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02_Aeronutronic Ford Soil Vapor Remediation Limited Term Permit_PA2022-0180
CITY OF NEWPORT BEACH ZONING ADMINISTRATOR STAFF REPORT January 26, 2023 Agenda Item No. 2 SUBJECT: Aeronutronic Ford Soil Vapor Remediation (PA2022-0180) ▪Limited Term Permit SITE LOCATION: 94 Hartford Drive [NH] APPLICANT: Wood Environment & Infrastructure Solutions, Inc. OWNER: Bayridge Park Homeowners Association PLANNER: Jenny Tran, Assistant Planner 949-644-3212, jtran@newportbeachca.gov LAND USE AND ZONING •General Plan Land Use Plan Category: RM (Multiple Residential) •Zoning District: PC24 (Aeronutronic Ford Planned Community, Area 8) PROJECT SUMMARY A limited term permit for the construction of a soil vapor extraction and treatment system for a term of 12 months. The soil vapor extraction and treatment system will consist of a 20-foot width by 12-foot depth by 10-foot height treatment system building, an underground pipe network (approximately 2,400 linear feet), and 13 extraction wells for soil gas remediation. The project requests a 3.2-foot separation distance where the required separation is 8 feet between buildings and encroachment in the 5-foot front setback per the PC-24 (Aeronutronic Ford Planned Community) development standards. RECOMMENDATION 1)Conduct a public hearing; 2)Find this project exempt from the California Environmental Quality Act (CEQA) under Section 15330 - Class 30 (Minor Actions to Prevent, Minimize, Stabilize, Mitigate or Eliminate the Release or Threat of Release of Hazardous Waste or Hazardous Substances) of the CEQA Guidelines, because it has no potential to have a significant effect on the environment; and 3)Adopt Draft Zoning Administrator Resolution No. _ approving Limited Term Permit (Attachment No. ZA 1). 1 Aeronutronic Ford Soil Vapor Remediation (PA2022-0180) Zoning Administrator, January 26, 2023 Page 2 Tmplt: 01/18/23 DISCUSSION Background •From 1957 to 1993, Ford Motor Company operated the Ford Aeronutronic facility on approximately 200 acres bound by Bison Avenue to the north, MacArthur Boulevard to the east, Ford Road to the south, and Jamboree Road to the west. On-site operations included the research, engineering, and manufacturing of aerospace systems. •As part of on-site operations and as common practice at the time, volatile organic compounds (VOCs) were used to clean the metal parts of the operating equipment. •The facility was demolished between 1993 and 1996 and the Santa Ana Regional Water Quality Control Board (Water Board), the leading regulatory agency for the former Ford Aeronutronic facility and related off-site areas, has conducted remediation work to address the environmental impacts of the facility operations. Remedial technologies such as bioremediation, excavation, disposal of soils & groundwater, and soil vapor treatment systems were used. •Ongoing monitoring of groundwater and site conditions continued, and the site was subsequently rezoned and redeveloped for residential purposes in the 1990s. •Although remediation actions were previously conducted, more stringent regulatory standards and advances in equipment sensitivity and detection limits have determined that further remediation is necessary. Project Description •The soil vapor extraction system and treatment system, as described in a Remedial Design and Implementation Plan and approved by the Water Board on January 28, 2022, consists of 13 vapor extraction wells, 2,400 feet of piping, and a treatment system housed in a prefabricated steel building with a floor area of 240 square feet. A vacuum pump (also known as a “blower”) will extract vapor from the soil through the wells and deliver it to the treatment system where granular activated carbon removes the VOCs and then clean vapor is discharged into the atmosphere. This vapor discharge requires approval of a permit to be obtained from the South Coast Air Quality Management District. •The project requests a separation from structures ranging from 3 feet to 4-feet 6- inches where the required separation is 8 feet between structures and encroachment in the 5-foot front setback per the PC-24 (Aeronutronic Ford Planned Community) development standards. 2 Aeronutronic Ford Soil Vapor Remediation (PA2022-0180) Zoning Administrator, January 26, 2023 Page 3 Tmplt: 01/18/23 • The prefabricated steel building will house the treatment system which is comprised of four vacuum pumps, one heat exchanger, associated carbon vessels, holding tanks, and pumps. • The treatment system will be located adjacent to the residence at 94 Hartford Drive as it has been identified as the most feasible location to reduce the visual impact from surrounding residents. The location is also adjacent to Country Club Drive and will not encroach on or obstruct the public utility easement or easement for emergency and security ingress and egress. The location will also not obstruct any windows or doors of the residence of Hartford Drive. The separation from structures ranges from 3 feet to 4 feet 6 inches where no openings will be located on the side of the residence between the two buildings. The existing air conditioning compressor is currently located between the existing residence and the proposed treatment system and will be relocated to the right of the proposed treatment system to allow for the placement of the treatment system building. Noise Impact • An Acoustical Engineering Analysis was prepared by Yanchar Design & Consulting Group dated October 15, 2022. The noise level observed in the Acoustical Engineering Analysis at the exterior of the prefabricated treatment system building is 48.8 dBA, which is consistent with the allowable exterior noise standards of 55 dBA from 7:00 am to 10:00 pm and 50 dBA from 10:00 pm to 7:00 am in the Newport Beach Municipal Code (NBMC). The observed noise level at the neighboring residences of 92 and 96 Hartford Drive is calculated to be less than 1 dBA and approximately less than 0.5 dBA at the closest residence across Country Club Drive located at 61 Hillsdale Drive. The planned treatment system will result in approximately 1 dBA increase at 92 and 96 Hartford Drive, which will result in an imperceptible change in ambient noise level. • Section 10.26.025 (Exterior Noise Standards) of the Newport Beach Municipal Code for single-, two- and multiple-family residential properties allows for 55 dBA from 7:00 am to 10:00 pm and 50 dBA from 10:00 pm to 7:00 am. The treatment system is not expected to impact the noise levels beyond the allowable exterior noise standard for residential properties. 3 Aeronutronic Ford Soil Vapor Remediation (PA2022-0180) Zoning Administrator, January 26, 2023 Page 4 Tmplt: 01/18/23 ENVIRONMENTAL REVIEW This project is exempt from the California Environmental Quality Act (CEQA) under Section 15330 under Class 30 (Minor Actions to Prevent, Minimize, Stabilize, Mitigate or Eliminate the Release or Threat of Release of Hazardous Water or Hazardous Substances) of the CEQA Guidelines, California Code of Regulations, Title 14, Division 6, Chapter 3 because it has no potential to have a significant effect on the environment. The Class 30 exemption allows minor cleanup actions taken to prevent, minimize, stabilize, mitigate, or eliminate the release or threat of release of hazardous waste or substance which are small or medium removal actions costing $1 million or less. The cleanup action shall not require the onsite use of a hazardous waste incinerator or thermal treatment unit, or the relocation of residences or businesses. The action shall not involve the potential release into the air of volatile organic compounds as defined in Health and Safety Code Section 25123.6, except for small-scale in situ soil vapor extraction and treatment systems which have been permitted by the local Air Quality Management District. The cleanup action must be consistent with all applicable state and local environmental permitting requirements such as off-site disposal, and air quality rules, and approved by the regulatory body with jurisdiction over the site. The proposed soil vapor extraction and treatment system is consistent with the intent of the Class 30 exemption for minor cleanup actions as it proposes to mitigate the presence of volatile organic compounds (VOCs) in the soil without the use of a hazardous waste incinerator or thermal treatment unit. The project will not relocate any residences or businesses. A permit will be obtained by the South Coast Quality Air Management District (SCQAMD) for the release of volatile organic compounds into the air in small-scale in situ soil vapor extraction and treatment systems. The estimated valuation of the project will not exceed $1 million. The project is consistent with all applicable state and local environmental permitting requirements and is approved by the Santa Ana Regional Water Quality Control Board. SCQAMD, as the lead agency, will adopt this CEQA exemption with their authorization of the project scope. PUBLIC NOTICE Notice of this application was published in the Daily Pilot, mailed to all owners of property within 300 feet of the boundaries of the site (excluding intervening rights-of-way and waterways), including the applicant, and posted on the subject property at least 10 days before the scheduled hearing, consistent with the provisions of the Municipal Code. Additionally, the item appeared on the agenda for this meeting, which was posted at City Hall and on the City website. 4 Aeronutronic Ford Soil Vapor Remediation (PA2022-0180) Zoning Administrator, January 26, 2023 Page 5 Tmplt: 01/18/23 APPEAL PERIOD: An appeal or call for review may be filed with the Director of Community Development within 14 days following the date of the action. For additional information on filing an appeal, contact the Planning Division at 949-644-3200. Prepared by: ____________________________ Jenny Tran, Assistant Planner MKN/jt Attachments: ZA 1 Draft Resolution ZA 2 Vicinity Map ZA 3 Acoustical Engineering Analysis ZA 4 Project Plans 5 Attachment No. ZA 1 Draft Resolution 6 RESOLUTION NO. ZA2023-### A RESOLUTION OF THE ZONING ADMINISTRATOR OF THE CITY OF NEWPORT BEACH, CALIFORNIA, APPROVING A LIMITED TERM PERMIT FOR A SOIL VAPOR EXTRACTION AND TREATMENT SYSTEM LOCATED AT 94 HARTFORD DRIVE [NH] (PA2022-0180). THE ZONING ADMINISTRATOR OF THE CITY OF NEWPORT BEACH HEREBY FINDS AS FOLLOWS: SECTION 1. STATEMENT OF FACTS. 1. An application was filed by Emily Miller of Wood Environment & Infrastructure Solutions, Inc. concerning property located at 94 Hartford Drive, and legally described Lot 4 of Tract No. 12164 requesting approval of a Limited Term Permit for a soil vapor extraction and treatment system. The applicant requests a limited term permit for the construction of a soil vapor extraction and treatment system for a term of 12 months. The soil vapor extraction and treatment system will consist of a 20-foot width by 12-foot depth by 10-foot height treatment system building, an underground pipe network (approximately 2,400 linear ft), and 13 extraction wells for soil gas remediation. The project requests a 3.2-foot separation distance where the required separation is 8 feet between buildings and encroachment in the 5-foot front setback per the PC-24 (Aeronutronic Ford Planned Community) development standards. 2. The subject property is designated Multiple Residential (RM) by the General Plan Land Use Element and is located within the Aeronutronic Ford Planned Community (PC24) Zoning District. 3. The subject property is not located within the coastal zone. 4. A public hearing was held on January 26, 2023, online via Zoom. A notice of the time, place, and purpose of the hearing was given in accordance with the Newport Beach Municipal Code (NBMC). Evidence both written and oral, was presented to and considered by the Zoning Administrator at this hearing. SECTION 2. CALIFORNIA ENVIRONMENTAL QUALITY ACT DETERMINATION. 1. This project is exempt from the California Environmental Quality Act (CEQA) pursuant to Section 15330 under Class 30 (Minor Actions to Prevent, Minimize, Stabilize, Mitigate or Eliminate the Release or Threat of Release of Hazardous Water or Hazardous Substances) of the CEQA Guidelines, California Code of Regulations, Title 14, Division 6, Chapter 3 because it has no potential to have a significant effect on the environment. 2. The Class 30 exemption allows minor cleanup actions taken to prevent, minimize, stabilize, mitigate, or eliminate the release or threat of release of hazardous waste or substance which are small or medium removal actions costing $1 million or less. The cleanup action 7 Zoning Administrator Resolution No. ZA2023-### Page 2 of 9 01-17-23 shall not require the onsite use of a hazardous waste incinerator or thermal treatment unit, or the relocation of residences or businesses. The action shall not involve the potential release into the air of volatile organic compounds as defined in Health and Safety Code Section 25123.6, except for small-scale in situ soil vapor extraction and treatment systems which have been permitted by the local Air Quality Management District. The cleanup action must be consistent with all applicable state and local environmental permitting requirements such as off-site disposal, and air quality rules, and approved by the regulatory body with jurisdiction over the site. 3. The proposed soil vapor extraction and treatment system is consistent with the intent of the Class 30 exemption for minor cleanup actions as it proposes to mitigate the presence of volatile organic compounds (VOCs) in the soil without the use of a hazardous waste incinerator or thermal treatment unit. The project will not relocate any residences or businesses. A permit will be obtained by the South Coast Quality Air Management District (SCQAMD) for the release of volatile organic compounds into the air in small-scale in situ soil vapor extraction and treatment systems. The project is consistent with all applicable state and local environmental permitting requirements and is approved by the Santa Ana Regional Water Quality Control Board. SCQAMD, as the lead agency, will adopt this CEQA exemption with their authorization of the project scope. SECTION 3. REQUIRED FINDINGS. In accordance with Section 20.52.040 (Limited Term Permits) of the Newport Beach Municipal Code, the following findings, and facts in support of such findings are set forth: Finding: A. The operation of the limited duration uses at the location proposed and within the period specified would not be detrimental to the harmonious and orderly growth of the City, nor endanger, jeopardize, or otherwise constitute a hazard to the public convenience, health, interest, safety, or general welfare of persons residing or working in the neighborhood of the requested limited duration use; Facts in Support of Finding: 1. The prefabricated steel building will be located adjacent to the residence at 94 Hartford Drive and Country Club Drive, outside of common residential areas of the Bayridge Park Homeowner’s Association. The building will be located as such to be visually hidden from residents’ sight as much as possible. The building will provide exterior siding and will be painted to match the architectural exterior of the surrounding residential units along Hartford Drive. A new xeriscape landscape will be planted in and around the new prefabricated building, which will help soften the visual impact of the structure. 2. The noise level observed in the Acoustical Engineering Analysis at the exterior of the treatment system building is 48.8 dBA which is consistent with the allowable exterior noise standards of 55 dBA from 7:00 am to 10:00 pm and 50 dBA from 10:00 pm to 8 Zoning Administrator Resolution No. ZA2023-### Page 3 of 9 01-17-23 7:00 am in the Newport Beach Municipal Code. The observed noise level at the neighboring residences of 92 and 96 Hartford Drive is calculated to be approximately 1 dBA and approximately less than 0.5 dBA at the closest residence across Country Club Drive located at 61 Hillsdale Drive. Finding: B. The subject lot is adequate in size and shape to accommodate the limited duration use without material detriment to the use and enjoyment of other properties located adjacent to and in the vicinity of the lot; Facts in Support of Finding: 1. The subject lot is within Planning Area 8 (Attached Residential) of the Aeronutronic Ford Planned Community, which is approximately 12 acres in size. The proposed building will be located adjacent to the residence of 94 Hartford Drive, adjacent to the private drive (Hartford Drive), and will not negatively impact on-site vehicular circulation. 2. The treatment system will be located within a new prefabricated building, which is 20 feet by 12 feet and 240 square feet in size. The building is 10-feet 2-inches to the top of the roof and 13-feet 5-inches to the top of the air exhaust. The existing dwelling is two (2)-stories and the proposed treatment system building will be visually hidden from residents’ sight as much as possible with new xeriscape landscape plantings to help soften the visual impact from the private street. Additionally, the treatment system building will be clad in siding that will be painted to match the surrounding buildings and will be conditioned upon completion of the final building permit to restore the landscaping to provide further screening. 3. The proposed treatment system building will be located on private property. Finding: C. The subject lot is adequately served by streets or highways having sufficient width and improvements to accommodate the kind and quantity of traffic that the limited duration use would or could reasonably be expected to generate; Facts in Support of Finding: 1. The proposed prefabricated building is located adjacent to an existing private street, which is an entryway into the community. The building location is within an existing sloped and landscaped area that will not interfere with any circulation drive aisles. 2. The soil vapor extraction and treatment system will require ongoing on-site monitoring and maintenance that will consist of one (1) or two (2) field staff visiting the site approximately once a month to collect samples and perform maintenance as 9 Zoning Administrator Resolution No. ZA2023-### Page 4 of 9 01-17-23 needed. No large commercial vehicles are required for monthly monitoring and maintenance and no impact or increase in traffic is expected. 3. Carbon changeouts that require a vacuum truck and one (1) truck trailer and boom lift attachment parked on Country Club Drive are to take place two (2) times per year for 4 to 6 hours at a time. This routine maintenance has a low frequency and will not completely obstruct the traffic circulation on Country Club Drive. Country Club Drive is a private street in a private community and is not subject to additional permits from Public Works. The Bayridge Park Homeowner’s Association will be notified at least seven (7) days before maintenance. Finding: D. Adequate temporary parking to accommodate vehicular traffic to be generated by the limited duration use would be available either on-site or at alternate locations acceptable to the Zoning Administrator; and Fact in Support of Finding: 1. Planning Area 8 of the Aeronutronic Ford Planned Community requires a minimum of two (2) guest parking spaces per cluster unit development where cluster unit development is defined as a combination or arrangement of attached or detached dwellings and their accessory structures on contiguous or related building sites. Field staff performing on-site monitoring and maintenance will utilize the guest parking spaces on-site during monthly visits. Finding: E. The limited duration use is consistent with all applicable provisions of the General Plan, any applicable specific plan, the Municipal Code, and other City regulations. Facts in Support of Finding: 1. The temporary (one [1]-year duration) treatment system building is conditioned to comply with all applicable provisions of the General Plan, Municipal Code, and other City regulations. 2. The limited duration use allows for relief from the required setback developmental standard of a 5-foot setback and 8-foot distance from buildings and will be conditioned to require additional permits upon expiration of the limited term permit. 3. The project is conditioned to require a permit from the South Coast Quality Air Management District for the release of volatile organic compounds into the air in small- scale in situ soil vapor extraction and treatment systems and must comply with the South Coast AQMD requirements for the federal and state Clean Air Act (CAA) the Air Quality Management Plan (AQMP), and all other air quality rules and regulations. 10 Zoning Administrator Resolution No. ZA2023-### Page 5 of 9 01-17-23 SECTION 4. DECISION. NOW, THEREFORE, BE IT RESOLVED: 1. The Zoning Administrator of the City of Newport Beach hereby finds this project is categorically exempt from the California Environmental Quality Act (CEQA) pursuant to Section 15330 under Class 30 (Minor Actions to Prevent, Minimize, Stabilize, Mitigate or Eliminate the Release or Threat of Release of Hazardous Water or Hazardous Substances) of the CEQA Guidelines, California Code of Regulations, Title 14, Division 6, Chapter 3 because it has no potential to have a significant effect on the environment. 2. The Zoning Administrator of the City of Newport Beach hereby approves the Limited Term Permit (PA2022-0180), subject to the conditions outlined in Exhibit A, which is attached hereto and incorporated by reference. 3. This action shall become final and effective 14 days following the date this Resolution was adopted unless within such time an appeal or call for review is filed with the Community Development Director by the provisions of Title 20 Planning and Zoning, of the Newport Beach Municipal Code. PASSED, APPROVED, AND ADOPTED THIS 26TH DAY OF JANUARY 2023. _____________________________________ Ben Zdeba, AICP, Zoning Administrator 11 Zoning Administrator Resolution No. ZA2023-### Page 6 of 9 01-17-23 EXHIBIT “A” CONDITIONS OF APPROVAL Planning Division 1. The development shall be in substantial conformance with the approved site plan, floor plans, and building elevations stamped and dated with the date of this approval (except as modified by applicable conditions of approval). 2. The project is subject to all applicable City ordinances, policies, and standards unless specifically waived or modified by the conditions of approval. 3. The applicant shall comply with all federal, state, and local laws. A material violation of any of those laws in connection with the use may be caused the revocation of this limited term permit. 4. This Limited Term Permit shall expire unless exercised within 24 months from the date of approval as specified in Section 20.91.050 of the Newport Beach Municipal Code unless an extension is otherwise granted. 5. This Limited Term Permit may be modified or revoked by the Zoning Administrator if determined that the proposed uses or conditions under which it is being operated or maintained are detrimental to the public health, welfare or materially injurious to property or improvements in the vicinity or if the property is operated or maintained to constitute a public nuisance. 6. This Limited Term Permit shall expire twelve (12) months from the issued date unless an extension of up to one (1) additional period of 12 months is granted by the Zoning Administrator in compliance with Section 20.54.060 (Time Limits and Extensions) of the Zoning Code. A letter requesting the extension shall be submitted to the Planning Division no later than thirty (30) days before the expiration date of this permit. 7. If this soil remediation project is anticipated to continue beyond the time limits specified under Section 20.54.060 (Time Limits and Extensions), the applicant shall submit for and obtain approval of a Variance for the encroachment into the required setback and for the required distance between buildings. 8. The prefabricated building shall provide siding and shall be painted to match colors that are architecturally compatible with surrounding residential units. 9. Maintenance vehicles shall utilize residential guest spaces when working at the soil vapor extraction system and treatment facility. 10. Maintenance requiring large commercial vehicles shall be permitted no more than two (2) times per calendar year unless otherwise required for health and safety. The 12 Zoning Administrator Resolution No. ZA2023-### Page 7 of 9 01-17-23 applicant shall notify the Bayridge Park Homeowner’s Association in writing at least seven (7) days before performing maintenance. 11.Prior to the issuance of building permits, the A/C unit serving 94 Hartford shall be relocated so that it does not interfere with the building separation between the prefabricated building and the residential unit. 12.Prior to the issuance of building permits, the project plans shall be modified to demonstrate that any disturbed landscape areas shall be replanted with water-efficient landscaping by Chapter 14.17 (Water Efficient Landscaping). 13.Prior to the issuance of a final building permit, the applicant shall obtain approval for a Permit to Construct (P/C) from the South Coast Quality Air Management District. 14.Any change in operational characteristics, expansion in the area, or other modification to the approved plans, shall require an amendment to this Limited Term Permit or the processing of a new Limited Term Permit. 15.A copy of the Resolution, including conditions of approval Exhibit “A” shall be incorporated into the Building Division and field sets of plans before issuance of the building permits. 16.Prior to the issuance of a building permit, the applicant shall submit a landscape and irrigation plan prepared by a licensed landscape architect. These plans shall demonstrate the restoration of surrounding landscaping to provide further screening for the treatment system building. 17.Prior to the issuance of a building permit, the applicant shall pay any unpaid administrative costs associated with the processing of this application to the Planning Division. 18.All noise generated by the proposed use shall comply with the provisions of Chapter 10.26 and other applicable noise control requirements of the Newport Beach Municipal Code. The maximum noise shall be limited to no more than depicted below for the specified periods unless the ambient noise level is higher: Between the hours of 7:00 AM and 10:00 PM Between the hours of 10:00 PM and 7:00 AM Location Interior Exterior Interior Exterior Residential Property 45dBA 55dBA 40dBA 50dBA Residential Property located within 100 feet of a commercial property 45dBA 60dBA 45dBA 50dBA Mixed Use Property 45dBA 60dBA 45dBA 50dBA Commercial Property N/A 65dBA N/A 60dBA 19.Should the property be sold or otherwise come under different ownership, any future owners or assignees shall be notified of the conditions of this approval by either the 13 Zoning Administrator Resolution No. ZA2023-### Page 8 of 9 01-17-23 current business owner, property owner, or leasing agent. 20. Construction activities shall comply with Section 10.28.040 of the Newport Beach Municipal Code, which restricts hours of noise-generating construction activities that produce noise to between the hours of 7:00 a.m. and 6:30 p.m., Monday through Friday, and 8:00 a.m. and 6:00 p.m. on Saturday. Noise-generating construction activities are not allowed on Sundays or Holidays. 21. This approval shall expire and become void unless exercised within 24 months from the actual date of review authority approval, except where an extension of time is approved in compliance with the provisions of Title 20 Planning and Zoning of the Newport Beach Municipal Code. 22. To the fullest extent permitted by law, the applicant shall indemnify, defend and hold harmless the City, its City Council, its boards and commissions, officials, officers, employees, and agents from and against any claims, demands, obligations, damages, actions, causes of action, suits, losses, judgments, fines, penalties, liabilities, costs, and expenses (including without limitation, attorney’s fees, disbursements, and court costs) of every kind and nature whatsoever which may arise from or in any manner relate (directly or indirectly) to City’s approval of Aeronutronic Ford Soil Vapor Remediation including, but not limited to, Limited Term Permit (PA2022-0180). This indemnification shall include, but not be limited to, damages awarded against the City, if any, costs of suit, attorney’s fees, and other expenses incurred in connection with such claim, action, causes of action, suit or proceeding whether incurred by the applicant, City, and/or the parties initiating or bringing the such proceeding. The applicant shall indemnify the City for all of the City's costs, attorneys' fees, and damages that which City incurs in enforcing the indemnification provisions outlined in this condition. The applicant shall pay to the City upon demand any amount owed to the City under the indemnification requirements prescribed in this condition. Fire Department 23. A three (3)-foot wide walkway shall be provided on at least one (1) side of the lot from Country Club Drive for Fire Department access. Building Division 24. The applicant is required to obtain all applicable permits from the City’s Building Division and Fire Department. The construction plans must comply with the most recent, City- adopted version of the California Building Code. 25. A list of “good housekeeping” practices will be incorporated into the long-term post- construction operation of the site to minimize the likelihood that pollutants will be used, stored, or spilled on the site that could impair water quality. These may include frequent parking area vacuum truck sweeping, removal of wastes or spills, limited use of harmful fertilizers or pesticides, and the diversion of stormwater away from potential sources of pollution (e.g., trash receptacles and parking structures). The Stage 2 WQMP shall list 14 Zoning Administrator Resolution No. ZA2023-### Page 9 of 9 01-17-23 and describe all structural and non-structural BMPs. In addition, the WQMP must also identify the entity responsible for the long-term inspection, maintenance, and funding for all structural (and if applicable Treatment Control) BMPs. 15 Attachment No. ZA 2 Vicinity Map 16 VICINITY MAP Limited Term Permit (PA2022-0180) 94 Hartford Drive [NH] 94 Hartford Drive [NH] 17 Attachment No. ZA 3 Acoustical Engineering Analysis 18 ACOUSTICAL ENGINEERING ANALYSIS Soil Vapor Extraction System 94 Hartford Drive Newport Beach, CA 92660 October 15, 2022 YANCHAR DESIGN & CONSULTING GROUP 26741 Portola Parkway, Suite 1E, Foothill Ranch, CA 92610 Tel: 949.770.6601 Fax: 949.770.6575 E-mail: carl@yanchardesign.com. 19 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 2 YANCHAR DESIGN & CONSULTING GROUP PROJECT DESCRIPTION The proposed project is located on the Bayridge Park HOA property in Newport Beach, CA. as illustrated in Figures 1 and 2. The approximate property boundary is outlined in red. The Project consists of a Soil Vapor Extraction system with the mechanical equipment housed in a prefabricated metal building located adjacent to the residential building at 94 Hartford Drive (see Figure 3). Four vacuum pumps ("blowers") and one heat exchanger will be located within the structure along with associated carbon vessels, holding tanks and pumps (see appendix D). The manufacturer’s noise specification for the blowers is 74 dBA and 77 dBA for the heat exchanger (see appendix C). An existing Carrier air conditioning compressor is also located adjacent to the residential structure with a manufacturer’s noise rating of 72 dBA. This condenser will be relocated slightly to the north. Since the residential building and air conditioning compressor are existing, it will be assumed that the interior noise specification of the California building code and the noise level of the condenser at the nearest property line are compliant. Only the new equipment housed in the new steel building will be addressed in this report with the impact if the new equipment combined with the existing condenser will be evaluated. SUMMARY OF CONCLUSIONS Noise measurements were collected on the morning of October 3, night of October 5, and morning of October 6, 2022 at the location of the planned treatment system building (Figure 3). The noise level calculated at the exterior of the prefabricated building from the four vacuum pumps and single heat exchanger is 48.8 dBA, which is in accordance with the manufacturer’s specification of 50 dBA. Calculations was performed to predict the noise level of the existing air conditioning condenser and then the combined sound level of the new equipment and the existing condenser at the nearest residential properties. The noise contribution of the new equipment was calculated to be approximately 1 dBA at 92 and 96 Hartford Drive, and less than 0.5 dBA at 61 Hillsdale Drive. Thus, the planned treatment system will result in an imperceptible change in ambient noise level. The planned treatment system project is expected to meet the requirements for noise ordinance and comply with the City of Newport Beach noise regulations. 20 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 3 YANCHAR DESIGN & CONSULTING GROUP FIGURE 1 - SITE VICINITY FIGURE 2 - PROJECT SITE 21 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 4 YANCHAR DESIGN & CONSULTING GROUP FIGURE 3 - ENLARGED PROJECT SITE Future Treatment System Building 22 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 5 YANCHAR DESIGN & CONSULTING GROUP FIGURE 4 - COUNTRY CLUB DRIVE 23 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 6 YANCHAR DESIGN & CONSULTING GROUP CHARACTERISTICS OF SOUND Sound is described in terms of the loudness (amplitude) of the sound and frequency (pitch) of the sound. The standard unit of measurement of the loudness of sound is the decibel (dB). Since the human ear is not equally sensitive to sound at all frequencies, a special frequency- dependent rating scale has been devised to relate noise to human sensitivity. The A-weighted decibel scale (dBA) performs this compensation by differentiating among frequencies in a manner approximating the sensitivity of the human ear. Decibels are based on the logarithmic scale. The logarithmic scale compresses the wide range in sound pressure levels to a more usable range of numbers in a manner similar to the Richter scale used to measure earthquakes. In terms of human response to noise, a sound 10 dBA higher than another is perceived to be twice as loud and 20 dBA higher is perceived to be four times as loud, and so forth. Everyday sounds normally range from 30 dBA (very quiet) to 100 dBA (very loud). Examples of various sound levels in different environments are illustrated in Table 1. TABLE 1 COMMON SOUND LEVELS AND TYPICAL NOISE SOURCES Noise Source A-Weighted Sound Level in Decibels Noise Environments Subjective Evaluations Near Jet Engine 140 Deafening 128 times as loud Civil Defense Siren 130 Threshold of Pain 64 times as loud Hard Rock Band 120 Threshold of Feeling 32 times as loud Accelerating Motorcycle at a Few Feet Away 110 Very Loud 16 times as loud Pile Driver; Noisy Urban Street/Heavy City Traffic 100 Very Loud 8 times as loud Ambulance Siren; Food Blender 95 Very Loud Garbage Disposal 90 Very Loud 4 times as loud Freight Cars; Living Room Music 85 Loud Pneumatic Drill; Vacuum Cleaner 80 Loud 2 times as loud Busy Restaurant 75 Moderately Loud Near Freeway Auto Traffic 70 Moderately Loud Reference Average Office 60 Quiet One-half as loud Suburban Street 55 Quiet Light Traffic; Soft Radio Music in Apartment 50 Quiet One-quarter as loud Large Transformer 45 Quiet Average Residence without Stereo Playing 40 Faint One-eighth as loud Soft Whisper 30 Faint Rustling Leaves 20 Very Faint Human Breathing 10 Very Faint Threshold of Hearing 0 Very Faint Source: Compiled by YDCG 24 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 7 YANCHAR DESIGN & CONSULTING GROUP Human response to sound is highly individualized. Annoyance is the most common issue regarding community noise. The percentage of people claiming to be annoyed by noise generally increases with the environmental sound level. However, many factors also influence people’s response to noise. The factors can include the character of the noise, the variability of the sound level, the presence of tones or impulses, and the time of day of the occurrence. Additionally, non-acoustical factors, such as the person’s opinion of the noise source, the ability to adapt to the noise, the attitude towards the source and those associated with it, and the predictability of the noise, all influence people’s response. As such, response to noise varies widely from one person to another and with any particular noise, individual responses would range from “not annoyed” to “highly annoyed.” RANGE OF NOISE Since the range of intensities that the human ear can detect is so large, the scale frequently used to measure intensity is a scale based on multiples of 10, the logarithmic scale. The scale for measuring intensity is the decibel scale. Each interval of 10 decibels indicates a sound energy ten times greater than before, which is perceived by the human ear as being roughly twice as loud. (1) The most common sounds vary between 40 dBA (very quiet) to 100 dBA (very loud). Normal conversation at three feet is roughly at 60 dBA, while loud jet engine noises equate to 110 dBA at approximately 100 feet, which can cause serious discomfort. Another important aspect of noise is the duration of the sound and the way it is described and distributed in time. NOISE DESCRIPTORS Environmental noise descriptors are generally based on averages, rather than instantaneous, noise levels. The most commonly used figure is the equivalent level (Leq). Equivalent sound levels are not measured directly but are calculated from sound pressure levels typically measured in A-weighted decibels (dBA). The equivalent sound level (Leq) represents a steady state sound level containing the same total energy as a time varying signal over a given sample period. Peak hour or average noise levels, while useful, do not completely describe a given noise environment. Noise levels lower than the peak hour may be disturbing if they occur during times when quiet is most desirable, namely evening and nighttime (sleeping) hours. To account for this, the Community Noise Equivalent Level (CNEL), representing a composite twenty-four-hour noise level is utilized. The CNEL is the weighted average of the intensity of a sound, with corrections for time of day, and averaged over 24 hours. The time-of-day corrections require the addition of 5 decibels to dBA Leq sound levels in the evening from 7 p.m. to 10 p.m., and the addition of 10 decibels to dBA Leq sound levels at night between 10 p.m. and 7 a.m. These additions are made to account for the noise sensitive time periods during the evening and night hours when sound appears louder. CNEL does not represent the actual sound level heard at any particular time, but rather represents the total sound exposure. 25 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 8 YANCHAR DESIGN & CONSULTING GROUP SOUND PROPAGATION When sound propagates over a distance, it changes in level and frequency content. The manner in which noise reduces with distance depends on the following factors: GEOMETRIC SPREADING Sound from a localized source (i.e., a stationary point source) propagates uniformly outward in a spherical pattern. The sound level attenuates (or decreases) at a rate of 6 dB for each doubling of distance from a point source. Highways consist of several localized noise sources on a defined path and hence can be treated as a line source, which approximates the effect of several point sources. Noise from a line source propagates outward in a cylindrical pattern, often referred to as cylindrical spreading. Sound levels attenuate at a rate of 3 dB for each doubling of distance from a line source. GROUND ABSORPTION The propagation path of noise from a highway to a receptor is usually very close to the ground. Noise attenuation from ground absorption and reflective wave canceling adds to the attenuation associated with geometric spreading. Traditionally, the excess attenuation has also been expressed in terms of attenuation per doubling of distance. This approximation is usually sufficiently accurate for distances of less than 200 ft. For acoustically hard sites (i.e., sites with a reflective surface between the source and the receptor, such as a parking lot or body of water), no excess ground attenuation is assumed. For acoustically absorptive or soft sites (i.e., those sites with an absorptive ground surface between the source and the receptor such as soft dirt, grass, or scattered bushes and trees), an excess ground attenuation value of 1.5 dB per doubling of distance is normally assumed. When added to the cylindrical spreading, the excess ground attenuation results in an overall drop-off rate of 4.5 dB per doubling of distance from a line source. ATMOSPHERIC EFFECTS Receptors located downwind from a source can be exposed to increased noise levels relative to calm conditions, whereas locations upwind can have lowered noise levels. The effect due to wind conditions is typically 5 dB or less. Sound levels can be increased at large distances (e.g., more than 500 ft) due to atmospheric temperature inversion (i.e., increasing temperature with elevation). Air temperature usually decreases with height. Temperature inversion is a reversal of the normal condition when cool air at the surface is overlain by a layer of hot air. This normally occurs in the evening and during the winter. Other factors such as air temperature, humidity, and turbulence can also have significant effects. SHIELDING A large object or barrier in the path between a noise source and a receptor can substantially attenuate noise levels at the receptor. The amount of attenuation provided by shielding depends on the size of the object and the frequency content of the noise source. Shielding by trees and other such vegetation typically only has an “out of sight, out of mind” effect. That is, the perception of noise impact tends to decrease when vegetation blocks the line-of-sight to nearby resident. However, for vegetation to provide a substantial, or even noticeable, noise reduction, the vegetation area must be at least 15 feet in height, 100 feet wide and dense enough to completely obstruct the line-of sight between the source and the receiver. This size of vegetation may provide up to 5 dBA of noise reduction. The FHWA does not consider the planting of vegetation to be a noise abatement measure. 26 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 9 YANCHAR DESIGN & CONSULTING GROUP TRAFFIC NOISE PREDICTION Vehicle noise is a combination of the noise produced by the engine, exhaust, and tires on the roadway. According to the Highway Traffic Noise Analysis and Abatement Policy and Guidance, provided by the Federal Highway Administration (FHWA), the level of traffic noise depends on three primary factors: the volume of the traffic, the speed of the traffic, and the vehicle mix within the flow of traffic. Generally, the loudness of traffic noise is increased by heavier traffic volumes, higher speeds, and a greater number of trucks. (3) A doubling of the traffic volume, assuming that the speed and vehicle mix do not change, results in a noise level increase of 3 dBA. The vehicle mix on a given roadway may also have an effect on community noise levels. As the number of medium and heavy trucks increases and becomes a larger percentage of the vehicle mix, adjacent noise level impacts will increase. NOISE BARRIER ATTENUATION Effective noise barriers can reduce noise levels by 10 to 12 dBA, cutting the loudness of traffic noise in half. A noise barrier is most effective when placed close to the noise source or receptor. Noise barriers, however, do have limitations. For a noise barrier to work, it must be high enough and long enough to block the path of the noise source. SOUND ASSESSMENT METRICS The description, analysis, and reporting of sound levels is made difficult by the complexity of human response to sound and the myriad of metrics that have been developed for describing sound impacts. Each of these metrics attempts to quantify sound levels with respect to human response. Most of the metrics use the A-Weighted sound level to quantify sound impacts on humans. As previously identified, A-Weighting is a frequency weighting that accounts for human sensitivity to different frequencies. Human response to sound is highly individualized. Annoyance is the most common issue regarding community noise. The percentage of people claiming to be annoyed by noise generally increases with the environmental sound level. However, many factors also influence people’s response to noise. The factors can include the character of the noise, the variability of the sound level, the presence of tones or impulses, and the time of day of the occurrence. Additionally, non-acoustical factors, such as the person’s opinion of the noise source, the ability to adapt to the noise, the attitude towards the source and those associated with it, and the predictability of the noise, all influence people’s response. As such, response to noise varies widely from one person to another and with any particular noise, individual responses would range from “not annoyed” to “highly annoyed.” Because sound levels can vary over a short period of time, a method for describing either the average character of the sound or the statistical behavior of the variations must be utilized. Most commonly, environmental sounds are described in terms of an average level that has the same acoustical energy as the summation of all the time-varying events. This energy-equivalent sound descriptor is called Leq. The most common averaging period is hourly, but Leq can describe any series of sound events of arbitrary duration. The scientific instrument used to measure sound is the sound level meter. Sound level meters can accurately measure environmental sound levels to within about plus or minus 0.1 dBA. Various computer models are used to predict environmental sound levels from sources, such as roadways and airports. The accuracy of the models depends upon the distance the receptor is from the sound source. Close to the sound source, the models are accurate to within about plus or minus 1 to 2 dBA. 27 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 10 YANCHAR DESIGN & CONSULTING GROUP REGULATORY SETTING Public agencies have established noise guidelines and standards to protect citizens from potential hearing damage and various other adverse physiological and social effects associated with noise. The following discusses applicable noise regulations where potential project impacts could occur. STATE Title 24 of the California Code of Regulations (California Building Standards Code) requires that residential structures, other than detached single-family dwellings, be designed to prevent the intrusion of exterior noise so that the interior CNEL with windows closed, attributable to exterior sources, shall not exceed 45 dBA in any habitable room. CITY OF NEWPORT BEACH GENERAL PLAN The City of Newport Beach General Plan’s Noise Element is a tool for including noise control in the planning process in order to maintain compatible land use with environmental noise levels. It is the guiding document for the City’s noise policy and is designed to protect residents and businesses from excessive and persistent noise intrusions. The Noise Element follows the revised State guidelines in Section 46050.1 of the California Health and Safety Code. The element quantifies the community noise environment in terms of noise exposure contours for both near and long-term levels of growth and traffic activity. The project will not produce an increase in traffic and therefore will not produce an increase in traffic related noise levels. The following General Plan goals apply to this project: Goal N4, Minimization of Non-Transportation-Related Noise, is focused on minimizing noise impacts on sensitive noise receptors. Policy N4.1, Stationary Noise Sources, requires the enforcement of interior and exterior noise standards outlined in the City’s Noise Ordinance. Policy N4.6, Maintenance or Construction Activities, requires the enforcement of the Noise Ordinance noise limits and limits hours of maintenance or construction activity in or adjacent to residential areas, including noise that results from in-home hobby or work-related activities. Goal N5, Minimized Excessive Construction-related Noise, addresses construction noise. Policy N5.1, Limiting Hours of Activity, promotes enforcing the limits on hours of construction activity; these limits are in Section 10.26.035D of the City’s Noise Ordinance, as discussed below. 28 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 11 YANCHAR DESIGN & CONSULTING GROUP CITY OF NEWPORT BEACH MUNICIPAL CODE The Noise Ordinance is designed to control unnecessary, excessive, and annoying sounds from sources on private property by setting limits that cannot be exceeded at adjacent properties. The Noise Ordinance requirements are not applicable to mobile noise sources (such as heavy trucks) that are traveling on public roadways. Control of the mobile noise sources on public roads is preempted by federal and State laws. However, the Noise Ordinance does apply to vehicles while they are on private property. Section 10.26.025 of the Noise Ordinance specifies exterior noise levels that cannot be exceeded for a specified period of time at specified noise zones. The city-adopted exterior and interior noise level limits are presented in Table 2. If the ambient noise level exceeds the standards shown in Table 2, the ambient noise shall be the standard. These standards should not be exceeded for a cumulative period of more than 15 minutes in any hour; or the noise standard plus 20 dBA for any period of time. If the measurement location is on the boundary between two different noise zones, the lower noise level standard applicable to the noise zone should apply. HEATING, VENTILLATION AND AIR CONDITIONING (HVAC) UNITS Section 10.26.045 of the City’s Noise Ordinance specifies that new permits for HVAC equipment in or adjacent to residential areas shall be issued only where installations can be shown by computation, based on the sound rating of the proposed equipment, not to exceed an A-weighted sound pressure level of 50 dBA, or not to exceed an A-weighted sound pressure level of 55 dBA and be installed with a timing device that will deactivate the equipment during the hours of 10:00 PM to 7:00 AM. 29 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 12 YANCHAR DESIGN & CONSULTING GROUP TABLE 2 CITY OF NEWPORT BEACH NON-VEHICULAR NOISE ORDINANCE STANDARDS Zon e Noise Metric Allowable Noise Level 7 AM to 10 PM (daytime) 10 PM to 7 AM (nighttime) Exterior Noise Standards I Residential: Single- family, 2- or multi-family Leq (15 min) 55 dBA 50 dBA Lmax 75 dBA 70 dBA II Commercial Leq (15 min) 65 dBA 60 dBA Lmax 85 dBA 80 dBA III Residential Portions of Mixed- Use Properties Leq (15 min) 60 dBA 50 dBA Lmax 80 dBA 70 dBA IV Industrial and Manufacturing Leq (15 min) 70 dBA 70 dBA Lmax 90 dBA 90 dBA Interior Noise Standards I Residential Leq (15 min) 45 dBA 40 dBA Lmax 65 dBA 60 dBA III Residential Portions of Mixed- Use Properties Leq (15 min) 45 dBA 45 dBA Lmax 65 dBA 65 dBA Leq: equivalent noise level; min: minutes; dBA: A-weighted decibels; Lmax: highest sound level Note: If the ambient noise level exceeds the resulting standard, the ambient shall be the standard. a Residential uses within 100 feet of a commercial property where noise is from said commercial property. Source: Newport Beach 2022 CONSTRUCTION NOISE Section 10.26.035D of the City’s Noise Ordinance exempts noise sources associated with construction, repair, remodeling, demolition, or grading of any real property from the City’s Noise Ordinance standards shown in Table 2. These activities are subject to the provisions of Chapter 10.28, which prohibits construction activities that generate loud noise that disturbs, or could disturb, a person of normal sensitivity who works or resides in the vicinity except during weekdays between the hours of 7:00 AM to 6:30 PM, and Saturdays between the hours of 8:00 AM to 6:00 PM. 30 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 13 YANCHAR DESIGN & CONSULTING GROUP NOISE MEASUREMENTS Some of the data from October 3 was skewed due to gardening activities in the immediate vicinity. Additional measurements were made on the night of October 5 and the morning of October 6. The measurement location and data are included in appendix F and G. These measurements are summarized in Table 3. TABLE 3 AMBIENT NOISE MEASUREMENTS Except for the gardening activities, most of the noise generated during the day was due to light truck traffic on Country Club Drive and occasional aircraft overflights. There was no traffic observed on Country Club Drive (see Figure 4) during the night. The majority of the increase in noise over the minimum was due to light traffic on Bison Avenue. NOISE CALCULATIONS Calculations were performed to quantify the expected transmission loss of the manufactured steel building using Insul software. (see appendix E) The individual estimated sound levels were combined using logarithmic addition according to the formula: Based on these calculations, the noise level predicted at the exterior of the building from the four vacuum pumps and single heat exchanger would be 48.8 dBA. This is in agreement with the manufacturer’s specification of 50 dBA. This calculation is included in Table 4. Date Time LAEQ LAmin LAmax LA25% 10/3/2022 9:03 56.5 44.8 70.3 54.6 10/5/2022 22:44 35.6 33.6 39.6 36.5 10/6/2022 10:39 55.2 35.9 67.3 57.1 31 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 14 YANCHAR DESIGN & CONSULTING GROUP TABLE 4 PREDICTED SOUND LEVEL AT BUILDING EXTERIOR DUE TO VACUUM PUMPS AND HEAT EXCHANGER Calculations were also performed to predict the exterior noise produced by 4 vacuum pumps and 1 heat exchanger at the nearest separate residential property line at 61 Hillside Drive on the opposite side of County Club Drive. The combined exterior A weighted sound pressure level as calculated in Table 4 is reduced at 61 Hillside Drive due to inverse square law attenuation of approximately 6 dB for each doubling of the distance according to the formula: dL = Lp2 - Lp1 = 10 log (R2 / R1)2 = 20 log (R2 / R1) Where dL = difference in sound pressure level (dBA) Lp1 = sound pressure level at location 1 (dBA) Lp2 = sound pressure level at location 2 (dBA) R1 = distance from source to location 1 (ft) R2 = distance from source to location 2 (ft) This level was determined to be 23.9 dBA which is considerably lower than the minimum ambient noise level during night hours as tabulated in Table 3. This calculation is included in Table 5. Equipment Vacuum Pump 1 Vacuum Pump 2 Vacuum Pump 3 Vacuum Pump 4 Heat Exchanger A Weighted Sound Level Rating 74 74 74 74 77 Building Sound Transmission Loss 33 33 33 33 33 Estimated Exterior A Weighted Sound Pressure Level 41.0 41.0 41.0 41.0 44.0 Estimated Combined Exterior A Weighted Sound Pressure Level 48.8 32 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 15 YANCHAR DESIGN & CONSULTING GROUP Equipment Vacuum Pump 1 Vacuum Pump 2 Vacuum Pump 3 Vacuum Pump 4 Heat Exchanger A Weighted Sound Level Rating 74 74 74 74 77 Building Sound Transmission Loss 33 33 33 33 33 Inverse Square Law Attenuation 25.5 25.5 25.5 25.5 25.5 Estimated A Weighted Sound Pressure Level 15.5 15.5 15.5 15.5 18.5 Estimated Combined Exterior A Weighted Sound Pressure Level 23.9 A calculation was also performed to predict the noise level of the existing air conditioning condenser and then the combined sound level of the new equipment and the existing condenser at 61 Hillside Drive. This level was determined to be 34.9 dBA. The contribution of the new equipment is less than 0.5 dBA. This will result in an imperceptible change in the ambient noise level. This calculation is contained in Table 6. TABLE 6 LEVEL OF EXISTING HVAC CONDENSER AT 61 HILLSIDE DRIVE Equipment Carrier 38TUA024 A Weighted Sound Level Rating from Manufacturer Specification Data 72 Equipment Location Factor 3 Subtotal 75 Inverse Square Law Attenuation 40.5 Estimated A Weighted Sound Pressure Level of Existing Air Conditioning Condenser 34.5 Estimated A Weighted Sound Pressure Level of Existing Air Conditioning Condenser and New Equipment 34.9 TABLE 5 PREDICTED SOUND LEVEL AT 61 HILLSIDE DRIVE DUE TO VACUUM PUMPS AND HEAT EXCHANGER 33 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 16 YANCHAR DESIGN & CONSULTING GROUP CONSTRUCTION RELATED IMPACTS Noise levels from construction activities for the proposed project may range up to 85 dBA adjacent to the project site for very limited times. The activities include clearing the sire, pouring the foundation slab and placing the off-site manufactured building on the slab. Impacts from the proposed project would be potentially adverse; however, compliance with the City’s construction hours requirement would reduce the impact to a less than significant level. Short-term noise impacts would be associated with excavation and erecting of building on site during construction of the proposed project. Construction related short-term noise levels would be higher than existing ambient noise levels in the project area but would no longer occur once construction of the project is completed. Construction is completed in discrete steps, each of which has its own mix of equipment and, consequently, its own noise characteristics. These various sequential phases would change the character of the noise generated on the site and, therefore, the noise levels surrounding the site as construction progresses. Despite the variety in the type and size of construction equipment, similarities in the dominant noise sources and patterns of operation allow construction related noise ranges to be categorized by work phase. Table 7 lists typical construction equipment noise levels recommended for noise impact assessments, based on a distance of 50 feet between the equipment and a noise receptor. The site preparation phase, which includes excavation of the site, tends to generate the highest noise levels. 34 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 17 YANCHAR DESIGN & CONSULTING GROUP TABLE 7 MAXIMUM NOISE LEVELS GENERATED BY CONSTRUCTION EQUIPMENT Type of Equipment Acoustical Use Factor1 Lmax at 50 Feet (dBA) Concrete Saw 20 90 Crane 16 81 Concrete Mixer Truck 40 79 Backhoe 40 78 Dozer 40 82 Excavator 40 81 Forklift 40 78 Paver 50 77 Roller 20 80 Tractor 40 84 Water Truck 40 80 Grader 40 85 General Industrial Equipment 50 85 Note: 1 – Acoustical Use Factor (percent): Estimates the fraction of time each piece of construction equipment is operating at full power (i.e., its loudest condition) during a construction operation. Source: Federal Highway Administration, Roadway Construction Noise Model (FHWA-HEP-05-054), January 2006. The closest existing or planned noise-sensitive uses such as homes adjacent to the project site are more than 125 feet from the project boundary. These uses may be subject to short-term, intermittent, maximum noise generated by construction activities on site. Compliance with the construction hours specified in the City's Noise Ordinance would reduce the construction noise impacts to a less than significant level. 35 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 18 YANCHAR DESIGN & CONSULTING GROUP RECOMMENDED CONSTRUCTION TECHNIQUES To achieve the expected interior noise levels it is necessary that good construction techniques and good materials be used for construction of the building. A significant increase in noise levels over expected levels could occur if workmanship or materials are of inferior quality. This is especially true for the doors since they are the weakest acoustical element of the exterior shell. For the metal equipment building, we recommend that notes and details be included on the design drawings to ensure that the construction details achieve the insulation potential of the basic building assemblies. The following indicates the recommended additional notes and details: Use permanently non-hardening sealant around perimeter of door frames. Select a door assembly with effective nonporous gaskets or weatherstripping to minimize air infiltration and sound leakage. • Provide airtight construction at all exterior walls with acoustical or other non-hardening sealant at floor plates. Use door jamb and head gasketing and door bottom gasketing at entry doors to seal the solid core doors against weather and sound. Caulk entry door thresholds as they are placed. All of the above is required to comply with the California Building Code Thermal Insulation requirements. To the extent feasible, any penetrations in the exterior walls having a direct view of the should be minimized and sealed. 36 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 19 YANCHAR DESIGN & CONSULTING GROUP CONCLUSION The sound level at the exterior of the prefabricated metal building was calculated to be 48.8 dBA. The manufacturer’s specification is less than 50 dBA. Therefore the sounded propagated from the metal building is will be less than the maximum permissible by the City of Newport Beach Municipal Code at the closest residential property line. The two nearest condos on the property are 92 and 96 Hartford. Inverse square attenuation will reduce the 48.8 dBA level to less than 29 dBA when no outdoor air condenser is operating. This will result in an increase the ambient sound level at those structures to less and 1 dBA which is less than significant. The level calculated at the nearest separate residential property line of 61 Hillside Drive is predicted to be 34.9 dBA. The increase in ambient sound level is calculated to be less than 0.5 dBA which is also less than significant. Therefore the proposed Project will meet the standards of the City of Newport Beach Municipal Code and the increase in ambient sound level will be less than significant. No additional mitigation measures will be required. Respectfully submitted, Yanchar Design & Consulting Group Carl J. Yanchar President 37 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 19 YANCHAR DESIGN & CONSULTING GROUP APPENDIX A 38 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 20 YANCHAR DESIGN & CONSULTING GROUP DESCRIPTION OF ACOUSTICAL TERMS A-Weighted Sound Level (dBA): The sound pressure level in decibels as measured on a sound level meter using the internationally standardized A-weighting filter or as computed from sound spectral data to which A-weighting adjustments have been made. A-weighting de-emphasizes the low and very high frequency components of the sound in a manner similar to the response of the average human ear. A-weighted sound levels correlate well with subjective reactions of people to noise and are universally used for community noise evaluations. Acoustic; Acoustical: Acoustic is usually used when the term being qualified designates something that has the properties, dimensions, or physical characteristics associated with sound waves (e.g., acoustic power); acoustical is usually used when the term which it modifies does not explicitly designate something that has the properties, dimensions, or physical characteristics of sound (e.g., acoustical material). Airborne Sound: Sound that travels through the air, as opposed to structure-borne sound. Ambient Noise: The prevailing general noise existing at a location or in a space, which usually consists of a composite of sounds from many sources near and far. Attenuation: The decrease in level of sound, usually from absorption, divergence, scattering, or the cancellation of the sound waves. Average sound level (Leq): The level of a steady sound which, in a stated time period and at a stated location, has the same A- weighted sound energy as the time-varying sound. Unit: decibel. Background noise: The total noise from all sources other than a particular sound that is of interest (e.g., other than the noise being measured or other than the speech or music being listened to). Community Noise Equivalent Level (CNEL): The Leq of the A-weighted noise level over a 24-hour period with a 5 dB penalty applied to noise levels between 7 p.m. and 10 p.m. and a 10 dB penalty applied to noise levels between 10 p.m. and 7 a.m. Day-Night Sound Level (Ldn): The Leq of the A-weighted noise level over a 24-hour period with a 10 dB penalty applied to noise levels between 10 p.m. and 7 a.m. 39 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 21 YANCHAR DESIGN & CONSULTING GROUP Decibel (dB): The decibel is a measure on a logarithmic scale of the magnitude of a particular quantity (such as sound pressure, sound power, sound intensity) with respect to a reference quantity. Energy Equivalent Level (Leq): The level of a steady noise which would have the same energy as the fluctuating noise level integrated over the time period of interest. Leq is widely used as a single-number descriptor of environmental noise. Leq is based on the logarithmic or energy summation and it places more emphasis on high noise level periods than does L50 or a straight arithmetic average of noise level over time. This energy average is not the same as the average sound pressure levels over the period of interest, but must be computed by a procedure involving summation or mathematical integration. Field Impact Insulation Class (FIIC): A single number rating similar to the IIC except that the impact sound pressure levels are measured in the field. Field Sound Transmission Class (FSTC): A single number rating similar to STC, except that the transmission loss values used to derive the FSTC are measured in the field. All sound transmitted from the source room to the receiving room is assumed to be through the separating wall or floor-ceiling assembly. Frequency (Hz): The number of oscillations per second of a periodic noise (or vibration) expressed in Hertz (abbreviated Hz). Frequency in Hertz is the same as cycles per second. Impact Isolation Class (IIC): A single number rating used to compare the effectiveness of floor-ceiling assemblies in providing reduction of impact generated sounds such as footsteps. It is derived from the measurement of impact sound pressure levels across a series of 16 test bands using a standardized tapping machine. Noise: Any disagreeable or undesired sound, i.e., unwanted sound. Noise level: Same as sound level. Usually used to describe the sound level of an unwanted sound. Noise reduction (NR): The difference in sound pressure level between any two points along a path of sound propagation. 40 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 22 YANCHAR DESIGN & CONSULTING GROUP Noise Isolation Class (NIC): A single number rating derived from measured values of noise reduction between two enclosed spaces that are connected by one or more paths. The NIC is not adjusted or normalized to a standard reverberation time. Normalized Noise Isolation Class (NNIC): A single number rating similar to the NIC, except that the measured noise reduction values are normalized to a reverberation time of 1/2 second. Outdoor-Indoor Transmission Class (OITC): A single number classification, specified by the American Society for Testing and Materials (ASTM E 1332 issued 1994), that establishes the A-weighted sound level reduction provided by building facade components (walls, doors, windows, and combinations thereof), based upon a reference sound spectrum that is typical of air, road, and rail transportation sources. The OITC is the preferred rating when exterior facade components are exposed to noise environments dominated by transportation sources. Octave Band - 1/3 Octave Band: One octave is an interval between two sound frequencies that have a ratio of two. For example, the frequency range of 200 Hz to 400 Hz is one octave, as is the frequency range of 2000 Hz to 4000 Hz. An octave band is a frequency range that is one octave wide. A standard series of octaves is used in acoustics, and they are specified by their center frequencies. In acoustics, to increase resolution, the frequency content of a sound or vibration is often analyzed in terms of 1/3 octave bands, where each octave is divided into three 1/3 octave bands. Sound: (1) A change in air pressure that is capable of being detected by the human ear. (2) The hearing sensation excited by a change in air pressure. Sound Absorption Coefficient: The absorption coefficient of a material is the ratio of the sound absorbed by the material to that absorbed by an equivalent area of open window. The absorption coefficient of a perfectly absorbing surface would be 1.0 while that for concrete or marble slate is approximately 0.01 (a perfect reflector would have an absorption of 0.00). Sound Level: Ten times the logarithm to the base 10 of the square of the ratio of the frequency- weighted (and time- averaged) sound pressure to the reference sound pressure of 20 micro pascals. The frequency- weightings and time-weighting employed should be specified; if they are not specified, it is understood that A-frequency-weighting is used and that an averaging time of 0.125 is used. Unit: decibel (dBA). 41 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 23 YANCHAR DESIGN & CONSULTING GROUP Sound Pressure Level (SPL): The sound pressure level of sound in decibels is 20 times the logarithm to the base of 10 of the ratios of the RMS value of the sound pressure to the RMS value of a reference sound pressure. The standard reference sound pressure is 20 micro-pascals as indicated in ANSI S1.8-1969, "Preferred Reference Quantities for Acoustical Levels". Sound Transmission Class (STC): STC is a single number rating, specified by the American Society for Testing and Materials, which can be used to measure the sound insulation properties for comparing the sound transmission capability, in decibels, of interior building partitions for noise sources such as speech, radio, and television. It is used extensively for rating sound insulation characteristics of building materials and products. Structure-Borne Sound: Sound propagating through building structure. Rapidly fluctuating elastic waves in gypsum board, joists, studs, etc. Statistical Distribution Terms: L99 and L90 are descriptors of the typical minimum or "residual" background noise (or vibration) levels observed during a measurement period, normally made up of the summation of a large number of sound sources distant from the measurement position and not usually recognizable as individual noise sources. Generally, the prevalent source of this residual noise is distant street traffic. L90 and L99 are not strongly influenced by occasional local motor vehicle pass-bys. However, they can be influenced by stationary sources such as air conditioning equipment. L50 represents a long-term statistical median noise level over the measurement period and does reveal the long-term influence of local traffic. L10 describes typical or average levels for the maximum noise levels occurring, for example, during nearby pass bys of trains, trucks, buses and automobiles, when there is relatively steady traffic. Thus, while L10 does not necessarily describe the typical maximum noise levels observed at a point, it is strongly influenced by the momentary maximum noise level occurring during vehicle pass-bys at most locations. L1, the noise level exceeded for 1% of the time is representative of the occasional, isolated maximum or peak level which occurs in an area. L1 is usually strongly influenced by the maximum short-duration noise level events which occur during the measurement time period and are often determined by aircraft or large vehicle pass-bys. 42 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 24 YANCHAR DESIGN & CONSULTING GROUP APPENDIX B 43 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 25 YANCHAR DESIGN & CONSULTING GROUP COMMON SOUND LEVELS AND THEIR NOISE SOURCES Source: Compiled by YDCG Noise Source A-Weighted Sound Level in Decibels Noise Environments Subjective Evaluations Near Jet Engine 140 Deafening 128 times as loud Civil Defense Siren 130 Threshold of Pain 64 times as loud Hard Rock Band 120 Threshold of Feeling 32 times as loud Accelerating Motorcycle at a Few Feet Away 110 Very Loud 16 times as loud Pile Driver; Noisy Urban Street/Heavy City Traffic 100 Very Loud 8 times as loud Ambulance Siren; Food Blender 95 Very Loud Garbage Disposal 90 Very Loud 4 times as loud Freight Cars; Living Room Music 85 Loud Pneumatic Drill; Vacuum Cleaner 80 Loud 2 times as loud Busy Restaurant 75 Moderately Loud Near Freeway Auto Traffic 70 Moderately Loud Average Office 60 Quiet One-half as loud Suburban Street 55 Quiet Light Traffic; Soft Radio Music in Apartment 50 Quiet One-quarter as loud Large Transformer 45 Quiet Average Residence without Stereo Playing 40 Faint One-eighth as loud Soft Whisper 30 Faint Rustling Leaves 20 Very Faint Human Breathing 10 Very Faint Threshold of Hearing 0 Very Faint 44 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 26 YANCHAR DESIGN & CONSULTING GROUP APPENDIX C MECHANICAL EQUIPMENT SUBMITTALS 45 3BA9620 RUTHERFORD, NJ 07070 WWW.AIRTECHUSA.COM TEL: (888) 222-9940 FAX: (201) 569-1696 Vacuum/Pressure Regenerative Blower 3BA9620-0416 Features: Cooler running, outboard bearing provides maintenance-free operation Environmentally friendly oil-free technology Extremely quiet operation • • • All motors are standard TEFC with Class F insulation, UL recognized, CE Compliant Explosion-Proof motors available Custom construction blowers are available Rugged die-cast aluminum construction • • • Performance Curve for Vacuum Performance Curve for Compressor JI 0 50 100 150 200 250 300 350 400 I/J 050100150200250300350400 J I 0 50 100 150 200 250 300 350 400 I/J 050100150200250300350400 J I 0 50 100 150 200 250 300 350 400 I/J 050100150200250300350400 87 Hz72 Hz 50 Hz60 Hz 37 Hz Total pressure difference Dp [inch H2O]Vacuum Pressurep [inch H2O] PressureVacuum Total pressure difference Dp [inch H2O]p [inch H2O] Vacuum Total pressure difference Dp [inch H2O] Pressurep [inch H2O][F][HP]Power consumption ]h/³m[V yticapac noitcuStfahs pmup ta PTemperature riseof conveyed air0 100 200 300 400 500 0 10 20 30 40 50 0 100 200 300 400 500[cfm].T[F][HP]Power consumption ]h/³m[V yticapac noitcuStfahs pmup ta PTemperature riseof conveyed air0 100 200 300 400 500 0 10 20 30 40 50 0 100 200 300 400 500[cfm].T46 3BA9620 RUTHERFORD, NJ 07070 WWW.AIRTECHUSA.COM TEL: (888) 222-9940 FAX: (201) 569-1696 Vacuum/Pressure Regenerative Blower 3BA9620-0416 Dimensions 3BA96207AT66 Permissable TotalDifferential Pressure VacuumInch H2O -212 -217 -204 -212 -217 -204 PressureInch H2O 253 212 120 357 325 253 Weight(lbs) 320 320 320 370 370 370 SoundLeveldB(A) 70 74 84 70 74 84 CurveLetter 1~50/60 IP155 insulation material class F I I I J J J 345Y...415Y 415Y...460Y 345Y...415Y 415Y...460Y InputCurrent (A) 38.0D/22.0Y 38.0D/22.0Y 39.5D 53.0D/31.0Y 53.0D/30.5Y 51.5D InputVoltage (V) 200D...240D 220D...250D 345D...415D 200D...240D 220D...250D 345D...415D Selection & Ordering Data - Type 3BA9620 OrderNumber 3BA96207AT66 3BA96207AT66 3BA96207AT66 3BA96207AT86 3BA96207AT86 3BA96207AT86 Frequency (Hz) 50 60 87 50 60 87 RatedPower (HP) 14.75 16.90 25.50 20.10 23.20 34.80 47 Made in the USA Products Pricing Calculators About Contact AA Series Heat Exchanger AA Series heat exchangers cool low pressure gas streams with ambient air. These compact air cooled units are ideal for locations with limited access to cooling water and have significantly lower operating costs compared to heat exchangers that require a cooling water system. They feature a TEFC 230/460 VAC, 3 phase motor, a heavy-duty cooling fan and an OSHA approved fan guard. Alternate motors are available upon request. The exhaust hood and venturi frame are galvanized steel. Use our interactive online form to get a fast and accurate quote! Common Applications Aftercooling Roots type (rotary-lobe) and multistage centrifugal blowers used in pneumatic conveying, biogas, coal-seam methane, and wastewater aeration systems. Core Construction The aluminum plate-fin heat exchanger core is furnace brazed with alternating finned flow channels. Process gas flows in horizontal channels, and ambient cooling air flows upward, through vertical channels. The process stream enters and exits through rectangular aluminum headers, which are welded to the core. Operational Considerations The process stream must be filtered to ensure particulate will not obstruct the passages. If necessary, the service side can usually be cleaned with a soapy water wash. The process channels should not be considered cleanable due to their long enclosed flow length. Installation Considerations Pulsating flow, such as that produced by rotary lobe blowers should be dampened by a chambered silencer. AA Series heat exchangers dissipate heat from the process stream to the ambient environment. They are designed for outdoor installation. If installed indoors, the area should be very well ventilated. Performance Xchanger engineers use a computer model to analyze heat exchanger performance based on the best available engineering practice. A database with fan performance data allows us to select the best fan for the application. Models AA-250, AA-400, AA-500, AA-750, AA-1000, AA-1750, AA-2000, AA-2750 & AA-3500. Special Configurations Can be found on our Custom Designs page. Air cooled heat exchanger (blower aftercooler) isometric drawing and typical configurations: Sample data sheet: 48 Gallery Product Applications Request a Quote! AA Series Contact us today to discuss your heat C Series exchanger or blower aftercooler application HP Series with a design engineer, or use our interactive LC Series online form to get a fast and accurate quote! OC Series TV Series Have a request or specifications to send by email? Send it to: info@xchanger.com An applications engineer will review your request and will typically respond within one business day. Prefer to speak with an engineer directly? Give us a call! (952) 933-2559 Recently Added Filtered Inlet Air Heater For Drying Process Exhaust Hood Painting & Protection Soil Vapor Extraction: Carbon Bed Precoolers Blower Aftercooler with Ducted Fan Air Flow Vertical Up Emissions Stack Gas Heater (952) 933-2559 info@xchanger.com Privacy Policy ©2022 Xchanger Inc. 49 7 Electrical data Performance summary * Tested Combination NOTES: 1. Ratings are net values reflecting the effects of circulating fan motor heat. Supplemental electric heat is not included. 2. Tested outdoor/indoor combinations have been tested in accordance with DOE test procedures for central air conditioners. Ratings for other combinations are determined under DOE computer simulation procedures. 3. Determine actual CFM values obtainable for your system by referring to fan performance data in fan coil or furnace coil literature. A-weighted sound power (dBA) UNIT SIZE- SERIES V/PH OPER VOLTS* COMPR FAN FLA MCA 60°C MIN WIRE SIZE† 75°C MIN WIRE SIZE† MAX LENGTH (FT) 60°/75°C‡ MAX LENGTH (m) 60°/75°C‡ MAX FUSE** OR CKT BKR AMPSMax Min LRA RLA 024-75 230-1 253 207 72.5 15.0 0.6 19.4 14 14 38/37 12/11 30 036-96 400-3 440 360 46.0 6.4 0.7 8.7 14 14 181/172 55/52 20 048-96 63.0 7.9 0.7 10.7 14 14 147/140 45/42 15 060-96 74.0 9.0 0.7 11.9 14 14 132/126 40/38 20 UNIT SIZE INDOOR MODEL NOMINAL AIRFLOW COOLING CAP @ 95°F (35°C) COOLING CAP 115°F (46°C) Rated Capacity Power kW Rated EER Rated Capacity Power kWCFM L/S BTUH kW BTUH kW 024-75 F(A,B)4(A,B)SF024* 800 380 23,000 6.7 2.34 10.30 20,700 6.1 2.87 F(A,B)4(A,B)SF030 800 380 24,000 7.0 2.33 10.40 21,031 6.2 2.86 FG3ASA024 800 380 23,000 6.7 2.40 9.70 20,023 5.9 2.95 036-96 F(A,B)4(A,B)SF036* 1200 560 35,000 10.3 3.76 10.40 31,600 9.3 4.56 F(A,B)4(A,B)S(F,B)042 1200 560 36,000 10.5 3.71 10.50 32,320 9.5 4.50 FG3ASA036 1200 560 35,000 10.3 3.69 9.80 29,395 8.6 4.48 048-96 F(A,B)4(A,B)S(F,B)048* 1600 750 47,000 13.8 5.12 9.50 42,400 12.4 6.20 F(A,B)4(A,B)S(F,B)060 1600 750 48,000 14.1 5.26 9.50 43,540 12.8 6.37 FG3ASA048 1600 750 46,000 13.5 5.20 9.10 41,100 12.0 6.30 FG3ASA060 1600 750 47,000 13.8 5.25 9.20 42,179 12.4 6.35 060-96 F(A,B)4(A,B)S(F,B)060* 1850 950 57,500 16.8 6.03 9.50 52,100 15.3 7.26 FB4(A,B)SB070 1850 950 59,000 17.3 6.14 9.50 53,364 15.6 7.39 FG3ASA060 1850 950 56,500 16.6 6.00 9.40 51,286 15.0 7.23 UNIT SIZE STANDARD RATING TYPICAL OCTAVE BAND SPECTRUM (without tone adjustment) 125 250 500 1000 2000 4000 8000 024 72 53.5 63.0 65.0 67.0 63.5 59.0 50.5 036 74 58.0 64.0 67.5 67.0 66.0 64.5 59.0 048 75 55.5 63.0 66.5 68.0 68.0 65.0 59.5 060 75 55.5 64.0 69.0 67.0 67.5 65.5 60.0 FLA — Full Load Amps LRA — Locked Rotor Amps MCA — Minimum Circuit Amps RLA — Rated Load Amps *Permissible limits of the voltage range at which the unit will operate satisfactorily. Operation outside these limits may result in unit failure. If wire is applied at ambient greater than 30°C (86°F), consult Table 310-16 of the NEC (ANSI/NFPA 70). The ampacity of nonmetallic-sheathed cable (NM), trade name ROMEX, shall be that of 60°C (140°F) conductors, per the NEC (ANSI/NFPA 70) Article 336-26. All motors/compressors contain internal overload protection. † American wire gage. ‡ Length shown is as measured 1 way along wire path between unit and service panel for a voltage drop not to exceed 2%. ** Time-delay fuse. 50 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 32 YANCHAR DESIGN & CONSULTING GROUP APPENDIX D PREFABRICATED METAL BUILDING PLAN AND DETAILS 51 H2K 52 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 34 YANCHAR DESIGN & CONSULTING GROUP APPENDIX E PREFABRICATED METAL BUILDING TRANSMISSION LOSS CALCULATIONS 53 54 55 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 37 YANCHAR DESIGN & CONSULTING GROUP APPENDIX F MEASUREMENT LOCATION 56 MEASUREMENT LOCATION 57 SOIL VAPOR EXTRACTION SYSTEM / 94 HARTFORD, NEWPORT BEACH October 15, 2022 Page 39 YANCHAR DESIGN & CONSULTING GROUP APPENDIX G MEASUREMENT DATA 58 Number 24 Start Date 10/3/2022 Start Time 9:05:44 AM End Time 9:14:09 AM Duration 00:08:25 Meas Mode Single Input Range Low Input Type Mic SPL Time Weight Fast LN% Freq Weight dBA Overload No UnderRange No Sensitivity 14.82mV/Pa LZeq 70.3 LCeq 69.5 LAeq 64.1 LZFmax 88.6 LCFmax 88.2 LAFmax 82.6 LZFmin 58.7 LCFmin 56.3 LAFmin 42.2 LZE 97.3 LCE 96.5 LAE 91.1 LZpk 96.0 LCpk 95.5 LApk 93.7 LAF1% 76.2 LAF2% 74.1 LAF5% 70.7 LAF8% 66.9 LAF10% 65.1 LAF25% 60.5 LAF50% 55.4 LAF90% 47.0 LAF95% 45.5 LAF99% 43.4 1/1 Oct. (dBA) 31.5 20.0 63 38.1 125 47.5 250 50.9 500 59.6 1000 59.4 2000 56.8 4000 50.4 8000 42.4 FFT (dBA) 1 59 0 -Inf 43.1 31.6 86.2 44.7 129.3 46.0 172.3 44.8 215.4 46.9 258.5 45.3 301.6 46.1 344.7 46.4 387.8 47.4 430.8 48.8 473.9 53.9 517 55.7 560.1 51.5 603.2 54.6 646.3 52.4 689.3 50.1 732.4 48.8 775.5 47.4 818.6 47.9 861.7 47.4 904.8 46.8 947.8 46.6 990.9 47.4 1034 48.5 1077.1 49.2 1120.2 49.9 1163.3 51.0 1206.3 53.9 1249.4 51.0 1292.5 46.1 1335.6 45.6 1378.7 45.8 1421.8 46.7 1464.8 46.6 1507.9 45.3 1551 44.2 1594.1 44.2 1637.2 44.1 1680.3 43.6 1723.3 43.3 1766.4 43.8 1809.5 44.6 1852.6 44.5 1895.7 44.3 1938.8 44.3 1981.8 44.2 2024.9 44.5 2068 43.9 2111.1 42.9 2154.2 42.6 2197.3 42.4 2 60 2240.3 42.2 2283.4 41.7 2326.5 41.4 2369.6 42.0 2412.7 43.6 2455.8 42.7 2498.9 40.4 2541.9 39.2 2585 39.1 2628.1 38.8 2671.2 38.6 2714.3 38.6 2757.4 38.9 2800.4 39.2 2843.5 39.1 2886.6 39.4 2929.7 39.6 2972.8 39.0 3015.9 38.3 3058.9 38.3 3102 38.3 3145.1 37.6 3188.2 37.4 3231.3 37.3 3274.4 37.3 3317.4 37.1 3360.5 36.2 3403.6 36.1 3446.7 35.8 3489.8 35.2 3532.9 34.9 3575.9 35.1 3619 35.0 3662.1 34.9 3705.2 34.7 3748.3 34.2 3791.4 33.8 3834.4 33.5 3877.5 33.4 3920.6 33.2 3963.7 32.9 4006.8 33.0 4049.9 32.5 4092.9 32.0 4136 32.0 4179.1 31.6 4222.2 31.3 4265.3 30.8 4308.4 30.5 4351.4 30.2 4394.5 30.0 4437.6 29.9 3 61 4480.7 30.2 4523.8 29.9 4566.9 29.4 4609.9 29.5 4653 29.5 4696.1 29.6 4739.2 29.5 4782.3 29.4 4825.4 29.4 4868.5 29.8 4911.5 29.7 4954.6 29.6 4997.7 29.6 5040.8 29.5 5083.9 29.5 5127 29.3 5170 29.3 5213.1 29.2 5256.2 29.2 5299.3 29.0 5342.4 28.6 5385.5 28.3 5428.5 28.4 5471.6 27.9 5514.7 27.7 5557.8 27.3 5600.9 26.9 5644 26.4 5687 26.3 5730.1 25.8 5773.2 26.1 5816.3 25.7 5859.4 25.1 5902.5 24.5 5945.5 24.0 5988.6 24.0 6031.7 23.8 6074.8 23.9 6117.9 23.8 6161 23.9 6204 23.9 6247.1 23.7 6290.2 23.7 6333.3 24.3 6376.4 24.6 6419.5 24.8 6462.5 24.9 6505.6 25.3 6548.7 25.8 6591.8 26.3 6634.9 26.4 6678 26.7 4 62 6721 27.0 6764.1 27.1 6807.2 27.2 6850.3 27.4 6893.4 27.5 6936.5 27.5 6979.5 27.3 7022.6 27.2 7065.7 27.4 7108.8 27.5 7151.9 27.4 7195 27.2 7238.1 26.8 7281.1 26.5 7324.2 26.2 7367.3 25.9 7410.4 25.4 7453.5 25.2 7496.6 25.1 7539.6 24.8 7582.7 24.5 7625.8 24.0 7668.9 23.6 7712 23.3 7755.1 23.5 7798.1 23.4 7841.2 23.4 7884.3 23.7 7927.4 23.4 7970.5 23.6 8013.6 23.5 8056.6 23.0 8099.7 22.6 8142.8 22.5 8185.9 22.0 8229 21.7 8272.1 21.6 8315.1 21.5 8358.2 21.2 8401.3 20.9 8444.4 20.7 8487.5 20.6 8530.6 20.7 8573.6 20.6 8616.7 20.6 8659.8 20.6 8702.9 20.2 8746 20.3 8789.1 20.7 8832.1 20.6 8875.2 20.4 8918.3 20.5 5 63 8961.4 20.8 9004.5 20.6 9047.6 20.2 9090.6 20.1 9133.7 20.1 9176.8 20.3 9219.9 20.4 9263 20.3 9306.1 20.1 9349.2 20.0 9392.2 20.0 9435.3 19.8 9478.4 19.6 9521.5 19.6 9564.6 19.7 9607.7 18.9 9650.7 18.9 9693.8 18.9 9736.9 18.7 9780 18.4 9823.1 18.2 9866.2 18.2 9909.2 18.2 9952.3 18.1 9995.4 18.1 10038.5 17.8 10081.6 17.7 10124.7 17.6 10167.7 17.4 10210.8 17.3 10253.9 17.5 10297 17.2 10340.1 16.7 10383.2 16.9 10426.2 17.2 10469.3 17.3 10512.4 17.1 10555.5 16.5 10598.6 16.2 10641.7 16.5 10684.7 16.7 10727.8 16.6 10770.9 16.5 10814 16.7 10857.1 16.7 10900.2 16.3 10943.2 16.2 10986.3 15.7 11029.4 15.4 11072.5 15.3 11115.6 15.5 11158.7 15.2 6 64 11201.7 15.0 11244.8 15.0 11287.9 14.7 11331 14.3 11374.1 14.2 11417.2 14.2 11460.2 14.1 11503.3 14.1 11546.4 13.5 11589.5 13.2 11632.6 13.0 11675.7 12.3 11718.8 12.2 11761.8 11.9 11804.9 11.3 11848 11.1 11891.1 10.7 11934.2 10.7 11977.3 10.6 12020.3 10.3 12063.4 10.2 12106.5 9.8 12149.6 9.5 12192.7 9.1 12235.8 9.0 12278.8 8.6 12321.9 8.1 12365 8.0 12408.1 8.3 12451.2 8.2 12494.3 7.8 12537.3 7.6 12580.4 7.6 12623.5 7.6 12666.6 7.4 12709.7 7.4 12752.8 7.3 12795.8 7.1 12838.9 7.2 12882 7.0 12925.1 6.7 12968.2 6.7 13011.3 6.8 13054.3 7.1 13097.4 7.3 13140.5 7.1 13183.6 7.0 13226.7 7.2 13269.8 7.0 13312.8 6.9 13355.9 6.8 13399 6.6 7 65 13442.1 6.5 13485.2 6.3 13528.3 6.4 13571.3 6.3 13614.4 6.4 13657.5 6.7 13700.6 6.6 13743.7 6.3 13786.8 6.3 13829.8 6.4 13872.9 6.4 13916 6.4 13959.1 6.3 14002.2 6.3 14045.3 6.3 14088.4 6.0 14131.4 5.6 14174.5 5.4 14217.6 5.4 14260.7 5.1 14303.8 4.6 14346.9 4.4 14389.9 4.1 14433 3.6 14476.1 3.5 14519.2 3.4 14562.3 3.0 14605.4 3.0 14648.4 2.7 14691.5 2.3 14734.6 1.9 14777.7 1.7 14820.8 1.4 14863.9 1.0 14906.9 0.9 14950 0.5 14993.1 0.2 15036.2 0.0 15079.3 -0.5 15122.4 -0.7 15165.4 -1.0 15208.5 -1.1 15251.6 -1.3 15294.7 -1.6 15337.8 -1.8 15380.9 -2.1 15423.9 -2.4 15467 -2.6 15510.1 -2.8 15553.2 -2.9 15596.3 -3.1 15639.4 -3.3 8 66 15682.4 -3.8 15725.5 -4.1 15768.6 -4.2 15811.7 -4.4 15854.8 -4.9 15897.9 -5.3 15940.9 -5.3 15984 -5.6 16027.1 -6.0 16070.2 -6.2 16113.3 -6.4 16156.4 -6.8 16199.4 -7.1 16242.5 -7.1 16285.6 -7.4 16328.7 -7.4 16371.8 -7.6 16414.9 -8.0 16458 -8.2 16501 -8.3 16544.1 -8.3 16587.2 -8.6 16630.3 -8.8 16673.4 -8.7 16716.5 -8.7 16759.5 -8.7 16802.6 -8.9 16845.7 -9.1 16888.8 -9.1 16931.9 -9.0 16975 -8.7 17018 -8.6 17061.1 -9.0 17104.2 -9.3 17147.3 -9.3 17190.4 -9.4 9 67 Number 27 Start Date 10/5/2022 Start Time 10:44:30 PM End Time 10:46:09 PM Duration 00:01:39 Meas Mode Single Input Range Low Input Type Mic SPL Time Weight Fast LN% Freq Weight dBA Overload No UnderRange No Sensitivity 14.82mV/Pa LZeq 57.9 LCeq 54.2 LAeq 37.5 LZFmax 69.4 LCFmax 63.2 LAFmax 59.0 LZFmin 52.2 LCFmin 49.9 LAFmin 34.0 LZE 77.9 LCE 74.2 LAE 57.5 LZpk 80.9 LCpk 80.2 LApk 80.2 LAF1% 42.4 LAF2% 39.1 LAF5% 37.9 LAF8% 37.5 LAF10% 37.3 LAF25% 36.4 LAF50% 35.7 LAF90% 34.8 LAF95% 34.7 LAF99% 34.3 1/1 Oct. (dBA) 31.5 13.2 63 25.6 125 26.9 250 25.7 500 27.0 1000 29.9 2000 31.2 4000 29.7 8000 29.6 FFT (dBA) 1 68 0 -Inf 43.1 23.3 86.2 29.6 129.3 26.9 172.3 23.4 215.4 21.9 258.5 21.5 301.6 19.4 344.7 19.8 387.8 19.2 430.8 18.2 473.9 20.3 517 19.3 560.1 19.3 603.2 20.4 646.3 19.2 689.3 19.4 732.4 19.6 775.5 19.0 818.6 19.8 861.7 20.4 904.8 20.1 947.8 19.2 990.9 19.0 1034 19.4 1077.1 19.2 1120.2 20.3 1163.3 20.2 1206.3 18.8 1249.4 18.1 1292.5 17.6 1335.6 18.3 1378.7 18.2 1421.8 16.7 1464.8 16.5 1507.9 18.0 1551 18.5 1594.1 18.4 1637.2 17.8 1680.3 17.9 1723.3 17.1 1766.4 17.2 1809.5 18.1 1852.6 17.7 1895.7 15.8 1938.8 15.5 1981.8 16.3 2024.9 18.5 2068 19.0 2111.1 17.4 2154.2 16.3 2197.3 15.7 2 69 2240.3 15.8 2283.4 17.0 2326.5 16.5 2369.6 16.9 2412.7 16.3 2455.8 15.2 2498.9 16.2 2541.9 16.8 2585 16.5 2628.1 14.5 2671.2 14.3 2714.3 16.8 2757.4 19.8 2800.4 19.6 2843.5 17.4 2886.6 15.1 2929.7 15.8 2972.8 16.7 3015.9 13.7 3058.9 13.6 3102 15.4 3145.1 16.2 3188.2 15.8 3231.3 15.7 3274.4 13.0 3317.4 13.4 3360.5 15.1 3403.6 12.9 3446.7 11.1 3489.8 12.1 3532.9 12.6 3575.9 13.2 3619 15.0 3662.1 13.8 3705.2 12.3 3748.3 14.1 3791.4 12.4 3834.4 10.5 3877.5 12.2 3920.6 14.1 3963.7 12.2 4006.8 9.8 4049.9 10.2 4092.9 10.7 4136 14.4 4179.1 13.5 4222.2 11.6 4265.3 12.7 4308.4 11.7 4351.4 10.9 4394.5 12.1 4437.6 10.3 3 70 4480.7 10.4 4523.8 10.5 4566.9 8.3 4609.9 13.1 4653 16.3 4696.1 11.3 4739.2 8.5 4782.3 11.4 4825.4 15.4 4868.5 13.7 4911.5 8.3 4954.6 14.9 4997.7 16.0 5040.8 14.4 5083.9 14.9 5127 14.7 5170 9.0 5213.1 11.7 5256.2 12.5 5299.3 13.3 5342.4 12.5 5385.5 8.5 5428.5 12.2 5471.6 9.0 5514.7 7.0 5557.8 11.7 5600.9 12.2 5644 11.3 5687 10.0 5730.1 8.1 5773.2 6.9 5816.3 4.7 5859.4 7.6 5902.5 10.5 5945.5 8.8 5988.6 4.3 6031.7 6.4 6074.8 4.0 6117.9 5.8 6161 3.7 6204 5.7 6247.1 7.8 6290.2 4.0 6333.3 11.1 6376.4 10.4 6419.5 7.3 6462.5 6.1 6505.6 5.9 6548.7 7.5 6591.8 10.5 6634.9 11.1 6678 11.7 4 71 6721 15.3 6764.1 15.9 6807.2 16.6 6850.3 18.8 6893.4 19.2 6936.5 16.2 6979.5 13.4 7022.6 13.4 7065.7 15.1 7108.8 17.4 7151.9 16.5 7195 15.7 7238.1 16.8 7281.1 16.1 7324.2 15.7 7367.3 15.7 7410.4 17.0 7453.5 18.6 7496.6 18.6 7539.6 17.0 7582.7 15.5 7625.8 13.4 7668.9 13.5 7712 14.1 7755.1 13.4 7798.1 10.9 7841.2 8.0 7884.3 8.0 7927.4 7.8 7970.5 8.6 8013.6 11.5 8056.6 10.3 8099.7 7.5 8142.8 9.4 8185.9 8.3 8229 6.7 8272.1 8.1 8315.1 8.0 8358.2 7.6 8401.3 7.9 8444.4 8.6 8487.5 10.7 8530.6 11.8 8573.6 8.9 8616.7 7.5 8659.8 9.1 8702.9 8.4 8746 7.8 8789.1 8.6 8832.1 6.8 8875.2 5.3 8918.3 5.6 5 72 8961.4 5.8 9004.5 6.2 9047.6 7.6 9090.6 11.4 9133.7 11.9 9176.8 9.8 9219.9 6.9 9263 5.7 9306.1 5.4 9349.2 6.6 9392.2 7.3 9435.3 5.9 9478.4 5.1 9521.5 5.5 9564.6 4.5 9607.7 6.4 9650.7 6.0 9693.8 5.0 9736.9 5.3 9780 5.5 9823.1 4.8 9866.2 5.0 9909.2 6.5 9952.3 6.1 9995.4 7.1 10038.5 5.8 10081.6 4.1 10124.7 4.9 10167.7 4.5 10210.8 4.5 10253.9 4.2 10297 4.8 10340.1 4.1 10383.2 4.2 10426.2 4.3 10469.3 5.7 10512.4 4.7 10555.5 4.3 10598.6 3.9 10641.7 3.6 10684.7 4.0 10727.8 5.4 10770.9 5.0 10814 5.7 10857.1 5.6 10900.2 4.5 10943.2 3.6 10986.3 3.4 11029.4 3.1 11072.5 4.0 11115.6 5.2 11158.7 4.7 6 73 11201.7 2.9 11244.8 2.6 11287.9 2.8 11331 4.7 11374.1 5.2 11417.2 2.5 11460.2 3.2 11503.3 3.6 11546.4 4.4 11589.5 3.2 11632.6 1.7 11675.7 1.1 11718.8 1.6 11761.8 2.9 11804.9 2.0 11848 0.4 11891.1 1.9 11934.2 1.3 11977.3 1.0 12020.3 0.5 12063.4 0.2 12106.5 -0.7 12149.6 0.1 12192.7 1.2 12235.8 0.9 12278.8 1.9 12321.9 2.5 12365 1.2 12408.1 0.1 12451.2 0.6 12494.3 0.3 12537.3 -1.1 12580.4 -2.1 12623.5 -2.2 12666.6 -2.0 12709.7 -2.1 12752.8 -1.3 12795.8 -0.1 12838.9 -0.2 12882 -1.0 12925.1 -1.2 12968.2 -1.2 13011.3 -1.2 13054.3 -1.6 13097.4 -1.6 13140.5 -1.3 13183.6 -0.7 13226.7 -1.2 13269.8 -0.1 13312.8 -0.6 13355.9 -1.2 13399 -1.2 7 74 Number 32 Start Date 10/6/2022 Start Time 10:39:05 AM End Time 10:42:50 AM Duration 00:03:45 Meas Mode Single Input Range Low Input Type Mic SPL Time Weight Fast LN% Freq Weight dBA Overload No UnderRange No Sensitivity 14.82mV/Pa LZeq 65.3 LCeq 64.1 LAeq 55.2 LZFmax 79.0 LCFmax 78.3 LAFmax 67.3 LZFmin 53.2 LCFmin 50.8 LAFmin 35.9 LZE 88.8 LCE 87.6 LAE 78.7 LZpk 84.5 LCpk 84.6 LApk 81.4 LAF1% 65.0 LAF2% 64.2 LAF5% 62.4 LAF8% 61.1 LAF10% 60.1 LAF25% 55.5 LAF50% 44.5 LAF90% 37.2 LAF95% 36.8 LAF99% 36.4 1/1 Oct. (dBA) 31.5 18.1 63 35.3 125 42.3 250 42.4 500 45.2 1000 51.3 2000 50.5 4000 43.5 8000 34.1 FFT (dBA) 1 75 0 -Inf 43.1 29.4 86.2 40.0 129.3 41.6 172.3 40.7 215.4 39.0 258.5 37.5 301.6 35.7 344.7 34.7 387.8 35.2 430.8 36.5 473.9 37.3 517 37.8 560.1 38.4 603.2 39.0 646.3 39.5 689.3 40.1 732.4 40.2 775.5 40.4 818.6 41.0 861.7 41.8 904.8 42.2 947.8 42.4 990.9 41.8 1034 41.3 1077.1 41.0 1120.2 40.5 1163.3 40.4 1206.3 40.2 1249.4 40.3 1292.5 40.0 1335.6 39.8 1378.7 39.4 1421.8 39.3 1464.8 39.1 1507.9 39.3 1551 39.3 1594.1 39.5 1637.2 39.4 1680.3 39.1 1723.3 39.1 1766.4 39.0 1809.5 38.8 1852.6 38.8 1895.7 38.5 1938.8 38.3 1981.8 37.9 2024.9 37.6 2068 37.5 2111.1 36.9 2154.2 36.5 2197.3 35.9 2 76 2240.3 35.5 2283.4 34.9 2326.5 34.4 2369.6 33.8 2412.7 33.5 2455.8 33.2 2498.9 32.9 2541.9 32.7 2585 32.5 2628.1 32.5 2671.2 32.4 2714.3 32.2 2757.4 32.1 2800.4 31.9 2843.5 31.7 2886.6 31.5 2929.7 31.2 2972.8 31.1 3015.9 31.1 3058.9 31.1 3102 30.9 3145.1 30.8 3188.2 30.5 3231.3 30.3 3274.4 29.9 3317.4 29.8 3360.5 29.7 3403.6 29.6 3446.7 29.4 3489.8 29.4 3532.9 29.0 3575.9 28.5 3619 28.2 3662.1 28.2 3705.2 28.0 3748.3 27.6 3791.4 27.2 3834.4 26.9 3877.5 26.6 3920.6 26.3 3963.7 26.2 4006.8 25.9 4049.9 25.7 4092.9 25.6 4136 25.1 4179.1 24.8 4222.2 24.8 4265.3 24.6 4308.4 24.1 4351.4 23.7 4394.5 23.5 4437.6 23.6 3 77 4480.7 23.8 4523.8 23.5 4566.9 23.0 4609.9 23.0 4653 23.0 4696.1 23.0 4739.2 22.6 4782.3 22.6 4825.4 22.8 4868.5 22.5 4911.5 22.4 4954.6 22.3 4997.7 22.1 5040.8 22.0 5083.9 22.0 5127 21.8 5170 21.7 5213.1 21.5 5256.2 21.4 5299.3 21.3 5342.4 21.2 5385.5 21.4 5428.5 21.7 5471.6 22.1 5514.7 22.4 5557.8 21.3 5600.9 20.4 5644 19.8 5687 19.2 5730.1 18.4 5773.2 17.9 5816.3 17.6 5859.4 17.4 5902.5 17.2 5945.5 16.9 5988.6 16.5 6031.7 16.2 6074.8 15.8 6117.9 15.5 6161 15.7 6204 15.9 6247.1 15.9 6290.2 16.1 6333.3 16.4 6376.4 16.3 6419.5 16.4 6462.5 16.7 6505.6 16.7 6548.7 16.9 6591.8 17.4 6634.9 17.4 6678 17.4 4 78 6721 17.8 6764.1 18.2 6807.2 18.4 6850.3 18.7 6893.4 19.1 6936.5 19.2 6979.5 18.8 7022.6 18.9 7065.7 18.7 7108.8 18.6 7151.9 18.3 7195 18.0 7238.1 17.7 7281.1 17.5 7324.2 17.1 7367.3 16.8 7410.4 16.4 7453.5 16.2 7496.6 15.9 7539.6 15.6 7582.7 15.4 7625.8 15.1 7668.9 15.1 7712 15.1 7755.1 14.8 7798.1 14.4 7841.2 14.4 7884.3 14.4 7927.4 14.5 7970.5 14.2 8013.6 14.0 8056.6 13.8 8099.7 13.7 8142.8 13.7 8185.9 13.7 8229 13.7 8272.1 13.2 8315.1 13.0 8358.2 13.0 8401.3 12.6 8444.4 12.6 8487.5 12.5 8530.6 12.4 8573.6 12.2 8616.7 12.0 8659.8 11.9 8702.9 11.9 8746 11.9 8789.1 11.8 8832.1 11.9 8875.2 11.7 8918.3 11.8 5 79 8961.4 11.8 9004.5 11.5 9047.6 11.3 9090.6 11.3 9133.7 11.4 9176.8 11.3 9219.9 11.1 9263 11.0 9306.1 11.1 9349.2 11.3 9392.2 10.9 9435.3 11.0 9478.4 11.2 9521.5 10.9 9564.6 10.8 9607.7 10.8 9650.7 10.7 9693.8 10.8 9736.9 10.8 9780 10.7 9823.1 10.4 9866.2 10.4 9909.2 10.0 9952.3 9.8 9995.4 9.7 10038.5 9.5 10081.6 9.3 10124.7 9.5 10167.7 9.2 10210.8 9.1 10253.9 9.2 10297 9.1 10340.1 9.1 10383.2 9.1 10426.2 9.1 10469.3 9.0 10512.4 9.0 10555.5 8.8 10598.6 8.6 10641.7 8.8 10684.7 8.9 10727.8 8.6 10770.9 8.3 10814 8.4 10857.1 8.3 10900.2 8.2 10943.2 8.2 10986.3 8.1 11029.4 7.8 11072.5 7.6 11115.6 7.4 11158.7 7.4 6 80 11201.7 7.3 11244.8 7.0 11287.9 6.8 11331 6.7 11374.1 6.4 11417.2 6.1 11460.2 5.8 11503.3 5.7 11546.4 5.5 11589.5 5.2 11632.6 5.3 11675.7 4.9 11718.8 4.5 11761.8 4.2 11804.9 4.1 11848 3.8 11891.1 3.6 11934.2 3.3 11977.3 3.2 12020.3 2.9 12063.4 2.9 12106.5 2.5 12149.6 2.3 12192.7 2.3 12235.8 2.1 12278.8 1.8 12321.9 1.6 12365 1.5 12408.1 1.4 12451.2 1.2 12494.3 1.2 12537.3 1.1 12580.4 0.9 12623.5 0.9 12666.6 0.7 12709.7 0.5 12752.8 0.5 12795.8 0.6 12838.9 0.5 12882 0.3 12925.1 0.4 12968.2 0.4 13011.3 0.4 13054.3 0.4 13097.4 0.4 13140.5 0.4 13183.6 0.6 13226.7 0.7 13269.8 0.8 13312.8 0.7 13355.9 0.7 13399 0.9 7 81 13442.1 0.8 13485.2 0.9 13528.3 0.9 13571.3 0.8 13614.4 0.9 13657.5 0.9 13700.6 0.8 13743.7 0.8 13786.8 0.7 13829.8 0.7 13872.9 0.5 13916 0.4 13959.1 0.4 14002.2 0.1 14045.3 0.1 14088.4 0.1 14131.4 0.0 14174.5 0.0 14217.6 0.4 14260.7 0.3 14303.8 -0.5 14346.9 -0.8 14389.9 -0.9 14433 -1.3 14476.1 -1.6 14519.2 -1.6 14562.3 -1.8 14605.4 -1.9 14648.4 -2.3 14691.5 -2.5 14734.6 -2.8 14777.7 -2.9 14820.8 -3.0 14863.9 -3.4 14906.9 -3.6 14950 -3.8 14993.1 -4.1 15036.2 -4.2 15079.3 -4.5 15122.4 -4.6 15165.4 -4.9 15208.5 -5.1 15251.6 -5.4 15294.7 -5.7 15337.8 -5.9 15380.9 -6.0 15423.9 -6.2 15467 -6.3 15510.1 -6.3 15553.2 -6.4 15596.3 -7.0 15639.4 -7.3 8 82 15682.4 -7.4 15725.5 -7.9 15768.6 -8.2 15811.7 -8.2 15854.8 -8.6 15897.9 -8.7 15940.9 -8.8 15984 -8.9 16027.1 -9.2 16070.2 -9.3 16113.3 -9.5 16156.4 -9.6 16199.4 -9.8 16242.5 -10.2 16285.6 -10.6 16328.7 -10.7 16371.8 -10.8 16414.9 -11.0 16458 -11.3 16501 -11.5 16544.1 -11.5 16587.2 -11.7 16630.3 -11.8 16673.4 -12.0 16716.5 -12.0 16759.5 -12.1 16802.6 -12.1 16845.7 -12.2 16888.8 -12.3 16931.9 -12.3 16975 -12.3 17018 -12.4 17061.1 -12.6 17104.2 -12.5 17147.3 -12.6 17190.4 -12.6 9 83 13442.1 -1.1 13485.2 -0.6 13528.3 -1.0 13571.3 -1.1 13614.4 -0.8 13657.5 -0.9 13700.6 -1.2 13743.7 -1.0 13786.8 -1.0 13829.8 -1.3 13872.9 -1.1 13916 -0.8 13959.1 -0.8 14002.2 -0.5 14045.3 -0.0 14088.4 -0.6 14131.4 -1.4 14174.5 -0.6 14217.6 -0.6 14260.7 -1.7 14303.8 -2.3 14346.9 -1.6 14389.9 -2.1 14433 -2.9 14476.1 -2.7 14519.2 -1.6 14562.3 -2.1 14605.4 -3.1 14648.4 -2.1 14691.5 -3.1 14734.6 -4.1 14777.7 -3.3 14820.8 -3.5 14863.9 -4.4 14906.9 -4.4 14950 -4.3 14993.1 -4.0 15036.2 -5.1 15079.3 -5.2 15122.4 -5.2 15165.4 -6.1 15208.5 -5.3 15251.6 -5.3 15294.7 -5.9 15337.8 -6.3 15380.9 -6.6 15423.9 -6.9 15467 -7.1 15510.1 -7.3 15553.2 -7.3 15596.3 -7.6 15639.4 -7.6 8 84 15682.4 -8.1 15725.5 -8.4 15768.6 -8.6 15811.7 -9.1 15854.8 -9.2 15897.9 -9.3 15940.9 -9.0 15984 -9.1 16027.1 -9.3 16070.2 -9.3 16113.3 -9.6 16156.4 -10.3 16199.4 -10.2 16242.5 -10.3 16285.6 -10.3 16328.7 -9.8 16371.8 -10.1 16414.9 -11.0 16458 -11.3 16501 -11.2 16544.1 -11.0 16587.2 -11.5 16630.3 -11.8 16673.4 -10.7 16716.5 -11.0 16759.5 -12.2 16802.6 -11.6 16845.7 -10.7 16888.8 -11.9 16931.9 -11.7 16975 -11.1 17018 -11.7 17061.1 -11.8 17104.2 -11.4 17147.3 -11.8 17190.4 -12.1 9 85 Attachment No. ZA 4 Project Plans 86 87 88 89 Fax: 951-280-9746Phone: 951-280-9960 www.calvada.comToll Free: 800-CALVADATREATMENTSYSTEM SITE90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 PBSPBSPBS109 110 111 112 113 114 115 116 117 From: Amy Santella <amycsantella@gmail.com> Sent: January 25, 2023 10:46 AM To: CDD <CDD@newportbeachca.gov> Cc: Tran, Jenny <jtran@newportbeachca.gov> Subject: Notice of Public Hearing Comments for review 1/26/23: 94 Hartford Drive Project File No.: PA2022‐0180 Good morning, My name is Amy Santella and I live at 94 Hartford Drive. Please see below for review prior to the public hearing on 1/26/23 for Project File No.: PA2022‐0180. Please confirm receipt of this email. Thank you very much. Respectfully, Amy Santella Regarding the City of Newport Beach: Notice of Public Hearing ‐‐ Aeronutronic Ford Soil Vapor Remediation at 94 Hartford Drive on Thursday, January 26, 2023: Project File No.: PA2022‐0180 Location: 94 Harford Drive To Whom It May Concern: We live at 94 Hartford Drive with our infant son. We have the following concerns regarding the soil vapor remediation treatment system that is proposed to be built directly next to our residence, violating the required separation of 8 feet between buildings. As the primary residence impacted, we did not approve this system location and are requesting an alternate location due to the health and safety concerns listed below. We never received any certified mail regarding the project being directly adjacent to our home. We understand the necessity of the remediation, however 94 Hartford was not the first proposed site. There are multiple sites available in the community that do not violate the building separation requirement. 1.The system is proposed to be 3 feet away from our home, including the exhaust that will be adjacent to windows. The project summary states that the required building separation is 8 feet. a.Data must be provided to show the proposed system, violating the required separation distance: i. is deemed safe to be within 3 feet of a residential unit for the proposed length of time ii. the proximity does not adversely affect human health and child development iii.Please include information on the electromagnetic field and/or radiation from the unit and air quality standards from the exhaust Zoning Administrator - January 26, 2023 Item No. 2a Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) b.What are the impacts on fire safety code and potential impacts of an earthquake or other natural disaster since the required separation distance is 8 feet? 2.It was stated at the pre‐construction meeting that there are no “real time” results of the air samples taken from the exhaust. These samples must be analyzed at the lab. The system is proposed to be 3 feet away from a residence where an infant resides (the required separation is 8 feet). a.How can we be assured that the air quality is safe with an infant inside 24 hours a day? b.If there is a failure in the system, how long can the failure go undetected and what are the consequences? c.Will the residences directly impacted receive air purifiers, new windows, and enhanced monitoring? i.Currently, our home has the original windows, installed 35+ years ago; these windows have the glass separated from the metal frame and do not properly seal out wind, dust, or noise. Having the treatment system 3 feet away from the home with this condition of windows will greatly impact quality of life inside the home, including sleep disruptions due to noise impact. 3.The original proposal included 5‐6 extraction units; please provide information on the safety of using 1 larger unit that is 3 feet away from a residence, where the required separation is 8 feet. It was stated that the efficacy of using 1 larger unit was determined by computer modeling. a.Please provide data on potential failures among these treatment systems and the impact of residential safety (for example, pipes, electrical failures, fire risk). 4.The system unit will affect home values and quality of life. We did not buy our home with plans to have a treatment system directly outside of our main living area window. We will not be able to sell or rent out our home with this treatment system 3 feet away. As stated in the Zoning Administrator Staff Report: “the treatment system will be located adjacent to the residence at 94 Hartford Drive as it has been identified as the most feasible location to reduce visual impact from surrounding residents.” a.This location does not reduce visual impact from our residence. This location directly impacts our quality of life and home. Per the renderings, a large pine tree will be removed that is currently in front of our living area window and the system will be directly visible from our main living area window. We have not received notification of this tree being removed. b.Our home was never entered to see the visual impact the system will have from our main living area and the sightlines from 94 Hartford Drive. c.The project summary also states our air conditioning unit “shall be relocated” prior to issuance of the building permits. We did not agree to this relocation of the air conditioning unit. We did not receive notification via certified mail of moving this air conditioning unit. d.The main concerns at the pre‐construction meeting were related to construction inconveniences, parking, and aesthetics, instead of health and safety of residents with the system being adjacent to a home that violates the required separation distance. Zoning Administrator - January 26, 2023 Item No. 2a Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) We respectfully request the system to be moved to an alternate location that does not violate the required building separation distance. There are multiple sites in the community that do not violate this. Respectfully, Amy Santella and Kevin Solomita Zoning Administrator - January 26, 2023 Item No. 2a Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) From: Leslie Pratt <lmbpratt4@yahoo.com> Sent: January 24, 2023 6:53 PM To: CDD <CDD@newportbeachca.gov> Cc: Tran, Jenny <jtran@newportbeachca.gov> Subject: Objections for hearing RE: City of Newport Beach Notice of Public Hearing Aeronutronic Ford Soil Vapor Remediation at 94 Hartford Drive Project File No: PA2022‐0180 1.The proposed SVE system is in very close proximity to my windows. I do not have air conditioning and thus have always needed to have my windows open during the summer and fall months for ventillation. The noise levels during construction and the running of the system will cause a very disquieting and stressful atmosphere. It is jeopardizing mine and my immediate neighbors quality of life. 2.I am a two time survivor of cancer. I am greatly concerned regarding the exhaust fumes and safety of the SVE system. Since there are not going to be real time results as to air quality how can those directly affected be guaranteed all is operating safely. What if their is some type of natural disaster. Fires, earthquakes etc. could mean disastrous damage to the system, causing grave consequences. 3.This project is going to adversely effect all the communities property values. How can you justify only four properties taking the brunt of this and probably being unable to sell or rent during this project. There is no guarantee as to when someone might have to sell nor to to the timing of this project. 4.Why were the residents not consulted or included in the discussion as to where this system belongs. The original plans were scratched due to concern over visitor parking, Instead, they have decided to place the system 3 feet away from a residents window with and infant and within feet of two other residences. 5.The original unit included 5+ systems. Please provide information on the efficiency and safety of using 1 large system 3 feet away from residences. 6.What will Ford do for the 4‐6 residences DIRECTLY affected by this SVE system. Zoning Administrator - January 26, 2023 Item No. 2a Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) From: Leslie Pratt <lmbpratt4@yahoo.com> Sent: January 25, 2023 6:15 AM To: CDD <CDD@newportbeachca.gov> Cc: Tran, Jenny <jtran@newportbeachca.gov> Subject: Objections for hearing RE: 94 Hartford Ford Aeronutronic Soil Vapor Remediation Project File No: PA2022‐0180 After my initial submission I reread the City of Newport Beach Notice of Public Hearing. THe notice states that the proposed project requests a 3.2 foot separation distance where the REQUIRED separation is 8 feet between buildings. Please explain and add this concern to my previous submission. Zoning Administrator - January 26, 2023 Item No. 2a Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) From:Lee Healy <leechealy@gmail.com> Sent:January 25, 2023 10:12 AM To:CDD Zoom Cc:Tran, Jenny Subject:Time Sensitive: Public Hearing 1/26 Issues on Aeronutronic Ford Soil Vapor Remediation Good morning. My name is Lee Healy and I am a resident and original owner at 92 Hartford Dr. Newport Beach in Bayridge. Below please find issues that I am raising with regard to the Aeronutronic Ford Soil Vapor Remediation project at Bayridge (94 Hartford) in Newport Beach. Project file No: PA2022-0180 Thank you for your review of these points prior to the public hearing on January 26. Lee Healy I respectfully and strenuously object to the Bayridge/Ford treatment system building being placed at 94 Hartford Drive. IT IS TOO CLOSE TO HOMES AND NEEDS TO BE RELOCATED. The original plan of Wood/WSP was NOT to have 13 well installations with concentrated vapors converging into one building for treatment. They proposed 5 buildings closer to the hot spots, where the vapor would be diffused in different areas of the Bayridge complex. Objections were raised to the original plan because of the taking up of parking spaces. Let’s not make parking convenience a priority over health and safety. The proposed distance from the building and 94 Hartford is 3.2 feet, where 8 feet is the required separation. What if there is a fire inside the structure? An earthquake? Removal of toxins cannot be at 100%. All the toxic vapor being expelled within feet of our residences IS NOT ACCEPTABLE to our health and well‐being. The problem is exacerbated by the prevailing onshore breezes that will move the vapor to the closest homes on Hartford Drive. The new model with one treatment system building was conceived through computer‐generated 3D modeling that we must trust. We are being asked to put our faith in technology, with no real time monitoring. It was explained in the meeting that samples have to be taken off‐site and analyzed, and there is a minimum of a two‐ week lag. Pipes can leak. Connectors can leak. There can be failures with the system, and this is occurring a few feet from where we live, sleep and breathe. Living in close proximity to this ongoing process is psychologically disturbing and deprives us of peace of mind. Zoning Administrator - January 26, 2023 Item No. 2a Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) The noise factor so close to homes is another reason to relocate the building. Possible electrical humming from the equipment. Possible EMF fields. The project is supposed to last a year. What if the testing at that point does not show results that are satisfactory to the Regional Water Quality Control Board? The timeframe could be extended. What if we want to sell our homes or rent them out over the next 18+ months? Who would buy or rent with this situation? Our homes are NUMBER ONE FINANCIAL ASSET. A relocation of the treatment system building is imperative. Either go back to the original plan of 5 structures or find a better location, such as the corner of Bison & Country Club Drive, which is closer to garages, not homes, or the 7 parking spaces that border Jamboree that were fenced in and used as a construction yard for a past project. This is not acceptable and we expect it to be changed. Thank you. LEE HEALY 92 Hartford Dr. Newport Beach CA 02660 949.760.3054 LeeCHealy@gmail.com Zoning Administrator - January 26, 2023 Item No. 2a Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) From: HamannNazaroff, Daniela <d.hamannnazaroff@woodplc.com> Sent: January 25, 2023 5:06 PM To: Tran, Jenny <jtran@newportbeachca.gov>; Nova, Makana <MNova@newportbeachca.gov> Cc: Jantzen‐Marson, Candace <c.jantzen‐marson@woodplc.com>; Miller, Emily <emily.miller@woodplc.com>; Tracy Craig <tracy@craig‐communications.com> Subject: RE: January 26 ‐ Zoning Administrator Staff Report and Agenda – PA2022‐0180 Dear Jenny and Makana, I am writing to request a continuance for the public hearing originally scheduled for January 26, 2023 to March 2nd, 2023 in order to comprehensively respond to the written comments received today January 25, 2023. I’ve attached our v‐ cards if you need to reach out to any of us. As we mentioned on the call, we will also be having an introductory meeting with Councilmember Robyn Grant on February 15 in order to introduce her to the project and answer any questions. Best, Daniela Daniela Hamann-Nazaroff, PE M+ 1 510-206-6571 Zoning Administrator - January 26, 2023 Item No. 2b Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) From: Tran, Jenny <jtran@newportbeachca.gov> Sent: Wednesday, January 25, 2023 12:01 PM To: Miller, Emily <emily.miller@woodplc.com> Cc: HamannNazaroff, Daniela <d.hamannnazaroff@woodplc.com>; Jantzen‐Marson, Candace <c.jantzen‐ marson@woodplc.com>; Cox, Hope <andi.cox@woodplc.com> Subject: RE: January 26 ‐ Zoning Administrator Staff Report and Agenda – PA2022‐0180 CAUTION: External email. Please do not click on links/attachments unless you know the content is genuine and safe. Hi Emily, Thank you for the update. I have received a few correspondences from the public, specifically the homeowners that are most impacted by the project. I have compiled and attached them. Do you have time today at 3 p.m. for a phone call with me and Makana? Thank you, Jenny Tran Assistant Planner Community Development Department Office: 949-644-3212 100 Civic Center Drive Newport Beach, CA 92660 From: Miller, Emily <emily.miller@woodplc.com> Sent: January 25, 2023 11:57 AM To: Tran, Jenny <jtran@newportbeachca.gov> Cc: HamannNazaroff, Daniela <d.hamannnazaroff@woodplc.com>; Jantzen‐Marson, Candace <c.jantzen‐ marson@woodplc.com>; Cox, Hope <andi.cox@woodplc.com> Subject: RE: January 26 ‐ Zoning Administrator Staff Report and Agenda – PA2022‐0180 [EXTERNAL EMAIL] DO NOT CLICK links or attachments unless you recognize the sender and know the content is safe. Hi Jenny, We are preparing three slides to show during the hearing, and will have them ready to send to you by 12:30pm today. The slides will include 1) the SVE well and piping network in Bayridge Park, 2) a rendering of the treatment system building, 3) a figure showing the overall electrical design with connection to both the Bayridge Park’s system and the Belcourt Terrace system. As discussed over the phone, the approvals for the electrical connection to the SoCal Edison distribution vault in the Belcourt Master neighborhood, and the SVE system that it will share a trench with in the Belcourt Terrace neighborhood are still being negotiated with the respective Homeowners Associations. Thus, additional permit application(s) will be submitted once we have the required signatures. For the time being, we plan to construct the Bayridge Park system so that it is ready to operate as soon as the electrical connection is made. Additionally, the following people from WSP will also be joining the public hearing event: Daniela Hamann‐Nazaroff – daniela.hamannnazaroff@wsp.com, 510‐206‐6571 Zoning Administrator - January 26, 2023 Item No. 2b Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) Candace Jantzen‐Marson – candace.janzten‐marson@wsp.com, 510‐332‐4183 I understand if it is too late to add them to the panel, but they will be helping answer questions because they have had the most direct communications with these communities previously. Thank you, Emily Miller, PE she/her/hers M+ 1 510-631-7822 Zoning Administrator - January 26, 2023 Item No. 2b Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) From: Miller, Emily <emily.miller@woodplc.com> Sent: January 25, 2023 12:42 PM To: Tran, Jenny <jtran@newportbeachca.gov> Cc: HamannNazaroff, Daniela <d.hamannnazaroff@woodplc.com>; Jantzen‐Marson, Candace <c.jantzen‐ marson@woodplc.com>; Cox, Hope <andi.cox@woodplc.com> Subject: RE: January 26 ‐ Zoning Administrator Staff Report and Agenda – PA2022‐0180 Jenny, Please see attached slides that we would like to present at the hearing tomorrow. Thank you, Emily Miller, PE she/her/hers M+ 1 510-631-7822 From: Miller, Emily Sent: Wednesday, January 25, 2023 12:10 PM To: Tran, Jenny <jtran@newportbeachca.gov> Cc: HamannNazaroff, Daniela <d.hamannnazaroff@woodplc.com>; Jantzen‐Marson, Candace <c.jantzen‐ marson@woodplc.com>; Cox, Hope <andi.cox@woodplc.com> Subject: RE: January 26 ‐ Zoning Administrator Staff Report and Agenda – PA2022‐0180 Zoning Administrator - January 26, 2023 Item No. 2b Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) Hi Jenny, Thanks for sending those correspondence. Daniela and I are available for a call at 3pm today; I can set up a call on Teams. FYI, I corrected the email addresses below. Emily Miller, PE she/her/hers M+ 1 510-631-7822 From: Tran, Jenny <jtran@newportbeachca.gov> Sent: Wednesday, January 25, 2023 12:01 PM To: Miller, Emily <emily.miller@woodplc.com> Cc: HamannNazaroff, Daniela <d.hamannnazaroff@woodplc.com>; Jantzen‐Marson, Candace <c.jantzen‐ marson@woodplc.com>; Cox, Hope <andi.cox@woodplc.com> Subject: RE: January 26 ‐ Zoning Administrator Staff Report and Agenda – PA2022‐0180 CAUTION: External email. Please do not click on links/attachments unless you know the content is genuine and safe. Hi Emily, Thank you for the update. I have received a few correspondences from the public, specifically the homeowners that are most impacted by the project. I have compiled and attached them. Do you have time today at 3 p.m. for a phone call with me and Makana? Thank you, Jenny Tran Assistant Planner Community Development Department Office: 949-644-3212 100 Civic Center Drive Newport Beach, CA 92660 From: Miller, Emily <emily.miller@woodplc.com> Sent: January 25, 2023 11:57 AM To: Tran, Jenny <jtran@newportbeachca.gov> Cc: HamannNazaroff, Daniela <d.hamannnazaroff@woodplc.com>; Jantzen‐Marson, Candace <c.jantzen‐ marson@woodplc.com>; Cox, Hope <andi.cox@woodplc.com> Subject: RE: January 26 ‐ Zoning Administrator Staff Report and Agenda – PA2022‐0180 [EXTERNAL EMAIL] DO NOT CLICK links or attachments unless you recognize the sender and know the content is safe. Zoning Administrator - January 26, 2023 Item No. 2b Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) Hi Jenny, We are preparing three slides to show during the hearing, and will have them ready to send to you by 12:30pm today. The slides will include 1) the SVE well and piping network in Bayridge Park, 2) a rendering of the treatment system building, 3) a figure showing the overall electrical design with connection to both the Bayridge Park’s system and the Belcourt Terrace system. As discussed over the phone, the approvals for the electrical connection to the SoCal Edison distribution vault in the Belcourt Master neighborhood, and the SVE system that it will share a trench with in the Belcourt Terrace neighborhood are still being negotiated with the respective Homeowners Associations. Thus, additional permit application(s) will be submitted once we have the required signatures. For the time being, we plan to construct the Bayridge Park system so that it is ready to operate as soon as the electrical connection is made. Additionally, the following people from WSP will also be joining the public hearing event: Daniela Hamann‐Nazaroff – daniela.hamannnazaroff@wsp.com, 510‐206‐6571 Candace Jantzen‐Marson – candace.janzten‐marson@wsp.com, 510‐332‐4183 I understand if it is too late to add them to the panel, but they will be helping answer questions because they have had the most direct communications with these communities previously. Thank you, Emily Miller, PE she/her/hers M+ 1 510-631-7822 Zoning Administrator - January 26, 2023 Item No. 2b Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) SVE Well and Piping Network•13 wells in road•~2,400 linear feet ofpipingZoning Administrator - January 26, 2023 Item No. 2b Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) Treatment System BuildingTreatment System Location - CurrentFuture Treatment System - Rendering Zoning Administrator - January 26, 2023 Item No. 2b Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180) Zoning Administrator - January 26, 2023 Item No. 2b Additional Materials Received Aeronutronic Ford Soil Vapor Remediation Limited Term Permit (PA2022-0180)