SUPERCEDED SOUND STUDY
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AMBIENT SOUND LEVEL STUDY
Bru's Room Sports Grill
1333 North Congress A venue
Boynton Beach, Florida
Prepared for
Mr. Robert Brudzinski
do
Charles Putman & Associates
4722 NW Boca Raton Boulevard
Boca Raton, Florida 33432
Contact: Ms. Toni Ash
Phone: (56] ) 994-6411
Prepared by
REP Associates. lne.
11825 NW 100lh Road
Medley. Florida 331 n
Contact: Teresa A. Thomas
Telephone: nOS) 279-5255
REP Project ~ umber 2396.01.02
October 1. 2006
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1. INTRODUCTION
The subject facility is the Bru's Room Sports Gri]l located at 13J3 North Congress Avenue.
Boyn'ton Beach, Florida (Site). The proposed project consists of a 775 square foot (sf) building
addition to the nonhwesl curner of the existing structure. The new addition ",ill be utilized for
storage purposes.
The musical entertainment room will be relocated to the intelior of the existing building.. See
Figure I. The musical entertainment could be a disc jockey (DJ), a single musician, or a full band
with string and percussion instruments. CUITently, the Bru's Room Boynton Reach location has
amplified music with ajukebox. The purpose of REP's study was to determine compliance with
the required analysis of conditional use application for bars, nightclubs, etc.
Multi-family dwellings are loco.ted to the northwest and to the northeast. A Holiday Inn is north
of lhe Site. A Wachovia Bank is south of the Site. A lake and the Boynton Beach Mall are
southwesl of the Site. The Site is in a busy, highly traveled area with multiple reslaurants and
bars.
REP evaluated sound levels allhrce receiving land uses as well as the perimeter of lhe Site.
. No, I - the multifami]y apartment complex located to the nonhwcst. approximately 650 feet
(rt) from the Si te' s property peri meter
. No.2 - a property with mixed use of commercial/retail and multifamily apartment complex
localed to lhe northeast. approximately ~OO ft from the Site's property perimeter
. No. ~ - the Holiday Inn property perimeter 250 feel ft north of lhe Site property line
Nonh Congress Avenue. a six (6) lane thoroughfare (approximately 88 ft wide), separates the Site
from Zone NO.2. Two buildings (approximately 15 ft tall), trees (approximately 30 ft tall) and
general hedge row landscape buffers (approximately 4.5 ft laIl) as well as a I ~O ft wide canal
separate the Site from Zone I and 3. Additionally, there are a Lotal of]8 potted palms
(approximately 6.5 ft tall) located along the south patio perimeter and a ]0 ft tall dumpster
enclosure southwest of the patio that offer a noise barrier to the south and southwest.
There are three doorways into the building. The main entrance is located on the east side of the
building; the patio entrance is on the south side, and the delivery entrance is on the west side. The
west delivery door is utilized during the day. Nighttime access is sniClly limited 10 emergency
use only. The delivery door is secured from the outside and controlled 1'1'0111 the inside with an
emergency push bar apparalus.
Vehicular access to the Site is from Nonh Congress A venue. Appendix A. Figures I. presents a
Site Plan with sample localions and surrounding land uses. Appendix B presents Photographic
DocumentaLion.
Ambienl SllunJ I.n'el Study
Ilru', RIIPn1 Spurts (in II. ~i\nh Cpnt!rL'ss /\ \'l' litll'lllOI1 IkaL'h. 1:\
REI' }'rO]el.l '\ill 2.i\)(dll.02
I JaIL' "I' Studv: September 2H. 2006
Page I
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2. APPLICABLE ORDINANCES
Sections 15-8 through 15-8.8 shall be cited by the shan title of "The,City of Boynton Beach
Noise Control Ordinance:'
(On/. No. 85-16 ~~ 2.3-19-85). On/. No. 85-16 ~]. 2. adopted Mar. ]9, 1985, prm'idedfor the
repeal (!/ * 15-8. /loise. llnd enacted i/l/iell th(n'e(~r /leiI' p/'Ol'isions re!ath'e to the .mme subject
matter, de.\'igl1{[/ed liS ~ 15-8 - ] 5-8.8 to read liS herein set Ollt. Formerly, ~ 15-8 was derived
Fom the ]958 Code. ~ 17.22.2, lInil Ord. No. 82-12, * adopted May If( 1982.
3. SOUND TERMINOLOGY AND CHARACTERISTICS
Sound level means the weighted sound pressure level obtained by the lIse of a metering
characteristic and weighting A. B, or C as specified for sound level meters. For the purposes of
this assessment. sOllnd levels are A-weighted. A-weighted sound level means the sound pressure
level in decibels (dB) as measured on a sound level meter using an A-weighting network and
designated as dBA. Decibels describe the amplitude of sound and are logarithmic rather than
linear. For example, 70 dB plus 70 dB equals 73 dB and not 140 dB.
The human ear does not "hear" all sounds identically and people respond more readily to sounds
in the middle to high frequencies. The A-weighted scale most close]y mimics the human ear's
response to sound. One decibel has been detennined to be the lowest sound level perceived by
the human ear in laboratory conditions.
Increases of less than three (3) - dBA are generally not noticed in a typical eommunity since 3
dBA is the smallest increment at which the human ear perceives any change. The sound level
meter/dosimeter was set at a 3dB exchange rate.
Without any barriers (buildings, vehiclcs, landscape, and walls) between the source and the
human ear. the sOllnd detected by the human ear is decreased by six (61 dB as the distance from
the source doubles.
Because sound levels fluctuate considerably, REP uses various statistical descriptors for
measuring. and calculating sound levels. The LI 0 is the sound level exceeded for more than ten
(10) percent of a measurement pcriod that shall not be less than 10 minutes. Pcak measurement
(L peak) is the pcak sound Ievcl dctcctl'd in any 1/16-second interval and is equivalent to an
impulsive sound ::Jnd the Lmax is the maximum sound level from any applicable sound source.
I )all' or StuJy: SepicllItlcr 2R. 2006
:\mbknl S(lllIld I.l'\'el SluJ~
BrlJ'~ Roum Spurt, (irill. '\jonl1 C(lIl~rl'S' i\vt.. BllyI1l0Il Beach.!'1
RU' l'rpic,:1 \ll. :; 1 lJ(>. 0 1.0:
Page 2
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4. METHODOLOGY
Section 15-8.8 establishes that no person shall operate or cause to he operated any source of
sound as enumerated in section 15-8.6 in such a manner as 10 create an exterior or interior sound
level of any orig.in which excecds the limits set forth for the receiving land use category in
question for more than ten (10) percent of any measurement period, That period shall not be less
than ten (10) minutes when measured at or within the boundaries of a property or within the
confines of a building within the receiving land use and as a result of a source of sound being
located on some other property. REP used accepted Industrial Hygiene practices and ASTM
Standard E1780-96 (measurement and evaluation of community noise) for this study.
Thc closest sensitive receiving land uses are to the nonh, northeast. and nOllhwesl. Figure I
included as Appendix A denotes sample locations at the Boynton Beach Site.
Noise dosimetric testing was conducted using a CEl Model 360 Noise Dosimeter, The CEl-360
Noise Dosimeter mcasures frequency weighted noise exposures and peak sound leve]s
simultaneously, LI 0 readings wcre collected over a 10-minute sample period. The instrument was
programmed with the following settings:
]'vleasurement range:
Frequency:
Time Weighting:
Amplitude Weighting:
50- ] 20 dB
A
Fast
:.
Peak Frequency Weighting:
Frequency Weighting:
LNo/cA:
lN7c B:
lNiJc-C:
Profile Interval:
Profile I:
Profj Ie 2:
Profile 3:
Linear
A
L10
LSO
L90
I minute
Lavg
Leq
ll11X
The calibration of each CEl-:~60 was verified prior to-and-following the test periods using a CEl
Model 282 Acoustic Calibrator. The CEl-282 acoustic calihrator is a single frequency calibrator
that generates) 1-+ dB SPL at 1000 Hz.
REP representatives, Teresa Thomas and Cristina Ahboud. collected data at the Site on
September 28, 2006 between the hours of 10:00 PM and I :00 AM, Simultaneolls LI 0 readings
were collected without the amplified music (background) and with the amplified music. REP
representatives also collected L I 0 readings at the sOllth and west property perimeters with the
sOllth patio duors and the west delivery door left open. A reading was collected at the sound
source at thc south patio and at the main entrance.
'\mnll~nl Sllllnt!1 .l'wl Swdy
Brll's RIl(llll Spmts lirilL North ('ongr<:" i\Vl' HllvlIlon Ikac!1.1'1
RI'I' 1'1\'1\'''[ :--ill. 2:N6 01.02
natl' t Ii StuLly: Scptcmo<.:r 2X. 2006
Page ~
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The sample locations were the property perimeter to the nonh. south. east. and west and at the
property perimeter closest to zone no. I to the northwest. zone no. 2 to the northeast. zone no. .3 to
the north, and east across Congress A venue. REP selected these locations based on the potential
impact of the existing bar/nightclub to the nearest receiving land uses or sensitive zones.
5. SOUl'1D EMITTING DEVICES
The data on the sound emitting devices/equipment to he utilized by the respective musical
entertainment is dependent on the entertainer(s). Installed currently at the Site are two types of
speakers - the J BL Control 28 and the JBL Control SB2. The JBL Control 28 otTers high power
pelfonnance band width and sensitivity in a compact. full range speaker with an 8" Iow-
frequency woofer and I" titanium-coated tweeter. The SB2 features' hybrid load bartle/band pass
design. This single speaker functions as the subwoofer section of left/right music systems.
Currently there are 8 speakers and 4 woofers located at the south patio. The speakers on the south
patio will broadcast music from the jukebox. The new musical entcnainment room specifies 6
speakers. The speakers at the south patio will not broadcast music from the inside musical
entertainment area.
6. CONSTRUCTION MATERIALS
The proposed addition will be used for storage, An existing food preparation Llrea will be
renovated for the musical entertainment. This area is constructed of block walls on all sides. The
room will be renovated and incorporate existing building materials which are acoustical ceiling
tiles. meta] deck. and roof insulation. The new ceiling height will be raised from 8 ft to]2 n. The
wall eonstruction consists of drywall on both sides of 6-inch metal studs. 2-inch airspace. R-19
insulation, and a 4.-inch brick veneer on the exterior of the building.
7. RESULTS
The results of the Ambient Sound Level Study are tabulated in Table A. The wealher was I,l.'arm.
clear, with little to no wind. The LlO background reading at the east property pcrimeter along
Congress Avenue was 77 dBA with no amplified music. All other LIO readings recorded at the
Site propcl1y lines did not exceed the LlD sound criteria of 65 dBA during the background
sample period or during the amplified music sample period.
The Ll 0 readings collected at the Patio adjacent to a speaker was 77dBA. The LJO readings
coIlec'ted simultaneously at the west LInd south property perimeter during. the time the west
delivery door and the patio doors \\'ere left open and with amplified music were below the LID
exterior sound level limit of 65 dBA (53 dBA and 61.5 dBA respectively). The L10 reading
during the routine use of the main cntrnncc (east side) was 73 dBA. \vith a noticeahle "t1anging"
of the door during closing.
/\mhiC:nI Sound l.nL'! Sludy
Ilru's Rlltll11SpOn, (irill. "Jllllh Cllf1~rl"-' :\w. Boynton Beach. 1'1.
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The LI 0 readings al Zone I (multi-fami I)' apartment s) and Zone 3 (Holiday Inn) during born
sample periods were below the maximum L lOaf 60 dBA fur the exterior of residemial structures.
The LI 0 reading at the Sensitive Zone 2 during the background (no amplified music. commuter
trnffic. and community noise) sampling event was 6].5 dBA. slightly above the maximum L 1 0 of
60 9BA. \vith commercial traffic in the vicinity of the residential property. The L10 reading at
Zone 2 with amplified music at the Site was below the maximum LIO of 60 dBA outside
residential Slmctures.
REP selected the Bm's Room Sports Grill location in Delray Beach to evaluate the sound
generated by a band in a setting similar to the Boynton Beach site, A band plays on Friday and
Saturday nights between the hours of IO:OOPl'Vl to 1:00 A1\1. The band had a vocalist and
percussion/string instruments.
TheL I 0 readings \....ere eollected on August 12, 2006. The pre-band L 10 reading recorded at the
Delray Beach location was 66 dBA at the source, Once the band began to play, lhe recorded
sound level increased (0 67 dBA at the source (adjacent to the open dOOr). The L 10 reading at the
property line 24-0 n away from the source decreased from 67 dBA to 58 dBA.
8. RECOMMENDATIONS
REP recommends limiting access to the entertainment area to the p::Hio doors on the south side of
the building. The sound hcnrd at the receiving land uses and outside the building from the live
entertainment can be controlled by not allowing doors to be left open, by using sound absorbing
doors. by limiting access to the exterior of the building from the entertainment area, and by
adjusting the main entrance door to eliminate the "banging" when closing.
REP recommends incorporating engineering controls into the entenainmcnt arca such as interior
acoustical ceiling panels for broad-band noise and other sound absorbing building materials
(carpel. dryv.:all, and wall coverings) and placemcnt of the band, speakers and amplifiers away
from walls to minimize the impact to ambient sound levels from the proposed land use.
Therefore a combination of these building finishes and other sound trealment products will
absorb the sound reducing the reflection of sound and subsequent "noise" heard outside the
building. Additionally. REP recommends placement of the band and speakers/ amplifiers at least
~ ft. away from walls.
.'\11I0il'nI SOUrJU I.eve! S!Udy
Ilrll'S Hoom Spon~ (irill. "JlInh Ctlllgrl's, .-'\le. BOVr1t,lrJ Ika"h. 1'1.
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9. CO~CLUSIONS
A band may increase the L1 0 at the entrances to the Site by I to 2 dBA. This I to 2 dBA increase
will not be noticeable 250 to 650 ft. away at the receiving residential land uses because as the
distance doubles between the noise source and the receiving land uses, the sound detected by the
human car will decrease by 6 dB.
There are numerolls trees and sorne stmctures between the Site and the canal that provide some
absorption or reflection. The sound should travel over the trees and stmctures, losing some of the
ground effect Ii'om the canal or lake. The data collected during the sampling event supports this
cone lusion.
Additionally, incorporating our recommendations for a combination of building tinishes into the
construction of the entertainment area will absorb the sound and reduce the reflection and
minimize subsequent "noise.' heard outside the Site. The nonnal opening of doors for people to
enter and leave the establishment during these hours will not create sound disturbances or
unnecessary noise. The Site operations should not have an adverse effect on humans nor will it
unnecessarily disturb enjoyment of life or property based on distance separating the Site from
residential sensitive zones. As such. Bm's Room Sports Grill will be in compliance with the
sound standards set forth in the City of Boynton Beach Noise Ordinance between the hours of
IO:OOPM to 7:00AM. As it appears the conditional use permit should be approved.
Prepared by,
REP Associates. Inc.
Approved For Release:
REP Associates. Inc.
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Teresa A. Tht)mas
Project Manager
Karen \1. Meyer, ClH
Technical Program Manager
AmbIent Sound Lc\'d Study
I3m's Room Sport;; Grill. North Congress A\'e 130Y111011 Ikach. rL
REI' I'rl1JccI No ~3()('.OI.O~
Dale ofSludy: September 2~. 2006
Page 6
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TABLEt
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TABLE 1
SlJMl\lARY OF LtO DATA
Sample Sample L-10
Description Measurement range 50-120
Number Location dBA
I-A Sitt: south property perimeter Background 56.5 dBA
]-8 Site south property perimeter During amplified music 61.0 dBA
2-A Zom: 2 - northeast of canal Background 61.5 uBA
2-B Zone 2 - northcast of canal During amplified music 53.5 dBA
3-A Site west property perimcter Background 50.5 d8A
3-B Site west property perimeter During amplified music 51.5dBA
4-A Sensitive Zone I - northwest Background Less than CES measurement
of canal range
4-B Sensitive Zone) - 1l0l1hwest During amplified music 54.0 dBA
of canal
5-A Site llorth propeny perimeter Background 51.5 dSA
5-B Site llOl1h propel1y perimeter During amplified music 505 dBA
6-A Zone 3 - north of canal Background 57.0 dBA
6-B Zone 3 - north of canal During amplified music 57.0 dBA
7-A Site east property perimetcr Background 77.0 dBA
at Congress A venue
7-B Site east property perimeter During amplified music 63.5 dBA
at Congress A venue
8-A Vacant)ot directly east Background 6lJ.0 dBA
across Congress A venue
8-13 Vacant lot directly east During amplified music 54.5 dBA
across Congress A venue
9-A South property perimeter During amplified music 61.5 dBA
..vith patio doors open
9-8 West propcrty perimeter During amplified music 53.0 dBA
with deIi\'ery door open
10-A In patio area at noise source During amplified music 77.0 dBA
10-B Outside main entrance - cast During amplified music 73.0 dBA
side of buildine
!\otes: 1) Zone 3. se\cralloud vchicles with music moycd in and out of the parkin~ 10l area during both
sample periods,
2) Zone 1 a tractor trailer pulled onlo thc Residential Property and a small motor boat passed on
lhe canal during the second sample period.
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APPENDIX A
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APPENDIX B
PHOTOGRAPHIC DOCUMENTATION
Bru's Room--east entrance
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Hotel located to the north- existing
trees and general landscaping
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structures, trees and general
landscaping
South patio area
Client: Bru's Room
Location: 1333 North Congress Ave
REP Ref: 2396.01.02
Date of pic.: 09/28/2006
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Southwest corner of the building
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. West property perimeter
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Bru's Room property from the northwest sensitive
zone
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Client: Bru's Room
Location: 1333 North Congress Ave
REP Ref: 2396.01.02
Date of pic.: 09/28/2006
ifi
View of the secured delivery located
on the west of the building.
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View of the kitchen area that will be
converted to the Entertainment area.
Client: 8ru's Room
Location: 1333 North Congress Ave
REP Ref: 2396.01.02
Date of pic.: 09/28/2006