Item E-10 Agenda Report — Beverly Hills City Council, November 21, 2023 (part 1 of 2)

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AGENDA REPORT
Meeting Date: November 21, 2023
Item Number:

To: Honorable Mayor & City Council
From: Daren Grilley, Assistant Director of Public Works/City Engineer Tristan Malabanan, Project Manager
Subject: AUTHORIZE DEVELOPMENT OF LA CIENEGA WELLS 2 AND 3 SUBJECT TO FINAL DESIGN; AND

PURSUANT TO THE PROVISIONS OF THE CALIFORNIA

ENVIRONMENTAL QUALITY ACT (CEQA), CITY COUNCIL WILL

ALSO CONSIDER FINDING THE PROJECT EXEMPT FROM

FURTHER REVIEW UNDER CEQA
Attachment: 1. Project Map

2. Class 32 Categorical Exemption Report

3. Categorical Exemption Form

4. Community Meeting Notice

RECOMMENDATION
Staff recommends that City Council authorize the development of La Cienega Wells 2 and 3 (LCW-2 and LCW-3) subject to final design and find the project exempt from further review under CEQA, pursuant to Exemption Class 32.

INTRODUCTION
The 2015 Water Enterprise Plan (WEP) evaluated and identified several options for the City of Beverly Hills to reduce its dependence on Metropolitan Water District (MWD) imported water and increase its water reliability. Those options included several recommendations such as increased conservation measures, groundwater development, water banking, recycled water and other supply alternatives. In light of this, the City pursued revamping its groundwater development in the unadjudicated portion of the Central Basin (La Brea subarea). Consequently, a Preliminary Design Report (PDR) was prepared by consultant Hazen & Sawyer that evaluated the viability of installing three additional groundwater wells in the Central Basin, conveyance pipeline, and treatment at the existing Foothill Water Treatment Plant (FWTP). The PDR included La Cienega Wells 2 and 3. Since LCW-2 and LCW-3 are anticipated to be smaller producing wells, they will likely equate to one higher capacity well.

Meeting Date: November 21, 2023

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DISCUSSION
The City developed its first well in the Central Basin, La Cienega Well 1 (LCW-1), on Cityowned property located at 1956 Chariton Street in Los Angeles. This construction began in early 2020 and was completed earlier in 2023. The raw water transmission main from LCW-1 to the FWTP was constructed between June 2020 and June 2021. Since the development of LCW-1 started in 2020, staff has continued to search for other properties that may be suitable for groundwater production wells. Unfortunately, as of yet, no suitable properties have been acquired. To supplement groundwater supply, the Public Works Commission supported pursuing development of LCW-2 and LCW-3.

On December 6, 2022, City Council approved an agreement with consultant Kennedy/Jenks Consultants, Inc. (KJ) for the design of LCW-2 and LCW-3. During the preliminary engineering performed by KJ, six potential sites were identified at La Cienega Park. In the process of narrowing the selection to two well locations, many considerations were taken into account, including the distance to potential contaminants, potential conflicts with current and future park layout and operations, and minimum distance between the two future wells. Staff, including members of Public Works, Community Services and KJ, concluded that the two well sites should be: 1) the Le Doux well (LCW2) located on the southwest corner of the park near the intersection of Le Doux Road and Olympic Boulevard and 2) the Gregory well (LCW-3) located just west of the maintenance yard at the northeast corner of the park near the intersection of Gregory Way and Gale Drive. The project map is attached (Attachment 1).

Rincon Consultants, Inc., a subconsultant of KJ, analyzed the proposed project and prepared a Class 32 Categorical Exemption Report (Attachment 2). The project was found to: (a) be consistent with the general plan and applicable zoning regulations; (b) occupy a site less than five acres; (c) have no value for endangered, rare, or threatened species; (d) not have significant effects related to traffic, noise, air quality, or water quality; and (e) be adequately served by all required utilities and public services. Therefore, the project meets all the criteria for a Class 32 Categorical Exemption pursuant to Section 15332 of the CEQA guidelines and thus staff requests City Council find the project exempt (Attachment 3).

As part of the public outreach effort, staff presented the two proposed well sites to the Recreation & Parks Commission on June 27, 2023 for discussion. Theoretical construction layouts and renderings for each well site were displayed and potential impacts were discussed. The Recreation & Parks Commission was supportive of the project and the finalized two potential well sites. They thanked staff for their efforts to locate the potential well sites in areas that would minimize construction impacts as well as impacts to current and future park operations.

On July 26, 2023, staff met with representatives of the various recreational programs, such as the American Youth Soccer Organization (AYSO) and Beverly Hills Little League at La Cienega Park, to explore possible impacts to their play seasons and potential accommodations. Staff then met with consultant KJ at La Cienega park to review accommodations to the various recreational programs. Mitigation measures will include:
(1) starting the drilling project at the Le Doux well site first; (2) concurrently, build a batting cage on the west side of the baseball field at the Gregory Well site; and (3) demolition and drilling at the Gregory Well site will not start earlier than July 4, 2024. These requirements will be written into the drilling project specifications.

Meeting Date: November 21, 2023

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Recently, a virtual community meeting was held on November 8, 2023 at 6:00PM to discuss the project. Notices (Attachment 4) were mailed to all addresses within a 500- foot radius of the two proposed well sites, which included residents in Beverly Hills and Los Angeles. In addition, a project webpage (www.beverlyhills.org/LCW2&3) was published on the City’s website where the public notice and the Class 32 Exemption Report were posted.

FISCAL IMPACT
There is no fiscal impact at this time. Funds for this project are available as part of Fund 800 and 802, Capital Improvement Program 0916, La Brea Basin Well Development.

Shana Epstein,
Director of Public Works
Approved By
Attachment 1
¯
© Copyright 2021 City of Beverly Hills. All
rights reserved. Although we make every
effort to provide accurate data herein, this
map is only representational and no
warranties expressed or implied.

PROJECT MAP
Author: Tristan Malabanan
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City Boundary
Parcels
Date: 10/31/2023 5:49 PM
Gregory Well Le Doux Well
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Attachment 2
La Cienega Well Nos. 2 and 3 Project
Class 32 Categorical Exemption Report
prepared by
City of Beverly Hills
455 North Rexford Drive
Beverly Hills, California 90210
Contact: Tristan Malabanan, Project Manager
prepared with the assistance of
Rincon Consultants, Inc.
250 East 1st Street, Suite 1400
Los Angeles, California 90012
October 2023
r RINCON CONSULTANTS, INC.

Environmental Scientists I Planners I Engineers
rinconconsultants.com
La Cienega Well Nos. 2 and 3 Project
Class 32 Categorical Exemption Report
prepared by
City of Beverly Hills
455 North Rexford Drive
Beverly Hills, California 90210
Contact: Tristan Malabanan, Project Manager
prepared with the assistance of
Rincon Consultants, Inc.
250 East 1st Street, Suite 1400
Los Angeles, California 90012
October 2023
r RINCON CONSULTANTS, INC.

Environmental Scientists I Planners I Engineers
rinconconsultants.com
Table of Contents
Class 32 Categorical Exemption Report i
Table of Contents
1 Introduction....................................................................................................................................1 2 Project Location and Description....................................................................................................3

2.1 Project Location ..................................................................................................................3

2.2 Project Description..............................................................................................................3 3 Class 32 CE Consistency Analysis....................................................................................................1

3.1 Consistency with General Plan and Zoning.........................................................................1

3.2 Location, Size, and Surroundings........................................................................................2

3.3 Endangered, Rare, or Threatened Species Habitat.............................................................2

3.4 Significant Traffic, Noise, Air Quality, and Water Quality Impacts.....................................2

3.5 Utilities and Public Services ..............................................................................................19 4 Class 32 CE Exceptions Analysis....................................................................................................20

4.1 Location.............................................................................................................................20

4.2 Cumulative Impacts ..........................................................................................................20

4.3 Significant Effect ...............................................................................................................21

4.4 Scenic Highways................................................................................................................22

4.5 Hazardous Waste Sites......................................................................................................22

4.6 Historical Resources..........................................................................................................22 5 Summary.......................................................................................................................................24 6 References....................................................................................................................................25 Tables
Table 1 Consistency with City of Beverly Hills General Plan Policies.............................................1 Table 2 Phases 1 and 2 Construction Noise Levels at the Le Doux Well Site.................................6 Table 3 Phases 1 and 2 Construction Noise Levels at the Gregory Well Site.................................7 Table 4 Estimated Operational Noise Levels - Le Doux Well Site ..................................................9 Table 5 Estimated Operational Noise Levels - Gregory Well Site ................................................10 Table 6 SCAQMD Localized Significance Thresholds for Construction ........................................12 Table 7 SCAQMD Regional Significance Thresholds.....................................................................13 Table 8 Le Doux Well Construction Emissions.............................................................................14 Table 9 Gregory Well Construction Emissions.............................................................................15 Table 10 Le Doux Well Operational Emissions...............................................................................15 Table 11 Gregory Well Operational Emissions...............................................................................16 Table 12 Le Doux Well Localized Construction Emissions .............................................................16 Table 13 Gregory Well Localized Construction Emissions.............................................................17 City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
ii
Figures
Figure 1 Regional Project Location..................................................................................................7 Figure 2 Project Location.................................................................................................................8 Appendices
Appendix A Preliminary Site Layouts
Appendix B Environmental Due Diligence Analysis
Appendix C Noise and Vibration Study
Appendix D Air Quality and Greenhouse Gas Modeling
Appendix E Hazardous Materials and Wastes Technical Study Appendix F Cultural Resources Technical Report
Introduction
Class 32 Categorical Exemption Report 1
1 Introduction
This report serves as the technical documentation of an environmental analysis performed by Rincon Consultants, Inc. on behalf of the City of Beverly Hills (City) for the proposed La Cienega Well Nos. 2 and 3 Project (project) located on Assessor’s Identification Numbers (AIN) 4333-026-900 and 4333-031-900. The intent of the analysis is to document whether the project is eligible for a Class 32 Categorical Exemption (CE).

CEQA Guidelines Section 15332 states a project qualifies for use of a Class 32 CE when the following conditions are met:
a. The project is consistent with the applicable general plan designation and all applicable general plan policies as well as with applicable zoning designation and regulations. b. The proposed development occurs within city limits on a project site of no more than five acres substantially surrounded by urban uses.
c. The project site has no value as habitat for endangered, rare, or threatened species. d. Approval of the project would not result in any significant effects relating to traffic, noise, air quality, or water quality.
e. The site can be adequately served by all required utilities and public services.

Additionally, CEQA Guidelines Section 15300.2 outlines the cases in which projects that would normally be exempt from CEQA review would not be exempt. These exceptions are as follows:
▪ Location. Classes 3, 4, 5, 6, and 11 are qualified by consideration of where the project is to be located – a project that is ordinarily insignificant in its impact on the environment may in a particularly sensitive environment be significant. Therefore, these classes are considered to apply in all instances, except where the project may impact an environmental resource of hazardous or critical concern where designated, precisely mapped, and officially adopted pursuant to law by federal, state, or local agencies.
▪ Cumulative Impact. All exemptions for these classes are inapplicable when the cumulative impact of successive projects of the same type in the same place, over time is significant. ▪ Significant Effect. A categorical exemption shall not be used for an activity where there is a reasonable possibility that the activity will have a significant effect on the environment due to unusual circumstances.
▪ Scenic Highways. A categorical exemption shall not be used for a project which may result in damage to scenic resources, including but not limited to, trees, historic buildings, rock outcroppings, or similar resources, within a highway officially designated as a state scenic highway. This does not apply to improvements which are required as mitigation by an adopted negative declaration or certified Environmental Impact Report. ▪ Hazardous Waste Sites. A categorical exemption shall not be used for a project located on a site which is included on any list compiled pursuant to Section 65962.5 of the Government Code. ▪ Historical Resources. A categorical exemption shall not be used for a project which may cause a substantial adverse change in the significance of a historical resource.

The report provides an introduction, project description, and evaluation of the project’s consistency with the requirements for a Class 32 CE. This includes an analysis of the project’s potential impacts City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
2 in the areas of biological resources, traffic, air quality, noise, water quality, and historic resources as well as the applicability of the exceptions to use of a Class 32 CE. The report concludes that the project is eligible for a Class 32 CE.

Project Location and Description
Class 32 Categorical Exemption Report 3
2 Project Location and Description

2.1 Project Location
The two proposed groundwater well sites are comprised of the Le Doux Well site and the Gregory Well site. The Le Doux Well site consists of the southwestern corner of Frank Fenton Field within the portion of La Cienega Park located on AIN 4333-026-900. The Gregory Well site consists of the existing maintenance yard within the portion of La Cienega Park located on AIN 4333-031-900. The Gregory Well site is located at the eastern end of La Cienega Park and is bordered by Gregory Way to the north and single-family residences to the south/east. Both proposed well sites have a General Plan land use designation of “Parks” and are zoned “Parks, Reservoirs, Government (Unzoned)” by the City (City of Beverly Hills 2021 and 2022). Figure 1 shows the project site in a regional context and Figure 2 shows the project site at a local scale.

2.2 Project Description
The proposed project consists of construction and operation of two groundwater wells on two noncontiguous sites within La Cienega Park in Beverly Hills, Los Angeles County. The project would also include construction of an approximately 420-square-foot concrete masonry unit building around each well and installation of water pipelines that extend from the proposed wells to an existing raw water transmission main within La Cienega Boulevard. Both wells would be equipped with vertical turbine well pumps with aboveground motors with variable frequency drives, and both buildings would be equipped with heating, ventilation, and air conditioning equipment for the electrical rooms. Appendix A includes the preliminary layouts for each proposed well site.

Construction
Construction of the two wells would require site preparation, minimal grading, well drilling and constant rate testing during daytime hours, construction of the concrete masonry unit buildings, installation of water pipelines, and site restoration upon completion of construction. Construction would begin in January 2024 and would end in February 2025. The two wells would not be constructed simultaneously. No nighttime construction activities are proposed. Construction staging and materials laydown would occur adjacent to each well site.

Construction activities would include two phases - well drilling and well equipping - that would occur at both well sites. Phase 1 (well drilling) would include demolition, site preparation, grading, borehole drilling, zone testing, casing/gravel pack/cement seal installation, well development pumping, pump testing, and site restoration. Phase 2 (well equipping) would include well equipping (pump/column/motor), construction of a concrete masonry unit well building and appurtenances, architectural coating, pipeline installation, and site restoration.

Groundwater produced during well development would be discharged to the City’s storm drain pursuant to the City’s National Pollutant Discharge Elimination System (NPDES) permit. In addition, any solids settled out from drilling fluids during well development would be trucked away for disposal at an appropriately licensed, local landfill.

City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
4 During construction, the Le Doux Well site would be accessed via two approximately 15-foot-wide access ramps from Le Doux Road. The total construction impact area (inclusive of the permanent well footprint and the construction staging/laydown area) for the Le Doux Well site would encompass approximately 8,777 square feet (0.20 acre). Approximately 12 ornamental trees, primarily blue jacarandas and fig species, would be removed to accommodate construction site access, and the existing berm along the western side of the parcel would be removed during construction and partially replaced.

The total construction impact area (inclusive of the permanent well footprint and the construction staging/ laydown area) for the Gregory Well site would encompass approximately 16,106 square feet (0.37 acre), which would include portions of the existing maintenance yard and the La Cienega Park baseball field. The well itself would be installed within the existing maintenance yard, and impacts to the baseball field would be limited to temporary construction staging/laydown. The Gregory Well site would be accessed primarily via the existing maintenance yard gate with secondary access temporarily provided from the north on Gregory Way and/or at other locations within the maintenance yard (necessitating temporary removal of existing fencing/materials). One existing light pole associated with the baseball field may need to be removed and relocated in the immediate vicinity to accommodate the proposed well.

As part of the project design and construction contractor specifications and pursuant to local and state regulatory requirements, the City would require the following to be implemented prior to and during construction:
▪ Completion of nesting bird pre-construction surveys and nest avoidance measures if construction commences during the nesting season (typically February 1 through August 31) to achieve compliance with the Migratory Bird Treaty Act (MBTA) and California Fish and Game Code (CFGC)
▪ Completion of a pre-construction bat survey two weeks prior to the commencement of project construction activities. If construction activities would not commence until the next active season, (March to October), the City would require a focused bat habitat assessment to be conducted prior to November 1, 2023 to confirm whether on-site trees and structures provide suitable bat roosting habitat and are being actively used by roosting bats. If roosting bats are observed outside the maternity season (April to September), a 100-foot avoidance buffer would be established. If day roosts are observed, the City would temporarily pause work and prohibit tree removal in the buffer area until the bat leaves on its own. If pausing work is not feasible, a qualified biologist would be retained by the City to determine the bat species and best method of encouraging the bat to leave. If a maternity roost is observed, a 300-foot avoidance buffer would be established until the pups have weaned. Once the roost is inactive, exclusionary devices would be installed to prevent future roosting, if necessary for future work/tree removal.

If maternity roosts of special-status bat species are observed on-site, the City would coordinate with the California Department of Fish and Wildlife to identify additional avoidance and minimization measures
▪ Preparation of a Soil and Groundwater Management Plan (SGMP) prior to the commencement of construction. The SGMP would address on-site handling and management of impacted soils, groundwater, or other impacted wastes, and reduce hazards to construction workers and offsite receptors during construction. The SGMP would establish remedial measures and/or soil and groundwater management practices to ensure construction worker safety, the health of future workers and visitors, and prevent the off-site migration of contaminants from the site. In addition, if odorous or visually stained soils or groundwater, other indications of piping or Project Location and Description
Class 32 Categorical Exemption Report 5
equipment (including hydrocarbon piping or equipment), or debris are encountered during ground-disturbing activities, work in the immediate area would be halted and a qualified consultant would be contacted immediately to evaluate the site conditions. ▪ Implementation of standard construction best management practices in the event of an unanticipated discovery of archaeological resources. In the unlikely event that archaeological resources are encountered during ground-disturbing construction activities, work within 50 feet of the find would be required to halt, and an archaeologist meeting the Secretary of the Interior’s Professional Qualifications Standards for archaeology (National Park Service [NPS] 1983) would be contacted immediately to evaluate the resource. If the resource is determined by the qualified archaeologist to be prehistoric, then a Native American representative would also be contacted to participate in the evaluation of the resource. If the qualified archaeologist and/or Native American representative determines it to be appropriate, archaeological testing for California Register of Historical Resources eligibility would be completed. If the resource proves to be eligible for the California Register of Historical Resources and significant impacts to the resource cannot be avoided via project redesign, a qualified archaeologist would prepare a data recovery plan tailored to the physical nature and characteristics of the resource. ▪ To achieve regulatory compliance with the City’s noise ordinance, the City would require the construction contractor(s) to install a temporary sound barrier at a height of at least 24 feet along the boundaries of the Le Doux Well site and the Gregory Well site to reduce construction noise levels. The barrier would be constructed with a solid material that has a density of at least

1.5 pounds per square foot with no gaps from the ground to the top of the barrier. The temporary sound barrier would be in place during the bore hole drilling, casing and material installation, pump development, and pump testing stages of Phase 1. In addition, the City would require its construction contractor to prepare a Construction Noise Control Plan that includes the following measures. The details of the Construction Noise Control Plan would be included as part of the construction drawing set.
 At least 21 days prior to the start of construction activities, all off-site businesses and residents within 500 feet of the well sites would be notified of the planned construction activities. The notification would include a brief description of the project, the activities that would occur, the hours when construction would occur, and the construction period’s overall duration. The notification would include the telephone numbers of the City’s and contractor’s authorized representatives that are assigned to respond in the event of a noise or vibration complaint.  At least 10 days prior to the start of construction activities, a sign would be posted at the entrance(s) to the well sites, clearly visible to the public, that includes permitted construction days and hours, as well as the telephone numbers of the City’s and contractor’s authorized representatives that are assigned to respond in the event of a noise or vibration complaint. If the authorized contractor’s representative receives a complaint, the representative would investigate, take appropriate corrective action, and report the action to the City.  During the entire active construction period, equipment, tools, and trucks used for project construction would utilize the best available noise control techniques (e.g., improved mufflers, use of intake silencers, ducts, engine enclosures, and acoustically attenuating shields or shrouds), wherever feasible. During the entire active construction period, stationary noise sources would be located as far from sensitive receptors as feasible, muffled, and enclosed within temporary sheds or insulation barriers, or other measures for equivalent noise reduction would be incorporated to the extent feasible.

City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
6  The contractor would use impact tools that are hydraulically or electrically powered wherever feasible. Where the use of pneumatic tools is unavoidable, an exhaust muffler on the compressed air exhaust would be used along with external noise jackets on the tools.  Stockpiling of materials would be located as far as feasible from nearby noise-sensitive receptors.
 Signs shall be posted at the job site entrance(s) to reinforce the prohibition of unnecessary engine idling. All equipment would be turned off if not in use for more than five minutes.  Stereos and other amplified noise not necessary for the completion of construction work would be prohibited.
▪ During the entire active construction period and to the extent feasible, the use of noise producing signals, including horns, whistles, alarms, and bells shall be for safety warning purposes only. The construction manager would ensure the use of smart back-up alarms, which automatically adjust the alarm level based on the background noise level or switch off back-up alarms and replace with human spotters in compliance with safety requirements and laws.

Operations and Maintenance
The proposed groundwater wells would be unmanned upon the completion of construction activities. One operator would travel to the two wells approximately once a week for routine maintenance and inspection activities. More intensive maintenance activities to replace certain well components would occur once every approximately five to ten years. During operation, a minor quantity of “waste” groundwater produced during well blow-off and pump-to-water activities would be discharged to the City’s storm drain pursuant to its NPDES permit.

Project Location and Description
Class 32 Categorical Exemption Report 7
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City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
8 Figure 2 Project Location
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Class 32 CE Consistency Analysis
Class 32 Categorical Exemption Report 1
3 Class 32 CE Consistency Analysis

3.1 Consistency with General Plan and Zoning
15332(a) The project is consistent with the applicable general plan designation and all applicable general plan policies as well as with applicable zoning designation and regulations.

According to the City of Beverly Hills General Plan, the project site has a land use designation of “Parks” (City of Beverly Hills 2022). The City of Beverly Hills General Plan does not outline specific designated uses for the “Parks” land use. However, the project would not convert the use of the park to another land use. The proposed project would thus be consistent with the applicable General Plan land use designation.

Consistency with select applicable General Plan requirements for the Parks land use designation is presented in Table 1. As shown therein, the proposed project would be consistent with applicable General Plan policies.

Table 1 Consistency with City of Beverly Hills General Plan Policies Policy Consistency
LU 2.2 Public Streetscapes and Landscape. Maintain and
enhance the quality and health of the “green
infrastructure” that contributes to the City's identity and quality of life, including its street trees, landscaped medians and parkways, parks, and open spaces, while seeking to
conserve water resources.

Consistent. The proposed project would maintain the
quality of La Cienega Park, including Fenton Field, and would not affect the amount of parkland or open space
in the city because the two well buildings would be sited to avoid interference with recreational use of La Cienega Park. In addition, the ornamental street trees removed at the Le Doux Well site to accommodate construction
access would be replaced following the completion of
construction.

OS 8.1 Park and Open Space Standards. Strive to meet
National Recreation and Park standards for the provision of parks space based on the community's park needs and the number of residents
Consistent. The proposed project would not affect the
amount of park space in the city because it would not
reduce the recreational capacity of La Cienega Park,
including Fenton Field. Therefore, the project would not affect the City’s goal of meeting the National Recreation and Park standards.

OS 8.7 Recreational Parkland Replacement. Protect
parkland from non-recreational uses that result in loss of acreage used for recreational purposes; any loss of park land shall be replaced with acreage suitable for comparable uses so that the City's current park land acreage is not decreased.

Consistent. The two proposed well buildings would be
sited to avoid interference with recreational use of La Cienega Park, including Fenton Field. Therefore, the
proposed project would not result in loss of acreage for recreational purposes at La Cienega Park.

OS 9.7 Design Parks and Buildings to Maximize Views of
the Open Space and Minimize Impacts to Residential Uses.

Require public buildings that include open space and
recreational components to be designed to minimize the
perception of mass and allow visibility of the open space areas from the public right of way as much as practical, and to include noise and impact mitigation measures in its
design to minimize impacts to adjacent residential uses.

Consistent. The two proposed well buildings would be
relatively small in size and sited to minimize obstruction of views of La Cienega Park, including Fenton Field, from the public right-of-way with the Gregory Well sited in the City’s existing maintenance yard and the Le Doux Well
sited at the corner of Frank Fenton Field. Therefore, the proposed project would allow visibility of the open space areas from the public right-of-way as much as practical.

Source: City of Beverly Hills 2010a and 2010b
City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
2 The project site is zoned “Parks, Reservoirs, Government (Unzoned)” (City of Beverly Hills 2021a).

The “Unzoned” category is not a zoning classification but rather includes the City’s total parkland acreage (76.7 acres) as well as approximately 1.2 acres of additional “unzoned” land in the city (City of Beverly Hills 2005). Because the project site does not have a zoning classification by the City of Beverly Hills, there are no zoning requirements for the project site in the Beverly Hills Municipal Code. Therefore, the project would be consistent with the applicable zoning designation.

3.2 Location, Size, and Surroundings
15332(b) The proposed development occurs within city limits on a project site of no more than five acres substantially surrounded by urban uses.

The project site is located within two parcels (AINs 4333-026-900 and 4333-031-900) within Beverly Hills’ city limits. Although the combined acreage of these two parcels is greater than five acres, the project site itself has a total area of approximately 0.57 acre. In addition, the project site is immediately surrounded by urban uses, including roadways, La Cienega Park, residential neighborhoods, and Margaret Herrick Library.

3.3 Endangered, Rare, or Threatened Species Habitat
15332(c) The project site has no value as habitat for endangered, rare, or threatened species.

The project site is located within a highly developed urban area that lacks habitat that would be suitable for special status animal or plant species. As discussed in Section 2.1, Project Location, the project site consists of developed and landscaped areas within or adjacent to La Cienega Park. The landscaped areas consist primarily of ornamental trees, including jacaranda (Jacaranda mimosifolia), magnolia (Magnolia grandiflora), and pepper trees (Schinus molle), with ornamental shrubs and turf or other non-native grasses also present. No special status species have the potential to occur in the vicinity of the project site due to prior development, a lack of suitable habitat, and ongoing humanrelated disturbance (Appendix B). Therefore, the project site has no value as habitat for endangered, rare, or threatened species.

3.4 Significant Traffic, Noise, Air Quality, and Water
Quality Impacts
15332(d) Approval of the project would not result in any significant effects relating to traffic, noise, air quality, or water quality.

The following discussion provides an analysis of the project’s potential effects with respect to traffic, noise, air quality, and water quality.

Traffic
Construction Traffic
Construction traffic impacts would be significant if the project would create a prolonged impact due to lane closures; impede emergency vehicle access; create traffic hazards to bicycles and/or pedestrians; or result in similar substantial impediments to circulation or safety.

Class 32 CE Consistency Analysis
Class 32 Categorical Exemption Report 3
Construction of the proposed project is anticipated to require temporary, single-lane closures of La Cienega Boulevard during construction. Based on estimates provided by the project engineer, anticipated maximum number of daily truck trips for exporting debris would be four trips per day.

The trucks would be required to utilize the approved heavy haul routes through Beverly Hills (City of Beverly Hills 2009). The proposed project would not involve road closures that would significantly affect emergency vehicle access or create significant hazards to bicycles and pedestrians. In addition, the project would not require modifications to public transit, bikeways, or pedestrian facilities. Finally, construction traffic impacts would be temporary by nature and would have no effect on traffic and circulation beyond the construction period.

Operational Traffic
The proposed project would not introduce operational hazards such as sharp curves, dangerous intersections, or uses that would be incompatible with surrounding residential, commercial, civic, and institutional land uses. The proposed project would not result in any new traffic trips during the operational phase or be regularly accessed, other than for maintenance. The project is expected to result in one weekly trip to and from the site for routine inspection and maintenance activities and more intensive maintenance activities to replace certain well components once every five to ten years.

VMT Assessment
In 2013, Senate Bill 743 was signed into law and declared that “automobile delay, as described solely be level of service or similar measures of vehicular capacity or traffic congestion shall not be considered a significant impact on the environment.” It further directed the Office of Planning and Research (OPR) to develop revisions to the CEQA Guidelines to establish new criteria for determining the significance of transportation impacts. Senate Bill 743 changed the approach to transportation impact analysis by establishing measures such as vehicle miles traveled (VMT), VMT per capita, or automobile trip generation rates as the primary measures of transportation impacts and eliminates the traditionally-used measures of auto delay, level of service, and other measures of traffic congestion as the basis for determining significant impacts under CEQA. In December 2018, OPR adopted and promulgated its changes to the CEQA Guidelines and published its Advisory on Evaluating Transportation Impacts in response to SB 743.

CEQA Guidelines Section 15064.3(b) identifies criteria for evaluating transportation impacts.

Specifically, the guidelines state VMT exceeding an applicable threshold of significance may indicate a significant impact. According to CEQA Guidelines Section 15064.3(b)(3), a lead agency may include a qualitative analysis of operational and construction traffic if existing models or methods are not available to estimate the VMT for the particular project being considered. Such a qualitative analysis would evaluate factors such as the availability of transit, proximity to other destinations, and other factors. The City of Beverly Hills has adopted VMT thresholds, which include a screening criterion that any project that would generate fewer than 110 daily vehicle trips would result in a less than significant impact (City of Beverly Hills 2019).

A VMT calculation is typically conducted on a daily or annual basis, for long-range planning purposes. Traffic on local roadways would temporarily increase during project construction due to worker trips and the necessary transport of construction vehicles, equipment, and soil material to and from the project site. Increases in VMT from construction would be short-term, minimal, and temporary. Operation and maintenance activities under the proposed project would be minimal (one trip per week) and would therefore result in a nominal increase in VMT far below the City’s City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
4 screening criterion of 110 daily trips for a less-than-significant impact to VMT. Therefore, the project would not conflict or be inconsistent with CEQA Guidelines Section 15064.3(b), and no significant effects would occur with regard to VMT.

Site Access
Construction of the proposed project would require temporary, short-term, single-lane closures of La Cienega Boulevard during construction. Construction equipment would be staged on site. The Le Doux Well site would be accessed via two approximately 15-foot-wide access ramps from Le Doux Road. The Gregory Well site would be accessed primarily via the existing maintenance yard gate with secondary access provided from the north on Gregory Way and/or at other locations within the maintenance yard. Site access to the park would be maintained during construction, although project work areas would be closed to the public. Upon the completion of construction, access to the park would be restored to existing conditions and temporary single-lane closures and associated detours along La Cienega Boulevard would be removed. During operation, site access to the Le Doux Well site would be provided via a driveway off Le Doux Road, and site access to the Gregory Well site would be provided via a driveway off Gregory Way. Therefore, no significant effects would occur with regard to site access.

Conclusion
The proposed project would not result in significant traffic effects.

Noise
Noise Characteristics and Measurement
Sound is a vibratory disturbance created by a moving or vibrating source, which is capable of being detected by the hearing organs. Noise is defined as sound that is loud, unpleasant, unexpected, or undesired and may therefore be classified as a more specific group of sounds. Noise levels are commonly measured in decibels (dB) using the A-weighted sound pressure level (dBA). The Aweighting scale is an adjustment to the actual sound pressure levels so that they are consistent with the human hearing response. Decibels are measured on a logarithmic scale that quantifies sound intensity in a manner similar to the Richter scale used to measure earthquake magnitudes. One of the most frequently used noise metrics that considers duration as well as sound power level is the equivalent noise level (Leq). The Leq is defined as the single steady-state A-weighted sound level equal to the average sound energy over a time period. When no time period is specified, a 1-hour period is assumed. Noise that occurs at night tends to be more disturbing than noise occurring during the day. Community noise can be measured using Community Noise Equivalent Level (CNEL), which is the 24-hour average noise level with a +5 dBA penalty for noise occurring from 7:00 p.m. to 10:00 p.m. and a +10 dBA penalty for noise occurring from 10:00 p.m. to 7:00 a.m.

Noise Standards
The City’s General Plan Noise Element and the City’s Noise Ordinance (Beverly Hills Municipal Code [BHMC] Sections 5-1-101 through 5-1-210) include noise policies, standards, and regulations that address unnecessary, excessive, and annoying noise levels and sources, such as vehicles, construction, special sources (e.g., radios, musical instrument, animals) and stationary sources (e.g., heating and cooling systems, mechanical rooms). Relevant goals, policies, and regulations from the Noise Element and Noise Ordinance are outlined in Appendix C.

Class 32 CE Consistency Analysis
Class 32 Categorical Exemption Report 5
Existing Noise Setting
Noise exposure goals for various types of land uses reflect the varying noise sensitivities associated with those uses. The Beverly Hills General Plan Noise Element identifies noise-sensitive land uses as those uses that have associated human activities that may be subject to stress or significant interference from noise, such as residences (including residences for the elderly), schools, churches, and libraries (City of Beverly Hills 2010c).

The nearest noise-sensitive receptors to the Le Doux Well site include multi-family and single-family residences approximately 25 feet to the west across Le Doux Road, multi-family residences approximately 135 feet to the south across West Olympic Boulevard, and the Margaret Herrick Library approximately 145 feet to the north. Noise-sensitive receptors near the Gregory Well site include multi-family and single-family residences approximately 40 feet to the northeast across Gregory Way and single-family residences approximately 100 feet to the south along Schumacher Drive.

The most common source of noise in the project site vicinity is vehicular traffic on West Olympic Boulevard, La Cienega Boulevard, and Gregory Way. To characterize ambient noise levels in the project vicinity, eight short-term (10-minute) and two long-term (24-hour) noise level measurements were conducted on March 16, March 17, March 23, and March 24, 2023. Based on the results of these noise measurements, ambient noise levels in the project site vicinity range from 46 to 75 dBA Leq and 60 to 67 CNEL. Detailed sound level measurement data, including a map of locations, are included in Appendix C.

Construction Noise
Construction activity would generate temporary noise in the project site vicinity, exposing surrounding nearby receptors to increased noise levels. Construction noise would typically be higher during the heavier periods of initial construction (i.e., demolition, site preparation, and casing and material installation) and would be lower during the later construction phases (i.e., architectural coating and site restoration). Typical heavy construction equipment could include dozers, loaders, graders, and dump trucks. Construction activities would occur primarily between the hours of 8:00 a.m. and 6:00 p.m. on Mondays through Fridays as required by BHMC Section 5-1-205 with the exception of the pump testing activities, which could also occur on Saturday between the hours of 8:00 a.m. to 6:00 p.m. with issuance of an after-hours construction permit.

Construction activities would be located as close as 25 feet to the closest sensitive receptors at the Le Doux Well site and as close as 40 feet at the Gregory Well site but would typically be located at an average distance further away from these receptors due to the dynamic nature of construction.

A temporary sound barrier would be erected during the bore hole drilling, casing and material installation, pump development, and pump testing stages of Phase 1. The temporary sound wall would reduce construction noise levels by at least 15 dBA during these construction stages (Appendix C).

Le Doux Well
The closest sensitive receptors to the Le Doux Well site are the residences to the west and south and the Margaret Herrick Library to the north. Over the course of a typical construction day, construction equipment would be located as close as 25 feet to the nearest sensitive receptors but would typically be located at an average distance further away due to the dynamic nature of construction where equipment is mobile throughout the day. Table 2 identifies the estimated noise City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
6 levels for construction during Phases 1 and 2 of construction at the closest sensitive receptors.

Construction noise was measured from the center of the Le Doux Well site and conservatively assumed combined use of all construction equipment during each phase of construction.

Table 2 Phases 1 and 2 Construction Noise Levels at the Le Doux Well Site Estimated Noise Levels (dBA Leq)
Construction Stage Residences to the West1 Residences to the South2 Margaret Herrick Library
to the North3
Phase 1
Demolition 86 77 78
Site Preparation 80 72 73
Bore Hole Drilling4 66 58 59
Casing and Material
Installation4
69 61 62
Pump Development4 67 59 60
Pump Testing4 56 48 49
Site Restoration and
Fencing 75 67 68
Phase 2
Site Preparation 76 68 69
Well Equipping 82 74 75
Well Building 85 77 78
Architectural Coating 78 70 71
Pipeline Installation 83 74 75
Site Restoration and
Landscaping 73 65 66
dBA = A-weighted sound-pressure level; Leq = equivalent noise level 1 Noise levels estimated at an average distance of 75 feet. 2 Noise levels estimated at an average distance of 195 feet. 3 Noise levels estimated at an average distance of 175 feet. 4 A 15-dBA reduction was taken to account for the temporary sound barrier that would be erected during these construction stages.

Source: Appendix C.

As shown in Table 2, construction noise levels at the nearest sensitive receptors (the residences located west of the Le Doux Well site) could be as high as 86 dBA Leq during the demolition stage of Phase 1, which would occur approximately 75 feet away. Project construction would result in a significant noise impact if construction activities generate a noise level increase of 5 dBA outside the hours permitted by the City’s Noise Ordinance (BHMC Section 5-1-205) or increase ambient noise levels by 5 dBA or more during daytime hours at a school, hospital, church, or institute of learning.

Project construction undertaken during weekdays between the hours of 8:00 a.m. and 6:00 p.m. at the Le Doux Well site would comply with the allowable hours of construction established in the City’s Noise Ordinance and would not occur within 500 feet of a school, hospital, church, or institute of learning. However, limited pump testing activities during construction may occur on Saturdays, Class 32 CE Consistency Analysis
Class 32 Categorical Exemption Report 7
which would be outside the hours permitted by the City’s Noise Ordinance. Ambient noise levels at the residences to the west and south of the Le Doux Well site and at the Margaret Herrick Library are 66 dBA Leq, 75 dBA Leq, and 56 dBA Leq, respectively. Pump testing activities during construction would be approximately 56 dBA Leq at the residences to the west, 48 dBA Leq at the residences to the south, and 49 dBA Leq at the Margaret Herrick Library, which would not exceed ambient noise levels (Appendix C). Therefore, construction at the Le Doux Well site would not generate a substantial temporary increase in ambient noise levels at the nearest sensitive receptors, and a significant impact would not occur.

Gregory Well
The closest sensitive receptors to the Gregory Well site are single-family residences to the south and northeast. Over the course of a typical construction day, construction equipment would be located as close as 40 feet to these sensitive receptors but would typically be located at an average distance farther away due to the dynamic nature of construction where equipment is mobile throughout the day. Table 3 identifies the estimated noise levels during Phases 1 and 2 of construction at the closest sensitive receptors. Construction noise was measured from the center of the Gregory Well site and conservatively assume the combined use of all construction equipment during each phase of construction.

Table 3 Phases 1 and 2 Construction Noise Levels at the Gregory Well Site Estimated Noise Levels (dBA Leq)
Construction Stage Residences to the South1 Residences to the Northeast2 Phase 1
Demolition 81 83
Site Preparation 76 77
Bore Hole Drilling3 61 63
Casing and Material Installation3 65 66
Pump Development3 63 65
Pump Testing3 52 53
Site Restoration and Fencing 70 72
Phase 2
Site Preparation 71 73
Well Equipping 78 79
Well Building 81 82
Architectural Coating 74 76
Pipeline Installation 78 80
Site Restoration and Landscaping 69 71
dBA = A-weighted sound-pressure level. Leq = equivalent noise level 1 Noise levels estimated at an average distance of 130 feet. 2 Noise levels estimated at an average distance of 105 feet. 3 A 15-dBA reduction was taken to account for the temporary sound barrier that would be erected during these construction stages.

Source: Appendix C.

City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
8 As shown in Table 3, construction noise levels could be as high as 83 dBA Leq at the nearest sensitive receptors (e.g., the residences located northeast of the Gregory Well site) during the demolition stage of Phase 1, which would occur approximately 105 feet away. Project construction would result in a significant noise impact if construction activities generate a noise level increase of 5 dBA outside the hours permitted by the City’s Noise Ordinance (BHMC Section 5-1-205) or increase ambient noise levels by 5 dBA or more during daytime hours at a school, hospital, church, or institute of learning. Project construction undertaken during weekdays between the hours of 8:00 a.m. and 6:00 p.m. at the Gregory Well site would comply with the allowable hours of construction established in the Noise Ordinance and would not occur within 500 feet of a school, hospital, church, or institute of learning. However, limited pump testing activities during construction may occur on Saturdays, which would be outside the hours permitted by the City’s Noise Ordinance. Ambient noise levels at the residences to the south and northeast of the Gregory Well site are 48 dBA Leq and 63 dBA Leq, respectively. As shown in Table 3, pump testing activities during construction would be approximately 52 dBA Leq and 53 dBA Leq at these sensitive receptors, respectively, which would not result in an increase of 5 dBA at either receptor (Appendix C). Therefore, construction at the Gregory Well site would not generate a substantial temporary increase in ambient noise levels at the nearest sensitive receptors, and a significant impact would not occur. Furthermore, the project would include implementation of a construction noise control plan that would further minimize construction noise levels at nearby noise-sensitive receptors.

On-site Operational Noise
The project consists of two groundwater wells that would be equipped with vertical turbine well pumps with aboveground motors with variable frequency drives. Well buildings would enclose each well and contain a pump room and an electrical room. The well would be located in the pump room with a ventilation system inlet louver and electric fan equipped with noise dampeners. Each electrical room would be equipped with HVAC units, and each well site would have a transformer.

Le Doux Well
Table 4 shows the combined noise levels from operation of the Le Doux Well at the nearest sensitive receptors. As shown therein, noise generated by operation of the Le Doux Well would reach up to 56 dBA CNEL at the residences to the south and would result in a noise level increase of less than 1 dBA, which would not exceed the operational noise threshold of 1 dBA for receptors within the vicinity of the Le Doux Well site. As such, operation of the Le Doux Well would not generate a substantial permanent increase in ambient noise levels at the nearest sensitive receptors, and a significant impact would not occur.

Class 32 CE Consistency Analysis
Class 32 Categorical Exemption Report 9
Table 4 Estimated Operational Noise Levels - Le Doux Well Site Noise Source
Noise Level at
Residences to the West
(dBA)1
Noise Level at MultiFamily Residences to
the South (dBA)2
Noise Level at Margaret
Herrick Library to the
North (dBA)3
On-site Noise Sources
Pump4 (Leq) 40 33 30
HVAC Unit (Leq) 46 49 45
Transformer (Leq) 14 7 4
Overall Noise Level (Leq) 47 49 45
Overall Noise Level (CNEL) 53 56 52
Existing + Operational Project Noise
Existing Noise Level (CNEL)4 67 67 67
Existing Noise Level + Operational
Project Noise (CNEL) 67 67 67
Project-Related Noise Level
Increase < 1 < 1 < 1
Threshold of Significance5 1 1 1
Threshold Exceeded? No No No
dBA = A-weighted sound-pressure level; Leq = equivalent noise level; CNEL = Community Noise Level. 1 Noise levels estimated at a distance of 115 feet.
2 Noise levels estimated at a distance of 145 feet.
3 Noise levels estimated at a distance of 200 feet.
4 Noise generated by the pump includes a 10-dBA reduction to account for enclosure in the pump room with ventilation system inlet louvers and electric fans equipped with noise dampeners. 5 See Appendix C for existing ambient noise levels.
6 Based on Appendix C, with an existing ambient noise level of 67 dBA CNEL, project operation would generate a significant impact if noise levels at the property line of nearest sensitive receptors increase by more than 1 dBA.

Note: Shielding effects from off-site buildings, terrain or other barriers are conservatively not factored into the attenuation calculations for the purposes of this analysis.

See Appendix C for operational noise modeling.

Gregory Well
Table 5 shows the combined noise levels from operation of the Gregory Well at the nearest sensitive receptors. As shown in the table, noise generated by operation of the Gregory Well would reach up to 58 dBA CNEL at the residences to the south and would result in a noise level increase of up to approximately 2 dBA, which would not exceed the operational noise threshold of 2 dBA for receptors within the vicinity of the Gregory Well. As such, operation of the Gregory Well would not generate a substantial permanent increase in ambient noise levels at the nearest sensitive receptors, and impacts would be less than significant.

City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
10 Table 5 Estimated Operational Noise Levels - Gregory Well Site Noise Source
Noise Level at Residences to the
South (dBA)1
Noise Level at Residences to the
Northeast (dBA)2
On-site Noise Sources
Pump3 (Leq) 36 40
HVAC Unit (Leq) 51 46
Transformer (Leq) 10 14
Combined Noise Level (Leq) 52 47
Combined Noise Level (CNEL) 58 54
Existing + Operational Project Noise
Existing Noise Level (CNEL)4 60 60
Existing Noise Level + Operational Project
Noise (CNEL)
62 61
Project-Related Noise Level Increase 2 1
Threshold of Significance5 2 2
Threshold Exceeded? No No
dBA = A-weighted sound-pressure level; Leq = equivalent noise level; CNEL = Community Noise Level 1 Noise levels estimated at an average distance of 100 feet. 2 Noise levels estimated at an average distance of 60 feet. 3 Noise generated by the pump includes a 10-dBA reduction to account for enclosure in the pump room with ventilation system inlet louvers and electric fans equipped with noise dampeners. 4 See Appendix C for existing ambient noise levels.
5 Based on Appendix C, with an existing ambient noise level of 60 dBA CNEL, project operation would generate a significant impact if noise levels at the property line of nearest sensitive receptors increase by more than 2 dBA.

Note: Shielding effects from off-site buildings, terrain or other barriers are conservatively not factored into the attenuation calculations for the purposes of this analysis.

See Appendix C for operational noise modeling.

Off-site Roadway Noise
As discussed in Appendix C, the average healthy ear can barely perceive an increase of up to 3 dBA in noise levels, and a change of 5 dBA is readily perceptible. Based on this information, off-site traffic noise impacts would be significant if project-related traffic would increase off-site traffic noise levels by 3 dBA or greater. Generally, a doubling of traffic (i.e., a doubling of the sound energy) would result in a 3 dBA increase (Appendix C).

Le Doux Road (north of West Olympic Boulevard) and Gregory Way (east of La Cienega Boulevard) serve as the primary local access roadways for the Le Doux Well site and the Gregory Well site, respectively. Le Doux Road and Gregory Way are residential streets that provide local access and have relatively lower traffic volumes as compared to major streets such as West Olympic Boulevard and La Cienega Boulevard. During operation of the project, one operator would travel to the two well sites once a week, which would result in two additional one-way vehicle trips on Le Doux Road, Gregory Way, and other larger area roadways. As a result, operation of the project would not have the potential to double existing traffic volumes on Le Doux Road or Gregory Way such that a Class 32 CE Consistency Analysis
Class 32 Categorical Exemption Report 11
perceptible 3-dBA increase in traffic noise levels would occur. Therefore, the nominal increase in traffic volumes associated with the proposed project would not result in a substantial permanent increase in ambient noise levels at the nearest sensitive receptors, and impacts related to roadway noise levels would not be significant.

Conclusion
The proposed project would not result in significant noise effects.

Air Quality
The federal and State Clean Air Acts (CAA) mandate the control and reduction of certain air pollutants. Under these laws, the United States Environmental Protection Agency (U.S. EPA) and the California Air Resources Board (CARB) have established the National Ambient Air Quality Standards (NAAQS) and the California Ambient Air Quality Standards (CAAQS) for “criteria pollutants” and other pollutants. Some pollutants are emitted directly from a source (e.g., vehicle tailpipe, an exhaust stack of a factory, etc.) into the atmosphere, including carbon monoxide, volatile organic compounds (VOC)/reactive organic gases (ROG),1 nitrogen oxides (NOX), particulate matter with diameters of ten microns or less (PM10) and 2.5 microns or less (PM2.5), sulfur dioxide, and lead.

Other pollutants are created indirectly through chemical reactions in the atmosphere, such as ozone, which is created by atmospheric chemical and photochemical reactions primarily between ROG and NOX. Secondary pollutants include oxidants, ozone, and sulfate and nitrate particulates (smog).

A significant adverse air quality impact may occur when a project conflicts with or obstructs implementation of the applicable air quality plan; results in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard; exposes sensitive receptors to substantial pollutant concentrations; or results in other emissions (such as those leading to odors) adversely affecting a substantial number of people.

The project site is located within the South Coast Air Basin (Basin) and falls under the jurisdiction of South Coast Air Quality Management District (SCAQMD). The Basin is designated a nonattainment area for NAAQS for ozone, PM2.5, and lead. The Basin is also in non-attainment for CAAQS for ozone, PM10, and PM2.5. The SCAQMD has adopted guidelines for quantifying and determining the significance of air quality emissions in CEQA Air Quality Handbook (SCAQMD 1993).

Localized Significance Thresholds
The SCAQMD has also developed Localized Significance Thresholds (LST) as a tool to assist lead agencies in analyzing localized air quality impacts to sensitive receptors in the vicinity of a project.

The SCAQMD’s LST Methodology outlines how to analyze localized impacts from common pollutants of concern including nitrogen dioxide, carbon monoxide, PM10, and PM2.5 (SCAQMD 2008). Localized air quality impacts would occur if pollutant concentrations at sensitive receptors exceeded applicable NAAQS or CAAQS.
1 CARB defines VOC and ROG similarly as, “any compound of carbon excluding carbon monoxide, carbon dioxide, carbonic acid, metallic carbides or carbonates, and ammonium carbonate,” with the exception that VOC are compounds that participate in atmospheric photochemical reactions. For the purposes of this analysis, ROG and VOC are considered comparable in terms of mass emissions, and the term ROG is used in this report.

City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
12 To streamline the analysis of localized criteria air pollutant emissions, the SCAQMD developed mass rate lookup tables as a simple screening procedure. If a project’s on-site emissions do not exceed the screening levels for any pollutant, it can be concluded the project would not cause or contribute to an adverse localized air quality impact. Screening levels are provided for various distances between the project boundary and the nearest sensitive receptor and various project site acreages.

Screening levels increase as the project distance between the boundary and the nearest receiver increases. This is because air pollutant dispersion increases with distance. Screening levels also increase as the project site acreage increases. This is because the distance between construction sources and sensitive receptors increases with project acreage.

The LST mass rate lookup tables account for ambient pollutant concentrations based on the project’s source receptor area (SRA). The LST methodology includes screening levels for one-, two-, and five-acre sites at distances of 82 feet (25 meters), 164 feet (50 meters), 328 feet (100 meters), 656 feet (200 meters), and 1,640 feet (500 meters). Screening levels are more stringent for smaller sites because they represent a more concentrated release.

LSTs have been developed for emissions generated by construction sites up to five acres in size.

Both well sites are located in SRA 2 (Northwest Coastal LA County) and are less than one acre in size each. Therefore, pursuant to SCAQMD guidance, the one-acre LSTs were utilized for this analysis (SCAQMD 2008). The closest sensitive receptors to the Le Doux Well site are single-family and multifamily homes immediately adjacent to Le Doux Road; and the closest sensitive receptors to the Gregory Well site are single-family residences located 40 feet to the south. According to SCAQMD, projects with boundaries located closer than 82 feet to the nearest receptor should use the LSTs for receptors located at 82 feet (SCAQMD 2008). LSTs for construction on a one-acre site in SRA 2 for a receptor at 25 meters (82 feet) are shown Table 6.

Table 6 SCAQMD Localized Significance Thresholds for Construction Pollutant
Localized Significance Thresholds for a One-Acre Site
in SRA 2 for a Receptor at 25 Meters (pounds/day)
Gradual conversion of NOx to NO2 571
CO 562
PM10 4
PM2.5 2
2 NOx = nitrogen oxide; NO2 = nitrogen dioxide; CO = carbon monoxide; PM10 = particulate matter with a diameter no more than 10 microns; PM2.5 = particulate matter with a diameter no more than 2.5 microns 1 The screening criteria for NOx were developed based on the 1-hour NO2 CAAQS of 0.18 parts per million (ppm). Subsequent to publication of the SCAQMD’s guidance, the USEPA promulgated a 1-hour NO2 NAAQS of 0.100 ppm. This is based on a 98th percentile value, which is more stringent than the CAAQS. Because SCAQMD’s LSTs have not been updated to address this new standard, to determine if project emissions would result in an exceedance of the 1-hour NO2 NAAQS, an approximated LST was estimated to evaluate the federal 1-hour NO2 standard. The revised LST threshold is calculated by scaling the NO2 LST for by the ratio of 1-hour NO2 standards (federal/State) (i.e., 103 pounds/day * (0.10/0.18) = 57.2 pounds/day). 2 The screening criteria for PM2.5 were developed based on an annual CAAQS of 15 micrograms per cubic meter (mg/m3 ). Subsequent to
publication of the SCAQMD’s guidance, the annual standard was reduced to 12 mg/m3. Because SCAQMD’s LSTs have not been updated to address this new standard, to determine if project emissions would result in an exceedance of the annual PM2.5 CAAQS, an approximated LST was estimated. The revised LST threshold is calculated by scaling the PM2.5 LST for by the ratio of 24-hour PM2.5 standards (federal/State) (i.e., 3 pounds/day * (12/15) = 2.4 pounds/day).

Source: SCAQMD 2009
Class 32 CE Consistency Analysis
Class 32 Categorical Exemption Report 13
Regional Significance Thresholds
The SCAQMD recommends quantitative regional significance thresholds for temporary construction activities and long-term project operation in the region of the Basin overseen by SCAQMD, as shown in Table 7.

Table 7 SCAQMD Regional Significance Thresholds
Pollutant
Mass Daily Emissions Thresholds (pounds/day)
Construction Operation
VOC 75 55
NOX 100 55
CO 550 550
SOX 150 150
PM10 150 150
PM2.5 55 55
VOC = volatile organic compounds; NOX = nitrogen oxides; CO = carbon monoxide; SOX= sulfur oxides; PM10 = particulate matter with a diameter no more than 10 microns; PM2.5 = particulate matter with a diameter no more than 2.5 microns Source: SCAQMD 2023
Consistency with Applicable Air Quality Plan
SCAQMD Air Quality Management Plan
The SCAQMD’s 2022 AQMP includes a variety of strategies such as regulation, accelerated deployment of available cleaner technology, best management practices, co-benefits from existing programs, incentives, and other Clean Air Act measures to meet the NAAQS and CAAQS. The AQMP also incorporates the transportation strategy and transportation control measures from the Southern California Association of Government’s (SCAG) 2020-2045 Regional Transportation Plan (RTP)/Sustainable Communities Strategy (SCS) (Connect SoCal) (SCAG 2020).

A project may be inconsistent with the AQMP if it would generate population, housing, or employment growth exceeding the forecasts used in development of the AQMP. The 2022 AQMP relies on local general plans and the demographic forecasts contained in the 2020 RTP/SCS in its projections for managing air quality in the Basin. As such, projects that propose development that is consistent with the growth anticipated by SCAG’s growth projections and/or the General Plan would not conflict with the SCAQMD AQMP.

The growth forecasts in 2020 RTP/SCS estimate the population of Beverly Hills will be 35,800 in 2045, an increase of 1,100 people from a population of 34,700 in 2016 (SCAG 2020). The proposed project does not involve the construction of housing and thus would not directly induce population growth. The project consists of construction of two new groundwater wells which would increase groundwater production in order to meet the supply forecasts of the City’s Urban Water Management Plan (UWMP) to serve existing and planned growth within the city. The project would not make additional water supplies available to support unplanned growth beyond that anticipated in the City’s UWMP. As such, the project also would not indirectly result in population growth.

Furthermore, as shown in Table 8 through Table 13, the project would not generate criteria pollutant emissions in excess of SCAQMD thresholds for ozone precursors (VOC and NOX) or PM2.5.

Therefore, the project would be consistent with the AQMP.

City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
14 Criteria Pollutant Emissions
The Basin is a non-attainment area for the NAAQS for ozone, PM2.5, and lead. The Basin is also in non-attainment for the CAAQS for ozone, PM10, and PM2.5. The project does not include stationary sources of lead emissions. Therefore, implementation of the project would not result in substantial emissions of lead and this pollutant is not discussed further in this analysis.

The discussion below assesses potential air quality impacts related to construction and operational emissions of criteria air pollutants for which the Basin is in non-attainment, including ozone, PM10, and PM2.5. The following subsections discuss emissions associated with construction and operation of the proposed project. Air pollutant emissions generated by project construction and operation were estimated using the California Emissions Estimator Model (CalEEMod), version 2022.1 based on project-specific information.

Construction Emissions
Project construction would generate temporary air pollutant emissions associated with fugitive dust (PM10 and PM2.5) and exhaust emissions from heavy construction equipment and construction vehicles. In addition, construction activities would release VOC emissions during the drying of architectural coatings and paving. Table 8 and Table 9 summarize the estimated maximum daily emissions of pollutants during project construction for the Le Doux Well site and the Gregory Well site. As shown therein, construction-related emissions at both sites would not exceed SCAQMD thresholds. Therefore, project construction would not result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or State ambient air quality standard.

Table 8 Le Doux Well Construction Emissions
Maximum Emissions (pounds/day)
Year VOC NOx CO SO2 PM10 PM2.5
2024 4 28 30 <1 4 2
2025 7 12 15 <1 1 <1
Maximum Daily Construction
Emissions
7 28 30 <1 4 2
SCAQMD Regional Thresholds 75 100 550 150 150 55
Threshold Exceeded? No No No No No No
VOC = volatile organic compounds; NOX = nitrogen oxides; CO = carbon monoxide; SO2 = sulfur dioxide; PM10 = particulate matter 10 microns in diameter or less; PM2.5 = particulate matter 2.5 microns in diameter or less Notes: All emissions modeling was completed using CalEEMod. See Appendix D for modeling results. Some numbers may not add up due to rounding. Emissions presented are the highest of the winter and summer modeled emissions.

Class 32 CE Consistency Analysis
Class 32 Categorical Exemption Report 15
Table 9 Gregory Well Construction Emissions
Maximum Emissions (pounds/day)
Year VOC NOx CO SO2 PM10 PM2.5
2025 3 24 26 <1 4 2
2026 11 22 25 <1 1 1
Maximum Daily Construction
Emissions
11 24 26 <1 4 2
SCAQMD Regional Thresholds 75 100 550 150 150 55
Threshold Exceeded? No No No No No No
VOC = volatile organic compounds; NOX = nitrogen oxides; CO = carbon monoxide; SO2 = sulfur dioxide; PM10 = particulate matter 10 microns in diameter or less; PM2.5 = particulate matter 2.5 microns in diameter or less Notes: All emissions modeling was completed using CalEEMod. See Appendix D for modeling results. Some numbers may not add up due to rounding. Emissions presented are the highest of the winter and summer modeled emissions.

Operational Emissions
Operation of the project would generate criteria air pollutant emissions associated with area sources (e.g., architectural coatings) and mobile sources (i.e., vehicle trips to and from the sites for maintenance).2 Table 10 and Table 11 summarize the maximum daily operational emissions by emission source for the Le Doux Well site and Gregory Well site. As shown therein, operational emissions at both sites would not exceed SCAQMD regional thresholds for criteria pollutants.

Therefore, project operation would not result in a cumulatively considerable net increase of any criteria pollutant for which the project region is in non-attainment.

Table 10 Le Doux Well Operational Emissions
Emission Source
Maximum Daily Emissions (pounds/day)
VOC NOX CO SO2 PM10 PM2.5
Area <1 <1 <1 <1 <1 <1
Mobile <1 <1 1 <1 <1 <1
Total Le Doux Well Emissions <1 <1 1 <1 <1 <1
SCAQMD Regional Thresholds 55 55 550 150 150 55
Threshold Exceeded? No No No No No No
VOC = volatile organic compounds; NOx = nitrogen oxide; CO = carbon monoxide; SO2 = sulfur dioxide; PM10 = particulate matter 10 microns in diameter or less; PM2.5 = particulate matter 2.5 microns in diameter or less Notes: All emissions modeling was completed using CalEEMod. See Appendix D for modeling results. Some numbers may not add up due to rounding. Emissions presented are the highest of the winter and summer modeled emissions. 2 No air pollutant emissions would be generated by energy sources because the project does not include natural gas connections.

City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
16 Table 11 Gregory Well Operational Emissions
Emission Source
Maximum Daily Emissions (pounds/day)
VOC NOX CO SO2 PM10 PM2.5
Area <1 <1 1 <1 <1 <1
Mobile <1 <1 2 <1 <1 <1
Total Gregory Well Emissions <1 <1 3 <1 <1 <1
SCAQMD Regional Thresholds 55 55 550 150 150 55
Threshold Exceeded? No No No No No No
VOC = volatile organic compounds; NOx = nitrogen oxide; CO = carbon monoxide; SO2 = sulfur dioxide; PM10 = particulate matter 10 microns in diameter or less; PM2.5 = particulate matter 2.5 microns in diameter or less Notes: All emissions modeling was completed using CalEEMod. See Appendix D for modeling results. Some numbers may not add up due to rounding. Emissions presented are the highest of the winter and summer modeled emissions.

Exposure of Sensitive Receptors
According to SCAQMD, sensitive receptors include residences, schools, playgrounds, childcare centers, long-term healthcare facilities, rehabilitation centers, convalescent centers, and retirement homes (SCAQMD 1993). Sensitive receptors in the project vicinity include single-family and multifamily residences west of the Le Doux Well site immediately adjacent to Le Doux Road, as well as single-family residences south of the Gregory Well site. Localized air quality impacts to sensitive receptors typically result from localized criteria air pollutant emissions and toxic air contaminants (TACs), which are discussed in the following subsections.

Localized Criteria Air Pollutant Emissions
Table 12 and Table 13 summarize the maximum localized daily construction emissions from the Le Doux Well site and the Gregory Well site. As shown therein, localized emissions of criteria air pollutant emissions would not exceed SCAQMD’s LST thresholds. Therefore, project construction would not expose sensitive receptors to substantial concentrations of criteria air pollutants.

Table 12 Le Doux Well Localized Construction Emissions
Maximum Daily Emissions (pounds/day)
VOC NOX CO SO2 PM10 PM2.5
Maximum On-site Emissions 4 28 30 <1 4 2
SCAQMD LSTs (for One-Acre
Site at 25 Meters in Source
Receptor Area 2)
N/A 57 562 N/A 4 2
Threshold Exceeded? N/A No No N/A No No
VOC = volatile organic compounds; NOx = nitrogen oxide; CO = carbon monoxide; SO2 = sulfur dioxide; PM10 = particulate matter with a diameter no more than 10 microns; PM2.5 = particulate matter with a diameter no more than 2.5 microns; SOx = sulfur oxide Notes: All emissions modeling was completed using CalEEMod. See Appendix D for modeling results. Some numbers may not add up precisely due to rounding considerations. Maximum on-site emissions are the highest emissions that would occur on the project site from on-site sources, such as heavy construction equipment and architectural coatings, and exclude off-site emissions from sources such as construction worker vehicle trips and haul truck trips.

Class 32 CE Consistency Analysis
Class 32 Categorical Exemption Report 17
Table 13 Gregory Well Localized Construction Emissions
Maximum Daily Emissions (pounds/day)
VOC NOX CO SO2 PM10 PM2.5
Maximum On-site Emissions 3 24 25 <1 3 2
SCAQMD LST (for One-Acre
Site at 25 Meters in Source
Receptor Area 2)
N/A 57 562 N/A 4 2
Threshold Exceeded? N/A No No N/A No No
VOC = volatile organic compounds; NOx = nitrogen oxide; CO = carbon monoxide; SO2 = sulfur dioxide; PM10 = particulate matter with a diameter no more than 10 microns; PM2.5 = particulate matter with a diameter no more than 2.5 microns; SOx = sulfur oxide Notes: All emissions modeling was completed using CalEEMod. See Appendix D for modeling results. Some numbers may not add up precisely due to rounding considerations. Maximum on-site emissions are the highest emissions that would occur on the project site from on-site sources, such as heavy construction equipment and architectural coatings, and exclude off-site emissions from sources such as construction worker vehicle trips and haul truck trips.

Toxic Air Contaminants
TACs are defined by California law as air pollutants that may cause or contribute to an increase in mortality or an increase in serious illness, or which may pose a present or potential hazard to human health. Construction-related activities would result in temporary project-generated emissions of diesel particulate matter exhaust emissions from off-road, heavy-duty diesel equipment for site preparation, grading, building construction, and other construction activities.

Generation of diesel particulate matter from project construction would be short-term and would be a relatively small fraction of the total exposure period typically used for 30-year health risk calculations. Therefore, project construction would not expose sensitive receptors to substantial TAC concentrations.

CARB’s Air Quality and Land Use Handbook: A Community Health Perspective (2005) provides recommendations regarding the siting of new sensitive land uses near potential sources of air toxic emissions (e.g., freeways, distribution centers, rail yards, ports, refineries, chrome plating facilities, dry cleaners, and gasoline dispensing facilities). Groundwater wells are not considered land uses that generate substantial TAC emissions based on review of the air toxic sources listed in CARB’s guidelines. Because the project would not include substantial TAC sources, project operation would not expose off-site sensitive receptors to significant TAC emissions.

Other Emissions
The project would generate oil or diesel fuel odors during construction from equipment operations.

These odors would be limited to the temporary construction period and would dissipate rapidly with distance. With respect to odors generated by project operation, the SCAQMD’s CEQA Air Quality Handbook (1993) identifies land uses associated with odor complaints to be agricultural uses, wastewater treatment plants, chemical and food processing plants, composting, refineries, landfills, dairies, and fiberglass molding. Groundwater wells are not identified on this list. In addition, the project would be required to comply with SCAQMD Rule 402, which prohibits the discharge of air contaminants that would cause injury, detriment, nuisance, or annoyance to the public.

Conclusion
The proposed project would not result in significant air quality effects.

City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
18 Water Quality
Urban runoff can have a variety of deleterious effects. Oil and grease contain a number of hydrocarbon compounds, some of which are toxic to aquatic organisms at low concentrations.

Heavy metals such as lead, cadmium, and copper are the most common metals found in urban stormwater runoff. These metals can be toxic to aquatic organisms and have the potential to contaminate drinking water supplies. Nutrients from fertilizers, including nitrogen and phosphorous, can result in excessive or accelerated growth of vegetation or algae, resulting in oxygen depletion and additional impaired uses of water.

Both well sites occur in developed and landscaped areas within La Cienega Park. Topography of the project site is relatively flat, and precipitation runs off the project site in the form of sheet flow across the surface. Stormwater runoff from the Le Doux Well site currently enters storm drains on Le Doux Road and flows to existing City drainage facilities. Stormwater runoff from the Gregory Well site currently enters storm drains on Gregory Way and flows to existing City drainage facilities.

During construction of the proposed project, ground-disturbing activities and the use of heavy equipment and machinery would introduce the potential for water quality degradation to occur as a result of erosion/sedimentation, or the accidental leak or release of hazardous materials such as vehicle fuels and lubricants. This could occur as a result of the runoff of loose soils or the mobilization of released construction materials to local storm drains that eventually merge with downstream waters.

Because the project site is less than one acre and would not be subject to the NPDES Construction General Permit, the project would be required to implement stormwater control measures during construction as required by BHMC Section 9-4-507(C) to achieve compliance with the County of Los Angeles Municipal Separate Storm Sewer System (MS4) permit, to which the City is a permittee.

Measures would include effective spills/leaks prevention and response, equipment and vehicle cleaning practices, and outdoor liquid storage practices.

The project site is in close proximity to several known hazardous waste sites, including an open Site Cleanup Program site regulated by the State Water Resources Control Board (SWRCB) located approximately 210 feet southeast of the Le Doux Well site, an open Leaking Underground Storage Tank (LUST) clean-up site located approximately 215 feet southeast of the Le Doux Well site, and a closed LUST clean-up site located approximately 270 feet east of the Le Doux Well site. The project site is also within the boundaries of the South Salt Lake and Beverly Hills oil/gas fields and within

0.25 mile of three oil and gas wells, which may have resulted in the release of hazardous materials into the surrounding groundwater. Known shallow groundwater impacts are present in the vicinity of the project site. If shallow groundwater is encountered during construction activities and/or if dewatering is necessary during construction activities, the groundwater encountered may be impacted by off-site contamination. However, the project includes preparation and implementation of a SGMP, which would avoid adverse water quality impacts associated with discharge of contaminated groundwater during construction. In addition, prior to operation, the project would be required by the SWRCB to complete a Drinking Water Source Assessment to address the potential for the groundwater VOC plume in the vicinity of the well sites to impact groundwater that will be pumped by the proposed extraction wells, and if adverse impacts to water quality are identified, additional design measures or engineering controls would be incorporated into the proposed project (Appendix E).
“Waste” groundwater produced during well development, testing, and maintenance activities would be discharged to existing City storm drains on Le Doux Road and Gregory Way pursuant to the City’s Class 32 CE Consistency Analysis
Class 32 Categorical Exemption Report 19
NPDES permit. These discharges would be required to comply with the water quality standards outlined in this permit and thus would not result in a significant effect to water quality.

There are no streams or rivers on or near the project site, and the project would not alter the course of any stream or river such that substantial erosion or siltation would occur on- or off-site (Appendix B). The introduction of new above-ground infrastructure to the project site could potentially alter site-specific drainage patterns by diverting surface flows around the new structures. The well building around each well would be approximately 420 square feet, or 0.01 acre, and thus would not substantially alter existing drainage patterns through the introduction of impervious surfaces such that substantial erosion or siltation would occur on- or off-site.

Conclusion
The proposed project would not result in significant water quality effects.

3.5 Utilities and Public Services
15332(e) The site can be adequately served by all required utilities and public services.

The project site is located in a highly urban area served by existing public utilities and services. The proposed project would not result in a substantial increase in demand for services or utilities because the proposed project would not require new or expanded utility or service systems. The proposed project would not increase the amount of sewage or solid waste produced at the project site or La Cienega Park. The project does not include natural gas connections, and the project would be served by existing electricity and telecommunications service providers. In addition, the project would not directly or indirectly induce population growth and therefore would not increase demand for public services, such as fire protection, police protection, schools, or libraries. Furthermore, the project would not reduce the recreational capacity of La Cienega Park such that additional demand for parks would result. Thus, the project meets this criterion for exemption.

City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
20 4 Class 32 CE Exceptions Analysis
The following sections evaluate whether any of the exceptions to the use of a Class 32 CE pursuant to CEQA Guidelines Section 15300.2 are applicable to the proposed project.

4.1 Location
15300.2(a) Location. Classes 3, 4, 5, 6, and 11 are qualified by consideration of where the project is to be located – a project that is ordinarily insignificant in its impact on the environment may in a particularly sensitive environment be significant.

Therefore, these classes are considered to apply in all instances, except where the project may impact an environmental resource of hazardous or critical concern where designated, precisely mapped, and officially adopted pursuant to law by federal, State, or local agencies.

The use of a Class 3, 4, 5, 6, or 11 CE is not proposed for the project. Therefore, this exception does not apply.

4.2 Cumulative Impacts
15300.2(b) Cumulative Impact. All exemptions for these classes are inapplicable when the cumulative impact of successive projects of the same type in the same place, over time is significant.

The proposed project involves construction of two groundwater wells on approximately 0.57 acre of land that is currently developed with a City maintenance yard and a park. There are currently two planned and pending projects within one mile of the project site that have the potential to be constructed during the same time period as the proposed project, including:
▪ La Cienega Tennis Center Mainline Irrigation Replacement Project, which would include upgrades and site improvements such as irrigation and mainline replacement. It would be located on the same parcel as the Gregory Well site (City of Beverly Hills 2021). The timing for implementation of this project is uncertain at this time; and ▪ Purple (D Line) Extension Transit Project, which would include construction of the Wilshire/La Cienega station on the northeast corner of Wilshire Boulevard and La Cienega Boulevard, approximately 0.25 mile northeast of the project site (Los Angeles County Metropolitan Transportation Authority [Metro] 2023). This project is currently under construction and slated to open for service in 2024.

Cumulative impacts during construction are generally considered in analyses of air quality, noise, and transportation. Given the small scale of the proposed project and the existing, built-out nature of the project site vicinity, the project’s contribution to potential cumulative impacts in these and other issue areas, such as biological resources, cultural resources, and hazardous materials, would be nominal. Construction of the two groundwater wells would occur for a total of approximately 13 months, and the wells would not be constructed simultaneously. The potential construction-related cumulative impacts to air quality and noise would be temporary and would not result in permanent adverse impacts. In Appendix D of the SCAQMD’s White Paper on Potential Control Strategies to Class 32 CE Exceptions Analysis
Class 32 Categorical Exemption Report 21
Address Cumulative Impacts from Air Pollution, SCAQMD recommends that project-specific air quality impacts be used to determine if a project’s contribution to cumulative air quality impacts would be significant (SCAQMD 2003). As discussed in Section 3.4, Significant Traffic, Noise, Air Quality, and Water Quality Impacts, project construction emissions would not exceed SCAQMD’s construction air quality thresholds, and the project is consistent with the AQMP. In accordance with SCAQMD guidance on determining cumulative impacts, the project’s contribution to cumulative regional long-term air quality impacts would not be cumulatively considerable. In addition, as discussed in Section 3.4, Significant Traffic, Noise, Air Quality, and Water Quality Impacts, project-related construction noise would not conflict with allowable construction hours or exceed the noise level limits for after-hours construction activities as established in the City’s Noise Ordinance.

Furthermore, similar to the proposed project, planned and pending projects would be required to adhere to the City’s Noise Ordinance, which would ensure potential cumulative impacts related to construction noise would not be significant. Furthermore, as discussed in Section 3.4, Significant Traffic, Noise, Air Quality, and Water Quality Impacts, the project would generate minimal construction traffic and would not require temporary lane or road closures. As such, the project would have low potential to combine with cumulative projects to result in significant cumulative construction traffic impacts.

The proposed groundwater wells would be unmanned upon the completion of construction activities. One operator would travel to the two wells approximately once a week for routine maintenance and inspection activities. More intensive maintenance activities to replace certain well components would occur once every approximately five to ten years. As such, project operational activities would result in generally minimal alterations to the environmental baseline condition.

Furthermore, the project is in furtherance of meeting the City’s water supply forecast outlined in its UWMP. The UWMP addresses cumulative water supply issues in the city and provides a framework for long term water planning and to inform the public of the supplier’s plans to ensure adequate water supplies for cumulative demands (City of Beverly Hills 2016).

Therefore, no significant cumulative impacts would result from successive projects in the same place over time, and this exception to a CE does not apply to the proposed project.

4.3 Significant Effect
15300.2(c) Significant Effect. A categorical exemption shall not be used for an activity where there is a reasonable possibility that the activity will have a significant effect on the environment due to unusual circumstances.

The circumstances of the proposed project, which would result in the construction and operation of two groundwater wells, are not considered unusual because: (1) the project site is in a highly urbanized area already developed with a City maintenance yard and park; (2) the proposed project would be consistent with existing land uses in the surrounding area; and (3) the project would support meeting the supply forecasts outlined in City’s UWMP (2016) for existing and planned growth via groundwater extraction from the Coastal Plain of Los Angeles-Hollywood Basin, a verylow priority basin (California Department of Water Resources 2023). Furthermore, as described above in Section 3.3 through 3.5, the proposed project would not result in significant effects related to special-status species, traffic, noise, air quality, water quality, utilities, or public services.

Therefore, no unusual circumstances exist and this exception to a CE would not apply to the proposed project.

City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
22 4.4 Scenic Highways
15300.2(d) Scenic Highways. A categorical exemption shall not be used for a project which may result in damage to scenic resources, including but not limited to, trees, historic buildings, rock outcroppings, or similar resources, within a highway officially designated as a state scenic highway. This does not apply to improvements which are required as mitigation by an adopted negative declaration or certified EIR.

There are no officially designated state scenic highways in Beverly Hills. The nearest designated state scenic highway is State Route (SR) 27, also known as the Topanga Canyon State Scenic Highway, which is located approximately 12 miles west of the project site (California Department of Transportation 2018). Due to distance and intervening structures, the project site is not visible from SR 27. Therefore, the proposed project would not damage scenic resources within a highway officially designated as a state scenic highway. This exception to a CE would not apply to the proposed project.

4.5 Hazardous Waste Sites
15300.2(e) Hazardous Waste Sites. A categorical exemption shall not be used for a project located on a site which is included on any list compiled pursuant to Section 65962.5 of the Government Code.

According to a search of the Department of Toxic Substances Control EnviroStor database, the SWRCB GeoTracker database, the SWRCB’s “active” Cease and Desist Orders and Cleanup and Abatement Orders List, or the SWRCB solid waste disposal sites conducted in August 2023, the project site is not located on any list compiled pursuant to Section 65962.5 of the Government Code (Appendix E). This exception to a CE would not apply to the proposed project.

4.6 Historical Resources
15300.2(f) Historical Resources. A categorical exemption shall not be used for a project which may cause a substantial adverse change in the significance of a historical resource.

As described in the Cultural Resources Technical Report (Appendix F), the nearest historical resource is Water Treatment Building No. 1, located approximately 180 feet southwest of the project site.

Water Treatment Building No. 1, located at 325 (333) South La Cienega Boulevard was built in 1927 and is designed in the Spanish Colonial Revival style. The Water Treatment Building No. 1 was evaluated as part of the 1985-1986 Beverly Hills Historic Resources survey and was assigned a status code of “3”, meaning it appeared to be eligible for inclusion in the National Register of Historic Places and/or California Register of Historical Resources. The Water Treatment Building No. 1 is also eligible for the National Register of Historic Places as an individual property through survey evaluation. In 2013, the City of Beverly Hills submitted a Cultural Heritage Commission Report to nominate the Water Treatment Building No. 1 for inclusion into the Local Register of Historic Places due to its association with the early history of Beverly Hills, its architectural style, and its retention of integrity as outlined by local criteria 10-3-3212 (Appendix F). The proposed project does not include any changes to Water Treatment Building No. 1 and would not result in the physical Class 32 CE Exceptions Analysis
Class 32 Categorical Exemption Report 23
demolition, destruction, relocation, or alteration of the historical resource such that its significance would be materially impaired.

Construction of the proposed Le Doux Well and its accessory building, which would be located 180 feet south of the Water Treatment Building No. 1, would introduce a new visual feature in the vicinity of this historical resource. However, the visual impact of the Le Doux Well and its accessory building on the historic setting would be reduced by its location, setting, scale, and design. The proposed new building on the Le Doux Well would be near Water Treatment Building No. 1’s secondary elevation (i.e., the side of the building as opposed to the front of the building) and would be limited to a single, one-story building. The proposed building would be inset from the street and would be partially shielded from the public right-of-way by the extant mature trees along Le Doux Road and West Olympic Boulevard. The building would be basic in design with simple concrete masonry construction, side-gable roof, and limited openings, and would be devoid of any ornamentation. Furthermore, the proposed new accessory building would be constructed in such a manner that, if removed in the future, it would not alter the essential form and integrity of the adjacent historical resource, consistent with the Secretary of the Interior’s Standards for the Treatment of Historic Properties with Guidelines for Preserving, Rehabilitating, Restoring, and Reconstructing Historic Buildings (National Park Service 2017). Furthermore, construction of the Gregory Well at the eastern end of La Cienega Park, across La Cienega Boulevard, and largely within the existing maintenance yard also would not impair important views or visual relationships of the Water Treatment Building No. 1 (Appendix F). Therefore, the project would not result in a substantial adverse change in the significance of a historical resource, and this exception to a CE does not apply to the proposed project.

City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
24 5 Summary
Based on this analysis, the proposed project meets all criteria for a Class 32 Categorical Exemption pursuant to Section 15332 of the State CEQA Guidelines and is exempt from CEQA pursuant to CEQA Guidelines Article 19.

References
Class 32 Categorical Exemption Report 25
6 References
Beverly Hills, City of. 2005. 2005. City of Beverly Hills General Plan Update Technical Background Report. https://www.beverlyhills.org/cbhfiles/storage/files/filebank/2569--GP-TBR-Chp-2-

1.pdf (accessed August 2023).
______. 2009. Approved Heavy Haul Routes - City of Beverly Hills, California. https://beverlyhills.org/cbhfiles/storage/files/filebank/4946--HeavyHaul_Routes.pdf (accessed August 2023).
______. 2010a. City of Beverly Hills General Plan Land Use Element. https://www.beverlyhills.org/cbhfiles/storage/files/97695053895997723/10278-- 2_LandUse01122010-mapupdate.pdf (accessed August 2023). ______. 2010b.City of Beverly Hills General Plan Open Space Element. https://www.beverlyhills.org/cbhfiles/storage/files/filebank/10282-- 5_OpenSpace%2001122010.pdf (accessed August 2023).
______. 2010c. City of Beverly Hills General Plan Noise Element. https://www.beverlyhills.org/cbhfiles/storage/files/filebank/10284-- 8_Noise%2001122010.pdf (accessed March 2023).
______. 2016. 2015 Urban Water Management Plan.
https://www.beverlyhills.org/cbhfiles/storage/files/115079846772769831/FinalCityofBeverl yHills2015UWMPReport.pdf (accessed August 2023).
______. 2019. RESOLUTION NO. 1901.
https://www.beverlyhills.org/cbhfiles/storage/files/4460592531431926648/RFP-20-270-2- ATTACHMENTCCITY'SCEQATHRESHOLDS.pdf (accessed August 2023). ______. 2021a. Zoning Map - City of Beverly Hills.
https://www.beverlyhills.org/cbhfiles/storage/files/85417549113430995/Zoning_11_17_Fi nal20211005.pdf (accessed August 2023).
______. 2021b. CIP No: 00487 LA CIENEGA TENNIS CENTER MAINLINE IRRIGATION REPLACEMENT. https://gis.beverlyhills.org/gisdocs/cip/currentfy/doc/cip_0487.pdf (accessed August 2023). ______. 2022. General Plan Land Use Designations - City of Beverly Hills. https://www.beverlyhills.org/cbhfiles/storage/files/1807037749744115284/Landuse_11x17 _20220125.pdf (accessed August 2023).

California Air Resources Board (CARB). 2005. Air Quality and Land Use Handbook: A Community Health Perspective. April 2005. http://www.aqmd.gov/docs/defaultsource/ceqa/handbook/california-air-resources-board-air-quality-and-land-use-handbook-acommunity-health-perspective.pdf (accessed August 2023).

California Department of Transportation. 2018. California State Scenic Highway System Map. https://caltrans.maps.arcgis.com/apps/webappviewer/index.html?id=465dfd3d807c46cc8e 8057116f1aacaa (accessed July 2023).

California Department of Water Resources. 2023. “SGMA Basin Prioritization Dashboard.” https://gis.water.ca.gov/app/bp-dashboard/final/ (accessed August 2023).

City of Beverly Hills
La Cienega Well Nos. 2 and 3 Project
26 Los Angeles County Metropolitan Transportation Authority (Metro). 2023. Purple (D Line) Extension Transit Project – Section 1. https://www.metro.net/projects/purple-section1/ (accessed August 2023).

National Park Service. 2017. Standards for the Treatment of Historic Properties with Guidelines for Preserving, Rehabilitating, Restoring & Reconstructing Historic Buildings. https://www.nps.gov/orgs/1739/upload/treatment-guidelines-2017-part1-preservationrehabilitation.pdf (accessed August 2023).

South Coast Air Quality Management District (SCAQMD). 1993. CEQA Air Quality Handbook. April 1993.
______. 2003. White Paper on Potential Control Strategies to Address Cumulative Impacts from Air Pollution Appendix D. Available at http://www.aqmd.gov/docs/defaultsource/Agendas/Environmental-Justice/cumulative-impacts-working-group/cumulativeimpacts-white-paper-appendix.pdf?sfvrsn=4 (accessed August 2023). ______. 2008. Final Localized Significance Threshold Methodology. July 2008. http://www.aqmd.gov/docs/default-source/ceqa/handbook/localized-significancethresholds/final-lst-methodology-document.pdf (accessed July 2023). ______. 2009. Appendix C – Mass Rate LST Look-up Tables. Last modified: October 21, 2009. http://www.aqmd.gov/docs/default-source/ceqa/handbook/localized-significancethresholds/appendix-c-mass-rate-lst-look-up-tables.pdf?sfvrsn=2 (accessed July 2023). ______. 2022. 2022 Air Quality Management Plan (AQMP). Adopted December 2, 2022. http://www.aqmd.gov/docs/default-source/clean-air-plans/air-quality-managementplans/2022-air-quality-management-plan/final-2022-aqmp/final-2022-aqmp.pdf?sfvrsn=16 (accessed July 2023).
______. 2023. SCAQMD Air Quality Significance Thresholds. Last modified: March 2023. https://www.aqmd.gov/docs/default-source/ceqa/handbook/south-coast-aqmd-air-qualitysignificance-thresholds.pdf?sfvrsn=25 (accessed July 2023).

Southern California Association of Governments (SCAG). 2020. Connect SoCal: The 2020-2045 Regional Transportation Plan/Sustainable Communities Strategy of the Southern California Association of Governments. Adopted May 7, 2020. https://scag.ca.gov/read-plan-adoptedfinal-plan (accessed July 2023).

Appendix A
Preliminary Site Layouts
User: ERICK ALMALEL Plot Date: 10/27/2023 2:58 PM SHEET KEYNOTES A. IF CURB, GUTTER, SIDEWALK, AND/OR PARKING METERS ARE DAMAGED DURING CONSTRUCTION, CONTRACTOR SHALL REPLACE OR REPAIR TO CITY OF BEVERLY HILLS STANDARD AT NO ADDITIONAL COST TO OWNER. B. DEMO EXIST CLF WITHIN DEMO AREA TO NEAREST FENCE POST. PROTECT FENCE NOT WITHIN DEMO AREA. C. PARKING OF ONLY COMPANY-OWNED CONSTRUCTION VEHICLES REQUIRED FOR CONSTRUCTION ARE PERMITTED AT THE CONSTRUCTION STORAGE AREA. D. PROTECT EXISTING ABOVE-GRADE AND BELOW-GRADE UTILITIES IN STORAGE AREAS. IMPROVE AREA AS NEEDED AND RESTORE TO EXISTING CONDITIONS OR BETTER UPON COMPLETION OF CONSTRUCTION.

DATE REVISION BY

DATEDATEDATE

SCALE AS SHOWN

DRAWNDESIGNED
F.B. NO.

CHECKED

PAGE TO

APPROVED

SUBMITTED
PROJECT:

DATEDATE
00 25mm
SCALES
1"

IF THIS BAR IS NOT

DIMENSION SHOWN,

ADJUST SCALES
ACCORDINGLY.

PRELIMINARY

NOT FOR

CONSTRUCTION NOT FOR CONSTRUCTION

THIS DOCUMENT IS AN INTERIM DOCUMENT AND NOT SUITABLE FOR CONSTRUCTION. AS AN INTERIM DOCUMENT, IT MAY CONTAIN DATA THAT

IS POTENTIALLY INACCURATE OR INCOMPLETE AND IS NOT TO BE RELIED UPON WITHOUT THE EXPRESS WRITTEN CONSENT OF THE PREPARER.

PRELIMINARY DESIGN PHASE
60% SUBMITTAL
pw:\\kjce-pw.bentley.com:kjce-pw\Documents\Clients\Beverly Hills, City of\Projects\La Cienega Well #2 and #3 Design_2344501.00\10-Design\10.06-Drawings\Civil 110'

DEMOLISH TREES, CHAIN LINK FENCE, ANDBERM UP TO THE BACK OF THE SIDEWALK ONLE DOUX ROAD FOR WELL DRILLING

EQUIPMENT AND FUTURE WELL PAD

1. EXTENTS OF DEMOLITION AND DIMENSIONS TO BE FIELD VERIFIED

AND CONFIRMED BY CONTRACTOR WITH ENGINEER NOT TO

EXCEED THE NECESSARY AREA REQUIRED FOR WELL DRILLING
ACTIVITIES.

2. RESTORE SITE TO ORIGINAL GRADES, SLOPES, AND LANDSCAPING AFTER CONSTRUCTION.

LE DOUX RD

OLYMPIC BLVD

DEMO TREES

DEMO TREES DEMO TREE DEMO TREES

DEMO TREE

DEMO TREE
-
1 LE DOUX RD DEMOLITION AREA
SCALE: NTS

GENERAL SHEET NOTES
A
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CITY OF BEVERLY HILLS, CALIFORNIA
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1. EXTENTS OF DEMOLITION TO BE FIELD VERIFIED AND CONFIRMED

BY CONTRACTOR NOT TO EXCEED THE NECESSARY AREA REQUIRED FOR WELL DRILLING ACTIVITIES.

DEMOLISH TREES

PROTECT CMU

WALL IN PLACE

PROTECT CMU

WALL IN PLACE

REMOVE HEDGE, CMU

WALL, AND FOOTING

REMOVE STREET

METER AND FOOTING

REMOVE STREET
SIGN
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REMOVE TREES

REMOVE TREE

GREGORY WAY
GALE DR SHEET KEYNOTES A. IF CURB, GUTTER, SIDEWALK, AND OR LANDSCAPING IS DAMAGED

DURING CONSTRUCTION, CONTRACTOR SHALL REPLACE ORREPAIR TO CITY OF BEVERLY HILLS STANDARD AT NO ADDITIONAL COST TO OWNER.

B. DEMO SOUTH BATTING CAGE TO EXTENTS NECESSARY FOR WELL DRILLING ACTIVITIES. SALVAGE CAGE EQUIPMENT AND RESTOREBATTING CAGE IN NEW LOCATION TO EXISTING CONDITIONS FOLLOWING CONSTRUCTION.

C. PROTECT SIREN POLE AND LIGHT POLE WITHIN CONCRETE
STORAGE BINS IN PLACE.
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48'
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CITY OF BEVERLY HILLS, CALIFORNIA
© 2023 Microsoft Corporation © 2023 Maxar ©CNES (2023) Distribution Airbus DS 80'±
User: ERICK ALMALEL Plot Date: 10/27/2023 3:04 PM

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IS POTENTIALLY INACCURATE OR INCOMPLETE AND IS NOT TO BE RELIED UPON WITHOUT THE EXPRESS WRITTEN CONSENT OF THE PREPARER.

GREGORY WAY

GALE DR

SHEET KEYNOTES
A. BATTING CAGE ENCLOSURE TO BE 15' INTERIOR CLEAR WIDTH X 70' X 13.5' BY BSN SPORTS OR EQUAL.

B. PARKING OF ONLY COMPANY-OWNED CONSTRUCTION VEHICLES

REQUIRED FOR CONSTRUCTION ARE PERMITTED AT THE
CONSTRUCTION STORAGE AREA.

C. CONTRACTOR TO PROTECT EXISTING ABOVE-GRADE AND
BELOW-GRADE UTILITIES IN STORAGE AREAS. CONTRACTOR TO

IMPROVE AREA AS NEEDED AND RESTORE TO EXISTING
CONDITIONS OR BETTER UPON COMPLETION OF CONSTRUCTION.

D. BATTING CAGE ENCLOSURE TO ABUT EXISITNG DUGOUT FENCE.E. LOCATE CHAIN LINK FENCE 6" CLR FROM EXTENTS OF CONTRACTOR STAGING AREA.

CHAIN LINK

TIE INTO

EXIST CLF

TIE INTO

EXIST CLF
PLAN
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PROTECT LIGHT POLE

PROTECT SIREN POLE

B C CONTRACTOR

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CITY OF BEVERLY HILLS, CALIFORNIA
User: STEVE HUGHES Plot Date: 9/20/2023 10:34 AM SHEET KEYNOTES A. TEXT FOR KEYNOTE A B. TEXT FOR KEYNOTE B C. TEXT FOR KEYNOTE C D. TEXT FOR KEYNOTE D 1. TEXT FOR NOTE 1 2. TEXT FOR NOTE 2 3. TEXT FOR NOTE 3 4. TEXT FOR NOTE 4 GENERAL SHEET NOTES

KEY PLAN

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PRELIMINARY

NOT FOR

CONSTRUCTION NOT FOR CONSTRUCTION

THIS DOCUMENT IS AN INTERIM DOCUMENT AND NOT SUITABLE FOR CONSTRUCTION. AS AN INTERIM DOCUMENT, IT MAY CONTAIN DATA THAT

IS POTENTIALLY INACCURATE OR INCOMPLETE AND IS NOT TO BE RELIED UPON WITHOUT THE EXPRESS WRITTEN CONSENT OF THE PREPARER.

PRELIMINARY DESIGN PHASE
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LE DOUX ROAD

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CONNECTION PIPELINE
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Appendix B
Environmental Due Diligence Analysis
Rincon Consultants, Inc.
2 5 0 E a s t 1 s t S t r e e t , S u i t e 1 4 0 0
Los Angeles, California 90012
213 7 8 8 4 8 4 2
i n f o @ r i n c o n c o n s u l t a n t s . c o m
w w w . r i n c o n c o n s u l t a n t s . c o m
E n v i r o n m e n t a l S c i e n t i s t s P l a n n e r s E n g i n e e r s October 3, 2023
Project No: 22-13335
David Ferguson, Vice President
Kennedy Jenks
300 North Lake Avenue, Suite 1020
Pasadena, California 91101
Via email: [email protected]
Subject: Environmental Due Diligence Analysis for the La Cienega Wells Nos. 2 and 3 Project, Beverly Hills, Los Angeles County, California
Dear Mr. Ferguson:

Rincon Consultants, Inc. (Rincon) is pleased to submit the following Environmental Due Diligence Analysis for the City of Beverly Hills’ (City) La Cienega Wells Nos. 2 and 3 Project (proposed project). The proposed project consists of construction and operation of two groundwater wells on two noncontiguous sites within La Cienega Park in Beverly Hills, Los Angeles County. Construction of the two wells would require site preparation, minimal grading, well drilling and constant rate testing during daytime hours, construction of an approximately 420-square-foot concrete masonry unit building around each well, installation of water pipelines that extend from the proposed wells to an existing raw water transmission main within La Cienega Boulevard, and site restoration upon completion of construction. Both wells would be equipped with vertical turbine well pumps with aboveground motors with variable frequency drives, and both buildings would be equipped with heating, ventilation, and air conditioning equipment for the electrical rooms. No nighttime construction activities are proposed.

Construction staging and materials laydown would occur adjacent to each well site. The two proposed groundwater well sites include the following:
▪ Le Doux Well Site: The Le Doux Well site consists of the southwestern corner of Frank Fenton Field within the portion of La Cienega Park located on Assessor's Identification Number (AIN) 4333-026- 900. The Le Doux site would be accessed via two approximately 15-foot-wide access ramps from Le Doux Road. The total construction impact area (inclusive of the permanent well footprint and the construction staging/laydown area) for Le Doux would encompass approximately 8,800 square feet (0.20 acre). Approximately 12 trees would be removed to accommodate construction site access, and the existing berm along the western side of the parcel would be removed during construction and partially replaced.
▪ Gregory Well Site: The Gregory Well site consists of the existing maintenance yard within the portion of La Cienega Park located on AIN 4333-031-900. The Gregory site is located at the eastern end of La Cienega Park and is bordered by Gregory Way to the north and single-family residences to the south/east. The total construction impact area (inclusive of the permanent well footprint and the construction staging/ laydown area) for the Gregory site would encompass approximately 16,100 square feet (0.37 acre), which would include portions of the existing maintenance yard and the La Cienega Park baseball field. The well itself would be installed within the existing maintenance yard, and impacts to the baseball field would be limited to temporary construction staging/laydown.

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The Gregory Well site would be accessed primarily via the existing maintenance yard gate with secondary access provided from the north on Gregory Way and/or at other locations within the maintenance yard (necessitating temporary removal of existing fencing/materials). One existing light pole associated with the baseball field may need to be removed and relocated in the immediate vicinity to accommodate the proposed well.

As part of the project design and pursuant to local and state regulatory requirements, the City would require the following best management practices to be completed:
▪ Completion of nesting bird pre-construction surveys and nest avoidance measures if construction commences during the nesting season (typically February 1 through August 31) to achieve compliance with the Migratory Bird Treaty Act (MBTA) and California Fish and Game Code (CFGC) ▪ Completion of a pre-construction bat survey two weeks prior to the commencement of project construction activities. If construction activities would not commence until the next active season, (March to October), the City would require a focused bat habitat assessment to be conducted prior to November 1, 2023 to confirm whether on-site trees and structures provide suitable bat roosting habitat and are being actively used by roosting bats. If roosting bats are observed outside the maternity season (April to September), a 100-foot avoidance buffer would be established. If day roosts are observed, the City would temporarily pause work and prohibit tree removal in the buffer area until the bat leaves on its own. If pausing work is not feasible, a qualified biologist would be retained by the City to determine the bat species and best method of encouraging the bat to leave.

If a maternity roost is observed, a 300-foot avoidance buffer would be established until the pups have weaned. Once the roost is inactive, exclusionary devices would be installed to prevent future roosting, if necessary for future work/tree removal. If maternity roosts of special-status bat species are observed on-site, the City would coordinate with the California Department of Fish and Wildlife to identify additional avoidance and minimization measures. ▪ Preparation of a Soil and Groundwater Management Plan (SGMP) prior to the commencement of construction. The SGMP would address on-site handling and management of impacted soils, groundwater, or other impacted wastes, and reduce hazards to construction workers and off-site receptors during construction. The SGMP would establish remedial measures and/or soil and groundwater management practices to ensure construction worker safety, the health of future workers and visitors, and prevent the off-site migration of contaminants from the site. In addition, if odorous or visually stained soils or groundwater, other indications of piping or equipment (including hydrocarbon piping or equipment), or debris are encountered during ground-disturbing activities, work in the immediate area would be halted and a qualified consultant would be contacted immediately to evaluate the site conditions.

Both proposed well sites have a General Plan land use designation of “Parks (Unzoned)”1 and are zoned Open Space by the City (City of Beverly Hills 2023a). See Attachment 1 for preliminary layouts for each proposed well site.
1 The “Unzoned” category in the “Parks (Unzoned)” is not a zoning classification but rather includes the City’s total parkland acreage (76.7 acres) as well as approximately 1.2 acres of additional “unzoned” land in the city (City of Beverly Hills 2005).

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Environmental Due Diligence Analysis
Rincon conducted an environmental due diligence analysis for the proposed project, which consisted of identification of potential biological resources constraints and permitting needs, an evaluation of potential California Environmental Quality Act (CEQA) pathways, and potential land use permitting requirements. The following impact analysis addresses potential impacts from construction and operation of the two groundwater wells and associated pipelines.

Biological Resources Constraints
Rincon conducted a biological literature review and desktop analysis of the proposed well sites. The analysis included a review of the following databases and literature sources to provide site context and physical characteristics, as well as identify potential special-status species that may occur:
▪ United States Fish and Wildlife Service (USFWS; 2023a) Inventory for Planning and Consultation ▪ California Department of Fish and Wildlife (CDFW; 2023) California Natural Diversity Database (CNDDB)
▪ California Native Plant Society (CNPS; 2023) online Inventory of Rare Endangered Vascular Plants of California.

An eleven-quadrangle search (i.e., United States Geological Survey [USGS] 7.5-minute quadrangles) was utilized for both the CNDDB and CNPS queries to establish a list of special-status species with potential to occur within or adjacent to the proposed well sites. An eleven-quadrangle search was utilized because the proposed well sites are located in separate, adjacent quadrangles. The Le Doux site is located within the Beverly Hills quadrangle, while the Gregory Well site is located within the Hollywood quadrangle. The USFWS (2023b) National Wetlands Inventory Wetlands Mapper and the USGS (2023) National Hydrography Dataset were utilized to determine presence of wetland and/or water resources in or near the proposed well sites. The USFWS Critical Habitat Portal was also reviewed to evaluate presence of federally designated critical habitat in the vicinity of the proposed well sites (USFWS 2023c).

The results of these queries were used to evaluate whether any special-status species, critical habitat, or jurisdictional waters have the potential to occur within or adjacent to the proposed well sites. This desktop analysis also used aerial photographs and imagery from Google Earth Pro to support this assessment. Conditions were not evaluated in the field.

Both well sites occur in developed or landscaped areas within or adjacent to La Cienega Park, which is a public park. The proposed well sites are surrounded by public roadways, residential properties, and commercial development. Landscaped areas consist primarily of ornamental trees, including jacaranda (Jacaranda mimosifolia), magnolia (Magnolia grandiflora), and pepper trees (Schinus molle), with ornamental shrubs and turf or other non-native grasses also present.

Special-Status Species
The literature review indicated a total of 138 special-status species have been recorded in the search area, comprised of 77 plants and lichens, 18 invertebrates, one fish, four amphibians, eight reptiles, 16 birds, and 14 mammals. However, none of these species have the potential to occur in the vicinity of the proposed well sites due to prior development, a lack of suitable habitat, and ongoing human-related disturbance. Therefore, special-status species do not pose a constraint for the proposed project.

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Nesting Birds
Project construction activities at the proposed well sites have the potential to impact nesting birds, including raptors and common birds protected under the MBTA and CFGC, if an active nest is present within or adjacent to the proposed well sites. As noted previously, to comply with the MBTA and CFGC, the City would require nesting bird pre-construction surveys and nest avoidance measures to be completed if construction commences during the nesting season (typically February 1 through August 31). Therefore, nesting birds are not a constraints for the proposed project.

Sensitive Plant Communities, Jurisdictional Waters, and Agency Permitting No sensitive plant communities, jurisdictional waters, or riparian habitat occur within the proposed well sites or the surrounding areas (USFWS 2023b; USGS 2023). The nearest potentially jurisdictional feature is located approximately one mile east of the proposed well sites. Therefore, jurisdictional waters are not a constraint for the proposed project, and no resource agency permitting is anticipated to be required.

Roosting Bats
CEQA requires consideration of impacts to native wildlife nursery sites, including bat maternity roost locations. Landscape trees and manmade structures near the proposed well sites may provide suitable roosting habitat for common bat species, such as Mexican free tailed bats (Tadarida brasiliensis) and big brown bats (Eptesicus fuscus). However, any roosting bats in the vicinity of the proposed well sites are likely highly tolerant of existing noise and other human activity associated with the public park and adjacent roadways. The additional noise generated by project construction would not represent a significant new noise source, and impacts would be temporary in nature. In addition, long-term noise levels generated by project operation are expected to be minimal given high existing noise levels and the location of the pump motors within enclosed buildings. Furthermore, as noted previously, the City would require implementation of avoidance and minimization measures to be protective of roosting bats during project construction. Therefore, roosting bats are not a constraint for the proposed project.

Protected Trees
Beverly Hills Municipal Code Section 5-6.1001 states, “it is illegal for parties who are not official representatives or agents of the City of Beverly Hills to prune, remove, make attachment to, or otherwise damage a City street, park or protected tree.” Protected trees include heritage trees with a diameter at breast height (DBH) of 48 inches or more, native trees with a DBH of 24 inches or more, or urban groves with 50 or more trees. Based on a review of Google Earth Pro, no protected trees are expected to occur within the proposed well sites. The Le Doux site mostly contains blue jacarandas (Jacaranda mimosifolia) and one unknown fig species (Ficus sp.) in the northwestern corner of the site, both of which are considered unprotected. Additionally, the project is being proposed by the City, and any project-related tree removals would be implemented by agents of the City. As a result, the Beverly Hills Municipal Code provisions for protected trees would not apply to the proposed project.

Critical Habitat
The proposed well sites and surrounding area do not contain federally designated critical habitat for threatened or endangered plant or wildlife species. The closest federally designated critical habitat

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occurs over eight miles west of the proposed well locations (SFWS 2023c); therefore, critical habitat is not a constraint for the proposed project.

Habitat Conservation Plans/Natural Conservation Community Plans Pursuant to CEQA, the project would have a significant effect on biological resources if it would conflict with the provisions of an adopted Habitat Conservation Plan (HCP), Natural Conservation Community Plan (NCCP), or other approved local, regional, or state habitat conservation plan. The proposed well sites and surrounding area are not subject to an adopted HCP, NCCP, or other approved local, regional, or state conservation plan; therefore, HCPs/NCCPs are not a constraint for the proposed project.

Land Use Constraints
The proposed well sites are located on parcels with a General Plan land use designation of “Parks (Unzoned)”2 and a zoning of Open Space (City of Beverly Hills 2023a). Beverly Hills Municipal Code (BHMC) Section 10-3-4000 does not contain specific zoning regulations for areas zoned as Open Space but instead refers to the requirements of the City's General Plan Open Space Element. Based on current design, the project is anticipated to be consistent with the applicable policies of the Open Space Element, including Policies OS 8.1, OS 8.7 and OS 9.7 (City of Beverly Hills 2023a).

The project would also be subject to BHMC Title 9, Chapter 4, Article 6 – Water Supply, including the requirements for obtaining groundwater use permits. Compliance with BHMC Title 8, Chapter 2 would be required due to construction activities on public property, and compliance with BHMC Title 8, Chapter 3 would be required for any project construction activities that encroach in streets, alleys, and other public property.

CEQA Options Analysis
Implementation of the project would require environmental review under CEQA prior to implementation. The City would be the lead agency under CEQA (Public Resources Code [PRC] Section 21067) and is responsible for complying with the requirements of CEQA. The CEQA document would also be required for any other state or local agency for which discretionary permits/approvals are required.

PRC Section 21080.31 provides a statutory exemption for certain well projects meeting specific criteria, one of which is that the water system must be designated by the State Water Resources Control Board (SWRCB) as “high risk” or “medium risk” in its drinking water needs assessment. The City’s drinking water system is designated as “Not At-Risk” by the SWRCB (SWRCB 2022). Therefore, the proposed project does not qualify for a statutory exemption under PRC 21080.31.

The proposed project is likely exempt from CEQA under a Class 32 Categorical Exemption (CEQA Guidelines Section 15332). The Class 32 category consists of projects characterized as in-fill development meeting the following conditions:
▪ The project is consistent with the applicable general plan designation and all applicable general plan policies as well as with applicable zoning designation and regulations 2 The “Unzoned” category in the “Parks (Unzoned)” is not a zoning classification but rather includes the City’s total parkland acreage (76.7 acres) as well as approximately 1.2 acres of additional “unzoned” land in the city (City of Beverly Hills 2005).

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▪ The proposed development occurs within city limits on a project site of no more than five acres substantially surrounded by urban uses
▪ The project site has no value as habitat for endangered, rare, or threatened species ▪ Approval of the project would not result in any significant effects relating to traffic, noise, air quality, or water quality
▪ The site can be adequately served by all required utilities and public services As indicated previously under Land Use Constraints, based on preliminary review, the project is consistent with the proposed well sites’ General Plan designations of “Parks (Unzoned)” and zoning of Open Space and is anticipated to be consistent with all applicable General Plan policies and zoning regulations. Although the two parcels on which the proposed well sites are located total approximately

16.88 acres in size, the two well sites themselves, including the construction and laydown areas, total approximately 0.57 acre, which is within the five-acre criterion. As noted previously under Biological Resources Constraints – Special-Status Species, the proposed well sites do not have value as habitat for endangered, rare, or threatened species. Given the nature of proposed project construction and operational activities, significant effects to traffic, noise, air quality, or water quality are not expected. In addition, based on current design, the proposed project would be adequately served by all required utilities and public services. To confirm these preliminary findings, Rincon recommends preparation of a Class 32 Categorical Exemption report that provides additional detail regarding the consistency of the proposed project with applicable General Plan policies and zoning regulations and evaluates the project’s expected traffic, noise, air quality, and water quality impacts.

The use of a Categorical Exemption is limited by the exceptions listed in CEQA Guidelines Section 15300.2, which indicate that projects determined to be categorically exempt from CEQA cannot 1) impact an environmental resource of hazardous or critical concern where designated, precisely mapped, and officially adopted pursuant to law by federal, state, or local agencies if a Class 3, 4, 5, 6, or 11 Categorical Exemption is used; 2) result in a significant cumulative impact; 3) result in a significant effect on the environment due to unusual circumstances; 4) result in damage to scenic resources within a designated state scenic highway; 5) be located on a hazardous waste site included on any list compiled pursuant to Section 65962.5 of the Government Code; and 6) cause a substantial adverse change in the significance of a historical resource.

Exception #1 is only applicable to Classes 3, 4, 5, 6, and 11. The project likely qualifies for use of a Class 32 Categorical Exemption; therefore, this exception does not apply. In addition, based on the nature of the proposed project, its temporary and short-term construction activities, and the low expected level of operational impacts, it is unlikely the project in combination with existing and planned development in the surrounding area would result in significant cumulative impacts (exception #2). Furthermore, the proposed well sites are not located within the vicinity of an officially designated state scenic highway (exception #4; California Department of Transportation 2018). The proposed well sites are also not located on a hazardous waste site included on any list compiled pursuant to Section 65962.5 of the Government Code (exception #5; California Department of Toxic Substance Control 2023 and SWRCB 2023).

Based on the Hazardous Materials and Wastes Technical Study prepared for the proposed project (Rincon 2023a), the two proposed well sites are in close proximity to several known hazardous waste sites, including an open Site Cleanup Program site regulated by the SWRCB located approximately 210 feet southeast of the Le Doux Well site, an open Leaking Underground Storage Tank (LUST) clean-up site

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located approximately 215 feet southeast of the Le Doux Well site, and a closed LUST clean-up site located approximately 270 feet east of the Le Doux Well site . The project site is also within the boundaries of the South Salt Lake and Beverly Hills oil/gas fields and within 0.25 mile of three oil and gas wells, which may have resulted in the release of hazardous materials into the surrounding groundwater.

Known shallow groundwater impacts are present in the vicinity of the project site. If shallow groundwater is encountered during construction activities and/or if dewatering is necessary during construction activities, the groundwater encountered may be impacted by off-site contamination.

However, as mentioned previously, the project includes preparation and implementation of an SGMP, which would avoid adverse water quality impacts associated with discharge of contaminated groundwater during construction. In addition, prior to operation, the project would be required by the State Water Resources Control Board to complete a Drinking Water Source Assessment to address the potential for the groundwater volatile organic compounds plume in the vicinity of the well sites to impact groundwater that will be pumped by the proposed extraction wells, and if adverse impacts to water quality are identified, additional design measures or engineering controls would be incorporated into the proposed project. Therefore, the presence of these hazardous waste sites in proximity to the proposed well sites does not constitute an unusual circumstance that would cause the proposed project to have a significant effect on the environment (exception #3).

The nearest City-designated historic resource is Water Treatment Plant No. 1 (currently occupied by the Fairbanks Center for Motion Picture Study), located at 325/333 South La Cienega Boulevard, approximately 200 feet north of the Le Doux Well site (City of Beverly Hills 2023b). The proposed project would not encroach on or directly affect this historic resource; however, construction of a concrete masonry unit building at the Le Doux Well site has the potential to alter the immediate surroundings of this historic resource, which could materially alter in an adverse manner those physical characteristics of the resource that account for its inclusion in the City’s Local Register of Historic Properties. A Cultural Resources Assessment (Rodriguez et al. 2023) was prepared for the project which found that the visual impact of the Le Doux Well and its accessory building on the historic setting on Water Treatment Building No. 1 would be reduced by its location, setting, scale, and design. The proposed new building on the Le Doux Well would be near Water Treatment Building No. 1’s secondary elevation (i.e., the side of the building as opposed to the front of the building) and would be limited to a single, one-story building. The proposed building would be inset from the street and would be partially shielded from the public right-of-way by the extant mature trees along Le Doux Road and West Olympic Boulevard. The building would be simple in design with a simple concrete masonry construction, side-gable roof, and limited openings, and would be devoid of any ornamentation. Furthermore, the proposed new accessory building would be constructed in such a manner that, if removed in the future, it would not alter the essential form and integrity of the adjacent historical resource, consistent with the Standards.

In addition, the Noise and Vibration Study prepared for the project found that construction vibration impacts at the Le Doux Well site would result in less than significant impacts to Water Treatment Plant No. 1 (Rincon 2023b). Therefore, the project would not have the potential result in a significant effect on the environment due to unusual circumstances (exception #3) and/or cause a substantial adverse change in the significance of a historical resource (exception #6).

Should the proposed project not meet all the conditions for a Class 32 Categorical Exemption or should any of the exceptions to a Categorical Exemption apply to the project, an Initial Study-(Mitigated) Negative Declaration (IS-[M]ND) would likely be the most appropriate level of CEQA documentation. In the event there is substantial evidence in the record that the project may have a significant impact on

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the environment, an Environmental Impact Report would be required pursuant to CEQA Guidelines Section 15064(a)(1).

If the City determines a Categorical Exemption is the appropriate level of CEQA documentation, preparation of a Class 32 Categorical Exemption report and Notice of Exemption (NOE) would require approximately two months. Upon review and approval of the Class 32 Categorical Exemption report and project approval by the City, the City would file the NOE with the Los Angeles County Clerk and State Clearinghouse. Once the NOE is filed, it will trigger a 35-day statute of limitations for challenging the City’s decision that the project is exempt from CEQA. If the NOE is not filed, the time period for challenging the action under CEQA is 180 days following the City’s approval of the project (CEQA Guidelines Section 15062[d]). No public review period is required as part of the environmental process for a project determined to be exempt from the requirements of CEQA.

If the City determines an IS-(M)ND is the appropriate level of CEQA documentation, preparation of an IS- (M)ND would require approximately four to six months. This time period is inclusive of City review periods; the required 30-day public review period for the Draft IS-(M)ND, Notice of Intent, and Notice of Completion; and preparation of the Final IS-(M)ND with a formal Responses to Comments, if desired.

Upon adoption of the Final IS-(M)ND and approval of the proposed project, the City would file a Notice of Determination (NOD) within five working days with the Los Angeles County Clerk and State Clearinghouse. Once the NOD is filed, it will trigger a 30-day statute of limitations for challenging the City’s CEQA findings (CEQA Guidelines Section 15075[g]). If the NOD is not filed in the time period for challenging the action under CEQA is 180 days following the City’s approval of the project (CEQA Guidelines Section 15112[c][5]).

Summary
In summary, no significant biological resources, cultural resources, or hazardous materials constraints are anticipated for the proposed project, and no resource permitting is expected to be required. The proposed project likely qualifies for use of a Class 32 Categorical Exemption from CEQA; however, Rincon recommends completion of a Class 32 Categorical Exemption report to confirm this approach.

We appreciate the opportunity to assist the City with this assignment. If you have questions about this analysis, please contact us.

Sincerely,
Rincon Consultants, Inc.

Annaliese Torres Jennifer Haddow, PhD
Senior Environmental Planner/Project Manager Principal Environmental Scientist Attachments
Attachment 1 Preliminary Maps of Proposed Well Sites

Page 9 ends

Page 10 ends

References
Beverly Hills, City of. 2005. City of Beverly Hills General Plan Update Technical Background Report. https://www.beverlyhills.org/cbhfiles/storage/files/filebank/2569--GP-TBR-Chp-2-1.pdf (accessed February 2023).
_____. 2023a. Virtual Beverly Hills. https://gis.beverlyhills.org/VBH/Main/ (accessed February 2023). _____. 2023b.Local Register of Historic Places.
https://www.beverlyhills.org/departments/communitydevelopment/planning/historicpreservati on/localregisterofhistoricproperties/ (accessed March 2023).

California Department of Fish and Wildlife. 2023. California Natural Diversity Database – Commercial version (version 6.22.0727). https://wildlife.ca.gov/Data/BIOS (accessed February 2023).

California Department of Toxic Substance Control. 2023. EnviroStor. https://www.envirostor.dtsc.ca.gov/public/map/?myaddress=la+cieniega%2C+ebverly+hills%2C +ca (accessed February 2023).

California Department of Transportation. 2018. California State Scenic Highway Viewer. https://caltrans.maps.arcgis.com/apps/webappviewer/index.html?id=465dfd3d807c46cc8e805 7116f1aacaa (accessed February 2023).

California Native Plant Society (CNPS). 2023. Inventory of Rare and Endangered Plants (online edition V9- 01 1.0). http://www.rareplants.cnps.org/ (accessed February 2023).

Google Earth Pro. 2023. Version 7.3.6.9345. Accessed February 2023.

Governor’s Office of Planning and Research (OPR). 2022. In-fill Development. https://opr.ca.gov/planning/land-use/infill-development/. Accessed February 2023.

Rincon Consultants, Inc. (Rincon). 2023a. Hazardous Materials and Wastes Technical Study for the La Cienega Well Nos. 2 and 3 Project.
_____. 2023b. Noise and Vibration Study for the La Cienega Well Nos. 2 and 3 Project.

Rodriguez, A., M. Vader, P. Gonzalez, J. Murphy, and R. Perzel. 2023 La Cienega Well Nos. 2 and 3 Project, Los Angeles County, California. Rincon Consultants Project No. 22-13335. Report on file at the South Central Coastal Information Center, California State University, Fullerton State Water Resources Control Board (SWRCB). 1997. SWRCB GeoTracker – Tosco – 76 Station #0981 (T0603700871).
https://geotracker.waterboards.ca.gov/profile_report?global_id=T0603700871&mytab=esidata &subcmd=edfsummarytable#esidata (accessed February 2023). _____. 2007. SWRCB GeoTracker – ARCO #1361 (Former) (T0603701103). https://geotracker.waterboards.ca.gov/profile_report?global_id=T0603701103&mytab=esidata &subcmd=edfsummarytable#esidata (accessed February 2023). _____. 2019. SWRCB GeoTracker – Former Allstar Cleaners (T10000012796). https://geotracker.waterboards.ca.gov/profile_report?global_id=T10000012796&mytab=esidat a&subcmd=edfsummarytable#esidata (accessed February 2023).

Page 11 ends

_____. 2022. Drinking Water Needs Assessment Dashboard. https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/2022.html (accessed March 2023)
_____. 2023. SWRCB GeoTracker.
https://geotracker.waterboards.ca.gov/map/?CMD=runreport&myaddress=la+cieniega (accessed February 2023).

United States Fish and Wildlife Service (USFWS). 2023a. Inventory for Planning and Consultation. https://ipac.ecosphere.fws.gov/ (accessed February 2023). _____. 2023b. National Wetlands Inventory. https://www.fws.gov/wetlands/data/mapper.html (accessed February 2023).
_____. 2023c. Critical Habitat for Threatened & Endangered Species Critical Habitat Viewer. http://fws.maps.arcgis.com/home/webmap/viewer.html?webmap=9d8de5e265ad4fe09893cf7 5b8dbfb77 (accessed February 2023).

United States Geological Survey (USGS). 2023. National Hydrography Dataset. https://www.usgs.gov/national-hydrography (accessed February 2023).

Attachment 1
Preliminary Maps of Proposed Well Sites
0 • Proposed Wellsite Sound Barrier
D Drillin Equipment c::::I Construction Site
c::::J Wel:I Pad c::::J Ingress/Egress
Figure 1
Le xWell
RCS Job No. 1,65-ILAS19 June 202'3
0 LEGEND
• Proposed Wellsite c::11 Construction Site
D Drilling Equipment c::::J Ingress/Egress
t::I Well Pad ;::- .=--1 Temporary Mud Cuttings Area
Sound Barrier RCS Job J:llo.165
-LAS19
Figure 2
Gregory Wei I
June 2023
Appendix C
Noise and Vibration Study
La Cienega Well Nos. 2 and 3 Project
Noise and Vibration Study
prepared for
Kennedy Jenks
300 North Lake Avenue, Suite 1020
Pasadena, California 91101
Contact: David Ferguson, Vice President
prepared by
Rincon Consultants, Inc.
250 East 1st Street, Suite 1400
Los Angeles, California 90012
September 2023
r RINCON CONSULTANTS, INC.

Environmental Scientists I Planners I Engineers
rinconconsultants.com
Table of Contents
Noise and Vibration Study i
Table of Contents
1 Project Description and Impact Summary......................................................................................3

1.1 Introduction ........................................................................................................................3

1.2 Project Summary.................................................................................................................3 2 Environmental and Regulatory Setting...........................................................................................9

2.1 Overview of Sound Measurement......................................................................................9

2.2 Overview of Vibration.......................................................................................................10

2.3 Sensitive Receptors...........................................................................................................10

2.4 Project Noise Setting.........................................................................................................11

2.5 Regulatory Setting.............................................................................................................16 3 Methodology and Significance Thresholds...................................................................................19

3.1 Construction Noise............................................................................................................19

3.2 Groundborne Vibration.....................................................................................................20

3.3 On-site Operational and Off-Site Traffic Noise Sources....................................................20

3.4 Significance Thresholds.....................................................................................................21 4 Impact Analysis.............................................................................................................................23 5 Conclusion.....................................................................................................................................31 6 References....................................................................................................................................32 Tables
Table 1 Summary of Impacts...........................................................................................................3 Table 2 Short-Term Noise Measurement Results..........................................................................12 Table 3 Long-Term Noise Measurement Results - Le Doux Well Site ...........................................13 Table 4 Long-Term Noise Measurement Results - Gregory Well Site ...........................................14 Table 5 Significance of Changes in Operational Noise Exposure...................................................16 Table 6 Vibration Levels Measured during Construction Activities...............................................20 Table 7 Groundborne Vibration Architectural Damage Criteria....................................................22 Table 8 Phases 1 and 2 Construction Noise Levels at the Le Doux Well Site ................................23 Table 9 Phases 1 and 2 Construction Noise Levels at the Gregory Well Site ................................25 Table 10 Estimated Operational Noise Levels - Le Doux Well Site..................................................26 Table 11 Estimated Operational Noise Levels - Gregory Well Site..................................................27 Table 12 Vibration Levels at Sensitive Receptors – Le Doux Well Site ............................................29 Table 13 Vibration Levels at Sensitive Receptors – Gregory Well Site............................................29 Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
ii
Figures
Figure 1 Regional Location................................................................................................................5 Figure 2 Project Site Location ...........................................................................................................6 Figure 3 Approximate Noise Measurement Locations ...................................................................15 Appendices
Appendix A Noise Monitoring Data
Appendix B Construction Noise Modeling
Appendix C Operational Noise Modeling
Project Description and Impact Summary
Noise and Vibration Study 3
1 Project Description and Impact Summary

1.1 Introduction
This study analyzes the potential noise and vibration impacts associated with the construction and operation of the proposed La Cienega Well Nos. 2 and 3 project (hereafter referred to as proposed project or project) located in the city of Beverly Hills, California. Rincon Consultants, Inc. (Rincon) prepared this study under contract to Kennedy Jenks in support of the environmental documentation being prepared pursuant to the California Environmental Quality Act (CEQA). Table 1 provides a summary of project impacts.

Table 1 Summary of Impacts
Impact Statements Proposed Project’s Level of Significance Would the project result in generation of a substantial temporary or permanent increase in ambient noise levels in the vicinity of the project in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies?
Less than significant impact
(Construction)
Less than significant impact (Operation)
Would the project result in the generation of excessive groundborne vibration or groundborne noise levels?
Less than significant impact
(Construction)
No impact (Operation)
For a project located within the vicinity of a private airstrip or an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? No impact

1.2 Project Summary
Project Description
The proposed project consists of construction and operation of two groundwater wells for raw water production on two non-contiguous areas (collectively referred to as the “project site”) within La Cienega Park in the city of Beverly Hills, located in northwest Los Angeles County. The purpose of the project is to enhance the City of Beverly Hills’ drinking water supplies. Construction of the two wells would require site preparation, minimal grading, well drilling and constant rate testing during daytime hours, construction of an approximately 420-square-foot concrete masonry unit building around each well, installation of water pipelines that extend from the proposed wells to an existing raw water transmission main within La Cienega Boulevard, and site restoration upon completion of construction. Both wells would be equipped with vertical turbine well pumps with aboveground motors with variable frequency drives, and both buildings would be equipped with heating, ventilation, and air conditioning (HVAC) equipment for the electrical rooms.

Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
4 Project Location
Figure 1 shows the regional location of the project site, and Figure 2 shows the project site in its neighborhood context. The two proposed groundwater well sites include the following:
▪ Le Doux Well Site: The Le Doux Well site consists of the southwestern corner of Frank Fenton Field within the portion of La Cienega Park located on Assessor's Identification Number (AIN) 4333-026-900. The Le Doux Well site would be accessed via two approximately 15-foot-wide access ramps from Le Doux Road. The total construction impact area (inclusive of the permanent well footprint and the construction staging/laydown area) for the Le Doux Well site would encompass approximately 8,800 square feet (0.20 acre). The heating, ventilation, and air conditioning unit (HVAC) equipment would be located on either the north or south side of the concrete masonry unit building.
▪ Gregory Well: The Gregory Well site consists of the existing maintenance yard within a portion of La Cienega Park located on AIN 4333-031-900. The Gregory Well site is located at the eastern end of La Cienega Park and is bordered by Gregory Way to the north and single-family residences to the south/east. The total construction impact area (inclusive of the permanent well footprint and the construction staging/ laydown area) for the Gregory Well site would encompass approximately 16,100 square feet (0.37 acre), which would include portions of the existing maintenance yard and the La Cienega Park baseball field. The well itself would be installed within the existing maintenance yard, and impacts to the baseball field would be limited to temporary construction staging/laydown. The Gregory Well site would be accessed primarily via the existing maintenance yard gate with secondary access provided from the north on Gregory Way and/or at other locations within the maintenance yard (necessitating temporary removal of existing fencing/materials). The HVAC equipment would be located on the south side of the concrete masonry unit building.

Both proposed well sites have a General Plan land use designation of “Parks (Unzoned)”1 and are zoned Open Space by the City (City of Beverly Hills 2023a). Historically, the project site has consisted of recreational land (park and sports fields). Land uses surrounding the project site include residential and recreational land uses to the north, east, and west, and residential and commercial/retail uses to the south.

Construction
Construction activities would include two phases - well drilling and well equipping - that would occur at both well sites. Phase 1 (well drilling) would include demolition, site preparation, grading, bore hole drilling, zone testing, casing/gravel pack/cement seal installation, well development pumping, pump testing, and site restoration. Phase 2 (well equipping) would include well equipping (pump/column/motor), construction of a concrete masonry unit well building and appurtenances, architectural coating, pipeline installation, and site restoration and 1 The “Unzoned” category in the “Parks (Unzoned)” is not a zoning classification but rather includes the City’s total parkland acreage (76.7 acres) as well as approximately 1.2 acres of additional “unzoned” land in the city (City of Beverly Hills 2005).

Project Description and Impact Summary
Noise and Vibration Study 5
Figure 1 Regional Location
Devonshire St !
~ Plummer St i Nordhoff St J ~ 1111 "'
~ ~ ~ ] <.... ..:,c a::
~ ~ ~ Saticoy St
~ c §; Sherman Way
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~
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Topanga
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Santa Monica Mountains
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<;
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0 2.5 5 Miles
Imagery provi e y Esri an its icensors c 2023.
* Project Location
N
A
El Segundo
0 La Crescenta-Montrose
Angeles
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La Canada Flintridge
Burbank
tt,, Glendale
lt,c-J11neth d
Griffith
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'
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W D/ylhplc Blvd
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@) Willowbrook \
Altadena
New York Or
@ Pasadena
watnor.it
tvd f De\ Mar Blvd
E California Blvd
Columbia t San J'vl.a r
South Pasadena
Alhambra
~ Garvey Ave.

Monterey Park
60 South Gate
Lynwood
~o~ec.(aOS Av W Ros rans Ave
Gardena t1 anhatt Lawndale
"'<a. Redondo Beach
Hermosa Beach
Santa Barbara
W 182Nd S\
Bakersfield
99 L~~~~~~js V Forest
Edwards Air
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Lancaster
Palmdale
Artesia Blvd
58 Barstow Qj
Victorville
Santa Clarita Angeles
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Oxnard
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X Angeles Ontario
Riverside 60
. Corona Anaheim
Santa Ana
Murrieta
Oceanside
ij;
Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
6 Figure 2 Project Site Location
Gregory Wel l Site
0 250 N A 125
Feet
Project Description and Impact Summary
Noise and Vibration Study 7
landscaping. Construction of the two wells would not occur simultaneously. Construction of the project is anticipated to occur over approximately two and a half years beginning in November 2023 and concluding in May 2026. Construction would take place Monday through Friday between the hours of 8:00 a.m. to 6:00 p.m., with the exception of the pump testing activities, which could also occur on Saturdays between the hours of 8:00 a.m. to 6:00 p.m. with issuance of an after hours construction permit. Construction activities are anticipated to produce approximately 350 cubic yards (CY) of cut soil, of which 50 CY would be used as fill on site. An additional 300 CY of soil would be imported from off-site sources. Demolition activities would include the demolition of 300 linear feet of 16-foot-tall chain link fencing. No blasting or pile driving activities would be performed. No nighttime construction activities are proposed. Construction staging and materials laydown would occur adjacent to each well site. Approximately 12 trees would be removed to accommodate construction site access at the Le Doux Well site, and the existing berm along the western side of the parcel would be removed during construction and partially replaced. In addition, one existing light pole associated with the baseball field may need to be removed and relocated in the immediate vicinity to accommodate the proposed Gregory Well.

The City would require the project construction contractor(s) to implement the following best management practices (BMPs) for construction noise reduction as part of the construction contractor specifications to achieve regulatory compliance with the City’s noise ordinance:
▪ Temporary Sound Barrier. A temporary sound barrier would be erected at a height of at least 24 feet along the boundaries of the Le Doux Well site and the Gregory Well site to reduce construction noise levels. The barrier would be constructed with a solid material that has a density of at least 1.5 pounds per square foot with no gaps from the ground to the top of the barrier. The temporary sound barrier would be in place during the bore hole drilling, casing and material installation, pump development, and pump testing stages of Phase 1. ▪ Construction Noise Control Plan. The City would require its construction contractor to prepare a Construction Noise Control Plan that includes the following measures. The details of the Construction Noise Control Plan would be included as part of the construction drawing set.  At least 21 days prior to the start of construction activities, all off-site businesses and residents within 500 feet of the well sites would be notified of the planned construction activities. The notification would include a brief description of the project, the activities that would occur, the hours when construction would occur, and the construction period’s overall duration. The notification would include the telephone numbers of the City’s and contractor’s authorized representatives that are assigned to respond in the event of a noise or vibration complaint.
 At least 10 days prior to the start of construction activities, a sign would be posted at the entrance(s) to the well sites, clearly visible to the public, that includes permitted construction days and hours, as well as the telephone numbers of the City’s and contractor’s authorized representatives that are assigned to respond in the event of a noise or vibration complaint. If the authorized contractor’s representative receives a complaint, the representative would investigate, take appropriate corrective action, and report the action to the City.
 During the entire active construction period, equipment, tools, and trucks used for project construction would utilize the best available noise control techniques (e.g., improved mufflers, use of intake silencers, ducts, engine enclosures, and acoustically attenuating shields or shrouds), wherever feasible. During the entire active construction period, stationary noise sources would be located as far from sensitive receptors as feasible, Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
8 muffled, and enclosed within temporary sheds or insulation barriers, or other measures for equivalent noise reduction would be incorporated to the extent feasible.  The contractor would use impact tools that are hydraulically or electrically powered wherever feasible. Where the use of pneumatic tools is unavoidable, an exhaust muffler on the compressed air exhaust would be used along with external noise jackets on the tools.  Stockpiling of materials would be located as far as feasible from nearby noise-sensitive receptors.
 Signs shall be posted at the job site entrance(s) to reinforce the prohibition of unnecessary engine idling. All equipment would be turned off if not in use for more than five minutes.  Stereos and other amplified noise not necessary for the completion of construction work would be prohibited.
 During the entire active construction period and to the extent feasible, the use of noise producing signals, including horns, whistles, alarms, and bells shall be for safety warning purposes only. The construction manager would ensure the use of smart back-up alarms, which automatically adjust the alarm level based on the background noise level or switch off back-up alarms and replace with human spotters in compliance with safety requirements and laws.

Operation
The proposed groundwater wells would be unmanned upon the completion of construction activities. One operator would travel to the two wells approximately once a week for routine maintenance and inspection activities. More intensive maintenance activities to replace certain well components would occur once every approximately five to ten years.

Environmental and Regulatory Setting
Noise and Vibration Study 9
2 Environmental and Regulatory Setting

2.1 Overview of Sound Measurement
Sound is a vibratory disturbance created by a moving or vibrating source, which is capable of being detected by the hearing organs. Noise is defined as sound that is loud, unpleasant, unexpected, or undesired and may therefore be classified as a more specific group of sounds. The effects of noise on people can include general annoyance, interference with speech communication, sleep disturbance, and, in the extreme, hearing impairment (California Department of Transportation [Caltrans] 2013).

Noise levels are commonly measured in decibels (dB) using the A-weighted sound pressure level (dBA). The A-weighting scale is an adjustment to the actual sound pressure levels so that they are consistent with the human hearing response, which is most sensitive to frequencies around 4,000 Hertz and less sensitive to frequencies around and below 100 Hertz (Kinsler, et. al. 1999).

Decibels are measured on a logarithmic scale that quantifies sound intensity in a manner similar to the Richter scale used to measure earthquake magnitudes. A doubling of the energy of a noise source, such as doubling of traffic volume, would increase the noise level by 3 dBA; dividing the energy in half would result in a 3 dBA decrease (Crocker 2007).

Human perception of noise has no simple correlation with sound energy: the perception of sound is not linear in terms of dBA or in terms of sound energy. Two sources do not “sound twice as loud” as one source. It is widely accepted that the average healthy ear can barely perceive changes of 3 dBA, increase or decrease (i.e., twice the sound energy); that a change of 5 dBA is readily perceptible; and that an increase (or decrease) of 10 dBA sounds twice (or half) as loud (Crocker 2007).

Sound changes in both level and frequency spectrum as it travels from the source to the receptor.

The most obvious change is the decrease in level as the distance from the source increases. The manner by which noise reduces with distance depends on factors such as the type of sources (e.g., point or line, the path the sound will travel, site conditions, and obstructions). Noise levels from a point source typically attenuate, or drop off, at a rate of 6 dBA per doubling of distance (e.g., construction, industrial machinery, ventilation units). Noise from a line source (e.g., roadway, pipeline, railroad) typically attenuates at about 3 dBA per doubling of distance (Caltrans 2013).

The propagation of noise is also affected by the intervening ground, known as ground absorption. A hard site, such as a parking lot or smooth body of water, receives no additional ground attenuation and the changes in noise levels with distance (drop-off rate) result from simply the geometric spreading of the source. An additional ground attenuation value of 1.5 dBA per doubling of distance applies to a soft site (e.g., soft dirt, grass, or scattered bushes and trees) (Caltrans 2013).

Noise levels may also be reduced by intervening structures; the amount of attenuation provided by this “shielding” depends on the size of the object and the frequencies of the noise levels. Natural terrain features such as hills and dense woods, and man-made features such as buildings and walls, can significantly alter noise levels. Generally, any large structure blocking the line of sight will provide at least a 5-dBA reduction in source noise levels at the receptor (Federal Highway Administration [FHWA] 2011). Structures can substantially reduce exposure to interior noise as well.

The FHWA’s 2011 guidelines indicate that modern building construction generally provides an exterior-to-interior noise level reduction of 20 to 35 dBA with closed windows.

Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
10 The impact of noise is not a function of loudness alone. The time of day when noise occurs, and the duration of the noise are also important factors of project noise impact. Most noise that lasts for more than a few seconds is variable in its intensity. Consequently, a variety of noise descriptors have been developed. One of the most frequently-used noise metrics is the equivalent noise level (Leq); it considers both duration and sound power level. The Leq is defined as the single steady Aweighted level equivalent to the same amount of energy as that contained in the actual fluctuating levels over time.

Noise that occurs at night tends to be more disturbing than noise occurring during the day.

Community noise is usually measured using Day-Night Average Level (Ldn), which is the 24-hour average noise level with a +10 dBA penalty for noise occurring during nighttime (10:00 p.m. to 7:00 a.m.) hours. It is also measured using CNEL, which is the 24-hour average noise level with a +5 dBA penalty for noise occurring from 7:00 p.m. to 10:00 p.m. and a +10 dBA penalty for noise occurring from 10:00 p.m. to 7:00 a.m. (Caltrans 2013). Noise levels described by Ldn and CNEL usually differ by about 1 dBA. The relationship between the peak-hour Leq value and the Ldn/CNEL depends on the distribution of traffic during the day, evening, and night.

2.2 Overview of Vibration
Groundborne vibration of concern in environmental analysis consists of the oscillatory waves that move from a source through the ground to adjacent structures. The number of cycles per second of oscillation makes up the vibration frequency, described in terms of Hz. The frequency of a vibrating object describes how rapidly it oscillates. The normal frequency range of most groundborne vibration that can be felt by the human body starts from a low frequency of less than 1 Hz and goes to a high of about 200 Hz (Crocker 2007).

While people have varying sensitivities to vibrations at different frequencies, in general they are most sensitive to low-frequency vibration. Vibration in buildings, such as from nearby construction activities, may cause windows, items on shelves, and pictures on walls to rattle. Vibration of building components can also take the form of an audible low-frequency rumbling noise, referred to as groundborne noise. Groundborne noise is usually only a problem when the originating vibration spectrum is dominated by frequencies in the upper end of the range (60 to 200 Hz), or when foundations or utilities, such as sewer and water pipes, physically connect the structure and the vibration source (Federal Transit Administration [FTA] 2018). Although groundborne vibration is sometimes noticeable in outdoor environments, it is almost never annoying to people who are outdoors. The primary concern from vibration is that it can be intrusive and annoying to building occupants and vibration-sensitive land uses.

Vibration amplitudes are usually expressed in peak particle velocity (PPV), which is normally described in inches per second (in/sec). PPV is defined as the maximum instantaneous positive or negative peak of a vibration signal. PPV is often used in monitoring of blasting vibration and other construction activities because it is related to the stresses that are experienced by buildings (Caltrans 2020).

2.3 Sensitive Receptors
Noise exposure goals for various types of land uses reflect the varying noise sensitivities associated with those uses. The Beverly Hills General Plan Noise Element identifies noise-sensitive land uses as those uses that have associated human activities that may be subject to stress or significant Environmental and Regulatory Setting
Noise and Vibration Study 11
interference from noise, such as residences (including residences for the elderly), schools, churches, and libraries (City of Beverly Hills 2010).

As shown on Figure 2, noise-sensitive receptors near the Le Doux Well site include multi-family and single-family residences approximately 60 feet to the west across Le Doux Road, multi-family residences approximately 135 feet to the south across West Olympic Boulevard, and the Margaret Herrick Library approximately 145 feet to the north. Noise-sensitive receptors near the Gregory Well site include single-family residences approximately 100 to the south along Schumacher Drive and multi-family and single-family residences approximately 60 feet to the northeast across Gregory Way.

Vibration-sensitive receptors are similar noise-sensitive receptors, including residences and institutional uses such as schools, churches, and hospitals. However, vibration sensitive receptors also include fragile/historic-era buildings and buildings where vibrations may interfere with vibration-sensitive equipment that is affected by vibration levels that may be well below those associated with human annoyance (e.g., recording studies or medical facilities with sensitive equipment). The nearest vibration sensitive receptors near the Le Doux Well site and the Gregory Well site are the same uses as the described above as noise sensitive receptors with the exception of the Margaret Herrick Library. The Margaret Herrick Library is housed in the Water Treatment Plant No. 1 building, which is a historic-era structure built in 1927 and is a City of Beverly Hills Landmark.

2.4 Project Noise Setting
The most common source of noise in the project site vicinity is vehicular traffic on West Olympic Boulevard, La Cienega Boulevard, and Gregory Way. To characterize ambient noise levels in the project vicinity, the following eight short-term (10-minute; ST) and two long-term (24-hour; LT) noise level measurements were conducted on March 16, March 17, March 23, and March 24, 2023:
▪ ST-1 - conducted at Frank Fenton Field at La Cienega Park to capture ambient noise level at the field in the vicinity of the Le Doux Well site
▪ ST-2 - conducted in front of the residences west of the Le Doux Well site across Le Doux Road to capture ambient noise levels at these residences
▪ ST-3 - conducted at the southern property line of the Margaret Herrick Library, north of the Le Doux Well site, to capture ambient noise levels at the library ▪ ST-4 - conducted in front of the residences south of the Le Doux Well site across West Olympic Boulevard to capture ambient noise levels at the residences ▪ ST-5 - conducted at the alleyway separating the southern boundary of the Gregory Well site from the residences immediately south of the Gregory Well site to capture ambient noise levels at these residences
▪ ST-6 - conducted at the residences northeast of the Gregory Well site across Gregory Way to measure ambient noise levels at these residences
▪ ST-7 - conducted at the baseball fields west of the Gregory Well site to capture ambient noise levels at the baseball field
▪ ST-8 - conducted near the playground at the La Cienega Park and Community Center to capture ambient noise levels at the park and community center area Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
12 ▪ LT-1 - conducted at the southwest corner of Frank Fenton Field to capture ambient noise levels in the vicinity of the Le Doux Well site
▪ LT-2 - conducted at the alleyway separating the southern boundary of the Gregory Well site from the residences immediately south of the Gregory Well site to capture ambient noise levels in the vicinity of the Gregory Well site
Table 2 summarizes the results of the short-term measurements, and Table 3 and Table 4 summarize the results of the long-term measurements. The noise measurement locations are shown in Figure 3.

Table 2 Short-Term Noise Measurement Results
Measurement
Location Measurement Location Sample Times
Approximate Distance
to Primary Noise Source
Leq
(dBA)
Lmin
(dBA)
Lmax
(dBA)
ST-1 Frank Fenton Field at La
Cienega Park
12:02 – 12:12 p.m. Approximately 220 feet
to West Olympic
Boulevard centerline
and 185 feet to the La
Cienega Boulevard
centerline
61 58 70
ST-2 Residences to the west
of the Le Doux Well site
11:49 – 11:59 a.m. Approximately 110 feet
to West Olympic
Boulevard centerline
66 51 80
ST-3 Margaret Herrick
Library
12:13 – 12:23 p.m. Approximately 300 feet
to West Olympic
Boulevard centerline
and 175 feet to the La
Cienega Boulevard
centerline
56 52 66
ST-4 Residences to the south
of the Le Doux Well site
12:27 – 12:37 p.m. Approximately 45 feet to
West Olympic Boulevard
centerline
75 53 97
ST-5 Property line of the
residence immediately
south of the Gregory
Well site
12:58 – 1:08 p.m. Approximately 190 feet
to Schumacher Drive
centerline and 200 feet
to the Gregory Lane
centerline
48 42 65
ST-6 Residences to the
northeast of the
Gregory Well site
1:35 – 1:45 p.m. Approximately 20 feet to
the Gregory Lane
centerline
63 44 70
ST-7 Baseball fields at La
Cienega Park
1:15 – 1:25 p.m. Approximately 430 feet
to La Cienega Boulevard
centerline
58 45 79
Environmental and Regulatory Setting
Noise and Vibration Study 13
Measurement
Location Measurement Location Sample Times
Approximate Distance
to Primary Noise Source
Leq
(dBA)
Lmin
(dBA)
Lmax
(dBA)
ST-8 La Cienega Park and
Community Center
12:44 – 12:54 p.m. Approximately 90 feet to
Gregory Lane centerline
and 335 feet to the La
Cienega Boulevard
centerline
54 47 77
dBA = A-weighted decibels; Leq = equivalent noise level; Lmin = minimum noise level, Lmax = maximum noise level See Figure 3 for approximate noise measurement locations and Appendix A for full noise measurement details.

Table 3 Long-Term Noise Measurement Results - Le Doux Well Site Sample Time dBA Leq Sample Time dBA Leq
24-hour Measurement – March 23-24, 2023
7:20 a.m. 65 7:20 p.m. 62
8:20 a.m. 64 8:20 p.m. 61
9:20 a.m. 64 9:20 p.m. 60
10:20 a.m. 64 10:20 p.m. 61
11:20 a.m. 61 11:20 p.m. 59
12:20 p.m. 64 12:20 a.m. 57
1:20 p.m. 61 1:20 a.m. 60
2:20 p.m. 62 2:20 a.m. 54
3:20 p.m. 64 3:20 a.m. 57
4:20 p.m. 62 4:20 a.m. 58
5:20 p.m. 61 5:20 a.m. 61
6:20 p.m. 61 6:20 a.m. 61
24-hour Noise Level (dBA CNEL) 67
dBA = A-weighted decibels; Leq = equivalent noise level; CNEL = community equivalent noise level See Figure 3 for approximate noise measurement locations and Appendix A for full noise measurement details.

Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
14 Table 4 Long-Term Noise Measurement Results - Gregory Well Site Sample Time dBA Leq Sample Time dBA Leq
24-hour Measurement – March 16-17, 2023
11:15 a.m. 53 11:15 p.m. 58
12:15 p.m. 53 12:15 a.m. 46
1:15 p.m. 57 1:15 a.m. 47
2:15 p.m. 52 2:15 a.m. 49
3:15 p.m. 53 3:15 a.m. 52
4:15 p.m. 50 4:15 a.m. 49
5:15 p.m. 58 5:15 a.m. 51
6:15 p.m. 61 6:15 a.m. 54
7:15 p.m. 53 7:15 a.m. 58
8:15 p.m. 50 8:15 a.m. 63
9:15 p.m. 51 9:15 a.m. 54
10:15 p.m. 52 10:15 a.m. 53
24-hour Noise Level (dBA CNEL) 60
dBA = A-weighted decibels; Leq = equivalent noise level; CNEL = community equivalent noise level See Figure 3 for approximate noise measurement locations and Appendix A for full noise measurement details.

Environmental and Regulatory Setting
Noise and Vibration Study 15
Figure 3 Approximate Noise Measurement Locations
Gregory Well Site
Noise Measurement Types
~ Long Term Noise Measurement (LT) * Short Term Noise Measurement (ST) 220 N A 0 110
Feet
Imagery provided by Microsoft Bing and its licensors © 2023.

Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
16 2.5 Regulatory Setting
State
California regulates freeway noise, sets standards for sound transmission, provides occupational noise control criteria, identifies noise standards, and provides guidance for local land use compatibility. State law requires each county and city to adopt a General Plan that includes a Noise Element prepared pursuant to guidelines adopted by the Governor’s Office of Planning and Research. The purpose of the Noise Element is to limit the exposure of the community to excessive noise levels. In addition, CEQA requires all known environmental effects of a project be analyzed, including environmental noise impacts.

City of Beverly Hills
Beverly Hills General Plan
The City’s General Plan Noise Element contains noise policies that address unnecessary, excessive, and annoying noise levels and sources, such as vehicles, construction, special sources (e.g., radios, musical instrument, animals) and stationary sources (e.g., heating and cooling systems, mechanical rooms). Goals and policies of the Noise Element that are applicable to the project include the following (City of Beverly Hills 2010):

Goal N 1 Land Use Conflicts. Minimize land use conflicts between various noise sources and other human activities.

Policy N 1.5 Noise Mitigation Measures. Require noise mitigation measures for noise-sensitive receptors when a significant noise impact is identified. A significant noise impact occurs when there is an increase in CNEL, as shown in Table 5.

Table 5 Significance of Changes in Operational Noise Exposure Existing Noise Exposure (CNEL) Significant Noise Increase (dBA) 55 3
60 2
65 1
70 1
Over 75 1
CNEL = Community Noise Exposure Level; dBA = A-weighted decibel Source: City of Beverly Hills 2010
Policy N 1.6 Construction. In Beverly Hills, it is against the law to operate equipment or perform any outside construction or repair work on any building, structure, pneumatic hammer, derrick, steam or electric hoist, or other construction type devices, between the hours of 6:00 p.m. of one day and 8:00 a.m. of the next day, or at any time on any public holiday so as to cause discomfort or annoyance in a residential zone, unless beforehand a permit therefore has been obtained.

Goal N 3 Non-Transportation Noise. Minimize non-transportation related noise impacts on sensitive noise receptors.

Environmental and Regulatory Setting
Noise and Vibration Study 17
Policy N 3.1 Protection from Stationary Noise Sources. Continue to enforce interior and exterior noise standards to ensure that sensitive noise receptors are not exposed to excessive noise levels from stationary noise sources such as machinery, equipment, fans, and air conditioning equipment.

Goal N 4 Construction Noise. Minimize excessive construction-related noise.

Policy N 4.1 Enforce Hours of Construction Activity. Continue to enforce restrictions on hours of construction activity to minimize the impact of noise and vibration from trucks, heavy drilling equipment, and other heavy machinery on adjacent noise-sensitive receptors, particularly in and near residential areas.

Beverly Hills Municipal Code
The City’s Noise Ordinance (Beverly Hills Municipal Code [BHMC] Sections 5-1-101 through 5-1-210) includes noise standards and regulations. Title 5, Chapter 1, Noise Regulations, of the BHMC contains the following regulations that would apply to the proposed project (City of Beverly Hills 2023):
5-1-202: Machinery, Equipment, Fans, and Air Conditioning It shall be unlawful for any person to operate any machinery, equipment, pump, fan, air conditioning apparatus, or similar mechanical device in any manner so as to create any noise which would cause the noise level at the property line of any property to exceed the ambient noise level by more than five decibels based on a reference sound pressure of 0.0002 microbars, as measured in any octave band center frequency, in cycles per second, as follows: 63, 125, 250, 500, 1,000, 2,000, 4,000, and 8,000 and for the combined frequency bands (all pass) (Ordinance 11-O-2613, effective 10-31-2011).
5-1-205: Restrictions on Construction Activity
A. No person shall engage in construction, maintenance or repair work which requires a city permit between the hours of 6:00 p.m. and 8:00 a.m. of any day, or at any time on a Sunday or public holiday unless such person has been issued an after hours construction permit pursuant to subsection C of this section. In addition, no person shall engage in such work within a residential zone, or within 500 feet of a residential zone, at any time on a Saturday unless such person has been issued an after hours construction permit issued pursuant to subsection C of this section.

For the purpose of this section, "public holiday" shall mean:
1 New Year's Day
2 Martin Luther King Jr. Day
3 Presidents Day
4 Memorial Day
5 Independence Day
6 Labor Day
7 Yom Kippur
8 Veterans Day
9 Thanksgiving Day
10 The Friday following Thanksgiving Day
Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
18 11 Christmas Day
Nothing in this section shall restrict the performance of "emergency work" as that term is defined in section 5-1-102 of this chapter.

B. No person employed for the purposes of construction, maintenance, or repair work which requires a City permit shall enter a site on which such work will be done prior to 8:00 a.m. Any violation of this subsection shall be deemed to be an infraction.

C. The City building official, after consultation with appropriate City officials, may issue an after hours construction permit authorizing work and/or entrance to a work site otherwise prohibited by this section if the City building official determines that the public interest will be served by such a permit. Situations in which the public interest may be served by the issuance of such an after hours construction permit includes, but are not limited to, construction near school grounds, and construction that may interfere with vehicular or pedestrian traffic in heavily traveled public rights-of-way.

D. Applications for an after-hours construction permit issued pursuant to subsection C of this section shall be in writing and shall set forth how the public interest will be served by issuing the permit. An after-hours construction permit may be revoked or suspended by the city building official if the city building official determines that activity conducted pursuant to the permit detrimentally affects the public health, safety or welfare (Ordinance 11-O-2613, effective 10-31- 2011).

Methodology and Significance Thresholds
Noise and Vibration Study 19
3 Methodology and Significance
Thresholds

3.1 Construction Noise
Construction noise was estimated using the FHWA Roadway Construction Noise Model (RCNM) (FHWA 2006). RCNM predicts construction noise levels for a variety of construction operations based on empirical data and the application of acoustical propagation formulas. Using RCNM, construction noise levels were estimated at noise sensitive receptors near the project site. RCNM provides reference noise levels for standard construction equipment, with an attenuation rate of 6 dBA per doubling of distance for stationary equipment.

Variation in power imposes additional complexity in characterizing the noise source level from construction equipment. Power variation is accounted for by describing the noise at a reference distance from the equipment operating at full power and adjusting it based on the duty cycle of the activity to determine the Leq of the operation (FHWA 2006). Each phase of construction has a specific equipment mix, depending on the work to be accomplished during that phase. Each phase also has its own noise characteristics; some have higher continuous noise levels than others, and some have high impact (i.e., instantaneous) noise levels.

Construction activity would generate temporary noise in the project site vicinity, exposing surrounding nearby receptors to increased noise levels. Construction noise would typically be higher during the heavier periods of initial construction (i.e., demolition, site preparation, and casing and material installation) and would be lower during the later construction phases (i.e., architectural coating and site restoration). Typical heavy construction equipment could include dozers, loaders, graders, and dump trucks. It is assumed diesel engines would power all construction equipment.

Construction equipment would not all operate at the same time or location. In addition, construction equipment would not be in constant use during the eight-hour operating day. Noise levels from each phase of construction were modeled in RCNM based on the equipment list provided by Kennedy Jenks. Construction activities would occur primarily between the hours of 8:00 a.m. and 6:00 p.m. on Mondays through Fridays as required by BHMC Section 5-1-205 with the exception of the pump testing activities, which could also occur on between the hours of 8:00 a.m. to 6:00 p.m. with issuance of an after hours construction permit.

Construction activities would be located as close as 25 feet to the closest sensitive receptors at the Le Doux Well site and as close as 40 feet at the Gregory Well site but would typically be located at an average distance farther away from these receptors due to the dynamic nature of construction.

Construction equipment is typically dispersed in various areas of the sites, with only a limited amount of equipment operating near a given location at a particular time. The FTA 2018 Transit Noise and Vibration Impact Assessment document recommends evaluating construction noise impacts from the center of the construction site on page 177, stating that the distance variable in its recommended construction noise calculation “assumes that all equipment operates at the center of the project.” Therefore, it is common, industry-standard practice to analyze average construction noise from the center of the site because this is the approximate center of where noise would be generated as equipment moves around the site throughout the workday. In accordance with this FTA recommended methodology, construction noise during each stage for Phases 1 and 2 of construction was analyzed from the center of the site.

Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
20 A temporary sound barrier would be erected during the bore hole drilling, casing and material installation, pump development, and pump testing stages of Phase 1. The temporary sound wall would reduce construction noise levels by at least 15 dBA during these construction stages (FHWA 2011; Bies et al. 2018; Harris 1991).

Additional information on phasing and construction equipment assumptions is provided in Appendix B.

3.2 Groundborne Vibration
The project does not include any substantial vibration sources associated with operation. Thus, construction activities have the greatest potential to generate ground-borne vibration affecting nearby receptors. The greatest vibratory source during construction would be a large bulldozer and bore/drill rig. Neither blasting nor pile driving would be required for construction of the project.

Construction vibration estimates are based on vibration levels reported by the FTA (FTA 2018). Table 6 shows typical vibration levels for various pieces of construction equipment used in the assessment of construction vibration.

Table 6 Vibration Levels Measured during Construction Activities Equipment PPV at 25 feet (in/sec)
Vibratory Roller 0.21
Large Bulldozer 0.089
Loaded Trucks 0.076
Small Bulldozer 0.003
Bore/Drill Rig 0.089
PPV = peak particle velocity; in/sec = inches per second Source: FTA 2018

3.3 On-site Operational and Off-Site Traffic Noise
Sources
The operational noise sources at the well sites are anticipated to be those that would be typical of groundwater well projects, such as pumps, motors, mechanical equipment (e.g., HVAC equipment), transformers, and operational maintenance site visits. Each well site would include an approximately 420-square-foot enclosed concrete masonry unit building that would contain an electrical room and a pump room.

The primary on-site operational noise source from the project would be HVAC units. A typical HVAC system with three tons of cooling capacity generates noise levels ranging up to 81 dBA at a distance of one meter (Hoover & Keith Inc. 2000). The proposed HVAC units are wall-mounted units that would be located on the exterior of the electrical room. Both well sites would also be equipped with vertical turbine well pumps with above-grade motors with variable frequency drives. The abovegrade motor for each well pump would operate at 50 horsepower (HP) and 1760 revolutions per minute (RPM) at full speed. The pumps would be enclosed within the pump room with a ventilation system inlet louver and electric fan equipped with noise dampeners, which would provide an estimated interior-to-exterior reduction of 10 dBA related to noise generated by the well pumps Methodology and Significance Thresholds
Noise and Vibration Study 21
(Price Noise Control 2018). In addition, a transformer would be located outside of the concrete masonry unit building at each well site. The transformer at each well site would be serviced by Southern California Edison and would be approximately 75 to 100 kilovolt-ampere (kVA). A typical 75- to 100-kVA transformer generates noise levels ranging up to 50 dBA at a distance of one foot from the outside edge of the transformer (EE Power 2021). One operator would visit the well sites weekly, which would contribute to existing traffic noise levels on local roadways.

For the Gregory Well site, operational noise was conservatively measured from the closest edge of the proposed concrete masonry unit building to the property line of each nearby sensitive receptor because the project site plans are not finalized and the exact location of the concrete masonry unit building, pumps, and transformers are unknown at this time. The HVAC equipment would be located on the south side of the concrete masonry unit building. Because the proposed HVAC unit would be located on the south side of the well building, a 10-dBA reduction in HVAC noise levels was assumed for the receptors northeast of the Gregory Well site because these receptors would be shielded from the HVAC unit by the well building.

For the Le Doux Well site, operational noise was conservatively measured from the closest edge of the proposed concrete masonry unit building to the property line of each nearby sensitive receptor because the project site plans are not finalized and the exact location of the concrete masonry unit building, pumps, and transformers are unknown at this time. The HVAC equipment would be located on either the north or south side of the concrete masonry unit building. Because the proposed HVAC unit would be located on either the north or south side of the well building, a 10- dBA reduction in HVAC noise levels was assumed for receptors west of the Le Doux Well site because these receptors would be shielded from the HVAC unit by the well building.

3.4 Significance Thresholds
Based on Appendix G of the CEQA Guidelines, the project would have a significant noise impact if the project would:
a) Generate a substantial temporary or permanent increase in ambient noise levels in the vicinity of the project in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies;
b) Generate excessive groundborne vibration or groundborne noise levels; or c) For a project located within the vicinity of a private airstrip or an airport or public use airport, expose people residing or working in the project area to excessive noise levels.

Construction Noise
Pursuant to BHMC Section 5-1-205, construction activities are limited to the hours of 8:00 a.m. and 6:00 p.m., Monday through Friday (excluding public holidays) within 500 feet of a residential zone unless the City has issued an after hours construction permit for the project. Consistent with the City’s approach in previous environmental documentation, construction noise would be significant if construction activities occurring on the project site result in a noise increase of five dBA or more outside the hours permitted by the City’s noise ordinance at the project site (i.e., between 6:00 p.m. and 8:00 a.m. on weekdays, or at any time on Saturday, Sunday, or a public holiday) or would increase noise by five dBA or more during daytime hours at a school, hospital, church, or institute of learning (City of Beverly Hills 2021 and 2022).

Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
22 Construction Vibration
The City of Beverly Hills has not adopted standards to assess vibration impacts during construction and operation. Therefore, vibration limits used in this analysis to determine a potential impact from construction activities are based on those outlined in the FTA Transit Noise and Vibration Impact Assessment Manual (FTA 2018). Groundborne vibration levels that could induce potential architectural damage to buildings are identified in Table 7. Based on FTA recommendations, limiting vibration levels to below 0.2 in/sec PPV at non-engineered timber and masonry buildings (which would apply to nearby residential structures) would prevent architectural damage. Vibration impacts related to human annoyance were not analyzed because construction would occur during daytime hours and these types of impacts are typically of concern only during nighttime hours when most residents are sleeping.

Table 7 Groundborne Vibration Architectural Damage Criteria Building Category PPV (in/sec)
I. Reinforced concrete, steel, or timber (no plaster) 0.5 II. Engineered concrete and masonry (no plaster) 0.3
III. Nonengineered timber and masonry buildings 0.2
IV. Buildings extremely susceptible to vibration damage 0.12 in/sec = inches per second; PPV = peak particle velocity Source: FTA 2018
On-site Operational Noise
On-site operational noise generated by the proposed project would be significant if it would exceed the noise level limits specified in Policy N 1.5 of the City’s current General Plan Noise Element (see Table 5 in Section 2.5, Regulatory Setting). As shown in Table 3 and Table 4, existing ambient noise levels in the vicinity of the Le Doux Well site and the Gregory Well site are approximately 67 dBA CNEL and 60 dBA CNEL, respectively. Therefore, based on thresholds in Table 5, on-site operational noise sources would generate a significant impact if noise levels at the property line of nearest sensitive receptors increase by more than 1 dBA at the Le Doux Well site or by more than 2 dBA at the Gregory Well site.

Off-Site Traffic Noise
As discussed under Section 2.1, Overview of Sound Measurement, the average healthy ear can barely perceive an increase of up to 3 dBA in noise levels, and a change of 5 dBA is readily perceptible. Based on this information, off-site traffic noise impacts would be significant if projectrelated traffic would increase off-site traffic noise levels by 3 dBA or greater. Generally, a doubling of traffic (i.e., a doubling of the sound energy) would result in a 3 dBA increase (Caltrans 2013).

Impact Analysis
Noise and Vibration Study 23
4 Impact Analysis
Threshold: Would the project generate a substantial temporary or permanent increase in ambient noise levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? Impact N-1 CONSTRUCTION AND OPERATION OF THE PROJECT WOULD NOT GENERATE A SUBSTANTIAL

TEMPORARY OR PERMANENT INCREASE IN AMBIENT NOISE LEVELS IN EXCESS OF STANDARDS ESTABLISHED IN THE LOCAL GENERAL PLAN OR NOISE ORDINANCE, OR APPLICABLE STANDARDS OF OTHER AGENCIES. IMPACTS WOULD BE LESS THAN SIGNIFICANT.

Construction
As described in Section 1.2, Project Summary, the project would require two construction phases at each of the two well sites (Le Doux and Gregory) with Phase 1 consisting of well drilling activities and Phase 2 consisting of well equipping activities. Noise from construction activities for each well site is analyzed separately because the wells would not be constructed simultaneously.

Le Doux Well
The closest sensitive receptors to the Le Doux Well site are the residences to the west and south and the Margaret Herrick Library to the north. Over the course of a typical construction day, construction equipment would be located as close as 25 feet to the nearest sensitive receptors but would typically be located at an average distance further away due to the dynamic nature of construction where equipment is mobile throughout the day. Table 8 identifies the estimated noise levels for construction during Phases 1 and 2 of construction at the closest sensitive receptors.

Construction noise was measured from the center of the Le Doux Well site and conservatively assumed combined use of all construction equipment during each phase of construction.

Table 8 Phases 1 and 2 Construction Noise Levels at the Le Doux Well Site Estimated Noise Levels (dBA Leq)
Construction Stage Residences to the West1 Residences to the South2 Margaret Herrick Library
to the North3
Phase 1
Demolition 86 77 78
Site Preparation 80 72 73
Bore Hole Drilling4 66 58 59
Casing and Material
Installation4
69 61 62
Pump Development4 67 59 60
Pump Testing4 56 48 49
Site Restoration and
Fencing 75 67 68
Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
24 Estimated Noise Levels (dBA Leq)
Construction Stage Residences to the West1 Residences to the South2 Margaret Herrick Library
to the North3
Phase 2
Site Preparation 76 68 69
Well Equipping 82 74 75
Well Building 85 77 78
Architectural Coating 78 70 71
Pipeline Installation 83 74 75
Site Restoration and
Landscaping 73 65 66
dBA = A-weighted sound-pressure level. Leq = equivalent noise level 1 Noise levels estimated at an average distance of 75 feet. 2 Noise levels estimated at an average distance of 195 feet. 3 Noise levels estimated at an average distance of 175 feet. 4 A 15-dBA reduction was taken to account for the temporary sound barrier that would be erected during these construction stages.

Source: Roadway Construction Noise Model. See Appendix B for modeling outputs.

As shown in Table 8, construction noise levels at the nearest sensitive receptors (the residences located west of the Le Doux Well site) could be as high as 86 dBA Leq during the demolition stage of Phase 1, which would occur approximately 75 feet away on average. Project construction would result in a significant noise impact if construction activities generate a noise level increase of 5 dBA outside the hours permitted by the City’s Noise Ordinance (BHMC Section 5-1-205) or increase ambient noise levels by five dBA or more during daytime hours at a school, hospital, church, or institute of learning. Project construction undertaken during weekdays between the hours of 8:00 a.m. and 6:00 p.m. at the Le Doux Well site would comply with the allowable hours of construction established in the Noise Ordinance and would not occur within 500 feet of a school, hospital, church, or institute of learning. However, limited pump testing activities during construction may occur on Saturdays, which would be outside the hours permitted by the City’s Noise Ordinance. As shown in Table 2, ambient noise levels at the residences to the west and south of the Le Doux Well site and at the Margaret Herrick Library are 66 dBA Leq, 75 dBA Leq, and 56 dBA Leq, respectively. As shown in Table 8, pump testing activities during construction would be approximately 56 dBA Leq at the residences to the west, 48 dBA Leq at the residences to the south, and 49 dBA Leq at the Margaret Herrick Library, which would not exceed ambient noise levels.

Therefore, construction at the Le Doux Well site would not generate a substantial temporary increase in ambient noise levels at the nearest sensitive receptors, and impacts would be less than significant. Furthermore, the project would include implementation of a construction noise control plan that would further minimize construction noise levels at nearby noise-sensitive receptors.

Gregory Well
The closest sensitive receptors to the Gregory Well site are single-family residences to the south and northeast. Over the course of a typical construction day, construction equipment would be located as close as 40 feet to these sensitive receptors but would typically be located at an average distance further away due to the dynamic nature of construction where equipment is mobile throughout the day. Table 9 identifies the estimated noise levels during Phases 1 and 2 of construction at the closest Impact Analysis
Noise and Vibration Study 25
sensitive receptors. Construction noise was measured from the center of the Gregory Well site and conservatively assume the combined use of all construction equipment during each phase of construction.

Table 9 Phases 1 and 2 Construction Noise Levels at the Gregory Well Site Estimated Noise Levels (dBA Leq)
Construction Stage Residences to the South1 Residences to the Northeast2 Phase 1
Demolition 81 83
Site Preparation 76 77
Bore Hole Drilling3 61 63
Casing and Material Installation3 65 66
Pump Development3 63 65
Pump Testing3 52 53
Site Restoration and Fencing 70 72
Phase 2
Site Preparation 71 73
Well Equipping 78 79
Well Building 81 82
Architectural Coating 74 76
Pipeline Installation 78 80
Site Restoration and Landscaping 69 71
dBA = A-weighted sound-pressure level. Leq = equivalent noise level 1 Noise levels estimated at an average distance of 130 feet. 2 Noise levels estimated at an average distance of 105 feet. 3 A 15-dBA reduction was taken to account for the temporary sound barrier that would be erected during these construction stages.

Source: Roadway Construction Noise Model. See Appendix B for modeling outputs.

As shown in Table 9, construction noise levels could be as high as 83 dBA Leq at the nearest sensitive receptors (e.g., the residences located northeast of the Gregory Well site) during the demolition stage of Phase 1, which would occur approximately 105 feet away. Project construction would result in a significant noise impact if construction activities generate a noise level increase of 5 dBA outside the hours permitted by the City’s Noise Ordinance (BHMC Section 5-1-205) or increase ambient noise levels by five dBA or more during daytime hours at a school, hospital, church, or institute of learning. Project construction undertaken during weekdays between the hours of 8:00 a.m. and 6:00 p.m. at the Gregory Well site would comply with the allowable hours of construction established in the Noise Ordinance and would not occur within 500 feet of a school, hospital, church, or institute of learning. However, limited pump testing activities during construction may occur on Saturdays, which would be outside the hours permitted by the City’s Noise Ordinance. As shown in Table 2, ambient noise levels at the residences to the south and northeast of the Gregory Well site are 48 dBA Leq and 63 dBA Leq, respectively. As shown in Table 9, pump testing activities during construction would be approximately 52 dBA Leq and 53 dBA Leq at these sensitive receptors, respectively, which would not exceed result in an increase of 5 dBA at either receptor. Therefore, Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
26 construction at the Gregory Well site would not generate a substantial temporary increase in ambient noise levels at the nearest sensitive receptors, and impacts would be less than significant.

Furthermore, the project would include implementation of a construction noise control plan that would further minimize construction noise levels at nearby noise-sensitive receptors.

Le Doux Well
Table 10 shows the combined noise levels from operation of the Le Doux Well at the nearest sensitive receptors. As shown in the table, noise generated by operation of the Le Doux Well would reach up to 56 dBA CNEL at the residences to the south and would result in a noise level increase of less than 1 dBA, which would not exceed the operational noise threshold of 1 dBA for receptors within the vicinity of the Le Doux Well site. As such, operation of the Le Doux Well would not generate a substantial permanent increase in ambient noise levels at the nearest sensitive receptors, and impacts would be less than significant.

Table 10 Estimated Operational Noise Levels - Le Doux Well Site Noise Source
Noise Level at
Residences to the West
(dBA)1
Noise Level at MultiFamily Residences to
the South (dBA)2
Noise Level at Margaret
Herrick Library to the
North (dBA)3
On-site Noise Sources
Pump4 (Leq) 40 33 30
HVAC Unit (Leq) 46 49 45
Transformer (Leq) 14 7 4
Overall Noise Level (Leq) 47 49 45
Overall Noise Level (CNEL) 53 56 52
Existing + Operational Project Noise
Existing Noise Level (CNEL)4 67 67 67
Existing Noise Level + Operational
Project Noise (CNEL) 67 67 67
Project-Related Noise Level
Increase < 1 < 1 < 1
Threshold of Significance5 1 1 1
Threshold Exceeded? No No No
dBA = A-weighted sound-pressure level; Leq = equivalent noise level; CNEL = Community Noise Level. 1 Noise levels estimated at an average distance of 115 feet. 2 Noise levels estimated at an average distance of 145 feet. 3 Noise levels estimated at an average distance of 200 feet. 4 Noise generated by the pump includes a 10-dBA reduction to account for enclosure in the pump room with ventilation system inlet louvers and electric fans equipped with noise dampeners.

Impact Analysis
Noise and Vibration Study 27
5 See Table 4 for existing ambient noise levels.
6 Based on Table 5, with an existing ambient noise level of 67 dBA CNEL, project operation would generate a significant impact if noise levels at the property line of nearest sensitive receptors increase by more than 1 dBA.

Note: Shielding effects from off-site buildings, terrain or other barriers are conservatively not factored into the attenuation calculations for the purposes of this analysis.

See Appendix C for operational noise modeling.

Gregory Well
Table 11 shows the combined noise levels from operation of the Gregory Well at the nearest sensitive receptors. As shown in the table, noise generated by operation of the Gregory Well would reach up to 58 dBA CNEL at the residences to the south and would result in a noise level increase of up to approximately 2 dBA, which would not exceed the operational noise threshold of 2 dBA for receptors within the vicinity of the Gregory Well. As such, operation of the Gregory Well would not generate a substantial permanent increase in ambient noise levels at the nearest sensitive receptors, and impacts would be less than significant.

Table 11 Estimated Operational Noise Levels - Gregory Well Site Noise Source
Noise Level at Residences to the
South (dBA)1
Noise Level at Residences to the
Northeast (dBA)2
On-site Noise Sources
Pump3 (Leq) 36 40
HVAC Unit (Leq) 51 46
Transformer (Leq) 10 14
Combined Noise Level (Leq) 52 47
Combined Noise Level (CNEL) 58 54
Existing + Operational Project Noise
Existing Noise Level (CNEL)4 60 60
Existing Noise Level + Operational Project
Noise (CNEL)
62 61
Project-Related Noise Level Increase 2 1
Threshold of Significance5 2 2
Threshold Exceeded? No No
dBA = A-weighted sound-pressure level; Leq = equivalent noise level; CNEL = Community Noise Level 1 Noise levels estimated at an average distance of 100 feet. 2 Noise levels estimated at an average distance of 60 feet. 3 Noise generated by the pump includes a 10-dBA reduction to account for enclosure in the pump room with ventilation system inlet louvers and electric fans equipped with noise dampeners. 4 See Table 4 for existing ambient noise levels.
5 Based on Table 5, with an existing ambient noise level of 60 dBA CNEL, project operation would generate a significant impact if noise levels at the property line of nearest sensitive receptors increase by more than 2 dBA.

Note: Shielding effects from off-site buildings, terrain or other barriers are conservatively not factored into the attenuation calculations for the purposes of this analysis.

See Appendix C for operational noise modeling.

Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
28 Off-Site Traffic Noise
Le Doux Road (north of West Olympic Boulevard) and Gregory Way (east of La Cienega Boulevard) serve as the primary local access roadways for the Le Doux Well site and the Gregory Well site, respectively. Le Doux Road and Gregory Way are residential streets that provide local access and have relatively lower traffic volumes as compared to major streets such as West Olympic Boulevard and La Cienega Boulevard. During operation of the project, one operator would travel to the two well sites once a week, which would result in two additional one-way vehicle trips on Le Doux Road, Gregory Way, and other larger area roadways. As a result, operation of the project would not have the potential to double existing traffic volumes on Le Doux Road or Gregory Way such that a perceptible 3-dBA increase in traffic noise levels would occur. Therefore, the minor increase in traffic volumes associated with the proposed project would not result in a substantial permanent increase in ambient noise levels at the nearest sensitive receptors, and impacts would be less than significant.

Mitigation Measures
No mitigation would be required.

Threshold: Would the project result in generation of excessive groundborne vibration or groundborne noise levels?
Impact N-2 PROJECT CONSTRUCTION WOULD NOT GENERATE EXCESSIVE GROUNDBORNE VIBRATION OR GROUNDBORNE NOISE LEVELS. VIBRATION WOULD NOT BE GENERATED DURING PROJECT OPERATION. IMPACTS WOULD BE LESS THAN SIGNIFICANT.

Construction activities known to generate excessive groundborne vibration, such as pile driving, would not be required for the project. Based on FTA recommendations, limiting vibration levels to below 0.12 in/sec PPV at buildings extremely susceptible to vibration damage and to below 0.2 in/sec PPV at nonengineered timber and masonry buildings would prevent architectural damage (FTA 2018). The greatest anticipated source of vibration during project construction would be from a large bulldozer, which would be used during demolition, site preparation, and well building activities, and a bore/drill rig, which would be used during bore hole drilling, casing and material installation, pump development/pump testing, and well equipping activities.

A large bulldozer may be used within 40 feet of the nearest off-site residential structures to the west of the Le Doux Well site and a bore/drill rig may be used within 100 feet of these residences.

As shown in Table 12Table 11, vibration levels from a large bulldozer and bore/drill rig would not exceed the significance threshold of 0.2 in/sec PPV at the nearest off-site residential structures. The Margaret Herrick Library located north of the Le Doux well site is housed in the Water Treatment Plant No. 1 building, which is a historic-era structure built in 1927 and is a City of Beverly Hills Landmark. A large bulldozer may be used within 55 feet of the Margaret Herrick Library, and a bore/drill rig may be used within 230 feet of the Margaret Herrick Library. As shown in Table 12, vibration levels from a large bulldozer and bore/drill rig would not exceed the significance threshold of 0.12 in/sec PPV at the Margaret Herrick Library. Therefore, construction vibration impacts at the Le Doux Well site would be less than significant.

Impact Analysis
Noise and Vibration Study 29
Table 12 Vibration Levels at Sensitive Receptors – Le Doux Well Site Equipment
Distance from
Nearest
Building
Estimated PPV at
Nearest Building
(in/sec)
Distance from
Margaret
Herrick Library
Estimated PPV at
Margaret Herrick
Library (in/sec)
Large Bulldozer 40
feet

0.044 55
feet

0.027
Bore/Drill Rig1 100
feet

0.011 230
feet

0.003
Threshold for Structural
Damage2
– 0.2 – 0.12
Threshold Exceeded? – No – No
PPV = peak particle velocity; in/sec = inches per second 1 Vibration levels measured for caisson drilling were used to approximate vibration levels from well drilling using a bore/drill rig. 2 The threshold for structural damage is based on the minimum vibration level for preventing damage to residential building with plastered walls (see Table 7).

A large bulldozer may be used within 35 feet of the nearest off-site residential structures to the northeast of the Gregory Well site, and a bore/drill rig may be used within 90 feet of these residences. As shown in Table 13, vibration levels from a large bulldozer and bore/drill rig would not exceed the significance threshold of 0.2 in/sec PPV at the nearest off-site structures. Therefore, construction vibration impacts at the Gregory Well site would be less than significant.

Table 13 Vibration Levels at Sensitive Receptors – Gregory Well Site Equipment
Distance from
Nearest Building
Estimated PPV at Nearest
Building (in/sec)
Large Bulldozer 35 feet 0.054
Bore/Drill Rig1 90 feet 0.013
Threshold for Structural Damage2 – 0.2
Threshold Exceeded? – No
PPV = peak particle velocity; in/sec = inches per second 1 Vibration levels measured for caisson drilling were used to approximate vibration levels from well drilling using a bore/drill rig. 2 The threshold for structural damage is based on the minimum vibration level for preventing damage to residential building with plastered walls (see Table 7).

The project does not include substantial vibration sources associated with operation. Therefore, project operation would not generate excessive groundborne vibration or groundborne noise levels.

No impact would occur.

Mitigation Measures
No mitigation measures would be required.

Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
30 Threshold: For a project located within the vicinity of a private airstrip or an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels?
Impact N-3 THE PROJECT WOULD NOT EXPOSE PEOPLE RESIDING OR WORKING IN THE PROJECT AREA TO EXCESSIVE NOISE LEVELS RELATED TO AIRSTRIP/AIRPORT OPERATION. NO IMPACT WOULD OCCUR.

The project site is not located within an airport land use plan or within two miles of a public or private airport (County of Los Angeles 2009). The closest airport is the Santa Monica Airport, which is approximately five miles southwest of the project site. Therefore, the project would not expose people residing or working in the project area to excessive noise levels related to airstrip/airport operation. No impact would occur.

Mitigation Measures
No mitigation measures would be required.

Conclusion
Noise and Vibration Study 31
5 Conclusion
The project would generate both temporary construction-related noise and long-term operational noise. Construction noise during the hours permitted by the City’s Noise Ordinance would not increase ambient noise levels by five dBA or more during daytime hours at a school, hospital, church, or institute of learning. Construction noise outside the hours permitted by the City’s Noise Ordinance would not increase ambient noise levels by five dBA or more. In addition, the project includes implementation of a construction noise control plan and installation of a temporary sound barrier during certain construction stages to further reduce construction noise impacts at the nearest sensitive receptors. Construction noise impacts would be less than significant.

Noise levels generated by project operation associated with HVAC units, pumps, and transformers would not exceed the City’s standards at the nearest property lines. Therefore, operational noise impacts would be less than significant.

The project would generate groundborne vibration during construction only. Groundborne vibration would not exceed the 0.2 in/sec PPV vibration threshold at the nearest structures, and constructionrelated vibration impacts would be less than significant.

The project site is not subject to an airport land use plan or within two miles of any public airport or public use airport. Therefore, no impacts related to airstrip/airport noise would occur.

Kennedy Jenks
La Cienega Well Nos. 2 and 3 Project
32 6 References
Bies, D., Hansen, C.H., & C. Howard. 2018. Engineering Noise Control, Fifth Edition.

Beverly Hills, City of. 2010. City of Beverly Hills General Plan Noise Element. https://www.beverlyhills.org/cbhfiles/storage/files/filebank/10284-- 8_Noise%2001122010.pdf (accessed March 2023).
______. 2021. One Beverly Hills Overlay Specific Plan Final Supplemental Environmental Impact Report.
https://www.beverlyhills.org/cbhfiles/storage/files/28117306626183530/OneBeverlyHillsO verlaySPFinalSEIR.pdf (accessed March 2023).
______. 2022. Cheval Blanc Beverly Hills Specific Plan Final Environmental Impact Report. https://www.beverlyhills.org/cbhfiles/storage/files/8988286831483060412/ChevalBlancBev erlyHillsSpecificPlanFinalEIR.pdf (accessed March 2023). ______. 2023. Beverly Hills Municipal Code.
https://codelibrary.amlegal.com/codes/beverlyhillsca/latest/overview (accessed March 2023).

California Department of Transportation (Caltrans). 2013. Technical Noise Supplement to the Traffic Noise Analysis Protocol. (CT-HWANP-RT-13-069.25.2) September. http://www.dot.ca.gov/hq/env/noise/pub/TeNS_Sept_2013B.pdf (accessed March 2023). ______. 2020. Transportation and Construction Vibration Guidance Manual. https://dot.ca.gov/- /media/dot-media/programs/environmental-analysis/documents/env/tcvgm-apr2020- a11y.pdf (accessed March 2023).

Crocker, Malcolm J. (Editor). 2007. Handbook of Noise and Vibration Control Book, ISBN: 978-0-471- 39599-7, Wiley-VCH, October.

EE Power. 2021. Transformer Nameplate Details and Sound Levels. July 24. https://eepower.com/technical-articles/transformer-nameplate-details-and-sound-levels/# (accessed March 2023).

Federal Highway Administration (FHWA). 2006. FHWA Highway Construction Noise Handbook. (FHWAHEP-06-015; DOT-VNTSC-FHWA-06-02).
https://www.fhwa.dot.gov/environment/noise/construction_noise/handbook/handbook00. cfm (accessed March 2023).
______. 2011. Highway Traffic Noise Analysis and Abatement Policy and Guidance. (FHWA-HEP-10- 025). December. (accessed March 2023).

Federal Transit Administration (FTA). 2018. Transit Noise and Vibration Impact Assessment.

November. https://www.transit.dot.gov/sites/fta.dot.gov/files/docs/researchinnovation/118131/transit-noise-and-vibration-impact-assessment-manual-fta-report-no0123_0.pdf (accessed March 2023).

Harris, C. 1991. Handbook of Acoustical Measurements and Noise Control Third Edition.

Hoover & Keith Inc. 2000. Lecture Notes for Noise Control for Buildings, Manufacturing Plants, Equipment and Products.

References
Noise and Vibration Study 33
Kinsler, Lawrence E. and R. Frey, Austin and B. Coppens, Alan and V. Sanders, James. Fundamentals of Acoustics, 4th Edition. ISBN 0-471-84789-5. Wiley-VCH, December 1999.

Los Angeles, County of. 2009. Airport Land Use Commissions (ALUC). https://planning.lacounty.gov/aluc (accessed April 2023).

Price Noise Control. 2018. QA/QF Acoustical Louvers.
https://www.priceindustries.com/content/uploads/assets/literature/catalogs/catalogpages/section%20m/qaqaf-acoustic-louver-catalog.pdf (accessed April 2023).

Appendix A
Noise Monitoring Data
Short-Term Noise Measurements Data
- Freq Weight : A
- Time Weight : SLOW
- Level Range : 40-100
- Max dB : 69.6 - 2023/03/16 12:09:45
- Level Range : 40-100
- SEL : 89.0
- Leq : 61.3
-
No.s Date Time (dB)
----------------------------------------------------------------------- 1 2023/03/16 12:02:25 66.9
2 2023/03/16 12:02:28 64.6
3 2023/03/16 12:02:31 61.9
4 2023/03/16 12:02:34 61.3
5 2023/03/16 12:02:37 61.0
6 2023/03/16 12:02:40 63.3
7 2023/03/16 12:02:43 62.2
8 2023/03/16 12:02:46 64.4
9 2023/03/16 12:02:49 63.4
10 2023/03/16 12:02:52 63.0
11 2023/03/16 12:02:55 62.4
12 2023/03/16 12:02:58 62.1
13 2023/03/16 12:03:01 64.6
14 2023/03/16 12:03:04 62.9
15 2023/03/16 12:03:07 67.8
16 2023/03/16 12:03:10 64.6
17 2023/03/16 12:03:13 61.6
18 2023/03/16 12:03:16 60.4
19 2023/03/16 12:03:19 59.8
20 2023/03/16 12:03:22 59.3
21 2023/03/16 12:03:25 60.0
22 2023/03/16 12:03:28 59.4
23 2023/03/16 12:03:31 59.8
24 2023/03/16 12:03:34 60.4
25 2023/03/16 12:03:37 59.4
26 2023/03/16 12:03:40 60.3
27 2023/03/16 12:03:43 60.0
28 2023/03/16 12:03:46 60.6
29 2023/03/16 12:03:49 60.2
30 2023/03/16 12:03:52 63.6
31 2023/03/16 12:03:55 60.3
32 2023/03/16 12:03:58 61.7
33 2023/03/16 12:04:01 62.3
34 2023/03/16 12:04:04 61.3
35 2023/03/16 12:04:07 61.4
36 2023/03/16 12:04:10 62.9
37 2023/03/16 12:04:13 62.4
38 2023/03/16 12:04:16 60.0
39 2023/03/16 12:04:19 59.9
40 2023/03/16 12:04:22 59.6
41 2023/03/16 12:04:25 60.8
42 2023/03/16 12:04:28 61.0
43 2023/03/16 12:04:31 61.0
44 2023/03/16 12:04:34 61.0
45 2023/03/16 12:04:37 60.4
46 2023/03/16 12:04:40 62.2
47 2023/03/16 12:04:43 61.5
48 2023/03/16 12:04:46 62.9
49 2023/03/16 12:04:49 60.9
50 2023/03/16 12:04:52 61.7
51 2023/03/16 12:04:55 61.5
52 2023/03/16 12:04:58 61.6
53 2023/03/16 12:05:01 60.7
54 2023/03/16 12:05:04 60.8
55 2023/03/16 12:05:07 63.8
56 2023/03/16 12:05:10 65.3
57 2023/03/16 12:05:13 63.4
58 2023/03/16 12:05:16 61.3
59 2023/03/16 12:05:19 60.5
60 2023/03/16 12:05:22 60.8
61 2023/03/16 12:05:25 59.0
62 2023/03/16 12:05:28 59.6
63 2023/03/16 12:05:31 59.9
64 2023/03/16 12:05:34 59.8
65 2023/03/16 12:05:37 61.2
66 2023/03/16 12:05:40 60.1
67 2023/03/16 12:05:43 61.6
68 2023/03/16 12:05:46 61.8
69 2023/03/16 12:05:49 61.8
70 2023/03/16 12:05:52 60.1
71 2023/03/16 12:05:55 60.8
72 2023/03/16 12:05:58 60.2
73 2023/03/16 12:06:01 60.8
74 2023/03/16 12:06:04 61.0
75 2023/03/16 12:06:07 62.1
76 2023/03/16 12:06:10 62.2
77 2023/03/16 12:06:13 62.1
78 2023/03/16 12:06:16 62.0
79 2023/03/16 12:06:19 64.0
80 2023/03/16 12:06:22 62.2
81 2023/03/16 12:06:25 60.1
82 2023/03/16 12:06:28 61.6
83 2023/03/16 12:06:31 63.2
84 2023/03/16 12:06:34 61.3
ST-1
85 2023/03/16 12:06:37 62.6
86 2023/03/16 12:06:40 62.5
87 2023/03/16 12:06:43 61.3
88 2023/03/16 12:06:46 61.9
89 2023/03/16 12:06:49 62.1
90 2023/03/16 12:06:52 61.1
91 2023/03/16 12:06:55 61.0
92 2023/03/16 12:06:58 61.2
93 2023/03/16 12:07:01 60.4
94 2023/03/16 12:07:04 60.5
95 2023/03/16 12:07:07 60.5
96 2023/03/16 12:07:10 60.9
97 2023/03/16 12:07:13 61.6
98 2023/03/16 12:07:16 60.0
99 2023/03/16 12:07:19 61.4
100 2023/03/16 12:07:22 60.9
101 2023/03/16 12:07:25 59.8
102 2023/03/16 12:07:28 60.5
103 2023/03/16 12:07:31 61.2
104 2023/03/16 12:07:34 61.0
105 2023/03/16 12:07:37 62.4
106 2023/03/16 12:07:40 63.2
107 2023/03/16 12:07:43 66.1
108 2023/03/16 12:07:46 64.8
109 2023/03/16 12:07:49 63.1
110 2023/03/16 12:07:52 62.1
111 2023/03/16 12:07:55 60.8
112 2023/03/16 12:07:58 60.5
113 2023/03/16 12:08:01 60.6
114 2023/03/16 12:08:04 60.5
115 2023/03/16 12:08:07 60.0
116 2023/03/16 12:08:10 59.5
117 2023/03/16 12:08:13 59.9
118 2023/03/16 12:08:16 61.5
119 2023/03/16 12:08:19 62.4
120 2023/03/16 12:08:22 62.8
121 2023/03/16 12:08:25 62.4
122 2023/03/16 12:08:28 61.9
123 2023/03/16 12:08:31 59.2
124 2023/03/16 12:08:34 58.7
125 2023/03/16 12:08:37 59.6
126 2023/03/16 12:08:40 59.2
127 2023/03/16 12:08:43 60.6
128 2023/03/16 12:08:46 60.6
129 2023/03/16 12:08:49 59.9
130 2023/03/16 12:08:52 60.4
131 2023/03/16 12:08:55 60.6
132 2023/03/16 12:08:58 60.1
133 2023/03/16 12:09:01 60.0
134 2023/03/16 12:09:04 59.9
135 2023/03/16 12:09:07 59.1
136 2023/03/16 12:09:10 59.9
137 2023/03/16 12:09:13 59.7
138 2023/03/16 12:09:16 58.8
139 2023/03/16 12:09:19 59.7
140 2023/03/16 12:09:22 59.8
141 2023/03/16 12:09:25 58.9
142 2023/03/16 12:09:28 58.6
143 2023/03/16 12:09:31 58.4
144 2023/03/16 12:09:34 57.8
145 2023/03/16 12:09:37 58.7
146 2023/03/16 12:09:40 62.3
147 2023/03/16 12:09:43 66.6
148 2023/03/16 12:09:46 60.5
149 2023/03/16 12:09:49 59.0
150 2023/03/16 12:09:52 59.1
151 2023/03/16 12:09:55 58.2
152 2023/03/16 12:09:58 58.4
153 2023/03/16 12:10:01 59.0
154 2023/03/16 12:10:04 58.7
155 2023/03/16 12:10:07 58.4
156 2023/03/16 12:10:10 59.1
157 2023/03/16 12:10:13 58.9
158 2023/03/16 12:10:16 60.1
159 2023/03/16 12:10:19 60.1
160 2023/03/16 12:10:22 63.7
161 2023/03/16 12:10:25 62.9
162 2023/03/16 12:10:28 61.0
163 2023/03/16 12:10:31 60.9
164 2023/03/16 12:10:34 61.4
165 2023/03/16 12:10:37 60.7
166 2023/03/16 12:10:40 62.5
167 2023/03/16 12:10:43 61.4
168 2023/03/16 12:10:46 61.5
169 2023/03/16 12:10:49 63.7
170 2023/03/16 12:10:52 62.4
171 2023/03/16 12:10:55 62.5
172 2023/03/16 12:10:58 61.6
173 2023/03/16 12:11:01 61.5
174 2023/03/16 12:11:04 61.0
175 2023/03/16 12:11:07 60.4
176 2023/03/16 12:11:10 61.4
177 2023/03/16 12:11:13 61.6
178 2023/03/16 12:11:16 61.0
179 2023/03/16 12:11:19 60.3
180 2023/03/16 12:11:22 60.7
181 2023/03/16 12:11:25 60.0
182 2023/03/16 12:11:28 60.3
183 2023/03/16 12:11:31 59.9
184 2023/03/16 12:11:34 59.6
185 2023/03/16 12:11:37 58.9
186 2023/03/16 12:11:40 59.4
187 2023/03/16 12:11:43 58.9
188 2023/03/16 12:11:46 60.1
189 2023/03/16 12:11:49 59.1
190 2023/03/16 12:11:52 60.5
191 2023/03/16 12:11:55 60.8
192 2023/03/16 12:11:58 60.0
193 2023/03/16 12:12:01 60.6
194 2023/03/16 12:12:04 59.2
195 2023/03/16 12:12:07 59.6
196 2023/03/16 12:12:10 60.9
197 2023/03/16 12:12:13 61.3
198 2023/03/16 12:12:16 61.7
199 2023/03/16 12:12:19 59.2
200 2023/03/16 12:12:22 61.8
- Freq Weight : A
- Time Weight : SLOW
- Level Range : 40-100
- Max dB : 79.9 - 2023/03/16 11:53:52
- Level Range : 40-100
- SEL : 93.6
- Leq : 65.9
-
No.s Date Time (dB)
----------------------------------------------------------------------- 1 2023/03/16 11:49:58 54.6
2 2023/03/16 11:50:01 55.0
3 2023/03/16 11:50:04 55.1
4 2023/03/16 11:50:07 54.7
5 2023/03/16 11:50:10 55.3
6 2023/03/16 11:50:13 55.8
7 2023/03/16 11:50:16 58.2
8 2023/03/16 11:50:19 61.6
9 2023/03/16 11:50:22 61.2
10 2023/03/16 11:50:25 56.8
11 2023/03/16 11:50:28 56.5
12 2023/03/16 11:50:31 60.2
13 2023/03/16 11:50:34 59.6
14 2023/03/16 11:50:37 68.7
15 2023/03/16 11:50:40 63.4
16 2023/03/16 11:50:43 60.4
17 2023/03/16 11:50:46 60.7
18 2023/03/16 11:50:49 56.2
19 2023/03/16 11:50:52 55.4
20 2023/03/16 11:50:55 56.3
21 2023/03/16 11:50:58 56.7
22 2023/03/16 11:51:01 57.3
23 2023/03/16 11:51:04 59.0
24 2023/03/16 11:51:07 56.9
25 2023/03/16 11:51:10 55.2
26 2023/03/16 11:51:13 54.7
27 2023/03/16 11:51:16 54.4
28 2023/03/16 11:51:19 64.2
29 2023/03/16 11:51:22 57.1
30 2023/03/16 11:51:25 54.1
31 2023/03/16 11:51:28 55.5
32 2023/03/16 11:51:31 64.1
33 2023/03/16 11:51:34 64.9
34 2023/03/16 11:51:37 59.4
35 2023/03/16 11:51:40 55.6
36 2023/03/16 11:51:43 55.7
37 2023/03/16 11:51:46 53.8
38 2023/03/16 11:51:49 53.7
39 2023/03/16 11:51:52 55.1
40 2023/03/16 11:51:55 55.9
41 2023/03/16 11:51:58 68.8
42 2023/03/16 11:52:01 60.2
43 2023/03/16 11:52:04 62.9
44 2023/03/16 11:52:07 56.2
45 2023/03/16 11:52:10 53.0
46 2023/03/16 11:52:13 53.6
47 2023/03/16 11:52:16 57.7
48 2023/03/16 11:52:19 60.7
49 2023/03/16 11:52:22 58.1
50 2023/03/16 11:52:25 53.7
51 2023/03/16 11:52:28 56.4
52 2023/03/16 11:52:31 59.9
53 2023/03/16 11:52:34 61.1
54 2023/03/16 11:52:37 56.7
55 2023/03/16 11:52:40 61.9
56 2023/03/16 11:52:43 56.7
57 2023/03/16 11:52:46 56.3
58 2023/03/16 11:52:49 56.2
59 2023/03/16 11:52:52 56.2
60 2023/03/16 11:52:55 59.1
61 2023/03/16 11:52:58 55.2
62 2023/03/16 11:53:01 54.4
63 2023/03/16 11:53:04 55.1
64 2023/03/16 11:53:07 54.3
65 2023/03/16 11:53:10 53.5
66 2023/03/16 11:53:13 53.5
67 2023/03/16 11:53:16 53.1
68 2023/03/16 11:53:19 52.9
69 2023/03/16 11:53:22 53.3
70 2023/03/16 11:53:25 57.0
71 2023/03/16 11:53:28 63.3
72 2023/03/16 11:53:31 68.5
73 2023/03/16 11:53:34 74.7
74 2023/03/16 11:53:37 77.8
75 2023/03/16 11:53:40 75.3
76 2023/03/16 11:53:43 75.9
77 2023/03/16 11:53:46 75.4
78 2023/03/16 11:53:49 71.2
79 2023/03/16 11:53:52 78.7
80 2023/03/16 11:53:55 78.2
81 2023/03/16 11:53:58 75.8
82 2023/03/16 11:54:01 76.6
83 2023/03/16 11:54:04 74.0
84 2023/03/16 11:54:07 74.3
ST-2
85 2023/03/16 11:54:10 71.6
86 2023/03/16 11:54:13 71.4
87 2023/03/16 11:54:16 68.6
88 2023/03/16 11:54:19 68.9
89 2023/03/16 11:54:22 70.4
90 2023/03/16 11:54:25 69.6
91 2023/03/16 11:54:28 68.3
92 2023/03/16 11:54:31 68.9
93 2023/03/16 11:54:34 68.4
94 2023/03/16 11:54:37 68.4
95 2023/03/16 11:54:40 69.7
96 2023/03/16 11:54:43 68.5
97 2023/03/16 11:54:46 68.8
98 2023/03/16 11:54:49 71.0
99 2023/03/16 11:54:52 63.4
100 2023/03/16 11:54:55 60.6
101 2023/03/16 11:54:58 60.5
102 2023/03/16 11:55:01 60.3
103 2023/03/16 11:55:04 59.8
104 2023/03/16 11:55:07 66.8
105 2023/03/16 11:55:10 62.5
106 2023/03/16 11:55:13 57.8
107 2023/03/16 11:55:16 60.4
108 2023/03/16 11:55:19 62.0
109 2023/03/16 11:55:22 62.4
110 2023/03/16 11:55:25 61.5
111 2023/03/16 11:55:28 61.3
112 2023/03/16 11:55:31 64.0
113 2023/03/16 11:55:34 62.2
114 2023/03/16 11:55:37 62.9
115 2023/03/16 11:55:40 62.6
116 2023/03/16 11:55:43 57.6
117 2023/03/16 11:55:46 55.6
118 2023/03/16 11:55:49 60.9
119 2023/03/16 11:55:52 62.6
120 2023/03/16 11:55:55 57.2
121 2023/03/16 11:55:58 61.0
122 2023/03/16 11:56:01 58.5
123 2023/03/16 11:56:04 54.7
124 2023/03/16 11:56:07 56.6
125 2023/03/16 11:56:10 54.1
126 2023/03/16 11:56:13 50.5
127 2023/03/16 11:56:16 51.6
128 2023/03/16 11:56:19 51.1
129 2023/03/16 11:56:22 55.9
130 2023/03/16 11:56:25 55.7
131 2023/03/16 11:56:28 54.8
132 2023/03/16 11:56:31 55.0
133 2023/03/16 11:56:34 55.1
134 2023/03/16 11:56:37 56.0
135 2023/03/16 11:56:40 59.8
136 2023/03/16 11:56:43 61.1
137 2023/03/16 11:56:46 58.1
138 2023/03/16 11:56:49 56.7
139 2023/03/16 11:56:52 57.0
140 2023/03/16 11:56:55 58.4
141 2023/03/16 11:56:58 59.1
142 2023/03/16 11:57:01 60.1
143 2023/03/16 11:57:04 54.5
144 2023/03/16 11:57:07 55.3
145 2023/03/16 11:57:10 55.6
146 2023/03/16 11:57:13 56.4
147 2023/03/16 11:57:16 61.8
148 2023/03/16 11:57:19 59.5
149 2023/03/16 11:57:22 54.7
150 2023/03/16 11:57:25 53.0
151 2023/03/16 11:57:28 52.6
152 2023/03/16 11:57:31 52.8
153 2023/03/16 11:57:34 53.8
154 2023/03/16 11:57:37 53.1
155 2023/03/16 11:57:40 54.7
156 2023/03/16 11:57:43 57.3
157 2023/03/16 11:57:46 67.0
158 2023/03/16 11:57:49 66.8
159 2023/03/16 11:57:52 56.8
160 2023/03/16 11:57:55 53.1
161 2023/03/16 11:57:58 55.5
162 2023/03/16 11:58:01 56.3
163 2023/03/16 11:58:04 53.2
164 2023/03/16 11:58:07 53.1
165 2023/03/16 11:58:10 53.4
166 2023/03/16 11:58:13 52.1
167 2023/03/16 11:58:16 53.4
168 2023/03/16 11:58:19 55.0
169 2023/03/16 11:58:22 56.9
170 2023/03/16 11:58:25 58.3
171 2023/03/16 11:58:28 71.7
172 2023/03/16 11:58:31 61.7
173 2023/03/16 11:58:34 54.9
174 2023/03/16 11:58:37 54.4
175 2023/03/16 11:58:40 52.6
176 2023/03/16 11:58:43 54.0
177 2023/03/16 11:58:46 54.9
178 2023/03/16 11:58:49 56.2
179 2023/03/16 11:58:52 56.0
180 2023/03/16 11:58:55 60.6
181 2023/03/16 11:58:58 64.1
182 2023/03/16 11:59:01 63.0
183 2023/03/16 11:59:04 58.1
184 2023/03/16 11:59:07 55.5
185 2023/03/16 11:59:10 54.6
186 2023/03/16 11:59:13 52.3
187 2023/03/16 11:59:16 51.9
188 2023/03/16 11:59:19 52.2
189 2023/03/16 11:59:22 63.2
190 2023/03/16 11:59:25 58.5
191 2023/03/16 11:59:28 59.7
192 2023/03/16 11:59:31 62.8
193 2023/03/16 11:59:34 56.7
194 2023/03/16 11:59:37 53.9
195 2023/03/16 11:59:40 52.6
196 2023/03/16 11:59:43 52.2
197 2023/03/16 11:59:46 53.7
198 2023/03/16 11:59:49 53.7
199 2023/03/16 11:59:52 54.4
200 2023/03/16 11:59:55 66.9
- Freq Weight : A
- Time Weight : SLOW
- Level Range : 40-100
- Max dB : 66.3 - 2023/03/16 12:18:10
- Level Range : 40-100
- SEL : 84.1
- Leq : 56.4
-
No.s Date Time (dB)
----------------------------------------------------------------------- 1 2023/03/16 12:13:37 53.0
2 2023/03/16 12:13:40 54.6
3 2023/03/16 12:13:43 54.8
4 2023/03/16 12:13:46 54.0
5 2023/03/16 12:13:49 55.8
6 2023/03/16 12:13:52 55.9
7 2023/03/16 12:13:55 56.5
8 2023/03/16 12:13:58 56.6
9 2023/03/16 12:14:01 56.2
10 2023/03/16 12:14:04 56.0
11 2023/03/16 12:14:07 56.0
12 2023/03/16 12:14:10 57.2
13 2023/03/16 12:14:13 58.5
14 2023/03/16 12:14:16 57.0
15 2023/03/16 12:14:19 56.3
16 2023/03/16 12:14:22 55.9
17 2023/03/16 12:14:25 52.5
18 2023/03/16 12:14:28 52.3
19 2023/03/16 12:14:31 56.7
20 2023/03/16 12:14:34 57.7
21 2023/03/16 12:14:37 64.2
22 2023/03/16 12:14:40 58.1
23 2023/03/16 12:14:43 55.5
24 2023/03/16 12:14:46 55.4
25 2023/03/16 12:14:49 55.6
26 2023/03/16 12:14:52 55.7
27 2023/03/16 12:14:55 56.1
28 2023/03/16 12:14:58 60.1
29 2023/03/16 12:15:01 59.8
30 2023/03/16 12:15:04 57.0
31 2023/03/16 12:15:07 55.5
32 2023/03/16 12:15:10 56.5
33 2023/03/16 12:15:13 56.2
34 2023/03/16 12:15:16 56.3
35 2023/03/16 12:15:19 56.3
36 2023/03/16 12:15:22 55.1
37 2023/03/16 12:15:25 56.8
38 2023/03/16 12:15:28 54.8
39 2023/03/16 12:15:31 53.7
40 2023/03/16 12:15:34 51.6
41 2023/03/16 12:15:37 52.0
42 2023/03/16 12:15:40 54.2
43 2023/03/16 12:15:43 53.9
44 2023/03/16 12:15:46 54.6
45 2023/03/16 12:15:49 54.7
46 2023/03/16 12:15:52 55.7
47 2023/03/16 12:15:55 56.3
48 2023/03/16 12:15:58 55.9
49 2023/03/16 12:16:01 55.8
50 2023/03/16 12:16:04 56.4
51 2023/03/16 12:16:07 55.6
52 2023/03/16 12:16:10 64.0
53 2023/03/16 12:16:13 59.5
54 2023/03/16 12:16:16 55.7
55 2023/03/16 12:16:19 55.5
56 2023/03/16 12:16:22 54.8
57 2023/03/16 12:16:25 53.8
58 2023/03/16 12:16:28 53.7
59 2023/03/16 12:16:31 55.6
60 2023/03/16 12:16:34 59.7
61 2023/03/16 12:16:37 58.4
62 2023/03/16 12:16:40 58.5
63 2023/03/16 12:16:43 61.1
64 2023/03/16 12:16:46 59.2
65 2023/03/16 12:16:49 58.3
66 2023/03/16 12:16:52 57.8
67 2023/03/16 12:16:55 56.8
68 2023/03/16 12:16:58 57.3
69 2023/03/16 12:17:01 57.1
70 2023/03/16 12:17:04 57.6
71 2023/03/16 12:17:07 56.5
72 2023/03/16 12:17:10 56.6
73 2023/03/16 12:17:13 56.8
74 2023/03/16 12:17:16 56.1
75 2023/03/16 12:17:19 55.4
76 2023/03/16 12:17:22 54.2
77 2023/03/16 12:17:25 54.1
78 2023/03/16 12:17:28 53.6
79 2023/03/16 12:17:31 54.4
80 2023/03/16 12:17:34 54.4
81 2023/03/16 12:17:37 54.6
82 2023/03/16 12:17:40 54.4
83 2023/03/16 12:17:43 56.3
84 2023/03/16 12:17:46 54.3
ST-3
85 2023/03/16 12:17:49 54.3
86 2023/03/16 12:17:52 56.7
87 2023/03/16 12:17:55 57.1
88 2023/03/16 12:17:58 56.4
89 2023/03/16 12:18:01 55.4
90 2023/03/16 12:18:04 56.3
91 2023/03/16 12:18:07 59.9
92 2023/03/16 12:18:10 61.5
93 2023/03/16 12:18:13 58.4
94 2023/03/16 12:18:16 58.0
95 2023/03/16 12:18:19 58.1
96 2023/03/16 12:18:22 58.6
97 2023/03/16 12:18:25 57.3
98 2023/03/16 12:18:28 60.4
99 2023/03/16 12:18:31 56.8
100 2023/03/16 12:18:34 58.7
101 2023/03/16 12:18:37 56.7
102 2023/03/16 12:18:40 59.0
103 2023/03/16 12:18:43 58.0
104 2023/03/16 12:18:46 57.8
105 2023/03/16 12:18:49 56.6
106 2023/03/16 12:18:52 55.5
107 2023/03/16 12:18:55 55.8
108 2023/03/16 12:18:58 56.1
109 2023/03/16 12:19:01 55.9
110 2023/03/16 12:19:04 55.3
111 2023/03/16 12:19:07 56.2
112 2023/03/16 12:19:10 55.3
113 2023/03/16 12:19:13 55.3
114 2023/03/16 12:19:16 54.5
115 2023/03/16 12:19:19 55.2
116 2023/03/16 12:19:22 55.5
117 2023/03/16 12:19:25 57.5
118 2023/03/16 12:19:28 56.9
119 2023/03/16 12:19:31 54.2
120 2023/03/16 12:19:34 52.8
121 2023/03/16 12:19:37 55.5
122 2023/03/16 12:19:40 59.5
123 2023/03/16 12:19:43 57.4
124 2023/03/16 12:19:46 57.0
125 2023/03/16 12:19:49 56.4
126 2023/03/16 12:19:52 55.2
127 2023/03/16 12:19:55 54.9
128 2023/03/16 12:19:58 55.9
129 2023/03/16 12:20:01 55.4
130 2023/03/16 12:20:04 56.1
131 2023/03/16 12:20:07 55.0
132 2023/03/16 12:20:10 55.9
133 2023/03/16 12:20:13 55.6
134 2023/03/16 12:20:16 55.1
135 2023/03/16 12:20:19 54.4
136 2023/03/16 12:20:22 53.6
137 2023/03/16 12:20:25 54.8
138 2023/03/16 12:20:28 54.1
139 2023/03/16 12:20:31 52.7
140 2023/03/16 12:20:34 51.5
141 2023/03/16 12:20:37 51.5
142 2023/03/16 12:20:40 54.3
143 2023/03/16 12:20:43 57.1
144 2023/03/16 12:20:46 57.9
145 2023/03/16 12:20:49 61.2
146 2023/03/16 12:20:52 62.4
147 2023/03/16 12:20:55 61.7
148 2023/03/16 12:20:58 58.4
149 2023/03/16 12:21:01 58.2
150 2023/03/16 12:21:04 56.1
151 2023/03/16 12:21:07 57.4
152 2023/03/16 12:21:10 55.9
153 2023/03/16 12:21:13 55.0
154 2023/03/16 12:21:16 54.7
155 2023/03/16 12:21:19 53.7
156 2023/03/16 12:21:22 54.3
157 2023/03/16 12:21:25 55.5
158 2023/03/16 12:21:28 56.7
159 2023/03/16 12:21:31 55.0
160 2023/03/16 12:21:34 55.4
161 2023/03/16 12:21:37 54.9
162 2023/03/16 12:21:40 55.8
163 2023/03/16 12:21:43 56.4
164 2023/03/16 12:21:46 55.9
165 2023/03/16 12:21:49 56.8
166 2023/03/16 12:21:52 53.2
167 2023/03/16 12:21:55 54.5
168 2023/03/16 12:21:58 58.3
169 2023/03/16 12:22:01 57.0
170 2023/03/16 12:22:04 55.0
171 2023/03/16 12:22:07 54.4
172 2023/03/16 12:22:10 55.6
173 2023/03/16 12:22:13 54.8
174 2023/03/16 12:22:16 54.5
175 2023/03/16 12:22:19 54.5
176 2023/03/16 12:22:22 54.1
177 2023/03/16 12:22:25 55.1
178 2023/03/16 12:22:28 54.1
179 2023/03/16 12:22:31 54.6
180 2023/03/16 12:22:34 53.6
181 2023/03/16 12:22:37 52.2
182 2023/03/16 12:22:40 53.4
183 2023/03/16 12:22:43 54.8
184 2023/03/16 12:22:46 55.1
185 2023/03/16 12:22:49 54.3
186 2023/03/16 12:22:52 55.1
187 2023/03/16 12:22:55 55.5
188 2023/03/16 12:22:58 56.0
189 2023/03/16 12:23:01 56.8
190 2023/03/16 12:23:04 56.5
191 2023/03/16 12:23:07 55.7
192 2023/03/16 12:23:10 54.4
193 2023/03/16 12:23:13 54.2
194 2023/03/16 12:23:16 53.3
195 2023/03/16 12:23:19 53.8
196 2023/03/16 12:23:22 53.0
197 2023/03/16 12:23:25 52.7
198 2023/03/16 12:23:28 53.9
199 2023/03/16 12:23:31 53.7
200 2023/03/16 12:23:34 55.1
- Freq Weight : A
- Time Weight : SLOW
- Level Range : 40-100
- Max dB : 95.6 - 2023/03/16 12:31:44
- Level Range : 40-100
- SEL : 102.4
- Leq : 74.7
-
No.s Date Time (dB)
----------------------------------------------------------------------- 1 2023/03/16 12:27:15 66.4
2 2023/03/16 12:27:18 70.1
3 2023/03/16 12:27:21 67.7
4 2023/03/16 12:27:24 67.7
5 2023/03/16 12:27:27 64.9
6 2023/03/16 12:27:30 66.3
7 2023/03/16 12:27:33 67.8
8 2023/03/16 12:27:36 61.8
9 2023/03/16 12:27:39 54.4
10 2023/03/16 12:27:42 52.5
11 2023/03/16 12:27:45 57.0
12 2023/03/16 12:27:48 60.8
13 2023/03/16 12:27:51 61.0
14 2023/03/16 12:27:54 66.1
15 2023/03/16 12:27:57 67.1
16 2023/03/16 12:28:00 62.0
17 2023/03/16 12:28:03 68.6
18 2023/03/16 12:28:06 66.0
19 2023/03/16 12:28:09 61.7
20 2023/03/16 12:28:12 61.0
21 2023/03/16 12:28:15 65.2
22 2023/03/16 12:28:18 66.2
23 2023/03/16 12:28:21 61.4
24 2023/03/16 12:28:24 59.6
25 2023/03/16 12:28:27 61.2
26 2023/03/16 12:28:30 57.4
27 2023/03/16 12:28:33 59.5
28 2023/03/16 12:28:36 63.1
29 2023/03/16 12:28:39 77.4
30 2023/03/16 12:28:42 69.7
31 2023/03/16 12:28:45 74.8
32 2023/03/16 12:28:48 71.1
33 2023/03/16 12:28:51 73.0
34 2023/03/16 12:28:54 71.7
35 2023/03/16 12:28:57 70.8
36 2023/03/16 12:29:00 69.9
37 2023/03/16 12:29:03 73.6
38 2023/03/16 12:29:06 69.0
39 2023/03/16 12:29:09 72.5
40 2023/03/16 12:29:12 72.0
41 2023/03/16 12:29:15 79.5
42 2023/03/16 12:29:18 73.7
43 2023/03/16 12:29:21 69.1
44 2023/03/16 12:29:24 68.1
45 2023/03/16 12:29:27 67.8
46 2023/03/16 12:29:30 63.6
47 2023/03/16 12:29:33 68.2
48 2023/03/16 12:29:36 66.2
49 2023/03/16 12:29:39 65.8
50 2023/03/16 12:29:42 65.0
51 2023/03/16 12:29:45 67.5
52 2023/03/16 12:29:48 64.8
53 2023/03/16 12:29:51 64.4
54 2023/03/16 12:29:54 62.2
55 2023/03/16 12:29:57 61.2
56 2023/03/16 12:30:00 60.1
57 2023/03/16 12:30:03 60.5
58 2023/03/16 12:30:06 60.9
59 2023/03/16 12:30:09 63.3
60 2023/03/16 12:30:12 61.4
61 2023/03/16 12:30:15 61.5
62 2023/03/16 12:30:18 61.5
63 2023/03/16 12:30:21 69.1
64 2023/03/16 12:30:24 63.4
65 2023/03/16 12:30:27 59.1
66 2023/03/16 12:30:30 58.8
67 2023/03/16 12:30:33 58.8
68 2023/03/16 12:30:36 57.4
69 2023/03/16 12:30:39 59.3
70 2023/03/16 12:30:42 61.6
71 2023/03/16 12:30:45 63.3
72 2023/03/16 12:30:48 63.9
73 2023/03/16 12:30:51 67.0
74 2023/03/16 12:30:54 68.0
75 2023/03/16 12:30:57 71.7
76 2023/03/16 12:31:00 69.8
77 2023/03/16 12:31:03 69.5
78 2023/03/16 12:31:06 68.4
79 2023/03/16 12:31:09 70.1
80 2023/03/16 12:31:12 69.3
81 2023/03/16 12:31:15 70.1
82 2023/03/16 12:31:18 72.2
83 2023/03/16 12:31:21 70.4
84 2023/03/16 12:31:24 72.0
ST-4
85 2023/03/16 12:31:27 70.2
86 2023/03/16 12:31:30 71.9
87 2023/03/16 12:31:33 72.7
88 2023/03/16 12:31:36 83.0
89 2023/03/16 12:31:39 90.5
90 2023/03/16 12:31:42 95.1
91 2023/03/16 12:31:45 87.4
92 2023/03/16 12:31:48 79.2
93 2023/03/16 12:31:51 72.0
94 2023/03/16 12:31:54 66.4
95 2023/03/16 12:31:57 63.7
96 2023/03/16 12:32:00 61.6
97 2023/03/16 12:32:03 63.5
98 2023/03/16 12:32:06 60.1
99 2023/03/16 12:32:09 59.0
100 2023/03/16 12:32:12 60.8
101 2023/03/16 12:32:15 60.9
102 2023/03/16 12:32:18 62.8
103 2023/03/16 12:32:21 62.8
104 2023/03/16 12:32:24 61.7
105 2023/03/16 12:32:27 62.9
106 2023/03/16 12:32:30 64.4
107 2023/03/16 12:32:33 64.8
108 2023/03/16 12:32:36 69.4
109 2023/03/16 12:32:39 74.7
110 2023/03/16 12:32:42 68.8
111 2023/03/16 12:32:45 67.9
112 2023/03/16 12:32:48 69.3
113 2023/03/16 12:32:51 70.3
114 2023/03/16 12:32:54 71.3
115 2023/03/16 12:32:57 70.0
116 2023/03/16 12:33:00 70.4
117 2023/03/16 12:33:03 74.5
118 2023/03/16 12:33:06 71.2
119 2023/03/16 12:33:09 70.2
120 2023/03/16 12:33:12 69.8
121 2023/03/16 12:33:15 70.9
122 2023/03/16 12:33:18 67.0
123 2023/03/16 12:33:21 65.7
124 2023/03/16 12:33:24 65.0
125 2023/03/16 12:33:27 66.0
126 2023/03/16 12:33:30 68.5
127 2023/03/16 12:33:33 66.0
128 2023/03/16 12:33:36 67.3
129 2023/03/16 12:33:39 69.5
130 2023/03/16 12:33:42 66.9
131 2023/03/16 12:33:45 66.4
132 2023/03/16 12:33:48 65.2
133 2023/03/16 12:33:51 65.5
134 2023/03/16 12:33:54 62.8
135 2023/03/16 12:33:57 63.2
136 2023/03/16 12:34:00 68.1
137 2023/03/16 12:34:03 67.3
138 2023/03/16 12:34:06 60.9
139 2023/03/16 12:34:09 58.6
140 2023/03/16 12:34:12 67.4
141 2023/03/16 12:34:15 62.7
142 2023/03/16 12:34:18 58.6
143 2023/03/16 12:34:21 58.9
144 2023/03/16 12:34:24 62.0
145 2023/03/16 12:34:27 61.3
146 2023/03/16 12:34:30 62.7
147 2023/03/16 12:34:33 59.9
148 2023/03/16 12:34:36 62.2
149 2023/03/16 12:34:39 68.1
150 2023/03/16 12:34:42 66.4
151 2023/03/16 12:34:45 65.6
152 2023/03/16 12:34:48 65.0
153 2023/03/16 12:34:51 64.4
154 2023/03/16 12:34:54 66.8
155 2023/03/16 12:34:57 68.9
156 2023/03/16 12:35:00 69.3
157 2023/03/16 12:35:03 70.8
158 2023/03/16 12:35:06 72.5
159 2023/03/16 12:35:09 72.0
160 2023/03/16 12:35:12 72.3
161 2023/03/16 12:35:15 70.5
162 2023/03/16 12:35:18 69.9
163 2023/03/16 12:35:21 69.5
164 2023/03/16 12:35:24 69.7
165 2023/03/16 12:35:27 71.6
166 2023/03/16 12:35:30 71.8
167 2023/03/16 12:35:33 67.0
168 2023/03/16 12:35:36 62.9
169 2023/03/16 12:35:39 64.9
170 2023/03/16 12:35:42 72.2
171 2023/03/16 12:35:45 68.5
172 2023/03/16 12:35:48 73.1
173 2023/03/16 12:35:51 66.9
174 2023/03/16 12:35:54 67.3
175 2023/03/16 12:35:57 66.1
176 2023/03/16 12:36:00 63.6
177 2023/03/16 12:36:03 62.5
178 2023/03/16 12:36:06 62.5
179 2023/03/16 12:36:09 63.9
180 2023/03/16 12:36:12 62.2
181 2023/03/16 12:36:15 62.6
182 2023/03/16 12:36:18 63.9
183 2023/03/16 12:36:21 66.0
184 2023/03/16 12:36:24 63.4
185 2023/03/16 12:36:27 63.5
186 2023/03/16 12:36:30 63.9
187 2023/03/16 12:36:33 64.4
188 2023/03/16 12:36:36 65.7
189 2023/03/16 12:36:39 69.3
190 2023/03/16 12:36:42 70.6
191 2023/03/16 12:36:45 70.0
192 2023/03/16 12:36:48 68.8
193 2023/03/16 12:36:51 67.8
194 2023/03/16 12:36:54 68.8
195 2023/03/16 12:36:57 68.4
196 2023/03/16 12:37:00 69.4
197 2023/03/16 12:37:03 68.4
198 2023/03/16 12:37:06 71.7
199 2023/03/16 12:37:09 71.5
200 2023/03/16 12:37:12 70.9
- Freq Weight : A
- Time Weight : SLOW
- Level Range : 40-100
- Max dB : 65.1 - 2023/03/16 12:58:28
- Level Range : 40-100
- SEL : 75.9
- Leq : 48.2
-
No.s Date Time (dB)
----------------------------------------------------------------------- 1 2023/03/16 12:58:21 45.2
2 2023/03/16 12:58:24 47.3
3 2023/03/16 12:58:27 58.3
4 2023/03/16 12:58:30 48.6
5 2023/03/16 12:58:33 46.7
6 2023/03/16 12:58:36 47.1
7 2023/03/16 12:58:39 47.4
8 2023/03/16 12:58:42 47.8
9 2023/03/16 12:58:45 47.3
10 2023/03/16 12:58:48 47.1
11 2023/03/16 12:58:51 46.6
12 2023/03/16 12:58:54 46.3
13 2023/03/16 12:58:57 46.5
14 2023/03/16 12:59:00 46.0
15 2023/03/16 12:59:03 45.9
16 2023/03/16 12:59:06 45.5
17 2023/03/16 12:59:09 46.3
18 2023/03/16 12:59:12 45.2
19 2023/03/16 12:59:15 44.3
20 2023/03/16 12:59:18 45.8
21 2023/03/16 12:59:21 46.1
22 2023/03/16 12:59:24 45.8
23 2023/03/16 12:59:27 45.8
24 2023/03/16 12:59:30 45.1
25 2023/03/16 12:59:33 45.7
26 2023/03/16 12:59:36 46.1
27 2023/03/16 12:59:39 46.6
28 2023/03/16 12:59:42 46.8
29 2023/03/16 12:59:45 46.3
30 2023/03/16 12:59:48 46.3
31 2023/03/16 12:59:51 45.8
32 2023/03/16 12:59:54 45.0
33 2023/03/16 12:59:57 45.1
34 2023/03/16 13:00:00 45.4
35 2023/03/16 13:00:03 46.4
36 2023/03/16 13:00:06 46.6
37 2023/03/16 13:00:09 46.4
38 2023/03/16 13:00:12 46.6
39 2023/03/16 13:00:15 46.2
40 2023/03/16 13:00:18 48.3
41 2023/03/16 13:00:21 47.2
42 2023/03/16 13:00:24 47.1
43 2023/03/16 13:00:27 47.2
44 2023/03/16 13:00:30 45.9
45 2023/03/16 13:00:33 45.8
46 2023/03/16 13:00:36 45.2
47 2023/03/16 13:00:39 45.1
48 2023/03/16 13:00:42 45.5
49 2023/03/16 13:00:45 46.7
50 2023/03/16 13:00:48 46.8
51 2023/03/16 13:00:51 46.3
52 2023/03/16 13:00:54 46.5
53 2023/03/16 13:00:57 47.6
54 2023/03/16 13:01:00 48.3
55 2023/03/16 13:01:03 48.8
56 2023/03/16 13:01:06 47.5
57 2023/03/16 13:01:09 46.7
58 2023/03/16 13:01:12 47.3
59 2023/03/16 13:01:15 47.4
60 2023/03/16 13:01:18 47.4
61 2023/03/16 13:01:21 47.8
62 2023/03/16 13:01:24 47.8
63 2023/03/16 13:01:27 46.9
64 2023/03/16 13:01:30 46.9
65 2023/03/16 13:01:33 47.1
66 2023/03/16 13:01:36 47.4
67 2023/03/16 13:01:39 46.9
68 2023/03/16 13:01:42 48.1
69 2023/03/16 13:01:45 48.2
70 2023/03/16 13:01:48 47.9
71 2023/03/16 13:01:51 47.9
72 2023/03/16 13:01:54 47.2
73 2023/03/16 13:01:57 47.2
74 2023/03/16 13:02:00 49.7
75 2023/03/16 13:02:03 47.7
76 2023/03/16 13:02:06 47.2
77 2023/03/16 13:02:09 46.6
78 2023/03/16 13:02:12 47.9
79 2023/03/16 13:02:15 47.5
80 2023/03/16 13:02:18 47.5
81 2023/03/16 13:02:21 46.7
82 2023/03/16 13:02:24 46.2
83 2023/03/16 13:02:27 46.3
84 2023/03/16 13:02:30 48.2
ST-5
85 2023/03/16 13:02:33 46.1
86 2023/03/16 13:02:36 47.3
87 2023/03/16 13:02:39 47.4
88 2023/03/16 13:02:42 46.5
89 2023/03/16 13:02:45 45.8
90 2023/03/16 13:02:48 46.3
91 2023/03/16 13:02:51 46.2
92 2023/03/16 13:02:54 46.6
93 2023/03/16 13:02:57 47.1
94 2023/03/16 13:03:00 46.4
95 2023/03/16 13:03:03 45.7
96 2023/03/16 13:03:06 46.2
97 2023/03/16 13:03:09 47.7
98 2023/03/16 13:03:12 46.1
99 2023/03/16 13:03:15 45.4
100 2023/03/16 13:03:18 44.9
101 2023/03/16 13:03:21 43.2
102 2023/03/16 13:03:24 42.6
103 2023/03/16 13:03:27 42.6
104 2023/03/16 13:03:30 42.4
105 2023/03/16 13:03:33 44.2
106 2023/03/16 13:03:36 45.1
107 2023/03/16 13:03:39 45.6
108 2023/03/16 13:03:42 46.1
109 2023/03/16 13:03:45 45.9
110 2023/03/16 13:03:48 46.7
111 2023/03/16 13:03:51 47.0
112 2023/03/16 13:03:54 47.8
113 2023/03/16 13:03:57 46.9
114 2023/03/16 13:04:00 47.2
115 2023/03/16 13:04:03 47.0
116 2023/03/16 13:04:06 45.5
117 2023/03/16 13:04:09 45.9
118 2023/03/16 13:04:12 45.8
119 2023/03/16 13:04:15 46.6
120 2023/03/16 13:04:18 46.8
121 2023/03/16 13:04:21 46.1
122 2023/03/16 13:04:24 47.2
123 2023/03/16 13:04:27 46.9
124 2023/03/16 13:04:30 47.3
125 2023/03/16 13:04:33 46.6
126 2023/03/16 13:04:36 45.4
127 2023/03/16 13:04:39 45.2
128 2023/03/16 13:04:42 45.6
129 2023/03/16 13:04:45 46.5
130 2023/03/16 13:04:48 47.3
131 2023/03/16 13:04:51 47.1
132 2023/03/16 13:04:54 45.8
133 2023/03/16 13:04:57 44.5
134 2023/03/16 13:05:00 45.9
135 2023/03/16 13:05:03 48.4
136 2023/03/16 13:05:06 47.7
137 2023/03/16 13:05:09 45.3
138 2023/03/16 13:05:12 44.3
139 2023/03/16 13:05:15 45.4
140 2023/03/16 13:05:18 45.8
141 2023/03/16 13:05:21 47.4
142 2023/03/16 13:05:24 46.7
143 2023/03/16 13:05:27 46.1
144 2023/03/16 13:05:30 44.9
145 2023/03/16 13:05:33 47.5
146 2023/03/16 13:05:36 47.4
147 2023/03/16 13:05:39 47.0
148 2023/03/16 13:05:42 47.9
149 2023/03/16 13:05:45 48.0
150 2023/03/16 13:05:48 45.5
151 2023/03/16 13:05:51 47.5
152 2023/03/16 13:05:54 47.8
153 2023/03/16 13:05:57 48.4
154 2023/03/16 13:06:00 48.2
155 2023/03/16 13:06:03 46.9
156 2023/03/16 13:06:06 46.1
157 2023/03/16 13:06:09 46.2
158 2023/03/16 13:06:12 48.7
159 2023/03/16 13:06:15 48.3
160 2023/03/16 13:06:18 48.2
161 2023/03/16 13:06:21 49.2
162 2023/03/16 13:06:24 48.3
163 2023/03/16 13:06:27 46.2
164 2023/03/16 13:06:30 51.4
165 2023/03/16 13:06:33 53.2
166 2023/03/16 13:06:36 52.9
167 2023/03/16 13:06:39 52.2
168 2023/03/16 13:06:42 52.7
169 2023/03/16 13:06:45 51.7
170 2023/03/16 13:06:48 52.2
171 2023/03/16 13:06:51 52.0
172 2023/03/16 13:06:54 53.6
173 2023/03/16 13:06:57 53.9
174 2023/03/16 13:07:00 53.4
175 2023/03/16 13:07:03 53.0
176 2023/03/16 13:07:06 52.3
177 2023/03/16 13:07:09 53.0
178 2023/03/16 13:07:12 52.1
179 2023/03/16 13:07:15 51.0
180 2023/03/16 13:07:18 49.7
181 2023/03/16 13:07:21 49.0
182 2023/03/16 13:07:24 48.5
183 2023/03/16 13:07:27 49.4
184 2023/03/16 13:07:30 47.0
185 2023/03/16 13:07:33 48.1
186 2023/03/16 13:07:36 47.8
187 2023/03/16 13:07:39 46.3
188 2023/03/16 13:07:42 47.2
189 2023/03/16 13:07:45 47.1
190 2023/03/16 13:07:48 48.7
191 2023/03/16 13:07:51 49.4
192 2023/03/16 13:07:54 47.8
193 2023/03/16 13:07:57 53.3
194 2023/03/16 13:08:00 50.5
195 2023/03/16 13:08:03 49.2
196 2023/03/16 13:08:06 48.5
197 2023/03/16 13:08:09 49.8
198 2023/03/16 13:08:12 48.7
199 2023/03/16 13:08:15 48.2
200 2023/03/16 13:08:18 48.5
- Freq Weight : A
- Time Weight : SLOW
- Level Range : 40-100
- Max dB : 70.1 - 2023/03/16 13:36:23
- Level Range : 40-100
- SEL : 90.4
- Leq : 62.7
-
No.s Date Time (dB)
----------------------------------------------------------------------- 1 2023/03/16 13:35:16 60.3
2 2023/03/16 13:35:19 59.0
3 2023/03/16 13:35:22 60.1
4 2023/03/16 13:35:25 62.4
5 2023/03/16 13:35:28 63.8
6 2023/03/16 13:35:31 60.4
7 2023/03/16 13:35:34 60.9
8 2023/03/16 13:35:37 62.9
9 2023/03/16 13:35:40 66.0
10 2023/03/16 13:35:43 65.4
11 2023/03/16 13:35:46 63.8
12 2023/03/16 13:35:49 62.8
13 2023/03/16 13:35:52 62.4
14 2023/03/16 13:35:55 61.4
15 2023/03/16 13:35:58 56.5
16 2023/03/16 13:36:01 48.7
17 2023/03/16 13:36:04 54.1
18 2023/03/16 13:36:07 52.1
19 2023/03/16 13:36:10 56.3
20 2023/03/16 13:36:13 56.3
21 2023/03/16 13:36:16 51.7
22 2023/03/16 13:36:19 56.9
23 2023/03/16 13:36:22 68.1
24 2023/03/16 13:36:25 68.2
25 2023/03/16 13:36:28 61.4
26 2023/03/16 13:36:31 55.7
27 2023/03/16 13:36:34 56.3
28 2023/03/16 13:36:37 55.3
29 2023/03/16 13:36:40 51.0
30 2023/03/16 13:36:43 47.9
31 2023/03/16 13:36:46 49.2
32 2023/03/16 13:36:49 50.0
33 2023/03/16 13:36:52 48.0
34 2023/03/16 13:36:55 51.1
35 2023/03/16 13:36:58 60.8
36 2023/03/16 13:37:01 59.6
37 2023/03/16 13:37:04 57.4
38 2023/03/16 13:37:07 63.2
39 2023/03/16 13:37:10 63.0
40 2023/03/16 13:37:13 60.9
41 2023/03/16 13:37:16 62.7
42 2023/03/16 13:37:19 63.5
43 2023/03/16 13:37:22 59.1
44 2023/03/16 13:37:25 52.8
45 2023/03/16 13:37:28 56.8
46 2023/03/16 13:37:31 56.2
47 2023/03/16 13:37:34 49.1
48 2023/03/16 13:37:37 48.0
49 2023/03/16 13:37:40 46.2
50 2023/03/16 13:37:43 44.9
51 2023/03/16 13:37:46 44.0
52 2023/03/16 13:37:49 46.8
53 2023/03/16 13:37:52 53.8
54 2023/03/16 13:37:55 59.9
55 2023/03/16 13:37:58 62.9
56 2023/03/16 13:38:01 61.2
57 2023/03/16 13:38:04 57.8
58 2023/03/16 13:38:07 58.1
59 2023/03/16 13:38:10 60.7
60 2023/03/16 13:38:13 66.1
61 2023/03/16 13:38:16 63.5
62 2023/03/16 13:38:19 56.9
63 2023/03/16 13:38:22 58.9
64 2023/03/16 13:38:25 61.3
65 2023/03/16 13:38:28 62.7
66 2023/03/16 13:38:31 63.8
67 2023/03/16 13:38:34 63.3
68 2023/03/16 13:38:37 63.7
69 2023/03/16 13:38:40 69.1
70 2023/03/16 13:38:43 67.0
71 2023/03/16 13:38:46 66.7
72 2023/03/16 13:38:49 66.8
73 2023/03/16 13:38:52 68.4
74 2023/03/16 13:38:55 58.9
75 2023/03/16 13:38:58 51.3
76 2023/03/16 13:39:01 58.8
77 2023/03/16 13:39:04 64.5
78 2023/03/16 13:39:07 66.2
79 2023/03/16 13:39:10 66.3
80 2023/03/16 13:39:13 57.1
81 2023/03/16 13:39:16 63.6
82 2023/03/16 13:39:19 64.7
83 2023/03/16 13:39:22 64.3
84 2023/03/16 13:39:25 64.4
ST-6
85 2023/03/16 13:39:28 65.1
86 2023/03/16 13:39:31 64.7
87 2023/03/16 13:39:34 64.2
88 2023/03/16 13:39:37 64.4
89 2023/03/16 13:39:40 64.4
90 2023/03/16 13:39:43 57.2
91 2023/03/16 13:39:46 50.2
92 2023/03/16 13:39:49 57.2
93 2023/03/16 13:39:52 64.6
94 2023/03/16 13:39:55 65.7
95 2023/03/16 13:39:58 66.1
96 2023/03/16 13:40:01 67.1
97 2023/03/16 13:40:04 66.9
98 2023/03/16 13:40:07 66.5
99 2023/03/16 13:40:10 60.7
100 2023/03/16 13:40:13 52.7
101 2023/03/16 13:40:16 50.0
102 2023/03/16 13:40:19 60.9
103 2023/03/16 13:40:22 66.0
104 2023/03/16 13:40:25 64.6
105 2023/03/16 13:40:28 64.1
106 2023/03/16 13:40:31 65.2
107 2023/03/16 13:40:34 65.2
108 2023/03/16 13:40:37 66.5
109 2023/03/16 13:40:40 65.9
110 2023/03/16 13:40:43 61.8
111 2023/03/16 13:40:46 55.0
112 2023/03/16 13:40:49 64.4
113 2023/03/16 13:40:52 65.9
114 2023/03/16 13:40:55 60.5
115 2023/03/16 13:40:58 65.4
116 2023/03/16 13:41:01 66.9
117 2023/03/16 13:41:04 67.8
118 2023/03/16 13:41:07 57.3
119 2023/03/16 13:41:10 64.6
120 2023/03/16 13:41:13 65.9
121 2023/03/16 13:41:16 64.1
122 2023/03/16 13:41:19 62.9
123 2023/03/16 13:41:22 52.9
124 2023/03/16 13:41:25 62.5
125 2023/03/16 13:41:28 65.5
126 2023/03/16 13:41:31 63.7
127 2023/03/16 13:41:34 66.3
128 2023/03/16 13:41:37 67.2
129 2023/03/16 13:41:40 59.1
130 2023/03/16 13:41:43 62.7
131 2023/03/16 13:41:46 59.9
132 2023/03/16 13:41:49 59.9
133 2023/03/16 13:41:52 55.1
134 2023/03/16 13:41:55 53.0
135 2023/03/16 13:41:58 62.4
136 2023/03/16 13:42:01 65.7
137 2023/03/16 13:42:04 66.9
138 2023/03/16 13:42:07 63.5
139 2023/03/16 13:42:10 55.5
140 2023/03/16 13:42:13 49.7
141 2023/03/16 13:42:16 56.7
142 2023/03/16 13:42:19 63.9
143 2023/03/16 13:42:22 68.3
144 2023/03/16 13:42:25 64.8
145 2023/03/16 13:42:28 62.9
146 2023/03/16 13:42:31 65.5
147 2023/03/16 13:42:34 62.0
148 2023/03/16 13:42:37 53.1
149 2023/03/16 13:42:40 64.9
150 2023/03/16 13:42:43 60.4
151 2023/03/16 13:42:46 65.8
152 2023/03/16 13:42:49 66.2
153 2023/03/16 13:42:52 66.8
154 2023/03/16 13:42:55 60.5
155 2023/03/16 13:42:58 61.4
156 2023/03/16 13:43:01 65.6
157 2023/03/16 13:43:04 58.1
158 2023/03/16 13:43:07 49.1
159 2023/03/16 13:43:10 48.9
160 2023/03/16 13:43:13 49.3
161 2023/03/16 13:43:16 65.2
162 2023/03/16 13:43:19 65.6
163 2023/03/16 13:43:22 64.9
164 2023/03/16 13:43:25 64.8
165 2023/03/16 13:43:28 63.5
166 2023/03/16 13:43:31 61.3
167 2023/03/16 13:43:34 55.9
168 2023/03/16 13:43:37 58.6
169 2023/03/16 13:43:40 60.6
170 2023/03/16 13:43:43 62.9
171 2023/03/16 13:43:46 52.3
172 2023/03/16 13:43:49 47.9
173 2023/03/16 13:43:52 51.7
174 2023/03/16 13:43:55 60.7
175 2023/03/16 13:43:58 61.9
176 2023/03/16 13:44:01 58.9
177 2023/03/16 13:44:04 55.3
178 2023/03/16 13:44:07 63.6
179 2023/03/16 13:44:10 63.9
180 2023/03/16 13:44:13 64.0
181 2023/03/16 13:44:16 63.8
182 2023/03/16 13:44:19 54.0
183 2023/03/16 13:44:22 60.6
184 2023/03/16 13:44:25 63.0
185 2023/03/16 13:44:28 62.3
186 2023/03/16 13:44:31 60.5
187 2023/03/16 13:44:34 60.9
188 2023/03/16 13:44:37 61.3
189 2023/03/16 13:44:40 56.9
190 2023/03/16 13:44:43 60.3
191 2023/03/16 13:44:46 61.7
192 2023/03/16 13:44:49 61.2
193 2023/03/16 13:44:52 57.5
194 2023/03/16 13:44:55 50.4
195 2023/03/16 13:44:58 51.7
196 2023/03/16 13:45:01 52.9
197 2023/03/16 13:45:04 64.0
198 2023/03/16 13:45:07 56.6
199 2023/03/16 13:45:10 56.6
200 2023/03/16 13:45:13 61.9
- Freq Weight : A
- Time Weight : SLOW
- Level Range : 40-100
- Max dB : 78.7 - 2023/03/16 13:17:52
- Level Range : 40-100
- SEL : 85.6
- Leq : 57.9
-
No.s Date Time (dB)
----------------------------------------------------------------------- 1 2023/03/16 13:15:39 50.7
2 2023/03/16 13:15:42 50.2
3 2023/03/16 13:15:45 48.1
4 2023/03/16 13:15:48 48.5
5 2023/03/16 13:15:51 49.8
6 2023/03/16 13:15:54 48.4
7 2023/03/16 13:15:57 48.1
8 2023/03/16 13:16:00 48.8
9 2023/03/16 13:16:03 48.8
10 2023/03/16 13:16:06 48.3
11 2023/03/16 13:16:09 48.1
12 2023/03/16 13:16:12 48.2
13 2023/03/16 13:16:15 47.5
14 2023/03/16 13:16:18 49.0
15 2023/03/16 13:16:21 48.4
16 2023/03/16 13:16:24 51.2
17 2023/03/16 13:16:27 49.8
18 2023/03/16 13:16:30 52.0
19 2023/03/16 13:16:33 50.5
20 2023/03/16 13:16:36 48.3
21 2023/03/16 13:16:39 47.8
22 2023/03/16 13:16:42 47.2
23 2023/03/16 13:16:45 45.9
24 2023/03/16 13:16:48 51.6
25 2023/03/16 13:16:51 50.6
26 2023/03/16 13:16:54 50.3
27 2023/03/16 13:16:57 50.6
28 2023/03/16 13:17:00 50.2
29 2023/03/16 13:17:03 48.8
30 2023/03/16 13:17:06 47.9
31 2023/03/16 13:17:09 51.2
32 2023/03/16 13:17:12 52.9
33 2023/03/16 13:17:15 51.8
34 2023/03/16 13:17:18 49.1
35 2023/03/16 13:17:21 57.6
36 2023/03/16 13:17:24 56.0
37 2023/03/16 13:17:27 54.4
38 2023/03/16 13:17:30 50.7
39 2023/03/16 13:17:33 50.3
40 2023/03/16 13:17:36 54.3
41 2023/03/16 13:17:39 58.7
42 2023/03/16 13:17:42 60.6
43 2023/03/16 13:17:45 77.1
44 2023/03/16 13:17:48 77.1
45 2023/03/16 13:17:51 74.6
46 2023/03/16 13:17:54 63.3
47 2023/03/16 13:17:57 59.7
48 2023/03/16 13:18:00 61.2
49 2023/03/16 13:18:03 61.9
50 2023/03/16 13:18:06 55.0
51 2023/03/16 13:18:09 58.3
52 2023/03/16 13:18:12 54.9
53 2023/03/16 13:18:15 51.2
54 2023/03/16 13:18:18 51.8
55 2023/03/16 13:18:21 53.4
56 2023/03/16 13:18:24 50.3
57 2023/03/16 13:18:27 50.1
58 2023/03/16 13:18:30 48.6
59 2023/03/16 13:18:33 47.9
60 2023/03/16 13:18:36 48.1
61 2023/03/16 13:18:39 49.3
62 2023/03/16 13:18:42 48.3
63 2023/03/16 13:18:45 47.0
64 2023/03/16 13:18:48 46.4
65 2023/03/16 13:18:51 45.8
66 2023/03/16 13:18:54 46.3
67 2023/03/16 13:18:57 46.4
68 2023/03/16 13:19:00 46.3
69 2023/03/16 13:19:03 45.3
70 2023/03/16 13:19:06 45.9
71 2023/03/16 13:19:09 45.3
72 2023/03/16 13:19:12 46.0
73 2023/03/16 13:19:15 46.4
74 2023/03/16 13:19:18 48.0
75 2023/03/16 13:19:21 48.3
76 2023/03/16 13:19:24 49.4
77 2023/03/16 13:19:27 48.9
78 2023/03/16 13:19:30 47.7
79 2023/03/16 13:19:33 47.8
80 2023/03/16 13:19:36 47.6
81 2023/03/16 13:19:39 47.4
82 2023/03/16 13:19:42 47.9
83 2023/03/16 13:19:45 50.3
84 2023/03/16 13:19:48 49.8
ST-7
85 2023/03/16 13:19:51 48.3
86 2023/03/16 13:19:54 48.2
87 2023/03/16 13:19:57 48.4
88 2023/03/16 13:20:00 48.3
89 2023/03/16 13:20:03 48.5
90 2023/03/16 13:20:06 47.8
91 2023/03/16 13:20:09 47.0
92 2023/03/16 13:20:12 46.9
93 2023/03/16 13:20:15 46.4
94 2023/03/16 13:20:18 47.2
95 2023/03/16 13:20:21 46.3
96 2023/03/16 13:20:24 45.9
97 2023/03/16 13:20:27 46.3
98 2023/03/16 13:20:30 47.2
99 2023/03/16 13:20:33 46.7
100 2023/03/16 13:20:36 47.4
101 2023/03/16 13:20:39 47.9
102 2023/03/16 13:20:42 49.9
103 2023/03/16 13:20:45 47.8
104 2023/03/16 13:20:48 47.5
105 2023/03/16 13:20:51 51.5
106 2023/03/16 13:20:54 47.7
107 2023/03/16 13:20:57 46.9
108 2023/03/16 13:21:00 48.5
109 2023/03/16 13:21:03 48.3
110 2023/03/16 13:21:06 47.6
111 2023/03/16 13:21:09 48.3
112 2023/03/16 13:21:12 48.7
113 2023/03/16 13:21:15 48.0
114 2023/03/16 13:21:18 47.8
115 2023/03/16 13:21:21 48.1
116 2023/03/16 13:21:24 48.4
117 2023/03/16 13:21:27 48.1
118 2023/03/16 13:21:30 48.6
119 2023/03/16 13:21:33 47.0
120 2023/03/16 13:21:36 46.4
121 2023/03/16 13:21:39 47.3
122 2023/03/16 13:21:42 47.4
123 2023/03/16 13:21:45 49.9
124 2023/03/16 13:21:48 51.3
125 2023/03/16 13:21:51 49.5
126 2023/03/16 13:21:54 49.2
127 2023/03/16 13:21:57 48.8
128 2023/03/16 13:22:00 47.6
129 2023/03/16 13:22:03 47.3
130 2023/03/16 13:22:06 47.6
131 2023/03/16 13:22:09 47.7
132 2023/03/16 13:22:12 48.3
133 2023/03/16 13:22:15 47.4
134 2023/03/16 13:22:18 47.3
135 2023/03/16 13:22:21 47.3
136 2023/03/16 13:22:24 47.1
137 2023/03/16 13:22:27 47.1
138 2023/03/16 13:22:30 47.7
139 2023/03/16 13:22:33 47.7
140 2023/03/16 13:22:36 49.2
141 2023/03/16 13:22:39 48.4
142 2023/03/16 13:22:42 48.9
143 2023/03/16 13:22:45 49.2
144 2023/03/16 13:22:48 49.6
145 2023/03/16 13:22:51 49.2
146 2023/03/16 13:22:54 49.3
147 2023/03/16 13:22:57 49.7
148 2023/03/16 13:23:00 49.1
149 2023/03/16 13:23:03 48.0
150 2023/03/16 13:23:06 47.7
151 2023/03/16 13:23:09 47.5
152 2023/03/16 13:23:12 47.6
153 2023/03/16 13:23:15 46.7
154 2023/03/16 13:23:18 47.2
155 2023/03/16 13:23:21 46.3
156 2023/03/16 13:23:24 45.7
157 2023/03/16 13:23:27 45.7
158 2023/03/16 13:23:30 46.0
159 2023/03/16 13:23:33 46.1
160 2023/03/16 13:23:36 46.8
161 2023/03/16 13:23:39 46.8
162 2023/03/16 13:23:42 46.7
163 2023/03/16 13:23:45 46.5
164 2023/03/16 13:23:48 46.5
165 2023/03/16 13:23:51 47.8
166 2023/03/16 13:23:54 47.8
167 2023/03/16 13:23:57 47.3
168 2023/03/16 13:24:00 48.4
169 2023/03/16 13:24:03 48.6
170 2023/03/16 13:24:06 49.7
171 2023/03/16 13:24:09 49.1
172 2023/03/16 13:24:12 49.3
173 2023/03/16 13:24:15 49.6
174 2023/03/16 13:24:18 49.3
175 2023/03/16 13:24:21 48.9
176 2023/03/16 13:24:24 47.8
177 2023/03/16 13:24:27 47.7
178 2023/03/16 13:24:30 47.7
179 2023/03/16 13:24:33 48.3
180 2023/03/16 13:24:36 47.3
181 2023/03/16 13:24:39 47.1
182 2023/03/16 13:24:42 47.5
183 2023/03/16 13:24:45 48.0
184 2023/03/16 13:24:48 47.7
185 2023/03/16 13:24:51 47.2
186 2023/03/16 13:24:54 47.4
187 2023/03/16 13:24:57 46.7
188 2023/03/16 13:25:00 46.5
189 2023/03/16 13:25:03 46.6
190 2023/03/16 13:25:06 47.2
191 2023/03/16 13:25:09 46.7
192 2023/03/16 13:25:12 46.8
193 2023/03/16 13:25:15 47.1
194 2023/03/16 13:25:18 46.8
195 2023/03/16 13:25:21 46.8
196 2023/03/16 13:25:24 46.1
197 2023/03/16 13:25:27 46.7
198 2023/03/16 13:25:30 47.4
199 2023/03/16 13:25:33 47.1
200 2023/03/16 13:25:36 47.5
- Freq Weight : A
- Time Weight : SLOW
- Level Range : 40-100
- Max dB : 77.0 - 2023/03/16 12:54:07
- Level Range : 40-100
- SEL : 81.4
- Leq : 53.7
-
No.s Date Time (dB)
----------------------------------------------------------------------- 1 2023/03/16 12:44:28 57.0
2 2023/03/16 12:44:31 56.6
3 2023/03/16 12:44:34 51.6
4 2023/03/16 12:44:37 53.2
5 2023/03/16 12:44:40 52.5
6 2023/03/16 12:44:43 51.6
7 2023/03/16 12:44:46 49.8
8 2023/03/16 12:44:49 49.4
9 2023/03/16 12:44:52 51.0
10 2023/03/16 12:44:55 54.7
11 2023/03/16 12:44:58 53.7
12 2023/03/16 12:45:01 48.6
13 2023/03/16 12:45:04 47.4
14 2023/03/16 12:45:07 48.8
15 2023/03/16 12:45:10 47.8
16 2023/03/16 12:45:13 48.7
17 2023/03/16 12:45:16 49.6
18 2023/03/16 12:45:19 49.1
19 2023/03/16 12:45:22 52.5
20 2023/03/16 12:45:25 53.8
21 2023/03/16 12:45:28 49.8
22 2023/03/16 12:45:31 51.0
23 2023/03/16 12:45:34 54.9
24 2023/03/16 12:45:37 52.5
25 2023/03/16 12:45:40 53.7
26 2023/03/16 12:45:43 53.2
27 2023/03/16 12:45:46 51.2
28 2023/03/16 12:45:49 50.8
29 2023/03/16 12:45:52 52.3
30 2023/03/16 12:45:55 52.7
31 2023/03/16 12:45:58 52.4
32 2023/03/16 12:46:01 55.3
33 2023/03/16 12:46:04 53.7
34 2023/03/16 12:46:07 52.4
35 2023/03/16 12:46:10 49.5
36 2023/03/16 12:46:13 48.8
37 2023/03/16 12:46:16 49.3
38 2023/03/16 12:46:19 48.3
39 2023/03/16 12:46:22 49.9
40 2023/03/16 12:46:25 49.0
41 2023/03/16 12:46:28 48.0
42 2023/03/16 12:46:31 49.0
43 2023/03/16 12:46:34 49.0
44 2023/03/16 12:46:37 51.0
45 2023/03/16 12:46:40 49.1
46 2023/03/16 12:46:43 47.8
47 2023/03/16 12:46:46 48.2
48 2023/03/16 12:46:49 49.1
49 2023/03/16 12:46:52 49.2
50 2023/03/16 12:46:55 50.0
51 2023/03/16 12:46:58 47.5
52 2023/03/16 12:47:01 50.4
53 2023/03/16 12:47:04 55.2
54 2023/03/16 12:47:07 58.4
55 2023/03/16 12:47:10 54.3
56 2023/03/16 12:47:13 48.4
57 2023/03/16 12:47:16 48.8
58 2023/03/16 12:47:19 48.1
59 2023/03/16 12:47:22 49.3
60 2023/03/16 12:47:25 55.2
61 2023/03/16 12:47:28 50.3
62 2023/03/16 12:47:31 52.1
63 2023/03/16 12:47:34 53.2
64 2023/03/16 12:47:37 52.2
65 2023/03/16 12:47:40 50.0
66 2023/03/16 12:47:43 51.9
67 2023/03/16 12:47:46 52.5
68 2023/03/16 12:47:49 53.4
69 2023/03/16 12:47:52 53.5
70 2023/03/16 12:47:55 52.1
71 2023/03/16 12:47:58 51.1
72 2023/03/16 12:48:01 49.3
73 2023/03/16 12:48:04 50.3
74 2023/03/16 12:48:07 50.1
75 2023/03/16 12:48:10 50.4
76 2023/03/16 12:48:13 50.6
77 2023/03/16 12:48:16 50.0
78 2023/03/16 12:48:19 50.7
79 2023/03/16 12:48:22 52.4
80 2023/03/16 12:48:25 50.6
81 2023/03/16 12:48:28 50.3
82 2023/03/16 12:48:31 51.6
83 2023/03/16 12:48:34 50.2
84 2023/03/16 12:48:37 50.3
ST-8
85 2023/03/16 12:48:40 49.8
86 2023/03/16 12:48:43 51.5
87 2023/03/16 12:48:46 54.2
88 2023/03/16 12:48:49 53.7
89 2023/03/16 12:48:52 49.9
90 2023/03/16 12:48:55 48.9
91 2023/03/16 12:48:58 50.2
92 2023/03/16 12:49:01 53.9
93 2023/03/16 12:49:04 53.3
94 2023/03/16 12:49:07 52.3
95 2023/03/16 12:49:10 54.0
96 2023/03/16 12:49:13 52.9
97 2023/03/16 12:49:16 50.4
98 2023/03/16 12:49:19 49.8
99 2023/03/16 12:49:22 48.1
100 2023/03/16 12:49:25 48.6
101 2023/03/16 12:49:28 49.4
102 2023/03/16 12:49:31 49.0
103 2023/03/16 12:49:34 49.3
104 2023/03/16 12:49:37 49.5
105 2023/03/16 12:49:40 50.0
106 2023/03/16 12:49:43 49.0
107 2023/03/16 12:49:46 51.4
108 2023/03/16 12:49:49 49.0
109 2023/03/16 12:49:52 48.1
110 2023/03/16 12:49:55 49.4
111 2023/03/16 12:49:58 51.7
112 2023/03/16 12:50:01 52.8
113 2023/03/16 12:50:04 49.7
114 2023/03/16 12:50:07 50.8
115 2023/03/16 12:50:10 53.0
116 2023/03/16 12:50:13 52.3
117 2023/03/16 12:50:16 49.9
118 2023/03/16 12:50:19 48.8
119 2023/03/16 12:50:22 48.1
120 2023/03/16 12:50:25 46.6
121 2023/03/16 12:50:28 48.6
122 2023/03/16 12:50:31 48.3
123 2023/03/16 12:50:34 47.5
124 2023/03/16 12:50:37 48.7
125 2023/03/16 12:50:40 48.1
126 2023/03/16 12:50:43 48.6
127 2023/03/16 12:50:46 51.5
128 2023/03/16 12:50:49 51.7
129 2023/03/16 12:50:52 50.8
130 2023/03/16 12:50:55 48.1
131 2023/03/16 12:50:58 48.8
132 2023/03/16 12:51:01 49.7
133 2023/03/16 12:51:04 49.4
134 2023/03/16 12:51:07 47.7
135 2023/03/16 12:51:10 47.7
136 2023/03/16 12:51:13 50.1
137 2023/03/16 12:51:16 50.8
138 2023/03/16 12:51:19 51.5
139 2023/03/16 12:51:22 53.3
140 2023/03/16 12:51:25 49.7
141 2023/03/16 12:51:28 51.1
142 2023/03/16 12:51:31 48.3
143 2023/03/16 12:51:34 51.3
144 2023/03/16 12:51:37 49.1
145 2023/03/16 12:51:40 52.2
146 2023/03/16 12:51:43 51.6
147 2023/03/16 12:51:46 49.2
148 2023/03/16 12:51:49 48.4
149 2023/03/16 12:51:52 51.2
150 2023/03/16 12:51:55 54.2
151 2023/03/16 12:51:58 51.5
152 2023/03/16 12:52:01 50.3
153 2023/03/16 12:52:04 50.0
154 2023/03/16 12:52:07 50.3
155 2023/03/16 12:52:10 50.8
156 2023/03/16 12:52:13 51.1
157 2023/03/16 12:52:16 51.7
158 2023/03/16 12:52:19 52.2
159 2023/03/16 12:52:22 50.0
160 2023/03/16 12:52:25 49.7
161 2023/03/16 12:52:28 49.0
162 2023/03/16 12:52:31 49.5
163 2023/03/16 12:52:34 49.8
164 2023/03/16 12:52:37 51.6
165 2023/03/16 12:52:40 56.0
166 2023/03/16 12:52:43 53.6
167 2023/03/16 12:52:46 51.3
168 2023/03/16 12:52:49 52.8
169 2023/03/16 12:52:52 50.8
170 2023/03/16 12:52:55 49.8
171 2023/03/16 12:52:58 48.8
172 2023/03/16 12:53:01 48.1
173 2023/03/16 12:53:04 50.1
174 2023/03/16 12:53:07 50.1
175 2023/03/16 12:53:10 51.0
176 2023/03/16 12:53:13 48.9
177 2023/03/16 12:53:16 49.1
178 2023/03/16 12:53:19 49.1
179 2023/03/16 12:53:22 49.9
180 2023/03/16 12:53:25 49.1
181 2023/03/16 12:53:28 47.3
182 2023/03/16 12:53:31 47.8
183 2023/03/16 12:53:34 48.3
184 2023/03/16 12:53:37 49.5
185 2023/03/16 12:53:40 48.9
186 2023/03/16 12:53:43 49.2
187 2023/03/16 12:53:46 52.0
188 2023/03/16 12:53:49 51.0
189 2023/03/16 12:53:52 50.2
190 2023/03/16 12:53:55 49.4
191 2023/03/16 12:53:58 54.4
192 2023/03/16 12:54:01 58.3
193 2023/03/16 12:54:04 51.6
194 2023/03/16 12:54:07 65.7
195 2023/03/16 12:54:10 55.7
196 2023/03/16 12:54:13 51.0
197 2023/03/16 12:54:16 50.8
198 2023/03/16 12:54:19 50.4
199 2023/03/16 12:54:22 49.6
200 2023/03/16 12:54:25 48.6

Long-Term Noise Measurements Data
LT-1
- Freq Weight : A
- Time Weight : SLOW
- Level Range : 40-100
- Max dB : 92.0 - 2023/03/23 11:56:39
- Level Range : 40-100
- SEL : 119.3
- Leq : 61.7
-
No.s Date Time (dB)
----------------------------------------------------------------------- 1 2023/03/23 07:20:06 65.3
2 2023/03/23 07:24:06 61.8
3 2023/03/23 07:28:06 62.3
4 2023/03/23 07:32:06 64.0
5 2023/03/23 07:36:06 66.7
6 2023/03/23 07:40:06 61.8
7 2023/03/23 07:44:06 63.5
8 2023/03/23 07:48:06 64.0
9 2023/03/23 07:52:06 69.5
10 2023/03/23 07:56:06 63.6
11 2023/03/23 08:00:06 64.9
12 2023/03/23 08:04:06 64.9
13 2023/03/23 08:08:06 63.7
14 2023/03/23 08:12:06 67.7
15 2023/03/23 08:16:06 63.3
16 2023/03/23 08:20:06 63.3
17 2023/03/23 08:24:06 64.3
18 2023/03/23 08:28:06 64.2
19 2023/03/23 08:32:06 64.3
20 2023/03/23 08:36:06 64.3
21 2023/03/23 08:40:06 66.3
22 2023/03/23 08:44:06 62.5
23 2023/03/23 08:48:06 63.7
24 2023/03/23 08:52:06 64.2
25 2023/03/23 08:56:06 67.2
26 2023/03/23 09:00:06 65.5
27 2023/03/23 09:04:06 63.7
28 2023/03/23 09:08:06 63.9
29 2023/03/23 09:12:06 64.5
30 2023/03/23 09:16:06 62.8
31 2023/03/23 09:20:06 64.5
32 2023/03/23 09:24:06 64.9
33 2023/03/23 09:28:06 63.5
34 2023/03/23 09:32:06 63.4
35 2023/03/23 09:36:06 65.3
36 2023/03/23 09:40:06 63.8
37 2023/03/23 09:44:06 63.8
38 2023/03/23 09:48:06 63.6
39 2023/03/23 09:52:06 63.3
40 2023/03/23 09:56:06 65.9
41 2023/03/23 10:00:06 62.5
42 2023/03/23 10:04:06 66.3
43 2023/03/23 10:08:06 61.3
44 2023/03/23 10:12:06 58.6
45 2023/03/23 10:16:06 63.4
46 2023/03/23 10:20:06 62.8
47 2023/03/23 10:24:06 62.4
48 2023/03/23 10:28:06 62.9
49 2023/03/23 10:32:06 63.5
50 2023/03/23 10:36:06 63.3
51 2023/03/23 10:40:06 66.9
52 2023/03/23 10:44:06 58.7
53 2023/03/23 10:48:06 55.1
54 2023/03/23 10:52:06 61.7
55 2023/03/23 10:56:06 64.5
56 2023/03/23 11:00:06 61.6
57 2023/03/23 11:04:06 69.0
58 2023/03/23 11:08:06 63.0
59 2023/03/23 11:12:06 63.1
60 2023/03/23 11:16:06 63.7
61 2023/03/23 11:20:06 60.2
62 2023/03/23 11:24:06 61.6
63 2023/03/23 11:28:06 59.2
64 2023/03/23 11:32:06 60.3
65 2023/03/23 11:36:06 62.7
66 2023/03/23 11:40:06 60.5
67 2023/03/23 11:44:06 63.7
68 2023/03/23 11:48:06 62.1
69 2023/03/23 11:52:06 60.0
70 2023/03/23 11:56:06 59.7
71 2023/03/23 12:00:06 59.4
72 2023/03/23 12:04:06 61.4
73 2023/03/23 12:08:06 58.3
74 2023/03/23 12:12:06 55.5
75 2023/03/23 12:16:06 59.3
76 2023/03/23 12:20:06 60.3
77 2023/03/23 12:24:06 56.5
78 2023/03/23 12:28:06 62.1
79 2023/03/23 12:32:06 58.3
80 2023/03/23 12:36:06 60.5
81 2023/03/23 12:40:06 62.2
82 2023/03/23 12:44:06 59.0
83 2023/03/23 12:48:06 61.8
84 2023/03/23 12:52:06 67.7
85 2023/03/23 12:56:06 69.4
86 2023/03/23 13:00:06 61.9
87 2023/03/23 13:04:06 57.3
88 2023/03/23 13:08:06 59.2
89 2023/03/23 13:12:06 64.5
90 2023/03/23 13:16:06 66.9
91 2023/03/23 13:20:06 63.8
92 2023/03/23 13:24:06 61.5
93 2023/03/23 13:28:06 62.8
94 2023/03/23 13:32:06 59.1
95 2023/03/23 13:36:06 57.9
96 2023/03/23 13:40:06 59.8
97 2023/03/23 13:44:06 64.7
98 2023/03/23 13:48:06 59.6
99 2023/03/23 13:52:06 58.8
100 2023/03/23 13:56:06 57.2
101 2023/03/23 14:00:06 61.4
102 2023/03/23 14:04:06 60.8
103 2023/03/23 14:08:06 58.2
104 2023/03/23 14:12:06 61.3
105 2023/03/23 14:16:06 60.0
106 2023/03/23 14:20:06 66.1
107 2023/03/23 14:24:06 63.9
108 2023/03/23 14:28:06 62.2
109 2023/03/23 14:32:06 64.1
110 2023/03/23 14:36:06 64.9
111 2023/03/23 14:40:06 63.6
112 2023/03/23 14:44:06 59.8
113 2023/03/23 14:48:06 55.8
114 2023/03/23 14:52:06 56.2
115 2023/03/23 14:56:06 62.2
116 2023/03/23 15:00:06 58.1
117 2023/03/23 15:04:06 57.2
118 2023/03/23 15:08:06 59.1
119 2023/03/23 15:12:06 60.4
120 2023/03/23 15:16:06 63.4
121 2023/03/23 15:20:06 60.0
122 2023/03/23 15:24:06 55.8
123 2023/03/23 15:28:06 58.5
124 2023/03/23 15:32:06 56.0
125 2023/03/23 15:36:06 63.4
126 2023/03/23 15:40:06 59.7
127 2023/03/23 15:44:06 66.3
128 2023/03/23 15:48:06 71.6
129 2023/03/23 15:52:06 62.9
130 2023/03/23 15:56:06 61.3
131 2023/03/23 16:00:06 59.7
132 2023/03/23 16:04:06 56.4
133 2023/03/23 16:08:06 66.6
134 2023/03/23 16:12:06 56.1
135 2023/03/23 16:16:06 58.5
136 2023/03/23 16:20:06 59.7
137 2023/03/23 16:24:06 62.8
138 2023/03/23 16:28:06 62.2
139 2023/03/23 16:32:06 59.5
140 2023/03/23 16:36:06 60.9
141 2023/03/23 16:40:06 59.2
142 2023/03/23 16:44:06 69.0
143 2023/03/23 16:48:06 59.2
144 2023/03/23 16:52:06 60.3
145 2023/03/23 16:56:06 60.6
146 2023/03/23 17:00:06 60.2
147 2023/03/23 17:04:06 61.6
148 2023/03/23 17:08:06 65.9
149 2023/03/23 17:12:06 59.0
150 2023/03/23 17:16:06 57.6
151 2023/03/23 17:20:06 56.9
152 2023/03/23 17:24:06 54.8
153 2023/03/23 17:28:06 59.8
154 2023/03/23 17:32:06 63.9
155 2023/03/23 17:36:06 59.5
156 2023/03/23 17:40:06 61.5
157 2023/03/23 17:44:06 59.1
158 2023/03/23 17:48:06 60.8
159 2023/03/23 17:52:06 58.9
160 2023/03/23 17:56:06 60.8
161 2023/03/23 18:00:06 63.6
162 2023/03/23 18:04:06 56.9
163 2023/03/23 18:08:06 62.9
164 2023/03/23 18:12:06 65.8
165 2023/03/23 18:16:06 58.9
166 2023/03/23 18:20:06 58.8
167 2023/03/23 18:24:06 56.6
168 2023/03/23 18:28:06 57.7
169 2023/03/23 18:32:06 58.0
170 2023/03/23 18:36:06 61.7
171 2023/03/23 18:40:06 54.9
172 2023/03/23 18:44:06 59.5
173 2023/03/23 18:48:06 59.6
174 2023/03/23 18:52:06 61.5
175 2023/03/23 18:56:06 60.5
176 2023/03/23 19:00:06 61.1
177 2023/03/23 19:04:06 61.7
178 2023/03/23 19:08:06 64.6
179 2023/03/23 19:12:06 62.0
180 2023/03/23 19:16:06 60.5
181 2023/03/23 19:20:06 64.1
182 2023/03/23 19:24:06 61.2
183 2023/03/23 19:28:06 62.8
184 2023/03/23 19:32:06 63.0
185 2023/03/23 19:36:06 62.1
186 2023/03/23 19:40:06 61.4
187 2023/03/23 19:44:06 61.7
188 2023/03/23 19:48:06 61.7
189 2023/03/23 19:52:06 60.3
190 2023/03/23 19:56:06 60.1
191 2023/03/23 20:00:06 58.7
192 2023/03/23 20:04:06 62.8
193 2023/03/23 20:08:06 60.4
194 2023/03/23 20:12:06 62.0
195 2023/03/23 20:16:06 58.0
196 2023/03/23 20:20:06 60.6
197 2023/03/23 20:24:06 62.4
198 2023/03/23 20:28:06 60.2
199 2023/03/23 20:32:06 61.2
200 2023/03/23 20:36:06 62.2
201 2023/03/23 20:40:06 60.9
202 2023/03/23 20:44:06 58.9
203 2023/03/23 20:48:06 62.2
204 2023/03/23 20:52:06 59.8
205 2023/03/23 20:56:06 60.7
206 2023/03/23 21:00:06 59.7
207 2023/03/23 21:04:06 60.1
208 2023/03/23 21:08:06 61.5
209 2023/03/23 21:12:06 60.0
210 2023/03/23 21:16:06 60.7
211 2023/03/23 21:20:06 59.0
212 2023/03/23 21:24:06 54.7
213 2023/03/23 21:28:06 58.8
214 2023/03/23 21:32:06 62.6
215 2023/03/23 21:36:06 60.4
216 2023/03/23 21:40:06 57.2
217 2023/03/23 21:44:06 62.2
218 2023/03/23 21:48:06 56.0
219 2023/03/23 21:52:06 56.6
220 2023/03/23 21:56:06 59.8
221 2023/03/23 22:00:06 53.5
222 2023/03/23 22:04:06 59.9
223 2023/03/23 22:08:06 61.2
224 2023/03/23 22:12:06 56.7
225 2023/03/23 22:16:06 62.8
226 2023/03/23 22:20:06 60.6
227 2023/03/23 22:24:06 52.7
228 2023/03/23 22:28:06 69.8
229 2023/03/23 22:32:06 63.5
230 2023/03/23 22:36:06 55.2
231 2023/03/23 22:40:06 56.8
232 2023/03/23 22:44:06 61.2
233 2023/03/23 22:48:06 56.4
234 2023/03/23 22:52:06 57.4
235 2023/03/23 22:56:06 60.5
236 2023/03/23 23:00:06 55.3
237 2023/03/23 23:04:06 52.3
238 2023/03/23 23:08:06 62.1
239 2023/03/23 23:12:06 58.0
240 2023/03/23 23:16:06 58.9
241 2023/03/23 23:20:06 55.8
242 2023/03/23 23:24:06 59.6
243 2023/03/23 23:28:06 54.7
244 2023/03/23 23:32:06 59.6
245 2023/03/23 23:36:06 56.1
246 2023/03/23 23:40:06 58.7
247 2023/03/23 23:44:06 61.3
248 2023/03/23 23:48:06 55.2
249 2023/03/23 23:52:06 63.9
250 2023/03/23 23:56:06 58.5
251 2023/03/24 00:00:06 54.9
252 2023/03/24 00:04:06 59.7
253 2023/03/24 00:08:06 57.5
254 2023/03/24 00:12:06 58.3
255 2023/03/24 00:16:06 59.6
256 2023/03/24 00:20:06 56.3
257 2023/03/24 00:24:06 50.2
258 2023/03/24 00:28:06 55.9
259 2023/03/24 00:32:06 61.0
260 2023/03/24 00:36:06 53.3
261 2023/03/24 00:40:06 55.4
262 2023/03/24 00:44:06 60.3
263 2023/03/24 00:48:06 60.2
264 2023/03/24 00:52:06 50.9
265 2023/03/24 00:56:06 57.3
266 2023/03/24 01:00:06 55.6
267 2023/03/24 01:04:06 49.9
268 2023/03/24 01:08:06 57.4
269 2023/03/24 01:12:06 52.3
270 2023/03/24 01:16:06 52.9
271 2023/03/24 01:20:06 56.0
272 2023/03/24 01:24:06 45.5
273 2023/03/24 01:28:06 57.4
274 2023/03/24 01:32:06 55.7
275 2023/03/24 01:36:06 50.1
276 2023/03/24 01:40:06 57.6
277 2023/03/24 01:44:06 54.8
278 2023/03/24 01:48:06 48.6
279 2023/03/24 01:52:06 47.5
280 2023/03/24 01:56:06 55.1
281 2023/03/24 02:00:06 71.0
282 2023/03/24 02:04:06 52.3
283 2023/03/24 02:08:06 56.9
284 2023/03/24 02:12:06 49.3
285 2023/03/24 02:16:06 58.3
286 2023/03/24 02:20:06 53.8
287 2023/03/24 02:24:06 51.5
288 2023/03/24 02:28:06 49.8
289 2023/03/24 02:32:06 59.5
290 2023/03/24 02:36:06 52.8
291 2023/03/24 02:40:06 53.1
292 2023/03/24 02:44:06 49.0
293 2023/03/24 02:48:06 45.4
294 2023/03/24 02:52:06 53.5
295 2023/03/24 02:56:06 58.3
296 2023/03/24 03:00:06 48.8
297 2023/03/24 03:04:06 54.6
298 2023/03/24 03:08:06 55.9
299 2023/03/24 03:12:06 51.2
300 2023/03/24 03:16:06 53.1
301 2023/03/24 03:20:06 56.4
302 2023/03/24 03:24:06 59.6
303 2023/03/24 03:28:06 55.1
304 2023/03/24 03:32:06 57.6
305 2023/03/24 03:36:06 48.8
306 2023/03/24 03:40:06 52.2
307 2023/03/24 03:44:06 62.7
308 2023/03/24 03:48:06 52.2
309 2023/03/24 03:52:06 53.5
310 2023/03/24 03:56:06 53.5
311 2023/03/24 04:00:06 50.4
312 2023/03/24 04:04:06 51.4
313 2023/03/24 04:08:06 60.9
314 2023/03/24 04:12:06 50.4
315 2023/03/24 04:16:06 62.0
316 2023/03/24 04:20:06 54.9
317 2023/03/24 04:24:06 55.6
318 2023/03/24 04:28:06 58.2
319 2023/03/24 04:32:06 60.7
320 2023/03/24 04:36:06 49.8
321 2023/03/24 04:40:06 59.8
322 2023/03/24 04:44:06 61.3
323 2023/03/24 04:48:06 53.2
324 2023/03/24 04:52:06 59.9
325 2023/03/24 04:56:06 58.1
326 2023/03/24 05:00:06 51.2
327 2023/03/24 05:04:06 58.6
328 2023/03/24 05:08:06 60.2
329 2023/03/24 05:12:06 52.4
330 2023/03/24 05:16:06 49.3
331 2023/03/24 05:20:06 56.8
332 2023/03/24 05:24:06 49.3
333 2023/03/24 05:28:06 53.8
334 2023/03/24 05:32:06 61.0
335 2023/03/24 05:36:06 57.8
336 2023/03/24 05:40:06 61.4
337 2023/03/24 05:44:06 63.7
338 2023/03/24 05:48:06 64.4
339 2023/03/24 05:52:06 62.0
340 2023/03/24 05:56:06 64.2
341 2023/03/24 06:00:06 65.0
342 2023/03/24 06:04:06 57.7
343 2023/03/24 06:08:06 62.1
344 2023/03/24 06:12:06 53.1
345 2023/03/24 06:16:06 60.2
346 2023/03/24 06:20:06 59.7
347 2023/03/24 06:24:06 61.6
348 2023/03/24 06:28:06 59.3
349 2023/03/24 06:32:06 64.9
350 2023/03/24 06:36:06 60.2
351 2023/03/24 06:40:06 61.2
352 2023/03/24 06:44:06 58.8
353 2023/03/24 06:48:06 60.7
354 2023/03/24 06:52:06 62.1
355 2023/03/24 06:56:06 57.3
356 2023/03/24 07:00:06 57.7
357 2023/03/24 07:04:06 66.3
358 2023/03/24 07:08:06 60.7
359 2023/03/24 07:12:06 58.7
360 2023/03/24 07:16:06 57.3
30 35
40 45
50 55
60 65
70 75 7:20 AM 8:20 AM 9:20 AM 10:20 AM 11:20 AM 12:20 PM 1:20 PM 2:20 PM 3:20 PM 4:20 PM 5:20 PM 6:20 PM 7:20 PM 8:20 PM 9:20 PM 10:20 PM 11:20 PM 12:20 AM 1:20 AM 2:20 AM 3:20 AM 4:20 AM 5:20 AM 6:20 AM dBA Time
LT-1 - March 23 - 24, 2023
LT-2
- Freq Weight : A
- Time Weight : SLOW
- Level Range : 40-100
- Max dB : 86.0 - 2023/03/16 14:36:06
- Level Range : 40-100
- SEL : 119.3
- Leq : 55.3
-
No.s Date Time (dB)
----------------------------------------------------------------------- 1 2023/03/16 11:15:44 53.5
2 2023/03/16 11:19:44 54.2
3 2023/03/16 11:23:44 57.4
4 2023/03/16 11:27:44 45.5
5 2023/03/16 11:31:44 45.5
6 2023/03/16 11:35:44 53.7
7 2023/03/16 11:39:44 46.6
8 2023/03/16 11:43:44 59.4
9 2023/03/16 11:47:44 50.5
10 2023/03/16 11:51:44 49.4
11 2023/03/16 11:55:44 51.6
12 2023/03/16 11:59:44 52.1
13 2023/03/16 12:03:44 53.4
14 2023/03/16 12:07:44 50.9
15 2023/03/16 12:11:44 47.9
16 2023/03/16 12:15:44 48.6
17 2023/03/16 12:19:44 50.3
18 2023/03/16 12:23:44 49.0
19 2023/03/16 12:27:44 56.2
20 2023/03/16 12:31:44 52.4
21 2023/03/16 12:35:44 53.7
22 2023/03/16 12:39:44 50.6
23 2023/03/16 12:43:44 51.7
24 2023/03/16 12:47:44 55.9
25 2023/03/16 12:51:44 51.7
26 2023/03/16 12:55:44 51.2
27 2023/03/16 12:59:44 51.6
28 2023/03/16 13:03:44 52.6
29 2023/03/16 13:07:44 54.2
30 2023/03/16 13:11:44 55.1
31 2023/03/16 13:15:44 52.8
32 2023/03/16 13:19:44 52.4
33 2023/03/16 13:23:44 50.7
34 2023/03/16 13:27:44 55.4
35 2023/03/16 13:31:44 51.2
36 2023/03/16 13:35:44 55.4
37 2023/03/16 13:39:44 50.5
38 2023/03/16 13:43:44 47.6
39 2023/03/16 13:47:44 53.6
40 2023/03/16 13:51:44 54.6
41 2023/03/16 13:55:44 66.2
42 2023/03/16 13:59:44 55.5
43 2023/03/16 14:03:44 52.6
44 2023/03/16 14:07:44 50.0
45 2023/03/16 14:11:44 50.2
46 2023/03/16 14:15:44 48.3
47 2023/03/16 14:19:44 50.7
48 2023/03/16 14:23:44 49.3
49 2023/03/16 14:27:44 52.6
50 2023/03/16 14:31:44 54.5
51 2023/03/16 14:35:44 51.5
52 2023/03/16 14:39:44 49.0
53 2023/03/16 14:43:44 52.9
54 2023/03/16 14:47:44 52.9
55 2023/03/16 14:51:44 55.5
56 2023/03/16 14:55:44 50.1
57 2023/03/16 14:59:44 51.2
58 2023/03/16 15:03:44 50.7
59 2023/03/16 15:07:44 52.6
60 2023/03/16 15:11:44 53.8
61 2023/03/16 15:15:44 51.2
62 2023/03/16 15:19:44 49.4
63 2023/03/16 15:23:44 51.5
64 2023/03/16 15:27:44 54.9
65 2023/03/16 15:31:44 58.5
66 2023/03/16 15:35:44 49.4
67 2023/03/16 15:39:44 50.2
68 2023/03/16 15:43:44 51.0
69 2023/03/16 15:47:44 50.8
70 2023/03/16 15:51:44 48.8
71 2023/03/16 15:55:44 50.8
72 2023/03/16 15:59:44 52.0
73 2023/03/16 16:03:44 55.8
74 2023/03/16 16:07:44 49.3
75 2023/03/16 16:11:44 47.7
76 2023/03/16 16:15:44 50.1
77 2023/03/16 16:19:44 52.7
78 2023/03/16 16:23:44 45.5
79 2023/03/16 16:27:44 52.0
80 2023/03/16 16:31:44 49.0
81 2023/03/16 16:35:44 48.7
82 2023/03/16 16:39:44 47.8
83 2023/03/16 16:43:44 53.3
84 2023/03/16 16:47:44 49.5
85 2023/03/16 16:51:44 47.5
86 2023/03/16 16:55:44 51.1
87 2023/03/16 16:59:44 53.1
88 2023/03/16 17:03:44 47.8
89 2023/03/16 17:07:44 50.1
90 2023/03/16 17:11:44 49.1
91 2023/03/16 17:15:44 52.7
92 2023/03/16 17:19:44 50.1
93 2023/03/16 17:23:44 50.0
94 2023/03/16 17:27:44 50.1
95 2023/03/16 17:31:44 50.0
96 2023/03/16 17:35:44 50.1
97 2023/03/16 17:39:44 54.4
98 2023/03/16 17:43:44 50.2
99 2023/03/16 17:47:44 57.9
100 2023/03/16 17:51:44 51.3
101 2023/03/16 17:55:44 53.8
102 2023/03/16 17:59:44 51.8
103 2023/03/16 18:03:44 54.8
104 2023/03/16 18:07:44 67.9
105 2023/03/16 18:11:44 51.4
106 2023/03/16 18:15:44 71.8
107 2023/03/16 18:19:44 51.9
108 2023/03/16 18:23:44 50.9
109 2023/03/16 18:27:44 53.5
110 2023/03/16 18:31:44 52.5
111 2023/03/16 18:35:44 51.9
112 2023/03/16 18:39:44 52.1
113 2023/03/16 18:43:44 52.8
114 2023/03/16 18:47:44 51.0
115 2023/03/16 18:51:44 50.6
116 2023/03/16 18:55:44 52.8
117 2023/03/16 18:59:44 51.6
118 2023/03/16 19:03:44 51.3
119 2023/03/16 19:07:44 50.8
120 2023/03/16 19:11:44 51.4
121 2023/03/16 19:15:44 50.7
122 2023/03/16 19:19:44 49.1
123 2023/03/16 19:23:44 58.6
124 2023/03/16 19:27:44 50.8
125 2023/03/16 19:31:44 55.5
126 2023/03/16 19:35:44 50.2
127 2023/03/16 19:39:44 52.3
128 2023/03/16 19:43:44 48.1
129 2023/03/16 19:47:44 51.0
130 2023/03/16 19:51:44 50.0
131 2023/03/16 19:55:44 48.2
132 2023/03/16 19:59:44 52.3
133 2023/03/16 20:03:44 56.0
134 2023/03/16 20:07:44 50.8
135 2023/03/16 20:11:44 50.5
136 2023/03/16 20:15:44 48.9
137 2023/03/16 20:19:44 49.9
138 2023/03/16 20:23:44 50.9
139 2023/03/16 20:27:44 50.3
140 2023/03/16 20:31:44 49.6
141 2023/03/16 20:35:44 51.9
142 2023/03/16 20:39:44 50.3
143 2023/03/16 20:43:44 50.0
144 2023/03/16 20:47:44 50.5
145 2023/03/16 20:51:44 51.1
146 2023/03/16 20:55:44 50.0
147 2023/03/16 20:59:44 51.2
148 2023/03/16 21:03:44 50.4
149 2023/03/16 21:07:44 50.0
150 2023/03/16 21:11:44 49.7
151 2023/03/16 21:15:44 50.7
152 2023/03/16 21:19:44 51.2
153 2023/03/16 21:23:44 48.7
154 2023/03/16 21:27:44 55.8
155 2023/03/16 21:31:44 48.1
156 2023/03/16 21:35:44 49.8
157 2023/03/16 21:39:44 51.4
158 2023/03/16 21:43:44 49.8
159 2023/03/16 21:47:44 53.3
160 2023/03/16 21:51:44 48.4
161 2023/03/16 21:55:44 52.2
162 2023/03/16 21:59:44 47.4
163 2023/03/16 22:03:44 50.3
164 2023/03/16 22:07:44 50.2
165 2023/03/16 22:11:44 47.7
166 2023/03/16 22:15:44 51.1
167 2023/03/16 22:19:44 47.1
168 2023/03/16 22:23:44 52.0
169 2023/03/16 22:27:44 48.7
170 2023/03/16 22:31:44 51.5
171 2023/03/16 22:35:44 51.2
172 2023/03/16 22:39:44 49.6
173 2023/03/16 22:43:44 53.7
174 2023/03/16 22:47:44 45.0
175 2023/03/16 22:51:44 49.5
176 2023/03/16 22:55:44 45.4
177 2023/03/16 22:59:44 52.0
178 2023/03/16 23:03:44 60.1
179 2023/03/16 23:07:44 47.9
180 2023/03/16 23:11:44 48.4
181 2023/03/16 23:15:44 52.5
182 2023/03/16 23:19:44 51.0
183 2023/03/16 23:23:44 41.6
184 2023/03/16 23:27:44 48.5
185 2023/03/16 23:31:44 46.6
186 2023/03/16 23:35:44 44.8
187 2023/03/16 23:39:44 49.8
188 2023/03/16 23:43:44 43.5
189 2023/03/16 23:47:44 51.1
190 2023/03/16 23:51:44 42.5
191 2023/03/16 23:55:44 69.4
192 2023/03/16 23:59:44 50.5
193 2023/03/17 00:03:44 43.9
194 2023/03/17 00:07:44 51.3
195 2023/03/17 00:11:44 45.0
196 2023/03/17 00:15:44 46.0
197 2023/03/17 00:19:44 48.0
198 2023/03/17 00:23:44 45.4
199 2023/03/17 00:27:44 47.3
200 2023/03/17 00:31:44 43.3
201 2023/03/17 00:35:44 46.8
202 2023/03/17 00:39:44 45.0
203 2023/03/17 00:43:44 45.6
204 2023/03/17 00:47:44 48.3
205 2023/03/17 00:51:44 42.2
206 2023/03/17 00:55:44 48.9
207 2023/03/17 00:59:44 41.1
208 2023/03/17 01:03:44 48.0
209 2023/03/17 01:07:44 41.9
210 2023/03/17 01:11:44 42.9
211 2023/03/17 01:15:44 49.6
212 2023/03/17 01:19:44 45.0
213 2023/03/17 01:23:44 48.0
214 2023/03/17 01:27:44 42.0
215 2023/03/17 01:31:44 50.2
216 2023/03/17 01:35:44 46.9
217 2023/03/17 01:39:44 43.0
218 2023/03/17 01:43:44 42.8
219 2023/03/17 01:47:44 51.1
220 2023/03/17 01:51:44 47.1
221 2023/03/17 01:55:44 43.3
222 2023/03/17 01:59:44 49.0
223 2023/03/17 02:03:44 42.1
224 2023/03/17 02:07:44 44.2
225 2023/03/17 02:11:44 46.5
226 2023/03/17 02:15:44 41.7
227 2023/03/17 02:19:44 57.6
228 2023/03/17 02:23:44 43.6
229 2023/03/17 02:27:44 50.1
230 2023/03/17 02:31:44 47.8
231 2023/03/17 02:35:44 44.5
232 2023/03/17 02:39:44 44.9
233 2023/03/17 02:43:44 42.1
234 2023/03/17 02:47:44 45.8
235 2023/03/17 02:51:44 46.0
236 2023/03/17 02:55:44 48.0
237 2023/03/17 02:59:44 42.8
238 2023/03/17 03:03:44 44.1
239 2023/03/17 03:07:44 45.8
240 2023/03/17 03:11:44 45.9
241 2023/03/17 03:15:44 42.9
242 2023/03/17 03:19:44 44.0
243 2023/03/17 03:23:44 62.5
244 2023/03/17 03:27:44 42.9
245 2023/03/17 03:31:44 42.0
246 2023/03/17 03:35:44 45.1
247 2023/03/17 03:39:44 41.3
248 2023/03/17 03:43:44 47.8
249 2023/03/17 03:47:44 41.4
250 2023/03/17 03:51:44 50.0
251 2023/03/17 03:55:44 48.9
252 2023/03/17 03:59:44 53.1
253 2023/03/17 04:03:44 44.7
254 2023/03/17 04:07:44 51.6
255 2023/03/17 04:11:44 50.4
256 2023/03/17 04:15:44 46.6
257 2023/03/17 04:19:44 49.9
258 2023/03/17 04:23:44 47.2
259 2023/03/17 04:27:44 46.1
260 2023/03/17 04:31:44 45.0
261 2023/03/17 04:35:44 47.2
262 2023/03/17 04:39:44 49.2
263 2023/03/17 04:43:44 43.7
264 2023/03/17 04:47:44 53.1
265 2023/03/17 04:51:44 44.2
266 2023/03/17 04:55:44 47.5
267 2023/03/17 04:59:44 52.1
268 2023/03/17 05:03:44 45.4
269 2023/03/17 05:07:44 49.4
270 2023/03/17 05:11:44 48.9
271 2023/03/17 05:15:44 53.0
272 2023/03/17 05:19:44 46.3
273 2023/03/17 05:23:44 50.3
274 2023/03/17 05:27:44 49.1
275 2023/03/17 05:31:44 46.4
276 2023/03/17 05:35:44 54.7
277 2023/03/17 05:39:44 44.4
278 2023/03/17 05:43:44 51.0
279 2023/03/17 05:47:44 49.7
280 2023/03/17 05:51:44 46.8
281 2023/03/17 05:55:44 51.0
282 2023/03/17 05:59:44 49.4
283 2023/03/17 06:03:44 48.0
284 2023/03/17 06:07:44 54.9
285 2023/03/17 06:11:44 52.4
286 2023/03/17 06:15:44 47.9
287 2023/03/17 06:19:44 52.3
288 2023/03/17 06:23:44 57.2
289 2023/03/17 06:27:44 48.8
290 2023/03/17 06:31:44 54.9
291 2023/03/17 06:35:44 51.2
292 2023/03/17 06:39:44 48.7
293 2023/03/17 06:43:44 53.3
294 2023/03/17 06:47:44 53.7
295 2023/03/17 06:51:44 52.4
296 2023/03/17 06:55:44 54.7
297 2023/03/17 06:59:44 53.4
298 2023/03/17 07:03:44 55.7
299 2023/03/17 07:07:44 57.4
300 2023/03/17 07:11:44 54.4
301 2023/03/17 07:15:44 53.3
302 2023/03/17 07:19:44 53.8
303 2023/03/17 07:23:44 52.6
304 2023/03/17 07:27:44 53.5
305 2023/03/17 07:31:44 58.3
306 2023/03/17 07:35:44 52.9
307 2023/03/17 07:39:44 54.7
308 2023/03/17 07:43:44 55.0
309 2023/03/17 07:47:44 53.5
310 2023/03/17 07:51:44 62.0
311 2023/03/17 07:55:44 50.4
312 2023/03/17 07:59:44 63.6
313 2023/03/17 08:03:44 59.6
314 2023/03/17 08:07:44 59.3
315 2023/03/17 08:11:44 57.8
316 2023/03/17 08:15:44 68.6
317 2023/03/17 08:19:44 59.6
318 2023/03/17 08:23:44 60.2
319 2023/03/17 08:27:44 68.3
320 2023/03/17 08:31:44 59.4
321 2023/03/17 08:35:44 59.6
322 2023/03/17 08:39:44 59.3
323 2023/03/17 08:43:44 58.0
324 2023/03/17 08:47:44 58.4
325 2023/03/17 08:51:44 60.2
326 2023/03/17 08:55:44 61.2
327 2023/03/17 08:59:44 67.9
328 2023/03/17 09:03:44 56.9
329 2023/03/17 09:07:44 56.7
330 2023/03/17 09:11:44 50.7
331 2023/03/17 09:15:44 57.3
332 2023/03/17 09:19:44 51.6
333 2023/03/17 09:23:44 50.4
334 2023/03/17 09:27:44 55.2
335 2023/03/17 09:31:44 48.1
336 2023/03/17 09:35:44 52.5
337 2023/03/17 09:39:44 50.6
338 2023/03/17 09:43:44 61.2
339 2023/03/17 09:47:44 51.0
340 2023/03/17 09:51:44 51.0
341 2023/03/17 09:55:44 49.7
342 2023/03/17 09:59:44 44.5
343 2023/03/17 10:03:44 51.2
344 2023/03/17 10:07:44 49.7
345 2023/03/17 10:11:44 47.3
346 2023/03/17 10:15:44 46.8
347 2023/03/17 10:19:44 48.8
348 2023/03/17 10:23:44 49.2
349 2023/03/17 10:27:44 47.5
350 2023/03/17 10:31:44 47.4
351 2023/03/17 10:35:44 48.1
352 2023/03/17 10:39:44 46.1
353 2023/03/17 10:43:44 47.3
354 2023/03/17 10:47:44 59.0
355 2023/03/17 10:51:44 56.4
356 2023/03/17 10:55:44 53.9
357 2023/03/17 10:59:44 53.4
358 2023/03/17 11:03:44 53.8
359 2023/03/17 11:07:44 54.4
360 2023/03/17 11:11:44 51.4
30 35
40 45
50 55
60 65
70 75 11:15 AM 12:15 PM 1:15 PM 2:15 PM 3:15 PM 4:15 PM 5:15 PM 6:15 PM 7:15 PM 8:15 PM 9:15 PM 10:15 PM 11:15 PM 12:15 AM 1:15 AM 2:15 AM 3:15 AM 4:15 AM 5:15 AM 6:15 AM 7:15 AM 8:15 AM 9:15 AM 10:15 AM dBA Time
LT-2 - March 16 - 17, 2023
Appendix B
Construction Noise Modeling
Phase 1 Construction Noise Modeling
Roadway Construction Noise Model (RCNM),Version 1.1
Report date: 03/09/2023
Case Description: Demo
**** Receptor #1 ****
Baselines (dBA)
Description Land Use Daytime Evening Night
----------- -------- ------- ------- -----
Demo Residential 60.0 60.0 50.0
Equipment
---------
Spec Actual Receptor Estimated
Impact Usage Lmax Lmax Distance Shielding
Description Device (%) (dBA) (dBA) (feet) (dBA)
----------- ------ ----- ----- ----- -------- --------- Man Lift No 20 85.0 50.0 0.0
Backhoe No 40 80.0 50.0 0.0
Concrete Saw No 20 90.0 50.0 0.0
Compressor (air) No 40 80.0 50.0 0.0
Crane No 16 85.0 50.0 0.0
Dozer No 40 85.0 50.0 0.0
Dump Truck No 40 84.0 50.0 0.0
Man Lift No 20 85.0 50.0 0.0
Generator No 50 82.0 50.0 0.0
Front End Loader No 40 80.0 50.0 0.0
Vacuum Street Sweeper No 10 80.0 50.0 0.0

Results
-------
Noise Limits (dBA)
Noise Limit Exceedance (dBA)

----------------------------------------------
----------------------------------------------
Calculated (dBA) Day Evening Night
Day Evening Night
---------------- -------------- -------------
-------------- -------------- -------------- -------------- Equipment Lmax Leq Lmax Leq Lmax Leq Lmax
Leq Lmax Leq Lmax Leq Lmax Leq
---------------------- ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------
Man Lift 85.0 78.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Backhoe 80.0 76.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Concrete Saw 90.0 83.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Compressor (air) 80.0 76.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Crane 85.0 77.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Dozer 85.0 81.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Dump Truck 84.0 80.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Man Lift 85.0 78.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Generator 82.0 79.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Front End Loader 80.0 76.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Vacuum Street Sweeper 80.0 70.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Total 90.0 89.1 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Roadway Construction Noise Model (RCNM),Version 1.1
Report date: 03/09/2023
Case Description: Site Prep
**** Receptor #1 ****
Baselines (dBA)
Description Land Use Daytime Evening Night
----------- -------- ------- ------- -----
Site Prep Residential 60.0 60.0 50.0
Equipment
---------
Spec Actual Receptor Estimated
Impact Usage Lmax Lmax Distance Shielding
Description Device (%) (dBA) (dBA) (feet) (dBA)
----------- ------ ----- ----- ----- -------- --------- Man Lift No 20 85.0 50.0 0.0
Backhoe No 40 80.0 50.0 0.0
Dozer No 40 85.0 50.0 0.0
Vacuum Street Sweeper No 10 80.0 50.0 0.0

Results
-------
Noise Limits (dBA)
Noise Limit Exceedance (dBA)

N/A N/A N/A N/A N/A N/A N/A
Backhoe 80.0 76.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Dozer 85.0 81.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Vacuum Street Sweeper 80.0 70.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Total 85.0 83.8 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Roadway Construction Noise Model (RCNM),Version 1.1
Report date: 03/09/2023
Case Description: Bore Hole Drilling
**** Receptor #1 ****
Baselines (dBA)
Description Land Use Daytime Evening Night
----------- -------- ------- ------- -----
Bore Hole Drilling Residential 60.0 50.0 50.0
Equipment
---------
Spec Actual Receptor Estimated
Impact Usage Lmax Lmax Distance Shielding
Description Device (%) (dBA) (dBA) (feet) (dBA)
----------- ------ ----- ----- ----- -------- --------- Backhoe No 40 80.0 50.0 0.0
Auger Drill Rig No 20 85.0 50.0 0.0
Compressor (air) No 40 80.0 50.0 0.0
Generator No 50 82.0 50.0 0.0
Front End Loader No 40 80.0 50.0 0.0
Pumps No 50 77.0 50.0 0.0
Vacuum Street Sweeper No 10 80.0 50.0 0.0

Results
-------
Noise Limits (dBA)
Noise Limit Exceedance (dBA)

N/A N/A N/A N/A N/A N/A N/A
Auger Drill Rig 85.0 78.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Compressor (air) 80.0 76.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Generator 82.0 79.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Front End Loader 80.0 76.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Pumps 77.0 74.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Vacuum Street Sweeper 80.0 70.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Total 85.0 84.7 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Roadway Construction Noise Model (RCNM),Version 1.1
Report date: 03/09/2023
Case Description: Casing + Material Installation
**** Receptor #1 ****
Baselines (dBA)
Description Land Use Daytime Evening Night
----------- -------- ------- ------- -----
Casing + Material Installation Commercial 60.0 50.0 50.0 Equipment
---------
Spec Actual Receptor Estimated
Impact Usage Lmax Lmax Distance Shielding
Description Device (%) (dBA) (dBA) (feet) (dBA)
----------- ------ ----- ----- ----- -------- --------- Man Lift No 20 85.0 50.0 0.0
Backhoe No 40 80.0 50.0 0.0
Auger Drill Rig No 20 85.0 50.0 0.0
Concrete Mixer Truck No 40 85.0 50.0 0.0
Compressor (air) No 40 80.0 50.0 0.0
Crane No 16 85.0 50.0 0.0
Man Lift No 20 85.0 50.0 0.0
Generator No 50 82.0 50.0 0.0
Front End Loader No 40 80.0 50.0 0.0
Pumps No 50 77.0 50.0 0.0
Vacuum Street Sweeper No 10 80.0 50.0 0.0
Welder / Torch No 40 73.0 50.0 0.0

Results
-------
Noise Limits (dBA)
Noise Limit Exceedance (dBA)

N/A N/A N/A N/A N/A N/A N/A
Backhoe 80.0 76.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Auger Drill Rig 85.0 78.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Concrete Mixer Truck 85.0 81.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Compressor (air) 80.0 76.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Crane 85.0 77.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Man Lift 85.0 78.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Generator 82.0 79.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Front End Loader 80.0 76.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Pumps 77.0 74.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Vacuum Street Sweeper 80.0 70.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Welder / Torch 73.0 69.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Total 85.0 87.8 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A

Noise Limits (dBA)
Noise Limit Exceedance (dBA)

----------------------------------------------
----------------------------------------------
Calculated (dBA) Day Evening
Night Day Evening Night
---------------- -------------- -------------
-------------- -------------- -------------- -------------- Equipment Lmax Leq Lmax Leq Lmax Leq Lmax
Leq Lmax Leq Lmax Leq Lmax Leq
---------------------- ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------
Backhoe 80.0 76.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Auger Drill Rig 85.0 78.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Compressor (air) 80.0 76.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Crane 85.0 77.0 N/A N/A N/A N/A N/A
Roadway Construction Noise Model (RCNM),Version 1.1
Report date: 03/09/2023
Case Description: Pump Development
**** Receptor #1 ****
Baselines (dBA)
Description Land Use Daytime Evening Night
----------- -------- ------- ------- -----
Pump Dev Pump Testing Commercial 60.0 50.0 50.0
Equipment
---------
Spec Actual Receptor Estimated
Impact Usage Lmax Lmax Distance Shielding
Description Device (%) (dBA) (dBA) (feet) (dBA)
----------- ------ ----- ----- ----- -------- --------- Backhoe No 40 80.0 50.0 0.0
Auger Drill Rig No 20 85.0 50.0 0.0
Compressor (air) No 40 80.0 50.0 0.0
Crane No 16 85.0 50.0 0.0
Man Lift No 20 85.0 50.0 0.0
Generator No 50 82.0 50.0 0.0
Front End Loader No 40 80.0 50.0 0.0
Pumps No 50 77.0 50.0 0.0
Results
-------

N/A N/A N/A N/A N/A N/A N/A
Man Lift 85.0 78.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Generator 82.0 79.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Front End Loader 80.0 76.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Pumps 77.0 74.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Total 85.0 86.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Roadway Construction Noise Model (RCNM),Version 1.1
Report date: 04/04/2023
Case Description: Pump Testing
**** Receptor #1 ****
Baselines (dBA)
Description Land Use Daytime Evening Night
----------- -------- ------- ------- -----
Residential Residential 60.0 50.0 50.0
Equipment
---------
Spec Actual Receptor
Estimated
Impact Usage Lmax Lmax Distance
Shielding
Description Device (%) (dBA) (dBA) (feet)
(dBA)
----------- ------ ----- ----- ----- --------
---------
Pumps No 50 77.0 50.0

0.0 Generator (<25KVA, VMS signs) No 50 70.0 50.0

0.0 Results
-------
Noise Limits
(dBA) Noise Limit Exceedance (dBA)

----------------------------------------------
----------------------------------------------
Calculated (dBA) Day Evening
Night Day Evening Night
---------------- -------------- -------------
-------------- -------------- -------------- -------------- Equipment Lmax Leq Lmax Leq Lmax Leq
Lmax Leq Lmax Leq Lmax Leq Lmax Leq
---------------------- ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ Pumps 77.0 74.0 N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A N/A
Generator (<25KVA, VMS signs) 70.0 67.0 N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A N/A
Total 77.0 74.8 N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A N/A
Roadway Construction Noise Model (RCNM),Version 1.1
Report date: 03/09/2023
Case Description: Site Restoration & Fencing
**** Receptor #1 ****
Baselines (dBA)
Description Land Use Daytime Evening Night
----------- -------- ------- ------- -----
Site Restoration & Fencing Residential 60.0 50.0 50.0
Equipment
---------
Spec Actual Receptor Estimated
Impact Usage Lmax Lmax Distance Shielding
Description Device (%) (dBA) (dBA) (feet) (dBA)
----------- ------ ----- ----- ----- -------- --------- Man Lift No 20 85.0 50.0 0.0
Vacuum Street Sweeper No 10 80.0 50.0 0.0

Results
-------
Noise Limits (dBA)
Noise Limit Exceedance (dBA)

N/A N/A N/A N/A N/A N/A N/A
Vacuum Street Sweeper 80.0 70.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Total 85.0 78.6 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A

Phase 2 Construction Noise Modeling
Roadway Construction Noise Model (RCNM),Version 1.1
Report date: 03/09/2023
Case Description: Site Prep
**** Receptor #1 ****
Baselines (dBA)
Description Land Use Daytime Evening Night
----------- -------- ------- ------- -----
Site Prep Residential 60.0 50.0 50.0
Equipment
---------
Spec Actual Receptor Estimated
Impact Usage Lmax Lmax Distance Shielding
Description Device (%) (dBA) (dBA) (feet) (dBA)
----------- ------ ----- ----- ----- -------- --------- Backhoe No 40 80.0 50.0 0.0
Front End Loader No 40 80.0 50.0 0.0
Vacuum Street Sweeper No 10 80.0 50.0 0.0

Results
-------
Noise Limits (dBA)
Noise Limit Exceedance (dBA)

N/A N/A N/A N/A N/A N/A N/A
Front End Loader 80.0 76.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Vacuum Street Sweeper 80.0 70.0 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Total 80.0 79.5 N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A N/A
Roadway Construction Noise Model (RCNM),Version 1.1
Report date: 03/09/2023
Case Description: Well Equipping
**** Receptor #1 ****
Baselines (dBA)
Description Land Use Daytime Evening Night
----------- -------- ------- ------- -----
Well Equipping Residential 60.0 50.0 50.0
Equipment
---------
Spec Actual Receptor Estimated
Impact Usage Lmax Lmax Distance Shielding
Description Device (%) (dBA) (dBA) (feet) (dBA)
----------- ------ ----- ----- ----- -------- --------- Backhoe No 40 80.0 50.0 0.0
Auger Drill Rig No 20 85.0 50.0 0.0
Compressor (air) No 40 80.0 50.0 0.0
Crane No 16 85.0 50.0 0.0
Generator No 50 82.0 50.0 0.0
Front End Loader No 40 80.0 50.0 0.0
Front End Loader No 40 80.0 50.0 0.0
Pumps No 50 77.0 50.0 0.0
Vacuum Street Sweeper No 10 80.0 50.0 0.0