Fresno City Council
August 24, 2023

Exhibit H – Noise Assessment
AZ Office CA Office
4960 S. Gilbert Road, Ste 1-461 1197 Los Angeles Avenue, Ste C-256 Chandler, AZ 85249 Simi Valley, CA 93065
p. (602) 774-1950 p. (805) 426-4477
www.mdacoustics.com

MD Acoustics, LLC 1
JN: 04032301_Letter Report
March 3, 2023

Mr. Moe Assad
Mass Investment Group
1788 E Niles
Fresno, CA 93720

Subject: SurfThru Car Wash McKinley and Fine – Noise Assessment – City of Fresno, CA

Dear Mr. Assad:

MD Acoustics, LLC (MD) has completed a noise assessment for the proposed SurfThru Car Wash located at the north west corner of East McKinley avenue and North Fine Avenue , in Fresno CA. This assessment reviews the projected car wash operational noise levels and compares to the City’s noise ordinance. The project proposes an approximately 2,003 square foot car wash tunnel with 16 vacuum bays.

1.0 Assessment Overview
This assessment evaluates the projections operational noise and compares to the City’s noise ordinance for informational purposes. The project location map is located in Exhibit A. The site plan utilized for the project is indicated in Exhibit BA glossary of Acoustical Terms is located in Appendix A.

2.0 Acoustical Requirements
The City of Fresno outlines their noise regulations and standards within the Code of Ordinances from the Municipal Code. Article 1, Section 10-102 outlines the noise standards. As outlined in Section 10 -102, residential noise levels may not exceed 60 dBA during daytime hours (7 AM-7PM), 55 during evening hours (7PM-10PM). Additionally, commercial noise levels may not exceed 65 dBA during the daytime (7AM-7PM).

Therefore, the project may not exceed the strictest residential noise level during operational hours of 55 dBA and the commercial noise level of 65 dBA. at the corresponding adjacent properties.

3.0 Study Method and Procedure
SoundPLAN Acoustic Model
SoundPLAN (SP) acoustical modeling software was utilized to model future worst‐case stationary noise impacts to the adjacent land uses. SP is capable of evaluating multiple stationary noise source impacts at various receiver locations.

M

ACOUSTICS
Sound Solutions for Planning and Design
SurfThru Car Wash McKinley and Fine
Noise Assessment
City of Fresno, CA

MD Acoustics, LLC 2
JN: 04032301_Letter Report
Exhibit A
Location Map

SurfThru Car Wash McKinley and Fine
Noise Assessment
City of Fresno, CA

MD Acoustics, LLC 3
JN: 04032301_Letter Report
Exhibit B
Site Plan

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2 (N) 25' DRIVEWAY APPROACH LOCATION
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14. (£) EXISTING TEtEPHONE MANHOU:

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20 (£) STORM DRAIN GRAT£
21 (£) SIGNS TO BE RELOCATED
22 (E) ELEClRIC BOX
2J. (N) FIRE LANE
24 (E) CAR STALLS TO BE REMOVED
25 (£) RETAINED £XISTING CAR STALLS
26 (£) Silt BUILDING
27 (N) CONSlRtJCT A CONCERETE/ASPHALT OORIVE
ACCESS PER PUBLIC WORKS STO P-21

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A1 .01
SurfThru Car Wash McKinley and Fine
Noise Assessment
City of Fresno, CA

MD Acoustics, LLC 4
JN: 04032301_Letter Report
SP’s software utilizes algorithms (based on the inverse square law and reference equipment noise level data) to calculate noise level projections. The software allows the user to input specific noise sources, spectral content, sound barriers, building placement, topography, and sensitive receptor locations.

The future w orst-case noise level projections were modeled using referenced sound level data for the various stationary on-site sources (vacuums, vacuum turbine motors and car wash blowers at the exit).

The SP model assumes a total of 16 vacuums and the dryer system are operating simultaneously (worst- case scenario), when the noise will in reality be intermittent and lower in noise level.

In addition, the modeling takes into account existing property line walls, commercial buildings, and equipment enclosures proposed for the vacuum turbine. The reference vacuum equipment sound level data is provided in Appendix B.

All other noise producing equipment (e.g., compressors, pumps) will be housed within mechanical equipment rooms.

The following outlines the project design features:

1. The project will incorporate a IDC 120HP Stealth Predator Blower system within the tunnel.

2. The project proposes to house the vacuum turbine motors inside the attached fully enclosed equipment room.

SoundPlan input and output values are provided in Appendix C.

4.0 Noise Level Projections and Recommendations
The worst-case stationary noise was modeled using SoundPLAN acoustical modeling software. Worst-case assumes the blowers, vacuums and equipment are always operational when in reality the noise will be intermittent and cycle on/off depending on the customer usage.

The modeling takes into account the proposed tunnel and equipment design, enclosure for the vacuum turbines. Project operations are anticipated to occur within the City’s allowable daytime standards.

A total of three (3) receptors (R1 – R3) were modeled to evaluate the proposed project’s operational impact. R1 – R2 represents the noise level to the nearest commercial uses. R3 represents the nearest residential uses south of the project site across E McKinley Ave.

All yellow dots represent either a property line or a sensitive receptor such as an outdoor sensitive area (e.g. courtyard, patio, backyard, etc).

Exhibit C illustrates the noise level projections associated with the car wash noise operations when all equipment is fully active (even though the noise will be intermittent). The noise projections demonstrate that the operational noise level during operational hours to the nearest commercial uses will range between 60 to 61 dBA and will not exceed the City’s 65 dBA commercial noise limit. The noise level at the SurfThru Car Wash McKinley and Fine
Noise Assessment
City of Fresno, CA

MD Acoustics, LLC 5
JN: 04032301_Letter Report
residences to the south are anticipated to measure 53 dBA which does not exceed the residential evening noise standard of 55 dBA.

5.0 Conclusions
MD is pleased to provide this noise assessment for the SurfThru Car Wash project. Project operations are anticipated to comply with the City’s noise ordinance. If you have any questions regarding this analysis, please call our office at (805) 426-4477.

Sincerely,
MD Acoustics, LLC

Robert Pearson
Acoustical Consultant

SurfThru Car Wash McKinley and Fine
Noise Assessment
City of Fresno, CA

MD Acoustics, LLC 6
JN: 04032301_Letter Report
Exhibit C
Operational Noise Levels

04032301 Surfthru Fresno
Noise Level Contours
IDC 120HP Predator+ 16 Vacuums
Levels in dB{A)
< 45
45 - 50
50 - 55
55 - 60
60 - 65
>= 65
Signs and symbols
!ffl Level ta ble, dBA
- Buildings
D Tunnel Enclosure
• Vacuums
Point Receivers
Length scale 1:90
0 50 100 200 300
--c:::==-----= ==== feet

ACOUSTIC
Sound Solutions for Planning and Des,gr

Appendix A
Glossary of Acoustical Terms

Glossary of Terms

A-Weighted Sound Level: The sound pressure level in decibels as measured on a sound level meter using the A -weighted filter network. The A -weighting filter de-emphasizes the very low and very high frequency components of the sound in a manner similar to the response of the human ear. A numerical method of rating human judgment of loudness.

Ambient Noise Level: The composite of noise from all sources, near and far. In this context, the ambient noise level constitutes the normal or existing level of environmental noise at a given location.

Community Noise Equivalent Level (CNEL): The average equivalent A -weighted sound level during a 24-hour day, obtained after addition of five (5) decibels to sound levels in the evening from 7:00 to 10:00 PM and after addition of ten (10) decibels to sound levels in the night before 7:00 AM and after 10:00 PM.

Day-Night-Level (DNL or LDN): The average equivalent A-weighted sound level during a 24-hour day, obtained after addition of ten (10) decibels to sound levels in the night before 7:00 AM and after 10:00 PM.

Decibel (dB): A unit for measuring the amplitude of a sound, equal to 20 times the logarithm to the base 10 of the ratio of the pressure of the sound measured to the reference pressure, which is 20 micro-pascals.

dB(A): A-weighted sound level (see definition above).

Equivalent Sound Level (LEQ): The sound level corresponding to a steady noise level over a given sample period with the same amount of acoustic energy as the actual time varying noise level.

The energy average noise level during the sample period.

Habitable Room: Any room meeting the requirements of the Uniform Building Code or other applicable regulations which is inten ded to be used for sleeping, living, cooking or dining purposes, excluding such enclosed spaces as closets, pantries, bath or toilet rooms, service rooms, connecting corridors, laundries, unfinished attics, foyers, storage spaces, cellars, utility rooms and similar spaces.

L(n): The A-weighted sound level exceeded during a certain percentage of the sample time. For example, L10 in the sound level exceeded 10 percent of the sample time. Similarly L50, L90 and L99, etc.

Noise: Any unwanted sound or sound which is undesirable because it interferes with speech and hearing, or is intense enough to damage hearing, or is otherwise annoying. The State Noise Control Act defines noise as "...excessive undesirable sound...".

Noise Criteria (NC) Method : This metric plots octave band sound levels against a family of reference curves, with the number rating equal to the highest tangent line value as demonstrated in Figure 1.

Percent Noise Levels: See L(n).

Room Criterion (RC) Method: When sound quality
in the space is important, the RC metric provides a
diagnostic tool to quantify both the speech
interference level and spectral imbalance.

Sound Level (Noise Level): The weighted sound
pressure level obtained by use of a sound level
meter having a standard frequency -filter for
attenuating part of the sound spectrum.

Sound Level Meter: An instrument, including a
microphone, an amplifier, an output meter, and
frequency weighting networks for the
measurement and determination of noise and
sound levels.

Sound Transmission Class (STC ): To quantify STC, a Transmission Loss (TL) measurement is performed in a laboratory over a range of 16 third-octave bands between 125 – 4,000 Hertz (Hz).

The average human voice creates sound within the 125 – 4,000 Hz 1/3rd octave bands.

STC is a single-number rating given to a particular material or assembly. The STC rating measures the ability of a material or an assembly to resist airborne sound transfer over the spe cified frequencies (see ASTM International Classification E413 and E90). In general, a higher STC rating corresponds with a greater reduction of noise transmitting through a partition.

STC is highly dependent on the construction of the partition. The STC o f a partition can be increased by: adding mass, increasing or adding air space, adding absorptive materials within the assembly. The STC rating does not assess low frequency sound transfer (e.g. sounds less than 125 Hz). Special consideration must be given to spaces where the noise transfer concern has lower frequencies than speech, such as mechanical equipment and or/or music. The STC rating is a lab test that does not take into consideration weak points, penetrations, or flanking paths.

Even with a high STC rating, any penetration, air-gap, or “flanking path can seriously degrade the isolation quality of a wall. Flanking paths are the means for sound to transfer from one space to FIGURE 1: Sample NC Curves and
Sample Spectrum Levels
80 70
60 'll
J w >
~ !50
Ill
a: ::,
fl)
fl)
If 40
Q
z ::,
0 U)
30 20
10 31.5 63 125 250 6()0 lk 21< 4k Iii;
OCTAVE SANO f R QU CY, t-ll

another other than through the wall. Sound can flank over, under, or around a wall. Sound can also travel through common ductwork, plumbing or corridors. Noise will travel between spaces at the weakest points. Typically, there is no reason to spend money or effort to improve the walls until all weak points are controlled first.

Outdoor Living Area: Outdoor spaces that are associated with residential land uses typically used for passive recreational activities or other noise-sensitive uses. Such spaces include patio areas, barbecue areas, jacuzzi areas, etc. associated with reside ntial uses; outdoor patient recovery or resting areas associated with hospitals, convalescent hospitals, or rest homes; outdoor areas associated with places of worship which have a significant role in services or other noise-sensitive activities; and outdo or school facilities routinely used for educational purposes which may be adversely impacted by noise. Outdoor areas usually not included in this definition are: front yard areas, driveways, greenbelts, maintenance areas and storage areas associated with residential land uses; exterior areas at hospitals that are not used for patient activities; outdoor areas associated with places of worship and principally used for short -term social gatherings; and, outdoor areas associated with school facilities that are not typically associated with educational uses prone to adverse noise impacts (for example, school play yard areas).

Percent Noise Levels: See L(n).

Sound Level (Noise Level): The weighted sound pressure level obtained by use of a sound level meter having a standard frequency-filter for attenuating part of the sound spectrum.

Sound Level Meter: An instrument, including a microphone, an amplifier, an output meter, and frequency weighting networks for the measurement and determination of noise and sound levels.

Single Event Noise Exposure Level (SENEL): The dB(A) level which, if it lasted for one second, would produce the same A-weighted sound energy as the actual event.

Appendix B
Referenced Equipment Noise Levels
SYM.

DATE
ECN SIG. DESCRIPTION ENG.

SCALE:FILE NUMBER:

NOTICE: This drawing is the property of THE NEW YORK BLOWERCO. and is loaned subject to the condition that it shall not be

reproduced, copied, loaned or submitted to outside parties with out
our consent.

REV.

TOL:

DWG.SIZE

PART NUMBER
MAT'L:

GENERAL NOTES:1. UNLESS OTHERWISE SPECIFIED ALL DIMENSIONS ARE IN INCHES.2. ALL FORMS ARE UP, UNLESS OTHER WISE SPECIFIED.3. DIMENSIONS IN ( ) ARE FOR REFERENCE ONLY.

B
B
DRAWN BY:SEQUENCE:

PROJECT:DESCRIPTION:

ENGINEER:

A5604473

WITH ARCHES
1/31/2018

bogucki

DRAWN DATE:

Visit us on the Web: http://www.nyb.comPhone: (800) 208-7918 Email: [email protected] THE NEW YORK BLOWER COMPANY7660 Quincy StreetWillowbrook, IL 60527-5530 2875.7 lbmass
MASS:

A
36 3648
1 4
84 THIS HEIGHTIS ADJUSTABLE
FROM84"-120"
120
32 153
60 3 16
95 3 16
122
11 16
104
1 2
31 185
127
11 16
120189
3 8
NOTICE: This drawing is property of International Drying Corporation and is loaned subject to the condition that it shall not be reproduced, copied, loaned or submitt ed to outside parties without our consent.

International Drying Corporation
2510 IL Route 176, Suite G
Prairie Grove, IL 60014
Phone (800) 736-6412
[email protected]
WSP II-10
I
1· /7 I
I
7 I
I ---t
I I
I
I
I
I
J
SYM.

DATE
ECN SIG. DESCRIPTION ENG.

SCALE:FILE NUMBER:

NOTICE: This drawing is the property of THE NEW YORK BLOWERCO. and is loaned subject to the condition that it shall not be

reproduced, copied, loaned or submitted to outside parties with out
our consent.

REV.

TOL:

DWG.SIZE

PART NUMBER
MAT'L:

GENERAL NOTES:1. UNLESS OTHERWISE SPECIFIED ALL DIMENSIONS ARE IN INCHES.2. ALL FORMS ARE UP, UNLESS OTHER WISE SPECIFIED.3. DIMENSIONS IN ( ) ARE FOR REFERENCE ONLY.

B
B
DRAWN BY:SEQUENCE:

PROJECT:DESCRIPTION:

ENGINEER:

A5604473

WITH ARCHES
1/31/2018

bogucki

DRAWN DATE:

Visit us on the Web: http://www.nyb.comPhone: (800) 208-7918 Email: [email protected] THE NEW YORK BLOWER COMPANY7660 Quincy StreetWillowbrook, IL 60527-5530 2875.7 lbmass
MASS:

A
NOTICE: This drawing is property of International Drying Corporation and is loaned subject to the condition that it shall not be reproduced, copied, loaned or submitt ed to outside parties without our consent.

International Drying Corporation
2510 IL Route 176, Suite G
Prairie Grove, IL 60014
Phone (800) 736-6412
[email protected]
WSP II-10
Stealth High Powered Quiet Drying System Specifications Total Sound
Center Band Sound Frequency 63 Hz 125Hz 250 Hz 500 Hz 1,000Hz 2,000 Hz 4,000 Hz 8,000 Hz 60 Hz Results Final Sound Pressure Level 55.3 60.4 71.9 80.3 78.5 76.7 72.5 65.4 84.2 dBA at Q=1, 5 feet Final Sound Pressure Level 49.3 54.4 65.9 74.3 72.5 70.7 66.5 59.4 78.2 dBA at Q=1, 10 feet Final Sound Pressure Level 45.8 50.9 62.4 70.8 69 67.2 63 55.9 74.7 dBA at Q=1, 15 feet Final Sound Pressure Level 43.3 48.4 59.9 68.3 66.5 64.7 60.5 53.4 72.2 dBA at Q=1, 20 feet Final Sound Pressure Level 41.3 46.4 57.9 66.3 64.5 62.7 58.5 51.4 70.2 dBA at Q=1, 25 feet Final Sound Pressure Level 39.8 44.9 56.4 64.8 63 61.2 57 49.9 68.7 dBA at Q=1, 30 feet Final Sound Pressure Level 38.4 43.5 55 63.4 61.6 59.8 55.6 48.5 67.3 dBA at Q=1, 35 feet Final Sound Pressure Level 37.3 42.4 53.9 62.3 60.5 58.7 54.5 47.4 66.2 dBA at Q=1, 40 feet Final Sound Pressure Level 36.2 41.3 52.8 61.2 59.4 57.6 53.4 46.3 65.1 dBA at Q=1, 45 feet Final Sound Pressure Level 35.3 40.4 51.9 60.3 58.5 56.7 52.5 45.4 64.2 dBA at Q=1, 50 feet Final Sound Pressure Level 34.5 39.6 51.1 59.5 57.7 55.9 51.7 44.6 63.4 dBA at Q=1, 55 feet Sound pressure values are
approximated from AMCA 300
Reverberant sound room total
sound power values
* all information provided
through the new york blower
company via tests performed
in their La Port IN sound lab,
January 15th 2018
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SOUND LEVEL METER READINGS

MODEL:  FT‐DD‐T340HP4 (40hp VACSTAR TURBINE VACUUM PRODUCER)

READING ONE:  43 DB‐A, 3 FEET FROM TURBINE @ 45° ANGLE
AND NO BACKGROUND NOISE OR OUTSIDE INTERFERENCE.

READING TWO:  36 DB‐A, 10 FEET FROM TURBINE @ 45° ANGLE AND NO BACKGROUND NOISE OR OUTSIDE INTERFERENCE.

READING THREE: 24 DB‐A, 20 FEET FROM TURBINE @ 45° ANGLE AND NO BACKGROUND NOISE OR OUTSIDE INTERFERENCE.

READING FOUR:  12 DB‐A, 30 FEET FROM TURBINE @ 45° ANGLE AND NO BACKGROUND NOISE OR OUTSIDE INTERFERENCE.

NOTE: THESE READINGS WERE TAKEN OUTSIDE OF 8’x10’x8’ CINDER BLOCK ENCLOSURE WITH CONCRETE SLAB AND WOOD JOIST ROOF.

SOUND LEVEL METER USED:

SIMPSON MODEL #40003 – MSHA APPROVED.

MEETS OSHA & WALSH‐HEALY REQUIREMENTS FOR NOISE CONTROL.

CONFORMS TO ANSI S1.4‐1983, IEC 651 SPECS FOR METER TYPE.

Vacutech
1350 Hi-Tech Drive, Sheridan WY, 82801
PHONE: (800) 917-9444 FAX: (303) 675-1988
EMAIL: info@vacutechllc
WEB SITE: vacutechllc.com
Project: Sound Library
Job Number: 0000-2020-02
Site Address/Locaon: 1555 W Warner Rd, Gilbert, AZ 85233 Date: 04/05/2020
Field Tech/Engineer: Robert Pearson
Source/System: Vacutec System Averaged

General Locaon: Measured @ 1.5'
Sound Meter: NTi XL2 SN: A2A-05967-E0
Sengs: A-weighted, slow, 1-sec, 10-sec duraon
Meteorological Cond.: 80 degrees, 2 mph wind
Table 1: Summary Measurement Data
Figure 1: Vacutec System Averaged
Acousc Spectrum - Vacutec System Averaged
Site Observaons:

Clear sky, measurements were performed within 1.5 of source. Measurements were performed while the vacuum was posioned at three (3) different posions. Holstered, upholstered and inside a car. This data is ulized for acousc modeling purposes and represents an average sound level at a vacuum staon.

Leq Lmin Lmax

71.2 71.2 71.2
Ln 2 Ln 8 Ln 25 Ln 50 Ln 90 Ln 99

0.0 0.0 0.0 0.0 0.0 0.0
Source/System Overall Source Overall
dB(A)
3rd Octave Band Data (dBA)
20 25 31.5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1k 12.5k1.6k 2k 2.5k 3.15k 4k 5k 6.3k 8k 10k 12.5k16k 20k Vacutec System Averaged Car Wash Vacuu 71.2 11.0 21.0 25.0 32.0 36.0 39.0 43.0 45.0 47.0 48.0 52.0 53.0 51.0 51.0 55.0 53.0 55.0 55.0 56.0 58.0 59.0 59.0 61.0 62.0 59.0 56.0 55.0 53.0 51.0 47.0 40.0 20 40 63 125 250 500 1k 2k 4k 8k 16k
Freq (Hz)
0 20
40 60
80 Sound Pressure Level, dBA
f I L I
I
www.mdacoustics.com
AZ Office
4960 S. Gilbert Rd, Ste 1-461
Chandler, AZ 85249
p. (602) 774-1950
CA Office
1197 Los Angeles Ave, Ste C-256
Simi Valley, CA 93065
p. (805) 426-4477
Project: SuperStar Car Wash Chula Vista Site Observations:

Site Location: 1555 W Warner Rd, Gilbert, AZ 85233
Date: 4/5/2018
Field Tech/Engineer: Robert Pearson
Source/System: Vacutec System
Location: Vac Bay 1
Sound Meter: NTi XL2 SN: A2A-05967-E0
Settings: A-weighted, slow, 1-sec, 10-sec duration
Meteorological Cond.: 80 degrees F, 2 mph wind
20 25 31.5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1.25K 1.6K 2K 2.5K 3.15K 4K 5K 6.3K 8K 10K 12.5K 16K 20K Vacutech (Holstered) Vacuum 63.3 9 17 22 29 31 35 40 41 44 43 46 48 47 49 51 51 51 52 53 52 52 50 52 53 50 47 47 48 45 39 30 Vacutech (Un Holstered) Vacuum 80.7 6 19 22 28 34 37 40 43 47 46 48 48 48 49 54 55 58 58 62 65 68 70 74 75 73 69 67 65 63 60 55 Vacutech (Inside Car) Vacuum 69.6 16 28 31 38 42 45 49 51 52 55 60 61 57 55 59 53 55 56 54 57 57 57 57 57 55 54 51 48 46 42 36 Arth. Average Level* Vacuum 71.2 11 21 25 32 36 39 43 45 47 48 52 53 51 51 55 53 55 55 56 58 59 59 61 62 59 56 55 53 51 47 40 * Refers to the arthitmetic average of all measurements. This measurement represents an average of the multiple vacuum positions.

Clear sky, measurements were performed within 1.5ft of source. Measurements were performed while the vacuum was positiioned at threee (3) different positions. Holstered, unholstered and inside a car. This data is utilized for acoustic modeling purposes and represents an average sound level at a vacuum station.

Table 1: Summary Measurement Data
Source System Overall
dB(A)
3rd Octave Band Data (dBA)
Figure 1: Holstered Figure 2: Un Holstered Figure 3: Inside Car Figure 1: Example Measurement Position
0 10
20 30
40 50
60 70
80 20
25 31.5
40 50
63 80
100
125
160
200
250
315
400
500
630
800
1K

1.25K

1.6K
2K

2.5K

3.15K
4K
5K

6.3K
8K
10K

12.5K
16K
20K
dB
Freq (Hz)

1.5ft from Nozzle
Vacutech Un holstered Vacutech (Holstered) Vacutech (Inside Car) Vacutech sound levels
I I I I I I I I I I I I I I I 11 11 I I I I I I I I I I I I I I I ■ ■ ■

Appendix C
SoundPlan Input/Output

SurfThru Fresno
3rd octave spectra of the sources in dB(A)
-
Situation 1
-
IDC 120HP Pred
-
SP
4 Name
l or A
m,m²
Li
dB(A)
R'w
dB
L'w
dB(A)
Lw
dB(A)
25Hz
dB(A)

31.5Hz
dB(A)
40Hz
dB(A)
50Hz
dB(A)
63Hz
dB(A)
80Hz
dB(A)
100Hz
dB(A)
125Hz
dB(A)
160Hz
dB(A)
200Hz
dB(A)
250Hz
dB(A)
315Hz
dB(A)
400Hz
dB(A)
500Hz
dB(A)
630Hz
dB(A)
800Hz
dB(A)
1kHz
dB(A)

1.25kHz
dB(A)

1.6kHz
dB(A)
2kHz
dB(A)

2.5kHz
dB(A)

3.15kHz
dB(A)
4kHz
dB(A)
5kHz
dB(A)

6.3kHz
dB(A)
8kHz
dB(A)
10kHz
dB(A)
Vacuum 1

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 2

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 3

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 4

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 5

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 6

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 7

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 8

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 9

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 10

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 11

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 12

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 13

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 14

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 15

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Vacuum 16

80.6 80.6

28.1 31.7

38.4 42

45.6 49.2

51.7 52.8

55.0 59.9

61.2 57.5

56.1 60.3

57.7 59.8

60.3 62.7

65.4 68.1

70.1 73.6

74.4 72.2

68.4 66.2

64.6 Roof 01
174.00

88.0 57.0

39.2 61.6

54.1 48.2

59.2 54.2

41.8 35.5

25.9 14.3
Facade 01
101.50

88.4 57.0

39.6 59.6

52.1 46.2

57.3 52.2

39.8 33.6

23.9 12.1
Facade 02

10.05 89.0

57.0 39.9

50.0 42.4

36.5 47.6

42.6 30.6

24.8 15.3

4.7 Transmissive
area 01

10.95 88.8

0.0 88.8

99.2 72.6

80.8 93.8

94.8 91.9

90.2 83.8

71.2 Facade 03
101.50

88.4 57.0

39.6 59.6

52.1 46.2

57.3 52.2

39.8 33.6

23.9 12.1
Facade 04

10.05 87.9

57.0 39.1

49.1 41.6

35.8 46.8

41.7 29.3

23.1 13.2

0.4 Transmissive
area 01

10.95 87.5

0.0 87.5

97.9 71.5

79.6 92.7

93.7 90.4

88.2 81.3

66.6 SoundPLAN 8.2
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 1 SurfThru Fresno
Contribution level
-
Situation 1
-
IDC 120HP Pred
-
SP
9 Source
Source type
Leq,d
dB(A)
A
dB
Receiver 1 Fl G Lr,lim dB(A) Leq,d 60.8 dB(A) Sigma(Leq,d) 0.0 dB(A) Vacuum 1
Point

41.8 0.0
Vacuum 2
Point

42.3 0.0
Vacuum 3
Point

43.0 0.0
Vacuum 4
Point

43.9 0.0
Vacuum 5
Point

45.0 0.0
Vacuum 6
Point

45.7 0.0
Vacuum 7
Point

46.1 0.0
Vacuum 8
Point

47.2 0.0
Vacuum 9
Point

48.1 0.0
Vacuum 10
Point

40.7 0.0
Vacuum 11
Point

41.6 0.0
Vacuum 12
Point

42.1 0.0
Vacuum 13
Point

42.2 0.0
Vacuum 14
Point

41.7 0.0
Vacuum 15
Point

42.3 0.0
Vacuum 16
Point

41.2 0.0
Roof 01
Area

8.4 0.0
Facade 01
Area

7.1 0.0
Facade 02
Area

9.8 0.0
Transmissive area 01
Area

59.0 0.0
Facade 03
Area

7.8 0.0
Facade 04
Area
-4.8

0.0 Transmissive area 01
Area

38.2 0.0
Receiver 2 Fl G Lr,lim dB(A) Leq,d 60.4 dB(A) Sigma(Leq,d) 0.0 dB(A) Vacuum 1
Point

35.4 0.0
Vacuum 2
Point

35.8 0.0
Vacuum 3
Point

35.6 0.0
Vacuum 4
Point

36.1 0.0
Vacuum 5
Point

37.0 0.0
Vacuum 6
Point

36.7 0.0
Vacuum 7
Point

37.5 0.0
Vacuum 8
Point

38.1 0.0
Vacuum 9
Point

38.9 0.0
Vacuum 10
Point

31.5 0.0
Vacuum 11
Point

35.5 0.0
Vacuum 12
Point

35.3 0.0
Vacuum 13
Point

36.1 0.0
Vacuum 14
Point

37.0 0.0
Vacuum 15
Point

37.9 0.0
Vacuum 16
Point

38.8 0.0
Roof 01
Area

13.4 0.0
Facade 01
Area

13.1 0.0
Facade 02
Area

11.2 0.0
SoundPLAN 8.2
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 1 SurfThru Fresno
Contribution level
-
Situation 1
-
IDC 120HP Pred
-
SP
9 Source
Source type
Leq,d
dB(A)
A
dB
Transmissive area 01
Area

60.0 0.0
Facade 03
Area

14.3 0.0
Facade 04
Area
-3.3

0.0 Transmissive area 01
Area

36.5 0.0
Receiver 3 Fl G Lr,lim dB(A) Leq,d 52.8 dB(A) Sigma(Leq,d) 0.0 dB(A) Vacuum 1
Point

21.0 0.0
Vacuum 2
Point

21.0 0.0
Vacuum 3
Point

22.4 0.0
Vacuum 4
Point

25.4 0.0
Vacuum 5
Point

26.6 0.0
Vacuum 6
Point

29.6 0.0
Vacuum 7
Point

30.2 0.0
Vacuum 8
Point

29.4 0.0
Vacuum 9
Point

29.2 0.0
Vacuum 10
Point

16.0 0.0
Vacuum 11
Point

21.4 0.0
Vacuum 12
Point

25.1 0.0
Vacuum 13
Point

26.1 0.0
Vacuum 14
Point

25.8 0.0
Vacuum 15
Point

25.9 0.0
Vacuum 16
Point

31.5 0.0
Roof 01
Area

11.1 0.0
Facade 01
Area

12.1 0.0
Facade 02
Area

2.9 0.0
Transmissive area 01
Area

52.4 0.0
Facade 03
Area

3.2 0.0
Facade 04
Area
-3.4

0.0 Transmissive area 01
Area

38.6 0.0
SoundPLAN 8.2
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 2 SurfThru Fresno
Contribution spectra
-
Situation 1
-
IDC 120HP Pred
-
SP
Source
Time
slice
Sum
dB(A)
63Hz
dB(A)
125Hz
dB(A)
250Hz
dB(A)
500Hz
dB(A)
1kHz
dB(A)
2kHz
dB(A)
4kHz
dB(A)
8kHz
dB(A)
16kHz
dB(A)
Receiver 1 Fl G Lr,lim dB(A) Leq,d 60.8 dB(A) Sigma(Leq,d) 0.0 dB(A) Facade 01
Leq,d

7.1 5.4
-5.7

0.5 -7.1
-15.0
-22.1
Facade 02
Leq,d

9.8 5.8
-2.4

5.2 2.1
-7.7
-13.3
-23.7
Facade 03
Leq,d

7.8 5.8
-4.7

1.7 -4.7
-16.2
-22.5
Facade 04
Leq,d
-4.8
-6.5
-18.2
-11.0
-19.4
Roof 01
Leq,d

8.4 5.6
-5.1

3.7 -2.2
-15.1
-20.4
Transmissive area 01
Leq,d

59.0 36.0

41.9 51.0

53.7 53.4

52.1 44.7

28.6 Transmissive area 01
Leq,d

38.2 23.0

25.4 34.0

31.5 27.0

32.0 20.5
-3.7
Vacuum 1
Leq,d

41.8 12.0

18.0 22.3

21.1 27.6

35.5 39.8

29.5 14.3
Vacuum 2
Leq,d

42.3 12.9

18.8 23.2

21.8 28.0

35.9 40.3

30.4 15.9
Vacuum 3
Leq,d

43.0 13.9

19.8 24.4

22.8 28.7

36.5 41.0

31.5 17.7
Vacuum 4
Leq,d

43.9 14.9

20.8 25.5

23.9 29.6

37.3 41.9

32.6 19.4
Vacuum 5
Leq,d

45.0 16.1

22.4 27.0

25.3 30.6

38.4 43.0

34.0 21.6
Vacuum 6
Leq,d

45.7 17.3

23.5 28.1

26.3 31.3

38.9 43.7

35.0 23.3
Vacuum 7
Leq,d

46.1 18.6

24.1 28.9

27.0 31.6

39.2 44.0

35.7 24.9
Vacuum 8
Leq,d

47.2 19.6

25.2 30.2

28.3 32.7

40.2 45.1

37.0 26.5
Vacuum 9
Leq,d

48.1 20.4

26.0 31.2

29.3 33.5

41.0 46.0

37.9 27.7
Vacuum 10
Leq,d

40.7 9.8

17.9 21.0

19.5 26.6

34.7 38.7

27.7 10.6
Vacuum 11
Leq,d

41.5 11.1

19.0 22.4

20.7 27.4

35.4 39.6

29.1 13.2
Vacuum 12
Leq,d

42.1 12.4

19.5 23.0

21.4 27.9

35.8 40.1

29.8 14.3
Vacuum 13
Leq,d

42.2 12.9

19.9 23.3

21.6 28.0

35.8 40.2

30.2 15.3
Vacuum 14
Leq,d

41.7 13.5

20.1 23.1

21.4 27.4

35.3 39.7

30.1 15.8
Vacuum 15
Leq,d

42.3 14.1

20.7 23.9

22.2 28.0

35.8 40.3

30.8 17.0
Vacuum 16
Leq,d

41.2 13.9

19.3 22.8

21.2 26.8

34.6 39.2

29.9 16.7
Receiver 2 Fl G Lr,lim dB(A) Leq,d 60.4 dB(A) Sigma(Leq,d) 0.0 dB(A) Facade 01
Leq,d

13.1 10.4

1.2 8.0

2.7 -8.0
-15.4
-28.1
Facade 02
Leq,d

11.2 7.1
-1.1

6.9 3.1
-7.0
-12.6
-22.8
Facade 03
Leq,d

14.3 11.0

2.2 9.6

5.1 -5.3
-11.4
-22.5
Facade 04
Leq,d
-3.3
-4.8
-16.4
-10.3
-17.4
Roof 01
Leq,d

13.4 8.5
-0.5

10.2 5.0
-6.6
-13.4
-25.1
Transmissive area 01
Leq,d

60.0 37.4

43.2 52.7

54.7 54.2

52.9 45.7

30.4 Transmissive area 01
Leq,d

36.5 23.1

24.7 31.9

30.6 26.6

29.2 17.2
-7.1
Vacuum 1
Leq,d

35.3 7.1

12.3 13.6

13.6 21.5

29.7 33.3

21.1 1.1
Vacuum 2
Leq,d

35.8 7.6

12.8 14.3

14.1 21.9

30.1 33.8

21.8 2.4
Vacuum 3
Leq,d

35.5 8.1

13.4 15.0

14.2 21.5

29.7 33.6

22.2 3.7
Vacuum 4
Leq,d

36.1 8.6

13.9 15.8

14.9 22.0

30.1 34.1

22.9 5.1
Vacuum 5
Leq,d

37.0 9.3

14.6 16.7

15.7 22.7

31.1 35.0

24.0 6.8
Vacuum 6
Leq,d

36.6 9.9

15.2 17.4

15.6 22.3

30.5 34.7

24.2 8.0
Vacuum 7
Leq,d

37.5 10.5

15.9 18.3

16.5 23.1

31.3 35.5

25.1 9.5
Vacuum 8
Leq,d

38.0 11.1

16.5 19.2

17.3 23.7

31.7 36.0

26.0 10.9
Vacuum 9
Leq,d

38.8 11.9

17.3 20.2

18.4 24.4

32.4 36.8

27.1 12.6
Vacuum 10
Leq,d

31.4 4.3

8.9 11.0

10.2 18.2

26.1 29.3

16.0 -6.5
Vacuum 11
Leq,d

35.4 8.2

13.5 15.1

13.9 21.6

29.6 33.4

22.0 3.8
Vacuum 12
Leq,d

35.3 8.8

14.1 15.9

14.1 21.3

29.2 33.3

22.5 5.3
Vacuum 13
Leq,d

36.1 9.5

14.8 16.8

15.0 22.0

29.9 34.1

23.5 6.9
Vacuum 14
Leq,d

36.9 10.1

15.5 17.8

15.9 22.7

30.8 34.9

24.5 8.6
Vacuum 15
Leq,d

37.9 11.0

16.4 19.0

17.2 23.6

31.6 35.9

25.8 10.6
Vacuum 16
Leq,d

38.8 11.8

17.2 20.1

18.2 24.5

32.5 36.8

27.0 12.4
Receiver 3 Fl G Lr,lim dB(A) Leq,d 52.8 dB(A) Sigma(Leq,d) 0.0 dB(A) Facade 01
Leq,d

12.1 8.6

0.1 7.0

4.3 -4.6
-10.9
-22.7
Facade 02
Leq,d

2.9 -0.7
-9.5
-2.1
-5.0
-13.6
-19.2
Facade 03
Leq,d

3.2 1.0
-10.0
-2.0
-10.5
-24.7
Facade 04
Leq,d
-3.4
-6.4
-16.0
-7.9
-14.8
-27.5
SoundPLAN 8.2
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 1 SurfThru Fresno
Contribution spectra
-
Situation 1
-
IDC 120HP Pred
-
SP
Source
Time
slice
Sum
dB(A)
63Hz
dB(A)
125Hz
dB(A)
250Hz
dB(A)
500Hz
dB(A)
1kHz
dB(A)
2kHz
dB(A)
4kHz
dB(A)
8kHz
dB(A)
16kHz
dB(A)
Roof 01
Leq,d

11.1 4.8
-4.0

8.6 3.4
-8.3
-14.8
-26.8
Transmissive area 01
Leq,d

52.4 29.6

35.0 43.6

46.4 47.5

46.3 37.7

17.6 Transmissive area 01
Leq,d

38.6 22.4

26.5 35.0

33.3 29.3

25.1 14.2
-10.2
Vacuum 1
Leq,d

20.9 -3.3
-1.0

2.5 0.9

8.7 16.8

18.1 -0.9
Vacuum 2
Leq,d

21.0 -3.1
-0.8

2.6 1.0

8.7 16.8

18.1 -0.9
Vacuum 3
Leq,d

22.3 -2.6
-0.3

2.8 1.8

10.3 18.2

19.5 0.3
Vacuum 4
Leq,d

25.4 -1.9

0.6 3.2

3.7 13.1

21.0 22.8

5.1 -30.2
Vacuum 5
Leq,d

26.5 -0.6

2.5 4.2

4.7 14.3

22.2 23.9

6.2 -29.2
Vacuum 6
Leq,d

29.6 3.0

7.4 7.5

7.6 16.9

24.8 27.3

11.8 -16.5
Vacuum 7
Leq,d

30.1 3.0

7.4 8.2

8.6 17.3

25.2 27.9

12.6 -15.8
Vacuum 8
Leq,d

29.4 3.1

7.5 8.3

7.8 16.4

24.3 27.1

12.2 -15.8
Vacuum 9
Leq,d

29.2 3.1

7.6 8.3

7.3 15.8

23.8 27.1

13.9 -13.6
Vacuum 10
Leq,d

16.0 -5.3
-3.6
-1.3
-4.0

3.4 12.1

12.7 -7.3
Vacuum 11
Leq,d

21.3 -5.6
-3.7
-1.1
-2.5

9.1 17.2

18.6 0.3
-35.6
Vacuum 12
Leq,d

25.1 -5.4
-3.4
-0.9
-1.3

12.9 20.8

22.5 4.5
-32.0
Vacuum 13
Leq,d

26.0 -5.0
-3.0
-0.7

1.4 13.9

21.7 23.4

5.3 -31.5
Vacuum 14
Leq,d

25.8 -4.3
-2.2
-0.4

1.5 13.7

21.4 23.2

5.3 -31.2
Vacuum 15
Leq,d

25.9 -2.1

0.6 1.2

2.0 13.8

21.5 23.3

5.5 -30.5
Vacuum 16
Leq,d

31.4 3.9

8.5 9.5

9.1 18.5

26.4 29.2

14.5 -11.7
SoundPLAN 8.2
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 2