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Home My WebLink AboutPIP 90-02; McCormick Family Trust; Planned Industrial Permit (PIP) (25)ANALYSIS REPORT MCCORMICK FAMILY TRUST LOT 37 CARLSBAD AIRPORT CENTRE- APN NO. 2 12-092-0 1 Prepared For SMITH CONSULTING ARCHITECTS 9868 SCRANTON ROAD SAN DIEGO CA 92121 ATI'ENTION: MARK LANGAN (610452-3188 Prepared By D U KES ~cautid testing and Endmrina 7940 Silverton Avenue Suite 201 San Diego, CA 92126 (619) 549-21 19 1 800 44 NOISE (446-6473) . . . c c . . . . c . . . MCCORMICK FAMILY TRUST November 2 1. 1990 File: ON12.DOC DUKES Acou(ld tdne ud Endnufine TABLE OF CONTENTS ATTACHMENTS 11 1.0 SUMMARY OF FINDINGS .................................................................................. 1 1.1 PURPOSE ............................................................................................. 1 1.2 OBSERVATIONS .................................................................................... 1 1.2.1 Exterior Noise ........................................................................... 1 1.2.2 Interior Noise ............................................................................ 1 1.3 CONCLUSIONS ...................................................................................... 1 1.3.1 Exterior Noise ........................................................................... 1 1.3.2 Interior Noise ............................................................................ 1 2.0 INTRODUCTION .............................................................................................. 2 2.1 PROJECT DESCRIPTION ......................................................................... 2 2.2 SITE DESCRIPTION ................................................................................ 2 2.3 REPORT REQUIREMENTS ....................................................................... 2 3 . 0 ENVIRONMENTAL SE'ITING .............................................................................. 3 3.1 EXISTING NOISE ................................................................................... 3 3.2 FUTURE NOISE ..................................................................................... 3 3.2.1 Carlsbad , McClellan-Palomar Airport .............................................. 3 3.2.2 Kellogg Avenue ......................................................................... 3 4.0 METHODOLOGY .............................................................................................. 4 4.1 EXTERIOR NOISE .................................................................................. 4 4.2 INTERIOR NOISE ................................................................................... 4 5.0 IMPACT .......................................................................................................... 5 5.1 EXTERIORNOISE .................................................................................. 5 5.2 INTERIOR NOISE ................................................................................... 5 6.0 MITIGATION ................................................................................................... 6 6.1 EXTERIOR NOISE .................................................................................. 6 6.2 INTERIOR NOISE ................................................................................... 6 7.0 CERTIFICATION .............................................................................................. 7 8.0REFERENCES .................................................................................................. 8 8.1 NOTES ................................................................................................. 8 8.2 BIBLIOGRAPHY .................................................................................... 9 .. .................................................................................................... 9.0 GLOSSARY ...................................................................................................... 10 . . . c c 1 MCCORMICK FAMILY TRUST November 21, 1990 File: ON12.DOC ATTACHMENTS (Segregated by tabbed report dividers) EXHIBITS A Vicinity Map B SANDAG Carlsbad, Mc Clellan-Palomar Airport CNEL Contour Map C Carlsbad, Mc Clellan-Palomar Airport Approach map (PILOT GUIDES TO CALIFORNIA AIRPORTS) showing traffic patterns in relationship to the project. INTERIOR NOISE Summary Table This table(s) summarizes the calculated interior Noise levels for each office analyzed. Assembly Transmission Loss Tables - The dimensions of building construction assemblies listed with acoustical Transmission Loss (TL) values. Detailed Calculations - The noise reduction is calculated separately for each office. SOURCE TO RECEIVER CROSS-SECTIONS Topography cross-sections for each exterior noise calculation showing perspective of project elements, such as building property lines, etc. in relation to the airport. ii c c c MCCORMICK FAMILY TRUST November 2 1. 1990 File: ON12.DOC 1 .O SUMMARY OF FINDINGS 1 .I PURPOSE This analysis addresses the existing and future noise impact from aircraft noise and the acoustical mitigation required at the proposed project. This report may be submitted as evidence of compliance with existing and applicable provisions of the City of Carlsbad Noise Element to the General Plan. 1 1.2 OBSERVATIONS The project, McCormick Family Trust , Carlsbad Centre-lot 37 is located approximately 380 feet North of Kellogg Avenue and Camino Via Roble 1.2.1 Exterior Noise The exterior CNEL (Community Noise Equivalent Level) caused by Carlsbad, Mc Clellan-Palomar Airport , is approximately 70 decibels.* 1.2.2 Interior Noise The CNEL inside offices will not exceed 50 decibels, the maximum permissible limit . 1.3 CONCLUSIONS 1.3.1 Exterior Noise Exterior mitigation is not required. 1.3.2 Interior Noise Mechanical ventilation and 1/4 inch thick fixed window glazing is required and planned in all offices. 1 MCCORMICK FAMILY TRUST November 21, 1990 File: ON12.DOC 2.0 INTRODUCTION 2.1 PROJECT DESCRIPTION The project is located on 1958 Kellogg Avenue Carlsbad, California. It will consist of a 2-story building. Warehouse storage is provided on the first floor. Nine offices covering 6,936 square feet are located on the mezzanine level. 2.2 SITE DESCRIPTION The project is located approximately 380 feet North of the intersection of Kellogg Avenue and Camino Vida Roble road. The 2.444 acre site is adjacent and 6 ft. above Kellogg Avenue. It is also approximately 10 feet below Palomar Airport runway grade as shown by the Source to Receiver Cross-Sections attached. Please refer also to the Thomas Guide page 19, coordinates E-2; the vicinity map, Exhibit A . 2.3 REPORT REQUIREMENTS This report is required to complete Plan Industrial Permit N0.90-02 and to satisfy the requirements of the City of Carlsbad Noise Element to the General Plan. 2 c c c I ! MCCORMICK FAMILY TRUST \ November 2 1, 1990 File: ON12.DOC 3.0 ENVIRONMENTAL SETTING 3.1 EXISTING NOISE Carlsbad, Mc Clellan-Palomar Airport, a local General Aviation facility with a tower and one runway (6/24; 4700 by 150 feet paved and lighted). The Aircraft pattern altitude is 872 feet AGL (Above Ground Level) as shown on Exhibit C, the Approach Map. The project is located southwest of the fringe of the approach and touch-and-go pattern. For noise abatement purposes, all turbojet and large piston aircraft departing runway 24 are advised to climb straight-out until past the shoreline prior to making departure turns..Z Small helicopters also operate from the facility. Aircraft noise (70 dB CNEL) is frequently audible on site. 3 Kellogg Avenue, is lightly traveled and is not a significant noise source on the project. This street serves only businesses located on Kellogg Avenue. 3.2 FUTURE NOISE 3.2.1 Carlsbad , McClellan-Palomar Airport Carlsbad, Mc Clellan-Palomar Airport daily operations are not expected to increase significantly. 3.2.2 Kellogg Avenue Kellogg Avenue ADT (Average Daily Trip) is not expected to significantly change since this source only serves buisnesses located on Kellogg Avenue. 3 MCCORMICK FAMILY TRUST November 21, 1990 File: ON12.DOC L i DUKES Acowtlwl tasting and ondimdngL 4.0 METHODOLOGY 4.1 EXTERIOR NOISE The Exterior CNEL was obtained from Comprehensive Land Use Plan McClellan- Palomar Airport Carlsbad, California obtained from SANDAG (San Diego Association of Governments) Figure 2(Airport Influence Area Projected Noise Contours, Clear Zones and Flight Activity Zone) page 6. 4.2 INTERIOR NOISE Exterior CNEL values are converted to the Octave Band Pressure Levels (SPL). The Transmission Loss data for all assemblies to be used in the exterior wall- windows, doors, air conditioning unit fenestrations, etc.+e subtracted from the corresponding exterior octave band level to determine the resulting Spectrum inside the office for six octave bandwidths, for each element in the exterior wall. The composite noise transmission for each element is adjusted for room absorption to determine the noise reduction for each window, door, etc. The overall noise reduction is then calculated for all elements combined. When the interior levels exceed 50 decibels, CNEL, the noise reduction achieved by each wall element is reviewed to determine which changes will achieve the most cost effective compliance. Usually windows are first to be reviewed, then doors and then walls.Each step in the above noise reduction calculation series is shown for each office in the attached tables; assembly transmission loss data are shown on page two of this table; page 1 summarizes interior CNEL . 4 MCCORMICK FAMILY TRUST November 2 1, 1990 File: ON12.DOC 5.0 IMPACT 5.1 EXTERIOR NOISE The exterior CNEL (Community Noise Equivalent Level) caused by Carlsbad, Mc Clellan-Palomar Airport , is approximately 70 decibels. 5.2 INTERIOR NOISE The CNEL inside offices will not exceed 50 decibels, the maximum permissible limit . 5 ." MCCORMICK FAMILY TRUST November 21, 1990 File: ON12.DOC 6.0 MITIGATION 6.1 EXTERIOR NOISE Exterior mitigation is not required. c 6.2 INTERIOR NOISE Mechanical ventilation and 1/4 inch thick fixed window glazing is required and planned in all offices. 6 MCCORMICK FAMILY TRUST November 21, 1990 File: ON12.DOC DUKES Aoounial teadng and ongi~~nringL 7 .O CERTIFICATION The findings and recommendations of this acoustical report are a true and factual analysis of the potential environmental efects associated with the proposed development. SAID NAJAFI n PROJECT ENGINEE WILLIAM D. WEAVER PROJECT MANAGER PROJECT STAFF Vicky Manriquez Administrative Assistant Darrell Reich Programmer 7 MCCORMICK FAMILY TRUST November 21, 1990 File: ON12.DOC DUKES Aeorptid tomling mnd engimringL 8.0 REFERENCES 8.1 NOTES 1. Current City of Carlsbad Noise Element to the General Plan . 2. Unless otherwise stated information concerning aircraft patterns, operations and physical characteristics of Carlsbad, Mc Clellan-Palomar Airport was taken from Pilots Guide to California Airports, "Los Angeles, Carlsbad, Mc Clellan- Palomar." 12-16. 3. Unless otherwise stated, CNEL information was taken from the Comprehensive Land Use Plan, McClellan-Palomar Airport Carlsbad, California, CNEL Contour Map. figure 2, page 6. 4. Unless otherwise stated Information was provided during a telephone conversation with Mike Shirey, Associate Traffic Engineer, Traffic Engineering, City of Carlsbad, (619) 438-1161 on 11-19-90 at 11:30 AM. MCCORMICK FAMILY TRUST November 21, 1990 File: ON12.DOC 8.2 BIBLIOGRAPHY Acoustical Society of America, Vern 0. Knudsen and Cyril M. Harris. Acoustical Designing in Architecture. New York: American Institute of Physics. 1978. 55-62. American Society of Testing and Materials. Book of ASTM Standards for Thermal Insulation; Environmental Acoustics Vol 04.06, Philadelphia: 1987. Section New York: American Society of Testing and Materials, 1987. E90-85, E96-80, E336-84, E398-83, 13-73, E597-81, E989-84, & E1014-84. Heeden, Robert A., "Compendium of Materials for Noise Control, "U.S. Department of Health, Education and Welfare, National Institute for Occupational Safety and Health, November, 1978. Maresh, Dana B., ed. Pilots Guide to California Airports. Optima Publications. Los Altos, California: 1990. Monsanto Company. Acoustical Design Guide - Glazing IzData. Monsanto Company, Resins Division, Department 204,800 North Lindbergh Boulevard, Saint Louis, MO 63167. NBS Building Sciences Series 77, "Acoustical and Thermal performance on Exterior Residential Walls, I' U.S. Department of Commerce, National Bureau of Standards, November, 1976. Uniform Building Code, 1989 edition, Section 1205 (a), "Light and Ventilation," 86. 9 MCCORMICK FAMILY TRUST November 21,1990 File: ON12.DOC 9.0 GLOSSARY Ambient Noise. Ambient noise is the all-encompassing noise associated with a given environment, being usually a composite of sounds from many sources near and far. Band Pressure Level. The band pressure level of a sound for a specified frequency band is the effective sound pressure level for the sound energy contained within the band. The width of the band and the reference pressure must be specified. The width of the band may be indicated by the use of a qualifying adjective: e.g., octave-band (sound pressure) level, half-octave band level, third-octave band level, 50-cps band level. If the sound pressure level is caused by thermal noise, the standard deviation of the band pressure level will not exceed 1 dB if the product of the bandwidth in cycles per second by the integration time in seconds exceeds 20. Cycles per Second (cps). A unit of frequency. The cycle per second is called the Hertz. Decibel (dB). The decibel is a unit of level which denotes the ratio between two quantities that are proportional to power; the number of decibels corresponding to the ratio sound fields, the sound-pressure ratios are not proportional to the square root of the corresponding power ratios, so that strictly speaking the term decibel should not be used in such cases; however, it is common practice to extend the use of the unit to these cases (see, for example, Sound Pressure Level). Hertz (Hz). (See Cycles per Second. .) Maximum Sound Pressure. The maximum sound pressure for any given cycle of a periodic wave is the maximum absolute value of the instantaneous sound pressure occurring during that cycle. In the case of a sinusoidal sound wave this maximum sound pressure is also called the pressure amplitude. Noise. Unwanted Sound. Noise Level. The acoustical noise level is the sound level. Octave Band Pressure Level. The octave-band pressure level of a sound is the band pressure level for a frequency band corresponding to a specified octave. (The location of the octave-band pressure level on a frequency scale is usually specified as the geometric mean of the upper and lower frequencies of the octave.) Reverberation. Reverberation is the sound that persists at a given point after direct reception from the source has stopped. MCCORMICK FAMILY TRUST November 21, 1990 File: ON12.DOC Reverberation Time (w). The reverberation time for a given frequency is the time required for the average sound pressure level, originally in a steady state, to decrease 60 dB after the source is stopped. Usually the pressure level for the upper part of this range is measured and the result extrapolated to cover 60 dB. Sabin (Square-foot Unit of Absorption). The sabin is a measure of the sound absorption of a surface; it is the equivalent of 1 square foot of perfectly absorptive surface. Sound. (a) Sound is an alteration in pressure, stress, particle displacements, or shear, etc., in an elastic medium, or (b) sound is an auditory sensation evoked by the alterations described above. In case of possible confusion, the term "sound wave" or "elastic wave" may be used for concept (a) and the term "sound sensation" for concept (b). Not all sound waves evoke an auditory sensation. The medium in which the sound exists is often indicated by an appropriate adjective, e.g., air-borne, structure-borne. Sound Level. Sound level, in decibels, is the weighted sound pressure level obtained by use of a sound-level meter whose weighting characteristics are specified in the latest revision of the American Standards Association standard on sound-level meters. The reference pressure is 0.0002 microbar, unless otherwise specified. Sound-level Meter. A sound-level meter is a device which is used to measure sound pressure level or weighted sound pressure level, constructed in accordance with the standard specifications for sound-level meters set up by the American Standards Association. The sound-level meter consists of a microphone, an amplifier to raise the microphone output to useful levels, a calibrated attenuator to adjust the amplification to values appropriate to the sound levels being measured, and an instrument to indicate the measured sound level; optional weighting networks are included to adjust the over-all frequency characteristic of the response; provision is made for an output connection to additional measuring equipment. Sound Pressure Level (Lp). The sound pressure level, in decibels, of a sound is 20 times the logarithm to the base 10 of the ratio of the pressure of this sound to the reference pressure. The reference pressure employed throughout this text is 0.0002 microbar. In many sound fields the sound-pressure ratios are not proportional to the square root of corresponding power ratios and hence cannot be expressed in decibels in the strict sense; however, it is common practice to extend the use of the decibel to these cases. 11 c MCCORMICK FAMILY TRUST November 21, 1990 File: ON12.DOC Spectrum. The spectrum of a function of time is a description of its resolution into components which are sinusoidal functions of time, each of different frequency and (usually) different amplitude and phase; spectrum is also used to signify a continuous range of components, usually wide in extent, within which waves have some specified common characteristic, e.g., audio-frequency spectrum. Transmission Loss. Transmission loss is the reduction in the magnitude of some characteristic of a signal, between two stated points in a transmission system. The characteristic is often some kind of level, such as power level or voltage level; in acoustics, the characteristic that is commonly measured is sound pressure level. If the levels are expressed in decibels, then the transmission loss is likewise in decibels. 12 I I I I 1 I 1 I 1 I 1 I 1 1 I 1 FIGURE 2 AIRPORT INFLUENCE AREA PROJECTED NOISE CONTOURS, CLEAR ZONES AND FLlGHT ACTMTV ZONE McCLELLAN-PALOMAR AIRPORT I ' APPROACH MAP I I I I I I I 1 1 I FIELD ELEV: 328 ft. MSL ' CARLSBAD, Pilomar - i3 CARLSBAD. MC CLELLAN-PALOMAR AIRPORT APPROACH MAP SHOWING TRAFFIC PATTERNS IN RELATIONSHIP TO THE PROJECT r i c i ROOM INTERIOR NOISE CALCULATIONS SUMMARY TABLE This table(s) summarizes the calculated interior Noise levels for each room analyzed. When interior noise levels are shown with an asterisk (*) windows must be closed to meet the interior noise standards. When windows are closed natural ventilaion is restricted. Consequently, Mechanical Ventilation meeting the requirements of the Uniform Building Code is required. f- ASSEMBLY TRANSMISSION LOSS TABLES In this, the second table, the dimensions of building construction assemblies such as doors, windows, etc. are listed with their associated acoustical Transmission Loss (TL) values. The Transmission Loss values for each assembly are subtracted from the exterior levels at each of six octave band widths. The reduced level is then adjusted for room absorption to calculate interior levels. DETAILED CALCULATIONS The noise reduction is calculated separately for each room. All steps of the calculation are shown on each page. r [LO~MCCORMICK FAMILY ON12. CNL -19 NOVEMBER 1990 SUMMARY OF INTERIOR IN DECIBELS COMMUNITY NOISE EQUIVALENT LEVELS c DWELLING UNIT 203 205 206 207 208 211 212 214 217 NON MEZZANINE 7 37 35 40 35 35 40 36 39 35 29 [LOO[L03McCORMICK FAMILY ON12. CNL -19 NOVEMBER 1990 TYPE NAME - ASSEMBLY DESCRIPTIONS AND DATA TRANSMISSION LOSS (DECIBELS) HEIGHT WIDTH AREA Hz Hz Hz Hz Hz Hz DIMENSIONS (FT) 125 250 500 1000 2000 4000 * INDICATES OPENABLE WINDOW - ON12. CNL -19 NOVEMBER 1990 DWELLING UNIT MEZZANINE c INTERIOR EXT. SPL dB(A) LOG A ASSY. TR. LOSS - ABSORP. - NOISE RED. INT. SPL dB (A) - EXT. SPL dB(A) ABSORP. LOG A ASSY. TR. LOSS NOISE RED. INT. SPL dB (A) c - [LO~MCCORMICK FAMILY ROOM CALCULATION NO. 1 CNEL CALCULATION, BY OCTAVE BAND - OFFICE NO. 203 528.00 SQ FT ASSEMBLY 1 - M1 1/4" WINDOW 448.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 62.1 65.1 65.1 62.1 55.1 48.1 70.0 -27.2 -27.2 -27.2 -27.2 -27.2 -27.2 26.5 26.5 26.5 26.5 26.5 26.5 -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 -29.9 -31.8 -36.8 -39.8 -36.7 -43.5 32.2 33.3 28.3 22.3 18.4 4.6 36.7 ASSEMBLY 2 - WALL -272.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 62.1 -27.2 0.0 -24.4 -51.6 10.5 ASSEMBLY 1 ASSEMBLY 2 65.1 65.1 62.1 55.1 48.1 70.0 -27.2 -27.2 -27.2 -27.2 -27.2 0.0 0.0 0.0 0.0 0.0 -40.6 -47.2 -53.1 -55.1 -51.0 -67.8 -74.4 -80.3 -82.3 -78.2 0.0 0.0 0.0 0.0 0.0 12.1 WALL SUMMARY - INTERIOR NOISE LEVELS AREA EXTERIOR NOISE INTERIOR (SQ FT) CNEL REDUCTION CNEL """""""""""""""""" """""""""""""""""" 448.0 70.0 33.3 36.7 -272.0 70.0 57.9 12.1 WINDOWS OPEN : 36.7 WINDOWS CLOSED : 36.7 McCORMICK FAMILY ON12. CNL -19 NOVEMBER 1990 ROOM CALCULATION NO. 2 DWELLING UNIT MEZZANINE INTERIOR EXT. SPL dB(A) ABSORP. LOG A ASSY. TR. LOSS NOISE RED. INT. SPL dB(A) EXT. SPL dB (A) ABSORP. LOG A ASSY. TR. LOSS NOISE RED. INT. SPL dB(A) CNEL CALCULATION, BY OCTAVE BAND - OFFICE NO. 205 384.00 SQ FT ASSEMBLY 1 - M1 1/4" WINDOW 224.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 62.1 65.1 65.1 62.1 55.1 48.1 70.0 -25.8 -25.8 -25.8 -25.8 -25.8 -25.8 23.5 23.5 23.5 23.5 23.5 23.5 -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 -31.5 -33.4 -38.4 -41.4 -38.3 -45.1 30.5 31.6 26.6 20.6 16.7 2.9 35.1 ASSEMBLY 2 - WALL -96.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 62.1 -25.8 0.0 -24.4 -50.2 11.8 ASSEMBLY 1 ASSEMBLY 2 65.1 65.1 62.1 55.1 48.1 70.0 -25.8 -25.8 -25.8 -25.8 -25.8 0.0 0.0 0.0 0.0 0.0 -40.6 -47.2 -53.1 -55.1 -51.0 -66.4 -73.0 -78.9 -80.9 -76.8 0.0 0.0 0.0 0.0 0.0 13.1 WALL SUMMARY - INTERIOR NOISE LEVELS AREA EXTERIOR NOISE INTERIOR (SQ FT) CNEL REDUCTION CNEL """""""""""""""""" """""""""""""""""" 224.0 70.0 34.9 35.1 -96.0 70.0 56.9 13.1 WINDOWS OPEN : 35.1 WINDOWS CLOSED : 35.1 McCORMICK FAMILY ON12. CNL -19 NOVEMBER 1990 DWELLING UNIT MEZZANINE INTERIOR EXT. SPL dB (A) ABSORP. LOG A ASSY. TR. LOSS NOISE RED. INT. SPL dB (A) EXT. SPL dB (A) ABSORP. LOG A ASSY. TR. LOSS NOISE RED. INT. SPL dB(A) EXT. SPL dB (A) ABSORP. LOG A ASSY. TR. LOSS NOISE RED. INT. SPL dB (A) ROOM CALCULATION NO. 3 CNEL CALCULATION, BY OCTAVE BAND - OFFICE NO. 206 816.00 SQ FT ASSEMBLY 1 - M1 1/4" WINDOW 224.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 62.1 65.1 65.1 62.1 55.1 48.1 -29.1 -29.1 -29.1 -29.1 -29.1 -29.1 23.5 23.5 23.5 23.5 23.5 23.5 -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 -34.8 -36.7 -41.7 -44.7 -41.6 -48.4 27.3 28.4 23.4 17.4 13.5 0.0 ASSEMBLY 2 - M1 1/4" WINDOW 448.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 62.1 65.1 65.1 62.1 55.1 48.1 -29.1 -29.1 -29.1 -29.1 -29.1 -29.1 26.5 26.5 26.5 26.5 26.5 26.5 -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 -31.8 -33.7 -38.7 -41.7 -38.6 -45.4 30.3 31.4 26.4 20.4 16.5 2.7 ASSEMBLY 3 - WALL -400.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 62.1 65.1 65.1 62.1 55.1 48.1 -29.1 -29.1 -29.1 -29.1 -29.1 -29.1 0.0 0.0 0.0 0.0 0.0 0.0 -24.4 -40.6 -47.2 -53.1 -55.1 -51.0 -53.5 -69.7 -76.3 -82.2 -84.2 -80.1 8.6 0.0 0.0 0.0 0.0 0.0 WALL SUMMARY - INTERIOR NOISE LEVELS AREA EXTERIOR NOISE INTERIOR (SQ FT) CNEL REDUCTION CNEL """""""""""""""""" """""""""""""""""" ASSEMBLY 1 224.0 70.0 38.2 31.8 ASSEMBLY 2 448.0 70.0 35.2 34.8 ASSEMBLY 3 -400.0 70.0 59.1 10.9 c c ASSEMBLY 1 - M1 1/4" WINDOW 448.00 TOTAL SQ FT 7 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 ABSORP . -29.1 -29.1 -29.1 -29.1 -29.1 -29.1 LOG A ASSY. 26.5 26.5 26.5 26.5 26.5 26.5 TR. LOSS -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 - 70.0 31.8 70.0 34.8 70.0 10.9 70.0 - NOISE RED. -31.8 -33.7 -38.7 -41.7 -38.6 -45.4 INT. SPL dB(A) 30.3 31.4 26.4 20.4 16.5 2.7 34.8 ASSEMBLY 2 - M1 1/4" WINDOW 448.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 70.0 ABSORP. -29.1 -29.1 -29.1 -29.1 -29.1 -29.1 LOG A ASSY. 26.5 26.5 26.5 26.5 26.5 26.5 TR. LOSS -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 NOISE RED. -31.8 -33.7 -38.7 -41.7 -38.6 -45.4 INT. SPL dB(A) 30.3 31.4 26.4 20.4 16.5 2.7 34.8 ASSEMBLY 3 - WALL -704.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 70.0 ABSORP. -29.1 -29.1 -29.1 -29.1 -29.1 -29.1 LOG A ASSY. 0.0 0.0 0.0 0.0 0.0 0.0 TR. LOSS -24.4 -40.6 -47.2 -53.1 -55.1 -51.0 NOISE RED. -53.5 -69.7 -76.3 -82.2 -84.2 -80.1 INT. SPL dB (A) 8.6 0.0 0.0 0.0 0.0 0.0 10.9 WALL SUMMARY - INTERIOR NOISE LEVELS AREA EXTERIOR NOISE INTERIOR (sQ FT) CNEL REDUCTION CNEL """""""""""""""""" """""""""""""""""" ASSEMBLY 1 448.0 70.0 35.2 34.8 ASSEMBLY 2 448.0 70.0 35.2 34.8 ASSEMBLY 3 -704.0 70.0 59.1 10.9 WINDOWS OPEN : 40.3 WINDOWS CLOSED : 40.3 McCORMICK FAMILY ON12. CNL -19 NOVEMBER 1990 ROOM CALCULATION NO. 4 DWELLING UNIT MEZZANINE c INTERIOR CNEL CALCULATION, BY OCTAVE BAND - OFFICE NO. 207 357.00 SQ FT ASSEMBLY 1 - M1 1/4" WINDOW 224.00 TOTAL SQ FT - 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 70.0 - ABSORP. -25.5 -25.5 -25.5 -25.5 -25.5 -25.5 LOG A ASSY. 23.5 23.5 23.5 23.5 23.5 23.5 TR. LOSS -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 NOISE RED. -31.2 -33.1 -38.1 -41.1 -38.0 -44.8 INT. SPL dB(A) 30.9 32.0 27.0 21.0 17.1 3.3 35.4 - - ASSEMBLY 2 - WALL -88.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz - EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 70.0 ABSORP . -25.5 -25.5 -25.5 -25.5 -25.5 -25.5 LOG A ASSY. 0.0 0.0 0.0 0.0 0.0 0.0 TR. LOSS -24.4 -40.6 -47.2 -53.1 -55.1 -51.0 c NOISE RED. -49.9 -66.1 -72.7 -78.6 -80.6 -76.5 INT. SPL dB(A) 12.2 0.0 0.0 0.0 0.0 0.0 13.3 - WALL SUMMARY - INTERIOR NOISE LEVELS - AREA EXTERIOR NOISE INTERIOR (SQ FT) CNEL REDUCTION CNEL .................................... ASSEMBLY 1 224.0 70.0 34.6 35.4 ASSEMBLY 2 -88.0 70.0 56.7 13.3 I WINDOWS OPEN : 35.4 WINDOWS CLOSED : 35.4 - McCORMICK FAMILY ON12. CNL - 19 NOVEMBER 1990 ROOM CALCULATION NO. 5 DWELLING UNIT MEZZANINE INTERIOR CNEL CALCULATION, BY OCTAVE BAND - OFFICE NO. 208 357.00 SQ FT EXT. SPL dB (A) ABSORP. LOG A ASSY. TR. LOSS NOISE RED. INT, SPL dB (A) EXT. SPL dB(A) ABSORP. LOG A ASSY, TR. LOSS NOISE RED, INT. SPL dB(A) ASSEMBLY 1 - M1 1/4" WINDOW 224.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 62.1 65.1 65.1 62.1 55.1 48.1 70.0 -25.5 -25.5 -25.5 -25.5 -25.5 -25.5 23.5 23.5 23.5 23.5 23.5 23.5 -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 -31.2 -33.1 -38.1 -41.1 -38.0 -44.8 30.9 32.0 27.0 21.0 17.1 3.3 35.4 ASSEMBLY 2 - WALL -88.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 62.1 -25.5 0.0 -24.4 -49.9 12.2 ASSEMBLY 1 ASSEMBLY 2 65.1 65.1 62.1 55.1 48.1 70.0 -25.5 -25.5 -25.5 -25.5 -25.5 0.0 0.0 0.0 0.0 0.0 -40.6 -47.2 -53.1 -55.1 -51.0 -66.1 -72.7 -78.6 -80.6 -76.5 0.0 0.0 0.0 0.0 0.0 13.3 WALL SUMMARY - INTERIOR NOISE LEVELS AREA EXTERIOR NOISE INTERIOR (SQ FT) CNEL REDUCTION CNEL """""""""""""""""" """""""""""""""""" 224.0 70.0 34.6 35.4 -88.0 70.0 56.7 13.3 WINDOWS OPEN : 35.4 WINDOWS CLOSED : 35.4 McCORMICK FAMILY ON12. CNL - 19 NOVEMBER 1990 ROOM CALCULATION NO. 6 DWELLING UNIT MEZZANINE - INTERIOR CNEL CALCULATION, BY OCTAVE BAND - OFFICE NO. 211 260.00 SQ FT ASSEMBLY 1 - M1 1/4" WINDOW 448.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 70.0 - ABSORP. -24.1 -24.1 -24.1 -24.1 -24.1 -24.1 LOG A ASSY. 26.5 26.5 26.5 26.5 26.5 26.5 TR. LOSS -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 NOISE RED. -26.8 -28.7 -33.7 -36.7 -33.6 -40.4 INT. SPL dB(A) 35.3 36.3 31.3 25.4 21.5 7.7 39.8 - - ASSEMBLY 2 - WALL -288.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz I EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 70.0 ABSORP. -24.1 -24.1 -24.1 -24.1 -24.1 -24.1 LOG A ASSY. 0.0 0.0 0.0 0.0 0.0 0.0 TR. LOSS -24.4 -40.6 -47.2 -53.1 -55.1 -51.0 NOISE RED. -48.5 -64.7 -71.3 -77.2 -79.2 -75.1 INT. SPL dB(A) 13.5 0.3 0.0 0.0 0.0 0.0 14.4 - - WALL SUMMARY - INTERIOR NOISE LEVELS """""""""""""""""" """""""""""""""""" - AREA EXTERIOR NOISE INTERIOR (SQ FT) CNEL REDUCTION CNEL ASSEMBLY 1 448.0 70.0 30.2 39.8 ASSEMBLY 2 -288.0 70.0 55.6 14.4 L WINDOWS OPEN : 39.8 WINDOWS CLOSED : 39.8 McCORMICK FAMILY ON12. CNL - 19 NOVEMBER 1990 ROOM CALCULATION NO. 7 DWELLING UNIT MEZZANINE INTERIOR CNEL CALCULATION, BY OCTAVE BAND - OFFICE NO. 212 420.00 SQ FT ASSEMBLY 1 - M1 1/4" WINDOW 224.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 ABSORP. -26.2 -26.2 -26.2 -26.2 -26.2 -26.2 LOG A ASSY. 23.5 23.5 23.5 23.5 23.5 23.5 TR. LOSS -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 NOISE RED. -31.9 -33.8 -38.8 -41.8 -38.7 -45.5 INT. SPL dB(A) 30.2 31.2 26.2 20.3 16.4 2.6 ASSEMBLY 2 - M1 1/4" WINDOW 56.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 ABSORP. -26.2 -26.2 -26.2 -26.2 -26.2 -26.2 LOG A ASSY. 17.5 17.5 17.5 17.5 17.5 17.5 TR. LOSS -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 NOISE RED. -38.0 -39.9 -44.9 -47.9 -44.8 -51.6 INT. SPL dB(A) 24.1 25.2 20.2 14.2 10.3 0.0 ASSEMBLY 3 - WALL -120.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 ABSORP. -26.2 -26.2 -26.2 -26.2 -26.2 -26.2 LOG A ASSY. 0.0 0.0 0.0 0.0 0.0 0.0 TR. LOSS -24.4 -40.6 -47.2 -53.1 -55.1 -51.0 NOISE RED. -50.6 -66.8 -73.4 -79.3 -81.3 -77.2 INT. SPL dB(A) 11.5 0.0 0.0 0.0 0.0 0.0 WALL SUMMARY - INTERIOR NOISE LEVELS AREA EXTERIOR NOISE INTERIOR (SQ FT) CNEL REDUCTION CNEL "~""""""~"~""""""""~ """""""""""""""""" ASSEMBLY 1 224.0 70.0 35.3 34.7 ASSEMBLY 2 56.0 70.0 41.3 28.7 ASSEMBLY 3 -120.0 70.0 57.2 12.8 WINDOWS OPEN : 35.7 WINDOWS CLOSED : 35.7 70.0 34.7 70.0 28.7 70.0 12.8 McCORMICK FAMILY ON12. CNL - 19 NOVEMBER 1990 ROOM CALCULATION NO. 8 DWELLING UNIT MEZZANINE INTERIOR CNEL CALCULATION, BY OCTAVE BAND - OFFICE NO. 214 713.00 SQ FT ASSEMBLY 1 - MI 1/4" WINDOW 448.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 ABSORP. -28.5 -28.5 -28.5 -28.5 -28.5 -28.5 LOG A ASSY. 26.5 26.5 26.5 26.5 26.5 26.5 TR. LOSS -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 NOISE RED. -31.2 -33.1 -38.1 -41.1 -38. o -44. a INT. SPL dB(A) 30.9 32.0 27.0 21.0 17.1 3.3 ASSEMBLY 2 - M1 1/4" WINDOW 56.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 ABSORP. -28.5 -28.5 -28.5 -28.5 -28.5 -28.5 LOG A ASSY, 17.5 17.5 17.5 17.5 17.5 17.5 TR. LOSS -29.2 -31.1 -36.1 -39.1 -36.0 -42. a NOISE RED. -40.2 -42.1 -47.1 -50.1 -47.0 -53. a INT. SPL dB(A) 21.8 22.9 17.9 11.9 8.0 0.0 ASSEMBLY 3 - WALL -264.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 ABSORP. -28.5 -28.5 -28.5 -28.5 -28.5 -28.5 LOG A ASSY. 0.0 0.0 0.0 0.0 0.0 0.0 TR. LOSS -24.4 -40.6 -47.2 -53.1 -55.1 -51.0 NOISE RED. -52.9 -69.1 -75.7 -81.6 -83.6 -79.5 INT, SPL dB (A) 9.2 0.0 0.0 0.0 0.0 0.0 WALL SUMMARY - INTERIOR NOISE LEVELS AREA EXTERIOR NOISE INTERIOR (SQ FT) CNEL REDUCTION CNEL """""""""""""""""" """""""""""""""""" ASSEMBLY 1 448.0 70.0 34.6 35.4 ASSEMBLY 2 56.0 70.0 43.6 26.4 ASSEMBLY 3 -264.0 70.0 58.8 11.2 ASSEMBLY 1 - M1 1/4" WINDOW 448.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 ABSORP . -28.5 -28.5 -28.5 -28.5 -28.5 -28.5 LOG A ASSY. 26.5 26.5 26.5 26.5 26.5 26.5 TR. LOSS -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 NOISE RED. -31.2 -33.1 -38.1 -41.1 -38. o -44. a 70.0 35.4 70.0 26.4 70.0 11.2 70.0 - INT. SPL dB(A) 30.9 32.0 27.0 21.0 17.1 3.3 35.4 ASSEMBLY 2 - WALL -264.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 ABSORP. -28.5 LOG A ASSY. 0.0 TR. LOSS -24.4 NOISE RED. -52 . 9 INT. SPL dB (A) 9.2 ASSEMBLY 1 ASSEMBLY 2 65.1 65.1 62.1 55.1 48.1 70.0 -28.5 -28.5 -28.5 -28.5 -28.5 0.0 0 . 0 0.0 0.0 0.0 -40.6 -47.2 -53.1 -55.1 -51.0 -69.1 -75.7 -81.6 -83.6 -79.5 0.0 0.0 0.0 0.0 0.0 11.2 WALL SUMMARY - INTERIOR NOISE LEVELS AREA EXTERIOR NOISE INTERIOR (SQ FT) CNEL REDUCTION CNEL """""""""""""""""" """""""""""""""""" 448.0 70.0 34.6 35.4 -264.0 70.0 58.8 11.2 WINDOWS OPEN : 38.7 WINDOWS CLOSED : 38.7 McCORMICK FAMILY ON12. CNL - 19 NOVEMBER 1990 ROOM CALCULATION NO. 9 DWELLING UNIT MEZZANINE - INTERIOR CNEL CALCULATION, BY OCTAVE BAND - OFFICE NO. 217 713.00 SQ FT ASSEMBLY 1 - M1 1/4" WINDOW 448.00 TOTAL SQ FT - 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 70.0 - ABSORP. -28.5 -28.5 -28.5 -28.5 -28.5 -28.5 LOG A ASSY. 26.5 26.5 26.5 26.5 26.5 26.5 TR. LOSS -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 7 NOISE RED. -31.2 -33.1 -38.1 -41.1 -38.0 -44.8 INT. SPL dB(A) 30.9 32.0 27.0 21.0 17.1 3.3 35.4 c ASSEMBLY 2 - WALL -200.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz - EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 70.0 ABSORP. -28.5 -28.5 -28.5 -28.5 -28.5 -28.5 LOG A ASSY. 0.0 0.0 0.0 0.0 0.0 0.0 TR. LOSS -24.4 -40.6 -47.2 -53.1 -55.1 -51.0 - NOISE RED. -52.9 -69.1 -75.7 -81.6 -83.6 -79.5 INT. SPL dB(A) 9.2 0.0 0.0 0.0 0.0 0.0 11.2 - WALL SUMMARY - INTERIOR NOISE LEVELS - AREA EXTERIOR NOISE INTERIOR (SQ FT) CNEL REDUCTION CNEL """""""""""""""""" """~"""~""""""""""" ASSEMBLY 1 448.0 70.0 34.6 35.4 ASSEMBLY 2 -200.0 70.0 58.8 11.2 - c WINDOWS OPEN : 35.4 WINDOWS CLOSED : 35.4 McCORMICK FAMILY ON12. CNL - 19 NOVEMBER 1990 ROOM CALCULATION NO. 10 DWELLING UNIT MEZZANINE c INTERIOR CNEL CALCULATION, BY OCTAVE BAND - NON OCCUPIED AREA 20864.00 S ASSEMBLY 1 - M1 1/4" WINDOW 1344.00 TOTAL SQ FT - 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 70.0 - ABSORP , -43.2 -43.2 -43.2 -43.2 -43.2 -43.2 LOG A ASSY. 31.3 31.3 31.3 31.3 31.3 31.3 TR, LOSS -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 - NOISE RED. -41.1 -43.0 -48.0 -51.0 -47.9 -54.7 INT. SPL dB(A) 21.0 22.1 17.1 11.1 7.2 0.0 25.5 - ASSEMBLY 2 - M1 1/4" WINDOW 336.00 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz I EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 70.0 ABSORP. -43.2 -43.2 -43.2 -43.2 -43.2 -43.2 LOG A ASSY. 25.3 25.3 25.3 25.3 25.3 25.3 TR. LOSS -29.2 -31.1 -36.1 -39.1 -36.0 -42.8 NOISE RED. -47.1 -49.0 -54.0 -57.0 -53.9 -60.7 INT. SPL dB(A) 15.0 16.0 11.0 5.1 1.2 0.0 19.5 - - ASSEMBLY 3 - WALL -528.00 TOTAL SQ FT - 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 70.0 ABSORP. -43.2 -43.2 -43.2 -43.2 -43.2 -43.2 LOG A ASSY. 0.0 0.0 0.0 0.0 0.0 0.0 TR. LOSS -24.4 -40.6 -47.2 -53.1 -55.1 -51.0 c NOISE RED. -67.6 -83.8 -90.4 -96.3 -98.3 -94.2 - INT. SPL dB(A) 0.0 0.0 0.0 0.0 0.0 0.0 7.8 WALL SUMMARY - INTERIOR NOISE LEVELS AREA EXTERIOR NOISE INTERIOR (SQ FT) CNEL REDUCTION CNEL """""""""_""""""""~ """""""""""""""""" - ASSEMBLY 1 1344.0 70.0 44.5 25.5 ASSEMBLY 2 336.0 70.0 50.5 19.5 ASSEMBLY 3 -528.0 70.0 62.2 7.8 - ASSEMBLY 1 - M1 1/4" WINDOW 336.00 TOTAL SQ FT - 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 70.0 ABSORP. -43.2 -43.2 -43.2 -43.2 -43.2 -43.2 LOG A ASSY. 25.3 25.3 25.3 25.3 25.3 25.3 TR. LOSS -29.2 -31.1 -36.1 -39.1 -36.0 -42. a - - NOISE RED. -47.1 -49.0 -54.0 -57.0 -53.9 -60.7 INT. SPL dB(A) 15.0 16.0 11.0 5.1 1.2 0.0 19.5 c ASSEMBLY 2 - WALL 822.40 TOTAL SQ FT 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz - EXT. SPL dB(A) 62.1 65.1 65.1 62.1 55.1 48.1 70.0 ABSORP. -43.2 -43.2 -43.2 -43.2 -43.2 -43.2 LOG A ASSY. 29.2 29.2 29.2 29.2 29.2 29.2 TR. LOSS -24.4 -40.6 -47.2 -53.1 -55.1 -51.0 NOISE RED. -38.4 -54.6 -61.2 -67.1 -69.1 -65.0 INT. SPL dB(A) 23.6 10.4 3.8 0.0 0.0 0.0 23.9 - c WALL SUMMARY - INTERIOR NOISE LEVELS AREA - EXTERIOR NOISE INTERIOR (SQ FT) CNEL REDUCTION CNEL """""""""""""""""" """""""""""""""""" ASSEMBLY 1 336.0 70.0 50.5 19.5 ASSEMBLY 2 822.4 70.0 46.1 23.9 c c c WINDOWS OPEN : 29.0 WINDOWS CLOSED : 29.0 r r r r I r r I r r r r r r r r r r r I SOURCE TO RECEIVER CROSS-SECTIONS The cross-section plots show the relationship of the salient elements of the noise source or sources to the receiver discussed in this report. These cross-sections show the points where noise levels are calculated to assist in visualizing the receiver’s exposure to the noise pathway. 1 1 NOISE CONTROL MCCORMICK FAMILY TRUST LOT 37 ON12. top Layer 0 " -natural grade finish grade 0' 250 ' 500 ' 750 ' PALOMAR A I RPORT m Num XL (FT) YL [FT) DESCRIPTION a 0.00 324.00 PALOMAR AIRPORT c 465.00 314.00 b 450.00 314.00 PL d 480.00 314.00 168' 2 STORY BLDG mm fh lllllllrn Num XL (FT) YL (FT) DESCRIPTION e 648.00 314.00 f 813.00 308.00 BACK PL g 818.00 302.00 KELLOGG AVE ROAD EDGE h 832.00 302.00 ROAD CL 19: 10: 53 - 11-19-1990