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Home My WebLink AboutAVAGO TECHNOLOGIES BLDG. 4 WEST EXPANSION - MJA/FDP - FDP130006 - REPORTS - MAPS/GRAPHICS (5)_1 • - �1 >s e Whisper Quiet Crossflow CadnaA Noise Propagation Calculation Avago B4 Cooling Towers Model Includes: CT1 - BAC Whisper Quiet 3872C-PM CT2 - BAC Whisper Quiet 3872C-PM CT3 - BAC Whisper Quiet 3872C-PM CT4 - BAC Whisper Quiet 3113OC-QM CT5 - BAC Whisper Quiet 3583C-MM Berth (-10. 12' high) Model does not include foliage or fences Calculated noise levels ere A -weighted dBA at 16' above ground level (second story receiver) Calculated in accordance with ISO 9613 Prepared for Burkett Design I Avago Prepared by JDE f Geiler & Associates May 15. 2013 <= 35 dBA 35 - 40 dBA 40 - 45 dBA 45 - 50 dBA �50-55dBA �55-60dBA �60-65dBA �65-70dBA �70-75dBA �75-80dBA �80-85dBA C' >= 85 dBA Whisper Quiet Crossflow No Berm CadnaA Noise Propagation Calculation i VP ^ ' Avago 84 Cooling Towers 40 _Ak_ _ Model Includes: CT1 -BAC Whisper Quiet 3872C-PM - CT2 - BAC Whisper Quiet 3872C-PM e CT3- BAC Whisper Quiet 3872C-PM CT4 - BAC Whisper Quiet 31130C-OM 45 43 CT5- BAC Whisper Quiet 3583C-MM No Berm 5 Model does not Include foliage or fences - " 34 - _ J Calculated noise levels ere A -weighted dBA -Y - - at 16' above ground level (second story receiver) - Calculated In accordance with ISO 9613 59 dBA at 50• Prepared for Burkett Design / Avago s Prepared by JDE / Geller & Associates ( 58 dSA at 60• 59 dBA at 50' _ _7 \! May 15. 2013 Ae) y <=35dBA 35 - 40 dBA �40-45dBA _ <' a - 045-50dBA �50-55dBA L ` �55-60dBA 60 - 65 dBA ,— �65-70dBA _70-75dBA ®75-80dBA �80-85dBA �,= 85 dBA Whisper Quiet Crossflow CadnaA Noise Propagation Calculation -� ... `.".. Avago S4 Cooling Towers Model includes: CT1 - SAC Whisper Quiet 3872C-PM CT2 - BAC Whisper Quiet 3872C-PM CT3 - BAC Whisper Quiet 3872C-PM CT4 - BAC Whisper Quiet 31130C-OM 38 8 CT5 - BAC Whisper Quiet 3683C-MM Berm (-10. 12' high) Model does not include foliage or fences Calculated noise levels are A -weighted dBA at 16' above ground level (second story receiver) Calculated In accordance with ISO 9513 Prepared for Burkett Design / Avago Prepared by JDE / Geller & Associates at 50' _ r May 15, 2013 <=35dBA �35-40dBA �e =40-45dBA 7-745-50dBA �50-55dBA 55 - 60 dBA 60 - 65 dBA �y a 65 - 70 dBA 70 - 75 dBA ® 75 - 80 dBA 0 80 - 85 dBA >= 85 dBA Marley QuadraFlow w/ Barrier Wall and Absol Cal Noise propagation Calculation Avago B4 Cooling Towers Model Includes: CT1 - Marley QuadraFlow 24126 CT2 - Marley QuadraFlow 24126 CT3 - Marley QuadraFlow 24128 CT4 - Marley QuadraFlow 23225 CT5 - Marley QuadraFlow 23223 Berm (-10. 12' high) Barter Well (24' hlgh, 6' from Cooling Towers) Acoustically absorptive panels on entire building wde for and barrier wall Model does not Include foliage or fences I Calculated noise levels ere A -weighted dBA at 16' above ground level (second story receiver) Calculated in accordance with ISO 9613 Prepared by JDE / Geller & Associates Prepared for Burkett Design May 15, 2013 -� <= 35 dBA 35 - 40 dBA 40 - 45 dBA o ! }( ll F 45 - 50 dBA 50 - 55 dBA �55-60dBA 5 �60-65dBA '-- �65-70dBA �70-75dBA _75-80dBA 80-85dBA 0 >= 85 dBA Marley QuadraFlow w/ Barrier Wall CednaA Noise Propagation Calculation _ - Avago B4 Cooling Towers Model Includes: rr11 - - - x CT1 -Marley OuadraFlow 24126 LI❑ 1 ❑ CT3 - Marley OuadraFl w 24126 CT4 - Marley OuedraFlw 23225 50051 51 5 5 CT5 - Marley OuedraFlow 23223 _ Benn (-10. 12' high) Barrier Wall (24' high, 5' from Cooling Towers) Model does not Include foliage or fences Calculated noise levels are A -weighted dBA -� at /8' above ground level (second story receiver) Calculated In accordance with ISO 9513 Prepared by JDE / Geller & Associates r Prepared for Burkett Design May 15, 2013 <= 35 dBA �35-40dBA �40-45dBA a C 45 - 50 dBA �50-55dBA I � �80-85dBA �65-70dBA 70 - 75 dBA �75-80dBA 060-85dBA 0 >= 65 dBA Marley Quadi low CadnaA Noise Propagation Calculation Avago B4 Cooling Towers Model Includes: CT1 - Marley QuadraFlow 24126 CT2 - Marley QuadmFlow 24126 CT3 - Marley QuadmFlow, 24126 CT4 - Marley QuadmFlow 23225 CT5 - Marley QuedraFlow 23223 Berm (-10 - 12' high) Model does not include foliage or fences Calculated noise levels ere A -weighted dBA at 16' above ground level (second story receiver) Calculated in accordance with ISO 9613 Prepared by JDE / Geller S Associates _ Prepared for Burkett Design May 15, 2013 h—`� v: _ <= 35 dBA 35 - 40 dBA 40 - 45 dBA �a r,d � 045-50dBA M 50 - 55 dBA M55-60dBA ` _ 60 - 65 dBA _65-70dBA ,414 .M 70 - 75 dBA ®75-80dBA 080-85dBA >= 85 dBA dBA Existing Noise Levels Existing Noise Levels Measured May 9, 2013 16:45 - 19:00 (4:45 - 7:00 pm) "Evening" 5O dBA (18:20) - 21; 15. 22:15 (9:15- 10:15 pm) "Night" 50 dBA (21:35) All reported levels are "A -weighted Equivalent d88 (1845) 48 dBA (18:40) 47 dBA (18:30) Level" (LAeq) Sound Pressure Level. dBA (22:00) ^, 49 dBA (21:55) 48 dBA (21:45) 48 dBA (18:10) 46 dBA (18:25) —� - - - 49 dBA (21:30) 51 dBA (21:40) Checkered Circles Indicate the measurement positions at 8' above ground --- 55 dBA (17 20) 52 dBA (17:50) ' 54 dBA (17 45)--� 49 dBA (21:30) Measurements at North property Ilne were: -- --- --« r—Wk 5 minutes duration during Evening measurements 3 minutes duration during Night measurements +�-Yr Duration was long enough that LAeq was 55 dBA (21 30) of avers representative stable and re e levels. _ 55 dBA (17:18) P 9 54 cIBA (17:42) During Evening, traffic nolse from Ziegler was most prominent, with some traffic noise from - 65 dBA @=60' Technology Parkway, Hidden Pond Drive, Harmony Road, 1-25, and other distant traffic. During Night, noise from-25 was more prominent. CT2 was slightly audible at North property line, but was compliant with noise ordinance requirement <= 50 dBA. (Continuous — — - Background Level (1-90) wee less then 50 dBA __.,��,=ci•` -- — —� and was also being influenced by noise from 125 " — — and other distant traffic). During all measurements, wind was minor at an estimated 0 - IOmph blowing towards E/SE. Prepared for Burkett Design / Avago Prepared by JDE / Geller 3 Associates May 14, 2013 Jet take -off (at 305 meters), use of outboard motor, power lawn mower, motorcycle, farm tractor, 8 times as loud as 70 dB. jackhammer, garbage truck. Boeing 707 or DC-8 aircraft at one nautical mile (6080 ft) before landing 100 Serious damage possible in 8 hr (106 dB); jet flyover at 1000 feet (103 dB); Bell J-2A helicopter at 100 ft (100 dB). exposure Boeing 737 or DC-9 aircraft at one nautical mile (6080 ft) before landing (97 dB); power mower (96 dB); 90 4 times as loud as 70 dB. Likely motorcycle at 25 ft (90 dB). Newspaper press (97 dB). damage 8 hr exp Garbage disposal, dishwasher, average factory, freight train (at 15 meters). Car wash at 20 ft (89 dB). 2 times as loud as 70 dB. propeller plane flyover at 1000 ft (88 dB); diesel truck 40 mph at 50 ft (84 dB). diesel train at 45 mph at 80 Possible damage in 8 hr 100 ft (83 dB). Food blender (88 dB); milling machine (85 dB); garbage disposal (80 dB). exposure. Passenger car at 65 mph at 25 ft (77 dB); freeway at 50 ft from pavement edge 10 a.m. (76 dB). Living 70 Arbitrary base of comparison. Upper 70s are annoyingly loud to room music (76 dB); radio or TV -audio, vacuum cleaner (70 dB). some people. Conversation in restaurant, office, background music, Air conditioning unit at 100 ft 60 Half as loud as 70 dB. Fairly quiet Quiet suburb, conversation at home Large electrical transformers at 100 ft 50 One-fourth as loud as 70 dB. Library, bird calls (44 dB); lowest limit of urban ambient sound 40 One -eighth as loud as 70 dB. Quiet rural area 30 One -sixteenth as loud as 70 dB Very Quiet Whisper, rustling leaves 20 Breathing 10 Barely audible View from North No Text ADJACENT IL HIDDEN ij HOMES POND DRIVE 521' 427' INTERNAL 10'-12' BERM LOOP ROAD COOLING BUILDING TOWERS