ML18026A367

Const Noise Progress Rept, Sound Level Measurements Near Susquehanna Steam Electric Station Site Const 1980.

ML18026A367
Person / Time
Site:	Susquehanna
Issue date:	03/31/1981
From:	Barnes J, Wood E BOLT, BERANCK & NEWMAN, INC.
To:
Shared Package
ML18026A229	List: ML18026A228 ML18026A367
References
3024A-5, NUDOCS 8106120202
Download: ML18026A367 (54)

Text

Report No.3024A-5 SOUND LEVEL MEASUREMENTS NEAR SUSQUEHANNA STEAM ELECTRIC STATION SITE CONSTRUCTION 1980 Construction Noise Progress Report James D.Ba mes Eric W.Wood March 1981 Prepared by: Bolt Beranek and Newman Inc.50 Moulton Street Cambridge, MA 02138 Prepared for: Pennsylvania Power and Light Company Two North Ninth Street Allentown, PA 18101 py0618~~++

~lg~~~~~ii'I~lgl,~~I'I Report No.3024A-5 Bolt Beranek and Newman Inc.TABLE OF CONTENTS LIST OF-FIGURES.~.~..........................

~.page~~~~~~~1 V LIST OF TABLES'.............................................

i v SECTION 1.INTRODUCTION..................................

1 2.SOUND LEVEL MEASUREMENTS NEAR THE SSES SITE...3 APPENDIX G OCTOBER'1980 CONSTRUCTION SOUND PRESSURE L E VEL S~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~G S~~fl Report No.3024A-5 Bo1t Beranek and Newman Inc.LIST OF FIGURES page Figure 1.Map of general area near the SSES site showing sound level measurement; locations and site property line..............

~~~5 , Figure 2.Map of area within five miles of SSES site showing dist;ant ambient sound level measure-ment locations and site property lines..........

Figure 3.Photograph of construction of main station complex taken on 31 July 1980.Uiew looking o the sout;h..................

7 Figure 4.Median ambient, and 1974-1976, and 1978-1980 construction sound pressure levels obtained at location 2..~~~~~~~~8 Figure 5.Figure 6.Median ambient, and 1974-1976, and construction sound pressure levels at location 3.....................

Median ambient, and 1974-1976, and construction sound pressure levels at location 4.....................

1978-1980 obtained~~~~~~~~~~~~~~9 1978-1980 obtained~~~~~~~~~~~~~~10 Figure 7.Median ambient;, and 1974-1976, and construction sound pressure levels at location 5.....................

1978-1980 obtained~~~~~~~~~~~~~~ll LIST OF TABLES Table I.List of instruments used during trip showing dates of laboratory calibrat;ion.................

Table II.Summary of median sound level measurements, d BA o~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~13 T~~~~l Report No.3024A-5 Bolt Beranek and Newman Inc.INTRODUCTION This is the sixth in a series of progress report;s that present the results of const;ruction noise measurement;s made in the vicinity of the Susquehanna St;earn Electric Station (SSES)site.These measurements, obtained by Bolt Beranek and Newman Inc.(BBN)during the week of 6-10 October 1980, serve to update the acoustic description of the community near t;he site.Xn addit;ion, ambient sound level measurements were made at five locations more distant from the site.The five previous report;s summarize the ambient and construction noise measurements obtained in the years 1972 t'hrough 1979.Construction activity continued on Units 1 and 2 and the common facilities during the October 1980 site visit.At that time, work was concentrated in the main power block, switchyard,'nit; 2 cooling tower, batch plant, and west;landfill areas.Plant roads were being paved and earth work had started at the new emergency center near the west property line.The con-struction of Unit 1 was approximately 87$complete, and that;of Unit;2 was 60$complete.The work involved mostly mechanical and electrical installation within the main buildings, earth-moving at the emergency center and west landfill areas, and form setting and concrete pouring of t;he Unit 2 cooling t;ower.The work force was about 23/less than last year.The number of machine operators, electricians, iron workers, pipe fitters, carpenters, and laborers was about 3000 on the day shift and approximately 450 on the evening shift.Little or no noisy outside work was performed on the evening and night shifts.Host effort was concentrated in t;he turbine-generator and react;or buildings as the power systems were being installed and tested.Ten-wheel trucks were used to haul earth to the western

~~~i l~~~1~~~

Report No.3024A-5 Bolt Beranek and Newman Inc.end of the site.The batch plant produced concrete for Che Unit;2 cooling tower.Plant roads were graded and paved using dozers, rollers, graders, paving equipment and trucks.Earth moving at the emergency center included Che use of a sheeps foot roller, a dozer, a scraper, and trucks.Xn the switchyard some erection and earth work was underway.The work force of 3450 people represented about a 235 reduction from the August 1979 level of 4500 people.Sound levels measured near Che site, locations 2-5, increased several.decibels due Co Che earth work associated with Che emergency center.The weather remained stable during the site visit;no precipitation or high winds were observed.The skies were generally clear or partly cloudy.Daytime temperatures were between 55 F and 70oF.At night the temperatures were less, about 45 F Co 50oF.The wind speeds were less Chan 10 mph.The measurement locations near the site are illustrated in Fig.1;the locations for additional ambient measurements more distant from Che site are shown in Fig.2.The progress of SSES construction is shown in Fig.3, a photograph taken on 31 July 1980.Table I lists the measurement instruments employed during the site visit and includes their respective dates of calibra-tion.The field measurement and calibration techniques were similar to Chose of previous visits;these procedures are described in BBN Report;3024.

~l~~~~~~~l:~l~

Report No.3024A-5 Bo1t Beranek and Newman Inc.2.SOUND LEVEL MEASUREMENTS NEAR THE SSES SITE The median sound pressure levels observed at locations 2 Co 5 near Che site are illustrated in Figs.4 through 7.These figures also compare these data with sound pressure levels obtained during previous years of site construction and pre-construction activity.Tabulations of Che sound pressure level statistical data obtained at these nearby locations and several locations within five miles of Che site appear in Appendix G.Xt should be noted Chat Che data presented in Appendix G include local sound contributors, such as crickets and other insects, in addition Co Che distant sounds of traffic, aircraft, and SSES construction.

At locations 2 to 5 shown in Fig.1, construction.

sounds were generally audible.The construction sound sources included cranes, cherry pickers, trucks, dosers, loaders, scrapers, rollers, equipment backup alarms, the paging system, and hand Cool operations such as hammering.

The median sound pressure levels presented in Fig.4 for location 2 increased from August 1979 to October 1980.The median A-weighted sound level was 53 dB(A)for Che October 1980 measurements, compared to the August 1979 value of 48 dB(A).Earthmoving equipment in the nearby emergency center area caused this increase.Figure 5 illustrates Che median sound pressure levels obtained at location 3.Construction sounds were barely audible here last year because of the sound attenuation provided by a nearby ridge and because most construction work was indoors.During this trip the sound levels had increased due Co work at Che emergency center.

~~~~/)~~4 i Report No.3024A-5 Bolt Beranek and Newman Inc.At location 4, near the south property line of the site in the Bell Bend Community, the median sound level was 47 dB(A).This level is 2 dB greater than in August 1979.The sound level data for this location are presented in Fig.6.Figure 7 exhibits the sound level data for" location 5, a-position to the east across the Susquehanna River.The median sound level of 45 dB(A)was influenced by many community sounds, including birds and traffic on Rte.11 and Rte.239, in addition to the engines, backup alarms, and pages associated with the construction project;.Since construction began, the measured median sound levels have ranged between 42 and 47 dB(A)at this location.A summary of the median construction sound levels-is given for the above locations in Table II.The measurement team visited location 7 several times during the October 1980 trip.This location, which is approxi-mately one mile to the northwest of the site, is well shielded by an intervening ridge.Noise produced by local farm sources and by earthmoving equipment on the west side of the SSES site was audible at this location.

~~~~~~ig Oo)0 0 0 oo o 0 0 4000 fr~o~~~~~~~~~~~I~'~0 2'1 I l l J$/0"I-'/p f 0 0'+~~)~~~': ':"'.a~ggr/+

+~@CD./((~',~o9 j'/'(.-.-'~~~',(~council C p I)gW~~i"': L-~i O GD C)l CJI CV O FIG.1.MAP OF GENERAL AREA NEAR THE SSES SITE SH01IING SOUND LEVEL MEASUREMENT LOCATIONS AND SITE PROPERTY LINE.O

Report No.3024A-5 Bolt Beranek and Newman Inc./OI I~~/jt)1 es a+Saltu ClI~.ia:c 0 2 3 MILES FIG.2.MAP OF AREA WITHIN FIVE MILES OF SSES SITE SHOWING DISTANT LINES.AMBIENT SOUND LEVEL MEASUREMENT LOCATIONS AND SITE PROPERTY I'l'I l l~4~ill l FIG.3.PHOTOGRAPH OF CONSTRUCTION OF MAIN STATION COMPLEX TAKEN ON 31 JULY 1980.VIEW LOOKING TO THE SOUTH.BBN Job No.139056 March 1981 I

Report No.3024A-5 Bolt Beranek and Newman Inc.80 70<60 CV C)C)o O, P~50 cc 40 O D Z 30 0 0 5 0 0 1974 CONSTRUCTION 1975 CONSTRUCTION 1976 CONSTRUCTION 1978 CONSTRUCTION 1979 CONSTRUCTION 1980 CONSTRUCTION PRECONSTRUCTION AMBIENT 1972, 1973, 1974 20 10 63 125 250 500 1000 2000 4000 8000 dBA OCTAVE BAND CENTER FREQUENCY (Hz)FIG.4.MEDIAI'I, AMBIENT AND 1974-1976, AND 1978-1980 CONSTRUCTION SOUND PRESSURE LEVELS OBTAINED AT LOCATION 2.BBN Job No.139056 March 1981 l I l Report No.3024A-5 Bolt Beranek and Newman Inc.80+60 F Q 50 LLI a: 40~+O$30 8 0 0 0 1974 CONSTRUCTION 1975 CONSTRUCTION 1976 CONSTRUCTION 1978 CONSTRUCTION 1979 CONSTRUCTION 1980 CONSTRUCTION PRECONSTRUCTION AMBIENT 1972, 1973, 1974 0 0 10 125 250 500 1000 2000 4000 8000 dBA OCTAVE BAND CENTER FREQUENCY (Hz)FIG.5.MEDIAN AMBIENT, AND 1974-1976, AND 1978-1980 CONSTRUCTION SOUND PRESSURE LEVELS OBTAINED AT LOCATION 3.BBN Job No.139056 March 1981' i l i~~I 5 Report No.3024A-5 Bolt Beranek and Newman Inc.80 70 5 60 8 8 P~50~40 O Z 30 8 0 0 0 1974 CONSTRUCTION 1975 CONSTRUCTION 1976 CONSTRUCTION 1978 CONSTRUCTION

%979 CONSTRUCTION 1980 CONSTRUCTION PRECONSTRUCTION AMBIENT 1972, 1973, 1974 20 10 63'I25 250 500 1000 2000 4000 8000 dBA OCTAVE BAND CENTER FREQUENCY (Hz)FIG.6.MEDIAN AMBIENT, AND 1974-1976, AND 1978-1980 CONSTRUCTION SOUND PRESSURE LEVELS OBTAINED AT LOCATION 4.BBN Job No.139056 March 1981 10 I i E I Report No.3024A-5 Bolt Beranek and Newman Inc.80 70 Q 60 C4 CI C)Cl C)P Q 50 ce 40 O g 30 8 0 0 0 1974 CONSTRUCTION 1975 CONSTRUCTION 1976 CONSTRUCTION 1978 CONSTRUCTION 1979 CONSTRUCTION 1980 CONSTRUCTION PRECONSTRUCTION AMBIENT 1972, 1973, 1974 20 10 63 125 250 500 1000 2000 4000 8000 dBA OCTAVE BAND CENTER FREQUENCY (Hz)FIG.7.MEDIAN AMBIENT, AND 1974-1976, AND 1978-1980 CONSTRUCTION SOUND PRESSURE LEVELS OBTAINED AT LOCATION 5.BBN Job No.139056 March 1981 11 I l I Report No.3024A-5 Bol t Beranek and Newman Inc.TABLE 1.LIST OF INSTRUMENTS USED DURING TRIP SHOWING DATES OF LABORATORY CALIBRATION-Date of Trip Type*Make>Model Serial Number Date of Calibration Befo're Trip After Trip 10-6-80 to PC BK SLM BK OBF BK 2203 1613 4220 112881 151339 274218 8-18-80 8-18-80 8-19-80 12-3-80 12-3-80 12-3-80 10-10-80 TR KN B-61-1107 9-24-80 1-5-81*SLM-Sound Level Meter OBF-Octave Band Filter PC-Pistonphone Calibrator TR-Tape Recorder i BK-Bruel and Kjaer KN-Kudelski Nagra

Report No.3024A-5 Bolt Beranek and Newman Inc.TABLE II.

SUMMARY

OF MEDIAN SOUND LEVEL MEASUREMENTS, dBA Location Preconstruction (1972 and 1973)Construction (Site Preparation) 1974 Construction (Steel Erection/Concrete Pouring)1975 Construction (Steel Erection/Cooling Tower Concrete Pouring)1976 30 40 47 29 39 33 35 32 54 40 47 35 47 42'43 31 37 35*Construction (Steel Erection/Machinery Installation) 1978 Construction (Machinery Installation/

Cooling Tower Concrete Pouring)1979 43 48 31 45 44(31)i.50 46 43 36 Construction (Machinery Installation 5 Startup Test/Emer-gency Building Site Preparation) 1980 53 38 47 45 42*No construction activity audible.t(N)Sound level without local housing construction.

13 Report No.3024A-5 Bolt Beranek and Newman Inc.APPENDIX G OCTOBER 1980 CONSTRUCTION SOUND PRESSURE LEVELS (dB re: 0.0002 i~bar)

I I Report No.3024A-5 Bolt Beranek and Newman Inc.TAPE RECORDED DATA (Statistical Analysis)LEGEND ba cs eng h hm p t(a)t(ll)tra trn aircraft birds backup alarms on mobile equipment chain saw dog(s)barking gas and diesel engine equipment helicopter(s) hammer insects and crickets lawnmower page system local traffic site access road traffic traffic on U.S.Route ll tractor train wind in brush and Crees 99%95$90$percent;of sample period 505 sound level was exceeded 10$5A 1g Note: Sound pressure level data presented in appendix include a ma)or contributor, insects and crickets, in addition to the construction activity.LOCATION 1 No data G-2 l

Report No.3024A-5 Bolt Beranek and Newman Inc.LOCATION 2 6 October 1980 14:16 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 57 50 59 52 60 53 64 57 66 59 67 59 68 60 sound 250 500 43 45 43 47 44 48 56 52 57 53 59 55 sources: a j 1000 2000 42 44 38 45 39 48 42 52 46 47 57 52 b, cs, en@, 4000 8000 26 38 26 40 26 40 28 43 45 45 37 47 OA dBA 63 48 64 49 64 50 66 68 56 68 56 69 59 7 October 1980 09:57 Octave Band Center Frequency (Hz)99%95 0/90%50%10%5%1%63 59 61 63 68 71 72 73 125 250 500 47 40 39 50 43 41 51 44 43 54 50 48 58 54 59 55 52 62 57 55 1000 2000 40 34 42 37 43 38 47 51 45 52 45 48 4000 8000 27 46 28 47 29 47 30 50 33 51 34 40 51 OA dBA 63 49 65 49 66 50 69 53 72 55 72 56 73 59 sound sources: ba, en@, i, t 7 October 1981 22: 33 99%95%90%50%10%5%1%63 49 49 50 51 55 56 57 39 38 36 40 38 37 40 38 37 42 39 39 53 50 44 55 53 45 58 55 46 34 26 34 27 34 27 36 29 40 41 32 43 1?18 21 18 Octave Band Center Frequency (Hz)125 250 500 1000 2000 4000 8000 OA dBA 57 36 58 37 58 37 58 39 61 42 62 43 63.45 sound sources: p, t (11)G-3 l

Report No.3024A-5 Bo1t Beranek and Newman Inc.LOCATION 2 (continued) 8 October 1980 15:43 Octave Band Center Frequency (Hz)99%95%90%50%10%-5%1%63 60 61 62 66 69 70 71 1000 42 43 44 47 51 51 53 125 49 50 51 56 58 59 61 250 500 42 42 44 42 44 49 48 53 53 54 53 56 sound sources: en@, 2000 40 41 41 43 47 49 50 W 4000 34 35 36 40 44 46 48 8000 32 33 33 37 40 42 44 OA dBA 66 47 66 48 67 49 70 51 74 55 75 56 79 57 9 October 1980 11:02 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 61 61 62 64 67 69 71 125 250 500 46 46 54 47 47 47 48 58 51 52 62 55 56 62 61 59 64 64 62 1000 46 47 48 52 55 57 59 2000 40 41 42 45 48 49 51 4000 30 32 32 35 39 41 42 8000.36 36 37 38 39 40 41 OA dBA 66 49 67 50 67 69 54 58 72 59 73 61 sound sources: b, ba, en@, hm, 9 October 1980 14:38 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 59 54 61 62 56 68 59 71 62 72 63 64 sound 250 500 48 49 49 51 51 52 56 56 61 61 62 63 64 64 sources: 1000 48 50 50 54 59 59 61 ba, eng, 2000 40 42 42 46 50 51 52 4000 27 28 29 37 38 40 8000 33 35 37 38 38 39 OA dBA 66 67 52 67 53 70 57 61 73 62 74 64

Report No.3024A-5 Bol t Beranek"and Newman Inc.LOCATION 3 6 October 1980 14:51 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 40 41 45 63 67 71 125 33 34 34 36 61 68 72 250 34 35 35 36 55 58 61 500 28 28 28 31 48 51 55 sound sources: 1000 2000 27 25 27 25 27 26 29 27 40 42 32 47 36 a, b, eng, h 4000 8000 27 28 27 29 28 29 29 32 31 33 33 34 36 34 OA dBA 45 46 46 36 50 38 68 52 74 55 76 58 7 October 1980 09.23 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 46 37 47 38 48 39 50 42 54 55 57 66 sound 500 28 28 29 32 40 43 50 250 35 36 36 39 47 52 59 sources: 1000 2000 26 26 25 27 25 28 26 31 27 34 28 39 3o a, b, en@, 4000 8000 25 26 25 27 25 27 27 29 29 31 30 31 30 35 OA dBA 34 51 35 52 35 54 37 58 44 61 48 66 7 October 1980 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 47 47 48 39 49 41 49 52 51 53 53 sound 500 27 28 28 30 38 40 250 38 38 38 39 44 46 47 sources: 1000 2000 23 23 23 25 17 32 23 34 25 39 30 a, t(11)17 18 21.18 20 4000 8000 OA dBA 57 27 57 28 28 57 30 59 35 59 38 60 40

Report No.3024A-5 Bo1t Beranek and Newman Inc.LOCATION 3 (continued) 8 October 1980 16:26 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 43 44 44 47 56 60 125 37 38 38 41 52 55 57 250 31 31 32 45 47 53 500 32 32 32 37 38 41 sound sources: 1000 2000 31 27 31 2?32 28-33 30 36 34 38 35 40 39 a, b, en@, 4000 28 28 28 30 32 33 36 t(11), 8000 19 19 21 27 29 32 w OA dBA 48 36 49 3V 49 3V 52 39 59 32 61 44 64 48 9 October 1980 11:29 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 48 41 50 43 51 44 54 48 59 55 60 56 62 59 sound 250 34 35 35 38 44 46 51 500 31 32 32 36 39 40 44 sources: 1000 2000 31 31 32 32 33 32 36 35 40 40 41 43 43 a>bp ip lp 4000 29 29 30 33 36 37 38 t(11), 8000 29 29 29 31 33 35 w OA dBA 53 39 54 39 40 5V 43 61 46 62 46 63 48 9 October 1980 14:l2 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 40 35 40 36 42 39 48 49 51 55 57 60 sound 250 29 30 30 32 39 46 54 500 26 26 27 31 39 50 sources: 1000 2000 25 23 25 25 26'6 29 29 39 35 46 42 a, b, en@, 4000 24 26 2'6 29 34 35 39 P>8000 OA 27 45 28 46 28 46 39 48 32 55 34 58 37 63 t(ll), w dBA 33 34 34 37 47 53

Report No.3024A-5 Bolt Beranek and Newman Inc.LOCATION 4 6 October 1980 13:55 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 52 44 53 45 46 56 48 61 52 63 53 69 55 sound 500 37 38 39 41 46 48 50 250 39 40 40 42 47 49 51 sources: 1000 36 37 38 41 46 48 51 b, ba, 2000 4000 29 27 31 27 31 27 34 28 39 30 45 en@, hm, 8000 OA 44 59 44 59 45 60 47 61 49 64 49 66 50 70 p, t(a)dBA 45 46 47 49 51 52 54 7 October 1980 10:30 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 53 54 54 57 60 62 66 125 47 48 48 52 58 63 jl.250 41 42 42 45 54 56 62 500 38 39 40 42 48 51 56 sound sources: 1000 2000 4000 37 31 26 37 32 26 38 32 27 40 34 28 45 38 32 46 40 32 50 46 36 a, b, ba, en@, hm, 8000 OA 35 59 36 60 37 60 42 62 44 66 44 68 45 t(a)dBA 43 43 44 47 51 53 60 7 October 1980 23:O6 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 49 43 50 43 50 44 54 47 60 65 57 70 61 sound 500 34 35 36 39 44 46 250 39 39 40 42 45 46 48 sources: 1000 20 30 32 32 36 43 45 a, t(11)00 4000 8000 22 23 26 18 33 20 18 35 27 21 OA dBA 57 58 35 58 35 60 39 64 44 67 45 71 46 G-7 l I I li I Report No.3024A-5 Bolt Beranek and Newman Inc.LOCATION 4 (continued) 8 October 1980 15:10 Octave Band Center Frequency (Hz)99%o 9.5%90%50%o 10%5%1%63 54 55 55 58 63 65 69 125 49 50 50 52 56 57 59 250'00 43 42 43 43 44 44 46 45 49 48 49 48 53 52 40 35 28 41 35 29 41 36 30 43 38 32 45 40 35 46 41 36 50 44 37 36 37 37 38 39 39 40 1000 2000 4000 8000 OA dBA 62 44 63 45 64 45 69 46 74 49 76 50 79 53 sound sources: a o b, ba, eng, i, p, t(a), t(11), w 9 October 1980 10:33 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 55 51 56 52 57 53 59 56 62 60 63 61 66 63 sound 250 500 44 44 46 45 46 48.47 51 50 52 51 54 53 sour ces: a o 1000 43 43 44 45 47 48 49 ba, 2000 4000 35 25 36 36 25 38 27 40 28 41 29 44 eng, hm, p>31 32 33 34 35 36 36 w 8000 OA dBA 63 46 64 46 64 47 67 48 69 50 70 50 71 52 9 October 1980 15: 06 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 55 49 55 50 56 51 59 53 62 56 63 57 65 60 sound 250 500 43 41 44 42 44 43 44 50 46 47 54 48 sources: a OA 40 30 23 40 31 23 41 31 24 46 37 27 47 38 28 49 41 35 35 35 36 37 37 37 62 63 63 65 66 67 69 b, ba, eng, i, p, t(a), w 1000 2000 4000 8000 dBA 42 43 43 48 49 51 Report No.3024A-5 Bol t Beranek and Newman Inc.LOCAT ION 5 6 October 1980 15:50 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 46 48 43 49 44 53 49 59 55 63 59 74 68 sound 500 38 39 39 41 46 52 250 39 39 40 42 48 51 62 sources: 1000 2000 4000 8000 35 27 28 36 35 28 28 37 36 28 28 37 38 33 30 40 45 42 35 42 47 44 37 42 52 49 41 43 a, b, i, t, trn OA dBA 43 43 54 44 57 45 63 50 65 52 76 59 7 October 1980 13:02 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 49 46 50 47 50 47 53 52 61 62 67 66 74 75 sound 250 500 38 39 40 43 48 51 56 40 41 42.45 53 56 63 sources: 1000 36 37 38 40 47 50 53 en@, 2000 4000 8000 27 26 46 29 26 46 29 27 47 34 38 48 44 35 50 47 38 50 51 46 50 t, t(a)OA dBA 55 47 48 56 48 58 49 66 54 72 56 77 61 9 October 1980 09.42 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 49 44 99 45 50 46 54 49 61 60 68 63 73 66 sound 250 37 37 38 42 51 56 64 500 36 37 37 41 46 50 54 sources: 1000 2000 34 27 28 35 29 34 47 44 49 45 53 51 a, b, en@, 4000 8000 20 31 21 32 23 32 27 34 34 36 35 37 43 37 p, t, t(11)OA dBA 53 39 54 40 41 57 44 65 70 55 74 60 trna w G-9 Report No.3024A-5 Bolt Beranek and Newman Inc.LOCATION 5 (continued) 9 October 1980 16:40 Octave Band Center Frequency (Hz)99$958 90$50$10$5$lg 63 125 40 38 42 39 42 40 46 57 57 59 60 67 64 sound 250 500 33 32 34 33 35 33 39 36 44 54 47 59 50 sources: 1000 2000 4000 8000 29 25 27 32 30 27 27 33 31 28 28 33 35 32 30 35 43, 41 33 37 44 43 35 38 48 45 37 38 a, b, i, t, t(ll), w OA dBA 37 48 38 49 42 62 49 64 51 68 54 G-10

Report No.3024A-5 Bolt Beranek and Newman Inc.LOCAT ION 7 10 October 1980 09:46 Octave Band Center Frequency (Hz)995 95$90$50%10$5$lg 63 125 54 51 54 52 55 52 57 54 61 63 63 64 64 65 Sound 250 500 42 37 42 37 43 37 45 39 49 50 43 53 48 sources: 1000 28 29 29 32 37 40 45 b, ba, 2000 4000 8000 OA 19--58 20--58'22--59~27 21-60 36 29 19 65 38 31 21 66 41 35 25 67 d, en@, i, tra dBA 40 41 41 42 48 49 50

Report No.3024A-5 Bolt Beranek and Newman Inc.LOCATION A 9 October 1980 20:20 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%LOCATION B 63 125 36 32 37 32 38 33 39 35 45 40 47 43 50 47 sound 250 500 27 19 27 20 27 20 28 21 32 28 40 44 35 sources: 19 19 21 24 26 36 W 20 23 24 28 19 22 23 26 20 21 25 1000 2000 4000 8000 OA dBA 42 26 43 26 43 27 45 28 49 36 53 39 No Data-Construction Noise Audible.LOCAT ION C 9 October 1980 17:24 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 40 34 42 38 56 49 61 62 60 63 64 sound 250 500 29 25 30 26 31 26 34 51 43 56 48 61 54 sources: 1000 2000 4000 8000 25 23 24 20 26 24 24 20 27 25 25 21 31 29 28 24 41 38 34 29 47 42 37 32 54 48 42 37 a, b, d, i, 1, t, tra, w OA dBA 45 47 48 58 39 64 48 65 52 67 59 G-12 I I I

'Report No.3024A-5 Bolt Beranek and Newman Inc.LOCATION 0 9 October 1980 18:22 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 44 34 36 45 37 50 44 68 69 54 69 63 sound 250 500 28 23 28 29 25 31 30 37 36 40 38 47 42 sources: 1000 2000 21 22 23 20 28 22 34 30 37 32 40 a, d, 4000 8000 18'8 2220 25 21 29 23 OA I dBA 29 48 30 48 30 52 35 69 69 69 49 LOCATION E 9 October 1980 19:51 Octave Band Center Frequency (Hz)99%95%90%50%10%5%1%63 125 33 28 33 29 34 29 35 31 38 35 38 36 45 40 sound 250 500 27 24 28 25 28 25 29 26 30 29 32 30 36 33 sources: d, 000 2000 21 21 22 23 19 25 22 30 28 4000 8000 19 21 20 24 25 25 27 25 30 OA dBA 40 28 40 28 41 29 30 44 45 33 49 36 G-13