HomeMy WebLinkAbout2001-02-01 Decible Study Follow Up - Enclosed Vacuum Pony Express Auto Wash
Oak Park Heights
Decible Study
(Follow-up)
Enclosed Vacuum
2/1/01
AmmisMOIMMININIMINIIMMOMOOMONNI
JANUARY 30, 2001
MR. BILL COSTA
PONY EXPRESS AUTO WASH
2490 STAGECOACH TRAIL NORTH
STILLWATER, MN 55082
BILL,
SOUND LEVEL METER READINGS:
MODEL: PFT2254TS- 25 H,P. — TURBINE VACUUM PRODUCER
READING ONE: 41 DBA 3 FEET FROM CORNER OF BUILDING AT 45-°ANGLE.
READING TWO: 34 DBA 5 FEET FROM CORNER OF BUILDING AT 45-*ANGLE
READING THREE: 20 DBA 10 FEET FROM. CORNER OF BUILDING AT 45-*ANGLE
READING FOUR: 9 DBA 25 FEET FROM CORNER OF BUILDING AT 45-"ANGLE
READINGS WERE TAKEN IN AN 8"CONCRETE BLOCK EQUIPMENT ROOM WITH
STEEL DOOR AND A LIGHT WEIGHT CONCRE It ROOF AND A CONCRETE SLAB
FLOOR. , MEASURING 20'X 12'X 10'.
SOUND LEVEL METER USED:
SIMPSON— MODEL # 40003— MSHA APPROVED.
METER OSHA AND WALSH-HEALY REQUIREMENTS. FOR NOISE CONTROL.
CONFORMS TO ANSI 51.4-1983, IEC 651 SPECIFICATIONS FOR METER TYPE
TOM TUCKER JR.
MANUFACTURERS OF STATIONARY AND MOBILE VACUUM EQUIPMENT
12039 WOODSIDE AVENUE, SUITE D, LAKESIDE, CA 92040
leAwordnaetersound levelshvo3001PHONE: (911.).:390v -9701 FAX_ (619)390-9710
EMAACVtCHLiQFAVyAVE.NE�
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+ •-;:•.al * " *"""" 10'UTILITY&DRAINAGE EASEMEN'1
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' ......
i s > .,., " ALONG HYW.6 R 60 PROPERTY LINE.
,_ � l.t...d:. i,.-....y.- ..,-..-L..L�.c.�.+ t....•..c. ;•-�S �l i 11........ •� , s
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f s s, sl =i°i is ' 3; tl=t 11 . is Li}t t;� I SEE))URVETBYME1ROLAND SURVEYING
I >:=t k1.‘' !; ;= y t 3 = _ : t f f1 ikw,ot ....)...,,.,,„:„, DATED;DECEMBER 14,2000
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T '� - • ♦♦ BUILDING BET BACK
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I =, .:,.>< 2: 1S BITUMINOUS I 1 i, :. :. , :: : . 1 .< .f f >14 ,.=s'i ��\ // V_, /,rte.
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1 = >t�" ,.=. . t �`: 2114.25' ...... .r.1L^a w"a"`"'Y"
x '. • 20 , SIDE PROPERTY UNE
COMMENT ON REVISED SITE DATA 1
1r r
sf I PULDING AND BARKING LOT 25 ' /9 dBA ADDITIONAL 1,400 O.F.OF BIfUMN000 SURFACES MAY OE
= i..) > °: =a; :•i CURS LINE IET BACK
ti 1 \` REDUCED Al'THE NORM BIDE BY DECREASING THE DRIVE
WIDTH BY 4'-0•AND ON 1HE[AIT BIDE VECHE A01NG THE
•
t e s DRNF WIDTH SY 10.0'.
22W NSF EASEMENT f s' _ ,# i. .. V.:*A '
BEE PURVEY SY : _ ,t i �_
METRO LAND IUKVEYNG 1 W %3-::::• /
DATID:OECEMBER�/.2000 T ; $,..11.....t..._ 9' ! 1{ �ti >i _..--/\�--- //
:'i:•' • ••,•,.. , __________,"N'
! s< s--' > 36
.:,1f:::::J10,
: 5 ` 135 ' / not audible
_ PREVIOUS SITE REV 1 5 E D SITE DATA
4 I.AND AREA 72,920 S.F.( 1.7 acres) • L AND AREA 72,920 S.F. ( 1.7 acre.) A. Ihown - not Including pond
1
• ,' _: # '::::'. i:"isi BUILDING 1-001 PRINT 10,186 5.F. BUILDING FOOT PRINT 9.882 S.F.
1 BITUMINOUS PAVING 23,570 S.F. BITUMINOUS PAVING 23,638 5.F.
t
s
• _> t:• <'t =< i CONCRETE WALKS 57 5.F.
[[ _ CONCRETE WALKS 680 S.P.
1 :) • ' LANDSCAPED AREA 38,484 5.F.
Potential structure LANDSCAPED AREA 39,340 5.F.
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(\/19(11, ' .,•:....-I' ' F3=z.,..! :'.....1
3' `I 't '_ '1 LOADING AREA 8'120' LOADING AREA 8'120'
4 '" < i :? ! .-f f' l ;�1 •'t 19 STANDARD STALLS + i HC=TOT. 20 STALLS
I• ' r 1 PARKING 19 STANDARD STALLS + 1 HC=TOT.20 STALLS PARKING
0' ( T"■2O' T ` _~ 'I ; ' ::is 1 3 *:. 1 =.,�
�a ea ?� ; _ REVISED SITE PLAN SHOWS A NET REDUCTION OF 860 5.F OF IMPERVIOUS SURFACES
�'� �'� �.' �' :�.�1s i. _y t .._i EN see comments for additional reduction if needed to reduce impervious surfaces
50.15' 24'WIDE CURS CUT
NEAL A%IitiliE ~- 10 NEAL AVENUE •
RAV190N1 rnAWo4O1I9! IMO!.Port,u,lloII.v..rt...4 CONSTRUCTION OWNER— PONY EXPRESS SITE PLAN
D... s... D.r Ow.r es1t■.P..ee.,..■r sew••••••44414.1.,••••••44414.1.,••••••44414.1.,W
— —_ MuIon• ,,,1,"..4.,.u..". ARCHITECT MANAGEMENT DEVELOPER AUTO WASH
—— ,r low,t,te Om el stae.ea.
- CUAIIIQi ARC VI TECTA.ENC. NEC rowel Ceotrsclets PONY T7VAPS5 AUTO WA91 OtP.es►1.AM. telw.ns DATA 1/30/2001 7
—— Goatee!Pwaa Comma horses Ceslai Versos A-1
-- mom.....ow lib este sr. )vis C1'1.111611(112)-177 15! Din Towle (651)-222-1117 WI1Ii A Ceeta Min-275-1112
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NOTES DECIBEL SCALE SUBJECTIVE FACTORS: EFFECT-OF
'..rued is produced oy a vibrating object or surface. In The decibel(del scale Is a logarithmic scale based on 10 CHANGE IN SOUND PRESSURE LEVEL -.
c:aer for sound to be transmitted or propagated, it re- ,es the logarithm of a ratio of sound pressures. The 'RANGE IN
quires an elastic medium.The most common medium for ` —cibel levels of two noise sources can not be addedOUND
transmission is the air. Such sound is called "air-borne directly;instead use this simplified method: �RESSURE
•
Isound."However,sound can also be easily transmitted difference between two LEVEL 1+ OR CHANGE IN
through common building materials and components —1 1001 APPARENT LOUDNESS
I such as steel,concrete,wood and metal framing,piping, sound levels,in dB 0-1 2-3 4-9 >10
I and gypsum wallboard. This type of sound is called add to the higher level 3 2 1 0 3 Barely perceptible
"structure-borne sound." __ 5 Clearly noticeable
For example: 90 dB 20 dB = 90 d8 10 Dramatic:Twice as loud(OR ';'
A-weighted decibel ldB1A11 is a standard single-number 60 dB + 60 dB = 63 dB
rating representing the overall sound energy of a given 15 Dramatic:Three times as loud �"'"
source.The A-weighting network in a sound level meter OCTAVE BAND (OR'AI
filters sound in a manner similar to the human ear by 20 Dramatic:Four times as loud
downgrading low frequencies. An octave band covers the range from one frequency (OR'/.)
IHzI to twice that frequency, f to 2f.
FREQUENCY OF' COMMON SOUNDS
TYPE OF' SOUND FREQUENCY OR PITCH (HZ)
LOW FREQUENC, MID-FREQUENCY '-1IGH FREQUENCY
1 CCTAVE at
1• A
16 31.5 63 125 250 500 1000 2000 4000 BCCC 16C00 31500
I LOW PEDAL STOP ■
1 ON ORGAN '
I _
I�fGHEST NOTEII
ON PIANO
RANGE OF HUMAN
SPEECH
I AREA OF MOST
1 SPEECH INTELLIGIBILITY
BALLAST HUM FROM
FLUORESCENTS ANO ' .
HARMON ICS • ■ II
DESKTOP COMPUTERS . I
WITH DISK DRIVE
' OFFICE EQUIPMENTimmillimmLimm
(PRINTERS, TYPEWRITERS, i
TE_EPHONESIPiiiimilimmillMal.11111 .....m....
'RUCKS, BUSES
6.UMAN HEARING
, - 1-:Z.___ I I I - I I I I !
1RCCTAVE-A FREQUENCY RATIO OF 2:1
RELATIONSHIP OF SOUND LEVEL AND SUBJECTIVE LOUDNESS
SOUND LEVEL ENVIRONMENT
(ABA) I SUBJECTIVE EVALUATIONS OUTDOOR I INDOOR COMMENTS
140 I Deafening Near jet aircraft and I
artillery fire
130 I Threshold of pain
120Threshold of feeling Elevated train Hard rock band g Ili'
O Y .0 G
110 Jet flyover at 1000 ft Inside propeller plane K- m CU
— m of L O.
I
Power mower, i ; 0a
100 Very loud motorcycle at 25 ft,auto o xi m E
horn at 10 ft c o' a.
Propeller plane flyover at Full symphony or band, C o a
90 1000 ft,noisy urban food blender,noisy u 2 °c
street factory _
Diesel truck at 40 mph at Inside auto at high speed, -
80 Moderately loud 50 ft garbage disposal,
dishwasher
Face-to-face
conversation,vacuum
70 Loud cleaner,electric
typewriter
Air conditioning General office _
60 Moderate condenser at 15 ft,near
t
freeway auto traffic [2i,
50 Quiet Large transformer at ¢ rn
100 ft ,
40 _ Birdcalls Private office,soft radio
• music in apartment
Quiet residential Bedroom,average
30 Very quiet
neighborhood residence without stereo
20 I l Rustling leaves I Qtllet theater, whisper
10 I Just audible
0 Threshold of hearing I
Carl J.Rosenberg,AIA:Accentech Inc.:Cambridge,Massachusetts
I
ACOUSTICAL DESIGN