.3 53.9 47.8 38.1 39.1 48.8 34.7 36.2 40.1 42.4 Existing Plus Project 2 0 2,856 25 75 0 0 1.8% 0.7% 53.4 #### 363 274 45 18 3 1 4 2 59.4 71.1 78.7 -1.8 50.9 45.7 49.3 53.9 47.9 38.1 39.2 48.8 34.7 36.3 40.1 42.4 Future 2020 2 0 2,888 25 75 0 0 1.8% 0.7% 53.4 #### 367 277 45 18 3 1 4 2 59.4 71.1 78.7 -1.8 50.9 45.8 49.4 54.0 47.9 38.2 39.2 48.9 34.8 36.3 40.2 42.5 Future Plus Project 2 0 2,920 25 75 0 0 1.8% 0.7% 53.5 #### 371 280 46 18 3 1 4 2 59.4 71.1 78.7 -1.8 51.0 45.8 49.4 54.0 48.0 38.2 39.3 48.9 34.8 36.4 40.2 42.5

E Grand Avenue w/o S Existing 2017 2 0 2,424 25 75 0 0 1.8% 0.7% 52.7 #### 308 233 38 15 2 0 3 1 59.4 71.1 78.7 -1.8 50.2 45.0 48.6 53.2 47.2 37.4 38.5 48.1 34.0 35.5 39.4 41.7 Existing Plus Project 2 0 2,520 25 75 0 0 1.8% 0.7% 52.9 #### 320 242 40 16 2 1 3 1 59.4 71.1 78.7 -1.8 50.3 45.2 48.8 53.4 47.4 37.6 38.6 48.3 34.2 35.7 39.6 41.9 Future 2020 2 0 2,456 25 75 0 0 1.8% 0.7% 52.7 #### 312 236 39 15 2 0 3 1 59.4 71.1 78.7 -1.8 50.2 45.1 48.7 53.2 47.2 37.5 38.5 48.2 34.0 35.6 39.5 41.8 Future Plus Project 2 0 2,552 25 75 0 0 1.8% 0.7% 52.9 #### 324 245 40 16 2 1 3 1 59.4 71.1 78.7 -1.8 50.4 45.2 48.9 53.4 47.4 37.6 38.7 48.3 34.2 35.8 39.6 41.9 (1) Alpha Factor: Coef f i ci ent of absorption rel ati ng to the ef f ects of the ground surf ace. An alpha f actor of 0 indicates that the si te isan acoustically "hard" si te such as aspal t. An alpha f actor of 0.5 indicates that the si te isan acoustically " sof t" si te such as vegetative ground cover.

Assumed 24-Hour Traffic Distribution: Day Evening Night Total ADT Volumes 77.70% 12.70% 9.60% Medium-Duty Trucks 87.43% 5.05% 7.52% Heavy-Duty Trucks 89.10% 2.84% 8.06% Project Name rev. (Date) If Peak Hour = 6% of ADT, Scaling Factor = 16.667 Weekday AM/PM Peak Hour Volumes If Peak Hour = 7% of ADT, Scaling Factor = 14.286 If Peak Hour = 8% of ADT, Scaling Factor = 12.5 Intersection: 5 If Peak Hour = 9% of ADT, Scaling Factor = 11.111 S San Gabriel Boulevard and E Mission Road If Peak Hour = 10% of ADT, Scaling Factor = 10 ADT S San Gabriel Boulevard Road S San Gabriel Boulevard E Mission Road Southbound Leg North of South of East of West of right through left Cross Street E Mission Road S San Gabriel Boulevard Existing 2017 18 1,183 105 Existing 2017 21,536.0 20,768.0 10,976.0 8,912.0 Existing Plus Project 18 1,186 105 Existing Plus Pro 21,624.0 20,864.0 11,016.0 8,944.0 Future 2020 20 1,301 116 Future 2020 23,704.0 22,752.0 11,344.0 9,144.0 Future Plus Project 20 1,304 116 Future Plus Proje 23,792.0 22,848.0 11,384.0 9,176.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Eastbound Westbound 0.0 0.0 0.0 0.0 left through right right through left Existing 2017 45 519 47 Existing 2017 204 400 39 Existing Plus Project 47 519 47 Existing Plus Project 204 402 42 Future 2020 49 529 49 N Future 2020 217 409 40 Future Plus Project 51 529 49 W E Future Plus Project 217 411 43 S E Mission Road Mission E

Northbound left through right Existing 2017 85 1,137 105 Existing Plus Project 85 1,143 105 Future 2020 87 1,260 107 Future Plus Project 87 1,266 107 2 NOISE LEVEL CONTOURS - Existing Plus Project Weekday Off-Site ADT Volumes

Traffic Volumes Ref . Energy L evel s Di st Ld Le Ln Desi gn Di st. f rom Barrier Vehicle Mix ROADWAY NAME M edi an ADT Speed Center to Alpha Attn. Medium Heavy dB(A) Day Eve Ni ght MTd HTd MTe HTe MTn HTn A MT HT Adj A MT HT Total A MT HT Total A MT HT Total Segment Land Use L anes Width Vol ume (mph) ReceptorFactor (1) dB(A) Trucks Trucks CNEL S San Gabriel Boulevard n/o Existing 2017 4 0 21,536 35 75 0 0 1.8% 0.7% 64.9 16,733 2,735 2,067 339 134 20 4 29 12 65.1 74.8 80.0 -1.7 64.0 56.9 58.1 65.6 61.0 49.3 47.9 61.5 47.8 47.4 48.8 52.8 Existing Plus Project 4 0 21,624 35 75 0 0 1.8% 0.7% 64.9 16,802 2,746 2,076 340 135 20 4 29 12 65.1 74.8 80.0 -1.7 64.0 56.9 58.1 65.6 61.0 49.3 47.9 61.5 47.8 47.4 48.9 52.9 Future 2020 4 0 23,704 35 75 0 0 1.8% 0.7% 65.3 18,418 3,010 2,276 373 148 22 5 32 13 65.1 74.8 80.0 -1.7 64.4 57.3 58.5 66.0 61.4 49.7 48.3 61.9 48.2 47.8 49.3 53.3 Future Plus Project 4 0 23,792 35 75 0 0 1.8% 0.7% 65.3 18,486 3,022 2,284 374 148 22 5 32 13 65.1 74.8 80.0 -1.7 64.4 57.3 58.5 66.0 61.4 49.7 48.3 61.9 48.2 47.9 49.3 53.3

S San Gabriel Boulevard s/o Existing 2017 4 0 20,768 35 75 0 0 1.8% 0.7% 64.7 16,137 2,638 1,994 327 130 19 4 28 12 65.1 74.8 80.0 -1.7 63.8 56.7 57.9 65.4 60.8 49.1 47.8 61.3 47.6 47.3 48.7 52.7 Existing Plus Project 4 0 20,864 35 75 0 0 1.8% 0.7% 64.8 16,211 2,650 2,003 328 130 19 4 28 12 65.1 74.8 80.0 -1.7 63.8 56.7 57.9 65.5 60.9 49.2 47.8 61.3 47.7 47.3 48.7 52.7 Future 2020 4 0 22,752 35 75 0 0 1.8% 0.7% 65.1 17,678 2,890 2,184 358 142 21 5 31 13 65.1 74.8 80.0 -1.7 64.2 57.1 58.3 65.8 61.2 49.5 48.2 61.7 48.0 47.7 49.1 53.1 Future Plus Project 4 0 22,848 35 75 0 0 1.8% 0.7% 65.2 17,753 2,902 2,193 360 143 21 5 31 13 65.1 74.8 80.0 -1.7 64.2 57.1 58.3 65.9 61.3 49.6 48.2 61.7 48.1 47.7 49.1 53.1

E M ission Road e/o S San Existing 2017 4 0 10,976 35 75 0 0 1.8% 0.7% 62.0 8,528 1,394 1,054 173 68 10 2 15 6 65.1 74.8 80.0 -1.7 61.0 54.0 55.2 62.7 58.1 46.4 45.0 58.5 44.9 44.5 45.9 49.9 Existing Plus Project 4 0 11,016 35 75 0 0 1.8% 0.7% 62.0 8,559 1,399 1,058 173 69 10 2 15 6 65.1 74.8 80.0 -1.7 61.1 54.0 55.2 62.7 58.1 46.4 45.0 58.6 44.9 44.5 45.9 49.9 Future 2020 4 0 11,344 35 75 0 0 1.8% 0.7% 62.1 8,814 1,441 1,089 179 71 10 2 15 6 65.1 74.8 80.0 -1.7 61.2 54.1 55.3 62.8 58.2 46.5 45.1 58.7 45.0 44.6 46.1 50.1 Future Plus Project 4 0 11,384 35 75 0 0 1.8% 0.7% 62.1 8,845 1,446 1,093 179 71 10 2 15 6 65.1 74.8 80.0 -1.7 61.2 54.1 55.3 62.8 58.2 46.5 45.1 58.7 45.0 44.7 46.1 50.1

E M ission Road w/o S San Existing 2017 2 0 8,912 35 75 0 0 1.8% 0.7% 61.0 6,925 1,132 856 140 56 8 2 12 5 65.1 74.8 80.0 -1.8 60.0 52.9 54.1 61.6 57.0 45.4 44.0 57.5 43.9 43.5 44.9 48.9 Existing Plus Project 2 0 8,944 35 75 0 0 1.8% 0.7% 61.0 6,949 1,136 859 141 56 8 2 12 5 65.1 74.8 80.0 -1.8 60.0 53.0 54.1 61.7 57.1 45.4 44.0 57.5 43.9 43.5 44.9 48.9 Future 2020 2 0 9,144 35 75 0 0 1.8% 0.7% 61.1 7,105 1,161 878 144 57 8 2 12 5 65.1 74.8 80.0 -1.8 60.1 53.0 54.2 61.8 57.2 45.5 44.1 57.6 44.0 43.6 45.0 49.0 Future Plus Project 2 0 9,176 35 75 0 0 1.8% 0.7% 61.1 7,130 1,165 881 144 57 8 2 12 5 65.1 74.8 80.0 -1.8 60.2 53.1 54.3 61.8 57.2 45.5 44.1 57.7 44.0 43.6 45.0 49.0 (1) Alpha Factor: Coef f i ci ent of absorpti on relating to the ef f ects of the ground surf ace. An alpha f actor of 0 indicates that the si te is an acoustically "hard" si te such as aspal t. An alpha f actor of 0.5 indicates that the si te isan acoustically " sof t" si te such as vegetati ve ground cover.

Assumed 24-Hour Traffic Distribution: Day Evening Ni ght Total ADT Vol umes 77.70% 12.70% 9.60% Medium-Duty Trucks 87.43% 5.05% 7.52% Heavy-Duty Trucks 89.10% 2.84% 8.06% Project Name rev. (Date) If Peak Hour = 6% of ADT, Scaling Factor = 16.667 Weekday AM/PM Peak Hour Volumes If Peak Hour = 7% of ADT, Scaling Factor = 14.286 If Peak Hour = 8% of ADT, Scaling Factor = 12.5 Intersection: 6 If Peak Hour = 9% of ADT, Scaling Factor = 11.111 S Gladys Avenue and E Mission Road If Peak Hour = 10% of ADT, Scaling Factor = 10 ADT S Gladys Avenue Road S Gladys Avenue E Mission Road Southbound Leg North of South of East of West of right through left Cross Street E Mission Road S Gladys Avenue Existing 2017 41 10 28 Existing 2017 880.0 968.0 12,128.0 11,720.0 Existing Plus Project 46 10 30 Existing Plus Pro 952.0 968.0 12,160.0 11,760.0 Future 2020 42 10 29 Future 2020 912.0 976.0 12,544.0 12,112.0 Future Plus Project 47 10 31 Future Plus Proje 984.0 976.0 12,576.0 12,152.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Eastbound Westbound 0.0 0.0 0.0 0.0 left through right right through left Existing 2017 14 755 11 Existing 2017 10 637 24 Existing Plus Project 14 755 11 Existing Plus Project 12 637 24 Future 2020 14 779 11 N Future 2020 12 661 24 Future Plus Project 14 779 11 W E Future Plus Project 14 661 24 S E Mission Road Mission E

Northbound left through right Existing 2017 7 7 62 Existing Plus Project 7 7 62 Future 2020 7 7 63 Future Plus Project 7 7 63 2 NOISE LEVEL CONTOURS - Existing Plus Project Weekday Off-Site ADT Volumes

Traffic Volumes Ref . Energy L evel sDi st Ld Le Ln Desi gn Dist. from Barri er Vehicle Mix ROADWAY NAME M edi an ADT Speed Center to Alpha Attn. Medium Heavy dB(A) Day Eve Night MTd HTd MTe HTe MTn HTn A MT HT Adj A MT HT Total A MT HT Total A MT HT Total Segment Land Use L anes Width Volume (mph) ReceptorFactor (1) dB(A) Trucks Trucks CNEL S Gladys Avenue n/o E Existing 2017 2 0 880 25 75 0 0 1.8% 0.7% 48.3 684 112 84 14 5 1 0 1 0 59.4 71.1 78.7 -1.8 45.8 40.6 44.2 48.8 42.8 33.0 34.1 43.7 29.6 31.1 35.0 37.3 Existing Plus Project 2 0 952 25 75 0 0 1.8% 0.7% 48.6 740 121 91 15 6 1 0 1 1 59.4 71.1 78.7 -1.8 46.1 40.9 44.6 49.1 43.1 33.4 34.4 44.1 29.9 31.5 35.3 37.6 Future 2020 2 0 912 25 75 0 0 1.8% 0.7% 48.4 709 116 88 14 6 1 0 1 1 59.4 71.1 78.7 -1.8 45.9 40.8 44.4 48.9 42.9 33.2 34.2 43.9 29.7 31.3 35.2 37.5 Future Plus Project 2 0 984 25 75 0 0 1.8% 0.7% 48.8 765 125 94 15 6 1 0 1 1 59.4 71.1 78.7 -1.8 46.2 41.1 44.7 49.3 43.3 33.5 34.6 44.2 30.1 31.6 35.5 37.8

S Gladys Avenue s/o E Existing 2017 2 0 968 25 75 0 0 1.8% 0.7% 48.7 752 123 93 15 6 1 0 1 1 59.4 71.1 78.7 -1.8 46.2 41.0 44.6 49.2 43.2 33.4 34.5 44.1 30.0 31.6 35.4 37.7 Existing Plus Project 2 0 968 25 75 0 0 1.8% 0.7% 48.7 752 123 93 15 6 1 0 1 1 59.4 71.1 78.7 -1.8 46.2 41.0 44.6 49.2 43.2 33.4 34.5 44.1 30.0 31.6 35.4 37.7 Future 2020 2 0 976 25 75 0 0 1.8% 0.7% 48.7 758 124 94 15 6 1 0 1 1 59.4 71.1 78.7 -1.8 46.2 41.1 44.7 49.2 43.2 33.5 34.5 44.2 30.0 31.6 35.4 37.8 Future Plus Project 2 0 976 25 75 0 0 1.8% 0.7% 48.7 758 124 94 15 6 1 0 1 1 59.4 71.1 78.7 -1.8 46.2 41.1 44.7 49.2 43.2 33.5 34.5 44.2 30.0 31.6 35.4 37.8

E Mission Road e/o S Gladys Existing 2017 4 0 12,128 35 75 0 0 1.8% 0.7% 62.4 #### #### #### 191 76 11 2 16 7 65.1 74.8 80.0 -1.7 61.5 54.4 55.6 63.1 58.5 46.8 45.4 59.0 45.3 44.9 46.4 50.3 Existing Plus Project 4 0 12,160 35 75 0 0 1.8% 0.7% 62.4 #### #### #### 191 76 11 2 16 7 65.1 74.8 80.0 -1.7 61.5 54.4 55.6 63.1 58.5 46.8 45.4 59.0 45.3 44.9 46.4 50.4 Future 2020 4 0 12,544 35 75 0 0 1.8% 0.7% 62.6 #### #### #### 197 78 11 2 17 7 65.1 74.8 80.0 -1.7 61.6 54.5 55.7 63.2 58.6 47.0 45.6 59.1 45.5 45.1 46.5 50.5 Future Plus Project 4 0 12,576 35 75 0 0 1.8% 0.7% 62.6 #### #### #### 198 78 11 3 17 7 65.1 74.8 80.0 -1.7 61.6 54.5 55.7 63.3 58.7 47.0 45.6 59.1 45.5 45.1 46.5 50.5

E Mission Road w/o S Gladys Existing 2017 4 0 11,720 35 75 0 0 1.8% 0.7% 62.3 #### #### #### 184 73 11 2 16 7 65.1 74.8 80.0 -1.7 61.3 54.2 55.4 63.0 58.4 46.7 45.3 58.8 45.2 44.8 46.2 50.2 Existing Plus Project 4 0 11,760 35 75 0 0 1.8% 0.7% 62.3 #### #### #### 185 73 11 2 16 7 65.1 74.8 80.0 -1.7 61.3 54.3 55.5 63.0 58.4 46.7 45.3 58.8 45.2 44.8 46.2 50.2 Future 2020 4 0 12,112 35 75 0 0 1.8% 0.7% 62.4 #### #### #### 191 76 11 2 16 7 65.1 74.8 80.0 -1.7 61.5 54.4 55.6 63.1 58.5 46.8 45.4 59.0 45.3 44.9 46.3 50.3 Future Plus Project 4 0 12,152 35 75 0 0 1.8% 0.7% 62.4 #### #### #### 191 76 11 2 16 7 65.1 74.8 80.0 -1.7 61.5 54.4 55.6 63.1 58.5 46.8 45.4 59.0 45.3 44.9 46.4 50.4 (1) Alpha Factor: Coef f i ci ent of absorption rel ati ng to the ef f ects of the ground surf ace. An alpha f actor of 0 indicates that the si te isan acoustically "hard" si te such as aspal t. An alpha f actor of 0.5 indicates that the si te isan acoustically " sof t" si te such as vegetative ground cover.

Assumed 24-Hour Traffic Distribution: Day Evening Night Total ADT Volumes 77.70% 12.70% 9.60% Medium-Duty Trucks 87.43% 5.05% 7.52% Heavy-Duty Trucks 89.10% 2.84% 8.06% Project Name rev. (Date) If Peak Hour = 6% of ADT, Scaling Factor = 16.667 Weekday AM/PM Peak Hour Volumes If Peak Hour = 7% of ADT, Scaling Factor = 14.286 If Peak Hour = 8% of ADT, Scaling Factor = 12.5 Intersection: 6 If Peak Hour = 9% of ADT, Scaling Factor = 11.111 S Gladys Avenue and Project Driveway If Peak Hour = 10% of ADT, Scaling Factor = 10 ADT S Gladys Avenue Road S Gladys Avenue Project Driveway Southbound Leg North of South of East of West of right through left Cross Street Project Driveway S Gladys Avenue Existing 2017 Existing 2017 0.0 0.0 0.0 0.0 Existing Plus Project 52 4 Existing Plus Pro 536.0 648.0 240.0 0.0 Future 2020 Future 2020 0.0 0.0 0.0 0.0 Future Plus Project 55 4 Future Plus Proje 840.0 952.0 240.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Eastbound Westbound 0.0 0.0 0.0 0.0 left through right right through left Existing 2017 Existing 2017 Existing Plus Project Existing Plus Project 4 11 Future 2020 N Future 2020 Future Plus Project W E Future Plus Project 4 11 S Project Driveway Project

Northbound left through right Existing 2017 Existing Plus Project 7 11 Future 2020 Future Plus Project 42 11 2 NOISE LEVEL CONTOURS - Existing Plus Project Weekday Off-Site ADT Volumes

Traffic Volumes Ref . Energy L evel sDi st Ld Le Ln Desi gn Dist. from Barri er Vehicle Mix ROADWAY NAME M edi an ADT Speed Center to Alpha Attn. Medium Heavy dB(A) Day Eve Night MTd HTd MTe HTe MTn HTn A MT HT Adj A MT HT Total A MT HT Total A MT HT Total Segment Land Use L anes Width Volume (mph) ReceptorFactor (1) dB(A) Trucks Trucks CNEL S Gladys Avenue n/o Pr oj ect Existing 2017 2 0 0 35 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 65.1 74.8 80.0 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Existing Plus Project 2 0 536 35 75 0 0 1.8% 0.7% 48.7 416 68 51 8 3 0 0 1 0 65.1 74.8 80.0 -1.8 47.8 40.7 41.9 49.4 44.8 33.1 31.8 45.3 31.6 31.3 32.7 36.7 Future 2020 2 0 0 35 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 65.1 74.8 80.0 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Future Plus Project 2 0 840 35 75 0 0 1.8% 0.7% 50.7 653 107 81 13 5 1 0 1 0 65.1 74.8 80.0 -1.8 49.8 42.7 43.9 51.4 46.8 35.1 33.7 47.3 33.6 33.2 34.6 38.6

S Gladys Avenue s/o Pr oj ect Existing 2017 2 0 0 35 75 0 0 1.8% 0.7% 6.7 0 0 0 0 0 0 0 0 0 65.1 74.8 80.0 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Existing Plus Project 2 0 648 35 75 0 0 1.8% 0.7% 49.6 503 82 62 10 4 1 0 1 0 65.1 74.8 80.0 -1.8 48.6 41.6 42.8 50.3 45.7 34.0 32.6 46.1 32.5 32.1 33.5 37.5 Future 2020 2 0 0 35 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 65.1 74.8 80.0 -1.8 v 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Future Plus Project 2 0 952 35 75 0 0 1.8% 0.7% 51.2 740 121 91 15 6 1 0 1 1 65.1 74.8 80.0 -1.8 50.3 43.2 44.4 51.9 47.3 35.6 34.3 47.8 34.1 33.8 35.2 39.2

Pr oj ect Dr iveway e/o S c Existing 2017 1 0 0 15 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 50.8 65.4 74.5 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Existing Plus Project 1 0 240 15 75 0 0 1.8% 0.7% 38.9 186 30 23 4 1 0 0 0 0 50.8 65.4 74.5 -1.8 33.7 31.5 36.5 39.2 30.7 23.9 26.4 32.7 17.5 22.0 27.3 28.8 Future 2020 1 0 0 15 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 50.8 65.4 74.5 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Future Plus Project 1 0 240 15 75 0 0 1.8% 0.7% 38.9 186 30 23 4 1 0 0 0 0 50.8 65.4 74.5 -1.8 33.7 31.5 36.5 39.2 30.7 23.9 26.4 32.7 17.5 22.0 27.3 28.8

Pr oj ect Dr iveway w/o S Existing 2017 1 0 0 15 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 50.8 65.4 74.5 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Existing Plus Project 1 0 0 15 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 50.8 65.4 74.5 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Future 2020 1 0 0 15 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 50.8 65.4 74.5 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Future Plus Project 1 0 0 15 75 0 0 1.8% 0.7% 0.0 0 0 0 0 0 0 0 0 0 50.8 65.4 74.5 -1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 (1) Alpha Factor: Coef f i ci ent of absorption rel ati ng to the ef f ects of the ground surf ace. An alpha f actor of 0 indicates that the si te isan acoustically "hard" si te such as aspal t. An alpha f actor of 0.5 indicates that the si te isan acoustically " sof t" si te such as vegetative ground cover.

Assumed 24-Hour Traffic Distribution: Day Evening Night Total ADT Volumes 77.70% 12.70% 9.60% Medium-Duty Trucks 87.43% 5.05% 7.52% Heavy-Duty Trucks 89.10% 2.84% 8.06% APPENDIX C Construction Noise Data Spreadsheets Project Title: Default

Parameters Construction Hours: 11 Daytime hours (7:00 AM to 7:00 PM) 0 Evening hours (7:00 PM to 10:00 PM) 0 Nighttime hours (10:00 PM to 7:00 AM)

Calculation

Construction Phase Number of Acoustical Actual Noise Level Distance Leq Equipment Type Units Usage Factor At 50 feet, Lmax Feet Site Preparation/Grading Crawler Tractors 2 0.4 84 50 83.0 Crushing/Proc. Equipment 1 0.5 85 50 82.0 Excavators 1 0.4 81 50 77.0 Generator Sets 2 0.5 81 50 81.0 Graders 1 0.4 85 50 81.0 Plate Compactors 1 0.2 83 50 76.0 Rollers 2 0.2 80 50 76.0 Rough Terrain Forklifts 2 1 82 50 85.0 Rubber Tired Loaders 1 1 85 50 85.0 Skid Steer Loaders 2 1 85 50 88.0 Tractors/Loaders/Backhoes 3 0.4 78 50 78.8 Trenchers 1 0.5 80 50 77.0 Total Accumulated Phase Noise 93.3 Building Construction Cement and Mortar Mixers 1 0.4 79 50 75.0 Concrete/Industrial Saws 2 0.2 90 50 86.0 Cranes 1 0.16 81 50 73.0 Generator Sets 2 0.5 81 50 81.0 Rubber Tired Loaders 1 1 85 50 85.0 Skid Steer Loaders 2 1 85 50 88.0 Tractors/Loaders/Backhoes 3 1 85 50 78.8 Welder/Torch 1 0.4 74 50 70.0 Total Accumulated Phase Noise 92.2 Paving Cement and Mortar Mixers 1 0.4 79 50 75.0 Graders 1 0.4 85 50 81.0 Paver 1 0.5 77 50 74.0 Rollers 2 0.2 80 50 76.0 Scrapers 1 0.4 84 50 80.0 Skid Steer Loaders 2 1 85 50 88.0 Tractors/Loaders/Backhoes 3 1 85 50 78.8 Trenchers 1 0.5 80 50 77.0 Total Accumulated Phase Noise 90.3 Architectural Coating Compressor 1 0.4 78 50 74.0 Total Accumulated Phase Noise 74.0 Project Title: Default

Parameters Construction Hours: 11 Daytime hours (7:00 AM to 7:00 PM) 0 Evening hours (7:00 PM to 10:00 PM) 0 Nighttime hours (10:00 PM to 7:00 AM)

Calculation

Construction Phase Number of Acoustical Actual Noise Level Distance Leq Equipment Type Units Usage Factor At 50 feet, Lmax Feet Site Preparation/Grading Crawler Tractors 2 0.4 84 25 89.1 Crushing/Proc. Equipment 1 0.5 85 25 88.0 Excavators 1 0.4 81 25 83.0 Generator Sets 2 0.5 81 25 87.0 Graders 1 0.4 85 25 87.0 Plate Compactors 1 0.2 83 25 82.0 Rollers 2 0.2 80 25 82.0 Rough Terrain Forklifts 2 1 82 25 91.0 Rubber Tired Loaders 1 1 85 25 91.0 Skid Steer Loaders 2 1 85 25 94.0 Tractors/Loaders/Backhoes 3 1 85 25 84.8 Trenchers 1 0.5 80 25 83.0 Total Accumulated Phase Noise 99.3 Building Construction Cement and Mortar Mixers 1 0.4 79 25 81.0 Concrete/Industrial Saws 2 0.2 90 25 92.0 Cranes 1 0.16 81 25 79.1 Generator Sets 2 0.5 81 25 87.0 Rubber Tired Loaders 1 1 85 25 91.0 Skid Steer Loaders 2 1 85 25 94.0 Tractors/Loaders/Backhoes 3 1 85 25 84.8 Welder/Torch 1 0.4 74 25 76.0 Total Accumulated Phase Noise 98.2 Paving Cement and Mortar Mixers 1 0.4 79 25 81.0 Graders 1 0.4 85 25 87.0 Paver 1 0.5 77 25 80.0 Rollers 2 0.2 80 25 82.0 Scrapers 1 0.4 84 25 86.0 Skid Steer Loaders 2 1 85 25 94.0 Tractors/Loaders/Backhoes 3 1 85 25 84.8 Trenchers 1 0.5 80 25 83.0 Total Accumulated Phase Noise 96.4 Architectural Coating Compressor 1 0.4 78 25 80.0 Total Accumulated Phase Noise 80.0 Project Title: Default

Parameters Construction Hours: 11 Daytime hours (7:00 AM to 7:00 PM) 0 Evening hours (7:00 PM to 10:00 PM) 0 Nighttime hours (10:00 PM to 7:00 AM)

Calculation

Construction Phase Number of Acoustical Actual Noise Level Distance Leq Equipment Type Units Usage Factor At 50 feet, Lmax Feet Site Preparation/Grading Crawler Tractors 2 0.4 84 195 71.2 Crushing/Proc. Equipment 1 0.5 85 195 70.2 Excavators 1 0.4 81 195 65.2 Generator Sets 2 0.5 81 195 69.2 Graders 1 0.4 85 195 69.2 Plate Compactors 1 0.2 83 195 64.2 Rollers 2 0.2 80 195 64.2 Rough Terrain Forklifts 2 1 82 195 73.2 Rubber Tired Loaders 1 1 85 195 73.2 Skid Steer Loaders 2 1 85 195 76.2 Tractors/Loaders/Backhoes 3 1 85 195 67.0 Trenchers 1 0.5 80 195 65.2 Total Accumulated Phase Noise 81.5 Building Construction Cement and Mortar Mixers 1 0.4 79 195 63.2 Concrete/Industrial Saws 2 0.2 90 195 74.2 Cranes 1 0.16 81 195 61.2 Generator Sets 2 0.5 81 195 69.2 Rubber Tired Loaders 1 1 85 195 73.2 Skid Steer Loaders 2 1 85 195 76.2 Tractors/Loaders/Backhoes 3 1 85 195 67.0 Welder/Torch 1 0.4 74 195 58.2 Total Accumulated Phase Noise 80.4 Paving Cement and Mortar Mixers 1 0.4 79 195 63.2 Graders 1 0.4 85 195 69.2 Paver 1 0.5 77 195 62.2 Rollers 2 0.2 80 195 64.2 Scrapers 1 0.4 84 195 68.2 Skid Steer Loaders 2 1 85 195 76.2 Tractors/Loaders/Backhoes 3 1 85 195 67.0 Trenchers 1 0.5 80 195 65.2 Total Accumulated Phase Noise 78.5 Architectural Coating Compressor 1 0.4 78 195 62.2 Total Accumulated Phase Noise 62.2 Project Title: Default

Parameters Construction Hours: 11 Daytime hours (7:00 AM to 7:00 PM) 0 Evening hours (7:00 PM to 10:00 PM) 0 Nighttime hours (10:00 PM to 7:00 AM)

Calculation

Construction Phase Number of Acoustical Actual Noise Level Distance Leq Equipment Type Units Usage Factor At 50 feet, Lmax Feet Site Preparation/Grading 91.7 Crawler Tractors 2 0.4 84 60 81.4 Crushing/Proc. Equipment 1 0.5 85 60 80.4 Excavators 1 0.4 81 60 75.4 Generator Sets 2 0.5 81 60 79.4 Graders 1 0.4 85 60 79.4 Plate Compactors 1 0.2 83 60 74.4 Rollers 2 0.2 80 60 74.4 Rough Terrain Forklifts 2 1 82 60 83.4 Rubber Tired Loaders 1 1 85 60 83.4 Skid Steer Loaders 2 1 85 60 86.4 Tractors/Loaders/Backhoes 3 1 85 60 77.2 Trenchers 1 0.5 80 60 75.4 Total Accumulated Phase Noise 91.7 Building Construction 90.6 Cement and Mortar Mixers 1 0.4 79 60 73.4 Concrete/Industrial Saws 2 0.2 90 60 84.4 Cranes 1 0.16 81 60 71.5 Generator Sets 2 0.5 81 60 79.4 Rubber Tired Loaders 1 1 85 60 88.2 Skid Steer Loaders 2 1 85 60 83.4 Tractors/Loaders/Backhoes 3 1 85 60 86.4 Welder/Torch 1 0.4 74 60 68.4 Total Accumulated Phase Noise 90.6 Paving 88.8 Cement and Mortar Mixers 1 0.4 79 60 73.4 Graders 1 0.4 85 60 79.4 Paver 1 0.5 77 60 72.4 Rollers 2 0.2 80 60 74.4 Scrapers 1 0.4 84 60 78.4 Skid Steer Loaders 2 1 85 60 86.4 Tractors/Loaders/Backhoes 3 1 85 60 77.2 Trenchers 1 0.5 80 60 75.4 Total Accumulated Phase Noise 88.8 Architectural Coating 72.4 Compressor 1 0.4 78 60 72.4 Total Accumulated Phase Noise 72.4